ShrinkUrl: Implement @expand. Closes GH-392.

plugins/ShrinkUrl/plugin.py

@@ -46,9 +46,12 @@ class CdbShrunkenUrlDB(object):
     def __init__(self, filename):
         self.dbs = {}
         cdb = conf.supybot.databases.types.cdb
-        for service in conf.supybot.plugins.ShrinkUrl.default.validStrings:
+        def register_service(service):
             dbname = filename.replace('.db', service.capitalize() + '.db')
             self.dbs[service] = cdb.connect(dbname)
+        for service in conf.supybot.plugins.ShrinkUrl.default.validStrings:
+            register_service(service)
+        register_service('Expand')
 
     def get(self, service, url):
         return self.dbs[service][url]
@@ -320,6 +323,32 @@ class ShrinkUrl(callbacks.PluginRegexp):
             irc.error(str(e))
     x0 = thread(wrap(x0, ['url']))
 
+    def _getExpandUrl(self, url):
+        url = utils.web.urlquote(url)
+        try:
+            return self.db.get('Expand', url)
+        except KeyError:
+            text = utils.web.getUrl('http://api.longurl.org/v2/expand?url=' + url)
+            text = text.decode()
+            text = text.split('<![CDATA[', 1)[1].split(']]>', 1)[0]
+            self.db.set('Expand', url, text)
+            return text
+
+    @internationalizeDocstring
+    def expand(self, irc, msg, args, url):
+        """<url>
+
+        Returns an expanded version of <url>.
+        """
+        try:
+            expandurl = self._getExpandUrl(url)
+            m = irc.reply(expandurl)
+            if m is not None:
+                m.tag('shrunken')
+        except ShrinkError, e:
+            irc.error(str(e))
+    expand = thread(wrap(expand, ['url']))
+
 Class = ShrinkUrl
 
 # vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79:

plugins/ShrinkUrl/test.py

@@ -130,4 +130,11 @@ class ShrinkUrlTestCase(ChannelPluginTestCase):
                 shrink.minimumLength.setValue(origLen)
                 shrink.nonSnarfingRegexp.setValue(origRegexp)
 
+        def testExpand(self):
+            self.assertResponse('expand http://x0.no/0l2k', self.udUrl)
+            self.assertResponse('expand http://x0.no/0l2k', self.udUrl)
+            self.assertResponse('expand http://x0.no/0l2j', self.sfUrl)
+            self.assertResponse('expand http://x0.no/0l2j', self.sfUrl)
+            self.assertResponse('expand http://x0.no/0l2k', self.udUrl)
+
 # vim:set shiftwidth=4 softtabstop=4 expandtab textwidth=79: