|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
/** |
|
4
|
|
|
* ownCloud |
|
5
|
|
|
* |
|
6
|
|
|
* @author Thomas Müller |
|
7
|
|
|
* @copyright 2014 Thomas Müller [email protected] |
|
8
|
|
|
* |
|
9
|
|
|
* You should have received a copy of the GNU Affero General Public |
|
10
|
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>. |
|
11
|
|
|
* |
|
12
|
|
|
*/ |
|
13
|
|
|
|
|
14
|
|
|
namespace OCA\Mail\Service\HtmlPurify; |
|
15
|
|
|
|
|
16
|
|
|
use HTMLPurifier_Config; |
|
17
|
|
|
use HTMLPurifier_URI; |
|
18
|
|
|
use HTMLPurifier_URIFilter; |
|
19
|
|
|
use HTMLPurifier_URIParser; |
|
20
|
|
|
use OCP\IRequest; |
|
21
|
|
|
use OCP\IURLGenerator; |
|
22
|
|
|
|
|
23
|
|
|
class TransformURLScheme extends HTMLPurifier_URIFilter { |
|
24
|
|
|
|
|
25
|
|
|
public $name = 'TransformURLScheme'; |
|
26
|
|
|
public $post = true; |
|
27
|
|
|
|
|
28
|
|
|
/** @var IURLGenerator */ |
|
29
|
|
|
private $urlGenerator; |
|
30
|
|
|
|
|
31
|
|
|
/** @var IRequest */ |
|
32
|
|
|
private $request; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* @var \Closure |
|
36
|
|
|
*/ |
|
37
|
|
|
private $mapCidToAttachmentId; |
|
38
|
|
|
|
|
39
|
1 |
|
public function __construct($messageParameters, \Closure $mapCidToAttachmentId, |
|
40
|
|
|
IURLGenerator $urlGenerator, IRequest $request) { |
|
41
|
1 |
|
$this->messageParameters = $messageParameters; |
|
|
|
|
|
|
42
|
1 |
|
$this->mapCidToAttachmentId = $mapCidToAttachmentId; |
|
43
|
1 |
|
$this->urlGenerator = $urlGenerator; |
|
44
|
1 |
|
$this->request = $request; |
|
45
|
1 |
|
} |
|
46
|
|
|
|
|
47
|
|
|
/** |
|
48
|
|
|
* Transformator which will rewrite all HTTPS and HTTP urls to |
|
49
|
|
|
* @param \HTMLPurifier_URI $uri |
|
50
|
|
|
* @param HTMLPurifier_Config $config |
|
51
|
|
|
* @param \HTMLPurifier_Context $context |
|
52
|
|
|
* @return bool |
|
53
|
|
|
*/ |
|
54
|
1 |
|
public function filter(&$uri, $config, $context) { |
|
55
|
|
|
/** @var \HTMLPurifier_Context $context */ |
|
56
|
|
|
/** @var \HTMLPurifier_Config $config */ |
|
57
|
|
|
// Only HTTPS and HTTP urls should get rewritten |
|
58
|
1 |
|
if ($uri->scheme === 'https' || $uri->scheme === 'http') { |
|
59
|
1 |
|
$uri = $this->filterHttp($uri, $context); |
|
60
|
1 |
|
} |
|
61
|
|
|
|
|
62
|
1 |
|
if ($uri->scheme === 'cid') { |
|
63
|
|
|
$attachmentId = $this->mapCidToAttachmentId->__invoke($uri->path); |
|
64
|
|
|
if (is_null($attachmentId)) { |
|
65
|
|
|
return true; |
|
66
|
|
|
} |
|
67
|
|
|
$this->messageParameters['attachmentId'] = $attachmentId; |
|
68
|
|
|
|
|
69
|
|
|
$imgUrl = $this->urlGenerator->linkToRouteAbsolute('mail.messages.downloadAttachment', |
|
70
|
|
|
$this->messageParameters); |
|
71
|
|
|
$parser = new HTMLPurifier_URIParser(); |
|
72
|
|
|
$uri = $parser->parse($imgUrl); |
|
73
|
|
|
} |
|
74
|
|
|
|
|
75
|
1 |
|
return true; |
|
76
|
|
|
} |
|
77
|
|
|
|
|
78
|
|
|
/** |
|
79
|
|
|
* @param $uri |
|
80
|
|
|
* @param $context |
|
81
|
|
|
* @return HTMLPurifier_URI |
|
82
|
|
|
*/ |
|
83
|
1 |
|
private function filterHttp(&$uri, $context) { |
|
84
|
1 |
|
$originalURL = urlencode($uri->scheme . '://' . $uri->host . $uri->path); |
|
85
|
1 |
|
if ($uri->query !== null) { |
|
86
|
1 |
|
$originalURL = $originalURL . urlencode('?' . $uri->query); |
|
87
|
1 |
|
} |
|
88
|
|
|
|
|
89
|
|
|
// Get the HTML attribute |
|
90
|
1 |
|
$element = $context->get('CurrentAttr'); |
|
91
|
|
|
|
|
92
|
|
|
// If element is of type "href" it is most likely a link that should get redirected |
|
93
|
|
|
// otherwise it's an element that we send through our proxy |
|
94
|
1 |
|
if ($element === 'href') { |
|
95
|
1 |
|
$uri = new \HTMLPurifier_URI( |
|
96
|
1 |
|
$this->getServerProtocol(), null, $this->getServerHost(), null, |
|
97
|
1 |
|
$this->urlGenerator->linkToRoute('mail.proxy.redirect'), |
|
98
|
1 |
|
'src=' . $originalURL, null); |
|
99
|
1 |
|
return $uri; |
|
100
|
|
|
} else { |
|
101
|
1 |
|
$uri = new \HTMLPurifier_URI( |
|
102
|
1 |
|
$this->getServerProtocol(), null, $this->getServerHost(), null, |
|
103
|
1 |
|
$this->urlGenerator->linkToRoute('mail.proxy.proxy'), |
|
104
|
1 |
|
'src=' . $originalURL . '&requesttoken=' . \OC::$server->getSession()->get('requesttoken'), |
|
105
|
1 |
|
null); |
|
106
|
1 |
|
return $uri; |
|
107
|
|
|
} |
|
108
|
|
|
} |
|
109
|
|
|
|
|
110
|
|
|
/** |
|
111
|
|
|
* @todo remove version-hack once core 8.1+ is supported |
|
112
|
|
|
* @return string |
|
113
|
|
|
*/ |
|
114
|
1 |
View Code Duplication |
private function getServerProtocol() { |
|
|
|
|
|
|
115
|
1 |
|
$ocVersion = \OC::$server->getConfig()->getSystemValue('version', '0.0.0'); |
|
116
|
1 |
|
if (version_compare($ocVersion, '8.2.0', '<')) { |
|
117
|
|
|
return \Util::getServerProtocol(); |
|
118
|
|
|
} |
|
119
|
1 |
|
return $this->request->getServerProtocol(); |
|
120
|
|
|
} |
|
121
|
|
|
|
|
122
|
|
|
/** |
|
123
|
|
|
* @todo remove version-hack once core 8.1+ is supported |
|
124
|
|
|
* @return string |
|
125
|
|
|
*/ |
|
126
|
1 |
View Code Duplication |
private function getServerHost() { |
|
|
|
|
|
|
127
|
1 |
|
$ocVersion = \OC::$server->getConfig()->getSystemValue('version', '0.0.0'); |
|
128
|
1 |
|
if (version_compare($ocVersion, '8.2.0', '<')) { |
|
129
|
|
|
return \Util::getServerHost(); |
|
130
|
|
|
} |
|
131
|
1 |
|
return $this->request->getServerHost(); |
|
132
|
|
|
} |
|
133
|
|
|
|
|
134
|
|
|
} |
|
135
|
|
|
|
owncloud /
mail
Loading history...
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: