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<?php
/**
* Superclass for actions that redirect to a given return-to page on completion.
*
* PHP version 5
*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009-2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Brion Vibber <brion@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Superclass for actions that redirect to a given return-to page on completion.
*
* @category Action
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Brion Vibber <brion@status.net>
* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
* @link http://status.net/
*/
class RedirectingAction extends Action
{
/**
* Redirect browser to the page our hidden parameters requested,
* or if none given, to the url given by $this->defaultReturnTo().
*
* To be called only after successful processing.
*
* Note: this was named returnToArgs() up through 0.9.2, which
* caused problems because there's an Action::returnToArgs()
* already which does something different.
*
* @return void
*/
function returnToPrevious()
{
// Now, gotta figure where we go back to
$action = false;
$args = array();
$params = array();
foreach ($this->args as $k => $v) {
if ($k == 'returnto-action') {
$action = $v;
} else if (substr($k, 0, 15) == 'returnto-param-') {
$params[substr($k, 15)] = $v;
} elseif (substr($k, 0, 9) == 'returnto-') {
$args[substr($k, 9)] = $v;
}
}
if ($action) {
common_redirect(common_local_url($action, $args, $params), 303);
} else {
$url = $this->defaultReturnTo();
}
common_redirect($url, 303);
}
/**
* If we reached this form without returnto arguments, where should
* we go? May be overridden by subclasses to a reasonable destination
* for that action; default implementation throws an exception.
*
* @return string URL
*/
function defaultReturnTo()
{
$this->clientError(_("No return-to arguments."));
}
}
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