Add declarative data-modal-cancel attribute to datasette-modal

Clicking any element inside a <datasette-modal> that carries a
data-modal-cancel attribute now calls requestClose("cancel"), so
Cancel buttons no longer need JavaScript wiring. Like other
dismissals this respects the busy property and the closeGuard hook.

The set-column-type, row-delete and create-table dialogs now use the
attribute instead of their own click listeners, and the plugin
documentation example is simplified to match (the regenerated docs
screenshot is unchanged).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TShiUYVMmmF4zyJR6GMw34

.github/actions/setup-sqlite-version/action.yml

@@ -1,39 +0,0 @@
-name: "Setup SQLite version"
-description: "Build and activate a specific SQLite version from its amalgamation archive"
-inputs:
-  version:
-    description: "The SQLite version to install"
-    required: true
-  cflags:
-    description: "CFLAGS to use when compiling SQLite"
-    required: false
-    default: ""
-  skip-activate:
-    description: "Set to true to skip modifying the library path"
-    required: false
-    default: "false"
-  fallback-urls:
-    description: "Whitespace-separated fallback download URLs to try after sqlite.org"
-    required: false
-    default: ""
-outputs:
-  sqlite-location:
-    description: "Directory containing the compiled SQLite library"
-    value: ${{ steps.build.outputs.sqlite-location }}
-runs:
-  using: "composite"
-  steps:
-    - shell: bash
-      run: mkdir -p "$RUNNER_TEMP/sqlite-versions/downloads"
-    - uses: actions/cache@v6
-      with:
-        path: ${{ runner.temp }}/sqlite-versions/downloads
-        key: setup-sqlite-version-${{ inputs.version }}-amalgamation-v1
-    - id: build
-      shell: bash
-      run: bash "$GITHUB_ACTION_PATH/setup-sqlite-version.sh"
-      env:
-        SQLITE_VERSION: ${{ inputs.version }}
-        SQLITE_CFLAGS: ${{ inputs.cflags }}
-        SQLITE_SKIP_ACTIVATE: ${{ inputs.skip-activate }}
-        SQLITE_EXTRA_FALLBACK_URLS: ${{ inputs.fallback-urls }}

.github/actions/setup-sqlite-version/setup-sqlite-version.sh

@@ -1,144 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-version_spec="${SQLITE_VERSION:?SQLITE_VERSION is required}"
-cflags="${SQLITE_CFLAGS:-}"
-skip_activate="${SQLITE_SKIP_ACTIVATE:-false}"
-extra_fallback_urls="${SQLITE_EXTRA_FALLBACK_URLS:-}"
-
-case "$version_spec" in
-  3.46 | 3.46.0)
-    sqlite_version="3.46.0"
-    sqlite_year="2024"
-    amalgamation_id="3460000"
-    builtin_fallback_urls="https://static.simonwillison.net/static/2026/sqlite-amalgamation-3460000.zip"
-    ;;
-  3.25 | 3.25.0)
-    sqlite_version="3.25.0"
-    sqlite_year="2018"
-    amalgamation_id="3250000"
-    builtin_fallback_urls="https://static.simonwillison.net/static/2026/sqlite-amalgamation-3250000.zip?v=1"
-    ;;
-  *)
-    echo "::error::Unsupported SQLite version '$version_spec'. Add its release year and amalgamation id to $GITHUB_ACTION_PATH/setup-sqlite-version.sh."
-    exit 1
-    ;;
-esac
-
-case "$(uname -s)" in
-  Linux)
-    library_name="libsqlite3.so.0"
-    library_path_var="LD_LIBRARY_PATH"
-    ;;
-  Darwin)
-    library_name="libsqlite3.dylib"
-    library_path_var="DYLD_LIBRARY_PATH"
-    ;;
-  *)
-    echo "::error::Unsupported platform $(uname -s)"
-    exit 1
-    ;;
-esac
-
-runner_temp="${RUNNER_TEMP:-}"
-if [ -z "$runner_temp" ]; then
-  runner_temp="$(mktemp -d)"
-fi
-
-filename="sqlite-amalgamation-${amalgamation_id}"
-official_url="https://www.sqlite.org/${sqlite_year}/${filename}.zip"
-download_dir="${runner_temp}/sqlite-versions/downloads"
-source_root="${runner_temp}/sqlite-versions/source"
-source_dir="${source_root}/${filename}"
-build_dir="${runner_temp}/sqlite-versions/build/${sqlite_version}"
-archive_path="${download_dir}/${filename}.zip"
-
-mkdir -p "$download_dir" "$source_root" "$build_dir"
-
-download_archive() {
-  local url
-  local candidate_path="${archive_path}.tmp"
-  local urls=("$official_url")
-
-  for url in $builtin_fallback_urls $extra_fallback_urls; do
-    urls+=("$url")
-  done
-
-  rm -f "$candidate_path"
-  for url in "${urls[@]}"; do
-    echo "Downloading SQLite ${sqlite_version} amalgamation from ${url}"
-    if curl \
-      --fail \
-      --location \
-      --show-error \
-      --retry 5 \
-      --retry-delay 2 \
-      --retry-max-time 180 \
-      --retry-all-errors \
-      --connect-timeout 20 \
-      --max-time 240 \
-      --output "$candidate_path" \
-      "$url"; then
-      mv "$candidate_path" "$archive_path"
-      return 0
-    fi
-
-    echo "::warning::Download failed from ${url}"
-    rm -f "$candidate_path"
-  done
-
-  echo "::error::Could not download SQLite ${sqlite_version} amalgamation"
-  return 1
-}
-
-if [ ! -f "${source_dir}/sqlite3.c" ]; then
-  if [ ! -f "$archive_path" ]; then
-    download_archive
-  fi
-
-  rm -rf "$source_dir"
-  unzip -q "$archive_path" -d "$source_root"
-fi
-
-if [ ! -f "${source_dir}/sqlite3.c" ]; then
-  echo "::error::Expected ${source_dir}/sqlite3.c after extracting ${archive_path}"
-  exit 1
-fi
-
-read -r -a cflag_args <<< "$cflags"
-
-echo "Compiling SQLite ${sqlite_version} to ${build_dir}/${library_name}"
-gcc \
-  -fPIC \
-  -shared \
-  "${cflag_args[@]}" \
-  "${source_dir}/sqlite3.c" \
-  "-I${source_dir}" \
-  -o "${build_dir}/${library_name}"
-
-if [ "$library_name" = "libsqlite3.so.0" ]; then
-  ln -sf "$library_name" "${build_dir}/libsqlite3.so"
-fi
-
-if [ -n "${GITHUB_OUTPUT:-}" ]; then
-  echo "sqlite-location=${build_dir}" >> "$GITHUB_OUTPUT"
-else
-  echo "sqlite-location=${build_dir}"
-fi
-
-case "$(printf '%s' "$skip_activate" | tr '[:upper:]' '[:lower:]')" in
-  true | 1 | yes)
-    echo "Skipping ${library_path_var} activation"
-    ;;
-  *)
-    existing_value="${!library_path_var:-}"
-    if [ -n "${GITHUB_ENV:-}" ]; then
-      if [ -n "$existing_value" ]; then
-        echo "${library_path_var}=${build_dir}:${existing_value}" >> "$GITHUB_ENV"
-      else
-        echo "${library_path_var}=${build_dir}" >> "$GITHUB_ENV"
-      fi
-    fi
-    echo "Added ${build_dir} to ${library_path_var}"
-    ;;
-esac

.github/workflows/deploy-latest.yml

@@ -14,46 +14,24 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - name: Check deployment prerequisites
-      id: deployment-prerequisites
-      env:
-        GCP_SA_KEY: ${{ secrets.GCP_SA_KEY }}
-        LATEST_DATASETTE_SECRET: ${{ secrets.LATEST_DATASETTE_SECRET }}
-      run: |
-        missing=()
-        for variable in GCP_SA_KEY LATEST_DATASETTE_SECRET; do
-          if [[ -z "${!variable:-}" ]]; then
-            missing+=("$variable")
-          fi
-        done
-        if (( ${#missing[@]} )); then
-          echo "::notice::Skipping deployment because required environment variables are missing: ${missing[*]}"
-          echo "available=false" >> "$GITHUB_OUTPUT"
-        else
-          echo "available=true" >> "$GITHUB_OUTPUT"
-        fi
     - name: Check out datasette
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
-      uses: actions/checkout@v7
+      uses: actions/checkout@v6
     - name: Set up Python
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       uses: actions/setup-python@v6
       with:
         python-version: "3.13"
         cache: pip
     - name: Install Python dependencies
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       run: |
         python -m pip install --upgrade pip
         python -m pip install . --group dev
-        python -m pip install sphinx-to-sqlite==0.1a1 "s3-credentials>=0.17"
+        python -m pip install sphinx-to-sqlite==0.1a1
     - name: Run tests
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' && github.ref == 'refs/heads/main' }}
+      if: ${{ github.ref == 'refs/heads/main' }}
       run: |
         pytest -n auto -m "not serial"
         pytest -m "serial"
     - name: Build fixtures.db and other files needed to deploy the demo
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       run: |-
         python tests/fixtures.py \
           fixtures.db \
@@ -62,14 +40,13 @@ jobs:
           plugins \
           --extra-db-filename extra_database.db
     - name: Build docs.db
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' && github.ref == 'refs/heads/main' }}
+      if: ${{ github.ref == 'refs/heads/main' }}
       run: |-
         cd docs
         DISABLE_SPHINX_INLINE_TABS=1 sphinx-build -b xml . _build
         sphinx-to-sqlite ../docs.db _build
         cd ..
     - name: Set up the alternate-route demo
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       run: |
         echo '
         from datasette import hookimpl
@@ -81,7 +58,6 @@ jobs:
         ' > plugins/alternative_route.py
         cp fixtures.db fixtures2.db
     - name: And the counters writable stored query demo
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       run: |
         cat > plugins/counters.py <<EOF
         from datasette import hookimpl
@@ -121,15 +97,12 @@ jobs:
     #     cat metadata.json
     - id: auth
       name: Authenticate to Google Cloud
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       uses: google-github-actions/auth@v3
       with:
         credentials_json: ${{ secrets.GCP_SA_KEY }}
     - name: Set up Cloud SDK
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       uses: google-github-actions/setup-gcloud@v3
     - name: Deploy to Cloud Run
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' }}
       env:
         LATEST_DATASETTE_SECRET: ${{ secrets.LATEST_DATASETTE_SECRET }}
       run: |-
@@ -148,12 +121,12 @@ jobs:
             --install 'datasette-ephemeral-tables>=0.2.2' \
             --service "datasette-latest$SUFFIX" \
             --secret $LATEST_DATASETTE_SECRET
-    - name: Upload latest documentation database to S3 (only for main)
-      if: ${{ steps.deployment-prerequisites.outputs.available == 'true' && github.ref == 'refs/heads/main' }}
-      env:
-        AWS_ACCESS_KEY_ID: ${{ secrets.S3_DATASETTE_DOCS_ACCESS_KEY }}
-        AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_DATASETTE_DOCS_SECRET_KEY }}
+    - name: Deploy to docs as well (only for main)
+      if: ${{ github.ref == 'refs/heads/main' }}
       run: |-
-        # Keep development documentation separate from the stable release database.
-        s3-credentials put-object datasette-docs latest/docs.db docs.db \
-          --content-type application/octet-stream
+        # Deploy docs.db to a different service
+        datasette publish cloudrun docs.db \
+            --branch=$GITHUB_SHA \
+            --version-note=$GITHUB_SHA \
+            --extra-options="--setting template_debug 1" \
+            --service=datasette-docs-latest

.github/workflows/documentation-links.yml

@@ -0,0 +1,16 @@
+name: Read the Docs Pull Request Preview
+on:
+  pull_request:
+    types:
+      - opened
+
+permissions:
+  pull-requests: write
+
+jobs:
+  documentation-links:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: readthedocs/actions/preview@v1
+        with:
+          project-slug: "datasette"

.github/workflows/playwright.yml

@@ -16,7 +16,7 @@ jobs:
       matrix:
         browser: [chromium, firefox, webkit]
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python 3.14
       uses: actions/setup-python@v6
       with:
@@ -25,14 +25,14 @@ jobs:
         cache: pip
         cache-dependency-path: pyproject.toml
     - name: Cache uv
-      uses: actions/cache@v6
+      uses: actions/cache@v5
       with:
         path: ~/.cache/uv
         key: ${{ runner.os }}-py3.14-uv-${{ hashFiles('pyproject.toml') }}
         restore-keys: |
           ${{ runner.os }}-py3.14-uv-
     - name: Cache Playwright browsers
-      uses: actions/cache@v6
+      uses: actions/cache@v5
       with:
         path: ~/.cache/ms-playwright/
         key: ${{ runner.os }}-playwright-${{ matrix.browser }}-${{ hashFiles('pyproject.toml') }}

.github/workflows/prettier.yml

@@ -10,8 +10,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out repo
-      uses: actions/checkout@v7
-    - uses: actions/cache@v6
+      uses: actions/checkout@v6
+    - uses: actions/cache@v5
       name: Configure npm caching
       with:
         path: ~/.npm

.github/workflows/publish.yml

@@ -2,7 +2,7 @@ name: Publish Python Package
 
 on:
   release:
-    types: [published]
+    types: [created]
 
 permissions:
   contents: read
@@ -14,7 +14,7 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
@@ -35,7 +35,7 @@ jobs:
     permissions:
       id-token: write
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
@@ -51,14 +51,12 @@ jobs:
     - name: Publish
       uses: pypa/gh-action-pypi-publish@release/v1
 
-  # After the first non-prerelease 1.0 release, disable this job on 0.65.x,
-  # even for later 0.65 releases, so they cannot overwrite the 1.0 stable docs.
   deploy_static_docs:
     runs-on: ubuntu-latest
     needs: [deploy]
     if: "!github.event.release.prerelease"
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:
@@ -68,27 +66,33 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install . --group dev
-        python -m pip install sphinx-to-sqlite==0.1a1 "s3-credentials>=0.17"
+        python -m pip install sphinx-to-sqlite==0.1a1
     - name: Build docs.db
       run: |-
         cd docs
         DISABLE_SPHINX_INLINE_TABS=1 sphinx-build -b xml . _build
         sphinx-to-sqlite ../docs.db _build
         cd ..
-    - name: Upload stable documentation database to S3
-      env:
-        AWS_ACCESS_KEY_ID: ${{ secrets.S3_DATASETTE_DOCS_ACCESS_KEY }}
-        AWS_SECRET_ACCESS_KEY: ${{ secrets.S3_DATASETTE_DOCS_SECRET_KEY }}
+    - id: auth
+      name: Authenticate to Google Cloud
+      uses: google-github-actions/auth@v2
+      with:
+        credentials_json: ${{ secrets.GCP_SA_KEY }}
+    - name: Set up Cloud SDK
+      uses: google-github-actions/setup-gcloud@v3
+    - name: Deploy stable-docs.datasette.io to Cloud Run
       run: |-
-        s3-credentials put-object datasette-docs docs.db docs.db \
-          --content-type application/octet-stream
+        gcloud config set run/region us-central1
+        gcloud config set project datasette-222320
+        datasette publish cloudrun docs.db \
+            --service=datasette-docs-stable
 
   deploy_docker:
     runs-on: ubuntu-latest
     needs: [deploy]
     if: "!github.event.release.prerelease"
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Build and push to Docker Hub
       env:
         DOCKER_USER: ${{ secrets.DOCKER_USER }}

.github/workflows/push_docker_tag.yml

@@ -13,7 +13,7 @@ jobs:
   deploy_docker:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Build and push to Docker Hub
       env:
         DOCKER_USER: ${{ secrets.DOCKER_USER }}

.github/workflows/spellcheck.yml

@@ -9,7 +9,7 @@ jobs:
   spellcheck:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:

.github/workflows/stable-docs.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v7
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0  # We need all commits to find docs/ changes
     - name: Set up Git user

.github/workflows/test-coverage.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Check out datasette
-      uses: actions/checkout@v7
+      uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:

.github/workflows/test-pyodide.yml

@@ -12,7 +12,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python 3.10
       uses: actions/setup-python@v6
       with:
@@ -20,7 +20,7 @@ jobs:
         cache: 'pip'
         cache-dependency-path: '**/pyproject.toml'
     - name: Cache Playwright browsers
-      uses: actions/cache@v6
+      uses: actions/cache@v5
       with:
         path: ~/.cache/ms-playwright/
         key: ${{ runner.os }}-browsers

.github/workflows/test-sqlite-support.yml

@@ -25,7 +25,7 @@ jobs:
           #"3.23.1" # 2018-04-10, before UPSERT
         ]
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
@@ -34,7 +34,7 @@ jobs:
         cache: pip
         cache-dependency-path: pyproject.toml
     - name: Set up SQLite ${{ matrix.sqlite-version }}
-      uses: ./.github/actions/setup-sqlite-version
+      uses: asg017/sqlite-versions@71ea0de37ae739c33e447af91ba71dda8fcf22e6
       with:
         version: ${{ matrix.sqlite-version }}
         cflags: "-DSQLITE_ENABLE_DESERIALIZE -DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_FTS3_PARENTHESIS -DSQLITE_ENABLE_RTREE -DSQLITE_ENABLE_JSON1"

.github/workflows/test.yml

@@ -11,17 +11,16 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v7
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
         cache: pip
         cache-dependency-path: pyproject.toml
-        check-latest: true
     - name: Build extension for --load-extension test
       run: |-
         (cd tests && gcc ext.c -fPIC -shared -o ext.so)

.github/workflows/tmate-mac.yml

@@ -10,6 +10,6 @@ jobs:
   build:
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Setup tmate session
       uses: mxschmitt/action-tmate@v3

.github/workflows/tmate.yml

@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v7
+    - uses: actions/checkout@v6
     - name: Setup tmate session
       uses: mxschmitt/action-tmate@v3
       env:

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11-slim-bookworm AS build
+FROM python:3.11.0-slim-bullseye as build
 
 # Version of Datasette to install, e.g. 0.55
 #   docker build . -t datasette --build-arg VERSION=0.55

Justfile

@@ -33,11 +33,10 @@ export DATASETTE_SECRET := "not_a_secret"
   uv run codespell datasette -S datasette/static --ignore-words docs/codespell-ignore-words.txt
   uv run codespell tests --ignore-words docs/codespell-ignore-words.txt
 
-# Run linters: black, ruff, prettier, cog
+# Run linters: black, ruff, cog
 @lint: codespell
   uv run black datasette tests --check
   uv run ruff check datasette tests
-  npm run prettier -- --check
   uv run cog --check README.md docs/*.rst
 
 # Apply ruff fixes

datasette/__init__.py

@@ -1,14 +1,8 @@
 from datasette.permissions import Permission  # noqa
 from datasette.version import __version_info__, __version__  # noqa
 from datasette.events import Event  # noqa
-from datasette.tokens import TokenHandler, TokenInvalid, TokenRestrictions  # noqa
-from datasette.utils.asgi import (  # noqa
-    Forbidden,
-    NotFound,
-    PayloadTooLarge,
-    Request,
-    Response,
-)
+from datasette.tokens import TokenHandler, TokenRestrictions  # noqa
+from datasette.utils.asgi import Forbidden, NotFound, Request, Response  # noqa
 from datasette.utils import actor_matches_allow  # noqa
 from datasette.views import Context  # noqa
 from .hookspecs import hookimpl  # noqa

datasette/_pytest_plugin.py

@@ -89,8 +89,7 @@ def pytest_runtest_protocol(item, nextitem):
                 continue
             try:
                 ds.close()
-            except Exception as e:  # noqa: BLE001
-                # Surfaced as a pytest warning; teardown must not fail the run
+            except Exception as e:
                 item.warn(
                     pytest.PytestUnraisableExceptionWarning(
                         f"Error closing Datasette instance: {e!r}"

datasette/actor_auth_cookie.py

@@ -1,9 +1,7 @@
-import time
-
-from itsdangerous import BadSignature
-
 from datasette import hookimpl
+from itsdangerous import BadSignature
 from datasette.utils import baseconv
+import time
 
 
 @hookimpl

datasette/blob_renderer.py

@@ -1,8 +1,7 @@
-import hashlib
-
 from datasette import hookimpl
+from datasette.utils.asgi import Response, BadRequest
 from datasette.utils import to_css_class
-from datasette.utils.asgi import BadRequest, Response
+import hashlib
 
 _BLOB_COLUMN = "_blob_column"
 _BLOB_HASH = "_blob_hash"

datasette/cli.py

@@ -1,45 +1,43 @@
 import asyncio
+import uvicorn
+import click
+from click import formatting
+from click.types import CompositeParamType
+from click_default_group import DefaultGroup
 import functools
 import json
 import os
 import pathlib
+from runpy import run_module
 import shutil
+from subprocess import call
 import sys
 import textwrap
 import webbrowser
-from runpy import run_module
-from subprocess import call
-
-import click
-import uvicorn
-from click import formatting
-from click.types import CompositeParamType
-from click_default_group import DefaultGroup
-
 from .app import (
+    Datasette,
     DEFAULT_SETTINGS,
     SETTINGS,
     SQLITE_LIMIT_ATTACHED,
-    Datasette,
     pm,
 )
 from .inspect import inspect_tables
 from .utils import (
-    ConnectionProblem,
     LoadExtension,
-    SpatialiteConnectionProblem,
-    SpatialiteNotFound,
     StartupError,
-    StaticMount,
-    ValueAsBooleanError,
     check_connection,
     deep_dict_update,
     find_spatialite,
+    parse_metadata,
+    ConnectionProblem,
+    SpatialiteConnectionProblem,
     initial_path_for_datasette,
     pairs_to_nested_config,
-    parse_metadata,
     temporary_docker_directory,
     value_as_boolean,
+    SpatialiteNotFound,
+    StaticMount,
+    ValueAsBooleanError,
 )
 from .utils.sqlite import sqlite3
 from .utils.testing import TestClient
@@ -77,7 +75,7 @@ class Setting(CompositeParamType):
             # Datasette 1.0, we turn bare setting names into setting.name
             # Type checking for those older settings
             default = DEFAULT_SETTINGS[name]
-            name = f"settings.{name}"
+            name = "settings.{}".format(name)
             if isinstance(default, bool):
                 try:
                     return name, "true" if value_as_boolean(value) else "false"
@@ -173,6 +171,7 @@ async def inspect_(files, sqlite_extensions):
 @cli.group()
 def publish():
     """Publish specified SQLite database files to the internet along with a Datasette-powered interface and API"""
+    pass
 
 
 # Register publish plugins
@@ -579,27 +578,27 @@ def serve(
         # https://github.com/simonw/datasette/issues/2389
         deep_dict_update(config_data, settings_updates)
 
-    kwargs = {
-        "immutables": immutable,
-        "cache_headers": not reload,
-        "cors": cors,
-        "inspect_data": inspect_data,
-        "config": config_data,
-        "metadata": metadata_data,
-        "sqlite_extensions": sqlite_extensions,
-        "template_dir": template_dir,
-        "plugins_dir": plugins_dir,
-        "static_mounts": static,
-        "settings": None,  # These are passed in config= now
-        "memory": memory,
-        "secret": secret,
-        "version_note": version_note,
-        "pdb": pdb,
-        "crossdb": crossdb,
-        "nolock": nolock,
-        "internal": internal,
-        "default_deny": default_deny,
-    }
+    kwargs = dict(
+        immutables=immutable,
+        cache_headers=not reload,
+        cors=cors,
+        inspect_data=inspect_data,
+        config=config_data,
+        metadata=metadata_data,
+        sqlite_extensions=sqlite_extensions,
+        template_dir=template_dir,
+        plugins_dir=plugins_dir,
+        static_mounts=static,
+        settings=None,  # These are passed in config= now
+        memory=memory,
+        secret=secret,
+        version_note=version_note,
+        pdb=pdb,
+        crossdb=crossdb,
+        nolock=nolock,
+        internal=internal,
+        default_deny=default_deny,
+    )
 
     # Separate directories from files
     directories = [f for f in files if os.path.isdir(f)]
@@ -622,7 +621,9 @@ def serve(
                 conn.close()
             else:
                 raise click.ClickException(
-                    f"Invalid value for '[FILES]...': Path '{file}' does not exist."
+                    "Invalid value for '[FILES]...': Path '{}' does not exist.".format(
+                        file
+                    )
                 )
 
     # Check for duplicate files by resolving all paths to their absolute forms
@@ -663,6 +664,16 @@ def serve(
         # Private utility mechanism for writing unit tests
         return ds
 
+    # Run async soundness checks before startup hooks, since invoke_startup
+    # now populates internal tables which requires querying each database
+    run_sync(lambda: check_databases(ds))
+
+    # Run the "startup" plugin hooks
+    try:
+        run_sync(ds.invoke_startup)
+    except StartupError as e:
+        raise click.ClickException(e.args[0])
+
     if headers and not get:
         raise click.ClickException("--headers can only be used with --get")
 
@@ -670,18 +681,10 @@ def serve(
         raise click.ClickException("--token can only be used with --get")
 
     if get:
-        # --get means we don't run Uvicorn at all
-        run_sync(lambda: check_databases(ds))
-
-        try:
-            run_sync(ds.invoke_startup)
-        except StartupError as e:
-            raise click.ClickException(e.args[0])
-
         client = TestClient(ds)
         request_headers = {}
         if token:
-            request_headers["Authorization"] = f"Bearer {token}"
+            request_headers["Authorization"] = "Bearer {}".format(token)
         cookies = {}
         if actor:
             cookies["ds_actor"] = client.actor_cookie(json.loads(actor))
@@ -702,54 +705,30 @@ def serve(
         sys.exit(exit_code)
         return
 
-    # check_databases, invoke_startup() and the uvicorn server all run on a
-    # single event loop, so that anything a plugin's "startup" hook schedules
-    # on the loop (asyncio.create_task, Lock/Queue/Event objects, ...) is
-    # still alive when the server starts handling requests.
-    async def _serve_async():
-        # Populate internal catalog tables before invoke_startup
-        await check_databases(ds)
-
-        # Run the full startup sequence (immutable-database table-count
-        # precompute + the "startup" plugin hooks) via the same entry point
-        # AsgiLifespan/AsgiRunOnFirstRequest use, so it's not skipped when
-        # uvicorn's lifespan.startup fires moments later.
-        try:
-            await ds._startup_sequence()
-        except StartupError as e:
-            raise click.ClickException(e.args[0])
-
-        # Start the server
-        url = None
-        if root:
-            ds.root_enabled = True
-            url = "http://{}:{}{}?token={}".format(
-                host, port, ds.urls.path("-/auth-token"), ds._root_token
-            )
-            click.echo(url)
-        if open_browser:
-            if url is None:
-                # Figure out most convenient URL - to table, database or homepage
-                path = await initial_path_for_datasette(ds)
-                url = f"http://{host}:{port}{path}"
-            webbrowser.open(url)
-        uvicorn_kwargs = {
-            "host": host,
-            "port": port,
-            "log_level": "info",
-            "lifespan": "on",
-            "workers": 1,
-        }
-        if uds:
-            uvicorn_kwargs["uds"] = uds
-        if ssl_keyfile:
-            uvicorn_kwargs["ssl_keyfile"] = ssl_keyfile
-        if ssl_certfile:
-            uvicorn_kwargs["ssl_certfile"] = ssl_certfile
-        server = uvicorn.Server(uvicorn.Config(ds.app(), **uvicorn_kwargs))
-        await server.serve()
-
-    asyncio.run(_serve_async())
+    # Start the server
+    url = None
+    if root:
+        ds.root_enabled = True
+        url = "http://{}:{}{}?token={}".format(
+            host, port, ds.urls.path("-/auth-token"), ds._root_token
+        )
+        click.echo(url)
+    if open_browser:
+        if url is None:
+            # Figure out most convenient URL - to table, database or homepage
+            path = run_sync(lambda: initial_path_for_datasette(ds))
+            url = f"http://{host}:{port}{path}"
+        webbrowser.open(url)
+    uvicorn_kwargs = dict(
+        host=host, port=port, log_level="info", lifespan="on", workers=1
+    )
+    if uds:
+        uvicorn_kwargs["uds"] = uds
+    if ssl_keyfile:
+        uvicorn_kwargs["ssl_keyfile"] = ssl_keyfile
+    if ssl_certfile:
+        uvicorn_kwargs["ssl_certfile"] = ssl_certfile
+    uvicorn.run(ds.app(), **uvicorn_kwargs)
 
 
 @cli.command()
@@ -906,7 +885,7 @@ async def check_databases(ds):
             )
         except ConnectionProblem as e:
             raise click.UsageError(
-                f"Connection to {database.path} failed check: {e.args[0]!s}"
+                f"Connection to {database.path} failed check: {str(e.args[0])}"
             )
     # If --crossdb and more than SQLITE_LIMIT_ATTACHED show warning
     if (
@@ -914,5 +893,9 @@ async def check_databases(ds):
         and len([db for db in ds.databases.values() if not db.is_memory])
         > SQLITE_LIMIT_ATTACHED
     ):
-        msg = f"Warning: --crossdb only works with the first {SQLITE_LIMIT_ATTACHED} attached databases"
+        msg = (
+            "Warning: --crossdb only works with the first {} attached databases".format(
+                SQLITE_LIMIT_ATTACHED
+            )
+        )
         click.echo(click.style(msg, bold=True, fg="yellow"), err=True)

datasette/column_types.py

@@ -64,14 +64,14 @@ class ColumnType:
         Return an HTML string to render this cell value, or None to
         fall through to the default render_cell plugin hook chain.
         """
-        return
+        return None
 
     async def validate(self, value, datasette):
         """
         Validate a value before it is written. Return None if valid,
         or a string error message if invalid.
         """
-        return
+        return None
 
     async def transform_value(self, value, datasette):
         """

datasette/csrf.py

@@ -40,12 +40,12 @@ def _origin_tuple(value):
     scheme = (parsed.scheme or "").lower()
     host = (parsed.hostname or "").lower()
     if not scheme or not host:
-        raise ValueError(f"missing scheme or host in {value!r}")
+        raise ValueError("missing scheme or host in {!r}".format(value))
     port = parsed.port  # may raise ValueError on bad ports
     if port is None:
         port = DEFAULT_PORTS.get(scheme)
     if port is None:
-        raise ValueError(f"unknown default port for scheme {scheme!r}")
+        raise ValueError("unknown default port for scheme {!r}".format(scheme))
     return scheme, host, port
 
 
@@ -125,7 +125,9 @@ class CrossOriginProtectionMiddleware:
                 return
             await self._forbid(
                 send,
-                f"Sec-Fetch-Site was {sec_fetch_site!r}, expected 'same-origin' or 'none'",
+                "Sec-Fetch-Site was {!r}, expected 'same-origin' or 'none'".format(
+                    sec_fetch_site
+                ),
             )
             return
 
@@ -139,11 +141,11 @@ class CrossOriginProtectionMiddleware:
         request_scheme = self._request_scheme(scope)
         try:
             origin_tuple = _origin_tuple(origin)
-            expected_tuple = _origin_tuple(f"{request_scheme}://{host}")
+            expected_tuple = _origin_tuple("{}://{}".format(request_scheme, host))
         except ValueError:
             await self._forbid(
                 send,
-                f"Malformed Origin {origin!r} or Host {host!r}",
+                "Malformed Origin {!r} or Host {!r}".format(origin, host),
             )
             return
 
@@ -153,7 +155,7 @@ class CrossOriginProtectionMiddleware:
 
         await self._forbid(
             send,
-            f"Origin {origin!r} does not match Host {host!r}",
+            "Origin {!r} does not match Host {!r}".format(origin, host),
         )
 
     def _request_scheme(self, scope):
@@ -161,8 +163,7 @@ class CrossOriginProtectionMiddleware:
             try:
                 if self.datasette.setting("force_https_urls"):
                     return "https"
-            except Exception:  # noqa: BLE001, S110
-                # Settings may not be readable this early; fall back to the ASGI scheme
+            except Exception:
                 pass
         return scope.get("scheme") or "http"
 

datasette/database.py

@@ -1,35 +1,33 @@
 import asyncio
 import atexit
+from collections import namedtuple
 import inspect
 import os
+from pathlib import Path
 import queue
+import sqlite_utils
 import sys
 import tempfile
 import threading
 import uuid
-from collections import namedtuple
-from pathlib import Path
 
-import sqlite_utils
-
-from .inspect import inspect_hash
 from .tracer import trace
 from .utils import (
     call_with_supported_arguments,
     detect_fts,
     detect_primary_keys,
     detect_spatialite,
-    escape_sqlite,
     get_all_foreign_keys,
     get_outbound_foreign_keys,
     md5_not_usedforsecurity,
-    sqlite3,
     sqlite_timelimit,
-    table_column_details,
+    sqlite3,
     table_columns,
+    table_column_details,
 )
 from .utils.sql_analysis import SQLAnalysis, analyze_sql_tables
-from .utils.sqlite import sqlite_derived_table_dependencies, sqlite_hidden_table_names
+from .utils.sqlite import sqlite_hidden_table_names
+from .inspect import inspect_hash
 
 connections = threading.local()
 
@@ -85,7 +83,6 @@ class Database:
         self.cached_hash = None
         self.cached_size = None
         self._cached_table_counts = None
-        self._cached_derived_table_dependencies = None
         self._write_thread = None
         self._write_queue = None
         self._closed = False
@@ -101,7 +98,9 @@ class Database:
 
     def _check_not_closed(self):
         if self._closed:
-            raise DatasetteClosedError(f"Database {self.name!r} has been closed")
+            raise DatasetteClosedError(
+                "Database {!r} has been closed".format(self.name)
+            )
 
     def _remove_pending_execute_future(self, future):
         with self._pending_execute_futures_lock:
@@ -140,7 +139,7 @@ class Database:
         if write:
             extra_kwargs["isolation_level"] = "IMMEDIATE"
         if self.memory_name:
-            uri = f"file:{self.memory_name}?mode=memory&cache=shared"
+            uri = "file:{}?mode=memory&cache=shared".format(self.memory_name)
             conn = sqlite3.connect(
                 uri, uri=True, check_same_thread=False, **extra_kwargs
             )
@@ -193,20 +192,21 @@ class Database:
             write_thread.join(timeout=10)
             if write_thread.is_alive():
                 sys.stderr.write(
-                    f"Datasette: write thread for {self.name!r} did not exit within 10s\n"
+                    "Datasette: write thread for {!r} did not exit within 10s\n".format(
+                        self.name
+                    )
                 )
                 sys.stderr.flush()
         for future in pending_execute_futures:
             try:
                 future.result()
-            except Exception:  # noqa: BLE001, S110
-                # Shutdown teardown - a failed pending write must not block close()
+            except Exception:
                 pass
         # Close anything still tracked in _all_file_connections
         for connection in self._all_file_connections:
             try:
                 connection.close()
-            except Exception:  # noqa: BLE001, S110
+            except Exception:
                 pass
         self._all_file_connections = []
         # Drop per-thread cached read connections we can reach
@@ -218,13 +218,13 @@ class Database:
         if self._read_connection is not None:
             try:
                 self._read_connection.close()
-            except Exception:  # noqa: BLE001, S110
+            except Exception:
                 pass
             self._read_connection = None
         if self._write_connection is not None:
             try:
                 self._write_connection.close()
-            except Exception:  # noqa: BLE001, S110
+            except Exception:
                 pass
             self._write_connection = None
         if self.is_temp_disk:
@@ -246,34 +246,19 @@ class Database:
         request=None,
         return_all=False,
         returning_limit=EXECUTE_WRITE_RETURNING_LIMIT,
-        transaction=True,
-        time_limit_ms=2000,
     ):
         self._check_not_closed()
         if returning_limit < 0:
             raise ValueError("returning_limit must be >= 0")
 
-        def execute_sql(conn):
+        def _inner(conn):
             cursor = conn.execute(sql, params or [])
             return ExecuteWriteResult.from_cursor(
                 cursor, return_all=return_all, returning_limit=returning_limit
             )
 
-        def _inner(conn):
-            try:
-                if time_limit_ms is None:
-                    return execute_sql(conn)
-                with sqlite_timelimit(conn, time_limit_ms):
-                    return execute_sql(conn)
-            except (sqlite3.OperationalError, sqlite3.DatabaseError) as e:
-                if e.args == ("interrupted",):
-                    raise QueryInterrupted(e, sql, params)
-                raise
-
         with trace("sql", database=self.name, sql=sql.strip(), params=params):
-            results = await self.execute_write_fn(
-                _inner, block=block, request=request, transaction=transaction
-            )
+            results = await self.execute_write_fn(_inner, block=block, request=request)
         return results
 
     async def execute_write_script(self, sql, block=True, request=None):
@@ -363,19 +348,9 @@ class Database:
                 self.ds._prepare_connection(self._write_connection, self.name)
             if transaction:
                 with self._write_connection:
-                    self._write_connection.execute("BEGIN IMMEDIATE")
                     result = fn(self._write_connection)
             else:
                 result = fn(self._write_connection)
-            if not block:
-                # There is no write thread here, so the write has already
-                # finished. Hand back the same (task_id, reply_future) shape
-                # _send_to_write_thread() returns, with the future already
-                # resolved, so the block=False path below is identical in
-                # both modes.
-                reply_future = asyncio.get_running_loop().create_future()
-                reply_future.set_result(result)
-                result = (uuid.uuid4(), reply_future)
         else:
             result = await self._send_to_write_thread(
                 fn, block=block, transaction=transaction
@@ -391,8 +366,7 @@ class Database:
             async def _dispatch_events_after_write():
                 try:
                     await reply_future
-                except Exception:  # noqa: BLE001
-                    # The write failed; skip success events regardless of why
+                except Exception:
                     # if the write failed, don't emit success events
                     return
                 for event in pending_events:
@@ -445,9 +419,11 @@ class Database:
             self._write_thread = threading.Thread(
                 target=self._execute_writes, daemon=True
             )
-            self._write_thread.name = f"_execute_writes for database {self.name}"
+            self._write_thread.name = "_execute_writes for database {}".format(
+                self.name
+            )
             self._write_thread.start()
-        task_id = uuid.uuid4()
+        task_id = uuid.uuid5(uuid.NAMESPACE_DNS, "datasette.io")
         loop = asyncio.get_running_loop()
         reply_future = loop.create_future()
         self._write_queue.put(
@@ -466,8 +442,7 @@ class Database:
         try:
             conn = self.connect(write=True)
             self.ds._prepare_connection(conn, self.name)
-        except Exception as e:  # noqa: BLE001
-            # Stored and re-raised to whoever queues the next write
+        except Exception as e:
             conn_exception = e
         while True:
             task = self._write_queue.get()
@@ -475,8 +450,7 @@ class Database:
                 if conn is not None:
                     try:
                         conn.close()
-                    except Exception:  # noqa: BLE001, S110
-                        # Best-effort close as the write thread exits
+                    except Exception:
                         pass
                 return
             exception = None
@@ -495,21 +469,19 @@ class Database:
                         except ValueError:
                             # Was probably a memory connection
                             pass
-                except Exception as e:  # noqa: BLE001
-                    # Write thread must survive any task failure or the database wedges
-                    sys.stderr.write(f"{e}\n")
+                except Exception as e:
+                    sys.stderr.write("{}\n".format(e))
                     sys.stderr.flush()
                     exception = e
             else:
                 try:
                     if task.transaction:
                         with conn:
-                            conn.execute("BEGIN IMMEDIATE")
                             result = task.fn(conn)
                     else:
                         result = task.fn(conn)
-                except Exception as e:  # noqa: BLE001
-                    sys.stderr.write(f"{e}\n")
+                except Exception as e:
+                    sys.stderr.write("{}\n".format(e))
                     sys.stderr.flush()
                     exception = e
             _deliver_write_result(task, result, exception)
@@ -576,7 +548,9 @@ class Database:
                         raise QueryInterrupted(e, sql, params)
                     if log_sql_errors:
                         sys.stderr.write(
-                            f"ERROR: conn={conn}, sql = {sql!r}, params = {params}: {e}\n"
+                            "ERROR: conn={}, sql = {}, params = {}: {}\n".format(
+                                conn, repr(sql), params, e
+                            )
                         )
                         sys.stderr.flush()
                     raise
@@ -629,7 +603,7 @@ class Database:
             try:
                 table_count = (
                     await self.execute(
-                        f"select count(*) from (select * from {escape_sqlite(table)} limit {self.count_limit + 1})",
+                        f"select count(*) from (select * from [{table}] limit {self.count_limit + 1})",
                         custom_time_limit=limit,
                     )
                 ).rows[0][0]
@@ -733,9 +707,9 @@ class Database:
             column_names
             and len(column_names) == 2
             and ("id" in column_names or "pk" in column_names)
-            and set(column_names) != {"id", "pk"}
+            and not set(column_names) == {"id", "pk"}
         ):
-            return next(c for c in column_names if c not in ("id", "pk"))
+            return [c for c in column_names if c not in ("id", "pk")][0]
         # Couldn't find a label:
         return None
 
@@ -781,17 +755,6 @@ class Database:
 
         return hidden_tables
 
-    async def derived_table_dependencies(self):
-        """Return implementation tables and the tables they derive from."""
-        schema_version = (await self.execute("PRAGMA schema_version")).first()[0]
-        if (
-            self._cached_derived_table_dependencies is None
-            or self._cached_derived_table_dependencies[0] != schema_version
-        ):
-            dependencies = await self.execute_fn(sqlite_derived_table_dependencies)
-            self._cached_derived_table_dependencies = (schema_version, dependencies)
-        return self._cached_derived_table_dependencies[1]
-
     async def view_names(self):
         results = await self.execute("select name from sqlite_master where type='view'")
         return [r[0] for r in results.rows]
@@ -888,10 +851,10 @@ def _apply_write_wrapper(fn, wrapper_factory, track_event):
 class WriteTask:
     __slots__ = (
         "fn",
-        "isolated_connection",
+        "task_id",
         "loop",
         "reply_future",
-        "task_id",
+        "isolated_connection",
         "transaction",
     )
 
@@ -932,7 +895,7 @@ class QueryInterrupted(Exception):
         self.params = params
 
     def __str__(self):
-        return f"QueryInterrupted: {self.e}"
+        return "QueryInterrupted: {}".format(self.e)
 
 
 class MultipleValues(Exception):

datasette/default_actions.py

@@ -2,8 +2,8 @@ from datasette import hookimpl
 from datasette.permissions import Action
 from datasette.resources import (
     DatabaseResource,
-    QueryResource,
     TableResource,
+    QueryResource,
 )
 
 
@@ -61,12 +61,6 @@ def register_actions():
             description="Create tables",
             resource_class=DatabaseResource,
         ),
-        Action(
-            name="create-view",
-            abbr="cv",
-            description="Create views",
-            resource_class=DatabaseResource,
-        ),
         Action(
             name="store-query",
             abbr="sq",
@@ -117,12 +111,6 @@ def register_actions():
             description="Drop tables",
             resource_class=TableResource,
         ),
-        Action(
-            name="drop-view",
-            abbr="dv",
-            description="Drop views",
-            resource_class=TableResource,
-        ),
         # Query-level actions (child-level)
         Action(
             name="view-query",

datasette/default_column_types.py

@@ -6,17 +6,6 @@ import markupsafe
 from datasette import hookimpl
 from datasette.column_types import ColumnType, SQLiteType
 
-_HTTP_URL_RE = re.compile(r"https?://\S+", re.IGNORECASE)
-
-
-def _normalize_http_url(value):
-    if not isinstance(value, str):
-        return None
-    normalized = value.strip()
-    if not _HTTP_URL_RE.fullmatch(normalized):
-        return None
-    return normalized
-
 
 class UrlColumnType(ColumnType):
     name = "url"
@@ -26,10 +15,7 @@ class UrlColumnType(ColumnType):
     async def render_cell(self, value, column, table, database, datasette, request):
         if not value or not isinstance(value, str):
             return None
-        normalized = _normalize_http_url(value)
-        if normalized is None:
-            return markupsafe.escape(value.strip())
-        escaped = markupsafe.escape(normalized)
+        escaped = markupsafe.escape(value.strip())
         return markupsafe.Markup(f'<a href="{escaped}">{escaped}</a>')
 
     async def validate(self, value, datasette):
@@ -37,7 +23,7 @@ class UrlColumnType(ColumnType):
             return None
         if not isinstance(value, str):
             return "URL must be a string"
-        if _normalize_http_url(value) is None:
+        if not re.match(r"^https?://\S+$", value.strip()):
             return "Invalid URL"
         return None
 

datasette/default_magic_parameters.py

@@ -1,9 +1,8 @@
+from datasette import hookimpl
 import datetime
 import os
 import time
 
-from datasette import hookimpl
-
 
 def header(key, request):
     key = key.replace("_", "-").encode("utf-8")

datasette/default_permissions/__init__.py

@@ -17,29 +17,18 @@ UNION/INTERSECT operations. The order of evaluation is:
 
 from __future__ import annotations
 
-from .config import config_permissions_sql as config_permissions_sql
-from .defaults import (
-    DEFAULT_ALLOW_ACTIONS as DEFAULT_ALLOW_ACTIONS,
-)
-from .defaults import (
-    default_action_permissions_sql as default_action_permissions_sql,
-)
-from .defaults import (
-    # Avoid "datasette.default_permissions" does not explicitly export attribute
-    default_allow_sql_check as default_allow_sql_check,
-)
-from .defaults import (
-    default_query_permissions_sql as default_query_permissions_sql,
-)
-from .restrictions import (
-    ActorRestrictions as ActorRestrictions,
-)
-
 # Re-export all hooks and public utilities
 from .restrictions import (
     actor_restrictions_sql as actor_restrictions_sql,
-)
-from .restrictions import (
     restrictions_allow_action as restrictions_allow_action,
+    ActorRestrictions as ActorRestrictions,
 )
 from .root import root_user_permissions_sql as root_user_permissions_sql
+from .config import config_permissions_sql as config_permissions_sql
+from .defaults import (
+    # Avoid "datasette.default_permissions" does not explicitly export attribute
+    default_allow_sql_check as default_allow_sql_check,
+    default_action_permissions_sql as default_action_permissions_sql,
+    default_query_permissions_sql as default_query_permissions_sql,
+    DEFAULT_ALLOW_ACTIONS as DEFAULT_ALLOW_ACTIONS,
+)

datasette/default_permissions/config.py

@@ -6,7 +6,7 @@ Applies permission rules from datasette.yaml configuration.
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, List, Optional, Set, Tuple
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -55,8 +55,8 @@ class ConfigPermissionProcessor:
 
     def __init__(
         self,
-        datasette: Datasette,
-        actor: dict | None,
+        datasette: "Datasette",
+        actor: Optional[dict],
         action: str,
     ):
         self.datasette = datasette
@@ -74,8 +74,8 @@ class ConfigPermissionProcessor:
         self.restrictions = actor.get("_r", {}) if actor else {}
 
         # Pre-compute restriction info for efficiency
-        self.restricted_databases: set[str] = set()
-        self.restricted_tables: set[tuple[str, str]] = set()
+        self.restricted_databases: Set[str] = set()
+        self.restricted_tables: Set[Tuple[str, str]] = set()
 
         if self.has_restrictions:
             self.restricted_databases = {
@@ -92,27 +92,16 @@ class ConfigPermissionProcessor:
             # Tables implicitly reference their parent databases
             self.restricted_databases.update(db for db, _ in self.restricted_tables)
 
-        # Resolve identity keys once per action, rather than scanning the
-        # restriction allowlist for every configured table's allow block.
-        self.restricted_table_keys = {
-            (db, self.action_obj.normalize_child(table) if self.action_obj else table)
-            for db, table in self.restricted_tables
-        }
-
-    def evaluate_allow_block(self, allow_block: Any) -> bool | None:
+    def evaluate_allow_block(self, allow_block: Any) -> Optional[bool]:
         """Evaluate an allow block against the current actor."""
         if allow_block is None:
             return None
-        # Values passed using ``-s permissions.* 1`` or ``0`` are parsed as
-        # integers, but should retain the CLI's boolean 1/0 behavior.
-        if isinstance(allow_block, int) and allow_block in (0, 1):
-            return bool(allow_block)
         return actor_matches_allow(self.actor, allow_block)
 
     def is_in_restriction_allowlist(
         self,
-        parent: str | None,
-        child: str | None,
+        parent: Optional[str],
+        child: Optional[str],
     ) -> bool:
         """Check if resource is allowed by actor restrictions."""
         if not self.has_restrictions:
@@ -132,10 +121,8 @@ class ConfigPermissionProcessor:
         if parent:
             table_restrictions = (self.restrictions.get("r", {}) or {}).get(parent, {})
             if child:
-                child_key = (
-                    self.action_obj.normalize_child(child) if self.action_obj else child
-                )
-                if (parent, child_key) in self.restricted_table_keys:
+                table_actions = table_restrictions.get(child, [])
+                if self.action_checks.intersection(table_actions):
                     return True
             else:
                 # Parent query should proceed if any child in this database is allowlisted
@@ -156,9 +143,9 @@ class ConfigPermissionProcessor:
 
     def add_permissions_rule(
         self,
-        parent: str | None,
-        child: str | None,
-        permissions_block: dict | None,
+        parent: Optional[str],
+        child: Optional[str],
+        permissions_block: Optional[dict],
         scope_desc: str,
     ) -> None:
         """Add a rule from a permissions:{action} block."""
@@ -178,8 +165,8 @@ class ConfigPermissionProcessor:
 
     def add_allow_block_rule(
         self,
-        parent: str | None,
-        child: str | None,
+        parent: Optional[str],
+        child: Optional[str],
         allow_block: Any,
         scope_desc: str,
     ) -> None:
@@ -211,8 +198,8 @@ class ConfigPermissionProcessor:
 
     def _add_restriction_gate_denies(
         self,
-        parent: str | None,
-        child: str | None,
+        parent: Optional[str],
+        child: Optional[str],
         is_allowed: bool,
         scope_desc: str,
     ) -> None:
@@ -244,7 +231,7 @@ class ConfigPermissionProcessor:
                     if db_name == parent:
                         self.collector.add(db_name, table_name, False, reason)
 
-    def process(self) -> PermissionSQL | None:
+    def process(self) -> Optional[PermissionSQL]:
         """Process all config rules and return combined PermissionSQL."""
         self._process_root_permissions()
         self._process_databases()
@@ -434,10 +421,10 @@ class ConfigPermissionProcessor:
 
 @hookimpl(specname="permission_resources_sql")
 async def config_permissions_sql(
-    datasette: Datasette,
-    actor: dict | None,
+    datasette: "Datasette",
+    actor: Optional[dict],
     action: str,
-) -> list[PermissionSQL] | None:
+) -> Optional[List[PermissionSQL]]:
     """
     Apply permission rules from datasette.yaml configuration.
 

datasette/default_permissions/defaults.py

@@ -6,7 +6,7 @@ Provides default allow rules for standard view/execute actions.
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -29,28 +29,29 @@ DEFAULT_ALLOW_ACTIONS = frozenset(
 
 @hookimpl(specname="permission_resources_sql")
 async def default_allow_sql_check(
-    datasette: Datasette,
-    actor: dict | None,
+    datasette: "Datasette",
+    actor: Optional[dict],
     action: str,
-) -> PermissionSQL | None:
+) -> Optional[PermissionSQL]:
     """
     Enforce the default_allow_sql setting.
 
     When default_allow_sql is false (the default), execute-sql is denied
     unless explicitly allowed by config or other rules.
     """
-    if action == "execute-sql" and not datasette.setting("default_allow_sql"):
-        return PermissionSQL.deny(reason="default_allow_sql is false")
+    if action == "execute-sql":
+        if not datasette.setting("default_allow_sql"):
+            return PermissionSQL.deny(reason="default_allow_sql is false")
 
     return None
 
 
 @hookimpl(specname="permission_resources_sql")
 async def default_action_permissions_sql(
-    datasette: Datasette,
-    actor: dict | None,
+    datasette: "Datasette",
+    actor: Optional[dict],
     action: str,
-) -> PermissionSQL | None:
+) -> Optional[PermissionSQL]:
     """
     Provide default allow rules for standard view/execute actions.
 
@@ -70,10 +71,10 @@ async def default_action_permissions_sql(
 
 @hookimpl(specname="permission_resources_sql")
 async def default_query_permissions_sql(
-    datasette: Datasette,
-    actor: dict | None,
+    datasette: "Datasette",
+    actor: Optional[dict],
     action: str,
-) -> PermissionSQL | None:
+) -> Optional[PermissionSQL]:
     actor_id = actor.get("id") if isinstance(actor, dict) else None
 
     if action not in {"view-query", "update-query", "delete-query"}:

datasette/default_permissions/helpers.py

@@ -5,7 +5,7 @@ Shared helper utilities for default permission implementations.
 from __future__ import annotations
 
 from dataclasses import dataclass
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, List, Optional, Set
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -13,7 +13,7 @@ if TYPE_CHECKING:
 from datasette.permissions import PermissionSQL
 
 
-def get_action_name_variants(datasette: Datasette, action: str) -> set[str]:
+def get_action_name_variants(datasette: "Datasette", action: str) -> Set[str]:
     """
     Get all name variants for an action (full name and abbreviation).
 
@@ -27,7 +27,7 @@ def get_action_name_variants(datasette: Datasette, action: str) -> set[str]:
     return variants
 
 
-def action_in_list(datasette: Datasette, action: str, action_list: list) -> bool:
+def action_in_list(datasette: "Datasette", action: str, action_list: list) -> bool:
     """Check if an action (or its abbreviation) is in a list."""
     return bool(get_action_name_variants(datasette, action).intersection(action_list))
 
@@ -36,8 +36,8 @@ def action_in_list(datasette: Datasette, action: str, action_list: list) -> bool
 class PermissionRow:
     """A single permission rule row."""
 
-    parent: str | None
-    child: str | None
+    parent: Optional[str]
+    child: Optional[str]
     allow: bool
     reason: str
 
@@ -46,14 +46,14 @@ class PermissionRowCollector:
     """Collects permission rows and converts them to PermissionSQL."""
 
     def __init__(self, prefix: str = "row"):
-        self.rows: list[PermissionRow] = []
+        self.rows: List[PermissionRow] = []
         self.prefix = prefix
 
     def add(
         self,
-        parent: str | None,
-        child: str | None,
-        allow: bool | None,
+        parent: Optional[str],
+        child: Optional[str],
+        allow: Optional[bool],
         reason: str,
         if_not_none: bool = False,
     ) -> None:
@@ -62,7 +62,7 @@ class PermissionRowCollector:
             return
         self.rows.append(PermissionRow(parent, child, allow, reason))
 
-    def to_permission_sql(self) -> PermissionSQL | None:
+    def to_permission_sql(self) -> Optional[PermissionSQL]:
         """Convert collected rows to a PermissionSQL object."""
         if not self.rows:
             return None

datasette/default_permissions/restrictions.py

@@ -8,7 +8,7 @@ contains allowlists of resources the actor can access.
 from __future__ import annotations
 
 from dataclasses import dataclass
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, List, Optional, Set, Tuple
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -23,12 +23,12 @@ from .helpers import action_in_list, get_action_name_variants
 class ActorRestrictions:
     """Parsed actor restrictions from the _r key."""
 
-    global_actions: list[str]  # _r.a - globally allowed actions
+    global_actions: List[str]  # _r.a - globally allowed actions
     database_actions: dict  # _r.d - {db_name: [actions]}
     table_actions: dict  # _r.r - {db_name: {table: [actions]}}
 
     @classmethod
-    def from_actor(cls, actor: dict | None) -> ActorRestrictions | None:
+    def from_actor(cls, actor: Optional[dict]) -> Optional["ActorRestrictions"]:
         """Parse restrictions from actor dict. Returns None if no restrictions."""
         if not actor:
             return None
@@ -44,11 +44,11 @@ class ActorRestrictions:
             table_actions=restrictions.get("r", {}),
         )
 
-    def is_action_globally_allowed(self, datasette: Datasette, action: str) -> bool:
+    def is_action_globally_allowed(self, datasette: "Datasette", action: str) -> bool:
         """Check if action is in the global allowlist."""
         return action_in_list(datasette, action, self.global_actions)
 
-    def get_allowed_databases(self, datasette: Datasette, action: str) -> set[str]:
+    def get_allowed_databases(self, datasette: "Datasette", action: str) -> Set[str]:
         """Get database names where this action is allowed."""
         allowed = set()
         for db_name, db_actions in self.database_actions.items():
@@ -57,8 +57,8 @@ class ActorRestrictions:
         return allowed
 
     def get_allowed_tables(
-        self, datasette: Datasette, action: str
-    ) -> set[tuple[str, str]]:
+        self, datasette: "Datasette", action: str
+    ) -> Set[Tuple[str, str]]:
         """Get (database, table) pairs where this action is allowed."""
         allowed = set()
         for db_name, tables in self.table_actions.items():
@@ -70,10 +70,10 @@ class ActorRestrictions:
 
 @hookimpl(specname="permission_resources_sql")
 async def actor_restrictions_sql(
-    datasette: Datasette,
-    actor: dict | None,
+    datasette: "Datasette",
+    actor: Optional[dict],
     action: str,
-) -> list[PermissionSQL] | None:
+) -> Optional[List[PermissionSQL]]:
     """
     Handle actor restriction-based permission rules.
 
@@ -140,10 +140,10 @@ async def actor_restrictions_sql(
 
 
 def restrictions_allow_action(
-    datasette: Datasette,
+    datasette: "Datasette",
     restrictions: dict,
     action: str,
-    resource: str | tuple[str, str] | None,
+    resource: Optional[str | Tuple[str, str]],
 ) -> bool:
     """
     Check if restrictions allow the requested action on the requested resource.
@@ -185,15 +185,11 @@ def restrictions_allow_action(
     # Check table/resource level
     if resource is not None and not isinstance(resource, str) and len(resource) == 2:
         database, table = resource
-        action_obj = datasette.actions.get(action)
-        normalize = action_obj.normalize_child if action_obj else lambda name: name
-        for table_name, table_allowed in (
-            restrictions.get("r", {}).get(database, {}).items()
-        ):
-            if normalize(table_name) == normalize(table):
-                assert isinstance(table_allowed, list)
-                if to_check.intersection(table_allowed):
-                    return True
+        table_allowed = restrictions.get("r", {}).get(database, {}).get(table)
+        if table_allowed is not None:
+            assert isinstance(table_allowed, list)
+            if to_check.intersection(table_allowed):
+                return True
 
     # This action is not explicitly allowed, so reject it
     return False

datasette/default_permissions/root.py

@@ -6,7 +6,7 @@ Grants full permissions to the root user when --root flag is used.
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -17,9 +17,9 @@ from datasette.permissions import PermissionSQL
 
 @hookimpl(specname="permission_resources_sql")
 async def root_user_permissions_sql(
-    datasette: Datasette,
-    actor: dict | None,
-) -> PermissionSQL | None:
+    datasette: "Datasette",
+    actor: Optional[dict],
+) -> Optional[PermissionSQL]:
     """
     Grant root user full permissions when --root flag is used.
     """

datasette/default_permissions/sqlite_statistics.py

@@ -1,25 +0,0 @@
-"""Default table-access policy for SQLite optimizer statistics."""
-
-import json
-
-from datasette import hookimpl
-from datasette.permissions import PermissionSQL
-
-
-@hookimpl
-def permission_resources_sql(action):
-    if action != "view-table":
-        return None
-    return PermissionSQL(
-        sql="""
-            SELECT database_name AS parent, value AS child, 0 AS allow,
-                'SQLite statistics tables are denied by default' AS reason
-            FROM catalog_databases
-            CROSS JOIN json_each(:sqlite_statistics_names)
-        """,
-        params={
-            "sqlite_statistics_names": json.dumps(
-                ["sqlite_stat1", "sqlite_stat2", "sqlite_stat3", "sqlite_stat4"]
-            )
-        },
-    )

datasette/default_permissions/tokens.py

@@ -7,7 +7,7 @@ to datasette.verify_token() so all registered handlers are tried.
 
 from __future__ import annotations
 
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
@@ -17,13 +17,15 @@ from datasette.tokens import SignedTokenHandler
 
 
 @hookimpl
-def register_token_handler(datasette: Datasette):
+def register_token_handler(datasette: "Datasette"):
     """Register the default signed token handler."""
     return SignedTokenHandler()
 
 
 @hookimpl(specname="actor_from_request")
-async def actor_from_signed_api_token(datasette: Datasette, request) -> dict | None:
+async def actor_from_signed_api_token(
+    datasette: "Datasette", request
+) -> Optional[dict]:
     """
     Authenticate requests using API tokens by delegating to all registered
     token handlers via datasette.verify_token().

datasette/default_table_actions.py

@@ -20,7 +20,7 @@ def table_actions(datasette, actor, database, table, request):
                 "label": "Alter table",
                 "description": "Change columns and primary key for this table.",
                 "attrs": {
-                    "aria-label": f"Alter table {table}",
+                    "aria-label": "Alter table {}".format(table),
                     "data-table-action": "alter-table",
                 },
             }

datasette/events.py

@@ -1,8 +1,7 @@
 from abc import ABC, abstractproperty
 from dataclasses import asdict, dataclass, field
-from datetime import datetime, timezone
-
 from datasette.hookspecs import hookimpl
+from datetime import datetime, timezone
 
 
 @dataclass

datasette/extras.py

@@ -5,8 +5,6 @@ from typing import ClassVar
 
 from asyncinject import Registry
 
-from datasette.utils.asgi import BadRequest
-
 
 def extra_names_from_request(request):
     extra_bits = request.args.getlist("_extra")
@@ -115,17 +113,6 @@ class ExtraRegistry:
             self._allowed_names[key] = names
         return names
 
-    def validate_requested(self, requested, scope):
-        """
-        Raise BadRequest if any requested extra name is not a public extra
-        for this scope. Used by data formats such as .json - HTML pages
-        silently ignore unknown names instead.
-        """
-        allowed = self._allowed_names_for_scope(scope, include_internal=False)
-        unknown = sorted(name for name in requested if name not in allowed)
-        if unknown:
-            raise BadRequest("Unknown _extra: {}".format(", ".join(unknown)))
-
     async def resolve(self, requested, context, scope, include_internal=False):
         allowed_names = self._allowed_names_for_scope(scope, include_internal)
         requested_names = [name for name in requested if name in allowed_names]

datasette/facets.py

@@ -1,13 +1,12 @@
 import json
 import urllib
-
 from datasette import hookimpl
 from datasette.database import QueryInterrupted
 from datasette.utils import (
-    detect_json1,
     escape_sqlite,
     path_with_added_args,
     path_with_removed_args,
+    detect_json1,
     sqlite3,
 )
 
@@ -31,7 +30,7 @@ def load_facet_configs(request, table_config):
             assert (
                 len(facet_config.values()) == 1
             ), "Metadata config dicts should be {type: config}"
-            type, facet_config = next(iter(facet_config.items()))
+            type, facet_config = list(facet_config.items())[0]
             if isinstance(facet_config, str):
                 facet_config = {"simple": facet_config}
         facet_configs.setdefault(type, []).append(
@@ -86,7 +85,7 @@ class Facet:
         self.database = database
         # For foreign key expansion. Can be None for e.g. stored SQL queries:
         self.table = table
-        self.sql = sql or f"select * from {escape_sqlite(table)}"
+        self.sql = sql or f"select * from [{table}]"
         self.params = params or []
         self.table_config = table_config
         # row_count can be None, in which case we calculate it ourselves:
@@ -161,13 +160,18 @@ class ColumnFacet(Facet):
         for column in columns:
             if column in already_enabled:
                 continue
-            suggested_facet_sql = f"""
-                with limited as (select * from ({self.sql}) limit {self.suggest_consider})
-                select {escape_sqlite(column)} as value, count(*) as n from limited
+            suggested_facet_sql = """
+                with limited as (select * from ({sql}) limit {suggest_consider})
+                select {column} as value, count(*) as n from limited
                 where value is not null
                 group by value
-                limit {facet_size + 1}
-            """
+                limit {limit}
+            """.format(
+                column=escape_sqlite(column),
+                sql=self.sql,
+                limit=facet_size + 1,
+                suggest_consider=self.suggest_consider,
+            )
             distinct_values = None
             try:
                 distinct_values = await self.ds.execute(
@@ -263,7 +267,7 @@ class ColumnFacet(Facet):
                 for row in facet_rows:
                     column_qs = column
                     if column.startswith("_"):
-                        column_qs = f"{column}__exact"
+                        column_qs = "{}__exact".format(column)
                     selected = (column_qs, str(row["value"])) in qs_pairs
                     if selected:
                         toggle_path = path_with_removed_args(
@@ -338,12 +342,12 @@ class ArrayFacet(Facet):
                         for v in await self.ds.execute(
                             self.database,
                             (
-                                f"select {escape_sqlite(column)} from ({self.sql}) "
-                                f"where {escape_sqlite(column)} is not null "
-                                f"and {escape_sqlite(column)} != '' "
-                                f"and json_array_length({escape_sqlite(column)}) > 0 "
+                                "select {column} from ({sql}) "
+                                "where {column} is not null "
+                                "and {column} != '' "
+                                "and json_array_length({column}) > 0 "
                                 "limit 100"
-                            ),
+                            ).format(column=escape_sqlite(column), sql=self.sql),
                             self.params,
                             truncate=False,
                             custom_time_limit=self.ds.setting(
@@ -384,14 +388,14 @@ class ArrayFacet(Facet):
             source = source_and_config["source"]
             column = config.get("column") or config["simple"]
             # https://github.com/simonw/datasette/issues/448
-            facet_sql = f"""
-                with inner as ({self.sql}),
+            facet_sql = """
+                with inner as ({sql}),
                 deduped_array_items as (
                     select
                         distinct j.value,
                         inner.*
                     from
-                        json_each([inner].{escape_sqlite(column)}) j
+                        json_each([inner].{col}) j
                         join inner
                 )
                 select
@@ -402,8 +406,12 @@ class ArrayFacet(Facet):
                 group by
                     value
                 order by
-                    count(*) desc, value limit {facet_size + 1}
-            """
+                    count(*) desc, value limit {limit}
+            """.format(
+                col=escape_sqlite(column),
+                sql=self.sql,
+                limit=facet_size + 1,
+            )
             try:
                 facet_rows_results = await self.ds.execute(
                     self.database,

datasette/filters.py

@@ -1,11 +1,8 @@
-import json
-from typing import ClassVar
-
 from datasette import hookimpl
-from datasette.resources import DatabaseResource, TableResource
-from datasette.utils.asgi import BadRequest
+from datasette.resources import DatabaseResource
 from datasette.views.base import DatasetteError
-
+from datasette.utils.asgi import BadRequest
+import json
 from .utils import detect_json1, escape_sqlite, path_with_removed_args
 
 
@@ -51,20 +48,13 @@ def search_filters(request, database, table, datasette):
         human_descriptions = []
         extra_context = {}
 
-        # Figure out which trusted fts_table to use. Query string parameters can
-        # repeat this mapping (for backwards compatibility), but must not select
-        # a different table or primary key.
+        # Figure out which fts_table to use
         table_metadata = await datasette.table_config(database, table)
         db = datasette.get_database(database)
-        fts_table = table_metadata.get("fts_table")
+        fts_table = request.args.get("_fts_table")
+        fts_table = fts_table or table_metadata.get("fts_table")
         fts_table = fts_table or await db.fts_table(table)
-        fts_pk = table_metadata.get("fts_pk", "rowid")
-        requested_fts_table = request.args.get("_fts_table")
-        requested_fts_pk = request.args.get("_fts_pk")
-        if (requested_fts_table and requested_fts_table != fts_table) or (
-            requested_fts_pk and requested_fts_pk != fts_pk
-        ):
-            raise BadRequest("Invalid _fts_table or _fts_pk")
+        fts_pk = request.args.get("_fts_pk", table_metadata.get("fts_pk", "rowid"))
         search_args = {
             key: request.args[key]
             for key in request.args
@@ -82,11 +72,6 @@ def search_filters(request, database, table, datasette):
         extra_context["supports_search"] = bool(fts_table)
 
         if fts_table and search_args:
-            await datasette.ensure_permission(
-                action="view-table",
-                resource=TableResource(database=database, table=fts_table),
-                actor=request.actor,
-            )
             if "_search" in search_args:
                 # Simple ?_search=xxx
                 search = search_args["_search"]
@@ -114,9 +99,9 @@ def search_filters(request, database, table, datasette):
                             fts_table=escape_sqlite(fts_table),
                             search_col=escape_sqlite(search_col),
                             match_clause=(
-                                f":search_{i}"
+                                ":search_{}".format(i)
                                 if search_mode_raw
-                                else f"escape_fts(:search_{i})"
+                                else "escape_fts(:search_{})".format(i)
                             ),
                         )
                     )
@@ -147,18 +132,13 @@ def through_filters(request, database, table, datasette):
                 through_table = through_data["table"]
                 other_column = through_data["column"]
                 value = through_data["value"]
-                await datasette.ensure_permission(
-                    action="view-table",
-                    resource=TableResource(database=database, table=through_table),
-                    actor=request.actor,
-                )
                 db = datasette.get_database(database)
                 outgoing_foreign_keys = await db.foreign_keys_for_table(through_table)
-                fk_to_us = next(
-                    (fk for fk in outgoing_foreign_keys if fk["other_table"] == table),
-                    None,
-                )
-                if fk_to_us is None:
+                try:
+                    fk_to_us = [
+                        fk for fk in outgoing_foreign_keys if fk["other_table"] == table
+                    ][0]
+                except IndexError:
                     raise DatasetteError(
                         "Invalid _through - could not find corresponding foreign key"
                     )
@@ -226,14 +206,10 @@ class TemplatedFilter(Filter):
         if self.numeric and converted.isdigit():
             converted = int(converted)
         if self.no_argument:
-            kwargs = {"c": _quote_sqlite_identifier(column)}
+            kwargs = {"c": column}
             converted = None
         else:
-            kwargs = {
-                "c": _quote_sqlite_identifier(column),
-                "p": f"p{param_counter}",
-                "t": _quote_sqlite_identifier(table),
-            }
+            kwargs = {"c": column, "p": f"p{param_counter}", "t": table}
         return self.sql_template.format(**kwargs), converted
 
     def human_clause(self, column, value):
@@ -247,14 +223,6 @@ class TemplatedFilter(Filter):
             return template.format(c=column, v=value)
 
 
-def _quote_sqlite_identifier(identifier):
-    # Preserve the historic always-quoted SQL generated by TemplatedFilter.
-    escaped = escape_sqlite(identifier)
-    if escaped == identifier:
-        return f'"{identifier}"'
-    return escaped
-
-
 class InFilter(Filter):
     key = "in"
     display = "in"
@@ -296,56 +264,56 @@ class Filters:
             TemplatedFilter(
                 "exact",
                 "=",
-                "{c} = :{p}",
+                '"{c}" = :{p}',
                 lambda c, v: "{c} = {v}" if v.isdigit() else '{c} = "{v}"',
             ),
             TemplatedFilter(
                 "not",
                 "!=",
-                "{c} != :{p}",
+                '"{c}" != :{p}',
                 lambda c, v: "{c} != {v}" if v.isdigit() else '{c} != "{v}"',
             ),
             TemplatedFilter(
                 "contains",
                 "contains",
-                "{c} like :{p}",
+                '"{c}" like :{p}',
                 '{c} contains "{v}"',
                 format="%{}%",
             ),
             TemplatedFilter(
                 "notcontains",
                 "does not contain",
-                "{c} not like :{p}",
+                '"{c}" not like :{p}',
                 '{c} does not contain "{v}"',
                 format="%{}%",
             ),
             TemplatedFilter(
                 "endswith",
                 "ends with",
-                "{c} like :{p}",
+                '"{c}" like :{p}',
                 '{c} ends with "{v}"',
                 format="%{}",
             ),
             TemplatedFilter(
                 "startswith",
                 "starts with",
-                "{c} like :{p}",
+                '"{c}" like :{p}',
                 '{c} starts with "{v}"',
                 format="{}%",
             ),
-            TemplatedFilter("gt", ">", "{c} > :{p}", "{c} > {v}", numeric=True),
+            TemplatedFilter("gt", ">", '"{c}" > :{p}', "{c} > {v}", numeric=True),
             TemplatedFilter(
-                "gte", "\u2265", "{c} >= :{p}", "{c} \u2265 {v}", numeric=True
+                "gte", "\u2265", '"{c}" >= :{p}', "{c} \u2265 {v}", numeric=True
             ),
-            TemplatedFilter("lt", "<", "{c} < :{p}", "{c} < {v}", numeric=True),
+            TemplatedFilter("lt", "<", '"{c}" < :{p}', "{c} < {v}", numeric=True),
             TemplatedFilter(
-                "lte", "\u2264", "{c} <= :{p}", "{c} \u2264 {v}", numeric=True
+                "lte", "\u2264", '"{c}" <= :{p}', "{c} \u2264 {v}", numeric=True
             ),
-            TemplatedFilter("like", "like", "{c} like :{p}", '{c} like "{v}"'),
+            TemplatedFilter("like", "like", '"{c}" like :{p}', '{c} like "{v}"'),
             TemplatedFilter(
-                "notlike", "not like", "{c} not like :{p}", '{c} not like "{v}"'
+                "notlike", "not like", '"{c}" not like :{p}', '{c} not like "{v}"'
             ),
-            TemplatedFilter("glob", "glob", "{c} glob :{p}", '{c} glob "{v}"'),
+            TemplatedFilter("glob", "glob", '"{c}" glob :{p}', '{c} glob "{v}"'),
             InFilter(),
             NotInFilter(),
         ]
@@ -354,13 +322,13 @@ class Filters:
                 TemplatedFilter(
                     "arraycontains",
                     "array contains",
-                    """:{p} in (select value from json_each({t}.{c}))""",
+                    """:{p} in (select value from json_each([{t}].[{c}]))""",
                     '{c} contains "{v}"',
                 ),
                 TemplatedFilter(
                     "arraynotcontains",
                     "array does not contain",
-                    """:{p} not in (select value from json_each({t}.{c}))""",
+                    """:{p} not in (select value from json_each([{t}].[{c}]))""",
                     '{c} does not contain "{v}"',
                 ),
             ]
@@ -368,34 +336,36 @@ class Filters:
             else []
         )
         + [
-            TemplatedFilter("date", "date", "date({c}) = :{p}", '"{c}" is on date {v}'),
             TemplatedFilter(
-                "isnull", "is null", "{c} is null", "{c} is null", no_argument=True
+                "date", "date", 'date("{c}") = :{p}', '"{c}" is on date {v}'
+            ),
+            TemplatedFilter(
+                "isnull", "is null", '"{c}" is null', "{c} is null", no_argument=True
             ),
             TemplatedFilter(
                 "notnull",
                 "is not null",
-                "{c} is not null",
+                '"{c}" is not null',
                 "{c} is not null",
                 no_argument=True,
             ),
             TemplatedFilter(
                 "isblank",
                 "is blank",
-                "({c} is null or {c} = '')",
+                '("{c}" is null or "{c}" = "")',
                 "{c} is blank",
                 no_argument=True,
             ),
             TemplatedFilter(
                 "notblank",
                 "is not blank",
-                "({c} is not null and {c} != '')",
+                '("{c}" is not null and "{c}" != "")',
                 "{c} is not blank",
                 no_argument=True,
             ),
         ]
     )
-    _filters_by_key: ClassVar[dict[str, Filter]] = {f.key: f for f in _filters}
+    _filters_by_key = {f.key: f for f in _filters}
 
     def __init__(self, pairs):
         self.pairs = pairs

datasette/fixtures.py

@@ -1,10 +1,9 @@
+from datasette.utils.sqlite import sqlite3
+from datasette.utils import documented
 import itertools
 import random
 import string
 
-from datasette.utils import documented
-from datasette.utils.sqlite import sqlite3
-
 __all__ = [
     "EXTRA_DATABASE_SQL",
     "TABLES",
@@ -347,7 +346,9 @@ CREATE VIEW searchable_view_configured_by_metadata AS
     + '\nINSERT INTO no_primary_key VALUES ("RENDER_CELL_DEMO", "a202", "b202", "c202");\n'
     + "\n".join(
         [
-            f'INSERT INTO compound_three_primary_keys VALUES ("{a}", "{b}", "{c}", "{content}");'
+            'INSERT INTO compound_three_primary_keys VALUES ("{a}", "{b}", "{c}", "{content}");'.format(
+                a=a, b=b, c=c, content=content
+            )
             for a, b, c, content in generate_compound_rows(1001)
         ]
     )

datasette/forbidden.py

@@ -1,20 +1,9 @@
-from datasette import Response, hookimpl
-
-from .utils import add_cors_headers
+from datasette import hookimpl, Response
 
 
 @hookimpl(trylast=True)
 def forbidden(datasette, request, message):
     async def inner():
-        if (
-            request.path.split("?")[0].endswith(".json")
-            or "application/json" in (request.headers.get("accept") or "")
-            or request.headers.get("content-type") == "application/json"
-        ):
-            headers = {}
-            if datasette.cors:
-                add_cors_headers(headers)
-            return Response.error(message, 403, headers=headers)
         return Response.html(
             await datasette.render_template(
                 "error.html",

datasette/handle_exception.py

@@ -1,21 +1,16 @@
-import traceback
-
-from markupsafe import Markup
-
-from datasette import Response, hookimpl
-
-from .utils import add_cors_headers, error_body
+from datasette import hookimpl, Response
+from .utils import add_cors_headers
 from .utils.asgi import (
     Base400,
 )
 from .views.base import DatasetteError
+from markupsafe import Markup
+import traceback
 
-# Debugger imports are deliberate - they back the "pdb" setting, which drops
-# into a debugger on unhandled exceptions
 try:
-    import ipdb as pdb  # noqa: T100
+    import ipdb as pdb
 except ImportError:
-    import pdb  # noqa: T100
+    import pdb
 
 try:
     import rich
@@ -33,7 +28,6 @@ def handle_exception(datasette, request, exception):
             rich.get_console().print_exception(show_locals=True)
 
         title = None
-        plain_message = None
         if isinstance(exception, Base400):
             status = exception.status
             info = {}
@@ -42,7 +36,6 @@ def handle_exception(datasette, request, exception):
             status = exception.status
             info = exception.error_dict
             message = exception.message
-            plain_message = exception.plain_message
             if exception.message_is_html:
                 message = Markup(message)
             title = exception.title
@@ -52,13 +45,6 @@ def handle_exception(datasette, request, exception):
             message = str(exception)
             traceback.print_exc()
         templates = [f"{status}.html", "error.html"]
-        headers = {}
-        if datasette.cors:
-            add_cors_headers(headers)
-        if request.path.split("?")[0].endswith(".json"):
-            body = dict(info)
-            body.update(error_body(plain_message or message, status))
-            return Response.json(body, status=status, headers=headers)
         info.update(
             {
                 "ok": False,
@@ -67,18 +53,24 @@ def handle_exception(datasette, request, exception):
                 "title": title,
             }
         )
-        environment = datasette.get_jinja_environment(request)
-        template = environment.select_template(templates)
-        return Response.html(
-            await template.render_async(
-                dict(
-                    info,
-                    urls=datasette.urls,
-                    menu_links=list,
-                )
-            ),
-            status=status,
-            headers=headers,
-        )
+        headers = {}
+        if datasette.cors:
+            add_cors_headers(headers)
+        if request.path.split("?")[0].endswith(".json"):
+            return Response.json(info, status=status, headers=headers)
+        else:
+            environment = datasette.get_jinja_environment(request)
+            template = environment.select_template(templates)
+            return Response.html(
+                await template.render_async(
+                    dict(
+                        info,
+                        urls=datasette.urls,
+                        menu_links=lambda: [],
+                    )
+                ),
+                status=status,
+                headers=headers,
+            )
 
     return inner

datasette/hookspecs.py

@@ -1,4 +1,5 @@
-from pluggy import HookimplMarker, HookspecMarker
+from pluggy import HookimplMarker
+from pluggy import HookspecMarker
 
 hookspec = HookspecMarker("datasette")
 hookimpl = HookimplMarker("datasette")

datasette/inspect.py

@@ -1,13 +1,13 @@
 import hashlib
 
 from .utils import (
+    detect_spatialite,
     detect_fts,
     detect_primary_keys,
-    detect_spatialite,
     escape_sqlite,
     get_all_foreign_keys,
-    sqlite3,
     table_columns,
+    sqlite3,
 )
 
 HASH_BLOCK_SIZE = 1024 * 1024
@@ -95,10 +95,10 @@ def inspect_tables(conn, database_metadata):
                 """)
         ]
 
-    for t, table_info in tables.items():
+    for t in tables.keys():
         for hidden_table in hidden_tables:
             if t == hidden_table or t.startswith(hidden_table):
-                table_info["hidden"] = True
+                tables[t]["hidden"] = True
                 continue
 
     return tables

datasette/jump.py

@@ -21,7 +21,7 @@ class JumpSQL:
         search_text: str | None = None,
         display_name: str | None = None,
         item_type: str = "menu",
-    ) -> JumpSQL:
+    ) -> "JumpSQL":
         if search_text is None:
             search_text = " ".join(
                 text for text in (label, display_name, description) if text is not None

datasette/permissions.py

@@ -1,11 +1,7 @@
-import contextvars
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from typing import Any, NamedTuple
-
-_SQLITE_IDENTIFIER_CASE = str.maketrans(
-    "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "abcdefghijklmnopqrstuvwxyz"
-)
+import contextvars
 
 # Context variable to track when permission checks should be skipped
 _skip_permission_checks = contextvars.ContextVar(
@@ -53,15 +49,6 @@ class Resource(ABC):
     # Class-level metadata (subclasses must define these)
     name: str = None  # e.g., "table", "database", "model"
     parent_class: type["Resource"] | None = None  # e.g., DatabaseResource for tables
-    case_insensitive_child: bool = False
-
-    @classmethod
-    def normalize_child(cls, child: str | None) -> str | None:
-        """Return a comparison key without changing the resource's display name."""
-        if cls.case_insensitive_child and child is not None:
-            # Match SQLite NOCASE: fold ASCII only, not Unicode lower/casefold.
-            return child.translate(_SQLITE_IDENTIFIER_CASE)
-        return child
 
     # Instance-level optional extra attributes
     reasons: list[str] | None = None
@@ -85,8 +72,8 @@ class Resource(ABC):
         )
 
     def __repr__(self) -> str:
-        return (
-            f"{self.__class__.__name__}(parent={self.parent!r}, child={self.child!r})"
+        return "{}(parent={!r}, child={!r})".format(
+            self.__class__.__name__, self.parent, self.child
         )
 
     @property
@@ -142,6 +129,7 @@ class Resource(ABC):
 
         Must return two columns: parent, child
         """
+        pass
 
 
 class AllowedResource(NamedTuple):
@@ -159,11 +147,6 @@ class Action:
     resource_class: type[Resource] | None = None
     also_requires: str | None = None  # Optional action name that must also be allowed
 
-    def normalize_child(self, child: str | None) -> str | None:
-        if self.resource_class is None:
-            return child
-        return self.resource_class.normalize_child(child)
-
     @property
     def takes_parent(self) -> bool:
         """

datasette/plugins.py

@@ -1,14 +1,20 @@
 import importlib
-import importlib.metadata as importlib_metadata
-import importlib.resources as importlib_resources
 import os
-import sys
-from pprint import pprint
-
 import pluggy
-
+from pprint import pprint
+import sys
 from . import hookspecs
 
+if sys.version_info >= (3, 9):
+    import importlib.resources as importlib_resources
+else:
+    import importlib_resources
+if sys.version_info >= (3, 10):
+    import importlib.metadata as importlib_metadata
+else:
+    import importlib_metadata
+
+
 DEFAULT_PLUGINS = (
     "datasette.publish.heroku",
     "datasette.publish.cloudrun",
@@ -18,7 +24,6 @@ DEFAULT_PLUGINS = (
     "datasette.actor_auth_cookie",
     "datasette.default_permissions",
     "datasette.default_permissions.tokens",
-    "datasette.default_permissions.sqlite_statistics",
     "datasette.default_actions",
     "datasette.default_column_types",
     "datasette.default_magic_parameters",
@@ -80,7 +85,7 @@ if DATASETTE_LOAD_PLUGINS is not None:
                     # Ensure name can be found in plugin_to_distinfo later:
                     pm._plugin_distinfo.append((mod, distribution))
         except importlib_metadata.PackageNotFoundError:
-            sys.stderr.write(f"Plugin {package_name} could not be found\n")
+            sys.stderr.write("Plugin {} could not be found\n".format(package_name))
 
 
 # Load default plugins

datasette/publish/cloudrun.py

@@ -1,17 +1,15 @@
+from datasette import hookimpl
+import click
 import json
 import os
 import re
 from subprocess import CalledProcessError, check_call, check_output
 
-import click
-
-from datasette import hookimpl
-
-from ..utils import temporary_docker_directory
 from .common import (
     add_common_publish_arguments_and_options,
     fail_if_publish_binary_not_installed,
 )
+from ..utils import temporary_docker_directory
 
 
 @hookimpl
@@ -221,7 +219,7 @@ def publish_subcommand(publish):
 
             check_call(
                 "gcloud builds submit --tag {}{}".format(
-                    image_id, f" --timeout {timeout}" if timeout else ""
+                    image_id, " --timeout {}".format(timeout) if timeout else ""
                 ),
                 shell=True,
             )
@@ -233,7 +231,7 @@ def publish_subcommand(publish):
             ("--min-instances", min_instances),
         ):
             if value is not None:
-                extra_deploy_options.append(f"{option} {value}")
+                extra_deploy_options.append("{} {}".format(option, value))
         check_call(
             "gcloud run deploy --allow-unauthenticated --platform=managed --image {} {}{}".format(
                 image_id,
@@ -260,16 +258,24 @@ def _ensure_artifact_registry(artifact_project, artifact_region, artifact_reposi
         ) from exc
 
     describe_cmd = (
-        f"gcloud artifacts repositories describe {artifact_repository} --project {artifact_project} "
-        f"--location {artifact_region} --quiet"
+        "gcloud artifacts repositories describe {repo} --project {project} "
+        "--location {location} --quiet"
+    ).format(
+        repo=artifact_repository,
+        project=artifact_project,
+        location=artifact_region,
     )
     try:
         check_call(describe_cmd, shell=True)
         return
     except CalledProcessError:
         create_cmd = (
-            f"gcloud artifacts repositories create {artifact_repository} --repository-format=docker "
-            f'--location {artifact_region} --project {artifact_project} --description "Datasette Cloud Run images" --quiet'
+            "gcloud artifacts repositories create {repo} --repository-format=docker "
+            '--location {location} --project {project} --description "Datasette Cloud Run images" --quiet'
+        ).format(
+            repo=artifact_repository,
+            location=artifact_region,
+            project=artifact_project,
         )
         try:
             check_call(create_cmd, shell=True)

datasette/publish/common.py

@@ -1,11 +1,9 @@
+from ..utils import StaticMount
+import click
 import os
 import shutil
 import sys
 
-import click
-
-from ..utils import StaticMount
-
 
 def add_common_publish_arguments_and_options(subcommand):
     for decorator in reversed(
@@ -78,7 +76,9 @@ def fail_if_publish_binary_not_installed(binary, publish_target, install_link):
     """Exit (with error message) if ``binary` isn't installed"""
     if not shutil.which(binary):
         click.secho(
-            f"Publishing to {publish_target} requires {binary} to be installed and configured",
+            "Publishing to {publish_target} requires {binary} to be installed and configured".format(
+                publish_target=publish_target, binary=binary
+            ),
             bg="red",
             fg="white",
             bold=True,

datasette/publish/heroku.py

@@ -1,21 +1,19 @@
+from contextlib import contextmanager
+from datasette import hookimpl
+import click
 import json
 import os
 import pathlib
 import shlex
 import shutil
-import tempfile
-from contextlib import contextmanager
 from subprocess import call, check_output
-
-import click
-
-from datasette import hookimpl
-from datasette.utils import link_or_copy, link_or_copy_directory, parse_metadata
+import tempfile
 
 from .common import (
     add_common_publish_arguments_and_options,
     fail_if_publish_binary_not_installed,
 )
+from datasette.utils import link_or_copy, link_or_copy_directory, parse_metadata
 
 
 @hookimpl
@@ -236,7 +234,7 @@ def temporary_heroku_directory(
             extras.extend(["--static", f"{mount_point}:{mount_point}"])
 
         quoted_files = " ".join(
-            [f"-i {shlex.quote(file_name)}" for file_name in file_names]
+            ["-i {}".format(shlex.quote(file_name)) for file_name in file_names]
         )
         procfile_cmd = "web: datasette serve --host 0.0.0.0 {quoted_files} --cors --port $PORT --inspect-file inspect-data.json {extras}".format(
             quoted_files=quoted_files, extras=" ".join(extras)

datasette/renderer.py

@@ -1,13 +1,11 @@
 import json
-
 from datasette.extras import extra_names_from_request
 from datasette.utils import (
-    CustomJSONEncoder,
-    error_body,
-    path_from_row_pks,
-    remove_infinites,
-    sqlite3,
     value_as_boolean,
+    remove_infinites,
+    CustomJSONEncoder,
+    path_from_row_pks,
+    sqlite3,
 )
 from datasette.utils.asgi import Response
 
@@ -54,7 +52,8 @@ def json_renderer(request, args, data, error, truncated=None):
     if error:
         shape = "objects"
         status_code = 400
-        data.update(error_body(error, status_code))
+        data["error"] = error
+        data["ok"] = False
 
     if truncated is not None:
         data["truncated"] = truncated
@@ -88,8 +87,7 @@ def json_renderer(request, args, data, error, truncated=None):
                         object_rows[pk_string] = row
                     data = object_rows
             if shape_error:
-                status_code = 400
-                data = error_body(shape_error, status_code)
+                data = {"ok": False, "error": shape_error}
         elif shape == "array":
             data = data["rows"]
 
@@ -102,7 +100,12 @@ def json_renderer(request, args, data, error, truncated=None):
             data["rows"] = [list(row.values()) for row in data["rows"]]
     else:
         status_code = 400
-        data = error_body(f"Invalid _shape: {shape}", status_code)
+        data = {
+            "ok": False,
+            "error": f"Invalid _shape: {shape}",
+            "status": 400,
+            "title": None,
+        }
 
     # Don't include "columns" in output
     # https://github.com/simonw/datasette/issues/2136

datasette/resources.py

@@ -25,7 +25,6 @@ class TableResource(Resource):
 
     name = "table"
     parent_class = DatabaseResource
-    case_insensitive_child = True
 
     def __init__(self, database: str, table: str):
         super().__init__(parent=database, child=table)

datasette/static/column-chooser.js

@@ -41,76 +41,22 @@ class ColumnChooser extends HTMLElement {
 
         * { box-sizing: border-box; margin: 0; padding: 0; }
 
-        dialog {
-          border: none;
-          border-radius: var(--modal-border-radius, 0.75rem);
-          padding: 0;
-          margin: auto;
-          width: 100%;
-          max-width: 420px;
-          max-height: min(640px, calc(100vh - 32px));
-          box-shadow: var(--modal-shadow, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));
-          animation: slideIn var(--modal-animation-duration, 0.2s) ease-out;
-          overflow: hidden;
-          font-family: system-ui, -apple-system, sans-serif;
-          background: var(--card);
+        /* Frame styles come from the shared <datasette-modal> component */
+        datasette-modal {
+          --datasette-modal-width: min(420px, 95vw);
+          --datasette-modal-max-height: min(640px, calc(100vh - 32px));
+        }
+
+        datasette-modal > dialog {
           -webkit-user-select: none;
           -webkit-touch-callout: none;
           -webkit-tap-highlight-color: transparent;
         }
 
-        dialog[open] {
-          display: flex;
-          flex-direction: column;
+        datasette-modal > dialog[open] {
           height: min(640px, calc(100vh - 32px));
         }
 
-        dialog::backdrop {
-          background: var(--modal-backdrop-bg, rgba(0, 0, 0, 0.5));
-          backdrop-filter: var(--modal-backdrop-blur, blur(4px));
-          -webkit-backdrop-filter: var(--modal-backdrop-blur, blur(4px));
-          animation: fadeIn var(--modal-animation-duration, 0.2s) ease-out;
-        }
-
-        @keyframes slideIn {
-          from {
-            opacity: 0;
-            transform: translateY(-20px) scale(0.95);
-          }
-          to {
-            opacity: 1;
-            transform: translateY(0) scale(1);
-          }
-        }
-
-        @keyframes fadeIn {
-          from { opacity: 0; }
-          to { opacity: 1; }
-        }
-
-        .modal-header {
-          padding: 20px 24px 16px;
-          border-bottom: 1px solid var(--rule);
-          display: flex;
-          align-items: center;
-          justify-content: space-between;
-          flex-shrink: 0;
-        }
-
-        .modal-title {
-          font-size: 1rem;
-          font-weight: 600;
-        }
-
-        .modal-meta {
-          font-family: ui-monospace, monospace;
-          font-size: 0.7rem;
-          color: var(--muted);
-          background: var(--paper);
-          padding: 3px 9px;
-          border-radius: 20px;
-        }
-
         .list-toolbar {
           padding: 6px 24px;
           border-bottom: 1px solid var(--rule);
@@ -299,48 +245,6 @@ class ColumnChooser extends HTMLElement {
           50% { transform: translateX(-50%) scale(1.5); opacity: 0.07; }
         }
 
-        .modal-footer {
-          padding: 14px 20px;
-          border-top: 1px solid var(--rule);
-          display: flex;
-          align-items: center;
-          gap: 10px;
-          flex-shrink: 0;
-          background: var(--paper);
-        }
-
-        .footer-info {
-          flex: 1;
-          font-family: ui-monospace, monospace;
-          font-size: 0.68rem;
-          color: var(--muted);
-        }
-
-        .btn {
-          border: none;
-          border-radius: 5px;
-          padding: 9px 20px;
-          font-size: 0.85rem;
-          font-weight: 500;
-          cursor: pointer;
-          touch-action: manipulation;
-          font-family: inherit;
-          transition: background 0.12s;
-        }
-
-        .btn-primary {
-          background: var(--accent);
-          color: white;
-        }
-        .btn-primary:hover { background: #1448c0; }
-
-        .btn-ghost {
-          background: transparent;
-          color: var(--muted);
-          border: 1px solid var(--rule);
-        }
-        .btn-ghost:hover { background: var(--rule); color: var(--ink); }
-
         .list-wrap::-webkit-scrollbar { width: 5px; }
         .list-wrap::-webkit-scrollbar-track { background: transparent; }
         .list-wrap::-webkit-scrollbar-thumb { background: var(--rule); border-radius: 99px; }
@@ -348,11 +252,7 @@ class ColumnChooser extends HTMLElement {
         input, textarea { -webkit-user-select: auto; user-select: auto; }
       </style>
 
-      <dialog aria-labelledby="modalTitle">
-          <div class="modal-header">
-            <span class="modal-title" id="modalTitle">Choose columns</span>
-            <span class="modal-meta" id="selectedCount"></span>
-          </div>
+      <datasette-modal modal-title="Choose columns">
           <div class="list-toolbar">
             <button id="selectAllBtn">Select all</button>
             <button id="deselectAllBtn">Deselect all</button>
@@ -367,11 +267,11 @@ class ColumnChooser extends HTMLElement {
             <button class="btn btn-ghost" id="cancelBtn">Cancel</button>
             <button class="btn btn-primary" id="applyBtn">Apply</button>
           </div>
-      </dialog>
+      </datasette-modal>
     `;
 
     // DOM refs
-    this._dialog = this.shadowRoot.querySelector("dialog");
+    this._modal = this.shadowRoot.querySelector("datasette-modal");
     this._listWrap = this.shadowRoot.getElementById("listWrap");
     this._dragList = this.shadowRoot.getElementById("dragList");
     this._pulseTop = this.shadowRoot.getElementById("pulseTop");
@@ -380,20 +280,16 @@ class ColumnChooser extends HTMLElement {
     this._deselectAllBtn = this.shadowRoot.getElementById("deselectAllBtn");
     this._cancelBtn = this.shadowRoot.getElementById("cancelBtn");
     this._applyBtn = this.shadowRoot.getElementById("applyBtn");
-    this._countEl = this.shadowRoot.getElementById("selectedCount");
     this._footerEl = this.shadowRoot.getElementById("footerInfo");
 
-    // Event listeners
+    // Event listeners - dismissal (backdrop click, Escape) is handled
+    // by the <datasette-modal> component
     this._selectAllBtn.addEventListener("click", () => this._selectAll());
     this._deselectAllBtn.addEventListener("click", () => this._deselectAll());
     this._cancelBtn.addEventListener("click", () => this._close());
     this._applyBtn.addEventListener("click", () => this._apply());
-    this._dialog.addEventListener("click", (e) => {
-      if (e.target === this._dialog) this._close();
-    });
-    this._dialog.addEventListener("cancel", (e) => {
-      e.preventDefault();
-      this._close();
+    this._modal.addEventListener("datasette-modal-close", () => {
+      this._restoreSavedState();
     });
   }
 
@@ -405,6 +301,10 @@ class ColumnChooser extends HTMLElement {
    * @param {function(string[]): void} opts.onApply - Called with the selected columns in order when Apply is clicked.
    */
   open({ columns, selected = [], onApply }) {
+    if (!this._modal.dialog) {
+      // datasette-modal.js is missing or <dialog> is unsupported
+      return;
+    }
     this._items = [...columns];
     this._checked = new Set(selected);
     this._onApply = onApply || null;
@@ -414,17 +314,20 @@ class ColumnChooser extends HTMLElement {
     this._savedChecked = new Set(this._checked);
 
     this._render();
-    this._dialog.showModal();
+    this._modal.showModal();
   }
 
   // ── Internal methods ──
 
-  _close() {
+  _restoreSavedState() {
     this._items = this._savedItems ? [...this._savedItems] : this._items;
     this._checked = this._savedChecked
       ? new Set(this._savedChecked)
       : this._checked;
-    this._dialog.close();
+  }
+
+  _close() {
+    this._modal.close();
   }
 
   _selectAll() {
@@ -445,7 +348,7 @@ class ColumnChooser extends HTMLElement {
 
   _apply() {
     const selected = this._items.filter((col) => this._checked.has(col));
-    this._dialog.close();
+    this._modal.close();
     if (this._onApply) {
       this._onApply(selected);
     }
@@ -472,13 +375,11 @@ class ColumnChooser extends HTMLElement {
           <span class="drag-item-check">
             <input type="checkbox" ${this._checked.has(col) ? "checked" : ""}>
           </span>
-          <span class="drag-item-label"></span>
+          <span class="drag-item-label">${col}</span>
         </label>
         <div class="drop-indicator"></div>
       `;
 
-      li.querySelector(".drag-item-label").textContent = col;
-
       li.querySelector("input").addEventListener("change", (e) => {
         e.target.checked ? this._checked.add(col) : this._checked.delete(col);
         this._updateCounts();
@@ -495,7 +396,7 @@ class ColumnChooser extends HTMLElement {
 
   _updateCounts() {
     const n = this._checked.size;
-    this._countEl.textContent = `${n} of ${this._items.length} selected`;
+    this._modal.setMeta(`${n} of ${this._items.length} selected`);
     this._footerEl.textContent = `${this._items.length} columns`;
   }
 

datasette/static/datasette-manager.js

@@ -215,6 +215,21 @@ const datasetteManager = {
     });
   },
 
+  /**
+   * Create a <datasette-modal> element, append it to the document and
+   * return it. A convenience wrapper for window.DatasetteModal.create() -
+   * see the "Modal dialogs" section of the JavaScript plugins
+   * documentation for the supported options.
+   *
+   * Returns null in browsers without <dialog> support.
+   */
+  createModal: (options) => {
+    if (!window.DatasetteModal || !window.DatasetteModal.supported) {
+      return null;
+    }
+    return window.DatasetteModal.create(options);
+  },
+
   /** Selectors for document (DOM) elements. Store identifier instead of immediate references in case they haven't loaded when Manager starts. */
   selectors: DOM_SELECTORS,
 

datasette/static/datasette-modal.js

@@ -0,0 +1,584 @@
+/**
+ * <datasette-modal> is Datasette's shared modal dialog Web Component.
+ *
+ * This element, and the DatasetteModal class exposed as
+ * window.DatasetteModal, are part of Datasette's public JavaScript API
+ * for plugins. See the "Modal dialogs" section of the JavaScript
+ * plugins documentation.
+ *
+ * The component wraps a native <dialog> element and provides:
+ *
+ * - The standard Datasette modal frame: sizing, rounded corners,
+ *   backdrop, animations, and optional .modal-header scaffolding
+ * - Close-on-backdrop-click and Escape key handling
+ * - Declarative cancel buttons: clicking any element inside the modal
+ *   with a `data-modal-cancel` attribute calls requestClose("cancel")
+ * - A `busy` property that blocks user-initiated dismissal while an
+ *   operation is in flight
+ * - A `closeGuard` hook for "discard unsaved changes?" style prompts
+ * - Focus restoration to the triggering element on close
+ * - `datasette-modal-open` and `datasette-modal-close` events
+ *
+ * Markup structure once connected:
+ *
+ *   <datasette-modal modal-title="Example">
+ *     <dialog id class aria-labelledby>
+ *       <div class="modal-header">
+ *         <span class="modal-title">Example</span>
+ *         <span class="modal-meta" hidden></span>
+ *       </div>
+ *       ...consumer content, typically ending in a .modal-footer...
+ *     </dialog>
+ *   </datasette-modal>
+ *
+ * The component uses light DOM so page CSS and plugins can style the
+ * dialog contents. The shared frame styles are distributed via a
+ * stylesheet that the component adopts into whatever document or
+ * shadow root it is connected to, which means the component also
+ * works inside the shadow DOM of other web components.
+ */
+(function () {
+  var FRAME_CSS = `
+datasette-modal {
+    display: contents;
+}
+
+@keyframes datasette-modal-slide-in {
+    from {
+        opacity: 0;
+        transform: translateY(-20px) scale(0.95);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0) scale(1);
+    }
+}
+
+@keyframes datasette-modal-fade-in {
+    from { opacity: 0; }
+    to { opacity: 1; }
+}
+
+datasette-modal > dialog {
+    --ink: #0f0f0f;
+    --paper: #eef6ff;
+    --muted: #6b6b6b;
+    --rule: #d8e6f5;
+    --accent: #1a56db;
+    --card: #ffffff;
+    border: none;
+    border-radius: var(--datasette-modal-border-radius, var(--modal-border-radius, 0.75rem));
+    padding: 0;
+    margin: auto;
+    width: var(--datasette-modal-width, min(520px, calc(100vw - 32px)));
+    max-width: 95vw;
+    max-height: var(--datasette-modal-max-height, min(720px, calc(100vh - 32px)));
+    box-shadow: var(--modal-shadow, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));
+    animation: datasette-modal-slide-in var(--modal-animation-duration, 0.2s) ease-out;
+    overflow: hidden;
+    font-family: system-ui, -apple-system, sans-serif;
+    background: var(--card);
+    color: var(--ink);
+}
+
+datasette-modal > dialog[open] {
+    display: flex;
+    flex-direction: column;
+}
+
+datasette-modal > dialog::backdrop {
+    background: var(--modal-backdrop-bg, rgba(0, 0, 0, 0.5));
+    backdrop-filter: var(--modal-backdrop-blur, blur(4px));
+    -webkit-backdrop-filter: var(--modal-backdrop-blur, blur(4px));
+    animation: datasette-modal-fade-in var(--modal-animation-duration, 0.2s) ease-out;
+}
+
+datasette-modal .modal-header {
+    padding: 20px 24px 14px;
+    border-bottom: 1px solid var(--rule);
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+    flex-shrink: 0;
+    min-width: 0;
+}
+
+datasette-modal .modal-title {
+    display: flex;
+    align-items: center;
+    gap: 0.35rem;
+    min-width: 0;
+    max-width: 100%;
+    font-size: 1rem;
+    font-weight: 600;
+    color: var(--ink);
+}
+
+datasette-modal .modal-meta {
+    font-family: ui-monospace, monospace;
+    font-size: 0.7rem;
+    color: var(--muted);
+    background: var(--paper);
+    padding: 3px 9px;
+    border-radius: 20px;
+    flex-shrink: 0;
+}
+
+datasette-modal .modal-meta[hidden] {
+    display: none;
+}
+
+datasette-modal .modal-footer {
+    padding: 14px 20px;
+    border-top: 1px solid var(--rule);
+    display: flex;
+    align-items: center;
+    justify-content: flex-end;
+    gap: 10px;
+    flex-shrink: 0;
+    background: var(--paper);
+}
+
+datasette-modal .modal-footer [hidden] {
+    display: none;
+}
+
+datasette-modal .footer-info {
+    flex: 1;
+    font-family: ui-monospace, monospace;
+    font-size: 0.68rem;
+    color: var(--muted);
+}
+
+datasette-modal .btn {
+    border: none;
+    border-radius: 5px;
+    padding: 9px 20px;
+    font-size: 0.85rem;
+    font-weight: 500;
+    cursor: pointer;
+    touch-action: manipulation;
+    font-family: inherit;
+    transition: background 0.12s;
+}
+
+datasette-modal .btn-ghost {
+    background: transparent;
+    color: var(--muted);
+    border: 1px solid var(--rule);
+}
+
+datasette-modal .btn-ghost:hover {
+    background: var(--rule);
+    color: var(--ink);
+}
+
+datasette-modal .btn-primary {
+    background: var(--accent);
+    color: #fff;
+}
+
+datasette-modal .btn-primary:hover {
+    background: #1949b8;
+}
+
+datasette-modal .btn-primary:disabled,
+datasette-modal .btn-primary:disabled:hover {
+    background: #a0aec0;
+    color: #fff;
+}
+
+datasette-modal .btn-danger {
+    background: #b91c1c;
+    color: #fff;
+    margin-right: auto;
+}
+
+datasette-modal .btn-danger:hover {
+    background: #991b1b;
+}
+
+datasette-modal .btn-danger:disabled,
+datasette-modal .btn-danger:disabled:hover {
+    background: #d98c8c;
+    color: #fff;
+}
+
+datasette-modal .btn:disabled {
+    opacity: 0.55;
+    cursor: not-allowed;
+}
+
+@media (max-width: 640px) {
+    datasette-modal > dialog {
+        width: var(--datasette-modal-small-screen-width, 95vw);
+        max-height: var(--datasette-modal-small-screen-max-height, 85vh);
+        border-radius: 0.5rem;
+    }
+
+    datasette-modal .modal-header {
+        padding-left: 18px;
+        padding-right: 18px;
+    }
+
+    datasette-modal .modal-footer {
+        padding-left: 18px;
+        padding-right: 18px;
+    }
+}
+`;
+
+  var sharedFrameSheet = null;
+  var styledRoots = new WeakSet();
+  var titleIdCounter = 0;
+
+  /* Make the shared frame styles available in a document or shadow root */
+  function adoptFrameStyles(rootNode) {
+    if (!rootNode || styledRoots.has(rootNode)) {
+      return;
+    }
+    styledRoots.add(rootNode);
+    if (
+      typeof CSSStyleSheet !== "undefined" &&
+      "adoptedStyleSheets" in rootNode
+    ) {
+      try {
+        if (!sharedFrameSheet) {
+          sharedFrameSheet = new CSSStyleSheet();
+          sharedFrameSheet.replaceSync(FRAME_CSS);
+        }
+        rootNode.adoptedStyleSheets =
+          rootNode.adoptedStyleSheets.concat(sharedFrameSheet);
+        return;
+      } catch (_error) {
+        // Fall back to a <style> element below
+      }
+    }
+    var style = document.createElement("style");
+    style.setAttribute("data-datasette-modal", "");
+    style.textContent = FRAME_CSS;
+    (rootNode.head || rootNode).appendChild(style);
+  }
+
+  class DatasetteModal extends HTMLElement {
+    static get observedAttributes() {
+      return ["modal-title", "modal-meta"];
+    }
+
+    /** True if the browser supports everything the component needs */
+    static get supported() {
+      return typeof window.HTMLDialogElement !== "undefined";
+    }
+
+    /**
+     * Create a <datasette-modal>, append it to the document (or
+     * options.parent) and return it. Returns null in browsers without
+     * <dialog> support.
+     *
+     * Options:
+     * - id: id attribute for the inner <dialog>
+     * - className: class attribute for the inner <dialog>
+     * - title: text for the standard header title (omit for no header)
+     * - meta: text for the header meta chip
+     * - titleId: id for the title element (defaults to "<id>-title")
+     * - labelledBy: aria-labelledby override for the dialog
+     * - describedBy: aria-describedby for the dialog
+     * - content: HTML string or DOM node placed after the header
+     * - parent: element to append to (defaults to document.body)
+     */
+    static create(options) {
+      options = options || {};
+      if (!DatasetteModal.supported) {
+        return null;
+      }
+      var modal = document.createElement("datasette-modal");
+      if (options.id) {
+        modal.setAttribute("dialog-id", options.id);
+      }
+      if (options.className) {
+        modal.setAttribute("dialog-class", options.className);
+      }
+      if (options.title !== undefined && options.title !== null) {
+        modal.setAttribute("modal-title", options.title);
+      }
+      if (options.meta !== undefined && options.meta !== null) {
+        modal.setAttribute("modal-meta", options.meta);
+      }
+      if (options.titleId) {
+        modal.setAttribute("title-id", options.titleId);
+      }
+      if (options.labelledBy) {
+        modal.setAttribute("labelled-by", options.labelledBy);
+      }
+      if (options.describedBy) {
+        modal.setAttribute("described-by", options.describedBy);
+      }
+      if (options.content !== undefined && options.content !== null) {
+        if (typeof options.content === "string") {
+          modal.innerHTML = options.content;
+        } else {
+          modal.appendChild(options.content);
+        }
+      }
+      (options.parent || document.body).appendChild(modal);
+      return modal;
+    }
+
+    constructor() {
+      super();
+      this._dialog = null;
+      this._titleElement = null;
+      this._metaElement = null;
+      this._trigger = null;
+      this._restoreFocus = true;
+      this._busy = false;
+
+      /**
+       * Optional function called with a reason string ("escape",
+       * "backdrop" or the reason passed to requestClose()) when the
+       * user tries to dismiss the modal. Return false to keep the
+       * modal open. Not called for direct close() calls.
+       */
+      this.closeGuard = null;
+    }
+
+    connectedCallback() {
+      adoptFrameStyles(this.getRootNode());
+      this._build();
+    }
+
+    attributeChangedCallback(name) {
+      if (!this._dialog) {
+        return;
+      }
+      if (name === "modal-title" && this._titleElement) {
+        this._titleElement.textContent = this.getAttribute("modal-title") || "";
+      }
+      if (name === "modal-meta" && this._metaElement) {
+        this._syncMeta();
+      }
+    }
+
+    /** The underlying HTMLDialogElement, or null if unsupported */
+    get dialog() {
+      return this._dialog;
+    }
+
+    /** True if the modal is currently open */
+    get open() {
+      return !!(this._dialog && this._dialog.open);
+    }
+
+    /** The .modal-title element, or null if there is no header */
+    get titleElement() {
+      return this._titleElement;
+    }
+
+    /** The .modal-meta element, or null if there is no header */
+    get metaElement() {
+      return this._metaElement;
+    }
+
+    /**
+     * While true, Escape, backdrop clicks and requestClose() will not
+     * close the modal. Use this while a save or delete is in flight.
+     */
+    get busy() {
+      return this._busy;
+    }
+
+    set busy(value) {
+      this._busy = !!value;
+      this.toggleAttribute("busy", this._busy);
+    }
+
+    /** Set the header title text */
+    setTitle(text) {
+      this.setAttribute("modal-title", text == null ? "" : text);
+    }
+
+    /** Set the header meta chip text - blank hides the chip */
+    setMeta(text) {
+      this.setAttribute("modal-meta", text == null ? "" : text);
+    }
+
+    /**
+     * Open the modal. Records options.trigger (defaults to the
+     * currently focused element) so focus can be restored on close.
+     */
+    showModal(options) {
+      options = options || {};
+      if (!this.isConnected) {
+        document.body.appendChild(this);
+      }
+      if (!this._dialog) {
+        return;
+      }
+      if (options.trigger !== undefined) {
+        this._trigger = options.trigger;
+      } else if (!this._dialog.open) {
+        var active = document.activeElement;
+        this._trigger = active && active !== document.body ? active : null;
+      }
+      this._restoreFocus = true;
+      if (!this._dialog.open) {
+        this._dialog.showModal();
+        this.dispatchEvent(
+          new CustomEvent("datasette-modal-open", {
+            bubbles: true,
+            composed: true,
+          }),
+        );
+      }
+    }
+
+    /**
+     * Close the modal unconditionally, skipping busy and closeGuard.
+     * Pass {restoreFocus: false} to leave focus where it is.
+     */
+    close(options) {
+      options = options || {};
+      if (!this._dialog) {
+        return;
+      }
+      this._restoreFocus = options.restoreFocus !== false;
+      if (this._dialog.open) {
+        this._dialog.close();
+      }
+    }
+
+    /**
+     * Ask the modal to close on the user's behalf. Does nothing while
+     * busy, and consults closeGuard if one is set. Returns true if the
+     * modal was closed.
+     */
+    requestClose(reason) {
+      if (!this._dialog || !this._dialog.open || this._busy) {
+        return false;
+      }
+      if (
+        typeof this.closeGuard === "function" &&
+        !this.closeGuard(reason || "dismiss")
+      ) {
+        return false;
+      }
+      this.close();
+      return true;
+    }
+
+    _build() {
+      if (this._dialog || !DatasetteModal.supported) {
+        return;
+      }
+
+      var dialog = document.createElement("dialog");
+      var dialogId = this.getAttribute("dialog-id");
+      if (dialogId) {
+        dialog.id = dialogId;
+      }
+      var dialogClass = this.getAttribute("dialog-class");
+      if (dialogClass) {
+        dialog.className = dialogClass;
+      }
+
+      // Move any existing light DOM content into the dialog
+      var content = document.createDocumentFragment();
+      while (this.firstChild) {
+        content.appendChild(this.firstChild);
+      }
+
+      if (this.hasAttribute("modal-title")) {
+        var header = document.createElement("div");
+        header.className = "modal-header";
+
+        this._titleElement = document.createElement("span");
+        this._titleElement.className = "modal-title";
+        this._titleElement.id =
+          this.getAttribute("title-id") ||
+          (dialogId
+            ? dialogId + "-title"
+            : "datasette-modal-title-" + ++titleIdCounter);
+        this._titleElement.textContent = this.getAttribute("modal-title");
+
+        this._metaElement = document.createElement("span");
+        this._metaElement.className = "modal-meta";
+
+        header.appendChild(this._titleElement);
+        header.appendChild(this._metaElement);
+        dialog.appendChild(header);
+        this._syncMeta();
+      }
+
+      var labelledBy =
+        this.getAttribute("labelled-by") ||
+        (this._titleElement ? this._titleElement.id : null);
+      if (labelledBy) {
+        dialog.setAttribute("aria-labelledby", labelledBy);
+      }
+      var describedBy = this.getAttribute("described-by");
+      if (describedBy) {
+        dialog.setAttribute("aria-describedby", describedBy);
+      }
+
+      dialog.appendChild(content);
+      this.appendChild(dialog);
+      this._dialog = dialog;
+
+      dialog.addEventListener("click", (ev) => {
+        if (ev.target === dialog) {
+          this.requestClose("backdrop");
+          return;
+        }
+        // Declarative cancel buttons: any element inside the modal
+        // with a data-modal-cancel attribute requests a close
+        var cancelTrigger =
+          ev.target.closest && ev.target.closest("[data-modal-cancel]");
+        if (cancelTrigger && dialog.contains(cancelTrigger)) {
+          this.requestClose("cancel");
+        }
+      });
+
+      dialog.addEventListener("keydown", (ev) => {
+        if (ev.key !== "Escape") {
+          return;
+        }
+        ev.preventDefault();
+        this.requestClose("escape");
+      });
+
+      dialog.addEventListener("cancel", (ev) => {
+        ev.preventDefault();
+        this.requestClose("escape");
+      });
+
+      dialog.addEventListener("close", () => {
+        var restoreFocus = this._restoreFocus;
+        this._restoreFocus = true;
+        if (
+          restoreFocus &&
+          this._trigger &&
+          this._trigger.isConnected &&
+          typeof this._trigger.focus === "function"
+        ) {
+          this._trigger.focus();
+        }
+        this.dispatchEvent(
+          new CustomEvent("datasette-modal-close", {
+            bubbles: true,
+            composed: true,
+          }),
+        );
+      });
+    }
+
+    _syncMeta() {
+      var meta = this.getAttribute("modal-meta") || "";
+      this._metaElement.textContent = meta;
+      this._metaElement.hidden = meta === "";
+    }
+  }
+
+  customElements.define("datasette-modal", DatasetteModal);
+  window.DatasetteModal = DatasetteModal;
+})();

datasette/static/json-format-highlight-1.0.1.js

@@ -0,0 +1,56 @@
+/*
+https://github.com/luyilin/json-format-highlight
+From https://unpkg.com/json-format-highlight@1.0.1/dist/json-format-highlight.js
+MIT Licensed
+*/
+(function (global, factory) {
+  typeof exports === "object" && typeof module !== "undefined"
+    ? (module.exports = factory())
+    : typeof define === "function" && define.amd
+      ? define(factory)
+      : (global.jsonFormatHighlight = factory());
+})(this, function () {
+  "use strict";
+
+  var defaultColors = {
+    keyColor: "dimgray",
+    numberColor: "lightskyblue",
+    stringColor: "lightcoral",
+    trueColor: "lightseagreen",
+    falseColor: "#f66578",
+    nullColor: "cornflowerblue",
+  };
+
+  function index(json, colorOptions) {
+    if (colorOptions === void 0) colorOptions = {};
+
+    if (!json) {
+      return;
+    }
+    if (typeof json !== "string") {
+      json = JSON.stringify(json, null, 2);
+    }
+    var colors = Object.assign({}, defaultColors, colorOptions);
+    json = json.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">");
+    return json.replace(
+      /("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+]?\d+)?)/g,
+      function (match) {
+        var color = colors.numberColor;
+        if (/^"/.test(match)) {
+          color = /:$/.test(match) ? colors.keyColor : colors.stringColor;
+        } else {
+          color = /true/.test(match)
+            ? colors.trueColor
+            : /false/.test(match)
+              ? colors.falseColor
+              : /null/.test(match)
+                ? colors.nullColor
+                : color;
+        }
+        return '<span style="color: ' + color + '">' + match + "</span>";
+      },
+    );
+  }
+
+  return index;
+});

datasette/static/mobile-column-actions.js

@@ -54,7 +54,8 @@ function initMobileColumnActions(manager) {
 
   if (
     !window.URLSearchParams ||
-    !window.HTMLDialogElement ||
+    !window.DatasetteModal ||
+    !window.DatasetteModal.supported ||
     !manager.columnActions
   ) {
     triggerButton.style.display = "none";
@@ -66,32 +67,28 @@ function initMobileColumnActions(manager) {
     return;
   }
 
-  var dialog = document.createElement("dialog");
-  dialog.className = "mobile-column-actions-dialog";
-  dialog.id = MOBILE_COLUMN_DIALOG_ID;
-  dialog.setAttribute("aria-labelledby", MOBILE_COLUMN_DIALOG_TITLE_ID);
-  dialog.innerHTML = `
-    <div class="modal-header">
-      <span class="modal-title" id="${MOBILE_COLUMN_DIALOG_TITLE_ID}">Column actions</span>
-      <span class="modal-meta"></span>
-    </div>
+  var modal = window.DatasetteModal.create({
+    id: MOBILE_COLUMN_DIALOG_ID,
+    className: "mobile-column-actions-dialog",
+    title: "Column actions",
+    titleId: MOBILE_COLUMN_DIALOG_TITLE_ID,
+    content: `
     <div class="list-wrap mobile-column-list"></div>
     <div class="modal-footer">
       <span class="footer-info">Tap a column to reveal actions.</span>
       <button type="button" class="btn btn-ghost mobile-column-actions-done">Done</button>
     </div>
-  `;
-  document.body.appendChild(dialog);
+  `,
+  });
+  var dialog = modal.dialog;
 
   triggerButton.setAttribute("aria-haspopup", "dialog");
   triggerButton.setAttribute("aria-controls", MOBILE_COLUMN_DIALOG_ID);
   triggerButton.setAttribute("aria-expanded", "false");
 
-  var countEl = dialog.querySelector(".modal-meta");
   var listWrap = dialog.querySelector(".mobile-column-list");
   var doneButton = dialog.querySelector(".mobile-column-actions-done");
   var expandedSectionId = null;
-  var shouldRestoreFocus = true;
 
   function updateExpandedSection() {
     Array.from(dialog.querySelectorAll(".col-header")).forEach((button) => {
@@ -129,12 +126,12 @@ function initMobileColumnActions(manager) {
 
   function closeDialog(options) {
     options = options || {};
-    shouldRestoreFocus = options.restoreFocus !== false;
-    if (dialog.open) {
-      dialog.close();
+    var restoreFocus = options.restoreFocus !== false;
+    if (modal.open) {
+      modal.close({ restoreFocus: restoreFocus });
     } else {
       triggerButton.setAttribute("aria-expanded", "false");
-      if (shouldRestoreFocus) {
+      if (restoreFocus) {
         triggerButton.focus();
       }
     }
@@ -156,9 +153,7 @@ function initMobileColumnActions(manager) {
       expandedSectionId = null;
     }
 
-    countEl.textContent = `${headers.length} column${
-      headers.length === 1 ? "" : "s"
-    }`;
+    modal.setMeta(`${headers.length} column${headers.length === 1 ? "" : "s"}`);
     listWrap.innerHTML = "";
 
     if (manager.columnActions.shouldShowShowAllColumns()) {
@@ -265,9 +260,7 @@ function initMobileColumnActions(manager) {
     if (!renderDialog()) {
       return;
     }
-    if (!dialog.open) {
-      dialog.showModal();
-    }
+    modal.showModal({ trigger: triggerButton });
     triggerButton.setAttribute("aria-expanded", "true");
     var focusTarget =
       dialog.querySelector(".mobile-column-top-action") ||
@@ -277,7 +270,7 @@ function initMobileColumnActions(manager) {
   }
 
   triggerButton.addEventListener("click", function () {
-    if (dialog.open) {
+    if (modal.open) {
       closeDialog();
     } else {
       openDialog();
@@ -288,26 +281,12 @@ function initMobileColumnActions(manager) {
     closeDialog();
   });
 
-  dialog.addEventListener("click", function (ev) {
-    if (ev.target === dialog) {
-      closeDialog();
-    }
-  });
-
-  dialog.addEventListener("cancel", function (ev) {
-    ev.preventDefault();
-    closeDialog();
-  });
-
-  dialog.addEventListener("close", function () {
+  modal.addEventListener("datasette-modal-close", function () {
     triggerButton.setAttribute("aria-expanded", "false");
-    if (shouldRestoreFocus) {
-      triggerButton.focus();
-    }
   });
 
   window.addEventListener("resize", function () {
-    if (window.innerWidth > MOBILE_COLUMN_BREAKPOINT && dialog.open) {
+    if (window.innerWidth > MOBILE_COLUMN_BREAKPOINT && modal.open) {
       closeDialog({ restoreFocus: false });
     }
   });

datasette/static/navigation-search.js

@@ -16,7 +16,6 @@ class NavigationSearch extends HTMLElement {
     this.renderedMatches = [];
     this.debounceTimer = null;
     this.restoreFocusTarget = null;
-    this.shouldRestoreFocus = true;
 
     this.render();
     this.setupEventListeners();
@@ -29,38 +28,10 @@ class NavigationSearch extends HTMLElement {
                     display: contents;
                 }
 
-                dialog {
-                    border: none;
-                    border-radius: var(--modal-border-radius, 0.75rem);
-                    padding: 0;
-                    max-width: 90vw;
-                    width: 600px;
-                    max-height: 80vh;
-                    box-shadow: var(--modal-shadow, 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04));
-                    animation: slideIn var(--modal-animation-duration, 0.2s) ease-out;
-                }
-
-                dialog::backdrop {
-                    background: var(--modal-backdrop-bg, rgba(0, 0, 0, 0.5));
-                    backdrop-filter: var(--modal-backdrop-blur, blur(4px));
-                    -webkit-backdrop-filter: var(--modal-backdrop-blur, blur(4px));
-                    animation: fadeIn var(--modal-animation-duration, 0.2s) ease-out;
-                }
-
-                @keyframes slideIn {
-                    from {
-                        opacity: 0;
-                        transform: translateY(-20px) scale(0.95);
-                    }
-                    to {
-                        opacity: 1;
-                        transform: translateY(0) scale(1);
-                    }
-                }
-
-                @keyframes fadeIn {
-                    from { opacity: 0; }
-                    to { opacity: 1; }
+                /* Frame styles come from the shared <datasette-modal> component */
+                datasette-modal {
+                    --datasette-modal-width: min(600px, 90vw);
+                    --datasette-modal-max-height: 80vh;
                 }
 
                 .search-container {
@@ -255,12 +226,6 @@ class NavigationSearch extends HTMLElement {
 
                 /* Mobile optimizations */
                 @media (max-width: 640px) {
-                    dialog {
-                        width: 95vw;
-                        max-height: 85vh;
-                        border-radius: 0.5rem;
-                    }
-
                     .search-input-wrapper {
                         padding: 1rem;
                     }
@@ -280,7 +245,7 @@ class NavigationSearch extends HTMLElement {
                 }
             </style>
 
-            <dialog aria-modal="true" aria-labelledby="${this.titleId}">
+            <datasette-modal labelled-by="${this.titleId}">
                 <div class="search-container">
                     <h2 id="${this.titleId}" class="visually-hidden">Jump to</h2>
                     <p id="${this.instructionsId}" class="visually-hidden">Type to search. Use up and down arrow keys to move through results, Enter to select a result, and Escape to close this menu.</p>
@@ -309,12 +274,12 @@ class NavigationSearch extends HTMLElement {
                         <span><kbd>Esc</kbd> Close</span>
                     </div>
                 </div>
-            </dialog>
+            </datasette-modal>
         `;
+    this._modal = this.shadowRoot.querySelector("datasette-modal");
   }
 
   setupEventListeners() {
-    const dialog = this.shadowRoot.querySelector("dialog");
     const input = this.shadowRoot.querySelector(".search-input");
     const closeButton = this.shadowRoot.querySelector(".close-search");
     const resultsContainer =
@@ -322,7 +287,7 @@ class NavigationSearch extends HTMLElement {
 
     // Global keyboard listener for "/"
     document.addEventListener("keydown", (e) => {
-      if (e.key === "/" && !this.isInputFocused() && !dialog.open) {
+      if (e.key === "/" && !this.isInputFocused() && !this._modal.open) {
         e.preventDefault();
         this.openMenu();
       }
@@ -380,19 +345,8 @@ class NavigationSearch extends HTMLElement {
       }
     });
 
-    // Close on backdrop click
-    dialog.addEventListener("click", (e) => {
-      if (e.target === dialog) {
-        this.closeMenu();
-      }
-    });
-
-    dialog.addEventListener("cancel", (e) => {
-      e.preventDefault();
-      this.closeMenu();
-    });
-
-    dialog.addEventListener("close", () => {
+    // Backdrop clicks and the Escape key are handled by <datasette-modal>
+    this._modal.addEventListener("datasette-modal-close", () => {
       this.onMenuClosed();
     });
 
@@ -465,18 +419,17 @@ class NavigationSearch extends HTMLElement {
   }
 
   updateComboboxState() {
-    const dialog = this.shadowRoot.querySelector("dialog");
+    const isOpen = this._modal.open;
     const input = this.shadowRoot.querySelector(".search-input");
     const matches = this.renderedMatches || [];
     this.setElementAttribute(
       input,
       "aria-expanded",
-      dialog && dialog.open && matches.length > 0 ? "true" : "false",
+      isOpen && matches.length > 0 ? "true" : "false",
     );
 
     if (
-      dialog &&
-      dialog.open &&
+      isOpen &&
       this.selectedIndex >= 0 &&
       this.selectedIndex < matches.length
     ) {
@@ -854,14 +807,14 @@ class NavigationSearch extends HTMLElement {
   }
 
   openMenu(trigger) {
-    const dialog = this.shadowRoot.querySelector("dialog");
+    if (!this._modal.dialog) {
+      // datasette-modal.js is missing or <dialog> is unsupported
+      return;
+    }
     const input = this.shadowRoot.querySelector(".search-input");
 
     this.restoreFocusTarget = this.focusRestoreTarget(trigger);
-    this.shouldRestoreFocus = true;
-    if (!dialog.open) {
-      dialog.showModal();
-    }
+    this._modal.showModal({ trigger: this.restoreFocusTarget });
     this.setNavigationTriggersExpanded(true);
     input.value = "";
     input.focus();
@@ -874,10 +827,8 @@ class NavigationSearch extends HTMLElement {
   }
 
   closeMenu(options = {}) {
-    const dialog = this.shadowRoot.querySelector("dialog");
-    this.shouldRestoreFocus = options.restoreFocus !== false;
-    if (dialog.open) {
-      dialog.close();
+    if (this._modal.open) {
+      this._modal.close({ restoreFocus: options.restoreFocus !== false });
     } else {
       this.onMenuClosed();
     }
@@ -889,13 +840,6 @@ class NavigationSearch extends HTMLElement {
     this.removeElementAttribute(input, "aria-activedescendant");
     this.setNavigationTriggersExpanded(false);
     this.setStatus("");
-    if (
-      this.shouldRestoreFocus &&
-      this.restoreFocusTarget &&
-      typeof this.restoreFocusTarget.focus === "function"
-    ) {
-      this.restoreFocusTarget.focus();
-    }
     this.restoreFocusTarget = null;
   }
 

datasette/static/table.js

@@ -114,7 +114,12 @@ function getSetColumnTypeConfig(column) {
 }
 
 function canSetColumnType() {
-  return !!(getSetColumnTypeData() && window.HTMLDialogElement && window.fetch);
+  return !!(
+    getSetColumnTypeData() &&
+    window.DatasetteModal &&
+    window.DatasetteModal.supported &&
+    window.fetch
+  );
 }
 
 function setColumnTypeActionLabel(column) {
@@ -157,6 +162,7 @@ function createSetColumnTypeOption(value, name, description, checked) {
 
 function setSetColumnTypeDialogBusy(state, isBusy) {
   state.isBusy = isBusy;
+  state.modal.busy = isBusy;
   state.saveButton.disabled = isBusy;
   state.cancelButton.disabled = isBusy;
   Array.from(
@@ -181,33 +187,31 @@ function ensureSetColumnTypeDialog() {
   if (setColumnTypeDialogState) {
     return setColumnTypeDialogState;
   }
-  if (!window.HTMLDialogElement) {
+  if (!window.DatasetteModal || !window.DatasetteModal.supported) {
     return null;
   }
 
-  var dialog = document.createElement("dialog");
-  dialog.id = SET_COLUMN_TYPE_DIALOG_ID;
-  dialog.className = "set-column-type-dialog";
-  dialog.setAttribute("aria-labelledby", "set-column-type-title");
-  dialog.innerHTML = `
-    <div class="modal-header">
-      <span class="modal-title" id="set-column-type-title">Set custom type</span>
-      <span class="modal-meta"></span>
-    </div>
+  var modal = window.DatasetteModal.create({
+    id: SET_COLUMN_TYPE_DIALOG_ID,
+    className: "set-column-type-dialog",
+    title: "Set custom type",
+    titleId: "set-column-type-title",
+    content: `
     <p class="set-column-type-status"></p>
     <p class="set-column-type-error" hidden></p>
     <div class="set-column-type-options"></div>
     <div class="modal-footer">
       <span class="footer-info"></span>
-      <button type="button" class="btn btn-ghost set-column-type-cancel">Cancel</button>
+      <button type="button" class="btn btn-ghost set-column-type-cancel" data-modal-cancel>Cancel</button>
       <button type="button" class="btn btn-primary set-column-type-save">Save</button>
     </div>
-  `;
-  document.body.appendChild(dialog);
+  `,
+  });
+  var dialog = modal.dialog;
 
   setColumnTypeDialogState = {
+    modal: modal,
     dialog: dialog,
-    meta: dialog.querySelector(".modal-meta"),
     status: dialog.querySelector(".set-column-type-status"),
     error: dialog.querySelector(".set-column-type-error"),
     optionsWrap: dialog.querySelector(".set-column-type-options"),
@@ -219,72 +223,57 @@ function ensureSetColumnTypeDialog() {
     isBusy: false,
   };
 
-  setColumnTypeDialogState.cancelButton.addEventListener("click", function () {
-    if (!setColumnTypeDialogState.isBusy) {
-      dialog.close();
-    }
-  });
-
-  dialog.addEventListener("click", function (ev) {
-    if (ev.target === dialog && !setColumnTypeDialogState.isBusy) {
-      dialog.close();
-    }
-  });
-
-  dialog.addEventListener("cancel", function (ev) {
-    if (setColumnTypeDialogState.isBusy) {
-      ev.preventDefault();
-    }
-  });
-
-  dialog.addEventListener("close", function () {
+  modal.addEventListener("datasette-modal-close", function () {
     clearSetColumnTypeDialogError(setColumnTypeDialogState);
     setSetColumnTypeDialogBusy(setColumnTypeDialogState, false);
   });
 
-  setColumnTypeDialogState.saveButton.addEventListener("click", async function () {
-    var state = setColumnTypeDialogState;
-    var selected = state.dialog.querySelector(
-      'input[name="set-column-type-choice"]:checked',
-    );
-    var selectedType = selected ? selected.value : "";
-    var currentType = state.currentConfig.current
-      ? state.currentConfig.current.type
-      : "";
+  setColumnTypeDialogState.saveButton.addEventListener(
+    "click",
+    async function () {
+      var state = setColumnTypeDialogState;
+      var selected = state.dialog.querySelector(
+        'input[name="set-column-type-choice"]:checked',
+      );
+      var selectedType = selected ? selected.value : "";
+      var currentType = state.currentConfig.current
+        ? state.currentConfig.current.type
+        : "";
 
-    if (selectedType === currentType) {
-      state.dialog.close();
-      return;
-    }
-
-    clearSetColumnTypeDialogError(state);
-    setSetColumnTypeDialogBusy(state, true);
-
-    var payload = {
-      column: state.currentColumn,
-      column_type: selectedType ? { type: selectedType } : null,
-    };
-
-    try {
-      var response = await fetch(getSetColumnTypeData().path, {
-        method: "POST",
-        headers: {
-          "Content-Type": "application/json",
-          Accept: "application/json",
-        },
-        body: JSON.stringify(payload),
-      });
-      var data = await response.json();
-      if (!response.ok || data.ok === false) {
-        var message = (data.errors || ["Request failed"]).join(" ");
-        throw new Error(message);
+      if (selectedType === currentType) {
+        state.modal.close();
+        return;
       }
-      location.reload();
-    } catch (error) {
-      setSetColumnTypeDialogBusy(state, false);
-      showSetColumnTypeDialogError(state, error.message || "Request failed");
-    }
-  });
+
+      clearSetColumnTypeDialogError(state);
+      setSetColumnTypeDialogBusy(state, true);
+
+      var payload = {
+        column: state.currentColumn,
+        column_type: selectedType ? { type: selectedType } : null,
+      };
+
+      try {
+        var response = await fetch(getSetColumnTypeData().path, {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            Accept: "application/json",
+          },
+          body: JSON.stringify(payload),
+        });
+        var data = await response.json();
+        if (!response.ok || data.ok === false) {
+          var message = (data.errors || ["Request failed"]).join(" ");
+          throw new Error(message);
+        }
+        location.reload();
+      } catch (error) {
+        setSetColumnTypeDialogBusy(state, false);
+        showSetColumnTypeDialogError(state, error.message || "Request failed");
+      }
+    },
+  );
 
   return setColumnTypeDialogState;
 }
@@ -306,7 +295,7 @@ function openSetColumnTypeDialog(th) {
   state.currentColumn = column;
   state.currentConfig = columnConfig;
   state.status.textContent = `Column: ${column}`;
-  state.meta.textContent = getColumnTypeText(th) || "Type unavailable";
+  state.modal.setMeta(getColumnTypeText(th) || "Type unavailable");
   state.footerInfo.textContent = columnConfig.current
     ? `Current custom type: ${columnConfig.current.type}`
     : "No custom type set.";
@@ -341,9 +330,7 @@ function openSetColumnTypeDialog(th) {
     state.optionsWrap.appendChild(emptyState);
   }
 
-  if (!state.dialog.open) {
-    state.dialog.showModal();
-  }
+  state.modal.showModal();
   var selectedOption = state.dialog.querySelector(
     'input[name="set-column-type-choice"]:checked',
   );
@@ -367,9 +354,10 @@ function shouldShowShowAllColumns() {
 
 function hasMultipleVisibleColumns(manager) {
   return (
-    Array.from(document.querySelectorAll(manager.selectors.tableHeaders)).filter(
-      (th) => th.dataset.column && th.dataset.isLinkColumn !== "1",
-    ).length > 1
+    Array.from(
+      document.querySelectorAll(manager.selectors.tableHeaders),
+    ).filter((th) => th.dataset.column && th.dataset.isLinkColumn !== "1")
+      .length > 1
   );
 }
 
@@ -649,10 +637,12 @@ function filterRowNumberFromName(name) {
 }
 
 function nextFilterRowNumber(manager) {
-  return filterRowsWithControls(manager).reduce((max, row) => {
-    var column = row.querySelector("select");
-    return Math.max(max, filterRowNumberFromName(column && column.name));
-  }, 0) + 1;
+  return (
+    filterRowsWithControls(manager).reduce((max, row) => {
+      var column = row.querySelector("select");
+      return Math.max(max, filterRowNumberFromName(column && column.name));
+    }, 0) + 1
+  );
 }
 
 function setFilterRowNumber(row, number) {
@@ -679,9 +669,11 @@ function updateFilterRowButtons(manager) {
     if (addButton) {
       addButton.hidden = index !== rows.length - 1 || !column.value;
     }
-    var visibleButtonCount = [removeButton, addButton].filter(function (button) {
-      return button && !button.hidden;
-    }).length;
+    var visibleButtonCount = [removeButton, addButton].filter(
+      function (button) {
+        return button && !button.hidden;
+      },
+    ).length;
     row.classList.toggle(
       "filter-controls-row-has-buttons",
       visibleButtonCount > 0,
@@ -703,7 +695,9 @@ function cloneFilterRow(row) {
   clone.querySelector(".filter-op select").name = "_filter_op";
   clone.querySelector("input.filter-value").name = "_filter_value";
   resetFilterRow(clone);
-  clone.querySelectorAll(".filter-row-icon").forEach((button) => button.remove());
+  clone
+    .querySelectorAll(".filter-row-icon")
+    .forEach((button) => button.remove());
   return clone;
 }
 

datasette/stored_queries.py

@@ -1,9 +1,8 @@
 from __future__ import annotations
 
-import json
-from collections.abc import Iterable
 from dataclasses import dataclass
-from typing import Any
+import json
+from typing import Any, Iterable
 
 from .utils import tilde_encode, urlsafe_components
 
@@ -63,6 +62,7 @@ def stored_query_to_dict(query: StoredQuery) -> dict[str, Any]:
         "description_html": query.description_html,
         "hide_sql": query.hide_sql,
         "fragment": query.fragment,
+        "params": list(query.parameters),
         "parameters": list(query.parameters),
         "is_write": query.is_write,
         "is_private": query.is_private,
@@ -84,6 +84,7 @@ def stored_query_page_to_dict(page: StoredQueryPage) -> dict[str, Any]:
     return {
         "queries": [stored_query_to_dict(query) for query in page.queries],
         "next": page.next,
+        "has_more": page.has_more,
         "limit": page.limit,
     }
 
@@ -387,7 +388,7 @@ async def count_queries(
                 OR q.sql LIKE :query_search
             )
             """)
-        params["query_search"] = f"%{q}%"
+        params["query_search"] = "%{}%".format(q)
     if is_write is not None:
         where_clauses.append("q.is_write = :query_is_write")
         params["query_is_write"] = int(bool(is_write))
@@ -463,7 +464,7 @@ async def list_queries(
         except ValueError:
             components = []
         if database is None and len(components) == 3:
-            where_clauses.append(f"""
+            where_clauses.append("""
                 (
                     q.database_name > :cursor_database
                     OR (
@@ -477,12 +478,12 @@ async def list_queries(
                         )
                     )
                 )
-                """)
+                """.format(sort_key_sql=sort_key_sql))
             params["cursor_database"] = components[0]
             params["cursor_sort_key"] = components[1]
             params["cursor_name"] = components[2]
         elif database is not None and len(components) == 2:
-            where_clauses.append(f"""
+            where_clauses.append("""
                 (
                     {sort_key_sql} > :cursor_sort_key
                     OR (
@@ -490,7 +491,7 @@ async def list_queries(
                         AND q.name > :cursor_name
                     )
                 )
-                """)
+                """.format(sort_key_sql=sort_key_sql))
             params["cursor_sort_key"] = components[0]
             params["cursor_name"] = components[1]
 
@@ -503,7 +504,7 @@ async def list_queries(
                 OR q.sql LIKE :query_search
             )
             """)
-        params["query_search"] = f"%{q}%"
+        params["query_search"] = "%{}%".format(q)
     if is_write is not None:
         where_clauses.append("q.is_write = :query_is_write")
         params["query_is_write"] = int(bool(is_write))

datasette/templates/_permission_ui_styles.html

@@ -6,20 +6,8 @@
     padding: 1.5em;
     margin-bottom: 2em;
 }
-.permission-form form {
-    max-width: 60rem;
-}
-.permission-form-grid {
-    display: grid;
-    gap: 1.5rem;
-    grid-template-columns: repeat(2, minmax(0, 1fr));
-}
-.permission-form-result {
-    margin-top: 1rem;
-    max-width: 60rem;
-}
 .form-section {
-    margin-bottom: 1.25em;
+    margin-bottom: 1em;
 }
 .form-section label {
     display: block;
@@ -27,51 +15,22 @@
     font-weight: bold;
 }
 .form-section input[type="text"],
-.form-section input[type="number"],
-.form-section select,
-.permission-textarea {
-    background-color: #fff;
-    border: 1px solid #aaa;
-    border-radius: 4px;
-    box-sizing: border-box;
-    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.08);
-    color: #222;
-    font-family: inherit;
-    font-size: 1rem;
-    line-height: 1.4;
-    max-width: none;
-    width: 100%;
-}
-.form-section input[type="text"] {
-    height: 3rem;
-    padding: 0.6rem 0.75rem;
-}
-.form-section input[type="number"] {
-    height: 3rem;
-    max-width: 7rem;
-    padding: 0.6rem 0.75rem;
-}
 .form-section select {
-    height: 3rem;
-    padding: 0.6rem 0.75rem;
-}
-.permission-textarea {
-    font-family: monospace;
-    min-height: 12rem;
-    padding: 0.75rem;
-    resize: vertical;
+    width: 100%;
+    max-width: 500px;
+    padding: 0.5em;
+    box-sizing: border-box;
+    border: 1px solid #ccc;
+    border-radius: 3px;
 }
 .form-section input[type="text"]:focus,
-.form-section input[type="number"]:focus,
-.form-section select:focus,
-.permission-textarea:focus {
+.form-section select:focus {
+    outline: 2px solid #0066cc;
     border-color: #0066cc;
-    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.18);
-    outline: none;
 }
 .form-section small {
     display: block;
-    margin-top: 0.45em;
+    margin-top: 0.3em;
     color: #666;
 }
 .form-actions {
@@ -183,9 +142,4 @@
     text-align: center;
     color: #666;
 }
-@media only screen and (max-width: 576px) {
-    .permission-form-grid {
-        grid-template-columns: minmax(0, 1fr);
-    }
-}
 </style>

datasette/templates/_permissions_debug_tabs.html

@@ -44,10 +44,10 @@
 </style>
 
 <nav class="permissions-debug-tabs">
-    <a href="{{ urls.path('-/check') }}{{ query_string }}" {% if current_tab == "check" %}class="active"{% endif %}>Explain</a>
-    <a href="{{ urls.path('-/allowed') }}{{ query_string }}" {% if current_tab == "allowed" %}class="active"{% endif %}>Access map</a>
-    <a href="{{ urls.path('-/rules') }}{{ query_string }}" {% if current_tab == "rules" %}class="active"{% endif %}>Rule explorer</a>
-    <a href="{{ urls.path('-/permissions') }}" {% if current_tab == "permissions" %}class="active"{% endif %}>Activity</a>
+    <a href="{{ urls.path('-/permissions') }}" {% if current_tab == "permissions" %}class="active"{% endif %}>Playground</a>
+    <a href="{{ urls.path('-/check') }}{{ query_string }}" {% if current_tab == "check" %}class="active"{% endif %}>Check</a>
+    <a href="{{ urls.path('-/allowed') }}{{ query_string }}" {% if current_tab == "allowed" %}class="active"{% endif %}>Allowed</a>
+    <a href="{{ urls.path('-/rules') }}{{ query_string }}" {% if current_tab == "rules" %}class="active"{% endif %}>Rules</a>
     <a href="{{ urls.path('-/actions') }}" {% if current_tab == "actions" %}class="active"{% endif %}>Actions</a>
     <a href="{{ urls.path('-/allow-debug') }}" {% if current_tab == "allow_debug" %}class="active"{% endif %}>Allow debug</a>
 </nav>

datasette/templates/allow_debug.html

@@ -3,11 +3,29 @@
 {% block title %}Debug allow rules{% endblock %}
 
 {% block extra_head %}
-{% include "_permission_ui_styles.html" %}
 <style>
+textarea {
+    height: 10em;
+    width: 95%;
+    box-sizing: border-box;
+    padding: 0.5em;
+    border: 2px dotted black;
+}
+.two-col {
+    display: inline-block;
+    width: 48%;
+}
+.two-col label {
+    width: 48%;
+}
 p.message-warning {
     white-space: pre-wrap;
 }
+@media only screen and (max-width: 576px) {
+    .two-col {
+        width: 100%;
+    }
+}
 </style>
 {% endblock %}
 
@@ -20,28 +38,24 @@ p.message-warning {
 
 <p>Use this tool to try out different actor and allow combinations. See <a href="https://docs.datasette.io/en/stable/authentication.html#defining-permissions-with-allow-blocks">Defining permissions with "allow" blocks</a> for documentation.</p>
 
-<div class="permission-form">
-    <form class="core" action="{{ urls.path('-/allow-debug') }}" method="get">
-        <div class="permission-form-grid">
-            <div class="form-section">
-                <label for="allow-block">Allow block</label>
-                <textarea class="permission-textarea" id="allow-block" name="allow">{{ allow_input }}</textarea>
-            </div>
-            <div class="form-section">
-                <label for="allow-actor">Actor</label>
-                <textarea class="permission-textarea" id="allow-actor" name="actor">{{ actor_input }}</textarea>
-            </div>
-        </div>
-        <div class="form-actions">
-            <button type="submit" class="submit-btn">Apply allow block to actor</button>
-        </div>
-    </form>
+<form class="core" action="{{ urls.path('-/allow-debug') }}" method="get" style="margin-bottom: 1em">
+    <div class="two-col">
+        <p><label>Allow block</label></p>
+        <textarea name="allow">{{ allow_input }}</textarea>
+    </div>
+    <div class="two-col">
+        <p><label>Actor</label></p>
+        <textarea name="actor">{{ actor_input }}</textarea>
+    </div>
+    <div style="margin-top: 1em;">
+        <input type="submit" value="Apply allow block to actor">
+    </div>
+</form>
 
-    {% if error %}<p class="message-warning permission-form-result">{{ error }}</p>{% endif %}
+{% if error %}<p class="message-warning">{{ error }}</p>{% endif %}
 
-    {% if result == "True" %}<p class="message-info permission-form-result">Result: allow</p>{% endif %}
+{% if result == "True" %}<p class="message-info">Result: allow</p>{% endif %}
 
-    {% if result == "False" %}<p class="message-error permission-form-result">Result: deny</p>{% endif %}
-</div>
+{% if result == "False" %}<p class="message-error">Result: deny</p>{% endif %}
 
 {% endblock %}

datasette/templates/api_explorer.html

@@ -3,6 +3,7 @@
 {% block title %}API Explorer{% endblock %}
 
 {% block extra_head %}
+<script src="{{ static('json-format-highlight-1.0.1.js') }}"></script>
 {% endblock %}
 
 {% block content %}
@@ -125,7 +126,7 @@ getForm.addEventListener("submit", (ev) => {
     document.getElementById('response-status').textContent = response.status;
     return response.json();
   }).then((data) => {
-    output.querySelector('pre').textContent = JSON.stringify(data, null, 2);
+    output.querySelector('pre').innerHTML = jsonFormatHighlight(data);
     errorList.style.display = 'none';
   }).catch((error) => {
     alert(error);
@@ -173,7 +174,7 @@ postForm.addEventListener("submit", (ev) => {
     } else {
       errorList.style.display = 'none';
     }
-    output.querySelector('pre').textContent = JSON.stringify(data, null, 2);
+    output.querySelector('pre').innerHTML = jsonFormatHighlight(data);
     output.style.display = 'block';
   }).catch(err => {
     alert("Error: " + err);

datasette/templates/base.html

@@ -9,6 +9,7 @@
 {% endfor %}
 <script>window.datasetteVersion = '{{ datasette_version }}';</script>
 <script src="{{ static('datasette-manager.js') }}" defer></script>
+<script src="{{ static('datasette-modal.js') }}" defer></script>
 {% for url in extra_js_urls %}
     <script {% if url.module %}type="module" {% endif %}src="{{ url.url }}"{% if url.get("sri") %} integrity="{{ url.sri }}" crossorigin="anonymous"{% endif %}></script>
 {% endfor %}

datasette/templates/debug_actions.html

@@ -9,7 +9,7 @@
 {% include "_permissions_debug_tabs.html" %}
 
 <p style="margin-bottom: 2em;">
-  This Datasette instance has registered {{ data.actions|length }} action{{ data.actions|length != 1 and "s" or "" }}.
+  This Datasette instance has registered {{ data|length }} action{{ data|length != 1 and "s" or "" }}.
   Actions are used by the permission system to control access to different features.
 </p>
 
@@ -26,7 +26,7 @@
     </tr>
   </thead>
   <tbody>
-    {% for action in data.actions %}
+    {% for action in data %}
     <tr>
       <td><strong>{{ action.name }}</strong></td>
       <td>{% if action.abbr %}<code>{{ action.abbr }}</code>{% endif %}</td>

datasette/templates/debug_allowed.html

@@ -3,6 +3,7 @@
 {% block title %}Allowed Resources{% endblock %}
 
 {% block extra_head %}
+<script src="{{ static('json-format-highlight-1.0.1.js') }}"></script>
 {% include "_permission_ui_styles.html" %}
 {% include "_debug_common_functions.html" %}
 {% endblock %}
@@ -48,7 +49,7 @@
 
         <div class="form-section">
             <label for="page_size">Page size:</label>
-            <input type="number" id="page_size" name="_size" value="50" min="1" max="200">
+            <input type="number" id="page_size" name="page_size" value="50" min="1" max="200" style="max-width: 100px;">
             <small>Number of results per page (max 200)</small>
         </div>
 
@@ -87,7 +88,7 @@ const hasDebugPermission = {{ 'true' if has_debug_permission else 'false' }};
 (function() {
     const params = populateFormFromURL();
     const action = params.get('action');
-    const page = params.get('_page');
+    const page = params.get('page');
     if (action) {
         fetchResults(page ? parseInt(page) : 1);
     }
@@ -101,14 +102,14 @@ async function fetchResults(page = 1) {
     const params = new URLSearchParams();
 
     for (const [key, value] of formData.entries()) {
-        if (value && key !== '_size' && key !== '_page') {
+        if (value && key !== 'page_size') {
             params.append(key, value);
         }
     }
 
     const pageSize = document.getElementById('page_size').value || '50';
-    params.append('_page', page.toString());
-    params.append('_size', pageSize);
+    params.append('page', page.toString());
+    params.append('page_size', pageSize);
 
     try {
         const response = await fetch('{{ urls.path("-/allowed.json") }}?' + params.toString(), {
@@ -197,7 +198,7 @@ function displayResults(data) {
     }
 
     // Update raw JSON
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
 }
 
 function displayError(data) {
@@ -207,7 +208,7 @@ function displayError(data) {
 
     resultsContent.innerHTML = `<div class="error-message">Error: ${escapeHtml(data.error || 'Unknown error')}</div>`;
 
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
 }
 
 // Disable child input if parent is empty

datasette/templates/debug_check.html

@@ -1,8 +1,9 @@
 {% extends "base.html" %}
 
-{% block title %}Explain a permission decision{% endblock %}
+{% block title %}Permission Check{% endblock %}
 
 {% block extra_head %}
+<script src="{{ static('json-format-highlight-1.0.1.js') }}"></script>
 {% include "_permission_ui_styles.html" %}
 {% include "_debug_common_functions.html" %}
 <style>
@@ -12,35 +13,29 @@
     border-radius: 5px;
 }
 #output.allowed {
-    background-color: #f3fbf4;
+    background-color: #e8f5e9;
     border: 2px solid #4caf50;
 }
 #output.denied {
-    background-color: #fff7f7;
+    background-color: #ffebee;
     border: 2px solid #f44336;
 }
 #output h2 {
     margin-top: 0;
 }
-#output h3 {
-    margin-bottom: 0.5em;
-}
-#output .result-badge,
-.effect-badge,
-.rule-status {
+#output .result-badge {
     display: inline-block;
-    padding: 0.2em 0.5em;
+    padding: 0.3em 0.8em;
     border-radius: 3px;
     font-weight: bold;
+    font-size: 1.1em;
 }
-#output .allowed-badge,
-.effect-allow {
-    background-color: #2e7d32;
+#output .allowed-badge {
+    background-color: #4caf50;
     color: white;
 }
-#output .denied-badge,
-.effect-deny {
-    background-color: #c62828;
+#output .denied-badge {
+    background-color: #f44336;
     color: white;
 }
 .details-section {
@@ -53,130 +48,70 @@
 .details-section dd {
     margin-left: 1em;
 }
-.explanation-section {
-    background: rgba(255, 255, 255, 0.75);
-    border: 1px solid #ddd;
-    border-radius: 4px;
-    margin-top: 1em;
-    padding: 0 1em 1em;
-}
-.rules-table {
-    border-collapse: collapse;
-    width: 100%;
-}
-.rules-table th,
-.rules-table td {
-    border-bottom: 1px solid #ddd;
-    padding: 0.5em;
-    text-align: left;
-    vertical-align: top;
-}
-.rule-status {
-    background: #e8f5e9;
-    color: #1b5e20;
-}
-.rule-ignored {
-    background: #eee;
-    color: #555;
-    font-weight: normal;
-}
-.requirement-allowed {
-    color: #1b5e20;
-}
-.requirement-denied {
-    color: #b71c1c;
-}
-@media only screen and (max-width: 576px) {
-    .rules-table,
-    .rules-table tbody,
-    .rules-table tr,
-    .rules-table td {
-        display: block;
-    }
-    .rules-table thead {
-        display: none;
-    }
-    .rules-table td::before {
-        content: attr(data-label) ": ";
-        font-weight: bold;
-    }
-}
 </style>
 {% endblock %}
 
 {% block content %}
-<h1>Explain a permission decision</h1>
+<h1>Permission check</h1>
 
 {% set current_tab = "check" %}
 {% include "_permissions_debug_tabs.html" %}
 
-<p>Test an actor, action and resource. The result explains which rules matched, which specificity level won, and whether actor restrictions or required actions changed the verdict.</p>
+<p>Use this tool to test permission checks for the current actor. It queries the <code>/-/check.json</code> API endpoint.</p>
+
+{% if request.actor %}
+<p>Current actor: <strong>{{ request.actor.get("id", "anonymous") }}</strong></p>
+{% else %}
+<p>Current actor: <strong>anonymous (not logged in)</strong></p>
+{% endif %}
 
 <div class="permission-form">
-    <form id="check-form" method="get" action="{{ urls.path('-/check') }}">
+    <form id="check-form" method="get" action="{{ urls.path("-/check") }}">
         <div class="form-section">
-            <label for="actor">Actor JSON:</label>
-            <textarea class="permission-textarea" id="actor" name="actor">{{ actor_json }}</textarea>
-            <small>Use <code>null</code> for an anonymous actor. This actor is simulated; it does not change who you are signed in as.</small>
-        </div>
-
-        <div class="form-section">
-            <label for="action">Action:</label>
+            <label for="action">Action (permission name):</label>
             <select id="action" name="action" required>
                 <option value="">Select an action...</option>
-                {% for action in actions %}
-                <option value="{{ action.name }}">{{ action.name }}{% if action.description %} — {{ action.description }}{% endif %}</option>
+                {% for action_name in sorted_actions %}
+                <option value="{{ action_name }}">{{ action_name }}</option>
                 {% endfor %}
             </select>
-            <small id="action-help">The operation to evaluate</small>
+            <small>The permission action to check</small>
         </div>
 
-        <div class="form-section" id="parent-section">
-            <label for="parent">Parent resource:</label>
+        <div class="form-section">
+            <label for="parent">Parent resource (optional):</label>
             <input type="text" id="parent" name="parent" placeholder="e.g., database name">
-            <small>The database or other parent resource</small>
+            <small>For database-level permissions, specify the database name</small>
         </div>
 
-        <div class="form-section" id="child-section">
-            <label for="child">Child resource:</label>
-            <input type="text" id="child" name="child" placeholder="e.g., table or query name">
-            <small>The table, query or other child resource</small>
+        <div class="form-section">
+            <label for="child">Child resource (optional):</label>
+            <input type="text" id="child" name="child" placeholder="e.g., table name">
+            <small>For table-level permissions, specify the table name (requires parent)</small>
         </div>
 
         <div class="form-actions">
-            <button type="submit" class="submit-btn" id="submit-btn">Explain decision</button>
+            <button type="submit" class="submit-btn" id="submit-btn">Check Permission</button>
         </div>
     </form>
 </div>
 
 <div id="output" style="display: none;">
     <h2>Result: <span class="result-badge" id="result-badge"></span></h2>
-    <p id="result-summary"></p>
 
     <dl class="details-section">
-        <dt>Actor:</dt>
-        <dd><code id="result-actor"></code></dd>
         <dt>Action:</dt>
-        <dd><code id="result-action"></code></dd>
-        <dt>Resource:</dt>
-        <dd><code id="result-resource"></code></dd>
+        <dd id="result-action"></dd>
+
+        <dt>Resource Path:</dt>
+        <dd id="result-resource"></dd>
+
+        <dt>Actor ID:</dt>
+        <dd id="result-actor"></dd>
+
+        <div id="additional-details"></div>
     </dl>
 
-    <section class="explanation-section">
-        <h3>Matching rules</h3>
-        <div id="matching-rules"></div>
-    </section>
-
-    <section class="explanation-section" id="restrictions-section">
-        <h3>Actor restrictions</h3>
-        <div id="restriction-results"></div>
-    </section>
-
-    <section class="explanation-section" id="requirements-section">
-        <h3>Required actions</h3>
-        <div id="requirement-results"></div>
-    </section>
-
     <details style="margin-top: 1em;">
         <summary style="cursor: pointer; font-weight: bold;">Raw JSON response</summary>
         <pre id="raw-json" style="margin-top: 1em; padding: 1em; background-color: #f5f5f5; border: 1px solid #ddd; border-radius: 3px; overflow-x: auto;"></pre>
@@ -184,134 +119,152 @@
 </div>
 
 <script>
-const actions = Object.fromEntries({{ actions|tojson }}.map(action => [action.name, action]));
 const form = document.getElementById('check-form');
 const output = document.getElementById('output');
 const submitBtn = document.getElementById('submit-btn');
-const actionSelect = document.getElementById('action');
-
-function updateResourceFields() {
-    const action = actions[actionSelect.value];
-    document.getElementById('parent-section').style.display = action && action.takes_parent ? 'block' : 'none';
-    document.getElementById('child-section').style.display = action && action.takes_child ? 'block' : 'none';
-    let help = action && action.description ? action.description : 'The operation to evaluate';
-    if (action && action.also_requires) {
-        help += `; also requires ${action.also_requires}`;
-    }
-    document.getElementById('action-help').textContent = help;
-}
 
 async function performCheck() {
     submitBtn.disabled = true;
-    submitBtn.textContent = 'Explaining...';
-    const params = new URLSearchParams(new FormData(form));
+    submitBtn.textContent = 'Checking...';
+
+    const formData = new FormData(form);
+    const params = new URLSearchParams();
+
+    for (const [key, value] of formData.entries()) {
+        if (value) {
+            params.append(key, value);
+        }
+    }
 
     try {
         const response = await fetch('{{ urls.path("-/check.json") }}?' + params.toString(), {
-            headers: {'Accept': 'application/json'}
+            method: 'GET',
+            headers: {
+                'Accept': 'application/json',
+            }
         });
+
         const data = await response.json();
+
         if (response.ok) {
             displayResult(data);
         } else {
             displayError(data);
         }
     } catch (error) {
-        displayError({error: error.message});
+        alert('Error: ' + error.message);
     } finally {
         submitBtn.disabled = false;
-        submitBtn.textContent = 'Explain decision';
+        submitBtn.textContent = 'Check Permission';
     }
 }
 
+// Populate form on initial load
+(function() {
+    const params = populateFormFromURL();
+    const action = params.get('action');
+    if (action) {
+        performCheck();
+    }
+})();
+
 function displayResult(data) {
     output.style.display = 'block';
+
+    // Set badge and styling
     const resultBadge = document.getElementById('result-badge');
-    output.className = data.allowed ? 'allowed' : 'denied';
-    resultBadge.className = `result-badge ${data.allowed ? 'allowed-badge' : 'denied-badge'}`;
-    resultBadge.textContent = data.allowed ? 'ALLOWED ✓' : 'DENIED ✗';
-    document.getElementById('result-summary').textContent = data.explanation.summary;
-    document.getElementById('result-actor').textContent = data.actor === null ? 'anonymous' : JSON.stringify(data.actor);
-    document.getElementById('result-action').textContent = data.action;
-    document.getElementById('result-resource').textContent = data.resource.path;
-    displayRules(data.explanation);
-    displayRestrictions(data.explanation.restrictions);
-    displayRequirements(data.explanation.required_actions);
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
-}
-
-function displayRules(explanation) {
-    const container = document.getElementById('matching-rules');
-    if (!explanation.matched_rules.length) {
-        container.innerHTML = '<p>No rules matched. Datasette denies access when there is no matching rule.</p>';
-        return;
+    if (data.allowed) {
+        output.className = 'allowed';
+        resultBadge.className = 'result-badge allowed-badge';
+        resultBadge.textContent = 'ALLOWED ✓';
+    } else {
+        output.className = 'denied';
+        resultBadge.className = 'result-badge denied-badge';
+        resultBadge.textContent = 'DENIED ✗';
     }
-    let html = '<table class="rules-table"><thead><tr><th>Effect</th><th>Scope</th><th>Source</th><th>Reason</th><th>Role in decision</th></tr></thead><tbody>';
-    for (const rule of explanation.matched_rules) {
-        const status = rule.decisive
-            ? '<span class="rule-status">Decisive</span>'
-            : `<span class="rule-status rule-ignored">${escapeHtml(rule.ignored_because)}</span>`;
-        html += '<tr>';
-        html += `<td data-label="Effect"><span class="effect-badge effect-${rule.effect}">${rule.effect.toUpperCase()}</span></td>`;
-        html += `<td data-label="Scope">${escapeHtml(rule.scope)}</td>`;
-        html += `<td data-label="Source"><code>${escapeHtml(rule.source || 'unknown')}</code></td>`;
-        html += `<td data-label="Reason">${escapeHtml(rule.reason || 'No reason supplied')}</td>`;
-        html += `<td data-label="Role in decision">${status}</td>`;
-        html += '</tr>';
+
+    // Basic details
+    document.getElementById('result-action').textContent = data.action || 'N/A';
+    document.getElementById('result-resource').textContent = data.resource?.path || '/';
+    document.getElementById('result-actor').textContent = data.actor_id || 'anonymous';
+
+    // Additional details
+    const additionalDetails = document.getElementById('additional-details');
+    additionalDetails.innerHTML = '';
+
+    if (data.reason !== undefined) {
+        const dt = document.createElement('dt');
+        dt.textContent = 'Reason:';
+        const dd = document.createElement('dd');
+        dd.textContent = data.reason || 'N/A';
+        additionalDetails.appendChild(dt);
+        additionalDetails.appendChild(dd);
     }
-    container.innerHTML = html + '</tbody></table>';
-}
 
-function displayRestrictions(restrictions) {
-    const section = document.getElementById('restrictions-section');
-    const container = document.getElementById('restriction-results');
-    section.style.display = restrictions.length ? 'block' : 'none';
-    container.innerHTML = restrictions.map(restriction => {
-        const className = restriction.allowed ? 'requirement-allowed' : 'requirement-denied';
-        const verdict = restriction.allowed ? 'INCLUDED ✓' : 'EXCLUDED ✗';
-        return `<p class="${className}"><strong>${verdict}</strong> by <code>${escapeHtml(restriction.source || 'unknown')}</code>: ${escapeHtml(restriction.reason)}</p>`;
-    }).join('');
-}
+    if (data.source_plugin !== undefined) {
+        const dt = document.createElement('dt');
+        dt.textContent = 'Source Plugin:';
+        const dd = document.createElement('dd');
+        dd.textContent = data.source_plugin || 'N/A';
+        additionalDetails.appendChild(dt);
+        additionalDetails.appendChild(dd);
+    }
 
-function displayRequirements(requirements) {
-    const section = document.getElementById('requirements-section');
-    const container = document.getElementById('requirement-results');
-    section.style.display = requirements.length ? 'block' : 'none';
-    container.innerHTML = requirements.map(requirement => {
-        const className = requirement.allowed ? 'requirement-allowed' : 'requirement-denied';
-        const verdict = requirement.allowed ? 'ALLOWED ✓' : 'DENIED ✗';
-        return `<p class="${className}"><strong>${escapeHtml(requirement.action)}: ${verdict}</strong> — ${escapeHtml(requirement.summary)}</p>`;
-    }).join('');
+    if (data.used_default !== undefined) {
+        const dt = document.createElement('dt');
+        dt.textContent = 'Used Default:';
+        const dd = document.createElement('dd');
+        dd.textContent = data.used_default ? 'Yes' : 'No';
+        additionalDetails.appendChild(dt);
+        additionalDetails.appendChild(dd);
+    }
+
+    if (data.depth !== undefined) {
+        const dt = document.createElement('dt');
+        dt.textContent = 'Depth:';
+        const dd = document.createElement('dd');
+        dd.textContent = data.depth;
+        additionalDetails.appendChild(dt);
+        additionalDetails.appendChild(dd);
+    }
+
+    // Raw JSON
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
+
+    // Scroll to output
+    output.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
 }
 
 function displayError(data) {
     output.style.display = 'block';
     output.className = 'denied';
+
     const resultBadge = document.getElementById('result-badge');
     resultBadge.className = 'result-badge denied-badge';
     resultBadge.textContent = 'ERROR';
-    document.getElementById('result-summary').textContent = data.error || 'Unknown error';
-    document.getElementById('result-actor').textContent = '—';
-    document.getElementById('result-action').textContent = '—';
-    document.getElementById('result-resource').textContent = '—';
-    document.getElementById('matching-rules').innerHTML = '';
-    document.getElementById('restrictions-section').style.display = 'none';
-    document.getElementById('requirements-section').style.display = 'none';
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
+
+    document.getElementById('result-action').textContent = 'N/A';
+    document.getElementById('result-resource').textContent = 'N/A';
+    document.getElementById('result-actor').textContent = 'N/A';
+
+    const additionalDetails = document.getElementById('additional-details');
+    additionalDetails.innerHTML = '<dt>Error:</dt><dd>' + (data.error || 'Unknown error') + '</dd>';
+
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
+
+    output.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
 }
 
-form.addEventListener('submit', event => {
-    event.preventDefault();
-    performCheck();
-});
-actionSelect.addEventListener('change', updateResourceFields);
+// Disable child input if parent is empty
+const parentInput = document.getElementById('parent');
+const childInput = document.getElementById('child');
 
-(function initializeFromUrl() {
-    const params = populateFormFromURL();
-    updateResourceFields();
-    if (params.get('action')) {
-        performCheck();
+childInput.addEventListener('focus', () => {
+    if (!parentInput.value) {
+        alert('Please specify a parent resource first before adding a child resource.');
+        parentInput.focus();
     }
-})();
+});
 </script>
+
 {% endblock %}

datasette/templates/debug_permissions_playground.html

@@ -1,6 +1,6 @@
 {% extends "base.html" %}
 
-{% block title %}Permission activity{% endblock %}
+{% block title %}Debug permissions{% endblock %}
 
 {% block extra_head %}
 {% include "_permission_ui_styles.html" %}
@@ -20,45 +20,60 @@
 .check-action, .check-when, .check-result {
     font-size: 1.3em;
 }
+textarea {
+    height: 10em;
+    width: 95%;
+    box-sizing: border-box;
+    padding: 0.5em;
+    border: 2px dotted black;
+}
+.two-col {
+    display: inline-block;
+    width: 48%;
+}
+.two-col label {
+    width: 48%;
+}
+@media only screen and (max-width: 576px) {
+    .two-col {
+        width: 100%;
+    }
+}
 </style>
 {% endblock %}
 
 {% block content %}
-<h1>Permission activity</h1>
+<h1>Permission playground</h1>
 
 {% set current_tab = "permissions" %}
 {% include "_permissions_debug_tabs.html" %}
 
-<h2>Raw simulator</h2>
-
-<p>This form runs a hypothetical permission check and returns its raw explanation JSON. Use the <a href="{{ urls.path('-/check') }}">Explain tool</a> for a visual explanation of the same decision.</p>
+<p>This tool lets you simulate an actor and a permission check for that actor.</p>
 
 <div class="permission-form">
     <form action="{{ urls.path('-/permissions') }}" id="debug-post" method="post">
-        <div class="permission-form-grid">
-            <div>
-                <div class="form-section">
-                    <label for="activity-actor">Actor</label>
-                    <textarea class="permission-textarea" id="activity-actor" name="actor">{% if actor_input %}{{ actor_input }}{% else %}{"id": "root"}{% endif %}</textarea>
-                </div>
+        <div class="two-col">
+            <div class="form-section">
+                <label>Actor</label>
+                <textarea name="actor">{% if actor_input %}{{ actor_input }}{% else %}{"id": "root"}{% endif %}</textarea>
             </div>
-            <div>
-                <div class="form-section">
-                    <label for="permission">Action</label>
-                    <select name="permission" id="permission">
-                        {% for permission in permissions %}
-                            <option value="{{ permission.name }}">{{ permission.name }}</option>
-                        {% endfor %}
-                    </select>
-                </div>
-                <div class="form-section">
-                    <label for="resource_1">Parent</label>
-                    <input type="text" id="resource_1" name="resource_1" placeholder="e.g., database name">
-                </div>
-                <div class="form-section">
-                    <label for="resource_2">Child</label>
-                    <input type="text" id="resource_2" name="resource_2" placeholder="e.g., table name">
-                </div>
+        </div>
+        <div class="two-col" style="vertical-align: top">
+            <div class="form-section">
+                <label for="permission">Action</label>
+                <select name="permission" id="permission">
+                    {% for permission in permissions %}
+                        <option value="{{ permission.name }}">{{ permission.name }}</option>
+                    {% endfor %}
+                </select>
+            </div>
+            <div class="form-section">
+                <label for="resource_1">Parent</label>
+                <input type="text" id="resource_1" name="resource_1" placeholder="e.g., database name">
+            </div>
+            <div class="form-section">
+                <label for="resource_2">Child</label>
+                <input type="text" id="resource_2" name="resource_2" placeholder="e.g., table name">
             </div>
         </div>
         <div class="form-actions">
@@ -110,7 +125,7 @@ debugPost.addEventListener('submit', function(ev) {
 });
 </script>
 
-<h2>Recent permission checks</h2>
+<h1>Recent permissions checks</h1>
 
 <p>
     {% if filter != "all" %}<a href="?filter=all">All</a>{% else %}<strong>All</strong>{% endif %},

datasette/templates/debug_rules.html

@@ -3,6 +3,7 @@
 {% block title %}Permission Rules{% endblock %}
 
 {% block extra_head %}
+<script src="{{ static('json-format-highlight-1.0.1.js') }}"></script>
 {% include "_permission_ui_styles.html" %}
 {% include "_debug_common_functions.html" %}
 {% endblock %}
@@ -36,7 +37,7 @@
 
         <div class="form-section">
             <label for="page_size">Page size:</label>
-            <input type="number" id="page_size" name="_size" value="50" min="1" max="200">
+            <input type="number" id="page_size" name="page_size" value="50" min="1" max="200" style="max-width: 100px;">
             <small>Number of results per page (max 200)</small>
         </div>
 
@@ -74,7 +75,7 @@ const submitBtn = document.getElementById('submit-btn');
 (function() {
     const params = populateFormFromURL();
     const action = params.get('action');
-    const page = params.get('_page');
+    const page = params.get('page');
     if (action) {
         fetchResults(page ? parseInt(page) : 1);
     }
@@ -88,14 +89,14 @@ async function fetchResults(page = 1) {
     const params = new URLSearchParams();
 
     for (const [key, value] of formData.entries()) {
-        if (value && key !== '_size' && key !== '_page') {
+        if (value && key !== 'page_size') {
             params.append(key, value);
         }
     }
 
     const pageSize = document.getElementById('page_size').value || '50';
-    params.append('_page', page.toString());
-    params.append('_size', pageSize);
+    params.append('page', page.toString());
+    params.append('page_size', pageSize);
 
     try {
         const response = await fetch('{{ urls.path("-/rules.json") }}?' + params.toString(), {
@@ -184,7 +185,7 @@ function displayResults(data) {
     }
 
     // Update raw JSON
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
 }
 
 function displayError(data) {
@@ -194,7 +195,7 @@ function displayError(data) {
 
     resultsContent.innerHTML = `<div class="error-message">Error: ${escapeHtml(data.error || 'Unknown error')}</div>`;
 
-    document.getElementById('raw-json').textContent = JSON.stringify(data, null, 2);
+    document.getElementById('raw-json').innerHTML = jsonFormatHighlight(data);
 }
 
 </script>

datasette/tokens.py

@@ -10,7 +10,7 @@ from __future__ import annotations
 
 import dataclasses
 import time
-from typing import TYPE_CHECKING
+from typing import TYPE_CHECKING, Optional
 
 import itsdangerous
 
@@ -18,21 +18,6 @@ if TYPE_CHECKING:
     from datasette.app import Datasette
 
 
-class TokenInvalid(Exception):
-    """
-    Raised by a TokenHandler when a token it recognizes is invalid -
-    for example a bad signature, malformed payload or expired token.
-
-    Datasette responds to this with an HTTP 401 error. Handlers should
-    return None instead for tokens they do not recognize at all, so that
-    other registered handlers get a chance to verify them.
-    """
-
-    def __init__(self, message="Invalid token"):
-        self.message = message
-        super().__init__(message)
-
-
 @dataclasses.dataclass
 class TokenRestrictions:
     """
@@ -50,24 +35,24 @@ class TokenRestrictions:
     database: dict[str, list[str]] = dataclasses.field(default_factory=dict)
     resource: dict[str, dict[str, list[str]]] = dataclasses.field(default_factory=dict)
 
-    def allow_all(self, action: str) -> TokenRestrictions:
+    def allow_all(self, action: str) -> "TokenRestrictions":
         """Allow an action across all databases and resources."""
         self.all.append(action)
         return self
 
-    def allow_database(self, database: str, action: str) -> TokenRestrictions:
+    def allow_database(self, database: str, action: str) -> "TokenRestrictions":
         """Allow an action on a specific database."""
         self.database.setdefault(database, []).append(action)
         return self
 
     def allow_resource(
         self, database: str, resource: str, action: str
-    ) -> TokenRestrictions:
+    ) -> "TokenRestrictions":
         """Allow an action on a specific resource within a database."""
         self.resource.setdefault(database, {}).setdefault(resource, []).append(action)
         return self
 
-    def abbreviated(self, datasette: Datasette) -> dict | None:
+    def abbreviated(self, datasette: "Datasette") -> Optional[dict]:
         """
         Return the abbreviated ``_r`` dictionary shape for this set of
         restrictions, using action abbreviations registered with ``datasette``.
@@ -112,23 +97,19 @@ class TokenHandler:
 
     async def create_token(
         self,
-        datasette: Datasette,
+        datasette: "Datasette",
         actor_id: str,
         *,
-        expires_after: int | None = None,
-        restrictions: TokenRestrictions | None = None,
+        expires_after: Optional[int] = None,
+        restrictions: Optional[TokenRestrictions] = None,
     ) -> str:
         """Create and return a token string for the given actor."""
         raise NotImplementedError
 
-    async def verify_token(self, datasette: Datasette, token: str) -> dict | None:
+    async def verify_token(self, datasette: "Datasette", token: str) -> Optional[dict]:
         """
-        Verify a token and return an actor dict.
-
-        Return None if this handler does not recognize the token at all,
-        so other handlers can try it. Raise TokenInvalid if the token is
-        recognized but invalid (bad signature, malformed, expired) - the
-        request will fail with a 401 error.
+        Verify a token and return an actor dict, or None if this handler
+        does not recognize the token.
         """
         raise NotImplementedError
 
@@ -142,11 +123,11 @@ class SignedTokenHandler(TokenHandler):
 
     async def create_token(
         self,
-        datasette: Datasette,
+        datasette: "Datasette",
         actor_id: str,
         *,
-        expires_after: int | None = None,
-        restrictions: TokenRestrictions | None = None,
+        expires_after: Optional[int] = None,
+        restrictions: Optional[TokenRestrictions] = None,
     ) -> str:
         if not datasette.setting("allow_signed_tokens"):
             raise ValueError(
@@ -163,35 +144,32 @@ class SignedTokenHandler(TokenHandler):
                 token["_r"] = abbreviated
         return "dstok_{}".format(datasette.sign(token, namespace="token"))
 
-    async def verify_token(self, datasette: Datasette, token: str) -> dict | None:
+    async def verify_token(self, datasette: "Datasette", token: str) -> Optional[dict]:
         prefix = "dstok_"
 
-        if not token.startswith(prefix):
-            # Not one of our tokens - leave it for other handlers
+        if not datasette.setting("allow_signed_tokens"):
             return None
 
-        if not datasette.setting("allow_signed_tokens"):
-            raise TokenInvalid(
-                "Signed tokens are not enabled for this Datasette instance"
-            )
-
         max_signed_tokens_ttl = datasette.setting("max_signed_tokens_ttl")
 
+        if not token.startswith(prefix):
+            return None
+
         raw = token[len(prefix) :]
         try:
             decoded = datasette.unsign(raw, namespace="token")
         except itsdangerous.BadSignature:
-            raise TokenInvalid("Invalid token signature")
+            return None
 
         if "t" not in decoded:
-            raise TokenInvalid("Invalid token: no timestamp")
+            return None
         created = decoded["t"]
         if not isinstance(created, int):
-            raise TokenInvalid("Invalid token: invalid timestamp")
+            return None
 
         duration = decoded.get("d")
         if duration is not None and not isinstance(duration, int):
-            raise TokenInvalid("Invalid token: invalid duration")
+            return None
 
         if (duration is None and max_signed_tokens_ttl) or (
             duration is not None
@@ -200,8 +178,9 @@ class SignedTokenHandler(TokenHandler):
         ):
             duration = max_signed_tokens_ttl
 
-        if duration and time.time() - created > duration:
-            raise TokenInvalid("Token has expired")
+        if duration:
+            if time.time() - created > duration:
+                return None
 
         actor = {"id": decoded["a"], "token": "dstok"}
 

datasette/tracer.py

@@ -1,11 +1,10 @@
 import asyncio
-import json
-import time
-import traceback
 from contextlib import contextmanager
 from contextvars import ContextVar
-
 from markupsafe import escape
+import time
+import json
+import traceback
 
 tracers = {}
 
@@ -133,17 +132,17 @@ class AsgiTracer:
                     "num_traces": len(traces),
                     "traces": traces,
                 }
-                content_type = next(
-                    (
+                try:
+                    content_type = [
                         v.decode("utf8")
                         for k, v in response_headers
                         if k.lower() == b"content-type"
-                    ),
-                    "",
-                )
+                    ][0]
+                except IndexError:
+                    content_type = ""
                 if "text/html" in content_type and b"</body>" in accumulated_body:
                     extra = escape(json.dumps(trace_info, indent=2))
-                    extra_html = f"<pre>{extra}</pre></body>".encode()
+                    extra_html = f"<pre>{extra}</pre></body>".encode("utf8")
                     accumulated_body = accumulated_body.replace(b"</body>", extra_html)
                 elif "json" in content_type and accumulated_body.startswith(b"{"):
                     data = json.loads(accumulated_body.decode("utf8"))

datasette/url_builder.py

@@ -1,7 +1,6 @@
+from .utils import tilde_encode, path_with_format, PrefixedUrlString
 import urllib
 
-from .utils import PrefixedUrlString, path_with_format, tilde_encode
-
 
 class Urls:
     def __init__(self, ds):
@@ -9,7 +8,8 @@ class Urls:
 
     def path(self, path, format=None):
         if not isinstance(path, PrefixedUrlString):
-            path = path.removeprefix("/")
+            if path.startswith("/"):
+                path = path[1:]
             path = self.ds.setting("base_url") + path
         if format is not None:
             path = path_with_format(path=path, format=format)
@@ -56,7 +56,6 @@ class Urls:
         return PrefixedUrlString(path)
 
     def row_blob(self, database, table, row_path, column):
-        return (
-            self.table(database, table)
-            + f"/{row_path}.blob?_blob_column={urllib.parse.quote_plus(column)}"
+        return self.table(database, table) + "/{}.blob?_blob_column={}".format(
+            row_path, urllib.parse.quote_plus(column)
         )

datasette/utils/__init__.py

@@ -1,31 +1,28 @@
 import asyncio
-import base64
-import binascii
+from contextlib import contextmanager
+import aiofiles
+import click
+from collections import OrderedDict, namedtuple, Counter
 import copy
 import dataclasses
+import base64
 import hashlib
 import inspect
 import json
-import os
-import re
-import secrets
-import shlex
-import shutil
-import tempfile
-import time
-import types
-import typing
-import urllib
-from collections import Counter, OrderedDict, namedtuple
-from collections.abc import Iterable
-from contextlib import contextmanager
-
-import aiofiles
-import click
 import markupsafe
 import mergedeep
+import os
+import re
+import shlex
+import tempfile
+import typing
+import time
+import types
+import secrets
+import shutil
+from typing import Iterable, List, Tuple
+import urllib
 import yaml
-
 from .shutil_backport import copytree
 from .sqlite import sqlite3, supports_table_xinfo
 
@@ -38,7 +35,7 @@ if typing.TYPE_CHECKING:
 class PaginatedResources:
     """Paginated results from allowed_resources query."""
 
-    resources: list["Resource"]
+    resources: List["Resource"]
     next: str | None  # Keyset token for next page (None if no more results)
     _datasette: typing.Any = dataclasses.field(default=None, repr=False)
     _action: str = dataclasses.field(default=None, repr=False)
@@ -85,132 +82,22 @@ class PaginatedResources:
 
 
 # From https://www.sqlite.org/lang_keywords.html
-reserved_words = {
-    "abort",
-    "action",
-    "add",
-    "after",
-    "all",
-    "alter",
-    "analyze",
-    "and",
-    "as",
-    "asc",
-    "attach",
-    "autoincrement",
-    "before",
-    "begin",
-    "between",
-    "by",
-    "cascade",
-    "case",
-    "cast",
-    "check",
-    "collate",
-    "column",
-    "commit",
-    "conflict",
-    "constraint",
-    "create",
-    "cross",
-    "current_date",
-    "current_time",
-    "current_timestamp",
-    "database",
-    "default",
-    "deferrable",
-    "deferred",
-    "delete",
-    "desc",
-    "detach",
-    "distinct",
-    "drop",
-    "each",
-    "else",
-    "end",
-    "escape",
-    "except",
-    "exclusive",
-    "exists",
-    "explain",
-    "fail",
-    "for",
-    "foreign",
-    "from",
-    "full",
-    "glob",
-    "group",
-    "having",
-    "if",
-    "ignore",
-    "immediate",
-    "in",
-    "index",
-    "indexed",
-    "initially",
-    "inner",
-    "insert",
-    "instead",
-    "intersect",
-    "into",
-    "is",
-    "isnull",
-    "join",
-    "key",
-    "left",
-    "like",
-    "limit",
-    "match",
-    "natural",
-    "no",
-    "not",
-    "notnull",
-    "null",
-    "of",
-    "offset",
-    "on",
-    "or",
-    "order",
-    "outer",
-    "plan",
-    "pragma",
-    "primary",
-    "query",
-    "raise",
-    "recursive",
-    "references",
-    "regexp",
-    "reindex",
-    "release",
-    "rename",
-    "replace",
-    "restrict",
-    "right",
-    "rollback",
-    "row",
-    "savepoint",
-    "select",
-    "set",
-    "table",
-    "temp",
-    "temporary",
-    "then",
-    "to",
-    "transaction",
-    "trigger",
-    "union",
-    "unique",
-    "update",
-    "using",
-    "vacuum",
-    "values",
-    "view",
-    "virtual",
-    "when",
-    "where",
-    "with",
-    "without",
-}
+reserved_words = set(
+    (
+        "abort action add after all alter analyze and as asc attach autoincrement "
+        "before begin between by cascade case cast check collate column commit "
+        "conflict constraint create cross current_date current_time "
+        "current_timestamp database default deferrable deferred delete desc detach "
+        "distinct drop each else end escape except exclusive exists explain fail "
+        "for foreign from full glob group having if ignore immediate in index "
+        "indexed initially inner insert instead intersect into is isnull join key "
+        "left like limit match natural no not notnull null of offset on or order "
+        "outer plan pragma primary query raise recursive references regexp reindex "
+        "release rename replace restrict right rollback row savepoint select set "
+        "table temp temporary then to transaction trigger union unique update using "
+        "vacuum values view virtual when where with without"
+    ).split()
+)
 
 APT_GET_DOCKERFILE_EXTRAS = r"""
 RUN apt-get update && \
@@ -270,7 +157,7 @@ functions_marked_as_documented = []
 
 def documented(fn=None, *, label=None):
     def decorate(fn):
-        fn._datasette_docs_label = label or f"internals_utils_{fn.__name__}"
+        fn._datasette_docs_label = label or "internals_utils_{}".format(fn.__name__)
         functions_marked_as_documented.append(fn)
         return fn
 
@@ -349,8 +236,10 @@ class CustomJSONEncoder(json.JSONEncoder):
     - ``sqlite3.Row`` becomes a tuple
     - ``sqlite3.Cursor`` becomes a list
 
-    Binary blobs are encoded as an object, with the actual data base64-encoded,
-    like so: ::
+    If a binary blob can be decoded as UTF-8, the encoder returns it as text.
+
+    If it can't (for example, images), it is encoded as an object, with the actual
+    data base64-encoded, like so: ::
 
         {
             "$base64": True,
@@ -366,42 +255,17 @@ class CustomJSONEncoder(json.JSONEncoder):
         if isinstance(obj, sqlite3.Cursor):
             return list(obj)
         if isinstance(obj, bytes):
-            return {
-                "$base64": True,
-                "encoded": base64.b64encode(obj).decode("latin1"),
-            }
+            # Does it encode to utf8?
+            try:
+                return obj.decode("utf8")
+            except UnicodeDecodeError:
+                return {
+                    "$base64": True,
+                    "encoded": base64.b64encode(obj).decode("latin1"),
+                }
         return json.JSONEncoder.default(self, obj)
 
 
-class WriteJsonValueError(ValueError):
-    pass
-
-
-def decode_write_json_cell(value):
-    if not isinstance(value, dict):
-        return value
-    keys = set(value.keys())
-    if keys == {"$raw"}:
-        return value["$raw"]
-    if keys == {"$base64", "encoded"} and value.get("$base64") is True:
-        encoded = value["encoded"]
-        if not isinstance(encoded, str):
-            raise WriteJsonValueError("$base64 encoded value must be a string")
-        try:
-            return base64.b64decode(encoded, validate=True)
-        except binascii.Error as ex:
-            raise WriteJsonValueError("Invalid $base64 encoded value") from ex
-    return value
-
-
-def decode_write_json_row(row):
-    return {key: decode_write_json_cell(value) for key, value in row.items()}
-
-
-def decode_write_json_rows(rows):
-    return [decode_write_json_row(row) for row in rows]
-
-
 @contextmanager
 def sqlite_timelimit(conn, ms):
     deadline = time.perf_counter() + (ms / 1000)
@@ -472,7 +336,7 @@ disallawed_sql_res = [
     (
         re.compile(f"pragma(?!_({'|'.join(allowed_pragmas)}))"),
         "Statement contained a disallowed PRAGMA. Allowed pragma functions are {}".format(
-            ", ".join(f"pragma_{pragma}()" for pragma in allowed_pragmas)
+            ", ".join("pragma_{}()".format(pragma) for pragma in allowed_pragmas)
         ),
     )
 ]
@@ -646,7 +510,10 @@ CMD {cmd}""".format(
             else ""
         ),
         environment_variables="\n".join(
-            [f"ENV {key} '{value}'" for key, value in environment_variables.items()]
+            [
+                "ENV {} '{}'".format(key, value)
+                for key, value in environment_variables.items()
+            ]
         ),
         install_from=" ".join(install),
         files=" ".join(files),
@@ -745,11 +612,11 @@ def detect_primary_keys(conn, table):
 
 
 def get_outbound_foreign_keys(conn, table):
-    infos = conn.execute(f"PRAGMA foreign_key_list({escape_sqlite(table)})").fetchall()
+    infos = conn.execute(f"PRAGMA foreign_key_list([{table}])").fetchall()
     fks = []
     for info in infos:
         if info is not None:
-            id, seq, table_name, from_, to_, _on_update, _on_delete, _match = info
+            id, seq, table_name, from_, to_, on_update, on_delete, match = info
             fks.append(
                 {
                     "column": from_,
@@ -820,8 +687,7 @@ def detect_spatialite(conn):
 
 def detect_fts(conn, table):
     """Detect if table has a corresponding FTS virtual table and return it"""
-    sql, params = detect_fts_sql(table)
-    rows = conn.execute(sql, params).fetchall()
+    rows = conn.execute(detect_fts_sql(table)).fetchall()
     if len(rows) == 0:
         return None
     else:
@@ -829,26 +695,18 @@ def detect_fts(conn, table):
 
 
 def detect_fts_sql(table):
-    escaped_table = table.replace("\\", "\\\\").replace("%", "\\%").replace("_", "\\_")
-    return (
-        r"""
-            select name from sqlite_master
-                where rootpage = 0
-                and (
-                    sql like :fts_double_quoted escape char(92)
-                    or sql like :fts_bracket_quoted escape char(92)
-                    or (
-                        tbl_name = :table
-                        and sql like '%VIRTUAL TABLE%USING FTS%'
-                    )
+    return r"""
+        select name from sqlite_master
+            where rootpage = 0
+            and (
+                sql like '%VIRTUAL TABLE%USING FTS%content="{table}"%'
+                or sql like '%VIRTUAL TABLE%USING FTS%content=[{table}]%'
+                or (
+                    tbl_name = "{table}"
+                    and sql like '%VIRTUAL TABLE%USING FTS%'
                 )
-        """,
-        {
-            "fts_double_quoted": f'%VIRTUAL TABLE%USING FTS%content="{escaped_table}"%',
-            "fts_bracket_quoted": f"%VIRTUAL TABLE%USING FTS%content=[{escaped_table}]%",
-            "table": table,
-        },
-    )
+            )
+    """.format(table=table.replace("'", "''"))
 
 
 def detect_json1(conn=None):
@@ -859,7 +717,7 @@ def detect_json1(conn=None):
     try:
         conn.execute("SELECT json('{}')")
         return True
-    except sqlite3.Error:
+    except Exception:
         return False
     finally:
         if close_conn:
@@ -939,7 +797,9 @@ def is_url(value):
     if not value.startswith("http://") and not value.startswith("https://"):
         return False
     # Any whitespace at all is invalid
-    return not whitespace_re.search(value)
+    if whitespace_re.search(value):
+        return False
+    return True
 
 
 css_class_re = re.compile(r"^[a-zA-Z]+[_a-zA-Z0-9-]*$")
@@ -992,9 +852,7 @@ def module_from_path(path, name):
     mod.__file__ = path
     with open(path, "r") as file:
         code = compile(file.read(), path, "exec", dont_inherit=True)
-    # Executing the file is the whole point - this is how --plugins-dir loads
-    # plugins and how metadata/config .py files are evaluated
-    exec(code, mod.__dict__)  # noqa: S102
+    exec(code, mod.__dict__)
     return mod
 
 
@@ -1151,7 +1009,9 @@ def escape_fts(query):
         query += '"'
     bits = _escape_fts_re.split(query)
     bits = [b for b in bits if b and b != '""']
-    return " ".join(f'"{bit}"' if not bit.startswith('"') else bit for bit in bits)
+    return " ".join(
+        '"{}"'.format(bit) if not bit.startswith('"') else bit for bit in bits
+    )
 
 
 class MultiParams:
@@ -1163,7 +1023,7 @@ class MultiParams:
                     data[key], (list, tuple)
                 ), "dictionary data should be a dictionary of key => [list]"
             self._data = data
-        elif isinstance(data, (list, tuple)):
+        elif isinstance(data, list) or isinstance(data, tuple):
             new_data = {}
             for item in data:
                 assert (
@@ -1253,7 +1113,9 @@ def _gather_arguments(fn, kwargs):
     for parameter in parameters:
         if parameter not in kwargs:
             raise TypeError(
-                f"{fn} requires parameters {tuple(parameters)}, missing: {set(parameters) - set(kwargs.keys())}"
+                "{} requires parameters {}, missing: {}".format(
+                    fn, tuple(parameters), set(parameters) - set(kwargs.keys())
+                )
             )
         call_with.append(kwargs[parameter])
     return call_with
@@ -1322,9 +1184,9 @@ def resolve_env_secrets(config, environ):
     """Create copy that recursively replaces {"$env": "NAME"} with values from environ"""
     if isinstance(config, dict):
         if list(config.keys()) == ["$env"]:
-            return environ.get(next(iter(config.values())))
+            return environ.get(list(config.values())[0])
         elif list(config.keys()) == ["$file"]:
-            with open(next(iter(config.values()))) as fp:
+            with open(list(config.values())[0]) as fp:
                 return fp.read()
         else:
             return {
@@ -1402,38 +1264,29 @@ class StartupError(Exception):
     pass
 
 
-# Comments and string literals, matched in a single pass so that whichever
-# construct starts first "wins" - this ensures a comment marker inside a string
-# literal (or a quote inside a comment) does not confuse the parameter scan.
-_comments_and_strings_re = re.compile(
-    r"""
-    --[^\n]*            # single line comment
-    | /\*.*?(?:\*/|\Z)  # multi line comment, possibly to end-of-input
-    | '(?:''|[^'])*'    # single quoted string ('' escapes a quote)
-    | "(?:""|[^"])*"    # double quoted identifier ("" escapes a quote)
-    | \[(?:[^\]])*\]    # square-bracket quoted identifier
-    | `(?:``|[^`])*`    # backtick quoted identifier
-    """,
-    re.DOTALL | re.VERBOSE,
-)
+_single_line_comment_re = re.compile(r"--.*")
+_multi_line_comment_re = re.compile(r"/\*.*?\*/", re.DOTALL)
+_single_quote_re = re.compile(r"'(?:''|[^'])*'")
+_double_quote_re = re.compile(r'"(?:\"\"|[^"])*"')
 _named_param_re = re.compile(r":(\w+)")
 
 
 @documented
-def named_parameters(sql: str) -> list[str]:
+def named_parameters(sql: str) -> List[str]:
     """
     Given a SQL statement, return a list of named parameters that are used in the statement
 
     e.g. for ``select * from foo where id=:id`` this would return ``["id"]``
     """
-    # Strip comments and string literals first so that any ":name" sequences
-    # inside them are not mistaken for named parameters
-    sql = _comments_and_strings_re.sub("", sql)
+    sql = _single_line_comment_re.sub("", sql)
+    sql = _multi_line_comment_re.sub("", sql)
+    sql = _single_quote_re.sub("", sql)
+    sql = _double_quote_re.sub("", sql)
     # Extract parameters from what is left
     return _named_param_re.findall(sql)
 
 
-async def derive_named_parameters(db: "Database", sql: str) -> list[str]:
+async def derive_named_parameters(db: "Database", sql: str) -> List[str]:
     """
     This undocumented but stable method exists for backwards compatibility
     with plugins that were using it before it switched to named_parameters()
@@ -1441,54 +1294,6 @@ async def derive_named_parameters(db: "Database", sql: str) -> list[str]:
     return named_parameters(sql)
 
 
-def parse_size_limit(value, default, maximum, name="_size"):
-    """
-    Parse a page-size parameter using the same semantics as the table
-    view's ?_size=: blank means default, "max" means maximum, integers
-    must be 0 or greater and no larger than maximum. Raises ValueError
-    with a message suitable for a 400 response.
-    """
-    if value in (None, ""):
-        return default
-    if value == "max":
-        return maximum
-    try:
-        size = int(value)
-        if size < 0:
-            raise ValueError
-    except ValueError:
-        raise ValueError(f"{name} must be a positive integer")
-    if size > maximum:
-        raise ValueError(f"{name} must be <= {maximum}")
-    return size
-
-
-UNSTABLE_API_MESSAGE = (
-    "This API is not part of Datasette's stable interface and may change at any time"
-)
-
-
-def error_body(messages, status):
-    """
-    The canonical JSON error body used by every Datasette JSON error response:
-
-        {"ok": False, "error": "...", "errors": ["...", ...], "status": 400}
-
-    "error" is all of the messages joined with "; ", "errors" is the full
-    list, "status" matches the HTTP status code. Callers may add extra
-    context keys to the returned dictionary but must not remove these four.
-    """
-    if isinstance(messages, str):
-        messages = [messages]
-    messages = [str(message) for message in messages]
-    return {
-        "ok": False,
-        "error": "; ".join(messages),
-        "errors": messages,
-        "status": status,
-    }
-
-
 def add_cors_headers(headers):
     headers["Access-Control-Allow-Origin"] = "*"
     headers["Access-Control-Allow-Headers"] = "Authorization, Content-Type"
@@ -1517,7 +1322,7 @@ class TildeEncoder(dict):
         elif b == _space:
             res = "+"
         else:
-            res = f"~{b:02X}"
+            res = "~{:02X}".format(b)
         self[b] = res
         return res
 
@@ -1566,13 +1371,7 @@ async def row_sql_params_pks(db, table, pk_values):
     if use_rowid:
         select = "rowid, *"
         pks = ["rowid"]
-    wheres = []
-    for i, pk in enumerate(pks):
-        escaped_pk = escape_sqlite(pk)
-        # Preserve the historic always-quoted SQL exposed by _extra=query
-        if escaped_pk == pk:
-            escaped_pk = f'"{pk}"'
-        wheres.append(f"{escaped_pk}=:p{i}")
+    wheres = [f'"{pk}"=:p{i}' for i, pk in enumerate(pks)]
     sql = f"select {select} from {escape_sqlite(table)} where {' AND '.join(wheres)}"
     params = {}
     for i, pk_value in enumerate(pk_values):
@@ -1618,7 +1417,7 @@ def _combine(base: dict, update: dict) -> dict:
     return base
 
 
-def pairs_to_nested_config(pairs: list[tuple[str, typing.Any]]) -> dict:
+def pairs_to_nested_config(pairs: typing.List[typing.Tuple[str, typing.Any]]) -> dict:
     """
     Parse a list of key-value pairs into a nested dictionary.
     """
@@ -1633,7 +1432,7 @@ def make_slot_function(name, datasette, request, **kwargs):
     from datasette.plugins import pm
 
     method = getattr(pm.hook, name, None)
-    assert method is not None, f"No hook found for {name}"
+    assert method is not None, "No hook found for {}".format(name)
 
     async def inner():
         html_bits = []
@@ -1657,7 +1456,7 @@ def prune_empty_dicts(d: dict):
                 d.pop(key, None)
 
 
-def move_plugins_and_allow(source: dict, destination: dict) -> tuple[dict, dict]:
+def move_plugins_and_allow(source: dict, destination: dict) -> Tuple[dict, dict]:
     """
     Move 'plugins' and 'allow' keys from source to destination dictionary. Creates
     hierarchy in destination if needed. After moving, recursively remove any keys
@@ -1744,7 +1543,7 @@ def redact_keys(original: dict, key_patterns: Iterable) -> dict:
             return {
                 k: (
                     redact(v)
-                    if not any(pattern in k.casefold() for pattern in key_patterns)
+                    if not any(pattern in k for pattern in key_patterns)
                     else "***"
                 )
                 for k, v in data.items()

datasette/utils/actions_sql.py

@@ -29,15 +29,6 @@ from datasette.utils.permissions import gather_permission_sql_from_hooks
 
 if TYPE_CHECKING:
     from datasette.app import Datasette
-    from datasette.permissions import Action
-
-
-def _child_collation(action: "Action") -> str:
-    """Match resource identity without changing the spelling returned by SQL."""
-    resource_class = action.resource_class
-    if resource_class is not None and resource_class.case_insensitive_child:
-        return "NOCASE"
-    return "BINARY"
 
 
 async def build_allowed_resources_sql(
@@ -158,7 +149,6 @@ async def _build_single_action_sql(
         raise ValueError(f"Unknown action: {action}")
 
     # Get base resources SQL from the resource class
-    child_collation = _child_collation(action_obj)
     base_resources_sql = await action_obj.resource_class.resources_sql(
         datasette, actor=actor
     )
@@ -195,7 +185,7 @@ async def _build_single_action_sql(
         if permission_sql.sql is None:
             continue
         rule_sqls.append(f"""
-            SELECT parent, child COLLATE {child_collation} AS child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (
+            SELECT parent, child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (
                 {permission_sql.sql}
             )
             """.strip())
@@ -262,62 +252,88 @@ async def _build_single_action_sql(
                 ]
             )
 
-    # Continue with the cascading logic.
-    # Aggregate the RULES by cascade level (small), rather than grouping
-    # base x rules (which scales with the number of resources).
-    def _agg(select_key, where, group_by):
-        parts = [
-            f"  SELECT {select_key}",
-            "         MAX(CASE WHEN allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
-            "         MAX(CASE WHEN allow = 1 THEN 1 ELSE 0 END) AS any_allow,",
-            "         json_group_array(CASE WHEN allow = 0 THEN source_plugin || ': ' || reason END) AS deny_reasons,",
-            "         json_group_array(CASE WHEN allow = 1 THEN source_plugin || ': ' || reason END) AS allow_reasons",
-            f"  FROM all_rules WHERE {where}",
-        ]
-        if group_by:
-            parts.append(f"  GROUP BY {group_by}")
-        return parts
-
+    # Continue with the cascading logic
     query_parts.extend(
-        ["child_agg AS ("]
-        + _agg(
-            "parent, child,",
-            "parent IS NOT NULL AND child IS NOT NULL",
-            "parent, child",
-        )
-        + ["),", "parent_agg AS ("]
-        + _agg("parent,", "parent IS NOT NULL AND child IS NULL", "parent")
-        + ["),", "global_agg AS ("]
-        + _agg("", "parent IS NULL AND child IS NULL", None)
-        + ["),"]
+        [
+            "child_lvl AS (",
+            "  SELECT b.parent, b.child,",
+            "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+            "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow,",
+            "         json_group_array(CASE WHEN ar.allow = 0 THEN ar.source_plugin || ': ' || ar.reason END) AS deny_reasons,",
+            "         json_group_array(CASE WHEN ar.allow = 1 THEN ar.source_plugin || ': ' || ar.reason END) AS allow_reasons",
+            "  FROM base b",
+            "  LEFT JOIN all_rules ar ON ar.parent = b.parent AND ar.child = b.child",
+            "  GROUP BY b.parent, b.child",
+            "),",
+            "parent_lvl AS (",
+            "  SELECT b.parent, b.child,",
+            "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+            "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow,",
+            "         json_group_array(CASE WHEN ar.allow = 0 THEN ar.source_plugin || ': ' || ar.reason END) AS deny_reasons,",
+            "         json_group_array(CASE WHEN ar.allow = 1 THEN ar.source_plugin || ': ' || ar.reason END) AS allow_reasons",
+            "  FROM base b",
+            "  LEFT JOIN all_rules ar ON ar.parent = b.parent AND ar.child IS NULL",
+            "  GROUP BY b.parent, b.child",
+            "),",
+            "global_lvl AS (",
+            "  SELECT b.parent, b.child,",
+            "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+            "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow,",
+            "         json_group_array(CASE WHEN ar.allow = 0 THEN ar.source_plugin || ': ' || ar.reason END) AS deny_reasons,",
+            "         json_group_array(CASE WHEN ar.allow = 1 THEN ar.source_plugin || ': ' || ar.reason END) AS allow_reasons",
+            "  FROM base b",
+            "  LEFT JOIN all_rules ar ON ar.parent IS NULL AND ar.child IS NULL",
+            "  GROUP BY b.parent, b.child",
+            "),",
+        ]
     )
 
     # Add anonymous decision logic if needed
     if include_is_private:
-
-        def _anon_agg(select_key, where, group_by):
-            parts = [
-                f"  SELECT {select_key}",
-                "         MAX(CASE WHEN allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
-                "         MAX(CASE WHEN allow = 1 THEN 1 ELSE 0 END) AS any_allow",
-                f"  FROM anon_rules WHERE {where}",
-            ]
-            if group_by:
-                parts.append(f"  GROUP BY {group_by}")
-            return parts
-
         query_parts.extend(
-            ["anon_child_agg AS ("]
-            + _anon_agg(
-                f"parent, child COLLATE {child_collation} AS child,",
-                "parent IS NOT NULL AND child IS NOT NULL",
-                f"parent, child COLLATE {child_collation}",
-            )
-            + ["),", "anon_parent_agg AS ("]
-            + _anon_agg("parent,", "parent IS NOT NULL AND child IS NULL", "parent")
-            + ["),", "anon_global_agg AS ("]
-            + _anon_agg("", "parent IS NULL AND child IS NULL", None)
-            + ["),"]
+            [
+                "anon_child_lvl AS (",
+                "  SELECT b.parent, b.child,",
+                "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+                "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow",
+                "  FROM base b",
+                "  LEFT JOIN anon_rules ar ON ar.parent = b.parent AND ar.child = b.child",
+                "  GROUP BY b.parent, b.child",
+                "),",
+                "anon_parent_lvl AS (",
+                "  SELECT b.parent, b.child,",
+                "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+                "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow",
+                "  FROM base b",
+                "  LEFT JOIN anon_rules ar ON ar.parent = b.parent AND ar.child IS NULL",
+                "  GROUP BY b.parent, b.child",
+                "),",
+                "anon_global_lvl AS (",
+                "  SELECT b.parent, b.child,",
+                "         MAX(CASE WHEN ar.allow = 0 THEN 1 ELSE 0 END) AS any_deny,",
+                "         MAX(CASE WHEN ar.allow = 1 THEN 1 ELSE 0 END) AS any_allow",
+                "  FROM base b",
+                "  LEFT JOIN anon_rules ar ON ar.parent IS NULL AND ar.child IS NULL",
+                "  GROUP BY b.parent, b.child",
+                "),",
+                "anon_decisions AS (",
+                "  SELECT",
+                "    b.parent, b.child,",
+                "    CASE",
+                "      WHEN acl.any_deny = 1 THEN 0",
+                "      WHEN acl.any_allow = 1 THEN 1",
+                "      WHEN apl.any_deny = 1 THEN 0",
+                "      WHEN apl.any_allow = 1 THEN 1",
+                "      WHEN agl.any_deny = 1 THEN 0",
+                "      WHEN agl.any_allow = 1 THEN 1",
+                "      ELSE 0",
+                "    END AS anon_is_allowed",
+                "  FROM base b",
+                "  JOIN anon_child_lvl acl ON b.parent = acl.parent AND (b.child = acl.child OR (b.child IS NULL AND acl.child IS NULL))",
+                "  JOIN anon_parent_lvl apl ON b.parent = apl.parent AND (b.child = apl.child OR (b.child IS NULL AND apl.child IS NULL))",
+                "  JOIN anon_global_lvl agl ON b.parent = agl.parent AND (b.child = agl.child OR (b.child IS NULL AND agl.child IS NULL))",
+                "),",
+            ]
         )
 
     # Final decisions
@@ -326,28 +342,31 @@ async def _build_single_action_sql(
             "decisions AS (",
             "  SELECT",
             "    b.parent, b.child,",
-            "    -- Cascading permission logic: child -> parent -> global, DENY beats ALLOW at each level",
+            "    -- Cascading permission logic: child → parent → global, DENY beats ALLOW at each level",
             "    -- Priority order:",
-            "    --   1. Child-level deny  2. Child-level allow",
-            "    --   3. Parent-level deny 4. Parent-level allow",
-            "    --   5. Global-level deny 6. Global-level allow",
+            "    --   1. Child-level deny (most specific, blocks access)",
+            "    --   2. Child-level allow (most specific, grants access)",
+            "    --   3. Parent-level deny (intermediate, blocks access)",
+            "    --   4. Parent-level allow (intermediate, grants access)",
+            "    --   5. Global-level deny (least specific, blocks access)",
+            "    --   6. Global-level allow (least specific, grants access)",
             "    --   7. Default deny (no rules match)",
             "    CASE",
-            "      WHEN ca.any_deny = 1 THEN 0",
-            "      WHEN ca.any_allow = 1 THEN 1",
-            "      WHEN pa.any_deny = 1 THEN 0",
-            "      WHEN pa.any_allow = 1 THEN 1",
-            "      WHEN ga.any_deny = 1 THEN 0",
-            "      WHEN ga.any_allow = 1 THEN 1",
+            "      WHEN cl.any_deny = 1 THEN 0",
+            "      WHEN cl.any_allow = 1 THEN 1",
+            "      WHEN pl.any_deny = 1 THEN 0",
+            "      WHEN pl.any_allow = 1 THEN 1",
+            "      WHEN gl.any_deny = 1 THEN 0",
+            "      WHEN gl.any_allow = 1 THEN 1",
             "      ELSE 0",
             "    END AS is_allowed,",
             "    CASE",
-            "      WHEN ca.any_deny = 1 THEN ca.deny_reasons",
-            "      WHEN ca.any_allow = 1 THEN ca.allow_reasons",
-            "      WHEN pa.any_deny = 1 THEN pa.deny_reasons",
-            "      WHEN pa.any_allow = 1 THEN pa.allow_reasons",
-            "      WHEN ga.any_deny = 1 THEN ga.deny_reasons",
-            "      WHEN ga.any_allow = 1 THEN ga.allow_reasons",
+            "      WHEN cl.any_deny = 1 THEN cl.deny_reasons",
+            "      WHEN cl.any_allow = 1 THEN cl.allow_reasons",
+            "      WHEN pl.any_deny = 1 THEN pl.deny_reasons",
+            "      WHEN pl.any_allow = 1 THEN pl.allow_reasons",
+            "      WHEN gl.any_deny = 1 THEN gl.deny_reasons",
+            "      WHEN gl.any_allow = 1 THEN gl.allow_reasons",
             "      ELSE '[]'",
             "    END AS reason",
         ]
@@ -355,34 +374,21 @@ async def _build_single_action_sql(
 
     if include_is_private:
         query_parts.append(
-            "    , CASE WHEN ("
-            "CASE"
-            " WHEN aca.any_deny = 1 THEN 0"
-            " WHEN aca.any_allow = 1 THEN 1"
-            " WHEN apa.any_deny = 1 THEN 0"
-            " WHEN apa.any_allow = 1 THEN 1"
-            " WHEN aga.any_deny = 1 THEN 0"
-            " WHEN aga.any_allow = 1 THEN 1"
-            " ELSE 0 END"
-            ") = 0 THEN 1 ELSE 0 END AS is_private"
+            "    , CASE WHEN ad.anon_is_allowed = 0 THEN 1 ELSE 0 END AS is_private"
         )
 
     query_parts.extend(
         [
             "  FROM base b",
-            "  LEFT JOIN child_agg ca ON ca.parent = b.parent AND ca.child = b.child",
-            "  LEFT JOIN parent_agg pa ON pa.parent = b.parent",
-            "  CROSS JOIN global_agg ga",
+            "  JOIN child_lvl cl ON b.parent = cl.parent AND (b.child = cl.child OR (b.child IS NULL AND cl.child IS NULL))",
+            "  JOIN parent_lvl pl ON b.parent = pl.parent AND (b.child = pl.child OR (b.child IS NULL AND pl.child IS NULL))",
+            "  JOIN global_lvl gl ON b.parent = gl.parent AND (b.child = gl.child OR (b.child IS NULL AND gl.child IS NULL))",
         ]
     )
 
     if include_is_private:
-        query_parts.extend(
-            [
-                "  LEFT JOIN anon_child_agg aca ON aca.parent = b.parent AND aca.child = b.child",
-                "  LEFT JOIN anon_parent_agg apa ON apa.parent = b.parent",
-                "  CROSS JOIN anon_global_agg aga",
-            ]
+        query_parts.append(
+            "  JOIN anon_decisions ad ON b.parent = ad.parent AND (b.child = ad.child OR (b.child IS NULL AND ad.child IS NULL))"
         )
 
     query_parts.append(")")
@@ -392,31 +398,10 @@ async def _build_single_action_sql(
         # Wrap each restriction_sql in a subquery to avoid operator precedence issues
         # with UNION ALL inside the restriction SQL statements
         restriction_intersect = "\nINTERSECT\n".join(
-            f"SELECT parent, child COLLATE {child_collation} AS child FROM ({sql})"
-            for sql in restriction_sqls
+            f"SELECT * FROM ({sql})" for sql in restriction_sqls
         )
-        # Decompose by NULL-pattern so the final filter can use pure-equality
-        # EXISTS lookups (satisfiable via automatic indexes) instead of a
-        # correlated OR-scan over the whole list.
         query_parts.extend(
-            [
-                ",",
-                "restriction_list AS (",
-                f"  {restriction_intersect}",
-                "),",
-                "restriction_exact AS (",
-                "  SELECT parent, child FROM restriction_list WHERE parent IS NOT NULL AND child IS NOT NULL",
-                "),",
-                "restriction_parent_any AS (",
-                "  SELECT DISTINCT parent FROM restriction_list WHERE parent IS NOT NULL AND child IS NULL",
-                "),",
-                "restriction_child_any AS (",
-                "  SELECT DISTINCT child FROM restriction_list WHERE parent IS NULL AND child IS NOT NULL",
-                "),",
-                "restriction_all AS (",
-                "  SELECT 1 AS matched FROM restriction_list WHERE parent IS NULL AND child IS NULL LIMIT 1",
-                ")",
-            ]
+            [",", "restriction_list AS (", f"  {restriction_intersect}", ")"]
         )
 
     # Final SELECT
@@ -431,11 +416,10 @@ async def _build_single_action_sql(
     # Add restriction filter if there are restrictions
     if restriction_sqls:
         query_parts.append("""
-  AND (
-    EXISTS (SELECT 1 FROM restriction_all)
-    OR EXISTS (SELECT 1 FROM restriction_parent_any r WHERE r.parent = decisions.parent)
-    OR EXISTS (SELECT 1 FROM restriction_child_any r WHERE r.child = decisions.child)
-    OR EXISTS (SELECT 1 FROM restriction_exact r WHERE r.parent = decisions.parent AND r.child = decisions.child)
+  AND EXISTS (
+    SELECT 1 FROM restriction_list r
+    WHERE (r.parent = decisions.parent OR r.parent IS NULL)
+      AND (r.child = decisions.child OR r.child IS NULL)
   )""")
 
     # Add parent filter if specified
@@ -491,7 +475,6 @@ async def build_permission_rules_sql(
     union_parts = []
     all_params = {}
     restriction_sqls = []
-    child_collation = _child_collation(action_obj)
 
     for permission_sql in permission_sqls:
         all_params.update(permission_sql.params or {})
@@ -505,7 +488,7 @@ async def build_permission_rules_sql(
             continue
 
         union_parts.append(f"""
-            SELECT parent, child COLLATE {child_collation} AS child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (
+            SELECT parent, child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (
                 {permission_sql.sql}
             )
             """.strip())
@@ -576,7 +559,6 @@ async def check_permissions_for_actions(
     verdicts = {}
 
     for i, (action, permission_sqls) in enumerate(zip(unique_actions, gathered)):
-        child_collation = _child_collation(datasette.actions[action])
         prefix = f"a{i}_"
         rule_parts = []
         restriction_parts = []
@@ -602,7 +584,7 @@ async def check_permissions_for_actions(
             if sql is None:
                 continue
             rule_parts.append(
-                f"SELECT parent, child COLLATE {child_collation} AS child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (\n{sql}\n)"
+                f"SELECT parent, child, allow, reason, '{permission_sql.source}' AS source_plugin FROM (\n{sql}\n)"
             )
 
         if not rule_parts:
@@ -636,8 +618,7 @@ async def check_permissions_for_actions(
         if restriction_parts:
             # Database-level restrictions (parent, NULL) match all children
             restriction_intersect = "\nINTERSECT\n".join(
-                f"SELECT parent, child COLLATE {child_collation} AS child FROM ({sql})"
-                for sql in restriction_parts
+                f"SELECT * FROM ({sql})" for sql in restriction_parts
             )
             ctes.append(f"a{i}_restriction AS (\n{restriction_intersect}\n)")
             verdict_sql = f"""({verdict_sql}) AND EXISTS (
@@ -692,240 +673,3 @@ async def check_permission_for_resource(
         child=child,
     )
     return results[action]
-
-
-async def explain_permission_for_resource(
-    *,
-    datasette: "Datasette",
-    actor: dict | None,
-    action: str,
-    parent: str | None,
-    child: str | None,
-) -> dict:
-    """Explain a permission decision for one action and resource.
-
-    This is intended for Datasette's permission debugging tools. It uses the
-    same ``permission_resources_sql`` hook results and the same resolution
-    rules as :func:`check_permissions_for_actions`, but also returns the
-    matching rules, actor restriction results and ``also_requires`` chain.
-
-    The returned dictionary is part of Datasette's unstable debugging API.
-    """
-
-    action_obj = datasette.actions.get(action)
-    if action_obj is None:
-        raise ValueError(f"Unknown action: {action}")
-
-    explanation = await _explain_single_action(
-        datasette=datasette,
-        actor=actor,
-        action=action,
-        parent=parent,
-        child=child,
-    )
-
-    required_actions = []
-    if action_obj.also_requires:
-        required = await explain_permission_for_resource(
-            datasette=datasette,
-            actor=actor,
-            action=action_obj.also_requires,
-            parent=parent,
-            child=child,
-        )
-        required_actions.append(required)
-
-    explanation["required_actions"] = required_actions
-    explanation["allowed"] = bool(
-        explanation["rule_allowed"]
-        and explanation["restriction_allowed"]
-        and all(required["allowed"] for required in required_actions)
-    )
-    explanation["summary"] = _permission_explanation_summary(explanation)
-    return explanation
-
-
-async def _explain_single_action(
-    *,
-    datasette: "Datasette",
-    actor: dict | None,
-    action: str,
-    parent: str | None,
-    child: str | None,
-) -> dict:
-    """Return matching rules and restrictions for a single action."""
-    from datasette.utils.permissions import SKIP_PERMISSION_CHECKS
-
-    permission_sqls = await gather_permission_sql_from_hooks(
-        datasette=datasette,
-        actor=actor,
-        action=action,
-    )
-
-    if permission_sqls is SKIP_PERMISSION_CHECKS:
-        return {
-            "action": action,
-            "rule_allowed": True,
-            "restriction_allowed": True,
-            "winning_scope": "global",
-            "matched_rules": [
-                {
-                    "scope": "global",
-                    "effect": "allow",
-                    "source": "skip_permission_checks",
-                    "reason": "Permission checks were explicitly skipped",
-                    "decisive": True,
-                    "ignored_because": None,
-                }
-            ],
-            "restrictions": [],
-        }
-
-    db = datasette.get_internal_database()
-    matched_rules = []
-    restrictions = []
-    child_collation = _child_collation(datasette.actions[action])
-
-    for permission_sql in permission_sqls:
-        params = dict(permission_sql.params or {})
-        parent_param = _unused_parameter_name(params, "_explain_parent")
-        params[parent_param] = parent
-        child_param = _unused_parameter_name(params, "_explain_child")
-        params[child_param] = child
-
-        if permission_sql.sql:
-            rows = await db.execute(
-                f"""
-                SELECT parent, child, allow, reason
-                FROM ({permission_sql.sql}) AS permission_rules
-                WHERE (parent IS NULL OR parent = :{parent_param})
-                  AND (child IS NULL OR child COLLATE {child_collation} = :{child_param})
-                """,
-                params,
-            )
-            for row in rows:
-                specificity = (
-                    2
-                    if row["child"] is not None
-                    else 1 if row["parent"] is not None else 0
-                )
-                matched_rules.append(
-                    {
-                        "scope": ("resource", "parent", "global")[2 - specificity],
-                        "effect": "allow" if row["allow"] else "deny",
-                        "source": permission_sql.source,
-                        "reason": row["reason"],
-                        "_specificity": specificity,
-                    }
-                )
-
-        if permission_sql.restriction_sql:
-            restriction_row = (
-                await db.execute(
-                    f"""
-                    SELECT EXISTS(
-                        SELECT 1 FROM ({permission_sql.restriction_sql}) AS restriction_rules
-                        WHERE (parent IS NULL OR parent = :{parent_param})
-                          AND (child IS NULL OR child COLLATE {child_collation} = :{child_param})
-                    ) AS resource_is_in_allowlist
-                    """,
-                    params,
-                )
-            ).first()
-            restriction_allowed = bool(restriction_row[0])
-            restrictions.append(
-                {
-                    "source": permission_sql.source,
-                    "allowed": restriction_allowed,
-                    "reason": params.get("deny")
-                    or (
-                        "Resource is included in this restriction allowlist"
-                        if restriction_allowed
-                        else "Resource is not included in this restriction allowlist"
-                    ),
-                }
-            )
-
-    matched_rules.sort(
-        key=lambda rule: (
-            -rule["_specificity"],
-            0 if rule["effect"] == "deny" else 1,
-            rule["source"] or "",
-            rule["reason"] or "",
-        )
-    )
-
-    if matched_rules:
-        winning_specificity = matched_rules[0]["_specificity"]
-        winning_rules = [
-            rule
-            for rule in matched_rules
-            if rule["_specificity"] == winning_specificity
-        ]
-        rule_allowed = not any(rule["effect"] == "deny" for rule in winning_rules)
-        winning_scope = winning_rules[0]["scope"]
-    else:
-        winning_specificity = None
-        rule_allowed = False
-        winning_scope = None
-
-    for rule in matched_rules:
-        specificity = rule.pop("_specificity")
-        if specificity != winning_specificity:
-            rule["decisive"] = False
-            rule["ignored_because"] = "A more specific rule matched"
-        elif not rule_allowed and rule["effect"] == "allow":
-            rule["decisive"] = False
-            rule["ignored_because"] = "A deny rule matched at the same scope"
-        else:
-            rule["decisive"] = True
-            rule["ignored_because"] = None
-
-    return {
-        "action": action,
-        "rule_allowed": rule_allowed,
-        "restriction_allowed": all(
-            restriction["allowed"] for restriction in restrictions
-        ),
-        "winning_scope": winning_scope,
-        "matched_rules": matched_rules,
-        "restrictions": restrictions,
-    }
-
-
-def _unused_parameter_name(params: dict, preferred: str) -> str:
-    """Return a SQL parameter name that is not already in ``params``."""
-    candidate = preferred
-    suffix = 2
-    while candidate in params:
-        candidate = f"{preferred}_{suffix}"
-        suffix += 1
-    return candidate
-
-
-def _permission_explanation_summary(explanation: dict) -> str:
-    denied_requirement = next(
-        (
-            required
-            for required in explanation["required_actions"]
-            if not required["allowed"]
-        ),
-        None,
-    )
-    if denied_requirement:
-        return (
-            f"Denied because {explanation['action']} also requires "
-            f"{denied_requirement['action']}, which was denied."
-        )
-    if not explanation["matched_rules"]:
-        return "Denied because no permission rule matched this actor and resource."
-    if not explanation["rule_allowed"]:
-        return (
-            f"Denied by a {explanation['winning_scope']}-level rule. "
-            "Deny rules take precedence over allow rules at the same scope."
-        )
-    if not explanation["restriction_allowed"]:
-        return (
-            "Denied because the resource is not included in the actor's restrictions."
-        )
-    return f"Allowed by the matching {explanation['winning_scope']}-level rule."

datasette/utils/asgi.py

@@ -1,30 +1,28 @@
-import asyncio
 import json
-import re
-from http.cookies import Morsel, SimpleCookie
-from mimetypes import guess_type
-from pathlib import Path
-from urllib.parse import parse_qs, parse_qsl, urlunparse
-
-import aiofiles
-import aiofiles.os
-
-from datasette.utils import MultiParams, calculate_etag, error_body, sha256_file
+from typing import Optional
+from datasette.utils import MultiParams, calculate_etag, sha256_file
 from datasette.utils.multipart import (
-    DEFAULT_MAX_FIELD_SIZE,
-    DEFAULT_MAX_FIELDS,
+    parse_form_data,
+    MultipartParseError,
+    FormData,
     DEFAULT_MAX_FILE_SIZE,
+    DEFAULT_MAX_REQUEST_SIZE,
+    DEFAULT_MAX_FIELDS,
     DEFAULT_MAX_FILES,
+    DEFAULT_MAX_PARTS,
+    DEFAULT_MAX_FIELD_SIZE,
     DEFAULT_MAX_MEMORY_FILE_SIZE,
     DEFAULT_MAX_PART_HEADER_BYTES,
     DEFAULT_MAX_PART_HEADER_LINES,
-    DEFAULT_MAX_PARTS,
-    DEFAULT_MAX_REQUEST_SIZE,
     DEFAULT_MIN_FREE_DISK_BYTES,
-    FormData,
-    MultipartParseError,
-    parse_form_data,
 )
+from mimetypes import guess_type
+from urllib.parse import parse_qs, urlunparse, parse_qsl
+from pathlib import Path
+from http.cookies import SimpleCookie, Morsel
+import aiofiles
+import aiofiles.os
+import re
 
 # Workaround for adding samesite support to pre 3.8 python
 Morsel._reserved["samesite"] = "SameSite"
@@ -69,28 +67,16 @@ class BadRequest(Base400):
     status = 400
 
 
-class PayloadTooLarge(Base400):
-    status = 413
-
-
 SAMESITE_VALUES = ("strict", "lax", "none")
 
-# Bodies read fully into memory (post_body/post_vars/json) are capped at this
-# size unless the max_post_body_bytes setting says otherwise. Kept deliberately
-# far below multipart's DEFAULT_MAX_REQUEST_SIZE: that parser streams to disk,
-# while these bodies are held in RAM and json.loads() can multiply their
-# footprint several times over.
-DEFAULT_MAX_POST_BODY_BYTES = 2 * 1024 * 1024  # 2MB
-
 
 class Request:
-    def __init__(self, scope, receive, max_post_body_bytes=DEFAULT_MAX_POST_BODY_BYTES):
+    def __init__(self, scope, receive):
         self.scope = scope
         self.receive = receive
-        self.max_post_body_bytes = max_post_body_bytes
 
     def __repr__(self):
-        return f'<asgi.Request method="{self.method}" url="{self.url}">'
+        return '<asgi.Request method="{}" url="{}">'.format(self.method, self.url)
 
     @property
     def method(self):
@@ -155,43 +141,15 @@ class Request:
     def actor(self):
         return self.scope.get("actor", None)
 
-    async def post_body(self, max_bytes=None):
-        """
-        Read the request body fully into memory.
-
-        The body is capped at max_bytes - or self.max_post_body_bytes
-        (default 2MB, set from the max_post_body_bytes setting for requests
-        created by Datasette) if max_bytes is not provided. Pass max_bytes=0
-        to disable the limit. Raises PayloadTooLarge (HTTP 413) if exceeded -
-        oversized bodies are rejected as soon as the limit is passed, without
-        buffering the rest.
-        """
-        if max_bytes is None:
-            max_bytes = self.max_post_body_bytes
-        too_large = PayloadTooLarge(
-            f"Request body exceeded maximum size of {max_bytes} bytes"
-        )
-        if max_bytes:
-            # Reject early if the client declares an oversized body
-            try:
-                if int(self.headers.get("content-length", "")) > max_bytes:
-                    raise too_large
-            except ValueError:
-                # Missing or malformed - the streaming check below still applies
-                pass
-        chunks = []
-        received = 0
+    async def post_body(self):
+        body = b""
         more_body = True
         while more_body:
             message = await self.receive()
             assert message["type"] == "http.request", message
-            chunk = message.get("body", b"")
-            received += len(chunk)
-            if max_bytes and received > max_bytes:
-                raise too_large
-            chunks.append(chunk)
+            body += message.get("body", b"")
             more_body = message.get("more_body", False)
-        return b"".join(chunks)
+        return body
 
     async def post_vars(self):
         body = await self.post_body()
@@ -208,7 +166,7 @@ class Request:
         max_request_size: int = DEFAULT_MAX_REQUEST_SIZE,
         max_fields: int = DEFAULT_MAX_FIELDS,
         max_files: int = DEFAULT_MAX_FILES,
-        max_parts: int | None = DEFAULT_MAX_PARTS,
+        max_parts: Optional[int] = DEFAULT_MAX_PARTS,
         max_field_size: int = DEFAULT_MAX_FIELD_SIZE,
         max_memory_file_size: int = DEFAULT_MAX_MEMORY_FILE_SIZE,
         max_part_header_bytes: int = DEFAULT_MAX_PART_HEADER_BYTES,
@@ -301,24 +259,12 @@ class AsgiLifespan:
             while True:
                 message = await receive()
                 if message["type"] == "lifespan.startup":
-                    try:
-                        for fn in self.on_startup:
-                            await fn()
-                    except Exception as e:  # noqa: BLE001
-                        await send(
-                            {"type": "lifespan.startup.failed", "message": str(e)}
-                        )
-                        return
+                    for fn in self.on_startup:
+                        await fn()
                     await send({"type": "lifespan.startup.complete"})
                 elif message["type"] == "lifespan.shutdown":
-                    try:
-                        for fn in self.on_shutdown:
-                            await fn()
-                    except Exception as e:  # noqa: BLE001
-                        await send(
-                            {"type": "lifespan.shutdown.failed", "message": str(e)}
-                        )
-                        return
+                    for fn in self.on_shutdown:
+                        await fn()
                     await send({"type": "lifespan.shutdown.complete"})
                     return
         else:
@@ -498,8 +444,6 @@ def asgi_static(root_path, chunk_size=4096, headers=None, content_type=None):
             await asgi_send_html(send, "404: File not found", 404)
             return
 
-    # Only the actual static-file handler can bypass dynamic response privacy.
-    inner_static._datasette_static = True
     return inner_static
 
 
@@ -545,9 +489,9 @@ class Response:
         httponly=False,
         samesite="lax",
     ):
-        assert (
-            samesite in SAMESITE_VALUES
-        ), f"samesite should be one of {SAMESITE_VALUES}"
+        assert samesite in SAMESITE_VALUES, "samesite should be one of {}".format(
+            SAMESITE_VALUES
+        )
         cookie = SimpleCookie()
         cookie[key] = value
         for prop_name, prop_value in (
@@ -591,18 +535,6 @@ class Response:
             content_type="application/json; charset=utf-8",
         )
 
-    @classmethod
-    def error(cls, messages, status=400, headers=None):
-        """
-        A JSON error response using Datasette's standard error format.
-
-        messages can be a single string or a list of strings. For errors
-        that should content-negotiate between JSON and HTML, raise
-        Forbidden, NotFound, BadRequest or DatasetteError instead and let
-        Datasette's error handling hooks build the response.
-        """
-        return cls.json(error_body(messages, status), status=status, headers=headers)
-
     @classmethod
     def redirect(cls, path, status=302, headers=None):
         headers = headers or {}
@@ -639,23 +571,10 @@ class AsgiRunOnFirstRequest:
         self.asgi = asgi
         self.on_startup = on_startup
         self._started = False
-        # Guards against concurrent early requests interleaving with startup:
-        # without this, several requests could all observe `_started is
-        # False` and proceed before any of them finish running the hooks.
-        self._lock = asyncio.Lock()
 
     async def __call__(self, scope, receive, send):
-        # Leave "lifespan" scope events alone - this shim only exists as a
-        # fallback for hosts that never send them. It wraps AsgiLifespan, so
-        # if it ran on_startup here too, a startup exception would escape
-        # before AsgiLifespan's own try/except got a chance to turn it into
-        # a lifespan.startup.failed message.
-        if scope["type"] != "lifespan" and not self._started:
-            async with self._lock:
-                # Re-check: another request may have finished startup while
-                # we were waiting for the lock.
-                if not self._started:
-                    for hook in self.on_startup:
-                        await hook()
-                    self._started = True
+        if not self._started:
+            self._started = True
+            for hook in self.on_startup:
+                await hook()
         return await self.asgi(scope, receive, send)

datasette/utils/baseconv.py

@@ -13,7 +13,7 @@ Originally shared here: https://www.djangosnippets.org/snippets/1431/
 """
 
 
-class BaseConverter:
+class BaseConverter(object):
     decimal_digits = "0123456789"
 
     def __init__(self, digits):

datasette/utils/check_callable.py

@@ -1,6 +1,6 @@
 import inspect
 import types
-from typing import Any, NamedTuple
+from typing import NamedTuple, Any
 
 
 class CallableStatus(NamedTuple):
@@ -19,7 +19,7 @@ def check_callable(obj: Any) -> CallableStatus:
     if isinstance(obj, types.FunctionType):
         return CallableStatus(True, inspect.iscoroutinefunction(obj))
 
-    if callable(obj):
+    if hasattr(obj, "__call__"):
         return CallableStatus(True, inspect.iscoroutinefunction(obj.__call__))
 
-    assert False, f"obj {obj!r} is somehow callable with no __call__ method"
+    assert False, "obj {} is somehow callable with no __call__ method".format(repr(obj))

datasette/utils/internal_db.py

@@ -1,30 +1,9 @@
 import textwrap
+from datasette.utils import table_column_details
 
-from sqlite_utils import Database as SQLiteUtilsDatabase
-from sqlite_utils import Migrations
 
-from datasette.utils import escape_sqlite, table_column_details
-
-INTERNAL_DB_SCHEMA_TABLES = {
-    "catalog_databases",
-    "catalog_tables",
-    "catalog_views",
-    "catalog_columns",
-    "catalog_indexes",
-    "catalog_foreign_keys",
-    "metadata_instance",
-    "metadata_databases",
-    "metadata_resources",
-    "metadata_columns",
-    "column_types",
-    "queries",
-}
-
-INTERNAL_DB_SCHEMA_INDEXES = {
-    "queries_owner_idx",
-}
-
-INTERNAL_DB_SCHEMA_SQL = textwrap.dedent("""
+async def init_internal_db(db):
+    create_tables_sql = textwrap.dedent("""
     CREATE TABLE IF NOT EXISTS catalog_databases (
         database_name TEXT PRIMARY KEY,
         path TEXT,
@@ -88,101 +67,99 @@ INTERNAL_DB_SCHEMA_SQL = textwrap.dedent("""
         FOREIGN KEY (database_name) REFERENCES catalog_databases(database_name),
         FOREIGN KEY (database_name, table_name) REFERENCES catalog_tables(database_name, table_name)
     );
-
-    CREATE TABLE IF NOT EXISTS metadata_instance (
-        key text,
-        value text,
-        unique(key)
-    );
-
-    CREATE TABLE IF NOT EXISTS metadata_databases (
-        database_name text,
-        key text,
-        value text,
-        unique(database_name, key)
-    );
-
-    CREATE TABLE IF NOT EXISTS metadata_resources (
-        database_name text,
-        resource_name text,
-        key text,
-        value text,
-        unique(database_name, resource_name, key)
-    );
-
-    CREATE TABLE IF NOT EXISTS metadata_columns (
-        database_name text,
-        resource_name text,
-        column_name text,
-        key text,
-        value text,
-        unique(database_name, resource_name, column_name, key)
-    );
-
-    CREATE TABLE IF NOT EXISTS column_types (
-        database_name TEXT NOT NULL,
-        resource_name TEXT NOT NULL,
-        column_name TEXT NOT NULL,
-        column_type TEXT NOT NULL,
-        config TEXT,
-        PRIMARY KEY (database_name, resource_name, column_name)
-    );
-
-    CREATE TABLE IF NOT EXISTS queries (
-        database_name TEXT NOT NULL,
-        name TEXT NOT NULL,
-        sql TEXT NOT NULL,
-        title TEXT,
-        description TEXT,
-        description_html TEXT,
-        options TEXT NOT NULL DEFAULT '{}',
-        parameters TEXT NOT NULL DEFAULT '[]',
-        is_write INTEGER NOT NULL DEFAULT 0 CHECK (is_write IN (0, 1)),
-        is_private INTEGER NOT NULL DEFAULT 0 CHECK (is_private IN (0, 1)),
-        is_trusted INTEGER NOT NULL DEFAULT 0 CHECK (is_trusted IN (0, 1)),
-        source TEXT NOT NULL DEFAULT 'user',
-        owner_id TEXT,
-        created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
-        updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
-        PRIMARY KEY (database_name, name)
-    );
-
-    CREATE INDEX IF NOT EXISTS queries_owner_idx
-        ON queries(owner_id);
     """).strip()
+    await db.execute_write_script(create_tables_sql)
+    await initialize_metadata_tables(db)
 
 
-internal_migrations = Migrations("datasette_internal")
+async def initialize_metadata_tables(db):
+    await db.execute_write_script(textwrap.dedent("""
+        CREATE TABLE IF NOT EXISTS metadata_instance (
+            key text,
+            value text,
+            unique(key)
+        );
+
+        CREATE TABLE IF NOT EXISTS metadata_databases (
+            database_name text,
+            key text,
+            value text,
+            unique(database_name, key)
+        );
+
+        CREATE TABLE IF NOT EXISTS metadata_resources (
+            database_name text,
+            resource_name text,
+            key text,
+            value text,
+            unique(database_name, resource_name, key)
+        );
+
+        CREATE TABLE IF NOT EXISTS metadata_columns (
+            database_name text,
+            resource_name text,
+            column_name text,
+            key text,
+            value text,
+            unique(database_name, resource_name, column_name, key)
+        );
+
+        CREATE TABLE IF NOT EXISTS column_types (
+            database_name TEXT NOT NULL,
+            resource_name TEXT NOT NULL,
+            column_name TEXT NOT NULL,
+            column_type TEXT NOT NULL,
+            config TEXT,
+            PRIMARY KEY (database_name, resource_name, column_name)
+        );
+
+        CREATE TABLE IF NOT EXISTS queries (
+            database_name TEXT NOT NULL,
+            name TEXT NOT NULL,
+            sql TEXT NOT NULL,
+            title TEXT,
+            description TEXT,
+            description_html TEXT,
+            options TEXT NOT NULL DEFAULT '{}',
+            parameters TEXT NOT NULL DEFAULT '[]',
+            is_write INTEGER NOT NULL DEFAULT 0 CHECK (is_write IN (0, 1)),
+            is_private INTEGER NOT NULL DEFAULT 0 CHECK (is_private IN (0, 1)),
+            is_trusted INTEGER NOT NULL DEFAULT 0 CHECK (is_trusted IN (0, 1)),
+            source TEXT NOT NULL DEFAULT 'user',
+            owner_id TEXT,
+            created_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            updated_at TEXT NOT NULL DEFAULT CURRENT_TIMESTAMP,
+            PRIMARY KEY (database_name, name)
+        );
+
+        CREATE INDEX IF NOT EXISTS queries_owner_idx
+            ON queries(owner_id);
+            """))
 
 
-def _internal_schema_exists(db):
-    table_names = set(db.table_names())
-    if not INTERNAL_DB_SCHEMA_TABLES.issubset(table_names):
-        return False
-    index_names = {
-        row[0]
-        for row in db.execute("select name from sqlite_master where type = 'index'")
-    }
-    return INTERNAL_DB_SCHEMA_INDEXES.issubset(index_names)
-
-
-@internal_migrations(name="0001_initial")
-def initial_internal_schema(db):
-    if _internal_schema_exists(db):
-        return
-    db.executescript(INTERNAL_DB_SCHEMA_SQL)
-
-
-async def init_internal_db(db):
-    def apply_migrations(conn):
-        internal_migrations.apply(SQLiteUtilsDatabase(conn, execute_plugins=False))
-
-    await db.execute_write_fn(apply_migrations, transaction=False)
-
-
-async def populate_schema_tables(internal_db, db, schema_version):
+async def populate_schema_tables(internal_db, db):
     database_name = db.name
 
+    def delete_everything(conn):
+        conn.execute(
+            "DELETE FROM catalog_tables WHERE database_name = ?", [database_name]
+        )
+        conn.execute(
+            "DELETE FROM catalog_views WHERE database_name = ?", [database_name]
+        )
+        conn.execute(
+            "DELETE FROM catalog_columns WHERE database_name = ?", [database_name]
+        )
+        conn.execute(
+            "DELETE FROM catalog_foreign_keys WHERE database_name = ?",
+            [database_name],
+        )
+        conn.execute(
+            "DELETE FROM catalog_indexes WHERE database_name = ?", [database_name]
+        )
+
+    await internal_db.execute_write_fn(delete_everything)
+
     tables = (await db.execute("select * from sqlite_master WHERE type = 'table'")).rows
     views = (await db.execute("select * from sqlite_master WHERE type = 'view'")).rows
 
@@ -207,30 +184,25 @@ async def populate_schema_tables(internal_db, db, schema_version):
             columns = table_column_details(conn, table_name)
             columns_to_insert.extend(
                 {
-                    "database_name": database_name,
-                    "table_name": table_name,
+                    **{"database_name": database_name, "table_name": table_name},
                     **column._asdict(),
                 }
                 for column in columns
             )
             foreign_keys = conn.execute(
-                f"PRAGMA foreign_key_list({escape_sqlite(table_name)})"
+                f"PRAGMA foreign_key_list([{table_name}])"
             ).fetchall()
             foreign_keys_to_insert.extend(
                 {
-                    "database_name": database_name,
-                    "table_name": table_name,
+                    **{"database_name": database_name, "table_name": table_name},
                     **dict(foreign_key),
                 }
                 for foreign_key in foreign_keys
             )
-            indexes = conn.execute(
-                f"PRAGMA index_list({escape_sqlite(table_name)})"
-            ).fetchall()
+            indexes = conn.execute(f"PRAGMA index_list([{table_name}])").fetchall()
             indexes_to_insert.extend(
                 {
-                    "database_name": database_name,
-                    "table_name": table_name,
+                    **{"database_name": database_name, "table_name": table_name},
                     **dict(index),
                 }
                 for index in indexes
@@ -251,76 +223,47 @@ async def populate_schema_tables(internal_db, db, schema_version):
         indexes_to_insert,
     ) = await db.execute_fn(collect_info)
 
-    def replace_catalog(conn):
-        # Delete child rows before their catalog_tables parents so this also
-        # works if a prepare_connection plugin enables foreign key enforcement.
-        for table in (
-            "catalog_columns",
-            "catalog_foreign_keys",
-            "catalog_indexes",
-            "catalog_views",
-            "catalog_tables",
-        ):
-            conn.execute(
-                f"DELETE FROM {table} WHERE database_name = ?",
-                [database_name],
-            )
-        conn.execute(
-            """
-            INSERT OR REPLACE INTO catalog_databases (
-                database_name, path, is_memory, schema_version
-            ) VALUES (?, ?, ?, ?)
-            """,
-            [
-                database_name,
-                str(db.path) if db.path is not None else None,
-                db.is_memory,
-                schema_version,
-            ],
+    await internal_db.execute_write_many(
+        """
+        INSERT INTO catalog_tables (database_name, table_name, rootpage, sql)
+        values (?, ?, ?, ?)
+    """,
+        tables_to_insert,
+    )
+    await internal_db.execute_write_many(
+        """
+        INSERT INTO catalog_views (database_name, view_name, rootpage, sql)
+        values (?, ?, ?, ?)
+    """,
+        views_to_insert,
+    )
+    await internal_db.execute_write_many(
+        """
+        INSERT INTO catalog_columns (
+            database_name, table_name, cid, name, type, "notnull", default_value, is_pk, hidden
+        ) VALUES (
+            :database_name, :table_name, :cid, :name, :type, :notnull, :default_value, :is_pk, :hidden
         )
-        conn.executemany(
-            """
-            INSERT INTO catalog_tables (database_name, table_name, rootpage, sql)
-            values (?, ?, ?, ?)
-            """,
-            tables_to_insert,
+    """,
+        columns_to_insert,
+    )
+    await internal_db.execute_write_many(
+        """
+        INSERT INTO catalog_foreign_keys (
+            database_name, table_name, "id", seq, "table", "from", "to", on_update, on_delete, match
+        ) VALUES (
+            :database_name, :table_name, :id, :seq, :table, :from, :to, :on_update, :on_delete, :match
         )
-        conn.executemany(
-            """
-            INSERT INTO catalog_views (database_name, view_name, rootpage, sql)
-            values (?, ?, ?, ?)
-            """,
-            views_to_insert,
+    """,
+        foreign_keys_to_insert,
+    )
+    await internal_db.execute_write_many(
+        """
+        INSERT INTO catalog_indexes (
+            database_name, table_name, seq, name, "unique", origin, partial
+        ) VALUES (
+            :database_name, :table_name, :seq, :name, :unique, :origin, :partial
         )
-        conn.executemany(
-            """
-            INSERT INTO catalog_columns (
-                database_name, table_name, cid, name, type, "notnull", default_value, is_pk, hidden
-            ) VALUES (
-                :database_name, :table_name, :cid, :name, :type, :notnull, :default_value, :is_pk, :hidden
-            )
-            """,
-            columns_to_insert,
-        )
-        conn.executemany(
-            """
-            INSERT INTO catalog_foreign_keys (
-                database_name, table_name, "id", seq, "table", "from", "to", on_update, on_delete, match
-            ) VALUES (
-                :database_name, :table_name, :id, :seq, :table, :from, :to, :on_update, :on_delete, :match
-            )
-            """,
-            foreign_keys_to_insert,
-        )
-        conn.executemany(
-            """
-            INSERT INTO catalog_indexes (
-                database_name, table_name, seq, name, "unique", origin, partial
-            ) VALUES (
-                :database_name, :table_name, :seq, :name, :unique, :origin, :partial
-            )
-            """,
-            indexes_to_insert,
-        )
-
-    await internal_db.execute_write_fn(replace_catalog)
+    """,
+        indexes_to_insert,
+    )

datasette/utils/multipart.py

@@ -11,10 +11,15 @@ Supports:
 import asyncio
 import shutil
 import tempfile
-from collections.abc import Callable
 from dataclasses import dataclass, field
 from typing import (
     Any,
+    Callable,
+    Dict,
+    List,
+    Optional,
+    Tuple,
+    Union,
 )
 from urllib.parse import parse_qsl
 
@@ -24,7 +29,7 @@ DEFAULT_MAX_REQUEST_SIZE = 100 * 1024 * 1024  # 100MB
 DEFAULT_MAX_FIELDS = 1000
 DEFAULT_MAX_FILES = 100
 # If max_parts is not specified, it defaults to max_fields + max_files
-DEFAULT_MAX_PARTS: int | None = None
+DEFAULT_MAX_PARTS: Optional[int] = None
 DEFAULT_MAX_FIELD_SIZE = 100 * 1024  # 100KB
 DEFAULT_MAX_MEMORY_FILE_SIZE = 1024 * 1024  # 1MB
 DEFAULT_MAX_PART_HEADER_BYTES = 16 * 1024  # 16KB
@@ -35,6 +40,8 @@ DEFAULT_MIN_FREE_DISK_BYTES = 50 * 1024 * 1024  # 50MB
 class MultipartParseError(Exception):
     """Raised when multipart parsing fails."""
 
+    pass
+
 
 @dataclass
 class UploadedFile:
@@ -50,7 +57,7 @@ class UploadedFile:
 
     name: str
     filename: str
-    content_type: str | None
+    content_type: Optional[str]
     size: int
     _file: tempfile.SpooledTemporaryFile = field(repr=False)
 
@@ -79,8 +86,7 @@ class UploadedFile:
     def __del__(self):
         try:
             self._file.close()
-        except Exception:  # noqa: BLE001, S110
-            # __del__ must never raise
+        except Exception:
             pass
 
 
@@ -92,27 +98,27 @@ class FormData:
     """
 
     def __init__(self):
-        self._data: list[tuple[str, str | UploadedFile]] = []
+        self._data: List[Tuple[str, Union[str, UploadedFile]]] = []
 
-    def append(self, key: str, value: str | UploadedFile) -> None:
+    def append(self, key: str, value: Union[str, UploadedFile]) -> None:
         """Add a key-value pair."""
         self._data.append((key, value))
 
-    def __getitem__(self, key: str) -> str | UploadedFile:
+    def __getitem__(self, key: str) -> Union[str, UploadedFile]:
         """Get the first value for a key."""
         for k, v in self._data:
             if k == key:
                 return v
         raise KeyError(key)
 
-    def get(self, key: str, default: Any = None) -> str | UploadedFile | None:
+    def get(self, key: str, default: Any = None) -> Optional[Union[str, UploadedFile]]:
         """Get the first value for a key, or default if not found."""
         try:
             return self[key]
         except KeyError:
             return default
 
-    def getlist(self, key: str) -> list[str | UploadedFile]:
+    def getlist(self, key: str) -> List[Union[str, UploadedFile]]:
         """Get all values for a key."""
         return [v for k, v in self._data if k == key]
 
@@ -136,15 +142,15 @@ class FormData:
         """Return unique keys."""
         return list(self)
 
-    def items(self) -> list[tuple[str, str | UploadedFile]]:
+    def items(self) -> List[Tuple[str, Union[str, UploadedFile]]]:
         """Return all key-value pairs."""
         return list(self._data)
 
-    def values(self) -> list[str | UploadedFile]:
+    def values(self) -> List[Union[str, UploadedFile]]:
         """Return all values."""
         return [v for _, v in self._data]
 
-    def _uploaded_files(self) -> list[UploadedFile]:
+    def _uploaded_files(self) -> List[UploadedFile]:
         """Return UploadedFile instances contained in this form."""
         return [v for _, v in self._data if isinstance(v, UploadedFile)]
 
@@ -157,7 +163,7 @@ class FormData:
         for uploaded in self._uploaded_files():
             try:
                 uploaded.close_sync()
-            except Exception:  # noqa: BLE001, S110
+            except Exception:
                 # Best-effort cleanup; ignore close errors
                 pass
 
@@ -166,7 +172,7 @@ class FormData:
         for uploaded in self._uploaded_files():
             try:
                 await uploaded.close()
-            except Exception:  # noqa: BLE001, S110
+            except Exception:
                 # Best-effort cleanup; ignore close errors
                 pass
 
@@ -183,13 +189,13 @@ class FormData:
         await self.aclose()
 
 
-def parse_content_disposition(header: str) -> dict[str, str | None]:
+def parse_content_disposition(header: str) -> Dict[str, Optional[str]]:
     """
     Parse Content-Disposition header value.
 
     Returns dict with 'name', 'filename' keys (filename may be None).
     """
-    result: dict[str, str | None] = {"name": None, "filename": None}
+    result: Dict[str, Optional[str]] = {"name": None, "filename": None}
 
     # Split on semicolons, handling quoted strings
     parts = []
@@ -232,8 +238,7 @@ def parse_content_disposition(header: str) -> dict[str, str | None]:
                         from urllib.parse import unquote
 
                         result["filename"] = unquote(encoded, encoding="utf-8")
-                    except Exception:  # noqa: BLE001, S110
-                        # Malformed RFC 5987 filename* - fall back to the plain filename
+                    except Exception:
                         pass
             continue
 
@@ -245,19 +250,20 @@ def parse_content_disposition(header: str) -> dict[str, str | None]:
 
         if key == "name":
             result["name"] = value
-        # Only set filename if filename* hasn't already set it
-        elif key == "filename" and result["filename"] is None:
-            # Strip path components (security)
-            # Handle both Unix and Windows paths
-            value = value.replace("\\", "/")
-            if "/" in value:
-                value = value.rsplit("/", 1)[-1]
-            result["filename"] = value
+        elif key == "filename":
+            # Only set if filename* hasn't already set it
+            if result["filename"] is None:
+                # Strip path components (security)
+                # Handle both Unix and Windows paths
+                value = value.replace("\\", "/")
+                if "/" in value:
+                    value = value.rsplit("/", 1)[-1]
+                result["filename"] = value
 
     return result
 
 
-def parse_content_type(header: str) -> tuple[str, dict[str, str]]:
+def parse_content_type(header: str) -> Tuple[str, Dict[str, str]]:
     """
     Parse Content-Type header value.
 
@@ -301,7 +307,7 @@ class MultipartParser:
         max_request_size: int = DEFAULT_MAX_REQUEST_SIZE,
         max_fields: int = DEFAULT_MAX_FIELDS,
         max_files: int = DEFAULT_MAX_FILES,
-        max_parts: int | None = DEFAULT_MAX_PARTS,
+        max_parts: Optional[int] = DEFAULT_MAX_PARTS,
         max_field_size: int = DEFAULT_MAX_FIELD_SIZE,
         max_memory_file_size: int = DEFAULT_MAX_MEMORY_FILE_SIZE,
         max_part_header_bytes: int = DEFAULT_MAX_PART_HEADER_BYTES,
@@ -342,12 +348,12 @@ class MultipartParser:
         self._tempdir = tempfile.gettempdir()
 
         # Current part state
-        self.current_headers: dict[str, str] = {}
-        self.current_file: tempfile.SpooledTemporaryFile | None = None
+        self.current_headers: Dict[str, str] = {}
+        self.current_file: Optional[tempfile.SpooledTemporaryFile] = None
         self.current_body = bytearray()
-        self.current_name: str | None = None
-        self.current_filename: str | None = None
-        self.current_content_type: str | None = None
+        self.current_name: Optional[str] = None
+        self.current_filename: Optional[str] = None
+        self.current_content_type: Optional[str] = None
 
     def feed(self, chunk: bytes) -> None:
         """Feed a chunk of data to the parser."""
@@ -448,7 +454,7 @@ class MultipartParser:
             # Parse header
             try:
                 line_str = line.decode("utf-8", errors="replace")
-            except UnicodeDecodeError:
+            except Exception:
                 line_str = line.decode("latin-1")
 
             if ":" in line_str:
@@ -475,9 +481,7 @@ class MultipartParser:
             if self.file_count > self.max_files:
                 raise MultipartParseError("Too many files")
             if self.handle_files:
-                # Outlives this method - it is filled in across parser callbacks
-                # and then handed to the UploadedFile the caller consumes
-                self.current_file = tempfile.SpooledTemporaryFile(  # noqa: SIM115
+                self.current_file = tempfile.SpooledTemporaryFile(
                     max_size=self.max_memory_file_size
                 )
             else:
@@ -640,7 +644,7 @@ async def parse_form_data(
     max_request_size: int = DEFAULT_MAX_REQUEST_SIZE,
     max_fields: int = DEFAULT_MAX_FIELDS,
     max_files: int = DEFAULT_MAX_FILES,
-    max_parts: int | None = DEFAULT_MAX_PARTS,
+    max_parts: Optional[int] = DEFAULT_MAX_PARTS,
     max_field_size: int = DEFAULT_MAX_FIELD_SIZE,
     max_memory_file_size: int = DEFAULT_MAX_MEMORY_FILE_SIZE,
     max_part_header_bytes: int = DEFAULT_MAX_PART_HEADER_BYTES,

datasette/utils/permissions.py

@@ -2,9 +2,8 @@
 from __future__ import annotations
 
 import json
+from typing import Any, Dict, Iterable, List, Sequence, Tuple
 import sqlite3
-from collections.abc import Iterable, Sequence
-from typing import Any
 
 from datasette.permissions import PermissionSQL
 from datasette.plugins import pm
@@ -16,7 +15,7 @@ SKIP_PERMISSION_CHECKS = object()
 
 async def gather_permission_sql_from_hooks(
     *, datasette, actor: dict | None, action: str
-) -> list[PermissionSQL] | object:
+) -> List[PermissionSQL] | object:
     """Collect PermissionSQL objects from the permission_resources_sql hook.
 
     Ensures that each returned PermissionSQL has a populated ``source``.
@@ -35,7 +34,7 @@ async def gather_permission_sql_from_hooks(
     hookimpls = hook_caller.get_hookimpls()
     hook_results = list(hook_caller(datasette=datasette, actor=actor, action=action))
 
-    collected: list[PermissionSQL] = []
+    collected: List[PermissionSQL] = []
     actor_json = json.dumps(actor) if actor is not None else None
     actor_id = actor.get("id") if isinstance(actor, dict) else None
 
@@ -72,7 +71,7 @@ def _iter_permission_sql_from_result(
     if isinstance(result, PermissionSQL):
         return [result]
     if isinstance(result, (list, tuple)):
-        collected: list[PermissionSQL] = []
+        collected: List[PermissionSQL] = []
         for item in result:
             collected.extend(_iter_permission_sql_from_result(item, action=action))
         return collected
@@ -91,7 +90,7 @@ def _iter_permission_sql_from_result(
 
 def build_rules_union(
     actor: dict | None, plugins: Sequence[PermissionSQL]
-) -> tuple[str, dict[str, Any]]:
+) -> Tuple[str, Dict[str, Any]]:
     """
     Compose plugin SQL into a UNION ALL.
 
@@ -103,10 +102,10 @@ def build_rules_union(
     The system reserves these parameter names: :actor, :actor_id, :action, :filter_parent
     Plugin parameters should be prefixed with a unique identifier (e.g., source name).
     """
-    parts: list[str] = []
+    parts: List[str] = []
     actor_json = json.dumps(actor) if actor else None
     actor_id = actor.get("id") if actor else None
-    params: dict[str, Any] = {"actor": actor_json, "actor_id": actor_id}
+    params: Dict[str, Any] = {"actor": actor_json, "actor_id": actor_id}
 
     for p in plugins:
         # No namespacing - just use plugin params as-is
@@ -142,10 +141,10 @@ async def resolve_permissions_from_catalog(
     plugins: Sequence[Any],
     action: str,
     candidate_sql: str,
-    candidate_params: dict[str, Any] | None = None,
+    candidate_params: Dict[str, Any] | None = None,
     *,
     implicit_deny: bool = True,
-) -> list[dict[str, Any]]:
+) -> List[Dict[str, Any]]:
     """
     Resolve permissions by embedding the provided *candidate_sql* in a CTE.
 
@@ -169,8 +168,8 @@ async def resolve_permissions_from_catalog(
       - parent, child, allow, reason, source_plugin, depth
       - resource (rendered "/parent/child" or "/parent" or "/")
     """
-    resolved_plugins: list[PermissionSQL] = []
-    restriction_sqls: list[str] = []
+    resolved_plugins: List[PermissionSQL] = []
+    restriction_sqls: List[str] = []
 
     for plugin in plugins:
         if callable(plugin) and not isinstance(plugin, PermissionSQL):
@@ -399,11 +398,11 @@ async def resolve_permissions_with_candidates(
     db,
     actor: dict | None,
     plugins: Sequence[Any],
-    candidates: list[tuple[str, str | None]],
+    candidates: List[Tuple[str, str | None]],
     action: str,
     *,
     implicit_deny: bool = True,
-) -> list[dict[str, Any]]:
+) -> List[Dict[str, Any]]:
     """
     Resolve permissions without any external candidate table by embedding
     the candidates as a UNION of parameterized SELECTs in a CTE.
@@ -412,8 +411,8 @@ async def resolve_permissions_with_candidates(
     actor: actor dict (or None), made available as :actor (JSON), :actor_id, and :action
     """
     # Build a small CTE for candidates.
-    cand_rows_sql: list[str] = []
-    cand_params: dict[str, Any] = {}
+    cand_rows_sql: List[str] = []
+    cand_params: Dict[str, Any] = {}
     for i, (parent, child) in enumerate(candidates):
         pkey = f"cand_p_{i}"
         ckey = f"cand_c_{i}"

datasette/utils/shutil_backport.py

@@ -6,7 +6,7 @@ https://github.com/python/cpython/blob/v3.8.3/LICENSE
 """
 
 import os
-from shutil import Error, copy, copy2, copystat
+from shutil import copy, copy2, copystat, Error
 
 
 def _copytree(

datasette/utils/sql_analysis.py

@@ -1,8 +1,6 @@
-import sys
 from dataclasses import dataclass
 from typing import Literal
 
-from datasette.utils import escape_sqlite
 from datasette.utils.sqlite import SQLiteTableType, sqlite3, sqlite_table_type
 
 SQLOperation = Literal[
@@ -197,16 +195,6 @@ def _allow_authorizer_action(*args):
     return sqlite3.SQLITE_OK
 
 
-def _disable_authorizer(conn):
-    # Python 3.11 added support for unregistering an authorizer using None.
-    # On Python 3.10, None is installed as the callback instead, and the next
-    # statement fails with "not authorized" when sqlite3 tries to call it.
-    if sys.version_info >= (3, 11):
-        conn.set_authorizer(None)
-    else:
-        conn.set_authorizer(_allow_authorizer_action)
-
-
 def analyze_sql_tables(
     conn,
     sql: str,
@@ -220,9 +208,7 @@ def analyze_sql_tables(
 
     This function is synchronous and connection-based. It temporarily installs a
     SQLite authorizer, prepares ``EXPLAIN <sql>``, and returns the operation
-    callbacks observed while SQLite compiles the statement. ``CREATE VIEW`` is
-    additionally executed inside a rolled-back savepoint so its source-table reads
-    can be discovered by analyzing a query against the temporary view.
+    callbacks observed while SQLite compiles the statement.
     """
     operations: dict[OperationKey, set[str]] = {}
 
@@ -427,12 +413,12 @@ def analyze_sql_tables(
                 database=None,
                 table=None,
                 sqlite_schema=sqlite_schema,
-                target=f"{arg1} {arg2}" if arg2 is not None else arg1,
+                target="{} {}".format(arg1, arg2) if arg2 is not None else arg1,
                 source=source,
             )
             return sqlite3.SQLITE_OK
 
-        action_name = _AUTHORIZER_ACTION_NAMES.get(action, f"SQLITE_{action}")
+        action_name = _AUTHORIZER_ACTION_NAMES.get(action, "SQLITE_{}".format(action))
         record(
             "unknown",
             "unknown",
@@ -495,24 +481,24 @@ def analyze_sql_tables(
                         conn, key.table, schema=key.sqlite_schema
                     )
     finally:
-        _disable_authorizer(conn)
+        conn.set_authorizer(None)
 
     has_schema_operation = any(
         key.target_type in {"table", "index", "view", "trigger", "virtual-table"}
         and key.operation in {"create", "alter", "drop"}
         for key in operations
     )
-    dropped_tables_and_views = {
+    dropped_tables = {
         (key.database, key.table)
         for key in operations
-        if key.operation == "drop" and key.target_type in {"table", "view"}
+        if key.operation == "drop" and key.target_type == "table"
     }
 
     def key_is_drop_table_delete(key: OperationKey) -> bool:
         return (
             key.operation == "delete"
             and key.target_type == "table"
-            and (key.database, key.table) in dropped_tables_and_views
+            and (key.database, key.table) in dropped_tables
         )
 
     has_user_table_access_in_schema_operation = any(
@@ -535,7 +521,9 @@ def analyze_sql_tables(
             and key.target in _SQLITE_INTERNAL_SCHEMA_FUNCTIONS
         ):
             return True
-        return bool(key_is_drop_table_delete(key))
+        if key_is_drop_table_delete(key):
+            return True
+        return False
 
     def table_kind_for(key: OperationKey) -> SQLiteTableType | None:
         if (
@@ -546,7 +534,7 @@ def analyze_sql_tables(
             return None
         return table_kind_cache[(key.sqlite_schema, key.table)]
 
-    analysis = SQLAnalysis(
+    return SQLAnalysis(
         operations=tuple(
             Operation(
                 operation=key.operation,
@@ -563,58 +551,3 @@ def analyze_sql_tables(
             for key, columns in operations.items()
         )
     )
-
-    # SQLite does not resolve the SELECT body of a view when preparing CREATE
-    # VIEW, so its authorizer does not report reads from the view's source
-    # tables. Temporarily create the view, analyze a query against it (which
-    # does resolve the body), then roll the schema change back. Database-level
-    # callers use an isolated writable connection for this analysis.
-    create_view_operations = tuple(
-        operation
-        for operation in analysis.operations
-        if operation.operation == "create" and operation.target_type == "view"
-    )
-    if not create_view_operations:
-        return analysis
-
-    savepoint = "datasette_analyze_create_view"
-    conn.execute(f"SAVEPOINT {savepoint}")
-    try:
-        conn.execute(sql, params if params is not None else {})
-        dependency_reads = []
-        for view_operation in create_view_operations:
-            if view_operation.sqlite_schema is None or view_operation.table is None:
-                raise sqlite3.OperationalError(
-                    "Could not determine the created view name"
-                )
-            quoted_schema = escape_sqlite(view_operation.sqlite_schema)
-            quoted_view = escape_sqlite(view_operation.table)
-            qualified_view = f"{quoted_schema}.{quoted_view}"
-            view_analysis = analyze_sql_tables(
-                conn,
-                f"SELECT * FROM {qualified_view}",
-                database_name=database_name,
-                schema_to_database=schema_to_database,
-            )
-            dependency_reads.extend(
-                operation
-                for operation in view_analysis.operations
-                if operation.operation == "read"
-                and not (
-                    operation.sqlite_schema == view_operation.sqlite_schema
-                    and operation.table == view_operation.table
-                )
-            )
-    finally:
-        conn.execute(f"ROLLBACK TO {savepoint}")
-        conn.execute(f"RELEASE {savepoint}")
-
-    existing_operations = set(analysis.operations)
-    return SQLAnalysis(
-        operations=analysis.operations
-        + tuple(
-            operation
-            for operation in dependency_reads
-            if operation not in existing_operations
-        )
-    )

datasette/utils/sqlite.py

@@ -15,17 +15,8 @@ if hasattr(sqlite3, "enable_callback_tracebacks"):
 _cached_sqlite_version = None
 _cached_supports_returning = None
 SQLiteTableType = Literal["table", "view", "virtual", "shadow"]
-_SQLITE_IDENTIFIER_RE = (
-    r"""(?:"(?:[^"]|"")*"|'(?:[^']|'')*'|`(?:[^`]|``)*`|\[[^\]]*\]|[^\s.()'"`\[\]]+)"""
-)
 _VIRTUAL_TABLE_MODULE_RE = re.compile(
-    r"^\s*CREATE\s+VIRTUAL\s+TABLE\b\s*(?:IF\s+NOT\s+EXISTS\s+)?"
-    + _SQLITE_IDENTIFIER_RE
-    + r"(?:\s*\.\s*"
-    + _SQLITE_IDENTIFIER_RE
-    + r")?\s*\bUSING\b\s*("
-    + _SQLITE_IDENTIFIER_RE
-    + r")",
+    r"\bCREATE\s+VIRTUAL\s+TABLE\b.*?\bUSING\s+([^\s(]+)",
     re.IGNORECASE | re.DOTALL,
 )
 _VIRTUAL_TABLE_SHADOW_SUFFIXES = {
@@ -92,58 +83,24 @@ def sqlite_table_type(
 ) -> SQLiteTableType | None:
     if supports_table_list():
         try:
-            # Use the "PRAGMA table_list" statement form rather than the
-            # pragma_table_list(...) table-valued function. The
-            # table-valued function is resolved like an ordinary relation
-            # name, so an attacker-created table or view literally named
-            # "pragma_table_list" can shadow it and spoof the reported
-            # type (e.g. claiming a virtual table is an ordinary table).
-            # The PRAGMA statement form is a distinct piece of SQL syntax
-            # that always invokes SQLite's built-in pragma, so it cannot
-            # be shadowed by a user-created relation.
+            query = "select type from pragma_table_list where name = ?"
+            params: tuple[str, ...] = (table,)
             if schema is not None:
-                query = f"PRAGMA {_quote_identifier(schema)}.table_list"
-            else:
-                query = "PRAGMA table_list"
-            cursor = conn.execute(query)
-            columns = [description[0] for description in cursor.description]
-            for row in cursor.fetchall():
-                record = dict(zip(columns, row))
-                if record.get("name") != table:
-                    continue
-                if schema is not None and record.get("schema") != schema:
-                    continue
-                row_type = record.get("type")
-                if row_type in {"table", "view", "virtual", "shadow"}:
-                    return row_type
+                query += " and schema = ?"
+                params = (table, schema)
+            row = conn.execute(query, params).fetchone()
+            if row is not None and row[0] in {"table", "view", "virtual", "shadow"}:
+                return row[0]
         except sqlite3.DatabaseError:
             pass
     return _sqlite_table_type_from_schema(conn, table, schema=schema)
 
 
-def check_structured_write_table(conn, table: str, *, allow_missing=False):
-    """Validate a row-write target on the connection that will perform the write."""
-    # SQLite resolves identifiers case-insensitively. The create API must not
-    # treat a differently cased existing name as a missing table.
-    row = conn.execute(
-        "select name from main.sqlite_master where name = ? collate nocase "
-        "and type in ('table', 'view')",
-        (table,),
-    ).fetchone()
-    if row is None and allow_missing:
-        return
-    if row is not None and sqlite_table_type(conn, row[0]) == "table":
-        return
-    # Virtual table modules can interpret row writes as administrative operations.
-    # Their shadow tables are internal storage, not independently writable data.
-    raise ValueError("Structured writes require an ordinary table")
-
-
 def sqlite_hidden_table_names(conn, *, schema: str | None = "main") -> list[str]:
     schema_table = _sqlite_schema_table(schema)
     try:
         rows = conn.execute(
-            f"select name, sql from {schema_table} where type = 'table'"
+            "select name, sql from {} where type = 'table'".format(schema_table)
         ).fetchall()
     except sqlite3.DatabaseError:
         return []
@@ -161,63 +118,6 @@ def sqlite_hidden_table_names(conn, *, schema: str | None = "main") -> list[str]
     return sorted(hidden_tables) + content_fts_tables
 
 
-def sqlite_derived_table_dependencies(
-    conn, *, schema: str | None = "main"
-) -> dict[str, str]:
-    """Return implementation table -> logical/content table dependencies.
-
-    ``PRAGMA table_list`` safely identifies virtual and shadow tables, but
-    does not report which virtual table owns a shadow table or which table is
-    named by an FTS ``content=`` option. Derive those relationships from
-    ``sqlite_master`` DDL and the documented shadow-table suffixes.
-
-    Database errors propagate: failed discovery must not be mistaken for an
-    empty dependency map and cached as permission to skip inheritance.
-    """
-    schema_table = _sqlite_schema_table(schema)
-    rows = conn.execute(
-        f"select name, sql from {schema_table} where type = 'table'"
-    ).fetchall()
-
-    table_names = {row[0] for row in rows}
-    # SQLite identifiers fold ASCII letters only.
-    identifier_case = str.maketrans(
-        "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "abcdefghijklmnopqrstuvwxyz"
-    )
-    canonical_names = {name.translate(identifier_case): name for name in table_names}
-    dependencies = {}
-    for virtual_table, sql in rows:
-        module = _virtual_table_module(sql)
-        if module is None:
-            continue
-
-        # SQLite's documented shadow tables are implementation details of
-        # their logical virtual table.
-        for suffix in _VIRTUAL_TABLE_SHADOW_SUFFIXES.get(module, ()):
-            shadow_table = virtual_table + suffix
-            if shadow_table in table_names:
-                dependencies[shadow_table] = virtual_table
-
-        # An external-content FTS table can expose values fetched from its
-        # content table, so it must also depend on that table's permission.
-        if module in {"fts3", "fts4", "fts5"}:
-            content_table = _fts_external_content_table(sql)
-            if content_table:
-                dependencies[virtual_table] = content_table
-
-        if module in {"fts5vocab", "fts4aux"}:
-            source = _fts_vocabulary_source(sql, module, schema or "main")
-            source = (
-                canonical_names.get(source.translate(identifier_case))
-                if source
-                else None
-            )
-            # An unresolved source is itself derived, so the one-hop policy denies it.
-            dependencies[virtual_table] = source or virtual_table
-
-    return dependencies
-
-
 def _sqlite_table_type_from_schema(
     conn,
     table: str,
@@ -227,7 +127,7 @@ def _sqlite_table_type_from_schema(
     schema_table = _sqlite_schema_table(schema)
     try:
         row = conn.execute(
-            f"select type, sql from {schema_table} where name = ?",
+            "select type, sql from {} where name = ?".format(schema_table),
             (table,),
         ).fetchone()
     except sqlite3.DatabaseError:
@@ -255,7 +155,7 @@ def _is_known_shadow_table(
     schema_table = _sqlite_schema_table(schema)
     try:
         rows = conn.execute(
-            f"select name, sql from {schema_table} where type = 'table'"
+            "select name, sql from {} where type = 'table'".format(schema_table)
         ).fetchall()
     except sqlite3.DatabaseError:
         return False
@@ -274,7 +174,7 @@ def _sqlite_schema_table(schema: str | None) -> str:
         return "sqlite_master"
     if schema == "temp":
         return "sqlite_temp_master"
-    return f"{_quote_identifier(schema)}.sqlite_master"
+    return "{}.sqlite_master".format(_quote_identifier(schema))
 
 
 def _quote_identifier(value: str) -> str:
@@ -284,151 +184,10 @@ def _quote_identifier(value: str) -> str:
 def _virtual_table_module(sql: str | None) -> str | None:
     if not sql:
         return None
-    match = _VIRTUAL_TABLE_MODULE_RE.search(_strip_sql_comments(sql))
-    if match is None:
-        return None
-    return _unquote_sql_value(match.group(1)).lower()
-
-
-def _fts_external_content_table(sql: str | None) -> str | None:
-    """Extract the external ``content=`` table from an FTS declaration."""
-    if not sql:
-        return None
-    sql = _strip_sql_comments(sql)
     match = _VIRTUAL_TABLE_MODULE_RE.search(sql)
     if match is None:
         return None
-    open_paren = sql.find("(", match.end())
-    if open_paren == -1:
-        return None
-    close_paren = sql.rfind(")")
-    if close_paren <= open_paren:
-        return None
-
-    for argument in _split_sql_arguments(sql[open_paren + 1 : close_paren]):
-        key, separator, value = argument.partition("=")
-        if not separator or key.strip().lower() != "content":
-            continue
-        return _unquote_sql_value(value.strip())
-    return None
-
-
-def _fts_vocabulary_source(sql: str, module: str, schema: str) -> str | None:
-    """Resolve a vocabulary source within the current SQLite schema.
-
-    Cross-schema sources cannot be represented by the dependency map and
-    are conservatively left unresolved.
-    """
-    sql = _strip_sql_comments(sql)
-    match = _VIRTUAL_TABLE_MODULE_RE.search(sql)
-    if match is None:
-        return None
-    start = sql.find("(", match.end())
-    end = sql.rfind(")")
-    if start < 0 or end <= start:
-        return None
-    arguments = [
-        _unquote_sql_value(arg.strip())
-        for arg in _split_sql_arguments(sql[start + 1 : end])
-    ]
-    expected = 2 if module == "fts5vocab" else 1
-    if len(arguments) == expected:
-        return arguments[0]
-    if len(arguments) == expected + 1 and arguments[0].lower() == schema.lower():
-        return arguments[1]
-    return None
-
-
-def _split_sql_arguments(arguments: str) -> list[str]:
-    """Split comma-separated SQLite arguments without splitting quoted text."""
-    parts = []
-    start = 0
-    quote = None
-    closing_quote = None
-    index = 0
-    while index < len(arguments):
-        char = arguments[index]
-        if quote is None:
-            if char in {"'", '"', "`", "["}:
-                quote = char
-                closing_quote = "]" if char == "[" else char
-            elif char == ",":
-                parts.append(arguments[start:index])
-                start = index + 1
-        elif char == closing_quote:
-            # Single/double/backtick quoting escapes the delimiter by
-            # doubling it. Square-bracket identifiers do not.
-            if (
-                quote != "["
-                and index + 1 < len(arguments)
-                and arguments[index + 1] == closing_quote
-            ):
-                index += 1
-            else:
-                quote = None
-                closing_quote = None
-        index += 1
-    parts.append(arguments[start:])
-    return parts
-
-
-def _strip_sql_comments(sql: str) -> str:
-    """Remove SQLite comments while preserving quoted strings/identifiers."""
-    output = []
-    quote = None
-    closing_quote = None
-    index = 0
-    while index < len(sql):
-        char = sql[index]
-        next_char = sql[index + 1] if index + 1 < len(sql) else ""
-        if quote is None:
-            if char in {"'", '"', "`", "["}:
-                quote = char
-                closing_quote = "]" if char == "[" else char
-                output.append(char)
-            elif char == "-" and next_char == "-":
-                index += 2
-                while index < len(sql) and sql[index] not in "\r\n":
-                    index += 1
-                output.append(" ")
-                continue
-            elif char == "/" and next_char == "*":
-                index += 2
-                while index + 1 < len(sql) and sql[index : index + 2] != "*/":
-                    index += 1
-                index = min(index + 2, len(sql))
-                output.append(" ")
-                continue
-            else:
-                output.append(char)
-        else:
-            output.append(char)
-            if char == closing_quote:
-                if (
-                    quote != "["
-                    and index + 1 < len(sql)
-                    and sql[index + 1] == closing_quote
-                ):
-                    output.append(sql[index + 1])
-                    index += 1
-                else:
-                    quote = None
-                    closing_quote = None
-        index += 1
-    return "".join(output)
-
-
-def _unquote_sql_value(value: str) -> str:
-    if len(value) < 2:
-        return value
-    pairs = {"'": "'", '"': '"', "`": "`", "[": "]"}
-    closing = pairs.get(value[0])
-    if closing is None or value[-1] != closing:
-        return value
-    unquoted = value[1:-1]
-    if value[0] != "[":
-        unquoted = unquoted.replace(closing * 2, closing)
-    return unquoted
+    return match.group(1).strip("\"'[]`").lower()
 
 
 def _is_fts_content_virtual_table(sql: str | None) -> bool:

datasette/utils/testing.py

@@ -1,10 +1,9 @@
-import json
-from urllib.parse import urlencode
-
 from asgiref.sync import async_to_sync
+from urllib.parse import urlencode
+import json
 
 # These wrapper classes pre-date the introduction of
-# datasette.client and httpx2 to Datasette. They could
+# datasette.client and httpx to Datasette. They could
 # be removed if the Datasette tests are modified to
 # call datasette.client directly.
 

datasette/version.py

@@ -1,2 +1,2 @@
-__version__ = "1.0a39"
+__version__ = "1.0a35"
 __version_info__ = tuple(__version__.split("."))

datasette/views/__init__.py

@@ -1,7 +1,7 @@
+from dataclasses import dataclass
 import dataclasses
 import types
 import typing
-from dataclasses import dataclass
 
 
 @dataclass(frozen=True)
@@ -74,14 +74,16 @@ class Context:
             extra_class = table_extra_registry.classes_by_name[name]
         except KeyError:
             raise KeyError(
-                f"{cls.__name__}.{name} is declared with from_extra() but there is no "
-                "registered extra of that name"
+                "{}.{} is declared with from_extra() but there is no "
+                "registered extra of that name".format(cls.__name__, name)
             )
         if cls.extras_scope is not None and not extra_class.available_for(
             cls.extras_scope
         ):
             raise ValueError(
-                f"{cls.__name__}.{name} is declared with from_extra() but the {name} extra is "
-                f"not available for scope {cls.extras_scope}"
+                "{}.{} is declared with from_extra() but the {} extra is "
+                "not available for scope {}".format(
+                    cls.__name__, name, name, cls.extras_scope
+                )
             )
         return extra_class.description or ""

datasette/views/base.py

@@ -2,20 +2,20 @@ import csv
 import hashlib
 import sys
 
+from datasette.utils.asgi import Request
 from datasette.utils import (
+    add_cors_headers,
     EscapeHtmlWriter,
     InvalidSql,
     LimitedWriter,
-    add_cors_headers,
     path_from_row_pks,
     path_with_format,
     sqlite3,
 )
 from datasette.utils.asgi import (
     AsgiStream,
-    BadRequest,
-    Request,
     Response,
+    BadRequest,
 )
 
 
@@ -28,15 +28,12 @@ class DatasetteError(Exception):
         status=500,
         template=None,
         message_is_html=False,
-        plain_message=None,
     ):
         self.message = message
         self.title = title
         self.error_dict = error_dict or {}
         self.status = status
         self.message_is_html = message_is_html
-        # Plain text used for JSON error responses when message is HTML
-        self.plain_message = plain_message
 
 
 class View:
@@ -52,7 +49,9 @@ class View:
             request.path.endswith(".json")
             or request.headers.get("content-type") == "application/json"
         ):
-            response = Response.error("Method not allowed", 405)
+            response = Response.json(
+                {"ok": False, "error": "Method not allowed"}, status=405
+            )
         else:
             response = Response.text("Method not allowed", status=405)
         return response
@@ -91,7 +90,9 @@ class BaseView:
             request.path.endswith(".json")
             or request.headers.get("content-type") == "application/json"
         ):
-            response = Response.error("Method not allowed", 405)
+            response = Response.json(
+                {"ok": False, "error": "Method not allowed"}, status=405
+            )
         else:
             response = Response.text("Method not allowed", status=405)
         return response
@@ -129,10 +130,12 @@ class BaseView:
         template = environment.select_template(templates)
         template_context = {
             **context,
-            "select_templates": [
-                f"{'*' if template_name == template.name else ''}{template_name}"
-                for template_name in templates
-            ],
+            **{
+                "select_templates": [
+                    f"{'*' if template_name == template.name else ''}{template_name}"
+                    for template_name in templates
+                ],
+            },
         }
         headers = {}
         if self.has_json_alternate:
@@ -149,7 +152,9 @@ class BaseView:
             template_context["alternate_url_json"] = alternate_url_json
             headers.update(
                 {
-                    "Link": f'<{alternate_url_json}>; rel="alternate"; type="application/json+datasette"'
+                    "Link": '<{}>; rel="alternate"; type="application/json+datasette"'.format(
+                        alternate_url_json
+                    )
                 }
             )
         return Response.html(
@@ -175,12 +180,18 @@ class BaseView:
         return view
 
 
+def _error(messages, status=400):
+    return Response.json({"ok": False, "errors": messages}, status=status)
+
+
 async def stream_csv(datasette, fetch_data, request, database):
     kwargs = {}
     stream = request.args.get("_stream")
     # Do not calculate facets or counts:
     extra_parameters = [
-        f"{key}=1" for key in ("_nofacet", "_nocount") if not request.args.get(key)
+        "{}=1".format(key)
+        for key in ("_nofacet", "_nocount")
+        if not request.args.get(key)
     ]
     if extra_parameters:
         # Replace request object with a new one with modified scope
@@ -210,6 +221,9 @@ async def stream_csv(datasette, fetch_data, request, database):
     except (sqlite3.OperationalError, InvalidSql) as e:
         raise DatasetteError(str(e), title="Invalid SQL", status=400)
 
+    except sqlite3.OperationalError as e:
+        raise DatasetteError(str(e))
+
     except DatasetteError:
         raise
 
@@ -316,9 +330,8 @@ async def stream_csv(datasette, fetch_data, request, database):
                             else:
                                 new_row.append(cell)
                         await writer.writerow(new_row)
-            except Exception as ex:  # noqa: BLE001
-                # Streaming CSV: report the error into the response body and stop
-                sys.stderr.write(f"Caught this error: {ex}\n")
+            except Exception as ex:
+                sys.stderr.write("Caught this error: {}\n".format(ex))
                 sys.stderr.flush()
                 await r.write(str(ex))
                 return

datasette/views/database.py

@@ -1,56 +1,48 @@
+from dataclasses import asdict, dataclass, field
+from urllib.parse import parse_qsl, urlencode
 import asyncio
 import hashlib
 import itertools
 import json
+import markupsafe
 import os
 import textwrap
-from dataclasses import asdict, dataclass, field
-from urllib.parse import parse_qsl, urlencode
-
-import markupsafe
 
+from datasette.extras import extra_names_from_request
 from datasette.database import QueryInterrupted
-from datasette.extras import ExtraScope, extra_names_from_request
-from datasette.plugins import pm
 from datasette.resources import DatabaseResource, QueryResource
 from datasette.stored_queries import StoredQuery, stored_query_to_dict
+from datasette.write_sql import QueryWriteRejected
 from datasette.utils import (
-    InvalidSql,
     add_cors_headers,
     await_me_maybe,
     call_with_supported_arguments,
-    error_body,
+    named_parameters as derive_named_parameters,
     format_bytes,
-    is_url,
     make_slot_function,
+    tilde_decode,
+    to_css_class,
+    validate_sql_select,
+    is_url,
     path_with_added_args,
     path_with_format,
     path_with_removed_args,
     sqlite3,
-    tilde_decode,
-    to_css_class,
     truncate_url,
-    validate_sql_select,
+    InvalidSql,
 )
-from datasette.utils import (
-    named_parameters as derive_named_parameters,
-)
-from datasette.utils.asgi import AsgiFileDownload, Forbidden, NotFound, Response
-from datasette.write_sql import QueryWriteRejected
+from datasette.utils.asgi import AsgiFileDownload, NotFound, Response, Forbidden
+from datasette.plugins import pm
 
-from . import Context
 from .base import DatasetteError, View, stream_csv
-from .query_helpers import (
-    _block_framing,
-    _ensure_stored_query_execution_permissions,
-    _table_columns,
-)
-from .table_create_alter import _create_table_ui_context
+from .query_helpers import _ensure_stored_query_execution_permissions, _table_columns
 from .table_extras import (
     QueryExtraContext,
     resolve_query_extras,
     table_extra_registry,
 )
+from .table_create_alter import _create_table_ui_context
+from . import Context
 
 
 @dataclass
@@ -107,7 +99,7 @@ class DatabaseView(View):
             return response
 
         if format_ not in ("html", "json"):
-            raise NotFound(f"Invalid format: {format_}")
+            raise NotFound("Invalid format: {}".format(format_))
 
         metadata = await datasette.get_database_metadata(database)
 
@@ -171,7 +163,7 @@ class DatabaseView(View):
                         "label": "Create table",
                         "description": "Create a new table in this database.",
                         "attrs": {
-                            "aria-label": f"Create table in {database}",
+                            "aria-label": "Create table in {}".format(database),
                             "data-database-action": "create-table",
                         },
                     }
@@ -278,7 +270,9 @@ class DatabaseView(View):
                 view_name="database",
             ),
             headers={
-                "Link": f'<{alternate_url_json}>; rel="alternate"; type="application/json+datasette"'
+                "Link": '<{}>; rel="alternate"; type="application/json+datasette"'.format(
+                    alternate_url_json
+                )
             },
         )
 
@@ -331,7 +325,7 @@ class DatabaseContext(Context):
     database_color: str = field(metadata={"help": "The color assigned to the database"})
     database_page_data: dict = field(
         metadata={
-            "help": 'JSON data used by JavaScript on the database page. Currently ``{}`` or ``{"createTable": {...}}`` where ``createTable`` includes ``path``, ``foreignKeyTargetsPath``, ``databaseName``, ``columnTypes``, ``defaultExpressions``, ``canInsertRows`` and optional ``customColumnTypes``.'
+            "help": 'JSON data used by JavaScript on the database page. Currently ``{}`` or ``{"createTable": {...}}`` where ``createTable`` includes ``path``, ``foreignKeyTargetsPath``, ``databaseName``, ``columnTypes``, ``defaultExpressions`` and optional ``customColumnTypes``.'
         }
     )
     database_actions: callable = field(
@@ -561,7 +555,7 @@ async def database_download(request, datasette):
     if datasette.cors:
         add_cors_headers(headers)
     if db.hash:
-        etag = f'"{db.hash}"'
+        etag = '"{}"'.format(db.hash)
         headers["Etag"] = etag
         # Has user seen this already?
         if_none_match = request.headers.get("if-none-match")
@@ -613,7 +607,11 @@ class QueryView(View):
                 "_json"
             ):
                 return Response.json(
-                    dict(error_body([ex.message], 403), redirect=None),
+                    {
+                        "ok": False,
+                        "message": ex.message,
+                        "redirect": None,
+                    },
                     status=403,
                 )
             datasette.add_message(request, ex.message, datasette.ERROR)
@@ -648,15 +646,8 @@ class QueryView(View):
         ok = None
         redirect_url = None
         try:
-            execute_write_kwargs = {"request": request}
-            if stored_query.is_trusted:
-                analysis = await db.analyze_sql(stored_query.sql, params_for_query)
-                if any(
-                    operation.operation == "vacuum" for operation in analysis.operations
-                ):
-                    execute_write_kwargs["transaction"] = False
             cursor = await db.execute_write(
-                stored_query.sql, params_for_query, **execute_write_kwargs
+                stored_query.sql, params_for_query, request=request
             )
             # success message can come from on_success_message or on_success_message_sql
             message = None
@@ -669,9 +660,8 @@ class QueryView(View):
                     ).first()
                     if message_result:
                         message = message_result[0]
-                except Exception as ex:  # noqa: BLE001
-                    # Stored-query on_success_message_sql is user-authored
-                    message = f"Error running on_success_message_sql: {ex}"
+                except Exception as ex:
+                    message = "Error running on_success_message_sql: {}".format(ex)
                     message_type = datasette.ERROR
             if not message:
                 if stored_query.on_success_message:
@@ -685,24 +675,18 @@ class QueryView(View):
 
             redirect_url = stored_query.on_success_redirect
             ok = True
-        except Exception as ex:  # noqa: BLE001
-            # Stored-query execution is user-authored SQL
+        except Exception as ex:
             message = stored_query.on_error_message or str(ex)
             message_type = datasette.ERROR
             redirect_url = stored_query.on_error_redirect
             ok = False
         if should_return_json:
-            if ok:
-                return Response.json(
-                    {
-                        "ok": True,
-                        "message": message,
-                        "redirect": redirect_url,
-                    }
-                )
             return Response.json(
-                dict(error_body([message], 400), redirect=redirect_url),
-                status=400,
+                {
+                    "ok": ok,
+                    "message": message,
+                    "redirect": redirect_url,
+                }
             )
         else:
             datasette.add_message(request, message, message_type)
@@ -820,23 +804,19 @@ class QueryView(View):
                 rows = results.rows
             except QueryInterrupted as ex:
                 raise DatasetteError(
-                    textwrap.dedent(f"""
+                    textwrap.dedent("""
                     <p>SQL query took too long. The time limit is controlled by the
                     <a href="https://docs.datasette.io/en/stable/settings.html#sql-time-limit-ms">sql_time_limit_ms</a>
                     configuration option.</p>
-                    <textarea style="width: 90%">{markupsafe.escape(ex.sql)}</textarea>
+                    <textarea style="width: 90%">{}</textarea>
                     <script>
                     let ta = document.querySelector("textarea");
                     ta.style.height = ta.scrollHeight + "px";
                     </script>
-                """).strip(),
+                """.format(markupsafe.escape(ex.sql))).strip(),
                     title="SQL Interrupted",
                     status=400,
                     message_is_html=True,
-                    plain_message=(
-                        "SQL query took too long. The time limit is"
-                        " controlled by the sql_time_limit_ms setting."
-                    ),
                 )
             except sqlite3.DatabaseError as ex:
                 query_error = str(ex)
@@ -845,6 +825,8 @@ class QueryView(View):
                 columns = []
             except (sqlite3.OperationalError, InvalidSql) as ex:
                 raise DatasetteError(str(ex), title="Invalid SQL", status=400)
+            except sqlite3.OperationalError as ex:
+                raise DatasetteError(str(ex))
             except DatasetteError:
                 raise
 
@@ -861,18 +843,14 @@ class QueryView(View):
                 raise DatasetteError("?sql= is required", status=400)
 
             async def fetch_data_for_csv(request, _next=None):
-                # Reuse the trusted magic parameter values prepared above.
-                results = await db.execute(sql, params_for_query, truncate=True)
+                results = await db.execute(sql, params, truncate=True)
                 data = {"rows": results.rows, "columns": results.columns}
                 return data, None, None
 
             return await stream_csv(datasette, fetch_data_for_csv, request, db.name)
-        elif format_ in datasette.renderers:
-            if not sql:
-                raise DatasetteError("?sql= is required", status=400)
+        elif format_ in datasette.renderers.keys():
             data = {"ok": True, "rows": rows, "columns": columns}
             extras = extra_names_from_request(request)
-            table_extra_registry.validate_requested(extras, ExtraScope.QUERY)
             if extras:
                 query_extra_context = QueryExtraContext(
                     datasette=datasette,
@@ -959,7 +937,9 @@ class QueryView(View):
             }
             headers.update(
                 {
-                    "Link": f'<{alternate_url_json}>; rel="alternate"; type="application/json+datasette"'
+                    "Link": '<{}>; rel="alternate"; type="application/json+datasette"'.format(
+                        alternate_url_json
+                    )
                 }
             )
             metadata = await query_metadata()
@@ -1040,7 +1020,9 @@ class QueryView(View):
                         + "?"
                         + urlencode(
                             {
-                                "sql": sql,
+                                **{
+                                    "sql": sql,
+                                },
                                 **named_parameter_values,
                             }
                         )
@@ -1142,11 +1124,9 @@ class QueryView(View):
                 headers=headers,
             )
         else:
-            assert False, f"Invalid format: {format_}"
+            assert False, "Invalid format: {}".format(format_)
         if datasette.cors:
             add_cors_headers(r.headers)
-        if stored_query_write and format_ == "html":
-            _block_framing(r)
         return r
 
 
@@ -1245,7 +1225,7 @@ async def display_rows(datasette, database, request, rows, columns):
                         '<a class="blob-download" href="{}"{}>&lt;Binary:&nbsp;{:,}&nbsp;byte{}&gt;</a>'.format(
                             blob_url,
                             (
-                                f' title="{formatted}"'
+                                ' title="{}"'.format(formatted)
                                 if "bytes" not in formatted
                                 else ""
                             ),

datasette/views/execute_write.py

@@ -1,16 +1,15 @@
 import re
 from urllib.parse import urlencode
 
-from datasette.database import QueryInterrupted
 from datasette.resources import DatabaseResource
-from datasette.utils import UNSTABLE_API_MESSAGE, sqlite3
+from datasette.utils import sqlite3
 from datasette.utils.asgi import Response
 
-from .base import BaseView
+from .base import BaseView, _error
 from .database import display_rows as display_query_rows
 from .query_helpers import (
-    SQL_PARAMETER_FORM_PREFIX,
     QueryValidationError,
+    SQL_PARAMETER_FORM_PREFIX,
     _analysis_is_write,
     _analysis_rows,
     _analysis_rows_with_permissions,
@@ -32,7 +31,15 @@ WRITE_TEMPLATE_LABELS = {
     "delete": "Delete rows",
 }
 WRITE_TEMPLATE_OPERATIONS = tuple(WRITE_TEMPLATE_LABELS)
-CREATE_TABLE_TEMPLATE_SQL = "create table new_table (\n  id integer primary key,\n  name text\n  -- created text default (datetime('now'))\n)"
+CREATE_TABLE_TEMPLATE_SQL = "\n".join(
+    (
+        "create table new_table (",
+        "  id integer primary key,",
+        "  name text",
+        "  -- created text default (datetime('now'))",
+        ")",
+    )
+)
 
 
 def _parameter_names(columns):
@@ -42,11 +49,11 @@ def _parameter_names(columns):
         base = re.sub(r"[^a-z0-9_]+", "_", column.lower())
         base = base.strip("_") or "value"
         if base[0].isdigit():
-            base = f"p_{base}"
+            base = "p_{}".format(base)
         name = base
         index = 2
         while name in seen:
-            name = f"{base}_{index}"
+            name = "{}_{}".format(base, index)
             index += 1
         seen.add(name)
         names[column] = name
@@ -58,7 +65,7 @@ def _quote_identifier(identifier):
 
 
 def _preferred_where_column(table, columns):
-    lower_table_id = f"{table.lower()}_id"
+    lower_table_id = "{}_id".format(table.lower())
     return (
         next((column for column in columns if column.lower() == "id"), None)
         or next(
@@ -83,15 +90,17 @@ def _insert_template_sql(table, columns):
     auto_pk = _auto_incrementing_primary_key(columns)
     insert_columns = [column for column in column_names if column != auto_pk]
     if not insert_columns:
-        return f"insert into {_quote_identifier(table)}\ndefault values"
+        return "insert into {}\ndefault values".format(_quote_identifier(table))
     names = _parameter_names(insert_columns)
     return "\n".join(
         (
-            f"insert into {_quote_identifier(table)} (",
-            ",\n".join(f"  {_quote_identifier(column)}" for column in insert_columns),
+            "insert into {} (".format(_quote_identifier(table)),
+            ",\n".join(
+                "  {}".format(_quote_identifier(column)) for column in insert_columns
+            ),
             ")",
             "values (",
-            ",\n".join(f"  :{names[column]}" for column in insert_columns),
+            ",\n".join("  :{}".format(names[column]) for column in insert_columns),
             ")",
         )
     )
@@ -105,14 +114,18 @@ def _update_template_sql(table, columns):
     if not set_columns:
         return "\n".join(
             (
-                f"update {_quote_identifier(table)}",
-                f"set {_quote_identifier(where_column)} = :new_{names[where_column]}",
-                f"where {_quote_identifier(where_column)} = :{names[where_column]}",
+                "update {}".format(_quote_identifier(table)),
+                "set {} = :new_{}".format(
+                    _quote_identifier(where_column), names[where_column]
+                ),
+                "where {} = :{}".format(
+                    _quote_identifier(where_column), names[where_column]
+                ),
             )
         )
     return "\n".join(
         (
-            f"update {_quote_identifier(table)}",
+            "update {}".format(_quote_identifier(table)),
             "set "
             + ",\n".join(
                 "{}{} = :{}".format(
@@ -122,7 +135,9 @@ def _update_template_sql(table, columns):
                 )
                 for index, column in enumerate(set_columns)
             ),
-            f"where {_quote_identifier(where_column)} = :{names[where_column]}",
+            "where {} = :{}".format(
+                _quote_identifier(where_column), names[where_column]
+            ),
         )
     )
 
@@ -133,8 +148,10 @@ def _delete_template_sql(table, columns):
     where_column = _preferred_where_column(table, column_names)
     return "\n".join(
         (
-            f"delete from {_quote_identifier(table)}",
-            f"where {_quote_identifier(where_column)} = :{names[where_column]}",
+            "delete from {}".format(_quote_identifier(table)),
+            "where {} = :{}".format(
+                _quote_identifier(where_column), names[where_column]
+            ),
         )
     )
 
@@ -331,7 +348,7 @@ class ExecuteWriteView(BaseView):
         )
         if not db.is_mutable:
             return _block_framing(
-                Response.error(
+                _error(
                     ["Cannot execute write SQL because this database is immutable."],
                     403,
                 )
@@ -350,10 +367,10 @@ class ExecuteWriteView(BaseView):
             actor=request.actor,
         ):
             return _block_framing(
-                Response.error(["Permission denied: need execute-write-sql"], 403)
+                _error(["Permission denied: need execute-write-sql"], 403)
             )
         if not db.is_mutable:
-            return _block_framing(Response.error(["Database is immutable"], 403))
+            return _block_framing(_error(["Database is immutable"], 403))
 
         data = {}
         is_json = request.headers.get("content-type", "").startswith("application/json")
@@ -367,7 +384,7 @@ class ExecuteWriteView(BaseView):
             )
         except QueryValidationError as ex:
             if _wants_json(request, is_json, data):
-                return _block_framing(Response.error([ex.message], ex.status))
+                return _block_framing(_error([ex.message], ex.status))
             if ex.flash:
                 self.ds.add_message(request, ex.message, self.ds.ERROR)
             return await self._render_form(
@@ -385,10 +402,10 @@ class ExecuteWriteView(BaseView):
         try:
             execute_write_kwargs = {"request": request}
             cursor = await db.execute_write(sql, params, **execute_write_kwargs)
-        except (QueryInterrupted, sqlite3.DatabaseError) as ex:
+        except sqlite3.DatabaseError as ex:
             message = str(ex)
             if wants_json:
-                return _block_framing(Response.error([message], 400))
+                return _block_framing(_error([message], 400))
             return await self._render_form(
                 request,
                 db,
@@ -471,18 +488,20 @@ class ExecuteWriteAnalyzeView(BaseView):
             actor=request.actor,
         ):
             return _block_framing(
-                Response.error(["Permission denied: need execute-write-sql"], 403)
+                _error(["Permission denied: need execute-write-sql"], 403)
             )
 
         invalid_keys = set(request.args) - {"sql"}
         if invalid_keys:
             return _block_framing(
-                Response.error(
+                _error(
                     ["Invalid keys: {}".format(", ".join(sorted(invalid_keys)))],
                     400,
                 )
             )
         sql = request.args.get("sql") or ""
-        analysis = await _execute_write_analysis_data(self.ds, db, sql, request.actor)
-        analysis["unstable"] = UNSTABLE_API_MESSAGE
-        return _block_framing(Response.json(analysis))
+        return _block_framing(
+            Response.json(
+                await _execute_write_analysis_data(self.ds, db, sql, request.actor)
+            )
+        )

datasette/views/index.py

@@ -2,11 +2,10 @@ import json
 
 from datasette.plugins import pm
 from datasette.utils import (
-    UNSTABLE_API_MESSAGE,
-    CustomJSONEncoder,
     add_cors_headers,
     await_me_maybe,
     make_slot_function,
+    CustomJSONEncoder,
 )
 from datasette.utils.asgi import Response
 from datasette.version import __version__
@@ -46,15 +45,15 @@ class IndexView(BaseView):
 
         databases = []
         # Iterate over allowed databases instead of all databases
-        for name, allowed_db in allowed_db_dict.items():
+        for name in allowed_db_dict.keys():
             db = self.ds.databases[name]
-            database_private = allowed_db.private
+            database_private = allowed_db_dict[name].private
 
             # Get allowed tables/views for this database
             allowed_for_db = tables_by_db.get(name, {})
 
             # Get table names from allowed set instead of db.table_names()
-            table_names = [child_name for child_name in allowed_for_db]
+            table_names = [child_name for child_name in allowed_for_db.keys()]
 
             hidden_table_names = set(await db.hidden_table_names())
 
@@ -99,7 +98,7 @@ class IndexView(BaseView):
                 # We will be sorting by number of relationships, so populate that field
                 all_foreign_keys = await db.get_all_foreign_keys()
                 for table, foreign_keys in all_foreign_keys.items():
-                    if table in tables:
+                    if table in tables.keys():
                         count = len(foreign_keys["incoming"] + foreign_keys["outgoing"])
                         tables[table]["num_relationships_for_sorting"] = count
 
@@ -121,7 +120,8 @@ class IndexView(BaseView):
             # Only add views if this is less than TRUNCATE_AT
             if len(tables_and_views_truncated) < TRUNCATE_AT:
                 num_views_to_add = TRUNCATE_AT - len(tables_and_views_truncated)
-                tables_and_views_truncated.extend(views[:num_views_to_add])
+                for view in views[:num_views_to_add]:
+                    tables_and_views_truncated.append(view)
 
             databases.append(
                 {
@@ -151,9 +151,7 @@ class IndexView(BaseView):
             return Response(
                 json.dumps(
                     {
-                        "ok": True,
-                        "unstable": UNSTABLE_API_MESSAGE,
-                        "databases": databases,
+                        "databases": {db["name"]: db for db in databases},
                         "metadata": await self.ds.get_instance_metadata(),
                     },
                     cls=CustomJSONEncoder,

datasette/views/query_helpers.py

@@ -5,19 +5,6 @@ from datasette.resources import DatabaseResource
 from datasette.stored_queries import (
     StoredQuery,
 )
-from datasette.utils import (
-    InvalidSql,
-    escape_sqlite,
-    parse_size_limit,
-    path_from_row_pks,
-    sqlite3,
-    validate_sql_select,
-)
-from datasette.utils import (
-    named_parameters as derive_named_parameters,
-)
-from datasette.utils.asgi import Forbidden
-from datasette.utils.sql_analysis import Operation, SQLAnalysis
 from datasette.write_sql import (
     IgnoreWriteSqlOperation,
     QueryWriteRejected,
@@ -25,6 +12,16 @@ from datasette.write_sql import (
     decision_for_write_sql_operation,
     operation_is_write,
 )
+from datasette.utils import (
+    named_parameters as derive_named_parameters,
+    escape_sqlite,
+    path_from_row_pks,
+    sqlite3,
+    validate_sql_select,
+    InvalidSql,
+)
+from datasette.utils.asgi import Forbidden
+from datasette.utils.sql_analysis import Operation, SQLAnalysis
 
 _query_name_re = re.compile(r"^[^/\.\n]+$")
 
@@ -35,6 +32,7 @@ _query_fields = {
     "hide_sql",
     "fragment",
     "parameters",
+    "params",
     "is_private",
     "on_success_message",
     "on_success_redirect",
@@ -93,14 +91,16 @@ def _as_optional_bool(value, name):
             return True
         if lowered in {"0", "false", "f", "no", "off"}:
             return False
-    raise QueryValidationError(f"{name} must be 0 or 1")
+    raise QueryValidationError("{} must be 0 or 1".format(name))
 
 
-def _query_list_limit(value, default, maximum):
+def _query_list_limit(value, default=50):
+    if value in (None, ""):
+        return default
     try:
-        return parse_size_limit(value, default, maximum)
+        return min(max(1, int(value)), 1000)
     except ValueError as ex:
-        raise QueryValidationError(str(ex)) from ex
+        raise QueryValidationError("_size must be an integer") from ex
 
 
 def _derived_query_parameters(sql):
@@ -173,7 +173,7 @@ async def _json_or_form_payload(request):
         try:
             return json.loads(body or b"{}"), True
         except json.JSONDecodeError as e:
-            raise QueryValidationError(f"Invalid JSON: {e}")
+            raise QueryValidationError("Invalid JSON: {}".format(e))
     return await request.post_vars(), False
 
 
@@ -194,7 +194,7 @@ async def _analyze_user_query(datasette, db, sql, *, actor):
     try:
         analysis = await db.analyze_sql(sql, params)
     except sqlite3.DatabaseError as ex:
-        raise QueryValidationError(f"Could not analyze query: {ex}") from ex
+        raise QueryValidationError("Could not analyze query: {}".format(ex)) from ex
 
     is_write = _analysis_is_write(analysis)
     if is_write:
@@ -295,7 +295,8 @@ def _coerce_execute_write_payload(data, is_json):
         for key, value in data.items():
             if key in {"sql", "csrftoken", "_json"}:
                 continue
-            key = key.removeprefix(SQL_PARAMETER_FORM_PREFIX)
+            if key.startswith(SQL_PARAMETER_FORM_PREFIX):
+                key = key[len(SQL_PARAMETER_FORM_PREFIX) :]
             params[key] = value
     if not isinstance(params, dict):
         raise QueryValidationError("params must be a dictionary")
@@ -315,7 +316,7 @@ async def _prepare_execute_write(datasette, db, sql, params, actor):
     try:
         analysis = await db.analyze_sql(sql, params)
     except sqlite3.DatabaseError as ex:
-        raise QueryValidationError(f"Could not analyze query: {ex}") from ex
+        raise QueryValidationError("Could not analyze query: {}".format(ex)) from ex
     if not _analysis_is_write(analysis):
         raise QueryValidationError(
             "Use /-/query for read-only SQL; this endpoint only executes writes"
@@ -497,7 +498,7 @@ async def _inserted_row_url(datasette, db, analysis, cursor):
     )
     try:
         result = await db.execute(
-            f"select {select} from {escape_sqlite(table)} where rowid = ?",
+            "select {} from {} where rowid = ?".format(select, escape_sqlite(table)),
             [lastrowid],
         )
     except sqlite3.DatabaseError:
@@ -540,7 +541,7 @@ async def _prepare_query_create(datasette, request, db, data):
         raise QueryValidationError("Writable query fields require writable SQL")
 
     parameters = _coerce_query_parameters(
-        data.get("parameters"),
+        data.get("parameters", data.get("params")),
         derived,
     )
     return {
@@ -585,9 +586,9 @@ async def _prepare_query_update(datasette, request, db, existing: StoredQuery, u
             actor=request.actor,
         )
 
-    if "parameters" in update:
+    if "parameters" in update or "params" in update:
         parameters = _coerce_query_parameters(
-            update.get("parameters"),
+            update.get("parameters", update.get("params")),
             derived,
         )
     elif "sql" in update:

datasette/views/row.py

@@ -8,37 +8,32 @@ from dataclasses import dataclass, field
 import markupsafe
 import sqlite_utils
 
+from datasette.utils.asgi import NotFound, Forbidden, Response
 from datasette.database import QueryInterrupted
-from datasette.events import DeleteRowEvent, UpdateRowEvent
-from datasette.extras import ExtraScope, extra_names_from_request
-from datasette.plugins import pm
+from datasette.events import UpdateRowEvent, DeleteRowEvent
 from datasette.resources import TableResource
+from .base import BaseView, DatasetteError, _error, stream_csv
 from datasette.utils import (
-    CustomJSONEncoder,
-    CustomRow,
-    InvalidSql,
-    WriteJsonValueError,
     add_cors_headers,
     await_me_maybe,
     call_with_supported_arguments,
-    decode_write_json_row,
-    escape_sqlite,
+    CustomRow,
+    InvalidSql,
     make_slot_function,
     path_from_row_pks,
+    path_with_added_args,
     path_with_format,
     path_with_removed_args,
-    sqlite3,
-    tilde_decode,
     to_css_class,
+    escape_sqlite,
+    sqlite3,
 )
-from datasette.utils.asgi import Forbidden, NotFound, PayloadTooLarge, Response
-from datasette.utils.sqlite import check_structured_write_table
-
+from datasette.plugins import pm
+from datasette.extras import extra_names_from_request, ExtraScope
 from . import Context, from_extra
-from .base import BaseView, DatasetteError, stream_csv
 from .table import (
-    _table_page_data,
     display_columns_and_rows,
+    _table_page_data,
     row_label_from_label_column,
 )
 from .table_extras import RowExtraContext, resolve_row_extras, table_extra_registry
@@ -139,12 +134,6 @@ class RowContext(Context):
     )
 
 
-async def _database_and_table_resource_from_request(datasette, request):
-    db = await datasette.resolve_database(request)
-    table = tilde_decode(request.url_vars["table"])
-    return db, table, TableResource(database=db.name, table=table)
-
-
 class RowView(BaseView):
     name = "row"
 
@@ -196,33 +185,43 @@ class RowView(BaseView):
                 data, extra_template_data, templates = response_or_template_contexts
         except QueryInterrupted as ex:
             raise DatasetteError(
-                textwrap.dedent(f"""
+                textwrap.dedent("""
                 <p>SQL query took too long. The time limit is controlled by the
                 <a href="https://docs.datasette.io/en/stable/settings.html#sql-time-limit-ms">sql_time_limit_ms</a>
                 configuration option.</p>
-                <textarea style="width: 90%">{markupsafe.escape(ex.sql)}</textarea>
+                <textarea style="width: 90%">{}</textarea>
                 <script>
                 let ta = document.querySelector("textarea");
                 ta.style.height = ta.scrollHeight + "px";
                 </script>
-            """).strip(),
+            """.format(markupsafe.escape(ex.sql))).strip(),
                 title="SQL Interrupted",
                 status=400,
                 message_is_html=True,
-                plain_message=(
-                    "SQL query took too long. The time limit is"
-                    " controlled by the sql_time_limit_ms setting."
-                ),
             )
         except (sqlite3.OperationalError, InvalidSql) as e:
             raise DatasetteError(str(e), title="Invalid SQL", status=400)
+        except sqlite3.OperationalError as e:
+            raise DatasetteError(str(e))
         except DatasetteError:
             raise
 
         end = time.perf_counter()
         data["query_ms"] = (end - start) * 1000
 
-        if format_ in self.ds.renderers:
+        # Special case for .jsono extension - redirect to _shape=objects
+        if format_ == "jsono":
+            return self.redirect(
+                request,
+                path_with_added_args(
+                    request,
+                    {"_shape": "objects"},
+                    path=request.path.rsplit(".jsono", 1)[0] + ".json",
+                ),
+                forward_querystring=False,
+            )
+
+        if format_ in self.ds.renderers.keys():
             # Dispatch request to the correct output format renderer
             # (CSV is not handled here due to streaming)
             result = call_with_supported_arguments(
@@ -265,13 +264,13 @@ class RowView(BaseView):
             if status_code is not None:
                 response.status = status_code
         else:
-            raise NotFound(f"Invalid format: {format_}")
+            raise NotFound("Invalid format: {}".format(format_))
 
         ttl = request.args.get("_ttl", None)
         if ttl is None or not ttl.isdigit():
             ttl = self.ds.setting("default_cache_ttl")
 
-        return self.set_response_headers(response, ttl, request)
+        return self.set_response_headers(response, ttl)
 
     async def html(self, request, data, extra_template_data, templates):
         extras = {}
@@ -380,54 +379,42 @@ class RowView(BaseView):
                 view_name=self.name,
             ),
             headers={
-                "Link": f'<{alternate_url_json}>; rel="alternate"; type="application/json+datasette"'
+                "Link": '<{}>; rel="alternate"; type="application/json+datasette"'.format(
+                    alternate_url_json
+                )
             },
         )
 
-    def set_response_headers(self, response, ttl, request=None):
-        private = getattr(request, "_datasette_private_response", False)
+    def set_response_headers(self, response, ttl):
         # Set far-future cache expiry
         if self.ds.cache_headers and response.status == 200:
-            if private:
-                # This response is only visible to the current actor (denied
-                # to anonymous requests), so it must never be stored by a
-                # shared cache/CDN - and ?_ttl= must not override that.
-                response.headers["Cache-Control"] = "private, no-store"
-                response.headers["Vary"] = "Cookie"
+            ttl = int(ttl)
+            if ttl == 0:
+                ttl_header = "no-cache"
             else:
-                ttl = int(ttl)
-                if ttl == 0:
-                    ttl_header = "no-cache"
-                else:
-                    ttl_header = f"max-age={ttl}"
-                response.headers["Cache-Control"] = ttl_header
+                ttl_header = f"max-age={ttl}"
+            response.headers["Cache-Control"] = ttl_header
         response.headers["Referrer-Policy"] = "no-referrer"
         if self.ds.cors:
             add_cors_headers(response.headers)
         return response
 
     async def data(self, request, default_labels=False):
-        db, table, resource = await _database_and_table_resource_from_request(
-            self.ds, request
-        )
+        resolved = await self.ds.resolve_row(request)
+        db = resolved.db
         database = db.name
+        table = resolved.table
+        pk_values = resolved.pk_values
 
-        # Check the URL resource before resolving the row, so a denied request
-        # cannot distinguish an existing primary key from a missing one.
+        # Ensure user has permission to view this row
         visible, private = await self.ds.check_visibility(
             request.actor,
             action="view-table",
-            resource=resource,
+            resource=TableResource(database=database, table=table),
         )
         if not visible:
             raise Forbidden("You do not have permission to view this table")
-        # Record whether this response is private (visible to this actor
-        # only) so set_response_headers() can set appropriate Cache-Control
-        # headers, regardless of which output format ends up being rendered.
-        request._datasette_private_response = private
 
-        resolved = await self.ds.resolve_row(request)
-        pk_values = resolved.pk_values
         results = await resolved.db.execute(
             resolved.sql, resolved.params, truncate=True
         )
@@ -504,8 +491,8 @@ class RowView(BaseView):
             for row in display_rows:
                 for cell in row:
                     if cell["column"] in pk_set:
-                        cell["value"] = markupsafe.Markup("<strong>{}</strong>").format(
-                            cell["value"]
+                        cell["value"] = markupsafe.Markup(
+                            "<strong>{}</strong>".format(cell["value"])
                         )
 
             label_column = await db.label_column_for_table(table) if is_table else None
@@ -519,7 +506,7 @@ class RowView(BaseView):
 
             row_action_label = pk_path
             if row_label and row_label != pk_path:
-                row_action_label = f"{pk_path} {row_label}"
+                row_action_label = "{} {}".format(pk_path, row_label)
 
             row_action_permissions = {}
             if is_table and db.is_mutable:
@@ -532,7 +519,7 @@ class RowView(BaseView):
             row_actions = []
             if row_action_permissions.get("update-row"):
                 attrs = {
-                    "aria-label": f"Edit row {row_action_label}",
+                    "aria-label": "Edit row {}".format(row_action_label),
                     "data-row": row_path,
                     "data-row-action": "edit",
                 }
@@ -548,7 +535,7 @@ class RowView(BaseView):
                 )
             if row_action_permissions.get("delete-row"):
                 attrs = {
-                    "aria-label": f"Delete row {row_action_label}",
+                    "aria-label": "Delete row {}".format(row_action_label),
                     "data-row": row_path,
                     "data-row-action": "delete",
                 }
@@ -578,7 +565,7 @@ class RowView(BaseView):
                 "private": private,
                 "columns": reordered_columns,
                 "foreign_key_tables": await self.foreign_key_tables(
-                    database, table, pk_values, actor=request.actor
+                    database, table, pk_values
                 ),
                 "database_color": db.color,
                 "display_columns": display_columns,
@@ -622,9 +609,6 @@ class RowView(BaseView):
         }
 
         extras = extra_names_from_request(request)
-        if request.url_vars.get("format"):
-            # Data formats reject unknown extras; HTML ignores them
-            table_extra_registry.validate_requested(extras, ExtraScope.ROW)
 
         # Process extras
         row_extra_context = RowExtraContext(
@@ -655,23 +639,12 @@ class RowView(BaseView):
             ),
         )
 
-    async def foreign_key_tables(self, database, table, pk_values, *, actor):
+    async def foreign_key_tables(self, database, table, pk_values):
         if len(pk_values) != 1:
             return []
         db = self.ds.databases[database]
         all_foreign_keys = await db.get_all_foreign_keys()
-        foreign_keys = []
-        table_permissions = {}
-        for fk in all_foreign_keys[table]["incoming"]:
-            other_table = fk["other_table"]
-            if other_table not in table_permissions:
-                table_permissions[other_table] = await self.ds.allowed(
-                    action="view-table",
-                    resource=TableResource(database=database, table=other_table),
-                    actor=actor,
-                )
-            if table_permissions[other_table]:
-                foreign_keys.append(fk)
+        foreign_keys = all_foreign_keys[table]["incoming"]
         if len(foreign_keys) == 0:
             return []
 
@@ -709,7 +682,7 @@ class RowView(BaseView):
                 key,
                 ",".join(pk_values),
             )
-            foreign_key_tables.append({**fk, "count": count, "link": link})
+            foreign_key_tables.append({**fk, **{"count": count, "link": link}})
         return foreign_key_tables
 
 
@@ -728,57 +701,36 @@ def _truncated_row_flash_label(label):
     return label[: ROW_FLASH_LABEL_MAX_LENGTH - 1] + "\u2026"
 
 
-async def _row_flash_message(
-    datasette, request, action, resolved, row=None, *, refresh_row=False
-):
+async def _row_flash_message(db, action, resolved, row=None):
     pk_label = ", ".join(resolved.pk_values)
-    # Mutation permission does not grant access to stored row labels.
-    if not await datasette.allowed(
-        action="view-table",
-        resource=TableResource(database=resolved.db.name, table=resolved.table),
-        actor=request.actor,
-    ):
-        return f"{action} row {pk_label}"
-
-    if refresh_row and row is None:
-        results = await resolved.db.execute(
-            resolved.sql, resolved.params, truncate=True
-        )
-        row = results.first()
-    label_column = await resolved.db.label_column_for_table(resolved.table)
+    label_column = await db.label_column_for_table(resolved.table)
     label = row_label_from_label_column(row or resolved.row, label_column)
     if label:
         label = _truncated_row_flash_label(label)
     if label and label != pk_label:
-        return f"{action} row {pk_label} ({label})"
-    return f"{action} row {pk_label}"
+        return "{} row {} ({})".format(action, pk_label, label)
+    return "{} row {}".format(action, pk_label)
 
 
 async def _resolve_row_and_check_permission(datasette, request, permission):
-    from datasette.app import DatabaseNotFound, RowNotFound, TableNotFound
-
-    try:
-        _, _, resource = await _database_and_table_resource_from_request(
-            datasette, request
-        )
-    except DatabaseNotFound as e:
-        return False, Response.error([f"Database not found: {e.database_name}"], 404)
-
-    # Check the URL resource before resolving the row, so a denied request
-    # cannot distinguish an existing primary key from a missing one.
-    if not await datasette.allowed(
-        action=permission,
-        resource=resource,
-        actor=request.actor,
-    ):
-        return False, Response.error(["Permission denied"], 403)
+    from datasette.app import DatabaseNotFound, TableNotFound, RowNotFound
 
     try:
         resolved = await datasette.resolve_row(request)
+    except DatabaseNotFound as e:
+        return False, _error(["Database not found: {}".format(e.database_name)], 404)
     except TableNotFound as e:
-        return False, Response.error([f"Table not found: {e.table}"], 404)
+        return False, _error(["Table not found: {}".format(e.table)], 404)
     except RowNotFound as e:
-        return False, Response.error([f"Record not found: {e.pk_values}"], 404)
+        return False, _error(["Record not found: {}".format(e.pk_values)], 404)
+
+    # Ensure user has permission to delete this row
+    if not await datasette.allowed(
+        action=permission,
+        resource=TableResource(database=resolved.db.name, table=resolved.table),
+        actor=request.actor,
+    ):
+        return False, _error(["Permission denied"], 403)
 
     return True, resolved
 
@@ -798,14 +750,12 @@ class RowDeleteView(BaseView):
 
         # Delete table
         def delete_row(conn):
-            check_structured_write_table(conn, resolved.table)
             sqlite_utils.Database(conn)[resolved.table].delete(resolved.pk_values)
 
         try:
             await resolved.db.execute_write_fn(delete_row, request=request)
-        except Exception as e:  # noqa: BLE001
-            # TODO: narrow to expected write errors so Datasette bugs surface as 500s
-            return Response.error([str(e)], 400)
+        except Exception as e:
+            return _error([str(e)], 500)
 
         await self.ds.track_event(
             DeleteRowEvent(
@@ -820,7 +770,7 @@ class RowDeleteView(BaseView):
             table_url = self.ds.urls.table(resolved.db.name, resolved.table)
             self.ds.add_message(
                 request,
-                await _row_flash_message(self.ds, request, "Deleted", resolved),
+                await _row_flash_message(resolved.db, "Deleted", resolved),
                 self.ds.INFO,
             )
             return Response.json({"ok": True, "redirect": str(table_url)}, status=200)
@@ -844,24 +794,18 @@ class RowUpdateView(BaseView):
         try:
             data = await request.json()
         except json.JSONDecodeError as e:
-            return Response.error([f"Invalid JSON: {e}"])
-        except PayloadTooLarge as e:
-            return Response.error([str(e)], 413)
+            return _error(["Invalid JSON: {}".format(e)])
 
         if not isinstance(data, dict):
-            return Response.error(["JSON must be a dictionary"])
+            return _error(["JSON must be a dictionary"])
         if "update" not in data or not isinstance(data["update"], dict):
-            return Response.error(["JSON must contain an update dictionary"])
+            return _error(["JSON must contain an update dictionary"])
 
         invalid_keys = set(data.keys()) - {"update", "return", "alter"}
         if invalid_keys:
-            return Response.error(["Invalid keys: {}".format(", ".join(invalid_keys))])
+            return _error(["Invalid keys: {}".format(", ".join(invalid_keys))])
 
         update = data["update"]
-        try:
-            update = decode_write_json_row(update)
-        except WriteJsonValueError as e:
-            return Response.error([str(e)], 400)
 
         # Validate column types
         from datasette.views.table import _validate_column_types
@@ -870,7 +814,7 @@ class RowUpdateView(BaseView):
             self.ds, resolved.db.name, resolved.table, [update]
         )
         if ct_errors:
-            return Response.error(ct_errors, 400)
+            return _error(ct_errors, 400)
 
         alter = data.get("alter")
         if alter and not await self.ds.allowed(
@@ -878,35 +822,26 @@ class RowUpdateView(BaseView):
             resource=TableResource(database=resolved.db.name, table=resolved.table),
             actor=request.actor,
         ):
-            return Response.error(["Permission denied for alter-table"], 403)
+            return _error(["Permission denied for alter-table"], 403)
 
         def update_row(conn):
-            check_structured_write_table(conn, resolved.table)
             sqlite_utils.Database(conn)[resolved.table].update(
                 resolved.pk_values, update, alter=alter
             )
 
         try:
             await resolved.db.execute_write_fn(update_row, request=request)
-        except Exception as e:  # noqa: BLE001
-            # TODO: narrow to expected write errors so Datasette bugs surface as 500s
-            return Response.error([str(e)], 400)
+        except Exception as e:
+            return _error([str(e)], 400)
 
         result = {"ok": True}
         returned_row = None
-        # Only read back and disclose the stored row if the actor is also
-        # allowed to view this table - update-row alone must not be usable
-        # to read data the actor cannot otherwise see.
-        if data.get("return") and await self.ds.allowed(
-            action="view-table",
-            resource=TableResource(database=resolved.db.name, table=resolved.table),
-            actor=request.actor,
-        ):
+        if data.get("return"):
             results = await resolved.db.execute(
                 resolved.sql, resolved.params, truncate=True
             )
             returned_row = results.dicts()[0]
-            result["rows"] = [returned_row]
+            result["row"] = returned_row
 
         await self.ds.track_event(
             UpdateRowEvent(
@@ -918,17 +853,18 @@ class RowUpdateView(BaseView):
         )
 
         if request.args.get("_message"):
+            message_row = returned_row
+            if message_row is None:
+                results = await resolved.db.execute(
+                    resolved.sql, resolved.params, truncate=True
+                )
+                message_row = results.first()
             self.ds.add_message(
                 request,
                 await _row_flash_message(
-                    self.ds,
-                    request,
-                    "Updated",
-                    resolved,
-                    row=returned_row,
-                    refresh_row=True,
+                    resolved.db, "Updated", resolved, row=message_row
                 ),
                 self.ds.INFO,
             )
 
-        return Response.json(result, status=200, default=CustomJSONEncoder().default)
+        return Response.json(result, status=200)

datasette/views/special.py

@@ -1,25 +1,20 @@
 import json
 import logging
-import secrets
-import urllib
-
-from datasette.events import CreateTokenEvent, LoginEvent, LogoutEvent
 from datasette.jump import JumpSQL, namespace_sql_params
 from datasette.plugins import pm
+from datasette.events import LogoutEvent, LoginEvent, CreateTokenEvent
 from datasette.resources import DatabaseResource, TableResource
+from datasette.utils.asgi import Response, Forbidden
 from datasette.utils import (
-    UNSTABLE_API_MESSAGE,
     actor_matches_allow,
     add_cors_headers,
     await_me_maybe,
-    error_body,
-    parse_size_limit,
-    tilde_decode,
     tilde_encode,
+    tilde_decode,
 )
-from datasette.utils.asgi import Forbidden, Response
-
 from .base import BaseView, View
+import secrets
+import urllib
 
 logger = logging.getLogger(__name__)
 
@@ -57,9 +52,9 @@ class JsonDataView(BaseView):
         if self.permission:
             await self.ds.ensure_permission(action=self.permission, actor=request.actor)
         if self.needs_request:
-            data = await await_me_maybe(self.data_callback(request))
+            data = self.data_callback(request)
         else:
-            data = await await_me_maybe(self.data_callback())
+            data = self.data_callback()
 
         # Return JSON or HTML depending on format parameter
         as_format = request.url_vars.get("format")
@@ -67,8 +62,6 @@ class JsonDataView(BaseView):
             headers = {}
             if self.ds.cors:
                 add_cors_headers(headers)
-            if isinstance(data, dict):
-                data = {"ok": True, **data}
             return Response.json(data, headers=headers)
         else:
             context = {
@@ -181,7 +174,9 @@ class AutocompleteDebugView(BaseView):
                     )
                     context.update(
                         {
-                            "autocomplete_url": f"{self.ds.urls.table(database_name, table_name)}/-/autocomplete",
+                            "autocomplete_url": "{}/-/autocomplete".format(
+                                self.ds.urls.table(database_name, table_name)
+                            ),
                             "label_column": await db.label_column_for_table(table_name),
                         }
                     )
@@ -297,12 +292,6 @@ class PermissionsDebugView(BaseView):
         response, status = await _check_permission_for_actor(
             self.ds, permission, parent, child, actor
         )
-        if response.get("ok"):
-            response = {
-                "ok": True,
-                "unstable": UNSTABLE_API_MESSAGE,
-                **response,
-            }
         return Response.json(response, status=status)
 
 
@@ -311,7 +300,6 @@ class AllowedResourcesView(BaseView):
     has_json_alternate = False
 
     async def get(self, request):
-        await self.ds.ensure_permission(action="view-instance", actor=request.actor)
         await self.ds.refresh_schemas()
 
         # Check if user has permissions-debug (to show sensitive fields)
@@ -360,32 +348,29 @@ class AllowedResourcesView(BaseView):
     async def _allowed_payload(self, request, has_debug_permission):
         action = request.args.get("action")
         if not action:
-            return error_body("action parameter is required", 400), 400
+            return {"error": "action parameter is required"}, 400
         if action not in self.ds.actions:
-            return error_body(f"Unknown action: {action}", 404), 404
+            return {"error": f"Unknown action: {action}"}, 404
 
         actor = request.actor if isinstance(request.actor, dict) else None
         actor_id = actor.get("id") if actor else None
         parent_filter = request.args.get("parent")
         child_filter = request.args.get("child")
         if child_filter and not parent_filter:
-            return (
-                error_body("parent must be provided when child is specified", 400),
-                400,
-            )
+            return {"error": "parent must be provided when child is specified"}, 400
 
         try:
-            page = int(request.args.get("_page", "1"))
-            if page < 1:
-                raise ValueError
+            page = int(request.args.get("page", "1"))
+            page_size = int(request.args.get("page_size", "50"))
         except ValueError:
-            return error_body("_page must be a positive integer", 400), 400
-        try:
-            page_size = parse_size_limit(
-                request.args.get("_size"), default=50, maximum=200
-            )
-        except ValueError as ex:
-            return error_body(str(ex), 400), 400
+            return {"error": "page and page_size must be integers"}, 400
+        if page < 1:
+            return {"error": "page must be >= 1"}, 400
+        if page_size < 1:
+            return {"error": "page_size must be >= 1"}, 400
+        max_page_size = 200
+        if page_size > max_page_size:
+            page_size = max_page_size
         offset = (page - 1) * page_size
 
         # Use the simplified allowed_resources method
@@ -421,14 +406,10 @@ class AllowedResourcesView(BaseView):
                     row["reason"] = resource.reasons
 
                 allowed_rows.append(row)
-        except Exception:  # noqa: BLE001
-            # Returns empty results if the catalog tables don't exist yet, but
-            # also swallows the AttributeError raised for instance-level actions
-            # such as view-instance, which have no resource_class.
-            # TODO: handle that case explicitly and narrow this to sqlite3.Error
+        except Exception:
+            # If catalog tables don't exist yet, return empty results
             return (
                 {
-                    "ok": True,
                     "action": action,
                     "actor_id": actor_id,
                     "page": page,
@@ -453,17 +434,16 @@ class AllowedResourcesView(BaseView):
         def build_page_url(page_number):
             pairs = []
             for key in request.args:
-                if key in {"_page", "_size"}:
+                if key in {"page", "page_size"}:
                     continue
                 for value in request.args.getlist(key):
                     pairs.append((key, value))
-            pairs.append(("_page", str(page_number)))
-            pairs.append(("_size", str(page_size)))
+            pairs.append(("page", str(page_number)))
+            pairs.append(("page_size", str(page_size)))
             query = urllib.parse.urlencode(pairs)
             return f"{request.path}?{query}"
 
         response = {
-            "ok": True,
             "action": action,
             "actor_id": actor_id,
             "page": page,
@@ -505,29 +485,31 @@ class PermissionRulesView(BaseView):
         # JSON API - action parameter is required
         action = request.args.get("action")
         if not action:
-            return Response.error("action parameter is required", 400)
+            return Response.json({"error": "action parameter is required"}, status=400)
         if action not in self.ds.actions:
-            return Response.error(f"Unknown action: {action}", 404)
+            return Response.json({"error": f"Unknown action: {action}"}, status=404)
 
         actor = request.actor if isinstance(request.actor, dict) else None
 
         try:
-            page = int(request.args.get("_page", "1"))
-            if page < 1:
-                raise ValueError
+            page = int(request.args.get("page", "1"))
+            page_size = int(request.args.get("page_size", "50"))
         except ValueError:
-            return Response.error("_page must be a positive integer", 400)
-        try:
-            page_size = parse_size_limit(
-                request.args.get("_size"), default=50, maximum=200
+            return Response.json(
+                {"error": "page and page_size must be integers"}, status=400
             )
-        except ValueError as ex:
-            return Response.error(str(ex), 400)
+        if page < 1:
+            return Response.json({"error": "page must be >= 1"}, status=400)
+        if page_size < 1:
+            return Response.json({"error": "page_size must be >= 1"}, status=400)
+        max_page_size = 200
+        if page_size > max_page_size:
+            page_size = max_page_size
         offset = (page - 1) * page_size
 
         from datasette.utils.actions_sql import build_permission_rules_sql
 
-        union_sql, union_params, _restriction_sqls = await build_permission_rules_sql(
+        union_sql, union_params, restriction_sqls = await build_permission_rules_sql(
             self.ds, actor, action
         )
         await self.ds.refresh_schemas()
@@ -573,17 +555,16 @@ class PermissionRulesView(BaseView):
         def build_page_url(page_number):
             pairs = []
             for key in request.args:
-                if key in {"_page", "_size"}:
+                if key in {"page", "page_size"}:
                     continue
                 for value in request.args.getlist(key):
                     pairs.append((key, value))
-            pairs.append(("_page", str(page_number)))
-            pairs.append(("_size", str(page_size)))
+            pairs.append(("page", str(page_number)))
+            pairs.append(("page_size", str(page_size)))
             query = urllib.parse.urlencode(pairs)
             return f"{request.path}?{query}"
 
         response = {
-            "ok": True,
             "action": action,
             "actor_id": (actor or {}).get("id") if actor else None,
             "page": page,
@@ -604,17 +585,17 @@ class PermissionRulesView(BaseView):
 
 
 async def _check_permission_for_actor(ds, action, parent, child, actor):
-    """Shared logic for checking and explaining a permission decision."""
+    """Shared logic for checking permissions. Returns a dict with check results."""
     if action not in ds.actions:
-        return error_body(f"Unknown action: {action}", 404), 404
+        return {"error": f"Unknown action: {action}"}, 404
 
     if child and not parent:
-        return error_body("parent is required when child is provided", 400), 400
+        return {"error": "parent is required when child is provided"}, 400
 
     # Use the action's properties to create the appropriate resource object
     action_obj = ds.actions.get(action)
     if not action_obj:
-        return error_body(f"Unknown action: {action}", 400), 400
+        return {"error": f"Unknown action: {action}"}, 400
 
     # Global actions (no resource_class) don't have a resource
     if action_obj.resource_class is None:
@@ -629,32 +610,18 @@ async def _check_permission_for_actor(ds, action, parent, child, actor):
         resource_obj = action_obj.resource_class(parent)
     else:
         # This shouldn't happen given validation in Action.__post_init__
-        return error_body(f"Invalid action configuration: {action}", 500), 500
+        return {"error": f"Invalid action configuration: {action}"}, 500
 
     allowed = await ds.allowed(action=action, resource=resource_obj, actor=actor)
 
-    from datasette.utils.actions_sql import explain_permission_for_resource
-
-    explanation = await explain_permission_for_resource(
-        datasette=ds,
-        actor=actor,
-        action=action,
-        parent=parent,
-        child=child,
-    )
-
     response = {
-        "ok": True,
-        "unstable": UNSTABLE_API_MESSAGE,
         "action": action,
         "allowed": bool(allowed),
-        "actor": actor,
         "resource": {
             "parent": parent,
             "child": child,
             "path": _resource_path(parent, child),
         },
-        "explanation": explanation,
     }
 
     if actor and "id" in actor:
@@ -672,25 +639,11 @@ class PermissionCheckView(BaseView):
         as_format = request.url_vars.get("format")
 
         if not as_format:
-            actions = [
-                {
-                    "name": action.name,
-                    "description": action.description,
-                    "takes_parent": action.takes_parent,
-                    "takes_child": action.takes_child,
-                    "also_requires": action.also_requires,
-                }
-                for action in sorted(
-                    self.ds.actions.values(), key=lambda action: action.name
-                )
-            ]
             return await self.render(
                 ["debug_check.html"],
                 request,
                 {
-                    "actions": actions,
-                    "actor_json": request.args.get("actor")
-                    or json.dumps(request.actor, indent=2),
+                    "sorted_actions": sorted(self.ds.actions.keys()),
                     "has_debug_permission": True,
                 },
             )
@@ -698,22 +651,13 @@ class PermissionCheckView(BaseView):
         # JSON API - action parameter is required
         action = request.args.get("action")
         if not action:
-            return Response.error("action parameter is required", 400)
+            return Response.json({"error": "action parameter is required"}, status=400)
 
         parent = request.args.get("parent")
         child = request.args.get("child")
-        actor = request.actor
-        actor_json = request.args.get("actor")
-        if actor_json is not None:
-            try:
-                actor = json.loads(actor_json)
-            except json.JSONDecodeError as ex:
-                return Response.error(f"Invalid actor JSON: {ex}", 400)
-            if actor is not None and not isinstance(actor, dict):
-                return Response.error("actor must be a JSON object or null", 400)
 
         response, status = await _check_permission_for_actor(
-            self.ds, action, parent, child, actor
+            self.ds, action, parent, child, request.actor
         )
         return Response.json(response, status=status)
 
@@ -797,8 +741,6 @@ class CreateTokenView(BaseView):
             raise Forbidden(
                 "Token authentication cannot be used to create additional tokens"
             )
-        if "_r" in request.actor:
-            raise Forbidden("Restricted actors cannot create API tokens")
 
     async def shared(self, request):
         self.check_permission(request)
@@ -876,11 +818,6 @@ class CreateTokenView(BaseView):
                 else:
                     errors.append("Invalid expire duration unit")
 
-        if errors:
-            context = await self.shared(request)
-            context["errors"] = errors
-            return await self.render(["create_token.html"], request, context)
-
         # Are there any restrictions?
         from datasette.tokens import TokenRestrictions
 
@@ -947,7 +884,7 @@ class ApiExplorerView(BaseView):
                 tables.append({"name": table, "links": table_links})
                 table_links.append(
                     {
-                        "label": f"Get rows for {table}",
+                        "label": "Get rows for {}".format(table),
                         "method": "GET",
                         "path": self.ds.urls.table(name, table, format="json"),
                     }
@@ -967,7 +904,7 @@ class ApiExplorerView(BaseView):
                             {
                                 "path": self.ds.urls.table(name, table) + "/-/insert",
                                 "method": "POST",
-                                "label": f"Insert rows into {table}",
+                                "label": "Insert rows into {}".format(table),
                                 "json": {
                                     "rows": [
                                         {
@@ -981,7 +918,7 @@ class ApiExplorerView(BaseView):
                             {
                                 "path": self.ds.urls.table(name, table) + "/-/upsert",
                                 "method": "POST",
-                                "label": f"Upsert rows into {table}",
+                                "label": "Upsert rows into {}".format(table),
                                 "json": {
                                     "rows": [
                                         {
@@ -1011,7 +948,7 @@ class ApiExplorerView(BaseView):
                     table_links.append(
                         {
                             "path": self.ds.urls.table(name, table) + "/-/drop",
-                            "label": f"Drop table {table}",
+                            "label": "Drop table {}".format(table),
                             "json": {"confirm": False},
                             "method": "POST",
                         }
@@ -1028,7 +965,7 @@ class ApiExplorerView(BaseView):
                 database_links.append(
                     {
                         "path": self.ds.urls.database(name) + "/-/create",
-                        "label": f"Create table in {name}",
+                        "label": "Create table in {}".format(name),
                         "json": {
                             "table": "new_table",
                             "columns": [
@@ -1261,7 +1198,7 @@ class JumpView(BaseView):
                 match["display_name"] = row["display_name"]
             matches.append(match)
 
-        return Response.json({"ok": True, "matches": matches, "truncated": truncated})
+        return Response.json({"matches": matches, "truncated": truncated})
 
 
 class SchemaBaseView(BaseView):
@@ -1269,28 +1206,21 @@ class SchemaBaseView(BaseView):
 
     has_json_alternate = False
 
-    async def get_database_schema(self, database_name, actor):
+    async def get_database_schema(self, database_name):
         """Get schema SQL for a database."""
         db = self.ds.databases[database_name]
-        allowed_tables_page = await self.ds.allowed_resources(
-            "view-table", actor, parent=database_name
-        )
-        allowed_table_names = {
-            resource.child async for resource in allowed_tables_page.all()
-        }
         result = await db.execute(
-            "select tbl_name, sql from sqlite_master where sql is not null"
-        )
-        return ";\n".join(
-            row["sql"] for row in result.rows if row["tbl_name"] in allowed_table_names
+            "select group_concat(sql, ';' || CHAR(10)) as schema from sqlite_master where sql is not null"
         )
+        row = result.first()
+        return row["schema"] if row and row["schema"] else ""
 
     def format_json_response(self, data):
         """Format data as JSON response with CORS headers if needed."""
         headers = {}
         if self.ds.cors:
             add_cors_headers(headers)
-        return Response.json({"ok": True, **data}, headers=headers)
+        return Response.json(data, headers=headers)
 
     def format_error_response(self, error_message, format_, status=404):
         """Format error response based on requested format."""
@@ -1299,7 +1229,7 @@ class SchemaBaseView(BaseView):
             if self.ds.cors:
                 add_cors_headers(headers)
             return Response.json(
-                error_body(error_message, status), status=status, headers=headers
+                {"ok": False, "error": error_message}, status=status, headers=headers
             )
         else:
             return Response.text(error_message, status=status)
@@ -1345,7 +1275,7 @@ class InstanceSchemaView(SchemaBaseView):
         # Get schema for each database
         schemas = []
         for database_name in allowed_databases:
-            schema = await self.get_database_schema(database_name, request.actor)
+            schema = await self.get_database_schema(database_name)
             schemas.append({"database": database_name, "schema": schema})
 
         if format_ == "json":
@@ -1375,18 +1305,18 @@ class DatabaseSchemaView(SchemaBaseView):
         database_name = request.url_vars["database"]
         format_ = request.url_vars.get("format") or "html"
 
-        # Permission check comes first, so actors without view-database
-        # cannot distinguish existing databases from missing ones
+        # Check if database exists
+        if database_name not in self.ds.databases:
+            return self.format_error_response("Database not found", format_)
+
+        # Check view-database permission
         await self.ds.ensure_permission(
             action="view-database",
             resource=DatabaseResource(database=database_name),
             actor=request.actor,
         )
 
-        if database_name not in self.ds.databases:
-            return self.format_error_response("Database not found", format_)
-
-        schema = await self.get_database_schema(database_name, request.actor)
+        schema = await self.get_database_schema(database_name)
 
         if format_ == "json":
             return self.format_json_response(
@@ -1419,14 +1349,10 @@ class TableSchemaView(SchemaBaseView):
             actor=request.actor,
         )
 
-        if database_name not in self.ds.databases:
-            return self.format_error_response("Database not found", format_)
-
         # Get schema for the table
         db = self.ds.databases[database_name]
         result = await db.execute(
-            "select sql from sqlite_master where name = ? "
-            "and type in ('table', 'view') and sql is not null",
+            "select sql from sqlite_master where name = ? and sql is not null",
             [table_name],
         )
         row = result.first()