stdui (contact_list): use jid.JID to check the JID instead of an approximative regex

src/stdui/ui_contact_list.py

@@ -224,7 +224,9 @@ class ContactList(object):
         @return dict
         """
         contact_jid_s = data[xml_tools.formEscape('contact_jid')]
-        if not re.match(r'^.+@.+\..+', contact_jid_s, re.IGNORECASE):
+        try:
+            contact_jid = jid.JID(contact_jid_s)
+        except (RuntimeError, jid.InvalidFormat, AttributeError):
             # TODO: replace '\t' by a constant (see tools.xmlui.XMLUI.onFormSubmitted)
             data['selected_groups'] = data[xml_tools.formEscape('groups_list')].split('\t')
             options = {'id': self.__add_id,
@@ -232,7 +234,6 @@ class ContactList(object):
                        'contact_text': D_('Please enter a valid JID (like "contact@%s"):') % self.default_host,
                        }
             return self.getDialogXMLUI(options, data, profile)
-        contact_jid = jid.JID(contact_jid_s)
         self.host.addContact(contact_jid, profile_key=profile)
         return self._updateContact(data, profile)  # after adding, updating