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<?php |
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declare(strict_types=1); |
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namespace Prozorov\DataVerification; |
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use Prozorov\DataVerification\Exceptions\{LimitException, VerificationException}; |
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use Prozorov\DataVerification\Models\Code; |
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use Prozorov\DataVerification\Types\Address; |
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use Prozorov\DataVerification\Events\OtpGenerationEvent; |
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class CodeManager |
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{ |
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/** |
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* @var Configuration $config |
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*/ |
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protected $config; |
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public function __construct(Configuration $config) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* generate. |
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* |
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* @access public |
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* @param Address $address |
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* @param array $data Default: null |
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* @param string $fakeCode Default: null |
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* @return Code |
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*/ |
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public function generate(Address $address, array $data = null): Code |
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{ |
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$this->checkCreationLimit($address); |
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$event = new OtpGenerationEvent('generating_one_time_password', $address); |
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$this->config->emitEvent($event); |
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$otp = $event->isModified() ? $event->getOtp() : $this->generateOTP(); |
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$verificationCode = md5((string) strtotime('now')); |
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$code = new Code(); |
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$code->setVerificationCode($verificationCode) |
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->setOneTimePass($otp) |
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->setAddress($address); |
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if (!empty($data)) { |
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$code->setVerificationData($data); |
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} |
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$this->config->getCodeRepo()->save($code); |
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return $code; |
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} |
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/** |
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* verify. |
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* |
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* @access public |
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* @param string $verificationCode |
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* @param string $pass |
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* @return Code |
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*/ |
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public function verify(string $verificationCode, string $pass): Code |
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{ |
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$seconds = $this->config->getPasswordValidationPeriod(); |
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$createdAfter = (new \Datetime())->sub(new \DateInterval('PT'.$seconds.'S')); |
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$code = $this->config->getCodeRepo()->getOneUnvalidatedByCode($verificationCode, $createdAfter); |
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if (!$code) { |
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throw new \OutOfBoundsException('Данные не найдены'); |
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} |
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if ($code->getOneTimePass() !== $pass) { |
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$code->incrementAttempts(); |
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$this->config->getCodeRepo()->save($code); |
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throw new VerificationException('Некорректно указан код'); |
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} |
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if ($this->config->getAttempts() <= $code->getAttempts()) { |
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throw new LimitException('Превышен лимит'); |
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} |
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$code->setValidated(); |
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$this->config->getCodeRepo()->save($code); |
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return $code; |
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} |
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/** |
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* generateOTP. |
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* |
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* @access protected |
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* @param string $fakeCode Default: null |
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* @return string |
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*/ |
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protected function generateOTP(): string |
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{ |
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$symbols = $this->config->getAllowedSymbols(); |
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$length = $this->config->getPassLength(); |
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$otp = ''; |
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for ($i = 1; $i <= $length; $i++) { |
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$otp .= $symbols[rand(0, (count($symbols) - 1))]; |
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} |
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return $otp; |
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} |
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/** |
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* checkCreationLimit. |
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* |
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* @access protected |
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* @param Address $address |
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* @return void |
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*/ |
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protected function checkCreationLimit(Address $address): void |
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{ |
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$threshold = $this->config->getCreationCodeThreshold(); |
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$createdAfter = (new \Datetime())->sub(new \DateInterval('PT'.$threshold.'S')); |
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if ($this->config->getCodeRepo()->getLastCodeForAddress($address, $createdAfter)) { |
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throw new LimitException('Превышен лимит'); |
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} |
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$createdAfter = (new \Datetime())->sub(new \DateInterval('PT3600S')); |
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$attempts = $this->config->getCodeRepo()->getCodesCountForAddress($address, $createdAfter); |
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if ($attempts > 0) { |
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$limitPerHour = $this->config->getLimitPerHour(); |
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if ($limitPerHour < $attempts) { |
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throw new LimitException('Превышен лимит обращений в час'); |
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} |
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} |
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} |
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} |
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artem-prozorov /
data-locker
