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inkwell/tests/test_security_headers.py
T
bvandeusenandClaude Opus 5.5 b74dc7c1fe
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One app fixture for the tests, and ViewModels built where they are used
The tests' `app` fixture, the same two lines in eleven files, now lives once in
tests/conftest.py.

On Android each ViewModel carried a companion `factory` that only wrapped its
constructor in viewModelFactory { initializer { … } }. MainActivity now builds
each one with Compose's viewModel { … } builder, so the five factories and their
imports are gone.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-23 21:25:05 -04:00

50 lines
2.1 KiB
Python

"""Headers every response carries once this is reachable from the internet.
Asserted on /api/health because it is the one route that needs no database and no
session — the headers are set in an after_request hook, so any response proves the
hook, and this suite has no Postgres.
"""
async def test_content_security_policy_locks_scripts_to_self(app):
resp = await app.test_client().get("/api/health")
csp = resp.headers["Content-Security-Policy"]
assert "script-src 'self'" in csp
# The two that matter most if anything ever reflects user text into the page.
assert "object-src 'none'" in csp
assert "frame-ancestors 'none'" in csp
# No blanket unsafe-inline for SCRIPT — style is the only place it's conceded.
assert "script-src 'self' 'unsafe-inline'" not in csp
async def test_link_preview_images_are_still_allowed(app):
resp = await app.test_client().get("/api/health")
csp = resp.headers["Content-Security-Policy"]
# A preview renders the og:image of an arbitrary host; both schemes, because a
# LAN install is served over http.
assert "img-src" in csp
assert "https:" in csp
assert "http:" in csp
async def test_sniffing_and_referrer_are_pinned(app):
resp = await app.test_client().get("/api/health")
assert resp.headers["X-Content-Type-Options"] == "nosniff"
assert resp.headers["Referrer-Policy"] == "strict-origin-when-cross-origin"
assert "camera=()" in resp.headers["Permissions-Policy"]
async def test_no_hsts_on_plain_http(app):
# A plain-HTTP LAN install must not be told to refuse the only scheme it serves.
resp = await app.test_client().get("/api/health")
assert "Strict-Transport-Security" not in resp.headers
async def test_hsts_when_a_proxy_terminated_tls(app):
resp = await app.test_client().get("/api/health", headers={"X-Forwarded-Proto": "https"})
hsts = resp.headers["Strict-Transport-Security"]
assert "max-age=" in hsts
# Scoped to this host: neither of these commits domains the app doesn't own.
assert "includeSubDomains" not in hsts
assert "preload" not in hsts