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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 Psr\Log\LoggerInterface; |
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use React\Promise\PromiseInterface; |
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use unreal4u\Dummy\Logger; |
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use unreal4u\TelegramAPI\Abstracts\TelegramMethods; |
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use unreal4u\TelegramAPI\InternalFunctionality\PostOptionsConstructor; |
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use unreal4u\TelegramAPI\InternalFunctionality\TelegramDocument; |
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use unreal4u\TelegramAPI\InternalFunctionality\TelegramResponse; |
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use unreal4u\TelegramAPI\Telegram\Types\File; |
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/** |
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* The main API which does it all |
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*/ |
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class TgLog |
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{ |
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/** |
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* @var RequestHandlerInterface |
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*/ |
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protected $requestHandler; |
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/** |
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* @var PostOptionsConstructor |
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*/ |
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protected $formConstructor; |
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/** |
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* Stores the token |
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* @var string |
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*/ |
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private $botToken; |
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/** |
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* Contains an instance to a PSR-3 compatible logger |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* Stores the API URL from Telegram |
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* @var string |
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*/ |
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private $apiUrl; |
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/** |
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* @var string |
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*/ |
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protected $methodName = ''; |
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/** |
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* TelegramLog constructor. |
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* |
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* @param string $botToken |
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* @param RequestHandlerInterface $handler |
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* @param LoggerInterface $logger |
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*/ |
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public function __construct(string $botToken, RequestHandlerInterface $handler, LoggerInterface $logger = null) |
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{ |
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$this->botToken = $botToken; |
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// Initialize new dummy logger (PSR-3 compatible) if not injected |
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if ($logger === null) { |
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$logger = new Logger(); |
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} |
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$this->logger = $logger; |
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$this->requestHandler = $handler; |
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$this->formConstructor = new PostOptionsConstructor(); |
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$this->apiUrl = 'https://api.telegram.org/bot' . $this->botToken . '/'; |
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} |
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/** |
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* Performs the request to the Telegram servers |
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* |
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* @param TelegramMethods $method |
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* |
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* @return PromiseInterface |
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* @throws \unreal4u\TelegramAPI\Exceptions\MissingMandatoryField |
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*/ |
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public function performApiRequest(TelegramMethods $method): PromiseInterface |
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{ |
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$this->logger->debug('Request for async API call, resetting internal values', [\get_class($method)]); |
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$this->resetObjectValues(); |
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$option = $this->formConstructor->constructOptions($method); |
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return $this->sendRequestToTelegram($method, $option) |
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->then(function (TelegramResponse $response) use ($method) { |
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return $method::bindToObject($response, $this->logger); |
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}, function ($error) { |
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$this->logger->error($error); |
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throw $error; |
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}); |
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} |
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/** |
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* @param File $file |
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* |
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* @return PromiseInterface |
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*/ |
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public function downloadFile(File $file): PromiseInterface |
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{ |
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$url = 'https://api.telegram.org/file/bot' . $this->botToken . '/' . $file->file_path; |
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$this->logger->debug('About to perform request to begin downloading file'); |
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return $this->requestHandler->get($url)->then( |
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function (TelegramResponse $rawData) { |
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return new TelegramDocument($rawData); |
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} |
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); |
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} |
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/** |
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* This is the method that actually makes the call, which can be easily overwritten so that our unit tests can work |
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* |
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* @param TelegramMethods $method |
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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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protected function sendRequestToTelegram(TelegramMethods $method, 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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return $this->requestHandler->post($this->composeApiMethodUrl($method), $formData); |
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} |
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/** |
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* Resets everything to the default values |
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* |
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* @return TgLog |
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*/ |
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final protected function resetObjectValues(): TgLog |
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{ |
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$this->formConstructor->formType = 'application/x-www-form-urlencoded'; |
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return $this; |
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} |
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/** |
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* Builds up the URL with which we can work with |
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* |
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* All methods in the Bot API are case-insensitive. |
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* All queries must be made using UTF-8. |
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* |
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* @see https://core.telegram.org/bots/api#making-requests |
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* |
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* @param TelegramMethods $call |
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* @return string |
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*/ |
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protected function composeApiMethodUrl(TelegramMethods $call): string |
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{ |
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$completeClassName = \get_class($call); |
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$this->methodName = substr($completeClassName, strrpos($completeClassName, '\\') + 1); |
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$this->logger->info('About to perform API request', ['method' => $this->methodName]); |
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return $this->apiUrl . $this->methodName; |
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} |
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} |
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unreal4u /
telegram-api
