| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * @file This file is part of the PdfParser library. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * @author  Konrad Abicht <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * @date    2020-06-01 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * @author  Sébastien MALOT <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * @date    2017-01-03 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * @license LGPLv3 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * @url     <https://github.com/smalot/pdfparser> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  *  PdfParser is a pdf library written in PHP, extraction oriented. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  *  Copyright (C) 2017 - Sébastien MALOT <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  *  This program is free software: you can redistribute it and/or modify | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  *  it under the terms of the GNU Lesser General Public License as published by | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  |  *  the Free Software Foundation, either version 3 of the License, or | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  *  (at your option) any later version. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  |  *  This program is distributed in the hope that it will be useful, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  *  but WITHOUT ANY WARRANTY; without even the implied warranty of | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  *  GNU Lesser General Public License for more details. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  *  You should have received a copy of the GNU Lesser General Public License | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  *  along with this program. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  *  If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  | namespace Tests\Smalot\PdfParser\Integration\RawData; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | use Smalot\PdfParser\RawData\RawDataParser; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  | use Tests\Smalot\PdfParser\TestCase; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | class RawDataParserHelper extends RawDataParser | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      * Expose protected function "getRawObject". | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 42 |  |  |      */ | 
            
                                                                        
                            
            
                                    
            
            
                | 43 |  |  |     public function exposeGetRawObject($pdfData, $offset = 0) | 
            
                                                                        
                            
            
                                    
            
            
                | 44 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 45 |  |  |         return $this->getRawObject($pdfData, $offset); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | class RawDataParserTest extends TestCase | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |     protected function setUp() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |         parent::setUp(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |         $this->fixture = new RawDataParserHelper(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      * Tests buggy behavior of getRawObject. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |      * When PDF has corrupted xref table getRawObject may run into an infinite loop. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |      * @see https://github.com/smalot/pdfparser/issues/372 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      * @see https://github.com/smalot/pdfparser/pull/377 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |     public function testGetRawObjectIssue372() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         // The following $data content is a minimal example to trigger the infinite loop | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         $data = '<</Producer (eDkºãa˜þõ‚LÅòÕ�PïÙ��)©)>>'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |         // calling "getRawObject" via "exposeGetRawObject" would result in an infinite loop | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         // if the fix is not there. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $result = $this->fixture->exposeGetRawObject($data); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         $this->assertEquals( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |             [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |                 '<<', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |                 [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |                     ['/', 'Producer', 11], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |                     ['(', 'eDkºãa˜þõ‚LÅòÕ�PïÙ��', 52], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |                 ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |                 52, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |             ], | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |             $result | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 87 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 88 |  |  |  |