You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
<?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Pdf * @subpackage FileParser * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id$ */
/** Zend_Pdf_FileParserDataSource */ // require_once 'Zend/Pdf/FileParserDataSource.php';
/** * Concrete subclass of {@link Zend_Pdf_FileParserDataSource} that provides an * interface to filesystem objects. * * Note that this class cannot be used for other sources that may be supported * by {@link fopen()} (through URL wrappers). It may be used for local * filesystem objects only. * * @package Zend_Pdf * @subpackage FileParser * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Pdf_FileParserDataSource_File extends Zend_Pdf_FileParserDataSource { /**** Instance Variables ****/
/** * Fully-qualified path to the file. * @var string */ protected $_filePath = '';
/** * File resource handle . * @var resource */ protected $_fileResource = null;
/**** Public Interface ****/
/* Concrete Class Implementation */
/** * Object constructor. * * Validates the path to the file, ensures that it is readable, then opens * it for reading. * * Throws an exception if the file is missing or cannot be opened. * * @param string $filePath Fully-qualified path to the file. * @throws Zend_Pdf_Exception */ public function __construct($filePath) { if (! (is_file($filePath) || is_link($filePath))) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception("Invalid file path: $filePath", Zend_Pdf_Exception::BAD_FILE_PATH); } if (! is_readable($filePath)) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception("File is not readable: $filePath", Zend_Pdf_Exception::NOT_READABLE); } if (($this->_size = @filesize($filePath)) === false) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception("Error while obtaining file size: $filePath", Zend_Pdf_Exception::CANT_GET_FILE_SIZE); } if (($this->_fileResource = @fopen($filePath, 'rb')) === false) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception("Cannot open file for reading: $filePath", Zend_Pdf_Exception::CANT_OPEN_FILE); } $this->_filePath = $filePath; }
/** * Object destructor. * * Closes the file if it had been successfully opened. */ public function __destruct() { if (is_resource($this->_fileResource)) { @fclose($this->_fileResource); } }
/** * Returns the specified number of raw bytes from the file at the byte * offset of the current read position. * * Advances the read position by the number of bytes read. * * Throws an exception if an error was encountered while reading the file or * if there is insufficient data to completely fulfill the request. * * @param integer $byteCount Number of bytes to read. * @return string * @throws Zend_Pdf_Exception */ public function readBytes($byteCount) { $bytes = @fread($this->_fileResource, $byteCount); if ($bytes === false) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Unexpected error while reading file', Zend_Pdf_Exception::ERROR_DURING_READ); } if (strlen($bytes) != $byteCount) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception("Insufficient data to read $byteCount bytes", Zend_Pdf_Exception::INSUFFICIENT_DATA); } $this->_offset += $byteCount; return $bytes; }
/** * Returns the entire contents of the file as a string. * * Preserves the current file seek position. * * @return string */ public function readAllBytes() { return file_get_contents($this->_filePath); }
/* Object Magic Methods */
/** * Returns the full filesystem path of the file. * * @return string */ public function __toString() { return $this->_filePath; }
/* Primitive Methods */
/** * Seeks the file read position to the specified byte offset. * * Throws an exception if the file pointer cannot be moved or if it is * moved beyond EOF (end of file). * * @param integer $offset Destination byte offset. * @throws Zend_Pdf_Exception */ public function moveToOffset($offset) { if ($this->_offset == $offset) { return; // Not moving; do nothing.
} parent::moveToOffset($offset); $result = @fseek($this->_fileResource, $offset, SEEK_SET); if ($result !== 0) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Error while setting new file position', Zend_Pdf_Exception::CANT_SET_FILE_POSITION); } if (feof($this->_fileResource)) { // require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Moved beyond the end of the file', Zend_Pdf_Exception::MOVE_BEYOND_END_OF_FILE); } }
}
|