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+<?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 1997-2008 The Authors
+ * @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+ * @version CVS: Id: Tar.php,v 1.43 2008/10/30 17:58:42 dufuz Exp
+ * @link http://pear.php.net/package/Archive_Tar
+ */
+
+//require_once 'PEAR.php';
+//
+//
+define ('ARCHIVE_TAR_ATT_SEPARATOR', 90001);
+define ('ARCHIVE_TAR_END_BLOCK', pack("a512", ''));
+
+/**
+* Creates a (compressed) Tar archive
+*
+* @author Vincent Blavet <vincent@phpconcept.net>
+* @version Revision: 1.43
+* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
+* @package Archive_Tar
+*/
+class Archive_Tar // extends PEAR
+{
+ /**
+ * @var string Name of the Tar
+ */
+ var $_tarname='';
+
+ /**
+ * @var boolean if true, the Tar file will be gzipped
+ */
+ var $_compress=false;
+
+ /**
+ * @var string Type of compression : 'none', 'gz' or 'bz2'
+ */
+ var $_compress_type='none';
+
+ /**
+ * @var string Explode separator
+ */
+ var $_separator=' ';
+
+ /**
+ * @var file descriptor
+ */
+ var $_file=0;
+
+ /**
+ * @var string Local Tar name of a remote Tar (http:// or ftp://)
+ */
+ var $_temp_tarname='';
+
+ // {{{ constructor
+ /**
+ * 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 $p_compress can be null, 'gz' or 'bz2'. This
+ * parameter indicates if gzip or bz2 compression
+ * is required. For compatibility reason the
+ * boolean value 'true' means 'gz'.
+ * @access public
+ */
+// function Archive_Tar($p_tarname, $p_compress = null)
+ function __construct($p_tarname, $p_compress = null)
+ {
+// $this->PEAR();
+ $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;
+ $this->_compress_type = 'bz2';
+ }
+ }
+ } else {
+ // probably a remote file or some file accessible
+ // through a stream interface
+ if (substr($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;
+ $this->_compress_type = 'bz2';
+ }
+ }
+ } else {
+ if (($p_compress === true) || ($p_compress == 'gz')) {
+ $this->_compress = true;
+ $this->_compress_type = 'gz';
+ } else if ($p_compress == 'bz2') {
+ $this->_compress = true;
+ $this->_compress_type = 'bz2';
+ } else {
+ die("Unsupported compression type '$p_compress'\n".
+ "Supported types are 'gz' and 'bz2'.\n");
+ return false;
+ }
+ }
+ $this->_tarname = $p_tarname;
+ if ($this->_compress) { // assert zlib or bz2 extension support
+ if ($this->_compress_type == 'gz')
+ $extname = 'zlib';
+ else if ($this->_compress_type == 'bz2')
+ $extname = 'bz2';
+
+ if (!extension_loaded($extname)) {
+// PEAR::loadExtension($extname);
+ $this->loadExtension($extname);
+ }
+ if (!extension_loaded($extname)) {
+ die("The extension '$extname' couldn't be found.\n".
+ "Please make sure your version of PHP was built ".
+ "with '$extname' support.\n");
+ return false;
+ }
+ }
+ }
+ // }}}
+
+ /**
+ * OS independent PHP extension load. Remember to take care
+ * on the correct extension name for case sensitive OSes.
+ * The function is the copy of PEAR::loadExtension().
+ *
+ * @param string $ext The extension name
+ * @return bool Success or not on the dl() call
+ */
+ function loadExtension($ext)
+ {
+ if (!extension_loaded($ext)) {
+ // if either returns true dl() will produce a FATAL error, stop that
+ if ((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);
+ }
+
+ return true;
+ }
+
+
+ // {{{ destructor
+// function _Archive_Tar()
+ function __destruct()
+ {
+ $this->_close();
+ // ----- Look for a local copy to delete
+ if ($this->_temp_tarname != '')
+ @drupal_unlink($this->_temp_tarname);
+// $this->_PEAR();
+ }
+ // }}}
+
+ // {{{ create()
+ /**
+ * 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 $p_filelist An array of filenames and directory names, or a
+ * single string with names separated by a single
+ * blank space.
+ * @return true on success, false on error.
+ * @see createModify()
+ * @access public
+ */
+ function create($p_filelist)
+ {
+ return $this->createModify($p_filelist, '', '');
+ }
+ // }}}
+
+ // {{{ add()
+ /**
+ * 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 $p_filelist An array of filenames and directory names, or a
+ * single string with names separated by a single
+ * blank space.
+ * @return true on success, false on error.
+ * @see createModify()
+ * @access public
+ */
+ function add($p_filelist)
+ {
+ return $this->addModify($p_filelist, '', '');
+ }
+ // }}}
+
+ // {{{ extract()
+ function extract($p_path='')
+ {
+ return $this->extractModify($p_path, '');
+ }
+ // }}}
+
+ // {{{ listContent()
+ 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;
+ }
+ // }}}
+
+ // {{{ createModify()
+ /**
+ * 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 $p_remove_dir A string which contains a path to be
+ * removed from the memorized path of each
+ * element in the list, when relevant.
+ * @return boolean true on success, false on error.
+ * @access public
+ * @see addModify()
+ */
+ function createModify($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;
+ }
+ // }}}
+
+ // {{{ addModify()
+ /**
+ * 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 $p_remove_dir A string which contains a path to be
+ * removed from the memorized path of
+ * each element in the list, when
+ * relevant.
+ * @return true on success, false on error.
+ * @access public
+ */
+ function addModify($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;
+ }
+ // }}}
+
+ // {{{ addString()
+ /**
+ * 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 $p_string The content of the file added in
+ * the archive.
+ * @return true on success, false on error.
+ * @access public
+ */
+ function addString($p_filename, $p_string)
+ {
+ $v_result = true;
+
+ if (!$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);
+
+ $this->_writeFooter();
+
+ $this->_close();
+
+ return $v_result;
+ }
+ // }}}
+
+ // {{{ extractModify()
+ /**
+ * 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 $p_remove_path Part of the memorized path that can be
+ * removed if present at the beginning of
+ * the file/dir path.
+ * @return boolean true on success, false on error.
+ * @access public
+ * @see extractList()
+ */
+ function extractModify($p_path, $p_remove_path)
+ {
+ $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);
+ $this->_close();
+ }
+
+ return $v_result;
+ }
+ // }}}
+
+ // {{{ extractInString()
+ /**
+ * 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 $p_filename The path of the file to extract in a string.
+ * @return a string with the file content or NULL.
+ * @access public
+ */
+ function extractInString($p_filename)
+ {
+ if ($this->_openRead()) {
+ $v_result = $this->_extractInString($p_filename);
+ $this->_close();
+ } else {
+ $v_result = NULL;
+ }
+
+ return $v_result;
+ }
+ // }}}
+
+ // {{{ extractList()
+ /**
+ * 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 $p_remove_path Part of the memorized path that can be
+ * removed if present at the beginning of
+ * the file/dir path.
+ * @return true on success, false on error.
+ * @access public
+ * @see extractModify()
+ */
+ function extractList($p_filelist, $p_path='', $p_remove_path='')
+ {
+ $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);
+ $this->_close();
+ }
+
+ return $v_result;
+ }
+ // }}}
+
+ // {{{ setAttribute()
+ /**
+ * 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, ',');
+ * @param mixed $argv variable list of attributes and values
+ * @return true on success, false on error.
+ * @access 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 :
+ $this->_error('Unknow attribute code '.$v_att_list[$i].'');
+ return false;
+ }
+
+ // ----- Next attribute
+ $i++;
+ }
+
+ return $v_result;
+ }
+ // }}}
+
+ // {{{ _error()
+ function _error($p_message)
+ {
+ // ----- To be completed
+// $this->raiseError($p_message);
+ throw new Exception($p_message);
+ }
+ // }}}
+
+ // {{{ _warning()
+ function _warning($p_message)
+ {
+ // ----- To be completed
+// $this->raiseError($p_message);
+ throw new Exception($p_message);
+ }
+ // }}}
+
+ // {{{ _isArchive()
+ function _isArchive($p_filename=NULL)
+ {
+ if ($p_filename == NULL) {
+ $p_filename = $this->_tarname;
+ }
+ clearstatcache();
+ return @is_file($p_filename) && !@is_link($p_filename);
+ }
+ // }}}
+
+ // {{{ _openWrite()
+ function _openWrite()
+ {
+ if ($this->_compress_type == 'gz')
+ $this->_file = @gzopen($this->_tarname, "wb9");
+ else if ($this->_compress_type == 'bz2')
+ $this->_file = @bzopen($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.')');
+
+ if ($this->_file == 0) {
+ $this->_error('Unable to open in write mode \''
+ .$this->_tarname.'\'');
+ return false;
+ }
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _openRead()
+ 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')
+ $this->_file = @gzopen($v_filename, "rb");
+ else if ($this->_compress_type == 'bz2')
+ $this->_file = @bzopen($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.')');
+
+ if ($this->_file == 0) {
+ $this->_error('Unable to open in read mode \''.$v_filename.'\'');
+ return false;
+ }
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _openReadWrite()
+ 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 == 'none')
+ $this->_file = @fopen($this->_tarname, "r+b");
+ else
+ $this->_error('Unknown or missing compression type ('
+ .$this->_compress_type.')');
+
+ if ($this->_file == 0) {
+ $this->_error('Unable to open in read/write mode \''
+ .$this->_tarname.'\'');
+ return false;
+ }
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _close()
+ 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 ($this->_compress_type == 'none')
+ @fclose($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;
+ }
+ // }}}
+
+ // {{{ _cleanFile()
+ 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);
+ }
+ $this->_tarname = '';
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _writeBlock()
+ function _writeBlock($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 == '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 == 'none')
+ @fputs($this->_file, $p_binary_data, $p_len);
+ else
+ $this->_error('Unknown or missing compression type ('
+ .$this->_compress_type.')');
+
+ }
+ }
+ return true;
+ }
+ // }}}
+
+ // {{{ _readBlock()
+ 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 == 'none')
+ $v_block = @fread($this->_file, 512);
+ else
+ $this->_error('Unknown or missing compression type ('
+ .$this->_compress_type.')');
+ }
+ return $v_block;
+ }
+ // }}}
+
+ // {{{ _jumpBlock()
+ function _jumpBlock($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 == 'none')
+ @fseek($this->_file, ftell($this->_file)+($p_len*512));
+ else
+ $this->_error('Unknown or missing compression type ('
+ .$this->_compress_type.')');
+
+ }
+ return true;
+ }
+ // }}}
+
+ // {{{ _writeFooter()
+ 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;
+ }
+ // }}}
+
+ // {{{ _addList()
+ 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;
+
+ if (!file_exists($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 $v_result;
+ }
+ // }}}
+
+ // {{{ _addFile()
+ function _addFile($p_filename, &$p_header, $p_add_dir, $p_remove_dir)
+ {
+ if (!$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);;
+ $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, $v_stored_filename))
+ return false;
+ }
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _addString()
+ function _addString($p_filename, $p_string)
+ {
+ if (!$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 (!$this->_writeHeaderBlock($p_filename, strlen($p_string),
+ time(), 384, "", 0, 0))
+ 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;
+ }
+ // }}}
+
+ // {{{ _writeHeader()
+ 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);
+ $v_uid = sprintf("%6s ", DecOct($v_info[4]));
+ $v_gid = sprintf("%6s ", DecOct($v_info[5]));
+ $v_perms = sprintf("%6s ", DecOct($v_info['mode']));
+
+ $v_mtime = sprintf("%11s", DecOct($v_info['mode']));
+
+ $v_linkname = '';
+
+ if (@is_link($p_filename)) {
+ $v_typeflag = '2';
+ $v_linkname = readlink($p_filename);
+ $v_size = sprintf("%11s ", DecOct(0));
+ } elseif (@is_dir($p_filename)) {
+ $v_typeflag = "5";
+ $v_size = sprintf("%11s ", DecOct(0));
+ } else {
+ $v_typeflag = '';
+ clearstatcache();
+ $v_size = sprintf("%11s ", DecOct($v_info['size']));
+ }
+
+ $v_magic = '';
+
+ $v_version = '';
+
+ $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
+ $v_checksum = sprintf("%6s ", DecOct($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;
+ }
+ // }}}
+
+ // {{{ _writeHeaderBlock()
+ 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("%11s ", DecOct(0));
+ } else {
+ $v_size = sprintf("%11s ", DecOct($p_size));
+ }
+
+ $v_uid = sprintf("%6s ", DecOct($p_uid));
+ $v_gid = sprintf("%6s ", DecOct($p_gid));
+ $v_perms = sprintf("%6s ", DecOct($p_perms));
+
+ $v_mtime = sprintf("%11s", DecOct($p_mtime));
+
+ $v_linkname = '';
+
+ $v_magic = '';
+
+ $v_version = '';
+
+ $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
+ $v_checksum = sprintf("%6s ", DecOct($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;
+ }
+ // }}}
+
+ // {{{ _writeLongHeader()
+ 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
+ $v_checksum = sprintf("%6s ", DecOct($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;
+ }
+ // }}}
+
+ // {{{ _readHeader()
+ 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));
+
+ $v_data = unpack("a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/"
+ ."a8checksum/a1typeflag/a100link/a6magic/a2version/"
+ ."a32uname/a32gname/a8devmajor/a8devminor",
+ $v_binary_data);
+
+ // ----- 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
+ $v_header['filename'] = trim($v_data['filename']);
+ 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;
+ }
+ // }}}
+
+ // {{{ _maliciousFilename()
+ /**
+ * Detect and report a malicious file name
+ *
+ * @param string $file
+ * @return bool
+ * @access private
+ */
+ function _maliciousFilename($file)
+ {
+ if (strpos($file, '/../') !== false) {
+ return true;
+ }
+ if (strpos($file, '../') === 0) {
+ return true;
+ }
+ return false;
+ }
+ // }}}
+
+ // {{{ _readLongHeader()
+ function _readLongHeader(&$v_header)
+ {
+ $v_filename = '';
+ $n = floor($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;
+
+ $v_filename = trim($v_filename);
+ $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;
+ }
+ // }}}
+
+ // {{{ _extractInString()
+ /**
+ * 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 $p_filename The path of the file to extract in a string.
+ * @return a string with the file content or NULL.
+ * @access private
+ */
+ function _extractInString($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;
+ }
+ // }}}
+
+ // {{{ _extractList()
+ function _extractList($p_path, &$p_list_detail, $p_mode,
+ $p_file_list, $p_remove_path)
+ {
+ $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($v_header))
+ return false;
+ }
+
+ if ((!$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'],
+ $p_remove_path_size);
+ if (($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($v_header['filename'])) {
+ // Drupal integration.
+ // Changed the code to use drupal_mkdir() instead of mkdir().
+ if (!@drupal_mkdir($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($v_dest_file);
+
+ // ----- Change the file mode, mtime
+ @touch($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'], $mode);
+ }
+ }
+
+ // ----- Check the file size
+ clearstatcache();
+ if (filesize($v_header['filename']) != $v_header['size']) {
+ $this->_error('Extracted file '.$v_header['filename']
+ .' does not have the correct file size \''
+ .filesize($v_header['filename'])
+ .'\' ('.$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;
+ }
+ // }}}
+
+ // {{{ _openAppend()
+ 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");
+
+ 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') {
+ while (!@gzeof($v_temp_tar)) {
+ $v_buffer = @gzread($v_temp_tar, 512);
+ if ($v_buffer == ARCHIVE_TAR_END_BLOCK) {
+ // do not copy end blocks, we will re-make them
+ // after appending
+ continue;
+ }
+ $v_binary_data = pack("a512", $v_buffer);
+ $this->_writeBlock($v_binary_data);
+ }
+
+ @gzclose($v_temp_tar);
+ }
+ elseif ($this->_compress_type == 'bz2') {
+ while (strlen($v_buffer = @bzread($v_temp_tar, 512)) > 0) {
+ if ($v_buffer == ARCHIVE_TAR_END_BLOCK) {
+ continue;
+ }
+ $v_binary_data = pack("a512", $v_buffer);
+ $this->_writeBlock($v_binary_data);
+ }
+
+ @bzclose($v_temp_tar);
+ }
+
+ if (!@drupal_unlink($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, $v_size - 512);
+ }
+ }
+
+ return true;
+ }
+ // }}}
+
+ // {{{ _append()
+ function _append($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;
+ }
+ // }}}
+
+ // {{{ _dirCheck()
+
+ /**
+ * Check if a directory exists and create it (including parent
+ * dirs) if not.
+ *
+ * @param string $p_dir directory to check
+ *
+ * @return bool TRUE if the directory exists or was created
+ */
+ function _dirCheck($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;
+
+ // Drupal integration.
+ // Changed the code to use drupal_mkdir() instead of mkdir().
+ if (!@drupal_mkdir($p_dir, 0777)) {
+ $this->_error("Unable to create directory '$p_dir'");
+ return false;
+ }
+
+ return true;
+ }
+
+ // }}}
+
+ // {{{ _pathReduction()
+
+ /**
+ * Compress path by changing for example "/dir/foo/../bar" to "/dir/bar",
+ * rand emove double slashes.
+ *
+ * @param string $p_dir path to reduce
+ *
+ * @return string reduced path
+ *
+ * @access private
+ *
+ */
+ function _pathReduction($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:'');
+ }
+ }
+ }
+ $v_result = strtr($v_result, '\\', '/');
+ return $v_result;
+ }
+
+ // }}}
+
+ // {{{ _translateWinPath()
+ function _translateWinPath($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;
+ }
+ // }}}
+
+}
+?>