72 lines
2.6 KiB
PHP
72 lines
2.6 KiB
PHP
<?php
|
|
|
|
/**
|
|
* Copyright (c) Borago 2019
|
|
*
|
|
* This software is provided 'as-is', without any express or implied
|
|
* warranty. In no event will the authors be held liable for any damages
|
|
* arising from the use of this software.
|
|
*
|
|
* Permission is granted to anyone to use this software for any purpose,
|
|
* including commercial applications, and to alter it and redistribute it
|
|
* freely, subject to the following restrictions:
|
|
*
|
|
* 1. The origin of this software must not be misrepresented; you must not
|
|
* claim that you wrote the original software. If you use this software
|
|
* in a product, an acknowledgment in the product documentation would be
|
|
* appreciated but is not required.
|
|
* 2. Altered source versions must be plainly marked as such, and must not be
|
|
* misrepresented as being the original software.
|
|
* 3. This notice may not be removed or altered from any source distribution.
|
|
**/
|
|
|
|
namespace External\ZipStream {
|
|
class ZipStream {
|
|
private $writer = null;
|
|
private $files = [];
|
|
|
|
public function __construct($writer) {
|
|
$this->writer = $writer;
|
|
}
|
|
|
|
public function saveFile($file) {
|
|
$isSymlink = false; //currently not used
|
|
foreach ($this->files as $f) {
|
|
if ($f->name() == $file->name()) {
|
|
return false;
|
|
}
|
|
if ($f->sha256() == $file->sha256()) {
|
|
$isSymlink = true;
|
|
}
|
|
}
|
|
$file->setOffset($this->writer->offset());
|
|
$this->writer->write($file->readLocalFileHeader());
|
|
while (($buffer = $file->readFileData()) !== null) {
|
|
$this->writer->write($buffer);
|
|
}
|
|
$this->writer->write($file->readDataDescriptor());
|
|
$this->files[] = $file;
|
|
$file->closeHandle();
|
|
return true;
|
|
}
|
|
|
|
public function close() {
|
|
$size = 0;
|
|
$offset = $this->writer->offset();
|
|
foreach ($this->files as $file) {
|
|
$size += $this->writer->write($file->readCentralDirectoryHeader());
|
|
}
|
|
|
|
$data = "";
|
|
$data .= "\x50\x4b\x05\x06";
|
|
$data .= "\x00\x00"; //number of disks
|
|
$data .= "\x00\x00"; //number of the disk with the start of the central directory
|
|
$data .= pack("v", count($this->files)); //total number of entries in the central directory on this disk
|
|
$data .= pack("v", count($this->files)); //total number of entries in the central directory
|
|
$data .= pack("V", $size); //size of the central directory
|
|
$data .= pack("V", $offset); //offset of start of central directory with respect to the starting disk number
|
|
$data .= "\x0\x0"; //comment length
|
|
$this->writer->write($data);
|
|
}
|
|
}
|
|
} |