server/lib/repair/repairmimetypes.php

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<?php
/**
* Copyright (c) 2014 Vincent Petry <pvince81@owncloud.com>
* Copyright (c) 2014 Jörn Dreyer jfd@owncloud.com
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Repair;
use OC\Hooks\BasicEmitter;
class RepairMimeTypes extends BasicEmitter implements \OC\RepairStep {
public function getName() {
return 'Repair mime types';
}
private function fixOfficeMimeTypes() {
// update wrong mimetypes
$wrongMimetypes = array(
'application/mspowerpoint' => 'application/vnd.ms-powerpoint',
'application/msexcel' => 'application/vnd.ms-excel',
);
$stmt = \OC_DB::prepare('
UPDATE `*PREFIX*mimetypes`
SET `mimetype` = ?
WHERE `mimetype` = ?
');
foreach ($wrongMimetypes as $wrong => $correct) {
\OC_DB::executeAudited($stmt, array($wrong, $correct));
}
$updatedMimetypes = array(
'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'xlsx' => 'application/vnd.ms-excel',
'pptx' => 'application/vnd.ms-powerpoint',
);
// separate doc from docx etc
foreach ($updatedMimetypes as $extension => $mimetype ) {
$result = \OC_DB::executeAudited('
SELECT count(`mimetype`)
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
', array($mimetype)
);
$exists = $result->fetchOne();
if ( ! $exists ) {
// insert mimetype
\OC_DB::executeAudited('
INSERT INTO `*PREFIX*mimetypes` ( `mimetype` )
VALUES ( ? )
', array($mimetype)
);
}
// change mimetype for files with x extension
\OC_DB::executeAudited('
UPDATE `*PREFIX*filecache`
SET `mimetype` = (
SELECT `id`
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
) WHERE `name` LIKE ?
', array($mimetype, '%.'.$extension)
);
}
return true;
}
/**
* Fix mime types
*/
public function run() {
// TODO: check precondition to avoid running the fix every time
if ($this->fixOfficeMimeTypes()) {
$this->emit('\OC\Repair', 'info', array('Fixed office mime types'));
}
}
}