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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @file This file is part of the PdfParser library.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author  Konrad Abicht <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @date    2020-06-01  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @author  Sébastien MALOT <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @date    2017-01-03  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @license LGPLv3  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @url     <https://github.com/smalot/pdfparser>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  PdfParser is a pdf library written in PHP, extraction oriented.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  Copyright (C) 2017 - Sébastien MALOT <[email protected]>  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  This program is free software: you can redistribute it and/or modify  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  it under the terms of the GNU Lesser General Public License as published by  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  the Free Software Foundation, either version 3 of the License, or  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  (at your option) any later version.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  This program is distributed in the hope that it will be useful,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  but WITHOUT ANY WARRANTY; without even the implied warranty of  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  GNU Lesser General Public License for more details.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  You should have received a copy of the GNU Lesser General Public License  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  along with this program.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 *  If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Tests\Smalot\PdfParser\Integration\RawData;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Smalot\PdfParser\RawData\RawDataParser;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Tests\Smalot\PdfParser\TestCase;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class RawDataParserHelper extends RawDataParser  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Expose protected function "getRawObject".  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function exposeGetRawObject($pdfData, $offset = 0) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->getRawObject($pdfData, $offset);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class RawDataParserTest extends TestCase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function setUp()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        parent::setUp();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->fixture = new RawDataParserHelper();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * Tests buggy behavior of getRawObject.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * When PDF has corrupted xref table getRawObject may run into an infinite loop.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     *  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @see https://github.com/smalot/pdfparser/issues/372  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     * @see https://github.com/smalot/pdfparser/pull/377  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function testGetRawObjectIssue372()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // The following $data content is a minimal example to trigger the infinite loop  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data = '<</Producer (eDkºãa˜þõ‚LÅòÕ�PïÙ��)©)>>';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // calling "getRawObject" via "exposeGetRawObject" would result in an infinite loop  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        // if the fix is not there.  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $result = $this->fixture->exposeGetRawObject($data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->assertEquals(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                '<<',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    ['/', 'Producer', 11],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    ['(', 'eDkºãa˜þõ‚LÅòÕ�PïÙ��', 52], | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                52  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $result  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        );  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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