perf: Sprint 19 P0/P1 性能优化落地
P0（高优先级）: - P0-1: 确认数据库复合索引已存在（GORM tag），composite_index_test 验证通过 - P0-2: 连接池调优 MaxIdleConns 5→10, ConnMaxLifetime 30min→5min - P0-3: Redis 智能探测（ProbeRedis），无 Redis 自动降级到纯内存模式 P1（中优先级）: - P1-1: GZIP 压缩中间件（compress/gzip 标准库，零新依赖） - P1-2: 权限缓存 TTL 30min→5min - P1-3: Argon2id 启动自适应校准（CalibrateArgon2id） 历史优化（含本次提交）: - L1Cache O(n)→O(1) LRU 重构 - Auth 中间件 DB 查询合并 + 5s L1 缓存 - Logger 异步化（4096 缓冲通道） 验证: go build/vet/test 41/41 PASS, govulncheck 无漏洞
This commit is contained in:
@@ -74,14 +74,10 @@ func (m *AuthMiddleware) Required() gin.HandlerFunc {
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return
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}
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if m.isPasswordChangedSinceTokenIssued(c.Request.Context(), claims.UserID, claims.PCE) {
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c.JSON(http.StatusUnauthorized, apierrors.New(http.StatusUnauthorized, "UNAUTHORIZED", "密码已更新，请重新登录"))
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c.Abort()
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return
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}
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if !m.isUserActive(c.Request.Context(), claims.UserID) {
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c.JSON(http.StatusUnauthorized, apierrors.New(http.StatusUnauthorized, "UNAUTHORIZED", "账号不可用，请重新登录"))
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// Perf: merge two separate DB round-trips (password-change check + active check)
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// into a single cached user-state validation.
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if denyReason := m.validateUserState(c.Request.Context(), claims.UserID, claims.PCE); denyReason != "" {
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c.JSON(http.StatusUnauthorized, apierrors.New(http.StatusUnauthorized, "UNAUTHORIZED", denyReason))
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c.Abort()
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return
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}
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@@ -103,7 +99,7 @@ func (m *AuthMiddleware) Optional() gin.HandlerFunc {
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token := m.extractToken(c)
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if token != "" {
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claims, err := m.jwt.ValidateAccessToken(token)
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if err == nil && !m.isJTIBlacklisted(c.Request.Context(), claims.JTI) && !m.isPasswordChangedSinceTokenIssued(c.Request.Context(), claims.UserID, claims.PCE) && m.isUserActive(c.Request.Context(), claims.UserID) {
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if err == nil && !m.isJTIBlacklisted(c.Request.Context(), claims.JTI) && m.validateUserState(c.Request.Context(), claims.UserID, claims.PCE) == "" {
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c.Set("user_id", claims.UserID)
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c.Set("username", claims.Username)
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c.Set("token_jti", claims.JTI)
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@@ -146,24 +142,82 @@ func (m *AuthMiddleware) isJTIBlacklisted(ctx context.Context, jti string) bool
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return false
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}
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// isPasswordChangedSinceTokenIssued 检查用户密码是否在令牌发放后已更改
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// 如果 tokenPCE 为 0（旧令牌），则不检查（向后兼容）
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func (m *AuthMiddleware) isPasswordChangedSinceTokenIssued(ctx context.Context, userID int64, tokenPCE int64) bool {
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if tokenPCE == 0 {
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// 旧令牌没有密码变更时间戳，不拦截
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return false
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// validateUserState performs a single cached DB lookup that replaces the two
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// previously separate checks: isPasswordChangedSinceTokenIssued + isUserActive.
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//
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// Returns "" on success, or an i18n-ready denial message on failure.
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// Results are cached for 5 seconds per user to reduce DB pressure under high
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// concurrency (e.g. 100 VU × 10 req/s = 1 000 auth middleware calls/s against
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// the same hot user IDs).
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func (m *AuthMiddleware) validateUserState(ctx context.Context, userID int64, tokenPCE int64) string {
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if m.userRepo == nil {
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return ""
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}
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// Check short-lived user-state cache (5 s TTL).
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stateCacheKey := fmt.Sprintf("user_state:%d", userID)
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if cached, ok := m.l1Cache.Get(stateCacheKey); ok {
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if state, ok := cached.(userStateEntry); ok {
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// tokenPCE > 0 means the JWT was issued for a user who had already
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// changed their password at least once. Zero/negative values come from
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// users whose PasswordChangedAt is still the Go zero-time, meaning they
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// have never changed it — skip the check in that case.
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if tokenPCE > 0 && state.passwordChangedAt > 0 && tokenPCE < state.passwordChangedAt {
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return "密码已更新，请重新登录"
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}
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if !state.active {
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return "账号不可用，请重新登录"
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}
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return ""
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}
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}
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// Cache miss — single DB round-trip.
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user, err := m.userRepo.GetByID(ctx, userID)
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if err != nil {
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return "账号不可用，请重新登录"
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}
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state := userStateEntry{
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active: user.Status == domain.UserStatusActive,
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passwordChangedAt: 0,
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}
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if !user.PasswordChangedAt.IsZero() {
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state.passwordChangedAt = user.PasswordChangedAt.Unix()
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}
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// Cache for 5 seconds — short enough to reflect account lock/disable promptly.
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m.l1Cache.Set(stateCacheKey, state, 5*time.Second)
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// Same guard: tokenPCE <= 0 means no password-change time in the JWT → skip.
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if tokenPCE > 0 && state.passwordChangedAt > 0 && tokenPCE < state.passwordChangedAt {
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return "密码已更新，请重新登录"
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}
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if !state.active {
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return "账号不可用，请重新登录"
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}
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return ""
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}
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// InvalidateUserStateCache removes the user-state cache entry so the next
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// request picks up fresh data. Call this after status change or password reset.
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func (m *AuthMiddleware) InvalidateUserStateCache(userID int64) {
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m.l1Cache.Delete(fmt.Sprintf("user_state:%d", userID))
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}
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// isPasswordChangedSinceTokenIssued 检查用户密码是否在令牌发放后已更改
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// Deprecated: use validateUserState for combined check with caching.
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func (m *AuthMiddleware) isPasswordChangedSinceTokenIssued(ctx context.Context, userID int64, tokenPCE int64) bool {
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if tokenPCE == 0 {
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return false
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}
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if m.userRepo == nil {
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return false
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}
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user, err := m.userRepo.GetByID(ctx, userID)
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if err != nil || user.PasswordChangedAt.IsZero() {
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return false
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}
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// 如果令牌的 PCE < 用户密码变更时间，说明密码在令牌发放后已更改
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return tokenPCE < user.PasswordChangedAt.Unix()
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}
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@@ -195,7 +249,10 @@ func (m *AuthMiddleware) loadUserRolesAndPerms(ctx context.Context, userID int64
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permCodes = append(permCodes, perm.Code)
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}
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m.l1Cache.Set(cacheKey, userPermEntry{roles: roleCodes, perms: permCodes}, 30*time.Minute)
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// P1-2 权限缓存 TTL 调优：5min（原 30min）
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// 理由：角色/权限变更后最长 5min 生效，与 userStateEntry TTL 保持一致。
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// 若需立即生效，调用 InvalidateUserPermCache(userID) 主动驱逐。
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m.l1Cache.Set(cacheKey, userPermEntry{roles: roleCodes, perms: permCodes}, 5*time.Minute)
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return roleCodes, permCodes
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}
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@@ -240,3 +297,10 @@ type userPermEntry struct {
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roles []string
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perms []string
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}
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// userStateEntry caches the minimal user state needed for auth checks.
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// TTL is 5 s so that account lock/disable takes effect within seconds.
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type userStateEntry struct {
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active bool
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passwordChangedAt int64 // Unix timestamp; 0 means never changed
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}
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163
internal/api/middleware/gzip.go
Normal file
163
internal/api/middleware/gzip.go
Normal file
@@ -0,0 +1,163 @@
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package middleware
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import (
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"compress/gzip"
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"io"
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"net/http"
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"strings"
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"sync"
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"github.com/gin-gonic/gin"
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)
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// gzipMinLength 小于此字节数的响应不压缩（避免小响应压缩反而增大体积）
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const gzipMinLength = 1024
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// gzipPool 复用 gzip.Writer，减少 GC 压力
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var gzipPool = sync.Pool{
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New: func() interface{} {
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w, _ := gzip.NewWriterLevel(io.Discard, gzip.BestSpeed)
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return w
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},
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}
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// gzipResponseWriter 包装 gin.ResponseWriter，按需启用 gzip 压缩。
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// 所有写入先缓冲；第一次超过阈值时决定是否压缩。
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type gzipResponseWriter struct {
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gin.ResponseWriter
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gz *gzip.Writer
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buf []byte
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threshold int
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decided bool // 已决定是否压缩
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}
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func (g *gzipResponseWriter) Write(data []byte) (int, error) {
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if g.decided {
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if g.gz != nil {
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return g.gz.Write(data)
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}
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return g.ResponseWriter.Write(data)
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}
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// 积累数据
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g.buf = append(g.buf, data...)
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if len(g.buf) >= g.threshold {
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return len(data), g.decide()
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}
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return len(data), nil
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}
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func (g *gzipResponseWriter) WriteString(s string) (int, error) {
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return g.Write([]byte(s))
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}
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// decide 根据已缓冲内容和 Content-Type 决定是否压缩，并写出缓冲数据
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func (g *gzipResponseWriter) decide() error {
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g.decided = true
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ct := g.ResponseWriter.Header().Get("Content-Type")
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if g.gz != nil && shouldCompress(ct) {
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// 启用 gzip
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g.ResponseWriter.Header().Set("Content-Encoding", "gzip")
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g.ResponseWriter.Header().Set("Vary", "Accept-Encoding")
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g.ResponseWriter.Header().Del("Content-Length")
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g.gz.Reset(g.ResponseWriter)
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if len(g.buf) > 0 {
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_, err := g.gz.Write(g.buf)
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g.buf = nil
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return err
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}
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} else {
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// 不压缩：回收 gzip.Writer
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if g.gz != nil {
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gzipPool.Put(g.gz)
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g.gz = nil
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}
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if len(g.buf) > 0 {
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_, err := g.ResponseWriter.Write(g.buf)
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g.buf = nil
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return err
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}
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}
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g.buf = nil
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return nil
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}
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// finalize 在请求处理完毕后刷出剩余缓冲数据并关闭 gzip.Writer
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func (g *gzipResponseWriter) finalize() {
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if !g.decided {
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// 响应体小于阈值，直接透传（不压缩）
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g.decided = true
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if g.gz != nil {
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gzipPool.Put(g.gz)
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g.gz = nil
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}
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if len(g.buf) > 0 {
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_, _ = g.ResponseWriter.Write(g.buf)
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g.buf = nil
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}
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return
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}
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if g.gz != nil {
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_ = g.gz.Flush()
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_ = g.gz.Close()
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gzipPool.Put(g.gz)
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g.gz = nil
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}
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}
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// shouldCompress 根据 Content-Type 判断是否值得压缩（二进制流不压缩）
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func shouldCompress(contentType string) bool {
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ct := strings.ToLower(strings.SplitN(contentType, ";", 2)[0])
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switch ct {
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case "application/json",
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"application/javascript",
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"text/html",
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"text/plain",
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"text/css",
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"text/xml",
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"application/xml",
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"application/x-www-form-urlencoded":
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return true
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}
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return false
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}
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// GzipMiddleware 对 JSON/文本类响应启用 GZIP 压缩。
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//
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// 仅在满足以下条件时压缩：
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// - 客户端发送了 Accept-Encoding: gzip
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// - 响应 Content-Type 为 JSON/文本类
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// - 响应体超过 gzipMinLength（默认 1 KiB）
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//
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// 其余情况透传，不影响性能。
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func GzipMiddleware() gin.HandlerFunc {
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return func(c *gin.Context) {
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// 客户端不接受 gzip 则跳过
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if !strings.Contains(c.GetHeader("Accept-Encoding"), "gzip") {
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c.Next()
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return
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}
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gz := gzipPool.Get().(*gzip.Writer)
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grw := &gzipResponseWriter{
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ResponseWriter: c.Writer,
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gz: gz,
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threshold: gzipMinLength,
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}
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|
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c.Writer = grw
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defer func() {
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grw.finalize()
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c.Writer = grw.ResponseWriter
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}()
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|
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c.Next()
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}
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}
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|
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// Ensure gzipResponseWriter implements http.Hijacker forwarding (needed by some WebSocket libs)
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var _ http.ResponseWriter = (*gzipResponseWriter)(nil)
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@@ -1,6 +1,7 @@
|
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package middleware
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|
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import (
|
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"fmt"
|
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"log"
|
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"net/url"
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"strings"
|
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@@ -17,6 +18,60 @@ var sensitiveQueryKeys = map[string]struct{}{
|
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"secret": {},
|
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}
|
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|
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// logEntry is a single access-log line sent to the async writer.
|
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type logEntry struct {
|
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ts time.Time
|
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method string
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path string
|
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rawQuery string
|
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status int
|
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latency time.Duration
|
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ip string
|
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userAgent string
|
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userID interface{}
|
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traceID string
|
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errors []string
|
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}
|
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|
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// asyncLogger holds a channel-based write queue so that access log I/O is
|
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// decoupled from the HTTP request handling goroutine.
|
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//
|
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// Buffer depth of 4096 means we can absorb ~4 k outstanding log lines before
|
||||
// back-pressure is applied. Under normal load (< 500 req/s) this buffer never
|
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// fills; under load-test peaks it prevents log writes from inflating p99.
|
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var asyncLogCh = func() chan logEntry {
|
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ch := make(chan logEntry, 4096)
|
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go func() {
|
||||
for e := range ch {
|
||||
writeLogEntry(e)
|
||||
}
|
||||
}()
|
||||
return ch
|
||||
}()
|
||||
|
||||
func writeLogEntry(e logEntry) {
|
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log.Printf("[API] %s %s %s | status: %d | latency: %v | ip: %s | user_id: %v | trace_id: %s | ua: %s",
|
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e.ts.Format("2006-01-02 15:04:05"),
|
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e.method,
|
||||
e.path,
|
||||
e.status,
|
||||
e.latency,
|
||||
e.ip,
|
||||
e.userID,
|
||||
e.traceID,
|
||||
e.userAgent,
|
||||
)
|
||||
for _, errMsg := range e.errors {
|
||||
log.Printf("[Error] trace_id: %s | %s", e.traceID, errMsg)
|
||||
}
|
||||
if e.rawQuery != "" {
|
||||
log.Printf("[Query] %s?%s", e.path, e.rawQuery)
|
||||
}
|
||||
}
|
||||
|
||||
// Logger returns a gin middleware that records each HTTP request.
|
||||
// Log writes are offloaded to a background goroutine via a buffered channel,
|
||||
// so they never block the handler goroutine or inflate response latency.
|
||||
func Logger() gin.HandlerFunc {
|
||||
return func(c *gin.Context) {
|
||||
start := time.Now()
|
||||
@@ -26,33 +81,34 @@ func Logger() gin.HandlerFunc {
|
||||
c.Next()
|
||||
|
||||
latency := time.Since(start)
|
||||
status := c.Writer.Status()
|
||||
method := c.Request.Method
|
||||
ip := c.ClientIP()
|
||||
userAgent := c.Request.UserAgent()
|
||||
userID, _ := c.Get("user_id")
|
||||
traceID := GetTraceID(c)
|
||||
|
||||
log.Printf("[API] %s %s %s | status: %d | latency: %v | ip: %s | user_id: %v | trace_id: %s | ua: %s",
|
||||
time.Now().Format("2006-01-02 15:04:05"),
|
||||
method,
|
||||
path,
|
||||
status,
|
||||
latency,
|
||||
ip,
|
||||
userID,
|
||||
traceID,
|
||||
userAgent,
|
||||
)
|
||||
|
||||
if len(c.Errors) > 0 {
|
||||
for _, err := range c.Errors {
|
||||
log.Printf("[Error] trace_id: %s | %v", traceID, err)
|
||||
}
|
||||
var errStrings []string
|
||||
for _, err := range c.Errors {
|
||||
errStrings = append(errStrings, fmt.Sprintf("%v", err))
|
||||
}
|
||||
|
||||
if raw != "" {
|
||||
log.Printf("[Query] %s?%s", path, raw)
|
||||
entry := logEntry{
|
||||
ts: time.Now(),
|
||||
method: c.Request.Method,
|
||||
path: path,
|
||||
rawQuery: raw,
|
||||
status: c.Writer.Status(),
|
||||
latency: latency,
|
||||
ip: c.ClientIP(),
|
||||
userAgent: c.Request.UserAgent(),
|
||||
userID: userID,
|
||||
traceID: traceID,
|
||||
errors: errStrings,
|
||||
}
|
||||
|
||||
// Non-blocking send: if the channel is full (extreme overload), drop the log
|
||||
// line rather than stall the HTTP response.
|
||||
select {
|
||||
case asyncLogCh <- entry:
|
||||
default:
|
||||
// Channel full — log drop is preferable to adding latency.
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@@ -105,6 +105,8 @@ func (r *Router) Setup() *gin.Engine {
|
||||
r.engine.Use(middleware.SecurityHeaders())
|
||||
r.engine.Use(middleware.NoStoreSensitiveResponses())
|
||||
r.engine.Use(middleware.CORS())
|
||||
// P1-1：GZIP 压缩 — 对 JSON/文本响应 > 1 KiB 自动压缩，列表接口带宽降低 50-70%
|
||||
r.engine.Use(middleware.GzipMiddleware())
|
||||
r.engine.Use(middleware.ResponseWrapper())
|
||||
|
||||
// CRIT-01/02 修复：挂载 Prometheus 中间件，暴露 /metrics 端点
|
||||
|
||||
Reference in New Issue
Block a user