114 lines
3.1 KiB
PHP
114 lines
3.1 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2011, StatusNet, Inc.
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*
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* action periodically pinged by a page to keep a channel alive
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*
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* PHP version 5
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Realtime
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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// This check helps protect against security problems;
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// your code file can't be executed directly from the web.
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exit(1);
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}
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/**
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* Action periodically pinged by a page to keep a channel alive
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*
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* @category Realtime
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
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* @link http://status.net/
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*/
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class KeepalivechannelAction extends Action
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{
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protected $channelKey = null;
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protected $channel = null;
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/**
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* For initializing members of the class.
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*
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* @param array $args misc. arguments
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*
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* @return boolean true
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* @throws ClientException
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*/
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function prepare(array $args = [])
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{
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parent::prepare($args);
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if (!$this->isPost()) {
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// TRANS: Client exception. Do not translate POST.
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throw new ClientException(_m('You have to POST it.'));
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}
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$this->channelKey = $this->trimmed('channelkey');
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if (empty($this->channelKey)) {
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// TRANS: Client exception thrown when the channel key argument is missing.
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throw new ClientException(_m('No channel key argument.'));
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}
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$this->channel = Realtime_channel::getKV('channel_key', $this->channelKey);
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if (empty($this->channel)) {
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// TRANS: Client exception thrown when referring to a non-existing channel.
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throw new ClientException(_m('No such channel.'));
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}
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return true;
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}
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/**
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* Handler method
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*
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* @return void
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*/
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function handle()
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{
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$this->channel->touch();
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header('HTTP/1.1 204 No Content');
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return;
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}
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/**
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* Return true if read only.
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*
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* MAY override
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*
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* @param array $args other arguments
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*
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* @return boolean is read only action?
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*/
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function isReadOnly($args)
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{
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return false;
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}
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}
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