Viewing file:  monitor_client.py (3.2 KB) -rw-r--r--
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# -*- Mode: Python -*-
# monitor client, unix version.
import asyncore
import asynchat
import socket
import string
import sys
import os
import md5
class stdin_channel (asyncore.file_dispatcher):
def handle_read (self):
data = self.recv(512)
if not data:
print '\nclosed.'
self.sock_channel.close()
try:
self.close()
except:
pass
data = string.replace(data, '\n', '\r\n')
self.sock_channel.push (data)
def writable (self):
return 0
def log (self, *ignore):
pass
class monitor_client (asynchat.async_chat):
def __init__ (self, password, addr=('',8023), socket_type=socket.AF_INET):
asynchat.async_chat.__init__ (self)
self.create_socket (socket_type, socket.SOCK_STREAM)
self.terminator = '\r\n'
self.connect (addr)
self.sent_auth = 0
self.timestamp = ''
self.password = password
def collect_incoming_data (self, data):
if not self.sent_auth:
self.timestamp = self.timestamp + data
else:
sys.stdout.write (data)
sys.stdout.flush()
def found_terminator (self):
if not self.sent_auth:
self.push (hex_digest (self.timestamp + self.password) + '\r\n')
self.sent_auth = 1
else:
print
def handle_close (self):
# close all the channels, which will make the standard main
# loop exit.
map (lambda x: x.close(), asyncore.socket_map.values())
def log (self, *ignore):
pass
class encrypted_monitor_client (monitor_client):
"Wrap push() and recv() with a stream cipher"
def init_cipher (self, cipher, key):
self.outgoing = cipher.new (key)
self.incoming = cipher.new (key)
def push (self, data):
# push the encrypted data instead
return monitor_client.push (self, self.outgoing.encrypt (data))
def recv (self, block_size):
data = monitor_client.recv (self, block_size)
if data:
return self.incoming.decrypt (data)
else:
return data
def hex_digest (s):
m = md5.md5()
m.update (s)
return string.join (
map (lambda x: hex (ord (x))[2:], map (None, m.digest())),
'',
)
if __name__ == '__main__':
if len(sys.argv) == 1:
print 'Usage: %s host port' % sys.argv[0]
sys.exit(0)
if ('-e' in sys.argv):
encrypt = 1
sys.argv.remove ('-e')
else:
encrypt = 0
sys.stderr.write ('Enter Password: ')
sys.stderr.flush()
try:
os.system ('stty -echo')
p = raw_input()
print
finally:
os.system ('stty echo')
stdin = stdin_channel (0)
if len(sys.argv) > 1:
if encrypt:
client = encrypted_monitor_client (p, (sys.argv[1], string.atoi (sys.argv[2])))
import sapphire
client.init_cipher (sapphire, p)
else:
client = monitor_client (p, (sys.argv[1], string.atoi (sys.argv[2])))
else:
# default to local host, 'standard' port
client = monitor_client (p)
stdin.sock_channel = client
asyncore.loop()
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