????
Your IP : 3.144.105.101
<?php
if(!defined('ABSPATH')){
die('HACKING ATTEMPT');
}
class backuply_tar{
var $_tarname = '';
var $_compress = false;
var $_compress_type = 'none';
var $_separator = ',';
var $_file = 0;
var $_temp_tarname = '';
var $_ignore_regexp = '';
var $error_object = null;
var $_local_tar = ''; // The local file
var $_orig_tar = ''; // The remote file
var $remote_fp = ''; // The remote file pointer
var $remote_fp_filter = NULL;
var $remote_hctx = NULL;
var $remote_content_size = 0;
function __construct($p_tarname, $p_compress = null, $handle_remote = false){
$this->_compress = false;
$this->_compress_type = 'none';
if (($p_compress === null) || ($p_compress == '')) {
if (@file_exists($p_tarname) && !is_dir($p_tarname)) {
if ($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 _backuply_tar()
{
$this->_close();
// ----- Look for a local copy to delete
if ($this->_temp_tarname != '')
@unlink($this->_temp_tarname);
// In case of REMOTE
if(!empty($this->_orig_tar) && empty($GLOBALS['end_file'])){
unlink($this->_local_tar);
}
}
// }}}
function __destruct(){
$this->_backuply_tar();
}
// {{{ create()
function create($p_filelist)
{
return $this->createModify($p_filelist, '', '');
}
// }}}
// {{{ add()
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 $v_list_detail;
}
// }}}
// {{{ createModify()
function createModify($p_filelist, $p_add_dir, $p_remove_dir='')
{
$v_result = true;
if (!$this->_openWrite())
return false;
// Backup the Softaculous pre list (e.g. softsql.sql)
if(!empty($GLOBALS['pre_soft_list'])){
$GLOBALS['doing_soft_files'] = 1;
$v_result = $this->_addList($GLOBALS['pre_soft_list'], $p_add_dir, $p_remove_dir);
$GLOBALS['doing_soft_files'] = 0;
}
if ($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) {
// --- write footer only if end file is empty..
if(empty($GLOBALS['end_file'])){
// Add the Softaculous post files i.e. softperms.txt at the end
if(!empty($GLOBALS['post_soft_list'])){
$GLOBALS['doing_soft_files'] = 1;
$v_result = $this->_addList($GLOBALS['post_soft_list'], $p_add_dir, $p_remove_dir);
$GLOBALS['doing_soft_files'] = 0;
}
if($v_result){
$this->_writeFooter();
}
}
$this->_close();
} else
$this->_cleanFile();
return $v_result;
}
// }}}
// {{{ addModify()
function addModify($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 $v_result;
}
// }}}
// {{{ addString()
function addString($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 $v_result;
}
// }}}
// {{{ extractModify()
function extractModify($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 $v_result;
}
// }}}
// {{{ extractInString()
function extractInString($p_filename)
{
if ($this->_openRead()) {
$v_result = $this->_extractInString($p_filename);
$this->_close();
} else {
$v_result = null;
}
return $v_result;
}
// }}}
// {{{ extractList()
function extractList($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()
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 $v_result;
}
// }}}
// {{{ setIgnoreRegexp()
function setIgnoreRegexp($regexp)
{
$this->_ignore_regexp = $regexp;
}
// }}}
// {{{ setIgnoreList()
function setIgnoreList($list)
{
$regexp = str_replace(array('#', '.', '^', '$'), array('\#', '\.', '\^', '\$'), $list);
$regexp = '#/'.join('$|/', $list).'#';
$this->setIgnoreRegexp($regexp);
}
// }}}
// {{{ _error()
function _error($p_message)
{
//we have changed this since PEAR is not used
//$this->error_object = &$this->raiseError($p_message);
backuply_status_log($p_message);
}
// }}}
// {{{ _warning()
function _warning($p_message)
{
//we have changed this since PEAR is not used
//$this->error_object = &$this->raiseError($p_message);
backuply_status_log($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, "ab9"); //added 'a' for append as 'w' mode truncated the file...
}
else if ($this->_compress_type == 'bz2' && function_exists('bzopen'))
{
$this->_file = @bzopen($this->_tarname, "w");
echo 'bz+';
}
else if ($this->_compress_type == 'none')
{
$this->_file = @fopen($this->_tarname, "ab");
echo 'ez+';
}
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')
$this->_file = @gzopen($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 != '') {
@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, $finished = false)
{
if (is_resource($this->_file)) {
if ($p_len === null) {
if ($this->_compress_type == 'gz')
$write = @gzputs($this->_file, $p_binary_data);
else if ($this->_compress_type == 'bz2')
$write = @bzwrite($this->_file, $p_binary_data);
else if ($this->_compress_type == 'none')
$write = @fputs($this->_file, $p_binary_data);
else
$this->_error('Unknown or missing compression type ('.$this->_compress_type.')');
} else {
if ($this->_compress_type == 'gz')
$write = @gzputs($this->_file, $p_binary_data, $p_len);
else if ($this->_compress_type == 'bz2')
$write = @bzwrite($this->_file, $p_binary_data, $p_len);
else if ($this->_compress_type == 'none')
$write = @fputs($this->_file, $p_binary_data, $p_len);
else
$this->_error('Unknown or missing compression type ('.$this->_compress_type.')');
}
if(empty($write)){
$this->_error('Failed to write to the backup file. Please check you have enough disk quota available.');
return false;
}
// If there is anything to handle for remote uploads
$this->remote_write_handle($finished);
}
return true;
}
// }}}
function remote_write_handle($finished = false){
global $error;
// Do we have a remote file ?
if(empty($this->_orig_tar)){
return false;
}
clearstatcache();
// Now is the size exceeding 2 MB
if(!$finished && filesize($this->_local_tar) < 2097152){
return false;
}
// Open the file pointer if not opened
if(!is_resource($this->remote_fp)){
$this->remote_fp = fopen($this->_orig_tar, 'ab');
if($this->remote_fp == false){
$error['fopen_failed'] = 'Unable to open in write mode';
backuply_die('fopen_failed');
}
/* // GZip Header
fputs($this->remote_fp, "\x1F\x8B\x08\x08".pack("V", time())."\0\xFF");
// Filename
$oname = str_replace("\0", '', ltrim(basename($this->_orig_tar, '.gz'), '.'));
fwrite($this->remote_fp, $oname."\0", 1+strlen($oname));
// Create Stream
$this->remote_fp_filter = stream_filter_append($this->remote_fp, "zlib.deflate", STREAM_FILTER_WRITE, -1);
$this->remote_hctx = hash_init('crc32b');*/
$this->remote_content_size = 0;
if(!empty($GLOBALS['init_pos'])){
$this->remote_content_size = $GLOBALS['init_pos'];
}
$GLOBALS['start_pos'] = $this->remote_content_size;
}
// Close the LOCAL file
$this->_close();
// Write to remote
$content = file_get_contents($this->_local_tar);
$clen = strlen($content);
if(!empty($content)){
//hash_update($this->remote_hctx, $content); // Update Hash
fwrite($this->remote_fp, $content, $clen); // Write to the stream
$this->remote_content_size += $clen; // Update Length
}
$content = '';
// Delete Local file
@unlink($this->_local_tar);
// ReOpen the local tar
$this->_openWrite();
// If we are done, lets delete this file
if($finished){
/* // Remove Stream
stream_filter_remove($this->remote_fp_filter);
// Calculate Hash and write it
$crc = hash_final($this->remote_hctx, true);
@fwrite($this->remote_fp, $crc[3].$crc[2].$crc[1].$crc[0], 4);
// Also the size
@fwrite($this->remote_fp, pack("V", $this->remote_content_size), 4); */
// Close
@fclose($this->remote_fp);
}
}
// {{{ _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
$v_binary_data = pack('a1024', '');
if(!$this->_writeBlock($v_binary_data, null, true)){
return false;
}
}
return true;
}
// }}}
// {{{ _addList()
function _addList($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;
}
// ----- break the loop once last file is found...
if(!empty($GLOBALS['end_file'])){
break;
}
// ----- Add the file or directory header
if (!$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;
}
$p_temp_list = array();
while (false !== ($p_hitem = readdir($p_hdir))) {
if (($p_hitem != '.') && ($p_hitem != '..')) {
if ($v_filename != "."){
//Double slashes were added and caused issue when the backup directory is inside the installation directory.
$v_filename = $this->cleanpath($v_filename);
$p_temp_list[0] = $v_filename.'/'.$p_hitem;
}else{
$p_temp_list[0] = $p_hitem;
}
// ----- break the loop once last file is found...
if(!empty($GLOBALS['end_file'])){
break;
}
$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) {
global $backuply;
// check last file and skip the files that have been already backed up...
if(!empty($GLOBALS['last_file']) && $GLOBALS['start'] == 0){
if(preg_match('#^'.$GLOBALS['last_file'].'$#', $p_filename)){
$GLOBALS['start'] = 1; // give a jump start once the last backed up file is found..
}
return true; //return true to skip files
}
if (!$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, $p_remove_dir) == 0) {
return true;
}
// Match filename to be excluded as provided by script
foreach($backuply['excludes']['exact'] as $ek => $ev) {
if(empty($GLOBALS['doing_soft_files']) && !empty($ev) && preg_match('#^'.$ev.'#', $p_filename)) {
return true;
}
}
// Exclude the sql file if it has already been backedup
if(strpos($p_filename, 'softsql.sql') !== FALSE && empty($GLOBALS['doing_soft_files'])){
return true;
}
$home_path = backuply_cleanpath(WP_CONTENT_DIR);
// Checks if the the file we are excluding is in WP CONTENT DIR
if(strpos($p_filename, $home_path) !== FALSE){
/* The str_replace below will change the Path to this /plugins/backuply-pro/init.php
* as we just want to exclude the folders or files inside WP Content
*/
$rel_path = str_replace($home_path, '', $p_filename);
// Excluding files with specific extension
if(!empty($backuply['excludes']['extension'])){
$ext = pathinfo($p_filename, PATHINFO_EXTENSION);
if(in_array($ext, $backuply['excludes']['extension'])){
return true;
}
}
// Excluding a pattern that starts with
if(!empty($backuply['excludes']['beginning'])){
foreach($backuply['excludes']['beginning'] as $beginning){
// Here it checks if the pattern we are looking for has slash(/) before it then its the start of the name of the folder or file
preg_match('/\/'.preg_quote(trim($beginning)).'/', $rel_path, $matches);
if(!empty($matches) && strpos($rel_path, 'softsql.sql') == FALSE){
return true;
}
}
}
// Excluding a pattern that ends with
if(!empty($backuply['excludes']['end'])){
$matches = [];
foreach($backuply['excludes']['end'] as $end){
/* Here it checks if the pattern we are looking for has slash(/) after it then its the end of the name of the folder or file
* /(?:wp\/|wp$)/ this is the regex used and wp is the word that we are matching
*/
preg_match('/(?:' . preg_quote(trim($end)).'\/|' . preg_quote(trim($end)). '$)/', $rel_path, $matches);
if(!empty($matches) && strpos($rel_path, 'softsql.sql') == FALSE){
return true;
}
}
}
// Excluding a pattern that is anywhere in the path
if(!empty($backuply['excludes']['anywhere'])){
$matches = [];
foreach($backuply['excludes']['anywhere'] as $pattern){
// Here it checks if the pattern we are looking for is present anywhere in the path
preg_match('/'.preg_quote(trim($pattern)). '/', $rel_path, $matches);
if(!empty($matches) && strpos($rel_path, 'softsql.sql') == FALSE){
return true;
}
}
}
}
if ($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);
backuply_backup_stop_checkpoint();
// mt_rand to reduce the number of folder in log
if(is_dir($p_filename) && mt_rand(0,1)) {
backuply_status_log('Adding (L'.$backuply['status']['loop'].') : ' . $p_filename, 'adding', 65);
}
if ($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)){
$this->_warning('Unable to write header "'.$p_filename . '"');
return false;
}
while (($v_buffer = fread($v_file, 512)) != '') {
$v_binary_data = pack('a512', "$v_buffer");
if(!$this->_writeBlock($v_binary_data)){
$this->_warning('Unable to write Block "'.$p_filename . '"');
return false;
}
}
fclose($v_file);
} else {
// ----- Only header for dir
if (!$this->_writeHeader($p_filename, $v_stored_filename)){
$this->_warning('Unable to writeHeader "'.$p_filename . '"');
return false;
}
}
// We can run the scripts for the end time already set
if(time() >= $GLOBALS['end']){
$GLOBALS['end_file'] = $p_filename; // set end file so that we know where to start from
}
return true;
}
// }}}
// {{{ _addString()
function _addString($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', $v_buffer);
if(!$this->_writeBlock($v_binary_data)) {
return false;
}
}
return true;
}
// }}}
// {{{ _writeHeader()
function _writeHeader($p_filename, $p_stored_filename)
{
if ($p_stored_filename == '')
$p_stored_filename = $p_filename;
$v_reduce_filename = $this->_pathReduction($p_stored_filename);
//echo $v_reduce_filename." - ";
$v_reduce_filename = str_replace($GLOBALS['replace']['from'], $GLOBALS['replace']['to'], $v_reduce_filename);
//echo $v_reduce_filename."<br />";
if (strlen($v_reduce_filename) > 99) {
if (!$this->_writeLongHeader($v_reduce_filename))
return false;
}
// We have to write the entries in softperms.txt
if (isset($GLOBALS['bfh']['softperms']) && preg_match('/'.preg_quote($GLOBALS['replace']['from']['softpath'], '/').'/is', $p_filename)) {
fwrite($GLOBALS['bfh']['softperms'], trim($v_reduce_filename, '/')." ".(!empty($v_linkname) ? "linkto=".rtrim($v_linkname, '/')." " : ""). (substr(sprintf('%o', fileperms($p_filename)), -4)) ."\n");
}
// To make sure we have the correct data after the file is written above
clearstatcache();
$v_info = lstat($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_linkname = ''; // This is empty because we will create symlinks with our restore utility using softperms.txt
$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,$j,1));
// ----- Write the first 148 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_first, 148)){
return false;
}
// ----- Write the calculated checksum
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
if(!$this->_writeBlock($v_binary_data, 8)){
return false;
}
// ----- Write the last 356 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_last, 356)){
return false;
}
return true;
}
// }}}
// {{{ _writeHeaderBlock()
function _writeHeaderBlock($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,$j,1));
// ----- Write the first 148 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_first, 148)){
return false;
}
// ----- Write the calculated checksum
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
if(!$this->_writeBlock($v_binary_data, 8)){
return false;
}
// ----- Write the last 356 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_last, 356)){
return false;
}
return true;
}
// }}}
// {{{ _writeLongHeader()
function _writeLongHeader($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,$j,1));
// ----- Write the first 148 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_first, 148)){
return false;
}
// ----- Write the calculated checksum
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
if(!$this->_writeBlock($v_binary_data, 8)){
return false;
}
// ----- Write the last 356 bytes of the header in the archive
if(!$this->_writeBlock($v_binary_data_last, 356)){
return false;
}
// ----- 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");
if(!$this->_writeBlock($v_binary_data)){
return false;
}
}
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']);
return true;
}
// }}}
// {{{ _maliciousFilename()
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 "' . $v_filename .
'" will not install in desired directory tree');
return false;
}
return true;
}
// }}}
// {{{ _extractInString()
function _extractInString($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'],
$p_remove_path_size);
if (($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'])) {
//We cannot use $globals['ofc'] here and after restoring the files we are anyways changing the file's permissions according to the perms file. Therefore, using 0644/0755 directly here shouldn't be an issue.
if(is_dir($v_header['filename'])){
$chmod = chmod($v_header['filename'], 0755);
}else{
$chmod = chmod($v_header['filename'], 0644);
}
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)));
}
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 = '/';
// Only if we are to return the list i.e. in listContent() then we fill full $v_header else we just need the count
$p_list_detail[$v_nb++] = (!empty($v_listing) ? $v_header : '');
if (is_array($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; $i++) {
if(!$this->_writeBlock(ARCHIVE_TAR_END_BLOCK)){
return false;
}
}
$end_blocks = 0;
}
$v_binary_data = pack("a512", $v_buffer);
if(!$this->_writeBlock($v_binary_data)){
return false;
}
}
@gzclose($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; $i++) {
if(!$this->_writeBlock(ARCHIVE_TAR_END_BLOCK)){
return false;
}
}
$end_blocks = 0;
}
$v_binary_data = pack("a512", $v_buffer);
if(!$this->_writeBlock($v_binary_data)){
return false;
}
}
@bzclose($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();
$this->_close();
return true;
}
// }}}
// {{{ _dirCheck()
function _dirCheck($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()
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 $p_path;
}
// }}}
function cleanpath($path){
$path = str_replace('\\\\', '/', $path);
$path = str_replace('\\', '/', $path);
return rtrim($path, '/');
}
}