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Diffstat (limited to 'web/lib/Archive/Tar.php')
| -rw-r--r-- | web/lib/Archive/Tar.php | 1993 |
1 files changed, 0 insertions, 1993 deletions
diff --git a/web/lib/Archive/Tar.php b/web/lib/Archive/Tar.php deleted file mode 100644 index 32a2ccc..0000000 --- a/web/lib/Archive/Tar.php +++ /dev/null @@ -1,1993 +0,0 @@ -<?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 - */ - -require_once 'PEAR.php'; - -define('ARCHIVE_TAR_ATT_SEPARATOR', 90001); -define('ARCHIVE_TAR_END_BLOCK', pack("a512", '')); - -/** -* 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 $Revision$ -*/ -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=''; - - /** - * @var string regular expression for ignoring files or directories - */ - var $_ignore_regexp=''; - - /** - * @var object PEAR_Error object - */ - var $error_object=null; - - // {{{ 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) - { - $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 { - $this->_error("Unsupported compression type '$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($extname); - } - if (!extension_loaded($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; - } - } - } - // }}} - - // {{{ destructor - function _Archive_Tar() - { - $this->_close(); - // ----- Look for a local copy to delete - if ($this->_temp_tarname != '') - @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='', $p_preserve=false) - { - return $this->extractModify($p_path, '', $p_preserve); - } - // }}} - - // {{{ 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. - * @param int $p_datetime A custom date/time (unix timestamp) - * for the file (optional). - * - * @return true on success, false on error. - * @access public - */ - function addString($p_filename, $p_string, $p_datetime = false) - { - $v_result = true; - - if (!$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); - - $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. - * @param boolean $p_preserve Preserve user/group ownership of files - * - * @return boolean true on success, false on error. - * @access public - * @see extractList() - */ - function extractModify($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; - } - // }}} - - // {{{ 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. - * @param boolean $p_preserve Preserve user/group ownership of files - * - * @return true on success, false on error. - * @access public - * @see extractModify() - */ - function extractList($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; - } - // }}} - - // {{{ 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; - } - // }}} - - // {{{ setIgnoreRegexp() - /** - * This method sets the regular expression for ignoring files and directories - * at import, for example: - * $arch->setIgnoreRegexp("#CVS|\.svn#"); - * - * @param string $regexp regular expression defining which files or directories to ignore - * - * @access public - */ - function setIgnoreRegexp($regexp) - { - $this->_ignore_regexp = $regexp; - } - // }}} - - // {{{ setIgnoreList() - /** - * 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 $list a list of file or directory names to ignore - * - * @access public - */ - function setIgnoreList($list) - { - $regexp = str_replace(array('#', '.', '^', '$'), array('\#', '\.', '\^', '\$'), $list); - $regexp = '#/'.join('$|/', $list).'#'; - $this->setIgnoreRegexp($regexp); - } - // }}} - - // {{{ _error() - function _error($p_message) - { - $this->error_object = &$this->raiseError($p_message); - } - // }}} - - // {{{ _warning() - function _warning($p_message) - { - $this->error_object = &$this->raiseError($p_message); - } - // }}} - - // {{{ _isArchive() - function _isArchive($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' && 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 == '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; - } - // }}} - - // {{{ _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' && 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 == '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; - } - // }}} - - // {{{ _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.')'); - return false; - } - - 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 != '') { - @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 - @unlink($this->_temp_tarname); - $this->_temp_tarname = ''; - } else { - // ----- Remove the local tarname file - @unlink($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, $p_len*512, SEEK_CUR); - 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; - - // ----- 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 $v_result; - } - // }}} - - // {{{ _addFile() - function _addFile($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, $p_datetime = false) - { - if (!$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_datetime, 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); - $v_uid = sprintf("%07s", DecOct($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; - } - // }}} - - // {{{ _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("%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; - } - // }}} - - // {{{ _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 - $v_checksum = sprintf("%06s ", DecOct($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; - } - // }}} - - // {{{ _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)); - - 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'] = $v_data['filename']; - if ($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(); - $v_filename .= trim($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, $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($v_header)) - return false; - } - - if ((!$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'])) { - @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; - } - // }}} - - // {{{ _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') { - $end_blocks = 0; - - while (!@gzeof($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($v_temp_tar); - } - - if (!@unlink($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; - - if (!@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:''); - } - } - } - - if (defined('OS_WINDOWS') && OS_WINDOWS) { - $v_result = strtr($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; - } - // }}} - -} -?> |