[1] | 1 | <?php |
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| 2 | /** |
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| 3 | * PHPExcel |
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| 4 | * |
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| 5 | * Copyright (c) 2006 - 2014 PHPExcel |
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| 6 | * |
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| 7 | * This library is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * This library is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with this library; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | * |
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| 21 | * @category PHPExcel |
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| 22 | * @package PHPExcel |
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| 23 | * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) |
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| 24 | * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL |
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| 25 | * @version 1.8.0, 2014-03-02 |
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| 26 | */ |
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| 27 | |
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| 28 | |
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| 29 | /** PHPExcel root directory */ |
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| 30 | if (!defined('PHPEXCEL_ROOT')) { |
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| 31 | /** |
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| 32 | * @ignore |
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| 33 | */ |
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| 34 | define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../'); |
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| 35 | require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); |
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| 36 | } |
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| 37 | |
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| 38 | /** |
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| 39 | * PHPExcel_IOFactory |
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| 40 | * |
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| 41 | * @category PHPExcel |
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| 42 | * @package PHPExcel |
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| 43 | * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel) |
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| 44 | */ |
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| 45 | class PHPExcel_IOFactory |
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| 46 | { |
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| 47 | /** |
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| 48 | * Search locations |
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| 49 | * |
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| 50 | * @var array |
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| 51 | * @access private |
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| 52 | * @static |
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| 53 | */ |
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| 54 | private static $_searchLocations = array( |
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| 55 | array( 'type' => 'IWriter', 'path' => 'PHPExcel/Writer/{0}.php', 'class' => 'PHPExcel_Writer_{0}' ), |
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| 56 | array( 'type' => 'IReader', 'path' => 'PHPExcel/Reader/{0}.php', 'class' => 'PHPExcel_Reader_{0}' ) |
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| 57 | ); |
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| 58 | |
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| 59 | /** |
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| 60 | * Autoresolve classes |
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| 61 | * |
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| 62 | * @var array |
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| 63 | * @access private |
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| 64 | * @static |
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| 65 | */ |
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| 66 | private static $_autoResolveClasses = array( |
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| 67 | 'Excel2007', |
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| 68 | 'Excel5', |
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| 69 | 'Excel2003XML', |
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| 70 | 'OOCalc', |
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| 71 | 'SYLK', |
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| 72 | 'Gnumeric', |
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| 73 | 'HTML', |
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| 74 | 'CSV', |
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| 75 | ); |
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| 76 | |
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| 77 | /** |
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| 78 | * Private constructor for PHPExcel_IOFactory |
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| 79 | */ |
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| 80 | private function __construct() { } |
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| 81 | |
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| 82 | /** |
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| 83 | * Get search locations |
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| 84 | * |
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| 85 | * @static |
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| 86 | * @access public |
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| 87 | * @return array |
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| 88 | */ |
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| 89 | public static function getSearchLocations() { |
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| 90 | return self::$_searchLocations; |
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| 91 | } // function getSearchLocations() |
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| 92 | |
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| 93 | /** |
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| 94 | * Set search locations |
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| 95 | * |
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| 96 | * @static |
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| 97 | * @access public |
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| 98 | * @param array $value |
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| 99 | * @throws PHPExcel_Reader_Exception |
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| 100 | */ |
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| 101 | public static function setSearchLocations($value) { |
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| 102 | if (is_array($value)) { |
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| 103 | self::$_searchLocations = $value; |
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| 104 | } else { |
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| 105 | throw new PHPExcel_Reader_Exception('Invalid parameter passed.'); |
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| 106 | } |
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| 107 | } // function setSearchLocations() |
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| 108 | |
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| 109 | /** |
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| 110 | * Add search location |
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| 111 | * |
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| 112 | * @static |
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| 113 | * @access public |
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| 114 | * @param string $type Example: IWriter |
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| 115 | * @param string $location Example: PHPExcel/Writer/{0}.php |
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| 116 | * @param string $classname Example: PHPExcel_Writer_{0} |
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| 117 | */ |
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| 118 | public static function addSearchLocation($type = '', $location = '', $classname = '') { |
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| 119 | self::$_searchLocations[] = array( 'type' => $type, 'path' => $location, 'class' => $classname ); |
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| 120 | } // function addSearchLocation() |
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| 121 | |
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| 122 | /** |
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| 123 | * Create PHPExcel_Writer_IWriter |
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| 124 | * |
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| 125 | * @static |
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| 126 | * @access public |
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| 127 | * @param PHPExcel $phpExcel |
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| 128 | * @param string $writerType Example: Excel2007 |
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| 129 | * @return PHPExcel_Writer_IWriter |
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| 130 | * @throws PHPExcel_Reader_Exception |
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| 131 | */ |
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| 132 | public static function createWriter(PHPExcel $phpExcel, $writerType = '') { |
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| 133 | // Search type |
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| 134 | $searchType = 'IWriter'; |
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| 135 | |
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| 136 | // Include class |
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| 137 | foreach (self::$_searchLocations as $searchLocation) { |
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| 138 | if ($searchLocation['type'] == $searchType) { |
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| 139 | $className = str_replace('{0}', $writerType, $searchLocation['class']); |
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| 140 | |
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| 141 | $instance = new $className($phpExcel); |
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| 142 | if ($instance !== NULL) { |
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| 143 | return $instance; |
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| 144 | } |
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| 145 | } |
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| 146 | } |
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| 147 | |
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| 148 | // Nothing found... |
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| 149 | throw new PHPExcel_Reader_Exception("No $searchType found for type $writerType"); |
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| 150 | } // function createWriter() |
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| 151 | |
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| 152 | /** |
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| 153 | * Create PHPExcel_Reader_IReader |
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| 154 | * |
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| 155 | * @static |
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| 156 | * @access public |
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| 157 | * @param string $readerType Example: Excel2007 |
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| 158 | * @return PHPExcel_Reader_IReader |
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| 159 | * @throws PHPExcel_Reader_Exception |
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| 160 | */ |
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| 161 | public static function createReader($readerType = '') { |
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| 162 | // Search type |
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| 163 | $searchType = 'IReader'; |
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| 164 | |
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| 165 | // Include class |
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| 166 | foreach (self::$_searchLocations as $searchLocation) { |
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| 167 | if ($searchLocation['type'] == $searchType) { |
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| 168 | $className = str_replace('{0}', $readerType, $searchLocation['class']); |
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| 169 | |
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| 170 | $instance = new $className(); |
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| 171 | if ($instance !== NULL) { |
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| 172 | return $instance; |
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| 173 | } |
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| 174 | } |
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| 175 | } |
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| 176 | |
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| 177 | // Nothing found... |
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| 178 | throw new PHPExcel_Reader_Exception("No $searchType found for type $readerType"); |
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| 179 | } // function createReader() |
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| 180 | |
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| 181 | /** |
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| 182 | * Loads PHPExcel from file using automatic PHPExcel_Reader_IReader resolution |
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| 183 | * |
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| 184 | * @static |
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| 185 | * @access public |
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| 186 | * @param string $pFilename The name of the spreadsheet file |
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| 187 | * @return PHPExcel |
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| 188 | * @throws PHPExcel_Reader_Exception |
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| 189 | */ |
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| 190 | public static function load($pFilename) { |
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| 191 | $reader = self::createReaderForFile($pFilename); |
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| 192 | return $reader->load($pFilename); |
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| 193 | } // function load() |
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| 194 | |
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| 195 | /** |
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| 196 | * Identify file type using automatic PHPExcel_Reader_IReader resolution |
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| 197 | * |
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| 198 | * @static |
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| 199 | * @access public |
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| 200 | * @param string $pFilename The name of the spreadsheet file to identify |
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| 201 | * @return string |
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| 202 | * @throws PHPExcel_Reader_Exception |
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| 203 | */ |
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| 204 | public static function identify($pFilename) { |
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| 205 | $reader = self::createReaderForFile($pFilename); |
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| 206 | $className = get_class($reader); |
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| 207 | $classType = explode('_',$className); |
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| 208 | unset($reader); |
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| 209 | return array_pop($classType); |
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| 210 | } // function identify() |
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| 211 | |
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| 212 | /** |
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| 213 | * Create PHPExcel_Reader_IReader for file using automatic PHPExcel_Reader_IReader resolution |
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| 214 | * |
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| 215 | * @static |
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| 216 | * @access public |
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| 217 | * @param string $pFilename The name of the spreadsheet file |
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| 218 | * @return PHPExcel_Reader_IReader |
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| 219 | * @throws PHPExcel_Reader_Exception |
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| 220 | */ |
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| 221 | public static function createReaderForFile($pFilename) { |
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| 222 | |
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| 223 | // First, lucky guess by inspecting file extension |
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| 224 | $pathinfo = pathinfo($pFilename); |
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| 225 | |
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| 226 | $extensionType = NULL; |
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| 227 | if (isset($pathinfo['extension'])) { |
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| 228 | switch (strtolower($pathinfo['extension'])) { |
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| 229 | case 'xlsx': // Excel (OfficeOpenXML) Spreadsheet |
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| 230 | case 'xlsm': // Excel (OfficeOpenXML) Macro Spreadsheet (macros will be discarded) |
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| 231 | case 'xltx': // Excel (OfficeOpenXML) Template |
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| 232 | case 'xltm': // Excel (OfficeOpenXML) Macro Template (macros will be discarded) |
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| 233 | $extensionType = 'Excel2007'; |
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| 234 | break; |
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| 235 | case 'xls': // Excel (BIFF) Spreadsheet |
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| 236 | case 'xlt': // Excel (BIFF) Template |
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| 237 | $extensionType = 'Excel5'; |
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| 238 | break; |
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| 239 | case 'ods': // Open/Libre Offic Calc |
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| 240 | case 'ots': // Open/Libre Offic Calc Template |
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| 241 | $extensionType = 'OOCalc'; |
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| 242 | break; |
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| 243 | case 'slk': |
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| 244 | $extensionType = 'SYLK'; |
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| 245 | break; |
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| 246 | case 'xml': // Excel 2003 SpreadSheetML |
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| 247 | $extensionType = 'Excel2003XML'; |
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| 248 | break; |
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| 249 | case 'gnumeric': |
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| 250 | $extensionType = 'Gnumeric'; |
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| 251 | break; |
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| 252 | case 'htm': |
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| 253 | case 'html': |
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| 254 | $extensionType = 'HTML'; |
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| 255 | break; |
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| 256 | case 'csv': |
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| 257 | // Do nothing |
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| 258 | // We must not try to use CSV reader since it loads |
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| 259 | // all files including Excel files etc. |
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| 260 | break; |
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| 261 | default: |
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| 262 | break; |
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| 263 | } |
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| 264 | |
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| 265 | if ($extensionType !== NULL) { |
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| 266 | $reader = self::createReader($extensionType); |
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| 267 | // Let's see if we are lucky |
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| 268 | if (isset($reader) && $reader->canRead($pFilename)) { |
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| 269 | return $reader; |
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| 270 | } |
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| 271 | } |
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| 272 | } |
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| 273 | |
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| 274 | // If we reach here then "lucky guess" didn't give any result |
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| 275 | // Try walking through all the options in self::$_autoResolveClasses |
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| 276 | foreach (self::$_autoResolveClasses as $autoResolveClass) { |
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| 277 | // Ignore our original guess, we know that won't work |
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| 278 | if ($autoResolveClass !== $extensionType) { |
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| 279 | $reader = self::createReader($autoResolveClass); |
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| 280 | if ($reader->canRead($pFilename)) { |
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| 281 | return $reader; |
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| 282 | } |
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| 283 | } |
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| 284 | } |
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| 285 | |
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| 286 | throw new PHPExcel_Reader_Exception('Unable to identify a reader for this file'); |
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| 287 | } // function createReaderForFile() |
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| 288 | } |
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