-
Notifications
You must be signed in to change notification settings - Fork 3.4k
/
ErrorHandlerMiddleware.php
237 lines (210 loc) · 7.2 KB
/
ErrorHandlerMiddleware.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
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org)
* @link https://cakephp.org CakePHP(tm) Project
* @since 3.3.0
* @license https://opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Error\Middleware;
use Cake\Core\App;
use Cake\Core\Configure;
use Cake\Core\InstanceConfigTrait;
use Cake\Core\PluginApplicationInterface;
use Cake\Error\ExceptionTrap;
use Cake\Error\Renderer\WebExceptionRenderer;
use Cake\Event\EventDispatcherTrait;
use Cake\Http\Exception\RedirectException;
use Cake\Http\Response;
use Cake\Routing\Router;
use Cake\Routing\RoutingApplicationInterface;
use Laminas\Diactoros\Response\RedirectResponse;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Throwable;
use function Cake\Core\triggerWarning;
/**
* Error handling middleware.
*
* Traps exceptions and converts them into HTML or content-type appropriate
* error pages using the CakePHP ExceptionRenderer.
*/
class ErrorHandlerMiddleware implements MiddlewareInterface
{
use InstanceConfigTrait;
/**
* @use \Cake\Event\EventDispatcherTrait<\Cake\Error\ExceptionTrap>
*/
use EventDispatcherTrait;
/**
* Default configuration values.
*
* Ignored if contructor is passed an ExceptionTrap instance.
*
* Configuration keys and values are shared with `ExceptionTrap`.
* This class will pass its configuration onto the ExceptionTrap
* class if you are using the array style constructor.
*
* @var array<string, mixed>
* @see \Cake\Error\ExceptionTrap
*/
protected array $_defaultConfig = [
'exceptionRenderer' => WebExceptionRenderer::class,
];
/**
* ExceptionTrap instance
*
* @var \Cake\Error\ExceptionTrap|null
*/
protected ?ExceptionTrap $exceptionTrap = null;
/**
* @var \Cake\Routing\RoutingApplicationInterface|null
*/
protected ?RoutingApplicationInterface $app = null;
/**
* Constructor
*
* @param \Cake\Error\ExceptionTrap|array $config The error handler instance
* or config array.
* @param \Cake\Routing\RoutingApplicationInterface|null $app Application instance.
*/
public function __construct(ExceptionTrap|array $config = [], ?RoutingApplicationInterface $app = null)
{
$this->app = $app;
if (Configure::read('debug')) {
ini_set('zend.exception_ignore_args', '0');
}
if (is_array($config)) {
$this->setConfig($config);
return;
}
$this->exceptionTrap = $config;
}
/**
* Wrap the remaining middleware with error handling.
*
* @param \Psr\Http\Message\ServerRequestInterface $request The request.
* @param \Psr\Http\Server\RequestHandlerInterface $handler The request handler.
* @return \Psr\Http\Message\ResponseInterface A response
*/
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
{
try {
return $handler->handle($request);
} catch (RedirectException $exception) {
return $this->handleRedirect($exception);
} catch (Throwable $exception) {
return $this->handleException($exception, $request);
}
}
/**
* Handle an exception and generate an error response
*
* @param \Throwable $exception The exception to handle.
* @param \Psr\Http\Message\ServerRequestInterface $request The request.
* @return \Psr\Http\Message\ResponseInterface A response.
*/
public function handleException(Throwable $exception, ServerRequestInterface $request): ResponseInterface
{
$this->loadRoutes();
$trap = $this->getExceptionTrap();
$trap->logException($exception, $request);
$event = $this->dispatchEvent(
'Exception.beforeRender',
['exception' => $exception, 'request' => $request],
$trap
);
$exception = $event->getData('exception');
assert($exception instanceof Throwable);
$renderer = $trap->renderer($exception, $request);
$response = $event->getResult();
try {
$response ??= $renderer->render();
if (is_string($response)) {
return new Response(['body' => $response, 'status' => 500]);
}
return $response instanceof ResponseInterface
? $response
: new Response(['body' => $response, 'status' => 500]);
} catch (Throwable $internalException) {
$trap->logException($internalException, $request);
return $this->handleInternalError();
}
}
/**
* Convert a redirect exception into a response.
*
* @param \Cake\Http\Exception\RedirectException $exception The exception to handle
* @return \Psr\Http\Message\ResponseInterface Response created from the redirect.
*/
public function handleRedirect(RedirectException $exception): ResponseInterface
{
return new RedirectResponse(
$exception->getMessage(),
$exception->getCode(),
$exception->getHeaders()
);
}
/**
* Handle internal errors.
*
* @return \Psr\Http\Message\ResponseInterface A response
*/
protected function handleInternalError(): ResponseInterface
{
return new Response([
'body' => 'An Internal Server Error Occurred',
'status' => 500,
]);
}
/**
* Get a exception trap instance
*
* @return \Cake\Error\ExceptionTrap The exception trap.
*/
protected function getExceptionTrap(): ExceptionTrap
{
if ($this->exceptionTrap === null) {
/** @var class-string<\Cake\Error\ExceptionTrap> $className */
$className = App::className('ExceptionTrap', 'Error');
$this->exceptionTrap = new $className($this->getConfig());
}
return $this->exceptionTrap;
}
/**
* Ensure that the application's routes are loaded.
*
* @return void
*/
protected function loadRoutes(): void
{
if (
!($this->app instanceof RoutingApplicationInterface)
|| Router::routes()
) {
return;
}
try {
$builder = Router::createRouteBuilder('/');
$this->app->routes($builder);
if ($this->app instanceof PluginApplicationInterface) {
$this->app->pluginRoutes($builder);
}
} catch (Throwable $e) {
triggerWarning(sprintf(
"Exception loading routes when rendering an error page: \n %s - %s",
get_class($e),
$e->getMessage()
));
}
}
}