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<?php |
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namespace pschocke\TelegramLoginWidget; |
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use Illuminate\Http\Request; |
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use Illuminate\Support\Collection; |
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use pschocke\TelegramLoginWidget\Exceptions\HashValidationException; |
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use pschocke\TelegramLoginWidget\Exceptions\ResponseOutdatedException; |
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use pschocke\TelegramLoginWidget\Exceptions\TelegramException; |
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class TelegramLoginWidget |
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{ |
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/** |
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* @param $response |
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* @return bool|Collection |
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*/ |
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public function validate($response) |
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{ |
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try { |
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return $this->validateWithError($response); |
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} catch (TelegramException $exception) { |
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} |
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return false; |
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} |
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/** |
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* @param $response |
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* @return Collection |
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* |
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* @throws HashValidationException |
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* @throws ResponseOutdatedException |
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*/ |
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public function validateWithError($response): Collection |
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{ |
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$response = $this->convertResponseToCollection($response); |
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$response = $this->checkAndGetResponseData($response); |
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return $this->checkHash($response); |
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} |
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/** |
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* @param Collection $collection |
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* @return Collection |
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*/ |
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private function checkAndGetResponseData(Collection $collection): Collection |
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{ |
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$requiredAttributes = ['id', 'first_name', 'last_name', 'username', 'photo_url', 'auth_date', 'hash']; |
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return $collection->only($requiredAttributes); |
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} |
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/** |
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* @param Collection $collection |
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* @return Collection |
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* |
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* @throws HashValidationException |
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* @throws ResponseOutdatedException |
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*/ |
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private function checkHash(Collection $collection): Collection |
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{ |
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$secret_key = hash('sha256', config('telegramloginwidget.bot-token'), true); |
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$data = $collection->except('hash'); |
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$data_check_string = $data->map(function ($item, $key) { |
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return $key.'='.$item; |
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}) |
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->values() |
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->sort() |
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->implode("\n"); |
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$hash = hash_hmac('sha256', $data_check_string, $secret_key); |
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if (strcmp($hash, $collection->get('hash')) !== 0) { |
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throw new HashValidationException; |
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} |
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if (config('telegramloginwidget.validate-auth-date') && time() - $collection->get('auth_date') > 86400) { |
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throw new ResponseOutdatedException; |
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} |
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return $data; |
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} |
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/** |
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* @param $response |
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* @return Collection |
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*/ |
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private function convertResponseToCollection($response): Collection |
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{ |
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if ($response instanceof Request) { |
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return collect($response->all()); |
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} |
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return Collection::wrap($response); |
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} |
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} |
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pschocke /
laravel-telegram-login-widget
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