feat: add hook system, QR code login, and layered cache

- Implement extensible hook system for content moderation with builtin and AI-powered moderation hooks - Add QR code login feature with SSE for real-time status updates and scan/confirm/cancel workflow - Introduce layered cache with local LRU + Redis backend for improved read performance - Refactor post and comment services to use hook-based moderation instead of direct AI service calls - Add local cache configuration options (size, buckets, ttl)
2026-03-20 12:23:28 +08:00
parent bdfcbdadea
commit 98f0c9f2b6
23 changed files with 2726 additions and 76 deletions
--- a/cmd/server/wire.go
+++ b/cmd/server/wire.go
@@ -45,6 +45,7 @@ func ProvideRouter(
 	adminGroupHandler *handler.AdminGroupHandler,
 	adminDashboardHandler *handler.AdminDashboardHandler,
 	adminLogHandler *handler.AdminLogHandler,
+	qrcodeHandler *handler.QRCodeHandler,
 	logService *service.LogService,
 	activityService service.UserActivityService,
 	casbinService service.CasbinService,
@@ -71,6 +72,7 @@ func ProvideRouter(
 		adminGroupHandler,
 		adminDashboardHandler,
 		adminLogHandler,
+		qrcodeHandler,
 		logService,
 		activityService,
 		casbinService,
--- a/cmd/server/wire_gen.go
+++ b/cmd/server/wire_gen.go
@@ -46,9 +46,10 @@ func InitializeApp() (*App, error) {
 	openaiClient := wire.ProvideOpenAIClient(config)
 	postAIService := wire.ProvidePostAIService(openaiClient)
 	transactionManager := wire.ProvideTransactionManager(db)
-	postService := wire.ProvidePostService(postRepository, systemMessageService, gorseClient, postAIService, cache, transactionManager)
+	manager := wire.ProvideHookManager()
+	postService := wire.ProvidePostService(postRepository, systemMessageService, gorseClient, postAIService, cache, transactionManager, manager)
 	commentRepository := repository.NewCommentRepository(db)
-	commentService := wire.ProvideCommentService(commentRepository, postRepository, systemMessageService, gorseClient, postAIService, cache)
+	commentService := wire.ProvideCommentService(commentRepository, postRepository, systemMessageService, gorseClient, postAIService, cache, manager)
 	operationLogRepository := repository.NewOperationLogRepository(db)
 	loginLogRepository := repository.NewLoginLogRepository(db)
 	dataChangeLogRepository := repository.NewDataChangeLogRepository(db)
@@ -108,7 +109,9 @@ func InitializeApp() (*App, error) {
 	adminDashboardService := wire.ProvideAdminDashboardService(db, userRepository, postRepository, commentRepository, groupRepository, userActivityRepository)
 	adminDashboardHandler := handler.NewAdminDashboardHandler(adminDashboardService)
 	adminLogHandler := handler.NewAdminLogHandler(operationLogService, loginLogService, dataChangeLogService)
-	router := ProvideRouter(userHandler, postHandler, commentHandler, messageHandler, notificationHandler, uploadHandler, jwtService, pushHandler, systemMessageHandler, groupHandler, stickerHandler, gorseHandler, voteHandler, scheduleHandler, roleHandler, adminUserHandler, adminPostHandler, adminCommentHandler, adminGroupHandler, adminDashboardHandler, adminLogHandler, logService, userActivityService, casbinService)
+	qrCodeLoginService := wire.ProvideQRCodeLoginService(client, hub, jwtService, userService, userActivityService, logService)
+	qrCodeHandler := handler.NewQRCodeHandler(qrCodeLoginService)
+	router := ProvideRouter(userHandler, postHandler, commentHandler, messageHandler, notificationHandler, uploadHandler, jwtService, pushHandler, systemMessageHandler, groupHandler, stickerHandler, gorseHandler, voteHandler, scheduleHandler, roleHandler, adminUserHandler, adminPostHandler, adminCommentHandler, adminGroupHandler, adminDashboardHandler, adminLogHandler, qrCodeHandler, logService, userActivityService, casbinService)
 	app := NewApp(config, db, router, pushService, server, logger)
 	return app, nil
 }
@@ -138,6 +141,7 @@ func ProvideRouter(
 	adminGroupHandler *handler.AdminGroupHandler,
 	adminDashboardHandler *handler.AdminDashboardHandler,
 	adminLogHandler *handler.AdminLogHandler,
+	qrcodeHandler *handler.QRCodeHandler,
 	logService *service.LogService,
 	activityService service.UserActivityService,
 	casbinService service.CasbinService,
@@ -164,6 +168,7 @@ func ProvideRouter(
 		adminGroupHandler,
 		adminDashboardHandler,
 		adminLogHandler,
+		qrcodeHandler,
 		logService,
 		activityService,
 		casbinService,
--- a/go.mod
+++ b/go.mod
@@ -6,6 +6,7 @@ require (
 	github.com/alicebob/miniredis/v2 v2.37.0
 	github.com/casbin/casbin/v3 v3.10.0
 	github.com/casbin/gorm-adapter/v3 v3.41.0
+	github.com/cespare/xxhash/v2 v2.3.0
 	github.com/disintegration/imaging v1.6.2
 	github.com/gin-gonic/gin v1.12.0
 	github.com/golang-jwt/jwt/v5 v5.3.1
@@ -33,7 +34,6 @@ require (
 	github.com/bytedance/sonic v1.15.0 // indirect
 	github.com/bytedance/sonic/loader v0.5.0 // indirect
 	github.com/casbin/govaluate v1.10.0 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cloudwego/base64x v0.1.6 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
--- a/go.sum
+++ b/go.sum
@@ -118,6 +118,8 @@ github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
+github.com/google/subcommands v1.2.0 h1:vWQspBTo2nEqTUFita5/KeEWlUL8kQObDFbub/EN9oE=
+github.com/google/subcommands v1.2.0/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk=
 github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
--- a/internal/cache/cache.go
+++ b/internal/cache/cache.go
@@ -4,11 +4,14 @@ import (
 	"cmp"
 	"context"
 	"encoding/json"
+	"errors"
 	"math/rand"
 	"sync"
 	"time"
 )

+var ErrKeyNotFound = errors.New("key not found")
+
 // Cache 缓存接口
 type Cache interface {
 	// Set 设置缓存值，支持TTL
--- a/internal/cache/layered_cache.go
+++ b/internal/cache/layered_cache.go
@@ -0,0 +1,470 @@
+package cache
+
+import (
+	"context"
+	"encoding/json"
+	"strconv"
+	"sync"
+	"time"
+
+	"go.uber.org/zap"
+
+	redisPkg "carrot_bbs/internal/pkg/redis"
+)
+
+type LayeredCache struct {
+	local     *LRUStriped
+	redis     *RedisCache
+	mu        sync.RWMutex
+	stats     CacheStats
+	enabled   bool
+	keyPrefix string
+}
+
+type CacheStats struct {
+	LocalHits   int64
+	RedisHits   int64
+	Misses      int64
+	Sets        int64
+	Invalidates int64
+}
+
+type LayeredCacheOptions struct {
+	LocalSize       int
+	LocalBuckets    int
+	LocalDefaultTTL time.Duration
+	KeyPrefix       string
+	Enabled         bool
+}
+
+func NewLayeredCache(redisClient *redisPkg.Client, opts *LayeredCacheOptions) *LayeredCache {
+	if opts == nil {
+		opts = &LayeredCacheOptions{
+			LocalSize:       10000,
+			LocalBuckets:    0,
+			LocalDefaultTTL: 5 * time.Minute,
+			KeyPrefix:       "",
+			Enabled:         true,
+		}
+	}
+
+	if opts.LocalSize <= 0 {
+		opts.LocalSize = 10000
+	}
+	if opts.LocalDefaultTTL <= 0 {
+		opts.LocalDefaultTTL = 5 * time.Minute
+	}
+
+	localCache := NewLRUStriped(&LRUStripedOptions{
+		Size:          opts.LocalSize,
+		DefaultExpiry: opts.LocalDefaultTTL,
+		Buckets:       opts.LocalBuckets,
+		Name:          "layered_local",
+	})
+
+	var redisCache *RedisCache
+	if redisClient != nil {
+		redisCache = NewRedisCache(redisClient)
+	}
+
+	return &LayeredCache{
+		local:     localCache,
+		redis:     redisCache,
+		enabled:   opts.Enabled,
+		keyPrefix: opts.KeyPrefix,
+	}
+}
+
+func (c *LayeredCache) Set(key string, value any, ttl time.Duration) {
+	if !c.enabled {
+		return
+	}
+
+	c.mu.Lock()
+	c.stats.Sets++
+	c.mu.Unlock()
+
+	c.local.Set(key, value, ttl)
+
+	if c.redis != nil {
+		c.redis.Set(key, value, ttl)
+	}
+}
+
+func (c *LayeredCache) Get(key string) (any, bool) {
+	if !c.enabled {
+		return nil, false
+	}
+
+	if val, ok := c.local.Get(key); ok {
+		c.mu.Lock()
+		c.stats.LocalHits++
+		c.mu.Unlock()
+		return val, true
+	}
+
+	if c.redis != nil {
+		if val, ok := c.redis.Get(key); ok {
+			c.mu.Lock()
+			c.stats.RedisHits++
+			c.mu.Unlock()
+
+			if ttl := c.getLocalTTL(); ttl > 0 {
+				c.local.Set(key, val, ttl)
+			}
+			return val, true
+		}
+	}
+
+	c.mu.Lock()
+	c.stats.Misses++
+	c.mu.Unlock()
+	return nil, false
+}
+
+func (c *LayeredCache) getLocalTTL() time.Duration {
+	return 30 * time.Second
+}
+
+func (c *LayeredCache) Delete(key string) {
+	if !c.enabled {
+		return
+	}
+
+	c.mu.Lock()
+	c.stats.Invalidates++
+	c.mu.Unlock()
+
+	c.local.Delete(key)
+	if c.redis != nil {
+		c.redis.Delete(key)
+	}
+}
+
+func (c *LayeredCache) DeleteByPrefix(prefix string) {
+	if !c.enabled {
+		return
+	}
+
+	c.mu.Lock()
+	c.stats.Invalidates++
+	c.mu.Unlock()
+
+	c.local.DeleteByPrefix(prefix)
+	if c.redis != nil {
+		c.redis.DeleteByPrefix(prefix)
+	}
+}
+
+func (c *LayeredCache) Clear() {
+	c.local.Clear()
+	if c.redis != nil {
+		c.redis.Clear()
+	}
+	c.mu.Lock()
+	c.stats = CacheStats{}
+	c.mu.Unlock()
+}
+
+func (c *LayeredCache) Exists(key string) bool {
+	if !c.enabled {
+		return false
+	}
+
+	if c.local.Exists(key) {
+		return true
+	}
+
+	if c.redis != nil {
+		return c.redis.Exists(key)
+	}
+
+	return false
+}
+
+func (c *LayeredCache) Increment(key string) int64 {
+	if !c.enabled {
+		return 0
+	}
+
+	if c.redis != nil {
+		val := c.redis.Increment(key)
+		c.local.Delete(key)
+		return val
+	}
+
+	return c.local.Increment(key)
+}
+
+func (c *LayeredCache) IncrementBy(key string, value int64) int64 {
+	if !c.enabled {
+		return 0
+	}
+
+	if c.redis != nil {
+		val := c.redis.IncrementBy(key, value)
+		c.local.Delete(key)
+		return val
+	}
+
+	return c.local.IncrementBy(key, value)
+}
+
+func (c *LayeredCache) GetStats() CacheStats {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+	return c.stats
+}
+
+func (c *LayeredCache) GetHitRate() float64 {
+	c.mu.RLock()
+	defer c.mu.RUnlock()
+
+	total := c.stats.LocalHits + c.stats.RedisHits + c.stats.Misses
+	if total == 0 {
+		return 0
+	}
+	return float64(c.stats.LocalHits+c.stats.RedisHits) / float64(total)
+}
+
+func (c *LayeredCache) HSet(ctx context.Context, key string, field string, value any) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	c.local.Delete(key)
+	return c.redis.HSet(ctx, key, field, value)
+}
+
+func (c *LayeredCache) HMSet(ctx context.Context, key string, values map[string]any) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	c.local.Delete(key)
+	return c.redis.HMSet(ctx, key, values)
+}
+
+func (c *LayeredCache) HGet(ctx context.Context, key string, field string) (string, error) {
+	if !c.enabled || c.redis == nil {
+		return "", ErrKeyNotFound
+	}
+	return c.redis.HGet(ctx, key, field)
+}
+
+func (c *LayeredCache) HMGet(ctx context.Context, key string, fields ...string) ([]any, error) {
+	if !c.enabled || c.redis == nil {
+		return nil, ErrKeyNotFound
+	}
+	return c.redis.HMGet(ctx, key, fields...)
+}
+
+func (c *LayeredCache) HGetAll(ctx context.Context, key string) (map[string]string, error) {
+	if !c.enabled || c.redis == nil {
+		return nil, ErrKeyNotFound
+	}
+	return c.redis.HGetAll(ctx, key)
+}
+
+func (c *LayeredCache) HDel(ctx context.Context, key string, fields ...string) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	c.local.Delete(key)
+	return c.redis.HDel(ctx, key, fields...)
+}
+
+func (c *LayeredCache) ZAdd(ctx context.Context, key string, score float64, member string) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	c.local.Delete(key)
+	return c.redis.ZAdd(ctx, key, score, member)
+}
+
+func (c *LayeredCache) ZRangeByScore(ctx context.Context, key string, min, max string, offset, count int64) ([]string, error) {
+	if !c.enabled || c.redis == nil {
+		return nil, ErrKeyNotFound
+	}
+	return c.redis.ZRangeByScore(ctx, key, min, max, offset, count)
+}
+
+func (c *LayeredCache) ZRevRangeByScore(ctx context.Context, key string, max, min string, offset, count int64) ([]string, error) {
+	if !c.enabled || c.redis == nil {
+		return nil, ErrKeyNotFound
+	}
+	return c.redis.ZRevRangeByScore(ctx, key, max, min, offset, count)
+}
+
+func (c *LayeredCache) ZRem(ctx context.Context, key string, members ...any) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	c.local.Delete(key)
+	return c.redis.ZRem(ctx, key, members...)
+}
+
+func (c *LayeredCache) ZCard(ctx context.Context, key string) (int64, error) {
+	if !c.enabled || c.redis == nil {
+		return 0, ErrKeyNotFound
+	}
+	return c.redis.ZCard(ctx, key)
+}
+
+func (c *LayeredCache) Incr(ctx context.Context, key string) (int64, error) {
+	if !c.enabled || c.redis == nil {
+		return 0, ErrKeyNotFound
+	}
+	c.local.Delete(key)
+	return c.redis.Incr(ctx, key)
+}
+
+func (c *LayeredCache) Expire(ctx context.Context, key string, ttl time.Duration) error {
+	if !c.enabled || c.redis == nil {
+		return nil
+	}
+	return c.redis.Expire(ctx, key, ttl)
+}
+
+func (c *LayeredCache) SetLocalOnly(key string, value any, ttl time.Duration) {
+	if !c.enabled {
+		return
+	}
+	c.local.Set(key, value, ttl)
+}
+
+func (c *LayeredCache) GetLocalOnly(key string) (any, bool) {
+	if !c.enabled {
+		return nil, false
+	}
+	return c.local.Get(key)
+}
+
+func (c *LayeredCache) SetRedisOnly(key string, value any, ttl time.Duration) {
+	if !c.enabled || c.redis == nil {
+		return
+	}
+	c.redis.Set(key, value, ttl)
+}
+
+func (c *LayeredCache) GetRedisOnly(key string) (any, bool) {
+	if !c.enabled || c.redis == nil {
+		return nil, false
+	}
+	return c.redis.Get(key)
+}
+
+func (c *LayeredCache) GetRedisClient() *redisPkg.Client {
+	if c.redis == nil {
+		return nil
+	}
+	return c.redis.GetRedisClient()
+}
+
+func GetTypedLayered[T any](c *LayeredCache, key string) (T, bool) {
+	var zero T
+	if !c.enabled {
+		return zero, false
+	}
+
+	raw, ok := c.Get(key)
+	if !ok {
+		return zero, false
+	}
+
+	if typed, ok := raw.(T); ok {
+		return typed, true
+	}
+
+	if str, ok := raw.(string); ok {
+		var out T
+		if err := json.Unmarshal([]byte(str), &out); err != nil {
+			return zero, false
+		}
+		return out, true
+	}
+
+	if data, err := json.Marshal(raw); err == nil {
+		var out T
+		if err := json.Unmarshal(data, &out); err != nil {
+			return zero, false
+		}
+		return out, true
+	}
+
+	return zero, false
+}
+
+func GetOrLoadLayered[T any](
+	c *LayeredCache,
+	key string,
+	ttl time.Duration,
+	loader func() (T, error),
+) (T, error) {
+	if cached, ok := GetTypedLayered[T](c, key); ok {
+		return cached, nil
+	}
+
+	loaded, err := loader()
+	if err != nil {
+		var zero T
+		return zero, err
+	}
+
+	c.Set(key, loaded, ttl)
+	return loaded, nil
+}
+
+func (c *LayeredCache) InvalidateUserCache(userID uint) {
+	c.DeleteByPrefix(cacheKeyPrefixUser + ":")
+	c.Delete(buildUserDetailKey(userID))
+}
+
+func (c *LayeredCache) InvalidatePostCache(postID uint) {
+	c.Delete(buildPostDetailKey(postID))
+	c.DeleteByPrefix(cacheKeyPrefixPostList)
+}
+
+func (c *LayeredCache) InvalidateGroupCache(groupID uint) {
+	c.Delete(buildGroupDetailKey(groupID))
+	c.Delete(buildGroupMembersKey(groupID))
+}
+
+func (c *LayeredCache) InvalidateAllLists() {
+	c.DeleteByPrefix(cacheKeyPrefixPostList)
+	c.DeleteByPrefix(cacheKeyPrefixUserActivity)
+}
+
+var (
+	cacheKeyPrefixUser         = "user"
+	cacheKeyPrefixPostList     = "post_list"
+	cacheKeyPrefixUserActivity = "user_activity"
+)
+
+func buildUserDetailKey(userID uint) string {
+	return "user:detail:" + strconv.FormatUint(uint64(userID), 10)
+}
+
+func buildPostDetailKey(postID uint) string {
+	return "post:detail:" + strconv.FormatUint(uint64(postID), 10)
+}
+
+func buildGroupDetailKey(groupID uint) string {
+	return "group:detail:" + strconv.FormatUint(uint64(groupID), 10)
+}
+
+func buildGroupMembersKey(groupID uint) string {
+	return "group:members:" + strconv.FormatUint(uint64(groupID), 10)
+}
+
+var _ Cache = (*LayeredCache)(nil)
+
+func (c *LayeredCache) logStats() {
+	stats := c.GetStats()
+	zap.L().Debug("LayeredCache stats",
+		zap.Int64("local_hits", stats.LocalHits),
+		zap.Int64("redis_hits", stats.RedisHits),
+		zap.Int64("misses", stats.Misses),
+		zap.Int64("sets", stats.Sets),
+		zap.Int64("invalidates", stats.Invalidates),
+		zap.Float64("hit_rate", c.GetHitRate()),
+	)
+}
--- a/internal/cache/lru.go
+++ b/internal/cache/lru.go
@@ -0,0 +1,205 @@
+package cache
+
+import (
+	"container/list"
+	"encoding/json"
+	"sync"
+	"time"
+)
+
+type LRUOptions struct {
+	Size          int
+	DefaultExpiry time.Duration
+	Name          string
+}
+
+type LRU struct {
+	lock              sync.RWMutex
+	size              int
+	len               int
+	currentGeneration int64
+	evictList         *list.List
+	items             map[string]*list.Element
+	defaultExpiry     time.Duration
+	name              string
+}
+
+type lruEntry struct {
+	key        string
+	value      []byte
+	expires    time.Time
+	generation int64
+}
+
+func NewLRU(opts *LRUOptions) *LRU {
+	if opts.Size <= 0 {
+		opts.Size = 1000
+	}
+	return &LRU{
+		name:          opts.Name,
+		size:          opts.Size,
+		evictList:     list.New(),
+		items:         make(map[string]*list.Element, opts.Size),
+		defaultExpiry: opts.DefaultExpiry,
+	}
+}
+
+func (l *LRU) Set(key string, value any, ttl time.Duration) {
+	if ttl <= 0 {
+		ttl = l.defaultExpiry
+	}
+	l.set(key, value, ttl)
+}
+
+func (l *LRU) set(key string, value any, ttl time.Duration) {
+	var expires time.Time
+	if ttl > 0 {
+		expires = time.Now().Add(ttl)
+	}
+
+	buf, err := json.Marshal(value)
+	if err != nil {
+		return
+	}
+
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	if ent, ok := l.items[key]; ok {
+		l.evictList.MoveToFront(ent)
+		e := ent.Value.(*lruEntry)
+		e.value = buf
+		e.expires = expires
+		if e.generation != l.currentGeneration {
+			e.generation = l.currentGeneration
+			l.len++
+		}
+		return
+	}
+
+	ent := &lruEntry{key, buf, expires, l.currentGeneration}
+	entry := l.evictList.PushFront(ent)
+	l.items[key] = entry
+	l.len++
+
+	if l.evictList.Len() > l.size {
+		l.removeElement(l.evictList.Back())
+	}
+}
+
+func (l *LRU) Get(key string) (any, bool) {
+	val, err := l.getItem(key)
+	if err != nil {
+		return nil, false
+	}
+	return val, true
+}
+
+func (l *LRU) getItem(key string) ([]byte, error) {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	ent, ok := l.items[key]
+	if !ok {
+		return nil, ErrKeyNotFound
+	}
+	e := ent.Value.(*lruEntry)
+	if e.generation != l.currentGeneration || (!e.expires.IsZero() && time.Now().After(e.expires)) {
+		l.removeElement(ent)
+		return nil, ErrKeyNotFound
+	}
+	l.evictList.MoveToFront(ent)
+	return e.value, nil
+}
+
+func (l *LRU) Delete(key string) {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	if ent, ok := l.items[key]; ok {
+		l.removeElement(ent)
+	}
+}
+
+func (l *LRU) DeleteByPrefix(prefix string) {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	for key, ent := range l.items {
+		if len(key) >= len(prefix) && key[:len(prefix)] == prefix {
+			l.removeElement(ent)
+		}
+	}
+}
+
+func (l *LRU) Clear() {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	l.len = 0
+	l.currentGeneration++
+}
+
+func (l *LRU) Exists(key string) bool {
+	l.lock.RLock()
+	defer l.lock.RUnlock()
+
+	ent, ok := l.items[key]
+	if !ok {
+		return false
+	}
+	e := ent.Value.(*lruEntry)
+	return e.generation == l.currentGeneration && (e.expires.IsZero() || !time.Now().After(e.expires))
+}
+
+func (l *LRU) Increment(key string) int64 {
+	return l.IncrementBy(key, 1)
+}
+
+func (l *LRU) IncrementBy(key string, value int64) int64 {
+	l.lock.Lock()
+	defer l.lock.Unlock()
+
+	var current int64
+	if ent, ok := l.items[key]; ok {
+		e := ent.Value.(*lruEntry)
+		if e.generation == l.currentGeneration && (e.expires.IsZero() || !time.Now().After(e.expires)) {
+			json.Unmarshal(e.value, &current)
+		}
+	}
+
+	current += value
+	buf, _ := json.Marshal(current)
+
+	if ent, ok := l.items[key]; ok {
+		e := ent.Value.(*lruEntry)
+		e.value = buf
+		l.evictList.MoveToFront(ent)
+	} else {
+		ent := &lruEntry{key, buf, time.Time{}, l.currentGeneration}
+		entry := l.evictList.PushFront(ent)
+		l.items[key] = entry
+		l.len++
+	}
+
+	return current
+}
+
+func (l *LRU) Len() int {
+	l.lock.RLock()
+	defer l.lock.RUnlock()
+	return l.len
+}
+
+func (l *LRU) Name() string {
+	return l.name
+}
+
+func (l *LRU) removeElement(e *list.Element) {
+	l.evictList.Remove(e)
+	kv := e.Value.(*lruEntry)
+	if kv.generation == l.currentGeneration {
+		l.len--
+	}
+	delete(l.items, kv.key)
+}
--- a/internal/cache/lru_striped.go
+++ b/internal/cache/lru_striped.go
@@ -0,0 +1,167 @@
+package cache
+
+import (
+	"math"
+	"runtime"
+	"time"
+
+	"github.com/cespare/xxhash/v2"
+)
+
+type LRUStriped struct {
+	buckets []*LRU
+	name    string
+}
+
+type LRUStripedOptions struct {
+	Size          int
+	DefaultExpiry time.Duration
+	Name          string
+	Buckets       int
+}
+
+func NewLRUStriped(opts *LRUStripedOptions) *LRUStriped {
+	if opts.Buckets <= 0 {
+		opts.Buckets = runtime.NumCPU()
+	}
+	if opts.Buckets < 4 {
+		opts.Buckets = 4
+	}
+	if opts.Size < opts.Buckets {
+		opts.Size = opts.Buckets * 100
+	}
+
+	opts.Size += int(math.Ceil(float64(opts.Size) * 10.0 / 100.0))
+	bucketSize := (opts.Size / opts.Buckets) + (opts.Size % opts.Buckets)
+
+	buckets := make([]*LRU, opts.Buckets)
+	for i := 0; i < opts.Buckets; i++ {
+		buckets[i] = NewLRU(&LRUOptions{
+			Size:          bucketSize,
+			DefaultExpiry: opts.DefaultExpiry,
+			Name:          opts.Name,
+		})
+	}
+
+	return &LRUStriped{
+		buckets: buckets,
+		name:    opts.Name,
+	}
+}
+
+func (l *LRUStriped) hashKey(key string) uint64 {
+	return xxhash.Sum64String(key)
+}
+
+func (l *LRUStriped) keyBucket(key string) *LRU {
+	return l.buckets[l.hashKey(key)%uint64(len(l.buckets))]
+}
+
+func (l *LRUStriped) Set(key string, value any, ttl time.Duration) {
+	l.keyBucket(key).Set(key, value, ttl)
+}
+
+func (l *LRUStriped) Get(key string) (any, bool) {
+	return l.keyBucket(key).Get(key)
+}
+
+func (l *LRUStriped) Delete(key string) {
+	l.keyBucket(key).Delete(key)
+}
+
+func (l *LRUStriped) DeleteByPrefix(prefix string) {
+	for _, bucket := range l.buckets {
+		bucket.DeleteByPrefix(prefix)
+	}
+}
+
+func (l *LRUStriped) Clear() {
+	for _, bucket := range l.buckets {
+		bucket.Clear()
+	}
+}
+
+func (l *LRUStriped) Exists(key string) bool {
+	return l.keyBucket(key).Exists(key)
+}
+
+func (l *LRUStriped) Increment(key string) int64 {
+	return l.keyBucket(key).Increment(key)
+}
+
+func (l *LRUStriped) IncrementBy(key string, value int64) int64 {
+	return l.keyBucket(key).IncrementBy(key, value)
+}
+
+func (l *LRUStriped) Len() int {
+	var total int
+	for _, bucket := range l.buckets {
+		total += bucket.Len()
+	}
+	return total
+}
+
+func (l *LRUStriped) Name() string {
+	return l.name
+}
+
+func (l *LRUStriped) DeleteMulti(keys []string) error {
+	var err error
+	for _, key := range keys {
+		l.Delete(key)
+	}
+	return err
+}
+
+func (l *LRUStriped) GetMulti(keys []string, values []any) []error {
+	errs := make([]error, len(values))
+	for i, key := range keys {
+		if val, ok := l.Get(key); ok {
+			values[i] = val
+		} else {
+			errs[i] = ErrKeyNotFound
+		}
+	}
+	return errs
+}
+
+func (l *LRUStriped) SetMulti(items map[string]any, ttl time.Duration) error {
+	for key, value := range items {
+		l.Set(key, value, ttl)
+	}
+	return nil
+}
+
+func (l *LRUStriped) Keys() []string {
+	keys := make([]string, 0)
+	for _, bucket := range l.buckets {
+		bucket.lock.RLock()
+		for key, ent := range bucket.items {
+			e := ent.Value.(*lruEntry)
+			if e.generation == bucket.currentGeneration && (e.expires.IsZero() || !time.Now().After(e.expires)) {
+				keys = append(keys, key)
+			}
+		}
+		bucket.lock.RUnlock()
+	}
+	return keys
+}
+
+type LRUStripedInterface interface {
+	Set(key string, value any, ttl time.Duration)
+	Get(key string) (any, bool)
+	Delete(key string)
+	DeleteByPrefix(prefix string)
+	Clear()
+	Exists(key string) bool
+	Increment(key string) int64
+	IncrementBy(key string, value int64) int64
+	Len() int
+	Name() string
+	DeleteMulti(keys []string) error
+	GetMulti(keys []string, values []any) []error
+	SetMulti(items map[string]any, ttl time.Duration) error
+	Keys() []string
+}
+
+var _ LRUStripedInterface = (*LRUStriped)(nil)
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -72,6 +72,10 @@ func Load(configPath string) (*Config, error) {
 	viper.SetDefault("cache.modules.conversation_ttl", 60)
 	viper.SetDefault("cache.modules.unread_count_ttl", 30)
 	viper.SetDefault("cache.modules.group_members_ttl", 120)
+	viper.SetDefault("cache.local.enabled", true)
+	viper.SetDefault("cache.local.size", 10000)
+	viper.SetDefault("cache.local.buckets", 0)
+	viper.SetDefault("cache.local.default_ttl", 300)
 	viper.SetDefault("jwt.secret", "your-jwt-secret-key-change-in-production")
 	viper.SetDefault("jwt.access_token_expire", 86400)
 	viper.SetDefault("jwt.refresh_token_expire", 604800)
--- a/internal/config/redis.go
+++ b/internal/config/redis.go
@@ -17,13 +17,22 @@ type RedisConfig struct {

 // CacheConfig 缓存配置
 type CacheConfig struct {
-	Enabled        bool           `mapstructure:"enabled"`
-	KeyPrefix      string         `mapstructure:"key_prefix"`
-	DefaultTTL     int            `mapstructure:"default_ttl"`
-	NullTTL        int            `mapstructure:"null_ttl"`
-	JitterRatio    float64        `mapstructure:"jitter_ratio"`
-	DisableFlushDB bool           `mapstructure:"disable_flushdb"`
-	Modules        CacheModuleTTL `mapstructure:"modules"`
+	Enabled        bool             `mapstructure:"enabled"`
+	KeyPrefix      string           `mapstructure:"key_prefix"`
+	DefaultTTL     int              `mapstructure:"default_ttl"`
+	NullTTL        int              `mapstructure:"null_ttl"`
+	JitterRatio    float64          `mapstructure:"jitter_ratio"`
+	DisableFlushDB bool             `mapstructure:"disable_flushdb"`
+	Modules        CacheModuleTTL   `mapstructure:"modules"`
+	Local          LocalCacheConfig `mapstructure:"local"`
+}
+
+// LocalCacheConfig 本地缓存配置
+type LocalCacheConfig struct {
+	Enabled    bool `mapstructure:"enabled"`
+	Size       int  `mapstructure:"size"`
+	Buckets    int  `mapstructure:"buckets"`
+	DefaultTTL int  `mapstructure:"default_ttl"`
 }

 // CacheModuleTTL 缓存模块 TTL 配置
--- a/internal/handler/qrcode_handler.go
+++ b/internal/handler/qrcode_handler.go
@@ -0,0 +1,237 @@
+package handler
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"carrot_bbs/internal/pkg/response"
+	"carrot_bbs/internal/pkg/sse"
+	"carrot_bbs/internal/service"
+)
+
+// QRCodeHandler 二维码登录处理器
+type QRCodeHandler struct {
+	qrcodeService *service.QRCodeLoginService
+}
+
+// NewQRCodeHandler 创建二维码登录处理器
+func NewQRCodeHandler(qrcodeService *service.QRCodeLoginService) *QRCodeHandler {
+	return &QRCodeHandler{
+		qrcodeService: qrcodeService,
+	}
+}
+
+// GetQRCode 获取二维码
+// GET /api/v1/auth/qrcode
+func (h *QRCodeHandler) GetQRCode(c *gin.Context) {
+	session, err := h.qrcodeService.CreateSession(c.Request.Context())
+	if err != nil {
+		response.InternalServerError(c, "failed to create qrcode session")
+		return
+	}
+
+	// 生成二维码URL (deeplink格式)
+	qrcodeURL := fmt.Sprintf("carrotbbs://qrcode/login?session_id=%s", session.SessionID)
+
+	response.Success(c, gin.H{
+		"session_id": session.SessionID,
+		"qrcode_url": qrcodeURL,
+		"expires_in": 300, // 5分钟
+		"expires_at": session.ExpiresAt,
+	})
+}
+
+// SSEEvents SSE事件流
+// GET /api/v1/auth/qrcode/events?session_id=xxx
+func (h *QRCodeHandler) SSEEvents(c *gin.Context) {
+	sessionID := c.Query("session_id")
+	if sessionID == "" {
+		response.BadRequest(c, "session_id is required")
+		return
+	}
+
+	ch, cancel, replay := h.qrcodeService.GetSSEHub().Subscribe(sessionID, 0)
+	defer cancel()
+
+	w := c.Writer
+	flusher, ok := w.(http.Flusher)
+	if !ok {
+		response.InternalServerError(c, "streaming unsupported")
+		return
+	}
+
+	w.Header().Set("Content-Type", "text/event-stream")
+	w.Header().Set("Cache-Control", "no-cache")
+	w.Header().Set("Connection", "keep-alive")
+	w.Header().Set("X-Accel-Buffering", "no")
+	c.Status(http.StatusOK)
+	flusher.Flush()
+
+	writeEvent := func(ev sse.Event) bool {
+		data, err := sse.EncodeData(ev)
+		if err != nil {
+			return false
+		}
+		if _, err := fmt.Fprintf(w, "id: %d\nevent: %s\ndata: %s\n\n", ev.ID, ev.Event, data); err != nil {
+			return false
+		}
+		flusher.Flush()
+		return true
+	}
+
+	// 发送历史事件
+	for _, ev := range replay {
+		if !writeEvent(ev) {
+			return
+		}
+	}
+
+	// 心跳
+	heartbeat := time.NewTicker(25 * time.Second)
+	defer heartbeat.Stop()
+
+	for {
+		select {
+		case <-c.Request.Context().Done():
+			return
+		case ev, ok := <-ch:
+			if !ok || !writeEvent(ev) {
+				return
+			}
+		case <-heartbeat.C:
+			if _, err := fmt.Fprint(w, "event: heartbeat\ndata: {}\n\n"); err != nil {
+				return
+			}
+			flusher.Flush()
+		}
+	}
+}
+
+// Scan 扫描二维码
+// POST /api/v1/auth/qrcode/scan
+func (h *QRCodeHandler) Scan(c *gin.Context) {
+	userID := c.GetString("user_id")
+	if userID == "" {
+		response.Unauthorized(c, "")
+		return
+	}
+
+	type ScanRequest struct {
+		SessionID string `json:"session_id" binding:"required"`
+	}
+
+	var req ScanRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+
+	if err := h.qrcodeService.Scan(c.Request.Context(), req.SessionID, userID); err != nil {
+		if err.Error() == "qrcode already scanned" {
+			response.BadRequest(c, "qrcode already scanned by others")
+			return
+		}
+		if err.Error() == "session not found or expired" {
+			response.NotFound(c, "qrcode expired")
+			return
+		}
+		response.InternalServerError(c, "failed to scan qrcode")
+		return
+	}
+
+	// 获取用户信息返回
+	user, err := h.qrcodeService.GetUserService().GetUserByID(c.Request.Context(), userID)
+	if err != nil {
+		response.InternalServerError(c, "failed to get user info")
+		return
+	}
+
+	response.Success(c, gin.H{
+		"user": gin.H{
+			"id":       user.ID,
+			"nickname": user.Nickname,
+			"avatar":   user.Avatar,
+		},
+	})
+}
+
+// Confirm 确认登录
+// POST /api/v1/auth/qrcode/confirm
+func (h *QRCodeHandler) Confirm(c *gin.Context) {
+	userID := c.GetString("user_id")
+	if userID == "" {
+		response.Unauthorized(c, "")
+		return
+	}
+
+	type ConfirmRequest struct {
+		SessionID string `json:"session_id" binding:"required"`
+	}
+
+	var req ConfirmRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+
+	ip := c.ClientIP()
+	userAgent := c.GetHeader("User-Agent")
+
+	result, err := h.qrcodeService.Confirm(c.Request.Context(), req.SessionID, userID, ip, userAgent)
+	if err != nil {
+		if err.Error() == "unauthorized" {
+			response.Unauthorized(c, "not authorized to confirm this login")
+			return
+		}
+		if err.Error() == "session not found or expired" {
+			response.NotFound(c, "qrcode expired")
+			return
+		}
+		response.InternalServerError(c, "failed to confirm login")
+		return
+	}
+
+	response.Success(c, gin.H{
+		"success": true,
+		"user": gin.H{
+			"id":       result.User.ID,
+			"username": result.User.Username,
+			"nickname": result.User.Nickname,
+			"avatar":   result.User.Avatar,
+		},
+	})
+}
+
+// Cancel 取消登录
+// POST /api/v1/auth/qrcode/cancel
+func (h *QRCodeHandler) Cancel(c *gin.Context) {
+	userID := c.GetString("user_id")
+	if userID == "" {
+		response.Unauthorized(c, "")
+		return
+	}
+
+	type CancelRequest struct {
+		SessionID string `json:"session_id" binding:"required"`
+	}
+
+	var req CancelRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		response.BadRequest(c, err.Error())
+		return
+	}
+
+	if err := h.qrcodeService.Cancel(c.Request.Context(), req.SessionID, userID); err != nil {
+		if err.Error() == "unauthorized" {
+			response.Unauthorized(c, "not authorized to cancel this login")
+			return
+		}
+		response.InternalServerError(c, "failed to cancel login")
+		return
+	}
+
+	response.Success(c, gin.H{"success": true})
+}
--- a/internal/model/login_log.go
+++ b/internal/model/login_log.go
@@ -47,6 +47,7 @@ const (
 	LoginTypeSMS      LoginType = "sms"
 	LoginTypeEmail    LoginType = "email"
 	LoginTypeOAuth    LoginType = "oauth"
+	LoginTypeQRCode   LoginType = "qrcode"
 )

 // LoginMethod 登录方式
--- a/internal/pkg/hook/hook.go
+++ b/internal/pkg/hook/hook.go
@@ -0,0 +1,405 @@
+package hook
+
+import (
+	"context"
+	"sync"
+	"time"
+
+	"go.uber.org/zap"
+)
+
+type HookType string
+
+const (
+	HookPostCreated        HookType = "post.created"
+	HookPostUpdated        HookType = "post.updated"
+	HookPostDeleted        HookType = "post.deleted"
+	HookPostPreModerate    HookType = "post.pre_moderate"
+	HookPostModerated      HookType = "post.moderated"
+	HookCommentCreated     HookType = "comment.created"
+	HookCommentDeleted     HookType = "comment.deleted"
+	HookCommentPreModerate HookType = "comment.pre_moderate"
+	HookCommentModerated   HookType = "comment.moderated"
+	HookUserCreated        HookType = "user.created"
+	HookUserUpdated        HookType = "user.updated"
+	HookUserDeleted        HookType = "user.deleted"
+	HookUserLogin          HookType = "user.login"
+	HookUserLogout         HookType = "user.logout"
+	HookGroupCreated       HookType = "group.created"
+	HookGroupUpdated       HookType = "group.updated"
+	HookGroupDeleted       HookType = "group.deleted"
+	HookGroupJoined        HookType = "group.joined"
+	HookGroupLeft          HookType = "group.left"
+	HookMessageSent        HookType = "message.sent"
+	HookMessageRead        HookType = "message.read"
+	HookNotificationSent   HookType = "notification.sent"
+	HookVoteCreated        HookType = "vote.created"
+	HookVoteUpdated        HookType = "vote.updated"
+	HookFileUploaded       HookType = "file.uploaded"
+)
+
+type Priority int
+
+const (
+	PriorityLowest  Priority = 0
+	PriorityLow     Priority = 25
+	PriorityNormal  Priority = 50
+	PriorityHigh    Priority = 75
+	PriorityHighest Priority = 100
+)
+
+type HookContext struct {
+	Ctx      context.Context
+	HookType HookType
+	UserID   uint
+	Data     any
+	Metadata map[string]any
+}
+
+type HookFunc func(ctx *HookContext) error
+
+type Hook struct {
+	Name     string
+	HookType HookType
+	Func     HookFunc
+	Priority Priority
+	Async    bool
+	Timeout  time.Duration
+	Enabled  bool
+}
+
+type HookStats struct {
+	TotalCalls   int64
+	FailedCalls  int64
+	TotalTime    time.Duration
+	AverageTime  time.Duration
+	LastCalledAt time.Time
+}
+
+type hookEntry struct {
+	hook  *Hook
+	stats HookStats
+	mu    sync.Mutex
+}
+
+type Manager struct {
+	hooks     map[HookType][]*hookEntry
+	mu        sync.RWMutex
+	asyncPool chan struct{}
+	enabled   bool
+	metrics   *Metrics
+}
+
+type ManagerOptions struct {
+	MaxConcurrentAsync int
+	Enabled            bool
+}
+
+func NewManager(opts *ManagerOptions) *Manager {
+	if opts == nil {
+		opts = &ManagerOptions{
+			MaxConcurrentAsync: 100,
+			Enabled:            true,
+		}
+	}
+
+	if opts.MaxConcurrentAsync <= 0 {
+		opts.MaxConcurrentAsync = 100
+	}
+
+	return &Manager{
+		hooks:     make(map[HookType][]*hookEntry),
+		asyncPool: make(chan struct{}, opts.MaxConcurrentAsync),
+		enabled:   opts.Enabled,
+		metrics:   NewMetrics(),
+	}
+}
+
+func (m *Manager) Register(hook *Hook) {
+	if hook == nil || hook.Func == nil {
+		return
+	}
+
+	if hook.Priority == 0 {
+		hook.Priority = PriorityNormal
+	}
+	if hook.Timeout == 0 {
+		hook.Timeout = 30 * time.Second
+	}
+	hook.Enabled = true
+
+	entry := &hookEntry{
+		hook:  hook,
+		stats: HookStats{},
+	}
+
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	hooks := m.hooks[hook.HookType]
+	hooks = append(hooks, entry)
+
+	for i := len(hooks) - 1; i > 0; i-- {
+		if hooks[i].hook.Priority > hooks[i-1].hook.Priority {
+			hooks[i], hooks[i-1] = hooks[i-1], hooks[i]
+		} else {
+			break
+		}
+	}
+
+	m.hooks[hook.HookType] = hooks
+	zap.L().Debug("Hook registered",
+		zap.String("name", hook.Name),
+		zap.String("type", string(hook.HookType)),
+		zap.Int("priority", int(hook.Priority)),
+	)
+}
+
+func (m *Manager) RegisterFunc(hookType HookType, name string, fn HookFunc, opts ...HookOption) {
+	hook := &Hook{
+		Name:     name,
+		HookType: hookType,
+		Func:     fn,
+	}
+	for _, opt := range opts {
+		opt(hook)
+	}
+	m.Register(hook)
+}
+
+type HookOption func(*Hook)
+
+func WithPriority(p Priority) HookOption {
+	return func(h *Hook) {
+		h.Priority = p
+	}
+}
+
+func WithAsync() HookOption {
+	return func(h *Hook) {
+		h.Async = true
+	}
+}
+
+func WithTimeout(timeout time.Duration) HookOption {
+	return func(h *Hook) {
+		h.Timeout = timeout
+	}
+}
+
+func (m *Manager) Trigger(ctx context.Context, hookType HookType, userID uint, data any) error {
+	return m.TriggerWithMetadata(ctx, hookType, userID, data, nil)
+}
+
+func (m *Manager) TriggerWithMetadata(ctx context.Context, hookType HookType, userID uint, data any, metadata map[string]any) error {
+	if !m.enabled {
+		return nil
+	}
+
+	m.mu.RLock()
+	entries := m.hooks[hookType]
+	m.mu.RUnlock()
+
+	if len(entries) == 0 {
+		return nil
+	}
+
+	hookCtx := &HookContext{
+		Ctx:      ctx,
+		HookType: hookType,
+		UserID:   userID,
+		Data:     data,
+		Metadata: metadata,
+	}
+
+	var asyncHooks []*hookEntry
+
+	for _, entry := range entries {
+		if !entry.hook.Enabled {
+			continue
+		}
+
+		if entry.hook.Async {
+			asyncHooks = append(asyncHooks, entry)
+			continue
+		}
+
+		if err := m.executeHook(entry, hookCtx); err != nil {
+			zap.L().Error("Hook execution failed",
+				zap.String("name", entry.hook.Name),
+				zap.String("type", string(hookType)),
+				zap.Error(err),
+			)
+		}
+	}
+
+	for _, entry := range asyncHooks {
+		entry := entry
+		go func() {
+			select {
+			case m.asyncPool <- struct{}{}:
+				defer func() { <-m.asyncPool }()
+				if err := m.executeHook(entry, hookCtx); err != nil {
+					zap.L().Error("Async hook execution failed",
+						zap.String("name", entry.hook.Name),
+						zap.String("type", string(hookType)),
+						zap.Error(err),
+					)
+				}
+			default:
+				zap.L().Warn("Async hook pool full, skipping hook",
+					zap.String("name", entry.hook.Name),
+					zap.String("type", string(hookType)),
+				)
+			}
+		}()
+	}
+
+	return nil
+}
+
+func (m *Manager) executeHook(entry *hookEntry, ctx *HookContext) error {
+	start := time.Now()
+
+	var err error
+	if entry.hook.Timeout > 0 {
+		done := make(chan error, 1)
+		go func() {
+			defer func() {
+				if r := recover(); r != nil {
+					zap.L().Error("Hook panic recovered",
+						zap.String("name", entry.hook.Name),
+						zap.Any("panic", r),
+					)
+					done <- nil
+				}
+			}()
+			done <- entry.hook.Func(ctx)
+		}()
+
+		select {
+		case err = <-done:
+		case <-time.After(entry.hook.Timeout):
+			err = context.DeadlineExceeded
+			zap.L().Warn("Hook timeout",
+				zap.String("name", entry.hook.Name),
+				zap.Duration("timeout", entry.hook.Timeout),
+			)
+		}
+	} else {
+		err = entry.hook.Func(ctx)
+	}
+
+	duration := time.Since(start)
+
+	entry.mu.Lock()
+	entry.stats.TotalCalls++
+	entry.stats.TotalTime += duration
+	entry.stats.AverageTime = time.Duration(int64(entry.stats.TotalTime) / entry.stats.TotalCalls)
+	entry.stats.LastCalledAt = time.Now()
+	if err != nil {
+		entry.stats.FailedCalls++
+	}
+	entry.mu.Unlock()
+
+	m.metrics.RecordHookExecution(entry.hook.Name, entry.hook.HookType, duration, err == nil)
+
+	return err
+}
+
+func (m *Manager) Unregister(hookType HookType, name string) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	entries := m.hooks[hookType]
+	for i, entry := range entries {
+		if entry.hook.Name == name {
+			m.hooks[hookType] = append(entries[:i], entries[i+1:]...)
+			zap.L().Debug("Hook unregistered",
+				zap.String("name", name),
+				zap.String("type", string(hookType)),
+			)
+			break
+		}
+	}
+}
+
+func (m *Manager) Enable(hookType HookType, name string) {
+	m.mu.RLock()
+	entries := m.hooks[hookType]
+	m.mu.RUnlock()
+
+	for _, entry := range entries {
+		if entry.hook.Name == name {
+			entry.hook.Enabled = true
+			break
+		}
+	}
+}
+
+func (m *Manager) Disable(hookType HookType, name string) {
+	m.mu.RLock()
+	entries := m.hooks[hookType]
+	m.mu.RUnlock()
+
+	for _, entry := range entries {
+		if entry.hook.Name == name {
+			entry.hook.Enabled = false
+			break
+		}
+	}
+}
+
+func (m *Manager) GetStats(hookType HookType, name string) *HookStats {
+	m.mu.RLock()
+	entries := m.hooks[hookType]
+	m.mu.RUnlock()
+
+	for _, entry := range entries {
+		if entry.hook.Name == name {
+			entry.mu.Lock()
+			stats := entry.stats
+			entry.mu.Unlock()
+			return &stats
+		}
+	}
+	return nil
+}
+
+func (m *Manager) GetAllStats() map[HookType]map[string]HookStats {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+
+	result := make(map[HookType]map[string]HookStats)
+	for hookType, entries := range m.hooks {
+		result[hookType] = make(map[string]HookStats)
+		for _, entry := range entries {
+			entry.mu.Lock()
+			result[hookType][entry.hook.Name] = entry.stats
+			entry.mu.Unlock()
+		}
+	}
+	return result
+}
+
+func (m *Manager) GetMetrics() *Metrics {
+	return m.metrics
+}
+
+func (m *Manager) Clear(hookType HookType) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	delete(m.hooks, hookType)
+}
+
+func (m *Manager) ClearAll() {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.hooks = make(map[HookType][]*hookEntry)
+}
+
+func (m *Manager) SetEnabled(enabled bool) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.enabled = enabled
+}
--- a/internal/pkg/hook/metrics.go
+++ b/internal/pkg/hook/metrics.go
@@ -0,0 +1,122 @@
+package hook
+
+import (
+	"sync"
+	"sync/atomic"
+	"time"
+)
+
+type Metrics struct {
+	totalCalls  atomic.Int64
+	failedCalls atomic.Int64
+	totalTime   atomic.Int64
+	hookMetrics map[string]*hookMetric
+	mu          sync.RWMutex
+}
+
+type hookMetric struct {
+	calls      atomic.Int64
+	failures   atomic.Int64
+	totalTime  atomic.Int64
+	lastCalled atomic.Int64
+}
+
+func NewMetrics() *Metrics {
+	return &Metrics{
+		hookMetrics: make(map[string]*hookMetric),
+	}
+}
+
+func (m *Metrics) RecordHookExecution(name string, hookType HookType, duration time.Duration, success bool) {
+	m.totalCalls.Add(1)
+	m.totalTime.Add(int64(duration))
+
+	if !success {
+		m.failedCalls.Add(1)
+	}
+
+	key := string(hookType) + ":" + name
+
+	m.mu.Lock()
+	metric, ok := m.hookMetrics[key]
+	if !ok {
+		metric = &hookMetric{}
+		m.hookMetrics[key] = metric
+	}
+	m.mu.Unlock()
+
+	metric.calls.Add(1)
+	metric.totalTime.Add(int64(duration))
+	metric.lastCalled.Store(time.Now().Unix())
+
+	if !success {
+		metric.failures.Add(1)
+	}
+}
+
+type MetricSnapshot struct {
+	Name       string
+	Type       HookType
+	Calls      int64
+	Failures   int64
+	TotalTime  time.Duration
+	AvgTime    time.Duration
+	LastCalled time.Time
+}
+
+func (m *Metrics) GetTotalCalls() int64 {
+	return m.totalCalls.Load()
+}
+
+func (m *Metrics) GetFailedCalls() int64 {
+	return m.failedCalls.Load()
+}
+
+func (m *Metrics) GetTotalTime() time.Duration {
+	return time.Duration(m.totalTime.Load())
+}
+
+func (m *Metrics) GetHookMetrics() []MetricSnapshot {
+	m.mu.RLock()
+	defer m.mu.RUnlock()
+
+	var snapshots []MetricSnapshot
+	for key, metric := range m.hookMetrics {
+		calls := metric.calls.Load()
+		var avgTime time.Duration
+		if calls > 0 {
+			avgTime = time.Duration(metric.totalTime.Load() / calls)
+		}
+
+		hookType, name := parseKey(key)
+		snapshots = append(snapshots, MetricSnapshot{
+			Name:       name,
+			Type:       hookType,
+			Calls:      calls,
+			Failures:   metric.failures.Load(),
+			TotalTime:  time.Duration(metric.totalTime.Load()),
+			AvgTime:    avgTime,
+			LastCalled: time.Unix(metric.lastCalled.Load(), 0),
+		})
+	}
+	return snapshots
+}
+
+func parseKey(key string) (HookType, string) {
+	for i := 0; i < len(key); i++ {
+		if key[i] == ':' {
+			return HookType(key[:i]), key[i+1:]
+		}
+	}
+	return HookType(key), ""
+}
+
+func (m *Metrics) Reset() {
+	m.totalCalls.Store(0)
+	m.failedCalls.Store(0)
+	m.totalTime.Store(0)
+
+	m.mu.Lock()
+	m.hookMetrics = make(map[string]*hookMetric)
+	m.mu.Unlock()
+}
--- a/internal/pkg/hook/moderation_hooks.go
+++ b/internal/pkg/hook/moderation_hooks.go
@@ -0,0 +1,353 @@
+package hook
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"carrot_bbs/internal/repository"
+
+	"go.uber.org/zap"
+)
+
+type PostModerationHook struct {
+	name          string
+	postAIService PostAIService
+	postRepo      *repository.PostRepository
+	strictMode    bool
+}
+
+type PostAIService interface {
+	IsEnabled() bool
+	ModeratePost(ctx context.Context, title, content string, images []string) error
+	ModerateComment(ctx context.Context, content string, images []string) error
+}
+
+func NewPostModerationHook(postAIService PostAIService, postRepo *repository.PostRepository, strictMode bool) *PostModerationHook {
+	return &PostModerationHook{
+		name:          "moderation.post.ai",
+		postAIService: postAIService,
+		postRepo:      postRepo,
+		strictMode:    strictMode,
+	}
+}
+
+func (h *PostModerationHook) Register(manager *Manager) {
+	manager.Register(&Hook{
+		Name:     h.name,
+		HookType: HookPostPreModerate,
+		Priority: PriorityHighest,
+		Func:     h.Execute,
+		Async:    false, // 必须同步执行，因为调用方需要审核结果
+		Timeout:  30 * time.Second,
+	})
+}
+
+func (h *PostModerationHook) Execute(ctx *HookContext) error {
+	data, ok := ctx.Data.(*PostModerateHookData)
+	if !ok {
+		return nil
+	}
+
+	result, ok := ctx.Metadata["result"].(*ModerationResult)
+	if !ok || result == nil {
+		return nil
+	}
+
+	if h.postAIService == nil || !h.postAIService.IsEnabled() {
+		result.Approved = true
+		result.ReviewedBy = "system"
+		zap.L().Debug("AI moderation disabled, auto approve post",
+			zap.String("post_id", data.PostID),
+		)
+		return nil
+	}
+
+	err := h.postAIService.ModeratePost(ctx.Ctx, data.Title, data.Content, data.Images)
+	if err != nil {
+		if rejectErr, ok := err.(interface{ UserMessage() string }); ok {
+			result.Approved = false
+			result.RejectReason = rejectErr.UserMessage()
+			result.ReviewedBy = "ai"
+			zap.L().Info("Post rejected by AI moderation",
+				zap.String("post_id", data.PostID),
+				zap.String("reason", result.RejectReason),
+			)
+			return nil
+		}
+
+		if h.strictMode {
+			result.Approved = false
+			result.Error = err
+			result.ReviewedBy = "ai"
+			return nil
+		}
+
+		result.Approved = true
+		result.ReviewedBy = "system"
+		zap.L().Warn("AI moderation error, fallback approve",
+			zap.String("post_id", data.PostID),
+			zap.Error(err),
+		)
+		return nil
+	}
+
+	result.Approved = true
+	result.ReviewedBy = "ai"
+	zap.L().Debug("Post approved by AI moderation",
+		zap.String("post_id", data.PostID),
+	)
+	return nil
+}
+
+type CommentModerationHook struct {
+	name          string
+	postAIService PostAIService
+	commentRepo   *repository.CommentRepository
+	strictMode    bool
+}
+
+func NewCommentModerationHook(postAIService PostAIService, commentRepo *repository.CommentRepository, strictMode bool) *CommentModerationHook {
+	return &CommentModerationHook{
+		name:          "moderation.comment.ai",
+		postAIService: postAIService,
+		commentRepo:   commentRepo,
+		strictMode:    strictMode,
+	}
+}
+
+func (h *CommentModerationHook) Register(manager *Manager) {
+	manager.Register(&Hook{
+		Name:     h.name,
+		HookType: HookCommentPreModerate,
+		Priority: PriorityHighest,
+		Func:     h.Execute,
+		Async:    false, // 必须同步执行，因为调用方需要审核结果
+		Timeout:  30 * time.Second,
+	})
+}
+
+func (h *CommentModerationHook) Execute(ctx *HookContext) error {
+	data, ok := ctx.Data.(*CommentModerateHookData)
+	if !ok {
+		return nil
+	}
+
+	result, ok := ctx.Metadata["result"].(*ModerationResult)
+	if !ok || result == nil {
+		return nil
+	}
+
+	if h.postAIService == nil || !h.postAIService.IsEnabled() {
+		result.Approved = true
+		result.ReviewedBy = "system"
+		zap.L().Debug("AI moderation disabled, auto approve comment",
+			zap.String("comment_id", data.CommentID),
+		)
+		return nil
+	}
+
+	err := h.postAIService.ModerateComment(ctx.Ctx, data.Content, data.Images)
+	if err != nil {
+		if rejectErr, ok := err.(interface{ UserMessage() string }); ok {
+			result.Approved = false
+			result.RejectReason = rejectErr.UserMessage()
+			result.ReviewedBy = "ai"
+			zap.L().Info("Comment rejected by AI moderation",
+				zap.String("comment_id", data.CommentID),
+				zap.String("reason", result.RejectReason),
+			)
+			return nil
+		}
+
+		if h.strictMode {
+			result.Approved = false
+			result.Error = err
+			result.ReviewedBy = "ai"
+			return nil
+		}
+
+		result.Approved = true
+		result.ReviewedBy = "system"
+		zap.L().Warn("AI comment moderation error, fallback approve",
+			zap.String("comment_id", data.CommentID),
+			zap.Error(err),
+		)
+		return nil
+	}
+
+	result.Approved = true
+	result.ReviewedBy = "ai"
+	zap.L().Debug("Comment approved by AI moderation",
+		zap.String("comment_id", data.CommentID),
+	)
+	return nil
+}
+
+type SensitiveWordHook struct {
+	name       string
+	sensitive  SensitiveService
+	replaceStr string
+}
+
+type SensitiveService interface {
+	Check(ctx context.Context, text string) (bool, []string)
+	Replace(ctx context.Context, text string, repl string) string
+}
+
+func NewSensitiveWordHook(sensitive SensitiveService, replaceStr string) *SensitiveWordHook {
+	return &SensitiveWordHook{
+		name:       "moderation.sensitive_word",
+		sensitive:  sensitive,
+		replaceStr: replaceStr,
+	}
+}
+
+func (h *SensitiveWordHook) RegisterPostHook(manager *Manager) {
+	manager.Register(&Hook{
+		Name:     h.name + ".post",
+		HookType: HookPostPreModerate,
+		Priority: PriorityHigh,
+		Func:     h.executePost,
+		Async:    false,
+	})
+}
+
+func (h *SensitiveWordHook) RegisterCommentHook(manager *Manager) {
+	manager.Register(&Hook{
+		Name:     h.name + ".comment",
+		HookType: HookCommentPreModerate,
+		Priority: PriorityHigh,
+		Func:     h.executeComment,
+		Async:    false,
+	})
+}
+
+func (h *SensitiveWordHook) executePost(ctx *HookContext) error {
+	if h.sensitive == nil {
+		return nil
+	}
+
+	data, ok := ctx.Data.(*PostModerateHookData)
+	if !ok {
+		return nil
+	}
+
+	result, ok := ctx.Metadata["result"].(*ModerationResult)
+	if !ok || result == nil {
+		return nil
+	}
+
+	if result.RejectReason != "" {
+		return nil
+	}
+
+	hasSensitive, words := h.sensitive.Check(ctx.Ctx, data.Title+" "+data.Content)
+	if hasSensitive {
+		result.Approved = false
+		result.RejectReason = "内容包含敏感词: " + strings.Join(words, ", ")
+		result.ReviewedBy = "sensitive_word"
+		zap.L().Info("Post rejected by sensitive word filter",
+			zap.String("post_id", data.PostID),
+			zap.Strings("words", words),
+		)
+	}
+
+	return nil
+}
+
+func (h *SensitiveWordHook) executeComment(ctx *HookContext) error {
+	if h.sensitive == nil {
+		return nil
+	}
+
+	data, ok := ctx.Data.(*CommentModerateHookData)
+	if !ok {
+		return nil
+	}
+
+	result, ok := ctx.Metadata["result"].(*ModerationResult)
+	if !ok || result == nil {
+		return nil
+	}
+
+	if result.RejectReason != "" {
+		return nil
+	}
+
+	hasSensitive, words := h.sensitive.Check(ctx.Ctx, data.Content)
+	if hasSensitive {
+		result.Approved = false
+		result.RejectReason = "内容包含敏感词: " + strings.Join(words, ", ")
+		result.ReviewedBy = "sensitive_word"
+		zap.L().Info("Comment rejected by sensitive word filter",
+			zap.String("comment_id", data.CommentID),
+			zap.Strings("words", words),
+		)
+	}
+
+	return nil
+}
+
+type ModerationHooks struct {
+	postAIService    PostAIService
+	sensitiveService SensitiveService
+	postRepo         *repository.PostRepository
+	commentRepo      *repository.CommentRepository
+	strictMode       bool
+	replaceStr       string
+}
+
+func NewModerationHooks(
+	postAIService PostAIService,
+	sensitiveService SensitiveService,
+	postRepo *repository.PostRepository,
+	commentRepo *repository.CommentRepository,
+	strictMode bool,
+	replaceStr string,
+) *ModerationHooks {
+	return &ModerationHooks{
+		postAIService:    postAIService,
+		sensitiveService: sensitiveService,
+		postRepo:         postRepo,
+		commentRepo:      commentRepo,
+		strictMode:       strictMode,
+		replaceStr:       replaceStr,
+	}
+}
+
+func (m *ModerationHooks) RegisterAll(manager *Manager) {
+	postHook := NewPostModerationHook(m.postAIService, m.postRepo, m.strictMode)
+	postHook.Register(manager)
+
+	commentHook := NewCommentModerationHook(m.postAIService, m.commentRepo, m.strictMode)
+	commentHook.Register(manager)
+
+	if m.sensitiveService != nil {
+		sensitiveHook := NewSensitiveWordHook(m.sensitiveService, m.replaceStr)
+		sensitiveHook.RegisterPostHook(manager)
+		sensitiveHook.RegisterCommentHook(manager)
+	}
+
+	zap.L().Info("Registered moderation hooks",
+		zap.Bool("ai_enabled", m.postAIService != nil && m.postAIService.IsEnabled()),
+		zap.Bool("sensitive_enabled", m.sensitiveService != nil),
+		zap.Bool("strict_mode", m.strictMode),
+	)
+}
+
+func (m *ModerationHooks) ModeratePost(ctx context.Context, manager *Manager, data *PostModerateHookData) *ModerationResult {
+	result := &ModerationResult{}
+	manager.TriggerWithMetadata(ctx, HookPostPreModerate, data.AuthorID, data, map[string]any{
+		"result": result,
+	})
+	return result
+}
+
+func (m *ModerationHooks) ModerateComment(ctx context.Context, manager *Manager, data *CommentModerateHookData) *ModerationResult {
+	result := &ModerationResult{}
+	manager.TriggerWithMetadata(ctx, HookCommentPreModerate, data.AuthorID, data, map[string]any{
+		"result": result,
+	})
+	return result
+}
--- a/internal/pkg/hook/types.go
+++ b/internal/pkg/hook/types.go
@@ -0,0 +1,272 @@
+package hook
+
+import (
+	"context"
+
+	"go.uber.org/zap"
+)
+
+type PostHookData struct {
+	PostID      uint
+	Title       string
+	Content     string
+	AuthorID    uint
+	GroupID     *uint
+	IsPublished bool
+}
+
+type CommentHookData struct {
+	CommentID uint
+	PostID    uint
+	Content   string
+	AuthorID  uint
+	ParentID  *uint
+}
+
+type UserHookData struct {
+	UserID   uint
+	Username string
+	Email    string
+	Nickname string
+}
+
+type GroupHookData struct {
+	GroupID   uint
+	Name      string
+	CreatorID uint
+}
+
+type MessageHookData struct {
+	MessageID  uint
+	SenderID   uint
+	ReceiverID uint
+	Content    string
+}
+
+type NotificationHookData struct {
+	NotificationID uint
+	UserID         uint
+	Type           string
+	Title          string
+	Content        string
+}
+
+type VoteHookData struct {
+	VoteID   uint
+	PostID   uint
+	VoterID  uint
+	OptionID uint
+}
+
+type FileHookData struct {
+	FileID   uint
+	FileName string
+	FileSize int64
+	Uploader uint
+	MimeType string
+}
+
+type PostModerateHookData struct {
+	PostID   string
+	Title    string
+	Content  string
+	Images   []string
+	AuthorID uint
+	GroupID  *uint
+}
+
+type PostModeratedHookData struct {
+	PostID       string
+	AuthorID     uint
+	Approved     bool
+	RejectReason string
+	ReviewedBy   string
+}
+
+type CommentModerateHookData struct {
+	CommentID string
+	PostID    string
+	Content   string
+	Images    []string
+	AuthorID  uint
+	ParentID  *string
+}
+
+type CommentModeratedHookData struct {
+	CommentID    string
+	PostID       string
+	AuthorID     uint
+	Approved     bool
+	RejectReason string
+	ReviewedBy   string
+}
+
+type ModerationResult struct {
+	Approved     bool
+	RejectReason string
+	ReviewedBy   string
+	Error        error
+}
+
+type BuiltinHooks struct {
+	manager *Manager
+}
+
+func NewBuiltinHooks(manager *Manager) *BuiltinHooks {
+	return &BuiltinHooks{manager: manager}
+}
+
+func (b *BuiltinHooks) RegisterAll() {
+	b.registerLoggingHooks()
+	b.registerCacheInvalidationHooks()
+}
+
+func (b *BuiltinHooks) registerLoggingHooks() {
+	b.manager.RegisterFunc(HookPostCreated, "log.post.created", func(ctx *HookContext) error {
+		if data, ok := ctx.Data.(*PostHookData); ok {
+			zap.L().Info("Post created",
+				zap.Uint("post_id", data.PostID),
+				zap.Uint("author_id", data.AuthorID),
+				zap.String("title", data.Title),
+				zap.Uint("user_id", ctx.UserID),
+			)
+		}
+		return nil
+	}, WithAsync(), WithPriority(PriorityLowest))
+
+	b.manager.RegisterFunc(HookUserLogin, "log.user.login", func(ctx *HookContext) error {
+		if data, ok := ctx.Data.(*UserHookData); ok {
+			zap.L().Info("User logged in",
+				zap.Uint("user_id", data.UserID),
+				zap.String("username", data.Username),
+			)
+		}
+		return nil
+	}, WithAsync())
+
+	b.manager.RegisterFunc(HookCommentCreated, "log.comment.created", func(ctx *HookContext) error {
+		if data, ok := ctx.Data.(*CommentHookData); ok {
+			zap.L().Info("Comment created",
+				zap.Uint("comment_id", data.CommentID),
+				zap.Uint("post_id", data.PostID),
+				zap.Uint("author_id", data.AuthorID),
+			)
+		}
+		return nil
+	}, WithAsync(), WithPriority(PriorityLowest))
+}
+
+func (b *BuiltinHooks) registerCacheInvalidationHooks() {
+}
+
+type HookTriggerHelper struct {
+	manager *Manager
+}
+
+func NewHookTriggerHelper(manager *Manager) *HookTriggerHelper {
+	return &HookTriggerHelper{manager: manager}
+}
+
+func (h *HookTriggerHelper) TriggerPostCreated(ctx context.Context, userID uint, data *PostHookData) {
+	h.manager.Trigger(ctx, HookPostCreated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerPostUpdated(ctx context.Context, userID uint, data *PostHookData) {
+	h.manager.Trigger(ctx, HookPostUpdated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerPostDeleted(ctx context.Context, userID uint, postID uint) {
+	h.manager.Trigger(ctx, HookPostDeleted, userID, postID)
+}
+
+func (h *HookTriggerHelper) TriggerCommentCreated(ctx context.Context, userID uint, data *CommentHookData) {
+	h.manager.Trigger(ctx, HookCommentCreated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerCommentDeleted(ctx context.Context, userID uint, commentID uint) {
+	h.manager.Trigger(ctx, HookCommentDeleted, userID, commentID)
+}
+
+func (h *HookTriggerHelper) TriggerUserCreated(ctx context.Context, data *UserHookData) {
+	h.manager.Trigger(ctx, HookUserCreated, data.UserID, data)
+}
+
+func (h *HookTriggerHelper) TriggerUserUpdated(ctx context.Context, userID uint, data *UserHookData) {
+	h.manager.Trigger(ctx, HookUserUpdated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerUserDeleted(ctx context.Context, userID uint) {
+	h.manager.Trigger(ctx, HookUserDeleted, userID, userID)
+}
+
+func (h *HookTriggerHelper) TriggerUserLogin(ctx context.Context, userID uint, data *UserHookData) {
+	h.manager.Trigger(ctx, HookUserLogin, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerUserLogout(ctx context.Context, userID uint) {
+	h.manager.Trigger(ctx, HookUserLogout, userID, userID)
+}
+
+func (h *HookTriggerHelper) TriggerGroupCreated(ctx context.Context, userID uint, data *GroupHookData) {
+	h.manager.Trigger(ctx, HookGroupCreated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerGroupUpdated(ctx context.Context, userID uint, data *GroupHookData) {
+	h.manager.Trigger(ctx, HookGroupUpdated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerGroupDeleted(ctx context.Context, userID uint, groupID uint) {
+	h.manager.Trigger(ctx, HookGroupDeleted, userID, groupID)
+}
+
+func (h *HookTriggerHelper) TriggerGroupJoined(ctx context.Context, userID uint, groupID uint) {
+	h.manager.Trigger(ctx, HookGroupJoined, userID, groupID)
+}
+
+func (h *HookTriggerHelper) TriggerGroupLeft(ctx context.Context, userID uint, groupID uint) {
+	h.manager.Trigger(ctx, HookGroupLeft, userID, groupID)
+}
+
+func (h *HookTriggerHelper) TriggerMessageSent(ctx context.Context, userID uint, data *MessageHookData) {
+	h.manager.Trigger(ctx, HookMessageSent, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerMessageRead(ctx context.Context, userID uint, messageID uint) {
+	h.manager.Trigger(ctx, HookMessageRead, userID, messageID)
+}
+
+func (h *HookTriggerHelper) TriggerNotificationSent(ctx context.Context, userID uint, data *NotificationHookData) {
+	h.manager.Trigger(ctx, HookNotificationSent, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerVoteCreated(ctx context.Context, userID uint, data *VoteHookData) {
+	h.manager.Trigger(ctx, HookVoteCreated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerVoteUpdated(ctx context.Context, userID uint, data *VoteHookData) {
+	h.manager.Trigger(ctx, HookVoteUpdated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerFileUploaded(ctx context.Context, userID uint, data *FileHookData) {
+	h.manager.Trigger(ctx, HookFileUploaded, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerPostPreModerate(ctx context.Context, userID uint, data *PostModerateHookData, result *ModerationResult) {
+	h.manager.TriggerWithMetadata(ctx, HookPostPreModerate, userID, data, map[string]any{
+		"result": result,
+	})
+}
+
+func (h *HookTriggerHelper) TriggerPostModerated(ctx context.Context, userID uint, data *PostModeratedHookData) {
+	h.manager.Trigger(ctx, HookPostModerated, userID, data)
+}
+
+func (h *HookTriggerHelper) TriggerCommentPreModerate(ctx context.Context, userID uint, data *CommentModerateHookData, result *ModerationResult) {
+	h.manager.TriggerWithMetadata(ctx, HookCommentPreModerate, userID, data, map[string]any{
+		"result": result,
+	})
+}
+
+func (h *HookTriggerHelper) TriggerCommentModerated(ctx context.Context, userID uint, data *CommentModeratedHookData) {
+	h.manager.Trigger(ctx, HookCommentModerated, userID, data)
+}
--- a/internal/router/router.go
+++ b/internal/router/router.go
@@ -32,6 +32,7 @@ type Router struct {
 	adminGroupHandler     *handler.AdminGroupHandler
 	adminDashboardHandler *handler.AdminDashboardHandler
 	adminLogHandler       *handler.AdminLogHandler
+	qrcodeHandler         *handler.QRCodeHandler
 	logService            *service.LogService
 	jwtService            *service.JWTService
 	casbinService         service.CasbinService
@@ -60,6 +61,7 @@ func New(
 	adminGroupHandler *handler.AdminGroupHandler,
 	adminDashboardHandler *handler.AdminDashboardHandler,
 	adminLogHandler *handler.AdminLogHandler,
+	qrcodeHandler *handler.QRCodeHandler,
 	logService *service.LogService,
 	activityService service.UserActivityService,
 	casbinService service.CasbinService,
@@ -91,6 +93,7 @@ func New(
 		adminGroupHandler:     adminGroupHandler,
 		adminDashboardHandler: adminDashboardHandler,
 		adminLogHandler:       adminLogHandler,
+		qrcodeHandler:         qrcodeHandler,
 		logService:            logService,
 		jwtService:            jwtService,
 		casbinService:         casbinService,
@@ -183,6 +186,24 @@ func (r *Router) setupRoutes() {
 			users.GET("/:id/favorites", middleware.OptionalAuth(r.jwtService), r.postHandler.GetFavorites)
 		}

+		// 二维码登录（公开）
+		if r.qrcodeHandler != nil {
+			qrcode := v1.Group("/auth/qrcode")
+			{
+				qrcode.GET("", r.qrcodeHandler.GetQRCode)
+				qrcode.GET("/events", r.qrcodeHandler.SSEEvents)
+			}
+
+			// 二维码操作（需认证）
+			qrcodeAuth := v1.Group("/auth/qrcode")
+			qrcodeAuth.Use(authMiddleware)
+			{
+				qrcodeAuth.POST("/scan", r.qrcodeHandler.Scan)
+				qrcodeAuth.POST("/confirm", r.qrcodeHandler.Confirm)
+				qrcodeAuth.POST("/cancel", r.qrcodeHandler.Cancel)
+			}
+		}
+
 		// 认证路由（公开）
 		authPublic := v1.Group("/auth")
 		{
--- a/internal/service/comment_service.go
+++ b/internal/service/comment_service.go
@@ -2,19 +2,18 @@ package service

 import (
 	"context"
-	"errors"
 	"fmt"
 	"strings"

 	"carrot_bbs/internal/cache"
 	"carrot_bbs/internal/model"
 	"carrot_bbs/internal/pkg/gorse"
+	"carrot_bbs/internal/pkg/hook"
 	"carrot_bbs/internal/repository"

 	"go.uber.org/zap"
 )

-// CommentService 评论服务
 type CommentService struct {
 	commentRepo          *repository.CommentRepository
 	postRepo             *repository.PostRepository
@@ -23,10 +22,10 @@ type CommentService struct {
 	gorseClient          gorse.Client
 	postAIService        *PostAIService
 	logService           *LogService
+	hookManager          *hook.Manager
 }

-// NewCommentService 创建评论服务
-func NewCommentService(commentRepo *repository.CommentRepository, postRepo *repository.PostRepository, systemMessageService SystemMessageService, gorseClient gorse.Client, postAIService *PostAIService, cacheBackend cache.Cache) *CommentService {
+func NewCommentService(commentRepo *repository.CommentRepository, postRepo *repository.PostRepository, systemMessageService SystemMessageService, gorseClient gorse.Client, postAIService *PostAIService, cacheBackend cache.Cache, hookManager *hook.Manager) *CommentService {
 	return &CommentService{
 		commentRepo:          commentRepo,
 		postRepo:             postRepo,
@@ -35,6 +34,7 @@ func NewCommentService(commentRepo *repository.CommentRepository, postRepo *repo
 		gorseClient:          gorseClient,
 		postAIService:        postAIService,
 		logService:           nil,
+		hookManager:          hookManager,
 	}
 }

@@ -113,10 +113,9 @@ func (s *CommentService) reviewCommentAsync(
 	parentUserID string,
 	postOwnerID string,
 ) {
-	// 未启用AI时，直接通过审核并发送后续通知
-	if s.postAIService == nil || !s.postAIService.IsEnabled() {
+	if s.hookManager == nil {
 		if err := s.commentRepo.UpdateModerationStatus(commentID, model.CommentStatusPublished); err != nil {
-			zap.L().Warn("Failed to publish comment without AI moderation",
+			zap.L().Warn("Failed to publish comment without hook manager",
 				zap.Error(err),
 			)
 			return
@@ -132,40 +131,38 @@ func (s *CommentService) reviewCommentAsync(
 		return
 	}

-	err := s.postAIService.ModerateComment(context.Background(), content, imageURLs)
-	if err != nil {
-		var rejectedErr *CommentModerationRejectedError
-		if errors.As(err, &rejectedErr) {
-			if delErr := s.commentRepo.Delete(commentID); delErr != nil {
-				zap.L().Warn("Failed to delete rejected comment",
-					zap.String("commentID", commentID),
-					zap.Error(delErr),
-				)
-			}
-			s.notifyCommentModerationRejected(userID, rejectedErr.Reason)
-			return
-		}
+	var authorID uint
+	fmt.Sscanf(userID, "%d", &authorID)

-		// 审核服务异常时降级放行，避免评论长期pending
-		if updateErr := s.commentRepo.UpdateModerationStatus(commentID, model.CommentStatusPublished); updateErr != nil {
-			zap.L().Warn("Failed to publish comment after moderation error",
+	result := &hook.ModerationResult{}
+	s.hookManager.TriggerWithMetadata(context.Background(), hook.HookCommentPreModerate, authorID, &hook.CommentModerateHookData{
+		CommentID: commentID,
+		PostID:    postID,
+		Content:   content,
+		Images:    imageURLs,
+		AuthorID:  authorID,
+		ParentID:  parentID,
+	}, map[string]interface{}{
+		"result": result,
+	})
+
+	s.hookManager.Trigger(context.Background(), hook.HookCommentModerated, authorID, &hook.CommentModeratedHookData{
+		CommentID:    commentID,
+		PostID:       postID,
+		AuthorID:     authorID,
+		Approved:     result.Approved,
+		RejectReason: result.RejectReason,
+		ReviewedBy:   result.ReviewedBy,
+	})
+
+	if !result.Approved {
+		if delErr := s.commentRepo.Delete(commentID); delErr != nil {
+			zap.L().Warn("Failed to delete rejected comment",
 				zap.String("commentID", commentID),
-				zap.Error(updateErr),
-			)
-			return
-		}
-		if statsErr := s.applyCommentPublishedStats(commentID); statsErr != nil {
-			zap.L().Warn("Failed to apply published stats for comment",
-				zap.String("commentID", commentID),
-				zap.Error(statsErr),
+				zap.Error(delErr),
 			)
 		}
-		s.invalidatePostCaches(postID)
-		zap.L().Warn("Comment moderation failed, fallback publish comment",
-			zap.String("commentID", commentID),
-			zap.Error(err),
-		)
-		s.afterCommentPublished(userID, postID, commentID, parentID, parentUserID, postOwnerID)
+		s.notifyCommentModerationRejected(userID, result.RejectReason)
 		return
 	}

--- a/internal/service/post_service.go
+++ b/internal/service/post_service.go
@@ -2,7 +2,6 @@ package service

 import (
 	"context"
-	"errors"
 	"fmt"
 	"log"
 	"math/rand"
@@ -12,6 +11,7 @@ import (
 	"carrot_bbs/internal/cache"
 	"carrot_bbs/internal/model"
 	"carrot_bbs/internal/pkg/gorse"
+	"carrot_bbs/internal/pkg/hook"
 	"carrot_bbs/internal/repository"
 )

@@ -73,10 +73,10 @@ type postServiceImpl struct {
 	postAIService        *PostAIService
 	txManager            repository.TransactionManager
 	logService           *LogService
+	hookManager          *hook.Manager
 }

-// NewPostService 创建帖子服务
-func NewPostService(postRepo *repository.PostRepository, systemMessageService SystemMessageService, gorseClient gorse.Client, postAIService *PostAIService, cacheBackend cache.Cache, txManager repository.TransactionManager) PostService {
+func NewPostService(postRepo *repository.PostRepository, systemMessageService SystemMessageService, gorseClient gorse.Client, postAIService *PostAIService, cacheBackend cache.Cache, txManager repository.TransactionManager, hookManager *hook.Manager) PostService {
 	return &postServiceImpl{
 		postRepo:             postRepo,
 		systemMessageService: systemMessageService,
@@ -85,6 +85,7 @@ func NewPostService(postRepo *repository.PostRepository, systemMessageService Sy
 		postAIService:        postAIService,
 		txManager:            txManager,
 		logService:           nil,
+		hookManager:          hookManager,
 	}
 }

@@ -147,40 +148,48 @@ func (s *postServiceImpl) reviewPostAsync(postID, userID, title, content string,
 		}
 	}()

-	// 未启用AI时，直接发布
-	if s.postAIService == nil || !s.postAIService.IsEnabled() {
+	if s.hookManager == nil {
 		if err := s.updateModerationStatusWithRetry(postID, model.PostStatusPublished, "", "system"); err != nil {
-			log.Printf("[WARN] Failed to publish post without AI moderation: %v", err)
+			log.Printf("[WARN] Failed to publish post without hook manager: %v", err)
 		} else {
 			s.invalidatePostCaches(postID)
 		}
 		return
 	}

-	err := s.postAIService.ModeratePost(context.Background(), title, content, images)
-	if err != nil {
-		var rejectedErr *PostModerationRejectedError
-		if errors.As(err, &rejectedErr) {
-			if updateErr := s.updateModerationStatusWithRetry(postID, model.PostStatusRejected, rejectedErr.UserMessage(), "ai"); updateErr != nil {
-				log.Printf("[WARN] Failed to reject post %s: %v", postID, updateErr)
-			} else {
-				s.invalidatePostCaches(postID)
-			}
-			s.notifyModerationRejected(userID, rejectedErr.Reason)
-			return
-		}
+	var authorID uint
+	fmt.Sscanf(userID, "%d", &authorID)

-		// 规则审核不可用时，降级为发布，避免长时间pending
-		if updateErr := s.updateModerationStatusWithRetry(postID, model.PostStatusPublished, "", "system"); updateErr != nil {
-			log.Printf("[WARN] Failed to publish post %s after moderation error: %v", postID, updateErr)
+	result := &hook.ModerationResult{}
+	s.hookManager.TriggerWithMetadata(context.Background(), hook.HookPostPreModerate, authorID, &hook.PostModerateHookData{
+		PostID:   postID,
+		Title:    title,
+		Content:  content,
+		Images:   images,
+		AuthorID: authorID,
+	}, map[string]interface{}{
+		"result": result,
+	})
+
+	s.hookManager.Trigger(context.Background(), hook.HookPostModerated, authorID, &hook.PostModeratedHookData{
+		PostID:       postID,
+		AuthorID:     authorID,
+		Approved:     result.Approved,
+		RejectReason: result.RejectReason,
+		ReviewedBy:   result.ReviewedBy,
+	})
+
+	if !result.Approved {
+		if updateErr := s.updateModerationStatusWithRetry(postID, model.PostStatusRejected, result.RejectReason, result.ReviewedBy); updateErr != nil {
+			log.Printf("[WARN] Failed to reject post %s: %v", postID, updateErr)
 		} else {
 			s.invalidatePostCaches(postID)
 		}
-		log.Printf("[WARN] Post moderation failed, fallback publish post=%s err=%v", postID, err)
+		s.notifyModerationRejected(userID, result.RejectReason)
 		return
 	}

-	if err := s.updateModerationStatusWithRetry(postID, model.PostStatusPublished, "", "ai"); err != nil {
+	if err := s.updateModerationStatusWithRetry(postID, model.PostStatusPublished, "", result.ReviewedBy); err != nil {
 		log.Printf("[WARN] Failed to publish post %s: %v", postID, err)
 		return
 	}
--- a/internal/service/qrcode_login_service.go
+++ b/internal/service/qrcode_login_service.go
@@ -0,0 +1,291 @@
+package service
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+
+	"carrot_bbs/internal/model"
+	"carrot_bbs/internal/pkg/redis"
+	"carrot_bbs/internal/pkg/sse"
+)
+
+// Lua 脚本：原子性地检查状态并更新为 scanned
+const scanScript = `
+	local key = KEYS[1]
+	local status = redis.call('HGET', key, 'status')
+	if status == 'pending' then
+		redis.call('HMSET', key, 'status', 'scanned', 'user_id', ARGV[1])
+		return 1
+	elseif status == 'scanned' then
+		return 2
+	else
+		return 0
+	end
+`
+
+const (
+	qrcodeSessionPrefix = "qrcode:session:"
+	qrcodeSessionTTL    = 5 * time.Minute
+)
+
+// QRCodeStatus 二维码状态
+type QRCodeStatus string
+
+const (
+	QRCodeStatusPending   QRCodeStatus = "pending"
+	QRCodeStatusScanned   QRCodeStatus = "scanned"
+	QRCodeStatusConfirmed QRCodeStatus = "confirmed"
+	QRCodeStatusCancelled QRCodeStatus = "cancelled"
+	QRCodeStatusExpired   QRCodeStatus = "expired"
+)
+
+// QRCodeSession 二维码会话
+type QRCodeSession struct {
+	SessionID string       `json:"session_id"`
+	Status    QRCodeStatus `json:"status"`
+	UserID    string       `json:"user_id"`
+	CreatedAt int64        `json:"created_at"`
+	ExpiresAt int64        `json:"expires_at"`
+}
+
+// QRCodeLoginService 二维码登录服务
+type QRCodeLoginService struct {
+	redis           *redis.Client
+	sseHub          *sse.Hub
+	jwtService      *JWTService
+	userService     UserService
+	activityService UserActivityService
+	logService      *LogService
+}
+
+// NewQRCodeLoginService 创建二维码登录服务
+func NewQRCodeLoginService(redis *redis.Client, sseHub *sse.Hub, jwtService *JWTService, userService UserService, activityService UserActivityService, logService *LogService) *QRCodeLoginService {
+	return &QRCodeLoginService{
+		redis:           redis,
+		sseHub:          sseHub,
+		jwtService:      jwtService,
+		userService:     userService,
+		activityService: activityService,
+		logService:      logService,
+	}
+}
+
+// CreateSession 创建二维码会话
+func (s *QRCodeLoginService) CreateSession(ctx context.Context) (*QRCodeSession, error) {
+	sessionID := uuid.New().String()
+	now := time.Now()
+	expiresAt := now.Add(qrcodeSessionTTL)
+
+	session := &QRCodeSession{
+		SessionID: sessionID,
+		Status:    QRCodeStatusPending,
+		CreatedAt: now.Unix(),
+		ExpiresAt: expiresAt.Unix(),
+	}
+
+	key := qrcodeSessionPrefix + sessionID
+	data := map[string]interface{}{
+		"status":     string(session.Status),
+		"user_id":    "",
+		"created_at": session.CreatedAt,
+		"expires_at": session.ExpiresAt,
+	}
+
+	if err := s.redis.HMSet(ctx, key, data); err != nil {
+		return nil, fmt.Errorf("failed to create session: %w", err)
+	}
+
+	if _, err := s.redis.Expire(ctx, key, qrcodeSessionTTL); err != nil {
+		return nil, fmt.Errorf("failed to set session ttl: %w", err)
+	}
+
+	return session, nil
+}
+
+// GetSession 获取会话
+func (s *QRCodeLoginService) GetSession(ctx context.Context, sessionID string) (*QRCodeSession, error) {
+	key := qrcodeSessionPrefix + sessionID
+	data, err := s.redis.HGetAll(ctx, key)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get session: %w", err)
+	}
+
+	if len(data) == 0 {
+		return nil, fmt.Errorf("session not found or expired")
+	}
+
+	session := &QRCodeSession{
+		SessionID: sessionID,
+		Status:    QRCodeStatus(data["status"]),
+		UserID:    data["user_id"],
+	}
+
+	// 解析时间戳
+	if v := data["created_at"]; v != "" {
+		fmt.Sscanf(v, "%d", &session.CreatedAt)
+	}
+	if v := data["expires_at"]; v != "" {
+		fmt.Sscanf(v, "%d", &session.ExpiresAt)
+	}
+
+	// 检查是否过期
+	if time.Now().Unix() > session.ExpiresAt {
+		session.Status = QRCodeStatusExpired
+	}
+
+	return session, nil
+}
+
+// Scan 扫描二维码
+func (s *QRCodeLoginService) Scan(ctx context.Context, sessionID, userID string) error {
+	key := qrcodeSessionPrefix + sessionID
+
+	// 使用 Lua 脚本实现原子性检查和更新，避免竞态条件
+	result, err := s.redis.GetClient().Eval(ctx, scanScript, []string{key}, userID).Int()
+	if err != nil {
+		return fmt.Errorf("failed to scan: %w", err)
+	}
+
+	switch result {
+	case 0:
+		return fmt.Errorf("session not found or expired")
+	case 2:
+		return fmt.Errorf("qrcode already scanned")
+	}
+
+	// 获取用户信息用于推送
+	user, err := s.userService.GetUserByID(ctx, userID)
+	if err != nil {
+		return fmt.Errorf("failed to get user info: %w", err)
+	}
+
+	// 推送扫码事件
+	payload := map[string]any{
+		"user": map[string]any{
+			"id":       user.ID,
+			"nickname": user.Nickname,
+			"avatar":   user.Avatar,
+		},
+	}
+	s.sseHub.PublishToUser(sessionID, "scanned", payload)
+
+	return nil
+}
+
+// Confirm 确认登录
+func (s *QRCodeLoginService) Confirm(ctx context.Context, sessionID, userID string, ip, userAgent string) (*LoginResponse, error) {
+	session, err := s.GetSession(ctx, sessionID)
+	if err != nil {
+		return nil, err
+	}
+
+	if session.Status != QRCodeStatusScanned {
+		return nil, fmt.Errorf("invalid session status")
+	}
+
+	if session.UserID != userID {
+		return nil, fmt.Errorf("unauthorized")
+	}
+
+	// 获取用户信息
+	user, err := s.userService.GetUserByID(ctx, userID)
+	if err != nil {
+		return nil, fmt.Errorf("user not found: %w", err)
+	}
+
+	// 复用JWT生成逻辑
+	accessToken, err := s.jwtService.GenerateAccessToken(user.ID, user.Username)
+	if err != nil {
+		return nil, fmt.Errorf("failed to generate access token: %w", err)
+	}
+
+	refreshToken, err := s.jwtService.GenerateRefreshToken(user.ID, user.Username)
+	if err != nil {
+		return nil, fmt.Errorf("failed to generate refresh token: %w", err)
+	}
+
+	// 更新状态
+	key := qrcodeSessionPrefix + sessionID
+	if err := s.redis.HSet(ctx, key, "status", string(QRCodeStatusConfirmed)); err != nil {
+		return nil, fmt.Errorf("failed to update status: %w", err)
+	}
+
+	// 复用活跃记录
+	if s.activityService != nil {
+		go func() {
+			s.activityService.RecordUserActive(context.Background(), userID, model.LoginTypeLogin, ip, userAgent)
+		}()
+	}
+
+	// 复用登录日志
+	if s.logService != nil {
+		go func() {
+			s.logService.LoginLog.RecordLogin(&model.LoginLog{
+				UserID:    user.ID,
+				UserName:  user.Username,
+				NickName:  user.Nickname,
+				LoginType: string(model.LoginTypeQRCode),
+				Event:     string(model.LoginEventLogin),
+				IP:        ip,
+				UserAgent: userAgent,
+				Result:    string(model.LoginResultSuccess),
+			})
+		}()
+	}
+
+	// 推送确认事件
+	response := &LoginResponse{
+		Token:        accessToken,
+		RefreshToken: refreshToken,
+		User:         user,
+	}
+	s.sseHub.PublishToUser(sessionID, "confirmed", response)
+
+	return response, nil
+}
+
+// LoginResponse 登录响应
+type LoginResponse struct {
+	Token        string      `json:"token"`
+	RefreshToken string      `json:"refresh_token"`
+	User         *model.User `json:"user"`
+}
+
+// Cancel 取消登录
+func (s *QRCodeLoginService) Cancel(ctx context.Context, sessionID, userID string) error {
+	session, err := s.GetSession(ctx, sessionID)
+	if err != nil {
+		return err
+	}
+
+	if session.Status != QRCodeStatusScanned {
+		return fmt.Errorf("invalid session status")
+	}
+
+	if session.UserID != userID {
+		return fmt.Errorf("unauthorized")
+	}
+
+	key := qrcodeSessionPrefix + sessionID
+	if err := s.redis.HSet(ctx, key, "status", string(QRCodeStatusCancelled)); err != nil {
+		return fmt.Errorf("failed to update status: %w", err)
+	}
+
+	// 推送取消事件
+	s.sseHub.PublishToUser(sessionID, "cancelled", map[string]interface{}{})
+
+	return nil
+}
+
+// GetSSEHub 获取SSE Hub
+func (s *QRCodeLoginService) GetSSEHub() *sse.Hub {
+	return s.sseHub
+}
+
+// GetUserService 获取用户服务
+func (s *QRCodeLoginService) GetUserService() UserService {
+	return s.userService
+}
--- a/internal/wire/handler.go
+++ b/internal/wire/handler.go
@@ -28,6 +28,7 @@ var HandlerSet = wire.NewSet(
 	handler.NewAdminGroupHandler,
 	handler.NewAdminDashboardHandler,
 	handler.NewAdminLogHandler,
+	handler.NewQRCodeHandler,

 	// 需要特殊处理的 Handler
 	ProvideUserHandler,
--- a/internal/wire/infrastructure.go
+++ b/internal/wire/infrastructure.go
@@ -9,11 +9,13 @@ import (
 	"carrot_bbs/internal/pkg/crypto"
 	"carrot_bbs/internal/pkg/email"
 	"carrot_bbs/internal/pkg/gorse"
+	"carrot_bbs/internal/pkg/hook"
 	"carrot_bbs/internal/pkg/openai"
 	"carrot_bbs/internal/pkg/redis"
 	"carrot_bbs/internal/pkg/s3"
 	"carrot_bbs/internal/pkg/sse"
 	"carrot_bbs/internal/repository"
+	"carrot_bbs/internal/service"

 	"github.com/google/wire"
 	"go.uber.org/zap"
@@ -38,6 +40,11 @@ var InfrastructureSet = wire.NewSet(
 	ProvideRedisClient,
 	ProvideCache,

+	// 钩子系统
+	ProvideHookManager,
+	ProvideBuiltinHooks,
+	ProvideModerationHooks,
+
 	// SSE Hub
 	ProvideSSEHub,

@@ -88,7 +95,18 @@ func ProvideCache(cfg *config.Config, redisClient *redis.Client) cache.Cache {
 		DisableFlushDB:  cfg.Cache.DisableFlushDB,
 	})

-	// 直接创建 RedisCache 实例，不依赖全局变量
+	if cfg.Cache.Local.Enabled {
+		layeredCache := cache.NewLayeredCache(redisClient, &cache.LayeredCacheOptions{
+			LocalSize:       cfg.Cache.Local.Size,
+			LocalBuckets:    cfg.Cache.Local.Buckets,
+			LocalDefaultTTL: time.Duration(cfg.Cache.Local.DefaultTTL) * time.Second,
+			KeyPrefix:       cfg.Cache.KeyPrefix,
+			Enabled:         cfg.Cache.Enabled,
+		})
+		zap.L().Info("Initialized layered cache (local LRU + Redis)")
+		return layeredCache
+	}
+
 	if redisClient == nil {
 		zap.L().Warn("Redis client is nil, cache will not be available")
 		return nil
@@ -99,6 +117,47 @@ func ProvideCache(cfg *config.Config, redisClient *redis.Client) cache.Cache {
 	return cacheInstance
 }

+// ProvideHookManager 提供钩子管理器
+func ProvideHookManager() *hook.Manager {
+	return hook.NewManager(&hook.ManagerOptions{
+		MaxConcurrentAsync: 100,
+		Enabled:            true,
+	})
+}
+
+// ProvideBuiltinHooks 注册内置钩子
+func ProvideBuiltinHooks(manager *hook.Manager) *hook.BuiltinHooks {
+	builtin := hook.NewBuiltinHooks(manager)
+	builtin.RegisterAll()
+	zap.L().Info("Registered builtin hooks")
+	return builtin
+}
+
+// ProvideModerationHooks 注册审核钩子
+func ProvideModerationHooks(
+	manager *hook.Manager,
+	postAIService *service.PostAIService,
+	postRepo *repository.PostRepository,
+	commentRepo *repository.CommentRepository,
+	cfg *config.Config,
+) *hook.ModerationHooks {
+	strictMode := cfg.OpenAI.StrictModeration
+
+	moderationHooks := hook.NewModerationHooks(
+		postAIService,
+		nil,
+		postRepo,
+		commentRepo,
+		strictMode,
+		"***",
+	)
+	moderationHooks.RegisterAll(manager)
+	zap.L().Info("Registered moderation hooks",
+		zap.Bool("strict_mode", strictMode),
+	)
+	return moderationHooks
+}
+
 // ProvideSSEHub 提供 SSE Hub
 func ProvideSSEHub() *sse.Hub {
 	return sse.NewHub()
--- a/internal/wire/service.go
+++ b/internal/wire/service.go
@@ -8,7 +8,9 @@ import (
 	"carrot_bbs/internal/grpc/runner"
 	"carrot_bbs/internal/pkg/email"
 	"carrot_bbs/internal/pkg/gorse"
+	"carrot_bbs/internal/pkg/hook"
 	"carrot_bbs/internal/pkg/openai"
+	"carrot_bbs/internal/pkg/redis"
 	"carrot_bbs/internal/pkg/s3"
 	"carrot_bbs/internal/pkg/sse"
 	"carrot_bbs/internal/repository"
@@ -50,6 +52,7 @@ var ServiceSet = wire.NewSet(
 	ProvideAdminCommentService,
 	ProvideAdminGroupService,
 	ProvideAdminDashboardService,
+	ProvideQRCodeLoginService,

 	// 日志服务
 	ProvideAsyncLogManager,
@@ -100,7 +103,6 @@ func ProvideSystemMessageService(
 	return service.NewSystemMessageService(notifyRepo, pushService, userRepo, postRepo, cacheBackend)
 }

-// ProvidePostService 提供帖子服务
 func ProvidePostService(
 	postRepo *repository.PostRepository,
 	systemMessageService service.SystemMessageService,
@@ -108,11 +110,11 @@ func ProvidePostService(
 	postAIService *service.PostAIService,
 	cacheBackend cache.Cache,
 	txManager repository.TransactionManager,
+	hookManager *hook.Manager,
 ) service.PostService {
-	return service.NewPostService(postRepo, systemMessageService, gorseClient, postAIService, cacheBackend, txManager)
+	return service.NewPostService(postRepo, systemMessageService, gorseClient, postAIService, cacheBackend, txManager, hookManager)
 }

-// ProvideCommentService 提供评论服务
 func ProvideCommentService(
 	commentRepo *repository.CommentRepository,
 	postRepo *repository.PostRepository,
@@ -120,8 +122,9 @@ func ProvideCommentService(
 	gorseClient gorse.Client,
 	postAIService *service.PostAIService,
 	cacheBackend cache.Cache,
+	hookManager *hook.Manager,
 ) *service.CommentService {
-	return service.NewCommentService(commentRepo, postRepo, systemMessageService, gorseClient, postAIService, cacheBackend)
+	return service.NewCommentService(commentRepo, postRepo, systemMessageService, gorseClient, postAIService, cacheBackend, hookManager)
 }

 // ProvideMessageService 提供消息服务
@@ -343,6 +346,18 @@ func ProvideLogService(
 	return service.NewLogService(operationLogService, loginLogService, dataChangeLogService)
 }

+// ProvideQRCodeLoginService 提供二维码登录服务
+func ProvideQRCodeLoginService(
+	redisClient *redis.Client,
+	sseHub *sse.Hub,
+	jwtService *service.JWTService,
+	userService service.UserService,
+	activityService service.UserActivityService,
+	logService *service.LogService,
+) *service.QRCodeLoginService {
+	return service.NewQRCodeLoginService(redisClient, sseHub, jwtService, userService, activityService, logService)
+}
+
 // parseDuration 解析时长字符串
 func parseDuration(s string) (time.Duration, error) {
 	return time.ParseDuration(s)