xiaolajiaoyyds
6f71df4849
多平台账号批量注册系统，支持 OpenAI / Grok / Kiro / Gemini 平台的全自动注册。 Features: - 用户名/密码注册登录（首个用户自动管理员） - JWT 认证 + bcrypt 密码加密 - 积分系统与多用户管理 - HuggingFace Space 弹性 Worker 节点管理 - Cloudflare Worker 负载均衡 - 实时日志推送（SSE/WebSocket） - 管理后台（用户管理、系统设置、代理池、卡池） Tech Stack: Go 1.25 / Gin / GORM / PostgreSQL / Vue 3 / Vite / TailwindCSS
90 lines
1.8 KiB
Go
90 lines
1.8 KiB
Go
package middleware
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import (
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"net/http"
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"sync"
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"time"
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"github.com/gin-gonic/gin"
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)
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// rateBucket 令牌桶
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type rateBucket struct {
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tokens float64
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lastTime time.Time
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maxTokens float64
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refillRate float64 // tokens per second
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}
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// RateLimiter 基于 IP 的内存限流器
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type RateLimiter struct {
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buckets map[string]*rateBucket
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mu sync.Mutex
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max float64
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rate float64
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}
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// NewRateLimiter 创建限流器
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// max: 最大令牌数（突发容量）, perMinute: 每分钟补充令牌数
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func NewRateLimiter(max float64, perMinute float64) *RateLimiter {
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rl := &RateLimiter{
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buckets: make(map[string]*rateBucket),
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max: max,
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rate: perMinute / 60.0,
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}
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// 定期清理过期桶
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go func() {
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for {
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time.Sleep(10 * time.Minute)
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rl.mu.Lock()
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cutoff := time.Now().Add(-30 * time.Minute)
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for k, b := range rl.buckets {
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if b.lastTime.Before(cutoff) {
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delete(rl.buckets, k)
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}
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}
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rl.mu.Unlock()
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}
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}()
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return rl
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}
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// Allow 检查是否允许请求
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func (rl *RateLimiter) Allow(key string) bool {
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rl.mu.Lock()
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defer rl.mu.Unlock()
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now := time.Now()
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b, ok := rl.buckets[key]
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if !ok {
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b = &rateBucket{tokens: rl.max, lastTime: now, maxTokens: rl.max, refillRate: rl.rate}
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rl.buckets[key] = b
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}
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// 补充令牌
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elapsed := now.Sub(b.lastTime).Seconds()
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b.tokens += elapsed * b.refillRate
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if b.tokens > b.maxTokens {
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b.tokens = b.maxTokens
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}
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b.lastTime = now
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if b.tokens >= 1 {
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b.tokens--
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return true
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}
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return false
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}
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// RateLimit 限流中间件
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func RateLimit(limiter *RateLimiter) gin.HandlerFunc {
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return func(c *gin.Context) {
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key := c.ClientIP()
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if !limiter.Allow(key) {
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c.AbortWithStatusJSON(http.StatusTooManyRequests, gin.H{"detail": "请求过于频繁，请稍后再试"})
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return
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}
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c.Next()
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}
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}
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