File modules/compression/gzip.php

1:	<?php
2:	/**
3:	* Copyright (C) Apis Networks, Inc - All Rights Reserved.
4:	*
5:	* Unauthorized copying of this file, via any medium, is
6:	* strictly prohibited without consent. Any dissemination of
7:	* material herein is prohibited.
8:	*
9:	* For licensing inquiries email <licensing@apisnetworks.com>
10:	*
11:	* Written by Matt Saladna <matt@apisnetworks.com>, May 2017
12:	*/
13:
14:	include_once('tar.php');
15:
16:	/**
17:	* Provides gzip compression/decompression routines in the file manager
18:	*
19:	* @package Compression
20:	*/
21:	class Gzip_Filter extends Tar_Filter
22:	{
23:	public static function extract_files($archive, $destination, array $files = null, array $opts = null)
24:	{
25:	$tar = (substr($archive, -4) == '.tgz' \|\|
26:	substr($archive, -7) == '.tar.gz');
27:	$cmd = 'gzip ' . (!$tar ? '-d' : '-d -c') . ' %s';
28:	$proc = parent::exec(
29:	$cmd,
30:	$archive,
31:	array(0),
32:	array('run' => !$tar)
33:	);
34:
35:	if ($tar) {
36:	return self::extract_files_pipe($archive, $destination, $files, $opts);
37:	}
38:	if ($proc['success']) {
39:	self::$fc->file_delete($archive);
40:	}
41:
42:	return $proc;
43:	}
44:
45:	public static function list_files($archive, array $opts = null)
46:	{
47:	$tar = substr($archive, -4) == '.tgz' \|\|
48:	substr($archive, -7) == '.tar.gz';
49:	$cmd = 'gzip ' . (!$tar ? '-v -l' : '-d -c') . ' %s';
50:	$proc = parent::exec(
51:	$cmd,
52:	$archive,
53:	array(0),
54:	array('run' => !$tar)
55:	);
56:	if ($tar) {
57:	return self::list_files_pipe($archive, $opts);
58:	}
59:
60:
61:	$files = array();
62:	foreach (explode("\n", $proc['output']) as $line) {
63:	if (!preg_match(Regex::FILE_HDR_GZIP, $line, $entry)) {
64:	continue;
65:	}
66:
67:	$files[] = array(
68:	'file_name' => basename($entry['name']),
69:	'file_type' => 'file',
70:	'can_read' => true,
71:	'can_write' => true,
72:	'can_execute' => true,
73:	'size' => $entry['size'],
74:	'packed_size' => $entry['csize'],
75:	'crc' => $entry['crc'],
76:	'link' => 0,
77:	'date' => strtotime($entry['ts'])
78:	);
79:	}
80:
81:	return $files;
82:
83:	}
84:
85:	}
86:
87:	?>
88:

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