Commit Graph

5 Commits

Author SHA1 Message Date
a3bac86647 feat: Complete IndieAuth server removal (Phases 2-4)
Completed all remaining phases of ADR-030 IndieAuth provider removal.
StarPunk no longer acts as an authorization server - all IndieAuth
operations delegated to external providers.

Phase 2 - Remove Token Issuance:
- Deleted /auth/token endpoint
- Removed token_endpoint() function from routes/auth.py
- Deleted tests/test_routes_token.py

Phase 3 - Remove Token Storage:
- Deleted starpunk/tokens.py module entirely
- Created migration 004 to drop tokens and authorization_codes tables
- Deleted tests/test_tokens.py
- Removed all internal token CRUD operations

Phase 4 - External Token Verification:
- Created starpunk/auth_external.py module
- Implemented verify_external_token() for external IndieAuth providers
- Updated Micropub endpoint to use external verification
- Added TOKEN_ENDPOINT configuration
- Updated all Micropub tests to mock external verification
- HTTP timeout protection (5s) for external requests

Additional Changes:
- Created migration 003 to remove code_verifier from auth_state
- Fixed 5 migration tests that referenced obsolete code_verifier column
- Updated 11 Micropub tests for external verification
- Fixed test fixture and app context issues
- All 501 tests passing

Breaking Changes:
- Micropub clients must use external IndieAuth providers
- TOKEN_ENDPOINT configuration now required
- Existing internal tokens invalid (tables dropped)

Migration Impact:
- Simpler codebase: -500 lines of code
- Fewer database tables: -2 tables (tokens, authorization_codes)
- More secure: External providers handle token security
- More maintainable: Less authentication code to maintain

Standards Compliance:
- W3C IndieAuth specification
- OAuth 2.0 Bearer token authentication
- IndieWeb principle: delegate to external services

Related:
- ADR-030: IndieAuth Provider Removal Strategy
- ADR-050: Remove Custom IndieAuth Server
- Migration 003: Remove code_verifier from auth_state
- Migration 004: Drop tokens and authorization_codes tables

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-24 17:23:46 -07:00
e5050a0a7e feat: Implement IndieAuth token and authorization endpoints (Phase 2)
Following design in /docs/design/micropub-architecture.md and
/docs/decisions/ADR-029-micropub-v1-implementation-phases.md

Token Endpoint (/auth/token):
- Exchange authorization codes for access tokens
- Form-encoded POST requests per IndieAuth spec
- PKCE support (code_verifier validation)
- OAuth 2.0 error responses
- Validates client_id, redirect_uri, me parameters
- Returns Bearer tokens with scope

Authorization Endpoint (/auth/authorization):
- GET: Display consent form (requires admin login)
- POST: Process approval/denial
- PKCE support (code_challenge storage)
- Scope validation and filtering
- Integration with session management
- Proper error handling and redirects

All 33 Phase 2 tests pass (17 token + 16 authorization)

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-24 12:26:54 -07:00
44a97e4ffa fix: Change auth blueprint prefix from /admin to /auth (v0.9.2)
The auth routes were registered under /admin/* but the IndieAuth
redirect_uri was configured as /auth/callback, causing 404 errors
when providers redirected back after authentication.

- Change auth blueprint url_prefix from "/admin" to "/auth"
- Update test expectations for new auth route paths
- Add ADR-022 documenting the architectural decision

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-22 18:22:08 -07:00
5e50330bdf feat: Implement PKCE authentication for IndieLogin.com
This fixes critical IndieAuth authentication by implementing PKCE (Proof Key
for Code Exchange) as required by IndieLogin.com API specification.

Added:
- PKCE code_verifier and code_challenge generation (RFC 7636)
- Database column: auth_state.code_verifier for PKCE support
- Issuer validation for authentication callbacks
- Comprehensive PKCE unit tests (6 tests, all passing)
- Database migration script for code_verifier column

Changed:
- Corrected IndieLogin.com API endpoints (/authorize and /token)
- State token validation now returns code_verifier for token exchange
- Authentication flow follows IndieLogin.com API specification exactly
- Enhanced logging with code_verifier redaction

Removed:
- OAuth metadata endpoint (/.well-known/oauth-authorization-server)
  Added in v0.7.0 but not required by IndieLogin.com
- h-app microformats markup from templates
  Modified in v0.7.1 but not used by IndieLogin.com
- indieauth-metadata link from HTML head

Security:
- PKCE prevents authorization code interception attacks
- Issuer validation prevents token substitution attacks
- Code verifier securely stored, redacted in logs, and single-use

Documentation:
- Version: 0.8.0
- CHANGELOG updated with v0.8.0 entry and v0.7.x notes
- ADR-016 and ADR-017 marked as superseded by ADR-019
- Implementation report created in docs/reports/
- Test update guide created in TODO_TEST_UPDATES.md

Breaking Changes:
- Users mid-authentication will need to restart login after upgrade
- Database migration required before deployment

Related: ADR-019

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 15:43:38 -07:00
0cca8169ce feat: Implement Phase 4 Web Interface with bugfixes (v0.5.2)
## Phase 4: Web Interface Implementation

Implemented complete web interface with public and admin routes,
templates, CSS, and development authentication.

### Core Features

**Public Routes**:
- Homepage with recent published notes
- Note permalinks with microformats2
- Server-side rendering (Jinja2)

**Admin Routes**:
- Login via IndieLogin
- Dashboard with note management
- Create, edit, delete notes
- Protected with @require_auth decorator

**Development Authentication**:
- Dev login bypass for local testing (DEV_MODE only)
- Security safeguards per ADR-011
- Returns 404 when disabled

**Templates & Frontend**:
- Base layouts (public + admin)
- 8 HTML templates with microformats2
- Custom responsive CSS (114 lines)
- Error pages (404, 500)

### Bugfixes (v0.5.1 → v0.5.2)

1. **Cookie collision fix (v0.5.1)**:
   - Renamed auth cookie from "session" to "starpunk_session"
   - Fixed redirect loop between dev login and admin dashboard
   - Flask's session cookie no longer conflicts with auth

2. **HTTP 404 error handling (v0.5.1)**:
   - Update route now returns 404 for nonexistent notes
   - Delete route now returns 404 for nonexistent notes
   - Follows ADR-012 HTTP Error Handling Policy
   - Pattern consistency across all admin routes

3. **Note model enhancement (v0.5.2)**:
   - Exposed deleted_at field from database schema
   - Enables soft deletion verification in tests
   - Follows ADR-013 transparency principle

### Architecture

**New ADRs**:
- ADR-011: Development Authentication Mechanism
- ADR-012: HTTP Error Handling Policy
- ADR-013: Expose deleted_at Field in Note Model

**Standards Compliance**:
- Uses uv for Python environment
- Black formatted, Flake8 clean
- Follows git branching strategy
- Version incremented per versioning strategy

### Test Results

- 405/406 tests passing (99.75%)
- 87% code coverage
- All security tests passing
- Manual testing confirmed working

### Documentation

- Complete implementation reports in docs/reports/
- Architecture reviews in docs/reviews/
- Design documents in docs/design/
- CHANGELOG updated for v0.5.2

### Files Changed

**New Modules**:
- starpunk/dev_auth.py
- starpunk/routes/ (public, admin, auth, dev_auth)

**Templates**: 10 files (base, pages, admin, errors)
**Static**: CSS and optional JavaScript
**Tests**: 4 test files for routes and templates
**Docs**: 20+ architectural and implementation documents

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 23:01:53 -07:00