Google: Add translate command (needs testing)

https://github.com/myano/jenni/blob/master/modules/translate.py
is where I got the idea from. Say thanks to sbp and yano too! :)

plugins/Google/plugin.py

@@ -233,6 +233,44 @@ class Google(callbacks.PluginRegexp):
         s = ', '.join([format('%s: %i', bold(s), i) for (i, s) in results])
         irc.reply(s)
 
+    @internationalizeDocstring
+    def translate(self, irc, msg, args, sourceLang, targetLang, text):
+        """<source language> [to] <target language> <text>
+
+        Returns <text> translated from <source language> into <target
+        language>.
+        """
+
+        channel = msg.args[0]
+
+        headers = utils.web.defaultHeaders
+        headers['User-Agent'] = ('Mozilla/5.0 (X11; U; Linux i686) '
+                                 'Gecko/20071127 Firefox/2.0.0.11')
+
+        sourceLang = urllib.quote(sourceLang)
+        targetLang = urllib.quote(targetLang)
+
+        text = urllib.quote(text)
+
+        result = utils.web.getUrlFd('http://translate.google.com/translate_a/t'
+                                    '?client=t&hl=en&sl=%s&tl=%s&multires=1'
+                                    '&otf=1&ssel=0&tsel=0&uptl=en&sc=1&text='
+                                    '%s' % (sourceLang, targetLang, text),
+                                    headers).read()
+
+        while ',,' in result:
+            result = result.replace(',,', ',null,')
+        data = json.loads(result)
+
+        try:
+            language = data[2]
+        except:
+            language = 'unknown'
+
+        irc.reply(''.join(x[0] for x in data[0]), language)
+        
+    translate = wrap(translate, ['something', 'to', 'something', 'text'])
+
     def googleSnarfer(self, irc, msg, match):
         r"^google\s+(.*)$"
         if not self.registryValue('searchSnarfer', msg.args[0]):