865 lines
30 KiB
Python
865 lines
30 KiB
Python
## common/zeroconf/client_zeroconf.py
|
||
##
|
||
## Copyright (C) 2006 Stefan Bethge <stefan@lanpartei.de>
|
||
## 2006 Dimitur Kirov <dkirov@gmail.com>
|
||
##
|
||
## This file is part of Gajim.
|
||
##
|
||
## Gajim 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; version 3 only.
|
||
##
|
||
## Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
|
||
##
|
||
from gajim.common import app
|
||
import nbxmpp
|
||
from nbxmpp.idlequeue import IdleObject
|
||
from nbxmpp import dispatcher_nb, simplexml
|
||
from nbxmpp.plugin import *
|
||
from nbxmpp.transports_nb import DATA_RECEIVED, DATA_SENT, DATA_ERROR
|
||
from gajim.common.zeroconf import zeroconf
|
||
|
||
from nbxmpp.protocol import *
|
||
import socket
|
||
import ssl
|
||
import errno
|
||
import sys
|
||
import os
|
||
import string
|
||
from random import Random
|
||
|
||
import logging
|
||
log = logging.getLogger('gajim.c.z.client_zeroconf')
|
||
|
||
from gajim.common.zeroconf import roster_zeroconf
|
||
|
||
MAX_BUFF_LEN = 65536
|
||
TYPE_SERVER, TYPE_CLIENT = range(2)
|
||
|
||
# wait XX sec to establish a connection
|
||
CONNECT_TIMEOUT_SECONDS = 10
|
||
|
||
# after XX sec with no activity, close the stream
|
||
ACTIVITY_TIMEOUT_SECONDS = 30
|
||
|
||
class ZeroconfListener(IdleObject):
|
||
def __init__(self, port, conn_holder):
|
||
"""
|
||
Handle all incomming connections on ('0.0.0.0', port)
|
||
"""
|
||
self.port = port
|
||
self.queue_idx = -1
|
||
#~ self.queue = None
|
||
self.started = False
|
||
self._sock = None
|
||
self.fd = -1
|
||
self.caller = conn_holder.caller
|
||
self.conn_holder = conn_holder
|
||
|
||
def bind(self):
|
||
flags = socket.AI_PASSIVE
|
||
if hasattr(socket, 'AI_ADDRCONFIG'):
|
||
flags |= socket.AI_ADDRCONFIG
|
||
ai = socket.getaddrinfo(None, self.port, socket.AF_UNSPEC,
|
||
socket.SOCK_STREAM, 0, flags)[0]
|
||
self._serv = socket.socket(ai[0], ai[1])
|
||
self._serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
||
self._serv.setsockopt(socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1)
|
||
self._serv.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
|
||
if os.name == 'nt':
|
||
ver = os.sys.getwindowsversion()
|
||
if (ver[3], ver[0]) == (2, 6): # Win Vista +
|
||
# 47 is socket.IPPROTO_IPV6
|
||
# 27 is socket.IPV6_V6ONLY under windows, but not defined ...
|
||
self._serv.setsockopt(41, 27, 0)
|
||
# will fail when port is busy, or we don't have rights to bind
|
||
try:
|
||
self._serv.bind((ai[4][0], self.port))
|
||
except Exception:
|
||
# unable to bind, show error dialog
|
||
return None
|
||
self._serv.listen(socket.SOMAXCONN)
|
||
self._serv.setblocking(False)
|
||
self.fd = self._serv.fileno()
|
||
app.idlequeue.plug_idle(self, False, True)
|
||
self.started = True
|
||
|
||
def pollend(self):
|
||
"""
|
||
Called when we stop listening on (host, port)
|
||
"""
|
||
self.disconnect()
|
||
|
||
def pollin(self):
|
||
"""
|
||
Accept a new incomming connection and notify queue
|
||
"""
|
||
sock = self.accept_conn()
|
||
# loop through roster to find who has connected to us
|
||
from_jid = None
|
||
ipaddr = sock[1][0]
|
||
for jid in self.conn_holder.getRoster().keys():
|
||
entry = self.conn_holder.getRoster().getItem(jid)
|
||
for address in entry['addresses']:
|
||
if (address['address'] == ipaddr):
|
||
from_jid = jid
|
||
break
|
||
P2PClient(sock[0], [{'host': ipaddr, 'address': ipaddr, 'port': sock[1][1]}], self.conn_holder, [], from_jid)
|
||
|
||
def disconnect(self, message=''):
|
||
"""
|
||
Free all resources, we are not listening anymore
|
||
"""
|
||
log.info('Disconnecting ZeroconfListener: %s' % message)
|
||
app.idlequeue.remove_timeout(self.fd)
|
||
app.idlequeue.unplug_idle(self.fd)
|
||
self.fd = -1
|
||
self.started = False
|
||
try:
|
||
self._serv.close()
|
||
except socket.error:
|
||
pass
|
||
self.conn_holder.kill_all_connections()
|
||
|
||
def accept_conn(self):
|
||
"""
|
||
Accept a new incoming connection
|
||
"""
|
||
_sock = self._serv.accept()
|
||
_sock[0].setblocking(False)
|
||
return _sock
|
||
|
||
class P2PClient(IdleObject):
|
||
def __init__(self, _sock, addresses, conn_holder, stanzaqueue, to=None,
|
||
on_ok=None, on_not_ok=None):
|
||
self._owner = self
|
||
self.Namespace = 'jabber:client'
|
||
self.protocol_type = 'XMPP'
|
||
self.defaultNamespace = self.Namespace
|
||
self._component = 0
|
||
self._registered_name = None
|
||
self._caller = conn_holder.caller
|
||
self.conn_holder = conn_holder
|
||
self.stanzaqueue = stanzaqueue
|
||
self.to = to
|
||
#self.Server = addresses[0]['host']
|
||
self.on_ok = on_ok
|
||
self.on_not_ok = on_not_ok
|
||
self.Connection = None
|
||
self.sock_hash = None
|
||
if _sock:
|
||
self.sock_type = TYPE_SERVER
|
||
else:
|
||
self.sock_type = TYPE_CLIENT
|
||
self.fd = -1
|
||
conn = P2PConnection('', _sock, addresses, self._caller,
|
||
self.on_connect, self)
|
||
self.Server = conn.host # set Server to the last host name / address tried
|
||
if not self.conn_holder:
|
||
# An error occured, disconnect() has been called
|
||
if on_not_ok:
|
||
on_not_ok('Connection to host could not be established.')
|
||
return
|
||
self.sock_hash = conn._sock.__hash__
|
||
self.fd = conn.fd
|
||
self.conn_holder.add_connection(self, self.Server, conn.port, self.to)
|
||
# count messages in queue
|
||
for val in self.stanzaqueue:
|
||
stanza, is_message = val
|
||
if is_message:
|
||
if self.fd == -1:
|
||
if on_not_ok:
|
||
on_not_ok(
|
||
'Connection to host could not be established.')
|
||
return
|
||
thread_id = stanza.getThread()
|
||
id_ = stanza.getID()
|
||
if not id_:
|
||
id_ = self.Dispatcher.getAnID()
|
||
if self.fd in self.conn_holder.ids_of_awaiting_messages:
|
||
self.conn_holder.ids_of_awaiting_messages[self.fd].append((
|
||
id_, thread_id))
|
||
else:
|
||
self.conn_holder.ids_of_awaiting_messages[self.fd] = [(id_,
|
||
thread_id)]
|
||
|
||
self.on_responses = {}
|
||
|
||
def add_stanza(self, stanza, is_message=False):
|
||
if self.Connection:
|
||
if self.Connection.state == -1:
|
||
return False
|
||
self.send(stanza, is_message)
|
||
else:
|
||
self.stanzaqueue.append((stanza, is_message))
|
||
|
||
if is_message:
|
||
thread_id = stanza.getThread()
|
||
id_ = stanza.getID()
|
||
if not id_:
|
||
id_ = self.Dispatcher.getAnID()
|
||
if self.fd in self.conn_holder.ids_of_awaiting_messages:
|
||
self.conn_holder.ids_of_awaiting_messages[self.fd].append((id_,
|
||
thread_id))
|
||
else:
|
||
self.conn_holder.ids_of_awaiting_messages[self.fd] = [(id_,
|
||
thread_id)]
|
||
|
||
return True
|
||
|
||
def on_message_sent(self, connection_id):
|
||
id_, thread_id = \
|
||
self.conn_holder.ids_of_awaiting_messages[connection_id].pop(0)
|
||
if self.on_ok:
|
||
self.on_ok(id_)
|
||
# use on_ok only on first message. For others it's called in
|
||
# ClientZeroconf
|
||
self.on_ok = None
|
||
|
||
def on_connect(self, conn):
|
||
self.Connection = conn
|
||
self.Connection.PlugIn(self)
|
||
dispatcher_nb.Dispatcher().PlugIn(self)
|
||
self._register_handlers()
|
||
|
||
def StreamInit(self):
|
||
"""
|
||
Send an initial stream header
|
||
"""
|
||
self.Dispatcher.Stream = simplexml.NodeBuilder()
|
||
self.Dispatcher.Stream._dispatch_depth = 2
|
||
self.Dispatcher.Stream.dispatch = self.Dispatcher.dispatch
|
||
self.Dispatcher.Stream.stream_header_received = self._check_stream_start
|
||
self.Dispatcher.Stream.features = None
|
||
if self.sock_type == TYPE_CLIENT:
|
||
self.send_stream_header()
|
||
|
||
def send_stream_header(self):
|
||
self.Dispatcher._metastream = Node('stream:stream')
|
||
self.Dispatcher._metastream.setNamespace(self.Namespace)
|
||
self.Dispatcher._metastream.setAttr('version', '1.0')
|
||
self.Dispatcher._metastream.setAttr('xmlns:stream', NS_STREAMS)
|
||
self.Dispatcher._metastream.setAttr('from',
|
||
self.conn_holder.zeroconf.name)
|
||
if self.to:
|
||
self.Dispatcher._metastream.setAttr('to', self.to)
|
||
self.Dispatcher.send("<?xml version='1.0'?>%s>" % str(
|
||
self.Dispatcher._metastream)[:-2])
|
||
|
||
def _check_stream_start(self, ns, tag, attrs):
|
||
if ns != NS_STREAMS or tag != 'stream':
|
||
log.error('Incorrect stream start: (%s,%s).Terminating!' % (tag,
|
||
ns), 'error')
|
||
self.Connection.disconnect()
|
||
if self.on_not_ok:
|
||
self.on_not_ok('Connection to host could not be established: '
|
||
'Incorrect answer from server.')
|
||
return
|
||
if self.sock_type == TYPE_SERVER:
|
||
if 'from' in attrs:
|
||
self.to = attrs['from']
|
||
self.send_stream_header()
|
||
if 'version' in attrs and attrs['version'] == '1.0':
|
||
# other part supports stream features
|
||
features = Node('stream:features')
|
||
self.Dispatcher.send(features)
|
||
while self.stanzaqueue:
|
||
stanza, is_message = self.stanzaqueue.pop(0)
|
||
self.send(stanza, is_message)
|
||
elif self.sock_type == TYPE_CLIENT:
|
||
while self.stanzaqueue:
|
||
stanza, is_message = self.stanzaqueue.pop(0)
|
||
self.send(stanza, is_message)
|
||
|
||
def on_disconnect(self):
|
||
if self.conn_holder:
|
||
if self.fd in self.conn_holder.ids_of_awaiting_messages:
|
||
del self.conn_holder.ids_of_awaiting_messages[self.fd]
|
||
self.conn_holder.remove_connection(self.sock_hash)
|
||
if 'Dispatcher' in self.__dict__:
|
||
self.Dispatcher.PlugOut()
|
||
if 'P2PConnection' in self.__dict__:
|
||
self.P2PConnection.PlugOut()
|
||
self.Connection = None
|
||
self._caller = None
|
||
self.conn_holder = None
|
||
|
||
def force_disconnect(self):
|
||
if self.Connection:
|
||
self.disconnect()
|
||
else:
|
||
self.on_disconnect()
|
||
|
||
def _on_receive_document_attrs(self, data):
|
||
if data:
|
||
self.Dispatcher.ProcessNonBlocking(data)
|
||
if not hasattr(self, 'Dispatcher') or \
|
||
self.Dispatcher.Stream._document_attrs is None:
|
||
return
|
||
self.onreceive(None)
|
||
if 'version' in self.Dispatcher.Stream._document_attrs and \
|
||
self.Dispatcher.Stream._document_attrs['version'] == '1.0':
|
||
#~ self.onreceive(self._on_receive_stream_features)
|
||
#XXX continue with TLS
|
||
return
|
||
self.onreceive(None)
|
||
return True
|
||
|
||
def remove_timeout(self):
|
||
pass
|
||
|
||
def _register_handlers(self):
|
||
self._caller.peerhost = self.Connection._sock.getsockname()
|
||
self.RegisterHandler('message', lambda conn,
|
||
data:self._caller._messageCB(self.Server, conn, data))
|
||
self.RegisterHandler('iq', self._caller._siSetCB, 'set', nbxmpp.NS_SI)
|
||
self.RegisterHandler('iq', self._caller._siErrorCB, 'error',
|
||
nbxmpp.NS_SI)
|
||
self.RegisterHandler('iq', self._caller._siResultCB, 'result',
|
||
nbxmpp.NS_SI)
|
||
self.RegisterHandler('iq', self._caller._bytestreamSetCB, 'set',
|
||
nbxmpp.NS_BYTESTREAM)
|
||
self.RegisterHandler('iq', self._caller._bytestreamResultCB, 'result',
|
||
nbxmpp.NS_BYTESTREAM)
|
||
self.RegisterHandler('iq', self._caller._bytestreamErrorCB, 'error',
|
||
nbxmpp.NS_BYTESTREAM)
|
||
self.RegisterHandler('iq', self._caller._DiscoverItemsGetCB, 'get',
|
||
nbxmpp.NS_DISCO_ITEMS)
|
||
self.RegisterHandler('iq', self._caller._JingleCB, 'result')
|
||
self.RegisterHandler('iq', self._caller._JingleCB, 'error')
|
||
self.RegisterHandler('iq', self._caller._JingleCB, 'set',
|
||
nbxmpp.NS_JINGLE)
|
||
|
||
class P2PConnection(IdleObject, PlugIn):
|
||
def __init__(self, sock_hash, _sock, addresses=None, caller=None,
|
||
on_connect=None, client=None):
|
||
IdleObject.__init__(self)
|
||
self._owner = client
|
||
PlugIn.__init__(self)
|
||
self.sendqueue = []
|
||
self.sendbuff = None
|
||
self.buff_is_message = False
|
||
self._sock = _sock
|
||
self.sock_hash = None
|
||
self.addresses = addresses
|
||
self.on_connect = on_connect
|
||
self.client = client
|
||
self.writable = False
|
||
self.readable = False
|
||
self._exported_methods = [self.send, self.disconnect, self.onreceive]
|
||
self.on_receive = None
|
||
if _sock:
|
||
self.host = addresses[0]['host']
|
||
self.port = addresses[0]['port']
|
||
self._sock = _sock
|
||
self.state = 1
|
||
self._sock.setblocking(False)
|
||
self.fd = self._sock.fileno()
|
||
self.on_connect(self)
|
||
else:
|
||
self.state = 0
|
||
self.addresses_ = self.addresses
|
||
self.get_next_addrinfo()
|
||
|
||
def get_next_addrinfo(self):
|
||
address = self.addresses_.pop(0)
|
||
self.host = address['host']
|
||
self.port = address['port']
|
||
try:
|
||
self.ais = socket.getaddrinfo(address['host'], address['port'], socket.AF_UNSPEC,
|
||
socket.SOCK_STREAM)
|
||
except socket.gaierror as e:
|
||
log.info('Lookup failure for %s: %s[%s]', host, e[1],
|
||
repr(e[0]), exc_info=True)
|
||
if len(self.addresses_) > 0: return self.get_next_addrinfo()
|
||
else:
|
||
self.connect_to_next_ip()
|
||
|
||
def connect_to_next_ip(self):
|
||
if len(self.ais) == 0:
|
||
log.error('Connection failure to %s', str(self.host), exc_info=True)
|
||
if len(self.addresses_) > 0: return self.get_next_addrinfo()
|
||
self.disconnect()
|
||
return
|
||
ai = self.ais.pop(0)
|
||
log.info('Trying to connect to %s through %s:%s', str(self.host),
|
||
ai[4][0], ai[4][1], exc_info=True)
|
||
try:
|
||
self._sock = socket.socket(*ai[:3])
|
||
self._sock.setblocking(False)
|
||
self._server = ai[4]
|
||
except socket.error:
|
||
if sys.exc_value[0] != errno.EINPROGRESS:
|
||
# for all errors, we try other addresses
|
||
self.connect_to_next_ip()
|
||
return
|
||
self.fd = self._sock.fileno()
|
||
app.idlequeue.plug_idle(self, True, False)
|
||
self.set_timeout(CONNECT_TIMEOUT_SECONDS)
|
||
self.do_connect()
|
||
|
||
def set_timeout(self, timeout):
|
||
app.idlequeue.remove_timeout(self.fd)
|
||
if self.state >= 0:
|
||
app.idlequeue.set_read_timeout(self.fd, timeout)
|
||
|
||
def plugin(self, owner):
|
||
self.onreceive(owner._on_receive_document_attrs)
|
||
self._plug_idle()
|
||
return True
|
||
|
||
def plugout(self):
|
||
"""
|
||
Disconnect from the remote server and unregister self.disconnected
|
||
method from the owner's dispatcher
|
||
"""
|
||
self.disconnect()
|
||
self._owner = None
|
||
|
||
def onreceive(self, recv_handler):
|
||
if not recv_handler:
|
||
if hasattr(self._owner, 'Dispatcher'):
|
||
self.on_receive = self._owner.Dispatcher.ProcessNonBlocking
|
||
else:
|
||
self.on_receive = None
|
||
return
|
||
_tmp = self.on_receive
|
||
# make sure this cb is not overriden by recursive calls
|
||
if not recv_handler(None) and _tmp == self.on_receive:
|
||
self.on_receive = recv_handler
|
||
|
||
def send(self, packet, is_message=False, now=False):
|
||
"""
|
||
Append stanza to the queue of messages to be send if now is False, else
|
||
send it instantly
|
||
"""
|
||
if self.state <= 0:
|
||
return
|
||
|
||
r = packet
|
||
|
||
if now:
|
||
self.sendqueue.insert(0, (r, is_message))
|
||
self._do_send()
|
||
else:
|
||
self.sendqueue.append((r, is_message))
|
||
self._plug_idle()
|
||
|
||
def read_timeout(self):
|
||
ids = self.client.conn_holder.ids_of_awaiting_messages
|
||
if self.fd in ids and len(ids[self.fd]) > 0:
|
||
for (id_, thread_id) in ids[self.fd]:
|
||
if hasattr(self._owner, 'Dispatcher'):
|
||
self._owner.Dispatcher.Event('', DATA_ERROR, (
|
||
self.client.to, thread_id))
|
||
else:
|
||
self._owner.on_not_ok('connection timeout')
|
||
ids[self.fd] = []
|
||
self.pollend()
|
||
|
||
def do_connect(self):
|
||
errnum = 0
|
||
try:
|
||
self._sock.connect(self._server[:2])
|
||
self._sock.setblocking(False)
|
||
except Exception as ee:
|
||
errnum = ee.errno
|
||
errstr = ee.strerror
|
||
errors = (errno.EINPROGRESS, errno.EALREADY, errno.EWOULDBLOCK)
|
||
if 'WSAEINVAL' in errno.__dict__:
|
||
errors += (errno.WSAEINVAL,)
|
||
if errnum in errors:
|
||
return
|
||
# win32 needs this
|
||
elif errnum not in (0, 10056, errno.EISCONN) or self.state != 0:
|
||
log.error('Could not connect to %s: %s [%s]', str(self.host),
|
||
errnum, errstr)
|
||
self.connect_to_next_ip()
|
||
return
|
||
else: # socket is already connected
|
||
self._sock.setblocking(False)
|
||
self.state = 1 # connected
|
||
# we are connected
|
||
self.on_connect(self)
|
||
|
||
def pollout(self):
|
||
if self.state == 0:
|
||
self.do_connect()
|
||
return
|
||
app.idlequeue.remove_timeout(self.fd)
|
||
self._do_send()
|
||
|
||
def pollend(self):
|
||
if self.state == 0: # error in connect()?
|
||
#self.disconnect()
|
||
self.connect_to_next_ip()
|
||
else:
|
||
self.state = -1
|
||
self.disconnect()
|
||
|
||
def pollin(self):
|
||
"""
|
||
Reads all pending incoming data. Call owner's disconnected() method if
|
||
appropriate
|
||
"""
|
||
received = ''
|
||
errnum = 0
|
||
try:
|
||
# get as many bites, as possible, but not more than RECV_BUFSIZE
|
||
received = self._sock.recv(MAX_BUFF_LEN)
|
||
except Exception as e:
|
||
errnum = e.errno
|
||
# "received" will be empty anyhow
|
||
if errnum == ssl.SSL_ERROR_WANT_READ:
|
||
pass
|
||
elif errnum in [errno.ECONNRESET, errno.ENOTCONN, errno.ESHUTDOWN]:
|
||
self.pollend()
|
||
# don't proccess result, cas it will raise error
|
||
return
|
||
elif not received :
|
||
if errnum != ssl.SSL_ERROR_EOF:
|
||
# 8 EOF occurred in violation of protocol
|
||
self.pollend()
|
||
if self.state >= 0:
|
||
self.disconnect()
|
||
return
|
||
|
||
if self.state < 0:
|
||
return
|
||
if self.on_receive:
|
||
if self._owner.sock_type == TYPE_CLIENT:
|
||
self.set_timeout(ACTIVITY_TIMEOUT_SECONDS)
|
||
if received.strip():
|
||
log.debug('received: %s', received)
|
||
if hasattr(self._owner, 'Dispatcher'):
|
||
self._owner.Dispatcher.Event('', DATA_RECEIVED, received)
|
||
self.on_receive(received)
|
||
else:
|
||
# This should never happed, so we need the debug
|
||
log.error('Unhandled data received: %s' % received)
|
||
self.disconnect()
|
||
return True
|
||
|
||
def disconnect(self, message=''):
|
||
"""
|
||
Close the socket
|
||
"""
|
||
app.idlequeue.remove_timeout(self.fd)
|
||
app.idlequeue.unplug_idle(self.fd)
|
||
try:
|
||
self._sock.shutdown(socket.SHUT_RDWR)
|
||
self._sock.close()
|
||
except socket.error:
|
||
# socket is already closed
|
||
pass
|
||
self.fd = -1
|
||
self.state = -1
|
||
if self._owner:
|
||
self._owner.on_disconnect()
|
||
|
||
def _do_send(self):
|
||
if not self.sendbuff:
|
||
if not self.sendqueue:
|
||
return None # nothing to send
|
||
self.sendbuff, self.buff_is_message = self.sendqueue.pop(0)
|
||
self.sent_data = self.sendbuff
|
||
try:
|
||
send_count = self._sock.send(self.sendbuff)
|
||
if send_count:
|
||
self.sendbuff = self.sendbuff[send_count:]
|
||
if not self.sendbuff and not self.sendqueue:
|
||
if self.state < 0:
|
||
app.idlequeue.unplug_idle(self.fd)
|
||
self._on_send()
|
||
self.disconnect()
|
||
return
|
||
# we are not waiting for write
|
||
self._plug_idle()
|
||
self._on_send()
|
||
|
||
except socket.error as e:
|
||
if e.errno == ssl.SSL_ERROR_WANT_WRITE:
|
||
return True
|
||
if self.state < 0:
|
||
self.disconnect()
|
||
return
|
||
self._on_send_failure()
|
||
return
|
||
if self._owner.sock_type == TYPE_CLIENT:
|
||
self.set_timeout(ACTIVITY_TIMEOUT_SECONDS)
|
||
return True
|
||
|
||
def _plug_idle(self):
|
||
readable = self.state != 0
|
||
if self.sendqueue or self.sendbuff:
|
||
writable = True
|
||
else:
|
||
writable = False
|
||
if self.writable != writable or self.readable != readable:
|
||
app.idlequeue.plug_idle(self, writable, readable)
|
||
|
||
|
||
def _on_send(self):
|
||
if self.sent_data and self.sent_data.strip():
|
||
log.debug('sent: %s' % self.sent_data)
|
||
if hasattr(self._owner, 'Dispatcher'):
|
||
self._owner.Dispatcher.Event('', DATA_SENT, self.sent_data)
|
||
self.sent_data = None
|
||
if self.buff_is_message:
|
||
self._owner.on_message_sent(self.fd)
|
||
self.buff_is_message = False
|
||
|
||
def _on_send_failure(self):
|
||
log.error('Socket error while sending data')
|
||
self._owner.on_disconnect()
|
||
self.sent_data = None
|
||
|
||
class ClientZeroconf:
|
||
def __init__(self, caller):
|
||
self.caller = caller
|
||
self.zeroconf = None
|
||
self.roster = None
|
||
self.last_msg = ''
|
||
self.connections = {}
|
||
self.recipient_to_hash = {}
|
||
self.ip_to_hash = {}
|
||
self.hash_to_port = {}
|
||
self.listener = None
|
||
self.ids_of_awaiting_messages = {}
|
||
self.disconnect_handlers = []
|
||
self.disconnecting = False
|
||
|
||
def connect(self, show, msg):
|
||
self.port = self.start_listener(self.caller.port)
|
||
if not self.port:
|
||
return False
|
||
self.zeroconf_init(show, msg)
|
||
if not self.zeroconf.connect():
|
||
self.disconnect()
|
||
return None
|
||
self.roster = roster_zeroconf.Roster(self.zeroconf)
|
||
return True
|
||
|
||
def remove_announce(self):
|
||
if self.zeroconf:
|
||
return self.zeroconf.remove_announce()
|
||
|
||
def announce(self):
|
||
if self.zeroconf:
|
||
return self.zeroconf.announce()
|
||
|
||
def set_show_msg(self, show, msg):
|
||
if self.zeroconf:
|
||
self.zeroconf.txt['msg'] = msg
|
||
self.last_msg = msg
|
||
return self.zeroconf.update_txt(show)
|
||
|
||
def resolve_all(self):
|
||
if self.zeroconf:
|
||
self.zeroconf.resolve_all()
|
||
|
||
def reannounce(self, txt):
|
||
self.remove_announce()
|
||
self.zeroconf.txt = txt
|
||
self.zeroconf.port = self.port
|
||
self.zeroconf.username = self.caller.username
|
||
return self.announce()
|
||
|
||
def zeroconf_init(self, show, msg):
|
||
self.zeroconf = zeroconf.Zeroconf(self.caller._on_new_service,
|
||
self.caller._on_remove_service, self.caller._on_name_conflictCB,
|
||
self.caller._on_disconnected, self.caller._on_error,
|
||
self.caller.username, self.caller.host, self.port)
|
||
self.zeroconf.txt['msg'] = msg
|
||
self.zeroconf.txt['status'] = show
|
||
self.zeroconf.txt['1st'] = self.caller.first
|
||
self.zeroconf.txt['last'] = self.caller.last
|
||
self.zeroconf.txt['jid'] = self.caller.jabber_id
|
||
self.zeroconf.txt['email'] = self.caller.email
|
||
self.zeroconf.username = self.caller.username
|
||
self.zeroconf.host = self.caller.host
|
||
self.zeroconf.port = self.port
|
||
self.last_msg = msg
|
||
|
||
def disconnect(self):
|
||
# to avoid recursive calls
|
||
if self.disconnecting:
|
||
return
|
||
if self.listener:
|
||
self.listener.disconnect()
|
||
self.listener = None
|
||
if self.zeroconf:
|
||
self.zeroconf.disconnect()
|
||
self.zeroconf = None
|
||
if self.roster:
|
||
self.roster.zeroconf = None
|
||
self.roster._data = None
|
||
self.roster = None
|
||
self.disconnecting = True
|
||
for i in reversed(self.disconnect_handlers):
|
||
log.debug('Calling disconnect handler %s' % i)
|
||
i()
|
||
self.disconnecting = False
|
||
|
||
def start_disconnect(self):
|
||
self.disconnect()
|
||
|
||
def kill_all_connections(self):
|
||
for connection in self.connections.values():
|
||
connection.force_disconnect()
|
||
|
||
def add_connection(self, connection, ip, port, recipient):
|
||
sock_hash=connection.sock_hash
|
||
if sock_hash not in self.connections:
|
||
self.connections[sock_hash] = connection
|
||
self.ip_to_hash[ip] = sock_hash
|
||
self.hash_to_port[sock_hash] = port
|
||
if recipient:
|
||
self.recipient_to_hash[recipient] = sock_hash
|
||
|
||
def remove_connection(self, sock_hash):
|
||
if sock_hash in self.connections:
|
||
del self.connections[sock_hash]
|
||
for i in self.recipient_to_hash:
|
||
if self.recipient_to_hash[i] == sock_hash:
|
||
del self.recipient_to_hash[i]
|
||
break
|
||
for i in self.ip_to_hash:
|
||
if self.ip_to_hash[i] == sock_hash:
|
||
del self.ip_to_hash[i]
|
||
break
|
||
if sock_hash in self.hash_to_port:
|
||
del self.hash_to_port[sock_hash]
|
||
|
||
def start_listener(self, port):
|
||
for p in range(port, port + 5):
|
||
self.listener = ZeroconfListener(p, self)
|
||
self.listener.bind()
|
||
if self.listener.started:
|
||
return p
|
||
self.listener = None
|
||
return False
|
||
|
||
def getRoster(self):
|
||
if self.roster:
|
||
return self.roster.getRoster()
|
||
return {}
|
||
|
||
def send(self, stanza, is_message=False, now=False, on_ok=None,
|
||
on_not_ok=None):
|
||
to = stanza.getTo()
|
||
if to is None:
|
||
# Can’t send undirected stanza over Zeroconf.
|
||
return -1
|
||
to = to.getStripped()
|
||
stanza.setFrom(self.roster.zeroconf.name)
|
||
|
||
try:
|
||
item = self.roster[to]
|
||
except KeyError:
|
||
# Contact offline
|
||
return -1
|
||
|
||
# look for hashed connections
|
||
if to in self.recipient_to_hash:
|
||
conn = self.connections[self.recipient_to_hash[to]]
|
||
id_ = stanza.getID() or ''
|
||
if conn.add_stanza(stanza, is_message):
|
||
if on_ok:
|
||
on_ok(id_)
|
||
return
|
||
|
||
the_address = None
|
||
for address in item['addresses']:
|
||
if address['address'] in self.ip_to_hash:
|
||
the_address = address
|
||
if the_address and the_address['address'] in self.ip_to_hash:
|
||
hash_ = self.ip_to_hash[the_address['address']]
|
||
if self.hash_to_port[hash_] == the_address['port']:
|
||
conn = self.connections[hash_]
|
||
id_ = stanza.getID() or ''
|
||
if conn.add_stanza(stanza, is_message):
|
||
if on_ok:
|
||
on_ok(id_)
|
||
return
|
||
|
||
# otherwise open new connection
|
||
if not stanza.getID():
|
||
stanza.setID('zero')
|
||
addresses_ = []
|
||
for address in item['addresses']:
|
||
addresses_ += [{'host': address['address'], 'address': address['address'], 'port': address['port']}]
|
||
P2PClient(None, addresses_, self,
|
||
[(stanza, is_message)], to, on_ok=on_ok, on_not_ok=on_not_ok)
|
||
|
||
def getAnID(self):
|
||
"""
|
||
Generate a random id
|
||
"""
|
||
return ''.join(Random().sample(string.ascii_letters + string.digits, 6))
|
||
|
||
def RegisterDisconnectHandler(self, handler):
|
||
"""
|
||
Register handler that will be called on disconnect
|
||
"""
|
||
self.disconnect_handlers.append(handler)
|
||
|
||
def UnregisterDisconnectHandler(self, handler):
|
||
"""
|
||
Unregister handler that is called on disconnect
|
||
"""
|
||
self.disconnect_handlers.remove(handler)
|
||
|
||
def SendAndWaitForResponse(self, stanza, timeout=None, func=None,
|
||
args=None):
|
||
"""
|
||
Send stanza and wait for recipient's response to it. Will call
|
||
transports on_timeout callback if response is not retrieved in time
|
||
|
||
Be aware: Only timeout of latest call of SendAndWait is active.
|
||
"""
|
||
# if timeout is None:
|
||
# timeout = DEFAULT_TIMEOUT_SECONDS
|
||
def on_ok(_waitid):
|
||
# if timeout:
|
||
# self._owner.set_timeout(timeout)
|
||
to = stanza.getTo()
|
||
to = app.get_jid_without_resource(to)
|
||
|
||
try:
|
||
item = self.roster[to]
|
||
except KeyError:
|
||
# Contact offline
|
||
item = None
|
||
|
||
conn = None
|
||
if to in self.recipient_to_hash:
|
||
conn = self.connections[self.recipient_to_hash[to]]
|
||
elif item:
|
||
the_address = None
|
||
for address in item['addresses']:
|
||
if address['address'] in self.ip_to_hash:
|
||
the_address = address
|
||
if the_address and the_address['address'] in self.ip_to_hash:
|
||
hash_ = self.ip_to_hash[the_address['address']]
|
||
if self.hash_to_port[hash_] == the_address['port']:
|
||
conn = self.connections[hash_]
|
||
if func:
|
||
conn.Dispatcher.on_responses[_waitid] = (func, args)
|
||
conn.onreceive(conn.Dispatcher._WaitForData)
|
||
conn.Dispatcher._expected[_waitid] = None
|
||
self.send(stanza, on_ok=on_ok)
|
||
|
||
def SendAndCallForResponse(self, stanza, func=None, args=None):
|
||
"""
|
||
Put stanza on the wire and call back when recipient replies. Additional
|
||
callback arguments can be specified in args.
|
||
"""
|
||
self.SendAndWaitForResponse(stanza, 0, func, args)
|