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<?php |
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declare(strict_types=1); |
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namespace unreal4u\TelegramAPI; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\ClientInterface; |
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use GuzzleHttp\Exception\ClientException; |
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use GuzzleHttp\Exception\RequestException; |
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use React\Promise\PromiseInterface; |
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use Psr\Http\Message\ResponseInterface; |
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use Psr\Log\LoggerInterface; |
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use React\Promise\Deferred; |
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use unreal4u\TelegramAPI\InternalFunctionality\DummyLogger; |
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use unreal4u\TelegramAPI\InternalFunctionality\TelegramRawData; |
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class GuzzleRequestHandler implements RequestHandlerInterface |
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{ |
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/** |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* @var ClientInterface |
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*/ |
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protected $httpClient; |
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/** |
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* GuzzleRequestHandler constructor. |
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* |
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* @param ClientInterface $client |
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* @param LoggerInterface $logger |
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*/ |
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public function __construct(ClientInterface $client = null, LoggerInterface $logger = null) |
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{ |
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if ($logger === null) { |
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$logger = new DummyLogger(); |
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} |
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$this->logger = $logger; |
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if ($client === null) { |
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$client = new Client(); |
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} |
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$this->httpClient = $client; |
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} |
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/** |
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* @param string $uri |
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* |
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* @return ResponseInterface |
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*/ |
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public function get(string $uri): ResponseInterface |
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{ |
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return $this->httpClient->get($uri); |
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} |
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/** |
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* This is the method that actually makes the call, |
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* which can be easily overwritten so that our unit tests can work |
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* |
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* @param string $uri |
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* @param array $formData |
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* |
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* @return TelegramRawData |
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*/ |
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public function post(string $uri, array $formData = []): TelegramRawData |
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{ |
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$e = null; |
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$this->logger->debug('About to perform HTTP call to Telegram\'s API'); |
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try { |
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$response = $this->httpClient->post($uri, $formData); |
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$this->logger->debug('Got response back from Telegram, applying json_decode'); |
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} catch (ClientException $e) { |
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$response = $e->getResponse(); |
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// It can happen that we have a network problem, in such case, we can't do nothing about it, so rethrow |
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if (empty($response)) { |
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throw $e; |
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} |
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} finally { |
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return new TelegramRawData((string)$response->getBody(), $e); |
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} |
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} |
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/** |
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* @param string $uri |
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* @param array $formData |
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* |
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* @return PromiseInterface |
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*/ |
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public function postAsync(string $uri, array $formData = []): PromiseInterface |
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{ |
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$this->logger->debug('About to perform async HTTP call to Telegram\'s API'); |
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$deferred = new Deferred(); |
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$promise = $this->httpClient->postAsync($uri, $formData); |
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$promise->then( |
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function (ResponseInterface $response) use ($deferred) { |
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$deferred->resolve(new TelegramRawData((string)$response->getBody())); |
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}, |
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function (RequestException $exception) use ($deferred) { |
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if (!empty($exception->getResponse()->getBody())) { |
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$deferred->resolve(new TelegramRawData((string)$exception->getResponse() |
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->getBody(), $exception)); |
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} else { |
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$deferred->reject($exception); |
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} |
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} |
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); |
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return $deferred->promise(); |
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} |
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/** |
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* @param string $uri |
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* |
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* @return PromiseInterface |
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*/ |
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public function getAsync(string $uri): PromiseInterface |
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{ |
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$this->logger->debug('About to perform async HTTP call to Telegram\'s API'); |
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$deferred = new Deferred(); |
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$promise = $this->httpClient->getAsync($uri); |
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$promise->then( |
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function (ResponseInterface $response) use ($deferred) { |
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$deferred->resolve(new TelegramRawData((string)$response->getBody())); |
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}, |
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function (RequestException $exception) use ($deferred) { |
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if (!empty($exception->getResponse()->getBody())) { |
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$deferred->resolve(new TelegramRawData((string)$exception->getResponse() |
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->getBody(), $exception)); |
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} else { |
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$deferred->reject($exception); |
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} |
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} |
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); |
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return $deferred->promise(); |
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} |
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} |
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