Google: Configurable base URL. Closes GH-64.

plugins/Google/config.py

@@ -101,6 +101,9 @@ conf.registerGlobalValue(Google, 'referer',
     the Referer field of the search requests.  If this value is empty, a
     Referer will be generated in the following format:
     http://$server/$botName""")))
+conf.registerChannelValue(Google, 'baseUrl',
+    registry.String('google.com', _("""Determines the base URL used for
+    requests.""")))
 conf.registerChannelValue(Google, 'searchSnarfer',
     registry.Boolean(False, _("""Determines whether the search snarfer is
     enabled.  If so, messages (even unaddressed ones) beginning with the word

plugins/Google/plugin.py

@@ -290,13 +290,15 @@ class Google(callbacks.PluginRegexp):
     def _googleUrl(self, s):
         s = s.replace('+', '%2B')
         s = s.replace(' ', '+')
-        url = r'http://google.com/search?q=' + s
+        url = r'http://%s/search?q=%s' % \
+                (self.registryValue('baseUrl', channel), s)
         return url
 
     def _googleUrlIG(self, s):
         s = s.replace('+', '%2B')
         s = s.replace(' ', '+')
-        url = r'http://www.google.com/ig/calculator?hl=en&q=' + s
+        url = r'http://%s/ig/calculator?hl=en&q=%s' % \
+                (self.registryValue('baseUrl', channel), s)
         return url
 
     _calcRe1 = re.compile(r'<table.*class="?obcontainer"?[^>]*>(.*?)</table>', re.I)