1
|
|
|
<?php |
2
|
|
|
namespace PHPDaemon\SockJS\Methods; |
3
|
|
|
|
4
|
|
|
use PHPDaemon\Core\Daemon; |
5
|
|
|
use PHPDaemon\Core\Debug; |
6
|
|
|
use PHPDaemon\Utils\Crypt; |
7
|
|
|
|
8
|
|
|
/** |
9
|
|
|
* @package Libraries |
10
|
|
|
* @subpackage SockJS |
11
|
|
|
* @author Vasily Zorin <[email protected]> |
12
|
|
|
*/ |
13
|
|
|
class Iframe extends Generic |
14
|
|
|
{ |
15
|
|
|
protected $version = '1.0.3'; |
16
|
|
|
protected $contentType = 'text/html'; |
17
|
|
|
protected $cacheable = true; |
18
|
|
|
|
19
|
|
|
/** |
20
|
|
|
* Constructor |
21
|
|
|
* @return void |
22
|
|
|
*/ |
23
|
|
|
public function init() |
|
|
|
|
24
|
|
|
{ |
25
|
|
|
parent::init(); |
26
|
|
|
if (isset($this->attrs->version)) { |
27
|
|
|
$this->version = $this->attrs->version; |
28
|
|
|
} |
29
|
|
|
$this->header('Cache-Control: max-age=31536000, public, pre-check=0, post-check=0'); |
30
|
|
|
$this->header('Expires: '.date('r', strtotime('+1 year'))); |
31
|
|
|
$html = '<!DOCTYPE html> |
32
|
|
|
<html> |
33
|
|
|
<head> |
34
|
|
|
<meta http-equiv="X-UA-Compatible" content="IE=edge" /> |
35
|
|
|
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> |
36
|
|
|
<script> |
37
|
|
|
document.domain = document.domain; |
38
|
|
|
_sockjs_onload = function(){SockJS.bootstrap_iframe();}; |
39
|
|
|
</script> |
40
|
|
|
<script src="https://cdn.jsdelivr.net/sockjs/' . htmlentities($this->version, ENT_QUOTES, 'UTF-8').'/sockjs.min.js"></script> |
|
|
|
|
41
|
|
|
</head> |
42
|
|
|
<body> |
43
|
|
|
<h2>Don\'t panic!</h2> |
44
|
|
|
<p>This is a SockJS hidden iframe. It\'s used for cross domain magic.</p> |
45
|
|
|
</body> |
46
|
|
|
</html>'; |
47
|
|
|
$etag = 'W/"'.sha1($html).'"'; |
48
|
|
|
$this->header('ETag: '.$etag); |
49
|
|
|
if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) { |
50
|
|
|
if ($_SERVER['HTTP_IF_NONE_MATCH'] === $etag) { |
51
|
|
|
$this->status(304); |
52
|
|
|
$this->removeHeader('Content-Type'); |
53
|
|
|
$this->finish(); |
54
|
|
|
return; |
55
|
|
|
} |
56
|
|
|
} |
57
|
|
|
$this->header('Content-Length: '.mb_orig_strlen($html)); |
58
|
|
|
echo $html; |
59
|
|
|
$this->finish(); |
60
|
|
|
} |
61
|
|
|
|
62
|
|
|
/** |
63
|
|
|
* Called when request iterated |
64
|
|
|
* @return void |
65
|
|
|
*/ |
66
|
|
|
public function run() |
67
|
|
|
{ |
68
|
|
|
} |
69
|
|
|
} |
70
|
|
|
|
Instead of super-globals, we recommend to explicitly inject the dependencies of your class. This makes your code less dependent on global state and it becomes generally more testable: