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# telepathy-sunshine is the GaduGadu connection manager for Telepathy
#
# Copyright (C) 2009 Collabora Ltd.
# Copyright (C) 2010 Krzysztof Klinikowski <kkszysiu@gmail.com>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
import logging
import dbus
import telepathy
from telepathy._generated.Connection_Interface_Contact_Capabilities \
import ConnectionInterfaceContactCapabilities
from sunshine.util.decorator import async
from sunshine.handle import SunshineHandleFactory
__all__ = ['SunshineCapabilities']
logger = logging.getLogger('Sunshine.Capabilities')
class SunshineCapabilities(telepathy.server.ConnectionInterfaceCapabilities,
ConnectionInterfaceContactCapabilities):
text_chat_class = \
({telepathy.CHANNEL_INTERFACE + '.ChannelType':
telepathy.CHANNEL_TYPE_TEXT,
telepathy.CHANNEL_INTERFACE + '.TargetHandleType':
dbus.UInt32(telepathy.HANDLE_TYPE_CONTACT)},
[telepathy.CHANNEL_INTERFACE + '.TargetHandle',
telepathy.CHANNEL_INTERFACE + '.TargetID'])
audio_chat_class = \
({telepathy.CHANNEL_INTERFACE + '.ChannelType':
telepathy.CHANNEL_TYPE_STREAMED_MEDIA,
telepathy.CHANNEL_INTERFACE + '.TargetHandleType':
dbus.UInt32(telepathy.HANDLE_TYPE_CONTACT)},
[telepathy.CHANNEL_INTERFACE + '.TargetHandle',
telepathy.CHANNEL_INTERFACE + '.TargetID',
telepathy.CHANNEL_TYPE_STREAMED_MEDIA + '.InitialAudio'])
av_chat_class = \
({telepathy.CHANNEL_INTERFACE + '.ChannelType':
telepathy.CHANNEL_TYPE_STREAMED_MEDIA,
telepathy.CHANNEL_INTERFACE + '.TargetHandleType':
dbus.UInt32(telepathy.HANDLE_TYPE_CONTACT)},
[telepathy.CHANNEL_INTERFACE + '.TargetHandle',
telepathy.CHANNEL_INTERFACE + '.TargetID',
telepathy.CHANNEL_TYPE_STREAMED_MEDIA + '.InitialAudio',
telepathy.CHANNEL_TYPE_STREAMED_MEDIA + '.InitialVideo'])
def __init__(self):
telepathy.server.ConnectionInterfaceCapabilities.__init__(self)
ConnectionInterfaceContactCapabilities.__init__(self)
# handle -> list(RCC)
self._contact_caps = {}
self._video_clients = []
self._update_capabilities_calls = []
def AdvertiseCapabilities(self, add, remove):
# for caps, specs in add:
# if caps == telepathy.CHANNEL_TYPE_STREAMED_MEDIA:
# if specs & telepathy.CHANNEL_MEDIA_CAPABILITY_VIDEO:
# self._self_handle.profile.client_id.has_webcam = True
# self._self_handle.profile.client_id.supports_rtc_video = True
# for caps in remove:
# if caps == telepathy.CHANNEL_TYPE_STREAMED_MEDIA:
# self._self_handle.profile.client_id.has_webcam = False
return telepathy.server.ConnectionInterfaceCapabilities.\
AdvertiseCapabilities(self, add, remove)
def GetContactCapabilities(self, handles):
if 0 in handles:
raise telepathy.InvalidHandle('Contact handle list contains zero')
ret = dbus.Dictionary({}, signature='ua(a{sv}as)')
for i in handles:
handle = self.handle(telepathy.HANDLE_TYPE_CONTACT, i)
# If the handle has no contact capabilities yet then it
# won't be in the dict. It's fair to return an empty list
# here for its contact caps.
if handle in self._contact_caps:
ret[handle] = dbus.Array(self._contact_caps[handle], signature='(a{sv}as)')
else:
ret[handle] = dbus.Array([], signature='(a{sv}as)')
return ret
def UpdateCapabilities(self, caps):
if self._status != telepathy.CONNECTION_STATUS_CONNECTED:
self._update_capabilities_calls.append(caps)
return
# voip is disabled, so
return
# We only care about voip.
for client, classes, capabilities in caps:
video = False
for channel_class in classes:
# Does this client support video?
if channel_class[telepathy.CHANNEL_INTERFACE + '.ChannelType'] == \
telepathy.CHANNEL_TYPE_STREAMED_MEDIA:
video = True
self._video_clients.append(client)
else:
# *Did* it used to support video?
if client in self._video_clients:
self._video_clients.remove(client)
changed = False
# We've got no more clients that support video; remove the cap.
if not video and not self._video_clients:
self._self_handle.profile.client_id.has_webcam = False
changed = True
# We want video.
if video and not self._self_handle.profile.client_id.has_webcam:
self._self_handle.profile.client_id.has_webcam = True
self._self_handle.profile.client_id.supports_rtc_video = True
changed = True
# Signal.
if changed:
updated = dbus.Dictionary({self._self_handle: self._contact_caps[self._self_handle]},
signature='ua(a{sv}as)')
self.ContactCapabilitiesChanged(updated)
def on_contact_client_capabilities_changed(self, contact):
self._update_capabilities(contact)
def contactAdded(self, handle):
"""When we add a contact in our contact list, add the
capabilities to create text channel to the contact"""
self.add_text_capabilities([handle])
def add_text_capabilities(self, contacts_handles):
"""Add the create capability for text channel to these contacts."""
ret = []
cc_ret = dbus.Dictionary({}, signature='ua(a{sv}as)')
for handle in contacts_handles:
ctype = telepathy.CHANNEL_TYPE_TEXT
if handle in self._caps and ctype in self._caps[handle]:
old_gen, old_spec = self._caps[handle][ctype]
else:
old_gen = 0
old_spec = 0
new_gen = old_gen
new_gen |= telepathy.CONNECTION_CAPABILITY_FLAG_CREATE
diff = (int(handle), ctype, old_gen, new_gen, old_spec, old_spec)
ret.append(diff)
# ContactCapabilities
self._contact_caps.setdefault(handle, []).append(self.text_chat_class)
cc_ret[handle] = self._contact_caps[handle]
self.CapabilitiesChanged(ret)
self.ContactCapabilitiesChanged(cc_ret)
# def add_create_capability(self, contact_handle):
# """Add the create capability for self handle."""
# ret = []
# cc_ret = dbus.Dictionary({}, signature='ua(a{sv}as)')
#
# ctype = telepathy.CHANNEL_TYPE_TEXT
# if handle in self._caps:
# old_gen, old_spec = self._caps[handle][ctype]
# else:
# old_gen = 0
# old_spec = 0
# new_gen = old_gen
# new_gen |= telepathy.CONNECTION_CAPABILITY_FLAG_CREATE
#
# diff = (int(handle), ctype, old_gen, new_gen, old_spec, old_spec)
# ret.append(diff)
#
# # ContactCapabilities
# self._contact_caps.setdefault(handle, []).append(self.text_chat_class)
# cc_ret[handle] = self._contact_caps[handle]
#
# self.CapabilitiesChanged(ret)
# self.ContactCapabilitiesChanged(cc_ret)
def _update_capabilities(self, contact):
handle = SunshineHandleFactory(self, 'contact',
contact.account, contact.network_id)
ctype = telepathy.CHANNEL_TYPE_STREAMED_MEDIA
new_gen, new_spec, rcc = self._get_capabilities(contact)
if handle in self._caps:
old_gen, old_spec = self._caps[handle][ctype]
else:
old_gen = 0
old_spec = 0
if old_gen != new_gen or old_spec != new_spec:
diff = (int(handle), ctype, old_gen, new_gen, old_spec, new_spec)
self.CapabilitiesChanged([diff])
if rcc is None:
return
self._contact_caps.setdefault(handle, [])
if rcc in self._contact_caps[handle]:
return
if self.audio_chat_class in self._contact_caps[handle]:
self._contact_caps[handle].remove(self.audio_chat_class)
if self.audio_chat_class in self._contact_caps[handle]:
self._contact_caps[handle].remove(self.audio_chat_class)
self._contact_caps[handle].append(rcc)
ret = dbus.Dictionary({handle: self._contact_caps[handle]},
signature='ua(a{sv}as)')
self.ContactCapabilitiesChanged(ret)
def _get_capabilities(self, contact):
gen_caps = 0
spec_caps = 0
rcc = None
caps = contact.client_capabilities
#if caps.supports_sip_invite:
#gen_caps |= telepathy.CONNECTION_CAPABILITY_FLAG_CREATE
#gen_caps |= telepathy.CONNECTION_CAPABILITY_FLAG_INVITE
#spec_caps |= telepathy.CHANNEL_MEDIA_CAPABILITY_AUDIO
#spec_caps |= telepathy.CHANNEL_MEDIA_CAPABILITY_NAT_TRAVERSAL_STUN
#if caps.has_webcam:
#spec_caps |= telepathy.CHANNEL_MEDIA_CAPABILITY_VIDEO
#rcc = self.av_chat_class
#else:
#rcc = self.audio_chat_class
return gen_caps, spec_caps, rcc
@async
def _populate_capabilities(self):
""" Add the capability to create text channels to all contacts in our
contacts list."""
handles = set([self._self_handle])
for contact in self.profile.contacts:
handle = SunshineHandleFactory(self, 'contact',
str(contact.uin), None)
handles.add(handle)
self.add_text_capabilities(handles)
# These caps were updated before we were online.
for caps in self._update_capabilities_calls:
self.UpdateCapabilities(caps)
self._update_capabilities_calls = []
def updateCapabilitiesCalls(self):
# These caps were updated before we were online.
for caps in self._update_capabilities_calls:
self.UpdateCapabilities(caps)
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