Commit Graph

4 Commits

Author SHA1 Message Date
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- ADR-016 and ADR-017 marked as superseded by ADR-019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
01e66a063e feat: Add detailed IndieAuth logging with security-aware token redaction
- Add logging helper functions with automatic token redaction
- Implement comprehensive logging throughout auth flow
- Add production warning for DEBUG logging
- Add 14 new tests for logging functionality
- Update version to v0.7.0

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-19 14:51:30 -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
d4f1bfb198 feat: Implement Phase 3 authentication module with IndieLogin support
Implement complete authentication system following ADR-010 and Phase 3 design specs.
This is a MINOR version increment (0.3.0 -> 0.4.0) as it adds new functionality.

Authentication Features:
- IndieLogin authentication flow via indielogin.com
- Secure session management with SHA-256 token hashing
- CSRF protection with single-use state tokens
- Session lifecycle (create, verify, destroy)
- require_auth decorator for protected routes
- Automatic cleanup of expired sessions
- IP address and user agent tracking

Security Measures:
- Cryptographically secure token generation (secrets module)
- Token hashing for storage (never plaintext)
- SQL injection prevention (prepared statements)
- Single-use CSRF state tokens
- 30-day session expiry with activity refresh
- Comprehensive security logging

Implementation Details:
- starpunk/auth.py: 406 lines, 6 core functions, 4 helpers, 4 exceptions
- tests/test_auth.py: 648 lines, 37 tests, 96% coverage
- Database schema updates for sessions and auth_state tables
- URL validation utility added to utils.py

Test Coverage:
- 37 authentication tests
- 96% code coverage (exceeds 90% target)
- All security features tested
- Edge cases and error paths covered

Documentation:
- Implementation report in docs/reports/
- Updated CHANGELOG.md with detailed changes
- Version incremented to 0.4.0
- ADR-010 and Phase 3 design docs included

Follows project standards:
- Black code formatting (88 char lines)
- Flake8 linting (no errors)
- Python coding standards
- Type hints on all functions
- Comprehensive docstrings

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Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-18 20:35:36 -07:00