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Syntax Syntax
Source Source
File: wp-admin/includes/class-pclzip.php
function privExtractByRule(&$p_file_list, $p_path, $p_remove_path, $p_remove_all_path, &$p_options)
{
$v_result=1;
// ----- Magic quotes trick
$this->privDisableMagicQuotes();
// ----- Check the path
if ( ($p_path == "")
|| ( (substr($p_path, 0, 1) != "/")
&& (substr($p_path, 0, 3) != "../")
&& (substr($p_path,1,2)!=":/")))
$p_path = "./".$p_path;
// ----- Reduce the path last (and duplicated) '/'
if (($p_path != "./") && ($p_path != "/"))
{
// ----- Look for the path end '/'
while (substr($p_path, -1) == "/")
{
$p_path = substr($p_path, 0, strlen($p_path)-1);
}
}
// ----- Look for path to remove format (should end by /)
if (($p_remove_path != "") && (substr($p_remove_path, -1) != '/'))
{
$p_remove_path .= '/';
}
$p_remove_path_size = strlen($p_remove_path);
// ----- Open the zip file
if (($v_result = $this->privOpenFd('rb')) != 1)
{
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Read the central directory information
$v_central_dir = array();
if (($v_result = $this->privReadEndCentralDir($v_central_dir)) != 1)
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Start at beginning of Central Dir
$v_pos_entry = $v_central_dir['offset'];
// ----- Read each entry
$j_start = 0;
for ($i=0, $v_nb_extracted=0; $i<$v_central_dir['entries']; $i++)
{
// ----- Read next Central dir entry
@rewind($this->zip_fd);
if (@fseek($this->zip_fd, $v_pos_entry))
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
// ----- Error log
PclZip::privErrorLog(PCLZIP_ERR_INVALID_ARCHIVE_ZIP, 'Invalid archive size');
// ----- Return
return PclZip::errorCode();
}
// ----- Read the file header
$v_header = array();
if (($v_result = $this->privReadCentralFileHeader($v_header)) != 1)
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Store the index
$v_header['index'] = $i;
// ----- Store the file position
$v_pos_entry = ftell($this->zip_fd);
// ----- Look for the specific extract rules
$v_extract = false;
// ----- Look for extract by name rule
if ( (isset($p_options[PCLZIP_OPT_BY_NAME]))
&& ($p_options[PCLZIP_OPT_BY_NAME] != 0)) {
// ----- Look if the filename is in the list
for ($j=0; ($j<sizeof($p_options[PCLZIP_OPT_BY_NAME])) && (!$v_extract); $j++) {
// ----- Look for a directory
if (substr($p_options[PCLZIP_OPT_BY_NAME][$j], -1) == "/") {
// ----- Look if the directory is in the filename path
if ( (strlen($v_header['stored_filename']) > strlen($p_options[PCLZIP_OPT_BY_NAME][$j]))
&& (substr($v_header['stored_filename'], 0, strlen($p_options[PCLZIP_OPT_BY_NAME][$j])) == $p_options[PCLZIP_OPT_BY_NAME][$j])) {
$v_extract = true;
}
}
// ----- Look for a filename
elseif ($v_header['stored_filename'] == $p_options[PCLZIP_OPT_BY_NAME][$j]) {
$v_extract = true;
}
}
}
// ----- Look for extract by ereg rule
// ereg() is deprecated with PHP 5.3
/*
else if ( (isset($p_options[PCLZIP_OPT_BY_EREG]))
&& ($p_options[PCLZIP_OPT_BY_EREG] != "")) {
if (ereg($p_options[PCLZIP_OPT_BY_EREG], $v_header['stored_filename'])) {
$v_extract = true;
}
}
*/
// ----- Look for extract by preg rule
else if ( (isset($p_options[PCLZIP_OPT_BY_PREG]))
&& ($p_options[PCLZIP_OPT_BY_PREG] != "")) {
if (preg_match($p_options[PCLZIP_OPT_BY_PREG], $v_header['stored_filename'])) {
$v_extract = true;
}
}
// ----- Look for extract by index rule
else if ( (isset($p_options[PCLZIP_OPT_BY_INDEX]))
&& ($p_options[PCLZIP_OPT_BY_INDEX] != 0)) {
// ----- Look if the index is in the list
for ($j=$j_start; ($j<sizeof($p_options[PCLZIP_OPT_BY_INDEX])) && (!$v_extract); $j++) {
if (($i>=$p_options[PCLZIP_OPT_BY_INDEX][$j]['start']) && ($i<=$p_options[PCLZIP_OPT_BY_INDEX][$j]['end'])) {
$v_extract = true;
}
if ($i>=$p_options[PCLZIP_OPT_BY_INDEX][$j]['end']) {
$j_start = $j+1;
}
if ($p_options[PCLZIP_OPT_BY_INDEX][$j]['start']>$i) {
break;
}
}
}
// ----- Look for no rule, which means extract all the archive
else {
$v_extract = true;
}
// ----- Check compression method
if ( ($v_extract)
&& ( ($v_header['compression'] != 8)
&& ($v_header['compression'] != 0))) {
$v_header['status'] = 'unsupported_compression';
// ----- Look for PCLZIP_OPT_STOP_ON_ERROR
if ( (isset($p_options[PCLZIP_OPT_STOP_ON_ERROR]))
&& ($p_options[PCLZIP_OPT_STOP_ON_ERROR]===true)) {
$this->privSwapBackMagicQuotes();
PclZip::privErrorLog(PCLZIP_ERR_UNSUPPORTED_COMPRESSION,
"Filename '".$v_header['stored_filename']."' is "
."compressed by an unsupported compression "
."method (".$v_header['compression'].") ");
return PclZip::errorCode();
}
}
// ----- Check encrypted files
if (($v_extract) && (($v_header['flag'] & 1) == 1)) {
$v_header['status'] = 'unsupported_encryption';
// ----- Look for PCLZIP_OPT_STOP_ON_ERROR
if ( (isset($p_options[PCLZIP_OPT_STOP_ON_ERROR]))
&& ($p_options[PCLZIP_OPT_STOP_ON_ERROR]===true)) {
$this->privSwapBackMagicQuotes();
PclZip::privErrorLog(PCLZIP_ERR_UNSUPPORTED_ENCRYPTION,
"Unsupported encryption for "
." filename '".$v_header['stored_filename']
."'");
return PclZip::errorCode();
}
}
// ----- Look for real extraction
if (($v_extract) && ($v_header['status'] != 'ok')) {
$v_result = $this->privConvertHeader2FileInfo($v_header,
$p_file_list[$v_nb_extracted++]);
if ($v_result != 1) {
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
$v_extract = false;
}
// ----- Look for real extraction
if ($v_extract)
{
// ----- Go to the file position
@rewind($this->zip_fd);
if (@fseek($this->zip_fd, $v_header['offset']))
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
// ----- Error log
PclZip::privErrorLog(PCLZIP_ERR_INVALID_ARCHIVE_ZIP, 'Invalid archive size');
// ----- Return
return PclZip::errorCode();
}
// ----- Look for extraction as string
if ($p_options[PCLZIP_OPT_EXTRACT_AS_STRING]) {
$v_string = '';
// ----- Extracting the file
$v_result1 = $this->privExtractFileAsString($v_header, $v_string, $p_options);
if ($v_result1 < 1) {
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result1;
}
// ----- Get the only interesting attributes
if (($v_result = $this->privConvertHeader2FileInfo($v_header, $p_file_list[$v_nb_extracted])) != 1)
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Set the file content
$p_file_list[$v_nb_extracted]['content'] = $v_string;
// ----- Next extracted file
$v_nb_extracted++;
// ----- Look for user callback abort
if ($v_result1 == 2) {
break;
}
}
// ----- Look for extraction in standard output
elseif ( (isset($p_options[PCLZIP_OPT_EXTRACT_IN_OUTPUT]))
&& ($p_options[PCLZIP_OPT_EXTRACT_IN_OUTPUT])) {
// ----- Extracting the file in standard output
$v_result1 = $this->privExtractFileInOutput($v_header, $p_options);
if ($v_result1 < 1) {
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result1;
}
// ----- Get the only interesting attributes
if (($v_result = $this->privConvertHeader2FileInfo($v_header, $p_file_list[$v_nb_extracted++])) != 1) {
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Look for user callback abort
if ($v_result1 == 2) {
break;
}
}
// ----- Look for normal extraction
else {
// ----- Extracting the file
$v_result1 = $this->privExtractFile($v_header,
$p_path, $p_remove_path,
$p_remove_all_path,
$p_options);
if ($v_result1 < 1) {
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result1;
}
// ----- Get the only interesting attributes
if (($v_result = $this->privConvertHeader2FileInfo($v_header, $p_file_list[$v_nb_extracted++])) != 1)
{
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
return $v_result;
}
// ----- Look for user callback abort
if ($v_result1 == 2) {
break;
}
}
}
}
// ----- Close the zip file
$this->privCloseFd();
$this->privSwapBackMagicQuotes();
// ----- Return
return $v_result;
}