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Defensive use of dynamic paths in maintenance script

Browse source 
Bug: T242134
Change-Id: I64fc136d3d19268008062dc8a2c655c8551244ea
This commit is contained in:
David Lynch 2020-02-18 19:41:05 -06:00 committed by Bartosz Dziewoński
parent 017245cb50
commit d543e7a4f9
1 changed files with 33 additions and 4 deletions
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37
maintenance/manageForeignResources.php
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@ -1,10 +1,32 @@
<?php
$IP = getenv( 'MW_INSTALL_PATH' );
if ( $IP === false ) {
$IP = __DIR__ . '/../../..';
namespace MediaWiki\Extension\DiscussionTools\Maintenance;
use ForeignResourceManager;
use Maintenance;
// Security: Disable all stream wrappers and reenable individually as needed
foreach ( stream_get_wrappers() as $wrapper ) {
stream_wrapper_unregister( $wrapper );
}
require_once "$IP/maintenance/Maintenance.php";
// Needed by the Guzzle library for some reason
stream_wrapper_restore( 'php' );
// Needed by ForeignResourceManager to unpack TAR files
stream_wrapper_restore( 'phar' );
stream_wrapper_restore( 'file' );
$basePath = getenv( 'MW_INSTALL_PATH' );
if ( $basePath ) {
if ( !is_dir( $basePath )
|| strpos( $basePath, '.' ) !== false
|| strpos( $basePath, '~' ) !== false
) {
die( "Bad MediaWiki install path: $basePath\n" );
}
} else {
$basePath = __DIR__ . '/../../..';
}
require_once "$basePath/maintenance/Maintenance.php";
class ManageForeignResources extends Maintenance {
@ -23,4 +45,11 @@ class ManageForeignResources extends Maintenance {
}
$maintClass = ManageForeignResources::class;
$doMaintenancePath = RUN_MAINTENANCE_IF_MAIN;
if ( !( file_exists( $doMaintenancePath ) &&
realpath( $doMaintenancePath ) === realpath( "$basePath/maintenance/doMaintenance.php" ) ) ) {
die( "Bad maintenance script location: $basePath\n" );
}
require_once RUN_MAINTENANCE_IF_MAIN;