Arjun PatelandGitHub
3d8fa79657
* setup infra for pusher service * setup client sdk for pusher service * fix: ping parse failure * fix: send pong back to client avoid disconnections every 2.5 minutes * increase replicas * feat: show presence and compose indicator
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package pusher
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import (
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"context"
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"log/slog"
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"net/http"
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"github.com/flowy-live/llink/genproto/llink/pusher"
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"github.com/flowy-live/llink/internal/auth"
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"github.com/google/uuid"
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"nhooyr.io/websocket"
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)
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// Server handles WebSocket upgrades and gRPC presence queries.
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type Server struct {
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pbpusher.UnimplementedPusherServiceServer
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hub *Hub
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bridge *RedisBridge
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authSvc auth.AuthService
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}
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// NewServer creates a new pusher server.
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func NewServer(hub *Hub, bridge *RedisBridge, authSvc auth.AuthService) *Server {
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return &Server{
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hub: hub,
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bridge: bridge,
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authSvc: authSvc,
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}
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}
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// HandleWebSocket handles the WebSocket upgrade and connection lifecycle.
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func (s *Server) HandleWebSocket(w http.ResponseWriter, r *http.Request) {
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// Authenticate via query param (WebSocket upgrade can't use custom headers)
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token := r.URL.Query().Get("token")
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if token == "" {
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http.Error(w, "token required", http.StatusUnauthorized)
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return
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}
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session, err := s.authSvc.GetSession(r.Context(), token)
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if err != nil {
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http.Error(w, "unauthorized", http.StatusUnauthorized)
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return
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}
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// Accept WebSocket upgrade
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ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
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// Allow all origins for now — CORS is handled at the gateway level
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InsecureSkipVerify: true,
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})
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if err != nil {
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slog.Error("websocket accept failed", "error", err)
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return
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}
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connID := uuid.New().String()
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conn := newConn(connID, session.HumanId, ws)
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slog.Info("websocket connected", "connId", connID, "humanId", session.HumanId)
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ctx, cancel := context.WithCancel(r.Context())
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defer cancel()
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// WritePump runs in a separate goroutine
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go conn.WritePump(ctx)
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// ReadPump blocks until the connection closes
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conn.ReadPump(ctx, s.hub)
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slog.Info("websocket disconnected", "connId", connID, "humanId", session.HumanId)
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}
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// BulkGetPresence implements the gRPC PusherService.
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func (s *Server) BulkGetPresence(ctx context.Context, req *pbpusher.BulkGetPresenceRequest) (*pbpusher.BulkGetPresenceResponse, error) {
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presence, err := s.bridge.GetPresence(ctx, req.ChannelIds)
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if err != nil {
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return nil, err
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}
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resp := &pbpusher.BulkGetPresenceResponse{
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Presences: make(map[string]*pbpusher.ChannelPresence, len(presence)),
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}
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for chID, humanIDs := range presence {
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resp.Presences[chID] = &pbpusher.ChannelPresence{
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HumanIds: humanIDs,
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}
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}
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return resp, nil
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}
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