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<?php |
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namespace TelegramBot; |
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use React\HttpClient\Client; |
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use React\HttpClient\Request; |
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use React\HttpClient\Response; |
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class Bot implements BotInterface { |
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use \League\Event\EmitterTrait; |
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/** @var string */ |
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private $botToken; |
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/** @var int */ |
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private $offset; |
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/** @var \React\HttpClient\Client */ |
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private $client; |
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/** |
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* @param string $botToken |
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*/ |
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public function __construct(string $botToken) |
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{ |
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$this->botToken = $botToken; |
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} |
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/** |
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* @param \React\HttpClient\Client |
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*/ |
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public function setClient(Client $client) { |
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$this->client = $client; |
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} |
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public function poll() { |
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$request = $this->getMassagesRequest(); |
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$request->on('response', [$this, '_handlePollResponse']); |
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$request->end(); |
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} |
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/** |
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* @param \React\HttpClient\Response $response |
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*/ |
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public function _handlePollResponse(Response $response) { |
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$response->on('data', [$this, '_handlePollData']); |
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$response->on('error', [$this, '_handlePollError']); |
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} |
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/** |
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* @param array $data |
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* @param \React\HttpClient\Response $response |
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*/ |
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public function _handlePollData($data, $response) { |
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$data = json_decode($data, 1); |
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$messageData = $data['result']; |
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foreach ($messageData as $message) { |
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if (!isset($message['message']['text'])) { |
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continue; |
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} |
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$this->getEmitter()->emit( |
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$message['message']['text'], |
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['message' => $message, 'responder' => $this->getResponder($message)] |
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); |
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$this->setUpdateId($message['update_id']); |
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} |
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} |
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/** |
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* @param \React\HttpClient\Response $response |
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*/ |
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public function _handlePollError(Response $response) { |
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print('Error: '); |
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print_r($response); |
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} |
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/** |
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* @param string $message |
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*/ |
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public function getResponder($message) { |
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return function ($text) use($message){ |
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$this->sendResponse($text, $message); |
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}; |
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} |
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public function getMassagesRequest(): Request { |
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return $this->client->request( |
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'GET', |
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$this->botCommand('getUpdates', ['offset' => $this->offset]) |
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); |
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} |
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public function sendResponse(string $responseText, array $incomingMessage) { |
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$responseData = $this->postDataEncoder([ |
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'chat_id' => $incomingMessage['message']['chat']['id'], |
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'reply_to_message_id' => $incomingMessage['message']['message_id'], |
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'text' => $responseText |
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]); |
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$responseCall = $this->client->request( |
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'POST', |
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$this->botCommand('sendMessage'), |
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$this->getResponseHeaders($responseData) |
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); |
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$responseCall->end($responseData); |
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} |
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public function setUpdateId($id) { |
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$this->offset = $id+1; |
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} |
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private function botCommand(string $command, array $params = []) :string { |
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$params = (count($params)) ? '?' . $this->postDataEncoder($params) : ''; |
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return $this->assembleUri($command, $params); |
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} |
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private function assembleUri($command, $params) :string { |
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return sprintf( |
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'https://api.telegram.org/bot%s/%s%s', |
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$this->botToken, |
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$command, |
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$params |
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); |
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} |
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public function getResponseHeaders(string $responseString) :array { |
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return [ |
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'Content-Type' => 'application/x-www-form-urlencoded', |
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'Content-Length' => strlen($responseString) |
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]; |
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} |
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private function postDataEncoder(array $data) :string { |
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$string = ''; |
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foreach ($data as $k => $v) { |
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$string .= $k . '=' . urlencode($v) . '&'; |
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} |
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return $string; |
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} |
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} |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.