Created
August 6, 2024 07:57
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| package main | |
| import ( | |
| "bufio" | |
| "fmt" | |
| "io" | |
| "log" | |
| "net" | |
| "strings" | |
| ) | |
| func main() { | |
| listener, err := net.Listen("tcp", ":8080") | |
| if err != nil { | |
| log.Fatal("Failed to start server:", err) | |
| } | |
| defer listener.Close() | |
| fmt.Println("Proxy server listening on :8080") | |
| for { | |
| conn, err := listener.Accept() | |
| if err != nil { | |
| log.Println("Failed to accept connection:", err) | |
| continue | |
| } | |
| go handleConnection(conn) | |
| } | |
| } | |
| func handleConnection(clientConn net.Conn) { | |
| defer clientConn.Close() | |
| reader := bufio.NewReader(clientConn) | |
| requestLine, err := reader.ReadString('\n') | |
| if err != nil { | |
| log.Println("Error reading request:", err) | |
| return | |
| } | |
| parts := strings.Split(requestLine, " ") | |
| if len(parts) != 3 { | |
| log.Println("Invalid request line:", requestLine) | |
| return | |
| } | |
| host := parts[1] | |
| if !strings.HasPrefix(host, "http://") { | |
| host = "http://" + host | |
| } | |
| targetConn, err := net.Dial("tcp", host[7:]) | |
| if err != nil { | |
| log.Println("Failed to connect to target:", err) | |
| return | |
| } | |
| defer targetConn.Close() | |
| // Forward the request to the target server | |
| fmt.Fprintf(targetConn, "%s", requestLine) | |
| go io.Copy(targetConn, reader) | |
| // Forward the response back to the client | |
| io.Copy(clientConn, targetConn) | |
| } |
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