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2 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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511 | daniel-mar | 5 | * Copyright 2019 - 2021 Daniel Marschall, ViaThinkSoft |
2 | daniel-mar | 6 | * |
7 | * Licensed under the Apache License, Version 2.0 (the "License"); |
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8 | * you may not use this file except in compliance with the License. |
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9 | * You may obtain a copy of the License at |
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10 | * |
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11 | * http://www.apache.org/licenses/LICENSE-2.0 |
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12 | * |
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13 | * Unless required by applicable law or agreed to in writing, software |
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14 | * distributed under the License is distributed on an "AS IS" BASIS, |
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15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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16 | * See the License for the specific language governing permissions and |
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17 | * limitations under the License. |
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18 | */ |
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19 | |||
511 | daniel-mar | 20 | if (!defined('INSIDE_OIDPLUS')) die(); |
21 | |||
2 | daniel-mar | 22 | class OIDplusAuthUtils { |
23 | |||
566 | daniel-mar | 24 | // Useful functions |
25 | |||
457 | daniel-mar | 26 | public static function getRandomBytes($len) { |
27 | if (function_exists('openssl_random_pseudo_bytes')) { |
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28 | $a = openssl_random_pseudo_bytes($len); |
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29 | if ($a) return $a; |
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30 | } |
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31 | |||
465 | daniel-mar | 32 | if (function_exists('mcrypt_create_iv')) { |
466 | daniel-mar | 33 | $a = bin2hex(mcrypt_create_iv($len, MCRYPT_DEV_URANDOM)); |
465 | daniel-mar | 34 | if ($a) return $a; |
35 | } |
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36 | |||
457 | daniel-mar | 37 | if (function_exists('random_bytes')) { |
38 | $a = random_bytes($len); |
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39 | if ($a) return $a; |
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40 | } |
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41 | |||
42 | // Fallback to non-secure RNG |
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43 | $a = ''; |
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44 | while (strlen($a) < $len*2) { |
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45 | $a .= sha1(uniqid(mt_rand(), true)); |
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46 | } |
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47 | $a = substr($a, 0, $len*2); |
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48 | return hex2bin($a); |
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49 | } |
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50 | |||
566 | daniel-mar | 51 | // Content provider |
2 | daniel-mar | 52 | |
566 | daniel-mar | 53 | protected function getAuthContentStore() { |
54 | static $contentProvider = null; |
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2 | daniel-mar | 55 | |
566 | daniel-mar | 56 | if (is_null($contentProvider)) { |
57 | if (isset($_REQUEST['OIDPLUS_AUTH_JWT'])) { |
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58 | $contentProvider = new OIDplusAuthContentStoreJWT(); |
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59 | $contentProvider->loadJWT($_REQUEST['OIDPLUS_AUTH_JWT']); |
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60 | } else if (isset($_REQUEST['batch_ajax_unlock_key'])) { |
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61 | $contentProvider = new OIDplusAuthContentStoreDummy(); |
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62 | } else { |
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63 | $contentProvider = new OIDplusAuthContentStoreSession(); |
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64 | } |
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65 | } |
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2 | daniel-mar | 66 | |
566 | daniel-mar | 67 | return $contentProvider; |
2 | daniel-mar | 68 | } |
69 | |||
566 | daniel-mar | 70 | // RA authentication functions |
2 | daniel-mar | 71 | |
566 | daniel-mar | 72 | public function raLogin($email) { |
73 | return $this->getAuthContentStore()->raLogin($email); |
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74 | } |
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2 | daniel-mar | 75 | |
566 | daniel-mar | 76 | public function raLogout($email) { |
77 | return $this->getAuthContentStore()->raLogout($email); |
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2 | daniel-mar | 78 | } |
79 | |||
566 | daniel-mar | 80 | public function raCheckPassword($ra_email, $password) { |
329 | daniel-mar | 81 | $ra = new OIDplusRA($ra_email); |
453 | daniel-mar | 82 | |
459 | daniel-mar | 83 | $authInfo = $ra->getAuthInfo(); |
453 | daniel-mar | 84 | |
85 | $plugins = OIDplus::getAuthPlugins(); |
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86 | if (count($plugins) == 0) { |
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87 | throw new OIDplusException(_L('No RA authentication plugins found')); |
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88 | } |
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89 | foreach ($plugins as $plugin) { |
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459 | daniel-mar | 90 | if ($plugin->verify($authInfo, $password)) return true; |
453 | daniel-mar | 91 | } |
92 | |||
93 | return false; |
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329 | daniel-mar | 94 | } |
95 | |||
566 | daniel-mar | 96 | public function raNumLoggedIn() { |
97 | return $this->getAuthContentStore()->raNumLoggedIn(); |
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85 | daniel-mar | 98 | } |
99 | |||
566 | daniel-mar | 100 | public function raLogoutAll() { |
101 | return $this->getAuthContentStore()->raLogoutAll(); |
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2 | daniel-mar | 102 | } |
103 | |||
566 | daniel-mar | 104 | public function loggedInRaList() { |
567 | daniel-mar | 105 | if (OIDplus::authUtils()->forceAllLoggedOut()) { |
106 | return array(); |
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107 | } else { |
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108 | return $this->getAuthContentStore()->loggedInRaList(); |
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109 | } |
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2 | daniel-mar | 110 | } |
111 | |||
566 | daniel-mar | 112 | public function isRaLoggedIn($email) { |
113 | return $this->getAuthContentStore()->isRaLoggedIn($email); |
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2 | daniel-mar | 114 | } |
115 | |||
14 | daniel-mar | 116 | // Admin authentication functions |
2 | daniel-mar | 117 | |
566 | daniel-mar | 118 | public function adminLogin() { |
119 | return $this->getAuthContentStore()->adminLogin(); |
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2 | daniel-mar | 120 | } |
121 | |||
566 | daniel-mar | 122 | public function adminLogout() { |
123 | return $this->getAuthContentStore()->adminLogout(); |
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2 | daniel-mar | 124 | } |
125 | |||
566 | daniel-mar | 126 | public function adminCheckPassword($password) { |
421 | daniel-mar | 127 | $passwordData = OIDplus::baseConfig()->getValue('ADMIN_PASSWORD', ''); |
128 | if (empty($passwordData)) { |
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360 | daniel-mar | 129 | throw new OIDplusException(_L('No admin password set in %1','userdata/baseconfig/config.inc.php')); |
261 | daniel-mar | 130 | } |
456 | daniel-mar | 131 | |
421 | daniel-mar | 132 | if (strpos($passwordData, '$') !== false) { |
456 | daniel-mar | 133 | if ($passwordData[0] == '$') { |
134 | // Version 3: BCrypt |
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135 | return password_verify($password, $passwordData); |
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136 | } else { |
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457 | daniel-mar | 137 | // Version 2: SHA3-512 with salt |
456 | daniel-mar | 138 | list($s_salt, $hash) = explode('$', $passwordData, 2); |
139 | } |
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421 | daniel-mar | 140 | } else { |
456 | daniel-mar | 141 | // Version 1: SHA3-512 without salt |
421 | daniel-mar | 142 | $s_salt = ''; |
143 | $hash = $passwordData; |
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144 | } |
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145 | return strcmp(sha3_512($s_salt.$password, true), base64_decode($hash)) === 0; |
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2 | daniel-mar | 146 | } |
147 | |||
566 | daniel-mar | 148 | public function isAdminLoggedIn() { |
567 | daniel-mar | 149 | if (OIDplus::authUtils()->forceAllLoggedOut()) { |
150 | return false; |
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151 | } else { |
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152 | return $this->getAuthContentStore()->isAdminLoggedIn(); |
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153 | } |
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2 | daniel-mar | 154 | } |
155 | |||
310 | daniel-mar | 156 | // Authentication keys for validating arguments (e.g. sent by mail) |
2 | daniel-mar | 157 | |
158 | public static function makeAuthKey($data) { |
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424 | daniel-mar | 159 | $data = OIDplus::baseConfig()->getValue('SERVER_SECRET') . '/AUTHKEY/' . $data; |
421 | daniel-mar | 160 | $calc_authkey = sha3_512($data, false); |
2 | daniel-mar | 161 | return $calc_authkey; |
162 | } |
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163 | |||
164 | public static function validateAuthKey($data, $auth_key) { |
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421 | daniel-mar | 165 | return strcmp(self::makeAuthKey($data), $auth_key) === 0; |
2 | daniel-mar | 166 | } |
167 | |||
329 | daniel-mar | 168 | // "Veto" functions to force logout state |
169 | |||
170 | public static function forceAllLoggedOut() { |
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171 | if (isset($_SERVER['SCRIPT_FILENAME']) && (basename($_SERVER['SCRIPT_FILENAME']) == 'sitemap.php')) { |
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172 | // The sitemap may not contain any confidential information, |
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173 | // even if the user is logged in, because the admin could |
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174 | // accidentally copy-paste the sitemap to a |
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175 | // search engine control panel while they are logged in |
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176 | return true; |
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177 | } else { |
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178 | return false; |
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179 | } |
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180 | } |
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427 | daniel-mar | 181 | |
424 | daniel-mar | 182 | // CSRF functions |
427 | daniel-mar | 183 | |
424 | daniel-mar | 184 | private $enable_csrf = true; |
427 | daniel-mar | 185 | |
424 | daniel-mar | 186 | public function enableCSRF() { |
187 | $this->enable_csrf = true; |
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188 | } |
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427 | daniel-mar | 189 | |
424 | daniel-mar | 190 | public function disableCSRF() { |
191 | $this->enable_csrf = false; |
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192 | } |
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427 | daniel-mar | 193 | |
424 | daniel-mar | 194 | public function genCSRFToken() { |
564 | daniel-mar | 195 | return bin2hex(self::getRandomBytes(64)); |
424 | daniel-mar | 196 | } |
427 | daniel-mar | 197 | |
424 | daniel-mar | 198 | public function checkCSRF() { |
427 | daniel-mar | 199 | if (!$this->enable_csrf) return; |
564 | daniel-mar | 200 | if (!isset($_REQUEST['csrf_token']) || !isset($_COOKIE['csrf_token']) || ($_REQUEST['csrf_token'] !== $_COOKIE['csrf_token'])) { |
201 | throw new OIDplusException(_L('Wrong CSRF Token')); |
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424 | daniel-mar | 202 | } |
203 | } |
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329 | daniel-mar | 204 | |
421 | daniel-mar | 205 | // Generate RA passwords |
206 | |||
461 | daniel-mar | 207 | public static function raGeneratePassword($password): OIDplusRAAuthInfo { |
453 | daniel-mar | 208 | $def_method = OIDplus::config()->getValue('default_ra_auth_method'); |
209 | |||
210 | $plugins = OIDplus::getAuthPlugins(); |
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211 | foreach ($plugins as $plugin) { |
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212 | if (basename($plugin->getPluginDirectory()) === $def_method) { |
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213 | return $plugin->generate($password); |
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214 | } |
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215 | } |
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216 | throw new OIDplusException(_L('Default RA auth method/plugin "%1" not found',$def_method)); |
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421 | daniel-mar | 217 | } |
218 | |||
219 | // Generate admin password |
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220 | |||
221 | /* Nothing here; the admin password will be generated in setup_base.js */ |
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222 | |||
223 | } |