Workaround segfault when emitting a signal with a None parameter

Also, support a response from requests be None in certain places.

3 files changed, 13 insertions, 7 deletions

diff --git a/src/leap/crypto/srpregister.py b/src/leap/crypto/srpregister.py
index 24f73504..de1978b5 100644
--- a/src/leap/crypto/srpregister.py
+++ b/src/leap/crypto/srpregister.py
@@ -124,7 +124,12 @@ class SRPRegister(QtCore.QObject):
         logger.debug('Post to uri: %s' % uri)
         logger.debug("Will try to register user = %s" % (username,))
 
-        ok = None
+        ok = False
+        # This should be None, but we don't like when PySide segfaults,
+        # so it something else.
+        # To reproduce it, just do:
+        # self.registration_finished.emit(False, None)
+        req = []
         try:
             req = self._session.post(uri,
                                      data=user_data,
@@ -132,12 +137,13 @@ class SRPRegister(QtCore.QObject):
                                      verify=self._provider_config.
                                      get_ca_cert_path())
 
-        except requests.exceptions.SSLError as exc:
-            logger.error("SSLError: %s" % exc.message)
-            req = None
+        except (requests.exceptions.SSLError,
+                requests.exceptions.ConnectionError) as exc:
+            logger.error(exc.message)
             ok = False
         else:
             ok = req.ok
+
         self.registration_finished.emit(ok, req)
         return ok
 
diff --git a/src/leap/gui/wizard.py b/src/leap/gui/wizard.py
index 5333edeb..2b48fc81 100644
--- a/src/leap/gui/wizard.py
+++ b/src/leap/gui/wizard.py
@@ -309,8 +309,8 @@ class Wizard(QtGui.QWizard):
                 error_msg = json_content.get("errors").get("login")[0]
                 if not error_msg.istitle():
                     error_msg = "%s %s" % (old_username, error_msg)
-            except:
-                logger.error("Unknown error: %r" % (req.content,))
+            except Exception as e:
+                logger.error("Unknown error: %r" % (e,))
 
             self._set_register_status(error_msg, error=True)
             self.ui.btnRegister.setEnabled(True)
diff --git a/src/leap/util/request_helpers.py b/src/leap/util/request_helpers.py
index 350abfbd..74aaa06b 100644
--- a/src/leap/util/request_helpers.py
+++ b/src/leap/util/request_helpers.py
@@ -41,7 +41,7 @@ def get_content(request):
     contents = ""
     mtime = None
 
-    if request.content and request.json:
+    if request and request.content and request.json:
         if callable(request.json):
             contents = json.dumps(request.json())
         else: