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@miguel876
miguel876 committed Jan 5, 2018
1 parent de5d5ad commit 823a7d3
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1,153 changes: 1,153 additions & 0 deletions Classes/PHPExcel.php
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81 changes: 81 additions & 0 deletions Classes/PHPExcel/Autoloader.php
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<?php

PHPExcel_Autoloader::register();
// As we always try to run the autoloader before anything else, we can use it to do a few
// simple checks and initialisations
//PHPExcel_Shared_ZipStreamWrapper::register();
// check mbstring.func_overload
if (ini_get('mbstring.func_overload') & 2) {
throw new PHPExcel_Exception('Multibyte function overloading in PHP must be disabled for string functions (2).');
}
PHPExcel_Shared_String::buildCharacterSets();

/**
* PHPExcel
*
* 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_Autoloader
{
/**
* Register the Autoloader with SPL
*
*/
public static function register()
{
if (function_exists('__autoload')) {
// Register any existing autoloader function with SPL, so we don't get any clashes
spl_autoload_register('__autoload');
}
// Register ourselves with SPL
if (version_compare(PHP_VERSION, '5.3.0') >= 0) {
return spl_autoload_register(array('PHPExcel_Autoloader', 'load'), true, true);
} else {
return spl_autoload_register(array('PHPExcel_Autoloader', 'load'));
}
}

/**
* Autoload a class identified by name
*
* @param string $pClassName Name of the object to load
*/
public static function load($pClassName)
{
if ((class_exists($pClassName, false)) || (strpos($pClassName, 'PHPExcel') !== 0)) {
// Either already loaded, or not a PHPExcel class request
return false;
}

$pClassFilePath = PHPEXCEL_ROOT .
str_replace('_', DIRECTORY_SEPARATOR, $pClassName) .
'.php';

if ((file_exists($pClassFilePath) === false) || (is_readable($pClassFilePath) === false)) {
// Can't load
return false;
}

require($pClassFilePath);
}
}
290 changes: 290 additions & 0 deletions Classes/PHPExcel/CachedObjectStorage/APC.php
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<?php

/**
* PHPExcel_CachedObjectStorage_APC
*
* 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_CachedObjectStorage
* @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_CachedObjectStorage_APC extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache
{
/**
* Prefix used to uniquely identify cache data for this worksheet
*
* @access private
* @var string
*/
private $cachePrefix = null;

/**
* Cache timeout
*
* @access private
* @var integer
*/
private $cacheTime = 600;

/**
* Store cell data in cache for the current cell object if it's "dirty",
* and the 'nullify' the current cell object
*
* @access private
* @return void
* @throws PHPExcel_Exception
*/
protected function storeData()
{
if ($this->currentCellIsDirty && !empty($this->currentObjectID)) {
$this->currentObject->detach();

if (!apc_store(
$this->cachePrefix . $this->currentObjectID . '.cache',
serialize($this->currentObject),
$this->cacheTime
)) {
$this->__destruct();
throw new PHPExcel_Exception('Failed to store cell ' . $this->currentObjectID . ' in APC');
}
$this->currentCellIsDirty = false;
}
$this->currentObjectID = $this->currentObject = null;
}

/**
* Add or Update a cell in cache identified by coordinate address
*
* @access public
* @param string $pCoord Coordinate address of the cell to update
* @param PHPExcel_Cell $cell Cell to update
* @return PHPExcel_Cell
* @throws PHPExcel_Exception
*/
public function addCacheData($pCoord, PHPExcel_Cell $cell)
{
if (($pCoord !== $this->currentObjectID) && ($this->currentObjectID !== null)) {
$this->storeData();
}
$this->cellCache[$pCoord] = true;

$this->currentObjectID = $pCoord;
$this->currentObject = $cell;
$this->currentCellIsDirty = true;

return $cell;
}

/**
* Is a value set in the current PHPExcel_CachedObjectStorage_ICache for an indexed cell?
*
* @access public
* @param string $pCoord Coordinate address of the cell to check
* @throws PHPExcel_Exception
* @return boolean
*/
public function isDataSet($pCoord)
{
// Check if the requested entry is the current object, or exists in the cache
if (parent::isDataSet($pCoord)) {
if ($this->currentObjectID == $pCoord) {
return true;
}
// Check if the requested entry still exists in apc
$success = apc_fetch($this->cachePrefix.$pCoord.'.cache');
if ($success === false) {
// Entry no longer exists in APC, so clear it from the cache array
parent::deleteCacheData($pCoord);
throw new PHPExcel_Exception('Cell entry '.$pCoord.' no longer exists in APC cache');
}
return true;
}
return false;
}

/**
* Get cell at a specific coordinate
*
* @access public
* @param string $pCoord Coordinate of the cell
* @throws PHPExcel_Exception
* @return PHPExcel_Cell Cell that was found, or null if not found
*/
public function getCacheData($pCoord)
{
if ($pCoord === $this->currentObjectID) {
return $this->currentObject;
}
$this->storeData();

// Check if the entry that has been requested actually exists
if (parent::isDataSet($pCoord)) {
$obj = apc_fetch($this->cachePrefix . $pCoord . '.cache');
if ($obj === false) {
// Entry no longer exists in APC, so clear it from the cache array
parent::deleteCacheData($pCoord);
throw new PHPExcel_Exception('Cell entry '.$pCoord.' no longer exists in APC cache');
}
} else {
// Return null if requested entry doesn't exist in cache
return null;
}

// Set current entry to the requested entry
$this->currentObjectID = $pCoord;
$this->currentObject = unserialize($obj);
// Re-attach this as the cell's parent
$this->currentObject->attach($this);

// Return requested entry
return $this->currentObject;
}

/**
* Get a list of all cell addresses currently held in cache
*
* @return string[]
*/
public function getCellList()
{
if ($this->currentObjectID !== null) {
$this->storeData();
}

return parent::getCellList();
}

/**
* Delete a cell in cache identified by coordinate address
*
* @access public
* @param string $pCoord Coordinate address of the cell to delete
* @throws PHPExcel_Exception
*/
public function deleteCacheData($pCoord)
{
// Delete the entry from APC
apc_delete($this->cachePrefix.$pCoord.'.cache');

// Delete the entry from our cell address array
parent::deleteCacheData($pCoord);
}

/**
* Clone the cell collection
*
* @access public
* @param PHPExcel_Worksheet $parent The new worksheet
* @throws PHPExcel_Exception
* @return void
*/
public function copyCellCollection(PHPExcel_Worksheet $parent)
{
parent::copyCellCollection($parent);
// Get a new id for the new file name
$baseUnique = $this->getUniqueID();
$newCachePrefix = substr(md5($baseUnique), 0, 8) . '.';
$cacheList = $this->getCellList();
foreach ($cacheList as $cellID) {
if ($cellID != $this->currentObjectID) {
$obj = apc_fetch($this->cachePrefix . $cellID . '.cache');
if ($obj === false) {
// Entry no longer exists in APC, so clear it from the cache array
parent::deleteCacheData($cellID);
throw new PHPExcel_Exception('Cell entry ' . $cellID . ' no longer exists in APC');
}
if (!apc_store($newCachePrefix . $cellID . '.cache', $obj, $this->cacheTime)) {
$this->__destruct();
throw new PHPExcel_Exception('Failed to store cell ' . $cellID . ' in APC');
}
}
}
$this->cachePrefix = $newCachePrefix;
}

/**
* Clear the cell collection and disconnect from our parent
*
* @return void
*/
public function unsetWorksheetCells()
{
if ($this->currentObject !== null) {
$this->currentObject->detach();
$this->currentObject = $this->currentObjectID = null;
}

// Flush the APC cache
$this->__destruct();

$this->cellCache = array();

// detach ourself from the worksheet, so that it can then delete this object successfully
$this->parent = null;
}

/**
* Initialise this new cell collection
*
* @param PHPExcel_Worksheet $parent The worksheet for this cell collection
* @param array of mixed $arguments Additional initialisation arguments
*/
public function __construct(PHPExcel_Worksheet $parent, $arguments)
{
$cacheTime = (isset($arguments['cacheTime'])) ? $arguments['cacheTime'] : 600;

if ($this->cachePrefix === null) {
$baseUnique = $this->getUniqueID();
$this->cachePrefix = substr(md5($baseUnique), 0, 8) . '.';
$this->cacheTime = $cacheTime;

parent::__construct($parent);
}
}

/**
* Destroy this cell collection
*/
public function __destruct()
{
$cacheList = $this->getCellList();
foreach ($cacheList as $cellID) {
apc_delete($this->cachePrefix . $cellID . '.cache');
}
}

/**
* Identify whether the caching method is currently available
* Some methods are dependent on the availability of certain extensions being enabled in the PHP build
*
* @return boolean
*/
public static function cacheMethodIsAvailable()
{
if (!function_exists('apc_store')) {
return false;
}
if (apc_sma_info() === false) {
return false;
}

return true;
}
}
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