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<?php |
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/** |
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* Copyright 2014 SURFnet bv |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace Surfnet\YubikeyApiClient; |
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use Surfnet\YubikeyApiClient\Exception\InvalidArgumentException; |
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class Otp |
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{ |
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const OTP_REGEXP_QWERTY = '/^((.*):)?(([cbdefghijklnrtuv]{0,16})([cbdefghijklnrtuv]{32}))$/i'; |
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const OTP_REGEXP_DVORAK = '/^((.*):)?(([jxe\.uidchtnbpygk]{0,16})([jxe\.uidchtnbpygk]{32}))$/i'; |
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/** @var string */ |
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public $otp; |
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/** @var string */ |
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public $password; |
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/** @var string */ |
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public $publicId; |
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/** @var string */ |
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public $cipherText; |
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/** |
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* @param string $string |
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* @return self |
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* @throws InvalidArgumentException Thrown when the given string is not an OTP. |
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*/ |
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public static function fromString($string) |
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{ |
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$otp = new self; |
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if (!is_string($string)) { |
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throw new InvalidArgumentException('Given OTP is not a string.'); |
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} |
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if (preg_match(self::OTP_REGEXP_QWERTY, $string, $matches)) { |
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$otp->otp = strtolower($matches[3]); |
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$otp->password = $matches[2]; |
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$otp->publicId = strtolower($matches[4]); |
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$otp->cipherText = strtolower($matches[5]); |
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} elseif (preg_match(self::OTP_REGEXP_DVORAK, $string, $matches)) { |
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$otp->otp = strtr(strtolower($matches[3]), 'jxe.uidchtnbpygk', 'cbdefghijklnrtuv'); |
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$otp->password = $matches[2]; |
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$otp->publicId = strtr(strtolower($matches[4]), 'jxe.uidchtnbpygk', 'cbdefghijklnrtuv'); |
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$otp->cipherText = strtr(strtolower($matches[5]), 'jxe.uidchtnbpygk', 'cbdefghijklnrtuv'); |
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} else { |
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throw new InvalidArgumentException('Given string is not a valid OTP.'); |
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} |
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return $otp; |
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} |
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/** |
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* @param string $string |
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* @return bool |
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*/ |
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public static function isValid($string) |
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{ |
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return preg_match(self::OTP_REGEXP_QWERTY, $string, $matches) |
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|| preg_match(self::OTP_REGEXP_DVORAK, $string, $matches); |
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} |
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} |
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SURFnet /
yubikey-api-client
