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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 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/>.
*
* PHP version 5
*
* @category Action
* @package StatusNet
* @author Brion Vibber <brion@status.net>
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
exit(1);
}
/**
* Takes parameters:
*
* - feed: a profile ID
* - token: session token to prevent CSRF attacks
* - ajax: boolean; whether to return Ajax or full-browser results
*
* Only works if the current user is logged in.
*
* @category Action
* @package StatusNet
* @copyright 2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
* @link http://status.net/
*/
abstract class BaseMirrorAction extends Action
{
var $user;
var $profile;
/**
* Check pre-requisites and instantiate attributes
*
* @param Array $args array of arguments (URL, GET, POST)
*
* @return boolean success flag
*/
function prepare($args)
{
parent::prepare($args);
return $this->sharedBoilerplate();
}
protected function validateFeedUrl($url)
{
if (common_valid_http_url($url)) {
return $url;
} else {
$this->clientError(_m("Invalid feed URL."));
}
}
protected function validateProfile($id)
{
$id = intval($id);
$profile = Profile::staticGet('id', $id);
if ($profile && $profile->id != $this->user->id) {
return $profile;
}
// TRANS: Error message returned to user when setting up feed mirroring, but we were unable to resolve the given URL to a working feed.
$this->clientError(_m("Invalid profile for mirroring."));
}
/**
*
* @param string $url
* @return Profile
*/
protected function profileForFeed($url)
{
$oprofile = Ostatus_profile::ensureProfileURL($url);
if ($oprofile->isGroup()) {
$this->clientError(_m("Can't mirror a StatusNet group at this time."));
}
$this->oprofile = $oprofile; // @fixme ugly side effect :D
return $oprofile->localProfile();
}
/**
* @fixme none of this belongs in end classes
* this stuff belongs in shared code!
*/
function sharedBoilerplate()
{
// Only allow POST requests
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
$this->clientError(_('This action only accepts POST requests.'));
return false;
}
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
$this->clientError(_('There was a problem with your session token.'.
' Try again, please.'));
return false;
}
// Only for logged-in users
$this->user = common_current_user();
if (empty($this->user)) {
$this->clientError(_('Not logged in.'));
return false;
}
return true;
}
/**
* Handle request
*
* Does the subscription and returns results.
*
* @param Array $args unused.
*
* @return void
*/
function handle($args)
{
// Throws exception on error
$this->saveMirror();
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
$this->element('title', null, _('Subscribed'));
$this->elementEnd('head');
$this->elementStart('body');
$unsubscribe = new EditMirrorForm($this, $this->profile);
$unsubscribe->show();
$this->elementEnd('body');
$this->elementEnd('html');
} else {
$url = common_local_url('mirrorsettings');
common_redirect($url, 303);
}
}
abstract function saveMirror();
}
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