850 lines
29 KiB
Python
850 lines
29 KiB
Python
"""An "actor" on the network, whether remote or local"""
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# Copyright (C) 2007, Red Hat, Inc.
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# Copyright (C) 2007, Collabora Ltd.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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import os
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import gobject
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import dbus, dbus.service
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from ConfigParser import ConfigParser, NoOptionError
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from sugar import env, profile, util
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import logging
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import random
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_BUDDY_PATH = "/org/laptop/Sugar/Presence/Buddies/"
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_BUDDY_INTERFACE = "org.laptop.Sugar.Presence.Buddy"
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_OWNER_INTERFACE = "org.laptop.Sugar.Presence.Buddy.Owner"
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class NotFoundError(dbus.DBusException):
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"""Raised when a given actor is not found on the network"""
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def __init__(self):
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dbus.DBusException.__init__(self)
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self._dbus_error_name = _PRESENCE_INTERFACE + '.NotFound'
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class DBusGObjectMetaclass(dbus.service.InterfaceType, gobject.GObjectMeta): pass
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class DBusGObject(dbus.service.Object, gobject.GObject): __metaclass__ = DBusGObjectMetaclass
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_PROP_NICK = "nick"
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_PROP_KEY = "key"
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_PROP_ICON = "icon"
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_PROP_CURACT = "current-activity"
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_PROP_COLOR = "color"
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_PROP_OWNER = "owner"
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_PROP_VALID = "valid"
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class Buddy(DBusGObject):
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"""Person on the network (tracks properties and shared activites)
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The Buddy is a collection of metadata describing a particular
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actor/person on the network. The Buddy object tracks a set of
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activities which the actor has shared with the presence service.
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Buddies have a "valid" property which is used to flag Buddies
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which are no longer reachable. That is, a Buddy may represent
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a no-longer reachable target on the network.
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The Buddy emits GObject events that the PresenceService uses
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to track changes in its status.
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Attributes:
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_activities -- dictionary mapping activity ID to
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activity.Activity objects
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handles -- dictionary mapping telepresence client to
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"handle" (XXX what's that)
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"""
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__gsignals__ = {
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'validity-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_BOOLEAN])),
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'property-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT])),
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'icon-changed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT]))
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}
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__gproperties__ = {
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_PROP_KEY : (str, None, None, None,
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gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT_ONLY),
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_PROP_ICON : (object, None, None, gobject.PARAM_READWRITE),
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_PROP_NICK : (str, None, None, None, gobject.PARAM_READWRITE),
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_PROP_COLOR : (str, None, None, None, gobject.PARAM_READWRITE),
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_PROP_CURACT : (str, None, None, None, gobject.PARAM_READWRITE),
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_PROP_VALID : (bool, None, None, False, gobject.PARAM_READABLE),
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_PROP_OWNER : (bool, None, None, False, gobject.PARAM_READABLE)
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}
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def __init__(self, bus_name, object_id, **kwargs):
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"""Initialize the Buddy object
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bus_name -- DBUS object bus name (identifier)
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object_id -- the activity's unique identifier
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kwargs -- used to initialize the object's properties
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constructs a DBUS "object path" from the _BUDDY_PATH
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and object_id
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"""
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if not bus_name:
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raise ValueError("DBus bus name must be valid")
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if not object_id or not isinstance(object_id, int):
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raise ValueError("object id must be a valid number")
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self._bus_name = bus_name
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self._object_id = object_id
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self._object_path = _BUDDY_PATH + str(self._object_id)
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dbus.service.Object.__init__(self, self._bus_name, self._object_path)
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self._activities = {} # Activity ID -> Activity
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self._activity_sigids = {}
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self.handles = {} # tp client -> handle
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self._valid = False
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self._owner = False
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self._key = None
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self._icon = ''
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self._current_activity = None
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self._nick = None
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self._color = None
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if not kwargs.get(_PROP_KEY):
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raise ValueError("key required")
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_ALLOWED_INIT_PROPS = [_PROP_NICK, _PROP_KEY, _PROP_ICON, _PROP_CURACT, _PROP_COLOR]
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for (key, value) in kwargs.items():
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if key not in _ALLOWED_INIT_PROPS:
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logging.debug("Invalid init property '%s'; ignoring..." % key)
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del kwargs[key]
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gobject.GObject.__init__(self, **kwargs)
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def do_get_property(self, pspec):
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"""Retrieve current value for the given property specifier
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pspec -- property specifier with a "name" attribute
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"""
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if pspec.name == _PROP_KEY:
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return self._key
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elif pspec.name == _PROP_ICON:
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return self._icon
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elif pspec.name == _PROP_NICK:
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return self._nick
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elif pspec.name == _PROP_COLOR:
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return self._color
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elif pspec.name == _PROP_CURACT:
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if not self._current_activity:
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return None
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if not self._activities.has_key(self._current_activity):
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return None
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return self._current_activity
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elif pspec.name == _PROP_VALID:
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return self._valid
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elif pspec.name == _PROP_OWNER:
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return self._owner
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def do_set_property(self, pspec, value):
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"""Set given property
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pspec -- property specifier with a "name" attribute
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value -- value to set
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emits 'icon-changed' signal on icon setting
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calls _update_validity on all calls
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"""
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if pspec.name == _PROP_ICON:
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if str(value) != self._icon:
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self._icon = str(value)
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self.IconChanged(self._icon)
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self.emit('icon-changed', self._icon)
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elif pspec.name == _PROP_NICK:
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self._nick = value
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elif pspec.name == _PROP_COLOR:
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self._color = value
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elif pspec.name == _PROP_CURACT:
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self._current_activity = value
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elif pspec.name == _PROP_KEY:
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self._key = value
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self._update_validity()
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# dbus signals
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="ay")
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def IconChanged(self, icon_data):
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"""Generates DBUS signal with icon_data"""
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="o")
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def JoinedActivity(self, activity_path):
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"""Generates DBUS signal when buddy joins activity
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activity_path -- DBUS path to the activity object
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"""
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="o")
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def LeftActivity(self, activity_path):
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"""Generates DBUS signal when buddy leaves activity
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activity_path -- DBUS path to the activity object
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"""
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@dbus.service.signal(_BUDDY_INTERFACE,
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signature="a{sv}")
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def PropertyChanged(self, updated):
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"""Generates DBUS signal when buddy's property changes
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updated -- updated property-set (dictionary) with the
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Buddy's property (changed) values. Note: not the
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full set of properties, just the changes.
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"""
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# dbus methods
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="ay")
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def GetIcon(self):
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"""Retrieve Buddy's icon data
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returns empty string or dbus.ByteArray
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"""
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if not self.props.icon:
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return ""
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return dbus.ByteArray(self.props.icon)
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="ao")
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def GetJoinedActivities(self):
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"""Retrieve set of Buddy's joined activities (paths)
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returns list of dbus service paths for the Buddy's joined
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activities
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"""
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acts = []
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for act in self.get_joined_activities():
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if act.props.valid:
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acts.append(act.object_path())
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return acts
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@dbus.service.method(_BUDDY_INTERFACE,
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in_signature="", out_signature="a{sv}")
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def GetProperties(self):
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"""Retrieve set of Buddy's properties
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returns dictionary of
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nick : str(nickname)
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owner : bool( whether this Buddy is an owner??? )
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XXX what is the owner flag for?
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key : str(public-key)
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color: Buddy's icon colour
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XXX what type?
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current-activity: Buddy's current activity_id, or
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"" if no current activity
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"""
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props = {}
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props[_PROP_NICK] = self.props.nick
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props[_PROP_OWNER] = self.props.owner
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props[_PROP_KEY] = self.props.key
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props[_PROP_COLOR] = self.props.color
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if self.props.current_activity:
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props[_PROP_CURACT] = self.props.current_activity
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else:
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props[_PROP_CURACT] = ""
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return props
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# methods
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def object_path(self):
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"""Retrieve our dbus.ObjectPath object"""
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return dbus.ObjectPath(self._object_path)
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def _activity_validity_changed_cb(self, activity, valid):
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"""Join or leave the activity when its validity changes"""
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if valid:
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self.JoinedActivity(activity.object_path())
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else:
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self.LeftActivity(activity.object_path())
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def add_activity(self, activity):
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"""Add an activity to the Buddy's set of activities
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activity -- activity.Activity instance
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calls JoinedActivity
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"""
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actid = activity.props.id
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if self._activities.has_key(actid):
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return
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self._activities[actid] = activity
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# join/leave activity when it's validity changes
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sigid = activity.connect("validity-changed", self._activity_validity_changed_cb)
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self._activity_sigids[actid] = sigid
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if activity.props.valid:
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self.JoinedActivity(activity.object_path())
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def remove_activity(self, activity):
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"""Remove the activity from the Buddy's set of activities
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activity -- activity.Activity instance
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calls LeftActivity
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"""
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actid = activity.props.id
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if not self._activities.has_key(actid):
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return
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activity.disconnect(self._activity_sigids[actid])
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del self._activity_sigids[actid]
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del self._activities[actid]
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if activity.props.valid:
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self.LeftActivity(activity.object_path())
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def get_joined_activities(self):
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"""Retrieves list of still-valid activity objects"""
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acts = []
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for act in self._activities.values():
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acts.append(act)
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return acts
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def set_properties(self, properties):
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"""Set the given set of properties on the object
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properties -- set of property values to set
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if no change, no events generated
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if change, generates property-changed and
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calls _update_validity
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"""
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changed = False
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changed_props = {}
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if _PROP_NICK in properties.keys():
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nick = properties[_PROP_NICK]
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if nick != self._nick:
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self._nick = nick
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changed_props[_PROP_NICK] = nick
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changed = True
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if _PROP_COLOR in properties.keys():
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color = properties[_PROP_COLOR]
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if color != self._color:
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self._color = color
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changed_props[_PROP_COLOR] = color
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changed = True
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if _PROP_CURACT in properties.keys():
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curact = properties[_PROP_CURACT]
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if curact != self._current_activity:
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self._current_activity = curact
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changed_props[_PROP_CURACT] = curact
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changed = True
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if not changed or not len(changed_props.keys()):
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return
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# Try emitting PropertyChanged before updating validity
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# to avoid leaking a PropertyChanged signal before the buddy is
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# actually valid the first time after creation
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if self._valid:
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self.PropertyChanged(changed_props)
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self.emit('property-changed', changed_props)
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self._update_validity()
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def _update_validity(self):
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"""Check whether we are now valid
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validity is True if color, nick and key are non-null
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emits validity-changed if we have changed validity
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"""
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try:
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old_valid = self._valid
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if self._color and self._nick and self._key:
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self._valid = True
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else:
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self._valid = False
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if old_valid != self._valid:
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self.emit("validity-changed", self._valid)
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except AttributeError:
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self._valid = False
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class GenericOwner(Buddy):
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"""Common functionality for Local User-like objects
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The TestOwner wants to produce something *like* a
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ShellOwner, but with randomised changes and the like.
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This class provides the common features for a real
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local owner and a testing one.
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"""
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__gtype_name__ = "GenericOwner"
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__gproperties__ = {
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'registered' : (bool, None, None, False, gobject.PARAM_READWRITE | gobject.PARAM_CONSTRUCT),
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'server' : (str, None, None, None, gobject.PARAM_READABLE | gobject.PARAM_CONSTRUCT),
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'key-hash' : (str, None, None, None, gobject.PARAM_READABLE | gobject.PARAM_CONSTRUCT)
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}
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def __init__(self, ps, bus_name, object_id, **kwargs):
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"""Initialize the GenericOwner instance
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ps -- presenceservice.PresenceService object
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bus_name -- DBUS object bus name (identifier)
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object_id -- the activity's unique identifier
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kwargs -- used to initialize the object's properties
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calls Buddy.__init__
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"""
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self._ps = ps
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self._server = 'olpc.collabora.co.uk'
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self._key_hash = None
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self._registered = False
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if kwargs.has_key("server"):
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self._server = kwargs["server"]
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del kwargs["server"]
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if kwargs.has_key("key_hash"):
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self._key_hash = kwargs["key_hash"]
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del kwargs["key_hash"]
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if kwargs.has_key("registered"):
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self._registered = kwargs["registered"]
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del kwargs["registered"]
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Buddy.__init__(self, bus_name, object_id, **kwargs)
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self._owner = True
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def get_registered(self):
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"""Retrieve whether owner has registered with presence server"""
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return self._registered
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def get_server(self):
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"""Retrieve presence server (XXX url??)"""
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return self._server
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def get_key_hash(self):
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"""Retrieve the user's private-key hash"""
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return self._key_hash
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def set_registered(self, registered):
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"""Customisation point: handle the registration of the owner"""
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raise RuntimeError("Subclasses must implement")
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class ShellOwner(GenericOwner):
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"""Representation of the local-machine owner using Sugar's Shell
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The ShellOwner uses the Sugar Shell's dbus services to
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register for updates about the user's profile description.
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"""
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__gtype_name__ = "ShellOwner"
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_SHELL_SERVICE = "org.laptop.Shell"
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_SHELL_OWNER_INTERFACE = "org.laptop.Shell.Owner"
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_SHELL_PATH = "/org/laptop/Shell"
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def __init__(self, ps, bus_name, object_id, test=False):
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"""Initialize the ShellOwner instance
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ps -- presenceservice.PresenceService object
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bus_name -- DBUS object bus name (identifier)
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object_id -- the activity's unique identifier
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test -- ignored
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Retrieves initial property values from the profile
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module. Loads the buddy icon from file as well.
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XXX note: no error handling on that
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calls GenericOwner.__init__
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"""
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server = profile.get_server()
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key_hash = profile.get_private_key_hash()
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registered = profile.get_server_registered()
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key = profile.get_pubkey()
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nick = profile.get_nick_name()
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color = profile.get_color().to_string()
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icon_file = os.path.join(env.get_profile_path(), "buddy-icon.jpg")
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f = open(icon_file, "r")
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icon = f.read()
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f.close()
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GenericOwner.__init__(self, ps, bus_name, object_id, key=key, nick=nick,
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color=color, icon=icon, server=server, key_hash=key_hash,
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registered=registered)
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self._bus = dbus.SessionBus()
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self._bus.add_signal_receiver(self._name_owner_changed_handler,
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signal_name="NameOwnerChanged",
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dbus_interface="org.freedesktop.DBus")
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# Connect to the shell to get notifications on Owner object
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# property changes
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try:
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self._connect_to_shell()
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except dbus.DBusException:
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pass
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def set_registered(self, value):
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"""Handle notification that we have been registered"""
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if value:
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profile.set_server_registered()
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def _name_owner_changed_handler(self, name, old, new):
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"""Handle DBUS notification of a new / renamed service
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Watches for the _SHELL_SERVICE, i.e. the Sugar Shell,
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and registers with it if we have not yet registered
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with it (using _connect_to_shell).
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"""
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if name != self._SHELL_SERVICE:
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return
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if (old and len(old)) and (not new and not len(new)):
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# shell went away
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self._shell_owner = None
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elif (not old and not len(old)) and (new and len(new)):
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# shell started
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self._connect_to_shell()
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def _connect_to_shell(self):
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"""Connect to the Sugar Shell service to watch for events
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Connects the various XChanged events on the Sugar Shell
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service to our _x_changed_cb methods.
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"""
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obj = self._bus.get_object(self._SHELL_SERVICE, self._SHELL_PATH)
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self._shell_owner = dbus.Interface(obj, self._SHELL_OWNER_INTERFACE)
|
|
self._shell_owner.connect_to_signal('IconChanged', self._icon_changed_cb)
|
|
self._shell_owner.connect_to_signal('ColorChanged', self._color_changed_cb)
|
|
self._shell_owner.connect_to_signal('NickChanged', self._nick_changed_cb)
|
|
self._shell_owner.connect_to_signal('CurrentActivityChanged',
|
|
self._cur_activity_changed_cb)
|
|
|
|
def _icon_changed_cb(self, icon):
|
|
"""Handle icon change, set property to generate event"""
|
|
self.props.icon = 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):
|
|
# This activity is local-only
|
|
activity_id = None
|
|
props = {_PROP_CURACT: activity_id}
|
|
self.set_properties(props)
|
|
|
|
|
|
class TestOwner(GenericOwner):
|
|
"""Class representing the owner of the machine. This test owner
|
|
changes random attributes periodically."""
|
|
|
|
__gtype_name__ = "TestOwner"
|
|
|
|
def __init__(self, ps, bus_name, object_id, test_num):
|
|
self._cp = ConfigParser()
|
|
self._section = "Info"
|
|
self._test_activities = []
|
|
self._test_cur_act = ""
|
|
self._change_timeout = 0
|
|
|
|
self._cfg_file = os.path.join(env.get_profile_path(), 'test-buddy-%d' % test_num)
|
|
|
|
(pubkey, privkey, registered) = self._load_config()
|
|
if not pubkey or not len(pubkey) or not privkey or not len(privkey):
|
|
(pubkey, privkey) = _get_new_keypair(test_num)
|
|
|
|
if not pubkey or not privkey:
|
|
raise RuntimeError("Couldn't get or create test buddy keypair")
|
|
|
|
self._save_config(pubkey, privkey, registered)
|
|
privkey_hash = util.printable_hash(util._sha_data(privkey))
|
|
|
|
nick = _get_random_name()
|
|
from sugar.graphics import xocolor
|
|
color = xocolor.XoColor().to_string()
|
|
icon = _get_random_image()
|
|
|
|
logging.debug("pubkey is %s" % pubkey)
|
|
GenericOwner.__init__(self, ps, bus_name, object_id, key=pubkey, nick=nick,
|
|
color=color, icon=icon, registered=registered, key_hash=privkey_hash)
|
|
|
|
self._ps.connect('connection-status', self._ps_connection_status_cb)
|
|
|
|
def _share_reply_cb(self, actid, object_path):
|
|
activity = self._ps.internal_get_activity(actid)
|
|
if not activity or not object_path:
|
|
logging.debug("Couldn't find activity %s even though it was shared." % actid)
|
|
return
|
|
logging.debug("Shared activity %s (%s)." % (actid, activity.props.name))
|
|
self._test_activities.append(activity)
|
|
|
|
def _share_error_cb(self, actid, err):
|
|
logging.debug("Error sharing activity %s: %s" % (actid, str(err)))
|
|
|
|
def _ps_connection_status_cb(self, ps, connected):
|
|
if not connected:
|
|
return
|
|
|
|
if not len(self._test_activities):
|
|
# Share some activities
|
|
actid = util.unique_id("Activity 1")
|
|
callbacks = (lambda *args: self._share_reply_cb(actid, *args),
|
|
lambda *args: self._share_error_cb(actid, *args))
|
|
atype = "org.laptop.WebActivity"
|
|
properties = {"foo": "bar"}
|
|
self._ps._share_activity(actid, atype, "Wembley Stadium", properties, callbacks)
|
|
|
|
actid2 = util.unique_id("Activity 2")
|
|
callbacks = (lambda *args: self._share_reply_cb(actid2, *args),
|
|
lambda *args: self._share_error_cb(actid2, *args))
|
|
atype = "org.laptop.WebActivity"
|
|
properties = {"baz": "bar"}
|
|
self._ps._share_activity(actid2, atype, "Maine Road", properties, callbacks)
|
|
|
|
# Change a random property ever 10 seconds
|
|
if self._change_timeout == 0:
|
|
self._change_timeout = gobject.timeout_add(10000, self._update_something)
|
|
|
|
def set_registered(self, value):
|
|
if value:
|
|
self._registered = True
|
|
|
|
def _load_config(self):
|
|
if not os.path.exists(self._cfg_file):
|
|
return (None, None, False)
|
|
if not self._cp.read([self._cfg_file]):
|
|
return (None, None, False)
|
|
if not self._cp.has_section(self._section):
|
|
return (None, None, False)
|
|
|
|
try:
|
|
pubkey = self._cp.get(self._section, "pubkey")
|
|
privkey = self._cp.get(self._section, "privkey")
|
|
registered = self._cp.get(self._section, "registered")
|
|
return (pubkey, privkey, registered)
|
|
except NoOptionError:
|
|
pass
|
|
|
|
return (None, None, False)
|
|
|
|
def _save_config(self, pubkey, privkey, registered):
|
|
# Save config again
|
|
if not self._cp.has_section(self._section):
|
|
self._cp.add_section(self._section)
|
|
self._cp.set(self._section, "pubkey", pubkey)
|
|
self._cp.set(self._section, "privkey", privkey)
|
|
self._cp.set(self._section, "registered", registered)
|
|
f = open(self._cfg_file, 'w')
|
|
self._cp.write(f)
|
|
f.close()
|
|
|
|
def _update_something(self):
|
|
it = random.randint(0, 10000) % 4
|
|
if it == 0:
|
|
self.props.icon = _get_random_image()
|
|
elif it == 1:
|
|
from sugar.graphics import xocolor
|
|
props = {_PROP_COLOR: xocolor.XoColor().to_string()}
|
|
self.set_properties(props)
|
|
elif it == 2:
|
|
props = {_PROP_NICK: _get_random_name()}
|
|
self.set_properties(props)
|
|
elif it == 3:
|
|
actid = ""
|
|
idx = random.randint(0, len(self._test_activities))
|
|
# if idx == len(self._test_activites), it means no current
|
|
# activity
|
|
if idx < len(self._test_activities):
|
|
activity = self._test_activities[idx]
|
|
actid = activity.props.id
|
|
props = {_PROP_CURACT: actid}
|
|
self.set_properties(props)
|
|
return True
|
|
|
|
|
|
def _hash_private_key(self):
|
|
"""Unused method to has a private key, see profile"""
|
|
self.privkey_hash = None
|
|
|
|
key_path = os.path.join(env.get_profile_path(), 'owner.key')
|
|
try:
|
|
f = open(key_path, "r")
|
|
lines = f.readlines()
|
|
f.close()
|
|
except IOError, e:
|
|
logging.error("Error reading private key: %s" % e)
|
|
return
|
|
|
|
key = ""
|
|
for l in lines:
|
|
l = l.strip()
|
|
if l.startswith("-----BEGIN DSA PRIVATE KEY-----"):
|
|
continue
|
|
if l.startswith("-----END DSA PRIVATE KEY-----"):
|
|
continue
|
|
key += l
|
|
if not len(key):
|
|
logging.error("Error parsing public key.")
|
|
|
|
# hash it
|
|
key_hash = util._sha_data(key)
|
|
self.privkey_hash = util.printable_hash(key_hash)
|
|
|
|
def _extract_public_key(keyfile):
|
|
try:
|
|
f = open(keyfile, "r")
|
|
lines = f.readlines()
|
|
f.close()
|
|
except IOError, e:
|
|
logging.error("Error reading public key: %s" % e)
|
|
return None
|
|
|
|
# Extract the public key
|
|
magic = "ssh-dss "
|
|
key = ""
|
|
for l in lines:
|
|
l = l.strip()
|
|
if not l.startswith(magic):
|
|
continue
|
|
key = l[len(magic):]
|
|
break
|
|
if not len(key):
|
|
logging.error("Error parsing public key.")
|
|
return None
|
|
return key
|
|
|
|
def _extract_private_key(keyfile):
|
|
"""Get a private key from a private key file"""
|
|
# Extract the private key
|
|
try:
|
|
f = open(keyfile, "r")
|
|
lines = f.readlines()
|
|
f.close()
|
|
except IOError, e:
|
|
logging.error("Error reading private key: %s" % e)
|
|
return None
|
|
|
|
key = ""
|
|
for l in lines:
|
|
l = l.strip()
|
|
if l.startswith("-----BEGIN DSA PRIVATE KEY-----"):
|
|
continue
|
|
if l.startswith("-----END DSA PRIVATE KEY-----"):
|
|
continue
|
|
key += l
|
|
if not len(key):
|
|
logging.error("Error parsing private key.")
|
|
return None
|
|
return key
|
|
|
|
def _get_new_keypair(num):
|
|
"""Retrieve a public/private key pair for testing"""
|
|
# Generate keypair
|
|
privkeyfile = os.path.join("/tmp", "test%d.key" % num)
|
|
pubkeyfile = os.path.join("/tmp", 'test%d.key.pub' % num)
|
|
|
|
# force-remove key files if they exist to ssh-keygen doesn't
|
|
# start asking questions
|
|
try:
|
|
os.remove(pubkeyfile)
|
|
os.remove(privkeyfile)
|
|
except OSError:
|
|
pass
|
|
|
|
cmd = "ssh-keygen -q -t dsa -f %s -C '' -N ''" % privkeyfile
|
|
import commands
|
|
print "Generating new keypair..."
|
|
(s, o) = commands.getstatusoutput(cmd)
|
|
print "Done."
|
|
pubkey = privkey = None
|
|
if s != 0:
|
|
logging.error("Could not generate key pair: %d (%s)" % (s, o))
|
|
else:
|
|
pubkey = _extract_public_key(pubkeyfile)
|
|
privkey = _extract_private_key(privkeyfile)
|
|
|
|
try:
|
|
os.remove(pubkeyfile)
|
|
os.remove(privkeyfile)
|
|
except OSError:
|
|
pass
|
|
return (pubkey, privkey)
|
|
|
|
def _get_random_name():
|
|
"""Produce random names for testing"""
|
|
names = ["Liam", "Noel", "Guigsy", "Whitey", "Bonehead"]
|
|
return names[random.randint(0, len(names) - 1)]
|
|
|
|
def _get_random_image():
|
|
"""Produce a random image for display"""
|
|
import cairo, math, random, gtk
|
|
|
|
def rand():
|
|
return random.random()
|
|
|
|
SIZE = 200
|
|
|
|
s = cairo.ImageSurface(cairo.FORMAT_ARGB32, SIZE, SIZE)
|
|
cr = cairo.Context(s)
|
|
|
|
# background gradient
|
|
cr.save()
|
|
g = cairo.LinearGradient(0, 0, 1, 1)
|
|
g.add_color_stop_rgba(1, rand(), rand(), rand(), rand())
|
|
g.add_color_stop_rgba(0, rand(), rand(), rand(), rand())
|
|
cr.set_source(g)
|
|
cr.rectangle(0, 0, SIZE, SIZE);
|
|
cr.fill()
|
|
cr.restore()
|
|
|
|
# random path
|
|
cr.set_line_width(10 * rand() + 5)
|
|
cr.move_to(SIZE * rand(), SIZE * rand())
|
|
cr.line_to(SIZE * rand(), SIZE * rand())
|
|
cr.rel_line_to(SIZE * rand() * -1, 0)
|
|
cr.close_path()
|
|
cr.stroke()
|
|
|
|
# a circle
|
|
cr.set_source_rgba(rand(), rand(), rand(), rand())
|
|
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
|
|
cr.fill()
|
|
|
|
# another circle
|
|
cr.set_source_rgba(rand(), rand(), rand(), rand())
|
|
cr.arc(SIZE * rand(), SIZE * rand(), 100 * rand() + 30, 0, 2 * math.pi)
|
|
cr.fill()
|
|
|
|
def img_convert_func(buf, data):
|
|
data[0] += buf
|
|
return True
|
|
|
|
data = [""]
|
|
pixbuf = gtk.gdk.pixbuf_new_from_data(s.get_data(), gtk.gdk.COLORSPACE_RGB,
|
|
True, 8, s.get_width(), s.get_height(), s.get_stride())
|
|
pixbuf.save_to_callback(img_convert_func, "jpeg", {"quality": "90"}, data)
|
|
del pixbuf
|
|
|
|
return str(data[0])
|
|
|