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Refs GHSA-2mvv-ffvc-q5p6 Co-authored-by: Alex Garcia <15178711+asg017@users.noreply.github.com>
107 lines
3.9 KiB
Python
107 lines
3.9 KiB
Python
from pathlib import Path
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from unittest import mock
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import pytest
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from datasette.app import Datasette
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# not necessarily a full path - the full compiled path looks like "ext.dylib"
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# or another suffix, but sqlite will, under the hood, decide which file
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# extension to use based on the operating system (apple=dylib, windows=dll etc)
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# this resolves to "./ext", which is enough for SQLite to calculate the rest
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COMPILED_EXTENSION_PATH = str(Path(__file__).parent / "ext")
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# See if ext.c has been compiled, based off the different possible suffixes.
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def has_compiled_ext():
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for ext in ["dylib", "so", "dll"]:
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path = Path(__file__).parent / f"ext.{ext}"
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if path.is_file():
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return True
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return False
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@pytest.mark.parametrize("load_fails", (False, True))
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def test_load_extension_is_disabled(load_fails):
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ds = Datasette(sqlite_extensions=[COMPILED_EXTENSION_PATH])
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connection = mock.Mock()
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if load_fails:
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connection.load_extension.side_effect = RuntimeError
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if load_fails:
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with pytest.raises(RuntimeError):
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ds._prepare_connection(connection, "data")
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else:
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ds._prepare_connection(connection, "data")
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# Extensions are loaded using the Python API, never via SQL
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assert connection.load_extension.mock_calls == [
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mock.call(COMPILED_EXTENSION_PATH),
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]
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assert connection.enable_load_extension.mock_calls == [
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mock.call(True),
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mock.call(False),
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]
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@pytest.mark.asyncio
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@pytest.mark.skipif(not has_compiled_ext(), reason="Requires compiled ext.c")
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async def test_load_extension_default_entrypoint():
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# The default entrypoint only loads a() and NOT b() or c(), so those
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# should fail.
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ds = Datasette(sqlite_extensions=[COMPILED_EXTENSION_PATH])
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+a()")
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assert response.status_code == 200
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assert response.json()["rows"][0][0] == "a"
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+b()")
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assert response.status_code == 400
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assert response.json()["error"] == "no such function: b"
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+c()")
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assert response.status_code == 400
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assert response.json()["error"] == "no such function: c"
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@pytest.mark.asyncio
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@pytest.mark.skipif(not has_compiled_ext(), reason="Requires compiled ext.c")
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async def test_load_extension_multiple_entrypoints():
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# Load in the default entrypoint and the other 2 custom entrypoints, now
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# all a(), b(), and c() should run successfully.
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ds = Datasette(
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sqlite_extensions=[
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COMPILED_EXTENSION_PATH,
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(COMPILED_EXTENSION_PATH, "sqlite3_ext_b_init"),
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(COMPILED_EXTENSION_PATH, "sqlite3_ext_c_init"),
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]
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)
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+a()")
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assert response.status_code == 200
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assert response.json()["rows"][0][0] == "a"
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+b()")
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assert response.status_code == 200
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assert response.json()["rows"][0][0] == "b"
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response = await ds.client.get("/_memory/-/query.json?_shape=arrays&sql=select+c()")
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assert response.status_code == 200
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assert response.json()["rows"][0][0] == "c"
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@pytest.mark.asyncio
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@pytest.mark.skipif(not has_compiled_ext(), reason="Requires compiled ext.c")
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async def test_sql_cannot_load_additional_extension():
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ds = Datasette(sqlite_extensions=[COMPILED_EXTENSION_PATH])
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response = await ds.client.get(
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"/_memory/-/query.json",
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params={
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"sql": "select load_extension(:path, :entrypoint)",
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"path": COMPILED_EXTENSION_PATH,
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"entrypoint": "sqlite3_ext_b_init",
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},
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)
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assert response.status_code == 400
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assert response.json()["error"] == "not authorized"
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