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Commit 72b7b68f authored by Uma's avatar Uma
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Zip file corruption is addressed, By deperacting call by reference and... 

Zip file corruption is addressed, By deperacting call by reference and filesize update for proper download
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vtlib/Vtiger/Zip.php
+ 9
− 14
View file @ 72b7b68f
......@@ -18,21 +18,16 @@ class Vtiger_Zip extends dZip {
* Push out the file content for download.
*/
function forceDownload($zipfileName) {
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false);
header("Content-Type: application/zip");
header("Content-Disposition: attachment; filename=".basename($zipfileName).";" );
//header("Content-Transfer-Encoding: binary");
// For details on this workaround check here the ticket
// http://trac.vtiger.com/cgi-bin/trac.cgi/ticket/5298
$disk_file_size = filesize($zipfileName);
$zipfilesize = $disk_file_size + ($disk_file_size % 1024);
header("Content-Length: ".$zipfilesize);
$fileContent = fread(fopen($zipfileName, "rb"), $zipfilesize);
echo $fileContent;
header("Content-Disposition: attachment; filename=".basename($zipfileName).";" );
$disk_file_size = filesize($zipfileName);
header("Content-Length: ".$disk_file_size);
$fileContent = fread(fopen($zipfileName, "rb"), $disk_file_size);
echo $fileContent;
}
/**
......
vtlib/thirdparty/dUnzip2.inc.php
+ 12
− 9
View file @ 72b7b68f
......@@ -87,12 +87,16 @@ class dUnzip2{
var $dirSignatureE= "\x50\x4b\x05\x06"; // end of central dir signature
// Public
Function dUnzip2($fileName){
Function __construct($fileName){
$this->fileName = $fileName;
$this->compressedList =
$this->centralDirList =
$this->endOfCentral = Array();
}
function ensureFh(){
if(!$this->fh)
$this->fh = fopen($this->fileName, "r");
}
Function getList($stopOnFile=false){
if(sizeof($this->compressedList)){
......@@ -101,17 +105,16 @@ class dUnzip2{
}
// Open file, and set file handler
$fh = fopen($this->fileName, "r");
$this->fh = $fh;
if(!$fh){
$this->ensureFh();
if(!$this->fh){
$this->debugMsg(2, "Failed to load file.");
return false;
}
$this->debugMsg(1, "Loading list from 'End of Central Dir' index list...");
if(!$this->_loadFileListByEOF($fh, $stopOnFile)){
if(!$this->_loadFileListByEOF($this->fh, $stopOnFile)){
$this->debugMsg(1, "Failed! Trying to load list looking for signatures...");
if(!$this->_loadFileListBySignatures($fh, $stopOnFile)){
if(!$this->_loadFileListBySignatures($this->fh, $stopOnFile)){
$this->debugMsg(1, "Failed! Could not find any valid header.");
$this->debugMsg(2, "ZIP File is corrupted or empty");
return false;
......@@ -323,7 +326,7 @@ class dUnzip2{
echo "<b style='color: #F00'>dUnzip2:</b> $string<br>";
}
Function _loadFileListByEOF(&$fh, $stopOnFile=false){
Function _loadFileListByEOF($fh, $stopOnFile=false){
// Check if there's a valid Central Dir signature.
// Let's consider a file comment smaller than 1024 characters...
// Actually, it length can be 65536.. But we're not going to support it.
......@@ -433,7 +436,7 @@ class dUnzip2{
}
return false;
}
Function _loadFileListBySignatures(&$fh, $stopOnFile=false){
Function _loadFileListBySignatures($fh, $stopOnFile=false){
fseek($fh, 0);
$return = false;
......@@ -457,7 +460,7 @@ class dUnzip2{
return $return;
}
Function _getFileHeaderInformation(&$fh, $startOffset=false){
Function _getFileHeaderInformation($fh, $startOffset=false){
if($startOffset !== false)
fseek($fh, $startOffset);
......
vtlib/thirdparty/dZip.inc.php
+ 35
− 33
View file @ 72b7b68f
......@@ -15,7 +15,7 @@ class dZip{
var $files_count = 0;
var $fh;
Function dZip($filename, $overwrite=true){
Function __construct($filename, $overwrite=true){
$this->filename = $filename;
$this->overwrite = $overwrite;
}
......@@ -24,9 +24,12 @@ class dZip{
$dirname .= '/';
$this->addFile(false, $dirname, $fileComments);
}
Function addFile($filename, $cfilename, $fileComments='', $data=false){
if(!($fh = $this->fh))
$fh = fopen($this->filename, $this->overwrite?'wb':'a+b');
function ensureFh(){
if(!$this->fh)
$this->fh = fopen($this->filename, $this->overwrite?'wb':'a+b');
}
Function addFile($filename, $cfilename, $fileComments='', $data=false){
$this->ensureFh();
// $filename can be a local file OR the data wich will be compressed
if(substr($cfilename, -1)=='/'){
......@@ -77,21 +80,21 @@ class dZip{
$details['modtime'] = bindec("$lastmod_timeH$lastmod_timeM$lastmod_timeS");
$details['moddate'] = bindec("$lastmod_dateY$lastmod_dateM$lastmod_dateD");
$details['offset'] = ftell($fh);
fwrite($fh, $this->zipSignature);
fwrite($fh, pack('s', $details['vneeded'])); // version_needed
fwrite($fh, pack('s', $details['bitflag'])); // general_bit_flag
fwrite($fh, pack('s', $details['cmethod'])); // compression_method
fwrite($fh, pack('s', $details['modtime'])); // lastmod_time
fwrite($fh, pack('s', $details['moddate'])); // lastmod_date
fwrite($fh, pack('V', $details['crc_32'])); // crc-32
fwrite($fh, pack('I', $details['comsize'])); // compressed_size
fwrite($fh, pack('I', $details['uncsize'])); // uncompressed_size
fwrite($fh, pack('s', strlen($cfilename))); // file_name_length
fwrite($fh, pack('s', 0)); // extra_field_length
fwrite($fh, $cfilename); // file_name
$details['offset'] = ftell($this->fh);
fwrite($this->fh, $this->zipSignature);
fwrite($this->fh, pack('s', $details['vneeded'])); // version_needed
fwrite($this->fh, pack('s', $details['bitflag'])); // general_bit_flag
fwrite($this->fh, pack('s', $details['cmethod'])); // compression_method
fwrite($this->fh, pack('s', $details['modtime'])); // lastmod_time
fwrite($this->fh, pack('s', $details['moddate'])); // lastmod_date
fwrite($this->fh, pack('V', $details['crc_32'])); // crc-32
fwrite($this->fh, pack('I', $details['comsize'])); // compressed_size
fwrite($this->fh, pack('I', $details['uncsize'])); // uncompressed_size
fwrite($this->fh, pack('s', strlen($cfilename))); // file_name_length
fwrite($this->fh, pack('s', 0)); // extra_field_length
fwrite($this->fh, $cfilename); // file_name
// ignoring extra_field
fwrite($fh, $zdata);
fwrite($this->fh, $zdata);
// Append it to central dir
$details['external_attributes'] = (substr($cfilename, -1)=='/'&&!$zdata)?16:32; // Directory or file name
......@@ -103,9 +106,8 @@ class dZip{
$this->centraldirs[$filename][$property] = $value;
}
Function save($zipComments=''){
if(!($fh = $this->fh))
$fh = fopen($this->filename, $this->overwrite?'w':'a+');
$this->ensureFh();
$cdrec = "";
foreach($this->centraldirs as $filename=>$cd){
$cdrec .= $this->dirSignature;
......@@ -128,21 +130,21 @@ class dZip{
$cdrec .= $filename;
$cdrec .= $cd['comments'];
}
$before_cd = ftell($fh);
fwrite($fh, $cdrec);
$before_cd = ftell($this->fh);
fwrite($this->fh, $cdrec);
// end of central dir
fwrite($fh, $this->dirSignatureE);
fwrite($fh, pack('v', 0)); // number of this disk
fwrite($fh, pack('v', 0)); // number of the disk with the start of the central directory
fwrite($fh, pack('v', $this->files_count)); // total # of entries "on this disk"
fwrite($fh, pack('v', $this->files_count)); // total # of entries overall
fwrite($fh, pack('V', strlen($cdrec))); // size of central dir
fwrite($fh, pack('V', $before_cd)); // offset to start of central dir
fwrite($fh, pack('v', strlen($zipComments))); // .zip file comment length
fwrite($fh, $zipComments);
fwrite($this->fh, $this->dirSignatureE);
fwrite($this->fh, pack('v', 0)); // number of this disk
fwrite($this->fh, pack('v', 0)); // number of the disk with the start of the central directory
fwrite($this->fh, pack('v', $this->files_count)); // total # of entries "on this disk"
fwrite($this->fh, pack('v', $this->files_count)); // total # of entries overall
fwrite($this->fh, pack('V', strlen($cdrec))); // size of central dir
fwrite($this->fh, pack('V', $before_cd)); // offset to start of central dir
fwrite($this->fh, pack('v', strlen($zipComments))); // .zip file comment length
fwrite($this->fh, $zipComments);
fclose($fh);
fclose($this->fh);
}
// Private
......
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