hhs
7adf81c6e5
- main.go 初始化限流器（根据 Redis 可用性选择内存/Redis 实现） - WebSocket handler 添加 query 消息限流（按 userID） - Auth API 添加登录/注册限流（按 IP） - refresh 和 logout 不限流（避免影响正常用户操作） - 修复所有测试（传递 nil limiter 参数） - 所有测试通过（包括 ws 和 api 集成测试）
291 lines
9.2 KiB
Go
291 lines
9.2 KiB
Go
package main
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import (
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"context"
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"errors"
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"net/http"
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"os/signal"
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"strings"
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"syscall"
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"time"
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"github.com/gin-gonic/gin"
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"github.com/redis/go-redis/v9"
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"github.com/hhs/camtalk/internal/api"
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"github.com/hhs/camtalk/internal/auth"
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"github.com/hhs/camtalk/internal/ai/stt"
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"github.com/hhs/camtalk/internal/ai/tts"
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"github.com/hhs/camtalk/internal/config"
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eino "github.com/hhs/camtalk/internal/eino"
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"github.com/hhs/camtalk/internal/logger"
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"github.com/hhs/camtalk/internal/ratelimit"
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"github.com/hhs/camtalk/internal/session"
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"github.com/hhs/camtalk/internal/store"
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"github.com/hhs/camtalk/internal/ws"
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migrations "github.com/hhs/camtalk/migrations"
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)
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// Version 通过构建时 -ldflags 注入，如：
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// go build -ldflags "-X main.Version=v1.0.0" ./cmd/server
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var Version string
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var startTime = time.Now()
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func main() {
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// 加载配置（工作目录用于定位 .env 和 config.yaml）
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cfg, err := config.Load(".")
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if err != nil {
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panic("failed to load config: " + err.Error())
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}
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// 初始化日志
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logger.Init(cfg.Log.Level, cfg.Log.Format)
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defer logger.Sync()
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logger.Log.Infow("config loaded",
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"env", cfg.App.Env,
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"addr", cfg.Server.Addr(),
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)
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// 初始化存储层（三级存储架构：L1 内存 → L2 Redis → L3 PostgreSQL）
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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var userRepo store.UserRepository
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var msgRepo store.MessageRepository
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var sessRepo store.SessionRepository
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// L3: PostgreSQL（冷数据持久化层）
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dsn := cfg.Storage.Persistence.DSN
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if dsn == "" {
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dsn = cfg.Storage.DSN // 兼容旧配置
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}
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if cfg.Storage.Persistence.Enabled && cfg.Storage.Persistence.Driver == "postgres" {
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if dsn == "" {
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logger.Log.Fatalw("storage.persistence.dsn is required when persistence is enabled",
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"hint", "set CAMTALK_STORAGE_DSN environment variable")
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}
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pool, err := store.NewPostgresPool(ctx, dsn)
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if err != nil {
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logger.Log.Fatalw("failed to connect to postgres", "error", err)
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}
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defer pool.Close()
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// 执行数据库迁移
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if err := store.RunMigrations(ctx, pool, migrations.FS); err != nil {
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logger.Log.Fatalw("failed to run migrations", "error", err)
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}
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userRepo = store.NewPgUserRepository(pool)
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msgRepo = store.NewPgMessageRepository(pool)
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sessRepo = store.NewPgSessionRepository(pool)
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logger.Log.Infow("L3 PostgreSQL storage initialized", "driver", cfg.Storage.Persistence.Driver)
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} else {
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userRepo = store.NewMemUserRepository()
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logger.Log.Info("using in-memory user storage")
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}
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// L2: Redis（热数据分布式会话层）
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var rdb *redis.Client
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var redisMgr *session.RedisManager
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if cfg.Storage.Redis.Enabled {
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rdb = redis.NewClient(&redis.Options{
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Addr: cfg.Redis.Addr,
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Password: cfg.Redis.Password,
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DB: cfg.Redis.DB,
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})
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// 验证 Redis 连接
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if err := rdb.Ping(ctx).Err(); err != nil {
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logger.Log.Fatalw("failed to connect to redis", "error", err)
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}
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redisMgr = session.NewRedisManager(
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rdb,
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time.Duration(cfg.Session.TTL)*time.Minute,
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cfg.Session.MaxHistory,
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)
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// 包装 userRepo 为带 Redis 缓存的版本（refresh token 二级缓存）
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userRepo = store.NewCachedUserRepository(userRepo, rdb, time.Duration(cfg.Auth.RefreshTTL)*time.Minute)
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logger.Log.Infow("L2 Redis storage initialized",
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"addr", cfg.Redis.Addr,
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"db", cfg.Redis.DB,
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"cached_user_repo", true)
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}
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// 初始化 Session Manager（三级存储）
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var sessionMgr session.Manager
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if cfg.Storage.Redis.Enabled {
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// L1 + L2 + L3 三级存储
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var tieredOpts []session.TieredOption
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if sessRepo != nil {
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tieredOpts = append(tieredOpts, session.WithTieredSessionRepository(sessRepo))
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}
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if msgRepo != nil {
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tieredOpts = append(tieredOpts, session.WithTieredMessageRepository(msgRepo))
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}
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tieredMgr := session.NewTieredManager(
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time.Duration(cfg.Session.TTL)*time.Minute,
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cfg.Session.MaxHistory,
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redisMgr,
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tieredOpts...,
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)
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sessionMgr = tieredMgr
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defer tieredMgr.Stop()
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logger.Log.Info("session manager initialized with L1+L2+L3 tiered storage")
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} else {
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// L1 + L3 两级存储（无 Redis）
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var sessionOpts []session.Option
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if msgRepo != nil {
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sessionOpts = append(sessionOpts, session.WithMessageRepository(msgRepo))
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}
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if sessRepo != nil {
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sessionOpts = append(sessionOpts, session.WithSessionRepository(sessRepo))
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}
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memMgr := session.NewMemoryManager(
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time.Duration(cfg.Session.TTL)*time.Minute,
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cfg.Session.MaxHistory,
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sessionOpts...,
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)
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sessionMgr = memMgr
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defer memMgr.Stop()
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logger.Log.Info("session manager initialized with L1+L3 storage (Redis disabled)")
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}
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// 初始化 AI 服务
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logger.Log.Infow("initializing AI services",
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"stt.provider", cfg.AI.STT.Provider,
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"stt.model", cfg.AI.STT.Model,
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"llm.provider", cfg.AI.LLM.Provider,
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"llm.model", cfg.AI.LLM.Model,
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"tts.provider", cfg.AI.TTS.Provider,
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"tts.model", cfg.AI.TTS.Model,
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"tts.voice", cfg.AI.TTS.Voice,
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)
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var sttService stt.Service
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switch strings.ToLower(cfg.AI.STT.Provider) {
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case "mimo", "xiaomi":
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sttService = stt.NewMiMoService(cfg.AI.STT.APIKey, cfg.AI.STT.Model, cfg.AI.STT.Endpoint, cfg.AI.STT.Timeout, logger.Log)
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logger.Log.Infow("STT service initialized", "provider", "mimo", "model", cfg.AI.STT.Model, "endpoint", cfg.AI.STT.Endpoint)
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default:
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sttService = stt.NewDeepgramService(cfg.AI.STT.APIKey, cfg.AI.STT.Model, cfg.AI.STT.Endpoint, cfg.AI.STT.Timeout, logger.Log)
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logger.Log.Infow("STT service initialized", "provider", "deepgram", "model", cfg.AI.STT.Model)
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}
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var ttsService tts.Service
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switch strings.ToLower(cfg.AI.TTS.Provider) {
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case "mimo", "xiaomi":
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ttsService = tts.NewMiMoService(cfg.AI.TTS.APIKey, cfg.AI.TTS.Model, cfg.AI.TTS.Voice, cfg.AI.TTS.Endpoint, cfg.AI.TTS.Timeout, cfg.AI.TTS.HTTPClientTimeout, logger.Log)
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logger.Log.Infow("TTS service initialized", "provider", "mimo", "model", cfg.AI.TTS.Model, "voice", cfg.AI.TTS.Voice, "endpoint", cfg.AI.TTS.Endpoint)
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default:
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ttsService = tts.NewOpenAIService(cfg.AI.TTS.APIKey, cfg.AI.TTS.Model, cfg.AI.TTS.Voice, cfg.AI.TTS.Endpoint, cfg.AI.TTS.Speed, cfg.AI.TTS.Timeout, cfg.AI.TTS.HTTPClientTimeout, logger.Log)
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logger.Log.Infow("TTS service initialized", "provider", "openai", "model", cfg.AI.TTS.Model, "voice", cfg.AI.TTS.Voice, "speed", cfg.AI.TTS.Speed)
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}
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// 初始化 Eino Graph + Orchestrator
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pipelineGraph, err := eino.NewPipelineGraph(ctx, cfg, sttService, ttsService, sessionMgr)
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if err != nil {
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logger.Log.Fatalw("failed to create eino pipeline graph", "error", err)
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}
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orch := eino.NewEinoOrchestrator(pipelineGraph, sessionMgr, cfg.AI.LLM.Model)
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// 初始化认证服务
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tokenMgr := auth.NewTokenManager(
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cfg.Auth.JWTSecret,
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time.Duration(cfg.Auth.AccessTTL)*time.Minute,
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time.Duration(cfg.Auth.RefreshTTL)*time.Minute,
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)
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authService := auth.NewAuthService(tokenMgr, userRepo)
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// 初始化限流器
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var limiter ratelimit.Limiter
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if cfg.RateLimit.Enabled {
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if rdb != nil {
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// 多实例：使用 Redis 令牌桶
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limiter = ratelimit.NewRedisLimiter(rdb, cfg.RateLimit)
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logger.Log.Info("rate limiter initialized with Redis backend")
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} else {
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// 单实例：使用内存令牌桶
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limiter = ratelimit.NewMemoryLimiter(cfg.RateLimit)
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logger.Log.Info("rate limiter initialized with in-memory backend")
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}
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defer limiter.Stop()
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} else {
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logger.Log.Info("rate limiter disabled")
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}
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// Gin 模式
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if cfg.App.Env == "prod" {
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gin.SetMode(gin.ReleaseMode)
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}
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r := gin.New()
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r.Use(gin.Recovery())
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// REST API
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apiGroup := r.Group("/api")
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{
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apiGroup.GET("/health", healthHandler(sessionMgr, cfg))
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}
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// Session REST 端点
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sessionHandler := api.NewSessionHandler(sessionMgr)
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sessionHandler.RegisterRoutes(apiGroup)
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// Auth REST 端点
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authHandler := api.NewAuthHandler(authService, tokenMgr)
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authHandler.RegisterRoutes(apiGroup, limiter)
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// Conversation REST 端点
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convHandler := api.NewConversationHandler(sessionMgr, tokenMgr, msgRepo)
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convHandler.RegisterRoutes(apiGroup)
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// WebSocket
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r.GET("/ws", ws.ServeWS(sessionMgr, orch, cfg, tokenMgr, limiter))
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// HTTP Server
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srv := &http.Server{
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Addr: cfg.Server.Addr(),
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Handler: r,
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ReadTimeout: time.Duration(cfg.Server.ReadTimeout) * time.Second,
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WriteTimeout: time.Duration(cfg.Server.WriteTimeout) * time.Second,
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}
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// Graceful shutdown
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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go func() {
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logger.Log.Infow("server starting", "addr", srv.Addr)
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if err := srv.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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logger.Log.Fatalw("listen failed", "error", err)
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}
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}()
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<-ctx.Done()
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logger.Log.Info("shutting down...")
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shutdownCtx, cancel := context.WithTimeout(context.Background(), time.Duration(cfg.Server.ShutdownTimeout)*time.Second)
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defer cancel()
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if err := srv.Shutdown(shutdownCtx); err != nil {
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logger.Log.Errorw("shutdown error", "error", err)
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}
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logger.Log.Info("server stopped")
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}
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// healthHandler 健康检查。
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func healthHandler(sessionMgr session.Manager, cfg *config.Config) gin.HandlerFunc {
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return func(c *gin.Context) {
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version := Version
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if version == "" {
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version = cfg.App.Version
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}
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c.JSON(200, gin.H{
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"status": "ok",
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"version": version,
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"uptime_seconds": int(time.Since(startTime).Seconds()),
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"active_sessions": sessionMgr.ActiveCount(),
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})
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}
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}
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