Force admins to set secret_key if debug mode is disabled

This commit also enables debug mode for unit tests.

searx/__init__.py

@@ -85,3 +85,7 @@ if 'SEARX_SECRET' in environ:
     settings['server']['secret_key'] = environ['SEARX_SECRET']
 if 'SEARX_BIND_ADDRESS' in environ:
     settings['server']['bind_address'] = environ['SEARX_BIND_ADDRESS']
+
+if not searx_debug and settings['server']['secret_key'] == 'ultrasecretkey':
+    logger.error('server.secret_key is not changed. Please use something else instead of ultrasecretkey.')
+    exit(1)

searx/settings_robot.yml

@@ -8,7 +8,7 @@ search:
 server:
     port : 11111
     bind_address : 127.0.0.1
-    secret_key : "ultrasecretkey" # change this!
+    secret_key : "changedultrasecretkey"
     base_url : False
     http_protocol_version : "1.0"
 

tests/__init__.py

@@ -0,0 +1,2 @@
+import os
+os.environ['SEARX_DEBUG'] = '1'