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2 | daniel-mar | 1 | <?php |
2 | |||
3 | /* |
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4 | * OIDplus 2.0 |
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1103 | daniel-mar | 5 | * Copyright 2019 - 2023 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 | |||
1050 | daniel-mar | 20 | use ViaThinkSoft\OIDplus\OIDplus; |
21 | |||
830 | daniel-mar | 22 | function is_privatekey_encrypted($privKey) { |
23 | return strpos($privKey,'BEGIN ENCRYPTED PRIVATE KEY') !== false; |
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24 | } |
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25 | |||
74 | daniel-mar | 26 | function verify_private_public_key($privKey, $pubKey) { |
721 | daniel-mar | 27 | if (!function_exists('openssl_public_encrypt')) return false; |
74 | daniel-mar | 28 | try { |
29 | if (empty($privKey)) return false; |
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30 | if (empty($pubKey)) return false; |
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453 | daniel-mar | 31 | $data = generateRandomString(25); |
386 | daniel-mar | 32 | $encrypted = ''; |
33 | $decrypted = ''; |
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74 | daniel-mar | 34 | if (!@openssl_public_encrypt($data, $encrypted, $pubKey)) return false; |
35 | if (!@openssl_private_decrypt($encrypted, $decrypted, $privKey)) return false; |
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36 | return $decrypted == $data; |
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1050 | daniel-mar | 37 | } catch (\Exception $e) { |
74 | daniel-mar | 38 | return false; |
39 | } |
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40 | } |
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41 | |||
830 | daniel-mar | 42 | function change_private_key_passphrase($privKeyOld, $passphrase_old, $passphrase_new) { |
43 | $pkey_config = array( |
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44 | //"digest_alg" => "sha512", |
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45 | //"private_key_bits" => 2048, |
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46 | //"private_key_type" => OPENSSL_KEYTYPE_RSA, |
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1050 | daniel-mar | 47 | "config" => class_exists("\\ViaThinkSoft\\OIDplus\\OIDplus") ? OIDplus::getOpenSslCnf() : @getenv('OPENSSL_CONF') |
830 | daniel-mar | 48 | ); |
49 | $privKeyNew = @openssl_pkey_get_private($privKeyOld, $passphrase_old); |
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50 | if ($privKeyNew === false) return false; |
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1116 | daniel-mar | 51 | if (!@openssl_pkey_export($privKeyNew, $privKeyNewExport, $passphrase_new, $pkey_config)) return false; |
52 | if ($privKeyNewExport === "") return false; |
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53 | return "$privKeyNewExport"; |
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830 | daniel-mar | 54 | } |
55 | |||
56 | function decrypt_private_key($privKey, $passphrase) { |
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57 | return change_private_key_passphrase($privKey, $passphrase, null); |
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58 | } |
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59 | |||
60 | function encrypt_private_key($privKey, $passphrase) { |
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61 | return change_private_key_passphrase($privKey, null, $passphrase); |
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62 | } |
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63 | |||
74 | daniel-mar | 64 | function smallhash($data) { // get 31 bits from SHA1. Values 0..2147483647 |
250 | daniel-mar | 65 | return (hexdec(substr(sha1($data),-4*2)) & 0x7FFFFFFF); |
74 | daniel-mar | 66 | } |
180 | daniel-mar | 67 | |
182 | daniel-mar | 68 | function split_firstname_lastname($name) { |
69 | $ary = explode(' ', $name); |
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70 | $last_name = array_pop($ary); |
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71 | $first_name = implode(' ', $ary); |
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72 | return array($first_name, $last_name); |
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73 | } |
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74 | |||
180 | daniel-mar | 75 | function originHeaders() { |
76 | // CORS |
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77 | // Author: Till Wehowski |
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426 | daniel-mar | 78 | // TODO: add to class OIDplus |
182 | daniel-mar | 79 | |
180 | daniel-mar | 80 | header("Access-Control-Allow-Credentials: true"); |
81 | header("Access-Control-Allow-Origin: ".strip_tags(((isset($_SERVER['HTTP_ORIGIN'])) ? $_SERVER['HTTP_ORIGIN'] : "*"))); |
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82 | |||
83 | header("Access-Control-Allow-Headers: If-None-Match, X-Requested-With, Origin, X-Frdlweb-Bugs, Etag, X-Forgery-Protection-Token, X-CSRF-Token"); |
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84 | |||
85 | if (isset($_SERVER['HTTP_ORIGIN'])) { |
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86 | header('X-Frame-Options: ALLOW-FROM '.$_SERVER['HTTP_ORIGIN']); |
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87 | } else { |
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88 | header_remove("X-Frame-Options"); |
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89 | } |
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90 | |||
91 | $expose = array('Etag', 'X-CSRF-Token'); |
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92 | foreach (headers_list() as $num => $header) { |
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93 | $h = explode(':', $header); |
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94 | $expose[] = trim($h[0]); |
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95 | } |
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96 | header("Access-Control-Expose-Headers: ".implode(',',$expose)); |
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97 | |||
98 | header("Vary: Origin"); |
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99 | } |
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236 | daniel-mar | 100 | |
346 | daniel-mar | 101 | if (!function_exists('mb_wordwrap')) { |
102 | function mb_wordwrap($str, $width = 75, $break = "\n", $cut = false) { |
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103 | // https://stackoverflow.com/a/4988494/488539 |
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104 | $lines = explode($break, $str); |
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105 | foreach ($lines as &$line) { |
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106 | $line = rtrim($line); |
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107 | if (mb_strlen($line) <= $width) { |
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108 | continue; |
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109 | } |
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110 | $words = explode(' ', $line); |
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111 | $line = ''; |
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112 | $actual = ''; |
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113 | foreach ($words as $word) { |
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114 | if (mb_strlen($actual.$word) <= $width) { |
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115 | $actual .= $word.' '; |
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116 | } else { |
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117 | if ($actual != '') { |
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118 | $line .= rtrim($actual).$break; |
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119 | } |
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120 | $actual = $word; |
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121 | if ($cut) { |
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122 | while (mb_strlen($actual) > $width) { |
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123 | $line .= mb_substr($actual, 0, $width).$break; |
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124 | $actual = mb_substr($actual, $width); |
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125 | } |
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126 | } |
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127 | $actual .= ' '; |
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128 | } |
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129 | } |
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130 | $line .= trim($actual); |
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131 | } |
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132 | return implode($break, $lines); |
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133 | } |
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134 | } |
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355 | daniel-mar | 135 | |
379 | daniel-mar | 136 | function httpOutWithETag($out, $contentType, $filename='') { |
137 | $etag = md5($out); |
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138 | header("Etag: $etag"); |
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139 | header("Content-MD5: $etag"); // RFC 2616 clause 14.15 |
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140 | if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && (trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag)) { |
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1068 | daniel-mar | 141 | if (PHP_SAPI != 'cli') @http_response_code(304); // 304 Not Modified |
379 | daniel-mar | 142 | } else { |
143 | header("Content-Type: $contentType"); |
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144 | if (!empty($filename)) { |
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145 | header('Content-Disposition:inline; filename="'.$filename.'"'); |
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146 | } |
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147 | echo $out; |
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148 | } |
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149 | die(); |
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150 | } |
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151 | |||
360 | daniel-mar | 152 | function my_vsprintf($str, $args) { |
153 | $n = 1; |
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154 | foreach ($args as $val) { |
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155 | $str = str_replace("%$n", $val, $str); |
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156 | $n++; |
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157 | } |
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370 | daniel-mar | 158 | $str = str_replace("%%", "%", $str); |
360 | daniel-mar | 159 | return $str; |
160 | } |
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161 | |||
355 | daniel-mar | 162 | function _L($str, ...$sprintfArgs) { |
401 | daniel-mar | 163 | static $translation_array = array(); |
164 | static $translation_loaded = null; |
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165 | |||
506 | daniel-mar | 166 | $str = trim($str); |
167 | |||
1050 | daniel-mar | 168 | if (!class_exists(OIDplus::class)) { |
438 | daniel-mar | 169 | return my_vsprintf($str, $sprintfArgs); |
170 | } |
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171 | |||
360 | daniel-mar | 172 | $lang = OIDplus::getCurrentLang(); |
468 | daniel-mar | 173 | $ta = OIDplus::getTranslationArray($lang); |
174 | $res = (isset($ta[$lang]) && isset($ta[$lang][$str])) ? $ta[$lang][$str] : $str; |
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360 | daniel-mar | 175 | |
176 | $res = str_replace('###', OIDplus::baseConfig()->getValue('TABLENAME_PREFIX', ''), $res); |
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177 | |||
178 | $res = my_vsprintf($res, $sprintfArgs); |
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179 | |||
180 | return $res; |
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370 | daniel-mar | 181 | } |
386 | daniel-mar | 182 | |
552 | daniel-mar | 183 | function _CheckParamExists($params, $key) { |
1050 | daniel-mar | 184 | if (class_exists(OIDplusException::class)) { |
698 | daniel-mar | 185 | if (!isset($params[$key])) throw new OIDplusException(_L('Parameter %1 is missing', $key)); |
186 | } else { |
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187 | if (!isset($params[$key])) throw new Exception(_L('Parameter %1 is missing', $key)); |
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188 | } |
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552 | daniel-mar | 189 | } |
190 | |||
721 | daniel-mar | 191 | function extractHtmlContents($cont) { |
192 | // make sure the program works even if the user provided HTML is not UTF-8 |
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193 | $cont = convert_to_utf8_no_bom($cont); |
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194 | |||
386 | daniel-mar | 195 | $out_js = ''; |
196 | $m = array(); |
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197 | preg_match_all('@<script[^>]*>(.+)</script>@ismU', $cont, $m); |
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198 | foreach ($m[1] as $x) { |
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199 | $out_js = $x . "\n\n"; |
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200 | } |
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201 | |||
202 | $out_css = ''; |
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203 | $m = array(); |
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204 | preg_match_all('@<style[^>]*>(.+)</style>@ismU', $cont, $m); |
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205 | foreach ($m[1] as $x) { |
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206 | $out_css = $x . "\n\n"; |
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207 | } |
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208 | |||
209 | $out_html = $cont; |
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210 | $out_html = preg_replace('@^(.+)<body[^>]*>@isU', '', $out_html); |
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211 | $out_html = preg_replace('@</body>.+$@isU', '', $out_html); |
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212 | $out_html = preg_replace('@<title>.+</title>@isU', '', $out_html); |
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213 | $out_html = preg_replace('@<h1>.+</h1>@isU', '', $out_html, 1); |
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214 | $out_html = preg_replace('@<script[^>]*>(.+)</script>@ismU', '', $out_html); |
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215 | $out_html = preg_replace('@<style[^>]*>(.+)</style>@ismU', '', $out_html); |
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216 | |||
217 | return array($out_html, $out_js, $out_css); |
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392 | daniel-mar | 218 | } |
219 | |||
400 | daniel-mar | 220 | function sha3_512($password, $raw_output=false) { |
1103 | daniel-mar | 221 | if (hash_supported_natively('sha3-512')) { |
400 | daniel-mar | 222 | return hash('sha3-512', $password, $raw_output); |
392 | daniel-mar | 223 | } else { |
1021 | daniel-mar | 224 | return \bb\Sha3\Sha3::hash($password, 512, $raw_output); |
392 | daniel-mar | 225 | } |
226 | } |
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486 | daniel-mar | 227 | |
710 | daniel-mar | 228 | function sha3_512_hmac($message, $key, $raw_output=false) { |
229 | // RFC 2104 HMAC |
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1103 | daniel-mar | 230 | if (hash_hmac_supported_natively('sha3-512')) { |
847 | daniel-mar | 231 | return hash_hmac('sha3-512', $message, $key, $raw_output); |
232 | } else { |
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1021 | daniel-mar | 233 | return \bb\Sha3\Sha3::hash_hmac($message, $key, 512, $raw_output); |
847 | daniel-mar | 234 | } |
710 | daniel-mar | 235 | } |
236 | |||
1103 | daniel-mar | 237 | function sha3_512_pbkdf2($password, $salt, $iterations, $length=0, $binary=false) { |
238 | if (hash_pbkdf2_supported_natively('sha3-512')) { |
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239 | return hash_pbkdf2('sha3-512', $password, $salt, $iterations, $length, $binary); |
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240 | } else { |
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241 | return \bb\Sha3\Sha3::hash_pbkdf2($password, $salt, $iterations, 512, $length, $binary); |
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242 | } |
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243 | } |
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244 | |||
963 | daniel-mar | 245 | function url_get_contents($url, $userAgent='ViaThinkSoft-OIDplus/2.0') { |
653 | daniel-mar | 246 | if (function_exists('curl_init')) { |
247 | $ch = curl_init(); |
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1050 | daniel-mar | 248 | if (class_exists(OIDplus::class)) { |
698 | daniel-mar | 249 | if (ini_get('curl.cainfo') == '') curl_setopt($ch, CURLOPT_CAINFO, OIDplus::localpath() . 'vendor/cacert.pem'); |
250 | } |
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653 | daniel-mar | 251 | curl_setopt($ch, CURLOPT_URL, $url); |
963 | daniel-mar | 252 | curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); |
653 | daniel-mar | 253 | curl_setopt($ch, CURLOPT_POST, 0); |
254 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
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255 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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256 | curl_setopt($ch, CURLOPT_AUTOREFERER, true); |
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1006 | daniel-mar | 257 | $res = @curl_exec($ch); |
963 | daniel-mar | 258 | $error_code = @curl_getinfo($ch, CURLINFO_HTTP_CODE); |
1006 | daniel-mar | 259 | @curl_close($ch); |
963 | daniel-mar | 260 | if ($error_code >= 400) return false; |
1006 | daniel-mar | 261 | if ($res === false) return false; |
653 | daniel-mar | 262 | } else { |
963 | daniel-mar | 263 | // Attention: HTTPS only works if OpenSSL extension is enabled. |
264 | // Our supplement does not help... |
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716 | daniel-mar | 265 | $opts = [ |
266 | "http" => [ |
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267 | "method" => "GET", |
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963 | daniel-mar | 268 | "header" => "User-Agent: $userAgent\r\n" |
716 | daniel-mar | 269 | ] |
270 | ]; |
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271 | $context = stream_context_create($opts); |
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272 | $res = @file_get_contents($url, false, $context); |
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653 | daniel-mar | 273 | if ($res === false) return false; |
274 | } |
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275 | return $res; |
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660 | daniel-mar | 276 | } |
778 | daniel-mar | 277 | |
278 | function getSortedQuery() { |
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279 | // https://stackoverflow.com/a/51777249/488539 |
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280 | $url = []; |
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281 | parse_str($_SERVER['QUERY_STRING'], $url); |
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282 | ksort($url); |
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283 | return http_build_query($url); |
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284 | } |