公网tcp转流

news2024/12/24 21:57:00

之前做过几次公网推流的尝试, 今天试了UDP推到公网, 再用TCP从公网拉下来, 发现不行, 就直接改用TCP转TCP了.
中间中转使用的python脚本, 感谢GPT提供技术支持:

import socket
import threading


def tcp_receiver(port, forward_queue):
    """接收TCP数据并将其放入队列"""
    receiver_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    receiver_socket.bind(('', port))
    receiver_socket.listen(1)
    print(f"TCP receiver ready on port {port}")

    while True:
        client_socket, addr = receiver_socket.accept()
        print(f"Connected by {addr} for receiving data on port {port}")

        try:
            while True:
                data = client_socket.recv(1024)
                if not data:
                    break
                forward_queue.put(data)
        finally:
            client_socket.close()
            print(f"Receiver connection closed by {addr}")


def tcp_forwarder(port, forward_queue):
    """从队列中获取数据并转发到另一个TCP连接"""
    forwarder_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    forwarder_socket.bind(('', port))
    forwarder_socket.listen(1)
    print(f"TCP forwarder ready on port {port}")

    while True:
        client_socket, addr = forwarder_socket.accept()
        print(f"Connected by {addr} for forwarding data on port {port}")

        try:
            while True:
                data = forward_queue.get()  # This blocks until data is available
                try:
                    client_socket.sendall(data)
                except socket.error:
                    print("Failed to send data, discarding packet")
                    break  # End connection if sending fails
        finally:
            client_socket.close()
            print(f"Forwarder connection closed by {addr}")


if __name__ == '__main__':
    from queue import Queue

    data_queue = Queue()

    receiver_thread = threading.Thread(target=tcp_receiver, args=(9998, data_queue))
    forwarder_thread = threading.Thread(target=tcp_forwarder, args=(9997, data_queue))

    receiver_thread.start()
    forwarder_thread.start()