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perf: 移除原始请求中，关于真实IP的部分，并优化打印log部分 #22

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perf: 移除原始请求中，关于真实IP的部分，并优化打印log部分 #22

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25 changes: 20 additions & 5 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,6 @@ import (
"log"
"net/http"
"net/url"
"os"
"strconv"
"strings"
)
Expand Down Expand Up @@ -45,6 +44,20 @@ func handleRequest(w http.ResponseWriter, r *http.Request) {
newPath := strings.Replace(r.URL.Path, "/release", "", 1)
newPath = strings.Replace(newPath, "/test", "", 1)

// 提取 X-Forwarded-For 和 X-Real-IP 头部
xForwardedFor := r.Header.Get("X-Forwarded-For")
xRealIP := r.Header.Get("X-Real-IP")

// 确定使用者IP
userIP := ""
if xForwardedFor != "" {
userIP = xForwardedFor
} else if xRealIP != "" {
userIP = xRealIP
} else {
userIP = r.RemoteAddr // 如果没有这些头部，使用连接来源地址
}

// 拼接目标URL（带上查询字符串，如果有的话）
// 如果请求中包含 X-Target-Host 头，则使用该头作为目标域名
// 优先级 header > args > default
Expand All @@ -58,10 +71,8 @@ func handleRequest(w http.ResponseWriter, r *http.Request) {
targetURL += "?" + r.URL.RawQuery
}

// 本地打印代理请求完整URL用于调试
if os.Getenv("ENV") == "local" {
fmt.Printf("Proxying request to: %s\n", targetURL)
}
// 打印代理请求信息
fmt.Printf("Proxying [%s] request for [%s]\n", targetURL, userIP)

// 创建代理HTTP请求
proxyReq, err := http.NewRequest(r.Method, targetURL, r.Body)
Expand All @@ -71,6 +82,10 @@ func handleRequest(w http.ResponseWriter, r *http.Request) {
return
}

// 删除原始请求中的 X-Forwarded-For 和 X-Real-IP 头部
r.Header.Del("X-Forwarded-For")
r.Header.Del("X-Real-IP")

// 将原始请求头复制到新请求中
for headerKey, headerValues := range r.Header {
for _, headerValue := range headerValues {
Expand Down