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<?php |
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/** |
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* This file is part of PHPPresentation - A pure PHP library for reading and writing |
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* presentations documents. |
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* |
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* PHPPresentation is free software distributed under the terms of the GNU Lesser |
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* General Public License version 3 as published by the Free Software Foundation. |
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* |
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* For the full copyright and license information, please read the LICENSE |
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* file that was distributed with this source code. For the full list of |
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* contributors, visit https://github.com/PHPOffice/PHPPresentation/contributors. |
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* |
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* @link https://github.com/PHPOffice/PHPPresentation |
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* @copyright 2009-2015 PHPPresentation contributors |
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* @license http://www.gnu.org/licenses/lgpl.txt LGPL version 3 |
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*/ |
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namespace PhpOffice\PhpPresentation\Reader; |
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use PhpOffice\Common\File; |
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use PhpOffice\PhpPresentation\Shape\Drawing\AbstractDrawingAdapter; |
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/** |
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* Serialized format reader |
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*/ |
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class Serialized implements ReaderInterface |
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{ |
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/** |
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* Can the current \PhpOffice\PhpPresentation\Reader\ReaderInterface read the file? |
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* |
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* @param string $pFilename |
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* @throws \Exception |
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* @return boolean |
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*/ |
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public function canRead($pFilename) |
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{ |
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return $this->fileSupportsUnserializePhpPresentation($pFilename); |
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} |
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/** |
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* Does a file support UnserializePhpPresentation ? |
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* |
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* @param string $pFilename |
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* @throws \Exception |
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* @return boolean |
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*/ |
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public function fileSupportsUnserializePhpPresentation($pFilename = '') |
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{ |
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// Check if file exists |
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if (!file_exists($pFilename)) { |
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throw new \Exception("Could not open " . $pFilename . " for reading! File does not exist."); |
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} |
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// File exists, does it contain PhpPresentation.xml? |
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return File::fileExists("zip://$pFilename#PhpPresentation.xml"); |
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} |
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/** |
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* Loads PhpPresentation Serialized file |
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* |
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* @param string $pFilename |
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* @return \PhpOffice\PhpPresentation\PhpPresentation |
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* @throws \Exception |
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*/ |
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public function load($pFilename) |
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{ |
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// Check if file exists |
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if (!file_exists($pFilename)) { |
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throw new \Exception("Could not open " . $pFilename . " for reading! File does not exist."); |
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} |
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// Unserialize... First make sure the file supports it! |
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if (!$this->fileSupportsUnserializePhpPresentation($pFilename)) { |
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throw new \Exception("Invalid file format for PhpOffice\PhpPresentation\Reader\Serialized: " . $pFilename . "."); |
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} |
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return $this->loadSerialized($pFilename); |
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} |
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/** |
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* Load PhpPresentation Serialized file |
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* |
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* @param string $pFilename |
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* @return \PhpOffice\PhpPresentation\PhpPresentation |
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*/ |
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private function loadSerialized($pFilename) |
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{ |
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$oArchive = new \ZipArchive(); |
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if ($oArchive->open($pFilename) === true) { |
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$xmlContent = $oArchive->getFromName('PhpPresentation.xml'); |
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if (!empty($xmlContent)) { |
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$xmlData = simplexml_load_string($xmlContent); |
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$file = unserialize(base64_decode((string) $xmlData->data)); |
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// Update media links |
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for ($i = 0; $i < $file->getSlideCount(); ++$i) { |
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for ($j = 0; $j < $file->getSlide($i)->getShapeCollection()->count(); ++$j) { |
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if ($file->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof AbstractDrawingAdapter) { |
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$imgTemp = $file->getSlide($i)->getShapeCollection()->offsetGet($j); |
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$imgTemp->setPath('zip://' . $pFilename . '#media/' . $imgTemp->getImageIndex() . '/' . pathinfo($imgTemp->getPath(), PATHINFO_BASENAME), false); |
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} |
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} |
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} |
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$oArchive->close(); |
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return $file; |
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} |
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} |
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return null; |
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} |
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} |
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PHPOffice /
PHPPresentation
