nextcloud/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
* Copyright (c) 2014 Olivier Paroz owncloud@oparoz.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 static function existsStmt() {
return \OC_DB::prepare('
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SELECT count(`mimetype`)
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
');
}
private static function getIdStmt() {
return \OC_DB::prepare('
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SELECT `id`
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
');
}
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private static function insertStmt() {
return \OC_DB::prepare('
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INSERT INTO `*PREFIX*mimetypes` ( `mimetype` )
VALUES ( ? )
');
}
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private static function updateWrongStmt() {
return \OC_DB::prepare('
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UPDATE `*PREFIX*filecache`
SET `mimetype` = (
SELECT `id`
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
) WHERE `mimetype` = ?
');
}
private static function deleteStmt() {
return \OC_DB::prepare('
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DELETE FROM `*PREFIX*mimetypes`
WHERE `id` = ?
');
}
private static function updateByNameStmt() {
return \OC_DB::prepare('
UPDATE `*PREFIX*filecache`
SET `mimetype` = (
SELECT `id`
FROM `*PREFIX*mimetypes`
WHERE `mimetype` = ?
) WHERE `name` LIKE ?
');
}
private function repairMimetypes($wrongMimetypes) {
foreach ($wrongMimetypes as $wrong => $correct) {
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// do we need to remove a wrong mimetype?
$result = \OC_DB::executeAudited(self::getIdStmt(), array($wrong));
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$wrongId = $result->fetchOne();
if ($wrongId !== false) {
// do we need to insert the correct mimetype?
$result = \OC_DB::executeAudited(self::existsStmt(), array($correct));
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$exists = $result->fetchOne();
if ( ! is_null($correct) ) {
if ( ! $exists ) {
// insert mimetype
\OC_DB::executeAudited(self::insertStmt(), array($correct));
}
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// change wrong mimetype to correct mimetype in filecache
\OC_DB::executeAudited(self::updateWrongStmt(), array($correct, $wrongId));
}
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// delete wrong mimetype
\OC_DB::executeAudited(self::deleteStmt(), array($wrongId));
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}
}
}
private function updateMimetypes($updatedMimetypes) {
foreach ($updatedMimetypes as $extension => $mimetype ) {
$result = \OC_DB::executeAudited(self::existsStmt(), array($mimetype));
$exists = $result->fetchOne();
if ( ! $exists ) {
// insert mimetype
\OC_DB::executeAudited(self::insertStmt(), array($mimetype));
}
// change mimetype for files with x extension
\OC_DB::executeAudited(self::updateByNameStmt(), array($mimetype, '%.'.$extension));
}
}
private function fixOfficeMimeTypes() {
// update wrong mimetypes
$wrongMimetypes = array(
'application/mspowerpoint' => 'application/vnd.ms-powerpoint',
'application/msexcel' => 'application/vnd.ms-excel',
);
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self::repairMimetypes($wrongMimetypes);
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$updatedMimetypes = array(
'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
);
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// separate doc from docx etc
self::updateMimetypes($updatedMimetypes);
}
private function fixApkMimeType() {
$updatedMimetypes = array(
'apk' => 'application/vnd.android.package-archive',
);
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self::updateMimetypes($updatedMimetypes);
}
private function fixFontsMimeTypes() {
// update wrong mimetypes
$wrongMimetypes = array(
'font' => null,
'font/opentype' => 'application/font-sfnt',
'application/x-font-ttf' => 'application/font-sfnt',
);
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self::repairMimetypes($wrongMimetypes);
$updatedMimetypes = array(
'ttf' => 'application/font-sfnt',
'otf' => 'application/font-sfnt',
'pfb' => 'application/x-font',
);
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self::updateMimetypes($updatedMimetypes);
}
private function fixPostscriptMimeType() {
$updatedMimetypes = array(
'eps' => 'application/postscript',
'ps' => 'application/postscript',
);
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self::updateMimetypes($updatedMimetypes);
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}
/**
* Fix mime types
*/
public function run() {
if ($this->fixOfficeMimeTypes()) {
$this->emit('\OC\Repair', 'info', array('Fixed office mime types'));
}
if ($this->fixApkMimeType()) {
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$this->emit('\OC\Repair', 'info', array('Fixed APK mime type'));
}
if ($this->fixFontsMimeTypes()) {
$this->emit('\OC\Repair', 'info', array('Fixed fonts mime types'));
}
if ($this->fixPostscriptMimeType()) {
$this->emit('\OC\Repair', 'info', array('Fixed Postscript mime types'));
}
}
}