init

build.sh

@@ -0,0 +1,17 @@
+:
+
+_build()
+{
+    ARCH="amd64"
+
+    for a in $ARCH
+    do
+
+        CGO_ENABLED=0 GOOS=linux GOARCH=$a go build -ldflags '-w -s' -o $a main.go && upx -9 $a
+    done
+
+    cp amd64 inet-ip
+
+}
+
+_build

go.mod

@@ -0,0 +1,10 @@
+module main
+
+go 1.21.1
+
+require github.com/sevlyar/go-daemon v0.1.6
+
+require (
+	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
+	golang.org/x/sys v0.22.0 // indirect
+)

go.sum

@@ -0,0 +1,6 @@
+github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 h1:iQTw/8FWTuc7uiaSepXwyf3o52HaUYcV+Tu66S3F5GA=
+github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0/go.mod h1:1NbS8ALrpOvjt0rHPNLyCIeMtbizbir8U//inJ+zuB8=
+github.com/sevlyar/go-daemon v0.1.6 h1:EUh1MDjEM4BI109Jign0EaknA2izkOyi0LV3ro3QQGs=
+github.com/sevlyar/go-daemon v0.1.6/go.mod h1:6dJpPatBT9eUwM5VCw9Bt6CdX9Tk6UWvhW3MebLDRKE=
+golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=
+golang.org/x/sys v0.22.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

inet-ip.conf

@@ -0,0 +1,17 @@
+server {
+    listen 80;
+    listen 443 ssl;
+    server_name inet-ip.aixiao.me;
+    ssl_certificate /opt/nginx/cert/aixiao.me.cer;
+    ssl_certificate_key /opt/nginx/cert/aixiao.me.key;
+    ssl_session_timeout 5m;
+    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
+    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
+    ssl_prefer_server_ciphers on;
+
+    location / {
+        proxy_pass http://localhost:90;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    }
+}

main.go

@@ -0,0 +1,93 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+
+	"github.com/sevlyar/go-daemon"
+)
+
+// 获取客户端IP的函数
+func getClientIP(r *http.Request) string {
+	// 尝试从X-Forwarded-For头部获取IP
+	forwarded := r.Header.Get("X-Forwarded-For")
+	if forwarded != "" {
+		// X-Forwarded-For可能包含多个IP地址，取第一个
+		ips := strings.Split(forwarded, ",")
+		return strings.TrimSpace(ips[0])
+	}
+	// 尝试从X-Real-Ip头部获取IP
+	realIP := r.Header.Get("X-Real-Ip")
+	if realIP != "" {
+		return realIP
+	}
+	// 最后从RemoteAddr中获取IP
+	return r.RemoteAddr
+}
+
+// 处理HTTP请求的函数
+func handler(w http.ResponseWriter, r *http.Request) {
+	clientIP := getClientIP(r)
+	response := fmt.Sprintf("%s", clientIP)
+	fmt.Fprintln(w, response)
+	log.Printf("Handled request from %s\n", clientIP) // 记录日志
+}
+
+func main() {
+	// 定义守护进程的启动配置
+	cntxt := &daemon.Context{
+		PidFileName: "inet-ip.pid",
+		PidFilePerm: 0644,
+		LogFileName: "inet-ip.log",
+		LogFilePerm: 0640,
+		WorkDir:     "./",
+		Umask:       027,
+		Args:        []string{"[inet-ip]"},
+	}
+
+	// 启动守护进程
+	d, err := cntxt.Reborn()
+	if err != nil {
+		log.Fatal("Unable to run: ", err)
+	}
+	if d != nil {
+		return
+	}
+	defer cntxt.Release()
+
+	// 设置日志输出到文件
+	logFile, err := os.OpenFile("inet-ip.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0666)
+	if err != nil {
+		log.Fatalf("Error opening log file: %s", err)
+	}
+	defer logFile.Close()
+	log.SetOutput(logFile)
+
+	// 启动HTTP服务器
+	go serveHTTP()
+
+	// 创建一个通道来接收操作系统信号
+	stop := make(chan os.Signal, 1)
+	signal.Notify(stop, syscall.SIGINT, syscall.SIGTERM)
+
+	log.Println("Server started")
+
+	// 等待信号
+	<-stop
+
+	// 服务器停止时记录日志
+	log.Println("Server stopped")
+}
+
+func serveHTTP() {
+	http.HandleFunc("/", handler)
+	fmt.Println("Starting server on :90")
+	if err := http.ListenAndServe(":90", nil); err != nil && err != http.ErrServerClosed {
+		log.Fatalf("Error starting server: %s", err)
+	}
+}