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<?php |
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/* |
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* This file is part of the LineMob package. |
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* |
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* (c) Ishmael Doss <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace LineMob\Core; |
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use League\Tactician\CommandBus; |
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use LineMob\Core\Command\FallbackCommand; |
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use LineMob\Core\Exception\DerailException; |
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use LineMob\Core\Sender\SenderInterface; |
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/** |
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* @author Ishmael Doss <[email protected]> |
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*/ |
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class Receiver |
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{ |
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/** |
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* @var SenderInterface |
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*/ |
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private $sender; |
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/** |
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* @var CommandBus |
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*/ |
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private $commandBus; |
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/** |
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* @var RegistryInterface |
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*/ |
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private $registry; |
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/** |
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* @var CommandHandlerInterface |
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*/ |
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private $handler; |
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public function __construct( |
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SenderInterface $sender, |
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RegistryInterface $registry, |
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CommandBus $commandBus, |
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CommandHandlerInterface $handler |
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) { |
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$this->sender = $sender; |
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$this->registry = $registry; |
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$this->commandBus = $commandBus; |
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$this->handler = $handler; |
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} |
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/** |
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* @param $body |
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* @param $signature |
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* |
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* @return bool |
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*/ |
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public function validate($body, $signature) |
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{ |
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return $this->sender->validateSignature($body, $signature); |
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} |
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/** |
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* @param array $eventData |
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* |
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* @return string |
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*/ |
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private function captureReceiveMessageText(array $eventData) |
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{ |
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$type = strtolower(@$eventData['message']['type']); |
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switch ($type) { |
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case Constants::REVEIVE_TYPE_MESSAGE_TEXT: |
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return @$eventData['message']['text']; |
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default: |
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throw new \RuntimeException("Unknown message type `$type`."); |
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} |
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} |
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/** |
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* @param array $eventData |
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* |
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* @return Input |
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*/ |
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private function captureInput(array $eventData) |
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{ |
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$inputData = [ |
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'text' => FallbackCommand::CMD, |
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]; |
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if (empty($eventData['replyToken'])) { |
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throw new \InvalidArgumentException("Require `replyToken` to run."); |
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} |
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if (empty($eventData['source']['userId'])) { |
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throw new \InvalidArgumentException("Require `userId` to run."); |
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} |
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$inputData['replyToken'] = $eventData['replyToken']; |
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$inputData['userId'] = $eventData['source']['userId']; |
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$type = strtolower(@$eventData['type']); |
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switch ($type) { |
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case Constants::REVEIVE_TYPE_FOLLOW: |
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$inputData['text'] = ':follow'; |
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break; |
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case Constants::REVEIVE_TYPE_MESSAGE: |
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$inputData['text'] = $this->captureReceiveMessageText($eventData); |
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break; |
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default: |
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throw new \RuntimeException("Unsupported event type `$type`."); |
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} |
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return new Input($inputData); |
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} |
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/** |
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* @param $payload |
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* |
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* @return array |
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*/ |
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public function handle($payload) |
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{ |
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$data = json_decode($payload, true) ?: []; |
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$events = (array)@$data['events']; |
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$results = []; |
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try { |
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foreach ($events as $event) { |
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$input = $this->captureInput($event); |
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$command = $this->registry->findCommand($input); |
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$command->input = $input; |
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$results[] = $this->commandBus->handle($command); |
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} |
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} catch (DerailException $e) { |
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$results[] = $this->handler->handle($e->command); |
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} catch (\Exception $e) { |
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$results[] = sprintf('ERROR: %s', $e->getMessage()); |
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} |
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return $results; |
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} |
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} |
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linemob /
core
