Two fixes surfaced while testing Login Flow v2 provisioning behind a split
internal/external host (Docker: server↔Nextcloud over http://app, browser
over http://localhost:8080):
1. login_url pointed at the internal host. Nextcloud builds the login URL
from the request host, so the browser-facing URL came back as
http://app/login/v2/flow/... — unreachable from the user's browser. The
poll endpoint was already rewritten to the internal host (correct, the
server polls it); now LoginFlowV2Client also rewrites the login_url origin
to settings.nextcloud_public_issuer_url when set (passed at all 5
construction sites). When unset, behaviour is unchanged.
2. The app-password format guard rejected raw session tokens. core/
getapppassword returns a long alphanumeric token, not the dashed 25-char
Security-settings format, so the dashed-only regex 400'd the one-click
opt-in handoff. Relax APP_PASSWORD_PATTERN to `^[a-zA-Z0-9-]{20,256}$`;
the authoritative validation is still the BasicAuth check against Nextcloud.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
- Escape HTML in _render_error to prevent XSS from exception messages
- Replace asyncio.create_task/sleep with anyio task group and sleep,
tying poll task lifetime to the app lifespan for proper cleanup
- Extract rewrite_url_origin() utility to fix duplicated URL rewriting
logic and replace urlparse._replace with stable urlunparse API
- Add warning log for insecure HTTP redirect URIs
- Add unit tests for validation, XSS escaping, route handlers, and
URL rewriting (16 new tests in test_provision_routes.py)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Nextcloud returns poll/login URLs using its internal hostname (e.g.
http://localhost/login/v2/poll) which is unreachable from the MCP
server container in Docker networks. Rewrite the poll endpoint's
origin to use the configured NEXTCLOUD_HOST so server-side polling
works correctly.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Fix anyio.Lock() created at module import time; use lazy init in
get_shared_storage() to avoid instantiation before event loop exists
- Stop get_login_flow_session from silently swallowing DB exceptions;
re-raise and handle in caller with proper error response
- Update ProvisionAccessResponse and UpdateScopesResponse status field
docs to include all actual values (declined, cancelled, unchanged)
- Narrow except clause in present_login_url to (AttributeError,
NotImplementedError) instead of bare Exception
- Add KeyError handling in LoginFlowV2Client.initiate() and poll() for
clear errors on malformed Nextcloud responses
- Simplify redundant env-var bypass branches in scope_authorization.py
- Extract _maybe_login_flow_cleanup() context manager to replace 4
inline cleanup loop registrations in app.py; move sleep to end of
loop body so cleanup runs once at startup
- Replace fragile string replacement in _rewrite_login_flow_url with
proper urllib.parse URL handling
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Consolidate three independent RefreshTokenStorage lazy singletons into a
single lock-protected get_shared_storage() function, eliminating race
conditions on concurrent first-access. Remove blanket try/except in
_get_stored_scopes so storage errors propagate as proper MCP errors
instead of silently triggering "please provision" messages. Handle
declined/cancelled elicitation results in Login Flow tools by cleaning up
sessions and returning clear status. Add update_app_password_scopes() to
avoid unnecessary decrypt/re-encrypt when only scopes change. Add
unprovisioned-user early exit and no-op detection to nc_auth_update_scopes.
Remove four dead config fields and misleading NEXTCLOUD_PASSWORD deprecation
warning. Add periodic login flow session cleanup task. Generate separate
Fernet keys per service. Add board cleanup in deck integration test. Gate
CI unit tests on linting and skip Astrolabe build for single-user profile.
Fix test markers from oauth to multi_user_basic for astrolabe integration
tests. Update login_flow.py docstrings to document outbound HTTP calls.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
