107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// BirdWatch Relay — self-hosted, end-to-end encrypted push relay for Frigate NVR.
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// Subscribes to Frigate's /ws WebSocket, encrypts each event payload with each
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// registered device's X25519 public key (NaCl sealed box), and forwards the
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// ciphertext via Firebase Cloud Messaging. Google FCM only ever sees ciphertext
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// and a device token — never event content.
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package main
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import (
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"context"
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"errors"
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"log/slog"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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"github.com/cyrilinait/birdwatch-relay/internal/config"
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"github.com/cyrilinait/birdwatch-relay/internal/fcm"
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"github.com/cyrilinait/birdwatch-relay/internal/frigate"
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"github.com/cyrilinait/birdwatch-relay/internal/handlers"
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"github.com/cyrilinait/birdwatch-relay/internal/notify"
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"github.com/cyrilinait/birdwatch-relay/internal/storage"
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)
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func main() {
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logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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slog.SetDefault(logger)
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cfg, err := config.Load()
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if err != nil {
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logger.Error("config load failed", "err", err)
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os.Exit(1)
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}
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store, err := storage.Open(cfg.DBPath)
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if err != nil {
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logger.Error("storage open failed", "err", err, "path", cfg.DBPath)
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os.Exit(1)
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}
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defer store.Close()
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rootCtx, cancelRoot := context.WithCancel(context.Background())
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defer cancelRoot()
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sender, err := fcm.New(rootCtx, cfg.FirebaseKeyPath)
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if err != nil {
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logger.Error("fcm init failed", "err", err)
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os.Exit(1)
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}
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dispatcher := notify.NewDispatcher(store, sender)
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frigateClient, err := frigate.NewClient(
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cfg.FrigateURL,
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cfg.FrigateUser,
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cfg.FrigatePassword,
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func(payload []byte) {
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ctx, cancel := context.WithTimeout(rootCtx, 15*time.Second)
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defer cancel()
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dispatcher.Send(ctx, payload)
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},
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)
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if err != nil {
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logger.Error("frigate client init failed", "err", err)
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os.Exit(1)
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}
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go frigateClient.Run(rootCtx)
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logger.Info("frigate ws subscriber started", "url", cfg.FrigateURL)
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mux := http.NewServeMux()
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handlers.Register(mux, store, cfg)
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srv := &http.Server{
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Addr: ":" + cfg.Port,
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Handler: mux,
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ReadHeaderTimeout: 5 * time.Second,
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ReadTimeout: 30 * time.Second,
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WriteTimeout: 30 * time.Second,
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IdleTimeout: 120 * time.Second,
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MaxHeaderBytes: 8 * 1024,
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}
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go func() {
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logger.Info("birdwatch-relay listening", "port", cfg.Port)
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if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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logger.Error("http server failed", "err", err)
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os.Exit(1)
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}
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}()
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stop := make(chan os.Signal, 1)
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signal.Notify(stop, os.Interrupt, syscall.SIGTERM)
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<-stop
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logger.Info("shutdown signal received")
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cancelRoot()
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shutdownCtx, cancelShutdown := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancelShutdown()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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logger.Error("shutdown error", "err", err)
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}
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}
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