c15d5b72f2
1. Tenant isolation bypass (CRITICAL): TenantResolver now verifies user has access to X-Tenant-ID via user_tenants lookup before setting context. Added VerifyAccess method to TenantLookup interface and TenantService. 2. Consolidated tenant resolution: Removed duplicate resolveTenant() from helpers.go and tenant resolution from auth middleware. TenantResolver is now the single source of truth. Deadlines and AI handlers use auth.TenantFromContext() instead of direct DB queries. 3. CalDAV credential masking: tenant settings responses now mask CalDAV passwords with "********" via maskSettingsPassword helper. Applied to GetTenant, ListTenants, and UpdateSettings responses. 4. CORS + security headers: New middleware/security.go with CORS (restricted to FRONTEND_ORIGIN) and security headers (X-Frame-Options, X-Content-Type-Options, HSTS, Referrer-Policy, X-XSS-Protection). 5. Internal error leaking: All writeError(w, 500, err.Error()) replaced with internalError() that logs via slog and returns generic "internal error" to client. Same for jsonError in tenant handler. 6. Input validation: Max length on title (500), description (10000), case_number (100), search (200). Pagination clamped to max 100. Content-Disposition filename sanitized against header injection. Regression test added for tenant access denial (403 on unauthorized X-Tenant-ID). All existing tests pass, go vet clean.
KanzlAI-mGMT
Kanzleimanagement online — law firm management for deadlines, appointments, and case tracking.
Structure
backend/ Go API server
frontend/ Next.js 15 (TypeScript, Tailwind CSS)
Development
make dev-backend # Go server on :8080
make dev-frontend # Next.js dev server
make build # Build both
make lint # Lint both
make test # Test both
Tech Stack
- Frontend: Next.js 15, TypeScript, Tailwind CSS
- Backend: Go
- Database: Supabase (PostgreSQL) —
kanzlaischema - Deploy: Dokploy on mLake (kanzlai.msbls.de)