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git-svn-id: file:///svn/phpbb/trunk@5377 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Meik Sievertsen 2005-12-25 11:12:03 +00:00
parent b9b70c9ceb
commit 4373cf2f30
1 changed files with 26 additions and 17 deletions
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43
phpBB/includes/functions_compress.php
View file

@ -159,7 +159,7 @@ class compress_zip extends compress
function extract($dst)
{
// Loop the file, looking for files and folders
$ddTry = false;
$dd_try = false;
fseek($this->fp, 0);
while (true)
@ -197,31 +197,36 @@ class compress_zip extends compress
'uc_size' => $file['uc_size'][1],
'offset' => $file['offset']
);
break;
break;
case "\x50\x4b\x01\x02":
fread($this->fp, 24);
fread($this->fp, 12 + current(unpack("v", fread($this->fp, 2))) + current(unpack("v", fread($this->fp, 2))) + current(unpack("v", fread($this->fp, 2))));
break;
break;
// We safely end the loop as we are totally finished with looking for files and folders
case "\x50\x4b\x05\x06":
break 2;
break 2;
// Look for the next signature...
case 'PK00':
continue 2;
continue 2;
// We have encountered a header that is weird. Lets look for better data...
default:
if(!$ddTry)
if (!$dd_try)
{
// Unexpected header. Trying to detect wrong placed 'Data Descriptor';
$ddTry = true;
$dd_try = true;
fseek($this->fp, 8, SEEK_CUR); // Jump over 'crc-32'(4) 'compressed-size'(4), 'uncompressed-size'(4)
continue 2;
}
trigger_error("Unexpected header, ending loop");
break 2;
}
$ddTry = false;
$dd_try = false;
}
if (sizeof($seek_ary))
{
foreach ($seek_ary as $filename => $trash)
@ -232,10 +237,12 @@ class compress_zip extends compress
{
$str = '';
$folders = explode('/', $dirname);
// Create and folders and subfolders if they do not exist
foreach ($folders as $folder)
{
$str = (!empty($str)) ? $str . '/' . $folder : $folder;
if(!is_dir("$dst$str"))
{
if (!@mkdir("$dst$str", 0777))
@ -247,7 +254,7 @@ class compress_zip extends compress
}
}
if(substr($filename, -1, 1) == '/')
if (substr($filename, -1, 1) == '/')
{
continue;
}
@ -255,7 +262,7 @@ class compress_zip extends compress
$target_filename = "$dst$filename";
$fdetails = &$seek_ary[$filename];
if(!$fdetails['uc_size'])
if (!$fdetails['uc_size'])
{
$fp = fopen($target_filename, "w");
fwrite($fp, '');
@ -265,20 +272,22 @@ class compress_zip extends compress
fseek($this->fp, $fdetails['offset']);
$mode = $fdetails['c_method'];
$content = fread($this->fp, $fdetails['c_size']);
switch($mode)
switch ($mode)
{
case 0:
// Not compressed
$fp = fopen($target_filename, "w");
fwrite($fp, $content);
fclose($fp);
break;
break;
case 8:
// Deflate
$fp = fopen($target_filename, "w");
fwrite($fp, gzinflate($content, $fdetails['uc_size']));
fclose($fp);
break;
break;
}
}
}
@ -623,19 +632,19 @@ class compress_tar extends compress
{
case 'tar':
$mimetype = 'application/x-tar';
break;
break;
case 'tar.gz':
$mimetype = 'application/x-gzip';
break;
break;
case 'tar.bz2':
$mimetype = 'application/x-bzip2';
break;
break;
default:
$mimetype = 'application/octet-stream';
break;
break;
}
header('Pragma: no-cache');