#!/usr/bin/env python2.7 # # skyped.py # # Copyright (c) 2007, 2008, 2009, 2010 by Miklos Vajna # # This program 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 2 of the License, or # (at your option) any later version. # # This program 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 this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, # USA. # import sys import os import signal import locale import time import gobject import socket import getopt import Skype4Py import hashlib from ConfigParser import ConfigParser, NoOptionError from traceback import print_exception import ssl __version__ = "0.1.1" def eh(type, value, tb): if type != KeyboardInterrupt: print_exception(type, value, tb) gobject.MainLoop().quit() # shut down client if it's running try: skype.skype.Client.Shutdown() except NameError: pass sys.exit("Exiting.") sys.excepthook = eh def input_handler(fd, io_condition): global options if options.buf: for i in options.buf: skype.send(i.strip()) options.buf = None else: try: input = fd.recv(1024) except Exception, s: dprint("Warning, receiving 1024 bytes failed (%s)." % s) fd.close() return False for i in input.split("\n"): skype.send(i.strip()) return True def skype_idle_handler(skype): try: c = skype.skype.Command("PING", Block=True) skype.skype.SendCommand(c) except Skype4Py.SkypeAPIError, s: dprint("Warning, pinging Skype failed (%s)." % (s)) return True def bitlbee_idle_handler(skype): if options.conn: try: e = "PING" options.conn.send("%s\n" % e) except Exception, s: dprint("Warning, sending '%s' failed (%s)." % (e, s)) options.conn.close() return True def server(host, port): global options sock = socket.socket() sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.bind((host, port)) sock.listen(1) gobject.io_add_watch(sock, gobject.IO_IN, listener) def listener(sock, *args): global options rawsock, addr = sock.accept() options.conn = ssl.wrap_socket(rawsock, server_side=True, certfile=options.config.sslcert, keyfile=options.config.sslkey, ssl_version=ssl.PROTOCOL_TLSv1) if hasattr(options.conn, 'handshake'): try: options.conn.handshake() except Exception: dprint("Warning, handshake failed, closing connection.") return False ret = 0 try: line = options.conn.recv(1024) if line.startswith("USERNAME") and line.split(' ')[1].strip() == options.config.username: ret += 1 line = options.conn.recv(1024) if line.startswith("PASSWORD") and hashlib.sha1(line.split(' ')[1].strip()).hexdigest() == options.config.password: ret += 1 except Exception, s: dprint("Warning, receiving 1024 bytes failed (%s)." % s) options.conn.close() return False if ret == 2: dprint("Username and password OK.") options.conn.send("PASSWORD OK\n") gobject.io_add_watch(options.conn, gobject.IO_IN, input_handler) return True else: dprint("Username and/or password WRONG.") options.conn.send("PASSWORD KO\n") return False def dprint(msg): from time import strftime global options now = strftime("%Y-%m-%d %H:%M:%S") if options.debug: print now + ": " + msg if options.log: sock = open(options.log, "a") sock.write("%s: %s\n" % (now, msg)) sock.close() class SkypeApi: def __init__(self): self.skype = Skype4Py.Skype() self.skype.OnNotify = self.recv self.skype.Client.Start() def recv(self, msg_text): global options if msg_text == "PONG": return if "\n" in msg_text: # crappy skype prefixes only the first line for # multiline messages so we need to do so for the other # lines, too. this is something like: # 'CHATMESSAGE id BODY first line\nsecond line' -> # 'CHATMESSAGE id BODY first line\nCHATMESSAGE id BODY second line' prefix = " ".join(msg_text.split(" ")[:3]) msg_text = ["%s %s" % (prefix, i) for i in " ".join(msg_text.split(" ")[3:]).split("\n")] else: msg_text = [msg_text] for i in msg_text: # use utf-8 here to solve the following problem: # people use env vars like LC_ALL=en_US (latin1) then # they complain about why can't they receive latin2 # messages.. so here it is: always use utf-8 then # everybody will be happy e = i.encode('UTF-8') dprint('<< ' + e) if options.conn: try: options.conn.send(e + "\n") except Exception, s: dprint("Warning, sending '%s' failed (%s)." % (e, s)) options.conn.close() def send(self, msg_text): if not len(msg_text) or msg_text == "PONG": return try: encoding = locale.getdefaultlocale()[1] if not encoding: raise ValueError e = msg_text.decode(encoding) except ValueError: e = msg_text.decode('UTF-8') dprint('>> ' + e) try: c = self.skype.Command(e, Block=True) self.skype.SendCommand(c) self.recv(c.Reply) except Skype4Py.SkypeError: pass except Skype4Py.SkypeAPIError, s: dprint("Warning, sending '%s' failed (%s)." % (e, s)) class Options: def __init__(self): self.cfgpath = os.path.join(os.environ['HOME'], ".skyped", "skyped.conf") # for backwards compatibility self.syscfgpath = "/usr/local/etc/skyped/skyped.conf" if os.path.exists(self.syscfgpath): self.cfgpath = self.syscfgpath self.daemon = True self.debug = False self.help = False self.host = "0.0.0.0" self.log = None self.port = None self.version = False # well, this is a bit hackish. we store the socket of the last connected client # here and notify it. maybe later notify all connected clients? self.conn = None # this will be read first by the input handler self.buf = None def usage(self, ret): print """Usage: skyped [OPTION]... skyped is a daemon that acts as a tcp server on top of a Skype instance. Options: -c --config path to configuration file (default: %s) -d --debug enable debug messages -h --help this help -H --host set the tcp host (default: %s) -l --log set the log file in background mode (default: none) -n --nofork don't run as daemon in the background -p --port set the tcp port (default: %s) -v --version display version information""" % (self.cfgpath, self.host, self.port) sys.exit(ret) if __name__=='__main__': options = Options() try: opts, args = getopt.getopt(sys.argv[1:], "c:dhH:l:np:v", ["config=", "debug", "help", "host=", "log=", "nofork", "port=", "version"]) except getopt.GetoptError: options.usage(1) for opt, arg in opts: if opt in ("-c", "--config"): options.cfgpath = arg elif opt in ("-d", "--debug"): options.debug = True elif opt in ("-h", "--help"): options.help = True elif opt in ("-H", "--host"): options.host = arg elif opt in ("-l", "--log"): options.log = arg elif opt in ("-n", "--nofork"): options.daemon = False elif opt in ("-p", "--port"): options.port = int(arg) elif opt in ("-v", "--version"): options.version = True if options.help: options.usage(0) elif options.version: print "skyped %s" % __version__ sys.exit(0) # parse our config if not os.path.exists(options.cfgpath): print "Can't find configuration file at '%s'." % options.cfgpath print "Use the -c option to specify an alternate one." sys.exit(1) options.config = ConfigParser() options.config.read(options.cfgpath) options.config.username = options.config.get('skyped', 'username').split('#')[0] options.config.password = options.config.get('skyped', 'password').split('#')[0] options.config.sslkey = os.path.expanduser(options.config.get('skyped', 'key').split('#')[0]) options.config.sslcert = os.path.expanduser(options.config.get('skyped', 'cert').split('#')[0]) # hack: we have to parse the parameters first to locate the # config file but the -p option should overwrite the value from # the config file try: options.config.port = int(options.config.get('skyped', 'port').split('#')[0]) if not options.port: options.port = options.config.port except NoOptionError: pass if not options.port: options.port = 2727 dprint("Parsing config file '%s' done, username is '%s'." % (options.cfgpath, options.config.username)) if options.daemon: pid = os.fork() if pid == 0: nullin = file(os.devnull, 'r') nullout = file(os.devnull, 'w') os.dup2(nullin.fileno(), sys.stdin.fileno()) os.dup2(nullout.fileno(), sys.stdout.fileno()) os.dup2(nullout.fileno(), sys.stderr.fileno()) else: print 'skyped is started on port %s, pid: %d' % (options.port, pid) sys.exit(0) else: dprint('skyped is started on port %s' % options.port) server(options.host, options.port) try: skype = SkypeApi() except Skype4Py.SkypeAPIError, s: sys.exit("%s. Are you sure you have started Skype?" % s) gobject.timeout_add(2000, skype_idle_handler, skype) gobject.timeout_add(60000, bitlbee_idle_handler, skype) gobject.MainLoop().run()