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<?php |
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namespace Phrest\Middleware; |
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class JsonRequestBody implements \Interop\Http\ServerMiddleware\MiddlewareInterface |
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{ |
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const RAW_BODY_ATTRIBUTE = self::class . '::RAW_BODY_ATTRIBUTE'; |
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const JSON_OBJECT_ATTRIBUTE = self::class . '::JSON_OBJECT_ATTRIBUTE'; |
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static private $jsonDecodeErrorMapping = [ |
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\JSON_ERROR_DEPTH => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_DEPTH, |
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\JSON_ERROR_STATE_MISMATCH => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_STATE_MISMATCH, |
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\JSON_ERROR_CTRL_CHAR => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_CTRL_CHAR, |
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\JSON_ERROR_SYNTAX => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_SYNTAX, |
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\JSON_ERROR_UTF8 => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_UTF8, |
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\JSON_ERROR_RECURSION => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_RECURSION, |
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\JSON_ERROR_INF_OR_NAN => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_INF_OR_NAN, |
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\JSON_ERROR_UNSUPPORTED_TYPE => \Phrest\API\ErrorCodes::JSON_DECODE_ERROR_UNSUPPORTED_TYPE, |
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]; |
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public function process(\Psr\Http\Message\ServerRequestInterface $request, \Interop\Http\ServerMiddleware\DelegateInterface $delegate) |
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{ |
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$match = $this->match($request->getHeaderLine('Content-Type')); |
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if (!$match || in_array($request->getMethod(), ['GET', 'HEAD', 'OPTIONS'])) { |
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return $delegate->process($request); |
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} |
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$rawBody = (string)$request->getBody(); |
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$parsedBody = json_decode($rawBody, true); |
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if (!empty($rawBody) && json_last_error() !== JSON_ERROR_NONE) { |
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$errorEntryCode = self::$jsonDecodeErrorMapping[json_last_error()] ?? \Phrest\API\ErrorCodes::UNKNOWN; |
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throw \Phrest\Http\Exception::BadRequest( |
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new \Phrest\API\Error( |
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\Phrest\API\ErrorCodes::JSON_DECODE_ERROR, |
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'json decode error', |
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new \Phrest\API\ErrorEntry($errorEntryCode, '{body}', json_last_error_msg(), '') |
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) |
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); |
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} |
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return $delegate->process( |
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$request |
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->withAttribute(self::RAW_BODY_ATTRIBUTE, $rawBody) |
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->withAttribute(self::JSON_OBJECT_ATTRIBUTE, json_decode($rawBody)) |
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->withParsedBody($parsedBody) |
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); |
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} |
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private function match($contentType) |
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{ |
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$parts = explode(';', $contentType); |
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$mime = array_shift($parts); |
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return (bool)preg_match('#[/+]json$#', trim($mime)); |
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} |
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} |
DonUrks /
phrest
