[SVN] initial commit after SVN rebirth;

[SVN] bump to version 2.0
[UPD] now transport working with telethon 0.15.5 and sleekxmpp 1.3.2
[FIX] fixed everlasting authorization requests. if you got deauth message — ignore it, FROM subscription is enough.
[ADD] implemented roster exchange via XEP-0144
[ADD] we will send authorization request when unknown contact sent us a message
[ADD] correct presence handling for transport and users
[ADD] fixed presence spam (by default, we updating presence once for 60 seconds -- look at `status_update_interval` in mtproto.py)
[ADD] we will automatically connect to all actual sessions after transport start

start.py

@@ -0,0 +1,73 @@
+import xmpp_tg
+import logging
+import logging.handlers
+import os
+import sys
+import signal
+from config import CONFIG
+import telethon
+import sleekxmpp
+
+xmpp_logger = logging.getLogger('sleekxmpp')
+
+
+class StreamToLogger:
+    """
+    Прикидывается файловым объектом. Нужен для перехвата стандартных потоков ввода-вывода.
+    """
+    def __init__(self, logger, level=logging.INFO, old_out=None):
+        self.logger = logger
+        self.level = level
+        self.old_out = old_out
+        self.linebuf = []
+        self._buffer = ''
+        self._prev = None
+
+    def write(self, buf):
+        if self._prev == buf == '\n':  # Надо на буфер переделывать
+            self._prev = buf
+            buf = ''
+        else:
+            self._prev = buf
+        if buf != '\n':
+            self.logger.log(self.level, buf)
+
+        if self.old_out:
+            self.old_out.write(buf)
+
+    def flush(self):
+        pass
+
+
+# Настраиваем логгирование
+logging.basicConfig(
+    level=logging.DEBUG if CONFIG['debug'] else logging.INFO,
+    format='%(asctime)s :: %(levelname)s:%(name)s :: %(message)s',
+    datefmt='%m/%d/%Y %I:%M:%S %p',
+    handlers=[logging.handlers.RotatingFileHandler(filename='gate.log'), logging.StreamHandler(sys.stdout)]
+)
+
+# Создаем логгеры и перехватчики для STDOUT/STDERR
+logger_stdout = logging.getLogger('__stdout')
+sys.stdout = StreamToLogger(logger_stdout, logging.INFO)
+
+logger_stderr = logging.getLogger('__stderr')
+sys.stderr = StreamToLogger(logger_stderr, logging.ERROR)
+
+logging.getLogger().log(logging.INFO, '~'*81)
+logging.getLogger().log(logging.INFO, ' RESTART '*9)
+logging.getLogger().log(logging.INFO, '~'*81)
+print('----------------------------------------------------------------------')
+print('---             Telegram (MTProto) <---> XMPP Gateway              ---')
+print('----------------------------------------------------------------------')
+print()
+print('Starting...')
+print('Gate build: rev{}'.format(xmpp_tg.__version__))
+print('Process pid: {}'.format(os.getpid()))
+print('Using Telethon v{} and SleekXMPP v{}'.format(telethon.TelegramClient.__version__, sleekxmpp.__version__))
+print()
+
+gate = xmpp_tg.XMPPTelegram(CONFIG)
+signal.signal(signal.SIGINT, gate.handle_interrupt)
+gate.connect()
+gate.process()