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<?php /** PHPExcel root directory */ if (!defined('PHPEXCEL_ROOT')) { /** * @ignore */ define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../'); require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); } /** * PHPExcel_IOFactory * * Copyright (c) 2006 - 2015 PHPExcel * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * @category PHPExcel * @package PHPExcel * @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel) * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL * @version ##VERSION##, ##DATE## */ class PHPExcel_IOFactory { /** * Search locations * * @var array * @access private * @static */ private static $searchLocations = array( array( 'type' => 'IWriter', 'path' => 'PHPExcel/Writer/{0}.php', 'class' => 'PHPExcel_Writer_{0}' ), array( 'type' => 'IReader', 'path' => 'PHPExcel/Reader/{0}.php', 'class' => 'PHPExcel_Reader_{0}' ) ); /** * Autoresolve classes * * @var array * @access private * @static */ private static $autoResolveClasses = array( 'Excel2007', 'Excel5', 'Excel2003XML', 'OOCalc', 'SYLK', 'Gnumeric', 'HTML', 'CSV', ); /** * Private constructor for PHPExcel_IOFactory */ private function __construct() { } /** * Get search locations * * @static * @access public * @return array */ public static function getSearchLocations() { return self::$searchLocations; } /** * Set search locations * * @static * @access public * @param array $value * @throws PHPExcel_Reader_Exception */ public static function setSearchLocations($value) { if (is_array($value)) { self::$searchLocations = $value; } else { throw new PHPExcel_Reader_Exception('Invalid parameter passed.'); } } /** * Add search location * * @static * @access public * @param string $type Example: IWriter * @param string $location Example: PHPExcel/Writer/{0}.php * @param string $classname Example: PHPExcel_Writer_{0} */ public static function addSearchLocation($type = '', $location = '', $classname = '') { self::$searchLocations[] = array( 'type' => $type, 'path' => $location, 'class' => $classname ); } /** * Create PHPExcel_Writer_IWriter * * @static * @access public * @param PHPExcel $phpExcel * @param string $writerType Example: Excel2007 * @return PHPExcel_Writer_IWriter * @throws PHPExcel_Reader_Exception */ public static function createWriter(PHPExcel $phpExcel, $writerType = '') { // Search type $searchType = 'IWriter'; // Include class foreach (self::$searchLocations as $searchLocation) { if ($searchLocation['type'] == $searchType) { $className = str_replace('{0}', $writerType, $searchLocation['class']); $instance = new $className($phpExcel); if ($instance !== null) { return $instance; } } } // Nothing found... throw new PHPExcel_Reader_Exception("No $searchType found for type $writerType"); } /** * Create PHPExcel_Reader_IReader * * @static * @access public * @param string $readerType Example: Excel2007 * @return PHPExcel_Reader_IReader * @throws PHPExcel_Reader_Exception */ public static function createReader($readerType = '') { // Search type $searchType = 'IReader'; // Include class foreach (self::$searchLocations as $searchLocation) { if ($searchLocation['type'] == $searchType) { $className = str_replace('{0}', $readerType, $searchLocation['class']); $instance = new $className(); if ($instance !== null) { return $instance; } } } // Nothing found... throw new PHPExcel_Reader_Exception("No $searchType found for type $readerType"); } /** * Loads PHPExcel from file using automatic PHPExcel_Reader_IReader resolution * * @static * @access public * @param string $pFilename The name of the spreadsheet file * @return PHPExcel * @throws PHPExcel_Reader_Exception */ public static function load($pFilename) { $reader = self::createReaderForFile($pFilename); return $reader->load($pFilename); } /** * Identify file type using automatic PHPExcel_Reader_IReader resolution * * @static * @access public * @param string $pFilename The name of the spreadsheet file to identify * @return string * @throws PHPExcel_Reader_Exception */ public static function identify($pFilename) { $reader = self::createReaderForFile($pFilename); $className = get_class($reader); $classType = explode('_', $className); unset($reader); return array_pop($classType); } /** * Create PHPExcel_Reader_IReader for file using automatic PHPExcel_Reader_IReader resolution * * @static * @access public * @param string $pFilename The name of the spreadsheet file * @return PHPExcel_Reader_IReader * @throws PHPExcel_Reader_Exception */ public static function createReaderForFile($pFilename) { // First, lucky guess by inspecting file extension $pathinfo = pathinfo($pFilename); $extensionType = null; if (isset($pathinfo['extension'])) { switch (strtolower($pathinfo['extension'])) { case 'xlsx': // Excel (OfficeOpenXML) Spreadsheet case 'xlsm': // Excel (OfficeOpenXML) Macro Spreadsheet (macros will be discarded) case 'xltx': // Excel (OfficeOpenXML) Template case 'xltm': // Excel (OfficeOpenXML) Macro Template (macros will be discarded) $extensionType = 'Excel2007'; break; case 'xls': // Excel (BIFF) Spreadsheet case 'xlt': // Excel (BIFF) Template $extensionType = 'Excel5'; break; case 'ods': // Open/Libre Offic Calc case 'ots': // Open/Libre Offic Calc Template $extensionType = 'OOCalc'; break; case 'slk': $extensionType = 'SYLK'; break; case 'xml': // Excel 2003 SpreadSheetML $extensionType = 'Excel2003XML'; break; case 'gnumeric': $extensionType = 'Gnumeric'; break; case 'htm': case 'html': $extensionType = 'HTML'; break; case 'csv': // Do nothing // We must not try to use CSV reader since it loads // all files including Excel files etc. break; default: break; } if ($extensionType !== null) { $reader = self::createReader($extensionType); // Let's see if we are lucky if (isset($reader) && $reader->canRead($pFilename)) { return $reader; } } } // If we reach here then "lucky guess" didn't give any result // Try walking through all the options in self::$autoResolveClasses foreach (self::$autoResolveClasses as $autoResolveClass) { // Ignore our original guess, we know that won't work if ($autoResolveClass !== $extensionType) { $reader = self::createReader($autoResolveClass); if ($reader->canRead($pFilename)) { return $reader; } } } throw new PHPExcel_Reader_Exception('Unable to identify a reader for this file'); } }
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