Просмотр файла lib/unzip.lib.php

<?PHP
class SimpleUnzip {
var $Comment = '';
var $Entries = array();
var $Name = '';
var $Size = 0;
var $Time = 0;
function SimpleUnzip($in_FileName = '') {
if($in_FileName !== '') {
SimpleUnzip::ReadFile($in_FileName);
}
}
function Count() {
return count($this->Entries);
}
function GetData($in_Index) {
return $this->Entries[$in_Index]->Data;
}
function GetEntry($in_Index) {
return $this->Entries[$in_Index];
}
function GetError($in_Index) {
return $this->Entries[$in_Index]->Error;
}
function GetErrorMsg($in_Index) {
return $this->Entries[$in_Index]->ErrorMsg;
}
function GetName($in_Index) {
return $this->Entries[$in_Index]->Name;
}
function GetPath($in_Index) {
return $this->Entries[$in_Index]->Path;
}
function GetTime($in_Index) {
return $this->Entries[$in_Index]->Time;
}
function ReadFile($in_FileName) {
$this->Entries = array();
$this->Name = $in_FileName;
$this->Time = filemtime($in_FileName);
$this->Size = filesize($in_FileName);
$oF = fopen($in_FileName, 'rb');
$vZ = fread($oF, $this->Size);
fclose($oF);
$aE = explode("\x50\x4b\x05\x06", $vZ);
$aP = unpack('x16/v1CL', $aE[1]);
$this->Comment = substr($aE[1], 18, $aP['CL']);
$this->Comment = strtr($this->Comment, array("\r\n" => "\n",
 "\r"   => "\n"));
$aE = explode("\x50\x4b\x01\x02", $vZ);
$aE = explode("\x50\x4b\x03\x04", $aE[0]);
array_shift($aE);
foreach($aE as $vZ) {
$aI = array();
$aI['E']  = 0;
$aI['EM'] = '';
$aP = unpack('v1VN/v1GPF/v1CM/v1FT/v1FD/V1CRC/V1CS/V1UCS/v1FNL', $vZ);
$bE = ($aP['GPF'] && 0x0001) ? TRUE : FALSE;
$nF = $aP['FNL'];
if($aP['GPF'] & 0x0008) {
$aP1 = unpack('V1CRC/V1CS/V1UCS', substr($vZ, -12));
$aP['CRC'] = $aP1['CRC'];
$aP['CS']  = $aP1['CS'];
$aP['UCS'] = $aP1['UCS'];
$vZ = substr($vZ, 0, -12);
}
$aI['N'] = substr($vZ, 26, $nF);
if(substr($aI['N'], -1) == '/') {
continue;
}
$aI['P'] = dirname($aI['N']);
$aI['P'] = $aI['P'] == '.' ? '' : $aI['P'];
$aI['N'] = basename($aI['N']);
$vZ = substr($vZ, 26 + $nF);
if(strlen($vZ) != $aP['CS']) {
  $aI['E']  = 1;
  $aI['EM'] = 'Compressed size is not equal with the value in header information.';
}
else {
if($bE) {
$aI['E']  = 5;
$aI['EM'] = 'File is encrypted, which is not supported from this class.';
}
else {
switch($aP['CM']) {
case 0:
break;
case 8:
$vZ = gzinflate($vZ);
break;
case 12:
if(! extension_loaded('bz2')) {
if(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {
@dl('php_bz2.dll');
}
else {
@dl('bz2.so');
}
}
if(extension_loaded('bz2')) {
$vZ = bzdecompress($vZ);
}
else {
$aI['E']  = 7;
$aI['EM'] = "PHP BZIP2 extension not available.";
}
break;
default:
$aI['E']  = 6;
$aI['EM'] = "De-/Compression method {$aP['CM']} is not supported.";
}
if(! $aI['E']) {
if($vZ === FALSE) {
$aI['E']  = 2;
$aI['EM'] = 'Decompression of data failed.';
}
else {
if(strlen($vZ) != $aP['UCS']) {
$aI['E']  = 3;
$aI['EM'] = 'Uncompressed size is not equal with the value in header information.';
}
else {
if(crc32($vZ) != $aP['CRC']) {
$aI['E']  = 4;
$aI['EM'] = 'CRC32 checksum is not equal with the value in header information.';
}
}
}
}
}
}
$aI['D'] = $vZ;
$aI['T'] = mktime(($aP['FT']  & 0xf800) >> 11,
($aP['FT']  & 0x07e0) >>  5,
($aP['FT']  & 0x001f) <<  1,
($aP['FD']  & 0x01e0) >>  5,
($aP['FD']  & 0x001f),
(($aP['FD'] & 0xfe00) >>  9) + 1980);
$this->Entries[] = &new SimpleUnzipEntry($aI);
}
return $this->Entries;
}
}
class SimpleUnzipEntry {
var $Data = '';
var $Error = 0;
var $ErrorMsg = '';
var $Name = '';
var $Path = '';
var $Time = 0;
function SimpleUnzipEntry($in_Entry) {
$this->Data = $in_Entry['D'];
$this->Error= $in_Entry['E'];
$this->ErrorMsg = $in_Entry['EM'];
$this->Name = $in_Entry['N'];
$this->Path = $in_Entry['P'];
$this->Time = $in_Entry['T'];
}
}
?>