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			478 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			478 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
| #!/usr/bin/env python
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| #
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| # Copyright (C) 2013 Permabit, Inc.
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| # Copyright (C) 2013--2014 Zulip, Inc.
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| #
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| # Permission is hereby granted, free of charge, to any person
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| # obtaining a copy of this software and associated documentation files
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| # (the "Software"), to deal in the Software without restriction,
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| # including without limitation the rights to use, copy, modify, merge,
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| # publish, distribute, sublicense, and/or sell copies of the Software,
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| # and to permit persons to whom the Software is furnished to do so,
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| # subject to the following conditions:
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| #
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| # The above copyright notice and this permission notice shall be
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| # included in all copies or substantial portions of the Software.
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| #
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| # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| # EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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| # MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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| # BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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| # ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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| # SOFTWARE.
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| 
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| # The following is a table showing which kinds of messages are handled by the
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| # mirror in each mode:
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| #
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| #     Message origin/type --> |  Jabber  |   Zulip
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| #  Mode/sender-,              +-----+----+--------+----
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| #              V              | MUC | PM | stream | PM
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| # --------------+-------------+-----+----+--------+----
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| #               | other sender|     | x  |        |
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| # personal mode +-------------+-----+----+--------+----
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| #               | self sender |     | x  |   x    | x
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| # ------------- +-------------+-----+----+--------+----
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| #               | other sender|  x  |    |        |
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| # public mode   +-------------+-----+----+--------+----
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| #               | self sender |     |    |        |
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| from typing import Set
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| 
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| import logging
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| import threading
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| import optparse
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| 
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| from sleekxmpp import ClientXMPP, InvalidJID, JID
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| from sleekxmpp.stanza import Message as JabberMessage
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| from sleekxmpp.exceptions import IqError, IqTimeout
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| from six.moves.configparser import SafeConfigParser
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| import getpass
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| import os
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| import sys
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| import zulip
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| from zulip import Client
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| import re
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| from typing import Any, Callable
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| 
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| __version__ = "1.1"
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| 
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| def room_to_stream(room):
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|     # type: (str) -> str
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|     return room + "/xmpp"
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| 
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| def stream_to_room(stream):
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|     # type: (str) -> str
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|     return stream.lower().rpartition("/xmpp")[0]
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| 
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| def jid_to_zulip(jid):
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|     # type: (JID) -> str
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|     suffix = ''
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|     if not jid.username.endswith("-bot"):
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|         suffix = options.zulip_email_suffix
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|     return "%s%s@%s" % (jid.username, suffix, options.zulip_domain)
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| 
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| def zulip_to_jid(email, jabber_domain):
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|     # type: (str, str) -> JID
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|     jid = JID(email, domain=jabber_domain)
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|     if (options.zulip_email_suffix and
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|         options.zulip_email_suffix in jid.username and
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|             not jid.username.endswith("-bot")):
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|         jid.username = jid.username.rpartition(options.zulip_email_suffix)[0]
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|     return jid
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| 
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| class JabberToZulipBot(ClientXMPP):
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|     def __init__(self, jid, password, rooms):
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|         # type: (JID, str, List[str]) -> None
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|         if jid.resource:
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|             self.nick = jid.resource
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|         else:
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|             self.nick = jid.username
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|             jid.resource = "zulip"
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|         ClientXMPP.__init__(self, jid, password)
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|         self.rooms = set() # type: Set[str]
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|         self.rooms_to_join = rooms
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|         self.add_event_handler("session_start", self.session_start)
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|         self.add_event_handler("message", self.message)
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|         self.zulip = None # type: Client
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|         self.use_ipv6 = False
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| 
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|         self.register_plugin('xep_0045') # Jabber chatrooms
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|         self.register_plugin('xep_0199') # XMPP Ping
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| 
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|     def set_zulip_client(self, zulipToJabberClient):
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|         # type: (ZulipToJabberBot) -> None
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|         self.zulipToJabber = zulipToJabberClient
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| 
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|     def session_start(self, event):
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|         # type: (Dict[str, Any]) -> None
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|         self.get_roster()
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|         self.send_presence()
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|         for room in self.rooms_to_join:
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|             self.join_muc(room)
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| 
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|     def join_muc(self, room):
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|         # type: (str) -> None
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|         if room in self.rooms:
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|             return
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|         logging.debug("Joining " + room)
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|         self.rooms.add(room)
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|         muc_jid = JID(local=room, domain=options.conference_domain)
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|         xep0045 = self.plugin['xep_0045']
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|         try:
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|             xep0045.joinMUC(muc_jid, self.nick, wait=True)
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|         except InvalidJID:
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|             logging.error("Could not join room: " + str(muc_jid))
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|             return
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| 
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|         # Configure the room.  Really, we should only do this if the room is
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|         # newly created.
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|         form = None
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|         try:
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|             form = xep0045.getRoomConfig(muc_jid)
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|         except ValueError:
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|             pass
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|         if form:
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|             xep0045.configureRoom(muc_jid, form)
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|         else:
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|             logging.error("Could not configure room: " + str(muc_jid))
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| 
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|     def leave_muc(self, room):
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|         # type: (str) -> None
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|         if room not in self.rooms:
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|             return
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|         logging.debug("Leaving " + room)
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|         self.rooms.remove(room)
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|         muc_jid = JID(local=room, domain=options.conference_domain)
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|         self.plugin['xep_0045'].leaveMUC(muc_jid, self.nick)
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| 
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|     def message(self, msg):
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|         # type: (JabberMessage) -> Any
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|         try:
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|             if msg["type"] == "groupchat":
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|                 return self.group(msg)
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|             elif msg["type"] == "chat":
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|                 return self.private(msg)
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|             else:
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|                 logging.warning("Got unexpected message type")
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|                 logging.warning(msg)
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|         except Exception:
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|             logging.exception("Error forwarding Jabber => Zulip")
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| 
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|     def private(self, msg):
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|         # type: (JabberMessage) -> None
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|         if options.mode == 'public' or msg['thread'] == u'\u1FFFE':
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|             return
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|         sender = jid_to_zulip(msg["from"])
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|         recipient = jid_to_zulip(msg["to"])
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| 
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|         zulip_message = dict(
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|             sender = sender,
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|             type = "private",
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|             to = recipient,
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|             content = msg["body"],
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|         )
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|         ret = self.zulipToJabber.client.send_message(zulip_message)
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|         if ret.get("result") != "success":
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|             logging.error(str(ret))
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| 
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|     def group(self, msg):
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|         # type: (JabberMessage) -> None
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|         if options.mode == 'personal' or msg["thread"] == u'\u1FFFE':
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|             return
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| 
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|         subject = msg["subject"]
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|         if len(subject) == 0:
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|             subject = "(no topic)"
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|         stream = room_to_stream(msg['from'].local)
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|         sender_nick = msg.get_mucnick()
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|         if not sender_nick:
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|             # Messages from the room itself have no nickname.  We should not try
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|             # to mirror these
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|             return
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|         jid = self.nickname_to_jid(msg.get_mucroom(), sender_nick)
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|         sender = jid_to_zulip(jid)
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|         zulip_message = dict(
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|             forged = "yes",
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|             sender = sender,
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|             type = "stream",
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|             subject = subject,
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|             to = stream,
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|             content = msg["body"],
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|         )
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|         ret = self.zulipToJabber.client.send_message(zulip_message)
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|         if ret.get("result") != "success":
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|             logging.error(str(ret))
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| 
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|     def nickname_to_jid(self, room, nick):
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|         # type: (str, str) -> JID
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|         jid = self.plugin['xep_0045'].getJidProperty(room, nick, "jid")
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|         if (jid is None or jid == ''):
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|             return JID(local=nick.replace(' ', ''), domain=self.boundjid.domain)
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|         else:
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|             return jid
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| 
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| class ZulipToJabberBot(object):
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|     def __init__(self, zulip_client):
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|         # type: (Client) -> None
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|         self.client = zulip_client
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|         self.jabber = None # type: JabberToZulipBot
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| 
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|     def set_jabber_client(self, client):
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|         # type: (JabberToZulipBot) -> None
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|         self.jabber = client
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| 
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|     def process_event(self, event):
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|         # type: (Dict[str, Any]) -> None
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|         if event['type'] == 'message':
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|             message = event["message"]
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|             if message['sender_email'] != self.client.email:
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|                 return
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| 
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|             try:
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|                 if message['type'] == 'stream':
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|                     self.stream_message(message)
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|                 elif message['type'] == 'private':
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|                     self.private_message(message)
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|             except:
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|                 logging.exception("Exception forwarding Zulip => Jabber")
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|         elif event['type'] == 'subscription':
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|             self.process_subscription(event)
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|         elif event['type'] == 'stream':
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|             self.process_stream(event)
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| 
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|     def stream_message(self, msg):
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|         # type: (Dict[str, str]) -> None
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|         stream = msg['display_recipient']
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|         if not stream.endswith("/xmpp"):
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|             return
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| 
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|         room = stream_to_room(stream)
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|         jabber_recipient = JID(local=room, domain=options.conference_domain)
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|         outgoing = self.jabber.make_message(
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|             mto   = jabber_recipient,
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|             mbody = msg['content'],
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|             mtype = 'groupchat')
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|         outgoing['thread'] = u'\u1FFFE'
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|         outgoing.send()
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| 
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|     def private_message(self, msg):
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|         # type: (Dict[str, Any]) -> None
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|         for recipient in msg['display_recipient']:
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|             if recipient["email"] == self.client.email:
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|                 continue
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|             if not recipient["is_mirror_dummy"]:
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|                 continue
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|             recip_email = recipient['email']
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|             jabber_recipient = zulip_to_jid(recip_email, self.jabber.boundjid.domain)
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|             outgoing = self.jabber.make_message(
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|                 mto   = jabber_recipient,
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|                 mbody = msg['content'],
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|                 mtype = 'chat')
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|             outgoing['thread'] = u'\u1FFFE'
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|             outgoing.send()
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| 
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|     def process_subscription(self, event):
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|         # type: (Dict[str, Any]) -> None
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|         if event['op'] == 'add':
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|             streams = [s['name'].lower() for s in event['subscriptions']]
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|             streams = [s for s in streams if s.endswith("/xmpp")]
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|             for stream in streams:
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|                 self.jabber.join_muc(stream_to_room(stream))
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|         if event['op'] == 'remove':
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|             streams = [s['name'].lower() for s in event['subscriptions']]
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|             streams = [s for s in streams if s.endswith("/xmpp")]
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|             for stream in streams:
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|                 self.jabber.leave_muc(stream_to_room(stream))
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| 
 | |
|     def process_stream(self, event):
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|         # type: (Dict[str, Any]) -> None
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|         if event['op'] == 'occupy':
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|             streams = [s['name'].lower() for s in event['streams']]
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|             streams = [s for s in streams if s.endswith("/xmpp")]
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|             for stream in streams:
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|                 self.jabber.join_muc(stream_to_room(stream))
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|         if event['op'] == 'vacate':
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|             streams = [s['name'].lower() for s in event['streams']]
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|             streams = [s for s in streams if s.endswith("/xmpp")]
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|             for stream in streams:
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|                 self.jabber.leave_muc(stream_to_room(stream))
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| 
 | |
| def get_rooms(zulipToJabber):
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|     # type: (ZulipToJabberBot) -> List[str]
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|     def get_stream_infos(key, method):
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|         # type: (str, Callable) -> Any
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|         ret = method()
 | |
|         if ret.get("result") != "success":
 | |
|             logging.error(ret)
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|             sys.exit("Could not get initial list of Zulip %s" % (key,))
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|         return ret[key]
 | |
| 
 | |
|     if options.mode == 'public':
 | |
|         stream_infos = get_stream_infos("streams", zulipToJabber.client.get_streams)
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|     else:
 | |
|         stream_infos = get_stream_infos("subscriptions", zulipToJabber.client.list_subscriptions)
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| 
 | |
|     rooms = [] # type: List[str]
 | |
|     for stream_info in stream_infos:
 | |
|             stream = stream_info['name']
 | |
|             if stream.endswith("/xmpp"):
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|                 rooms.append(stream_to_room(stream))
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|     return rooms
 | |
| 
 | |
| def config_error(msg):
 | |
|     # type: (str) -> None
 | |
|     sys.stderr.write("%s\n" % (msg,))
 | |
|     sys.exit(2)
 | |
| 
 | |
| if __name__ == '__main__':
 | |
|     parser = optparse.OptionParser(
 | |
|         epilog='''Most general and Jabber configuration options may also be specified in the
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| zulip configuration file under the jabber_mirror section (exceptions are noted
 | |
| in their help sections).  Keys have the same name as options with hyphens
 | |
| replaced with underscores.  Zulip configuration options go in the api section,
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| as normal.'''.replace("\n", " ")
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|     )
 | |
|     parser.add_option(
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|         '--mode',
 | |
|         default=None,
 | |
|         action='store',
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|         help='''Which mode to run in.  Valid options are "personal" and "public".  In
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| "personal" mode, the mirror uses an individual users' credentials and mirrors
 | |
| all messages they send on Zulip to Jabber and all private Jabber messages to
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| Zulip.  In "public" mode, the mirror uses the credentials for a dedicated mirror
 | |
| user and mirrors messages sent to Jabber rooms to Zulip.  Defaults to
 | |
| "personal"'''.replace("\n", " "))
 | |
|     parser.add_option(
 | |
|         '--zulip-email-suffix',
 | |
|         default=None,
 | |
|         action='store',
 | |
|         help='''Add the specified suffix to the local part of email addresses constructed
 | |
| from JIDs and nicks before sending requests to the Zulip server, and remove the
 | |
| suffix before sending requests to the Jabber server.  For example, specifying
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| "+foo" will cause messages that are sent to the "bar" room by nickname "qux" to
 | |
| be mirrored to the "bar/xmpp" stream in Zulip by user "qux+foo@example.com". This
 | |
| option does not affect login credentials.'''.replace("\n", " "))
 | |
|     parser.add_option('-d', '--debug',
 | |
|                       help='set logging to DEBUG.  Can not be set via config file.',
 | |
|                       action='store_const',
 | |
|                       dest='log_level',
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|                       const=logging.DEBUG,
 | |
|                       default=logging.INFO)
 | |
| 
 | |
|     jabber_group = optparse.OptionGroup(parser, "Jabber configuration")
 | |
|     jabber_group.add_option(
 | |
|         '--jid',
 | |
|         default=None,
 | |
|         action='store',
 | |
|         help="Your Jabber JID.  If a resource is specified, "
 | |
|              "it will be used as the nickname when joining MUCs.  "
 | |
|              "Specifying the nickname is mostly useful if you want "
 | |
|              "to run the public mirror from a regular user instead of "
 | |
|              "from a dedicated account.")
 | |
|     jabber_group.add_option('--jabber-password',
 | |
|                             default=None,
 | |
|                             action='store',
 | |
|                             help="Your Jabber password")
 | |
|     jabber_group.add_option('--conference-domain',
 | |
|                             default=None,
 | |
|                             action='store',
 | |
|                             help="Your Jabber conference domain (E.g. conference.jabber.example.com).  "
 | |
|                                  "If not specifed, \"conference.\" will be prepended to your JID's domain.")
 | |
|     jabber_group.add_option('--no-use-tls',
 | |
|                             default=None,
 | |
|                             action='store_true')
 | |
|     jabber_group.add_option('--jabber-server-address',
 | |
|                             default=None,
 | |
|                             action='store',
 | |
|                             help="The hostname of your Jabber server. This is only needed if "
 | |
|                             "your server is missing SRV records")
 | |
|     jabber_group.add_option('--jabber-server-port',
 | |
|                             default='5222',
 | |
|                             action='store',
 | |
|                             help="The port of your Jabber server. This is only needed if "
 | |
|                             "your server is missing SRV records")
 | |
| 
 | |
|     parser.add_option_group(jabber_group)
 | |
|     parser.add_option_group(zulip.generate_option_group(parser, "zulip-"))
 | |
|     (options, args) = parser.parse_args()
 | |
| 
 | |
|     logging.basicConfig(level=options.log_level,
 | |
|                         format='%(levelname)-8s %(message)s')
 | |
| 
 | |
|     if options.zulip_config_file is None:
 | |
|         config_file = zulip.get_default_config_filename()
 | |
|     else:
 | |
|         config_file = options.zulip_config_file
 | |
| 
 | |
|     config = SafeConfigParser()
 | |
|     try:
 | |
|         with open(config_file, 'r') as f:
 | |
|             config.readfp(f, config_file)
 | |
|     except IOError:
 | |
|         pass
 | |
|     for option in ("jid", "jabber_password", "conference_domain", "mode", "zulip_email_suffix",
 | |
|                    "jabber_server_address", "jabber_server_port"):
 | |
|         if (getattr(options, option) is None and
 | |
|                 config.has_option("jabber_mirror", option)):
 | |
|             setattr(options, option, config.get("jabber_mirror", option))
 | |
| 
 | |
|     for option in ("no_use_tls",):
 | |
|         if getattr(options, option) is None:
 | |
|             if config.has_option("jabber_mirror", option):
 | |
|                 setattr(options, option, config.getboolean("jabber_mirror", option))
 | |
|             else:
 | |
|                 setattr(options, option, False)
 | |
| 
 | |
|     if options.mode is None:
 | |
|         options.mode = "personal"
 | |
| 
 | |
|     if options.zulip_email_suffix is None:
 | |
|         options.zulip_email_suffix = ''
 | |
| 
 | |
|     if options.mode not in ('public', 'personal'):
 | |
|         config_error("Bad value for --mode: must be one of 'public' or 'personal'")
 | |
| 
 | |
|     if None in (options.jid, options.jabber_password):
 | |
|         config_error("You must specify your Jabber JID and Jabber password either "
 | |
|                      "in the Zulip configuration file or on the commandline")
 | |
| 
 | |
|     zulipToJabber = ZulipToJabberBot(zulip.init_from_options(options, "JabberMirror/" + __version__))
 | |
|     # This won't work for open realms that don't have a consistent domain
 | |
|     options.zulip_domain = zulipToJabber.client.email.partition('@')[-1]
 | |
| 
 | |
|     try:
 | |
|         jid = JID(options.jid)
 | |
|     except InvalidJID as e:
 | |
|         config_error("Bad JID: %s: %s" % (options.jid, e.message))
 | |
| 
 | |
|     if options.conference_domain is None:
 | |
|         options.conference_domain = "conference.%s" % (jid.domain,)
 | |
| 
 | |
|     xmpp = JabberToZulipBot(jid, options.jabber_password, get_rooms(zulipToJabber))
 | |
| 
 | |
|     address = None
 | |
|     if options.jabber_server_address:
 | |
|         address = (options.jabber_server_address, options.jabber_server_port)
 | |
| 
 | |
|     if not xmpp.connect(use_tls=not options.no_use_tls, address=address):
 | |
|         sys.exit("Unable to connect to Jabber server")
 | |
| 
 | |
|     xmpp.set_zulip_client(zulipToJabber)
 | |
|     zulipToJabber.set_jabber_client(xmpp)
 | |
| 
 | |
|     xmpp.process(block=False)
 | |
|     if options.mode == 'public':
 | |
|         event_types = ['stream']
 | |
|     else:
 | |
|         event_types = ['message', 'subscription']
 | |
| 
 | |
|     try:
 | |
|         logging.info("Connecting to Zulip.")
 | |
|         zulipToJabber.client.call_on_each_event(zulipToJabber.process_event,
 | |
|                                                 event_types=event_types)
 | |
|     except BaseException as e:
 | |
|         logging.exception("Exception in main loop")
 | |
|         xmpp.abort()
 | |
|         sys.exit(1)
 |