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system.tar.inc
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system.tar.inc
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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 1997-2010 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
*/
/**
* Backdrop-specific notes on this port from the original source.
*
* This file origin is Tar.php, release 1.5.0 (stable) with some code
* from PEAR.php, release 1.10.10 (stable) both at http://pear.php.net.
* To simplify future porting from pear of this file, you should not
* do cosmetic or other non significant changes to this file.
* The following changes have been done:
* Removed require_once 'PEAR.php'.
* Added definition of OS_WINDOWS taken from PEAR.php.
* Removed extends PEAR from class.
* Removed call parent:: __construct().
* Changed PEAR::loadExtension($extname) to this->loadExtension($extname).
* Added function loadExtension() taken from PEAR.php.
* Changed all calls of unlink() to backdrop_unlink().
* Changed $this->error_object = &$this->raiseError($p_message)
* to throw new Exception($p_message).
*/
// Backdrop addition Ignore PHP_CodeSniffer warnings/errors for this file.
// phpcs:ignoreFile
// Backdrop removal require_once 'PEAR.php'.
// Backdrop addition OS_WINDOWS as defined in PEAR.php.
if (substr(PHP_OS, 0, 3) == 'WIN') {
define('OS_WINDOWS', true);
} else {
define('OS_WINDOWS', false);
}
define('ARCHIVE_TAR_ATT_SEPARATOR', 90001);
define('ARCHIVE_TAR_END_BLOCK', pack("a512", ''));
if (!function_exists('gzopen') && function_exists('gzopen64')) {
function gzopen($filename, $mode, $use_include_path = 0)
{
return gzopen64($filename, $mode, $use_include_path);
}
}
if (!function_exists('gztell') && function_exists('gztell64')) {
function gztell($zp)
{
return gztell64($zp);
}
}
if (!function_exists('gzseek') && function_exists('gzseek64')) {
function gzseek($zp, $offset, $whence = SEEK_SET)
{
return gzseek64($zp, $offset, $whence);
}
}
/**
* Creates a (compressed) Tar archive
*
* @package Archive_Tar
* @author Vincent Blavet <vincent@phpconcept.net>
* @license http://www.opensource.org/licenses/bsd-license.php New BSD License
* @version $Revision$
*/
// Backdrop change class Archive_Tar extends PEAR.
class Archive_Tar
{
/**
* @var string Name of the Tar
*/
public $_tarname = '';
/**
* @var boolean if true, the Tar file will be gzipped
*/
public $_compress = false;
/**
* @var string Type of compression : 'none', 'gz', 'bz2' or 'lzma2'
*/
public $_compress_type = 'none';
/**
* @var string Explode separator
*/
public $_separator = ' ';
/**
* @var file descriptor
*/
public $_file = 0;
/**
* @var string Local Tar name of a remote Tar (http:// or ftp://)
*/
public $_temp_tarname = '';
/**
* @var string regular expression for ignoring files or directories
*/
public $_ignore_regexp = '';
/**
* @var object PEAR_Error object
*/
public $error_object = null;
/**
* Format for data extraction
*
* @var string
*/
public $_fmt = '';
/**
* @var int Length of the read buffer in bytes
*/
protected $buffer_length;
/**
* Archive_Tar Class constructor. This flavour of the constructor only
* declare a new Archive_Tar object, identifying it by the name of the
* tar file.
* If the compress argument is set the tar will be read or created as a
* gzip or bz2 compressed TAR file.
*
* @param string $p_tarname The name of the tar archive to create
* @param string $p_compress can be null, 'gz', 'bz2' or 'lzma2'. This
* parameter indicates if gzip, bz2 or lzma2 compression
* is required. For compatibility reason the
* boolean value 'true' means 'gz'.
* @param int $buffer_length Length of the read buffer in bytes
*
* @return bool
*/
public function __construct($p_tarname, $p_compress = null, $buffer_length = 512)
{
// Backdrop removal parent::__construct().
$this->_compress = false;
$this->_compress_type = 'none';
if (($p_compress === null) || ($p_compress == '')) {
if (@file_exists($p_tarname)) {
if ($fp = @fopen($p_tarname, "rb")) {
// look for gzip magic cookie
$data = fread($fp, 2);
fclose($fp);
if ($data == "\37\213") {
$this->_compress = true;
$this->_compress_type = 'gz';
// Not sure it's enough for a magic code.
} elseif ($data == "BZ") {
$this->_compress = true;
$this->_compress_type = 'bz2';
} elseif (file_get_contents($p_tarname, false, null, 1, 4) == '7zXZ') {
$this->_compress = true;
$this->_compress_type = 'lzma2';
}
}
} else {
// probably a remote file or some file accessible
// through a stream interface
if (substr($p_tarname, -2) == 'gz') {
$this->_compress = true;
$this->_compress_type = 'gz';
} elseif ((substr($p_tarname, -3) == 'bz2') ||
(substr($p_tarname, -2) == 'bz')
) {
$this->_compress = true;
$this->_compress_type = 'bz2';
} else {
if (substr($p_tarname, -2) == 'xz') {
$this->_compress = true;
$this->_compress_type = 'lzma2';
}
}
}
} else {
if (($p_compress === true) || ($p_compress == 'gz')) {
$this->_compress = true;
$this->_compress_type = 'gz';
} else {
if ($p_compress == 'bz2') {
$this->_compress = true;
$this->_compress_type = 'bz2';
} else {
if ($p_compress == 'lzma2') {
$this->_compress = true;
$this->_compress_type = 'lzma2';
} else {
$this->_error(
"Unsupported compression type '$p_compress'\n" .
"Supported types are 'gz', 'bz2' and 'lzma2'.\n"
);
return false;
}
}
}
}
$this->_tarname = $p_tarname;
if ($this->_compress) { // assert zlib or bz2 or xz extension support
if ($this->_compress_type == 'gz') {
$extname = 'zlib';
} else {
if ($this->_compress_type == 'bz2') {
$extname = 'bz2';
} else {
if ($this->_compress_type == 'lzma2') {
$extname = 'xz';
}
}
}
if (!extension_loaded($extname)) {
// Backdrop change PEAR::loadExtension($extname).
$this->loadExtension($extname);
}
if (!extension_loaded($extname)) {
$this->_error(
"The extension '$extname' couldn't be found.\n" .
"Please make sure your version of PHP was built " .
"with '$extname' support.\n"
);
return false;
}
}
if (version_compare(PHP_VERSION, "5.5.0-dev") < 0) {
$this->_fmt = "a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/" .
"a8checksum/a1typeflag/a100link/a6magic/a2version/" .
"a32uname/a32gname/a8devmajor/a8devminor/a131prefix";
} else {
$this->_fmt = "Z100filename/Z8mode/Z8uid/Z8gid/Z12size/Z12mtime/" .
"Z8checksum/Z1typeflag/Z100link/Z6magic/Z2version/" .
"Z32uname/Z32gname/Z8devmajor/Z8devminor/Z131prefix";
}
$this->buffer_length = $buffer_length;
}
public function __destruct()
{
$this->_close();
// ----- Look for a local copy to delete
if ($this->_temp_tarname != ''&& (bool) preg_match('/^tar[[:alnum:]]*\.tmp$/', $this->_temp_tarname)) {
@backdrop_unlink($this->_temp_tarname);
}
}
// Backdrop addition from PEAR.php.
/**
* OS independent PHP extension load. Remember to take care
* on the correct extension name for case sensitive OSes.
*
* @param string $ext The extension name
* @return bool Success or not on the dl() call
*/
public static function loadExtension($ext)
{
if (extension_loaded($ext)) {
return true;
}
// if either returns true dl() will produce a FATAL error, stop that
if (
function_exists('dl') === false ||
ini_get('enable_dl') != 1
) {
return false;
}
if (OS_WINDOWS) {
$suffix = '.dll';
} elseif (PHP_OS == 'HP-UX') {
$suffix = '.sl';
} elseif (PHP_OS == 'AIX') {
$suffix = '.a';
} elseif (PHP_OS == 'OSX') {
$suffix = '.bundle';
} else {
$suffix = '.so';
}
return @dl('php_'.$ext.$suffix) || @dl($ext.$suffix);
}
/**
* This method creates the archive file and add the files / directories
* that are listed in $p_filelist.
* If a file with the same name exist and is writable, it is replaced
* by the new tar.
* The method return false and a PEAR error text.
* The $p_filelist parameter can be an array of string, each string
* representing a filename or a directory name with their path if
* needed. It can also be a single string with names separated by a
* single blank.
* For each directory added in the archive, the files and
* sub-directories are also added.
* See also createModify() method for more details.
*
* @param array $p_filelist An array of filenames and directory names, or a
* single string with names separated by a single
* blank space.
*
* @return bool true on success, false on error.
* @see createModify()
*/
public function create($p_filelist)
{
return $this->createModify($p_filelist, '', '');
}
/**
* This method add the files / directories that are listed in $p_filelist in
* the archive. If the archive does not exist it is created.
* The method return false and a PEAR error text.
* The files and directories listed are only added at the end of the archive,
* even if a file with the same name is already archived.
* See also createModify() method for more details.
*
* @param array $p_filelist An array of filenames and directory names, or a
* single string with names separated by a single
* blank space.
*
* @return bool true on success, false on error.
* @see createModify()
* @access public
*/
public function add($p_filelist)
{
return $this->addModify($p_filelist, '', '');
}
/**
* @param string $p_path
* @param bool $p_preserve
* @param bool $p_symlinks
* @return bool
*/
public function extract($p_path = '', $p_preserve = false, $p_symlinks = true)
{
return $this->extractModify($p_path, '', $p_preserve, $p_symlinks);
}
/**
* @return array|int
*/
public function listContent()
{
$v_list_detail = array();
if ($this->_openRead()) {
if (!$this->_extractList('', $v_list_detail, "list", '', '')) {
unset($v_list_detail);
$v_list_detail = 0;
}
$this->_close();
}
return $v_list_detail;
}
/**
* This method creates the archive file and add the files / directories
* that are listed in $p_filelist.
* If the file already exists and is writable, it is replaced by the
* new tar. It is a create and not an add. If the file exists and is
* read-only or is a directory it is not replaced. The method return
* false and a PEAR error text.
* The $p_filelist parameter can be an array of string, each string
* representing a filename or a directory name with their path if
* needed. It can also be a single string with names separated by a
* single blank.
* The path indicated in $p_remove_dir will be removed from the
* memorized path of each file / directory listed when this path
* exists. By default nothing is removed (empty path '')
* The path indicated in $p_add_dir will be added at the beginning of
* the memorized path of each file / directory listed. However it can
* be set to empty ''. The adding of a path is done after the removing
* of path.
* The path add/remove ability enables the user to prepare an archive
* for extraction in a different path than the origin files are.
* See also addModify() method for file adding properties.
*
* @param array $p_filelist An array of filenames and directory names,
* or a single string with names separated by
* a single blank space.
* @param string $p_add_dir A string which contains a path to be added
* to the memorized path of each element in
* the list.
* @param string $p_remove_dir A string which contains a path to be
* removed from the memorized path of each
* element in the list, when relevant.
*
* @return boolean true on success, false on error.
* @see addModify()
*/
public function createModify($p_filelist, $p_add_dir, $p_remove_dir = '')
{
$v_result = true;
if (!$this->_openWrite()) {
return false;
}
if ($p_filelist != '') {
if (is_array($p_filelist)) {
$v_list = $p_filelist;
} elseif (is_string($p_filelist)) {
$v_list = explode($this->_separator, $p_filelist);
} else {
$this->_cleanFile();
$this->_error('Invalid file list');
return false;
}
$v_result = $this->_addList($v_list, $p_add_dir, $p_remove_dir);
}
if ($v_result) {
$this->_writeFooter();
$this->_close();
} else {
$this->_cleanFile();
}
return $v_result;
}
/**
* This method add the files / directories listed in $p_filelist at the
* end of the existing archive. If the archive does not yet exists it
* is created.
* The $p_filelist parameter can be an array of string, each string
* representing a filename or a directory name with their path if
* needed. It can also be a single string with names separated by a
* single blank.
* The path indicated in $p_remove_dir will be removed from the
* memorized path of each file / directory listed when this path
* exists. By default nothing is removed (empty path '')
* The path indicated in $p_add_dir will be added at the beginning of
* the memorized path of each file / directory listed. However it can
* be set to empty ''. The adding of a path is done after the removing
* of path.
* The path add/remove ability enables the user to prepare an archive
* for extraction in a different path than the origin files are.
* If a file/dir is already in the archive it will only be added at the
* end of the archive. There is no update of the existing archived
* file/dir. However while extracting the archive, the last file will
* replace the first one. This results in a none optimization of the
* archive size.
* If a file/dir does not exist the file/dir is ignored. However an
* error text is send to PEAR error.
* If a file/dir is not readable the file/dir is ignored. However an
* error text is send to PEAR error.
*
* @param array $p_filelist An array of filenames and directory
* names, or a single string with names
* separated by a single blank space.
* @param string $p_add_dir A string which contains a path to be
* added to the memorized path of each
* element in the list.
* @param string $p_remove_dir A string which contains a path to be
* removed from the memorized path of
* each element in the list, when
* relevant.
*
* @return bool true on success, false on error.
*/
public function addModify($p_filelist, $p_add_dir, $p_remove_dir = '')
{
$v_result = true;
if (!$this->_isArchive()) {
$v_result = $this->createModify(
$p_filelist,
$p_add_dir,
$p_remove_dir
);
} else {
if (is_array($p_filelist)) {
$v_list = $p_filelist;
} elseif (is_string($p_filelist)) {
$v_list = explode($this->_separator, $p_filelist);
} else {
$this->_error('Invalid file list');
return false;
}
$v_result = $this->_append($v_list, $p_add_dir, $p_remove_dir);
}
return $v_result;
}
/**
* This method add a single string as a file at the
* end of the existing archive. If the archive does not yet exists it
* is created.
*
* @param string $p_filename A string which contains the full
* filename path that will be associated
* with the string.
* @param string $p_string The content of the file added in
* the archive.
* @param bool|int $p_datetime A custom date/time (unix timestamp)
* for the file (optional).
* @param array $p_params An array of optional params:
* stamp => the datetime (replaces
* datetime above if it exists)
* mode => the permissions on the
* file (600 by default)
* type => is this a link? See the
* tar specification for details.
* (default = regular file)
* uid => the user ID of the file
* (default = 0 = root)
* gid => the group ID of the file
* (default = 0 = root)
*
* @return bool true on success, false on error.
*/
public function addString($p_filename, $p_string, $p_datetime = false, $p_params = array())
{
$p_stamp = @$p_params["stamp"] ? $p_params["stamp"] : ($p_datetime ? $p_datetime : time());
$p_mode = @$p_params["mode"] ? $p_params["mode"] : 0600;
$p_type = @$p_params["type"] ? $p_params["type"] : "";
$p_uid = @$p_params["uid"] ? $p_params["uid"] : "";
$p_gid = @$p_params["gid"] ? $p_params["gid"] : "";
$v_result = true;
if (!$this->_isArchive()) {
if (!$this->_openWrite()) {
return false;
}
$this->_close();
}
if (!$this->_openAppend()) {
return false;
}
// Need to check the get back to the temporary file ? ....
$v_result = $this->_addString($p_filename, $p_string, $p_datetime, $p_params);
$this->_writeFooter();
$this->_close();
return $v_result;
}
/**
* This method extract all the content of the archive in the directory
* indicated by $p_path. When relevant the memorized path of the
* files/dir can be modified by removing the $p_remove_path path at the
* beginning of the file/dir path.
* While extracting a file, if the directory path does not exists it is
* created.
* While extracting a file, if the file already exists it is replaced
* without looking for last modification date.
* While extracting a file, if the file already exists and is write
* protected, the extraction is aborted.
* While extracting a file, if a directory with the same name already
* exists, the extraction is aborted.
* While extracting a directory, if a file with the same name already
* exists, the extraction is aborted.
* While extracting a file/directory if the destination directory exist
* and is write protected, or does not exist but can not be created,
* the extraction is aborted.
* If after extraction an extracted file does not show the correct
* stored file size, the extraction is aborted.
* When the extraction is aborted, a PEAR error text is set and false
* is returned. However the result can be a partial extraction that may
* need to be manually cleaned.
*
* @param string $p_path The path of the directory where the
* files/dir need to by extracted.
* @param string $p_remove_path Part of the memorized path that can be
* removed if present at the beginning of
* the file/dir path.
* @param boolean $p_preserve Preserve user/group ownership of files
* @param boolean $p_symlinks Allow symlinks.
*
* @return boolean true on success, false on error.
* @see extractList()
*/
public function extractModify($p_path, $p_remove_path, $p_preserve = false, $p_symlinks = true)
{
$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,
$p_symlinks
);
$this->_close();
}
return $v_result;
}
/**
* This method extract from the archive one file identified by $p_filename.
* The return value is a string with the file content, or NULL on error.
*
* @param string $p_filename The path of the file to extract in a string.
*
* @return a string with the file content or NULL.
*/
public function extractInString($p_filename)
{
if ($this->_openRead()) {
$v_result = $this->_extractInString($p_filename);
$this->_close();
} else {
$v_result = null;
}
return $v_result;
}
/**
* This method extract from the archive only the files indicated in the
* $p_filelist. These files are extracted in the current directory or
* in the directory indicated by the optional $p_path parameter.
* If indicated the $p_remove_path can be used in the same way as it is
* used in extractModify() method.
*
* @param array $p_filelist An array of filenames and directory names,
* or a single string with names separated
* by a single blank space.
* @param string $p_path The path of the directory where the
* files/dir need to by extracted.
* @param string $p_remove_path Part of the memorized path that can be
* removed if present at the beginning of
* the file/dir path.
* @param boolean $p_preserve Preserve user/group ownership of files
* @param boolean $p_symlinks Allow symlinks.
*
* @return bool true on success, false on error.
* @see extractModify()
*/
public function extractList($p_filelist, $p_path = '', $p_remove_path = '', $p_preserve = false, $p_symlinks = true)
{
$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,
$p_symlinks
);
$this->_close();
}
return $v_result;
}
/**
* This method set specific attributes of the archive. It uses a variable
* list of parameters, in the format attribute code + attribute values :
* $arch->setAttribute(ARCHIVE_TAR_ATT_SEPARATOR, ',');
*
* @return bool true on success, false on error.
*/
public function setAttribute()
{
$v_result = true;
// ----- Get the number of variable list of arguments
if (($v_size = func_num_args()) == 0) {
return true;
}
// ----- Get the arguments
$v_att_list = func_get_args();
// ----- Read the attributes
$i = 0;
while ($i < $v_size) {
// ----- Look for next option
switch ($v_att_list[$i]) {
// ----- Look for options that request a string value
case ARCHIVE_TAR_ATT_SEPARATOR :
// ----- Check the number of parameters
if (($i + 1) >= $v_size) {
$this->_error(
'Invalid number of parameters for '
. 'attribute ARCHIVE_TAR_ATT_SEPARATOR'
);
return false;
}
// ----- Get the value
$this->_separator = $v_att_list[$i + 1];
$i++;
break;
default :
$this->_error('Unknown attribute code ' . $v_att_list[$i] . '');
return false;
}
// ----- Next attribute
$i++;
}
return $v_result;
}
/**
* This method sets the regular expression for ignoring files and directories
* at import, for example:
* $arch->setIgnoreRegexp("#CVS|\.svn#");
*
* @param string $regexp regular expression defining which files or directories to ignore
*/
public function setIgnoreRegexp($regexp)
{
$this->_ignore_regexp = $regexp;
}
/**
* This method sets the regular expression for ignoring all files and directories
* matching the filenames in the array list at import, for example:
* $arch->setIgnoreList(array('CVS', '.svn', 'bin/tool'));
*
* @param array $list a list of file or directory names to ignore
*
* @access public
*/
public function setIgnoreList($list)
{
$list = str_replace(array('#', '.', '^', '$'), array('\#', '\.', '\^', '\$'), $list);
$regexp = '#/' . join('$|/', $list) . '#';
$this->setIgnoreRegexp($regexp);
}
/**
* @param string $p_message
*/
public function _error($p_message)
{
// Backdrop change $this->error_object = $this->raiseError($p_message).
throw new Exception($p_message);
}
/**
* @param string $p_message
*/
public function _warning($p_message)
{
// Backdrop change $this->error_object = $this->raiseError($p_message).
throw new Exception($p_message);
}
/**
* @param string $p_filename
* @return bool
*/
public function _isArchive($p_filename = null)
{
if ($p_filename == null) {
$p_filename = $this->_tarname;
}
clearstatcache();
return @is_file($p_filename) && !@is_link($p_filename);
}
/**
* @return bool
*/
public function _openWrite()
{
if ($this->_compress_type == 'gz' && function_exists('gzopen')) {
$this->_file = @gzopen($this->_tarname, "wb9");
} else {
if ($this->_compress_type == 'bz2' && function_exists('bzopen')) {
$this->_file = @bzopen($this->_tarname, "w");
} else {
if ($this->_compress_type == 'lzma2' && function_exists('xzopen')) {
$this->_file = @xzopen($this->_tarname, 'w');
} else {
if ($this->_compress_type == 'none') {
$this->_file = @fopen($this->_tarname, "wb");
} else {
$this->_error(
'Unknown or missing compression type ('
. $this->_compress_type . ')'
);
return false;
}
}
}
}
if ($this->_file == 0) {
$this->_error(
'Unable to open in write mode \''
. $this->_tarname . '\''
);
return false;
}
return true;
}
/**
* @return bool
*/
public function _openRead()
{
if (strtolower(substr($this->_tarname, 0, 7)) == 'http://') {
// ----- Look if a local copy need to be done
if ($this->_temp_tarname == '') {
$this->_temp_tarname = uniqid('tar') . '.tmp';
if (!$v_file_from = @fopen($this->_tarname, 'rb')) {
$this->_error(
'Unable to open in read mode \''
. $this->_tarname . '\''
);
$this->_temp_tarname = '';
return false;
}
if (!$v_file_to = @fopen($this->_temp_tarname, 'wb')) {
$this->_error(
'Unable to open in write mode \''
. $this->_temp_tarname . '\''
);
$this->_temp_tarname = '';
return false;
}
while ($v_data = @fread($v_file_from, 1024)) {
@fwrite($v_file_to, $v_data);
}
@fclose($v_file_from);
@fclose($v_file_to);
}
// ----- File to open if the local copy
$v_filename = $this->_temp_tarname;
} else {
// ----- File to open if the normal Tar file
$v_filename = $this->_tarname;
}
if ($this->_compress_type == 'gz' && function_exists('gzopen')) {
$this->_file = @gzopen($v_filename, "rb");
} else {
if ($this->_compress_type == 'bz2' && function_exists('bzopen')) {
$this->_file = @bzopen($v_filename, "r");
} else {
if ($this->_compress_type == 'lzma2' && function_exists('xzopen')) {
$this->_file = @xzopen($v_filename, "r");
} else {
if ($this->_compress_type == 'none') {
$this->_file = @fopen($v_filename, "rb");
} else {
$this->_error(
'Unknown or missing compression type ('
. $this->_compress_type . ')'
);
return false;
}
}
}
}
if ($this->_file == 0) {
$this->_error('Unable to open in read mode \'' . $v_filename . '\'');
return false;
}
return true;
}
/**
* @return bool
*/
public function _openReadWrite()
{
if ($this->_compress_type == 'gz') {
$this->_file = @gzopen($this->_tarname, "r+b");
} else {
if ($this->_compress_type == 'bz2') {
$this->_error(
'Unable to open bz2 in read/write mode \''
. $this->_tarname . '\' (limitation of bz2 extension)'
);
return false;
} else {
if ($this->_compress_type == 'lzma2') {
$this->_error(
'Unable to open lzma2 in read/write mode \''
. $this->_tarname . '\' (limitation of lzma2 extension)'
);
return false;
} else {
if ($this->_compress_type == 'none') {
$this->_file = @fopen($this->_tarname, "r+b");
} else {
$this->_error(
'Unknown or missing compression type ('
. $this->_compress_type . ')'
);
return false;
}
}
}
}
if ($this->_file == 0) {
$this->_error(
'Unable to open in read/write mode \''
. $this->_tarname . '\''
);
return false;
}
return true;
}
/**
* @return bool
*/
public function _close()
{
//if (isset($this->_file)) {
if (is_resource($this->_file)) {
if ($this->_compress_type == 'gz') {
@gzclose($this->_file);
} else {
if ($this->_compress_type == 'bz2') {
@bzclose($this->_file);
} else {