Add a disco#info plugin, /disco.

plugins/disco.py

@@ -0,0 +1,57 @@
+"""
+Do a disco#info query on a JID
+
+Usage
+-----
+
+.. glossary::
+
+    /disco
+        **Usage:** ``/disco <JID>``
+
+        This command queries a JID for its disco#info.
+
+        There is no cache, as this is generally used for debug more than
+        anything user-related.
+"""
+
+from poezio.plugin import BasePlugin
+from slixmpp.jid import InvalidJID
+
+class Plugin(BasePlugin):
+    def init(self):
+        self.api.add_command('disco', self.command_disco,
+                usage='<JID>',
+                short='Get the disco#info of a JID',
+                help='Get the disco#info of a JID')
+
+    def on_disco(self, iq):
+        info = iq['disco_info']
+        identities = (str(identity) for identity in info['identities'])
+        self.api.information('\n'.join(identities), 'Identities')
+        features = sorted(str(feature) for feature in info['features'])
+        self.api.information('\n'.join(features), 'Features')
+        for field in info['form']['fields']:
+            if field['type'] == 'hidden' and field['var'] == 'FORM_TYPE':
+                value = field['value']
+                if 'http://jabber.org/network/serverinfo' not in value:
+                    self.api.error('Unknown form type “%s”' % value, 'Form')
+                    return
+                break
+        server_info = []
+        for field in info['form']:
+            var = field['var']
+            if field['type'] == 'hidden' and var == 'FORM_TYPE':
+                continue
+            sep = '\n  ' + len(var) * ' '
+            value = sep.join(field.get_value(convert=False))
+            server_info.append('%s: %s' % (var, value))
+        if server_info:
+            self.api.information('\n'.join(server_info), 'Server Info')
+
+    def command_disco(self, jid):
+        try:
+            self.core.xmpp.plugin['xep_0030'].get_info(jid=jid, cached=False,
+                                                       callback=self.on_disco)
+        except InvalidJID as e:
+            self.api.information('Invalid JID “%s”: %s' % (jid, e), 'Error')