gnu-social/actions/unsubscribepeopletag.php

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2011-03-07 04:13:31 +09:00
<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Unsubscribe to a peopletag
*
* PHP version 5
*
* LICENCE: 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 Peopletag
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
/**
* Unsubscribe to a peopletag
*
* This is the action for subscribing to a peopletag. It works more or less like the join action
* for groups.
*
* @category Peopletag
* @package StatusNet
* @author Shashi Gowda <connect2shashi@gmail.com>
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
class UnsubscribepeopletagAction extends Action
{
var $peopletag = null;
var $tagger = null;
/**
* Prepare to run
*/
function prepare($args)
{
parent::prepare($args);
if (!common_logged_in()) {
// TRANS: Client error displayed when trying to perform an action while not logged in.
$this->clientError(_('You must be logged in to unsubscribe from a list.'));
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return false;
}
// Only allow POST requests
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
// TRANS: Client error displayed when trying to use another method than POST.
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$this->clientError(_('This action only accepts POST requests.'));
return false;
}
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
// TRANS: Client error displayed when the session token does not match or is not given.
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$this->clientError(_('There was a problem with your session token.'.
' Try again, please.'));
return false;
}
$tagger_arg = $this->trimmed('tagger');
$tag_arg = $this->trimmed('tag');
$id = intval($this->arg('id'));
if ($id) {
$this->peopletag = Profile_list::getKV('id', $id);
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} else {
// TRANS: Client error displayed when trying to perform an action without providing an ID.
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$this->clientError(_('No ID given.'), 404);
return false;
}
if (!$this->peopletag || $this->peopletag->private) {
// TRANS: Client error displayed trying to reference a non-existing list.
$this->clientError(_('No such list.'), 404);
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return false;
}
$this->tagger = Profile::getKV('id', $this->peopletag->tagger);
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return true;
}
/**
* Handle the request
*
* On POST, add the current user to the group
*
* @param array $args unused
*
* @return void
*/
function handle($args)
{
parent::handle($args);
$cur = common_current_user();
Profile_tag_subscription::remove($this->peopletag, $cur);
if ($this->boolean('ajax')) {
$this->startHTML('text/xml;charset=utf-8');
$this->elementStart('head');
// TRANS: Page title for form that allows unsubscribing from a list.
// TRANS: %1$s is a nickname, %2$s is a list, %3$s is a tagger nickname.
$this->element('title', null, sprintf(_('%1$s unsubscribed from list %2$s by %3$s'),
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$cur->nickname,
$this->peopletag->tag,
$this->tagger->nickname));
$this->elementEnd('head');
$this->elementStart('body');
$lf = new SubscribePeopletagForm($this, $this->peopletag);
$lf->show();
$this->elementEnd('body');
$this->elementEnd('html');
} else {
if (common_get_returnto()) {
common_redirect(common_get_returnto(), 303);
return true;
}
common_redirect(common_local_url('peopletagsbyuser',
array('nickname' => $this->tagger->nickname)),
303);
}
}
}