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92 lines
3.1 KiB
92 lines
3.1 KiB
<?php
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// (c) Copyright by authors of the Tiki Wiki CMS Groupware Project
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//
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// All Rights Reserved. See copyright.txt for details and a complete list of authors.
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// Licensed under the GNU LESSER GENERAL PUBLIC LICENSE. See license.txt for details.
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// $Id$
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namespace Tiki\File;
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use Tiki\Lib\Unoconv\UnoconvLib;
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class PDFHelper
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{
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/**
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* Checks if a given mimetype is able to be converted to PDF.
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*
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* @param $mimeType
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* @return bool
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*/
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public static function canConvertToPDF($mimeType)
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{
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return strpos($mimeType, 'application/vnd.openxmlformats-officedocument') !== false ||
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strpos($mimeType, 'application/vnd.ms') !== false ||
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$mimeType == 'application/msword' ||
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strpos($mimeType, 'application/vnd.oasis.opendocument.') !== false;
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}
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/**
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* Converts a tiki file to PDF
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*
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* @param $fileId
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* @return null|string
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* @throws \Exception
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*/
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public static function convertToPDF($fileId)
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{
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global $user, $tikidomain;
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$userLib = \TikiLib::lib('user');
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$file = \Tiki\FileGallery\File::id($fileId);
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if (! $file->exists() || ! $userLib->user_has_perm_on_object($user, $file->fileId, 'file', 'tiki_p_download_files')) {
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return null;
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}
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if (! self::canConvertToPDF($file->filetype)) {
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$error = 'File type not supported.';
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$message = sprintf("Failed to convert document %s (id: %s) to pdf. Error: %s", $file->filename, $fileId, $error);
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$logsLib = \TikiLib::lib('logs');
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$logsLib->add_log('File', $message);
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return null;
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}
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$sourceFile = $file->getWrapper()->getReadableFile();
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$targetFile = implode(DIRECTORY_SEPARATOR, ['temp', 'cache', $tikidomain, 'target_' . $fileId . '.pdf']);
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try {
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$convertFail = false;
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$unoconv = new UnoconvLib();
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$unoconv->convertFile($sourceFile, $targetFile);
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} catch (\Exception $e) {
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$convertFail = true;
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$message = sprintf("Failed to convert document %s (id: %s) to pdf. Error: %s", $file->filename, $fileId, $e->getMessage());
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$logsLib = \TikiLib::lib('logs');
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$previous = $e->getPrevious();
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while ($previous) {
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$logsLib->add_log('Unoconv', $previous->getMessage());
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$previous = $previous->getPrevious();
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}
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$logsLib->add_log('Unoconv', $message);
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}
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if ((empty($targetFile) && file_exists($targetFile)) || $convertFail) {
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$message = tr('Failed to convert document %0 to pdf.', $file->filename);
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$userlib = \TikiLib::lib('user');
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if ($userlib->user_has_permission($user, 'tiki_p_view_actionlog')) {
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$message .= ' ' . tr('Please check Action Log for more information.');
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} else {
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$message .= ' ' . tr('Please contact the administrator.');
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}
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$access = \TikiLib::lib('access');
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$access->display_error('', $message);
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}
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return $targetFile;
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}
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}
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