auth: validate dictionary backend settings

Author: efiop

pydrive2/auth.py

@@ -349,10 +349,15 @@ def _InitializeStoragesFromSettings(self):
                 )
             result[backend] = Storage(credentials_file)
         elif backend == "dictionary":
-            result[backend] = DictionaryStorage(
-                self.settings["save_credentials_dict"],
-                self.settings["save_credentials_key"],
-            )
+            creds_dict = self.settings.get("save_credentials_dict")
+            if creds_dict is None:
+                raise InvalidConfigError("Please specify credentials dict")
+
+            creds_key = self.settings.get("save_credentials_key")
+            if creds_key is None:
+                raise InvalidConfigError("Please specify credentials key")
+
+            result[backend] = DictionaryStorage(creds_dict, creds_key)
         elif save_credentials:
             raise InvalidConfigError(
                 "Unknown save_credentials_backend: %s" % backend

pydrive2/settings.py

@@ -36,7 +36,9 @@
         "type": str,
         "required": False,
         "dependency": [
-            {"value": "file", "attribute": ["save_credentials_file"]}
+            {"value": "file", "attribute": ["save_credentials_file"]},
+            {"value": "dictionary", "attribute": ["save_credentials_dict"]},
+            {"value": "dictionary", "attribute": ["save_credentials_key"]},
         ],
     },
     "client_config": {
@@ -84,6 +86,8 @@
         "default": ["https://www.googleapis.com/auth/drive"],
     },
     "save_credentials_file": {"type": str, "required": False},
+    "save_credentials_dict": {"type": dict, "required": False},
+    "save_credentials_key": {"type": str, "required": False},
 }