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Add preview mode support for Html and Serializer error renderers
1 parent 9623414 commit 5be5f8f

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4 files changed

+85
-25
lines changed

4 files changed

+85
-25
lines changed

‎src/Symfony/Bundle/FrameworkBundle/Resources/config/error_renderer.xml

Lines changed: 20 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -6,11 +6,22 @@
66

77
<services>
88
<service id="error_handler.error_renderer.html" class="Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer">
9-
<argument>%kernel.debug%</argument>
9+
<argument type="service">
10+
<service>
11+
<factory class="Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer" method="isDebug" />
12+
<argument type="service" id="request_stack" />
13+
<argument>%kernel.debug%</argument>
14+
</service>
15+
</argument>
1016
<argument>%kernel.charset%</argument>
1117
<argument type="service" id="debug.file_link_formatter" on-invalid="null" />
1218
<argument>%kernel.project_dir%</argument>
13-
<argument type="service" id="request_stack" />
19+
<argument type="service">
20+
<service>
21+
<factory class="Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer" method="getAndCleanOutputBuffering" />
22+
<argument type="service" id="request_stack" />
23+
</service>
24+
</argument>
1425
<argument type="service" id="logger" on-invalid="null" />
1526
</service>
1627

@@ -23,6 +34,13 @@
2334
</service>
2435
</argument>
2536
<argument type="service" id="error_renderer.html" />
37+
<argument type="service">
38+
<service>
39+
<factory class="Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer" method="isDebug" />
40+
<argument type="service" id="request_stack" />
41+
<argument>%kernel.debug%</argument>
42+
</service>
43+
</argument>
2644
</service>
2745

2846
<service id="error_renderer.html" alias="error_handler.error_renderer.html" />

‎src/Symfony/Component/ErrorHandler/ErrorRenderer/HtmlErrorRenderer.php

Lines changed: 50 additions & 19 deletions
Original file line numberDiff line numberDiff line change
@@ -36,16 +36,28 @@ class HtmlErrorRenderer implements ErrorRendererInterface
3636
private $charset;
3737
private $fileLinkFormat;
3838
private $projectDir;
39-
private $requestStack;
39+
private $outputBuffering;
4040
private $logger;
4141

42-
public function __construct(bool $debug = false, string $charset = null, $fileLinkFormat = null, string $projectDir = null, RequestStack $requestStack = null, LoggerInterface $logger = null)
42+
/**
43+
* @param bool|callable $debug The debugging mode as a boolean or a callable that should return it
44+
* @param bool|callable $outputBuffering The output buffering as a string or a callable that should return it
45+
*/
46+
public function __construct($debug = false, string $charset = null, $fileLinkFormat = null, string $projectDir = null, $outputBuffering = '', LoggerInterface $logger = null)
4347
{
48+
if (!\is_bool($debug) && !\is_callable($debug)) {
49+
throw new \TypeError(sprintf('Argument 1 passed to %s() must be a boolean or a callable, %s given.', __METHOD__, \is_object($debug) ? \get_class($debug) : \gettype($debug)));
50+
}
51+
52+
if (!\is_string($outputBuffering) && !\is_callable($outputBuffering)) {
53+
throw new \TypeError(sprintf('Argument 5 passed to %s() must be a string or a callable, %s given.', __METHOD__, \is_object($outputBuffering) ? \get_class($outputBuffering) : \gettype($outputBuffering)));
54+
}
55+
4456
$this->debug = $debug;
4557
$this->charset = $charset ?: (ini_get('default_charset') ?: 'UTF-8');
4658
$this->fileLinkFormat = $fileLinkFormat ?: (ini_get('xdebug.file_link_format') ?: get_cfg_var('xdebug.file_link_format'));
4759
$this->projectDir = $projectDir;
48-
$this->requestStack = $requestStack;
60+
$this->outputBuffering = $outputBuffering;
4961
$this->logger = $logger;
5062
}
5163

@@ -57,7 +69,7 @@ public function render(\Throwable $exception): FlattenException
5769
$exception = FlattenException::createFromThrowable($exception, null, [
5870
'Content-Type' => 'text/html; charset='.$this->charset,
5971
]);
60-
72+
6173
return $exception->setAsString($this->renderException($exception));
6274
}
6375

@@ -81,42 +93,61 @@ public function getStylesheet(): string
8193
return $this->include('assets/css/exception.css');
8294
}
8395

96+
public static function isDebug(RequestStack $requestStack, bool $debug): \Closure
97+
{
98+
return static function () use ($requestStack, $debug): bool {
99+
if (!$request = $requestStack->getCurrentRequest()) {
100+
return $debug;
101+
}
102+
103+
return $debug && $request->attributes->getBoolean('showException', true);
104+
};
105+
}
106+
107+
public static function getAndCleanOutputBuffering(RequestStack $requestStack): \Closure
108+
{
109+
return static function () use ($requestStack): string {
110+
if (!$request = $requestStack->getCurrentRequest()) {
111+
return '';
112+
}
113+
114+
$startObLevel = $request->headers->get('X-Php-Ob-Level', -1);
115+
116+
if (ob_get_level() <= $startObLevel) {
117+
return '';
118+
}
119+
120+
Response::closeOutputBuffers($startObLevel + 1, true);
121+
122+
return ob_get_clean();
123+
};
124+
}
125+
84126
private function renderException(FlattenException $exception, string $debugTemplate = 'views/exception_full.html.php'): string
85127
{
128+
$debug = \is_bool($this->debug) ? $this->debug : ($this->debug)($exception);
86129
$statusText = $this->escape($exception->getStatusText());
87130
$statusCode = $this->escape($exception->getStatusCode());
88131

89-
if (!$this->debug) {
132+
if (!$debug) {
90133
return $this->include('views/error.html.php', [
91134
'statusText' => $statusText,
92135
'statusCode' => $statusCode,
93136
]);
94137
}
95138

96139
$exceptionMessage = $this->escape($exception->getMessage());
97-
$request = $this->requestStack ? $this->requestStack->getCurrentRequest() : null;
98140

99141
return $this->include($debugTemplate, [
100142
'exception' => $exception,
101143
'exceptionMessage' => $exceptionMessage,
102144
'statusText' => $statusText,
103145
'statusCode' => $statusCode,
104146
'logger' => $this->logger instanceof DebugLoggerInterface ? $this->logger : null,
105-
'currentContent' => $request ? $this->getAndCleanOutputBuffering($request->headers->get('X-Php-Ob-Level', -1)) : '',
147+
'currentContent' => \is_string($this->outputBuffering) ? $this->outputBuffering : ($this->outputBuffering)(),
106148
]);
107149
}
108150

109-
private function getAndCleanOutputBuffering(int $startObLevel): string
110-
{
111-
if (ob_get_level() <= $startObLevel) {
112-
return '';
113-
}
114-
115-
Response::closeOutputBuffers($startObLevel + 1, true);
116-
117-
return ob_get_clean();
118-
}
119-
120151
/**
121152
* Formats an array as a string.
122153
*/
@@ -312,7 +343,7 @@ private function include(string $name, array $context = []): string
312343
{
313344
extract($context, EXTR_SKIP);
314345
ob_start();
315-
include __DIR__ . '/../Resources/' .$name;
346+
include __DIR__.'/../Resources/'.$name;
316347

317348
return trim(ob_get_clean());
318349
}

‎src/Symfony/Component/ErrorHandler/ErrorRenderer/SerializerErrorRenderer.php

Lines changed: 12 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -26,19 +26,26 @@ class SerializerErrorRenderer implements ErrorRendererInterface
2626
private $serializer;
2727
private $format;
2828
private $fallbackErrorRenderer;
29+
private $debug;
2930

3031
/**
3132
* @param string|callable(FlattenException) $format The format as a string or a callable that should return it
33+
* @param bool|callable $debug The debugging mode as a boolean or a callable that should return it
3234
*/
33-
public function __construct(SerializerInterface $serializer, $format, ErrorRendererInterface $fallbackErrorRenderer = null)
35+
public function __construct(SerializerInterface $serializer, $format, ErrorRendererInterface $fallbackErrorRenderer = null, $debug = false)
3436
{
3537
if (!\is_string($format) && !\is_callable($format)) {
3638
throw new \TypeError(sprintf('Argument 2 passed to %s() must be a string or a callable, %s given.', __METHOD__, \is_object($format) ? \get_class($format) : \gettype($format)));
3739
}
3840

41+
if (!\is_bool($debug) && !\is_callable($debug)) {
42+
throw new \TypeError(sprintf('Argument 4 passed to %s() must be a boolean or a callable, %s given.', __METHOD__, \is_object($debug) ? \get_class($debug) : \gettype($debug)));
43+
}
44+
3945
$this->serializer = $serializer;
4046
$this->format = $format;
4147
$this->fallbackErrorRenderer = $fallbackErrorRenderer ?? new HtmlErrorRenderer();
48+
$this->debug = $debug;
4249
}
4350

4451
/**
@@ -51,7 +58,10 @@ public function render(\Throwable $exception): FlattenException
5158
try {
5259
$format = \is_string($this->format) ? $this->format : ($this->format)($flattenException);
5360

54-
return $flattenException->setAsString($this->serializer->serialize($flattenException, $format, ['exception' => $exception]));
61+
return $flattenException->setAsString($this->serializer->serialize($flattenException, $format, [
62+
'exception' => $exception,
63+
'debug' => \is_bool($this->debug) ? $this->debug : ($this->debug)($exception),
64+
]));
5565
} catch (NotEncodableValueException $e) {
5666
return $this->fallbackErrorRenderer->render($exception);
5767
}

‎src/Symfony/Component/Serializer/Normalizer/ProblemNormalizer.php

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -41,14 +41,15 @@ public function __construct(bool $debug = false, array $defaultContext = [])
4141
public function normalize($exception, $format = null, array $context = [])
4242
{
4343
$context += $this->defaultContext;
44+
$debug = $this->debug && $context['debug'] ?? true;
4445

4546
$data = [
4647
'type' => $context['type'],
4748
'title' => $context['title'],
4849
'status' => $context['status'] ?? $exception->getStatusCode(),
49-
'detail' => $this->debug ? $exception->getMessage() : $exception->getStatusText(),
50+
'detail' => $debug ? $exception->getMessage() : $exception->getStatusText(),
5051
];
51-
if ($this->debug) {
52+
if ($debug) {
5253
$data['class'] = $exception->getClass();
5354
$data['trace'] = $exception->getTrace();
5455
}

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