-
Notifications
You must be signed in to change notification settings - Fork 2
/
Whoops.php
166 lines (142 loc) · 4.13 KB
/
Whoops.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
<?php
namespace Dopesong\Slim\Error;
use Whoops\Handler\HandlerInterface;
use Whoops\Handler\XmlResponseHandler;
use Whoops\Run as WhoopsRun;
use Whoops\Handler\PrettyPageHandler;
use Whoops\Handler\JsonResponseHandler;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* Whoops Error Handler
*
* This class is a Slim Framework Error Handler
* built on top of the Whoops Error Handler.
* Whoops is a PHP component created by Filipe Dobreira
* and now maintained by Denis Sokolov
*
* @package Slim\ErrorHandlers
*/
class Whoops
{
const DEFAULT_STATUS_CODE = 500;
/**
* @var WhoopsRun
*/
protected $whoops;
/**
* @var bool
*/
protected $handlerPushed = false;
/**
* Known handled content types
*
* @var array
*/
protected $knownContentTypes = [
'application/json',
'application/xml',
'text/xml',
'text/html',
];
/**
* Transmit exception code as response status code or not
*
* @var bool
*/
protected $transmitExceptionCode = false;
/**
* Constructor
*/
public function __construct()
{
$this->whoops = new WhoopsRun;
}
/**
* @param Callable|HandlerInterface $handler
*
* @throws \InvalidArgumentException If argument is not callable or instance of HandlerInterface
*/
public function pushHandler($handler)
{
$this->whoops->pushHandler($handler);
$this->handlerPushed = true;
}
/**
* @param ServerRequestInterface $request
* @param ResponseInterface $response
* @param \Throwable $throwable
*
* @return ResponseInterface
*/
public function __invoke(ServerRequestInterface $request, ResponseInterface $response, $throwable)
{
$contentType = $this->determineContentType($request);
$this->pushHandlerByContentType($contentType);
$output = null;
$output = $this->whoops->handleException($throwable);
$body = $response->getBody();
$body->write($output);
$statusCode = $this->transmitExceptionCode === true ? $throwable->getCode() : self::DEFAULT_STATUS_CODE;
return $response->withStatus($statusCode)
->withHeader('Content-type', $contentType)
->withBody($body);
}
/**
* @param $contentType
*/
protected function pushHandlerByContentType($contentType)
{
$contentTypeBasedHandler = null;
switch ($contentType) {
case 'application/json':
$contentTypeBasedHandler = new JsonResponseHandler();
break;
case 'text/xml':
case 'application/xml':
$contentTypeBasedHandler = new XmlResponseHandler();
break;
case 'text/html':
$contentTypeBasedHandler = new PrettyPageHandler();
break;
default:
return;
}
$this->prependHandler($contentTypeBasedHandler);
}
/**
* @param Callable|HandlerInterface $handler
*/
private function prependHandler($handler)
{
$existingHandlers = array_merge([$handler], $this->whoops->getHandlers());
$this->whoops->clearHandlers();
foreach ($existingHandlers as $existingHandler) {
$this->whoops->pushHandler($existingHandler);
}
}
/**
* Determine which content type we know about is wanted using Accept header
*
* @param ServerRequestInterface $request
*
* @return string
*/
private function determineContentType(ServerRequestInterface $request)
{
$acceptHeader = $request->getHeaderLine('Accept');
$selectedContentTypes = array_intersect(explode(',', $acceptHeader), $this->knownContentTypes);
if (count($selectedContentTypes)) {
return reset($selectedContentTypes);
}
return 'text/html';
}
/**
* @param boolean $ption
*/
protected function setTransmitExceptionCode($option)
{
$this->transmitExceptionCode = $option;
return $this;
}
}