Warn the user on incompatible api error.

- Add a proper signal for the incompatible api error.
- Warn the user of an incompatible api.

3 files changed, 16 insertions, 3 deletions

diff --git a/src/leap/bitmask/backend.py b/src/leap/bitmask/backend.py
index 0dfc6b21..6b29d4b3 100644
--- a/src/leap/bitmask/backend.py
+++ b/src/leap/bitmask/backend.py
@@ -195,6 +195,7 @@ class Signaler(QtCore.QObject):
     prov_problem_with_provider = QtCore.Signal(object)
 
     prov_unsupported_client = QtCore.Signal(object)
+    prov_unsupported_api = QtCore.Signal(object)
 
     # These will exist both in the backend and the front end.
     # The frontend might choose to not "interpret" all the signals
@@ -208,6 +209,7 @@ class Signaler(QtCore.QObject):
     PROV_CHECK_API_CERTIFICATE_KEY = "prov_check_api_certificate"
     PROV_PROBLEM_WITH_PROVIDER_KEY = "prov_problem_with_provider"
     PROV_UNSUPPORTED_CLIENT = "prov_unsupported_client"
+    PROV_UNSUPPORTED_API = "prov_unsupported_api"
 
     def __init__(self):
         """
@@ -224,7 +226,8 @@ class Signaler(QtCore.QObject):
             self.PROV_CHECK_CA_FINGERPRINT_KEY,
             self.PROV_CHECK_API_CERTIFICATE_KEY,
             self.PROV_PROBLEM_WITH_PROVIDER_KEY,
-            self.PROV_UNSUPPORTED_CLIENT
+            self.PROV_UNSUPPORTED_CLIENT,
+            self.PROV_UNSUPPORTED_API
         ]
 
         for sig in signals:
diff --git a/src/leap/bitmask/gui/mainwindow.py b/src/leap/bitmask/gui/mainwindow.py
index 1bbce8d4..8c512ad2 100644
--- a/src/leap/bitmask/gui/mainwindow.py
+++ b/src/leap/bitmask/gui/mainwindow.py
@@ -374,6 +374,7 @@ class MainWindow(QtGui.QMainWindow):
         sig.prov_problem_with_provider.connect(self._login_problem_provider)
 
         sig.prov_unsupported_client.connect(self._needs_update)
+        sig.prov_unsupported_api.connect(self._incompatible_api)
 
     def _backend_disconnect(self):
         """
@@ -859,6 +860,16 @@ class MainWindow(QtGui.QMainWindow):
             "You can get the latest version from {0}").format(url)
         QtGui.QMessageBox.warning(self, self.tr("Update Needed"), msg)
 
+    def _incompatible_api(self):
+        """
+        Display a warning dialog to inform the user that the provider has an
+        incompatible API.
+        """
+        msg = self.tr(
+            "This provider is not compatible with the client.<br><br>"
+            "Error: API version incompatible.")
+        QtGui.QMessageBox.warning(self, self.tr("Incompatible Provider"), msg)
+
     def changeEvent(self, e):
         """
         Reimplements the changeEvent method to minimize to tray
diff --git a/src/leap/bitmask/provider/providerbootstrapper.py b/src/leap/bitmask/provider/providerbootstrapper.py
index e00dd646..52ebacd2 100644
--- a/src/leap/bitmask/provider/providerbootstrapper.py
+++ b/src/leap/bitmask/provider/providerbootstrapper.py
@@ -227,8 +227,7 @@ class ProviderBootstrapper(AbstractBootstrapper):
                          'Found: {1}.').format(api_supported, api_version)
 
                 logger.error(error)
-                self._signaler.signal(
-                    self._signaler.PROV_PROBLEM_WITH_PROVIDER_KEY)
+                self._signaler.signal(self._signaler.PROV_UNSUPPORTED_API)
                 raise UnsupportedProviderAPI(error)
 
     def run_provider_select_checks(self, domain, download_if_needed=False):