function _getChannel($action)
{
$timeline = null;
$arg1 = null;
$arg2 = null;
$action_name = $action->trimmed('action');
// FIXME: lists
// FIXME: search (!)
// FIXME: profile + tag
switch ($action_name) {
case 'public':
// no arguments
break;
case 'tag':
$tag = $action->trimmed('tag');
if (!empty($tag)) {
$arg1 = $tag;
} else {
$this->log(LOG_NOTICE, "Unexpected 'tag' action without tag argument");
return null;
}
break;
case 'showstream':
case 'all':
case 'replies':
case 'showgroup':
$nickname = common_canonical_nickname($action->trimmed('nickname'));
if (!empty($nickname)) {
$arg1 = $nickname;
} else {
$this->log(LOG_NOTICE, "Unexpected {$action_name} action without nickname argument.");
return null;
}
break;
default:
return null;
}
$user = common_current_user();
$user_id = !empty($user) ? $user->id : null;
$channel = Realtime_channel::getChannel($user_id, $action_name, $arg1, $arg2);
return $channel;
}
