1 files changed, 44 insertions, 0 deletions
diff --git a/searx/plugins/tracker_url_remover.py b/searx/plugins/tracker_url_remover.py
new file mode 100644
index 000000000..ed71c94d3
--- /dev/null
+++ b/searx/plugins/tracker_url_remover.py
@@ -0,0 +1,44 @@
+'''
+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) 2015 by Adam Tauber, <asciimoo@gmail.com>
+'''
+
+from flask.ext.babel import gettext
+import re
+from urlparse import urlunparse
+
+regexes = {re.compile(r'utm_[^&]+&?'),
+           re.compile(r'(wkey|wemail)[^&]+&?'),
+           re.compile(r'&$')}
+
+name = gettext('Tracker URL remover')
+description = gettext('Remove trackers arguments from the returned URL')
+default_on = True
+
+
+def on_result(request, ctx):
+    query = ctx['result']['parsed_url'].query
+
+    if query == "":
+        return True
+
+    for reg in regexes:
+        query = reg.sub('', query)
+
+    if query != ctx['result']['parsed_url'].query:
+        ctx['result']['parsed_url'] = ctx['result']['parsed_url']._replace(query=query)
+        ctx['result']['url'] = urlunparse(ctx['result']['parsed_url'])
+
+    return True