disconnect Salut when msh0 got an not LL IP (#6299)

1 files changed, 29 insertions, 1 deletions

diff --git a/src/linklocal_plugin.py b/src/linklocal_plugin.py
index 5646018..b741d02 100644
--- a/src/linklocal_plugin.py
+++ b/src/linklocal_plugin.py
@@ -62,6 +62,10 @@ class LinkLocalPlugin(TelepathyPlugin):
         self._watch = self._sys_bus.watch_name_owner('org.freedesktop.Avahi',
                                                      self._avahi_owner_cb)
 
+        # Glib source ID indicating we have to wait before be allowed to try
+        # to connect
+        self._have_to_wait_id = 0
+
     def _avahi_owner_cb(self, unique_name):
         had_avahi = self._have_avahi
 
@@ -89,7 +93,8 @@ class LinkLocalPlugin(TelepathyPlugin):
         self._watch = None
 
     def _could_connect(self):
-        return TelepathyPlugin._could_connect(self) and self._have_avahi
+        return TelepathyPlugin._could_connect(self) and self._have_avahi and \
+                self._have_to_wait_id == 0
 
     def _get_account_info(self):
         """Retrieve connection manager parameters for this account
@@ -194,3 +199,26 @@ class LinkLocalPlugin(TelepathyPlugin):
                 ret[handle] = 'salut/' + psutils.escape_identifier(ident)
 
         return ret
+
+
+    def _have_to_wait_cb(self):
+        if self._have_to_wait_id > 0:
+            gobject.source_remove(self._have_to_wait_id)
+            self._have_to_wait_id = 0
+
+        _logger.debug("Timeout elapsed. Salut can connect now")
+        self.start()
+
+    def _ip4_address_changed_cb(self, ip4am, address, iface):
+        TelepathyPlugin._ip4_address_changed_cb(self, ip4am, address, iface)
+
+        # FIXME: what about IPv6 ?
+        if iface == "msh0" and not address.startswith("169.254."):
+            # msh0 got a not link-local IP so we are connected to a school
+            # server.  Let's disable Salut. See #6299 for details.
+            _logger.debug("Connected to a school server. Disable Salut")
+            self._stop()
+
+            # Salut can't connect during the next 2 minutes
+            self._have_to_wait_id = gobject.timeout_add(120000,
+                    self._have_to_wait_cb)