[bug] signal expired auth token to the GUI

In case of InvalidAuthTokeError from soledad sync we need signal the GUI, so
it will request her to log in again.

- Resolves: #7430

2 files changed, 9 insertions, 8 deletions

diff --git a/changes/bug-7430_signal_InvalidAuthTokenError b/changes/bug-7430_signal_InvalidAuthTokenError
new file mode 100644
index 0000000..cf805ba
--- /dev/null
+++ b/changes/bug-7430_signal_InvalidAuthTokenError
@@ -0,0 +1 @@
+- If the auth token has expired signal the GUI to request her to log in again (Closes: #7430)
diff --git a/src/leap/mail/incoming/service.py b/src/leap/mail/incoming/service.py
index d554c51..d8b91ba 100644
--- a/src/leap/mail/incoming/service.py
+++ b/src/leap/mail/incoming/service.py
@@ -228,18 +228,18 @@ class IncomingMail(Service):
         def _log_synced(result):
             log.msg('FETCH soledad SYNCED.')
             return result
-        try:
-            log.msg('FETCH: syncing soledad...')
-            d = self._soledad.sync()
-            d.addCallback(_log_synced)
-            return d
-        # TODO is this still raised? or should we do failure.trap
-        # instead?
-        except InvalidAuthTokenError:
+
+        def _signal_invalid_auth(failure):
+            failure.trap(InvalidAuthTokenError)
             # if the token is invalid, send an event so the GUI can
             # disable mail and show an error message.
             emit_async(catalog.SOLEDAD_INVALID_AUTH_TOKEN)
 
+        log.msg('FETCH: syncing soledad...')
+        d = self._soledad.sync()
+        d.addCallbacks(_log_synced, _signal_invalid_auth)
+        return d
+
     def _signal_fetch_to_ui(self, doclist):
         """
         Send leap events to ui.