Commit Graph
160 Commits
Author SHA1 Message Date
Chris CoutinhoandClaude Opus 4.7 822a8fe2ed fix(auth): address PR #757 review feedback
- Branch the ProvisioningRequiredError message on the elicit result so a
  user who acknowledged the prompt isn't told to call
  nc_auth_provision_access (which would loop an LLM that just confirmed
  via elicitation). Other paths keep the existing instruction.
- Convert present_login_url's f-string logger.warning to lazy %s, matching
  present_provisioning_required and the repo's lazy-logging preference.
- Add a test for NEXTCLOUD_PUBLIC_ISSUER_URL trailing-slash normalization.
- Strengthen the decorator-elicits test: split into the "accepted" and
  "message_only" branches so the error-message change is regression-tested.

Refs: cbcoutinho/nextcloud-mcp-server#757#issuecomment-4363552487

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 15:34:56 +02:00
Chris CoutinhoandClaude Opus 4.7 2da8b38aeb feat(auth): elicit Astrolabe URL on missing app password
When a tool requiring Nextcloud access is called without a stored app
password (Login Flow v2 mode), the @require_scopes decorator now invokes
MCP elicitation with a clickable Astrolabe settings URL — reconstructed
from NEXTCLOUD_PUBLIC_ISSUER_URL / NEXTCLOUD_HOST — before raising
ProvisioningRequiredError. Clients without elicitation support fall back
to the existing text error.

Surfaced by cbcoutinho/nextcloud-mcp-server#752, where users hit a 401
after OAuth and had no clickable URL to start Login Flow v2 from.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-02 12:02:18 +02:00
Chris CoutinhoandClaude Opus 4.7 affe29f72e fix(webhooks): escape webhook_uri, lazy logging, document 401 header omission
Address round-5 reviewer feedback on PR #747:

- Escape `webhook_uri` in the admin pane HTML template so an operator-
  controlled env value (`WEBHOOK_INTERNAL_URL`, `NEXTCLOUD_MCP_SERVER_URL`)
  can't inject markup. The sibling `preset_id` and exception messages were
  already escaped — this one was the odd one out.
- Convert the eight remaining f-string `logger.warning`/`logger.error`
  calls in `api/webhooks.py` to lazy `%s` formatting, matching the style
  already adopted by `webhook_receiver.py` and `webhook_routes.py`.
- Document why the 401 from `handle_nextcloud_webhook` deliberately omits
  `WWW-Authenticate`: NC's webhook delivery worker has no auth-flow state
  machine to negotiate against, the bearer is a static shared secret
  configured out-of-band via `WEBHOOK_SECRET`, and a challenge response
  wouldn't change client behaviour. The existing warning log already
  records the rejection.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 14:37:34 +02:00
Chris CoutinhoandClaude Opus 4.7 4a3857aabb fix(webhooks): escape HTML in error responses, compare bearer as bytes
Address the two Security findings from PR review:

- webhook_receiver: encode Authorization header and expected bearer to
  utf-8 bytes before hmac.compare_digest. Conventional form; doesn't
  rely on Python's implicit ASCII encoding.
- webhook_routes: html.escape user-influenced and exception-derived
  strings before interpolating into HTMLResponse content. Covers the
  preset_id path param echoed in the "Unknown preset" branch and the
  str(e) text rendered on handler exceptions.

Adds regression tests verifying compare_digest is invoked on bytes and
that <script> payloads (in preset_id and exception messages) are
emitted as escaped entities, not active markup.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 14:17:45 +02:00
Chris CoutinhoandClaude Opus 4.7 c1368b9a7f refactor(webhooks): bound queue waits, route URLs through dynaconf
Addresses round-3 review feedback on PR #747:

- webhook_receiver: wrap send_stream.send() in anyio.fail_after(1.0)
  and return 503 with reason="queue full" if the queue is saturated.
  Avoids pinning the handler until NC's outbound timeout fires; the
  503 retry contract is the same as the existing "sync not running"
  branch.
- webhook_receiver: revise the compare_digest comment to match what
  the function actually guarantees — it avoids the per-character
  short-circuit of `==` but is not fully constant-time across length
  differences.
- _get_webhook_uri: read WEBHOOK_INTERNAL_URL and
  NEXTCLOUD_MCP_SERVER_URL via dynaconf so operators using
  settings.toml (rather than env vars) aren't silently routed into
  the docker/localhost fallback. Adds webhook_internal_url to
  Settings/_DEFAULTS/_field_map; nextcloud_mcp_server_url already
  existed. Docker-detection markers stay on os.getenv since they're
  container-runtime signals, not user-facing config.
- webhook_routes: sweep remaining f-string logger calls to lazy %s
  formatting per CLAUDE.md.
- client/webhooks: modernise full file's type hints to
  dict / list / | None per CLAUDE.md.

Tests:
- New test_returns_503_when_queue_is_full exercises the timeout
  branch with a saturated buffer and a shortened deadline.
- test_webhook_uri tests now patch get_settings (matching the
  auth-pair tests in the same file) instead of monkeypatching env
  vars directly.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 04:17:00 +02:00
Chris CoutinhoandClaude Opus 4.7 f5f05b7c84 refactor(webhooks): address PR review on auth-pass
- webhook_receiver: always run hmac.compare_digest (drop the
  `not provided or` short-circuit) so the constant-time path is
  taken regardless of whether the Authorization header is present.
- client/webhooks: modernise the new `auth_data` type hint to
  `dict[str, str] | None` per CLAUDE.md.
- tests/client: rename `test_create_webhook_with_auth_headers` →
  `test_create_webhook_with_static_headers` and use
  `auth_method="header"` (NC's webhook_listeners only supports
  "none" and "header"; the previous "bearer" value was invalid).
- auth/webhook_routes: extract `_register_preset_webhooks` from
  `enable_webhook_preset` so the auth-threading behaviour is
  testable without standing up a Starlette app + auth middleware.
- tests/unit: new test_webhook_routes_register covering the helper
  with secret set / unset, and verifying ids round-trip in order.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 04:02:26 +02:00
Chris CoutinhoandClaude Opus 4.7 224428fca5 fix(webhooks): authenticate deliveries via WEBHOOK_SECRET; review nits
Adds optional shared-secret authentication for /webhooks/nextcloud,
addressing the security follow-up flagged in #747.

Behavior:
- WEBHOOK_SECRET set: registrations pass authMethod="header" with
  authData={"Authorization": "Bearer <secret>"} (encrypted at-rest in
  Nextcloud's DB and forwarded on every delivery). The receiver
  validates the same header with hmac.compare_digest before parsing
  any payload; missing/invalid → 401.
- WEBHOOK_SECRET unset: registrations stay on authMethod="none" and
  the receiver accepts unauthenticated POSTs (logging a one-time
  startup warning). Backward compatible — operators can roll out at
  their own pace.

Implementation notes:
- WebhooksClient.create_webhook gains an `auth_data` parameter mapped
  to NC's `authData` body field; this is distinct from the existing
  `headers` parameter (`headers` is plaintext static request headers,
  `authData` is encrypted at-rest in NC and only emitted when
  authMethod="header"). The previous `auth_method="bearer"` mention in
  the docstring was incorrect — NC supports only "none" and "header".
- A small `webhook_auth_pair()` helper in auth/webhook_routes.py
  centralises the secret→(auth_method, auth_data) resolution so the
  preset flow and the Astrolabe-facing /api/v1/webhooks endpoint stay
  in sync.

Also addresses the smaller review points from #747:
- f-string → lazy %s formatting in webhook_receiver.py and
  webhook_routes.py.
- Move `int(time)` inside webhook_parser's try/except so a malformed
  `time` field returns None instead of raising ValueError.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 03:50:28 +02:00
Chris CoutinhoandClaude Opus 4.7 2e2a098bee fix(webhooks): wire receiver to vector sync queue and fix registered URI
The /webhooks/nextcloud endpoint was a no-op stub that logged the
payload and returned 200 OK; webhook deletions never reached Qdrant.
Compounding that, _get_webhook_uri() registered the docker-compose
internal hostname (http://mcp:8000) with Nextcloud whenever
/.dockerenv existed — including ECS Fargate — so cloud deployments
were registering a URL NC could not resolve.

- New vector/webhook_parser.py extracts a DocumentTask from
  NodeCreatedEvent / NodeWrittenEvent / BeforeNodeDeletedEvent
  payloads scoped to */files/Notes/*.md (matching the registered
  preset filters).
- New vector/webhook_receiver.py pushes that task onto the same
  send-stream the scanner uses (app.state.document_send_stream),
  with 503 when sync is not running so NC retries delivery.
- _get_webhook_uri() now prefers NEXTCLOUD_MCP_SERVER_URL over the
  /.dockerenv branch, so the explicit public URL set on cloud tasks
  wins; docker-compose dev still falls back to the internal name when
  no public URL is configured.

Calendar / Tables event parsing is intentionally out of scope here.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 03:13:50 +02:00
Chris CoutinhoandGitHub a2711b4bda Merge pull request #741 from cbcoutinho/feat/talk-spreed-integration
feat(talk): add MCP integration for Nextcloud Talk (spreed)
2026-04-30 01:26:47 +02:00
Chris CoutinhoandGitHub 4bf6937827 Merge pull request #745 from cbcoutinho/feat/strict-auth-allowlists
feat(auth): drop test-client defaults, add ALLOWED_MGMT_CLIENT allowlist
2026-04-30 01:23:07 +02:00
Chris CoutinhoandClaude Opus 4.7 bd7702ad12 feat(auth): drop test-client defaults, add ALLOWED_MGMT_CLIENT allowlist
Both auth surfaces now fail-closed by default:

- ALLOWED_MCP_CLIENTS: removed the silent `claude-desktop` and
  `test-mcp-client` fallbacks. Empty/unset env var leaves the registry
  empty so /oauth/authorize rejects every client_id.
- ALLOWED_MGMT_CLIENT (new): comma-separated list of OIDC client_ids
  whose tokens are accepted by /api/management/*. Enforced in
  verify_token_for_management_api on both the cache-hit and cache-miss
  paths against the token's client_id claim. Unset/empty rejects all.

Compose: set ALLOWED_MGMT_CLIENT=nextcloudMcpServerUIPublicClient on
mcp-multi-user-basic so the existing Astrolabe integration test
(test_astrolabe_chunk_context.py) still passes.

env.sample documents both vars and notes they may be consolidated later.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 01:20:21 +02:00
Chris CoutinhoandClaude Opus 4.7 d4760f64dc fix(oauth): follow redirects when fetching OIDC discovery
Nextcloud installs without pretty URLs return a 301 from
`/.well-known/openid-configuration` to
`/index.php/.well-known/openid-configuration` (e.g. Hetzner StorageShare).
`_get_cached_discovery` did not enable follow_redirects, so httpx raised
HTTPStatusError on the 301 and the AS-proxy authorize handler returned
500, breaking client connections (e.g. claude.ai).

Pass `follow_redirects=True` to the httpx client used for the discovery
fetch only — downstream OIDC endpoints (token, userinfo, etc.) are
absolute URLs read from the discovery doc and are unaffected.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-30 01:18:46 +02:00
Chris CoutinhoandClaude Opus 4.7 69814f30e3 feat(talk): add MCP integration for Nextcloud Talk (spreed)
Adds 6 MCP tools so an LLM can read a user's Talk conversations and
post messages on their behalf, addressing the "read my chats and reply"
use case from issue #720:

  - talk_list_conversations
  - talk_get_conversation
  - talk_get_messages
  - talk_list_participants
  - talk_send_message    (auto-attaches a referenceId for retry dedup)
  - talk_mark_as_read

Edit/delete messages, reactions, threads, and call/session ops are
intentionally out of scope for this first PR.

The TalkClient also exposes create_conversation/delete_conversation
for the integration test fixture; these are not registered as MCP
tools. A post-installation hook enables spreed in the docker dev env
so the integration suite has a real Talk backend to talk to.

Closes #720

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-29 23:19:57 +02:00
Chris CoutinhoandClaude Opus 4.7 2f1b0d2500 fix(calendar): thread raw credentials to caldav AsyncDAVClient
caldav 3.x lists niquests as a mandatory dependency and prefers it over
httpx. Passing httpx.BasicAuth via the auth= argument breaks under the
niquests backend with "Unexpected non-callable authentication" — see #731.

Switch CalendarClient.__init__ from auth=Auth|None to keyword-only
password/token, and forward them to AsyncDAVClient as password= plus an
explicit auth_type ("basic" or "bearer"). caldav then builds whichever
auth object its active backend needs (niquests.auth.HTTPBasicAuth or
httpx.BasicAuth), so we stay backend-agnostic.

Threaded raw credentials through NextcloudClient — added keyword-only
password/token to its __init__, and updated from_env, from_token, and
the four call sites that build NextcloudClient (context.py basic-auth
and Login Flow paths, auth/userinfo_routes.py, vector/oauth_sync.py).

Four new unit tests pin the construction wiring so the niquests
regression can't recur silently — basic, bearer, no-creds, and
password-precedence cases.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-26 16:52:58 +02:00
Chris CoutinhoandClaude Opus 4.7 8a0d06107e fix(api): use stored app password for chunk-context and pdf-preview
The /api/v1/chunk-context and /api/v1/pdf-preview handlers in
api/visualization.py forwarded the incoming OAuth bearer directly to
Nextcloud via NextcloudClient.from_token. In multi-user BasicAuth mode
Nextcloud has no validator for those bearers on Notes/WebDAV, so it
treats the request as anonymous and returns 401 — surfaced to the user
as a 500 from /apps/astrolabe/api/chunk-context. Search worked because
it only hits Qdrant.

Architecturally, OAuth is only for Astrolabe→MCP server; MCP server→
Nextcloud always uses the per-user app password stored during provision
(background sync already does this via vector.oauth_sync).

- Resolve the Nextcloud client through get_user_client_basic_auth in
  both get_chunk_context and get_pdf_preview, surfacing
  NotProvisionedError as a clean 401 instead of opaque 500.
- Apply the same fix to the session-cookie variant in
  auth/viz_routes.chunk_context_endpoint for the internal viz UI.

Tests:
- New unit file test_management_chunk_context_endpoint.py, including a
  regression guard that asserts get_user_client_basic_auth is awaited
  (so reverting to from_token fails without needing a live Nextcloud).
- Updated test_management_pdf_preview_endpoint.py to mock the new auth
  path (drops extract_bearer_token / NextcloudClient.from_token patches).
- New integration test test_astrolabe_chunk_context.py drives the full
  chain (browser → Astrolabe → MCP → Nextcloud) in multi-user BasicAuth
  mode, plus bare-bones 401 checks on the MCP endpoint.

Full unit suite: 546 passed.

Companion PR on astrolabe (cbcoutinho/astrolabe#66) sends the Nextcloud
UID as loginName in the app-password POST body so the stored record is
complete. Submodule bump to that branch will follow once CI reproduces
the failure on the old submodule.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-22 19:50:13 +02:00
Chris CoutinhoandClaude Opus 4.6 146b622ebf fix: enable uvx/PyPI deployments without Docker assumptions
Two bugs made `uvx --from . nextcloud-mcp-server run` (and any pip install)
unusable outside Docker:

1. Dynaconf was configured with ignore_unknown_envvars=True and relied on
   settings.toml to declare the key schema. With no settings.toml in a wheel
   install, every env var (NEXTCLOUD_HOST, MCP_DEPLOYMENT_MODE, ...) was
   silently dropped. Moved the schema into a Python _DEFAULTS dict passed
   directly to Dynaconf, kept settings.toml as an optional external override
   (renamed to settings.toml.example, gitignored), and pointed docker-compose
   at the example file.

2. Token SQLite DB defaulted to /app/data/tokens.db in multiple places
   (auth/storage.py, migrations.py, alembic/env.py, cli.py db subcommands),
   which blew up at uvicorn startup with FileNotFoundError on non-Docker
   hosts. Replaced with a new config.get_token_db_path() helper that
   resolves TOKEN_STORAGE_DB if explicitly set, otherwise allocates a
   per-process tempfile cleaned up at interpreter exit via atexit — mirroring
   the "ephemeral by default" pattern used for QDRANT_LOCATION=:memory:.

Containers are unaffected: docker-compose services now explicitly set
TOKEN_STORAGE_DB=/app/data/tokens.db (the fourth service that was missing
this pin has been brought in line with the other three).

Verified end-to-end in an isolated /tmp venv: env-var-only startup, Alembic
migrations run against the tempfile, Application startup complete, /health/live
returns 200, tempfile deleted on SIGTERM. Unit tests (464) + ruff + ty pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-14 20:11:23 +02:00
Chris CoutinhoandClaude Opus 4.6 2c0b764aae fix: strip resource server prefix from JWT scopes for tool filtering
External IdPs like AWS Cognito return scopes prefixed with the resource
server identifier (e.g. https://mcp.example.com/notes.read). MCP tools
use bare scope names (notes.read) in @require_scopes decorators. Without
stripping the prefix, scope matching fails and only identity-only tools
(openid/profile/email) are visible — resulting in 4/125 tools shown.

Strip the OIDC_RESOURCE_SERVER_ID prefix in both get_access_token_scopes()
(used by list_tools filtering) and the require_scopes decorator (used at
tool execution time).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-08 01:27:06 +02:00
Chris CoutinhoandClaude Opus 4.6 7730f926cb fix: conditionally include offline_access based on IdP discovery
AWS Cognito provides refresh tokens automatically with the authorization
code flow but does not list offline_access as a supported scope. Check
the IdP's scopes_supported discovery field before including it in
requests, and always accept refresh tokens from responses regardless.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 23:48:49 +02:00
Chris CoutinhoandClaude Opus 4.6 f8fb34d113 fix: conditionally include offline_access in Flow 2 scope request
Flow 2 hardcoded offline_access in the scope string, but providers
like AWS Cognito don't support this scope (they handle refresh tokens
via client config). This caused invalid_scope errors on the Astrolabe
semantic search enablement flow.

Only include offline_access when enable_offline_access is explicitly
set, matching the behavior of DCR scope registration.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 20:31:55 +02:00
Chris CoutinhoandClaude Opus 4.6 c3da7acc87 fix: fall back to client_id when aud claim is absent (Cognito compat)
AWS Cognito access tokens do not include an `aud` claim per RFC 7519 —
they use `client_id` instead. This causes `_has_mcp_audience` to reject
all Cognito-issued tokens with "Missing MCP audience. Got []".

When `aud` is empty, fall back to the `client_id` JWT claim for audience
validation. The MCP server's own client_id will be present there since
the AS proxy exchanges the authorization code using its credentials.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 18:06:15 +02:00
Chris CoutinhoandClaude Opus 4.6 cc6ba65993 fix: address second round of PR review for scope prefix
- Use dynaconf (get_settings()) instead of os.getenv for OIDC_RESOURCE_SERVER_ID
- Re-add Settings field, _field_map entry, and settings.toml default
- Add trailing-slash guard (.rstrip("/")) to prevent double-slash in scopes
- Add double-prefixing guard: skip scopes already carrying the prefix
- Add @pytest.mark.unit to test module
- Add test for already-prefixed scopes
- Document OIDC_RESOURCE_SERVER_ID in docs/configuration.md

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 16:58:29 +02:00
Chris CoutinhoandClaude Opus 4.6 f67d4d1116 fix: address PR review for OIDC scope prefix feature
Add offline_access to OIDC standard scopes exclusion list to prevent it
from being incorrectly prefixed, which would break Cognito refresh token
flows. Extract scope transformation into testable _transform_scopes_for_idp()
helper, add debug logging for prefixed scopes, remove unused Settings field
(oauth_routes.py consistently uses os.getenv), and add unit tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 16:44:08 +02:00
Chris CoutinhoandClaude Opus 4.6 e21ddd91b9 feat: add OIDC resource server scope prefix for Cognito compatibility
When OIDC_RESOURCE_SERVER_ID is set, prefix resource scopes with the
identifier when forwarding to the IdP (e.g., calendar.read becomes
https://example.com/calendar.read). Required for IdPs like AWS Cognito
that mandate {resource_server_id}/{scope} format for custom scopes.
OIDC standard scopes (openid, profile, email) are forwarded as-is.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 16:33:47 +02:00
Chris CoutinhoandClaude Opus 4.6 29fd0486c9 refactor: change OAuth scope separator from colon to dot for IDP compatibility
Many identity providers (AWS Cognito, Okta, Azure AD) reject or mishandle
colons in OAuth scope names. This migrates all custom scopes from
`resource:action` to `resource.action` format (e.g., `notes:read` →
`notes.read`), which is universally accepted and aligns with industry
conventions (Microsoft, Google).

Includes Alembic migration 004 for stored scope strings and ADR-024
documenting the rationale and RFC references.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-07 10:07:02 +02:00
Chris CoutinhoandClaude Opus 4.6 b07b713146 fix: address PR review feedback for client registry and DCR proxy
- Document wildcard scope policy in ClientRegistry class docstring
- Add hostname None guard and IPv6 loopback (::1) to redirect URI validation
- Simplify redirect URI scheme validation into single guard clause
- Add try/finally cleanup to DCR client deletion test
- Validate 302 Location header in unknown client rejection test
- Add unit tests for IPv6 loopback, malformed URIs, and DCR proxy paths

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 19:29:23 +02:00
Chris CoutinhoandClaude Opus 4.6 7d775d2a52 refactor: remove ALLOWED_MCP_CLOUD_CLIENTS and add keycloak CI profile
Remove the unused ALLOWED_MCP_CLOUD_CLIENTS env var — all clients are
defined via ALLOWED_MCP_CLIENTS or the static well-known defaults.
Add keycloak as an integration test profile in CI now that login-flow
replaces the old bearer token approach for external IdPs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 15:06:56 +02:00
Chris CoutinhoandClaude Opus 4.6 91e7665f41 refactor: consolidate ALLOWED_MCP_CLIENTS and add redirect URI validation
Merge ALLOWED_MCP_CLOUD_CLIENTS into a single ALLOWED_MCP_CLIENTS env var
that supports both simple client IDs and pipe-separated client_id|redirect_uri
entries. Enforce HTTPS for non-localhost redirect URIs, warn on malformed
entries, and use wildcard scopes for all static clients (upstream IdP enforces
actual scopes). Add deprecation warning for the old env var.

Also fixes DCR proxy error messages to reference only ALLOWED_MCP_CLIENTS and
use "Upstream" instead of "Nextcloud" for IdP-agnostic language. Enables
Login Flow v2 + DCR on the mcp-keycloak docker-compose service.

Adds 17 unit tests for ClientRegistry parsing/validation and 7 keycloak
integration tests for DCR lifecycle, AS metadata, and client authorization.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 14:33:29 +02:00
Chris CoutinhoandClaude Opus 4.6 2a34015443 fix: support cloud OAuth clients and graceful DCR fallback
Claude AI (web) sends a Cognito-issued client_id with an HTTPS redirect
URI, but the client registry only supported localhost redirect URIs via
ALLOWED_MCP_CLIENTS. Add ALLOWED_MCP_CLOUD_CLIENTS env var for web-based
clients with format "client_id|redirect_uri".

Also fix the DCR proxy to return a clear error when the upstream IdP
(e.g. Cognito) doesn't support dynamic client registration, instead of
silently falling back to a Nextcloud-specific endpoint that fails.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 22:17:01 +02:00
Chris CoutinhoandClaude Opus 4.6 5730313574 refactor: remove RFC 8693 token exchange and Keycloak OAuth implementation
Nextcloud doesn't support OAuth bearer tokens without upstream patches,
making the RFC 8693 token exchange path untestable and dead code.

Removed:
- nextcloud_mcp_server/auth/token_exchange.py (597 lines)
- nextcloud_mcp_server/auth/keycloak_oauth.py (586 lines)
- OAUTH_TOKEN_EXCHANGE deployment mode from AuthMode enum
- get_session_client_from_context() from context_helper.py
- get_session_token() from token_broker.py
- enable_token_exchange / token_exchange_cache_ttl config fields
- oauth_token_exchange_total Prometheus metric
- Keycloak fixture block from tests/conftest.py (~408 lines)
- Token exchange unit tests from test_config_validators.py,
  test_unified_verifier.py, test_management_status_endpoint.py

Preserved:
- Multi-audience OAuth mode (OAUTH_SINGLE_AUDIENCE)
- Login Flow v2 provisioning with elicitation support
- Token broker background token management
- All existing test coverage for non-exchange paths

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-03 00:22:20 +02:00
Chris CoutinhoandClaude Opus 4.6 d06b862d24 fix: require bearer token on provision endpoints (open redirect mitigation)
Both /app/provision and /app/provision/status now require a valid
Nextcloud OIDC bearer token via the Authorization header, reusing the
existing validate_token_and_get_user pattern from the management API.

This eliminates the open redirect vulnerability (only authenticated
Astrolabe users can trigger the flow) and prevents unauthenticated
resource exhaustion via Login Flow v2 session creation.

The authenticated user_id from the token replaces the untrusted
user_id query parameter.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 17:09:37 +02:00
Chris CoutinhoandClaude Opus 4.6 775bee83e3 fix: address PR review round 3 — info disclosure, conditional routes, cleanup
- Replace exception details in user-facing error page with generic message
- Only register /app/provision routes when enable_login_flow is true
- Piggyback expired provision session cleanup on hourly cleanup loop
- Add multi-process limitation comment on in-memory session store
- Add comment explaining login_url vs poll_endpoint rewrite asymmetry
- Document curl dependency in Dockerfile (healthcheck probes)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 11:37:42 +02:00
Chris CoutinhoandClaude Opus 4.6 2508f36ebf fix: address PR review round 2 — expiry checks, race guards, poll tests
- Log warning if /app mount not found when sharing poll task group
- Add docstring explaining unconditional task group creation
- Check session expires_at in provision_status to catch stale sessions
- Guard _poll_and_store status writes against cleanup-while-polling race
- Use "error" status (not "expired") when app_password is missing
- Remove hardcoded "Astrolabe Background Sync" user_agent string
- Fix async mock pattern (new_callable=AsyncMock) in test
- Add autouse fixture to clear _provision_sessions between tests
- Add _poll_and_store unit tests: completed, expired, error, cleanup
- Document all status values in provision_status docstring

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 09:29:14 +02:00
Chris CoutinhoandClaude Opus 4.6 777a09c806 fix: address PR review — XSS escape, asyncio→anyio, URL rewrite dedup
- 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>
2026-03-30 08:51:41 +02:00
Chris CoutinhoandClaude Opus 4.6 eefede8c47 fix: rewrite Login Flow v2 poll endpoint URL to use configured host
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>
2026-03-29 23:21:41 +02:00
Chris CoutinhoandClaude Opus 4.6 c2f23a566c fix: handle internal hostname without port in Login Flow v2 URL rewriting
Nextcloud may omit default ports in the login_url (e.g. http://app
instead of http://app:80). Extract just scheme+hostname from
NEXTCLOUD_HOST for the URL replacement check.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 23:11:42 +02:00
Chris CoutinhoandClaude Opus 4.6 1a51f5bbf5 refactor: use redirect-based Login Flow v2 provision instead of popup
Replace the popup-based approach with a direct redirect to Nextcloud's
login page. This is more compatible with Playwright E2E tests and
simpler for users. The background polling task still runs server-side
to store the app password when the user grants access.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 22:17:54 +02:00
Chris CoutinhoandClaude Opus 4.6 081ecbe401 feat: add web-based Login Flow v2 provisioning endpoint
Add /app/provision and /app/provision/status endpoints for browser-based
Login Flow v2 app password provisioning. Used by Astrolabe's "Enable
Semantic Search" to chain OAuth (bearer token) + Login Flow v2 (app
password) in a single user interaction.

The provision page initiates Login Flow v2, opens Nextcloud's login URL
in a popup, polls for completion via background task, and redirects back
to the caller's redirect_uri on success.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 21:56:16 +02:00
Chris CoutinhoandGitHub d29408bacc Merge pull request #665 from cbcoutinho/feat/claude-funnel-config
feat: add Tailscale Funnel config for Claude AI connector testing
2026-03-29 21:00:16 +02:00
Chris CoutinhoandClaude Opus 4.6 b8dc1d7f52 feat: add Tailscale Funnel config for Claude AI connector testing
Add docker compose services (tailscale-mcp + nginx-claude-filter) behind
a claude-funnel profile that expose the login-flow MCP server via
Tailscale Funnel with IP-based access control:

- /mcp endpoint restricted to Claude AI outbound IPs (160.79.104.0/21)
- /oauth/*, /.well-known/*, /app paths open to all IPs (user login flow)
- All other paths return 404

Also add favicon.png served at /favicon.ico for connector directory
discovery (Google favicon service).

Usage:
  docker compose --profile login-flow --profile claude-funnel up -d

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 21:00:00 +02:00
Chris CoutinhoandClaude Opus 4.6 25788eecc7 fix: allow HTTPS redirect URIs for non-localhost OAuth clients
Relax redirect_uri validation to accept HTTPS for remote hosts (e.g.,
cloud-hosted MCP clients like Claude AI) while keeping HTTP allowed
for localhost per RFC 8252 loopback exception.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 19:03:25 +02:00
Chris CoutinhoandClaude Opus 4.6 fe8799a133 fix: resolve OAuth compatibility issues for login-flow deployment
- Drop OIDC fork: comment out third_party/oidc mount, use upstream
  v1.16.3 from app store (fixes consent redirect race, PR #631)
- Support client_secret_basic auth: add _extract_basic_auth() helper
  so TS MCP SDK can authenticate at token endpoint (RFC 6749 §2.3.1)
- Multi-issuer JWT validation: accept tokens with internal Docker
  issuer (http://app:80) or public URL (NEXTCLOUD_PUBLIC_ISSUER_URL)
  since AS proxy obtains tokens server-to-server
- Introspection fallback: try token introspection when JWT verification
  fails, supporting both JWT and opaque token types
- Register all tool scopes in DCR: add semantic:read, collectives:read,
  collectives:write to OIDC client allowed_scopes so tokens include
  them and semantic search tools are visible to authenticated clients
- Auto-create Astrolabe OAuth client: new app-hook creates OIDC client
  and stores credentials in config.php so the "Authorize via OAuth"
  button works without manual setup

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 15:05:26 +02:00
Chris CoutinhoandClaude Opus 4.6 47fb562326 fix: replace assert with proper guard and invalidate scope cache after provisioning
Replace `assert entry.code_challenge` with a proper if-guard returning a
500 JSON error in the token endpoint, since Python's -O flag strips
asserts and would silently disable PKCE enforcement.

Invalidate the scope cache immediately after Login Flow v2 provisioning
completes, so users no longer hit ProvisioningRequiredError for up to
5 minutes after successfully authenticating.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 09:31:36 +01:00
Chris CoutinhoandClaude Opus 4.6 1fae6920be fix: disable NC rate limiting in dev/CI and add token endpoint diagnostics
Disable Nextcloud's bruteforce protection and rate limiting via a new
post-installation hook, preventing 429 errors during repeated DCR calls
in CI. Add warning-level logging to all 8 error paths in the AS proxy
token endpoint to make login-flow 400 errors diagnosable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 08:57:02 +01:00
Chris CoutinhoandClaude Opus 4.6 f43343356e fix: address review feedback — security, caching, CI 429 retry
- Add 429 retry with exponential backoff to register_client() (fixes CI
  oauth matrix failures from parallel DCR requests)
- Make client_id, redirect_uri, and PKCE mandatory at token endpoint
- Add null-checks for discovery_url and OAuth credentials in proxy flows
- Add OIDC discovery document caching with 5-min TTL
- Add per-IP rate limiting on /oauth/register DCR proxy
- Discover DCR endpoint from OIDC discovery instead of hardcoding
- Extract extract_user_id_from_token to auth/token_utils.py (breaks
  circular imports between server/ and auth/ layers)
- Add TTL scope cache in scope_authorization.py (avoids DB hit per tool)
- Add defense-in-depth scope validation in storage layer
- Broaden elicitation exception handling with graceful fallback
- Add idempotentHint to nc_auth_check_status, return "pending" status
  after accepted elicitation, add polling interval to description
- Change ALL_SUPPORTED_SCOPES from tuple to frozenset for O(1) lookups
- Replace Optional[str] with str | None throughout config.py
- Use default_factory for ProxyCodeEntry/ASProxySession dataclasses
- Add proxy code/session cleanup to background loop
- Fix OIDC verification CI step to only run for oauth/login-flow modes
- Add unit tests for access.py REST endpoints (10 tests)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 17:22:23 +01:00
Chris CoutinhoandClaude Opus 4.6 9d1a84af5a feat(auth): implement OAuth AS proxy to fix audience mismatch (ADR-023)
MCP clients like Claude Code were unable to use tools because tokens
obtained directly from Nextcloud had the wrong audience claim. The MCP
server now acts as its own OAuth Authorization Server, proxying auth
to Nextcloud with its own client_id so tokens have the correct audience.

New endpoints: /.well-known/oauth-authorization-server, /oauth/token,
/oauth/register. Modified /oauth/authorize from pass-through to
intermediary pattern. PRM now points authorization_servers to the MCP
server instead of Nextcloud.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 11:25:54 +01:00
Chris CoutinhoandClaude Opus 4.6 0d14c75eb1 fix: address remaining PR #589 review findings
- Consolidate MCP session + login flow cleanup into _mcp_session_with_login_flow() helper,
  replacing 4 duplicated AsyncExitStack sites in app.py
- Fix get_shared_storage() race condition by using module-level anyio.Lock() init
  (reverts regression from ba59763)
- Collapse cosmetic if/else branching in scope_authorization.py
- Consolidate dual password storage paths into single store_app_password_with_scopes() call
- Mark unused request param as _ in list_supported_scopes
- Make ALL_SUPPORTED_SCOPES an immutable tuple; use list() instead of .copy()
- Add hasattr(ctx, "elicit") guard in elicitation.py, narrow except to NotImplementedError
- Add YAML comment explaining --oauth flag for mcp-login-flow service

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 09:59:56 +01:00
Chris CoutinhoandClaude Opus 4.6 ba597634bd fix: address PR #589 review findings
- 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>
2026-03-02 09:10:57 +01:00
Chris CoutinhoandClaude Opus 4.6 1a6ce0fa7d fix: address PR review issues for Login Flow v2
- Fix circular dependency in scope_authorization: auth tools requiring
  only identity scopes (openid/profile/email) now bypass the login flow
  provisioning check, so unprovisioned users can call provisioning tools
- Fix no-op detection in nc_auth_update_scopes: NULL scopes (legacy "all")
  now correctly map to ALL_SUPPORTED_SCOPES instead of empty set
- Fix get_app_password_with_scopes swallowing exceptions: re-raise instead
  of returning None, matching sibling methods
- Add missing audit logging to update_app_password_scopes,
  delete_login_flow_session, and delete_expired_login_flow_sessions
- Pin setup-uv to v7.3.1 in CI unit-test job (was v7.3.0)
- Add FastMCP type annotation to register_auth_tools parameter
- Log warning when user accepts elicitation without checking acknowledged box

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 19:02:30 +01:00
Chris CoutinhoandClaude Opus 4.6 db1e0606ad fix: address PR #589 review feedback (round 2)
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>
2026-03-01 16:35:31 +01:00
Chris CoutinhoandClaude Opus 4.6 e28af5453b fix: address PR #589 review feedback for Login Flow v2
- Fix data loss in nc_auth_update_scopes: remove premature
  delete_app_password call; old password stays valid until upsert
  replaces it on successful re-provisioning
- Replace assert with proper error return in nc_auth_check_status
- Add lazy singleton for RefreshTokenStorage in auth_tools,
  scope_authorization, and context to avoid per-call re-initialization
- Centralize _is_login_flow_mode() to get_settings().enable_login_flow
  and remove duplicate definitions and per-call os.getenv reads
- Add dev-only comment to TOKEN_ENCRYPTION_KEY in docker-compose.yml
- Gate OIDC build steps in CI behind matrix.needs-playwright
- Add diagnostic step reporting Playwright skip count in CI

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-28 10:08:55 +01:00