* Issue 2429 indicates the possiblity of an open redirect
The 404 processing ends up redirecting a request with multiple path
slashes to that site, i.e.
https://my-site//shedcode.co.uk will redirect to https://shedcode.co.uk
This commit uses a regular expression to remove the multiple leading
slashes before redirecting.
Implement INTERSECT-based actor restrictions to prevent permission bypass
Actor restrictions are now implemented as SQL filters using INTERSECT rather
than as deny/allow permission rules. This ensures restrictions act as hard
limits that cannot be overridden by other permission plugins or config blocks.
Previously, actor restrictions (_r in actor dict) were implemented by
generating permission rules with deny/allow logic. This approach had a
critical flaw: database-level config allow blocks could bypass table-level
restrictions, granting access to tables not in the actor's allowlist.
The new approach separates concerns:
- Permission rules determine what's allowed based on config and plugins
- Restriction filters limit the result set to only allowlisted resources
- Restrictions use INTERSECT to ensure all restriction criteria are met
- Database-level restrictions (parent, NULL) properly match all child tables
Implementation details:
- Added restriction_sql field to PermissionSQL dataclass
- Made PermissionSQL.sql optional to support restriction-only plugins
- Updated actor_restrictions_sql() to return restriction filters instead of rules
- Modified SQL builders to apply restrictions via INTERSECT and EXISTS clauses
Closes#2572
Simplified Action by moving takes_child/takes_parent logic to Resource
- Removed InstanceResource - global actions are now simply those with resource_class=None
- Resource.parent_class - Replaced parent_name: str with parent_class: type[Resource] | None for direct class references
- Simplified Action dataclass - No more redundant fields, everything is derived from the Resource class structure
- Validation - The __init_subclass__ method now checks parent_class.parent_class to enforce the 2-level hierarchy
Closes#2563
* Add keyset pagination to allowed_resources()
This replaces the unbounded list return with PaginatedResources,
which supports efficient keyset pagination for handling thousands
of resources.
Closes#2560
Changes:
- allowed_resources() now returns PaginatedResources instead of list
- Added limit (1-1000, default 100) and next (keyset token) parameters
- Added include_reasons parameter (replaces allowed_resources_with_reasons)
- Removed allowed_resources_with_reasons() method entirely
- PaginatedResources.all() async generator for automatic pagination
- Uses tilde-encoding for tokens (matching table pagination)
- Updated all callers to use .resources accessor
- Updated documentation with new API and examples
The PaginatedResources object has:
- resources: List of Resource objects for current page
- next: Token for next page (None if no more results)
- all(): Async generator that yields all resources across pages
Example usage:
page = await ds.allowed_resources("view-table", actor, limit=100)
for table in page.resources:
print(table.child)
# Iterate all pages automatically
async for table in page.all():
print(table.child)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
* Neater design for PermissionSQL class, refs #2556
- source is now automatically set to the source plugin
- params is optional
* PermissionSQL.allow() and PermissionSQL.deny() shortcuts
Closes#2556
* Filter out temp database from attached_databases()
Refs https://github.com/simonw/datasette/issues/2557#issuecomment-3470510837
* Ported setup.py to pyproject.toml, refs #2553
* Make fixtures tests less flaky
The in-memory fixtures table was being shared between different
instances of the test client, leading to occasional errors when
running the full test suite.
This adds a new endpoint at /-/actions that lists all registered actions
in the permission system. The endpoint supports both JSON and HTML output.
Changes:
- Added _actions() method to Datasette class to return action list
- Added route for /-/actions with JsonDataView
- Created actions.html template for nice HTML display
- Added template parameter to JsonDataView for custom templates
- Moved respond_json_or_html from BaseView to JsonDataView
- Added test for the new endpoint
The endpoint requires view-instance permission and provides details about
each action including name, abbreviation, description, resource class,
and parent/child requirements.
Closes#2547
Co-Authored-By: Claude <noreply@anthropic.com>
This fixes issues introduced by the ruff commit e57f391a which converted
Optional[x] to x | None:
- Fixed datasette/app.py line 1024: Dict[id | str, Dict] -> Dict[int | str, Dict]
(was using id built-in function instead of int type)
- Fixed datasette/app.py line 1074: Optional["Resource"] -> "Resource" | None
- Added 'from __future__ import annotations' for Python 3.10 compatibility
- Added TYPE_CHECKING blocks to avoid circular imports
- Removed dead code (unused variable assignments) from cli.py and views
- Removed unused imports flagged by ruff across multiple files
- Fixed test fixtures: moved app_client fixture imports to conftest.py
(fixed 71 test errors caused by fixtures not being registered)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
The /-/check endpoint now requires the permissions-debug permission
to access. This prevents unauthorized users from probing the permission
system. Administrators can grant this permission to specific users or
anonymous users if they want to allow open access.
Added test to verify anonymous and regular users are denied access,
while root user (who has all permissions) can access the endpoint.
Closes#2546
Added test_rst_heading_underlines_match_title_length() to verify that RST
heading underlines match their title lengths. The test properly handles:
- Overline+underline style headings (skips validation for those)
- Empty lines before underlines (ignores them)
- Minimum 5-character underline length (avoids false positives)
Running this test identified 14 heading underline mismatches which have
been fixed across 5 documentation files:
- docs/authentication.rst (3 headings)
- docs/plugin_hooks.rst (4 headings)
- docs/internals.rst (5 headings)
- docs/deploying.rst (1 heading)
- docs/changelog.rst (1 heading)
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Co-Authored-By: Claude <noreply@anthropic.com>
Updated check_visibility() method signature to accept Resource objects
(DatabaseResource, TableResource, QueryResource) instead of plain strings
and tuples.
Changes:
- Updated check_visibility() signature to only accept Resource objects
- Added validation with helpful error message for incorrect types
- Updated all check_visibility() calls throughout the codebase:
- datasette/views/database.py: Use DatabaseResource and QueryResource
- datasette/views/special.py: Use DatabaseResource and TableResource
- datasette/views/row.py: Use TableResource
- datasette/views/table.py: Use TableResource
- datasette/app.py: Use TableResource in expand_foreign_keys
- Updated tests to use Resource objects
- Updated documentation in docs/internals.rst:
- Removed outdated permissions parameter
- Updated examples to use Resource objects
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
- Modified /-/allowed to show all reasons that grant access to a resource
- Changed from MAX(reason) to json_group_array() in SQL to collect all reasons
- Reasons now displayed as JSON arrays in both HTML and JSON responses
- Only show Reason column to users with permissions-debug permission
- Removed obsolete "Source Plugin" column from /-/rules interface
- Updated allowed_resources_with_reasons() to parse and return reason lists
- Fixed alert() on /-/allowed by replacing with disabled input state
- Renamed test_tables_endpoint.py to test_allowed_resources.py to better
reflect that it tests the allowed_resources() API, not the HTTP endpoint
- Removed three outdated tests from test_search_tables.py that expected
the old behavior where /-/tables.json with no query returned empty results
- The new behavior (from commit bda69ff1) returns all tables with pagination
when no query is provided
Fixes test failures in CI from PR #2539🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Actor restrictions (_r) now integrate with the SQL permission layer via
the permission_resources_sql() hook instead of acting as a post-filter.
This fixes the issue where allowed_resources() didn't respect restrictions,
causing incorrect database/table listings at /.json and /database.json
endpoints for restricted actors.
Key changes:
- Add _restriction_permission_rules() function to generate SQL rules from _r
- Restrictions create global DENY + specific ALLOW rules using allowlist
- Restrictions act as gating filter BEFORE config/root/default permissions
- Remove post-filter check from allowed() method (now redundant)
- Skip default allow rules when actor has restrictions
- Add comprehensive tests for restriction filtering behavior
The cascading permission logic (child → parent → global) ensures that
allowlisted resources override the global deny, while non-allowlisted
resources are blocked.
Closes#2534
The self.permissions dictionary was declared in __init__ but never
populated - only self.actions gets populated during startup.
The get_permission() method was unused legacy code that tried to look
up permissions from the empty self.permissions dictionary.
Changes:
- Removed self.permissions = {} from Datasette.__init__
- Removed get_permission() method (unused)
- Renamed test_get_permission → test_get_action to match actual method being tested
All tests pass, confirming these were unused artifacts.
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Co-Authored-By: Claude <noreply@anthropic.com>
Updated test expectations to match the actual /-/permissions POST endpoint:
1. **Resource format**: Changed from empty list `[]` to `None` when no resources,
and from tuple `(a, b)` to list `[a, b]` for two resources (JSON serialization)
2. **Result values**: Changed from sentinel "USE_DEFAULT" to actual boolean True/False
3. **also_requires dependencies**: Fixed tests for actions with dependencies:
- view-database-download now requires both "vdd" and "vd" in restrictions
- execute-sql now requires both "es" and "vd" in restrictions
4. **No upward cascading**: view-database does NOT grant view-instance
(changed expected result from True to False)
All 20 test_actor_restricted_permissions test cases now pass.
Refs #2534🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
These tests were expecting an old API behavior from the /-/permissions debug endpoint
that no longer exists. The tests expect:
- A "default" field in the response (removed when migrating to new permission system)
- "USE_DEFAULT" sentinel values instead of actual True/False results
- Empty list `[]` for no resource instead of `None`
The /-/permissions POST endpoint was updated (views/special.py:151-185) to return
simpler responses without the "default" field, but these tests weren't updated to match.
These tests need to be rewritten to test the new permission system correctly.
Refs #2534
Fixed two bugs preventing the create token UI and tests from working:
1. **Template variable mismatch**: create_token.html was using undefined variables
- Changed `all_permissions` → `all_actions`
- Changed `database_permissions` → `database_actions`
- Changed `resource_permissions` → `child_actions`
These match what CreateTokenView.shared() actually provides to the template.
2. **Action abbreviation bug**: app.py:685 was checking the wrong dictionary
- Changed `self.permissions.get(action)` → `self.actions.get(action)`
The abbreviate_action() function needs to look up Action objects (which have
the `abbr` attribute), not Permission objects. This bug prevented action names
like "view-instance" from being abbreviated to "vi" in token restrictions.
Refs #2534🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
The test was expecting upward permission cascading (e.g., view-table permission
granting view-database access), but the actual implementation in
restrictions_allow_action() uses exact-match, non-cascading checks.
Updated 5 test cases to expect 403 (Forbidden) instead of 200 when:
- Actor has view-database permission but accesses instance page
- Actor has database-level view-table permission but accesses instance/database pages
- Actor has table-level view-table permission but accesses instance/database pages
This matches the documented behavior: "Restrictions work on an exact-match basis:
if an actor has view-table permission, they can view tables, but NOT automatically
view-instance or view-database."
Refs #2534https://github.com/simonw/datasette/issues/2534#issuecomment-3447774464🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
