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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; |
1149 | daniel-mar | 21 | use ViaThinkSoft\OIDplus\OIDplusException; |
1050 | daniel-mar | 22 | |
1130 | daniel-mar | 23 | /** |
24 | * @param string $privKey |
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25 | * @return bool |
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26 | */ |
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27 | function is_privatekey_encrypted(string $privKey): bool { |
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830 | daniel-mar | 28 | return strpos($privKey,'BEGIN ENCRYPTED PRIVATE KEY') !== false; |
29 | } |
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30 | |||
1130 | daniel-mar | 31 | /** |
32 | * @param string $privKey |
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33 | * @param string $pubKey |
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34 | * @return bool |
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35 | */ |
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36 | function verify_private_public_key(string $privKey, string $pubKey): bool { |
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721 | daniel-mar | 37 | if (!function_exists('openssl_public_encrypt')) return false; |
74 | daniel-mar | 38 | try { |
39 | if (empty($privKey)) return false; |
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40 | if (empty($pubKey)) return false; |
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453 | daniel-mar | 41 | $data = generateRandomString(25); |
386 | daniel-mar | 42 | $encrypted = ''; |
43 | $decrypted = ''; |
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74 | daniel-mar | 44 | if (!@openssl_public_encrypt($data, $encrypted, $pubKey)) return false; |
45 | if (!@openssl_private_decrypt($encrypted, $decrypted, $privKey)) return false; |
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46 | return $decrypted == $data; |
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1050 | daniel-mar | 47 | } catch (\Exception $e) { |
74 | daniel-mar | 48 | return false; |
49 | } |
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50 | } |
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51 | |||
1130 | daniel-mar | 52 | /** |
53 | * @param string $privKeyOld |
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54 | * @param string|null $passphrase_old |
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55 | * @param string|null $passphrase_new |
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56 | * @return false|string |
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57 | */ |
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58 | function change_private_key_passphrase(string $privKeyOld, string $passphrase_old=null, string $passphrase_new=null) { |
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830 | daniel-mar | 59 | $pkey_config = array( |
60 | //"digest_alg" => "sha512", |
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61 | //"private_key_bits" => 2048, |
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62 | //"private_key_type" => OPENSSL_KEYTYPE_RSA, |
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1158 | daniel-mar | 63 | "config" => class_exists(OIDplus::class) ? OIDplus::getOpenSslCnf() : @getenv('OPENSSL_CONF') |
830 | daniel-mar | 64 | ); |
65 | $privKeyNew = @openssl_pkey_get_private($privKeyOld, $passphrase_old); |
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66 | if ($privKeyNew === false) return false; |
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1116 | daniel-mar | 67 | if (!@openssl_pkey_export($privKeyNew, $privKeyNewExport, $passphrase_new, $pkey_config)) return false; |
68 | if ($privKeyNewExport === "") return false; |
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69 | return "$privKeyNewExport"; |
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830 | daniel-mar | 70 | } |
71 | |||
1130 | daniel-mar | 72 | /** |
73 | * @param string $privKey |
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74 | * @param string $passphrase |
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75 | * @return false|string |
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76 | */ |
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77 | function decrypt_private_key(string $privKey, string $passphrase) { |
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830 | daniel-mar | 78 | return change_private_key_passphrase($privKey, $passphrase, null); |
79 | } |
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80 | |||
1130 | daniel-mar | 81 | /** |
82 | * @param string $privKey |
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83 | * @param string $passphrase |
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84 | * @return false|string |
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85 | */ |
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86 | function encrypt_private_key(string $privKey, string $passphrase) { |
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830 | daniel-mar | 87 | return change_private_key_passphrase($privKey, null, $passphrase); |
88 | } |
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89 | |||
1130 | daniel-mar | 90 | /** |
91 | * @param string $data |
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92 | * @return int |
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93 | */ |
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94 | function smallhash(string $data): int { // get 31 bits from SHA1. Values 0..2147483647 |
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250 | daniel-mar | 95 | return (hexdec(substr(sha1($data),-4*2)) & 0x7FFFFFFF); |
74 | daniel-mar | 96 | } |
180 | daniel-mar | 97 | |
1130 | daniel-mar | 98 | /** |
99 | * @param string $name |
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100 | * @return array |
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101 | */ |
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102 | function split_firstname_lastname(string $name): array { |
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182 | daniel-mar | 103 | $ary = explode(' ', $name); |
104 | $last_name = array_pop($ary); |
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105 | $first_name = implode(' ', $ary); |
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106 | return array($first_name, $last_name); |
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107 | } |
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108 | |||
1130 | daniel-mar | 109 | /** |
110 | * @return void |
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111 | */ |
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180 | daniel-mar | 112 | function originHeaders() { |
113 | // CORS |
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114 | // Author: Till Wehowski |
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426 | daniel-mar | 115 | // TODO: add to class OIDplus |
182 | daniel-mar | 116 | |
180 | daniel-mar | 117 | header("Access-Control-Allow-Credentials: true"); |
118 | header("Access-Control-Allow-Origin: ".strip_tags(((isset($_SERVER['HTTP_ORIGIN'])) ? $_SERVER['HTTP_ORIGIN'] : "*"))); |
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119 | |||
120 | header("Access-Control-Allow-Headers: If-None-Match, X-Requested-With, Origin, X-Frdlweb-Bugs, Etag, X-Forgery-Protection-Token, X-CSRF-Token"); |
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121 | |||
122 | if (isset($_SERVER['HTTP_ORIGIN'])) { |
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123 | header('X-Frame-Options: ALLOW-FROM '.$_SERVER['HTTP_ORIGIN']); |
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124 | } else { |
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125 | header_remove("X-Frame-Options"); |
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126 | } |
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127 | |||
128 | $expose = array('Etag', 'X-CSRF-Token'); |
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129 | foreach (headers_list() as $num => $header) { |
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130 | $h = explode(':', $header); |
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131 | $expose[] = trim($h[0]); |
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132 | } |
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133 | header("Access-Control-Expose-Headers: ".implode(',',$expose)); |
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134 | |||
135 | header("Vary: Origin"); |
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136 | } |
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236 | daniel-mar | 137 | |
346 | daniel-mar | 138 | if (!function_exists('mb_wordwrap')) { |
1130 | daniel-mar | 139 | /** |
140 | * @param string $str |
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141 | * @param int $width |
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142 | * @param string $break |
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143 | * @param bool $cut |
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144 | * @return string |
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145 | */ |
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146 | function mb_wordwrap(string $str, int $width = 75, string $break = "\n", bool $cut = false): string { |
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346 | daniel-mar | 147 | // https://stackoverflow.com/a/4988494/488539 |
148 | $lines = explode($break, $str); |
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149 | foreach ($lines as &$line) { |
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150 | $line = rtrim($line); |
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151 | if (mb_strlen($line) <= $width) { |
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152 | continue; |
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153 | } |
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154 | $words = explode(' ', $line); |
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155 | $line = ''; |
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156 | $actual = ''; |
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157 | foreach ($words as $word) { |
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158 | if (mb_strlen($actual.$word) <= $width) { |
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159 | $actual .= $word.' '; |
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160 | } else { |
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161 | if ($actual != '') { |
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162 | $line .= rtrim($actual).$break; |
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163 | } |
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164 | $actual = $word; |
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165 | if ($cut) { |
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166 | while (mb_strlen($actual) > $width) { |
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167 | $line .= mb_substr($actual, 0, $width).$break; |
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168 | $actual = mb_substr($actual, $width); |
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169 | } |
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170 | } |
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171 | $actual .= ' '; |
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172 | } |
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173 | } |
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174 | $line .= trim($actual); |
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175 | } |
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176 | return implode($break, $lines); |
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177 | } |
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178 | } |
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355 | daniel-mar | 179 | |
1130 | daniel-mar | 180 | /** |
181 | * @param string $out |
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182 | * @param string $contentType |
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183 | * @param string $filename |
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184 | * @return void |
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185 | */ |
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186 | function httpOutWithETag(string $out, string $contentType, string $filename='') { |
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379 | daniel-mar | 187 | $etag = md5($out); |
188 | header("Etag: $etag"); |
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189 | header("Content-MD5: $etag"); // RFC 2616 clause 14.15 |
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190 | if (isset($_SERVER['HTTP_IF_NONE_MATCH']) && (trim($_SERVER['HTTP_IF_NONE_MATCH']) == $etag)) { |
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1068 | daniel-mar | 191 | if (PHP_SAPI != 'cli') @http_response_code(304); // 304 Not Modified |
379 | daniel-mar | 192 | } else { |
193 | header("Content-Type: $contentType"); |
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194 | if (!empty($filename)) { |
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195 | header('Content-Disposition:inline; filename="'.$filename.'"'); |
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196 | } |
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197 | echo $out; |
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198 | } |
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199 | die(); |
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200 | } |
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201 | |||
1130 | daniel-mar | 202 | /** |
203 | * @param string $str |
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204 | * @param array $args |
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205 | * @return string |
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206 | */ |
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207 | function my_vsprintf(string $str, array $args): string { |
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208 | $n = 1; |
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209 | foreach ($args as $val) { |
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210 | $str = str_replace("%$n", $val, $str); |
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211 | $n++; |
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212 | } |
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213 | return str_replace("%%", "%", $str); |
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360 | daniel-mar | 214 | } |
215 | |||
1130 | daniel-mar | 216 | /** |
217 | * @param string $str |
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218 | * @param mixed ...$sprintfArgs |
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219 | * @return string |
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220 | * @throws \ViaThinkSoft\OIDplus\OIDplusConfigInitializationException |
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221 | * @throws \ViaThinkSoft\OIDplus\OIDplusException |
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222 | */ |
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223 | function _L(string $str, ...$sprintfArgs): string { |
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401 | daniel-mar | 224 | static $translation_array = array(); |
225 | static $translation_loaded = null; |
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226 | |||
506 | daniel-mar | 227 | $str = trim($str); |
228 | |||
1050 | daniel-mar | 229 | if (!class_exists(OIDplus::class)) { |
438 | daniel-mar | 230 | return my_vsprintf($str, $sprintfArgs); |
231 | } |
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232 | |||
360 | daniel-mar | 233 | $lang = OIDplus::getCurrentLang(); |
468 | daniel-mar | 234 | $ta = OIDplus::getTranslationArray($lang); |
1162 | daniel-mar | 235 | $res = $ta[$lang][$str] ?? $str; |
360 | daniel-mar | 236 | |
237 | $res = str_replace('###', OIDplus::baseConfig()->getValue('TABLENAME_PREFIX', ''), $res); |
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238 | |||
1130 | daniel-mar | 239 | return my_vsprintf($res, $sprintfArgs); |
370 | daniel-mar | 240 | } |
386 | daniel-mar | 241 | |
1130 | daniel-mar | 242 | /** |
243 | * @param array $params |
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244 | * @param string $key |
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245 | * @return void |
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246 | * @throws \ViaThinkSoft\OIDplus\OIDplusConfigInitializationException |
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247 | * @throws \ViaThinkSoft\OIDplus\OIDplusException |
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248 | */ |
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249 | function _CheckParamExists(array $params, string $key) { |
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1050 | daniel-mar | 250 | if (class_exists(OIDplusException::class)) { |
698 | daniel-mar | 251 | if (!isset($params[$key])) throw new OIDplusException(_L('Parameter %1 is missing', $key)); |
252 | } else { |
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253 | if (!isset($params[$key])) throw new Exception(_L('Parameter %1 is missing', $key)); |
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254 | } |
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552 | daniel-mar | 255 | } |
256 | |||
1130 | daniel-mar | 257 | /** |
258 | * @param string $cont |
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259 | * @return array |
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260 | */ |
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261 | function extractHtmlContents(string $cont): array { |
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721 | daniel-mar | 262 | // make sure the program works even if the user provided HTML is not UTF-8 |
263 | $cont = convert_to_utf8_no_bom($cont); |
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264 | |||
386 | daniel-mar | 265 | $out_js = ''; |
266 | $m = array(); |
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267 | preg_match_all('@<script[^>]*>(.+)</script>@ismU', $cont, $m); |
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268 | foreach ($m[1] as $x) { |
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269 | $out_js = $x . "\n\n"; |
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270 | } |
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271 | |||
272 | $out_css = ''; |
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273 | $m = array(); |
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274 | preg_match_all('@<style[^>]*>(.+)</style>@ismU', $cont, $m); |
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275 | foreach ($m[1] as $x) { |
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276 | $out_css = $x . "\n\n"; |
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277 | } |
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278 | |||
279 | $out_html = $cont; |
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280 | $out_html = preg_replace('@^(.+)<body[^>]*>@isU', '', $out_html); |
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281 | $out_html = preg_replace('@</body>.+$@isU', '', $out_html); |
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282 | $out_html = preg_replace('@<title>.+</title>@isU', '', $out_html); |
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283 | $out_html = preg_replace('@<h1>.+</h1>@isU', '', $out_html, 1); |
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284 | $out_html = preg_replace('@<script[^>]*>(.+)</script>@ismU', '', $out_html); |
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285 | $out_html = preg_replace('@<style[^>]*>(.+)</style>@ismU', '', $out_html); |
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286 | |||
287 | return array($out_html, $out_js, $out_css); |
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392 | daniel-mar | 288 | } |
289 | |||
1130 | daniel-mar | 290 | /** |
291 | * @param string $password |
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292 | * @param bool $raw_output |
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293 | * @return string |
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294 | * @throws Exception |
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295 | */ |
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296 | function sha3_512(string $password, bool $raw_output=false): string { |
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1103 | daniel-mar | 297 | if (hash_supported_natively('sha3-512')) { |
400 | daniel-mar | 298 | return hash('sha3-512', $password, $raw_output); |
392 | daniel-mar | 299 | } else { |
1021 | daniel-mar | 300 | return \bb\Sha3\Sha3::hash($password, 512, $raw_output); |
392 | daniel-mar | 301 | } |
302 | } |
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486 | daniel-mar | 303 | |
1130 | daniel-mar | 304 | /** |
305 | * @param string $message |
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306 | * @param string $key |
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307 | * @param bool $raw_output |
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308 | * @return string |
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309 | */ |
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310 | function sha3_512_hmac(string $message, string $key, bool $raw_output=false): string { |
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710 | daniel-mar | 311 | // RFC 2104 HMAC |
1103 | daniel-mar | 312 | if (hash_hmac_supported_natively('sha3-512')) { |
847 | daniel-mar | 313 | return hash_hmac('sha3-512', $message, $key, $raw_output); |
314 | } else { |
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1021 | daniel-mar | 315 | return \bb\Sha3\Sha3::hash_hmac($message, $key, 512, $raw_output); |
847 | daniel-mar | 316 | } |
710 | daniel-mar | 317 | } |
318 | |||
1130 | daniel-mar | 319 | /** |
320 | * @param string $password |
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321 | * @param string $salt |
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322 | * @param int $iterations |
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323 | * @param int $length |
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324 | * @param bool $binary |
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325 | * @return string |
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326 | */ |
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327 | function sha3_512_pbkdf2(string $password, string $salt, int $iterations, int $length=0, bool $binary=false): string { |
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1103 | daniel-mar | 328 | if (hash_pbkdf2_supported_natively('sha3-512')) { |
329 | return hash_pbkdf2('sha3-512', $password, $salt, $iterations, $length, $binary); |
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330 | } else { |
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331 | return \bb\Sha3\Sha3::hash_pbkdf2($password, $salt, $iterations, 512, $length, $binary); |
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332 | } |
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333 | } |
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334 | |||
1130 | daniel-mar | 335 | /** |
1181 | daniel-mar | 336 | * @param bool $require_ssl |
337 | * @param string|null $reason |
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1149 | daniel-mar | 338 | * @return bool |
1181 | daniel-mar | 339 | * @throws OIDplusException |
340 | * @throws \ViaThinkSoft\OIDplus\OIDplusConfigInitializationException |
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1149 | daniel-mar | 341 | */ |
1181 | daniel-mar | 342 | function url_post_contents_available(bool $require_ssl=true, string &$reason=null): bool { |
1182 | daniel-mar | 343 | if (class_exists(OIDplus::class)) { |
344 | if (OIDplus::baseConfig()->getValue('OFFLINE_MODE', false)) { |
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345 | $reason = _L('OIDplus is running in offline mode due to the base configuration setting %1.', 'OFFLINE_MODE'); |
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346 | return false; |
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347 | } |
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348 | } |
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349 | |||
1181 | daniel-mar | 350 | if (function_exists('curl_init')) { |
351 | return true; |
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352 | } else { |
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353 | $reason = _L('Please install the PHP extension %1, so that OIDplus can connect to the Internet.', '<code>php_curl</code>'); |
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354 | return false; |
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355 | } |
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1149 | daniel-mar | 356 | } |
357 | |||
358 | /** |
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1130 | daniel-mar | 359 | * @param string $url |
1149 | daniel-mar | 360 | * @param array $params |
361 | * @param array $extraHeaders |
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1130 | daniel-mar | 362 | * @param string $userAgent |
363 | * @return string|false |
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1149 | daniel-mar | 364 | * @throws \ViaThinkSoft\OIDplus\OIDplusException |
1130 | daniel-mar | 365 | */ |
1149 | daniel-mar | 366 | function url_post_contents(string $url, array $params=array(), array $extraHeaders=array(), string $userAgent='ViaThinkSoft-OIDplus/2.0') { |
1182 | daniel-mar | 367 | $require_ssl = str_starts_with(strtolower($url),'https:'); |
368 | if (!url_post_contents_available($require_ssl, $reason)) { |
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369 | throw new OIDplusException(_L('This feature is not available, because OIDplus cannot connect to the Internet.').' '.$reason); |
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370 | } |
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371 | |||
1149 | daniel-mar | 372 | $postFields = http_build_query($params); |
373 | |||
374 | $headers = array( |
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375 | "User-Agent: $userAgent", |
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376 | "Content-Length: ".strlen($postFields) |
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377 | ); |
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378 | |||
379 | foreach ($extraHeaders as $name => $val) { |
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380 | $headers[] = "$name: $val"; |
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381 | } |
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382 | |||
653 | daniel-mar | 383 | if (function_exists('curl_init')) { |
384 | $ch = curl_init(); |
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1050 | daniel-mar | 385 | if (class_exists(OIDplus::class)) { |
698 | daniel-mar | 386 | if (ini_get('curl.cainfo') == '') curl_setopt($ch, CURLOPT_CAINFO, OIDplus::localpath() . 'vendor/cacert.pem'); |
387 | } |
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653 | daniel-mar | 388 | curl_setopt($ch, CURLOPT_URL, $url); |
963 | daniel-mar | 389 | curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); |
1149 | daniel-mar | 390 | curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); |
391 | curl_setopt($ch, CURLOPT_POST, true); |
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392 | curl_setopt($ch, CURLOPT_POSTFIELDS, $postFields); |
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653 | daniel-mar | 393 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
394 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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395 | curl_setopt($ch, CURLOPT_AUTOREFERER, true); |
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1006 | daniel-mar | 396 | $res = @curl_exec($ch); |
963 | daniel-mar | 397 | $error_code = @curl_getinfo($ch, CURLINFO_HTTP_CODE); |
1006 | daniel-mar | 398 | @curl_close($ch); |
963 | daniel-mar | 399 | if ($error_code >= 400) return false; |
1006 | daniel-mar | 400 | if ($res === false) return false; |
653 | daniel-mar | 401 | } else { |
1182 | daniel-mar | 402 | $res = false; |
403 | assert(false); |
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1149 | daniel-mar | 404 | } |
1182 | daniel-mar | 405 | |
1149 | daniel-mar | 406 | return $res; |
407 | } |
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408 | |||
409 | /** |
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1181 | daniel-mar | 410 | * @param bool $require_ssl |
411 | * @param string|null $reason |
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412 | * @return bool |
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413 | * @throws OIDplusException |
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414 | * @throws \ViaThinkSoft\OIDplus\OIDplusConfigInitializationException |
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415 | */ |
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416 | function url_get_contents_available(bool $require_ssl=true, string &$reason=null): bool { |
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1182 | daniel-mar | 417 | if (class_exists(OIDplus::class)) { |
418 | if (OIDplus::baseConfig()->getValue('OFFLINE_MODE', false)) { |
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419 | $reason = _L('OIDplus is running in offline mode due to the base configuration setting %1.', 'OFFLINE_MODE'); |
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420 | return false; |
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421 | } |
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422 | } |
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423 | |||
1181 | daniel-mar | 424 | if (function_exists('curl_init')) { |
425 | // Via cURL |
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426 | return true; |
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427 | } else { |
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428 | // Via file_get_contents() |
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429 | if (!ini_get('allow_url_fopen')) { |
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430 | $reason = _L('Please install the PHP extension %1 and/or enable %2 in your PHP configuration, so that OIDplus can connect to the Internet.', '<code>php_curl</code>', '<code>allow_url_fopen</code>'); |
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431 | return false; |
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432 | } |
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433 | // Use extension_loaded() instead of function_exists(), because our supplement does not help... |
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434 | if ($require_ssl && !extension_loaded('openssl')) { |
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435 | $reason = _L('Please install the PHP extension %1 and/or %2, so that OIDplus can connect to the Internet.', '<code>php_curl</code>', '<code>php_openssl</code>'); |
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436 | return false; |
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437 | } |
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438 | return true; |
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439 | } |
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440 | } |
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441 | |||
442 | /** |
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1149 | daniel-mar | 443 | * @param string $url |
444 | * @param array $extraHeaders |
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445 | * @param string $userAgent |
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446 | * @return string|false |
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447 | */ |
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448 | function url_get_contents(string $url, array $extraHeaders=array(), string $userAgent='ViaThinkSoft-OIDplus/2.0') { |
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1182 | daniel-mar | 449 | $require_ssl = str_starts_with(strtolower($url),'https:'); |
450 | if (!url_get_contents_available($require_ssl, $reason)) { |
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451 | throw new OIDplusException(_L('This feature is not available, because OIDplus cannot connect to the Internet.').' '.$reason); |
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452 | } |
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453 | |||
1149 | daniel-mar | 454 | $headers = array("User-Agent: $userAgent"); |
455 | foreach ($extraHeaders as $name => $val) { |
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456 | $headers[] = "$name: $val"; |
||
457 | } |
||
458 | if (function_exists('curl_init')) { |
||
459 | $ch = curl_init(); |
||
460 | if (class_exists(OIDplus::class)) { |
||
461 | if (ini_get('curl.cainfo') == '') curl_setopt($ch, CURLOPT_CAINFO, OIDplus::localpath() . 'vendor/cacert.pem'); |
||
462 | } |
||
463 | curl_setopt($ch, CURLOPT_URL, $url); |
||
464 | curl_setopt($ch, CURLOPT_USERAGENT, $userAgent); |
||
465 | curl_setopt($ch, CURLOPT_HTTPHEADER, $headers); |
||
466 | curl_setopt($ch, CURLOPT_POST, false); |
||
467 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
||
468 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
||
469 | curl_setopt($ch, CURLOPT_AUTOREFERER, true); |
||
470 | $res = @curl_exec($ch); |
||
471 | $error_code = @curl_getinfo($ch, CURLINFO_HTTP_CODE); |
||
472 | @curl_close($ch); |
||
473 | if ($error_code >= 400) return false; |
||
474 | if ($res === false) return false; |
||
475 | } else { |
||
963 | daniel-mar | 476 | // Attention: HTTPS only works if OpenSSL extension is enabled. |
477 | // Our supplement does not help... |
||
716 | daniel-mar | 478 | $opts = [ |
479 | "http" => [ |
||
480 | "method" => "GET", |
||
1149 | daniel-mar | 481 | "header" => implode("\r\n",$headers)."\r\n" |
716 | daniel-mar | 482 | ] |
483 | ]; |
||
484 | $context = stream_context_create($opts); |
||
485 | $res = @file_get_contents($url, false, $context); |
||
653 | daniel-mar | 486 | if ($res === false) return false; |
487 | } |
||
488 | return $res; |
||
660 | daniel-mar | 489 | } |
778 | daniel-mar | 490 | |
1130 | daniel-mar | 491 | /** |
492 | * @return string |
||
493 | */ |
||
494 | function getSortedQuery(): string { |
||
778 | daniel-mar | 495 | // https://stackoverflow.com/a/51777249/488539 |
496 | $url = []; |
||
497 | parse_str($_SERVER['QUERY_STRING'], $url); |
||
498 | ksort($url); |
||
499 | return http_build_query($url); |
||
500 | } |
||
1148 | daniel-mar | 501 | |
502 | /** |
||
503 | * @param array &$rows |
||
504 | * @param string $fieldName |
||
505 | * @return void |
||
506 | */ |
||
1158 | daniel-mar | 507 | function natsort_field(array &$rows, string $fieldName) { |
1148 | daniel-mar | 508 | usort($rows, function($a,$b) use($fieldName) { |
509 | if ($a[$fieldName] == $b[$fieldName]) return 0; // equal |
||
510 | $ary = array( |
||
511 | -1 => $a[$fieldName], |
||
512 | 1 => $b[$fieldName] |
||
513 | ); |
||
1150 | daniel-mar | 514 | natsort($ary); |
1148 | daniel-mar | 515 | $keys = array_keys($ary); |
516 | return $keys[0]; |
||
517 | }); |
||
518 | } |
||
1156 | daniel-mar | 519 | |
520 | /** |
||
521 | * @param array $ary |
||
522 | * @return \stdClass |
||
523 | */ |
||
524 | function array_to_stdobj(array $ary): \stdClass { |
||
525 | $obj = new \stdClass; |
||
526 | foreach ($ary as $name => $val) { |
||
527 | $obj->$name = $val; |
||
528 | } |
||
529 | return $obj; |
||
530 | } |
||
531 | |||
532 | /** |
||
533 | * @param \stdClass $obj |
||
534 | * @return array |
||
535 | */ |
||
536 | function stdobj_to_array(\stdClass $obj): array { |
||
537 | $ary = array(); |
||
538 | foreach ($obj as $name => $val) { |
||
539 | $ary[$name] = $val; |
||
540 | } |
||
541 | return $ary; |
||
542 | } |
||
1180 | daniel-mar | 543 | |
544 | /** |
||
545 | * @return string|false |
||
546 | */ |
||
547 | function get_own_username() { |
||
548 | $current_user = exec('whoami'); |
||
549 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
||
550 | try { |
||
551 | if (function_exists('mb_convert_encoding')) { |
||
552 | $current_user = @mb_convert_encoding($current_user, "UTF-8", "cp850"); |
||
553 | } else if (function_exists('iconv')) { |
||
554 | $current_user = @iconv("cp850", "UTF-8", $current_user); |
||
555 | } |
||
556 | } catch (\Exception $e) {} |
||
557 | if (function_exists('mb_strtoupper')) { |
||
558 | $current_user = mb_strtoupper($current_user); // just cosmetics |
||
559 | } |
||
560 | } |
||
561 | if (!$current_user) { |
||
562 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { |
||
563 | // Windows on an IIS server: |
||
564 | // getenv('USERNAME') MARSCHALL$ (That is the "machine account", see https://docs.microsoft.com/en-us/iis/manage/configuring-security/application-pool-identities#accessing-the-network ) |
||
565 | // get_current_user() DefaultAppPool |
||
566 | // exec('whoami') iis apppool\defaultapppool |
||
567 | // Windows with XAMPP: |
||
568 | // getenv('USERNAME') dmarschall |
||
569 | // get_current_user() dmarschall (even if script has a different NTFS owner!) |
||
570 | // exec('whoami') hickelsoft\dmarschall |
||
571 | $current_user = get_current_user(); |
||
572 | if (!$current_user) { |
||
573 | $current_user = getenv('USERNAME'); |
||
574 | $current_user = mb_strtoupper($current_user); // just cosmetics |
||
575 | } |
||
576 | } else { |
||
577 | // On Linux: |
||
578 | $current_user = exec('id -un'); |
||
579 | if (!$current_user) { |
||
580 | // PHP'S get_current_user() will get the owner of the PHP script, not the process owner! |
||
581 | // We want the process owner, so we use posix_geteuid() preferably. |
||
582 | if (function_exists('posix_geteuid')) { |
||
583 | $uid = posix_geteuid(); |
||
584 | } else { |
||
585 | $temp_file = tempnam(sys_get_temp_dir(), 'TMP'); |
||
586 | if ($temp_file !== false) { |
||
587 | $uid = fileowner($temp_file); |
||
588 | if ($uid === false) $uid = -1; |
||
589 | @unlink($temp_file); |
||
590 | } else { |
||
591 | $uid = -1; |
||
592 | } |
||
593 | } |
||
594 | if ($uid >= 0) { |
||
595 | $current_user = '#' . $uid; |
||
596 | if (function_exists('posix_getpwuid')) { |
||
597 | $userinfo = posix_getpwuid($uid); // receive username from the UID (requires read access to /etc/passwd) |
||
598 | if ($userinfo !== false) $current_user = $userinfo['name']; |
||
599 | } |
||
600 | } else { |
||
601 | $current_user = get_current_user(); |
||
602 | } |
||
603 | } |
||
604 | } |
||
605 | } |
||
606 | return $current_user ?: false; |
||
607 | } |
||
608 | |||
609 | /** |
||
610 | * @param string $path |
||
611 | * @return bool |
||
612 | */ |
||
613 | function isFileOrPathWritable(string $path): bool { |
||
614 | if ($writable_file = (file_exists($path) && is_writable($path))) return true; |
||
615 | if ($writable_directory = (!file_exists($path) && is_writable(dirname($path)))) return true; |
||
616 | return false; |
||
617 | } |