"""An "actor" on the network, whether remote or local""" # Copyright (C) 2007, Red Hat, Inc. # Copyright (C) 2007, Collabora Ltd. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA import os import logging try: # Python >= 2.5 from hashlib import md5 as new_md5 except ImportError: from md5 import new as new_md5 import gobject import dbus import dbus.proxies import dbus.service from dbus.gobject_service import ExportedGObject from telepathy.constants import CONNECTION_STATUS_CONNECTED from telepathy.interfaces import (CONN_INTERFACE_ALIASING, CONN_INTERFACE_AVATARS) from sugar import env from sugar.profile import get_profile import psutils from buddyiconcache import buddy_icon_cache CONN_INTERFACE_BUDDY_INFO = 'org.laptop.Telepathy.BuddyInfo' BUDDY_PATH = "/org/laptop/Sugar/Presence/Buddies/" _BUDDY_INTERFACE = "org.laptop.Sugar.Presence.Buddy" _PROP_NICK = "nick" _PROP_KEY = "key" _PROP_ICON = "icon" _PROP_CURACT = "current-activity" _PROP_COLOR = "color" _PROP_OWNER = "owner" _PROP_VALID = "valid" _PROP_OBJID = 'objid' # Will go away soon _PROP_IP4_ADDRESS = "ip4-address" _logger = logging.getLogger('s-p-s.buddy') def _noop(*args, **kwargs): pass def _buddy_icon_save_cb(buf, data): data[0] += buf return True def _get_buddy_icon_at_size(icon, maxw, maxh, maxsize): # FIXME Do not import gtk in the presence service, # it uses a lot of memory and slow down startup. # loader = gtk.gdk.PixbufLoader() # loader.write(icon) # loader.close() # unscaled_pixbuf = loader.get_pixbuf() # del loader # # pixbuf = unscaled_pixbuf.scale_simple(maxw, maxh, gtk.gdk.INTERP_BILINEAR) # del unscaled_pixbuf # # data = [""] # quality = 90 # img_size = maxsize + 1 # while img_size > maxsize: # data = [""] # pixbuf.save_to_callback(_buddy_icon_save_cb, "jpeg", # {"quality":"%d" % quality}, data) # quality -= 10 # img_size = len(data[0]) # del pixbuf # # if img_size > maxsize: # data = [""] # raise RuntimeError("could not size image less than %d bytes" % maxsize) # # return str(data[0]) return "" class Buddy(ExportedGObject): """Person on the network (tracks properties and shared activites) The Buddy is a collection of metadata describing a particular actor/person on the network. The Buddy object tracks a set of activities which the actor has shared with the presence service. Buddies have a "valid" property which is used to flag Buddies which are no longer reachable. That is, a Buddy may represent a no-longer reachable target on the network. The Buddy emits GObject events that the PresenceService uses to track changes in its status. Attributes: _activities -- dictionary mapping activity ID to activity.Activity objects _handles -- dictionary mapping Telepathy client plugin to tuples (contact handle, corresponding unique ID); channel-specific handles do not appear here """ __gsignals__ = { 'validity-changed': # The buddy's validity changed. # Validity starts off False, and becomes True when the buddy # either has, or has tried and failed to get, a color, a nick # and a key. # * the new validity: bool (gobject.SIGNAL_RUN_FIRST, None, [bool]), 'property-changed': # One of the buddy's properties has changed. # * those properties that have changed: # dict { str => object } (gobject.SIGNAL_RUN_FIRST, None, [object]), 'icon-changed': # The buddy's icon changed. # * the bytes of the icon: str (gobject.SIGNAL_RUN_FIRST, None, [object]), 'disappeared': # The buddy is offline (has no Telepathy handles and is not the # Owner) (gobject.SIGNAL_RUN_FIRST, None, []), } __gproperties__ = { _PROP_KEY : (str, None, None, None, gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE), _PROP_ICON : (object, None, None, gobject.PARAM_READABLE), # Must be a unicode object or None _PROP_NICK : (object, None, None, gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE), _PROP_COLOR : (str, None, None, None, gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE), _PROP_CURACT : (str, None, None, None, gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE), _PROP_VALID : (bool, None, None, False, gobject.PARAM_READABLE), _PROP_OWNER : (bool, None, None, False, gobject.PARAM_READABLE), _PROP_OBJID : (str, None, None, None, gobject.PARAM_READABLE), _PROP_IP4_ADDRESS : (str, None, None, None, gobject.PARAM_CONSTRUCT_ONLY | gobject.PARAM_READWRITE) } def __init__(self, bus, object_id, **kwargs): """Initialize the Buddy object bus -- connection to the D-Bus session bus object_id -- the buddy's unique identifier, either based on their key-ID or JID kwargs -- used to initialize the object's properties constructs a DBUS "object path" from the BUDDY_PATH and object_id """ self._object_id = object_id self._object_path = dbus.ObjectPath(BUDDY_PATH + object_id) #: activity ID -> activity self._activities = {} self._activity_sigids = {} #: Telepathy plugin -> (handle, identifier e.g. JID) self._handles = {} self._awaiting = set(('alias', 'properties')) self._owner = False self._key = None self._icon = '' self._current_activity = None self._current_activity_plugin = None self._nick = None self._color = None self._ip4_address = None _ALLOWED_INIT_PROPS = [_PROP_NICK, _PROP_KEY, _PROP_ICON, _PROP_CURACT, _PROP_COLOR, _PROP_IP4_ADDRESS] for (key, value) in kwargs.items(): if key not in _ALLOWED_INIT_PROPS: _logger.debug("Invalid init property '%s'; ignoring..." % key) del kwargs[key] # Set icon after superclass init, because it sends DBus and GObject # signals when set icon_data = None if kwargs.has_key(_PROP_ICON): icon_data = kwargs[_PROP_ICON] del kwargs[_PROP_ICON] ExportedGObject.__init__(self, bus, self._object_path, gobject_properties=kwargs) if icon_data is not None: self._icon = str(icon_data) self.IconChanged(self._icon) def __repr__(self): return '' % self._nick def do_get_property(self, pspec): """Retrieve current value for the given property specifier pspec -- property specifier with a "name" attribute """ if pspec.name == _PROP_OBJID: return self._object_id elif pspec.name == _PROP_KEY: return self._key elif pspec.name == _PROP_ICON: return self._icon elif pspec.name == _PROP_NICK: return self._nick elif pspec.name == _PROP_COLOR: return self._color elif pspec.name == _PROP_CURACT: if not self._current_activity: return None if not self._activities.has_key(self._current_activity): return None return self._current_activity elif pspec.name == _PROP_VALID: return not self._awaiting elif pspec.name == _PROP_OWNER: return self._owner elif pspec.name == _PROP_IP4_ADDRESS: return self._ip4_address def do_set_property(self, pspec, value): """Set given property pspec -- property specifier with a "name" attribute value -- value to set emits 'icon-changed' signal on icon setting """ if pspec.name == _PROP_ICON: if str(value) != self._icon: self._icon = str(value) self.IconChanged(self._icon) elif pspec.name == _PROP_NICK: if value is not None: value = unicode(value) self._nick = value elif pspec.name == _PROP_COLOR: self._color = value elif pspec.name == _PROP_CURACT: self._current_activity = value elif pspec.name == _PROP_KEY: if self._key: raise RuntimeError("Key already set.") self._key = value elif pspec.name == _PROP_IP4_ADDRESS: self._ip4_address = value # dbus signals @dbus.service.signal(_BUDDY_INTERFACE, signature="ay") def IconChanged(self, icon_data): """Generates DBUS signal with icon_data""" @dbus.service.signal(_BUDDY_INTERFACE, signature="o") def JoinedActivity(self, activity_path): """Generates DBUS signal when buddy joins activity activity_path -- DBUS path to the activity object """ @dbus.service.signal(_BUDDY_INTERFACE, signature="o") def LeftActivity(self, activity_path): """Generates DBUS signal when buddy leaves activity activity_path -- DBUS path to the activity object """ @dbus.service.signal(_BUDDY_INTERFACE, signature="a{sv}") def PropertyChanged(self, updated): """Generates DBUS signal when buddy's property changes updated -- updated property-set (dictionary) with the Buddy's property (changed) values. Note: not the full set of properties, just the changes. """ def add_telepathy_handle(self, tp_client, handle, uid): """Add a Telepathy handle.""" conn = tp_client.get_connection() self._handles[tp_client] = (handle, uid) self.TelepathyHandleAdded(conn.service_name, conn.object_path, handle) @dbus.service.signal(_BUDDY_INTERFACE, signature='sou') def TelepathyHandleAdded(self, tp_conn_name, tp_conn_path, handle): """Another Telepathy handle has become associated with the buddy. This must only be emitted for non-channel-specific handles. tp_conn_name -- The bus name at which the Telepathy connection may be found tp_conn_path -- The object path at which the Telepathy connection may be found handle -- The handle of type CONTACT, which is not channel-specific, newly associated with the buddy """ def remove_telepathy_handle(self, tp_client): """Remove a Telepathy handle.""" conn = tp_client.get_connection() try: handle, identifier = self._handles.pop(tp_client) except KeyError: return # act as though the buddy signalled ActivitiesChanged([]) for act in self.get_joined_activities(): if act.room_details[0] == tp_client: act.buddy_apparently_left(self) self.TelepathyHandleRemoved(conn.service_name, conn.object_path, handle) # the Owner can't disappear - that would be silly if not self._handles and not self._owner: self.emit('disappeared') # Stop exporting a dbus service self.remove_from_connection() @dbus.service.signal(_BUDDY_INTERFACE, signature='sou') def TelepathyHandleRemoved(self, tp_conn_name, tp_conn_path, handle): """A Telepathy handle has ceased to be associated with the buddy, probably because that contact went offline. The parameters are the same as for TelepathyHandleAdded. """ # dbus methods @dbus.service.method(_BUDDY_INTERFACE, in_signature="", out_signature="ay") def GetIcon(self): """Retrieve Buddy's icon data returns dbus.ByteArray """ if not self.props.icon: return dbus.ByteArray('') return dbus.ByteArray(self.props.icon) @dbus.service.method(_BUDDY_INTERFACE, in_signature="", out_signature="ao") def GetJoinedActivities(self): """Retrieve set of Buddy's joined activities (paths) returns list of dbus service paths for the Buddy's joined activities """ acts = [] for act in self.get_joined_activities(): if act.props.valid: acts.append(act.object_path()) return acts @dbus.service.method(_BUDDY_INTERFACE, in_signature="", out_signature="a{sv}") def GetProperties(self): """Retrieve set of Buddy's properties returns dictionary of nick : str(nickname) owner : bool( whether this Buddy is an owner??? ) XXX what is the owner flag for? key : str(public-key) color: Buddy's icon colour XXX what type? current-activity: Buddy's current activity_id, or "" if no current activity """ props = {} props[_PROP_NICK] = self.props.nick or '' props[_PROP_OWNER] = self.props.owner or '' props[_PROP_KEY] = self.props.key or '' props[_PROP_COLOR] = self.props.color or '' props[_PROP_IP4_ADDRESS] = self.props.ip4_address or '' props[_PROP_CURACT] = self.props.current_activity or '' return props def get_identifier_by_plugin(self, plugin): """ :Parameters: `plugin` : TelepathyPlugin The Telepathy connection :Returns: a tuple (Telepathy handle: integer, unique identifier: str) or None """ return self._handles.get(plugin) @dbus.service.method(_BUDDY_INTERFACE, in_signature='', out_signature='a(sou)') def GetTelepathyHandles(self): """Return a list of non-channel-specific Telepathy contact handles associated with this Buddy. :Returns: An array of triples (connection well-known bus name, connection object path, handle). """ ret = [] for plugin in self._handles: conn = plugin.get_connection() ret.append((str(conn.service_name), conn.object_path, self._handles[plugin][0])) return ret # methods def object_path(self): """Retrieve our dbus.ObjectPath object""" return dbus.ObjectPath(self._object_path) def _activity_validity_changed_cb(self, activity, valid): """Join or leave the activity when its validity changes""" if valid: self.JoinedActivity(activity.object_path()) self.set_properties({_PROP_CURACT: activity.props.id}) else: self.LeftActivity(activity.object_path()) def add_activity(self, activity): """Add an activity to the Buddy's set of activities activity -- activity.Activity instance calls JoinedActivity """ actid = activity.props.id if self._activities.has_key(actid): return self._activities[actid] = activity # join/leave activity when it's validity changes sigid = activity.connect("validity-changed", self._activity_validity_changed_cb) self._activity_sigids[actid] = sigid if activity.props.valid: self.JoinedActivity(activity.object_path()) def remove_activity(self, activity): """Remove the activity from the Buddy's set of activities activity -- activity.Activity instance calls LeftActivity """ actid = activity.props.id if not self._activities.has_key(actid): return activity.disconnect(self._activity_sigids[actid]) del self._activity_sigids[actid] del self._activities[actid] if activity.props.valid: self.LeftActivity(activity.object_path()) def get_joined_activities(self): """Retrieves list of still-valid activity objects""" acts = [] for act in self._activities.values(): acts.append(act) return acts def set_properties(self, properties): """Set the given set of properties on the object properties -- set of property values to set if no change, no events generated if change, generates property-changed """ changed = False changed_props = {} if _PROP_NICK in properties: nick = properties[_PROP_NICK] if nick is not None: nick = unicode(nick) if nick != self._nick: self._nick = nick changed_props[_PROP_NICK] = nick or u'' changed = True if _PROP_COLOR in properties: color = properties[_PROP_COLOR] if color != self._color: self._color = color changed_props[_PROP_COLOR] = color or '' changed = True if _PROP_CURACT in properties: curact = properties[_PROP_CURACT] if curact != self._current_activity: self._current_activity = curact changed_props[_PROP_CURACT] = curact or '' changed = True if _PROP_IP4_ADDRESS in properties: ip4addr = properties[_PROP_IP4_ADDRESS] if ip4addr != self._ip4_address: self._ip4_address = ip4addr changed_props[_PROP_IP4_ADDRESS] = ip4addr or '' changed = True if _PROP_KEY in properties: # don't allow key to be set more than once if self._key is None: key = properties[_PROP_KEY] if key is not None: self._key = key changed_props[_PROP_KEY] = key or '' changed = True if not changed or not changed_props: return # Try emitting PropertyChanged before updating validity # to avoid leaking a PropertyChanged signal before the buddy is # actually valid the first time after creation if not self._awaiting: dbus_changed = {} for key, value in changed_props.items(): if value: dbus_changed[key] = value else: dbus_changed[key] = "" self.PropertyChanged(dbus_changed) self._property_changed(changed_props) def _property_changed(self, changed_props): pass def update_buddy_properties(self, tp, props): """Update the buddy properties (those that come from the GetProperties method of the org.laptop.Telepathy.BuddyInfo interface) from the given Telepathy connection. Other properties, such as 'nick', may not be set via this method. """ self.set_properties(props) # If the properties didn't contain the key or color, then we're never # going to get one. try: self._awaiting.remove('properties') except KeyError: pass else: if not self._awaiting: self.emit('validity-changed', True) def update_alias(self, tp, alias): """Update the alias from the given Telepathy connection. """ self.set_properties({'nick': alias}) try: self._awaiting.remove('alias') except KeyError: pass else: if not self._awaiting: self.emit('validity-changed', True) def update_current_activity(self, tp, current_activity): """Update the current activity from the given Telepathy connection. """ # don't allow an absent current-activity to overwrite a present one # unless our current current-activity was advertised by the same # Telepathy connection if current_activity or self._current_activity_plugin is tp: self._current_activity_plugin = tp self.set_properties({_PROP_CURACT: current_activity}) def update_avatar(self, tp, new_avatar_token, icon=None, mime_type=None): """Handle update of the avatar""" # FIXME: Avatars have been disabled for Trial-2 due to performance # issues in the avatar cache. Revisit this afterwards return conn = tp.get_connection() handle, identifier = self._handles[tp] if CONN_INTERFACE_AVATARS not in conn: return if icon is None: icon = buddy_icon_cache.get_icon(conn.object_path, identifier, new_avatar_token) else: buddy_icon_cache.store_icon(conn.object_path, identifier, new_avatar_token, icon) if icon is None: # this was AvatarUpdated not AvatarRetrieved, and then we got a # cache miss - request an AvatarRetrieved signal so we can get the # actual icon conn[CONN_INTERFACE_AVATARS].RequestAvatars([handle], ignore_reply=True) else: if self._icon != icon: self._icon = icon self.IconChanged(self._icon) class GenericOwner(Buddy): """Common functionality for Local User-like objects The TestOwner wants to produce something *like* a ShellOwner, but with randomised changes and the like. This class provides the common features for a real local owner and a testing one. """ __gtype_name__ = "GenericOwner" def __init__(self, ps, bus, object_id, **kwargs): """Initialize the GenericOwner instance ps -- presenceservice.PresenceService object bus -- a connection to the D-Bus session bus object_id -- the activity's unique identifier kwargs -- used to initialize the object's properties calls Buddy.__init__ """ self._ps = ps self._server = kwargs.pop("server", None) self._key_hash = kwargs.pop("key_hash", None) self._registered = kwargs.pop("registered", False) #: Telepathy plugin -> dict { activity ID -> room handle } self._activities_by_connection = {} self._ip4_addr_monitor = psutils.IP4AddressMonitor.get_instance() self._ip4_addr_monitor.connect("address-changed", self._ip4_address_changed_cb) if self._ip4_addr_monitor.props.address: kwargs["ip4-address"] = self._ip4_addr_monitor.props.address Buddy.__init__(self, bus, object_id, **kwargs) self._owner = True self._bus = bus def add_owner_activity(self, tp, activity_id, activity_room): # FIXME: this probably duplicates something else (_activities?) # but for now I'll keep the same duplication as before. # Equivalent code used to be in ServerPlugin. id_to_act = self._activities_by_connection.setdefault(tp, {}) id_to_act[activity_id] = activity_room self._set_self_activities(tp) def remove_owner_activity(self, tp, activity_id): # FIXME: this probably duplicates something else (_activities?) # but for now I'll keep the same duplication as before. # Equivalent code used to be in ServerPlugin. id_to_act = self._activities_by_connection.setdefault(tp, {}) del id_to_act[activity_id] self._set_self_activities(tp) if self._current_activity == activity_id: self.set_properties({_PROP_CURACT: None}) def _set_self_activities(self, tp): """Forward set of joined activities to network uses SetActivities on BuddyInfo channel """ conn = tp.get_connection() if CONN_INTERFACE_BUDDY_INFO not in conn: _logger.warning('%s does not support BuddyInfo - unable to ' 'set activities' % conn.object_path) return conn[CONN_INTERFACE_BUDDY_INFO].SetActivities( self._activities_by_connection[tp].iteritems(), reply_handler=_noop, error_handler=lambda e: _logger.warning("setting activities failed: %s", e)) def _set_self_current_activity(self, tp): """Forward our current activity (or "") to network """ cur_activity = self._current_activity if not cur_activity: cur_activity = "" cur_activity_handle = 0 else: id_to_act = self._activities_by_connection.setdefault(tp, {}) cur_activity_handle = id_to_act.get(cur_activity) if cur_activity_handle is None: # don't advertise a current activity that's not shared on # this connection cur_activity = "" cur_activity_handle = 0 _logger.debug("Setting current activity to '%s' (handle %s)", cur_activity, cur_activity_handle) conn = tp.get_connection() if CONN_INTERFACE_BUDDY_INFO not in conn: _logger.warning('%s does not support BuddyInfo - unable to ' 'set current activity' % conn.object_path) return self.PropertyChanged({_PROP_CURACT: self._current_activity or ''}) conn[CONN_INTERFACE_BUDDY_INFO].SetCurrentActivity(cur_activity, cur_activity_handle, reply_handler=_noop, error_handler=lambda e: _logger.warning("setting current activity failed: %s", e)) def _set_self_alias(self, tp): self_handle = self._handles[tp][0] conn = tp.get_connection() if CONN_INTERFACE_ALIASING not in conn: _logger.warning('%s does not support aliasing - unable to ' 'set my own alias' % conn.object_path) return False conn[CONN_INTERFACE_ALIASING].SetAliases({self_handle: self._nick}, reply_handler=_noop, error_handler=lambda e: _logger.warning('Error setting alias: %s', e)) # Hack so we can use this as a timeout handler return False def set_properties_before_connect(self, tp): self._set_self_olpc_properties(tp, connected=False) def _set_self_olpc_properties(self, tp, connected=True): conn = tp.get_connection() # FIXME: omit color/key/ip4-address if None? props = dbus.Dictionary({ 'color': self._color or '', 'key': dbus.ByteArray(self._key or ''), 'ip4-address': self._ip4_address or '', }, signature='sv') # FIXME: clarify whether we're meant to support random extra properties # (Salut doesn't) if tp._PROTOCOL == 'salut': del props['ip4-address'] if connected: if CONN_INTERFACE_BUDDY_INFO not in conn: _logger.warning('%s does not support BuddyInfo - unable to ' 'set my own buddy properties' % conn.object_path) return False conn[CONN_INTERFACE_BUDDY_INFO].SetProperties(props, reply_handler=_noop, error_handler=lambda e: _logger.warning('Error setting OLPC properties: %s', e)) else: # we don't yet know whether the connection supports setting buddy # properties # FIXME: remove this hack, and the import of dbus.proxies, when # we have a newer tp-python that makes dbus_object public try: obj = conn.dbus_object if not isinstance(obj, dbus.proxies.ProxyObject): raise AttributeError except AttributeError: obj = conn._dbus_object obj.SetProperties(props, dbus_interface=CONN_INTERFACE_BUDDY_INFO, reply_handler=lambda: _logger.debug('Successfully preloaded buddy props'), error_handler=lambda e: _logger.debug('Failed to preload buddy properties, ' 'will try again after Connect(): %s', e)) # Hack so we can use this as a timeout handler return False def add_telepathy_handle(self, tp_client, handle, uid): Buddy.add_telepathy_handle(self, tp_client, handle, uid) self._activities_by_connection.setdefault(tp_client, {}) self._set_self_olpc_properties(tp_client) self._set_self_alias(tp_client) # Hack; send twice to make sure the server gets it #gobject.timeout_add(1000, lambda: self._set_self_alias(tp_client)) self._set_self_activities(tp_client) self._set_self_current_activity(tp_client) self._set_self_avatar(tp_client) def IconChanged(self, icon_data): # As well as emitting the D-Bus signal, prod the Telepathy # connection manager Buddy.IconChanged(self, icon_data) for tp in self._handles.iterkeys(): self._set_self_avatar(tp) def _set_self_avatar(self, tp): # FIXME: Avatars have been disabled for Trial-2 due to performance # issues in the avatar cache. Revisit this afterwards return conn = tp.get_connection() icon_data = self._icon if CONN_INTERFACE_AVATARS not in conn: _logger.warning('%s does not support Avatars - unable to ' 'set my own avatar on this connection' % conn.object_path) return m = new_md5() m.update(icon_data) digest = m.hexdigest() self_handle = self._handles[tp][0] token = conn[CONN_INTERFACE_AVATARS].GetAvatarTokens( [self_handle])[0] if buddy_icon_cache.check_avatar(conn.object_path, digest, token): # avatar is up to date return def set_self_avatar_cb(token): buddy_icon_cache.set_avatar(conn.object_path, digest, token) types, minw, minh, maxw, maxh, maxsize = \ conn[CONN_INTERFACE_AVATARS].GetAvatarRequirements() if not "image/jpeg" in types: _logger.debug("server does not accept JPEG format avatars.") return width = 96 height = 96 size = 8192 if maxw > 0 and width > maxw: width = maxw if maxw > 0 and height > maxh: height = maxh if maxsize > 0 and size > maxsize: size = maxsize if 1: # FIXME: Avatars have been disabled for Trial-2 due to performance # issues in the avatar cache. Revisit this afterwards pass else: img_data = _get_buddy_icon_at_size(icon_data, width, height, size) conn[CONN_INTERFACE_AVATARS].SetAvatar(img_data, "image/jpeg", reply_handler=set_self_avatar_cb, error_handler=lambda e: _logger.warning('Error setting avatar: %s', e)) def _property_changed(self, changed_props): for tp in self._handles.iterkeys(): if changed_props.has_key("current-activity"): self._set_self_current_activity(tp) if changed_props.has_key("nick"): self._set_self_alias(tp) # Hack; send twice to make sure the server gets it gobject.timeout_add(1000, lambda: self._set_self_alias(tp)) if (changed_props.has_key("color") or changed_props.has_key("ip4-address")): if tp.status == CONNECTION_STATUS_CONNECTED: self._set_self_olpc_properties(tp) def _ip4_address_changed_cb(self, monitor, address): """Handle IPv4 address change, set property to generate event""" props = {_PROP_IP4_ADDRESS: address} self.set_properties(props) def get_registered(self): """Retrieve whether owner has registered with presence server""" return self._registered def get_server(self): """Retrieve XMPP server hostname (used by the server plugin)""" return self._server def get_key_hash(self): """Retrieve the user's private-key hash (used by the server plugin as a password) """ return self._key_hash def set_registered(self, registered): """Customisation point: handle the registration of the owner""" raise RuntimeError("Subclasses must implement") def update_avatar(self, tp, new_avatar_token, icon=None, mime_type=None): # This should never get called because Owner avatar changes are # driven by the Sugar shell, but just in case: _logger.warning('GenericOwner.update_avatar() should not be called') class ShellOwner(GenericOwner): """Representation of the local-machine owner using Sugar's Shell The ShellOwner uses the Sugar Shell's dbus services to register for updates about the user's profile description. """ __gtype_name__ = "ShellOwner" _SHELL_SERVICE = "org.laptop.Shell" _SHELL_OWNER_INTERFACE = "org.laptop.Shell.Owner" _SHELL_PATH = "/org/laptop/Shell" def __init__(self, ps, bus): """Initialize the ShellOwner instance ps -- presenceservice.PresenceService object bus -- a connection to the D-Bus session bus Retrieves initial property values from the profile module. Loads the buddy icon from file as well. XXX note: no error handling on that calls GenericOwner.__init__ """ profile = get_profile() server = profile.jabber_server registered = profile.jabber_registered key_hash = profile.privkey_hash key = profile.pubkey nick = profile.nick_name color = profile.color.to_string() icon_file = os.path.join(env.get_profile_path(), "buddy-icon.jpg") f = open(icon_file, "r") icon = f.read() f.close() GenericOwner.__init__(self, ps, bus, 'keyid/' + psutils.pubkey_to_keyid(key), key=key, nick=nick, color=color, icon=icon, server=server, key_hash=key_hash, registered=registered) # Ask to get notifications on Owner object property changes in the # shell. If it's not currently running, no problem - we'll get the # signals when it does run for (signal, cb) in (('IconChanged', self._icon_changed_cb), ('ColorChanged', self._color_changed_cb), ('NickChanged', self._nick_changed_cb), ('CurrentActivityChanged', self._cur_activity_changed_cb)): self._bus.add_signal_receiver(cb, signal_name=signal, dbus_interface=self._SHELL_OWNER_INTERFACE, bus_name=self._SHELL_SERVICE, path=self._SHELL_PATH) # we already know our own nick, color, key self._awaiting = None def set_registered(self, value): """Handle notification that we have been registered""" if value: profile = get_profile() profile.jabber_registered profile.save() def _icon_changed_cb(self, icon): """Handle icon change, set property to generate event""" icon = str(icon) if icon != self._icon: self._icon = icon self.IconChanged(icon) def _color_changed_cb(self, color): """Handle color change, set property to generate event""" props = {_PROP_COLOR: color} self.set_properties(props) def _nick_changed_cb(self, nick): """Handle nickname change, set property to generate event""" props = {_PROP_NICK: nick} self.set_properties(props) def _cur_activity_changed_cb(self, activity_id): """Handle current-activity change, set property to generate event Filters out local activities (those not in self.activites) because the network users can't join those activities, so the activity_id shared will be None in those cases... """ if not self._activities.has_key(activity_id): print 'Local only activity' # This activity is local-only activity_id = None props = {_PROP_CURACT: activity_id} self.set_properties(props)