gnu-social/actions/deletenotice.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
*
* Class for deleting a notice
*
* 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 Personal
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @copyright 2008 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
exit(1);
}
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// @todo FIXME: documentation needed.
class DeletenoticeAction extends Action
{
var $error = null;
var $user = null;
var $notice = null;
var $profile = null;
var $user_profile = null;
function prepare($args)
{
parent::prepare($args);
$this->user = common_current_user();
if (!$this->user) {
// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
common_user_error(_('Not logged in.'));
exit;
}
$notice_id = $this->trimmed('notice');
$this->notice = Notice::getKV($notice_id);
if (!$this->notice) {
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// TRANS: Error message displayed trying to delete a non-existing notice.
common_user_error(_('No such notice.'));
exit;
}
$this->profile = $this->notice->getProfile();
$this->user_profile = $this->user->getProfile();
return true;
}
function handle($args)
{
parent::handle($args);
if ($this->notice->profile_id != $this->user_profile->id &&
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!$this->user->hasRight(Right::DELETEOTHERSNOTICE)) {
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// TRANS: Error message displayed trying to delete a notice that was not made by the current user.
common_user_error(_('Cannot delete this notice.'));
exit;
}
// XXX: Ajax!
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$this->deleteNotice();
} else if ($_SERVER['REQUEST_METHOD'] == 'GET') {
$this->showForm();
}
}
/**
* Show the page notice
*
* Shows instructions for the page
*
* @return void
*/
function showPageNotice()
{
$instr = $this->getInstructions();
$output = common_markup_to_html($instr);
$this->elementStart('div', 'instructions');
$this->raw($output);
$this->elementEnd('div');
}
function getInstructions()
{
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// TRANS: Instructions for deleting a notice.
return _('You are about to permanently delete a notice. ' .
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'Once this is done, it cannot be undone.');
}
function title()
{
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// TRANS: Page title when deleting a notice.
return _('Delete notice');
}
/**
* Wrapper for showing a page
*
* Stores an error and shows the page
*
* @param string $error Error, if any
*
* @return void
*/
function showForm($error = null)
{
$this->error = $error;
$this->showPage();
}
/**
* Insert delete notice form into the content
*
* @return void
*/
function showContent()
{
$this->elementStart('form', array('id' => 'form_notice_delete',
'class' => 'form_settings',
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'method' => 'post',
'action' => common_local_url('deletenotice')));
$this->elementStart('fieldset');
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// TRANS: Fieldset legend for the delete notice form.
$this->element('legend', null, _('Delete notice'));
$this->hidden('token', common_session_token());
$this->hidden('notice', $this->trimmed('notice'));
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// TRANS: Message for the delete notice form.
$this->element('p', null, _('Are you sure you want to delete this notice?'));
$this->submit('form_action-no',
// TRANS: Button label on the delete notice form.
_m('BUTTON','No'),
'submit form_action-primary',
'no',
// TRANS: Submit button title for 'No' when deleting a notice.
_('Do not delete this notice.'));
$this->submit('form_action-yes',
// TRANS: Button label on the delete notice form.
_m('BUTTON','Yes'),
'submit form_action-secondary',
'yes',
// TRANS: Submit button title for 'Yes' when deleting a notice.
_('Delete this notice.'));
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
function deleteNotice()
{
// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
$this->showForm(_('There was a problem with your session token. ' .
'Try again, please.'));
return;
}
if ($this->arg('yes')) {
if (Event::handle('StartDeleteOwnNotice', array($this->user, $this->notice))) {
$this->notice->delete();
Event::handle('EndDeleteOwnNotice', array($this->user, $this->notice));
}
}
$url = common_get_returnto();
if ($url) {
common_set_returnto(null);
} else {
$url = common_local_url('public');
}
common_redirect($url, 303);
}
}