mirror_html/h5ai
1
0
Fork 0
mirror of https://github.com/lrsjng/h5ai.git synced 2025-03-24 06:20:07 +01:00
Code Issues Projects Releases Wiki Activity

Refactors php_tar.

Browse Source
This commit is contained in:
Lars Jung 2013-07-20 14:47:34 +02:00
parent cc42a48f74
commit 8d06364046
1 changed files with 17 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
src/_h5ai/server/php/inc/Archive.php
View File

@ -94,69 +94,47 @@ class Archive {
private function php_tar_dirheader($archived_dir) {
$name = substr(basename($archived_dir), -99);
$prefix = substr(normalize_path(dirname($archived_dir)), -154);
if ($prefix === '.') {
$prefix = '';
}
$dir_header =
str_pad($name, 100, "\0") // filename [100]
. "0000755\0" // file mode [8]
. "0000000\0" // uid [8]
. "0000000\0" // gid [8]
. "00000000000\0" // file size [12]
. "00000000000\0" // file modification time [12]
. " " // checksum [8]
. "5" // file type [1]
. str_repeat("\0", 100) // linkname [100]
. "ustar\0" // magic [6]
. "00" // version [2]
. str_repeat("\0", 80) // uname, gname, defmajor, devminor [32 + 32 + 8 + 8] ?92?
. str_pad($prefix, 155, "\0") // filename [155]
. str_repeat("\0", 12); // fill [12]
assert(strlen($dir_header) === 512);
// checksum
$checksum = array_sum(array_map('ord', str_split($dir_header)));
$checksum = str_pad(decoct($checksum), 6, "0", STR_PAD_LEFT) . "\0 ";
$dir_header = substr_replace($dir_header, $checksum, 148, 8);
return $dir_header;
return $this->php_tar_header($archived_dir, 0, 0, 5);
}
private function php_tar_fileheader($real_file, $archived_file) {
$name = substr(basename($archived_file), -99);
$prefix = substr(normalize_path(dirname($archived_file)), -154);
return $this->php_tar_header($archived_file, @filesize($real_file), @filemtime($real_file), 0);
}
private function php_tar_header($filename, $size, $mtime, $type) {
$name = substr(basename($filename), -99);
$prefix = substr(normalize_path(dirname($filename)), -154);
if ($prefix === '.') {
$prefix = '';
}
$file_header =
$header =
str_pad($name, 100, "\0") // filename [100]
. "0000755\0" // file mode [8]
. "0000000\0" // uid [8]
. "0000000\0" // gid [8]
. str_pad(decoct(@filesize($real_file)), 11, "0", STR_PAD_LEFT) . "\0" // file size [12]
. str_pad(decoct(@filemtime($real_file)), 11, "0", STR_PAD_LEFT) . "\0" // file modification time [12]
. str_pad(decoct($size), 11, "0", STR_PAD_LEFT) . "\0" // file size [12]
. str_pad(decoct($mtime), 11, "0", STR_PAD_LEFT) . "\0" // file modification time [12]
. " " // checksum [8]
. "0" // file type [1]
. str_pad($type, 1) // file type [1]
. str_repeat("\0", 100) // linkname [100]
. "ustar\0" // magic [6]
. "00" // version [2]
. str_repeat("\0", 80) // uname, gname, defmajor, devminor [32 + 32 + 8 + 8] ?92?
. str_pad($prefix, 155, "\0") // filename [155]
. str_repeat("\0", 12); // fill [12]
assert(strlen($file_header) === 512);
assert(strlen($header) === 512);
// checksum
$checksum = array_sum(array_map('ord', str_split($file_header)));
$checksum = array_sum(array_map('ord', str_split($header)));
$checksum = str_pad(decoct($checksum), 6, "0", STR_PAD_LEFT) . "\0 ";
$file_header = substr_replace($file_header, $checksum, 148, 8);
$header = substr_replace($header, $checksum, 148, 8);
return $file_header;
return $header;
}