talksik
119 lines
3.4 KiB
Go
119 lines
3.4 KiB
Go
package pusher
|
|
|
|
import (
|
|
"context"
|
|
"log/slog"
|
|
"net/http"
|
|
|
|
"github.com/flowy-live/llink/genproto/llink/pusher"
|
|
"github.com/flowy-live/llink/internal/auth"
|
|
"github.com/google/uuid"
|
|
"nhooyr.io/websocket"
|
|
)
|
|
|
|
// Server handles WebSocket upgrades and gRPC presence queries.
|
|
type Server struct {
|
|
pbpusher.UnimplementedPusherServiceServer
|
|
|
|
hub *Hub
|
|
bridge *RedisBridge
|
|
authSvc auth.AuthService
|
|
}
|
|
|
|
// NewServer creates a new pusher server.
|
|
func NewServer(hub *Hub, bridge *RedisBridge, authSvc auth.AuthService) *Server {
|
|
return &Server{
|
|
hub: hub,
|
|
bridge: bridge,
|
|
authSvc: authSvc,
|
|
}
|
|
}
|
|
|
|
// HandleWebSocket handles the WebSocket upgrade and connection lifecycle.
|
|
func (s *Server) HandleWebSocket(w http.ResponseWriter, r *http.Request) {
|
|
// Authenticate via query param (WebSocket upgrade can't use custom headers)
|
|
token := r.URL.Query().Get("token")
|
|
if token == "" {
|
|
http.Error(w, "token required", http.StatusUnauthorized)
|
|
return
|
|
}
|
|
|
|
session, err := s.authSvc.GetSession(r.Context(), token)
|
|
if err != nil {
|
|
http.Error(w, "unauthorized", http.StatusUnauthorized)
|
|
return
|
|
}
|
|
|
|
// Accept WebSocket upgrade
|
|
ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
|
|
// Allow all origins for now — CORS is handled at the gateway level
|
|
InsecureSkipVerify: true,
|
|
})
|
|
if err != nil {
|
|
slog.Error("websocket accept failed", "error", err)
|
|
return
|
|
}
|
|
|
|
connID := uuid.New().String()
|
|
conn := newConn(connID, session.HumanId, ws)
|
|
|
|
slog.Info("websocket connected", "connId", connID, "humanId", session.HumanId)
|
|
|
|
ctx, cancel := context.WithCancel(r.Context())
|
|
defer cancel()
|
|
|
|
// Auto-subscribe to presence channel so this user appears online
|
|
s.hub.Subscribe(conn, "_presence:"+session.HumanId)
|
|
|
|
// WritePump runs in a separate goroutine
|
|
go conn.WritePump(ctx)
|
|
|
|
// ReadPump blocks until the connection closes
|
|
conn.ReadPump(ctx, s.hub)
|
|
|
|
slog.Info("websocket disconnected", "connId", connID, "humanId", session.HumanId)
|
|
}
|
|
|
|
// GetOnlineHumanIds returns all currently connected human IDs.
|
|
func (s *Server) GetOnlineHumanIds(ctx context.Context, _ *pbpusher.GetOnlineHumanIdsRequest) (*pbpusher.GetOnlineHumanIdsResponse, error) {
|
|
humanIDs, err := s.bridge.GetAllConnectedHumanIDs(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &pbpusher.GetOnlineHumanIdsResponse{HumanIds: humanIDs}, nil
|
|
}
|
|
|
|
// IsOnline checks whether specific humans are currently online.
|
|
func (s *Server) IsOnline(ctx context.Context, req *pbpusher.IsOnlineRequest) (*pbpusher.IsOnlineResponse, error) {
|
|
allOnline, err := s.bridge.GetAllConnectedHumanIDs(ctx)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
onlineSet := make(map[string]bool, len(allOnline))
|
|
for _, id := range allOnline {
|
|
onlineSet[id] = true
|
|
}
|
|
result := make(map[string]bool, len(req.HumanIds))
|
|
for _, id := range req.HumanIds {
|
|
result[id] = onlineSet[id]
|
|
}
|
|
return &pbpusher.IsOnlineResponse{Online: result}, nil
|
|
}
|
|
|
|
// GetChannelPresence returns presence (human IDs) for specific channels.
|
|
func (s *Server) GetChannelPresence(ctx context.Context, req *pbpusher.GetChannelPresenceRequest) (*pbpusher.GetChannelPresenceResponse, error) {
|
|
presence, err := s.bridge.GetPresence(ctx, req.ChannelIds)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
resp := &pbpusher.GetChannelPresenceResponse{
|
|
Presences: make(map[string]*pbpusher.ChannelPresence, len(presence)),
|
|
}
|
|
for chID, humanIDs := range presence {
|
|
resp.Presences[chID] = &pbpusher.ChannelPresence{
|
|
HumanIds: humanIDs,
|
|
}
|
|
}
|
|
return resp, nil
|
|
}
|