More presence service rework
This commit is contained in:
Dan Williams
parent
d931dca579
commit
17c371119d
@ -26,4 +26,5 @@ sugar/p2p/Makefile
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sugar/p2p/model/Makefile
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sugar/shell/Makefile
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sugar/session/Makefile
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sugar/presence/Makefile
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])
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@ -1,4 +1,4 @@
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SUBDIRS = chat browser p2p shell session
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SUBDIRS = chat browser p2p shell session presence
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bin_SCRIPTS = sugar
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@ -445,27 +445,12 @@ class BuddyChat(Chat):
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del self._chats[self._buddy]
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class BuddyIconRequestHandler(object):
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def __init__(self, group, stream):
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self._group = group
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self._stream = stream
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self._stream.register_handler(self._handle_buddy_icon_request, "get_buddy_icon")
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def _handle_buddy_icon_request(self):
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"""XMLRPC method, return the owner's icon encoded with base64."""
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icon = self._group.get_owner().get_icon()
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if icon:
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return base64.b64encode(icon)
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return ''
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class GroupChat(Chat):
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def __init__(self):
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self._group = Group.get_from_id('local')
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self._act_name = "Chat"
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self._chats = {}
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self._buddy_icon_tries = 0
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Chat.__init__(self, self)
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def get_group(self):
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@ -482,7 +467,6 @@ class GroupChat(Chat):
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# specific buddy chats
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buddy_service = Service(name, CHAT_SERVICE_TYPE, CHAT_SERVICE_PORT)
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self._buddy_stream = Stream.new_from_service(buddy_service, self._group)
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self._buddy_icon_handler = BuddyIconRequestHandler(self._group, self._buddy_stream)
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self._buddy_stream.set_data_listener(getattr(self, "_buddy_recv_message"))
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buddy_service.register(self._group)
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@ -1,44 +1,49 @@
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import xmlrpclib
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import socket
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import traceback
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import random
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import network
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from MostlyReliablePipe import MostlyReliablePipe
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from sugar.presence import Service
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class Stream(object):
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def __init__(self, service, group):
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if not service:
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raise ValueError("service must be valid")
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def __init__(self, service):
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if not isinstance(service, Service.Service):
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raise ValueError("service must be valid.")
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if not service.get_port():
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raise ValueError("service must have an address.")
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self._service = service
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self._group = group
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self._owner_nick_name = self._group.get_owner().get_nick_name()
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self._port = self._service.get_port()
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self._reader_port = self._service.get_port()
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self._writer_port = self._reader_port
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self._address = self._service.get_address()
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self._callback = None
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def new_from_service(service, group):
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if service.is_multicast():
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return MulticastStream(service, group)
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def new_from_service(service, start_reader=True):
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if not isinstance(service, Service.Service):
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raise ValueError("service must be valid.")
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if service.is_multicast_service():
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return MulticastStream(service)
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else:
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return UnicastStream(service, group)
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return UnicastStream(service, start_reader)
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new_from_service = staticmethod(new_from_service)
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def set_data_listener(self, callback):
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self._callback = callback
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def recv(self, nick_name, data):
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if nick_name != self._owner_nick_name:
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if self._callback:
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self._callback(self._group.get_buddy(nick_name), data)
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def _recv(self, address, data):
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if self._callback:
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self._callback(data)
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class UnicastStreamWriter(object):
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def __init__(self, stream, service, owner_nick_name):
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def __init__(self, stream, service):
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# set up the writer
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if not service:
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if not isinstance(service, Service.Service):
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raise ValueError("service must be valid")
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self._service = service
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self._owner_nick_name = owner_nick_name
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if not service.get_address():
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raise ValueError("service must have a valid address.")
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self._address = self._service.get_address()
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self._port = self._service.get_port()
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self._xmlrpc_addr = "http://%s:%d" % (self._address, self._port)
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@ -47,7 +52,7 @@ class UnicastStreamWriter(object):
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def write(self, xmlrpc_data):
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"""Write some data to the default endpoint of this pipe on the remote server."""
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try:
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self._writer.message(None, None, self._owner_nick_name, xmlrpc_data)
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self._writer.message(None, None, xmlrpc_data)
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return True
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except (socket.error, xmlrpclib.Fault, xmlrpclib.ProtocolError):
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traceback.print_exc()
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@ -65,58 +70,79 @@ class UnicastStreamWriter(object):
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class UnicastStream(Stream):
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def __init__(self, service, group):
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Stream.__init__(self, service, group)
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self._setup()
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def __init__(self, service, start_reader=True):
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"""Initializes the stream. If the 'start_reader' argument is True,
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the stream will initialize and start a new stream reader, if it
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is False, no reader will be created and the caller must call the
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start_reader() method to start the stream reader and be able to
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receive any data from the stream."""
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Stream.__init__(self, service)
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if start_reader:
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self.start_reader()
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def _setup(self):
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def start_reader(self, update_service_port=True):
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"""Start the stream's reader, which for UnicastStream objects is
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and XMLRPC server. If there's a port conflict with some other
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service, the reader will try to find another port to use instead.
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Returns the port number used for the reader."""
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# Set up the reader
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started = False
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tries = 10
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port = self._service.get_port()
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self._reader = None
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while not started and tries > 0:
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try:
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self._reader = network.GlibXMLRPCServer(("", port))
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self._reader = network.GlibXMLRPCServer(("", self._reader_port))
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self._reader.register_function(self._message, "message")
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if update_service_port:
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self._service.set_port(self._reader_port) # Update the service's port
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started = True
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except(socket.error):
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port = port + 1
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self._reader_port = random.randint(self._reader_port + 1, 65500)
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tries = tries - 1
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if self._reader is None:
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print 'Could not start xmlrpc server.'
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self._service.set_port(port)
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print 'Could not start stream reader.'
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return self._reader_port
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def _message(self, nick_name, message):
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def _message(self, message):
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"""Called by the XMLRPC server when network data arrives."""
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self.recv(nick_name, message)
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address = network.get_authinfo()
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self._recv(address, message)
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return True
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def register_handler(self, handler, name):
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def register_reader_handler(self, handler, name):
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"""Register a custom message handler with the reader. This call
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adds a custom XMLRPC method call with the name 'name' to the reader's
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XMLRPC server, which then calls the 'handler' argument back when
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a method call for it arrives over the network."""
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if name == "message":
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raise ValueError("Handler name 'message' is a reserved handler.")
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self._reader.register_function(handler, name)
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def new_writer(self, service):
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return UnicastStreamWriter(self, service, self._owner_nick_name)
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"""Return a new stream writer object."""
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return UnicastStreamWriter(self, service)
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class MulticastStream(Stream):
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def __init__(self, service, group):
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Stream.__init__(self, service, group)
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self._address = self._service.get_group_address()
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self._setup()
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def __init__(self, service):
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Stream.__init__(self, service)
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self._internal_start_reader()
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def _setup(self):
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self._pipe = MostlyReliablePipe('', self._address, self._port, self._recv_data_cb)
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def start_reader(self):
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return self._reader_port
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def _internal_start_reader(self):
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if not service.get_address():
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raise ValueError("service must have a valid address.")
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self._pipe = MostlyReliablePipe('', self._address, self._reader_port,
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self._recv_data_cb)
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self._pipe.start()
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def write(self, data):
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self._pipe.send(self._owner_nick_name + " |**| " + data)
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self._pipe.send(data)
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def _recv_data_cb(self, addr, data, user_data=None):
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[ nick_name, data ] = data.split(" |**| ", 2)
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self.recv(nick_name, data)
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def _recv_data_cb(self, address, data, user_data=None):
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self._recv(address, data)
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def new_writer(self, service=None):
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return self
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@ -1,46 +1,108 @@
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import pwd
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import os
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import base64
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import pygtk
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pygtk.require('2.0')
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import gtk
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import gtk, gobject
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from sugar.p2p import Stream
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from sugar.p2p import network
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#from sugar import env
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PRESENCE_SERVICE_TYPE = "_presence_olpc._tcp"
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class Buddy(object):
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class Buddy(gobject.GObject):
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"""Represents another person on the network and keeps track of the
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activities and resources they make available for sharing."""
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__gsignals__ = {
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'icon-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([])),
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'service-added': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT])),
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'service-removed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT]))
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}
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def __init__(self, service):
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gobject.GObject.__init__(self)
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self._services = {}
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self._nick_name = service.get_name()
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self._address = service.get_address()
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self._valid = False
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self._icon = None
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self._icon_tries = 0
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self._owner = False
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self.add_service(service)
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def _request_buddy_icon_cb(self, result_status, response, user_data):
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"""Callback when icon request has completed."""
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icon = response
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service = user_data
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if result_status == network.RESULT_SUCCESS:
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if icon and len(icon):
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icon = base64.b64decode(icon)
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print "Buddy icon for '%s' is size %d" % (self._nick_name, len(icon))
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self.set_icon(icon)
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if (result_status == network.RESULT_FAILED or not icon) and self._icon_tries < 3:
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self._icon_tries = self._icon_tries + 1
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print "Failed to retrieve buddy icon for '%s' on try %d of %d" % (self._nick_name, \
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self._icon_tries, 3)
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gobject.timeout_add(1000, self._request_buddy_icon, service)
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return False
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def _request_buddy_icon(self, service):
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"""Contact the buddy to retrieve the buddy icon."""
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buddy_stream = Stream.Stream.new_from_service(service, start_reader=False)
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writer = buddy_stream.new_writer(service)
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success = writer.custom_request("get_buddy_icon", self._request_buddy_icon_cb, service)
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if not success:
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del writer, buddy_stream
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gobject.timeout_add(1000, self._request_buddy_icon, service)
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return False
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def add_service(self, service):
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"""Adds a new service to this buddy's service list."""
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"""Adds a new service to this buddy's service list, returning
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True if the service was successfully added, and False if it was not."""
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if service.get_name() != self._nick_name:
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return False
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if service.get_address() != self._address:
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return False
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if service.get_type() in self._services.keys():
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return
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self._services.keys[service.get_type()] = service
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# FIXME: send out signal for new service found
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return False
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self._services[service.get_type()] = service
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if self._valid:
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self.emit("service-added", service)
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if service.get_type() == PRESENCE_SERVICE_TYPE:
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# A buddy isn't valid until its official presence
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# service has been found and resolved
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self._valid = True
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self._request_buddy_icon(service)
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return True
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def remove_service(self, service):
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"""Remove a service from a buddy; ie, the activity was closed
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or the buddy went away."""
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if service.get_type() in self._services.keys():
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if service.get_address() != self._address:
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return
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if service.get_name() != self._nick_name:
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return
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if self._services.has_key(service.get_type()):
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if self._valid:
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self.emit("service-removed", service)
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del self._services[service.get_type()]
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if service.get_type() == PRESENCE_SERVICE_TYPE:
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self._valid = False
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def get_service_of_type(self, stype):
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"""Return a service of a certain type, or None if the buddy
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doesn't provide that service."""
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if self._services.has_key(stype):
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return self._services[stype]
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return None
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def is_valid(self):
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"""Return whether the buddy is valid or not. A buddy is
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not valid until its official presence service has been found
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@ -63,65 +125,23 @@ class Buddy(object):
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def get_address(self):
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return self._address
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def add_service(self, service):
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if service.get_name() != self._nick_name:
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return False
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if service.get_address() != self._address:
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return False
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if self._services.has_key(service.get_type()):
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return False
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self._services[service.get_type()] = service
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def remove_service(self, stype):
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if self._services.has_key(stype):
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del self._services[stype]
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def get_service(self, stype):
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if self._services.has_key(stype):
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return self._services[stype]
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return None
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def get_nick_name(self):
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return self._nick_name
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def set_icon(self, icon):
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"""Can only set icon for other buddies. The Owner
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takes care of setting it's own icon."""
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self._icon = icon
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# FIXME: do callbacks for icon-changed
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if icon != self._icon:
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self._icon = icon
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self.emit("icon-changed")
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def is_owner(self):
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return self._owner
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class Owner(Buddy):
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"""Class representing the owner of this machine/instance."""
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def __init__(self):
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nick = env.get_nick_name()
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if not nick:
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nick = pwd.getpwuid(os.getuid())[0]
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if not nick or not len(nick):
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nick = "n00b"
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Buddy.__init__(self)
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user_dir = env.get_user_dir()
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if not os.path.exists(user_dir):
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try:
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os.makedirs(user_dir)
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except OSError:
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print 'Could not create user directory.'
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for fname in os.listdir(user_dir):
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if not fname.startswith("buddy-icon."):
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continue
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fd = open(os.path.join(user_dir, fname), "r")
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self._icon = fd.read()
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fd.close()
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break
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def set_icon(self, icon):
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"""Can only set icon in constructor for now."""
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pass
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def add_service(self, service):
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"""Do nothing here, since all services we need to know about
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are registered with us by our group."""
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pass
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"""Class representing the owner of the machine. This is the client
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portion of the Owner, paired with the server portion in Owner.py."""
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def __init__(self, service):
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Buddy.__init__(self, service)
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self._owner = True
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@ -2,16 +2,40 @@ import threading
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import avahi, dbus, dbus.glib, dbus.dbus_bindings, gobject
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import Buddy
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import Service
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import Group
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import os
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ACTION_SERVICE_APPEARED = 'appeared'
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ACTION_SERVICE_DISAPPEARED = 'disappeared'
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def _get_local_ip_address(ifname):
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"""Call Linux specific bits to retrieve our own IP address."""
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import socket
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import sys
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import fcntl
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class PresenceService(object):
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addr = None
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SIOCGIFADDR = 0x8915
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sockfd = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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try:
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ifreq = (ifname + '\0'*32)[:32]
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result = fcntl.ioctl(sockfd.fileno(), SIOCGIFADDR, ifreq)
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addr = socket.inet_ntoa(result[20:24])
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except IOError, exc:
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print "Error getting IP address: %s" % exc
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sockfd.close()
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return addr
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class PresenceService(gobject.GObject):
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"""Object providing information about the presence of Buddies
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and what activities they make available to others."""
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__gsignals__ = {
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'buddy-appeared': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT])),
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'buddy-disappeared': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT]))
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}
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__lock = threading.Lock()
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__instance = None
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@ -26,12 +50,20 @@ class PresenceService(object):
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get_instance = staticmethod(get_instance)
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|
||||
def __init__(self, debug=False):
|
||||
gobject.GObject.__init__(self)
|
||||
|
||||
self._debug = debug
|
||||
self._lock = threading.Lock()
|
||||
self._started = False
|
||||
|
||||
# interface -> IP address: interfaces we've gotten events on so far
|
||||
self._local_addrs = {}
|
||||
|
||||
# nick -> Buddy: buddies we've found
|
||||
self._buddies = {}
|
||||
# Our owner object
|
||||
self._owner = None
|
||||
|
||||
# group UID -> Group: groups we've found
|
||||
self._groups = {}
|
||||
|
||||
@ -77,6 +109,10 @@ class PresenceService(object):
|
||||
if self._debug:
|
||||
print "PresenceService(%d): %s" % (os.getpid(), msg)
|
||||
|
||||
def get_owner(self):
|
||||
"""Return the owner of this machine/instance, if we've recognized them yet."""
|
||||
return self._owner
|
||||
|
||||
def _resolve_service_error_handler(self, err):
|
||||
self._log("error resolving service: %s" % err)
|
||||
|
||||
@ -97,6 +133,49 @@ class PresenceService(object):
|
||||
found.append(service)
|
||||
return found
|
||||
|
||||
def _is_special_service_type(self, stype):
|
||||
"""Return True if the service type is a special, internal service
|
||||
type, and False if it's not."""
|
||||
if stype == Buddy.PRESENCE_SERVICE_TYPE:
|
||||
return True
|
||||
if Group.is_group_service_type(stype):
|
||||
return True
|
||||
return False
|
||||
|
||||
def _handle_new_service_for_buddy(self, service):
|
||||
"""Deal with a new discovered service object."""
|
||||
# Once a service is resolved, we match it up to an existing buddy,
|
||||
# or create a new Buddy if this is the first service known about the buddy
|
||||
added = was_valid = False
|
||||
name = service.get_name()
|
||||
buddy = None
|
||||
try:
|
||||
buddy = self._buddies[name]
|
||||
was_valid = buddy.is_valid()
|
||||
added = buddy.add_service(service)
|
||||
except KeyError:
|
||||
# Should this service mark the owner?
|
||||
if service.get_address() in self._local_addrs.values():
|
||||
buddy = Buddy.Owner(service)
|
||||
self._owner = buddy
|
||||
else:
|
||||
buddy = Buddy.Buddy(service)
|
||||
self._buddies[name] = buddy
|
||||
added = True
|
||||
if not was_valid and buddy.is_valid():
|
||||
self.emit("buddy-appeared", buddy)
|
||||
return buddy
|
||||
|
||||
def _handle_new_service_for_group(self, service, buddy):
|
||||
# If the serivce is a group service, merge it into our groups list
|
||||
if not buddy:
|
||||
return
|
||||
group = None
|
||||
if not self._groups.has_key(service.get_type()):
|
||||
group = Group.Group(service)
|
||||
else:
|
||||
group = self._groups[service.get_type()]
|
||||
|
||||
def _resolve_service_reply_cb(self, interface, protocol, name, stype, domain, host, aprotocol, address, port, txt, flags):
|
||||
"""When the service discovery finally gets here, we've got enough information about the
|
||||
service to assign it to a buddy."""
|
||||
@ -108,7 +187,6 @@ class PresenceService(object):
|
||||
stype=stype, domain=domain)
|
||||
if not len(found):
|
||||
return False
|
||||
|
||||
for service in found:
|
||||
self._unresolved_services.remove(service)
|
||||
|
||||
@ -118,23 +196,11 @@ class PresenceService(object):
|
||||
service.set_port(port)
|
||||
service.set_properties(txt)
|
||||
|
||||
# Once a service is resolved, we match it up to an existing buddy,
|
||||
# or create a new Buddy if this is the first service known about the buddy
|
||||
added = was_valid = False
|
||||
try:
|
||||
buddy = self._buddies[name]
|
||||
was_valid = buddy.is_valid()
|
||||
added = buddy.add_service(service)
|
||||
except KeyError:
|
||||
buddy = Buddy.Buddy(service)
|
||||
self._buddies[name] = buddy
|
||||
added = True
|
||||
if not was_valid and buddy.is_valid():
|
||||
# FIXME: send out "new buddy" signals
|
||||
pass
|
||||
if added:
|
||||
# FIXME: send out buddy service added signals
|
||||
pass
|
||||
# Merge the service into our buddy and group lists, if needed
|
||||
buddy = self._handle_new_service_for_buddy(service)
|
||||
if service.is_group_service():
|
||||
self._handle_new_service_for_group(service, buddy)
|
||||
|
||||
return False
|
||||
|
||||
def _resolve_service_reply_cb_glue(self, interface, protocol, name, stype, domain, host, aprotocol, address, port, txt, flags):
|
||||
@ -160,8 +226,16 @@ class PresenceService(object):
|
||||
service = Service.Service(name, stype, domain)
|
||||
self._unresolved_services.append(service)
|
||||
|
||||
# Find out the IP address of this interface, if we haven't already
|
||||
if interface not in self._local_addrs.keys():
|
||||
ifname = self._server.GetNetworkInterfaceNameByIndex(interface)
|
||||
if ifname:
|
||||
addr = _get_local_ip_address(ifname)
|
||||
if addr:
|
||||
self._local_addrs[interface] = addr
|
||||
|
||||
# If we care about the service right now, resolve it
|
||||
if stype in self._allowed_service_types or stype == Buddy.PRESENCE_SERVICE_TYPE:
|
||||
if stype in self._allowed_service_types or self._is_special_service_type(stype):
|
||||
gobject.idle_add(self._resolve_service, interface, protocol, name, stype, domain, flags)
|
||||
return False
|
||||
|
||||
@ -170,24 +244,19 @@ class PresenceService(object):
|
||||
|
||||
def _service_disappeared_cb(self, interface, protocol, name, stype, domain, flags):
|
||||
self._log("service '%s' of type '%s' in domain '%s' on %i.%i disappeared." % (name, stype, domain, interface, protocol))
|
||||
# Remove the service from our unresolved services list
|
||||
found = self._find_service(self._unresolved_services, name=name,
|
||||
stype=stype, domain=domain)
|
||||
|
||||
buddy = None
|
||||
try:
|
||||
# Remove the service from the buddy
|
||||
buddy = self._buddies[name]
|
||||
# FIXME: need to be more careful about how we remove services
|
||||
# from buddies; this could be spoofed
|
||||
service = buddy.get_service_of_type(stype)
|
||||
buddy.remove_service(service)
|
||||
if not buddy.is_valid():
|
||||
self.emit("buddy-disappeared", buddy)
|
||||
del self._buddies[name]
|
||||
except KeyError:
|
||||
pass
|
||||
|
||||
# Remove the service from the buddy
|
||||
if buddy:
|
||||
buddy.remove_service(found[0])
|
||||
# FIXME: send buddy service remove signals
|
||||
if not buddy.is_valid():
|
||||
del self._buddies[name]
|
||||
# FIXME: send buddy disappeared message
|
||||
|
||||
for service in found:
|
||||
self._unresolved_services.remove(service)
|
||||
return False
|
||||
@ -246,9 +315,11 @@ class PresenceService(object):
|
||||
def track_service_type(self, stype):
|
||||
"""Requests that the Presence service look for and recognize
|
||||
a certain mDNS service types."""
|
||||
if not self._started:
|
||||
raise RuntimeError("presence service must be started first.")
|
||||
if not type(stype) == type(""):
|
||||
raise ValueError("service type must be a string.")
|
||||
if stype == Buddy.PRESENCE_SERVICE_TYPE:
|
||||
if self._is_special_service_type(stype):
|
||||
return
|
||||
if stype in self._allowed_service_types:
|
||||
return
|
||||
@ -263,6 +334,8 @@ class PresenceService(object):
|
||||
|
||||
def untrack_service_type(self, stype):
|
||||
"""Stop tracking a certain mDNS service."""
|
||||
if not self._started:
|
||||
raise RuntimeError("presence service must be started first.")
|
||||
if not type(stype) == type(""):
|
||||
raise ValueError("service type must be a string.")
|
||||
if name in self._allowed_service_types:
|
||||
@ -270,19 +343,25 @@ class PresenceService(object):
|
||||
|
||||
def register_service(self, service):
|
||||
"""Register a new service, advertising it to other Buddies on the network."""
|
||||
if not self._started:
|
||||
raise RuntimeError("presence service must be started first.")
|
||||
|
||||
rs_name = service.get_name()
|
||||
rs_stype = service.get_type()
|
||||
rs_port = service.get_port()
|
||||
if type(rs_port) != type(1) and rs_port <= 1024:
|
||||
raise ValueError("invalid service port.")
|
||||
rs_props = service.get_properties()
|
||||
rs_domain = service.get_domain()
|
||||
if not rs_domain or not len(rs_domain):
|
||||
rs_domain = ""
|
||||
self._log("registered service name '%s' type '%s' on port %d with args %s" % (rs_name, rs_stype, rs_port, rs_props))
|
||||
|
||||
try:
|
||||
group = dbus.Interface(self._bus.get_object(avahi.DBUS_NAME, self._server.EntryGroupNew()), avahi.DBUS_INTERFACE_ENTRY_GROUP)
|
||||
info = ["%s=%s" % (k, v) for k, v in rs_props.items()]
|
||||
group.AddService(avahi.IF_UNSPEC, avahi.PROTO_UNSPEC, 0, rs_name, rs_stype,
|
||||
"", "", # domain, host (let the system figure it out)
|
||||
rs_domain, "", # let Avahi figure the 'host' out
|
||||
dbus.UInt16(rs_port), info,)
|
||||
group.Commit()
|
||||
except dbus.dbus_bindings.DBusException, exc:
|
||||
@ -295,11 +374,19 @@ class PresenceService(object):
|
||||
return group
|
||||
|
||||
def get_buddy_by_nick_name(self, nick_name):
|
||||
"""Look up and return a buddy by nickname."""
|
||||
if self._buddies.has_key(nick_name):
|
||||
return self._buddies[nick_name]
|
||||
return None
|
||||
|
||||
def get_buddy_by_address(self, address):
|
||||
for buddy in self._buddies.values():
|
||||
if buddy.get_address == address:
|
||||
return buddy
|
||||
return None
|
||||
|
||||
def get_buddies(self):
|
||||
"""Return the entire buddy list."""
|
||||
return self._buddies.values()
|
||||
|
||||
#################################################################
|
||||
@ -347,6 +434,7 @@ class PresenceServiceTestCase(unittest.TestCase):
|
||||
buddy = ps.get_buddy_by_nick_name("Paul")
|
||||
assert buddy, "The registered buddy was not found after 2 seconds!"
|
||||
assert buddy.is_valid(), "The buddy was invalid, since no presence was advertised."
|
||||
assert buddy.is_owner() == True, "The buddy was not the owner, but it should be!"
|
||||
|
||||
def addToSuite(suite):
|
||||
suite.addTest(PresenceServiceTestCase("testNoServices"))
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
import avahi
|
||||
import Group
|
||||
|
||||
def _txt_to_dict(txt):
|
||||
"""Convert an avahi-returned TXT record formatted
|
||||
@ -17,6 +18,18 @@ def _txt_to_dict(txt):
|
||||
prop_dict[key] = value
|
||||
return prop_dict
|
||||
|
||||
def _is_multicast_address(address):
|
||||
"""Simple numerical check for whether an IP4 address
|
||||
is in the range for multicast addresses or not."""
|
||||
if not address:
|
||||
return False
|
||||
if address[3] != '.':
|
||||
return False
|
||||
first = int(address[:3])
|
||||
if first >= 224 and first <= 239:
|
||||
return True
|
||||
return False
|
||||
|
||||
class Service(object):
|
||||
"""Encapsulates information about a specific ZeroConf/mDNS
|
||||
service as advertised on the network."""
|
||||
@ -30,11 +43,15 @@ class Service(object):
|
||||
if not stype.endswith("._tcp") and not stype.endswith("._udp"):
|
||||
raise ValueError("must specify a TCP or UDP service type.")
|
||||
|
||||
if not domain or (type(domain) != type("") and type(domain) != type(u"")):
|
||||
if type(domain) != type("") and type(domain) != type(u""):
|
||||
raise ValueError("must specify a domain.")
|
||||
if domain != "local" and domain != u"local":
|
||||
if len(domain) and domain != "local" and domain != u"local":
|
||||
raise ValueError("must use the 'local' domain (for now).")
|
||||
|
||||
# Group services must have multicast addresses
|
||||
if Group.is_group_service_type(stype) and address and not _is_multicast_address(address):
|
||||
raise ValueError("group service type specified, but address was not multicast.")
|
||||
|
||||
self._name = name
|
||||
self._stype = stype
|
||||
self._domain = domain
|
||||
@ -46,17 +63,38 @@ class Service(object):
|
||||
self.set_properties(properties)
|
||||
|
||||
def get_name(self):
|
||||
"""Return the service's name, usually that of the
|
||||
buddy who provides it."""
|
||||
return self._name
|
||||
|
||||
def is_multicast_service(self):
|
||||
"""Return True if the service's address is a multicast address,
|
||||
False if it is not."""
|
||||
return _is_multicast_address(self._address)
|
||||
|
||||
def is_group_service(self):
|
||||
"""Return True if the service represents a Group,
|
||||
False if it does not."""
|
||||
return Group.is_group_service_type(self._stype)
|
||||
|
||||
def get_one_property(self, key):
|
||||
"""Return one property of the service, or None
|
||||
if the property was not found. Cannot distinguish
|
||||
between lack of a property, and a property value that
|
||||
actually is None."""
|
||||
if key in self._properties.keys():
|
||||
return self._properties[key]
|
||||
return None
|
||||
|
||||
def get_properties(self):
|
||||
"""Return a python dictionary of all the service's
|
||||
properties."""
|
||||
return self._properties
|
||||
|
||||
def set_properties(self, properties):
|
||||
"""Set the service's properties from either an Avahi
|
||||
TXT record (a list of lists of integers), or a
|
||||
python dictionary."""
|
||||
self._properties = {}
|
||||
if type(properties) == type([]):
|
||||
self._properties = _txt_to_dict(properties)
|
||||
@ -64,6 +102,7 @@ class Service(object):
|
||||
self._properties = properties
|
||||
|
||||
def get_type(self):
|
||||
"""Return the service's service type."""
|
||||
return self._stype
|
||||
|
||||
def get_port(self):
|
||||
@ -83,16 +122,14 @@ class Service(object):
|
||||
raise ValueError("must specify a valid address.")
|
||||
if not len(address):
|
||||
raise ValueError("must specify a valid address.")
|
||||
if Group.is_group_service_type(self._stype) and not _is_multicast_address(address):
|
||||
raise ValueError("group service type specified, but address was not multicast.")
|
||||
self._address = address
|
||||
|
||||
def get_domain(self):
|
||||
"""Return the ZeroConf/mDNS domain the service was found in."""
|
||||
return self._domain
|
||||
|
||||
def is_olpc_service(self):
|
||||
if self._stype.endswith("._olpc._udp") or self._stype.endswith(".olpc._tcp"):
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
#################################################################
|
||||
# Tests
|
||||
@ -138,6 +175,10 @@ class ServiceTestCase(unittest.TestCase):
|
||||
# Only accept local for now
|
||||
self._test_init_fail(self._DEF_NAME, self._DEF_STYPE, "foobar", self._DEF_ADDRESS,
|
||||
self._DEF_PORT, self._DEF_PROPS, "invalid domain")
|
||||
# Make sure "" works
|
||||
service = Service(self._DEF_NAME, self._DEF_STYPE, "", self._DEF_ADDRESS,
|
||||
self._DEF_PORT, self._DEF_PROPS)
|
||||
assert service, "Empty domain was not accepted!"
|
||||
|
||||
def testAddress(self):
|
||||
self._test_init_fail(self._DEF_NAME, self._DEF_STYPE, self._DEF_DOMAIN, [],
|
||||
@ -186,6 +227,30 @@ class ServiceTestCase(unittest.TestCase):
|
||||
value = service.get_one_property(key)
|
||||
assert value is not None and value == expected_value, "service properties weren't correct after init."
|
||||
|
||||
def testGroupService(self):
|
||||
# Valid group service type, non-multicast address
|
||||
group_stype = "_af5e5a7c998e89b9a_group_olpc._udp"
|
||||
self._test_init_fail(self._DEF_NAME, group_stype, self._DEF_DOMAIN, self._DEF_ADDRESS,
|
||||
self._DEF_PORT, self._DEF_PROPS, "group service type, but non-multicast address")
|
||||
|
||||
# Valid group service type, None address
|
||||
service = Service(self._DEF_NAME, group_stype, self._DEF_DOMAIN, None,
|
||||
self._DEF_PORT, self._DEF_PROPS)
|
||||
assert service.get_address() == None, "address was not None as expected!"
|
||||
# Set address to invalid multicast address
|
||||
try:
|
||||
service.set_address(self._DEF_ADDRESS)
|
||||
except ValueError, exc:
|
||||
pass
|
||||
else:
|
||||
self.fail("expected a ValueError for invalid address.")
|
||||
|
||||
# Valid group service type and multicast address, ensure it works
|
||||
mc_addr = "224.0.0.34"
|
||||
service = Service(self._DEF_NAME, group_stype, self._DEF_DOMAIN, mc_addr,
|
||||
self._DEF_PORT, self._DEF_PROPS)
|
||||
assert service.get_address() == mc_addr, "address was not expected address!"
|
||||
|
||||
def addToSuite(suite):
|
||||
suite.addTest(ServiceTestCase("testName"))
|
||||
suite.addTest(ServiceTestCase("testType"))
|
||||
@ -195,6 +260,7 @@ class ServiceTestCase(unittest.TestCase):
|
||||
suite.addTest(ServiceTestCase("testGoodInit"))
|
||||
suite.addTest(ServiceTestCase("testAvahiProperties"))
|
||||
suite.addTest(ServiceTestCase("testBoolProperty"))
|
||||
suite.addTest(ServiceTestCase("testGroupService"))
|
||||
addToSuite = staticmethod(addToSuite)
|
||||
|
||||
|
||||
|
||||
@ -3,4 +3,5 @@ sugar_PYTHON = \
|
||||
__init__.py \
|
||||
activity.py \
|
||||
shell.py \
|
||||
PresenceWindow.py
|
||||
PresenceWindow.py \
|
||||
Owner.py
|
||||
|
||||
@ -3,8 +3,8 @@ pygtk.require('2.0')
|
||||
import gtk
|
||||
import gobject
|
||||
|
||||
from sugar.p2p.Group import Group
|
||||
from sugar.p2p.Stream import Stream
|
||||
from sugar.presence.PresenceService import PresenceService
|
||||
|
||||
class PresenceWindow(gtk.Window):
|
||||
_MODEL_COL_NICK = 0
|
||||
@ -14,10 +14,11 @@ class PresenceWindow(gtk.Window):
|
||||
def __init__(self):
|
||||
gtk.Window.__init__(self)
|
||||
|
||||
self._group = Group.get_from_id('local')
|
||||
self._group.add_presence_listener(self._on_group_presence_event)
|
||||
self._group.add_service_listener(self._on_group_service_event)
|
||||
self._group.join()
|
||||
self._pservice = PresenceService.get_instance()
|
||||
self._pservice.connect("buddy-appeared", self._on_buddy_appeared_cb)
|
||||
self._pservice.connect("buddy-disappeared", self._on_buddy_disappeared_cb)
|
||||
self._pservice.set_debug(True)
|
||||
self._pservice.start()
|
||||
|
||||
self._setup_ui()
|
||||
|
||||
@ -79,62 +80,25 @@ class PresenceWindow(gtk.Window):
|
||||
self._chats[buddy] = chat
|
||||
chat.connect_to_shell()
|
||||
|
||||
def _request_buddy_icon_cb(self, result_status, response, user_data):
|
||||
icon = response
|
||||
buddy = user_data
|
||||
if result_status == network.RESULT_SUCCESS:
|
||||
if icon and len(icon):
|
||||
icon = base64.b64decode(icon)
|
||||
print "Buddy icon for '%s' is size %d" % (buddy.get_nick_name(), len(icon))
|
||||
buddy.set_icon(icon)
|
||||
|
||||
if (result_status == network.RESULT_FAILED or not icon) and self._buddy_icon_tries < 3:
|
||||
self._buddy_icon_tries = self._buddy_icon_tries + 1
|
||||
print "Failed to retrieve buddy icon for '%s' on try %d of %d" % (buddy.get_nick_name(), \
|
||||
self._buddy_icon_tries, 3)
|
||||
gobject.timeout_add(1000, self._request_buddy_icon, buddy)
|
||||
return False
|
||||
|
||||
def _request_buddy_icon(self, buddy):
|
||||
# FIXME need to use the new presence service when it's done
|
||||
service = buddy.get_service('_olpc_chat._tcp')
|
||||
buddy_stream = Stream.new_from_service(service, self._group)
|
||||
writer = buddy_stream.new_writer(service)
|
||||
icon = writer.custom_request("get_buddy_icon", self._request_buddy_icon_cb, buddy)
|
||||
|
||||
def _on_group_service_event(self, action, service):
|
||||
if action == Group.SERVICE_ADDED:
|
||||
# Look for the olpc chat service
|
||||
# FIXME need to use the new presence service when it's done
|
||||
if service.get_type() == '_olpc_chat._tcp':
|
||||
# Find the buddy this service belongs to
|
||||
buddy = self._group.get_buddy(service.get_name())
|
||||
if buddy and buddy.get_address() == service.get_address():
|
||||
# Try to get the buddy's icon
|
||||
if buddy.get_nick_name() != self._group.get_owner().get_nick_name():
|
||||
print "Requesting buddy icon from '%s'." % buddy.get_nick_name()
|
||||
gobject.idle_add(self._request_buddy_icon, buddy)
|
||||
elif action == Group.SERVICE_REMOVED:
|
||||
pass
|
||||
|
||||
def __buddy_icon_changed_cb(self, buddy):
|
||||
it = self._get_iter_for_buddy(buddy)
|
||||
self._buddy_list_model.set(it, self._MODEL_COL_ICON, buddy.get_icon_pixbuf())
|
||||
|
||||
def _on_group_presence_event(self, action, buddy):
|
||||
if buddy.get_nick_name() == self._group.get_owner().get_nick_name():
|
||||
def _on_buddy_appeared_cb(self, pservice, buddy):
|
||||
if buddy.is_owner():
|
||||
# Do not show ourself in the buddy list
|
||||
pass
|
||||
elif action == Group.BUDDY_JOIN:
|
||||
aniter = self._buddy_list_model.append(None)
|
||||
self._buddy_list_model.set(aniter,
|
||||
self._MODEL_COL_NICK, buddy.get_nick_name(),
|
||||
self._MODEL_COL_BUDDY, buddy)
|
||||
buddy.connect('icon-changed', self.__buddy_icon_changed_cb)
|
||||
elif action == Group.BUDDY_LEAVE:
|
||||
aniter = self._get_iter_for_buddy(buddy)
|
||||
if aniter:
|
||||
self._buddy_list_model.remove(aniter)
|
||||
return
|
||||
|
||||
aniter = self._buddy_list_model.append(None)
|
||||
self._buddy_list_model.set(aniter,
|
||||
self._MODEL_COL_NICK, buddy.get_nick_name(),
|
||||
self._MODEL_COL_BUDDY, buddy)
|
||||
buddy.connect('icon-changed', self.__buddy_icon_changed_cb)
|
||||
|
||||
def _on_buddy_disappeared_cb(self, pservice, buddy):
|
||||
aniter = self._get_iter_for_buddy(buddy)
|
||||
if aniter:
|
||||
self._buddy_list_model.remove(aniter)
|
||||
|
||||
def _get_iter_for_buddy(self, buddy):
|
||||
aniter = self._buddy_list_model.get_iter_first()
|
||||
|
||||
@ -8,6 +8,7 @@ import gtk
|
||||
import pango
|
||||
|
||||
from sugar.shell.PresenceWindow import PresenceWindow
|
||||
from sugar.shell.Owner import ShellOwner
|
||||
|
||||
activity_counter = 0
|
||||
|
||||
@ -240,6 +241,9 @@ class ActivityContainer(dbus.service.Object):
|
||||
|
||||
self.current_activity = None
|
||||
|
||||
# Create our owner service
|
||||
self._owner = ShellOwner()
|
||||
|
||||
def show(self):
|
||||
self.window.show()
|
||||
|
||||
@ -359,7 +363,10 @@ def main():
|
||||
presence_window.show()
|
||||
|
||||
console.set_parent_window(activity_container.window)
|
||||
|
||||
try:
|
||||
gtk.main()
|
||||
except KeyboardInterrupt:
|
||||
pass
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
gtk.main()
|
||||
|
||||
Loading…
Reference in New Issue
Block a user