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122 lines
3.0 KiB
Python
122 lines
3.0 KiB
Python
# -*- tab-width: 4; indent-tabs-mode: t -*-
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import presence
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import avahi
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ACTION_BUDDY_ADDED = "added"
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ACTION_BUDDY_REMOVED = "removed"
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class Buddy(object):
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def __init__(self, nick, realname, servicename, host, address, port, key=None):
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self._nick = nick
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self._realname = realname
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self._servicename = servicename
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self._key = key
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self._host = host
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self._address = str(address)
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self._port = int(port)
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self._chat = None
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def set_chat(self, chat):
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self._chat = chat
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def chat(self):
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return self._chat
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def nick(self):
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return self._nick
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def realname(self):
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return self._realname
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def servicename(self):
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return self._servicename
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def host(self):
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return self._host
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def address(self):
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return self._address
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def port(self):
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return self._port
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def key(self):
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return self._key
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class BuddyList(object):
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""" Manage a list of buddies """
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def __init__(self, servicename):
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self._listeners = []
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self._buddies = {}
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self._servicename = servicename
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self._pdiscovery = presence.PresenceDiscovery()
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self._pdiscovery.add_service_listener(self._on_service_change)
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def start(self):
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self._pdiscovery.start()
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def add_buddy_listener(self, listener):
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self._listeners.append(listener)
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def _add_buddy(self, host, address, port, servicename, data):
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# Ignore ourselves
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if servicename == self._servicename:
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return
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if len(data) > 0 and 'name' in data.keys():
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buddy = self._find_buddy_by_service_name(servicename)
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if not buddy:
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buddy = Buddy(data['name'], data['realname'], servicename, host, address, port)
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self._buddies[data['name']] = buddy
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self._notify_listeners(ACTION_BUDDY_ADDED, buddy)
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def _remove_buddy(self, buddy):
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nick = buddy.nick()
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self._notify_listeners(ACTION_BUDDY_REMOVED, buddy)
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del self._buddies[nick]
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def _find_buddy_by_service_name(self, servicename):
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for buddy in self._buddies.values():
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if buddy.servicename() == servicename:
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return buddy
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return None
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def find_buddy_by_address(self, address):
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for buddy_name in self._buddies.keys():
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buddy = self._buddies[buddy_name]
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if buddy.address() == address:
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return buddy
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return None
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def _notify_listeners(self, action, buddy):
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for listener in self._listeners:
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listener(action, buddy)
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def _on_service_change(self, action, interface, protocol, name, stype, domain, flags):
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if stype != presence.OLPC_CHAT_SERVICE:
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return
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if action == presence.ACTION_SERVICE_NEW:
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self._pdiscovery.resolve_service(interface, protocol, name, stype, domain, self._on_service_resolved)
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elif action == presence.ACTION_SERVICE_REMOVED:
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buddy = self._find_buddy_by_service_name(name)
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if buddy:
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self._remove_buddy(buddy)
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def _pair_to_dict(self, l):
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res = {}
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for el in l:
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tmp = el.split('=', 1)
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if len(tmp) > 1:
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res[tmp[0]] = tmp[1]
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else:
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res[tmp[0]] = ''
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return res
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def _on_service_resolved(self, interface, protocol, name, stype, domain, host, aprotocol, address, port, txt, flags):
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data = self._pair_to_dict(avahi.txt_array_to_string_array(txt))
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self._add_buddy(host, address, port, name, data)
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