gnu-social/actions/plugindelete.php

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<?php
// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
defined('STATUSNET') || die();
require_once INSTALLDIR . '/lib/deletetree.php';
/**
* Form for deleting a plugin
*
* @category Action
* @package GNUsocial
* @author Diogo Cordeiro <diogo@fc.up.pt>
* @copyright 2019 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
class PlugindeleteAction extends Action
{
var $user;
var $plugin;
/**
* Check pre-requisites and instantiate attributes
*
* @param array $args array of arguments (URL, GET, POST)
*
* @return bool success flag
* @throws ClientException
*/
function prepare(array $args = [])
{
parent::prepare($args);
// @fixme these are pretty common, should a parent class factor these out?
// Only allow POST requests
if ($_SERVER['REQUEST_METHOD'] != 'POST') {
// TRANS: Client error displayed when trying to use another method than POST.
// TRANS: Do not translate POST.
$this->clientError(_m('This action only accepts POST requests.'));
}
// 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.
$this->clientError(_m('There was a problem with your session token.'.
' Try again, please.'));
}
// Only for logged-in users
$this->user = common_current_user();
if (empty($this->user)) {
// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
$this->clientError(_m('Not logged in.'));
}
if (!AdminPanelAction::canAdmin('plugins')) {
// TRANS: Client error displayed when trying to enable or disable a plugin without access rights.
$this->clientError(_m('You cannot administer plugins.'));
}
$this->plugin = $this->arg('plugin');
if (!array_key_exists($this->plugin, array_flip(PluginList::grabAllPluginNames()))) {
// TRANS: Client error displayed when trying to enable or disable a non-existing plugin.
$this->clientError(_m('No such plugin.'));
}
return true;
}
/**
* Handle request
*
* Does the subscription and returns results.
*
* @return void
* @throws ClientException
*/
function handle()
{
if (PluginList::isPluginLoaded($this->plugin)) {
$this->clientError(_m('You can\'t delete a plugin without first removing its loader from your config.php.'));
}
if (!is_writable(INSTALLDIR . '/local/plugins/'.$this->plugin)) {
$this->clientError(_m('We can only delete third party plugins.'));
}
deleteTree(INSTALLDIR . '/local/plugins/'.$this->plugin);
deleteTree(PUBLICDIR . '/local/plugins/'.$this->plugin);
$url = common_local_url('pluginsadminpanel');
common_redirect($url, 303);
}
}