Commit Graph

5 Commits

Author SHA1 Message Date
hailin 3d176e1132 feat: complete keygen_session_id implementation for signing sessions
- Regenerate protobuf Go code with KeygenSessionId fields
- Session Coordinator correctly parses, stores, and returns keygen_session_id
- Message Router Client parses keygen_session_id in JoinSession response
- participate_signing.go uses keygen_session_id for precise share lookup
- Database schema already includes keygen_session_id column

This fixes the signing issue where wrong keyshares were loaded for multi-account scenarios.
2025-12-06 08:57:30 -08:00
hailin 55f5ec49f2 chore(mpc-system): remove duplicate protobuf generated files
Remove redundant .pb.go files from api/proto/ directory.
The actual generated files are in api/grpc/coordinator/v1/ and api/grpc/router/v1/.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 20:47:55 -08:00
hailin 135e821386 feat(mpc-system): integrate reliability mechanisms and enable party-driven architecture
- Enable SubscribeSessionEvents for automatic session participation
- Integrate heartbeat mechanism with pending message count
- Add ACK sending after message receipt for reliable delivery
- Add party activity tracking in session coordinator
- Add CountPendingByParty for heartbeat response
- Add retry package with exponential backoff for gRPC clients
- Add memory-based message broker and event publisher adapters
- Add account service integration for keygen completion
- Add party timeout checking background job
- Add notification service stub for future implementation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 20:30:03 -08:00
hailin c52b6aa980 refactor(mpc-system): replace K8s party discovery with Message Router-based discovery
- Add GetRegisteredParties gRPC method to Message Router for party discovery
- Create MessageRouterPartyDiscovery adapter in Session Coordinator
- Remove K8s dependency from Session Coordinator (works in any environment)
- Add party registration to server-party-api on startup
- Fix docker-compose.yml: add MESSAGE_ROUTER_ADDR to session-coordinator

This change implements a fully decentralized party discovery mechanism:
- Parties register themselves to Message Router on startup
- Session Coordinator queries Message Router for available parties
- Works in Docker Compose, K8s, or any deployment environment

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 16:37:16 -08:00
hailin c976fd3eb1 feat(mpc-system): implement party-driven architecture with SessionEvent broadcasting
Fully implemented party-driven architecture according to international standards (Fireblocks, ING Bank, ZenGo patterns):

**Architecture Changes:**
- Parties actively connect to Message Router (not passively called by coordinator)
- Session Coordinator publishes SessionEvents when creating sessions
- Parties automatically subscribe and respond to SessionEvents
- PartyID-based routing instead of network addresses

**New Features:**
1. Session Coordinator → Message Router gRPC Client
   - PublishSessionEvent RPC for broadcasting session lifecycle events
   - Automatic event publishing after session creation

2. Message Router SessionEvent Broadcasting
   - SubscribeSessionEvents RPC for party subscriptions
   - PublishSessionEvent RPC for coordinator publishing
   - Targeted broadcasting to selected parties

3. Server-Party Auto-Registration & Subscription
   - RegisterParty on startup with role (persistent/delegate/temporary)
   - SubscribeSessionEvents for automatic session notifications
   - Event handler for automatic MPC participation

**Files Modified:**
- api/proto/message_router.proto: Added SessionEvent messages and RPCs
- services/message-router/adapters/input/grpc/message_grpc_handler.go: PublishSessionEvent handler
- services/session-coordinator/adapters/output/grpc/message_router_client.go: NEW - gRPC client
- services/session-coordinator/application/use_cases/create_session.go: SessionEvent publishing
- services/session-coordinator/cmd/server/main.go: Message Router client initialization
- services/server-party/adapters/output/grpc/message_router_client.go: RegisterParty + SubscribeSessionEvents
- services/server-party/cmd/server/main.go: Party registration and event subscription (commented pending full integration)
- go.mod/go.sum: Updated grpc to v1.77.0

**Technical Details:**
- gRPC streaming for SessionEvent subscriptions
- Non-blocking channel broadcasts prevent slow subscribers from blocking
- PartyRole support (persistent/delegate/temporary)
- Join tokens distributed via SessionEvent

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-05 08:44:05 -08:00