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<?php declare(strict_types=1); |
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use Koded\Http\{AcceptHeaderNegotiator, HTTPError}; |
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use Koded\Http\Interfaces\{Request, Response}; |
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use Psr\Http\Message\{ResponseInterface, ServerRequestInterface}; |
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use function Koded\Http\create_stream; |
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8
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9
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function start_response(Request $request, Response $response): void |
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{ |
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if (false === $response->hasHeader('Content-Type')) { |
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$media = $request->getAttribute('@media') ?? client_prefers($request); |
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// [NOTE]: Web browsers have weird Accept headers and |
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// this renderer overrules the default XML and/or XHTML type |
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// by preferring JSON, hence forcing the response for ReST apps. |
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if (str_contains($media, 'html')) { |
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$media = 'application/json'; |
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} |
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$response = $response |
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->withHeader('Content-Type', $media) |
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->withAddedHeader('Vary', 'Content-Type'); |
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} |
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$response->getBody()->rewind(); |
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$response->sendHeaders(); |
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echo $response->sendBody(); |
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} |
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/** |
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* Content type negotiation. |
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* Finds the closest match for Accept request header. |
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* |
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* @param ServerRequestInterface $request |
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* @return string The content type that matches the Accept header. |
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* If catch-all is provided, defaults to application/json |
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*/ |
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function client_prefers(ServerRequestInterface $request): string |
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{ |
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$media = (new AcceptHeaderNegotiator('*/*')) |
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->match($request->getHeaderLine('Accept') ?: '*/*') |
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->value(); |
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4 |
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if ('*' === $media) { |
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3 |
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return 'application/json'; |
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} |
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1 |
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return $media . (str_contains($media, 'json') ? '' : '; charset=UTF-8'); |
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} |
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/** |
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* Exceptions serializer (follows the RFC-7807). |
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* |
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* @param ServerRequestInterface $request |
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* @param ResponseInterface $response |
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* @param HTTPError $exception |
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* @return ResponseInterface |
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* @see https://tools.ietf.org/html/rfc7807 |
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*/ |
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function default_serialize_error( |
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ServerRequestInterface $request, |
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ResponseInterface $response, |
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HTTPError $exception): ResponseInterface |
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{ |
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4 |
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$exception->setInstance($request->getUri()->getPath()); |
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4 |
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$response = $response |
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4 |
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->withHeader('X-Error-Status', join(' ', [$response->getStatusCode(), $response->getReasonPhrase()])) |
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4 |
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->withHeader('X-Error-Message', str_replace(["\n", "\r", "\t"], ' ', $exception->getDetail())) |
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4 |
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->withHeader('Cache-Control', 'no-cache, max-age=0') |
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4 |
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->withHeader('Connection', 'close'); |
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69
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4 |
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if (str_contains(client_prefers($request), 'xml')) { |
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return $response |
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->withHeader('Content-Type', 'application/problem+xml') |
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->withBody(create_stream($exception->toXml())); |
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} |
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4 |
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return $response |
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4 |
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->withHeader('Content-Type', 'application/problem+json') |
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->withBody(create_stream($exception->toJson())); |
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} |
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kodeart /
koded
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