corpus_parole: comparison cms/drupal/modules/system/system.tar.inc

equal deleted inserted replaced

-:07239de796bb
+:e756a8c72c3d
+<?php
+/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
+/**
+* File::CSV
+*
+* PHP versions 4 and 5
+*
+* Copyright (c) 1997-2008,
+* Vincent Blavet <vincent@phpconcept.net>
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*
+*     * Redistributions of source code must retain the above copyright notice,
+*       this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+* @category  File_Formats
+* @package   Archive_Tar
+* @author    Vincent Blavet <vincent@phpconcept.net>
+* @copyright 1997-2010 The Authors
+* @license   http://www.opensource.org/licenses/bsd-license.php New BSD License
+* @version   CVS: $Id$
+* @link      http://pear.php.net/package/Archive_Tar
+*/
+/**
+* Note on Drupal 8 porting.
+* This file origin is Tar.php, release 1.4.0 (stable) with some code
+* from PEAR.php, release 1.9.5 (stable) both at http://pear.php.net.
+* To simplify future porting from pear of this file, you should not
+* do cosmetic or other non significant changes to this file.
+* The following changes have been done:
+*  Added namespace Drupal\Core\Archiver.
+*  Removed require_once 'PEAR.php'.
+*  Added defintion of OS_WINDOWS taken from PEAR.php.
+*  Renamed class to ArchiveTar.
+*  Removed extends PEAR from class.
+*  Removed call parent:: __construct().
+*  Changed PEAR::loadExtension($extname) to this->loadExtension($extname).
+*  Added function loadExtension() taken from PEAR.php.
+*  Changed all calls of unlink() to drupal_unlink().
+*  Changed $this->error_object = &$this->raiseError($p_message)
+*  to throw new \Exception($p_message).
+*/
+/**
+* Note on Drupal 7 backporting from Drupal 8.
+* File origin is core/lib/Drupal/Core/Archiver/ArchiveTar.php from Drupal 8.
+* The following changes have been done:
+*  Removed namespace Drupal\Core\Archiver.
+*  Renamed class to Archive_Tar.
+*  Changed \Exception to Exception.
+*/
+// Drupal removal require_once 'PEAR.php'.
+// Drupal addition OS_WINDOWS as defined in PEAR.php.
+if (substr(PHP_OS, 0, 3) == 'WIN') {
+define('OS_WINDOWS', true);
+} else {
+define('OS_WINDOWS', false);
+}
+define('ARCHIVE_TAR_ATT_SEPARATOR', 90001);
+define('ARCHIVE_TAR_END_BLOCK', pack("a512", ''));
+if (!function_exists('gzopen') && function_exists('gzopen64')) {
+function gzopen($filename, $mode, $use_include_path = 0)
+{
+return gzopen64($filename, $mode, $use_include_path);
+}
+}
+if (!function_exists('gztell') && function_exists('gztell64')) {
+function gztell($zp)
+{
+return gztell64($zp);
+}
+}
+if (!function_exists('gzseek') && function_exists('gzseek64')) {
+function gzseek($zp, $offset, $whence = SEEK_SET)
+{
+return gzseek64($zp, $offset, $whence);
+}
+}
+/**
+* Creates a (compressed) Tar archive
+*
+* @package Archive_Tar
+* @author  Vincent Blavet <vincent@phpconcept.net>
+* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+* @version $Revision$
+*/
+// Drupal change class Archive_Tar extends PEAR.
+class Archive_Tar
+{
+/**
+* @var string Name of the Tar
+*/
+public $_tarname = '';
+/**
+* @var boolean if true, the Tar file will be gzipped
+*/
+public $_compress = false;
+/**
+* @var string Type of compression : 'none', 'gz', 'bz2' or 'lzma2'
+*/
+public $_compress_type = 'none';
+/**
+* @var string Explode separator
+*/
+public $_separator = ' ';
+/**
+* @var file descriptor
+*/
+public $_file = 0;
+/**
+* @var string Local Tar name of a remote Tar (http:// or ftp://)
+*/
+public $_temp_tarname = '';
+/**
+* @var string regular expression for ignoring files or directories
+*/
+public $_ignore_regexp = '';
+/**
+* @var object PEAR_Error object
+*/
+public $error_object = null;
+/**
+* Archive_Tar Class constructor. This flavour of the constructor only
+* declare a new Archive_Tar object, identifying it by the name of the
+* tar file.
+* If the compress argument is set the tar will be read or created as a
+* gzip or bz2 compressed TAR file.
+*
+* @param string $p_tarname The name of the tar archive to create
+* @param string $p_compress can be null, 'gz', 'bz2' or 'lzma2'. This
+*               parameter indicates if gzip, bz2 or lzma2 compression
+*               is required.  For compatibility reason the
+*               boolean value 'true' means 'gz'.
+*
+* @return bool
+*/
+public function __construct($p_tarname, $p_compress = null)
+{
+// Drupal removal parent::__construct().
+$this->_compress = false;
+$this->_compress_type = 'none';
+if (($p_compress === null) || ($p_compress == '')) {
+if (@file_exists($p_tarname)) {
+if ($fp = @fopen($p_tarname, "rb")) {
+// look for gzip magic cookie
+$data = fread($fp, 2);
+fclose($fp);
+if ($data == "\37\213") {
+$this->_compress = true;
+$this->_compress_type = 'gz';
+// No sure it's enought for a magic code ....
+} elseif ($data == "BZ") {
+$this->_compress = true;
+$this->_compress_type = 'bz2';
+} elseif (file_get_contents($p_tarname, false, null, 1, 4) == '7zXZ') {
+$this->_compress = true;
+$this->_compress_type = 'lzma2';
+}
+}
+} else {
+// probably a remote file or some file accessible
+// through a stream interface
+if (substr($p_tarname, -2) == 'gz') {
+$this->_compress = true;
+$this->_compress_type = 'gz';
+} elseif ((substr($p_tarname, -3) == 'bz2') ||
+(substr($p_tarname, -2) == 'bz')
+) {
+$this->_compress = true;
+$this->_compress_type = 'bz2';
+} else {
+if (substr($p_tarname, -2) == 'xz') {
+$this->_compress = true;
+$this->_compress_type = 'lzma2';
+}
+}
+}
+} else {
+if (($p_compress === true) || ($p_compress == 'gz')) {
+$this->_compress = true;
+$this->_compress_type = 'gz';
+} else {
+if ($p_compress == 'bz2') {
+$this->_compress = true;
+$this->_compress_type = 'bz2';
+} else {
+if ($p_compress == 'lzma2') {
+$this->_compress = true;
+$this->_compress_type = 'lzma2';
+} else {
+$this->_error(
+"Unsupported compression type '$p_compress'\n" .
+"Supported types are 'gz', 'bz2' and 'lzma2'.\n"
+);
+return false;
+}
+}
+}
+}
+$this->_tarname = $p_tarname;
+if ($this->_compress) { // assert zlib or bz2 or xz extension support
+if ($this->_compress_type == 'gz') {
+$extname = 'zlib';
+} else {
+if ($this->_compress_type == 'bz2') {
+$extname = 'bz2';
+} else {
+if ($this->_compress_type == 'lzma2') {
+$extname = 'xz';
+}
+}
+}
+if (!extension_loaded($extname)) {
+// Drupal change PEAR::loadExtension($extname).
+$this->loadExtension($extname);
+}
+if (!extension_loaded($extname)) {
+$this->_error(
+"The extension '$extname' couldn't be found.\n" .
+"Please make sure your version of PHP was built " .
+"with '$extname' support.\n"
+);
+return false;
+}
+}
+}
+public function __destruct()
+{
+$this->_close();
+// ----- Look for a local copy to delete
+if ($this->_temp_tarname != '') {
+@drupal_unlink($this->_temp_tarname);
+}
+}
+// Drupal addition from PEAR.php.
+/**
+* OS independent PHP extension load. Remember to take care
+* on the correct extension name for case sensitive OSes.
+*
+* @param string $ext The extension name
+* @return bool Success or not on the dl() call
+*/
+function loadExtension($ext)
+{
+if (extension_loaded($ext)) {
+return true;
+}
+// if either returns true dl() will produce a FATAL error, stop that
+if (
+function_exists('dl') === false ||
+ini_get('enable_dl') != 1 ||
+ini_get('safe_mode') == 1
+) {
+return false;
+}
+if (OS_WINDOWS) {
+$suffix = '.dll';
+} elseif (PHP_OS == 'HP-UX') {
+$suffix = '.sl';
+} elseif (PHP_OS == 'AIX') {
+$suffix = '.a';
+} elseif (PHP_OS == 'OSX') {
+$suffix = '.bundle';
+} else {
+$suffix = '.so';
+}
+return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix);
+}
+/**
+* This method creates the archive file and add the files / directories
+* that are listed in $p_filelist.
+* If a file with the same name exist and is writable, it is replaced
+* by the new tar.
+* The method return false and a PEAR error text.
+* The $p_filelist parameter can be an array of string, each string
+* representing a filename or a directory name with their path if
+* needed. It can also be a single string with names separated by a
+* single blank.
+* For each directory added in the archive, the files and
+* sub-directories are also added.
+* See also createModify() method for more details.
+*
+* @param array $p_filelist An array of filenames and directory names, or a
+*              single string with names separated by a single
+*              blank space.
+*
+* @return true on success, false on error.
+* @see    createModify()
+*/
+public function create($p_filelist)
+{
+return $this->createModify($p_filelist, '', '');
+}
+/**
+* This method add the files / directories that are listed in $p_filelist in
+* the archive. If the archive does not exist it is created.
+* The method return false and a PEAR error text.
+* The files and directories listed are only added at the end of the archive,
+* even if a file with the same name is already archived.
+* See also createModify() method for more details.
+*
+* @param array $p_filelist An array of filenames and directory names, or a
+*              single string with names separated by a single
+*              blank space.
+*
+* @return true on success, false on error.
+* @see    createModify()
+* @access public
+*/
+public function add($p_filelist)
+{
+return $this->addModify($p_filelist, '', '');
+}
+/**
+* @param string $p_path
+* @param bool $p_preserve
+* @return bool
+*/
+public function extract($p_path = '', $p_preserve = false)
+{
+return $this->extractModify($p_path, '', $p_preserve);
+}
+/**
+* @return array|int
+*/
+public function listContent()
+{
+$v_list_detail = array();
+if ($this->_openRead()) {
+if (!$this->_extractList('', $v_list_detail, "list", '', '')) {
+unset($v_list_detail);
+$v_list_detail = 0;
+}
+$this->_close();
+}
+return $v_list_detail;
+}
+/**
+* This method creates the archive file and add the files / directories
+* that are listed in $p_filelist.
+* If the file already exists and is writable, it is replaced by the
+* new tar. It is a create and not an add. If the file exists and is
+* read-only or is a directory it is not replaced. The method return
+* false and a PEAR error text.
+* The $p_filelist parameter can be an array of string, each string
+* representing a filename or a directory name with their path if
+* needed. It can also be a single string with names separated by a
+* single blank.
+* The path indicated in $p_remove_dir will be removed from the
+* memorized path of each file / directory listed when this path
+* exists. By default nothing is removed (empty path '')
+* The path indicated in $p_add_dir will be added at the beginning of
+* the memorized path of each file / directory listed. However it can
+* be set to empty ''. The adding of a path is done after the removing
+* of path.
+* The path add/remove ability enables the user to prepare an archive
+* for extraction in a different path than the origin files are.
+* See also addModify() method for file adding properties.
+*
+* @param array $p_filelist An array of filenames and directory names,
+*                             or a single string with names separated by
+*                             a single blank space.
+* @param string $p_add_dir A string which contains a path to be added
+*                             to the memorized path of each element in
+*                             the list.
+* @param string $p_remove_dir A string which contains a path to be
+*                             removed from the memorized path of each
+*                             element in the list, when relevant.
+*
+* @return boolean true on success, false on error.
+* @see addModify()
+*/
+public function createModify($p_filelist, $p_add_dir, $p_remove_dir = '')
+{
+$v_result = true;
+if (!$this->_openWrite()) {
+return false;
+}
+if ($p_filelist != '') {
+if (is_array($p_filelist)) {
+$v_list = $p_filelist;
+} elseif (is_string($p_filelist)) {
+$v_list = explode($this->_separator, $p_filelist);
+} else {
+$this->_cleanFile();
+$this->_error('Invalid file list');
+return false;
+}
+$v_result = $this->_addList($v_list, $p_add_dir, $p_remove_dir);
+}
+if ($v_result) {
+$this->_writeFooter();
+$this->_close();
+} else {
+$this->_cleanFile();
+}
+return $v_result;
+}
+/**
+* This method add the files / directories listed in $p_filelist at the
+* end of the existing archive. If the archive does not yet exists it
+* is created.
+* The $p_filelist parameter can be an array of string, each string
+* representing a filename or a directory name with their path if
+* needed. It can also be a single string with names separated by a
+* single blank.
+* The path indicated in $p_remove_dir will be removed from the
+* memorized path of each file / directory listed when this path
+* exists. By default nothing is removed (empty path '')
+* The path indicated in $p_add_dir will be added at the beginning of
+* the memorized path of each file / directory listed. However it can
+* be set to empty ''. The adding of a path is done after the removing
+* of path.
+* The path add/remove ability enables the user to prepare an archive
+* for extraction in a different path than the origin files are.
+* If a file/dir is already in the archive it will only be added at the
+* end of the archive. There is no update of the existing archived
+* file/dir. However while extracting the archive, the last file will
+* replace the first one. This results in a none optimization of the
+* archive size.
+* If a file/dir does not exist the file/dir is ignored. However an
+* error text is send to PEAR error.
+* If a file/dir is not readable the file/dir is ignored. However an
+* error text is send to PEAR error.
+*
+* @param array $p_filelist An array of filenames and directory
+*                             names, or a single string with names
+*                             separated by a single blank space.
+* @param string $p_add_dir A string which contains a path to be
+*                             added to the memorized path of each
+*                             element in the list.
+* @param string $p_remove_dir A string which contains a path to be
+*                             removed from the memorized path of
+*                             each element in the list, when
+*                             relevant.
+*
+* @return true on success, false on error.
+*/
+public function addModify($p_filelist, $p_add_dir, $p_remove_dir = '')
+{
+$v_result = true;
+if (!$this->_isArchive()) {
+$v_result = $this->createModify(
+$p_filelist,
+$p_add_dir,
+$p_remove_dir
+);
+} else {
+if (is_array($p_filelist)) {
+$v_list = $p_filelist;
+} elseif (is_string($p_filelist)) {
+$v_list = explode($this->_separator, $p_filelist);
+} else {
+$this->_error('Invalid file list');
+return false;
+}
+$v_result = $this->_append($v_list, $p_add_dir, $p_remove_dir);
+}
+return $v_result;
+}
+/**
+* This method add a single string as a file at the
+* end of the existing archive. If the archive does not yet exists it
+* is created.
+*
+* @param string $p_filename A string which contains the full
+*                           filename path that will be associated
+*                           with the string.
+* @param string $p_string The content of the file added in
+*                           the archive.
+* @param bool|int $p_datetime A custom date/time (unix timestamp)
+*                           for the file (optional).
+* @param array $p_params An array of optional params:
+*                               stamp => the datetime (replaces
+*                                   datetime above if it exists)
+*                               mode => the permissions on the
+*                                   file (600 by default)
+*                               type => is this a link?  See the
+*                                   tar specification for details.
+*                                   (default = regular file)
+*                               uid => the user ID of the file
+*                                   (default = 0 = root)
+*                               gid => the group ID of the file
+*                                   (default = 0 = root)
+*
+* @return true on success, false on error.
+*/
+public function addString($p_filename, $p_string, $p_datetime = false, $p_params = array())
+{
+$p_stamp = @$p_params["stamp"] ? $p_params["stamp"] : ($p_datetime ? $p_datetime : time());
+$p_mode = @$p_params["mode"] ? $p_params["mode"] : 0600;
+$p_type = @$p_params["type"] ? $p_params["type"] : "";
+$p_uid = @$p_params["uid"] ? $p_params["uid"] : "";
+$p_gid = @$p_params["gid"] ? $p_params["gid"] : "";
+$v_result = true;
+if (!$this->_isArchive()) {
+if (!$this->_openWrite()) {
+return false;
+}
+$this->_close();
+}
+if (!$this->_openAppend()) {
+return false;
+}
+// Need to check the get back to the temporary file ? ....
+$v_result = $this->_addString($p_filename, $p_string, $p_datetime, $p_params);
+$this->_writeFooter();
+$this->_close();
+return $v_result;
+}
+/**
+* This method extract all the content of the archive in the directory
+* indicated by $p_path. When relevant the memorized path of the
+* files/dir can be modified by removing the $p_remove_path path at the
+* beginning of the file/dir path.
+* While extracting a file, if the directory path does not exists it is
+* created.
+* While extracting a file, if the file already exists it is replaced
+* without looking for last modification date.
+* While extracting a file, if the file already exists and is write
+* protected, the extraction is aborted.
+* While extracting a file, if a directory with the same name already
+* exists, the extraction is aborted.
+* While extracting a directory, if a file with the same name already
+* exists, the extraction is aborted.
+* While extracting a file/directory if the destination directory exist
+* and is write protected, or does not exist but can not be created,
+* the extraction is aborted.
+* If after extraction an extracted file does not show the correct
+* stored file size, the extraction is aborted.
+* When the extraction is aborted, a PEAR error text is set and false
+* is returned. However the result can be a partial extraction that may
+* need to be manually cleaned.
+*
+* @param string $p_path The path of the directory where the
+*                               files/dir need to by extracted.
+* @param string $p_remove_path Part of the memorized path that can be
+*                               removed if present at the beginning of
+*                               the file/dir path.
+* @param boolean $p_preserve Preserve user/group ownership of files
+*
+* @return boolean true on success, false on error.
+* @see    extractList()
+*/
+public function extractModify($p_path, $p_remove_path, $p_preserve = false)
+{
+$v_result = true;
+$v_list_detail = array();
+if ($v_result = $this->_openRead()) {
+$v_result = $this->_extractList(
+$p_path,
+$v_list_detail,
+"complete",
+0,
+$p_remove_path,
+$p_preserve
+);
+$this->_close();
+}
+return $v_result;
+}
+/**
+* This method extract from the archive one file identified by $p_filename.
+* The return value is a string with the file content, or NULL on error.
+*
+* @param string $p_filename The path of the file to extract in a string.
+*
+* @return a string with the file content or NULL.
+*/
+public function extractInString($p_filename)
+{
+if ($this->_openRead()) {
+$v_result = $this->_extractInString($p_filename);
+$this->_close();
+} else {
+$v_result = null;
+}
+return $v_result;
+}
+/**
+* This method extract from the archive only the files indicated in the
+* $p_filelist. These files are extracted in the current directory or
+* in the directory indicated by the optional $p_path parameter.
+* If indicated the $p_remove_path can be used in the same way as it is
+* used in extractModify() method.
+*
+* @param array $p_filelist An array of filenames and directory names,
+*                               or a single string with names separated
+*                               by a single blank space.
+* @param string $p_path The path of the directory where the
+*                               files/dir need to by extracted.
+* @param string $p_remove_path Part of the memorized path that can be
+*                               removed if present at the beginning of
+*                               the file/dir path.
+* @param boolean $p_preserve Preserve user/group ownership of files
+*
+* @return true on success, false on error.
+* @see    extractModify()
+*/
+public function extractList($p_filelist, $p_path = '', $p_remove_path = '', $p_preserve = false)
+{
+$v_result = true;
+$v_list_detail = array();
+if (is_array($p_filelist)) {
+$v_list = $p_filelist;
+} elseif (is_string($p_filelist)) {
+$v_list = explode($this->_separator, $p_filelist);
+} else {
+$this->_error('Invalid string list');
+return false;
+}
+if ($v_result = $this->_openRead()) {
+$v_result = $this->_extractList(
+$p_path,
+$v_list_detail,
+"partial",
+$v_list,
+$p_remove_path,
+$p_preserve
+);
+$this->_close();
+}
+return $v_result;
+}
+/**
+* This method set specific attributes of the archive. It uses a variable
+* list of parameters, in the format attribute code + attribute values :
+* $arch->setAttribute(ARCHIVE_TAR_ATT_SEPARATOR, ',');
+*
+* @return true on success, false on error.
+*/
+public function setAttribute()
+{
+$v_result = true;
+// ----- Get the number of variable list of arguments
+if (($v_size = func_num_args()) == 0) {
+return true;
+}
+// ----- Get the arguments
+$v_att_list = & func_get_args();
+// ----- Read the attributes
+$i = 0;
+while ($i < $v_size) {
+// ----- Look for next option
+switch ($v_att_list[$i]) {
+// ----- Look for options that request a string value
+case ARCHIVE_TAR_ATT_SEPARATOR :
+// ----- Check the number of parameters
+if (($i + 1) >= $v_size) {
+$this->_error(
+'Invalid number of parameters for '
+. 'attribute ARCHIVE_TAR_ATT_SEPARATOR'
+);
+return false;
+}
+// ----- Get the value
+$this->_separator = $v_att_list[$i + 1];
+$i++;
+break;
+default :
+$this->_error('Unknown attribute code ' . $v_att_list[$i] . '');
+return false;
+}
+// ----- Next attribute
+$i++;
+}
+return $v_result;
+}
+/**
+* This method sets the regular expression for ignoring files and directories
+* at import, for example:
+* $arch->setIgnoreRegexp("#CVS|\.svn#");
+*
+* @param string $regexp regular expression defining which files or directories to ignore
+*/
+public function setIgnoreRegexp($regexp)
+{
+$this->_ignore_regexp = $regexp;
+}
+/**
+* This method sets the regular expression for ignoring all files and directories
+* matching the filenames in the array list at import, for example:
+* $arch->setIgnoreList(array('CVS', '.svn', 'bin/tool'));
+*
+* @param array $list a list of file or directory names to ignore
+*
+* @access public
+*/
+public function setIgnoreList($list)
+{
+$regexp = str_replace(array('#', '.', '^', '$'), array('\#', '\.', '\^', '\$'), $list);
+$regexp = '#/' . join('$|/', $list) . '#';
+$this->setIgnoreRegexp($regexp);
+}
+/**
+* @param string $p_message
+*/
+public function _error($p_message)
+{
+// Drupal change $this->error_object = $this->raiseError($p_message).
+throw new Exception($p_message);
+}
+/**
+* @param string $p_message
+*/
+public function _warning($p_message)
+{
+// Drupal change $this->error_object = $this->raiseError($p_message).
+throw new Exception($p_message);
+}
+/**
+* @param string $p_filename
+* @return bool
+*/
+public function _isArchive($p_filename = null)
+{
+if ($p_filename == null) {
+$p_filename = $this->_tarname;
+}
+clearstatcache();
+return @is_file($p_filename) && !@is_link($p_filename);
+}
+/**
+* @return bool
+*/
+public function _openWrite()
+{
+if ($this->_compress_type == 'gz' && function_exists('gzopen')) {
+$this->_file = @gzopen($this->_tarname, "wb9");
+} else {
+if ($this->_compress_type == 'bz2' && function_exists('bzopen')) {
+$this->_file = @bzopen($this->_tarname, "w");
+} else {
+if ($this->_compress_type == 'lzma2' && function_exists('xzopen')) {
+$this->_file = @xzopen($this->_tarname, 'w');
+} else {
+if ($this->_compress_type == 'none') {
+$this->_file = @fopen($this->_tarname, "wb");
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+return false;
+}
+}
+}
+}
+if ($this->_file == 0) {
+$this->_error(
+'Unable to open in write mode \''
+. $this->_tarname . '\''
+);
+return false;
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _openRead()
+{
+if (strtolower(substr($this->_tarname, 0, 7)) == 'http://') {
+// ----- Look if a local copy need to be done
+if ($this->_temp_tarname == '') {
+$this->_temp_tarname = uniqid('tar') . '.tmp';
+if (!$v_file_from = @fopen($this->_tarname, 'rb')) {
+$this->_error(
+'Unable to open in read mode \''
+. $this->_tarname . '\''
+);
+$this->_temp_tarname = '';
+return false;
+}
+if (!$v_file_to = @fopen($this->_temp_tarname, 'wb')) {
+$this->_error(
+'Unable to open in write mode \''
+. $this->_temp_tarname . '\''
+);
+$this->_temp_tarname = '';
+return false;
+}
+while ($v_data = @fread($v_file_from, 1024)) {
+@fwrite($v_file_to, $v_data);
+}
+@fclose($v_file_from);
+@fclose($v_file_to);
+}
+// ----- File to open if the local copy
+$v_filename = $this->_temp_tarname;
+} else {
+// ----- File to open if the normal Tar file
+$v_filename = $this->_tarname;
+}
+if ($this->_compress_type == 'gz' && function_exists('gzopen')) {
+$this->_file = @gzopen($v_filename, "rb");
+} else {
+if ($this->_compress_type == 'bz2' && function_exists('bzopen')) {
+$this->_file = @bzopen($v_filename, "r");
+} else {
+if ($this->_compress_type == 'lzma2' && function_exists('xzopen')) {
+$this->_file = @xzopen($v_filename, "r");
+} else {
+if ($this->_compress_type == 'none') {
+$this->_file = @fopen($v_filename, "rb");
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+return false;
+}
+}
+}
+}
+if ($this->_file == 0) {
+$this->_error('Unable to open in read mode \'' . $v_filename . '\'');
+return false;
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _openReadWrite()
+{
+if ($this->_compress_type == 'gz') {
+$this->_file = @gzopen($this->_tarname, "r+b");
+} else {
+if ($this->_compress_type == 'bz2') {
+$this->_error(
+'Unable to open bz2 in read/write mode \''
+. $this->_tarname . '\' (limitation of bz2 extension)'
+);
+return false;
+} else {
+if ($this->_compress_type == 'lzma2') {
+$this->_error(
+'Unable to open lzma2 in read/write mode \''
+. $this->_tarname . '\' (limitation of lzma2 extension)'
+);
+return false;
+} else {
+if ($this->_compress_type == 'none') {
+$this->_file = @fopen($this->_tarname, "r+b");
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+return false;
+}
+}
+}
+}
+if ($this->_file == 0) {
+$this->_error(
+'Unable to open in read/write mode \''
+. $this->_tarname . '\''
+);
+return false;
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _close()
+{
+//if (isset($this->_file)) {
+if (is_resource($this->_file)) {
+if ($this->_compress_type == 'gz') {
+@gzclose($this->_file);
+} else {
+if ($this->_compress_type == 'bz2') {
+@bzclose($this->_file);
+} else {
+if ($this->_compress_type == 'lzma2') {
+@xzclose($this->_file);
+} else {
+if ($this->_compress_type == 'none') {
+@fclose($this->_file);
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+}
+}
+}
+}
+$this->_file = 0;
+}
+// ----- Look if a local copy need to be erase
+// Note that it might be interesting to keep the url for a time : ToDo
+if ($this->_temp_tarname != '') {
+@drupal_unlink($this->_temp_tarname);
+$this->_temp_tarname = '';
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _cleanFile()
+{
+$this->_close();
+// ----- Look for a local copy
+if ($this->_temp_tarname != '') {
+// ----- Remove the local copy but not the remote tarname
+@drupal_unlink($this->_temp_tarname);
+$this->_temp_tarname = '';
+} else {
+// ----- Remove the local tarname file
+@drupal_unlink($this->_tarname);
+}
+$this->_tarname = '';
+return true;
+}
+/**
+* @param mixed $p_binary_data
+* @param integer $p_len
+* @return bool
+*/
+public function _writeBlock($p_binary_data, $p_len = null)
+{
+if (is_resource($this->_file)) {
+if ($p_len === null) {
+if ($this->_compress_type == 'gz') {
+@gzputs($this->_file, $p_binary_data);
+} else {
+if ($this->_compress_type == 'bz2') {
+@bzwrite($this->_file, $p_binary_data);
+} else {
+if ($this->_compress_type == 'lzma2') {
+@xzwrite($this->_file, $p_binary_data);
+} else {
+if ($this->_compress_type == 'none') {
+@fputs($this->_file, $p_binary_data);
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+}
+}
+}
+}
+} else {
+if ($this->_compress_type == 'gz') {
+@gzputs($this->_file, $p_binary_data, $p_len);
+} else {
+if ($this->_compress_type == 'bz2') {
+@bzwrite($this->_file, $p_binary_data, $p_len);
+} else {
+if ($this->_compress_type == 'lzma2') {
+@xzwrite($this->_file, $p_binary_data, $p_len);
+} else {
+if ($this->_compress_type == 'none') {
+@fputs($this->_file, $p_binary_data, $p_len);
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+}
+}
+}
+}
+}
+}
+return true;
+}
+/**
+* @return null|string
+*/
+public function _readBlock()
+{
+$v_block = null;
+if (is_resource($this->_file)) {
+if ($this->_compress_type == 'gz') {
+$v_block = @gzread($this->_file, 512);
+} else {
+if ($this->_compress_type == 'bz2') {
+$v_block = @bzread($this->_file, 512);
+} else {
+if ($this->_compress_type == 'lzma2') {
+$v_block = @xzread($this->_file, 512);
+} else {
+if ($this->_compress_type == 'none') {
+$v_block = @fread($this->_file, 512);
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+}
+}
+}
+}
+}
+return $v_block;
+}
+/**
+* @param null $p_len
+* @return bool
+*/
+public function _jumpBlock($p_len = null)
+{
+if (is_resource($this->_file)) {
+if ($p_len === null) {
+$p_len = 1;
+}
+if ($this->_compress_type == 'gz') {
+@gzseek($this->_file, gztell($this->_file) + ($p_len * 512));
+} else {
+if ($this->_compress_type == 'bz2') {
+// ----- Replace missing bztell() and bzseek()
+for ($i = 0; $i < $p_len; $i++) {
+$this->_readBlock();
+}
+} else {
+if ($this->_compress_type == 'lzma2') {
+// ----- Replace missing xztell() and xzseek()
+for ($i = 0; $i < $p_len; $i++) {
+$this->_readBlock();
+}
+} else {
+if ($this->_compress_type == 'none') {
+@fseek($this->_file, $p_len * 512, SEEK_CUR);
+} else {
+$this->_error(
+'Unknown or missing compression type ('
+. $this->_compress_type . ')'
+);
+}
+}
+}
+}
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _writeFooter()
+{
+if (is_resource($this->_file)) {
+// ----- Write the last 0 filled block for end of archive
+$v_binary_data = pack('a1024', '');
+$this->_writeBlock($v_binary_data);
+}
+return true;
+}
+/**
+* @param array $p_list
+* @param string $p_add_dir
+* @param string $p_remove_dir
+* @return bool
+*/
+public function _addList($p_list, $p_add_dir, $p_remove_dir)
+{
+$v_result = true;
+$v_header = array();
+// ----- Remove potential windows directory separator
+$p_add_dir = $this->_translateWinPath($p_add_dir);
+$p_remove_dir = $this->_translateWinPath($p_remove_dir, false);
+if (!$this->_file) {
+$this->_error('Invalid file descriptor');
+return false;
+}
+if (sizeof($p_list) == 0) {
+return true;
+}
+foreach ($p_list as $v_filename) {
+if (!$v_result) {
+break;
+}
+// ----- Skip the current tar name
+if ($v_filename == $this->_tarname) {
+continue;
+}
+if ($v_filename == '') {
+continue;
+}
+// ----- ignore files and directories matching the ignore regular expression
+if ($this->_ignore_regexp && preg_match($this->_ignore_regexp, '/' . $v_filename)) {
+$this->_warning("File '$v_filename' ignored");
+continue;
+}
+if (!file_exists($v_filename) && !is_link($v_filename)) {
+$this->_warning("File '$v_filename' does not exist");
+continue;
+}
+// ----- Add the file or directory header
+if (!$this->_addFile($v_filename, $v_header, $p_add_dir, $p_remove_dir)) {
+return false;
+}
+if (@is_dir($v_filename) && !@is_link($v_filename)) {
+if (!($p_hdir = opendir($v_filename))) {
+$this->_warning("Directory '$v_filename' can not be read");
+continue;
+}
+while (false !== ($p_hitem = readdir($p_hdir))) {
+if (($p_hitem != '.') && ($p_hitem != '..')) {
+if ($v_filename != ".") {
+$p_temp_list[0] = $v_filename . '/' . $p_hitem;
+} else {
+$p_temp_list[0] = $p_hitem;
+}
+$v_result = $this->_addList(
+$p_temp_list,
+$p_add_dir,
+$p_remove_dir
+);
+}
+}
+unset($p_temp_list);
+unset($p_hdir);
+unset($p_hitem);
+}
+}
+return $v_result;
+}
+/**
+* @param string $p_filename
+* @param mixed $p_header
+* @param string $p_add_dir
+* @param string $p_remove_dir
+* @param null $v_stored_filename
+* @return bool
+*/
+public function _addFile($p_filename, &$p_header, $p_add_dir, $p_remove_dir, $v_stored_filename = null)
+{
+if (!$this->_file) {
+$this->_error('Invalid file descriptor');
+return false;
+}
+if ($p_filename == '') {
+$this->_error('Invalid file name');
+return false;
+}
+if (is_null($v_stored_filename)) {
+// ----- Calculate the stored filename
+$p_filename = $this->_translateWinPath($p_filename, false);
+$v_stored_filename = $p_filename;
+if (strcmp($p_filename, $p_remove_dir) == 0) {
+return true;
+}
+if ($p_remove_dir != '') {
+if (substr($p_remove_dir, -1) != '/') {
+$p_remove_dir .= '/';
+}
+if (substr($p_filename, 0, strlen($p_remove_dir)) == $p_remove_dir) {
+$v_stored_filename = substr($p_filename, strlen($p_remove_dir));
+}
+}
+$v_stored_filename = $this->_translateWinPath($v_stored_filename);
+if ($p_add_dir != '') {
+if (substr($p_add_dir, -1) == '/') {
+$v_stored_filename = $p_add_dir . $v_stored_filename;
+} else {
+$v_stored_filename = $p_add_dir . '/' . $v_stored_filename;
+}
+}
+$v_stored_filename = $this->_pathReduction($v_stored_filename);
+}
+if ($this->_isArchive($p_filename)) {
+if (($v_file = @fopen($p_filename, "rb")) == 0) {
+$this->_warning(
+"Unable to open file '" . $p_filename
+. "' in binary read mode"
+);
+return true;
+}
+if (!$this->_writeHeader($p_filename, $v_stored_filename)) {
+return false;
+}
+while (($v_buffer = fread($v_file, 512)) != '') {
+$v_binary_data = pack("a512", "$v_buffer");
+$this->_writeBlock($v_binary_data);
+}
+fclose($v_file);
+} else {
+// ----- Only header for dir
+if (!$this->_writeHeader($p_filename, $v_stored_filename)) {
+return false;
+}
+}
+return true;
+}
+/**
+* @param string $p_filename
+* @param string $p_string
+* @param bool $p_datetime
+* @param array $p_params
+* @return bool
+*/
+public function _addString($p_filename, $p_string, $p_datetime = false, $p_params = array())
+{
+$p_stamp = @$p_params["stamp"] ? $p_params["stamp"] : ($p_datetime ? $p_datetime : time());
+$p_mode = @$p_params["mode"] ? $p_params["mode"] : 0600;
+$p_type = @$p_params["type"] ? $p_params["type"] : "";
+$p_uid = @$p_params["uid"] ? $p_params["uid"] : 0;
+$p_gid = @$p_params["gid"] ? $p_params["gid"] : 0;
+if (!$this->_file) {
+$this->_error('Invalid file descriptor');
+return false;
+}
+if ($p_filename == '') {
+$this->_error('Invalid file name');
+return false;
+}
+// ----- Calculate the stored filename
+$p_filename = $this->_translateWinPath($p_filename, false);
+// ----- If datetime is not specified, set current time
+if ($p_datetime === false) {
+$p_datetime = time();
+}
+if (!$this->_writeHeaderBlock(
+$p_filename,
+strlen($p_string),
+$p_stamp,
+$p_mode,
+$p_type,
+$p_uid,
+$p_gid
+)
+) {
+return false;
+}
+$i = 0;
+while (($v_buffer = substr($p_string, (($i++) * 512), 512)) != '') {
+$v_binary_data = pack("a512", $v_buffer);
+$this->_writeBlock($v_binary_data);
+}
+return true;
+}
+/**
+* @param string $p_filename
+* @param string $p_stored_filename
+* @return bool
+*/
+public function _writeHeader($p_filename, $p_stored_filename)
+{
+if ($p_stored_filename == '') {
+$p_stored_filename = $p_filename;
+}
+$v_reduce_filename = $this->_pathReduction($p_stored_filename);
+if (strlen($v_reduce_filename) > 99) {
+if (!$this->_writeLongHeader($v_reduce_filename)) {
+return false;
+}
+}
+$v_info = lstat($p_filename);
+$v_uid = sprintf("%07s", DecOct($v_info[4]));
+$v_gid = sprintf("%07s", DecOct($v_info[5]));
+$v_perms = sprintf("%07s", DecOct($v_info['mode'] & 000777));
+$v_mtime = sprintf("%011s", DecOct($v_info['mtime']));
+$v_linkname = '';
+if (@is_link($p_filename)) {
+$v_typeflag = '2';
+$v_linkname = readlink($p_filename);
+$v_size = sprintf("%011s", DecOct(0));
+} elseif (@is_dir($p_filename)) {
+$v_typeflag = "5";
+$v_size = sprintf("%011s", DecOct(0));
+} else {
+$v_typeflag = '0';
+clearstatcache();
+$v_size = sprintf("%011s", DecOct($v_info['size']));
+}
+$v_magic = 'ustar ';
+$v_version = ' ';
+if (function_exists('posix_getpwuid')) {
+$userinfo = posix_getpwuid($v_info[4]);
+$groupinfo = posix_getgrgid($v_info[5]);
+$v_uname = $userinfo['name'];
+$v_gname = $groupinfo['name'];
+} else {
+$v_uname = '';
+$v_gname = '';
+}
+$v_devmajor = '';
+$v_devminor = '';
+$v_prefix = '';
+$v_binary_data_first = pack(
+"a100a8a8a8a12a12",
+$v_reduce_filename,
+$v_perms,
+$v_uid,
+$v_gid,
+$v_size,
+$v_mtime
+);
+$v_binary_data_last = pack(
+"a1a100a6a2a32a32a8a8a155a12",
+$v_typeflag,
+$v_linkname,
+$v_magic,
+$v_version,
+$v_uname,
+$v_gname,
+$v_devmajor,
+$v_devminor,
+$v_prefix,
+''
+);
+// ----- Calculate the checksum
+$v_checksum = 0;
+// ..... First part of the header
+for ($i = 0; $i < 148; $i++) {
+$v_checksum += ord(substr($v_binary_data_first, $i, 1));
+}
+// ..... Ignore the checksum value and replace it by ' ' (space)
+for ($i = 148; $i < 156; $i++) {
+$v_checksum += ord(' ');
+}
+// ..... Last part of the header
+for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
+$v_checksum += ord(substr($v_binary_data_last, $j, 1));
+}
+// ----- Write the first 148 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_first, 148);
+// ----- Write the calculated checksum
+$v_checksum = sprintf("%06s ", DecOct($v_checksum));
+$v_binary_data = pack("a8", $v_checksum);
+$this->_writeBlock($v_binary_data, 8);
+// ----- Write the last 356 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_last, 356);
+return true;
+}
+/**
+* @param string $p_filename
+* @param int $p_size
+* @param int $p_mtime
+* @param int $p_perms
+* @param string $p_type
+* @param int $p_uid
+* @param int $p_gid
+* @return bool
+*/
+public function _writeHeaderBlock(
+$p_filename,
+$p_size,
+$p_mtime = 0,
+$p_perms = 0,
+$p_type = '',
+$p_uid = 0,
+$p_gid = 0
+) {
+$p_filename = $this->_pathReduction($p_filename);
+if (strlen($p_filename) > 99) {
+if (!$this->_writeLongHeader($p_filename)) {
+return false;
+}
+}
+if ($p_type == "5") {
+$v_size = sprintf("%011s", DecOct(0));
+} else {
+$v_size = sprintf("%011s", DecOct($p_size));
+}
+$v_uid = sprintf("%07s", DecOct($p_uid));
+$v_gid = sprintf("%07s", DecOct($p_gid));
+$v_perms = sprintf("%07s", DecOct($p_perms & 000777));
+$v_mtime = sprintf("%11s", DecOct($p_mtime));
+$v_linkname = '';
+$v_magic = 'ustar ';
+$v_version = ' ';
+if (function_exists('posix_getpwuid')) {
+$userinfo = posix_getpwuid($p_uid);
+$groupinfo = posix_getgrgid($p_gid);
+$v_uname = $userinfo['name'];
+$v_gname = $groupinfo['name'];
+} else {
+$v_uname = '';
+$v_gname = '';
+}
+$v_devmajor = '';
+$v_devminor = '';
+$v_prefix = '';
+$v_binary_data_first = pack(
+"a100a8a8a8a12A12",
+$p_filename,
+$v_perms,
+$v_uid,
+$v_gid,
+$v_size,
+$v_mtime
+);
+$v_binary_data_last = pack(
+"a1a100a6a2a32a32a8a8a155a12",
+$p_type,
+$v_linkname,
+$v_magic,
+$v_version,
+$v_uname,
+$v_gname,
+$v_devmajor,
+$v_devminor,
+$v_prefix,
+''
+);
+// ----- Calculate the checksum
+$v_checksum = 0;
+// ..... First part of the header
+for ($i = 0; $i < 148; $i++) {
+$v_checksum += ord(substr($v_binary_data_first, $i, 1));
+}
+// ..... Ignore the checksum value and replace it by ' ' (space)
+for ($i = 148; $i < 156; $i++) {
+$v_checksum += ord(' ');
+}
+// ..... Last part of the header
+for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
+$v_checksum += ord(substr($v_binary_data_last, $j, 1));
+}
+// ----- Write the first 148 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_first, 148);
+// ----- Write the calculated checksum
+$v_checksum = sprintf("%06s ", DecOct($v_checksum));
+$v_binary_data = pack("a8", $v_checksum);
+$this->_writeBlock($v_binary_data, 8);
+// ----- Write the last 356 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_last, 356);
+return true;
+}
+/**
+* @param string $p_filename
+* @return bool
+*/
+public function _writeLongHeader($p_filename)
+{
+$v_size = sprintf("%11s ", DecOct(strlen($p_filename)));
+$v_typeflag = 'L';
+$v_linkname = '';
+$v_magic = '';
+$v_version = '';
+$v_uname = '';
+$v_gname = '';
+$v_devmajor = '';
+$v_devminor = '';
+$v_prefix = '';
+$v_binary_data_first = pack(
+"a100a8a8a8a12a12",
+'././@LongLink',
+0,
+0,
+0,
+$v_size,
+0
+);
+$v_binary_data_last = pack(
+"a1a100a6a2a32a32a8a8a155a12",
+$v_typeflag,
+$v_linkname,
+$v_magic,
+$v_version,
+$v_uname,
+$v_gname,
+$v_devmajor,
+$v_devminor,
+$v_prefix,
+''
+);
+// ----- Calculate the checksum
+$v_checksum = 0;
+// ..... First part of the header
+for ($i = 0; $i < 148; $i++) {
+$v_checksum += ord(substr($v_binary_data_first, $i, 1));
+}
+// ..... Ignore the checksum value and replace it by ' ' (space)
+for ($i = 148; $i < 156; $i++) {
+$v_checksum += ord(' ');
+}
+// ..... Last part of the header
+for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
+$v_checksum += ord(substr($v_binary_data_last, $j, 1));
+}
+// ----- Write the first 148 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_first, 148);
+// ----- Write the calculated checksum
+$v_checksum = sprintf("%06s ", DecOct($v_checksum));
+$v_binary_data = pack("a8", $v_checksum);
+$this->_writeBlock($v_binary_data, 8);
+// ----- Write the last 356 bytes of the header in the archive
+$this->_writeBlock($v_binary_data_last, 356);
+// ----- Write the filename as content of the block
+$i = 0;
+while (($v_buffer = substr($p_filename, (($i++) * 512), 512)) != '') {
+$v_binary_data = pack("a512", "$v_buffer");
+$this->_writeBlock($v_binary_data);
+}
+return true;
+}
+/**
+* @param mixed $v_binary_data
+* @param mixed $v_header
+* @return bool
+*/
+public function _readHeader($v_binary_data, &$v_header)
+{
+if (strlen($v_binary_data) == 0) {
+$v_header['filename'] = '';
+return true;
+}
+if (strlen($v_binary_data) != 512) {
+$v_header['filename'] = '';
+$this->_error('Invalid block size : ' . strlen($v_binary_data));
+return false;
+}
+if (!is_array($v_header)) {
+$v_header = array();
+}
+// ----- Calculate the checksum
+$v_checksum = 0;
+// ..... First part of the header
+for ($i = 0; $i < 148; $i++) {
+$v_checksum += ord(substr($v_binary_data, $i, 1));
+}
+// ..... Ignore the checksum value and replace it by ' ' (space)
+for ($i = 148; $i < 156; $i++) {
+$v_checksum += ord(' ');
+}
+// ..... Last part of the header
+for ($i = 156; $i < 512; $i++) {
+$v_checksum += ord(substr($v_binary_data, $i, 1));
+}
+if (version_compare(PHP_VERSION, "5.5.0-dev") < 0) {
+$fmt = "a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/" .
+"a8checksum/a1typeflag/a100link/a6magic/a2version/" .
+"a32uname/a32gname/a8devmajor/a8devminor/a131prefix";
+} else {
+$fmt = "Z100filename/Z8mode/Z8uid/Z8gid/Z12size/Z12mtime/" .
+"Z8checksum/Z1typeflag/Z100link/Z6magic/Z2version/" .
+"Z32uname/Z32gname/Z8devmajor/Z8devminor/Z131prefix";
+}
+$v_data = unpack($fmt, $v_binary_data);
+if (strlen($v_data["prefix"]) > 0) {
+$v_data["filename"] = "$v_data[prefix]/$v_data[filename]";
+}
+// ----- Extract the checksum
+$v_header['checksum'] = OctDec(trim($v_data['checksum']));
+if ($v_header['checksum'] != $v_checksum) {
+$v_header['filename'] = '';
+// ----- Look for last block (empty block)
+if (($v_checksum == 256) && ($v_header['checksum'] == 0)) {
+return true;
+}
+$this->_error(
+'Invalid checksum for file "' . $v_data['filename']
+. '" : ' . $v_checksum . ' calculated, '
+. $v_header['checksum'] . ' expected'
+);
+return false;
+}
+// ----- Extract the properties
+$v_header['filename'] = rtrim($v_data['filename'], "\0");
+if ($this->_maliciousFilename($v_header['filename'])) {
+$this->_error(
+'Malicious .tar detected, file "' . $v_header['filename'] .
+'" will not install in desired directory tree'
+);
+return false;
+}
+$v_header['mode'] = OctDec(trim($v_data['mode']));
+$v_header['uid'] = OctDec(trim($v_data['uid']));
+$v_header['gid'] = OctDec(trim($v_data['gid']));
+$v_header['size'] = OctDec(trim($v_data['size']));
+$v_header['mtime'] = OctDec(trim($v_data['mtime']));
+if (($v_header['typeflag'] = $v_data['typeflag']) == "5") {
+$v_header['size'] = 0;
+}
+$v_header['link'] = trim($v_data['link']);
+/* ----- All these fields are removed form the header because
+they do not carry interesting info
+$v_header[magic] = trim($v_data[magic]);
+$v_header[version] = trim($v_data[version]);
+$v_header[uname] = trim($v_data[uname]);
+$v_header[gname] = trim($v_data[gname]);
+$v_header[devmajor] = trim($v_data[devmajor]);
+$v_header[devminor] = trim($v_data[devminor]);
+*/
+return true;
+}
+/**
+* Detect and report a malicious file name
+*
+* @param string $file
+*
+* @return bool
+*/
+private function _maliciousFilename($file)
+{
+if (strpos($file, '/../') !== false) {
+return true;
+}
+if (strpos($file, '../') === 0) {
+return true;
+}
+return false;
+}
+/**
+* @param $v_header
+* @return bool
+*/
+public function _readLongHeader(&$v_header)
+{
+$v_filename = '';
+$v_filesize = $v_header['size'];
+$n = floor($v_header['size'] / 512);
+for ($i = 0; $i < $n; $i++) {
+$v_content = $this->_readBlock();
+$v_filename .= $v_content;
+}
+if (($v_header['size'] % 512) != 0) {
+$v_content = $this->_readBlock();
+$v_filename .= $v_content;
+}
+// ----- Read the next header
+$v_binary_data = $this->_readBlock();
+if (!$this->_readHeader($v_binary_data, $v_header)) {
+return false;
+}
+$v_filename = rtrim(substr($v_filename, 0, $v_filesize), "\0");
+$v_header['filename'] = $v_filename;
+if ($this->_maliciousFilename($v_filename)) {
+$this->_error(
+'Malicious .tar detected, file "' . $v_filename .
+'" will not install in desired directory tree'
+);
+return false;
+}
+return true;
+}
+/**
+* This method extract from the archive one file identified by $p_filename.
+* The return value is a string with the file content, or null on error.
+*
+* @param string $p_filename The path of the file to extract in a string.
+*
+* @return a string with the file content or null.
+*/
+private function _extractInString($p_filename)
+{
+$v_result_str = "";
+while (strlen($v_binary_data = $this->_readBlock()) != 0) {
+if (!$this->_readHeader($v_binary_data, $v_header)) {
+return null;
+}
+if ($v_header['filename'] == '') {
+continue;
+}
+// ----- Look for long filename
+if ($v_header['typeflag'] == 'L') {
+if (!$this->_readLongHeader($v_header)) {
+return null;
+}
+}
+if ($v_header['filename'] == $p_filename) {
+if ($v_header['typeflag'] == "5") {
+$this->_error(
+'Unable to extract in string a directory '
+. 'entry {' . $v_header['filename'] . '}'
+);
+return null;
+} else {
+$n = floor($v_header['size'] / 512);
+for ($i = 0; $i < $n; $i++) {
+$v_result_str .= $this->_readBlock();
+}
+if (($v_header['size'] % 512) != 0) {
+$v_content = $this->_readBlock();
+$v_result_str .= substr(
+$v_content,
+0,
+($v_header['size'] % 512)
+);
+}
+return $v_result_str;
+}
+} else {
+$this->_jumpBlock(ceil(($v_header['size'] / 512)));
+}
+}
+return null;
+}
+/**
+* @param string $p_path
+* @param string $p_list_detail
+* @param string $p_mode
+* @param string $p_file_list
+* @param string $p_remove_path
+* @param bool $p_preserve
+* @return bool
+*/
+public function _extractList(
+$p_path,
+&$p_list_detail,
+$p_mode,
+$p_file_list,
+$p_remove_path,
+$p_preserve = false
+) {
+$v_result = true;
+$v_nb = 0;
+$v_extract_all = true;
+$v_listing = false;
+$p_path = $this->_translateWinPath($p_path, false);
+if ($p_path == '' || (substr($p_path, 0, 1) != '/'
+&& substr($p_path, 0, 3) != "../" && !strpos($p_path, ':'))
+) {
+$p_path = "./" . $p_path;
+}
+$p_remove_path = $this->_translateWinPath($p_remove_path);
+// ----- Look for path to remove format (should end by /)
+if (($p_remove_path != '') && (substr($p_remove_path, -1) != '/')) {
+$p_remove_path .= '/';
+}
+$p_remove_path_size = strlen($p_remove_path);
+switch ($p_mode) {
+case "complete" :
+$v_extract_all = true;
+$v_listing = false;
+break;
+case "partial" :
+$v_extract_all = false;
+$v_listing = false;
+break;
+case "list" :
+$v_extract_all = false;
+$v_listing = true;
+break;
+default :
+$this->_error('Invalid extract mode (' . $p_mode . ')');
+return false;
+}
+clearstatcache();
+while (strlen($v_binary_data = $this->_readBlock()) != 0) {
+$v_extract_file = false;
+$v_extraction_stopped = 0;
+if (!$this->_readHeader($v_binary_data, $v_header)) {
+return false;
+}
+if ($v_header['filename'] == '') {
+continue;
+}
+// ----- Look for long filename
+if ($v_header['typeflag'] == 'L') {
+if (!$this->_readLongHeader($v_header)) {
+return false;
+}
+}
+// ignore extended / pax headers
+if ($v_header['typeflag'] == 'x' || $v_header['typeflag'] == 'g') {
+$this->_jumpBlock(ceil(($v_header['size'] / 512)));
+continue;
+}
+if ((!$v_extract_all) && (is_array($p_file_list))) {
+// ----- By default no unzip if the file is not found
+$v_extract_file = false;
+for ($i = 0; $i < sizeof($p_file_list); $i++) {
+// ----- Look if it is a directory
+if (substr($p_file_list[$i], -1) == '/') {
+// ----- Look if the directory is in the filename path
+if ((strlen($v_header['filename']) > strlen($p_file_list[$i]))
+&& (substr($v_header['filename'], 0, strlen($p_file_list[$i]))
+== $p_file_list[$i])
+) {
+$v_extract_file = true;
+break;
+}
+} // ----- It is a file, so compare the file names
+elseif ($p_file_list[$i] == $v_header['filename']) {
+$v_extract_file = true;
+break;
+}
+}
+} else {
+$v_extract_file = true;
+}
+// ----- Look if this file need to be extracted
+if (($v_extract_file) && (!$v_listing)) {
+if (($p_remove_path != '')
+&& (substr($v_header['filename'] . '/', 0, $p_remove_path_size)
+== $p_remove_path)
+) {
+$v_header['filename'] = substr(
+$v_header['filename'],
+$p_remove_path_size
+);
+if ($v_header['filename'] == '') {
+continue;
+}
+}
+if (($p_path != './') && ($p_path != '/')) {
+while (substr($p_path, -1) == '/') {
+$p_path = substr($p_path, 0, strlen($p_path) - 1);
+}
+if (substr($v_header['filename'], 0, 1) == '/') {
+$v_header['filename'] = $p_path . $v_header['filename'];
+} else {
+$v_header['filename'] = $p_path . '/' . $v_header['filename'];
+}
+}
+if (file_exists($v_header['filename'])) {
+if ((@is_dir($v_header['filename']))
+&& ($v_header['typeflag'] == '')
+) {
+$this->_error(
+'File ' . $v_header['filename']
+. ' already exists as a directory'
+);
+return false;
+}
+if (($this->_isArchive($v_header['filename']))
+&& ($v_header['typeflag'] == "5")
+) {
+$this->_error(
+'Directory ' . $v_header['filename']
+. ' already exists as a file'
+);
+return false;
+}
+if (!is_writeable($v_header['filename'])) {
+$this->_error(
+'File ' . $v_header['filename']
+. ' already exists and is write protected'
+);
+return false;
+}
+if (filemtime($v_header['filename']) > $v_header['mtime']) {
+// To be completed : An error or silent no replace ?
+}
+} // ----- Check the directory availability and create it if necessary
+elseif (($v_result
+= $this->_dirCheck(
+($v_header['typeflag'] == "5"
+? $v_header['filename']
+: dirname($v_header['filename']))
+)) != 1
+) {
+$this->_error('Unable to create path for ' . $v_header['filename']);
+return false;
+}
+if ($v_extract_file) {
+if ($v_header['typeflag'] == "5") {
+if (!@file_exists($v_header['filename'])) {
+if (!@mkdir($v_header['filename'], 0777)) {
+$this->_error(
+'Unable to create directory {'
+. $v_header['filename'] . '}'
+);
+return false;
+}
+}
+} elseif ($v_header['typeflag'] == "2") {
+if (@file_exists($v_header['filename'])) {
+@drupal_unlink($v_header['filename']);
+}
+if (!@symlink($v_header['link'], $v_header['filename'])) {
+$this->_error(
+'Unable to extract symbolic link {'
+. $v_header['filename'] . '}'
+);
+return false;
+}
+} else {
+if (($v_dest_file = @fopen($v_header['filename'], "wb")) == 0) {
+$this->_error(
+'Error while opening {' . $v_header['filename']
+. '} in write binary mode'
+);
+return false;
+} else {
+$n = floor($v_header['size'] / 512);
+for ($i = 0; $i < $n; $i++) {
+$v_content = $this->_readBlock();
+fwrite($v_dest_file, $v_content, 512);
+}
+if (($v_header['size'] % 512) != 0) {
+$v_content = $this->_readBlock();
+fwrite($v_dest_file, $v_content, ($v_header['size'] % 512));
+}
+@fclose($v_dest_file);
+if ($p_preserve) {
+@chown($v_header['filename'], $v_header['uid']);
+@chgrp($v_header['filename'], $v_header['gid']);
+}
+// ----- Change the file mode, mtime
+@touch($v_header['filename'], $v_header['mtime']);
+if ($v_header['mode'] & 0111) {
+// make file executable, obey umask
+$mode = fileperms($v_header['filename']) | (~umask() & 0111);
+@chmod($v_header['filename'], $mode);
+}
+}
+// ----- Check the file size
+clearstatcache();
+if (!is_file($v_header['filename'])) {
+$this->_error(
+'Extracted file ' . $v_header['filename']
+. 'does not exist. Archive may be corrupted.'
+);
+return false;
+}
+$filesize = filesize($v_header['filename']);
+if ($filesize != $v_header['size']) {
+$this->_error(
+'Extracted file ' . $v_header['filename']
+. ' does not have the correct file size \''
+. $filesize
+. '\' (' . $v_header['size']
+. ' expected). Archive may be corrupted.'
+);
+return false;
+}
+}
+} else {
+$this->_jumpBlock(ceil(($v_header['size'] / 512)));
+}
+} else {
+$this->_jumpBlock(ceil(($v_header['size'] / 512)));
+}
+/* TBC : Seems to be unused ...
+if ($this->_compress)
+$v_end_of_file = @gzeof($this->_file);
+else
+$v_end_of_file = @feof($this->_file);
+*/
+if ($v_listing || $v_extract_file || $v_extraction_stopped) {
+// ----- Log extracted files
+if (($v_file_dir = dirname($v_header['filename']))
+== $v_header['filename']
+) {
+$v_file_dir = '';
+}
+if ((substr($v_header['filename'], 0, 1) == '/') && ($v_file_dir == '')) {
+$v_file_dir = '/';
+}
+$p_list_detail[$v_nb++] = $v_header;
+if (is_array($p_file_list) && (count($p_list_detail) == count($p_file_list))) {
+return true;
+}
+}
+}
+return true;
+}
+/**
+* @return bool
+*/
+public function _openAppend()
+{
+if (filesize($this->_tarname) == 0) {
+return $this->_openWrite();
+}
+if ($this->_compress) {
+$this->_close();
+if (!@rename($this->_tarname, $this->_tarname . ".tmp")) {
+$this->_error(
+'Error while renaming \'' . $this->_tarname
+. '\' to temporary file \'' . $this->_tarname
+. '.tmp\''
+);
+return false;
+}
+if ($this->_compress_type == 'gz') {
+$v_temp_tar = @gzopen($this->_tarname . ".tmp", "rb");
+} elseif ($this->_compress_type == 'bz2') {
+$v_temp_tar = @bzopen($this->_tarname . ".tmp", "r");
+} elseif ($this->_compress_type == 'lzma2') {
+$v_temp_tar = @xzopen($this->_tarname . ".tmp", "r");
+}
+if ($v_temp_tar == 0) {
+$this->_error(
+'Unable to open file \'' . $this->_tarname
+. '.tmp\' in binary read mode'
+);
+@rename($this->_tarname . ".tmp", $this->_tarname);
+return false;
+}
+if (!$this->_openWrite()) {
+@rename($this->_tarname . ".tmp", $this->_tarname);
+return false;
+}
+if ($this->_compress_type == 'gz') {
+$end_blocks = 0;
+while (!@gzeof($v_temp_tar)) {
+$v_buffer = @gzread($v_temp_tar, 512);
+if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
+$end_blocks++;
+// do not copy end blocks, we will re-make them
+// after appending
+continue;
+} elseif ($end_blocks > 0) {
+for ($i = 0; $i < $end_blocks; $i++) {
+$this->_writeBlock(ARCHIVE_TAR_END_BLOCK);
+}
+$end_blocks = 0;
+}
+$v_binary_data = pack("a512", $v_buffer);
+$this->_writeBlock($v_binary_data);
+}
+@gzclose($v_temp_tar);
+} elseif ($this->_compress_type == 'bz2') {
+$end_blocks = 0;
+while (strlen($v_buffer = @bzread($v_temp_tar, 512)) > 0) {
+if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
+$end_blocks++;
+// do not copy end blocks, we will re-make them
+// after appending
+continue;
+} elseif ($end_blocks > 0) {
+for ($i = 0; $i < $end_blocks; $i++) {
+$this->_writeBlock(ARCHIVE_TAR_END_BLOCK);
+}
+$end_blocks = 0;
+}
+$v_binary_data = pack("a512", $v_buffer);
+$this->_writeBlock($v_binary_data);
+}
+@bzclose($v_temp_tar);
+} elseif ($this->_compress_type == 'lzma2') {
+$end_blocks = 0;
+while (strlen($v_buffer = @xzread($v_temp_tar, 512)) > 0) {
+if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
+$end_blocks++;
+// do not copy end blocks, we will re-make them
+// after appending
+continue;
+} elseif ($end_blocks > 0) {
+for ($i = 0; $i < $end_blocks; $i++) {
+$this->_writeBlock(ARCHIVE_TAR_END_BLOCK);
+}
+$end_blocks = 0;
+}
+$v_binary_data = pack("a512", $v_buffer);
+$this->_writeBlock($v_binary_data);
+}
+@xzclose($v_temp_tar);
+}
+if (!@drupal_unlink($this->_tarname . ".tmp")) {
+$this->_error(
+'Error while deleting temporary file \''
+. $this->_tarname . '.tmp\''
+);
+}
+} else {
+// ----- For not compressed tar, just add files before the last
+//       one or two 512 bytes block
+if (!$this->_openReadWrite()) {
+return false;
+}
+clearstatcache();
+$v_size = filesize($this->_tarname);
+// We might have zero, one or two end blocks.
+// The standard is two, but we should try to handle
+// other cases.
+fseek($this->_file, $v_size - 1024);
+if (fread($this->_file, 512) == ARCHIVE_TAR_END_BLOCK) {
+fseek($this->_file, $v_size - 1024);
+} elseif (fread($this->_file, 512) == ARCHIVE_TAR_END_BLOCK) {
+fseek($this->_file, $v_size - 512);
+}
+}
+return true;
+}
+/**
+* @param $p_filelist
+* @param string $p_add_dir
+* @param string $p_remove_dir
+* @return bool
+*/
+public function _append($p_filelist, $p_add_dir = '', $p_remove_dir = '')
+{
+if (!$this->_openAppend()) {
+return false;
+}
+if ($this->_addList($p_filelist, $p_add_dir, $p_remove_dir)) {
+$this->_writeFooter();
+}
+$this->_close();
+return true;
+}
+/**
+* Check if a directory exists and create it (including parent
+* dirs) if not.
+*
+* @param string $p_dir directory to check
+*
+* @return bool true if the directory exists or was created
+*/
+public function _dirCheck($p_dir)
+{
+clearstatcache();
+if ((@is_dir($p_dir)) || ($p_dir == '')) {
+return true;
+}
+$p_parent_dir = dirname($p_dir);
+if (($p_parent_dir != $p_dir) &&
+($p_parent_dir != '') &&
+(!$this->_dirCheck($p_parent_dir))
+) {
+return false;
+}
+if (!@mkdir($p_dir, 0777)) {
+$this->_error("Unable to create directory '$p_dir'");
+return false;
+}
+return true;
+}
+/**
+* Compress path by changing for example "/dir/foo/../bar" to "/dir/bar",
+* rand emove double slashes.
+*
+* @param string $p_dir path to reduce
+*
+* @return string reduced path
+*/
+private function _pathReduction($p_dir)
+{
+$v_result = '';
+// ----- Look for not empty path
+if ($p_dir != '') {
+// ----- Explode path by directory names
+$v_list = explode('/', $p_dir);
+// ----- Study directories from last to first
+for ($i = sizeof($v_list) - 1; $i >= 0; $i--) {
+// ----- Look for current path
+if ($v_list[$i] == ".") {
+// ----- Ignore this directory
+// Should be the first $i=0, but no check is done
+} else {
+if ($v_list[$i] == "..") {
+// ----- Ignore it and ignore the $i-1
+$i--;
+} else {
+if (($v_list[$i] == '')
+&& ($i != (sizeof($v_list) - 1))
+&& ($i != 0)
+) {
+// ----- Ignore only the double '//' in path,
+// but not the first and last /
+} else {
+$v_result = $v_list[$i] . ($i != (sizeof($v_list) - 1) ? '/'
+. $v_result : '');
+}
+}
+}
+}
+}
+if (defined('OS_WINDOWS') && OS_WINDOWS) {
+$v_result = strtr($v_result, '\\', '/');
+}
+return $v_result;
+}
+/**
+* @param $p_path
+* @param bool $p_remove_disk_letter
+* @return string
+*/
+public function _translateWinPath($p_path, $p_remove_disk_letter = true)
+{
+if (defined('OS_WINDOWS') && OS_WINDOWS) {
+// ----- Look for potential disk letter
+if (($p_remove_disk_letter)
+&& (($v_position = strpos($p_path, ':')) != false)
+) {
+$p_path = substr($p_path, $v_position + 1);
+}
+// ----- Change potential windows directory separator
+if ((strpos($p_path, '\\') > 0) || (substr($p_path, 0, 1) == '\\')) {
+$p_path = strtr($p_path, '\\', '/');
+}
+}
+return $p_path;
+}
+}