Arjun PatelandGitHub
d262f734f0
* mobile: wire notification registration and listener
* implement backend components for push notifications
* refactor: agentic comment cleanup
* docs: use proper module name for particle processor
* set required env variables for push notifications
* bump version
* fix: always upsert push token on mobile start
* Revert "fix: always upsert push token on mobile start"
This reverts commit 90ff18a788.
* send push notifications regardless of online status
115 lines
3.2 KiB
Go
115 lines
3.2 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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ctx context.Context // server-scoped; cancelling closes all WebSockets gracefully
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hub *Hub
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bridge *RedisBridge
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authSvc auth.SessionReader
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}
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func NewServer(ctx context.Context, hub *Hub, bridge *RedisBridge, authSvc auth.SessionReader) *Server {
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return &Server{
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ctx: ctx,
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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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func (s *Server) HandleWebSocket(w http.ResponseWriter, r *http.Request) {
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// Token rides in the query string — WebSocket upgrades can't carry 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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ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
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// CORS is enforced at the gateway.
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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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// Use the server context, not r.Context(): after upgrade the HTTP request
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// context can be cancelled by load balancers and nhooyr/websocket would
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// then permanently close the conn.
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ctx, cancel := context.WithCancel(s.ctx)
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defer cancel()
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// Auto-subscribe to the presence channel so this user appears online.
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s.hub.Subscribe(conn, "_presence:"+session.HumanId)
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go conn.WritePump(ctx)
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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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func (s *Server) GetOnlineHumanIds(ctx context.Context, _ *pbpusher.GetOnlineHumanIdsRequest) (*pbpusher.GetOnlineHumanIdsResponse, error) {
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humanIDs, err := s.bridge.GetAllConnectedHumanIDs(ctx)
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if err != nil {
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return nil, err
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}
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return &pbpusher.GetOnlineHumanIdsResponse{HumanIds: humanIDs}, nil
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}
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func (s *Server) IsOnline(ctx context.Context, req *pbpusher.IsOnlineRequest) (*pbpusher.IsOnlineResponse, error) {
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allOnline, err := s.bridge.GetAllConnectedHumanIDs(ctx)
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if err != nil {
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return nil, err
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}
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onlineSet := make(map[string]bool, len(allOnline))
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for _, id := range allOnline {
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onlineSet[id] = true
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}
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result := make(map[string]bool, len(req.HumanIds))
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for _, id := range req.HumanIds {
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result[id] = onlineSet[id]
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}
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return &pbpusher.IsOnlineResponse{Online: result}, nil
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}
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func (s *Server) GetChannelPresence(ctx context.Context, req *pbpusher.GetChannelPresenceRequest) (*pbpusher.GetChannelPresenceResponse, 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.GetChannelPresenceResponse{
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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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