87 lines
1.6 KiB
Go
87 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"log"
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"net"
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"net/http"
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"github.com/gorilla/websocket"
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)
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var upgrader = websocket.Upgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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}
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var tcpConn net.Conn
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func main() {
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// Connect to TCP server
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var err error
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tcpConn, err = net.Dial("tcp", "localhost:2222") // Replace with your TCP server address
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if err != nil {
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log.Fatal("Error connecting to TCP server:", err)
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}
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defer tcpConn.Close()
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// Set up WebSocket handler
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http.HandleFunc("/ws", handleWebSocket)
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// Start HTTP server
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fmt.Println("WebSocket server listening on :8000")
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log.Fatal(http.ListenAndServe(":8000", nil))
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}
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func handleWebSocket(w http.ResponseWriter, r *http.Request) {
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println("Error upgrading to WebSocket:", err)
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return
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}
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defer conn.Close()
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waitChannel := make(chan bool)
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// Read message from WebSocket
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go func() {
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defer func() {
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waitChannel <- true
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}()
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for {
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_, message, err := conn.ReadMessage()
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if err != nil {
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log.Println("Error reading WebSocket message:", err)
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return
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}
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_, err = tcpConn.Write(message)
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if err != nil {
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log.Println("Error sending message to TCP server:", err)
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return
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}
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}
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}()
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go func() {
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defer func() {
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waitChannel <- true
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}()
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for {
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buffer := make([]byte, 1024)
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n, err := tcpConn.Read(buffer)
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if err != nil {
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log.Println("Error reading from TCP server:", err)
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return
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}
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err = conn.WriteMessage(websocket.TextMessage, buffer[:n])
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if err != nil {
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log.Println("Error writing WebSocket message:", err)
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return
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}
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}
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}()
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<-waitChannel
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log.Println("Connection closed")
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}
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