feat(项目): 项目初始化

.gitignore

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+yuchat-proxy-server
+yuchat-proxy-client.exe

Dockerfile

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+from docker.yuchat.top/alpine:3.11
+
+workdir /app
+expose 8080
+
+add yuchat-proxy-server /app
+
+entrypoint ["./yuchat-proxy-server"]    

client/main.go

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+package main
+
+import (
+	"log"
+	"net"
+	"test-proxy-go/common"
+
+	"github.com/gorilla/websocket"
+)
+
+const (
+	localPort        = ":1080"
+	websocketAddress = "ws://proxy.yuchat.top/ws"
+)
+
+func main() {
+	// 启动TCP监听
+	listener, err := net.Listen("tcp", localPort)
+	if err != nil {
+		log.Fatal("启动服务失败，错误信息: ", err)
+		return
+	}
+
+	log.Println("监听TCP端口成功，端口", localPort)
+
+	for {
+		conn, err := listener.Accept()
+
+		log.Println("有新的连接:", conn.RemoteAddr())
+		if err != nil {
+			log.Println("Error accepting connection:", err)
+			continue
+		}
+		wsConn, _, err := websocket.DefaultDialer.Dial(websocketAddress, nil)
+
+		if err != nil {
+			log.Println("Websocket连接失败:", err)
+			return
+		}
+
+		log.Println("Websocket连接成功，端口", websocketAddress)
+		go common.WsToTcpHandler(conn, wsConn)
+		go common.TcpToWsHandler(conn, wsConn)
+	}
+}

common/common.go

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+package common
+
+import (
+	"net"
+
+	"github.com/gorilla/websocket"
+)
+
+func WsToTcpHandler(conn net.Conn, wsConn *websocket.Conn) {
+	for {
+		_, p, err := wsConn.ReadMessage()
+		if err != nil {
+			return
+		}
+		conn.Write(p)
+	}
+}
+
+func TcpToWsHandler(conn net.Conn, wsConn *websocket.Conn) {
+	buf := make([]byte, 1024)
+	for {
+		n, err := conn.Read(buf)
+		if err != nil {
+			return
+		}
+
+		wsConn.WriteMessage(websocket.BinaryMessage, buf[:n])
+	}
+
+}

go.mod

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+module test-proxy-go
+
+go 1.21.0
+
+require github.com/gorilla/websocket v1.5.3 // indirect

go.sum

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+github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
+github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=

server/main.go

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+package main
+
+import (
+	"crypto/tls"
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"test-proxy-go/common"
+
+	"github.com/gorilla/websocket"
+)
+
+const (
+	tcpAddress = "172.20.0.1:1080"
+)
+
+var upgrader = websocket.Upgrader{
+	CheckOrigin: func(r *http.Request) bool {
+		return true // 允许来自任何来源的连接
+	},
+}
+
+func wsHandler(w http.ResponseWriter, r *http.Request) {
+	fmt.Println("有新的客户端连接了")
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		fmt.Println("websocket连接失败:", err)
+		return
+	}
+	remoteConn, err := net.Dial("tcp", tcpAddress)
+	if err != nil {
+		log.Printf("本地服务连接失败 %s: %v", tcpAddress, err)
+		return
+	}
+	fmt.Println("本地服务启动成功", tcpAddress)
+
+	go common.WsToTcpHandler(remoteConn, conn)
+	go common.TcpToWsHandler(remoteConn, conn)
+}
+
+// HTTP GET 接口，返回 "Hello, World!"
+func helloHandler(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusOK)                 // 设置状态码为 200 OK
+	w.Header().Set("Content-Type", "text/plain") // 设置响应内容类型
+	_, err := w.Write([]byte("Hello, World!"))
+	if err != nil {
+		log.Println("Write failed:", err)
+	}
+}
+
+func main() {
+	server := &http.Server{
+		Addr: ":8080",
+		TLSConfig: &tls.Config{
+			InsecureSkipVerify: true, // 可选
+		},
+	}
+	http.HandleFunc("/ws", wsHandler)
+	http.HandleFunc("/hello", helloHandler)
+	fmt.Println("WebSocket服务已启动，地址：ws://localhost:8080/ws")
+	if err := server.ListenAndServe(); err != nil {
+		log.Fatalf("Server failed: %s", err)
+	}
+
+}