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  1. <?php
  2.  
  3. /*
  4.  * OIDplus 2.0
  5.  * Copyright 2019 - 2023 Daniel Marschall, ViaThinkSoft
  6.  *
  7.  * Licensed under the Apache License, Version 2.0 (the "License");
  8.  * you may not use this file except in compliance with the License.
  9.  * You may obtain a copy of the License at
  10.  *
  11.  *     http://www.apache.org/licenses/LICENSE-2.0
  12.  *
  13.  * Unless required by applicable law or agreed to in writing, software
  14.  * distributed under the License is distributed on an "AS IS" BASIS,
  15.  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16.  * See the License for the specific language governing permissions and
  17.  * limitations under the License.
  18.  */
  19.  
  20. namespace ViaThinkSoft\OIDplus;
  21.  
  22. // phpcs:disable PSR1.Files.SideEffects
  23. \defined('INSIDE_OIDPLUS') or die;
  24. // phpcs:enable PSR1.Files.SideEffects
  25.  
  26. class OIDplusAuthPluginBCrypt extends OIDplusAuthPlugin {
  27.  
  28.         public function init($html=true) {
  29.                 OIDplus::config()->prepareConfigKey('ra_bcrypt_cost', 'How complex should the BCrypt hash of RA passwords be? (Only for plugin A3_bcrypt; values 4-31, default 10)', 10, OIDplusConfig::PROTECTION_EDITABLE, function($value) {
  30.                         if (empty($value) || !is_int($value) || ($value<4) || ($value>31)) {
  31.                                 throw new OIDplusException(_L('Invalid value for "cost" (must be 4-31, default 10).'));
  32.                         }
  33.                 });
  34.         }
  35.  
  36.         public function verify(OIDplusRAAuthInfo $authInfo, $check_password) {
  37.                 $authKey = $authInfo->getAuthKey();
  38.                 $salt = $authInfo->getSalt();
  39.                 @list($s_authmethod, $s_authkey) = explode('#', $authKey, 2);
  40.  
  41.                 if ($s_authmethod == 'A3') {
  42.                         // A3#$2a$10$N9qo8uLOickgx2ZMRZoMyeIjZAgcfl7p92ldGxad68LJZdL17lhWy
  43.                         //    \__/\/ \____________________/\_____________________________/
  44.                         //    Alg Cost   Salt (128 bit)             Hash
  45.                         if ($salt != '') {
  46.                                 throw new OIDplusException(_L('This function does not accept a salt'));
  47.                         }
  48.                         return password_verify($check_password, $s_authkey);
  49.                 } else {
  50.                         // Invalid auth code
  51.                         return false;
  52.                 }
  53.         }
  54.  
  55.         public function generate($password): OIDplusRAAuthInfo {
  56.                 $s_salt = ''; // BCrypt automatically generates a salt
  57.                 $cost = OIDplus::config()->getValue('ra_bcrypt_cost', 10);
  58.                 $calc_authkey = 'A3#'.password_hash($password, PASSWORD_BCRYPT, array("cost" => $cost));
  59.                 return new OIDplusRAAuthInfo($s_salt, $calc_authkey);
  60.         }
  61.  
  62. }
  63.