rpudb.py-old

import pudb
import sys
import socket
import struct
import fcntl
import termios
import pty

def set_trace(addr='127.0.0.1', port=4444):
    # Backup stdin and stdout before replacing them by the socket handle
    old_stdout = sys.stdout
    old_stdin = sys.stdin

    # Open a 'reusable' socket to let the webapp reload on the same port
    skt = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    skt.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
    skt.bind((addr, port))
    skt.listen(1)

    # Writes to stdout are forbidden in mod_wsgi environments
    try:
        sys.stderr.write("pudb is running on %s:%d\n" % skt.getsockname())
    except IOError:
        pass

    (clientsocket, address) = skt.accept()
    handle = clientsocket.makefile('rw')

    (master, slave) = pty.openpty()

    width = 143
    height = 39
    winsize = struct.pack("HHHH", height, width, 0, 0)
    fcntl.ioctl(slave, termios.TIOCSWINSZ, winsize)

    buf = fcntl.ioctl(slave, termios.TIOCGWINSZ, ' '*4)
    y, x = struct.unpack('hh', buf)
    print '-->', width, height, x, y

    return handle
    sys.stdout = sys.stdin = handle

    # Telnet Linemode Option
    # http://tools.ietf.org/html/rfc1184
    # IAC WONT LINEMODE IAC WILL ECHO
    sys.stdout.write(bytearray([0377, 0375, 042, 0377, 0373, 01]))
    sys.stdout.flush()

    pudb.set_trace()

if __name__ == '__main__':
    set_trace()