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Charon/docs/implementation/PHASE5_SUMMARY.md
2026-03-04 18:34:49 +00:00

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# Phase 5 Implementation Summary
**Status**: ✅ COMPLETE
**Coverage**: 88.0%
**Date**: 2026-01-06
## What Was Implemented
### 1. Plugin System Core (10 phases)
- ✅ Plugin interface and registry (pre-existing, validated)
- ✅ 10 built-in DNS providers (Cloudflare, Route53, DigitalOcean, GCP, Azure, Namecheap, GoDaddy, Hetzner, Vultr, DNSimple)
- ✅ Secure plugin loader with SHA-256 verification
- ✅ Plugin database model and migrations
- ✅ Complete REST API for plugin management
- ✅ DNS provider service integration with registry
- ✅ Caddy config builder integration
- ✅ PowerDNS example plugin (compiles to 14MB .so)
- ✅ Comprehensive unit tests (88.0% coverage)
- ✅ Main.go and routes integration
### 2. Key Files Created
```
backend/pkg/dnsprovider/builtin/
├── cloudflare.go, route53.go, digitalocean.go
├── googleclouddns.go, azure.go, namecheap.go
├── godaddy.go, hetzner.go, vultr.go, dnsimple.go
├── init.go (auto-registration)
└── builtin_test.go (unit tests)
backend/internal/services/
├── plugin_loader.go (new)
└── plugin_loader_test.go (new)
backend/internal/api/handlers/
└── plugin_handler.go (new)
plugins/powerdns/
├── main.go (example plugin)
├── README.md
└── powerdns.so (compiled)
```
### 3. Files Modified
```
backend/internal/services/dns_provider_service.go
- Removed hardcoded provider lists
- Added GetSupportedProviderTypes()
- Added GetProviderCredentialFields()
backend/internal/caddy/config.go
- Uses provider.BuildCaddyConfig() from registry
- Propagation timeout from provider
backend/cmd/api/main.go
- Import builtin providers
- Initialize plugin loader
- AutoMigrate Plugin model
backend/internal/api/routes/routes.go
- Added plugin API routes
- AutoMigrate Plugin model
backend/internal/api/handlers/dns_provider_handler_test.go
- Added mock methods for new service interface
```
## Test Results
```
Coverage: 88.0% (Required: 85%+)
Status: ✅ PASS
All packages compile: ✅ YES
PowerDNS plugin builds: ✅ YES (14MB)
```
## API Endpoints
```
GET /admin/plugins - List all plugins
GET /admin/plugins/:id - Get plugin details
POST /admin/plugins/:id/enable - Enable plugin
POST /admin/plugins/:id/disable - Disable plugin
POST /admin/plugins/reload - Reload all plugins
```
## Build Commands
```bash
# Build backend
cd backend && go build -v ./...
# Build PowerDNS plugin
cd plugins/powerdns
CGO_ENABLED=1 go build -buildmode=plugin -o powerdns.so main.go
# Run tests with coverage
cd backend
go test -v -coverprofile=coverage.txt ./...
```
## Security Features
- ✅ SHA-256 signature verification
- ✅ Directory permission validation (rejects world-writable)
- ✅ Windows platform rejection (Go plugin limitation)
- ✅ Usage checking (prevents disabling in-use plugins)
## Known Limitations
- Linux/macOS only (Go plugin constraint)
- CGO required (`CGO_ENABLED=1`)
- Same Go version required for plugin and Charon
- No hot reload (requires application restart)
- ~14MB per plugin (Go runtime embedded)
## Next Steps
Frontend implementation (Phase 6) - Plugin management UI
## Documentation
See [PHASE5_PLUGINS_COMPLETE.md](./PHASE5_PLUGINS_COMPLETE.md) for full details.