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|
#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# Copyright (C) 2011 Sebastien Helleu <flashcode@flashtux.org>
#
# This file is part of WeeChat, the extensible chat client.
#
# WeeChat is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# WeeChat is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with WeeChat. If not, see <http://www.gnu.org/licenses/>.
#
#
# weercd - the WeeChat flood IRC server
#
# weercd is an IRC server that is designed to test client resistance and memory
# usage (quickly detect memory leaks, for example with client scripts).
# Various IRC commands are sent in a short time (privmsg, notice, join/quit, ..)
#
# This script works with Python 2.x and 3.x.
#
# It is *STRONGLY RECOMMENDED* to connect this server with a client in a test
# environment:
# - for WeeChat, another home with: `weechat-curses --dir /tmp/weechat`
# - on a test machine, because CPU will be used a lot by client to display
# messages from weercd
# - if possible locally (ie server and client on same machine), to speed up data
# exchange between server and client.
#
# Instructions to use this server with WeeChat:
# 1. open a terminal and run server:
# python weercd.py
# 2. open another terminal and run WeeChat with home in /tmp:
# weechat-curses --dir /tmp/weechat
# 3. optional: install script(s) in /tmp/weechat/<language>/autoload/
# 4. add server and connect to it:
# /server add weercd 127.0.0.1/7777
# /connect weercd
# 5. wait some months.....
# WeeChat still not crashed and does not use 200 TB of RAM ?
# Yeah, it's stable \o/
#
import sys, socket, select, time, random, string, re
NAME = 'weercd'
VERSION = '0.4'
options = {
'host' : ['', 'Host for socket bind'],
'port' : ['7777', 'Port for socket bind'],
'debug' : ['off', 'Debug (on/off)'],
'action' : ['flood', 'Action of server: "flood" = flood client, "user" = send custom messages to client'],
'wait' : ['0', 'Time to wait before flooding client (float, in seconds)'],
'sleep' : ['0', 'Sleep for select, delay between 2 messages sent to client (float, in seconds)'],
'maxchans' : ['5', 'Max channels to join'],
'maxnicks' : ['100', 'Max nicks per channel'],
'usernotices': ['on', 'Send notices to user (on/off)'],
'channotices': ['on', 'Send notices to channels (on/off)'],
}
def usage():
"""Display usage."""
global options
print('\nUsage: %s [option=value [option=value ...]] | [-h | --help]\n' % sys.argv[0])
print(' option=value option with value (see table below)')
print(' -h, --help display this help\n')
print('Options (name, default value, description):\n')
for key in options:
v = '"%s"' % options[key][0]
print(' %-12s %-10s %s' % (key, v, options[key][1]))
print('\nOptions can be written in %s.conf, with format for each line: option=value\n' % NAME)
sys.exit(0)
def setoption(string):
"""Set option with string using format "option=value"."""
global options
items = string.strip().split('=', 1)
if len(items) == 2:
key = items[0].strip()
if not key.startswith('#'):
value = items[1].strip()
if key in options:
options[key][0] = value
else:
print('WARNING: unknown option "%s"' % key)
def getoption(option):
"""Get value of an option."""
global options
if option in options:
return options[option][0]
return None
def getdictoptions():
"""Get dict with options and values."""
global options
d = {}
for key in options:
d[key] = options[key][0]
return d
def readconfig(filename):
"""Read configuration file."""
try:
lines = open(filename, 'rb').readlines()
for line in lines:
setoption(str(line.decode('utf-8')))
except:
pass
def strrand(minlength=1, maxlength=50, spaces=False):
"""Return string with random lenght and content."""
length = random.randint(minlength, maxlength)
strspace = ''
if spaces:
strspace = ' '
return ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase + string.digits + strspace) for x in range(length))
class Client:
def __init__(self, sock, addr, **kwargs):
self.sock, self.addr = sock, addr
self.nick = ''
self.nicknumber = 0
self.channels = {}
self.lastbuf = ''
self.incount, self.outcount, self.inbytes, self.outbytes = 0, 0, 0, 0
self.quit, self.endmsg, self.endexcept = False, '', None
self.sleep = float(getoption('sleep'))
self.maxchans = int(getoption('maxchans'))
self.maxnicks = int(getoption('maxnicks'))
self.usernotices = (getoption('usernotices') == 'on')
self.channotices = (getoption('channotices') == 'on')
self.starttime = time.time()
self.connect()
if not self.quit:
action = getoption('action')
if action == 'flood':
self.acion_flood()
elif action == 'user':
self.action_user()
def send(self, data):
"""Send one message to client."""
if getoption('debug') == 'on':
print('<-- %s' % data)
msg = '%s\r\n' % data
self.outbytes += len(msg)
self.sock.send(msg.encode('UTF-8'))
self.outcount += 1
def recv(self, data):
"""Read one message from client."""
if getoption('debug') == 'on':
print('--> %s' % data)
if data.startswith('PING '):
args = data[5:]
if args[0] == ':':
args = args[1:]
self.send('PONG :%s' % args)
elif data.startswith('NICK '):
self.nick = data[5:]
elif data.startswith('PART '):
m = re.search('^PART :?(#[^ ]+)', data)
if m:
channel = m.group(1)
if channel in self.channels:
del self.channels[channel]
elif data.startswith('QUIT '):
self.quit = True
self.incount += 1
def read(self, timeout):
"""Read data from client."""
inr, outr, exceptr = select.select([self.sock], [], [], timeout)
if inr:
data = self.sock.recv(4096)
if data:
data = data.decode('UTF-8')
self.inbytes += len(data)
data = self.lastbuf + data
while 1:
pos = data.find('\r\n')
if pos < 0:
break
self.recv(data[0:pos])
data = data[pos+2:]
self.lastbuf = data
def connect(self):
"""Tell client that connection is ok."""
try:
while self.nick == '':
self.read(0.1)
self.send(':%s 001 %s :Welcome to the WeeChat IRC flood server' % (NAME, self.nick))
self.send(':%s 002 %s :Your host is %s, running version %s' % (NAME, self.nick, NAME, VERSION))
self.send(':%s 003 %s :Are you solid like a rock?' % (NAME, self.nick))
self.send(':%s 004 %s :Let\'s see!' % (NAME, self.nick))
except KeyboardInterrupt:
self.quit = True
self.endmsg = 'interrupted'
return
def chan_randnick(self, channel):
if len(self.channels[channel]) < 2:
return None
rnick = self.nick
while rnick == self.nick:
rnick = self.channels[channel][random.randint(0, len(self.channels[channel])-1)]
return rnick
def action_flood(self):
"""Yay, funny stuff here! Flood client!"""
wait = int(getoption('wait'))
if wait > 0:
print('Wait %d seconds' % wait)
time.sleep(wait)
sys.stdout.write('Flooding client..')
sys.stdout.flush()
try:
while not self.quit:
self.read(self.sleep)
# global actions
action = random.randint(1, 2)
if action == 1:
# join
if len(self.channels) < self.maxchans:
channel = '#%s' % strrand(1, 25)
if not channel in self.channels:
self.send(':%s!%s JOIN :%s' % (self.nick, self.addr[0], channel))
self.send(':%s 353 %s = %s :@%s' % (NAME, self.nick, channel, self.nick))
self.send(':%s 366 %s %s :End of /NAMES list.' % (NAME, self.nick, channel))
self.channels[channel] = [self.nick]
elif action == 2 and self.usernotices:
# notice
self.send(':%s!%s@%s NOTICE %s :%s' % (
strrand(1, 10), strrand(1, 10), strrand(1, 10), self.nick, strrand(1, 400, True)))
# actions for each channel
for channel in self.channels:
action = random.randint(1, 50)
if action >= 1 and action <= 10:
# join
if len(self.channels[channel]) < self.maxnicks:
self.nicknumber += 1
newnick = '%s%d' % (strrand(1, 5), self.nicknumber)
self.send(':%s!%s@%s JOIN :%s' % (newnick, strrand(1, 10), strrand(1, 10), channel))
self.channels[channel].append(newnick)
elif action == 11:
# part/quit
if len(self.channels[channel]) > 0:
rnick = self.chan_randnick(channel)
if rnick:
command = 'QUIT :%s' % strrand(1, 30)
if random.randint(1, 2) == 1:
command = 'PART %s' % channel
self.send(':%s!%s@%s %s' % (rnick, strrand(1, 10), strrand(1, 10), command))
self.channels[channel].remove(rnick)
elif action == 12:
# kick
if len(self.channels[channel]) > 0:
rnick1 = self.chan_randnick(channel)
rnick2 = self.chan_randnick(channel)
if rnick1 and rnick2 and rnick1 != rnick2:
self.send(':%s!%s@%s KICK %s %s :%s' % (rnick1, strrand(1, 10), strrand(1, 10), channel, rnick2, strrand (1, 50)))
self.channels[channel].remove(rnick2)
else:
# message
if len(self.channels[channel]) > 0:
rnick = self.chan_randnick(channel)
if rnick:
msg = strrand(1, 400, True)
if self.channotices and random.randint(1,100) == 100:
# notice
self.send(':%s!%s@%s NOTICE %s :%s' % (rnick, strrand(1, 10), strrand (1, 10), channel, msg))
else:
# add random highlight
if random.randint(1, 100) == 100:
msg = '%s: %s' % (self.nick, msg)
action2 = random.randint(1,50)
if action2 == 1:
# action (/me)
msg = '\x01ACTION %s\x01' % msg
elif action2 == 2:
# version
msg = '\x01VERSION\x01'
self.send(':%s!%s@%s PRIVMSG %s :%s' % (rnick, strrand(1, 10), strrand(1, 10), channel, msg))
# display progress
if self.outcount % 1000 == 0:
sys.stdout.write('.')
sys.stdout.flush()
except Exception as e:
if self.quit:
self.endmsg = 'quit received'
else:
self.endmsg = 'connection lost'
self.endexcept = e
return
except KeyboardInterrupt:
self.endmsg = 'interrupted'
return
else:
self.endmsg = 'quit received'
return
def action_user(self):
"""Send custom messages to client"""
try:
while 1:
sys.stdout.write('Message to send to client: ')
sys.stdout.flush()
message = sys.stdin.readline()
self.send(message)
except Exception as e:
self.endmsg = 'connection lost'
self.endexcept = e
return
except KeyboardInterrupt:
self.endmsg = 'interrupted'
return
def stats(self):
msgexcept = ''
if self.endexcept:
msgexcept = '(%s)' % self.endexcept
print(' %s %s' % (self.endmsg, msgexcept))
elapsed = time.time() - self.starttime
print('Elapsed: %.1fs - packets: in:%d, out:%d (%d/s) - bytes: in:%d, out: %d (%d/s)' % (
elapsed, self.incount, self.outcount, self.outcount / elapsed,
self.inbytes, self.outbytes, self.outbytes / elapsed))
if self.endmsg == 'connection lost':
print('Uh-oh! No quit received, client has crashed? Ahah \o/')
def __del__(self):
self.stats()
print('Closing connection with %s' % str(self.addr))
self.sock.close()
def main():
if len(sys.argv) > 1 and (sys.argv[1] == '-h' or sys.argv[1] == '--help'):
usage()
readconfig('%s.conf' % NAME)
for arg in sys.argv:
setoption(arg)
print('%s %s - WeeChat flood IRC server' % (NAME, VERSION))
while 1:
print('Options: %s' % getdictoptions())
print('Listening on port %s (ctrl-C to exit)' % getoption('port'))
servsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
servsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
servsock.bind((getoption('host'), int(getoption('port'))))
servsock.listen(1)
clientsock = None
addr = None
try:
clientsock, addr = servsock.accept()
except KeyboardInterrupt:
servsock.close()
return
print('Connection from %s' % str(addr))
client = Client(clientsock, addr)
del client
if __name__ == '__main__':
main()
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