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<?php |
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namespace Psr7Middlewares\Middleware; |
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use DebugBar\DebugBar as Bar; |
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use DebugBar\StandardDebugBar; |
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use Psr7Middlewares\Middleware; |
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use Psr7Middlewares\Utils; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Psr\Http\Message\ResponseInterface; |
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/** |
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* Middleware to render a debugbar in html responses. |
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*/ |
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class DebugBar |
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{ |
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use Utils\HtmlInjectorTrait; |
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private $debugBar; |
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private $captureAjax = true; |
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/** |
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* Constructor. Set the debug bar. |
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* |
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* @param Bar|null $debugBar |
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*/ |
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public function __construct(Bar $debugBar = null) |
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{ |
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if ($debugBar !== null) { |
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$this->debugBar($debugBar); |
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} |
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} |
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/** |
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* Set the debug bar. |
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* |
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* @param Bar $debugBar |
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* |
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* @return self |
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*/ |
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public function debugBar(Bar $debugBar) |
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{ |
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$this->debugBar = $debugBar; |
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return $this; |
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} |
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/** |
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* Configure whether capture ajax requests to send the data with headers |
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* |
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* @param bool $captureAjax |
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* |
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* @return self |
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*/ |
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public function captureAjax($captureAjax = true) |
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{ |
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$this->captureAjax = $captureAjax; |
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return $this; |
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} |
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/** |
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* Execute the middleware. |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @param callable $next |
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* |
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* @return ResponseInterface |
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*/ |
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public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next) |
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{ |
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if (!Middleware::hasAttribute($request, FormatNegotiator::KEY)) { |
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throw new RuntimeException('This middleware needs FormatNegotiator executed before'); |
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} |
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$ajax = Utils\Helpers::isAjax($request); |
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$debugBar = $this->debugBar ?: new StandardDebugBar(); |
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//Redirection response |
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if (Utils\Helpers::isRedirect($response)) { |
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if ($debugBar->isDataPersisted() || session_status() === PHP_SESSION_ACTIVE) { |
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$debugBar->stackData(); |
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} |
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//Html response |
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} elseif (FormatNegotiator::getFormat($request) === 'html') { |
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$renderer = $debugBar->getJavascriptRenderer(); |
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ob_start(); |
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echo '<style>'; |
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$renderer->dumpCssAssets(); |
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echo '</style>'; |
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echo '<script>'; |
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$renderer->dumpJsAssets(); |
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echo '</script>'; |
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echo $renderer->render(!$ajax); |
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$response = $this->inject($response, ob_get_clean()); |
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//Ajax response |
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} elseif ($ajax && $this->captureAjax) { |
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$headers = $debugBar->getDataAsHeaders(); |
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foreach ($headers as $name => $value) { |
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$response = $response->withHeader($name, $value); |
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} |
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} |
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return $next($request, $response); |
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} |
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} |
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oscarotero /
psr7-middlewares
