Chris CoutinhoandClaude Opus 4.7
15dbb26349
Pre-launch hardening for the hosted Astrolabe Cloud offering. Addresses all five findings raised in #626 (Tim Kaufmann, code review of v0.65.0). Re-verified against master before fixing. Finding 3 (LLM-controllable user_id) — drop user_id from the public signatures of provision_nextcloud_access, revoke_nextcloud_access, check_provisioning_status, check_logged_in. Tool wrappers now always derive identity from the verified AccessToken; user_id is no longer accepted as MCP input. Adds parameterized CI-guard test that locks the schema. Finding 2 (predictable session cookie) — replace mcp_session=<user_id> cookie with a cryptographically random session_id mapped server-side (new browser_sessions table, alembic 005). Cookie value is opaque, expires, revocable. SessionAuthBackend looks up user_id via the new mapping and additionally requires a refresh token to fail closed. Finding 4 (logout doesn't revoke refresh token) — oauth_logout now calls the IdP revocation_endpoint (RFC 7009) when advertised, deletes the stored refresh token regardless, and clears the browser_sessions row. Cleanup is best-effort: logout always 302s. Finding 1 (unverified ID token decodes) — verify_id_token helper does JWKS signature + issuer + audience + exp + nonce checks per OIDC core 3.1.3.7. Used by both OAuth callback handlers (browser + MCP). Removes the four "verify_signature: False" decodes that previously trusted IdP claims unconditionally. Drops dead-code _validate_token_audience in token_broker. Refactors token_utils + provisioning_decorator to read user_id from the verified AccessToken instead of re-decoding the JWT. Finding 5 (hardcoded Fernet keys in docker-compose.yml) — replace the three inline TOKEN_ENCRYPTION_KEY values with required env var interpolation; document in env.sample. Test coverage: 4 new unit test modules (signature pinning, browser sessions, ID-token verification, logout + revoke + session backend). 693 unit tests pass; ruff/format/ty clean. Migration note: existing browser admin-UI sessions become invalid on rollout (cookies are looked up against the new browser_sessions table, which starts empty). Users re-login. MCP API access is unaffected. Tracked on Astrolabe Cloud POC board card #37. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
274 lines
9.8 KiB
Plaintext
274 lines
9.8 KiB
Plaintext
# ============================================
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# DEPLOYMENT MODE SELECTION
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# ============================================
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# Optional: Explicitly declare deployment mode (ADR-021)
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# If not set, mode is auto-detected from other settings
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# Valid values: single_user_basic, multi_user_basic, oauth_single_audience,
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# oauth_token_exchange
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#
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# Recommendation: Set this for clarity and to catch configuration errors early
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#MCP_DEPLOYMENT_MODE=oauth_single_audience
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# ============================================
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# COMMON SETTINGS (Required for all modes)
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# ============================================
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# Your Nextcloud instance URL (without trailing slash)
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NEXTCLOUD_HOST=
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# Fernet key for encrypting refresh tokens / app passwords / browser
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# sessions in SQLite. Required by every docker-compose profile that runs
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# the MCP server (single-user, multi-user-basic, keycloak, login-flow).
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# Generate one with:
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# python -c "from cryptography.fernet import Fernet; print(Fernet.generate_key().decode())"
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# NEVER commit a real key. Each environment (dev / staging / prod) needs
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# its own key.
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TOKEN_ENCRYPTION_KEY=
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# ============================================
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# SINGLE-USER BASICAUTH MODE
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# ============================================
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# Simplest deployment - one user, credentials in environment
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# Use for: Personal instances, local development, testing
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#
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# Required:
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NEXTCLOUD_USERNAME=
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NEXTCLOUD_PASSWORD=
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#
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# Optional features (semantic search, document processing):
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# See "Optional Features" section below
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# ============================================
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# MULTI-USER BASICAUTH MODE
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# ============================================
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# Users provide credentials in request headers (pass-through)
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# Use for: Multi-user without OAuth, simple shared deployments
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#
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# Required:
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#ENABLE_MULTI_USER_BASIC_AUTH=true
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#
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# Optional - Background Operations (for semantic search, future features):
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# Enable background token storage using app passwords (via Astrolabe)
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# Required for semantic search in multi-user mode
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# Note: ENABLE_SEMANTIC_SEARCH automatically enables this in multi-user modes
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#ENABLE_BACKGROUND_OPERATIONS=true
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#NEXTCLOUD_OIDC_CLIENT_ID=
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#NEXTCLOUD_OIDC_CLIENT_SECRET=
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#TOKEN_ENCRYPTION_KEY=
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#TOKEN_STORAGE_DB=/app/data/tokens.db
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#
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# Optional features (semantic search, document processing):
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# See "Optional Features" section below
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# ============================================
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# OAUTH SINGLE-AUDIENCE MODE (Recommended)
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# ============================================
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# Multi-user OAuth with single-audience tokens
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# Use for: Multi-user production deployments, enhanced security
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# Tokens work for both MCP server and Nextcloud APIs (pass-through)
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#
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# Required: None (uses Dynamic Client Registration if credentials not provided)
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#
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# Optional - Pre-registered OAuth Client:
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# If you pre-register the client instead of using DCR:
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#NEXTCLOUD_OIDC_CLIENT_ID=
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#NEXTCLOUD_OIDC_CLIENT_SECRET=
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#
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# Optional - Background Operations (for semantic search, future features):
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# Enable refresh token storage for offline access
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# Note: ENABLE_SEMANTIC_SEARCH automatically enables this in multi-user modes
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#ENABLE_BACKGROUND_OPERATIONS=true
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#TOKEN_ENCRYPTION_KEY=
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#TOKEN_STORAGE_DB=/app/data/tokens.db
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#
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# Optional - Custom OIDC Discovery:
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# Auto-detected from NEXTCLOUD_HOST if not set
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#NEXTCLOUD_OIDC_DISCOVERY_URL=
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#
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# Optional - Custom Scopes:
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# Default: openid profile email offline_access notes:* calendar:* contacts:* tables:* webdav:* deck:* cookbook:*
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#NEXTCLOUD_OIDC_SCOPES=openid profile email notes:* calendar:*
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#
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# MCP Server URL (for OAuth redirects):
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#NEXTCLOUD_MCP_SERVER_URL=http://localhost:8000
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#
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# Optional features (semantic search, document processing):
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# See "Optional Features" section below
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# ============================================
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# OAUTH TOKEN EXCHANGE MODE (Advanced)
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# ============================================
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# Multi-user OAuth with RFC 8693 token exchange
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# Use for: Advanced deployments requiring separate MCP and Nextcloud tokens
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# MCP tokens are separate from Nextcloud tokens
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#
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# Required:
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#ENABLE_TOKEN_EXCHANGE=true
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#
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# Optional - Pre-registered OAuth Client:
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# If you pre-register the client instead of using DCR:
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#NEXTCLOUD_OIDC_CLIENT_ID=
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#NEXTCLOUD_OIDC_CLIENT_SECRET=
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#
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# Optional - Token Exchange Configuration:
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# Cache TTL in seconds (default: 300 = 5 minutes)
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#TOKEN_EXCHANGE_CACHE_TTL=300
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#
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# Optional - Background Operations:
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# Note: ENABLE_SEMANTIC_SEARCH automatically enables this in multi-user modes
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#ENABLE_BACKGROUND_OPERATIONS=true
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#TOKEN_ENCRYPTION_KEY=
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#TOKEN_STORAGE_DB=/app/data/tokens.db
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#
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# Optional - Custom OIDC Discovery:
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#NEXTCLOUD_OIDC_DISCOVERY_URL=
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#
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# MCP Server URL (for OAuth redirects):
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#NEXTCLOUD_MCP_SERVER_URL=http://localhost:8000
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#
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# Optional features (semantic search, document processing):
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# See "Optional Features" section below
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# ============================================
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# OAUTH CLIENT ALLOWLISTS (OAuth modes)
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# ============================================
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# Both env vars are FAIL-CLOSED: if unset/empty, the corresponding auth route
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# rejects every request. There are no built-in defaults.
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#
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# Note: ALLOWED_MCP_CLIENTS and ALLOWED_MGMT_CLIENT are currently separate to
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# keep the MCP-route and management-API auth surfaces independent. They may be
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# consolidated into a single env var later.
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# ===== ALLOWED_MCP_CLIENTS =====
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# Clients allowed to use the OAuth AS proxy (/oauth/authorize, /oauth/token).
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# Comma-separated. Each entry is either:
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# - "client_id" → loopback redirect URIs (http://localhost:*, http://127.0.0.1:*)
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# - "client_id|https://app/cb" → bind to a specific HTTPS callback
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# HTTP redirect URIs are rejected unless the host is loopback (localhost/127.0.0.1/::1).
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#ALLOWED_MCP_CLIENTS=claude-desktop, zed-editor, cloud-app|https://cloud.example.com/cb
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# ===== ALLOWED_MGMT_CLIENT =====
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# OIDC client_ids whose tokens are accepted by the management API
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# (/api/management/*). Comma-separated. The token's `client_id` claim must
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# match one of these entries. Typical value: the Astrolabe NC PHP app's
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# OAuth client_id (ADR-018).
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#ALLOWED_MGMT_CLIENT=astrolabe
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# ============================================
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# OPTIONAL FEATURES (All Deployment Modes)
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# ============================================
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# ===== SEMANTIC SEARCH =====
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# AI-powered semantic search across Nextcloud content
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# Requires: Qdrant vector database + embedding provider (Ollama, Bedrock, or Simple fallback)
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#
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# Enable semantic search:
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#ENABLE_SEMANTIC_SEARCH=true
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#
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# Note for Multi-User Modes:
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# ENABLE_SEMANTIC_SEARCH automatically enables background operations when needed
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# No need to set ENABLE_BACKGROUND_OPERATIONS separately
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# The server will automatically request refresh tokens and store them encrypted
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#
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# Vector Database - Choose ONE mode:
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# 1. In-memory (default): Set neither QDRANT_URL nor QDRANT_LOCATION
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# 2. Persistent local: Set QDRANT_LOCATION=/path/to/data
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# 3. Network: Set QDRANT_URL=http://qdrant:6333
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#
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#QDRANT_URL=http://qdrant:6333
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#QDRANT_LOCATION=:memory:
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#QDRANT_API_KEY=
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#QDRANT_COLLECTION=nextcloud_content
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#
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# Embedding Provider - Choose ONE:
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# 1. Ollama (recommended for local deployment):
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#OLLAMA_BASE_URL=http://ollama:11434
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#OLLAMA_EMBEDDING_MODEL=nomic-embed-text
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#OLLAMA_VERIFY_SSL=true
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#
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# 2. Amazon Bedrock (for AWS deployments):
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#AWS_REGION=us-east-1
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#BEDROCK_EMBEDDING_MODEL=amazon.titan-embed-text-v2:0
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# Optional: AWS credentials (uses credential chain if not set)
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#AWS_ACCESS_KEY_ID=
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#AWS_SECRET_ACCESS_KEY=
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#
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# 3. Simple (automatic fallback, no configuration needed)
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# Uses basic in-memory embeddings if no provider configured
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#
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# Document Chunking:
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# Configure how documents are split before embedding
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#DOCUMENT_CHUNK_SIZE=512
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#DOCUMENT_CHUNK_OVERLAP=50
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# ===== SEMANTIC SEARCH TUNING =====
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# Advanced parameters for vector sync background operations
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# Only modify if you understand the implications
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#
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# Document scan interval in seconds (default: 300 = 5 minutes)
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#VECTOR_SYNC_SCAN_INTERVAL=300
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#
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# Concurrent indexing workers (default: 3)
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#VECTOR_SYNC_PROCESSOR_WORKERS=3
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#
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# Max queued documents (default: 10000)
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#VECTOR_SYNC_QUEUE_MAX_SIZE=10000
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# ===== DOCUMENT PROCESSING =====
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# Extract text from PDFs, images, DOCX, etc. for semantic search
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# Disabled by default
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#
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#ENABLE_DOCUMENT_PROCESSING=false
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#DOCUMENT_PROCESSOR=unstructured
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#
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# Unstructured.io Processor (recommended):
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#ENABLE_UNSTRUCTURED=false
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#UNSTRUCTURED_API_URL=http://unstructured:8000
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#UNSTRUCTURED_TIMEOUT=120
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#UNSTRUCTURED_STRATEGY=auto
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#UNSTRUCTURED_LANGUAGES=eng,deu
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#PROGRESS_INTERVAL=10
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#
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# Tesseract OCR (lightweight, images only):
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#ENABLE_TESSERACT=false
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#TESSERACT_CMD=/usr/bin/tesseract
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#TESSERACT_LANG=eng
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#
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# Custom Processor (your own API):
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#ENABLE_CUSTOM_PROCESSOR=false
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#CUSTOM_PROCESSOR_NAME=my_ocr
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#CUSTOM_PROCESSOR_URL=http://localhost:9000/process
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#CUSTOM_PROCESSOR_API_KEY=
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#CUSTOM_PROCESSOR_TIMEOUT=60
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#CUSTOM_PROCESSOR_TYPES=application/pdf,image/jpeg,image/png
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# ===== SSL/TLS =====
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# For Nextcloud behind reverse proxies with self-signed or private CA certificates
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#
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# Disable TLS certificate verification (insecure, development only):
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#NEXTCLOUD_VERIFY_SSL=false
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#
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# Use a custom CA bundle (path to PEM file):
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#NEXTCLOUD_CA_BUNDLE=/etc/ssl/certs/my-ca.pem
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#
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# Docker example: mount the CA bundle as a volume
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# docker run -v /path/to/ca.pem:/etc/ssl/certs/my-ca.pem:ro \
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# -e NEXTCLOUD_CA_BUNDLE=/etc/ssl/certs/my-ca.pem ...
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# ===== SECURITY & ADVANCED =====
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# Cookie security (browser UI)
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# Auto-detects from NEXTCLOUD_HOST protocol if not set
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#COOKIE_SECURE=true
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# ============================================
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# DEPRECATED VARIABLES (Backward Compatibility)
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# ============================================
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# These variables still work but will be removed in v1.0.0
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# Please migrate to new names:
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#
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# Old Name → New Name
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# VECTOR_SYNC_ENABLED → ENABLE_SEMANTIC_SEARCH
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# ENABLE_OFFLINE_ACCESS → ENABLE_BACKGROUND_OPERATIONS
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#
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# Migration is optional - both old and new names work
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# Deprecation warnings will be logged when old names are used
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