ssh-tun.py

import paramiko
import socket

def http_connect_proxy(proxy_host, proxy_port, target_host, target_port):
    """
    Establish a socket connection through an HTTP proxy.
    """
    proxy = (proxy_host, proxy_port)
    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    s.connect(proxy)

    # Send HTTP CONNECT request to the proxy
    connect_request = f"CONNECT {target_host}:{target_port} HTTP/1.1\r\nHost: {target_host}:{target_port}\r\n\r\n"
    s.sendall(connect_request.encode())

    # Receive the response from the proxy
    buffer = b""
    while not buffer.endswith(b"\r\n\r\n"):
        buffer += s.recv(4096)

    # Check the response
    response = buffer.decode().split("\r\n")[0]
    if not response.startswith("HTTP/1.1 200 "):
        raise Exception(f"Failed to connect through proxy: {response}")

    return s

def main():
    # Proxy settings
    proxy_host = "proxy_server_address"
    proxy_port = 8080

    # Target SSH server settings
    target_host = "ssh_server_address"
    target_port = 22
    username = "your_username"
    password = "your_password"

    # Establish connection through HTTP proxy
    try:
        proxy_sock = http_connect_proxy(proxy_host, proxy_port, target_host, target_port)
    except Exception as e:
        print(f"Failed to establish proxy connection: {e}")
        return

    # Establish SSH connection
    ssh_client = paramiko.SSHClient()
    ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    try:
        ssh_client.connect(target_host, port=target_port, username=username, password=password, sock=proxy_sock)
    except Exception as e:
        print(f"Failed to establish SSH connection: {e}")
        return

    # Executing a command to test the SSH connection
    stdin, stdout, stderr = ssh_client.exec_command("ls")
    print(stdout.read().decode())
    ssh_client.close()

if __name__ == "__main__":
    main()