59 lines
1.3 KiB
Python
59 lines
1.3 KiB
Python
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#!/usr/bin/env python3
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"""
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Remote python server.
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Execute Python commands remotely and send output back.
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WARNING: This version has a gaping security hole -- it accepts requests
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from any host on the Internet!
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"""
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import sys
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from socket import socket, AF_INET, SOCK_STREAM
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import io
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import traceback
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PORT = 4127
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BUFSIZE = 1024
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def main():
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if len(sys.argv) > 1:
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port = int(sys.argv[1])
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else:
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port = PORT
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s = socket(AF_INET, SOCK_STREAM)
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s.bind(('', port))
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s.listen(1)
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while True:
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conn, (remotehost, remoteport) = s.accept()
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print('connection from', remotehost, remoteport)
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request = b''
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while 1:
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data = conn.recv(BUFSIZE)
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if not data:
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break
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request += data
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reply = execute(request.decode())
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conn.send(reply.encode())
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conn.close()
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def execute(request):
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stdout = sys.stdout
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stderr = sys.stderr
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sys.stdout = sys.stderr = fakefile = io.StringIO()
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try:
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try:
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exec(request, {}, {})
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except:
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print()
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traceback.print_exc(100)
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finally:
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sys.stderr = stderr
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sys.stdout = stdout
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return fakefile.getvalue()
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try:
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main()
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except KeyboardInterrupt:
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pass
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