PHP实例开发源码—木翼下载系统(MyDown System).zip

<?php // -------------------------------------------------------------------------------- // PhpConcept Library - Zip Module 2.6 // -------------------------------------------------------------------------------- // License GNU/LGPL - Vincent Blavet - March 2006 // http://www.phpconcept.net // -------------------------------------------------------------------------------- // // Presentation : // PclZip is a PHP library that manage ZIP archives. // So far tests show that archives generated by PclZip are readable by // WinZip application and other tools. // // Description : // See readme.txt and http://www.phpconcept.net // // Warning : // This library and the associated files are non commercial, non professional // work. // It should not have unexpected results. However if any damage is caused by // this software the author can not be responsible. // The use of this software is at the risk of the user. // // -------------------------------------------------------------------------------- // $Id: pclzip.lib.php,v 1.47 2007/07/20 13:56:07 vblavet Exp $ // -------------------------------------------------------------------------------- // ----- Constants if (!defined('PCLZIP_READ_BLOCK_SIZE')) { define( 'PCLZIP_READ_BLOCK_SIZE', 2048 ); } // ----- File list separator // In version 1.x of PclZip, the separator for file list is a space // (which is not a very smart choice, specifically for windows paths !). // A better separator should be a comma (,). This constant gives you the // abilty to change that. // However notice that changing this value, may have impact on existing // scripts, using space separated filenames. // Recommanded values for compatibility with older versions : //define( 'PCLZIP_SEPARATOR', ' ' ); // Recommanded values for smart separation of filenames. if (!defined('PCLZIP_SEPARATOR')) { define( 'PCLZIP_SEPARATOR', ',' ); } // ----- Error configuration // 0 : PclZip Class integrated error handling // 1 : PclError external library error handling. By enabling this // you must ensure that you have included PclError library. // [2,...] : reserved for futur use if (!defined('PCLZIP_ERROR_EXTERNAL')) { define( 'PCLZIP_ERROR_EXTERNAL', 0 ); } // ----- Optional static temporary directory // By default temporary files are generated in the script current // path. // If defined : // - MUST BE terminated by a '/'. // - MUST be a valid, already created directory // Samples : // define( 'PCLZIP_TEMPORARY_DIR', '/temp/' ); // define( 'PCLZIP_TEMPORARY_DIR', 'C:/Temp/' ); if (!defined('PCLZIP_TEMPORARY_DIR')) { define( 'PCLZIP_TEMPORARY_DIR', '' ); } // -------------------------------------------------------------------------------- // ***** UNDER THIS LINE NOTHING NEEDS TO BE MODIFIED ***** // -------------------------------------------------------------------------------- // ----- Global variables $g_pclzip_version = "2.6"; // ----- Error codes // -1 : Unable to open file in binary write mode // -2 : Unable to open file in binary read mode // -3 : Invalid parameters // -4 : File does not exist // -5 : Filename is too long (max. 255) // -6 : Not a valid zip file // -7 : Invalid extracted file size // -8 : Unable to create directory // -9 : Invalid archive extension // -10 : Invalid archive format // -11 : Unable to delete file (unlink) // -12 : Unable to rename file (rename) // -13 : Invalid header checksum // -14 : Invalid archive size define( 'PCLZIP_ERR_USER_ABORTED', 2 ); define( 'PCLZIP_ERR_NO_ERROR', 0 ); define( 'PCLZIP_ERR_WRITE_OPEN_FAIL', -1 ); define( 'PCLZIP_ERR_READ_OPEN_FAIL', -2 ); define( 'PCLZIP_ERR_INVALID_PARAMETER', -3 ); define( 'PCLZIP_ERR_MISSING_FILE', -4 ); define( 'PCLZIP_ERR_FILENAME_TOO_LONG', -5 ); define( 'PCLZIP_ERR_INVALID_ZIP', -6 ); define( 'PCLZIP_ERR_BAD_EXTRACTED_FILE', -7 ); define( 'PCLZIP_ERR_DIR_CREATE_FAIL', -8 ); define( 'PCLZIP_ERR_BAD_EXTENSION', -9 ); define( 'PCLZIP_ERR_BAD_FORMAT', -10 ); define( 'PCLZIP_ERR_DELETE_FILE_FAIL', -11 ); define( 'PCLZIP_ERR_RENAME_FILE_FAIL', -12 ); define( 'PCLZIP_ERR_BAD_CHECKSUM', -13 ); define( 'PCLZIP_ERR_INVALID_ARCHIVE_ZIP', -14 ); define( 'PCLZIP_ERR_MISSING_OPTION_VALUE', -15 ); define( 'PCLZIP_ERR_INVALID_OPTION_VALUE', -16 ); define( 'PCLZIP_ERR_ALREADY_A_DIRECTORY', -17 ); define( 'PCLZIP_ERR_UNSUPPORTED_COMPRESSION', -18 ); define( 'PCLZIP_ERR_UNSUPPORTED_ENCRYPTION', -19 ); define( 'PCLZIP_ERR_INVALID_ATTRIBUTE_VALUE', -20 ); define( 'PCLZIP_ERR_DIRECTORY_RESTRICTION', -21 ); // ----- Options values define( 'PCLZIP_OPT_PATH', 77001 ); define( 'PCLZIP_OPT_ADD_PATH', 77002 ); define( 'PCLZIP_OPT_REMOVE_PATH', 77003 ); define( 'PCLZIP_OPT_REMOVE_ALL_PATH', 77004 ); define( 'PCLZIP_OPT_SET_CHMOD', 77005 ); define( 'PCLZIP_OPT_EXTRACT_AS_STRING', 77006 ); define( 'PCLZIP_OPT_NO_COMPRESSION', 77007 ); define( 'PCLZIP_OPT_BY_NAME', 77008 ); define( 'PCLZIP_OPT_BY_INDEX', 77009 ); define( 'PCLZIP_OPT_BY_EREG', 77010 ); define( 'PCLZIP_OPT_BY_PREG', 77011 ); define( 'PCLZIP_OPT_COMMENT', 77012 ); define( 'PCLZIP_OPT_ADD_COMMENT', 77013 ); define( 'PCLZIP_OPT_PREPEND_COMMENT', 77014 ); define( 'PCLZIP_OPT_EXTRACT_IN_OUTPUT', 77015 ); define( 'PCLZIP_OPT_REPLACE_NEWER', 77016 ); define( 'PCLZIP_OPT_STOP_ON_ERROR', 77017 ); // Having big trouble with crypt. Need to multiply 2 long int // which is not correctly supported by PHP ... //define( 'PCLZIP_OPT_CRYPT', 77018 ); define( 'PCLZIP_OPT_EXTRACT_DIR_RESTRICTION', 77019 ); // ----- File description attributes define( 'PCLZIP_ATT_FILE_NAME', 79001 ); define( 'PCLZIP_ATT_FILE_NEW_SHORT_NAME', 79002 ); define( 'PCLZIP_ATT_FILE_NEW_FULL_NAME', 79003 ); define( 'PCLZIP_ATT_FILE_MTIME', 79004 ); define( 'PCLZIP_ATT_FILE_CONTENT', 79005 ); define( 'PCLZIP_ATT_FILE_COMMENT', 79006 ); // ----- Call backs values define( 'PCLZIP_CB_PRE_EXTRACT', 78001 ); define( 'PCLZIP_CB_POST_EXTRACT', 78002 ); define( 'PCLZIP_CB_PRE_ADD', 78003 ); define( 'PCLZIP_CB_POST_ADD', 78004 ); /* For futur use define( 'PCLZIP_CB_PRE_LIST', 78005 ); define( 'PCLZIP_CB_POST_LIST', 78006 ); define( 'PCLZIP_CB_PRE_DELETE', 78007 ); define( 'PCLZIP_CB_POST_DELETE', 78008 ); */ // -------------------------------------------------------------------------------- // Class : PclZip // Description : // PclZip is the class that represent a Zip archive. // The public methods allow the manipulation of the archive. // Attributes : // Attributes must not be accessed directly. // Methods : // PclZip() : Object creator // create() : Creates the Zip archive // listContent() : List the content of the Zip archive // extract() : Extract the content of the archive // properties() : List the properties of the archive // -------------------------------------------------------------------------------- class PclZip { // ----- Filename of the zip file var $zipname = ''; // ----- File descriptor of the zip file var $zip_fd = 0; // ----- Internal error handling var $error_code = 1; var $error_string = ''; // ----- Current status of the magic_quotes_runtime // This value store the php configuration for magic_quotes // The class can then disable the magic_quotes and reset it after var $magic_quotes_status; // -------------------------------------------------------------------------------- // Function : PclZip() // Description : // Creates a PclZip object and set the name of the associated Zip archive // filename. // Note that no real action is take