1 files changed, 63 insertions, 0 deletions
diff --git a/src/sugar/presence/sugartubeconn.py b/src/sugar/presence/sugartubeconn.py
new file mode 100644
index 0000000..954ef67
--- /dev/null
+++ b/src/sugar/presence/sugartubeconn.py
@@ -0,0 +1,63 @@
+# Copyright (C) 2008 One Laptop Per Child
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser 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
+
+"""Subclass of TubeConnection that converts handles to Sugar Buddies
+
+STABLE.
+"""
+
+from telepathy.constants import (
+    CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES)
+
+from sugar.presence.tubeconn import TubeConnection
+from sugar.presence import presenceservice
+
+
+class SugarTubeConnection(TubeConnection):
+    """Subclass of TubeConnection that converts handles to Sugar Buddies"""
+
+    def __new__(cls, conn, tubes_iface, tube_id, address=None,
+                group_iface=None, mainloop=None):
+        self = super(SugarTubeConnection, cls).__new__(
+            cls, conn, tubes_iface, tube_id, address=address,
+            group_iface=group_iface, mainloop=mainloop)
+        self._conn = conn
+        self._group_iface = group_iface
+        return self
+
+    def get_buddy(self, cs_handle):
+        """Retrieve a Buddy object given a telepathy handle.
+
+        cs_handle: A channel-specific CONTACT type handle.
+        returns: sugar.presence Buddy object or None
+        """
+        pservice = presenceservice.get_instance()
+        if self.self_handle == cs_handle:
+            # It's me, just get my global handle
+            handle = self._conn.GetSelfHandle()
+        elif self._group_iface.GetGroupFlags() & \
+            CHANNEL_GROUP_FLAG_CHANNEL_SPECIFIC_HANDLES:
+            # The group (channel) has channel specific handles
+            handle = self._group_iface.GetHandleOwners([cs_handle])[0]
+        else:
+            # The group does not have channel specific handles
+            handle = cs_handle
+
+        # deal with failure to get the handle owner
+        if handle == 0:
+            return None
+        return pservice.get_buddy_by_telepathy_handle(
+            self._conn.service_name, self._conn.object_path, handle)