rewritten socks5.py, added support for proxy65

connect to host don;t block, FT in both
directions if only one real ip, or proxy
This commit is contained in:
Dimitur Kirov 2005-08-06 16:31:41 +00:00
parent d82dab9fbf
commit 650440fc1d
2 changed files with 668 additions and 320 deletions

View File

@ -127,6 +127,7 @@ class Connection:
'GC_SUBJECT': [], 'GC_CONFIG': [], 'BAD_PASSPHRASE': [],
'ROSTER_INFO': [], 'ERROR_ANSWER': [], 'BOOKMARKS': [], 'CON_TYPE': [],
'FILE_REQUEST': [], 'FILE_RCV_COMPLETED': [], 'FILE_PROGRESS': [],
'FILE_REQUEST_ERROR': [], 'FILE_SEND_ERROR': [],
'STANZA_ARRIVED': [], 'STANZA_SENT': [], 'HTTP_AUTH': []
}
self.name = name
@ -378,7 +379,23 @@ class Connection:
(_('Connection with account "%s" has been lost') % self.name,
_('To continue sending and receiving messages, you will need to reconnect.')))
self.on_purpose = False
# END disconenctedCB
def _bytestreamErrorCB(self, con, iq_obj):
gajim.log.debug('_bytestreamErrorCB')
frm = str(iq_obj.getFrom())
id = str(iq_obj.getAttr('id'))
query = iq_obj.getTag('query')
streamhost = query.getTag('streamhost')
host = streamhost.getAttr('host')
port = streamhost.getAttr('port')
jid = iq_obj.getFrom().getStripped().encode('utf8')
id = id[3:]
if not self.files_props.has_key(id):
return
file_props = self.files_props[id]
self.dispatch('FILE_REQUEST_ERROR', (jid, file_props))
raise common.xmpp.NodeProcessed
def _bytestreamSetCB(self, con, iq_obj):
gajim.log.debug('_bytestreamSetCB')
@ -388,13 +405,15 @@ class Connection:
sid = str(query.getAttr('sid'))
file_props = gajim.socks5queue.get_file_props(
self.name, sid)
if file_props is None:
raise common.xmpp.NodeProcessed
# todo - error
streamhosts=[]
for item in query.getChildren():
if item.getName() == 'streamhost':
host_dict={}
host_dict={
'state' : 0,
'target' : target,
'id' : id,
'initiator' : str(iq_obj.getFrom())
}
for attr in item.getAttrs():
val = item.getAttr(attr)
if type(val) == unicode:
@ -403,36 +422,163 @@ class Connection:
attr = attr.encode('utf-8')
host_dict[attr] = val
streamhosts.append(host_dict)
for streamhost in streamhosts:
sock5 = socks5.Socks5Receiver(host = streamhost['host'], \
port = int(streamhost['port']), initiator = streamhost['jid'],
target = target, sid = sid, file_props = file_props)
iq = common.xmpp.Iq(to = streamhost['jid'], typ = 'result', frm = target)
iq.setAttr('id', id)
query = iq.setTag('query')
query.setNamespace(common.xmpp.NS_BYTESTREAM)
stream_tag = query.setTag('streamhost-used')
stream_tag.setAttr('jid', streamhost['jid'])
ret = gajim.socks5queue.add_receiver(self.name, sock5,
self.to_be_sent.append, iq)
if ret is None:
continue
raise common.xmpp.NodeProcessed
if file_props is None:
if self.files_props.has_key(sid):
file_props = self.files_props[sid]
file_props['fast'] = streamhosts
# this is not good, but the only way to work with psi!
if len(gajim.socks5queue.readers) == 0 and \
len(gajim.socks5queue.senders) == 0:
self._connect_error(str(iq_obj.getFrom()), id, code = 406)
# END not good
raise common.xmpp.NodeProcessed
fast = None
try:
fast = query.getTag('fast')
except Exception, e:
pass
if fast is not None:
if fast.getNamespace() == 'http://affinix.com/jabber/stream':
self.send_socks5_info(file_props, fast = False, \
receiver = file_props['sender'], sender = file_props['receiver'])
self.files_props[sid] = file_props
file_props['streamhosts'] = streamhosts
conn_err = False
if file_props['type'] == 'r':
gajim.socks5queue.connect_to_hosts(self.name, sid,
self.send_success_connect_reply, self._connect_error)
raise common.xmpp.NodeProcessed
def send_success_connect_reply(self, streamhost):
''' send reply to the initiator of FT that we
made a connection
'''
if streamhost is None:
return None
iq = common.xmpp.Iq(to = streamhost['initiator'], typ = 'result', \
frm = streamhost['target'])
iq.setAttr('id', streamhost['id'])
query = iq.setTag('query')
query.setNamespace(common.xmpp.NS_BYTESTREAM)
stream_tag = query.setTag('streamhost-used')
stream_tag.setAttr('jid', streamhost['jid'])
self.to_be_sent.append(iq)
def _connect_error(self, to, id, code = 404):
msg_dict = {
404 : 'Could not connect to given hosts',
405 : 'Cancel',
406 : 'Not acceptable',
}
msg = msg_dict[code]
iq = None
iq = common.xmpp.Protocol(name = 'iq', to = to,
typ = 'error')
iq.setAttr('id', id)
err = iq.setTag('error')
err.setAttr('code', str(code))
err.setData(msg)
self.to_be_sent.append(iq)
def _bytestreamResultCB(self, con, iq_obj):
gajim.log.debug('_bytestreamResultCB')
frm = str(iq_obj.getFrom())
id = str(iq_obj.getAttr('id'))
real_id = str(iq_obj.getAttr('id'))
query = iq_obj.getTag('query')
id = real_id[3:]
if not self.files_props.has_key(id):
file_props = gajim.socks5queue.get_file_props(
self.name, id)
gajim.socks5queue.get_file_from_sender(file_props, self.name)
raise common.xmpp.NodeProcessed
file_props = self.files_props[id]
if real_id[:3] == 'au_':
gajim.socks5queue.send_file(file_props, self.name)
raise common.xmpp.NodeProcessed
elif real_id[:3] == 'px_':
proxyhosts = []
for item in query.getChildren():
if item.getName() == 'streamhost':
host_dict={
'state' : 0,
'target' : str(iq_obj.getAttr('to')),
'id' : id,
'initiator' : str(iq_obj.getFrom())
}
for attr in item.getAttrs():
val = item.getAttr(attr)
host_dict[str(attr)] = str(val)
proxyhosts.append(host_dict)
file_props['proxyhosts'] = proxyhosts
iq = common.xmpp.Protocol(name = 'iq', to = \
str(file_props['proxy_receiver']), typ = 'set')
port = gajim.config.get('file_transfers_port')
file_props['request-id'] = 'id_' + file_props['sid']
iq.setID(file_props['request-id'])
query = iq.setTag('query')
query.setNamespace(common.xmpp.NS_BYTESTREAM)
query.setAttr('mode', 'tcp')
query.setAttr('sid', file_props['sid'])
streamhost = query.setTag('streamhost')
streamhost.setAttr('port', str(port))
streamhost.setAttr('host', self.peerhost[0])
streamhost.setAttr('jid', str(file_props['proxy_sender']))
for proxyhost in proxyhosts:
streamhost = common.xmpp.Node(tag = 'streamhost')
query.addChild(node=streamhost)
streamhost.setAttr('port', proxyhost['port'])
streamhost.setAttr('host', proxyhost['host'])
streamhost.setAttr('jid', proxyhost['jid'])
proxy = streamhost.setTag('proxy')
proxy.setNamespace(common.xmpp.NS_STREAM)
fast_tag = query.setTag('fast')
fast_tag.setNamespace(common.xmpp.NS_STREAM)
self.to_be_sent.append(iq)
raise common.xmpp.NodeProcessed
streamhost = query.getTag('streamhost-used')
jid = streamhost.getAttr('jid')
id = id[3:]
if not self.files_props.has_key(id):
return
file_props = self.files_props[id]
gajim.socks5queue.send_file(file_props, self.name)
proxy = None
if file_props.has_key('proxyhosts'):
for proxyhost in file_props['proxyhosts']:
if proxyhost['jid'] == jid:
proxy = proxyhost
if proxy != None:
if not file_props.has_key('streamhosts'):
file_props['streamhosts'] =[]
file_props['streamhosts'].append(proxy)
file_props['is_a_proxy'] = True
receiver = socks5.Socks5Receiver(proxy, file_props['sid'], file_props)
gajim.socks5queue.add_receiver(self.name, receiver)
proxy['idx'] = receiver.queue_idx
gajim.socks5queue.on_success = self.proxy_auth_ok
raise common.xmpp.NodeProcessed
elif not file_props.has_key('connected') or \
file_props['connected'] is False:
gajim.socks5queue.send_file(file_props, self.name)
if file_props.has_key('fast'):
fasts = file_props['fast']
if len(fasts) > 0:
self._connect_error(str(iq_obj.getFrom()), fasts[0]['id'],
code = 406)
raise common.xmpp.NodeProcessed
def proxy_auth_ok(self, proxy):
''' cb, called after authentication to proxy server '''
file_props = self.files_props[proxy['id']]
iq = common.xmpp.Protocol(name = 'iq', to = proxy['initiator'],
typ = 'set')
auth_id = "au_" + proxy['id']
iq.setID(auth_id)
query = iq.setTag('query')
query.setNamespace(common.xmpp.NS_BYTESTREAM)
query.setAttr('sid', proxy['id'])
activate = query.setTag('activate')
activate.setData(file_props['proxy_receiver'])
iq.setID(auth_id)
self.to_be_sent.append(iq)
def _discoGetCB(self, con, iq_obj):
''' get disco info '''
@ -480,7 +626,7 @@ class Connection:
field = form.getField('stream-method')
if field.getValue() != common.xmpp.NS_BYTESTREAM:
return
self.send_socks5_info(file_props)
self.send_socks5_info(file_props, fast = True)
raise common.xmpp.NodeProcessed
def _get_sha(self, sid, initiator, target):
@ -488,25 +634,47 @@ class Connection:
return sha.new("%s%s%s" % (sid, initiator, target)).hexdigest()
def result_socks5_sid(self, sid, hash_id):
''' store the result of sha message from auth '''
if not self.files_props.has_key(sid):
return
file_props = self.files_props[sid]
file_props['hash'] = hash_id
return
def send_socks5_info(self, file_props):
def send_socks5_info(self, file_props, fast = True, receiver = None,
sender = None):
if type(self.peerhost) != tuple:
return
port = gajim.config.get('file_transfers_port')
sha_str = self._get_sha(file_props['sid'], file_props['sender'],
file_props['receiver'])
proxy = gajim.config.get_per('accounts', self.name, 'file_transfers_proxy')
#~ proxy = 'proxy.jabber.org'
if receiver is None:
receiver = file_props['receiver']
if sender is None:
sender = file_props['sender']
sha_str = self._get_sha(file_props['sid'], sender,
receiver)
file_props['sha_str'] = sha_str
listener = gajim.socks5queue.start_listener(self.peerhost[0], port,
sha_str, self.result_socks5_sid, file_props['sid'])
if listener == None:
# FIXME - raise error dialog that address is in use
return
iq = common.xmpp.Protocol(name = 'iq', to = str(file_props['receiver']),
if proxy:
iq = common.xmpp.Protocol(name = 'iq', to = str(proxy),
typ = 'get')
proxy_id = 'px_' + file_props['sid']
iq.setID(proxy_id)
query = iq.setTag('query')
query.setNamespace(common.xmpp.NS_BYTESTREAM)
self.to_be_sent.append(iq)
file_props['proxy_receiver'] = str(receiver)
file_props['proxy_sender'] = str(sender)
return
iq = common.xmpp.Protocol(name = 'iq', to = str(receiver),
typ = 'set')
file_props['request-id'] = 'id_' + file_props['sid']
iq.setID(file_props['request-id'])
@ -517,7 +685,12 @@ class Connection:
streamhost = query.setTag('streamhost')
streamhost.setAttr('port', str(port))
streamhost.setAttr('host', self.peerhost[0])
streamhost.setAttr('jid', str(file_props['sender']))
streamhost.setAttr('jid', sender)
if fast:
fast_tag = query.setTag('fast')
fast_tag.setNamespace(common.xmpp.NS_STREAM)
self.to_be_sent.append(iq)
def _siSetCB(self, con, iq_obj):
@ -546,7 +719,10 @@ class Connection:
if mime_type is not None:
file_props['mime-type'] = mime_type
name = gajim.config.get_per('accounts', self.name, 'name')
hostname = gajim.config.get_per('accounts', self.name, 'hostname')
resource = gajim.config.get_per('accounts', self.name, 'resource')
file_props['receiver'] = name + '@' + hostname + '/' + resource
file_props['sender'] = iq_obj.getFrom()
file_props['request-id'] = str(iq_obj.getAttr('id'))
file_props['sid'] = str(si.getAttr('id'))
@ -994,6 +1170,8 @@ class Connection:
common.xmpp.NS_BYTESTREAM)
con.RegisterHandler('iq', self._bytestreamResultCB, 'result',
common.xmpp.NS_BYTESTREAM)
con.RegisterHandler('iq', self._bytestreamErrorCB, 'error',
common.xmpp.NS_BYTESTREAM)
con.RegisterHandler('iq', self._BrowseResultCB, 'result',
common.xmpp.NS_BROWSE)
con.RegisterHandler('iq', self._DiscoverItemsCB, 'result',

View File

@ -44,6 +44,8 @@ class SocksQueue:
self.sha_handlers = {}
self.complete_transfer_cb = complete_transfer_cb
self.progress_transfer_cb = progress_transfer_cb
self.on_success = None
self.on_failure = None
def start_listener(self, host, port, sha_str, sha_handler, sid):
self.sha_handlers[sha_str] = (sha_handler, sid)
@ -54,41 +56,88 @@ class SocksQueue:
return None
self.connected += 1
return self.listener
def connect_to_hosts(self, account, sid, on_success = None,
on_failure = None):
self.on_success = on_success
self.on_failure = on_failure
if not self.files_props.has_key(account):
pass
# FIXME ---- show error dialog
else:
file_props = self.files_props[account][sid]
file_props['success_cb'] = on_success
file_props['failure_cb'] = on_failure
for streamhost in file_props['streamhosts']:
receiver = Socks5Receiver(streamhost, sid, file_props)
self.add_receiver(account, receiver)
streamhost['idx'] = receiver.queue_idx
def _socket_connected(self, streamhost, file_props):
streamhost['state'] = 0
for host in file_props['streamhosts']:
if host != streamhost and host.has_key('idx'):
host['state'] = -1
self.remove_receiver(host['idx'])
pass
def _connection_refused(self, streamhost, file_props, idx):
if file_props is None:
return
streamhost['state'] = -1
self.remove_receiver(idx)
if file_props['failure_cb']:
file_props['failure_cb'](streamhost['initiator'], streamhost['id'],
code = 404)
else:
# show error dialog, it seems to be the laast try
pass
def add_receiver(self, account, sock5_receiver):
''' add new file request '''
self.readers[self.idx] = sock5_receiver
sock5_receiver.queue_idx = self.idx
sock5_receiver.queue = self
sock5_receiver.account = account
self.idx += 1
result = sock5_receiver.connect()
if result != None:
self.connected += 1
result = sock5_receiver.main()
self.process_result(result, sock5_receiver)
return 1
return None
def get_file_from_sender(self, file_props, account):
if file_props.has_key('hash') and \
self.senders.has_key(file_props['hash']):
sender = self.senders[file_props['hash']]
sender.account = account
result = get_file_contents(0)
self.process_result(result, sender)
def result_sha(self, sha_str, idx):
if self.sha_handlers.has_key(sha_str):
props = self.sha_handlers[sha_str]
props[0](props[1], idx)
def send_file(self, file_props, account):
if self.senders.has_key(file_props['hash']):
if file_props.has_key('hash') and \
self.senders.has_key(file_props['hash']):
sender = self.senders[file_props['hash']]
sender.account = account
result = sender.send_file(file_props)
self.process_result(result, sender)
def add_receiver(self, account, sock5_receiver, auth_cb, auth_param):
''' add new file request '''
self.readers[self.idx] = sock5_receiver
sock5_receiver.queue_idx = self.idx
sock5_receiver.queue = self
sock5_receiver.account = account
sock5_receiver.auth_cb = auth_cb
sock5_receiver.auth_param = auth_param
self.idx += 1
result = sock5_receiver.connect()
if result != None:
sock5_receiver._sock.setblocking(False)
result = sock5_receiver.main()
self.process_result(result, sock5_receiver)
self.connected += 1
return 1
# we don't need blocking sockets anymore
# this unblocks ui!
return None
if file_props['type'] == 's':
sender.file_props = file_props
result = sender.send_file()
self.process_result(result, sender)
else:
file_props['received-len'] = 0
sender.file_props = file_props
def add_file_props(self, account, file_props):
''' file_prop to the dict of current file_props.
It is identified by account name and sid
'''
if file_props is None or \
file_props.has_key('sid') is False:
return
@ -96,7 +145,9 @@ class SocksQueue:
if not self.files_props.has_key(account):
self.files_props[account] = {}
self.files_props[account][id] = file_props
def get_file_props(self, account, sid):
''' get fil_prop by account name and session id '''
if self.files_props.has_key(account):
fl_props = self.files_props[account]
if fl_props.has_key(sid):
@ -104,7 +155,9 @@ class SocksQueue:
return None
def process(self, timeout=0):
''' process all file requests '''
''' Process all registered connection.
they can be receivers, senders and one listener
'''
if self.listener is not None:
if self.listener.pending_connection():
_sock = self.listener.accept_conn()
@ -117,9 +170,8 @@ class SocksQueue:
for idx in self.senders.keys():
sender = self.senders[idx]
if sender.connected:
if sender.state < 5:
if sender.pending_data():
if sender.pending_data(timeout):
result = sender.main()
if sender.state == 4:
self.result_sha(sender.sha_msg, idx)
@ -127,41 +179,57 @@ class SocksQueue:
continue
if result == -1:
sender.disconnect()
elif sender.state == 7:
for i in range(5):
if sender.file_props['paused']:
break
if not sender.connected:
self.process_result(-1, sender)
break
if sender.state == 8:
self.remove_sender(idx)
break
result = sender.write_next()
elif sender.state == 5:
if sender.file_props is not None and \
sender.file_props['type'] == 'r':
result = sender.get_file_contents(0)
self.process_result(result, sender)
if sender.file_props['stalled']:
break
elif sender.state == 7 and not sender.file_props['paused']:
if not sender.connected:
self.process_result(-1, sender)
break
if sender.state == 8:
self.remove_sender(idx)
break
result = sender.write_next()
self.process_result(result, sender)
if sender.file_props['stalled']:
break
elif sender.state == 8:
self.remove_sender(idx)
else:
self.remove_sender(idx)
for idx in self.readers.keys():
keys = self.readers.keys()
for idx in keys:
if not self.readers.has_key(idx):
continue
receiver = self.readers[idx]
if receiver.state == 0:
res = receiver.do_connect()
continue
if receiver.connected:
if receiver.file_props['paused']:
continue
if receiver.state == 5:
result = receiver.get_file_contents(timeout)
self.process_result(result, receiver)
else:
pd = receiver.pending_data()
if receiver.state < 5:
pd = receiver.pending_data(0)
if pd:
result = receiver.main(timeout)
result = receiver.main(0)
self.process_result(result, receiver)
else:
if receiver.file_props['type'] == 'r':
result = receiver.get_file_contents(timeout)
else:
result = receiver.write_next()
self.process_result(result, receiver)
else:
self.remove_receiver(idx)
def process_result(self, result, actor):
''' Take appropriate actions upon the result:
[ 0, - 1 ] complete/end transfer
[ > 0 ] send progress message
[ None ] do nothing
'''
if result is None:
return
if result in [0, -1] and \
@ -173,12 +241,17 @@ class SocksQueue:
actor.file_props)
def remove_receiver(self, idx):
''' Remove reciver from the list and decrease
the number of active connections with 1'''
if idx != -1:
if self.readers.has_key(idx):
if self.readers[idx].streamhost is not None:
self.readers[idx].streamhost['state'] = -1
del(self.readers[idx])
if self.connected > 0:
self.connected -= 1
def remove_sender(self, idx):
''' Remove reciver from the list of senders and decrease the
number of active connections with 1'''
if idx != -1:
if self.senders.has_key(idx):
del(self.senders[idx])
@ -196,159 +269,69 @@ class Socks5:
self._sock = None
self.account = None
self.state = 0 # not connected
def connect(self):
self._sock=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
self._sock.connect((self.host, self.port))
self._sock.setblocking(False)
self._send=self._sock.send
self._recv=self._sock.recv
except Exception, e:
return None
self.buff = ''
self.connected = True
self.state = 1 # connected
return 1
def receive(self):
''' Reads small pending incoming data.
Calls owner's disconnected() method if appropriate.'''
self.pauses = 0
self.size = 0
self.remaining_buff = ''
def get_fd(self):
''' Test if file is already open and return its fd,
or just open the file and return the fd.
'''
if self.file_props.has_key('fd'):
fd = self.file_props['fd']
else:
fd = open(self.file_props['file-name'],'w')
self.file_props['fd'] = fd
self.file_props['received-len'] = 0
return fd
def rem_fd(self, fd):
if self.file_props.has_key('fd'):
del(self.file_props['fd'])
try:
fd.close()
except:
pass
def receive(self):
''' Reads small chunks of data.
Calls owner's disconnected() method if appropriate.'''
if self.pending_read():
received = ''
while self.pending_read():
try:
add = self._recv(64)
except Exception, e:
add=''
received +=add
if not add:
break
if len(received) == 0:
try:
add = self._recv(64)
except Exception, e:
add=''
received +=add
if len(add) == 0:
self.disconnect()
else:
return None
return received
return add
def send_raw(self,raw_data):
''' Writes raw outgoing data. Blocks until done.
If supplied data is unicode string, encodes it to utf-8 before send.'''
''' Writes raw outgoing data. '''
try:
lenn = self._send(raw_data)
except Exception, e:
self.disconnect()
return len(raw_data)
def disconnect(self):
''' Closes the socket. '''
self._sock.close()
self.connected = False
def pending_read(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
if self._sock is None:
return False
try:
return select.select([self._sock],[],[],timeout)[0]
except Exception, e:
return False
def pending_write(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
if self._sock is None:
return False
try:
return select.select([],[self._sock],[],timeout)[0]
except Exception, e:
return False
def pending_connection(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
if self._sock is None:
return False
try:
return select.select([],[self._sock],[],timeout)[0]
except Exception, e:
return False
def _get_auth_buff(self):
''' Message, that we support 1 one auth mechanism:
the 'no auth' mechanism. '''
return struct.pack('!BBB', 0x05, 0x01, 0x00)
def _parse_auth_buff(self, buff):
''' Parse the initial message and create a list of auth
mechanisms '''
auth_mechanisms = []
ver, num_auth = struct.unpack('!BB', buff[:2])
for i in range(num_auth):
mechanism, = struct.unpack('!B', buff[1 + i])
auth_mechanisms.append(mechanism)
return auth_mechanisms
def _get_auth_response(self):
return struct.pack('!BB', 0x05, 0x00)
def _get_connect_buff(self):
''' Connect request by domain name '''
buff = struct.pack('!BBBBB%dsBB' % len(self.host), \
0x05, 0x01, 0x00, 0x03, len(self.host), self.host, \
self.port >> 8, self.port & 0xff)
return buff
def _get_request_buff(self, msg, command = 0x01):
''' Connect request by domain name,
sid sha, instead of domain name (jep 0096) '''
buff = struct.pack('!BBBBB%dsBB' % len(msg), \
0x05, command, 0x00, 0x03, len(msg), msg, 0, 0)
return buff
def _parse_request_buff(self, buff):
version, req_type, reserved, host_type, = \
struct.unpack('!BBBB', buff[:4])
if host_type == 0x01:
host_arr = struct.unpack('!iiii', buff[4:8])
host, = reduce(lambda e1, e2: str(e1) + "." + str(e2), host_arr)
host_len = len(host)
elif host_type == 0x03:
host_len, = struct.unpack('!B' , buff[4])
host, = struct.unpack('!%ds' % host_len, buff[5:5 + host_len])
portlen = len(buff[host_len + 5])
if portlen == 1: # Gaim bug :)
port, = struct.unpack('!B', buff[host_len + 5])
else:
port, = struct.unpack('!H', buff[host_len + 5])
return (req_type, host, port)
def read_connect(self):
buff = self._recv()
version, method = struct.unpack('!BB', buff)
if version != 0x05 or method == 0xff:
self.disconnect()
def _get_sha1_auth(self):
return sha.new("%s%s%s" % (self.sid, self.initiator, self.target)).hexdigest()
class Socks5Sender(Socks5):
''' class for sending file to socket over socks5 '''
def __init__(self, sock_hash, parent, _sock, host = None, port = None):
self.queue_idx = sock_hash
self.queue = parent
Socks5.__init__(self, host, port, None, None, None)
self._sock = _sock
self._sock.setblocking(False)
self._recv = _sock.recv
self._send = _sock.send
self.connected = True
self.state = 1 # waiting for first bytes
self.file_props = None
self.remaining_buff = ''
def write_next(self):
def write_next(self, initial = False):
if initial:
try:
# send
lenn = self._send(self._get_nl_byte())
except Exception, e:
# peer cannot read
if e.args[0] != 11:
self.state = 8
self.disconnect()
self.file_props['error'] = -1
return -1
self.state = 7
return 1
if self.remaining_buff != '':
buff = self.remaining_buff
self.remaining_buff = ''
@ -360,6 +343,7 @@ class Socks5Sender(Socks5):
lenn = self._send(buff)
except Exception, e:
if e.args[0] != 11:
# peer stopped reading
self.state = 8
self.fd.close()
self.disconnect()
@ -393,57 +377,253 @@ class Socks5Sender(Socks5):
self.state = 8
self.disconnect()
return -1
def get_file_contents(self, timeout):
''' read file contents from socket and write them to file ''', \
self.file_props['type'], self.file_props['sid']
if self.file_props is None or \
self.file_props.has_key('file-name') is False:
self.file_props['error'] = -2
return None
fd = None
if self.remaining_buff != '':
fd = self.get_fd()
fd.write(self.remaining_buff)
lenn = len(self.remaining_buff)
self.file_props['received-len'] += lenn
self.remaining_buff = ''
if self.file_props['received-len'] == int(self.file_props['size']):
self.rem_fd(fd)
self.disconnect()
self.file_props['error'] = 0
self.file_props['completed'] = True
return 0
else:
while self.pending_read(timeout):
fd = self.get_fd()
try:
buff = self._recv(MAX_BUFF_LEN)
except Exception, e:
buff = ''
first_byte = False
if self.file_props['received-len'] == 0:
if len(buff) > 0:
# delimiter between auth and data
if ord(buff[0]) == 0xD:
first_byte = True
buff = buff[1:]
self.file_props['received-len'] += len(buff)
fd.write(buff)
if len(buff) == 0 and first_byte is False:
# Transfer stopped somehow:
# reset, paused or network error
self.rem_fd(fd)
try:
# file is not complete, remove it
os.remove(self.file_props['file-name'])
except Exception, e:
# unable to remove the incomplete file
pass
self.disconnect(False)
self.file_props['error'] = -1
return 0
if self.file_props['received-len'] == int(self.file_props['size']):
# transfer completed
self.rem_fd(fd)
self.disconnect()
self.file_props['error'] = 0
self.file_props['completed'] = True
return 0
# return number of read bytes. It can be used in progressbar
if fd == None:
self.pauses +=1
else:
self.pauses = 0
if self.pauses > 24:
self.file_props['stalled'] = True
else:
self.file_props['stalled'] = False
if fd == None and self.file_props['stalled'] is False:
return None
if self.file_props.has_key('received-len'):
if self.file_props['received-len'] != 0:
return self.file_props['received-len']
return None
def disconnect(self, cb = True):
''' Closes the socket. '''
self._sock.close()
self.connected = False
def send_file(self, file_props):
self.fd = open(file_props['file-name'])
file_props['error'] = 0
file_props['disconnect_cb'] = self.disconnect
file_props['started'] = True
file_props['completed'] = False
file_props['paused'] = False
file_props['stalled'] = False
file_props['received-len'] = 0
def pending_read(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
if self._sock is None:
return False
try:
return select.select([self._sock],[],[],timeout)[0]
except Exception, e:
return False
def pending_connection(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
if self._sock is None:
return False
try:
return select.select([],[self._sock],[],timeout)[0]
except Exception, e:
return False
def _get_auth_buff(self):
''' Message, that we support 1 one auth mechanism:
the 'no auth' mechanism. '''
return struct.pack('!BBB', 0x05, 0x01, 0x00)
def _parse_auth_buff(self, buff):
''' Parse the initial message and create a list of auth
mechanisms '''
auth_mechanisms = []
ver, num_auth = struct.unpack('!BB', buff[:2])
for i in range(num_auth):
mechanism, = struct.unpack('!B', buff[1 + i])
auth_mechanisms.append(mechanism)
return auth_mechanisms
def _get_auth_response(self):
''' socks version(5), number of extra auth methods (we send
0x00 - no auth
) '''
return struct.pack('!BB', 0x05, 0x00)
def _get_connect_buff(self):
''' Connect request by domain name '''
buff = struct.pack('!BBBBB%dsBB' % len(self.host), \
0x05, 0x01, 0x00, 0x03, len(self.host), self.host, \
self.port >> 8, self.port & 0xff)
return buff
def _get_request_buff(self, msg, command = 0x01):
''' Connect request by domain name,
sid sha, instead of domain name (jep 0096) '''
buff = struct.pack('!BBBBB%dsBB' % len(msg), \
0x05, command, 0x00, 0x03, len(msg), msg, 0, 0)
return buff
def _get_nl_byte(self):
''' This is sent between auth and real data '''
return struct.pack('!B', 0x0D)
def _parse_request_buff(self, buff):
try: # don't trust on what comes from the outside
version, req_type, reserved, host_type, = \
struct.unpack('!BBBB', buff[:4])
if host_type == 0x01:
host_arr = struct.unpack('!iiii', buff[4:8])
host, = reduce(lambda e1, e2: str(e1) + "." + str(e2), host_arr)
host_len = len(host)
elif host_type == 0x03:
host_len, = struct.unpack('!B' , buff[4])
host, = struct.unpack('!%ds' % host_len, buff[5:5 + host_len])
portlen = len(buff[host_len + 5:])
if portlen == 1:
port, = struct.unpack('!B', buff[host_len + 5])
elif portlen == 2:
port, = struct.unpack('!H', buff[host_len + 5:])
# file data, comes with auth message (Gaim bug)
else:
port, = struct.unpack('!H', buff[host_len + 5 : host_len + 7])
self.remaining_buff = buff[host_len + 7:]
except:
return (None, None, None)
return (req_type, host, port)
def read_connect(self):
''' connect responce: version, auth method '''
buff = self._recv()
try:
version, method = struct.unpack('!BB', buff)
except:
version, method = None, None
if version != 0x05 or method == 0xff:
self.disconnect()
def _get_sha1_auth(self):
''' get sha of sid + Initiator jid + Target jid '''
if self.file_props.has_key('is_a_proxy'):
return sha.new('%s%s%s' % (self.sid, \
self.file_props['proxy_sender'], \
self.file_props['proxy_receiver'])).hexdigest()
return sha.new('%s%s%s' % (self.sid, self.initiator, self.target)).hexdigest()
class Socks5Sender(Socks5):
''' class for sending file to socket over socks5 '''
def __init__(self, sock_hash, parent, _sock, host = None, port = None):
self.queue_idx = sock_hash
self.queue = parent
Socks5.__init__(self, host, port, None, None, None)
self._sock = _sock
self._sock.setblocking(False)
self._recv = _sock.recv
self._send = _sock.send
self.connected = True
self.state = 1 # waiting for first bytes
self.file_props = None
def send_file(self):
''' start sending the file over verified connection '''
self.fd = open(self.file_props['file-name'])
self.file_props['error'] = 0
self.file_props['disconnect_cb'] = self.disconnect
self.file_props['started'] = True
self.file_props['completed'] = False
self.file_props['paused'] = False
self.file_props['stalled'] = False
self.file_props['connected'] = True
self.file_props['received-len'] = 0
self.pauses = 0
self.file_props = file_props
self.size = 0
return self.write_next()
return self.write_next(initial = True) # initial for nl byte
def main(self):
''' initial requests for verifying the connection '''
if self.state == 1:
buff = self.receive()
if not self.connected:
return -1
mechs = self._parse_auth_buff(buff)
if mechs is None:
return -1 # invalid auth methods received
elif self.state == 2:
self.send_raw(self._get_auth_response())
elif self.state == 3:
buff = self.receive()
(req_type, self.sha_msg, port) = self._parse_request_buff(buff)
if req_type != 0x01:
return -1 # request is not of type 'connect'
elif self.state == 4:
self.send_raw(self._get_request_buff(self.sha_msg, 0x00))
self.state += 1
self.state += 1 # go to the next step
return None
def pending_data(self,timeout=0):
''' Returns true if there is a data ready to be read. '''
def pending_data(self,timeout=0.01):
''' return true if there is a data ready to be read '''
if self._sock is None:
return False
try:
if self.state in [1, 3]:
return self.pending_read()
elif self.state in [2, 4, 5]:
if self.state in [1, 3, 5]:
return self.pending_read(timeout)
elif self.state in [2, 4]:
return True
except Exception, e:
return False
return False
def disconnect(self):
def disconnect(self, cb = True):
''' Closes the socket. '''
# close connection and remove us from the queue
self._sock.close()
self.connected = False
if self.file_props is not None:
self.file_props['connected'] = False
self.file_props['disconnect_cb'] = None
if self.queue is not None:
self.queue.remove_sender(self.queue_idx)
@ -475,7 +655,7 @@ class Socks5Listener:
_sock[0].setblocking(False)
return _sock
def pending_connection(self,timeout=0):
def pending_connection(self,timeout=0.005):
''' Returns true if there is a data ready to be read. '''
if self._serv is None:
return False
@ -487,10 +667,12 @@ class Socks5Listener:
return False
class Socks5Receiver(Socks5):
def __init__(self, host, port, initiator, target, sid, file_props = None):
def __init__(self, streamhost, sid, file_props = None):
self.queue_idx = -1
self.streamhost = streamhost
self.queue = None
self.file_props = file_props
self.connected = False
self.pauses = 0
if not self.file_props:
@ -501,10 +683,38 @@ class Socks5Receiver(Socks5):
self.file_props['completed'] = False
self.file_props['paused'] = False
self.file_props['stalled'] = False
self.file_props['started'] = True
Socks5.__init__(self, host, port, initiator, target, sid)
Socks5.__init__(self, streamhost['host'], int(streamhost['port']),
streamhost['initiator'], streamhost['target'], sid)
def connect(self):
''' create the socket and start the connect loop '''
self._sock=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self._sock.settimeout(5)
# this will not block the GUI
self._sock.setblocking(False)
self.state = 0 # about to be connected
res = self.do_connect()
return res
def do_connect(self):
try:
self._sock.connect((self.host, self.port))
self._sock.setblocking(False)
self._send=self._sock.send
self._recv=self._sock.recv
except Exception, ee:
(errnum, errstr) = ee
if errnum == 111:
self.queue._connection_refused(self.streamhost,
self.file_props, self.queue_idx)
return None
self.buff = ''
self.connected = True
self.file_props['connected'] = True
self.state = 1 # connected
self.queue._socket_connected(self.streamhost, self.file_props)
return 1
def main(self, timeout = 0):
''' begin negotiation. on success 'address' != 0 '''
if self.state == 1:
@ -522,103 +732,63 @@ class Socks5Receiver(Socks5):
buff = self.receive()
if buff == None:
return None
sub_buff = buff[:4]
if len(sub_buff) < 4:
return None
version, command, rsvd, address_type = struct.unpack('!BBBB', buff[:4])
addrlen, address, port = 0, 0, 0
if address_type == 0x03:
addrlen = ord(buff[4])
address = struct.unpack('!%ds' % addrlen, buff[5:addrlen + 5])
portlen = len(buff[addrlen + 5])
portlen = len(buff[addrlen + 5:])
if portlen == 1: # Gaim bug :)
port, = struct.unpack('!B', buff[addrlen + 5])
elif portlen == 2:
port, = struct.unpack('!H', buff[addrlen + 5:])
else:
port, = struct.unpack('!H', buff[addrlen + 5])
port, = struct.unpack('!H', buff[addrlen + 5:addrlen + 7])
self.remaining_buff = buff[addrlen + 7:]
self.state = 5
self.auth_cb(self.auth_param)
return None
if self.state < 5:
if self.queue.on_success:
self.queue.on_success(self.streamhost)
if self.state == 5:
if self.file_props['type'] == 's':
self.fd = open(self.file_props['file-name'])
self.file_props['error'] = 0
self.file_props['disconnect_cb'] = self.disconnect
self.file_props['started'] = True
self.file_props['completed'] = False
self.file_props['paused'] = False
self.file_props['stalled'] = False
self.file_props['received-len'] = 0
self.pauses = 0
self.send_raw(self._get_nl_byte())
self.state = 6
if self.state < 6:
self.state += 1
return None
# we have set the connection, retrieve file
return self.get_file_contents(timeout)
# we have set the connection set up, next - retrieve file
def pending_data(self, timeout=0):
''' Returns true if there is a data ready to be read. ''', self.state
if self._sock is None:
return False
try:
if self.state in [2, 4]:
return self.pending_read()
if self.state in [2, 4, 6]:
return self.pending_read(0.01)
elif self.state in [1, 3, 5]:
return True
except Exception, e:
return False
return False
def get_file_contents(self, timeout):
''' read file contents from socket and write them to file '''
if self.file_props is None or \
self.file_props.has_key('file-name') is False:
self.file_props['error'] = -2
return None
fd = None
while self.pending_read(timeout):
if self.file_props.has_key('fd'):
fd = self.file_props['fd']
else:
fd = open(self.file_props['file-name'],'w')
self.file_props['fd'] = fd
self.file_props['received-len'] = 0
try:
buff = self._recv(MAX_BUFF_LEN)
except Exception, e:
buff = ''
self.file_props['received-len'] += len(buff)
fd.write(buff)
if len(buff) == 0:
# Transfer stopped somehow:
# reset, paused or network error
fd.close()
try:
# file is not complete, remove it
os.remove(self.file_props['file-name'])
except Exception, e:
# unable to remove the incomplete file
pass
self.disconnect()
self.file_props['error'] = -1
return -1
if self.file_props['received-len'] == int(self.file_props['size']):
# transfer completed
fd.close()
self.disconnect()
self.file_props['error'] = 0
self.file_props['completed'] = True
return 0
# return number of read bytes. It can be used in progressbar
if fd == None:
self.pauses +=1
else:
self.pauses = 0
if self.pauses > 24:
self.file_props['stalled'] = True
else:
self.file_props['stalled'] = False
if fd == None and self.file_props['stalled'] is False:
return None
if self.file_props.has_key('received-len'):
if self.file_props['received-len'] != 0:
return self.file_props['received-len']
return None
def disconnect(self):
def disconnect(self, cb = True):
''' Closes the socket. '''
# close connection and remove us from the queue
self._sock.close()
if self._sock:
self._sock.close()
self.connected = False
self.file_props['disconnect_cb'] = None
if cb is True:
self.file_props['disconnect_cb'] = None
if self.queue is not None:
self.queue.remove_receiver(self.queue_idx)