1
|
|
|
<?php |
2
|
|
|
|
3
|
|
|
namespace Omnipay\GoCardless\Message; |
4
|
|
|
|
5
|
|
|
use Omnipay\Common\Http\ClientInterface; |
6
|
|
|
use Omnipay\Common\Message\AbstractRequest; |
|
|
|
|
7
|
|
|
use Symfony\Component\HttpFoundation\Request as HttpRequest; |
8
|
|
|
|
9
|
|
|
/** |
10
|
|
|
* @todo do we want to implement ResponseInterface so we have a getMessage() in case of error? |
11
|
|
|
*/ |
12
|
|
|
class WebhookNotification extends AbstractRequest |
13
|
|
|
{ |
14
|
|
|
/** |
15
|
|
|
* @var mixed The data contained in the request. |
16
|
|
|
*/ |
17
|
|
|
protected $data; |
18
|
|
|
|
19
|
|
|
/** |
20
|
|
|
* @inheritDoc |
21
|
|
|
*/ |
22
|
|
|
public function __construct(ClientInterface $httpClient, HttpRequest $httpRequest) |
23
|
|
|
{ |
24
|
|
|
parent::__construct($httpClient, $httpRequest); |
25
|
|
|
// fetch POST stream directly |
26
|
|
|
$this->data = json_decode($httpRequest->getContent(), true); |
27
|
|
|
} |
28
|
|
|
|
29
|
|
|
/** |
30
|
|
|
* @return null|mixed |
31
|
|
|
*/ |
32
|
|
|
public function getData() |
33
|
|
|
{ |
34
|
|
|
return $this->data; |
35
|
|
|
} |
36
|
|
|
|
37
|
|
|
|
38
|
|
|
/** |
39
|
|
|
* @return array |
40
|
|
|
*/ |
41
|
|
|
public function getNotifications() |
42
|
|
|
{ |
43
|
|
|
if (isset($this->data['events'])) { |
44
|
|
|
return $this->data['events']; |
45
|
|
|
} |
46
|
|
|
return []; |
47
|
|
|
} |
48
|
|
|
|
49
|
|
|
/** |
50
|
|
|
* @return null|string |
51
|
|
|
*/ |
52
|
|
|
public function getWebhookId() |
53
|
|
|
{ |
54
|
|
|
if (isset($this->data['meta']['webhook_id'])) { |
55
|
|
|
return $this->data['meta']['webhook_id']; |
56
|
|
|
} |
57
|
|
|
} |
58
|
|
|
|
59
|
|
|
/** |
60
|
|
|
* Given a secret, is the signature on this webhook valid? |
61
|
|
|
* |
62
|
|
|
* Note: request bodies are minified JSON, so strip superfluous whitespace when testing, including trailing newlines |
63
|
|
|
* |
64
|
|
|
* @return bool Application should return '498 Token Invalid' if false |
65
|
|
|
*/ |
66
|
|
|
public function hasValidSignature($secret) |
67
|
|
|
{ |
68
|
|
|
$supplied = $this->httpRequest->headers->get('Webhook-Signature'); |
69
|
|
|
|
70
|
|
|
// DEBUG: strip whitespace from body (minify JSON), including trailing newlines |
71
|
|
|
// $rawBody = $this->httpRequest->getContent(); |
72
|
|
|
// $minified = json_encode(json_decode($rawBody)); |
73
|
|
|
// echo "\nSTART\n{$rawBody}\nSTOP\n"; |
74
|
|
|
// echo "\nSTART\n{$minified}\nSTOP\n"; |
75
|
|
|
|
76
|
|
|
$calculated = hash_hmac('sha256', $this->httpRequest->getContent(), $secret); |
77
|
|
|
return $supplied === $calculated; |
78
|
|
|
} |
79
|
|
|
|
80
|
|
|
/** |
81
|
|
|
* Implemented as part of {@see AbstractRequest}} for legacy support |
82
|
|
|
*/ |
83
|
|
|
public function sendData($data) |
84
|
|
|
{ |
85
|
|
|
return $this; |
|
|
|
|
86
|
|
|
} |
87
|
|
|
} |
88
|
|
|
|
Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: