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<?php |
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|
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namespace Dudlewebs\WPMCS\s3\Aws; |
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|
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use Dudlewebs\WPMCS\s3\Aws\Api\Service; |
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/** |
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* Validates the required input parameters of commands are non empty |
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* |
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* @internal |
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*/ |
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class InputValidationMiddleware |
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{ |
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/** @var callable */ |
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private $nextHandler; |
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/** @var array */ |
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private $mandatoryAttributeList; |
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/** @var Service */ |
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private $service; |
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/** |
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* Create a middleware wrapper function. |
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* |
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* @param Service $service |
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* @param array $mandatoryAttributeList |
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* @return callable */ |
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public static function wrap(Service $service, $mandatoryAttributeList) |
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{ |
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if (!\is_array($mandatoryAttributeList) || \array_filter($mandatoryAttributeList, 'is_string') !== $mandatoryAttributeList) { |
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throw new \InvalidArgumentException("The mandatory attribute list must be an array of strings"); |
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} |
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return function (callable $handler) use($service, $mandatoryAttributeList) { |
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return new self($handler, $service, $mandatoryAttributeList); |
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}; |
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} |
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public function __construct(callable $nextHandler, Service $service, $mandatoryAttributeList) |
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{ |
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$this->service = $service; |
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$this->nextHandler = $nextHandler; |
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$this->mandatoryAttributeList = $mandatoryAttributeList; |
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} |
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public function __invoke(CommandInterface $cmd) |
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{ |
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$nextHandler = $this->nextHandler; |
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$op = $this->service->getOperation($cmd->getName())->toArray(); |
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if (!empty($op['input']['shape'])) { |
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$service = $this->service->toArray(); |
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if (!empty($input = $service['shapes'][$op['input']['shape']])) { |
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if (!empty($input['required'])) { |
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foreach ($input['required'] as $key => $member) { |
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if (\in_array($member, $this->mandatoryAttributeList)) { |
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$argument = \is_string($cmd[$member]) ? \trim($cmd[$member]) : $cmd[$member]; |
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if ($argument === '' || $argument === null) { |
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$commandName = $cmd->getName(); |
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throw new \InvalidArgumentException("The {$commandName} operation requires non-empty parameter: {$member}"); |
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} |
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} |
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} |
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} |
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} |
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} |
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return $nextHandler($cmd); |
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} |
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} |
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