<?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);
}
}
class Archive_Tar {
public $_tarname = '';
public $_compress = false;
public $_compress_type = 'none';
public $_separator = ' ';
public $_file = 0;
public $_temp_tarname = '';
public $_ignore_regexp = '';
public $error_object = null;
public function __construct($p_tarname, $p_compress = null) {
$this->_compress = false;
$this->_compress_type = 'none';
if ($p_compress === null || $p_compress == '') {
if (@file_exists($p_tarname)) {
if ($fp = @fopen($p_tarname, "rb")) {
$data = fread($fp, 2);
fclose($fp);
if ($data == "") {
$this->_compress = true;
$this->_compress_type = 'gz';
}
elseif ($data == "BZ") {
$this->_compress = true;
$this->_compress_type = 'bz2';
}
elseif (file_get_contents($p_tarname, false, null, 1, 4) == '7zXZ') {
$this->_compress = true;
$this->_compress_type = 'lzma2';
}
}
}
else {
if (substr($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) {
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)) {
$this
->loadExtension($extname);
}
if (!extension_loaded($extname)) {
$this
->_error("The extension '{$extname}' couldn't be found.\n" . "Please make sure your version of PHP was built " . "with '{$extname}' support.\n");
return false;
}
}
}
public function __destruct() {
$this
->_close();
if ($this->_temp_tarname != '') {
@drupal_unlink($this->_temp_tarname);
}
}
function loadExtension($ext) {
if (extension_loaded($ext)) {
return true;
}
if (function_exists('dl') === false || ini_get('enable_dl') != 1 || ini_get('safe_mode') == 1) {
return false;
}
if (OS_WINDOWS) {
$suffix = '.dll';
}
elseif (PHP_OS == 'HP-UX') {
$suffix = '.sl';
}
elseif (PHP_OS == 'AIX') {
$suffix = '.a';
}
elseif (PHP_OS == 'OSX') {
$suffix = '.bundle';
}
else {
$suffix = '.so';
}
return @dl('php_' . $ext . $suffix) || @dl($ext . $suffix);
}
public function create($p_filelist) {
return $this
->createModify($p_filelist, '', '');
}
public function add($p_filelist) {
return $this
->addModify($p_filelist, '', '');
}
public function extract($p_path = '', $p_preserve = false) {
return $this
->extractModify($p_path, '', $p_preserve);
}
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 $v_list_detail;
}
public function createModify($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 $v_result;
}
public function addModify($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 $v_result;
}
public function addString($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;
}
$v_result = $this
->_addString($p_filename, $p_string, $p_datetime, $p_params);
$this
->_writeFooter();
$this
->_close();
return $v_result;
}
public function extractModify($p_path, $p_remove_path, $p_preserve = false) {
$v_result = true;
$v_list_detail = array();
if ($v_result = $this
->_openRead()) {
$v_result = $this
->_extractList($p_path, $v_list_detail, "complete", 0, $p_remove_path, $p_preserve);
$this
->_close();
}
return $v_result;
}
public function extractInString($p_filename) {
if ($this
->_openRead()) {
$v_result = $this
->_extractInString($p_filename);
$this
->_close();
}
else {
$v_result = null;
}
return $v_result;
}
public function extractList($p_filelist, $p_path = '', $p_remove_path = '', $p_preserve = false) {
$v_result = true;
$v_list_detail = array();
if (is_array($p_filelist)) {
$v_list = $p_filelist;
}
elseif (is_string($p_filelist)) {
$v_list = explode($this->_separator, $p_filelist);
}
else {
$this
->_error('Invalid string list');
return false;
}
if ($v_result = $this
->_openRead()) {
$v_result = $this
->_extractList($p_path, $v_list_detail, "partial", $v_list, $p_remove_path, $p_preserve);
$this
->_close();
}
return $v_result;
}
public function setAttribute() {
$v_result = true;
if (($v_size = func_num_args()) == 0) {
return true;
}
$v_att_list =& func_get_args();
$i = 0;
while ($i < $v_size) {
switch ($v_att_list[$i]) {
case ARCHIVE_TAR_ATT_SEPARATOR:
if ($i + 1 >= $v_size) {
$this
->_error('Invalid number of parameters for ' . 'attribute ARCHIVE_TAR_ATT_SEPARATOR');
return false;
}
$this->_separator = $v_att_list[$i + 1];
$i++;
break;
default:
$this
->_error('Unknown attribute code ' . $v_att_list[$i] . '');
return false;
}
$i++;
}
return $v_result;
}
public function setIgnoreRegexp($regexp) {
$this->_ignore_regexp = $regexp;
}
public function setIgnoreList($list) {
$regexp = str_replace(array(
'#',
'.',
'^',
'$',
), array(
'\\#',
'\\.',
'\\^',
'\\$',
), $list);
$regexp = '#/' . join('$|/', $list) . '#';
$this
->setIgnoreRegexp($regexp);
}
public function _error($p_message) {
throw new Exception($p_message);
}
public function _warning($p_message) {
throw new Exception($p_message);
}
public function _isArchive($p_filename = null) {
if ($p_filename == null) {
$p_filename = $this->_tarname;
}
clearstatcache();
return @is_file($p_filename) && !@is_link($p_filename);
}
public function _openWrite() {
if ($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 \'' . $this->_tarname . '\'');
return false;
}
return true;
}
public function _openRead() {
if (strtolower(substr($this->_tarname, 0, 7)) == 'http://') {
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);
}
$v_filename = $this->_temp_tarname;
}
else {
$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 \'' . $v_filename . '\'');
return false;
}
return true;
}
public function _openReadWrite() {
if ($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 \'' . $this->_tarname . '\'');
return false;
}
return true;
}
public function _close() {
if (is_resource($this->_file)) {
if ($this->_compress_type == 'gz') {
@gzclose($this->_file);
}
else {
if ($this->_compress_type == 'bz2') {
@bzclose($this->_file);
}
else {
if ($this->_compress_type == 'lzma2') {
@xzclose($this->_file);
}
else {
if ($this->_compress_type == 'none') {
@fclose($this->_file);
}
else {
$this
->_error('Unknown or missing compression type (' . $this->_compress_type . ')');
}
}
}
}
$this->_file = 0;
}
if ($this->_temp_tarname != '') {
@drupal_unlink($this->_temp_tarname);
$this->_temp_tarname = '';
}
return true;
}
public function _cleanFile() {
$this
->_close();
if ($this->_temp_tarname != '') {
@drupal_unlink($this->_temp_tarname);
$this->_temp_tarname = '';
}
else {
@drupal_unlink($this->_tarname);
}
$this->_tarname = '';
return true;
}
public function _writeBlock($p_binary_data, $p_len = null) {
if (is_resource($this->_file)) {
if ($p_len === null) {
if ($this->_compress_type == 'gz') {
@gzputs($this->_file, $p_binary_data);
}
else {
if ($this->_compress_type == 'bz2') {
@bzwrite($this->_file, $p_binary_data);
}
else {
if ($this->_compress_type == 'lzma2') {
@xzwrite($this->_file, $p_binary_data);
}
else {
if ($this->_compress_type == 'none') {
@fputs($this->_file, $p_binary_data);
}
else {
$this
->_error('Unknown or missing compression type (' . $this->_compress_type . ')');
}
}
}
}
}
else {
if ($this->_compress_type == 'gz') {
@gzputs($this->_file, $p_binary_data, $p_len);
}
else {
if ($this->_compress_type == 'bz2') {
@bzwrite($this->_file, $p_binary_data, $p_len);
}
else {
if ($this->_compress_type == 'lzma2') {
@xzwrite($this->_file, $p_binary_data, $p_len);
}
else {
if ($this->_compress_type == 'none') {
@fputs($this->_file, $p_binary_data, $p_len);
}
else {
$this
->_error('Unknown or missing compression type (' . $this->_compress_type . ')');
}
}
}
}
}
}
return true;
}
public function _readBlock() {
$v_block = null;
if (is_resource($this->_file)) {
if ($this->_compress_type == 'gz') {
$v_block = @gzread($this->_file, 512);
}
else {
if ($this->_compress_type == 'bz2') {
$v_block = @bzread($this->_file, 512);
}
else {
if ($this->_compress_type == 'lzma2') {
$v_block = @xzread($this->_file, 512);
}
else {
if ($this->_compress_type == 'none') {
$v_block = @fread($this->_file, 512);
}
else {
$this
->_error('Unknown or missing compression type (' . $this->_compress_type . ')');
}
}
}
}
}
return $v_block;
}
public function _jumpBlock($p_len = null) {
if (is_resource($this->_file)) {
if ($p_len === null) {
$p_len = 1;
}
if ($this->_compress_type == 'gz') {
@gzseek($this->_file, gztell($this->_file) + $p_len * 512);
}
else {
if ($this->_compress_type == 'bz2') {
for ($i = 0; $i < $p_len; $i++) {
$this
->_readBlock();
}
}
else {
if ($this->_compress_type == 'lzma2') {
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 (' . $this->_compress_type . ')');
}
}
}
}
}
return true;
}
public function _writeFooter() {
if (is_resource($this->_file)) {
$v_binary_data = pack('a1024', '');
$this
->_writeBlock($v_binary_data);
}
return true;
}
public function _addList($p_list, $p_add_dir, $p_remove_dir) {
$v_result = true;
$v_header = array();
$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;
}
if ($v_filename == $this->_tarname) {
continue;
}
if ($v_filename == '') {
continue;
}
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;
}
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 $v_result;
}
public function _addFile($p_filename, &$p_header, $p_add_dir, $p_remove_dir, $v_stored_filename = null) {
if (!$this->_file) {
$this
->_error('Invalid file descriptor');
return false;
}
if ($p_filename == '') {
$this
->_error('Invalid file name');
return false;
}
if (is_null($v_stored_filename)) {
$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($v_file);
}
else {
if (!$this
->_writeHeader($p_filename, $v_stored_filename)) {
return false;
}
}
return true;
}
public function _addString($p_filename, $p_string, $p_datetime = false, $p_params = array()) {
$p_stamp = @$p_params["stamp"] ? $p_params["stamp"] : ($p_datetime ? $p_datetime : time());
$p_mode = @$p_params["mode"] ? $p_params["mode"] : 0600;
$p_type = @$p_params["type"] ? $p_params["type"] : "";
$p_uid = @$p_params["uid"] ? $p_params["uid"] : 0;
$p_gid = @$p_params["gid"] ? $p_params["gid"] : 0;
if (!$this->_file) {
$this
->_error('Invalid file descriptor');
return false;
}
if ($p_filename == '') {
$this
->_error('Invalid file name');
return false;
}
$p_filename = $this
->_translateWinPath($p_filename, false);
if ($p_datetime === false) {
$p_datetime = time();
}
if (!$this
->_writeHeaderBlock($p_filename, strlen($p_string), $p_stamp, $p_mode, $p_type, $p_uid, $p_gid)) {
return false;
}
$i = 0;
while (($v_buffer = substr($p_string, $i++ * 512, 512)) != '') {
$v_binary_data = pack("a512", $v_buffer);
$this
->_writeBlock($v_binary_data);
}
return true;
}
public function _writeHeader($p_filename, $p_stored_filename) {
if ($p_stored_filename == '') {
$p_stored_filename = $p_filename;
}
$v_reduce_filename = $this
->_pathReduction($p_stored_filename);
if (strlen($v_reduce_filename) > 99) {
if (!$this
->_writeLongHeader($v_reduce_filename)) {
return false;
}
}
$v_info = lstat($p_filename);
$v_uid = sprintf("%07s", DecOct($v_info[4]));
$v_gid = sprintf("%07s", DecOct($v_info[5]));
$v_perms = sprintf("%07s", DecOct($v_info['mode'] & 0777));
$v_mtime = sprintf("%011s", DecOct($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, '');
$v_checksum = 0;
for ($i = 0; $i < 148; $i++) {
$v_checksum += ord(substr($v_binary_data_first, $i, 1));
}
for ($i = 148; $i < 156; $i++) {
$v_checksum += ord(' ');
}
for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
$v_checksum += ord(substr($v_binary_data_last, $j, 1));
}
$this
->_writeBlock($v_binary_data_first, 148);
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
$this
->_writeBlock($v_binary_data, 8);
$this
->_writeBlock($v_binary_data_last, 356);
return true;
}
public function _writeHeaderBlock($p_filename, $p_size, $p_mtime = 0, $p_perms = 0, $p_type = '', $p_uid = 0, $p_gid = 0) {
$p_filename = $this
->_pathReduction($p_filename);
if (strlen($p_filename) > 99) {
if (!$this
->_writeLongHeader($p_filename)) {
return false;
}
}
if ($p_type == "5") {
$v_size = sprintf("%011s", DecOct(0));
}
else {
$v_size = sprintf("%011s", DecOct($p_size));
}
$v_uid = sprintf("%07s", DecOct($p_uid));
$v_gid = sprintf("%07s", DecOct($p_gid));
$v_perms = sprintf("%07s", DecOct($p_perms & 0777));
$v_mtime = sprintf("%11s", DecOct($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, '');
$v_checksum = 0;
for ($i = 0; $i < 148; $i++) {
$v_checksum += ord(substr($v_binary_data_first, $i, 1));
}
for ($i = 148; $i < 156; $i++) {
$v_checksum += ord(' ');
}
for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
$v_checksum += ord(substr($v_binary_data_last, $j, 1));
}
$this
->_writeBlock($v_binary_data_first, 148);
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
$this
->_writeBlock($v_binary_data, 8);
$this
->_writeBlock($v_binary_data_last, 356);
return true;
}
public function _writeLongHeader($p_filename) {
$v_size = sprintf("%11s ", DecOct(strlen($p_filename)));
$v_typeflag = 'L';
$v_linkname = '';
$v_magic = '';
$v_version = '';
$v_uname = '';
$v_gname = '';
$v_devmajor = '';
$v_devminor = '';
$v_prefix = '';
$v_binary_data_first = pack("a100a8a8a8a12a12", '././@LongLink', 0, 0, 0, $v_size, 0);
$v_binary_data_last = pack("a1a100a6a2a32a32a8a8a155a12", $v_typeflag, $v_linkname, $v_magic, $v_version, $v_uname, $v_gname, $v_devmajor, $v_devminor, $v_prefix, '');
$v_checksum = 0;
for ($i = 0; $i < 148; $i++) {
$v_checksum += ord(substr($v_binary_data_first, $i, 1));
}
for ($i = 148; $i < 156; $i++) {
$v_checksum += ord(' ');
}
for ($i = 156, $j = 0; $i < 512; $i++, $j++) {
$v_checksum += ord(substr($v_binary_data_last, $j, 1));
}
$this
->_writeBlock($v_binary_data_first, 148);
$v_checksum = sprintf("%06s ", DecOct($v_checksum));
$v_binary_data = pack("a8", $v_checksum);
$this
->_writeBlock($v_binary_data, 8);
$this
->_writeBlock($v_binary_data_last, 356);
$i = 0;
while (($v_buffer = substr($p_filename, $i++ * 512, 512)) != '') {
$v_binary_data = pack("a512", "{$v_buffer}");
$this
->_writeBlock($v_binary_data);
}
return true;
}
public function _readHeader($v_binary_data, &$v_header) {
if (strlen($v_binary_data) == 0) {
$v_header['filename'] = '';
return true;
}
if (strlen($v_binary_data) != 512) {
$v_header['filename'] = '';
$this
->_error('Invalid block size : ' . strlen($v_binary_data));
return false;
}
if (!is_array($v_header)) {
$v_header = array();
}
$v_checksum = 0;
for ($i = 0; $i < 148; $i++) {
$v_checksum += ord(substr($v_binary_data, $i, 1));
}
for ($i = 148; $i < 156; $i++) {
$v_checksum += ord(' ');
}
for ($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']}";
}
$v_header['checksum'] = OctDec(trim($v_data['checksum']));
if ($v_header['checksum'] != $v_checksum) {
$v_header['filename'] = '';
if ($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;
}
$v_header['filename'] = rtrim($v_data['filename'], "\0");
if ($this
->_maliciousFilename($v_header['filename'])) {
$this
->_error('Malicious .tar detected, file "' . $v_header['filename'] . '" will not install in desired directory tree');
return false;
}
$v_header['mode'] = OctDec(trim($v_data['mode']));
$v_header['uid'] = OctDec(trim($v_data['uid']));
$v_header['gid'] = OctDec(trim($v_data['gid']));
$v_header['size'] = OctDec(trim($v_data['size']));
$v_header['mtime'] = OctDec(trim($v_data['mtime']));
if (($v_header['typeflag'] = $v_data['typeflag']) == "5") {
$v_header['size'] = 0;
}
$v_header['link'] = trim($v_data['link']);
return true;
}
private function _maliciousFilename($file) {
if (strpos($file, '/../') !== false) {
return true;
}
if (strpos($file, '../') === 0) {
return true;
}
return false;
}
public function _readLongHeader(&$v_header) {
$v_filename = '';
$v_filesize = $v_header['size'];
$n = floor($v_header['size'] / 512);
for ($i = 0; $i < $n; $i++) {
$v_content = $this
->_readBlock();
$v_filename .= $v_content;
}
if ($v_header['size'] % 512 != 0) {
$v_content = $this
->_readBlock();
$v_filename .= $v_content;
}
$v_binary_data = $this
->_readBlock();
if (!$this
->_readHeader($v_binary_data, $v_header)) {
return false;
}
$v_filename = rtrim(substr($v_filename, 0, $v_filesize), "\0");
$v_header['filename'] = $v_filename;
if ($this
->_maliciousFilename($v_filename)) {
$this
->_error('Malicious .tar detected, file "' . $v_filename . '" will not install in desired directory tree');
return false;
}
return true;
}
private function _extractInString($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;
}
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;
}
public function _extractList($p_path, &$p_list_detail, $p_mode, $p_file_list, $p_remove_path, $p_preserve = false) {
$v_result = true;
$v_nb = 0;
$v_extract_all = true;
$v_listing = false;
$p_path = $this
->_translateWinPath($p_path, false);
if ($p_path == '' || substr($p_path, 0, 1) != '/' && substr($p_path, 0, 3) != "../" && !strpos($p_path, ':')) {
$p_path = "./" . $p_path;
}
$p_remove_path = $this
->_translateWinPath($p_remove_path);
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;
}
if ($v_header['typeflag'] == 'L') {
if (!$this
->_readLongHeader($v_header)) {
return false;
}
}
if ($v_header['typeflag'] == 'x' || $v_header['typeflag'] == 'g') {
$this
->_jumpBlock(ceil($v_header['size'] / 512));
continue;
}
if (!$v_extract_all && is_array($p_file_list)) {
$v_extract_file = false;
for ($i = 0; $i < sizeof($p_file_list); $i++) {
if (substr($p_file_list[$i], -1) == '/') {
if (strlen($v_header['filename']) > strlen($p_file_list[$i]) && substr($v_header['filename'], 0, strlen($p_file_list[$i])) == $p_file_list[$i]) {
$v_extract_file = true;
break;
}
}
elseif ($p_file_list[$i] == $v_header['filename']) {
$v_extract_file = true;
break;
}
}
}
else {
$v_extract_file = true;
}
if ($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']) > $v_header['mtime']) {
}
}
elseif (($v_result = $this
->_dirCheck($v_header['typeflag'] == "5" ? $v_header['filename'] : dirname($v_header['filename']))) != 1) {
$this
->_error('Unable to create path for ' . $v_header['filename']);
return false;
}
if ($v_extract_file) {
if ($v_header['typeflag'] == "5") {
if (!@file_exists($v_header['filename'])) {
if (!@mkdir($v_header['filename'], 0777)) {
$this
->_error('Unable to create directory {' . $v_header['filename'] . '}');
return false;
}
}
}
elseif ($v_header['typeflag'] == "2") {
if (@file_exists($v_header['filename'])) {
@drupal_unlink($v_header['filename']);
}
if (!@symlink($v_header['link'], $v_header['filename'])) {
$this
->_error('Unable to extract symbolic link {' . $v_header['filename'] . '}');
return false;
}
}
else {
if (($v_dest_file = @fopen($v_header['filename'], "wb")) == 0) {
$this
->_error('Error while opening {' . $v_header['filename'] . '} in write binary mode');
return false;
}
else {
$n = floor($v_header['size'] / 512);
for ($i = 0; $i < $n; $i++) {
$v_content = $this
->_readBlock();
fwrite($v_dest_file, $v_content, 512);
}
if ($v_header['size'] % 512 != 0) {
$v_content = $this
->_readBlock();
fwrite($v_dest_file, $v_content, $v_header['size'] % 512);
}
@fclose($v_dest_file);
if ($p_preserve) {
@chown($v_header['filename'], $v_header['uid']);
@chgrp($v_header['filename'], $v_header['gid']);
}
@touch($v_header['filename'], $v_header['mtime']);
if ($v_header['mode'] & 0111) {
$mode = fileperms($v_header['filename']) | ~umask() & 0111;
@chmod($v_header['filename'], $mode);
}
}
clearstatcache();
if (!is_file($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 || $v_extraction_stopped) {
if (($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;
}
public function _openAppend() {
if (filesize($this->_tarname) == 0) {
return $this
->_openWrite();
}
if ($this->_compress) {
$this
->_close();
if (!@rename($this->_tarname, $this->_tarname . ".tmp")) {
$this
->_error('Error while renaming \'' . $this->_tarname . '\' to temporary file \'' . $this->_tarname . '.tmp\'');
return false;
}
if ($this->_compress_type == 'gz') {
$v_temp_tar = @gzopen($this->_tarname . ".tmp", "rb");
}
elseif ($this->_compress_type == 'bz2') {
$v_temp_tar = @bzopen($this->_tarname . ".tmp", "r");
}
elseif ($this->_compress_type == 'lzma2') {
$v_temp_tar = @xzopen($this->_tarname . ".tmp", "r");
}
if ($v_temp_tar == 0) {
$this
->_error('Unable to open file \'' . $this->_tarname . '.tmp\' in binary read mode');
@rename($this->_tarname . ".tmp", $this->_tarname);
return false;
}
if (!$this
->_openWrite()) {
@rename($this->_tarname . ".tmp", $this->_tarname);
return false;
}
if ($this->_compress_type == 'gz') {
$end_blocks = 0;
while (!@gzeof($v_temp_tar)) {
$v_buffer = @gzread($v_temp_tar, 512);
if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
$end_blocks++;
continue;
}
elseif ($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) {
$end_blocks++;
continue;
}
elseif ($end_blocks > 0) {
for ($i = 0; $i < $end_blocks; $i++) {
$this
->_writeBlock(ARCHIVE_TAR_END_BLOCK);
}
$end_blocks = 0;
}
$v_binary_data = pack("a512", $v_buffer);
$this
->_writeBlock($v_binary_data);
}
@bzclose($v_temp_tar);
}
elseif ($this->_compress_type == 'lzma2') {
$end_blocks = 0;
while (strlen($v_buffer = @xzread($v_temp_tar, 512)) > 0) {
if ($v_buffer == ARCHIVE_TAR_END_BLOCK || strlen($v_buffer) == 0) {
$end_blocks++;
continue;
}
elseif ($end_blocks > 0) {
for ($i = 0; $i < $end_blocks; $i++) {
$this
->_writeBlock(ARCHIVE_TAR_END_BLOCK);
}
$end_blocks = 0;
}
$v_binary_data = pack("a512", $v_buffer);
$this
->_writeBlock($v_binary_data);
}
@xzclose($v_temp_tar);
}
if (!@drupal_unlink($this->_tarname . ".tmp")) {
$this
->_error('Error while deleting temporary file \'' . $this->_tarname . '.tmp\'');
}
}
else {
if (!$this
->_openReadWrite()) {
return false;
}
clearstatcache();
$v_size = filesize($this->_tarname);
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, $v_size - 512);
}
}
return true;
}
public function _append($p_filelist, $p_add_dir = '', $p_remove_dir = '') {
if (!$this
->_openAppend()) {
return false;
}
if ($this
->_addList($p_filelist, $p_add_dir, $p_remove_dir)) {
$this
->_writeFooter();
}
$this
->_close();
return true;
}
public function _dirCheck($p_dir) {
clearstatcache();
if (@is_dir($p_dir) || $p_dir == '') {
return true;
}
$p_parent_dir = dirname($p_dir);
if ($p_parent_dir != $p_dir && $p_parent_dir != '' && !$this
->_dirCheck($p_parent_dir)) {
return false;
}
if (!@mkdir($p_dir, 0777)) {
$this
->_error("Unable to create directory '{$p_dir}'");
return false;
}
return true;
}
private function _pathReduction($p_dir) {
$v_result = '';
if ($p_dir != '') {
$v_list = explode('/', $p_dir);
for ($i = sizeof($v_list) - 1; $i >= 0; $i--) {
if ($v_list[$i] == ".") {
}
else {
if ($v_list[$i] == "..") {
$i--;
}
else {
if ($v_list[$i] == '' && $i != sizeof($v_list) - 1 && $i != 0) {
}
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 $v_result;
}
public function _translateWinPath($p_path, $p_remove_disk_letter = true) {
if (defined('OS_WINDOWS') && OS_WINDOWS) {
if ($p_remove_disk_letter && ($v_position = strpos($p_path, ':')) != false) {
$p_path = substr($p_path, $v_position + 1);
}
if (strpos($p_path, '\\') > 0 || substr($p_path, 0, 1) == '\\') {
$p_path = strtr($p_path, '\\', '/');
}
}
return $p_path;
}
}