| @@ -1,1462 +1,0 @@ | ||
| 1 | -<?php | |
| 2 | - | |
| 3 | -/** | |
| 4 | - * +-----------------------------------------------------------------------+ | |
| 5 | - * | This file is part of the Roundcube Webmail client | | |
| 6 | - * | | | |
| 7 | - * | Copyright (C) The Roundcube Dev Team | | |
| 8 | - * | Copyright (C) Kolab Systems AG | | |
| 9 | - * | | | |
| 10 | - * | Licensed under the GNU General Public License version 3 or | | |
| 11 | - * | any later version with exceptions for skins & plugins. | | |
| 12 | - * | See the README file for a full license statement. | | |
| 13 | - * | | | |
| 14 | - * | PURPOSE: | | |
| 15 | - * | Utility class providing common functions | | |
| 16 | - * +-----------------------------------------------------------------------+ | |
| 17 | - * | Author: Thomas Bruederli <[email protected]> | | |
| 18 | - * | Author: Aleksander Machniak <[email protected]> | | |
| 19 | - * +-----------------------------------------------------------------------+ | |
| 20 | - */ | |
| 21 | - | |
| 22 | -namespace AcyMailing\Libraries\Imap2\Roundcube; | |
| 23 | - | |
| 24 | -use AcyMailing\Libraries\Imap2\DateTime; | |
| 25 | -use AcyMailing\Libraries\Imap2\DateTimeZone; | |
| 26 | -use AcyMailing\Libraries\Imap2\Exception; | |
| 27 | -use AcyMailing\Libraries\Imap2\rcube; | |
| 28 | -use AcyMailing\Libraries\Imap2\rcube_charset; | |
| 29 | -use AcyMailing\Libraries\Imap2\rcube_string_replacer; | |
| 30 | - | |
| 31 | -/** | |
| 32 | - * Utility class providing common functions | |
| 33 | - * | |
| 34 | - * @package Framework | |
| 35 | - * @subpackage Utils | |
| 36 | - */ | |
| 37 | -class Utils | |
| 38 | -{ | |
| 39 | - // define constants for input reading | |
| 40 | - const INPUT_GET = 1; | |
| 41 | - const INPUT_POST = 2; | |
| 42 | - const INPUT_COOKIE = 4; | |
| 43 | - const INPUT_GP = 3; // GET + POST | |
| 44 | - const INPUT_GPC = 7; // GET + POST + COOKIE | |
| 45 | - | |
| 46 | - | |
| 47 | - /** | |
| 48 | - * Helper method to set a cookie with the current path and host settings | |
| 49 | - * | |
| 50 | - * @param string $name Cookie name | |
| 51 | - * @param string $value Cookie value | |
| 52 | - * @param int $exp Expiration time | |
| 53 | - * @param bool $http_only HTTP Only | |
| 54 | - */ | |
| 55 | - public static function setcookie($name, $value, $exp = 0, $http_only = true) | |
| 56 | - { | |
| 57 | - if (headers_sent()) { | |
| 58 | - return; | |
| 59 | - } | |
| 60 | - | |
| 61 | - $cookie = session_get_cookie_params(); | |
| 62 | - $secure = $cookie['secure'] || self::https_check(); | |
| 63 | - | |
| 64 | - setcookie($name, $value, $exp, $cookie['path'], $cookie['domain'], $secure, $http_only); | |
| 65 | - } | |
| 66 | - | |
| 67 | - /** | |
| 68 | - * E-mail address validation. | |
| 69 | - * | |
| 70 | - * @param string $email Email address | |
| 71 | - * @param bool $dns_check True to check dns | |
| 72 | - * | |
| 73 | - * @return bool True on success, False if address is invalid | |
| 74 | - */ | |
| 75 | - public static function check_email($email, $dns_check = true) | |
| 76 | - { | |
| 77 | - // Check for invalid (control) characters | |
| 78 | - if (preg_match('/\p{Cc}/u', $email)) { | |
| 79 | - return false; | |
| 80 | - } | |
| 81 | - | |
| 82 | - // Check for length limit specified by RFC 5321 (#1486453) | |
| 83 | - if (strlen($email) > 254) { | |
| 84 | - return false; | |
| 85 | - } | |
| 86 | - | |
| 87 | - $pos = strrpos($email, '@'); | |
| 88 | - if (!$pos) { | |
| 89 | - return false; | |
| 90 | - } | |
| 91 | - | |
| 92 | - $domain_part = substr($email, $pos + 1); | |
| 93 | - $local_part = substr($email, 0, $pos); | |
| 94 | - | |
| 95 | - // quoted-string, make sure all backslashes and quotes are | |
| 96 | - // escaped | |
| 97 | - if (substr($local_part, 0, 1) == '"') { | |
| 98 | - $local_quoted = preg_replace('/\\\\(\\\\|\")/', '', substr($local_part, 1, -1)); | |
| 99 | - if (preg_match('/\\\\|"/', $local_quoted)) { | |
| 100 | - return false; | |
| 101 | - } | |
| 102 | - } // dot-atom portion, make sure there's no prohibited characters | |
| 103 | - elseif (preg_match('/(^\.|\.\.|\.$)/', $local_part) | |
| 104 | - || preg_match('/[\\ ",:;<>@]/', $local_part) | |
| 105 | - ) { | |
| 106 | - return false; | |
| 107 | - } | |
| 108 | - | |
| 109 | - // Validate domain part | |
| 110 | - if (preg_match('/^\[((IPv6:[0-9a-f:.]+)|([0-9.]+))\]$/i', $domain_part, $matches)) { | |
| 111 | - return self::check_ip(preg_replace('/^IPv6:/i', '', $matches[1])); // valid IPv4 or IPv6 address | |
| 112 | - } else { | |
| 113 | - // If not an IP address | |
| 114 | - $domain_array = explode('.', $domain_part); | |
| 115 | - // Not enough parts to be a valid domain | |
| 116 | - if (count($domain_array) < 2) { | |
| 117 | - return false; | |
| 118 | - } | |
| 119 | - | |
| 120 | - foreach ($domain_array as $part) { | |
| 121 | - if (!preg_match('/^((xn--)?([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]))$/', $part)) { | |
| 122 | - return false; | |
| 123 | - } | |
| 124 | - } | |
| 125 | - | |
| 126 | - // last domain part | |
| 127 | - $last_part = array_pop($domain_array); | |
| 128 | - if (strpos($last_part, 'xn--') !== 0 && preg_match('/[^a-zA-Z]/', $last_part)) { | |
| 129 | - return false; | |
| 130 | - } | |
| 131 | - | |
| 132 | - $rcube = rcube::get_instance(); | |
| 133 | - | |
| 134 | - if (!$dns_check || !function_exists('checkdnsrr') || !$rcube->config->get('email_dns_check')) { | |
| 135 | - return true; | |
| 136 | - } | |
| 137 | - | |
| 138 | - // Check DNS record(s) | |
| 139 | - // Note: We can't use ANY (#6581) | |
| 140 | - foreach (['A', 'MX', 'CNAME', 'AAAA'] as $type) { | |
| 141 | - if (checkdnsrr($domain_part, $type)) { | |
| 142 | - return true; | |
| 143 | - } | |
| 144 | - } | |
| 145 | - } | |
| 146 | - | |
| 147 | - return false; | |
| 148 | - } | |
| 149 | - | |
| 150 | - /** | |
| 151 | - * Validates IPv4 or IPv6 address | |
| 152 | - * | |
| 153 | - * @param string $ip IP address in v4 or v6 format | |
| 154 | - * | |
| 155 | - * @return bool True if the address is valid | |
| 156 | - */ | |
| 157 | - public static function check_ip($ip) | |
| 158 | - { | |
| 159 | - return filter_var($ip, FILTER_VALIDATE_IP) !== false; | |
| 160 | - } | |
| 161 | - | |
| 162 | - /** | |
| 163 | - * Replacing specials characters to a specific encoding type | |
| 164 | - * | |
| 165 | - * @param string $str Input string | |
| 166 | - * @param string $enctype Encoding type: text|html|xml|js|url | |
| 167 | - * @param string $mode Replace mode for tags: show|remove|strict | |
| 168 | - * @param bool $newlines Convert newlines | |
| 169 | - * | |
| 170 | - * @return string The quoted string | |
| 171 | - */ | |
| 172 | - public static function rep_specialchars_output($str, $enctype = '', $mode = '', $newlines = true) | |
| 173 | - { | |
| 174 | - static $html_encode_arr = false; | |
| 175 | - static $js_rep_table = false; | |
| 176 | - static $xml_rep_table = false; | |
| 177 | - | |
| 178 | - if (!is_string($str)) { | |
| 179 | - $str = strval($str); | |
| 180 | - } | |
| 181 | - | |
| 182 | - // encode for HTML output | |
| 183 | - if ($enctype == 'html') { | |
| 184 | - if (!$html_encode_arr) { | |
| 185 | - $html_encode_arr = get_html_translation_table(HTML_SPECIALCHARS); | |
| 186 | - unset($html_encode_arr['?']); | |
| 187 | - } | |
| 188 | - | |
| 189 | - $encode_arr = $html_encode_arr; | |
| 190 | - | |
| 191 | - if ($mode == 'remove') { | |
| 192 | - $str = strip_tags($str); | |
| 193 | - } elseif ($mode != 'strict') { | |
| 194 | - // don't replace quotes and html tags | |
| 195 | - $ltpos = strpos($str, '<'); | |
| 196 | - if ($ltpos !== false && strpos($str, '>', $ltpos) !== false) { | |
| 197 | - unset($encode_arr['"']); | |
| 198 | - unset($encode_arr['<']); | |
| 199 | - unset($encode_arr['>']); | |
| 200 | - unset($encode_arr['&']); | |
| 201 | - } | |
| 202 | - } | |
| 203 | - | |
| 204 | - $out = strtr($str, $encode_arr); | |
| 205 | - | |
| 206 | - return $newlines ? nl2br($out) : $out; | |
| 207 | - } | |
| 208 | - | |
| 209 | - // if the replace tables for XML and JS are not yet defined | |
| 210 | - if ($js_rep_table === false) { | |
| 211 | - $js_rep_table = $xml_rep_table = []; | |
| 212 | - $xml_rep_table['&'] = '&'; | |
| 213 | - | |
| 214 | - // can be increased to support more charsets | |
| 215 | - for ($c = 160 ; $c < 256 ; $c++) { | |
| 216 | - $xml_rep_table[chr($c)] = "&#$c;"; | |
| 217 | - } | |
| 218 | - | |
| 219 | - $xml_rep_table['"'] = '"'; | |
| 220 | - $js_rep_table['"'] = '\\"'; | |
| 221 | - $js_rep_table["'"] = "\\'"; | |
| 222 | - $js_rep_table["\\"] = "\\\\"; | |
| 223 | - // Unicode line and paragraph separators (#1486310) | |
| 224 | - $js_rep_table[chr(hexdec('E2')).chr(hexdec('80')).chr(hexdec('A8'))] = '
'; | |
| 225 | - $js_rep_table[chr(hexdec('E2')).chr(hexdec('80')).chr(hexdec('A9'))] = '
'; | |
| 226 | - } | |
| 227 | - | |
| 228 | - // encode for javascript use | |
| 229 | - if ($enctype == 'js') { | |
| 230 | - return preg_replace(["/\r?\n/", "/\r/", '/<\\//'], ['\n', '\n', '<\\/'], strtr($str, $js_rep_table)); | |
| 231 | - } | |
| 232 | - | |
| 233 | - // encode for plaintext | |
| 234 | - if ($enctype == 'text') { | |
| 235 | - return str_replace("\r\n", "\n", $mode == 'remove' ? strip_tags($str) : $str); | |
| 236 | - } | |
| 237 | - | |
| 238 | - if ($enctype == 'url') { | |
| 239 | - return rawurlencode($str); | |
| 240 | - } | |
| 241 | - | |
| 242 | - // encode for XML | |
| 243 | - if ($enctype == 'xml') { | |
| 244 | - return strtr($str, $xml_rep_table); | |
| 245 | - } | |
| 246 | - | |
| 247 | - // no encoding given -> return original string | |
| 248 | - return $str; | |
| 249 | - } | |
| 250 | - | |
| 251 | - /** | |
| 252 | - * Read input value and convert it for internal use | |
| 253 | - * Performs stripslashes() and charset conversion if necessary | |
| 254 | - * | |
| 255 | - * @param string $fname Field name to read | |
| 256 | - * @param int $source Source to get value from (see self::INPUT_*) | |
| 257 | - * @param bool $allow_html Allow HTML tags in field value | |
| 258 | - * @param string $charset Charset to convert into | |
| 259 | - * | |
| 260 | - * @return string Field value or NULL if not available | |
| 261 | - */ | |
| 262 | - public static function get_input_value($fname, $source, $allow_html = false, $charset = null) | |
| 263 | - { | |
| 264 | - $value = null; | |
| 265 | - | |
| 266 | - if (($source & self::INPUT_GET) && isset($_GET[$fname])) { | |
| 267 | - $value = $_GET[$fname]; | |
| 268 | - } | |
| 269 | - | |
| 270 | - if (($source & self::INPUT_POST) && isset($_POST[$fname])) { | |
| 271 | - $value = $_POST[$fname]; | |
| 272 | - } | |
| 273 | - | |
| 274 | - if (($source & self::INPUT_COOKIE) && isset($_COOKIE[$fname])) { | |
| 275 | - $value = $_COOKIE[$fname]; | |
| 276 | - } | |
| 277 | - | |
| 278 | - return self::parse_input_value($value, $allow_html, $charset); | |
| 279 | - } | |
| 280 | - | |
| 281 | - /** | |
| 282 | - * Parse/validate input value. See self::get_input_value() | |
| 283 | - * Performs stripslashes() and charset conversion if necessary | |
| 284 | - * | |
| 285 | - * @param string $value Input value | |
| 286 | - * @param bool $allow_html Allow HTML tags in field value | |
| 287 | - * @param string $charset Charset to convert into | |
| 288 | - * | |
| 289 | - * @return string Parsed value | |
| 290 | - */ | |
| 291 | - public static function parse_input_value($value, $allow_html = false, $charset = null) | |
| 292 | - { | |
| 293 | - global $OUTPUT; | |
| 294 | - | |
| 295 | - if (empty($value)) { | |
| 296 | - return $value; | |
| 297 | - } | |
| 298 | - | |
| 299 | - if (is_array($value)) { | |
| 300 | - foreach ($value as $idx => $val) { | |
| 301 | - $value[$idx] = self::parse_input_value($val, $allow_html, $charset); | |
| 302 | - } | |
| 303 | - | |
| 304 | - return $value; | |
| 305 | - } | |
| 306 | - | |
| 307 | - // remove HTML tags if not allowed | |
| 308 | - if (!$allow_html) { | |
| 309 | - $value = strip_tags($value); | |
| 310 | - } | |
| 311 | - | |
| 312 | - $output_charset = is_object($OUTPUT) ? $OUTPUT->get_charset() : null; | |
| 313 | - | |
| 314 | - // remove invalid characters (#1488124) | |
| 315 | - if ($output_charset == 'UTF-8') { | |
| 316 | - $value = rcube_charset::clean($value); | |
| 317 | - } | |
| 318 | - | |
| 319 | - // convert to internal charset | |
| 320 | - if ($charset && $output_charset) { | |
| 321 | - $value = rcube_charset::convert($value, $output_charset, $charset); | |
| 322 | - } | |
| 323 | - | |
| 324 | - return $value; | |
| 325 | - } | |
| 326 | - | |
| 327 | - /** | |
| 328 | - * Convert array of request parameters (prefixed with _) | |
| 329 | - * to a regular array with non-prefixed keys. | |
| 330 | - * | |
| 331 | - * @param int $mode Source to get value from (GPC) | |
| 332 | - * @param string $ignore PCRE expression to skip parameters by name | |
| 333 | - * @param bool $allow_html Allow HTML tags in field value | |
| 334 | - * | |
| 335 | - * @return array Hash array with all request parameters | |
| 336 | - */ | |
| 337 | - public static function request2param($mode = null, $ignore = 'task|action', $allow_html = false) | |
| 338 | - { | |
| 339 | - $out = []; | |
| 340 | - $src = $mode == self::INPUT_GET ? $_GET : ($mode == self::INPUT_POST ? $_POST : $_REQUEST); | |
| 341 | - | |
| 342 | - foreach (array_keys($src) as $key) { | |
| 343 | - $fname = $key[0] == '_' ? substr($key, 1) : $key; | |
| 344 | - if ($ignore && !preg_match('/^('.$ignore.')$/', $fname)) { | |
| 345 | - $out[$fname] = self::get_input_value($key, $mode, $allow_html); | |
| 346 | - } | |
| 347 | - } | |
| 348 | - | |
| 349 | - return $out; | |
| 350 | - } | |
| 351 | - | |
| 352 | - /** | |
| 353 | - * Convert the given string into a valid HTML identifier | |
| 354 | - * Same functionality as done in app.js with rcube_webmail.html_identifier() | |
| 355 | - * | |
| 356 | - * @param string $str String input | |
| 357 | - * @param bool $encode Use base64 encoding | |
| 358 | - * | |
| 359 | - * @param string Valid HTML identifier | |
| 360 | - */ | |
| 361 | - public static function html_identifier($str, $encode = false) | |
| 362 | - { | |
| 363 | - if ($encode) { | |
| 364 | - return rtrim(strtr(base64_encode($str), '+/', '-_'), '='); | |
| 365 | - } | |
| 366 | - | |
| 367 | - return asciiwords($str, true, '_'); | |
| 368 | - } | |
| 369 | - | |
| 370 | - /** | |
| 371 | - * Replace all css definitions with #container [def] | |
| 372 | - * and remove css-inlined scripting, make position style safe | |
| 373 | - * | |
| 374 | - * @param string $source CSS source code | |
| 375 | - * @param string $container_id Container ID to use as prefix | |
| 376 | - * @param bool $allow_remote Allow remote content | |
| 377 | - * @param string $prefix Prefix to be added to id/class identifier | |
| 378 | - * | |
| 379 | - * @return string Modified CSS source | |
| 380 | - */ | |
| 381 | - public static function mod_css_styles($source, $container_id, $allow_remote = false, $prefix = '') | |
| 382 | - { | |
| 383 | - $last_pos = 0; | |
| 384 | - $replacements = new rcube_string_replacer; | |
| 385 | - | |
| 386 | - // ignore the whole block if evil styles are detected | |
| 387 | - $source = self::xss_entity_decode($source); | |
| 388 | - $stripped = preg_replace('/[^a-z\(:;]/i', '', $source); | |
| 389 | - $evilexpr = 'expression|behavior|javascript:|import[^a]'.(!$allow_remote ? '|url\((?!data:image)' : ''); | |
| 390 | - | |
| 391 | - if (preg_match("/$evilexpr/i", $stripped)) { | |
| 392 | - return '/* evil! */'; | |
| 393 | - } | |
| 394 | - | |
| 395 | - $strict_url_regexp = '!url\s*\(\s*["\']?(https?:)//[a-z0-9/._+-]+["\']?\s*\)!Uims'; | |
| 396 | - | |
| 397 | - // cut out all contents between { and } | |
| 398 | - while (($pos = strpos($source, '{', $last_pos)) && ($pos2 = strpos($source, '}', $pos))) { | |
| 399 | - $nested = strpos($source, '{', $pos + 1); | |
| 400 | - if ($nested && $nested < $pos2) // when dealing with nested blocks (e.g. @media), take the inner one | |
| 401 | - { | |
| 402 | - $pos = $nested; | |
| 403 | - } | |
| 404 | - $length = $pos2 - $pos - 1; | |
| 405 | - $styles = substr($source, $pos + 1, $length); | |
| 406 | - | |
| 407 | - // Convert position:fixed to position:absolute (#5264) | |
| 408 | - $styles = preg_replace('/position[^a-z]*:[\s\r\n]*fixed/i', 'position: absolute', $styles); | |
| 409 | - | |
| 410 | - // check every line of a style block... | |
| 411 | - if ($allow_remote) { | |
| 412 | - $a_styles = preg_split('/;[\r\n]*/', $styles, -1, PREG_SPLIT_NO_EMPTY); | |
| 413 | - | |
| 414 | - for ($i = 0, $len = count($a_styles) ; $i < $len ; $i++) { | |
| 415 | - $line = $a_styles[$i]; | |
| 416 | - $stripped = preg_replace('/[^a-z\(:;]/i', '', $line); | |
| 417 | - | |
| 418 | - // allow data:image uri, join with continuation | |
| 419 | - if (stripos($stripped, 'url(data:image')) { | |
| 420 | - $a_styles[$i] .= ';'.$a_styles[$i + 1]; | |
| 421 | - unset($a_styles[$i + 1]); | |
| 422 | - } // allow strict url() values only | |
| 423 | - elseif (stripos($stripped, 'url(') && !preg_match($strict_url_regexp, $line)) { | |
| 424 | - $a_styles = ['/* evil! */']; | |
| 425 | - break; | |
| 426 | - } | |
| 427 | - } | |
| 428 | - | |
| 429 | - $styles = implode(";\n", $a_styles); | |
| 430 | - } | |
| 431 | - | |
| 432 | - $key = $replacements->add($styles); | |
| 433 | - $repl = $replacements->get_replacement($key); | |
| 434 | - $source = substr_replace($source, $repl, $pos + 1, $length); | |
| 435 | - $last_pos = $pos2 - ($length - strlen($repl)); | |
| 436 | - } | |
| 437 | - | |
| 438 | - // remove html comments | |
| 439 | - $source = preg_replace('/(^\s*<\!--)|(-->\s*$)/m', '', $source); | |
| 440 | - | |
| 441 | - // add #container to each tag selector and prefix to id/class identifiers | |
| 442 | - if ($container_id || $prefix) { | |
| 443 | - // (?!##str) below is to not match with ##str_replacement_0## | |
| 444 | - // from rcube_string_replacer used above, this is needed for | |
| 445 | - // cases like @media { body { position: fixed; } } (#5811) | |
| 446 | - $regexp = '/(^\s*|,\s*|\}\s*|\{\s*)((?!##str):?[a-z0-9\._#\*\[][a-z0-9\._:\(\)#=~ \[\]"\|\>\+\$\^-]*)/im'; | |
| 447 | - $callback = function ($matches) use ($container_id, $prefix) { | |
| 448 | - $replace = $matches[2]; | |
| 449 | - | |
| 450 | - if (stripos($replace, ':root') === 0) { | |
| 451 | - $replace = substr($replace, 5); | |
| 452 | - } | |
| 453 | - | |
| 454 | - if ($prefix) { | |
| 455 | - $replace = str_replace(['.', '#'], [".$prefix", "#$prefix"], $replace); | |
| 456 | - } | |
| 457 | - | |
| 458 | - if ($container_id) { | |
| 459 | - $replace = "#$container_id ".$replace; | |
| 460 | - } | |
| 461 | - | |
| 462 | - // Remove redundant spaces (for simpler testing) | |
| 463 | - $replace = preg_replace('/\s+/', ' ', $replace); | |
| 464 | - | |
| 465 | - return str_replace($matches[2], $replace, $matches[0]); | |
| 466 | - }; | |
| 467 | - | |
| 468 | - $source = preg_replace_callback($regexp, $callback, $source); | |
| 469 | - } | |
| 470 | - | |
| 471 | - // replace body definition because we also stripped off the <body> tag | |
| 472 | - if ($container_id) { | |
| 473 | - $regexp = '/#'.preg_quote($container_id, '/').'\s+body/i'; | |
| 474 | - $source = preg_replace($regexp, "#$container_id", $source); | |
| 475 | - } | |
| 476 | - | |
| 477 | - // put block contents back in | |
| 478 | - $source = $replacements->resolve($source); | |
| 479 | - | |
| 480 | - return $source; | |
| 481 | - } | |
| 482 | - | |
| 483 | - /** | |
| 484 | - * Generate CSS classes from mimetype and filename extension | |
| 485 | - * | |
| 486 | - * @param string $mimetype Mimetype | |
| 487 | - * @param string $filename Filename | |
| 488 | - * | |
| 489 | - * @return string CSS classes separated by space | |
| 490 | - */ | |
| 491 | - public static function file2class($mimetype, $filename) | |
| 492 | - { | |
| 493 | - $mimetype = strtolower($mimetype); | |
| 494 | - $filename = strtolower($filename); | |
| 495 | - | |
| 496 | - [$primary, $secondary] = explode('/', $mimetype); | |
| 497 | - | |
| 498 | - $classes = [$primary ? : 'unknown']; | |
| 499 | - | |
| 500 | - if ($secondary) { | |
| 501 | - $classes[] = $secondary; | |
| 502 | - } | |
| 503 | - | |
| 504 | - if (preg_match('/\.([a-z0-9]+)$/', $filename, $m)) { | |
| 505 | - if (!in_array($m[1], $classes)) { | |
| 506 | - $classes[] = $m[1]; | |
| 507 | - } | |
| 508 | - } | |
| 509 | - | |
| 510 | - return implode(' ', $classes); | |
| 511 | - } | |
| 512 | - | |
| 513 | - /** | |
| 514 | - * Decode escaped entities used by known XSS exploits. | |
| 515 | - * See http://downloads.securityfocus.com/vulnerabilities/exploits/26800.eml for examples | |
| 516 | - * | |
| 517 | - * @param string $content CSS content to decode | |
| 518 | - * | |
| 519 | - * @return string Decoded string | |
| 520 | - */ | |
| 521 | - public static function xss_entity_decode($content) | |
| 522 | - { | |
| 523 | - $callback = function ($matches) { | |
| 524 | - return chr(hexdec($matches[1])); | |
| 525 | - }; | |
| 526 | - | |
| 527 | - $out = html_entity_decode(html_entity_decode($content)); | |
| 528 | - $out = trim(preg_replace('/(^<!--|-->$)/', '', trim($out))); | |
| 529 | - $out = preg_replace_callback('/\\\([0-9a-f]{2,6})\s*/i', $callback, $out); | |
| 530 | - $out = preg_replace('/\\\([^0-9a-f])/i', '\\1', $out); | |
| 531 | - $out = preg_replace('#/\*.*\*/#Ums', '', $out); | |
| 532 | - $out = strip_tags($out); | |
| 533 | - | |
| 534 | - return $out; | |
| 535 | - } | |
| 536 | - | |
| 537 | - /** | |
| 538 | - * Check if we can process not exceeding memory_limit | |
| 539 | - * | |
| 540 | - * @param integer $need Required amount of memory | |
| 541 | - * | |
| 542 | - * @return bool True if memory won't be exceeded, False otherwise | |
| 543 | - */ | |
| 544 | - public static function mem_check($need) | |
| 545 | - { | |
| 546 | - $mem_limit = parse_bytes(ini_get('memory_limit')); | |
| 547 | - $memory = function_exists('memory_get_usage') ? memory_get_usage() : 16 * 1024 * 1024; // safe value: 16MB | |
| 548 | - | |
| 549 | - return $mem_limit > 0 && $memory + $need > $mem_limit ? false : true; | |
| 550 | - } | |
| 551 | - | |
| 552 | - /** | |
| 553 | - * Check if working in SSL mode | |
| 554 | - * | |
| 555 | - * @param int $port HTTPS port number | |
| 556 | - * @param bool $use_https Enables 'use_https' option checking | |
| 557 | - * | |
| 558 | - * @return bool True in SSL mode, False otherwise | |
| 559 | - */ | |
| 560 | - public static function https_check($port = null, $use_https = true) | |
| 561 | - { | |
| 562 | - if (!empty($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) != 'off') { | |
| 563 | - return true; | |
| 564 | - } | |
| 565 | - | |
| 566 | - if (!empty($_SERVER['HTTP_X_FORWARDED_PROTO']) | |
| 567 | - && strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == 'https' | |
| 568 | - && in_array($_SERVER['REMOTE_ADDR'], rcube::get_instance()->config->get('proxy_whitelist', [])) | |
| 569 | - ) { | |
| 570 | - return true; | |
| 571 | - } | |
| 572 | - | |
| 573 | - if ($port && $_SERVER['SERVER_PORT'] == $port) { | |
| 574 | - return true; | |
| 575 | - } | |
| 576 | - | |
| 577 | - if ($use_https && rcube::get_instance()->config->get('use_https')) { | |
| 578 | - return true; | |
| 579 | - } | |
| 580 | - | |
| 581 | - return false; | |
| 582 | - } | |
| 583 | - | |
| 584 | - /** | |
| 585 | - * Replaces hostname variables. | |
| 586 | - * | |
| 587 | - * @param string $name Hostname | |
| 588 | - * @param string $host Optional IMAP hostname | |
| 589 | - * | |
| 590 | - * @return string Hostname | |
| 591 | - */ | |
| 592 | - public static function parse_host($name, $host = '') | |
| 593 | - { | |
| 594 | - if (!is_string($name)) { | |
| 595 | - return $name; | |
| 596 | - } | |
| 597 | - | |
| 598 | - // %n - host | |
| 599 | - $n = self::server_name(); | |
| 600 | - // %t - host name without first part, e.g. %n=mail.domain.tld, %t=domain.tld | |
| 601 | - // If %n=domain.tld then %t=domain.tld as well (remains valid) | |
| 602 | - $t = preg_replace('/^[^.]+\.(?![^.]+$)/', '', $n); | |
| 603 | - // %d - domain name without first part (up to domain.tld) | |
| 604 | - $d = preg_replace('/^[^.]+\.(?![^.]+$)/', '', self::server_name('HTTP_HOST')); | |
| 605 | - // %h - IMAP host | |
| 606 | - $h = $_SESSION['storage_host'] ? : $host; | |
| 607 | - // %z - IMAP domain without first part, e.g. %h=imap.domain.tld, %z=domain.tld | |
| 608 | - // If %h=domain.tld then %z=domain.tld as well (remains valid) | |
| 609 | - $z = preg_replace('/^[^.]+\.(?![^.]+$)/', '', $h); | |
| 610 | - // %s - domain name after the '@' from e-mail address provided at login screen. | |
| 611 | - // Returns FALSE if an invalid email is provided | |
| 612 | - if (strpos($name, '%s') !== false) { | |
| 613 | - $user_email = self::idn_to_ascii(self::get_input_value('_user', self::INPUT_POST)); | |
| 614 | - $matches = preg_match('/(.*)@([a-z0-9\.\-\[\]\:]+)/i', $user_email, $s); | |
| 615 | - if ($matches < 1 || filter_var($s[1]."@".$s[2], FILTER_VALIDATE_EMAIL) === false) { | |
| 616 | - return false; | |
| 617 | - } | |
| 618 | - } | |
| 619 | - | |
| 620 | - return str_replace(['%n', '%t', '%d', '%h', '%z', '%s'], [$n, $t, $d, $h, $z, $s[2]], $name); | |
| 621 | - } | |
| 622 | - | |
| 623 | - /** | |
| 624 | - * Returns the server name after checking it against trusted hostname patterns. | |
| 625 | - * | |
| 626 | - * Returns 'localhost' and logs a warning when the hostname is not trusted. | |
| 627 | - * | |
| 628 | - * @param string $type The $_SERVER key, e.g. 'HTTP_HOST', Default: 'SERVER_NAME'. | |
| 629 | - * @param bool $strip_port Strip port from the host name | |
| 630 | - * | |
| 631 | - * @return string Server name | |
| 632 | - */ | |
| 633 | - public static function server_name($type = null, $strip_port = true) | |
| 634 | - { | |
| 635 | - $name = $_SERVER[$type ? : 'SERVER_NAME']; | |
| 636 | - $rcube = rcube::get_instance(); | |
| 637 | - $patterns = (array)$rcube->config->get('trusted_host_patterns'); | |
| 638 | - | |
| 639 | - if ($strip_port) { | |
| 640 | - $name = preg_replace('/:\d+$/', '', $name); | |
| 641 | - } | |
| 642 | - | |
| 643 | - if (empty($patterns) || in_array_nocase($name, $patterns)) { | |
| 644 | - return $name; | |
| 645 | - } | |
| 646 | - | |
| 647 | - if (!empty($name)) { | |
| 648 | - foreach ($patterns as $pattern) { | |
| 649 | - if (preg_match("/$pattern/", $name)) { | |
| 650 | - return $name; | |
| 651 | - } | |
| 652 | - } | |
| 653 | - | |
| 654 | - $rcube->raise_error([ | |
| 655 | - 'file' => __FILE__, | |
| 656 | - 'line' => __LINE__, | |
| 657 | - 'message' => "Specified host is not trusted. Using 'localhost'.", | |
| 658 | - ], true, false); | |
| 659 | - } | |
| 660 | - | |
| 661 | - return 'localhost'; | |
| 662 | - } | |
| 663 | - | |
| 664 | - /** | |
| 665 | - * Returns remote IP address and forwarded addresses if found | |
| 666 | - * | |
| 667 | - * @return string Remote IP address(es) | |
| 668 | - */ | |
| 669 | - public static function remote_ip() | |
| 670 | - { | |
| 671 | - $address = $_SERVER['REMOTE_ADDR']; | |
| 672 | - | |
| 673 | - // append the NGINX X-Real-IP header, if set | |
| 674 | - if (!empty($_SERVER['HTTP_X_REAL_IP'])) { | |
| 675 | - $remote_ip[] = 'X-Real-IP: '.$_SERVER['HTTP_X_REAL_IP']; | |
| 676 | - } | |
| 677 | - | |
| 678 | - // append the X-Forwarded-For header, if set | |
| 679 | - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { | |
| 680 | - $remote_ip[] = 'X-Forwarded-For: '.$_SERVER['HTTP_X_FORWARDED_FOR']; | |
| 681 | - } | |
| 682 | - | |
| 683 | - if (!empty($remote_ip)) { | |
| 684 | - $address .= '('.implode(',', $remote_ip).')'; | |
| 685 | - } | |
| 686 | - | |
| 687 | - return $address; | |
| 688 | - } | |
| 689 | - | |
| 690 | - /** | |
| 691 | - * Returns the real remote IP address | |
| 692 | - * | |
| 693 | - * @return string Remote IP address | |
| 694 | - */ | |
| 695 | - public static function remote_addr() | |
| 696 | - { | |
| 697 | - // Check if any of the headers are set first to improve performance | |
| 698 | - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR']) || !empty($_SERVER['HTTP_X_REAL_IP'])) { | |
| 699 | - $proxy_whitelist = rcube::get_instance()->config->get('proxy_whitelist', []); | |
| 700 | - if (in_array($_SERVER['REMOTE_ADDR'], $proxy_whitelist)) { | |
| 701 | - if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) { | |
| 702 | - foreach (array_reverse(explode(',', $_SERVER['HTTP_X_FORWARDED_FOR'])) as $forwarded_ip) { | |
| 703 | - $forwarded_ip = trim($forwarded_ip); | |
| 704 | - if (!in_array($forwarded_ip, $proxy_whitelist)) { | |
| 705 | - return $forwarded_ip; | |
| 706 | - } | |
| 707 | - } | |
| 708 | - } | |
| 709 | - | |
| 710 | - if (!empty($_SERVER['HTTP_X_REAL_IP'])) { | |
| 711 | - return $_SERVER['HTTP_X_REAL_IP']; | |
| 712 | - } | |
| 713 | - } | |
| 714 | - } | |
| 715 | - | |
| 716 | - if (!empty($_SERVER['REMOTE_ADDR'])) { | |
| 717 | - return $_SERVER['REMOTE_ADDR']; | |
| 718 | - } | |
| 719 | - | |
| 720 | - return ''; | |
| 721 | - } | |
| 722 | - | |
| 723 | - /** | |
| 724 | - * Read a specific HTTP request header. | |
| 725 | - * | |
| 726 | - * @param string $name Header name | |
| 727 | - * | |
| 728 | - * @return string|null Header value or null if not available | |
| 729 | - */ | |
| 730 | - public static function request_header($name) | |
| 731 | - { | |
| 732 | - if (function_exists('apache_request_headers')) { | |
| 733 | - $headers = apache_request_headers(); | |
| 734 | - $key = strtoupper($name); | |
| 735 | - } else { | |
| 736 | - $headers = $_SERVER; | |
| 737 | - $key = 'HTTP_'.strtoupper(strtr($name, '-', '_')); | |
| 738 | - } | |
| 739 | - | |
| 740 | - if (!empty($headers)) { | |
| 741 | - $headers = array_change_key_case($headers, CASE_UPPER); | |
| 742 | - | |
| 743 | - return $headers[$key]; | |
| 744 | - } | |
| 745 | - } | |
| 746 | - | |
| 747 | - /** | |
| 748 | - * Explode quoted string | |
| 749 | - * | |
| 750 | - * @param string $delimiter Delimiter expression string for preg_match() | |
| 751 | - * @param string $string Input string | |
| 752 | - * | |
| 753 | - * @return array String items | |
| 754 | - */ | |
| 755 | - public static function explode_quoted_string($delimiter, $string) | |
| 756 | - { | |
| 757 | - $result = []; | |
| 758 | - $strlen = strlen($string); | |
| 759 | - | |
| 760 | - for ($q = $p = $i = 0 ; $i < $strlen ; $i++) { | |
| 761 | - if ($string[$i] == "\"" && $string[$i - 1] != "\\") { | |
| 762 | - $q = $q ? false : true; | |
| 763 | - } elseif (!$q && preg_match("/$delimiter/", $string[$i])) { | |
| 764 | - $result[] = substr($string, $p, $i - $p); | |
| 765 | - $p = $i + 1; | |
| 766 | - } | |
| 767 | - } | |
| 768 | - | |
| 769 | - $result[] = (string)substr($string, $p); | |
| 770 | - | |
| 771 | - return $result; | |
| 772 | - } | |
| 773 | - | |
| 774 | - /** | |
| 775 | - * Improved equivalent to strtotime() | |
| 776 | - * | |
| 777 | - * @param string $date Date string | |
| 778 | - * @param DateTimeZone $timezone Timezone to use for DateTime object | |
| 779 | - * | |
| 780 | - * @return int Unix timestamp | |
| 781 | - */ | |
| 782 | - public static function strtotime($date, $timezone = null) | |
| 783 | - { | |
| 784 | - $date = self::clean_datestr($date); | |
| 785 | - $tzname = $timezone ? ' '.$timezone->getName() : ''; | |
| 786 | - | |
| 787 | - // unix timestamp | |
| 788 | - if (is_numeric($date)) { | |
| 789 | - return (int)$date; | |
| 790 | - } | |
| 791 | - | |
| 792 | - // It can be very slow when provided string is not a date and very long | |
| 793 | - if (strlen($date) > 128) { | |
| 794 | - $date = substr($date, 0, 128); | |
| 795 | - } | |
| 796 | - | |
| 797 | - // if date parsing fails, we have a date in non-rfc format. | |
| 798 | - // remove token from the end and try again | |
| 799 | - while (($ts = @strtotime($date.$tzname)) === false || $ts < 0) { | |
| 800 | - if (($pos = strrpos($date, ' ')) === false) { | |
| 801 | - break; | |
| 802 | - } | |
| 803 | - | |
| 804 | - $date = rtrim(substr($date, 0, $pos)); | |
| 805 | - } | |
| 806 | - | |
| 807 | - return (int)$ts; | |
| 808 | - } | |
| 809 | - | |
| 810 | - /** | |
| 811 | - * Date parsing function that turns the given value into a DateTime object | |
| 812 | - * | |
| 813 | - * @param string $date Date string | |
| 814 | - * @param DateTimeZone $timezone Timezone to use for DateTime object | |
| 815 | - * | |
| 816 | - * @return DateTime|false DateTime object or False on failure | |
| 817 | - */ | |
| 818 | - public static function anytodatetime($date, $timezone = null) | |
| 819 | - { | |
| 820 | - if ($date instanceof DateTime) { | |
| 821 | - return $date; | |
| 822 | - } | |
| 823 | - | |
| 824 | - $dt = false; | |
| 825 | - $date = self::clean_datestr($date); | |
| 826 | - | |
| 827 | - // try to parse string with DateTime first | |
| 828 | - if (!empty($date)) { | |
| 829 | - try { | |
| 830 | - $_date = preg_match('/^[0-9]+$/', $date) ? "@$date" : $date; | |
| 831 | - $dt = $timezone ? new DateTime($_date, $timezone) : new DateTime($_date); | |
| 832 | - } catch (Exception $e) { | |
| 833 | - // ignore | |
| 834 | - } | |
| 835 | - } | |
| 836 | - | |
| 837 | - // try our advanced strtotime() method | |
| 838 | - if (!$dt && ($timestamp = self::strtotime($date, $timezone))) { | |
| 839 | - try { | |
| 840 | - $dt = new DateTime("@".$timestamp); | |
| 841 | - if ($timezone) { | |
| 842 | - $dt->setTimezone($timezone); | |
| 843 | - } | |
| 844 | - } catch (Exception $e) { | |
| 845 | - // ignore | |
| 846 | - } | |
| 847 | - } | |
| 848 | - | |
| 849 | - return $dt; | |
| 850 | - } | |
| 851 | - | |
| 852 | - /** | |
| 853 | - * Clean up date string for strtotime() input | |
| 854 | - * | |
| 855 | - * @param string $date Date string | |
| 856 | - * | |
| 857 | - * @return string Date string | |
| 858 | - */ | |
| 859 | - public static function clean_datestr($date) | |
| 860 | - { | |
| 861 | - $date = trim($date); | |
| 862 | - | |
| 863 | - // check for MS Outlook vCard date format YYYYMMDD | |
| 864 | - if (preg_match('/^([12][90]\d\d)([01]\d)([0123]\d)$/', $date, $m)) { | |
| 865 | - return sprintf('%04d-%02d-%02d 00:00:00', intval($m[1]), intval($m[2]), intval($m[3])); | |
| 866 | - } | |
| 867 | - | |
| 868 | - // Clean malformed data | |
| 869 | - $date = preg_replace( | |
| 870 | - [ | |
| 871 | - '/\(.*\)/', // remove RFC comments | |
| 872 | - '/GMT\s*([+-][0-9]+)/', // support non-standard "GMTXXXX" literal | |
| 873 | - '/[^a-z0-9\x20\x09:\/\.+-]/i', // remove any invalid characters | |
| 874 | - '/\s*(Mon|Tue|Wed|Thu|Fri|Sat|Sun)\s*/i', // remove weekday names | |
| 875 | - ], | |
| 876 | - [ | |
| 877 | - '', | |
| 878 | - '\\1', | |
| 879 | - '', | |
| 880 | - '', | |
| 881 | - ], | |
| 882 | - $date | |
| 883 | - ); | |
| 884 | - | |
| 885 | - $date = trim($date); | |
| 886 | - | |
| 887 | - // try to fix dd/mm vs. mm/dd discrepancy, we can't do more here | |
| 888 | - if (preg_match('/^(\d{1,2})[.\/-](\d{1,2})[.\/-](\d{4})(\s.*)?$/', $date, $m)) { | |
| 889 | - $mdy = $m[2] > 12 && $m[1] <= 12; | |
| 890 | - $day = $mdy ? $m[2] : $m[1]; | |
| 891 | - $month = $mdy ? $m[1] : $m[2]; | |
| 892 | - $date = sprintf('%04d-%02d-%02d%s', $m[3], $month, $day, $m[4] ? : ' 00:00:00'); | |
| 893 | - } // I've found that YYYY.MM.DD is recognized wrong, so here's a fix | |
| 894 | - elseif (preg_match('/^(\d{4})\.(\d{1,2})\.(\d{1,2})(\s.*)?$/', $date, $m)) { | |
| 895 | - $date = sprintf('%04d-%02d-%02d%s', $m[1], $m[2], $m[3], $m[4] ? : ' 00:00:00'); | |
| 896 | - } | |
| 897 | - | |
| 898 | - return $date; | |
| 899 | - } | |
| 900 | - | |
| 901 | - /** | |
| 902 | - * Turns the given date-only string in defined format into YYYY-MM-DD format. | |
| 903 | - * | |
| 904 | - * Supported formats: 'Y/m/d', 'Y.m.d', 'd-m-Y', 'd/m/Y', 'd.m.Y', 'j.n.Y' | |
| 905 | - * | |
| 906 | - * @param string $date Date string | |
| 907 | - * @param string $format Input date format | |
| 908 | - * | |
| 909 | - * @return string Date string in YYYY-MM-DD format, or the original string | |
| 910 | - * if format is not supported | |
| 911 | - */ | |
| 912 | - public static function format_datestr($date, $format) | |
| 913 | - { | |
| 914 | - $format_items = preg_split('/[.-\/\\\\]/', $format); | |
| 915 | - $date_items = preg_split('/[.-\/\\\\]/', $date); | |
| 916 | - $iso_format = '%04d-%02d-%02d'; | |
| 917 | - | |
| 918 | - if (count($format_items) == 3 && count($date_items) == 3) { | |
| 919 | - if ($format_items[0] == 'Y') { | |
| 920 | - $date = sprintf($iso_format, $date_items[0], $date_items[1], $date_items[2]); | |
| 921 | - } elseif (strpos('dj', $format_items[0]) !== false) { | |
| 922 | - $date = sprintf($iso_format, $date_items[2], $date_items[1], $date_items[0]); | |
| 923 | - } elseif (strpos('mn', $format_items[0]) !== false) { | |
| 924 | - $date = sprintf($iso_format, $date_items[2], $date_items[0], $date_items[1]); | |
| 925 | - } | |
| 926 | - } | |
| 927 | - | |
| 928 | - return $date; | |
| 929 | - } | |
| 930 | - | |
| 931 | - /** | |
| 932 | - * Wrapper for idn_to_ascii with support for e-mail address. | |
| 933 | - * | |
| 934 | - * Warning: Domain names may be lowercase'd. | |
| 935 | - * Warning: An empty string may be returned on invalid domain. | |
| 936 | - * | |
| 937 | - * @param string $str Decoded e-mail address | |
| 938 | - * | |
| 939 | - * @return string Encoded e-mail address | |
| 940 | - */ | |
| 941 | - public static function idn_to_ascii($str) | |
| 942 | - { | |
| 943 | - return self::idn_convert($str, true); | |
| 944 | - } | |
| 945 | - | |
| 946 | - /** | |
| 947 | - * Wrapper for idn_to_utf8 with support for e-mail address | |
| 948 | - * | |
| 949 | - * @param string $str Decoded e-mail address | |
| 950 | - * | |
| 951 | - * @return string Encoded e-mail address | |
| 952 | - */ | |
| 953 | - public static function idn_to_utf8($str) | |
| 954 | - { | |
| 955 | - return self::idn_convert($str, false); | |
| 956 | - } | |
| 957 | - | |
| 958 | - /** | |
| 959 | - * Convert a string to ascii or utf8 (using IDNA standard) | |
| 960 | - * | |
| 961 | - * @param string $input Decoded e-mail address | |
| 962 | - * @param boolean $is_utf Convert by idn_to_ascii if true and idn_to_utf8 if false | |
| 963 | - * | |
| 964 | - * @return string Encoded e-mail address | |
| 965 | - */ | |
| 966 | - public static function idn_convert($input, $is_utf = false) | |
| 967 | - { | |
| 968 | - if ($at = strpos($input, '@')) { | |
| 969 | - $user = substr($input, 0, $at); | |
| 970 | - $domain = substr($input, $at + 1); | |
| 971 | - } else { | |
| 972 | - $user = ''; | |
| 973 | - $domain = $input; | |
| 974 | - } | |
| 975 | - | |
| 976 | - // Note that in PHP 7.2/7.3 calling idn_to_* functions with default arguments | |
| 977 | - // throws a warning, so we have to set the variant explicitely (#6075) | |
| 978 | - $variant = defined('INTL_IDNA_VARIANT_UTS46') ? INTL_IDNA_VARIANT_UTS46 : null; | |
| 979 | - $options = 0; | |
| 980 | - | |
| 981 | - // Because php-intl extension lowercases domains and return false | |
| 982 | - // on invalid input (#6224), we skip conversion when not needed | |
| 983 | - // for compatibility with our Net_IDNA2 wrappers in bootstrap.php | |
| 984 | - | |
| 985 | - if ($is_utf) { | |
| 986 | - if (preg_match('/[^\x20-\x7E]/', $domain)) { | |
| 987 | - $options = defined('IDNA_NONTRANSITIONAL_TO_ASCII') ? IDNA_NONTRANSITIONAL_TO_ASCII : 0; | |
| 988 | - $domain = idn_to_ascii($domain, $options, $variant); | |
| 989 | - } | |
| 990 | - } elseif (preg_match('/(^|\.)xn--/i', $domain)) { | |
| 991 | - $options = defined('IDNA_NONTRANSITIONAL_TO_UNICODE') ? IDNA_NONTRANSITIONAL_TO_UNICODE : 0; | |
| 992 | - $domain = idn_to_utf8($domain, $options, $variant); | |
| 993 | - } | |
| 994 | - | |
| 995 | - if ($domain === false) { | |
| 996 | - return ''; | |
| 997 | - } | |
| 998 | - | |
| 999 | - return $at ? $user.'@'.$domain : $domain; | |
| 1000 | - } | |
| 1001 | - | |
| 1002 | - /** | |
| 1003 | - * Split the given string into word tokens | |
| 1004 | - * | |
| 1005 | - * @param string $str Input to tokenize | |
| 1006 | - * @param int $minlen Minimum length of a single token | |
| 1007 | - * | |
| 1008 | - * @return array List of tokens | |
| 1009 | - */ | |
| 1010 | - public static function tokenize_string($str, $minlen = 2) | |
| 1011 | - { | |
| 1012 | - $expr = ['/[\s;,"\'\/+-]+/ui', '/(\d)[-.\s]+(\d)/u']; | |
| 1013 | - $repl = [' ', '\\1\\2']; | |
| 1014 | - | |
| 1015 | - if ($minlen > 1) { | |
| 1016 | - $minlen--; | |
| 1017 | - $expr[] = "/(^|\s+)\w{1,$minlen}(\s+|$)/u"; | |
| 1018 | - $repl[] = ' '; | |
| 1019 | - } | |
| 1020 | - | |
| 1021 | - return array_filter(explode(" ", preg_replace($expr, $repl, $str))); | |
| 1022 | - } | |
| 1023 | - | |
| 1024 | - /** | |
| 1025 | - * Normalize the given string for fulltext search. | |
| 1026 | - * Currently only optimized for ISO-8859-1 and ISO-8859-2 characters; to be extended | |
| 1027 | - * | |
| 1028 | - * @param string $str Input string (UTF-8) | |
| 1029 | - * @param bool $as_array True to return list of words as array | |
| 1030 | - * @param int $minlen Minimum length of tokens | |
| 1031 | - * | |
| 1032 | - * @return string|array Normalized string or a list of normalized tokens | |
| 1033 | - */ | |
| 1034 | - public static function normalize_string($str, $as_array = false, $minlen = 2) | |
| 1035 | - { | |
| 1036 | - // replace 4-byte unicode characters with '?' character, | |
| 1037 | - // these are not supported in default utf-8 charset on mysql, | |
| 1038 | - // the chance we'd need them in searching is very low | |
| 1039 | - $str = preg_replace( | |
| 1040 | - '/(' | |
| 1041 | - .'\xF0[\x90-\xBF][\x80-\xBF]{2}' | |
| 1042 | - .'|[\xF1-\xF3][\x80-\xBF]{3}' | |
| 1043 | - .'|\xF4[\x80-\x8F][\x80-\xBF]{2}' | |
| 1044 | - .')/', | |
| 1045 | - '?', | |
| 1046 | - $str | |
| 1047 | - ); | |
| 1048 | - | |
| 1049 | - // split by words | |
| 1050 | - $arr = self::tokenize_string($str, $minlen); | |
| 1051 | - | |
| 1052 | - // detect character set | |
| 1053 | - if (utf8_encode(utf8_decode($str)) == $str) { | |
| 1054 | - // ISO-8859-1 (or ASCII) | |
| 1055 | - preg_match_all('/./u', 'äâàåáãæçéêëèïîìíñöôòøõóüûùúýÿ', $keys); | |
| 1056 | - preg_match_all('/./', 'aaaaaaaceeeeiiiinoooooouuuuyy', $values); | |
| 1057 | - | |
| 1058 | - $mapping = array_combine($keys[0], $values[0]); | |
| 1059 | - $mapping = array_merge($mapping, ['ß' => 'ss', 'ae' => 'a', 'oe' => 'o', 'ue' => 'u']); | |
| 1060 | - } elseif (rcube_charset::convert(rcube_charset::convert($str, 'UTF-8', 'ISO-8859-2'), 'ISO-8859-2', 'UTF-8') == $str) { | |
| 1061 | - // ISO-8859-2 | |
| 1062 | - preg_match_all('/./u', 'ąáâäćçčéęëěíîłľĺńňóôöŕřśšşťţůúűüźžżý', $keys); | |
| 1063 | - preg_match_all('/./', 'aaaaccceeeeiilllnnooorrsssttuuuuzzzy', $values); | |
| 1064 | - | |
| 1065 | - $mapping = array_combine($keys[0], $values[0]); | |
| 1066 | - $mapping = array_merge($mapping, ['ß' => 'ss', 'ae' => 'a', 'oe' => 'o', 'ue' => 'u']); | |
| 1067 | - } | |
| 1068 | - | |
| 1069 | - foreach ($arr as $i => $part) { | |
| 1070 | - $part = mb_strtolower($part); | |
| 1071 | - | |
| 1072 | - if (!empty($mapping)) { | |
| 1073 | - $part = strtr($part, $mapping); | |
| 1074 | - } | |
| 1075 | - | |
| 1076 | - $arr[$i] = $part; | |
| 1077 | - } | |
| 1078 | - | |
| 1079 | - return $as_array ? $arr : implode(' ', $arr); | |
| 1080 | - } | |
| 1081 | - | |
| 1082 | - /** | |
| 1083 | - * Compare two strings for matching words (order not relevant) | |
| 1084 | - * | |
| 1085 | - * @param string $haystack Haystack | |
| 1086 | - * @param string $needle Needle | |
| 1087 | - * | |
| 1088 | - * @return bool True if match, False otherwise | |
| 1089 | - */ | |
| 1090 | - public static function words_match($haystack, $needle) | |
| 1091 | - { | |
| 1092 | - $a_needle = self::tokenize_string($needle, 1); | |
| 1093 | - $_haystack = implode(' ', self::tokenize_string($haystack, 1)); | |
| 1094 | - $valid = strlen($_haystack) > 0; | |
| 1095 | - $hits = 0; | |
| 1096 | - | |
| 1097 | - foreach ($a_needle as $w) { | |
| 1098 | - if ($valid) { | |
| 1099 | - if (stripos($_haystack, $w) !== false) { | |
| 1100 | - $hits++; | |
| 1101 | - } | |
| 1102 | - } elseif (stripos($haystack, $w) !== false) { | |
| 1103 | - $hits++; | |
| 1104 | - } | |
| 1105 | - } | |
| 1106 | - | |
| 1107 | - return $hits >= count($a_needle); | |
| 1108 | - } | |
| 1109 | - | |
| 1110 | - /** | |
| 1111 | - * Parse commandline arguments into a hash array | |
| 1112 | - * | |
| 1113 | - * @param array $aliases Argument alias names | |
| 1114 | - * | |
| 1115 | - * @return array Argument values hash | |
| 1116 | - */ | |
| 1117 | - public static function get_opt($aliases = []) | |
| 1118 | - { | |
| 1119 | - $args = []; | |
| 1120 | - $bool = []; | |
| 1121 | - | |
| 1122 | - // find boolean (no value) options | |
| 1123 | - foreach ($aliases as $key => $alias) { | |
| 1124 | - if ($pos = strpos($alias, ':')) { | |
| 1125 | - $aliases[$key] = substr($alias, 0, $pos); | |
| 1126 | - $bool[] = $key; | |
| 1127 | - $bool[] = $aliases[$key]; | |
| 1128 | - } | |
| 1129 | - } | |
| 1130 | - | |
| 1131 | - for ($i = 1 ; $i < count($_SERVER['argv']) ; $i++) { | |
| 1132 | - $arg = $_SERVER['argv'][$i]; | |
| 1133 | - $value = true; | |
| 1134 | - $key = null; | |
| 1135 | - | |
| 1136 | - if ($arg[0] == '-') { | |
| 1137 | - $key = preg_replace('/^-+/', '', $arg); | |
| 1138 | - $sp = strpos($arg, '='); | |
| 1139 | - | |
| 1140 | - if ($sp > 0) { | |
| 1141 | - $key = substr($key, 0, $sp - 2); | |
| 1142 | - $value = substr($arg, $sp + 1); | |
| 1143 | - } elseif (in_array($key, $bool)) { | |
| 1144 | - $value = true; | |
| 1145 | - } elseif (strlen($_SERVER['argv'][$i + 1]) && $_SERVER['argv'][$i + 1][0] != '-') { | |
| 1146 | - $value = $_SERVER['argv'][++$i]; | |
| 1147 | - } | |
| 1148 | - | |
| 1149 | - $args[$key] = is_string($value) ? preg_replace(['/^["\']/', '/["\']$/'], '', $value) : $value; | |
| 1150 | - } else { | |
| 1151 | - $args[] = $arg; | |
| 1152 | - } | |
| 1153 | - | |
| 1154 | - if ($alias = $aliases[$key]) { | |
| 1155 | - $args[$alias] = $args[$key]; | |
| 1156 | - } | |
| 1157 | - } | |
| 1158 | - | |
| 1159 | - return $args; | |
| 1160 | - } | |
| 1161 | - | |
| 1162 | - /** | |
| 1163 | - * Safe password prompt for command line | |
| 1164 | - * from http://blogs.sitepoint.com/2009/05/01/interactive-cli-password-prompt-in-php/ | |
| 1165 | - * | |
| 1166 | - * @param string $prompt Prompt text | |
| 1167 | - * | |
| 1168 | - * @return string Password | |
| 1169 | - */ | |
| 1170 | - public static function prompt_silent($prompt = "Password:") | |
| 1171 | - { | |
| 1172 | - if (preg_match('/^win/i', PHP_OS)) { | |
| 1173 | - $vbscript = sys_get_temp_dir().'prompt_password.vbs'; | |
| 1174 | - $vbcontent = 'wscript.echo(InputBox("'.addslashes($prompt).'", "", "password here"))'; | |
| 1175 | - #file_put_contents($vbscript, $vbcontent); | |
| 1176 | - | |
| 1177 | - $command = "cscript //nologo ".escapeshellarg($vbscript); | |
| 1178 | - $password = rtrim(shell_exec($command)); | |
| 1179 | - unlink($vbscript); | |
| 1180 | - | |
| 1181 | - return $password; | |
| 1182 | - } | |
| 1183 | - | |
| 1184 | - $command = "/usr/bin/env bash -c 'echo OK'"; | |
| 1185 | - | |
| 1186 | - if (rtrim(shell_exec($command)) !== 'OK') { | |
| 1187 | - echo $prompt; | |
| 1188 | - $pass = trim(fgets(STDIN)); | |
| 1189 | - echo chr(8)."\r".$prompt.str_repeat("*", strlen($pass))."\n"; | |
| 1190 | - | |
| 1191 | - return $pass; | |
| 1192 | - } | |
| 1193 | - | |
| 1194 | - $command = "/usr/bin/env bash -c 'read -s -p \"".addslashes($prompt)."\" mypassword && echo \$mypassword'"; | |
| 1195 | - $password = rtrim(shell_exec($command)); | |
| 1196 | - echo "\n"; | |
| 1197 | - | |
| 1198 | - return $password; | |
| 1199 | - } | |
| 1200 | - | |
| 1201 | - /** | |
| 1202 | - * Find out if the string content means true or false | |
| 1203 | - * | |
| 1204 | - * @param string $str Input value | |
| 1205 | - * | |
| 1206 | - * @return bool Boolean value | |
| 1207 | - */ | |
| 1208 | - public static function get_boolean($str) | |
| 1209 | - { | |
| 1210 | - $str = strtolower($str); | |
| 1211 | - | |
| 1212 | - return !in_array($str, ['false', '0', 'no', 'off', 'nein', ''], true); | |
| 1213 | - } | |
| 1214 | - | |
| 1215 | - /** | |
| 1216 | - * OS-dependent absolute path detection | |
| 1217 | - * | |
| 1218 | - * @param string $path File path | |
| 1219 | - * | |
| 1220 | - * @return bool True if the path is absolute, False otherwise | |
| 1221 | - */ | |
| 1222 | - public static function is_absolute_path($path) | |
| 1223 | - { | |
| 1224 | - if (strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') { | |
| 1225 | - return (bool)preg_match('!^[a-z]:[\\\\/]!i', $path); | |
| 1226 | - } | |
| 1227 | - | |
| 1228 | - return $path[0] == '/'; | |
| 1229 | - } | |
| 1230 | - | |
| 1231 | - /** | |
| 1232 | - * Resolve relative URL | |
| 1233 | - * | |
| 1234 | - * @param string $url Relative URL | |
| 1235 | - * | |
| 1236 | - * @return string Absolute URL | |
| 1237 | - */ | |
| 1238 | - public static function resolve_url($url) | |
| 1239 | - { | |
| 1240 | - // prepend protocol://hostname:port | |
| 1241 | - if (!preg_match('|^https?://|', $url)) { | |
| 1242 | - $schema = 'http'; | |
| 1243 | - $default_port = 80; | |
| 1244 | - | |
| 1245 | - if (self::https_check()) { | |
| 1246 | - $schema = 'https'; | |
| 1247 | - $default_port = 443; | |
| 1248 | - } | |
| 1249 | - | |
| 1250 | - $prefix = $schema.'://'.preg_replace('/:\d+$/', '', $_SERVER['HTTP_HOST']); | |
| 1251 | - if ($_SERVER['SERVER_PORT'] != $default_port && $_SERVER['SERVER_PORT'] != 80) { | |
| 1252 | - $prefix .= ':'.$_SERVER['SERVER_PORT']; | |
| 1253 | - } | |
| 1254 | - | |
| 1255 | - $url = $prefix.($url[0] == '/' ? '' : '/').$url; | |
| 1256 | - } | |
| 1257 | - | |
| 1258 | - return $url; | |
| 1259 | - } | |
| 1260 | - | |
| 1261 | - /** | |
| 1262 | - * Generate a random string | |
| 1263 | - * | |
| 1264 | - * @param int $length String length | |
| 1265 | - * @param bool $raw Return RAW data instead of ascii | |
| 1266 | - * | |
| 1267 | - * @return string The generated random string | |
| 1268 | - */ | |
| 1269 | - public static function random_bytes($length, $raw = false) | |
| 1270 | - { | |
| 1271 | - $hextab = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
| 1272 | - $tabsize = strlen($hextab); | |
| 1273 | - | |
| 1274 | - // Use PHP7 true random generator | |
| 1275 | - if ($raw && function_exists('random_bytes')) { | |
| 1276 | - return random_bytes($length); | |
| 1277 | - } | |
| 1278 | - | |
| 1279 | - if (!$raw && function_exists('random_int')) { | |
| 1280 | - $result = ''; | |
| 1281 | - while ($length-- > 0) { | |
| 1282 | - $result .= $hextab[random_int(0, $tabsize - 1)]; | |
| 1283 | - } | |
| 1284 | - | |
| 1285 | - return $result; | |
| 1286 | - } | |
| 1287 | - | |
| 1288 | - $random = openssl_random_pseudo_bytes($length); | |
| 1289 | - | |
| 1290 | - if ($random === false && $length > 0) { | |
| 1291 | - throw new Exception("Failed to get random bytes"); | |
| 1292 | - } | |
| 1293 | - | |
| 1294 | - if (!$raw) { | |
| 1295 | - for ($x = 0 ; $x < $length ; $x++) { | |
| 1296 | - $random[$x] = $hextab[ord($random[$x]) % $tabsize]; | |
| 1297 | - } | |
| 1298 | - } | |
| 1299 | - | |
| 1300 | - return $random; | |
| 1301 | - } | |
| 1302 | - | |
| 1303 | - /** | |
| 1304 | - * Convert binary data into readable form (containing a-zA-Z0-9 characters) | |
| 1305 | - * | |
| 1306 | - * @param string $input Binary input | |
| 1307 | - * | |
| 1308 | - * @return string Readable output (Base62) | |
| 1309 | - * @deprecated since 1.3.1 | |
| 1310 | - */ | |
| 1311 | - public static function bin2ascii($input) | |
| 1312 | - { | |
| 1313 | - $hextab = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
| 1314 | - $result = ''; | |
| 1315 | - | |
| 1316 | - for ($x = 0 ; $x < strlen($input) ; $x++) { | |
| 1317 | - $result .= $hextab[ord($input[$x]) % 62]; | |
| 1318 | - } | |
| 1319 | - | |
| 1320 | - return $result; | |
| 1321 | - } | |
| 1322 | - | |
| 1323 | - /** | |
| 1324 | - * Format current date according to specified format. | |
| 1325 | - * This method supports microseconds (u). | |
| 1326 | - * | |
| 1327 | - * @param string $format Date format (default: 'd-M-Y H:i:s O') | |
| 1328 | - * | |
| 1329 | - * @return string Formatted date | |
| 1330 | - */ | |
| 1331 | - public static function date_format($format = null) | |
| 1332 | - { | |
| 1333 | - if (empty($format)) { | |
| 1334 | - $format = 'd-M-Y H:i:s O'; | |
| 1335 | - } | |
| 1336 | - | |
| 1337 | - if (strpos($format, 'u') !== false) { | |
| 1338 | - $dt = number_format(microtime(true), 6, '.', ''); | |
| 1339 | - $dt .= '.'.date_default_timezone_get(); | |
| 1340 | - | |
| 1341 | - if ($date = date_create_from_format('U.u.e', $dt)) { | |
| 1342 | - return $date->format($format); | |
| 1343 | - } | |
| 1344 | - } | |
| 1345 | - | |
| 1346 | - return date($format); | |
| 1347 | - } | |
| 1348 | - | |
| 1349 | - /** | |
| 1350 | - * Parses socket options and returns options for specified hostname. | |
| 1351 | - * | |
| 1352 | - * @param array &$options Configured socket options | |
| 1353 | - * @param string $host Hostname | |
| 1354 | - */ | |
| 1355 | - public static function parse_socket_options(&$options, $host = null) | |
| 1356 | - { | |
| 1357 | - if (empty($host) || empty($options)) { | |
| 1358 | - return; | |
| 1359 | - } | |
| 1360 | - | |
| 1361 | - // get rid of schema and port from the hostname | |
| 1362 | - $host_url = parse_url($host); | |
| 1363 | - if (isset($host_url['host'])) { | |
| 1364 | - $host = $host_url['host']; | |
| 1365 | - } | |
| 1366 | - | |
| 1367 | - // find per-host options | |
| 1368 | - if ($host && array_key_exists($host, $options)) { | |
| 1369 | - $options = $options[$host]; | |
| 1370 | - } | |
| 1371 | - } | |
| 1372 | - | |
| 1373 | - /** | |
| 1374 | - * Get maximum upload size | |
| 1375 | - * | |
| 1376 | - * @return int Maximum size in bytes | |
| 1377 | - */ | |
| 1378 | - public static function max_upload_size() | |
| 1379 | - { | |
| 1380 | - // find max filesize value | |
| 1381 | - $max_filesize = parse_bytes(ini_get('upload_max_filesize')); | |
| 1382 | - $max_postsize = parse_bytes(ini_get('post_max_size')); | |
| 1383 | - | |
| 1384 | - if ($max_postsize && $max_postsize < $max_filesize) { | |
| 1385 | - $max_filesize = $max_postsize; | |
| 1386 | - } | |
| 1387 | - | |
| 1388 | - return $max_filesize; | |
| 1389 | - } | |
| 1390 | - | |
| 1391 | - /** | |
| 1392 | - * Detect and log last PREG operation error | |
| 1393 | - * | |
| 1394 | - * @param array $error Error data (line, file, code, message) | |
| 1395 | - * @param bool $terminate Stop script execution | |
| 1396 | - * | |
| 1397 | - * @return bool True on error, False otherwise | |
| 1398 | - */ | |
| 1399 | - public static function preg_error($error = [], $terminate = false) | |
| 1400 | - { | |
| 1401 | - if (($preg_error = preg_last_error()) != PREG_NO_ERROR) { | |
| 1402 | - $errstr = "PCRE Error: $preg_error."; | |
| 1403 | - | |
| 1404 | - if ($preg_error == PREG_BACKTRACK_LIMIT_ERROR) { | |
| 1405 | - $errstr .= " Consider raising pcre.backtrack_limit!"; | |
| 1406 | - } | |
| 1407 | - if ($preg_error == PREG_RECURSION_LIMIT_ERROR) { | |
| 1408 | - $errstr .= " Consider raising pcre.recursion_limit!"; | |
| 1409 | - } | |
| 1410 | - | |
| 1411 | - $error = array_merge(['code' => 620, 'line' => __LINE__, 'file' => __FILE__], $error); | |
| 1412 | - | |
| 1413 | - if (!empty($error['message'])) { | |
| 1414 | - $error['message'] .= ' '.$errstr; | |
| 1415 | - } else { | |
| 1416 | - $error['message'] = $errstr; | |
| 1417 | - } | |
| 1418 | - | |
| 1419 | - rcube::raise_error($error, true, $terminate); | |
| 1420 | - | |
| 1421 | - return true; | |
| 1422 | - } | |
| 1423 | - | |
| 1424 | - return false; | |
| 1425 | - } | |
| 1426 | - | |
| 1427 | - /** | |
| 1428 | - * Generate a temporary file path in the Roundcube temp directory | |
| 1429 | - * | |
| 1430 | - * @param string $file_name String identifier for the type of temp file | |
| 1431 | - * @param bool $unique Generate unique file names based on $file_name | |
| 1432 | - * @param bool $create Create the temp file or not | |
| 1433 | - * | |
| 1434 | - * @return string temporary file path | |
| 1435 | - */ | |
| 1436 | - public static function temp_filename($file_name, $unique = true, $create = true) | |
| 1437 | - { | |
| 1438 | - $temp_dir = rcube::get_instance()->config->get('temp_dir'); | |
| 1439 | - | |
| 1440 | - // Fall back to system temp dir if configured dir is not writable | |
| 1441 | - if (!is_writable($temp_dir)) { | |
| 1442 | - $temp_dir = sys_get_temp_dir(); | |
| 1443 | - } | |
| 1444 | - | |
| 1445 | - // On Windows tempnam() uses only the first three characters of prefix so use uniqid() and manually add the prefix | |
| 1446 | - // Full prefix is required for garbage collection to recognise the file | |
| 1447 | - $temp_file = $unique ? str_replace('.', '', uniqid($file_name, true)) : $file_name; | |
| 1448 | - $temp_path = unslashify($temp_dir).'/'.RCUBE_TEMP_FILE_PREFIX.$temp_file; | |
| 1449 | - | |
| 1450 | - // Sanity check for unique file name | |
| 1451 | - if ($unique && file_exists($temp_path)) { | |
| 1452 | - return self::temp_filename($file_name, $unique, $create); | |
| 1453 | - } | |
| 1454 | - | |
| 1455 | - // Create the file to prevent possible race condition like tempnam() does | |
| 1456 | - if ($create) { | |
| 1457 | - touch($temp_path); | |
| 1458 | - } | |
| 1459 | - | |
| 1460 | - return $temp_path; | |
| 1461 | - } | |
| 1462 | -} | |
