[enh] validate input and raise an exception inside search.py. The exception message is output in json and rss format.

1 files changed, 32 insertions, 0 deletions

diff --git a/searx/exceptions.py b/searx/exceptions.py
new file mode 100644
index 000000000..c605ddcab
--- /dev/null
+++ b/searx/exceptions.py
@@ -0,0 +1,32 @@
+'''
+searx is free software: you can redistribute it and/or modify
+it under the terms of the GNU Affero General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+searx is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Affero General Public License for more details.
+
+You should have received a copy of the GNU Affero General Public License
+along with searx. If not, see < http://www.gnu.org/licenses/ >.
+
+(C) 2017- by Alexandre Flament, <alex@al-f.net>
+'''
+
+
+class SearxException(Exception):
+    pass
+
+
+class SearxParameterException(SearxException):
+
+    def __init__(self, name, value):
+        if value == '' or value is None:
+            message = 'Empty ' + name + ' parameter'
+        else:
+            message = 'Invalid value "' + value + '" for parameter ' + name
+        super(SearxParameterException, self).__init__(message)
+        self.parameter_name = name
+        self.parameter_value = value