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tcp relay
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| #!/usr/bin/python | |
| import logging | |
| import socket | |
| from threading import Thread | |
| class PipeThread(Thread): | |
| pipes = [] | |
| def __init__(self, source, sink): | |
| Thread.__init__(self) | |
| self.source = source | |
| self.sink = sink | |
| logging.info('new pipe thread %s (%s -> %s)' % \ | |
| (self, source.getpeername(), sink.getpeername())) | |
| PipeThread.pipes.append(self) | |
| logging.info('%s pipes active' % len(PipeThread.pipes)) | |
| def run(self): | |
| while True: | |
| try: | |
| data = self.source.recv(1024) | |
| if not data: | |
| break | |
| self.sink.send(data) | |
| except Exception as e: | |
| logging.error(e) | |
| break | |
| logging.info('%s terminating' % self) | |
| self.sink.shutdown(socket.SHUT_WR) | |
| PipeThread.pipes.remove(self) | |
| logging.info('%s pipes active' % len(PipeThread.pipes)) | |
| class Relay(Thread): | |
| def __init__(self, port, dst_host, dst_port): | |
| Thread.__init__(self) | |
| logging.info('relaying: localhost:%s -> %s:%s' % (port, dst_host, dst_port)) | |
| self.dst_host = dst_host | |
| self.dst_port = dst_port | |
| self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
| self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) | |
| self.sock.bind(('0.0.0.0', port)) | |
| self.sock.listen(1) | |
| def run(self): | |
| while True: | |
| newsock, address = self.sock.accept() | |
| logging.info('new session for %s %s' % address) | |
| fwd = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
| fwd.connect((self.dst_host, self.dst_port)) | |
| PipeThread(newsock, fwd).start() | |
| PipeThread(fwd, newsock).start() | |
| if __name__ == '__main__': | |
| logging.basicConfig(level=logging.INFO, format='%(asctime)s %(message)s') | |
| logging.info('starting relay') | |
| import sys | |
| port = int(sys.argv[1]) | |
| dst_host = sys.argv[2] | |
| dst_port = int(sys.argv[3]) | |
| Relay(port, dst_host, dst_port).start() |
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| #!/usr/bin/python | |
| from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer | |
| import logging | |
| class Handler(BaseHTTPRequestHandler): | |
| def _set_headers(self): | |
| self.send_response(200) | |
| self.end_headers() | |
| def do_GET(self): | |
| logging.info('do_GET') | |
| self._set_headers() | |
| self.wfile.write('reply GET\n') | |
| def do_POST(self): | |
| logging.info('do_POST') | |
| content_len = int(self.headers.getheader('content-length', 0)) | |
| post_body = self.rfile.read(content_len) | |
| self._set_headers() | |
| self.wfile.write('reply POST\n' + post_body + '\n') | |
| def run(port): | |
| HTTPServer(('0.0.0.0', port), Handler).serve_forever() | |
| if __name__ == "__main__": | |
| logging.basicConfig(level=logging.INFO, format='%(asctime)s %(message)s') | |
| import sys | |
| port = int(sys.argv[1]) | |
| run(port) |
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