wiki.techinc.nl/includes/auth/CheckBlocksSecondaryAuthenticationProvider.php
DannyS712 c1db64b808 Make use of ??= in more places
New feature from PHP 7.4

Change-Id: Ifa7a9bc7b2ec415ad7ecb23f4c1776f51f58fd6b
2022-12-17 01:10:13 +00:00

135 lines
4.8 KiB
PHP

<?php
/**
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @file
* @ingroup Auth
*/
namespace MediaWiki\Auth;
use MediaWiki\Block\AbstractBlock;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
use StatusValue;
/**
* Check if the user is blocked, and prevent authentication if so.
*
* Not all scenarios are covered by this class, AuthManager does some block checks itself
* via AuthManager::authorizeCreateAccount().
*
* @ingroup Auth
* @since 1.27
*/
class CheckBlocksSecondaryAuthenticationProvider extends AbstractSecondaryAuthenticationProvider {
/** @var bool */
protected $blockDisablesLogin = null;
/**
* @param array $params
* - blockDisablesLogin: (bool) Whether blocked accounts can log in,
* defaults to $wgBlockDisablesLogin
*/
public function __construct( $params = [] ) {
if ( isset( $params['blockDisablesLogin'] ) ) {
$this->blockDisablesLogin = (bool)$params['blockDisablesLogin'];
}
}
/** @inheritDoc */
protected function postInitSetup() {
$this->blockDisablesLogin ??= $this->config->get( MainConfigNames::BlockDisablesLogin );
}
/** @inheritDoc */
public function getAuthenticationRequests( $action, array $options ) {
return [];
}
/** @inheritDoc */
public function beginSecondaryAuthentication( $user, array $reqs ) {
if ( !$this->blockDisablesLogin ) {
return AuthenticationResponse::newAbstain();
}
$block = $user->getBlock();
// Ignore IP blocks and partial blocks, $wgBlockDisablesLogin was meant for
// blocks banning specific users.
if ( $block && $block->isSitewide() && $block->isBlocking( $user ) ) {
return AuthenticationResponse::newFail(
new \Message( 'login-userblocked', [ $user->getName() ] )
);
} else {
return AuthenticationResponse::newPass();
}
}
/** @inheritDoc */
public function beginSecondaryAccountCreation( $user, $creator, array $reqs ) {
return AuthenticationResponse::newAbstain();
}
/** @inheritDoc */
public function testUserForCreation( $user, $autocreate, array $options = [] ) {
// isBlockedFromCreateAccount() does not return non-accountcreation blocks, but we need them
// in the $wgBlockDisablesLogin case; getBlock() is unreliable for IP blocks. So we need both.
$blocks = [
'local-createaccount' => $user->isBlockedFromCreateAccount(),
'local' => $user->getBlock(),
];
foreach ( $blocks as $block ) {
/** @var AbstractBlock $block */
if ( $block && $block->isSitewide()
// This method is for checking a given account/username, not the current user, so
// ignore IP blocks; they will be checked elsewhere via authorizeCreateAccount().
// FIXME: special-case autocreation which doesn't do that check. Should it?
&& ( $block->isBlocking( $user ) || $autocreate )
&& (
// Should blocks that prevent account creation also prevent autocreation?
// We'll go with yes here.
$block->isCreateAccountBlocked()
// A successful autocreation means the user is logged in, so we must make sure to
// honor $wgBlockDisablesLogin. If it's enabled, sitewide blocks are expected to
// prevent login regardless of their flags.
|| ( $autocreate && $this->blockDisablesLogin )
)
// FIXME: ideally on autocreation we'd figure out if the user has the ipblock-exempt
// or globalblock-exempt right via some central authorization system like
// CentralAuth global groups. But at this point the local account doesn't exist
// yet so there is no way to do that. There should probably be some separate hook
// to fetch user rights for a central user.
// FIXME: T249444: there should probably be a way to force autocreation through blocks
) {
$formatter = MediaWikiServices::getInstance()->getBlockErrorFormatter();
$context = \RequestContext::getMain();
$language = $context->getUser()->isSafeToLoad() ?
\RequestContext::getMain()->getLanguage() :
MediaWikiServices::getInstance()->getContentLanguage();
$ip = $context->getRequest()->getIP();
return StatusValue::newFatal(
$formatter->getMessage( $block, $user, $language, $ip )
);
}
}
return StatusValue::newGood();
}
}