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<?php |
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namespace WebServCo\Api; |
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use WebServCo\Api\JsonApi\Document; |
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use WebServCo\Api\Exceptions\ApiException; |
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abstract class AbstractClientRequest |
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{ |
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protected $allowMultipleDataObjects; |
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protected $request; |
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protected $processRequestData; |
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protected $requestData; |
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const MSG_TPL_INVALID = 'Invalid data: %s'; |
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const MSG_TPL_MAXIMUM_LENGTH = 'Maximum length exceeded: %s (%s)'; |
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const MSG_TPL_REQUIRED = 'Missing required data: %s'; |
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public function __construct( |
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\WebServCo\Framework\Interfaces\RequestInterface $request |
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) { |
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$this->allowMultipleDataObjects = false; |
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$this->request = $request; |
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$requestMethod = $this->request->getMethod(); |
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if (in_array($requestMethod, [\WebServCo\Framework\Http\Method::POST])) { |
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$this->processRequestData = true; |
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$this->requestData = json_decode($this->request->getBody(), true); |
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} |
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} |
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protected function throwInvalidException($item) |
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{ |
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throw new ApiException(sprintf(self::MSG_TPL_INVALID, $item)); |
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} |
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protected function throwMaximumLengthException($item, $maximumLength) |
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{ |
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throw new ApiException(sprintf(self::MSG_TPL_MAXIMUM_LENGTH, $item, $maximumLength)); |
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} |
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protected function throwRequiredException($item) |
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{ |
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throw new ApiException(sprintf(self::MSG_TPL_REQUIRED, $item)); |
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} |
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protected function verify() |
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{ |
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$this->verifyContentType(); |
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if ($this->processRequestData) { |
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$this->verifyRequestData(); |
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} |
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return true; |
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} |
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protected function verifyContentType() |
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{ |
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$contentType = $this->request->getContentType(); |
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$parts = explode(';', (string) $contentType); |
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if ($parts[0] != Document::CONTENT_TYPE) { |
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throw new \WebServCo\Framework\Exceptions\UnsupportedMediaTypeException( |
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sprintf('Unsupported content type: %s.', (string) $contentType) |
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); |
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} |
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return true; |
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} |
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protected function verifyRequestData() |
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{ |
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if (!is_array($this->requestData)) { |
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$this->throwInvalidException('root object'); |
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} |
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foreach (['jsonapi', 'data'] as $item) { |
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if (!isset($this->requestData[$item])) { |
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$this->throwRequiredException($item); |
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} |
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} |
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if (!isset($this->requestData['jsonapi']['version'])) { |
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$this->throwRequiredException('jsonapi.version'); |
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} |
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if ($this->requestData['jsonapi']['version'] != Document::VERSION) { |
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throw new ApiException( |
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sprintf('Unsupported JSON API version: %s', $this->requestData['jsonapi']['version']) |
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); |
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} |
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if (!is_array($this->requestData['data'])) { |
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$this->throwInvalidException('data'); |
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} |
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$key = key($this->requestData['data']); |
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if (0 === $key) { //multiple data objects |
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if (!$this->allowMultipleDataObjects) { |
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throw new ApiException('Multiple data objects not allowed for this endpoint'); |
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} |
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foreach ($this->requestData['data'] as $item) { |
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$this->verifyData($item); |
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} |
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} else { // single data object |
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$this->verifyData($this->requestData['data']); |
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} |
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$this->verifyMeta(); |
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return true; |
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} |
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protected function verifyData($data) |
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{ |
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foreach (['type', 'attributes'] as $item) { |
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if (!isset($data[$item])) { |
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$this->throwRequiredException(sprintf('data.%s', $item)); |
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} |
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} |
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if (empty($data['type'])) { |
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$this->throwRequiredException('data.type'); |
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} |
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if (!is_array($data['attributes'])) { |
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$this->throwInvalidException('data.attributes'); |
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} |
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return true; |
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} |
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protected function verifyMeta() |
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{ |
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if (isset($this->requestData['meta'])) { // meta is optional |
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if (!is_array($this->requestData['meta'])) { |
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$this->throwInvalidException('meta'); |
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} |
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} |
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} |
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} |
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