33 lines
1.1 KiB
Go
33 lines
1.1 KiB
Go
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package middleware
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import (
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"log"
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"net/http"
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)
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func RateLimit(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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clientIP := GetClientIP(r)
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if !GlobalRateLimiter.Allow(clientIP) {
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log.Printf("警告: 已超过IP速率限制，拒绝请求 - 客户端IP: %s", clientIP)
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SendJSONError(w, http.StatusTooManyRequests, "Rate limit exceeded. Please try again later.", "rate_limit_error", "rate_limit_exceeded")
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return
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}
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next.ServeHTTP(w, r)
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})
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}
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func ConcurrencyLimit(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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select {
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case ConcurrencySem <- struct{}{}:
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defer func() { <-ConcurrencySem }()
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next.ServeHTTP(w, r)
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default:
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log.Printf("警告: 已达到最大并发请求数限制，拒绝请求 - 客户端IP: %s", GetClientIP(r))
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SendJSONError(w, http.StatusServiceUnavailable, "Server is busy, maximum concurrent requests reached. Please try again later.", "concurrency_limit_error", "max_concurrent_requests")
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return
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}
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})
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}
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