-
Notifications
You must be signed in to change notification settings - Fork 2
Expand file tree
/
Copy pathErrorHandler.php
More file actions
115 lines (99 loc) · 3.64 KB
/
ErrorHandler.php
File metadata and controls
115 lines (99 loc) · 3.64 KB
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
<?php
declare(strict_types=1);
namespace Dot\ErrorHandler;
use ErrorException;
use Laminas\Stratigility\Middleware\ErrorResponseGenerator;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\MiddlewareInterface;
use Psr\Http\Server\RequestHandlerInterface;
use Throwable;
use function error_reporting;
use function in_array;
use function restore_error_handler;
use function set_error_handler;
class ErrorHandler implements MiddlewareInterface, ErrorHandlerInterface
{
/** @var callable[] */
private array $listeners = [];
/** @var callable Routine that will generate the error response. */
private $responseGenerator;
/** @var callable */
private $responseFactory;
/**
* @param callable $responseFactory A factory capable of returning an
* empty ResponseInterface instance to update and return when returning
* an error response.
* @param null|callable $responseGenerator Callback that will generate the final
* error response; if none is provided, ErrorResponseGenerator is used.
*/
public function __construct(callable $responseFactory, ?callable $responseGenerator = null)
{
$this->responseFactory = function () use ($responseFactory): ResponseInterface {
return $responseFactory();
};
$this->responseGenerator = $responseGenerator ?: new ErrorResponseGenerator();
}
public function attachListener(callable $listener): void
{
if (in_array($listener, $this->listeners, true)) {
return;
}
$this->listeners[] = $listener;
}
public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
{
set_error_handler($this->createErrorHandler());
try {
$response = $handler->handle($request);
} catch (Throwable $e) {
$response = $this->handleThrowable($e, $request);
}
restore_error_handler();
return $response;
}
/**
* Handles all throwables, generating and returning a response.
*
* Passes the error, request, and response prototype to createErrorResponse(),
* triggers all listeners with the same arguments (but using the response
* returned from createErrorResponse()), and then returns the response.
*/
public function handleThrowable(Throwable $e, ServerRequestInterface $request): ResponseInterface
{
$generator = $this->responseGenerator;
$response = $generator($e, $request, ($this->responseFactory)());
$this->triggerListeners($e, $request, $response);
return $response;
}
/**
* Creates and returns a callable error handler that raises exceptions.
*
* Only raises exceptions for errors that are within the error_reporting mask.
*/
public function createErrorHandler(): callable
{
/**
* @throws ErrorException if error is not within the error_reporting mask.
*/
return function (int $errno, string $errstr, string $errfile, int $errline): void {
if (! (error_reporting() & $errno)) {
// error_reporting does not include this error
return;
}
throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
};
}
/**
* Trigger all error listeners.
*/
public function triggerListeners(
Throwable $error,
ServerRequestInterface $request,
ResponseInterface $response
): void {
foreach ($this->listeners as $listener) {
$listener($error, $request, $response);
}
}
}