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1 <?php 2 /** 3 * kses 0.2.2 - HTML/XHTML filter that only allows some elements and attributes 4 * Copyright (C) 2002, 2003, 2005 Ulf Harnhammar 5 * 6 * This program is free software and open source software; you can redistribute 7 * it and/or modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of the License, 9 * or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14 * more details. 15 * 16 * You should have received a copy of the GNU General Public License along 17 * with this program; if not, write to the Free Software Foundation, Inc., 18 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 * http://www.gnu.org/licenses/gpl.html 20 * 21 * [kses strips evil scripts!] 22 * 23 * Added wp_ prefix to avoid conflicts with existing kses users 24 * 25 * @version 0.2.2 26 * @copyright (C) 2002, 2003, 2005 27 * @author Ulf Harnhammar <http://advogato.org/person/metaur/> 28 * 29 * @package External 30 * @subpackage KSES 31 * 32 */ 33 34 /** 35 * You can override this in a plugin. 36 * 37 * @since 1.2.0 38 */ 39 if ( ! defined( 'CUSTOM_TAGS' ) ) 40 define( 'CUSTOM_TAGS', false ); 41 42 if ( ! CUSTOM_TAGS ) { 43 /** 44 * Kses global for default allowable HTML tags. 45 * 46 * Can be override by using CUSTOM_TAGS constant. 47 * 48 * @global array $allowedposttags 49 * @since 2.0.0 50 */ 51 $allowedposttags = array( 52 'address' => array(), 53 'a' => array( 54 'class' => array (), 55 'href' => array (), 56 'id' => array (), 57 'title' => array (), 58 'rel' => array (), 59 'rev' => array (), 60 'name' => array (), 61 'target' => array()), 62 'abbr' => array( 63 'class' => array (), 64 'title' => array ()), 65 'acronym' => array( 66 'title' => array ()), 67 'article' => array( 68 'align' => array (), 69 'class' => array (), 70 'dir' => array (), 71 'lang' => array(), 72 'style' => array (), 73 'xml:lang' => array(), 74 ), 75 'aside' => array( 76 'align' => array (), 77 'class' => array (), 78 'dir' => array (), 79 'lang' => array(), 80 'style' => array (), 81 'xml:lang' => array(), 82 ), 83 'b' => array(), 84 'big' => array(), 85 'blockquote' => array( 86 'id' => array (), 87 'cite' => array (), 88 'class' => array(), 89 'lang' => array(), 90 'xml:lang' => array()), 91 'br' => array ( 92 'class' => array ()), 93 'button' => array( 94 'disabled' => array (), 95 'name' => array (), 96 'type' => array (), 97 'value' => array ()), 98 'caption' => array( 99 'align' => array (), 100 'class' => array ()), 101 'cite' => array ( 102 'class' => array(), 103 'dir' => array(), 104 'lang' => array(), 105 'title' => array ()), 106 'code' => array ( 107 'style' => array()), 108 'col' => array( 109 'align' => array (), 110 'char' => array (), 111 'charoff' => array (), 112 'span' => array (), 113 'dir' => array(), 114 'style' => array (), 115 'valign' => array (), 116 'width' => array ()), 117 'del' => array( 118 'datetime' => array ()), 119 'dd' => array(), 120 'details' => array( 121 'align' => array (), 122 'class' => array (), 123 'dir' => array (), 124 'lang' => array(), 125 'open' => array (), 126 'style' => array (), 127 'xml:lang' => array(), 128 ), 129 'div' => array( 130 'align' => array (), 131 'class' => array (), 132 'dir' => array (), 133 'lang' => array(), 134 'style' => array (), 135 'xml:lang' => array()), 136 'dl' => array(), 137 'dt' => array(), 138 'em' => array(), 139 'fieldset' => array(), 140 'figure' => array( 141 'align' => array (), 142 'class' => array (), 143 'dir' => array (), 144 'lang' => array(), 145 'style' => array (), 146 'xml:lang' => array(), 147 ), 148 'figcaption' => array( 149 'align' => array (), 150 'class' => array (), 151 'dir' => array (), 152 'lang' => array(), 153 'style' => array (), 154 'xml:lang' => array(), 155 ), 156 'font' => array( 157 'color' => array (), 158 'face' => array (), 159 'size' => array ()), 160 'footer' => array( 161 'align' => array (), 162 'class' => array (), 163 'dir' => array (), 164 'lang' => array(), 165 'style' => array (), 166 'xml:lang' => array(), 167 ), 168 'form' => array( 169 'action' => array (), 170 'accept' => array (), 171 'accept-charset' => array (), 172 'enctype' => array (), 173 'method' => array (), 174 'name' => array (), 175 'target' => array ()), 176 'h1' => array( 177 'align' => array (), 178 'class' => array (), 179 'id' => array (), 180 'style' => array ()), 181 'h2' => array ( 182 'align' => array (), 183 'class' => array (), 184 'id' => array (), 185 'style' => array ()), 186 'h3' => array ( 187 'align' => array (), 188 'class' => array (), 189 'id' => array (), 190 'style' => array ()), 191 'h4' => array ( 192 'align' => array (), 193 'class' => array (), 194 'id' => array (), 195 'style' => array ()), 196 'h5' => array ( 197 'align' => array (), 198 'class' => array (), 199 'id' => array (), 200 'style' => array ()), 201 'h6' => array ( 202 'align' => array (), 203 'class' => array (), 204 'id' => array (), 205 'style' => array ()), 206 'header' => array( 207 'align' => array (), 208 'class' => array (), 209 'dir' => array (), 210 'lang' => array(), 211 'style' => array (), 212 'xml:lang' => array(), 213 ), 214 'hgroup' => array( 215 'align' => array (), 216 'class' => array (), 217 'dir' => array (), 218 'lang' => array(), 219 'style' => array (), 220 'xml:lang' => array(), 221 ), 222 'hr' => array ( 223 'align' => array (), 224 'class' => array (), 225 'noshade' => array (), 226 'size' => array (), 227 'width' => array ()), 228 'i' => array(), 229 'img' => array( 230 'alt' => array (), 231 'align' => array (), 232 'border' => array (), 233 'class' => array (), 234 'height' => array (), 235 'hspace' => array (), 236 'longdesc' => array (), 237 'vspace' => array (), 238 'src' => array (), 239 'style' => array (), 240 'width' => array ()), 241 'ins' => array( 242 'datetime' => array (), 243 'cite' => array ()), 244 'kbd' => array(), 245 'label' => array( 246 'for' => array ()), 247 'legend' => array( 248 'align' => array ()), 249 'li' => array ( 250 'align' => array (), 251 'class' => array ()), 252 'menu' => array ( 253 'class' => array (), 254 'style' => array (), 255 'type' => array ()), 256 'nav' => array( 257 'align' => array (), 258 'class' => array (), 259 'dir' => array (), 260 'lang' => array(), 261 'style' => array (), 262 'xml:lang' => array(), 263 ), 264 'p' => array( 265 'class' => array (), 266 'align' => array (), 267 'dir' => array(), 268 'lang' => array(), 269 'style' => array (), 270 'xml:lang' => array()), 271 'pre' => array( 272 'style' => array(), 273 'width' => array ()), 274 'q' => array( 275 'cite' => array ()), 276 's' => array(), 277 'span' => array ( 278 'class' => array (), 279 'dir' => array (), 280 'align' => array (), 281 'lang' => array (), 282 'style' => array (), 283 'title' => array (), 284 'xml:lang' => array()), 285 'section' => array( 286 'align' => array (), 287 'class' => array (), 288 'dir' => array (), 289 'lang' => array(), 290 'style' => array (), 291 'xml:lang' => array(), 292 ), 293 'strike' => array(), 294 'strong' => array(), 295 'sub' => array(), 296 'summary' => array( 297 'align' => array (), 298 'class' => array (), 299 'dir' => array (), 300 'lang' => array(), 301 'style' => array (), 302 'xml:lang' => array(), 303 ), 304 'sup' => array(), 305 'table' => array( 306 'align' => array (), 307 'bgcolor' => array (), 308 'border' => array (), 309 'cellpadding' => array (), 310 'cellspacing' => array (), 311 'class' => array (), 312 'dir' => array(), 313 'id' => array(), 314 'rules' => array (), 315 'style' => array (), 316 'summary' => array (), 317 'width' => array ()), 318 'tbody' => array( 319 'align' => array (), 320 'char' => array (), 321 'charoff' => array (), 322 'valign' => array ()), 323 'td' => array( 324 'abbr' => array (), 325 'align' => array (), 326 'axis' => array (), 327 'bgcolor' => array (), 328 'char' => array (), 329 'charoff' => array (), 330 'class' => array (), 331 'colspan' => array (), 332 'dir' => array(), 333 'headers' => array (), 334 'height' => array (), 335 'nowrap' => array (), 336 'rowspan' => array (), 337 'scope' => array (), 338 'style' => array (), 339 'valign' => array (), 340 'width' => array ()), 341 'textarea' => array( 342 'cols' => array (), 343 'rows' => array (), 344 'disabled' => array (), 345 'name' => array (), 346 'readonly' => array ()), 347 'tfoot' => array( 348 'align' => array (), 349 'char' => array (), 350 'class' => array (), 351 'charoff' => array (), 352 'valign' => array ()), 353 'th' => array( 354 'abbr' => array (), 355 'align' => array (), 356 'axis' => array (), 357 'bgcolor' => array (), 358 'char' => array (), 359 'charoff' => array (), 360 'class' => array (), 361 'colspan' => array (), 362 'headers' => array (), 363 'height' => array (), 364 'nowrap' => array (), 365 'rowspan' => array (), 366 'scope' => array (), 367 'valign' => array (), 368 'width' => array ()), 369 'thead' => array( 370 'align' => array (), 371 'char' => array (), 372 'charoff' => array (), 373 'class' => array (), 374 'valign' => array ()), 375 'title' => array(), 376 'tr' => array( 377 'align' => array (), 378 'bgcolor' => array (), 379 'char' => array (), 380 'charoff' => array (), 381 'class' => array (), 382 'style' => array (), 383 'valign' => array ()), 384 'tt' => array(), 385 'u' => array(), 386 'ul' => array ( 387 'class' => array (), 388 'style' => array (), 389 'type' => array ()), 390 'ol' => array ( 391 'class' => array (), 392 'start' => array (), 393 'style' => array (), 394 'type' => array ()), 395 'var' => array ()); 396 397 /** 398 * Kses allowed HTML elements. 399 * 400 * @global array $allowedtags 401 * @since 1.0.0 402 */ 403 $allowedtags = array( 404 'a' => array( 405 'href' => array (), 406 'title' => array ()), 407 'abbr' => array( 408 'title' => array ()), 409 'acronym' => array( 410 'title' => array ()), 411 'b' => array(), 412 'blockquote' => array( 413 'cite' => array ()), 414 // 'br' => array(), 415 'cite' => array (), 416 'code' => array(), 417 'del' => array( 418 'datetime' => array ()), 419 // 'dd' => array(), 420 // 'dl' => array(), 421 // 'dt' => array(), 422 'em' => array (), 'i' => array (), 423 // 'ins' => array('datetime' => array(), 'cite' => array()), 424 // 'li' => array(), 425 // 'ol' => array(), 426 // 'p' => array(), 427 'q' => array( 428 'cite' => array ()), 429 'strike' => array(), 430 'strong' => array(), 431 // 'sub' => array(), 432 // 'sup' => array(), 433 // 'u' => array(), 434 // 'ul' => array(), 435 ); 436 437 $allowedentitynames = array( 438 'nbsp', 'iexcl', 'cent', 'pound', 'curren', 'yen', 439 'brvbar', 'sect', 'uml', 'copy', 'ordf', 'laquo', 440 'not', 'shy', 'reg', 'macr', 'deg', 'plusmn', 441 'acute', 'micro', 'para', 'middot', 'cedil', 'ordm', 442 'raquo', 'iquest', 'Agrave', 'Aacute', 'Acirc', 'Atilde', 443 'Auml', 'Aring', 'AElig', 'Ccedil', 'Egrave', 'Eacute', 444 'Ecirc', 'Euml', 'Igrave', 'Iacute', 'Icirc', 'Iuml', 445 'ETH', 'Ntilde', 'Ograve', 'Oacute', 'Ocirc', 'Otilde', 446 'Ouml', 'times', 'Oslash', 'Ugrave', 'Uacute', 'Ucirc', 447 'Uuml', 'Yacute', 'THORN', 'szlig', 'agrave', 'aacute', 448 'acirc', 'atilde', 'auml', 'aring', 'aelig', 'ccedil', 449 'egrave', 'eacute', 'ecirc', 'euml', 'igrave', 'iacute', 450 'icirc', 'iuml', 'eth', 'ntilde', 'ograve', 'oacute', 451 'ocirc', 'otilde', 'ouml', 'divide', 'oslash', 'ugrave', 452 'uacute', 'ucirc', 'uuml', 'yacute', 'thorn', 'yuml', 453 'quot', 'amp', 'lt', 'gt', 'apos', 'OElig', 454 'oelig', 'Scaron', 'scaron', 'Yuml', 'circ', 'tilde', 455 'ensp', 'emsp', 'thinsp', 'zwnj', 'zwj', 'lrm', 456 'rlm', 'ndash', 'mdash', 'lsquo', 'rsquo', 'sbquo', 457 'ldquo', 'rdquo', 'bdquo', 'dagger', 'Dagger', 'permil', 458 'lsaquo', 'rsaquo', 'euro', 'fnof', 'Alpha', 'Beta', 459 'Gamma', 'Delta', 'Epsilon', 'Zeta', 'Eta', 'Theta', 460 'Iota', 'Kappa', 'Lambda', 'Mu', 'Nu', 'Xi', 461 'Omicron', 'Pi', 'Rho', 'Sigma', 'Tau', 'Upsilon', 462 'Phi', 'Chi', 'Psi', 'Omega', 'alpha', 'beta', 463 'gamma', 'delta', 'epsilon', 'zeta', 'eta', 'theta', 464 'iota', 'kappa', 'lambda', 'mu', 'nu', 'xi', 465 'omicron', 'pi', 'rho', 'sigmaf', 'sigma', 'tau', 466 'upsilon', 'phi', 'chi', 'psi', 'omega', 'thetasym', 467 'upsih', 'piv', 'bull', 'hellip', 'prime', 'Prime', 468 'oline', 'frasl', 'weierp', 'image', 'real', 'trade', 469 'alefsym', 'larr', 'uarr', 'rarr', 'darr', 'harr', 470 'crarr', 'lArr', 'uArr', 'rArr', 'dArr', 'hArr', 471 'forall', 'part', 'exist', 'empty', 'nabla', 'isin', 472 'notin', 'ni', 'prod', 'sum', 'minus', 'lowast', 473 'radic', 'prop', 'infin', 'ang', 'and', 'or', 474 'cap', 'cup', 'int', 'sim', 'cong', 'asymp', 475 'ne', 'equiv', 'le', 'ge', 'sub', 'sup', 476 'nsub', 'sube', 'supe', 'oplus', 'otimes', 'perp', 477 'sdot', 'lceil', 'rceil', 'lfloor', 'rfloor', 'lang', 478 'rang', 'loz', 'spades', 'clubs', 'hearts', 'diams', 479 ); 480 } 481 482 /** 483 * Filters content and keeps only allowable HTML elements. 484 * 485 * This function makes sure that only the allowed HTML element names, attribute 486 * names and attribute values plus only sane HTML entities will occur in 487 * $string. You have to remove any slashes from PHP's magic quotes before you 488 * call this function. 489 * 490 * The default allowed protocols are 'http', 'https', 'ftp', 'mailto', 'news', 491 * 'irc', 'gopher', 'nntp', 'feed', 'telnet, 'mms', 'rtsp' and 'svn'. This 492 * covers all common link protocols, except for 'javascript' which should not 493 * be allowed for untrusted users. 494 * 495 * @since 1.0.0 496 * 497 * @param string $string Content to filter through kses 498 * @param array $allowed_html List of allowed HTML elements 499 * @param array $allowed_protocols Optional. Allowed protocol in links. 500 * @return string Filtered content with only allowed HTML elements 501 */ 502 function wp_kses($string, $allowed_html, $allowed_protocols = array ()) { 503 $allowed_protocols = wp_parse_args( $allowed_protocols, apply_filters('kses_allowed_protocols', array ('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn') )); 504 $string = wp_kses_no_null($string); 505 $string = wp_kses_js_entities($string); 506 $string = wp_kses_normalize_entities($string); 507 $allowed_html_fixed = wp_kses_array_lc($allowed_html); 508 $string = wp_kses_hook($string, $allowed_html_fixed, $allowed_protocols); // WP changed the order of these funcs and added args to wp_kses_hook 509 return wp_kses_split($string, $allowed_html_fixed, $allowed_protocols); 510 } 511 512 /** 513 * You add any kses hooks here. 514 * 515 * There is currently only one kses WordPress hook and it is called here. All 516 * parameters are passed to the hooks and expected to recieve a string. 517 * 518 * @since 1.0.0 519 * 520 * @param string $string Content to filter through kses 521 * @param array $allowed_html List of allowed HTML elements 522 * @param array $allowed_protocols Allowed protocol in links 523 * @return string Filtered content through 'pre_kses' hook 524 */ 525 function wp_kses_hook($string, $allowed_html, $allowed_protocols) { 526 $string = apply_filters('pre_kses', $string, $allowed_html, $allowed_protocols); 527 return $string; 528 } 529 530 /** 531 * This function returns kses' version number. 532 * 533 * @since 1.0.0 534 * 535 * @return string KSES Version Number 536 */ 537 function wp_kses_version() { 538 return '0.2.2'; 539 } 540 541 /** 542 * Searches for HTML tags, no matter how malformed. 543 * 544 * It also matches stray ">" characters. 545 * 546 * @since 1.0.0 547 * 548 * @param string $string Content to filter 549 * @param array $allowed_html Allowed HTML elements 550 * @param array $allowed_protocols Allowed protocols to keep 551 * @return string Content with fixed HTML tags 552 */ 553 function wp_kses_split($string, $allowed_html, $allowed_protocols) { 554 global $pass_allowed_html, $pass_allowed_protocols; 555 $pass_allowed_html = $allowed_html; 556 $pass_allowed_protocols = $allowed_protocols; 557 return preg_replace_callback( '%(<!--.*?(-->|$))|(<[^>]*(>|$)|>)%', '_wp_kses_split_callback', $string ); 558 } 559 560 /** 561 * Callback for wp_kses_split. 562 * 563 * @since 3.1.0 564 * @access private 565 */ 566 function _wp_kses_split_callback( $match ) { 567 global $pass_allowed_html, $pass_allowed_protocols; 568 return wp_kses_split2( $match[0], $pass_allowed_html, $pass_allowed_protocols ); 569 } 570 571 /** 572 * Callback for wp_kses_split for fixing malformed HTML tags. 573 * 574 * This function does a lot of work. It rejects some very malformed things like 575 * <:::>. It returns an empty string, if the element isn't allowed (look ma, no 576 * strip_tags()!). Otherwise it splits the tag into an element and an attribute 577 * list. 578 * 579 * After the tag is split into an element and an attribute list, it is run 580 * through another filter which will remove illegal attributes and once that is 581 * completed, will be returned. 582 * 583 * @access private 584 * @since 1.0.0 585 * @uses wp_kses_attr() 586 * 587 * @param string $string Content to filter 588 * @param array $allowed_html Allowed HTML elements 589 * @param array $allowed_protocols Allowed protocols to keep 590 * @return string Fixed HTML element 591 */ 592 function wp_kses_split2($string, $allowed_html, $allowed_protocols) { 593 $string = wp_kses_stripslashes($string); 594 595 if (substr($string, 0, 1) != '<') 596 return '>'; 597 # It matched a ">" character 598 599 if ( '<!--' == substr( $string, 0, 4 ) ) { 600 $string = str_replace( array('<!--', '-->'), '', $string ); 601 while ( $string != ($newstring = wp_kses($string, $allowed_html, $allowed_protocols)) ) 602 $string = $newstring; 603 if ( $string == '' ) 604 return ''; 605 // prevent multiple dashes in comments 606 $string = preg_replace('/--+/', '-', $string); 607 // prevent three dashes closing a comment 608 $string = preg_replace('/-$/', '', $string); 609 return "<!--{$string}-->"; 610 } 611 # Allow HTML comments 612 613 if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $string, $matches)) 614 return ''; 615 # It's seriously malformed 616 617 $slash = trim($matches[1]); 618 $elem = $matches[2]; 619 $attrlist = $matches[3]; 620 621 if ( ! isset($allowed_html[strtolower($elem)]) ) 622 return ''; 623 # They are using a not allowed HTML element 624 625 if ($slash != '') 626 return "</$elem>"; 627 # No attributes are allowed for closing elements 628 629 return wp_kses_attr( $elem, $attrlist, $allowed_html, $allowed_protocols ); 630 } 631 632 /** 633 * Removes all attributes, if none are allowed for this element. 634 * 635 * If some are allowed it calls wp_kses_hair() to split them further, and then 636 * it builds up new HTML code from the data that kses_hair() returns. It also 637 * removes "<" and ">" characters, if there are any left. One more thing it does 638 * is to check if the tag has a closing XHTML slash, and if it does, it puts one 639 * in the returned code as well. 640 * 641 * @since 1.0.0 642 * 643 * @param string $element HTML element/tag 644 * @param string $attr HTML attributes from HTML element to closing HTML element tag 645 * @param array $allowed_html Allowed HTML elements 646 * @param array $allowed_protocols Allowed protocols to keep 647 * @return string Sanitized HTML element 648 */ 649 function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) { 650 # Is there a closing XHTML slash at the end of the attributes? 651 652 $xhtml_slash = ''; 653 if (preg_match('%\s*/\s*$%', $attr)) 654 $xhtml_slash = ' /'; 655 656 # Are any attributes allowed at all for this element? 657 if ( ! isset($allowed_html[strtolower($element)]) || count($allowed_html[strtolower($element)]) == 0 ) 658 return "<$element$xhtml_slash>"; 659 660 # Split it 661 $attrarr = wp_kses_hair($attr, $allowed_protocols); 662 663 # Go through $attrarr, and save the allowed attributes for this element 664 # in $attr2 665 $attr2 = ''; 666 667 $allowed_attr = $allowed_html[strtolower($element)]; 668 foreach ($attrarr as $arreach) { 669 if ( ! isset( $allowed_attr[strtolower($arreach['name'])] ) ) 670 continue; # the attribute is not allowed 671 672 $current = $allowed_attr[strtolower($arreach['name'])]; 673 if ( $current == '' ) 674 continue; # the attribute is not allowed 675 676 if ( ! is_array($current) ) { 677 $attr2 .= ' '.$arreach['whole']; 678 # there are no checks 679 680 } else { 681 # there are some checks 682 $ok = true; 683 foreach ($current as $currkey => $currval) { 684 if ( ! wp_kses_check_attr_val($arreach['value'], $arreach['vless'], $currkey, $currval) ) { 685 $ok = false; 686 break; 687 } 688 } 689 690 if ( strtolower($arreach['name']) == 'style' ) { 691 $orig_value = $arreach['value']; 692 $value = safecss_filter_attr($orig_value); 693 694 if ( empty($value) ) 695 continue; 696 697 $arreach['value'] = $value; 698 $arreach['whole'] = str_replace($orig_value, $value, $arreach['whole']); 699 } 700 701 if ($ok) 702 $attr2 .= ' '.$arreach['whole']; # it passed them 703 } # if !is_array($current) 704 } # foreach 705 706 # Remove any "<" or ">" characters 707 $attr2 = preg_replace('/[<>]/', '', $attr2); 708 709 return "<$element$attr2$xhtml_slash>"; 710 } 711 712 /** 713 * Builds an attribute list from string containing attributes. 714 * 715 * This function does a lot of work. It parses an attribute list into an array 716 * with attribute data, and tries to do the right thing even if it gets weird 717 * input. It will add quotes around attribute values that don't have any quotes 718 * or apostrophes around them, to make it easier to produce HTML code that will 719 * conform to W3C's HTML specification. It will also remove bad URL protocols 720 * from attribute values. It also reduces duplicate attributes by using the 721 * attribute defined first (foo='bar' foo='baz' will result in foo='bar'). 722 * 723 * @since 1.0.0 724 * 725 * @param string $attr Attribute list from HTML element to closing HTML element tag 726 * @param array $allowed_protocols Allowed protocols to keep 727 * @return array List of attributes after parsing 728 */ 729 function wp_kses_hair($attr, $allowed_protocols) { 730 $attrarr = array (); 731 $mode = 0; 732 $attrname = ''; 733 $uris = array('xmlns', 'profile', 'href', 'src', 'cite', 'classid', 'codebase', 'data', 'usemap', 'longdesc', 'action'); 734 735 # Loop through the whole attribute list 736 737 while (strlen($attr) != 0) { 738 $working = 0; # Was the last operation successful? 739 740 switch ($mode) { 741 case 0 : # attribute name, href for instance 742 743 if (preg_match('/^([-a-zA-Z]+)/', $attr, $match)) { 744 $attrname = $match[1]; 745 $working = $mode = 1; 746 $attr = preg_replace('/^[-a-zA-Z]+/', '', $attr); 747 } 748 749 break; 750 751 case 1 : # equals sign or valueless ("selected") 752 753 if (preg_match('/^\s*=\s*/', $attr)) # equals sign 754 { 755 $working = 1; 756 $mode = 2; 757 $attr = preg_replace('/^\s*=\s*/', '', $attr); 758 break; 759 } 760 761 if (preg_match('/^\s+/', $attr)) # valueless 762 { 763 $working = 1; 764 $mode = 0; 765 if(FALSE === array_key_exists($attrname, $attrarr)) { 766 $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); 767 } 768 $attr = preg_replace('/^\s+/', '', $attr); 769 } 770 771 break; 772 773 case 2 : # attribute value, a URL after href= for instance 774 775 if (preg_match('%^"([^"]*)"(\s+|/?$)%', $attr, $match)) 776 # "value" 777 { 778 $thisval = $match[1]; 779 if ( in_array(strtolower($attrname), $uris) ) 780 $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); 781 782 if(FALSE === array_key_exists($attrname, $attrarr)) { 783 $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); 784 } 785 $working = 1; 786 $mode = 0; 787 $attr = preg_replace('/^"[^"]*"(\s+|$)/', '', $attr); 788 break; 789 } 790 791 if (preg_match("%^'([^']*)'(\s+|/?$)%", $attr, $match)) 792 # 'value' 793 { 794 $thisval = $match[1]; 795 if ( in_array(strtolower($attrname), $uris) ) 796 $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); 797 798 if(FALSE === array_key_exists($attrname, $attrarr)) { 799 $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname='$thisval'", 'vless' => 'n'); 800 } 801 $working = 1; 802 $mode = 0; 803 $attr = preg_replace("/^'[^']*'(\s+|$)/", '', $attr); 804 break; 805 } 806 807 if (preg_match("%^([^\s\"']+)(\s+|/?$)%", $attr, $match)) 808 # value 809 { 810 $thisval = $match[1]; 811 if ( in_array(strtolower($attrname), $uris) ) 812 $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); 813 814 if(FALSE === array_key_exists($attrname, $attrarr)) { 815 $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); 816 } 817 # We add quotes to conform to W3C's HTML spec. 818 $working = 1; 819 $mode = 0; 820 $attr = preg_replace("%^[^\s\"']+(\s+|$)%", '', $attr); 821 } 822 823 break; 824 } # switch 825 826 if ($working == 0) # not well formed, remove and try again 827 { 828 $attr = wp_kses_html_error($attr); 829 $mode = 0; 830 } 831 } # while 832 833 if ($mode == 1 && FALSE === array_key_exists($attrname, $attrarr)) 834 # special case, for when the attribute list ends with a valueless 835 # attribute like "selected" 836 $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); 837 838 return $attrarr; 839 } 840 841 /** 842 * Performs different checks for attribute values. 843 * 844 * The currently implemented checks are "maxlen", "minlen", "maxval", "minval" 845 * and "valueless" with even more checks to come soon. 846 * 847 * @since 1.0.0 848 * 849 * @param string $value Attribute value 850 * @param string $vless Whether the value is valueless. Use 'y' or 'n' 851 * @param string $checkname What $checkvalue is checking for. 852 * @param mixed $checkvalue What constraint the value should pass 853 * @return bool Whether check passes 854 */ 855 function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) { 856 $ok = true; 857 858 switch (strtolower($checkname)) { 859 case 'maxlen' : 860 # The maxlen check makes sure that the attribute value has a length not 861 # greater than the given value. This can be used to avoid Buffer Overflows 862 # in WWW clients and various Internet servers. 863 864 if (strlen($value) > $checkvalue) 865 $ok = false; 866 break; 867 868 case 'minlen' : 869 # The minlen check makes sure that the attribute value has a length not 870 # smaller than the given value. 871 872 if (strlen($value) < $checkvalue) 873 $ok = false; 874 break; 875 876 case 'maxval' : 877 # The maxval check does two things: it checks that the attribute value is 878 # an integer from 0 and up, without an excessive amount of zeroes or 879 # whitespace (to avoid Buffer Overflows). It also checks that the attribute 880 # value is not greater than the given value. 881 # This check can be used to avoid Denial of Service attacks. 882 883 if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) 884 $ok = false; 885 if ($value > $checkvalue) 886 $ok = false; 887 break; 888 889 case 'minval' : 890 # The minval check checks that the attribute value is a positive integer, 891 # and that it is not smaller than the given value. 892 893 if (!preg_match('/^\s{0,6}[0-9]{1,6}\s{0,6}$/', $value)) 894 $ok = false; 895 if ($value < $checkvalue) 896 $ok = false; 897 break; 898 899 case 'valueless' : 900 # The valueless check checks if the attribute has a value 901 # (like <a href="blah">) or not (<option selected>). If the given value 902 # is a "y" or a "Y", the attribute must not have a value. 903 # If the given value is an "n" or an "N", the attribute must have one. 904 905 if (strtolower($checkvalue) != $vless) 906 $ok = false; 907 break; 908 } # switch 909 910 return $ok; 911 } 912 913 /** 914 * Sanitize string from bad protocols. 915 * 916 * This function removes all non-allowed protocols from the beginning of 917 * $string. It ignores whitespace and the case of the letters, and it does 918 * understand HTML entities. It does its work in a while loop, so it won't be 919 * fooled by a string like "javascript:javascript:alert(57)". 920 * 921 * @since 1.0.0 922 * 923 * @param string $string Content to filter bad protocols from 924 * @param array $allowed_protocols Allowed protocols to keep 925 * @return string Filtered content 926 */ 927 function wp_kses_bad_protocol($string, $allowed_protocols) { 928 $string = wp_kses_no_null($string); 929 $string2 = $string.'a'; 930 931 while ($string != $string2) { 932 $string2 = $string; 933 $string = wp_kses_bad_protocol_once($string, $allowed_protocols); 934 } # while 935 936 return $string; 937 } 938 939 /** 940 * Removes any NULL characters in $string. 941 * 942 * @since 1.0.0 943 * 944 * @param string $string 945 * @return string 946 */ 947 function wp_kses_no_null($string) { 948 $string = preg_replace('/\0+/', '', $string); 949 $string = preg_replace('/(\\\\0)+/', '', $string); 950 951 return $string; 952 } 953 954 /** 955 * Strips slashes from in front of quotes. 956 * 957 * This function changes the character sequence \" to just ". It leaves all 958 * other slashes alone. It's really weird, but the quoting from 959 * preg_replace(//e) seems to require this. 960 * 961 * @since 1.0.0 962 * 963 * @param string $string String to strip slashes 964 * @return string Fixed strings with quoted slashes 965 */ 966 function wp_kses_stripslashes($string) { 967 return preg_replace('%\\\\"%', '"', $string); 968 } 969 970 /** 971 * Goes through an array and changes the keys to all lower case. 972 * 973 * @since 1.0.0 974 * 975 * @param array $inarray Unfiltered array 976 * @return array Fixed array with all lowercase keys 977 */ 978 function wp_kses_array_lc($inarray) { 979 $outarray = array (); 980 981 foreach ( (array) $inarray as $inkey => $inval) { 982 $outkey = strtolower($inkey); 983 $outarray[$outkey] = array (); 984 985 foreach ( (array) $inval as $inkey2 => $inval2) { 986 $outkey2 = strtolower($inkey2); 987 $outarray[$outkey][$outkey2] = $inval2; 988 } # foreach $inval 989 } # foreach $inarray 990 991 return $outarray; 992 } 993 994 /** 995 * Removes the HTML JavaScript entities found in early versions of Netscape 4. 996 * 997 * @since 1.0.0 998 * 999 * @param string $string 1000 * @return string 1001 */ 1002 function wp_kses_js_entities($string) { 1003 return preg_replace('%&\s*\{[^}]*(\}\s*;?|$)%', '', $string); 1004 } 1005 1006 /** 1007 * Handles parsing errors in wp_kses_hair(). 1008 * 1009 * The general plan is to remove everything to and including some whitespace, 1010 * but it deals with quotes and apostrophes as well. 1011 * 1012 * @since 1.0.0 1013 * 1014 * @param string $string 1015 * @return string 1016 */ 1017 function wp_kses_html_error($string) { 1018 return preg_replace('/^("[^"]*("|$)|\'[^\']*(\'|$)|\S)*\s*/', '', $string); 1019 } 1020 1021 /** 1022 * Sanitizes content from bad protocols and other characters. 1023 * 1024 * This function searches for URL protocols at the beginning of $string, while 1025 * handling whitespace and HTML entities. 1026 * 1027 * @since 1.0.0 1028 * 1029 * @param string $string Content to check for bad protocols 1030 * @param string $allowed_protocols Allowed protocols 1031 * @return string Sanitized content 1032 */ 1033 function wp_kses_bad_protocol_once($string, $allowed_protocols) { 1034 $string2 = preg_split( '/:|�*58;|�*3a;/i', $string, 2 ); 1035 if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) 1036 $string = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols ) . trim( $string2[1] ); 1037 1038 return $string; 1039 } 1040 1041 /** 1042 * Callback for wp_kses_bad_protocol_once() regular expression. 1043 * 1044 * This function processes URL protocols, checks to see if they're in the 1045 * white-list or not, and returns different data depending on the answer. 1046 * 1047 * @access private 1048 * @since 1.0.0 1049 * 1050 * @param string $string URI scheme to check against the whitelist 1051 * @param string $allowed_protocols Allowed protocols 1052 * @return string Sanitized content 1053 */ 1054 function wp_kses_bad_protocol_once2( $string, $allowed_protocols ) { 1055 $string2 = wp_kses_decode_entities($string); 1056 $string2 = preg_replace('/\s/', '', $string2); 1057 $string2 = wp_kses_no_null($string2); 1058 $string2 = strtolower($string2); 1059 1060 $allowed = false; 1061 foreach ( (array) $allowed_protocols as $one_protocol ) 1062 if ( strtolower($one_protocol) == $string2 ) { 1063 $allowed = true; 1064 break; 1065 } 1066 1067 if ($allowed) 1068 return "$string2:"; 1069 else 1070 return ''; 1071 } 1072 1073 /** 1074 * Converts and fixes HTML entities. 1075 * 1076 * This function normalizes HTML entities. It will convert "AT&T" to the correct 1077 * "AT&T", ":" to ":", "&#XYZZY;" to "&#XYZZY;" and so on. 1078 * 1079 * @since 1.0.0 1080 * 1081 * @param string $string Content to normalize entities 1082 * @return string Content with normalized entities 1083 */ 1084 function wp_kses_normalize_entities($string) { 1085 # Disarm all entities by converting & to & 1086 1087 $string = str_replace('&', '&', $string); 1088 1089 # Change back the allowed entities in our entity whitelist 1090 1091 $string = preg_replace_callback('/&([A-Za-z]{2,8});/', 'wp_kses_named_entities', $string); 1092 $string = preg_replace_callback('/&#(0*[0-9]{1,7});/', 'wp_kses_normalize_entities2', $string); 1093 $string = preg_replace_callback('/&#[Xx](0*[0-9A-Fa-f]{1,6});/', 'wp_kses_normalize_entities3', $string); 1094 1095 return $string; 1096 } 1097 1098 /** 1099 * Callback for wp_kses_normalize_entities() regular expression. 1100 * 1101 * This function only accepts valid named entity references, which are finite, 1102 * case-sensitive, and highly scrutinized by HTML and XML validators. 1103 * 1104 * @since 3.0.0 1105 * 1106 * @param array $matches preg_replace_callback() matches array 1107 * @return string Correctly encoded entity 1108 */ 1109 function wp_kses_named_entities($matches) { 1110 global $allowedentitynames; 1111 1112 if ( empty($matches[1]) ) 1113 return ''; 1114 1115 $i = $matches[1]; 1116 return ( ( ! in_array($i, $allowedentitynames) ) ? "&$i;" : "&$i;" ); 1117 } 1118 1119 /** 1120 * Callback for wp_kses_normalize_entities() regular expression. 1121 * 1122 * This function helps wp_kses_normalize_entities() to only accept 16 bit values 1123 * and nothing more for &#number; entities. 1124 * 1125 * @access private 1126 * @since 1.0.0 1127 * 1128 * @param array $matches preg_replace_callback() matches array 1129 * @return string Correctly encoded entity 1130 */ 1131 function wp_kses_normalize_entities2($matches) { 1132 if ( empty($matches[1]) ) 1133 return ''; 1134 1135 $i = $matches[1]; 1136 if (valid_unicode($i)) { 1137 $i = str_pad(ltrim($i,'0'), 3, '0', STR_PAD_LEFT); 1138 $i = "&#$i;"; 1139 } else { 1140 $i = "&#$i;"; 1141 } 1142 1143 return $i; 1144 } 1145 1146 /** 1147 * Callback for wp_kses_normalize_entities() for regular expression. 1148 * 1149 * This function helps wp_kses_normalize_entities() to only accept valid Unicode 1150 * numeric entities in hex form. 1151 * 1152 * @access private 1153 * 1154 * @param array $matches preg_replace_callback() matches array 1155 * @return string Correctly encoded entity 1156 */ 1157 function wp_kses_normalize_entities3($matches) { 1158 if ( empty($matches[1]) ) 1159 return ''; 1160 1161 $hexchars = $matches[1]; 1162 return ( ( ! valid_unicode(hexdec($hexchars)) ) ? "&#x$hexchars;" : '&#x'.ltrim($hexchars,'0').';' ); 1163 } 1164 1165 /** 1166 * Helper function to determine if a Unicode value is valid. 1167 * 1168 * @param int $i Unicode value 1169 * @return bool true if the value was a valid Unicode number 1170 */ 1171 function valid_unicode($i) { 1172 return ( $i == 0x9 || $i == 0xa || $i == 0xd || 1173 ($i >= 0x20 && $i <= 0xd7ff) || 1174 ($i >= 0xe000 && $i <= 0xfffd) || 1175 ($i >= 0x10000 && $i <= 0x10ffff) ); 1176 } 1177 1178 /** 1179 * Convert all entities to their character counterparts. 1180 * 1181 * This function decodes numeric HTML entities (A and A). It doesn't do 1182 * anything with other entities like ä, but we don't need them in the URL 1183 * protocol whitelisting system anyway. 1184 * 1185 * @since 1.0.0 1186 * 1187 * @param string $string Content to change entities 1188 * @return string Content after decoded entities 1189 */ 1190 function wp_kses_decode_entities($string) { 1191 $string = preg_replace_callback('/&#([0-9]+);/', '_wp_kses_decode_entities_chr', $string); 1192 $string = preg_replace_callback('/&#[Xx]([0-9A-Fa-f]+);/', '_wp_kses_decode_entities_chr_hexdec', $string); 1193 1194 return $string; 1195 } 1196 1197 /** 1198 * Regex callback for wp_kses_decode_entities() 1199 * 1200 * @param array $match preg match 1201 * @return string 1202 */ 1203 function _wp_kses_decode_entities_chr( $match ) { 1204 return chr( $match[1] ); 1205 } 1206 1207 /** 1208 * Regex callback for wp_kses_decode_entities() 1209 * 1210 * @param array $match preg match 1211 * @return string 1212 */ 1213 function _wp_kses_decode_entities_chr_hexdec( $match ) { 1214 return chr( hexdec( $match[1] ) ); 1215 } 1216 1217 /** 1218 * Sanitize content with allowed HTML Kses rules. 1219 * 1220 * @since 1.0.0 1221 * @uses $allowedtags 1222 * 1223 * @param string $data Content to filter, expected to be escaped with slashes 1224 * @return string Filtered content 1225 */ 1226 function wp_filter_kses($data) { 1227 global $allowedtags; 1228 return addslashes( wp_kses(stripslashes( $data ), $allowedtags) ); 1229 } 1230 1231 /** 1232 * Sanitize content with allowed HTML Kses rules. 1233 * 1234 * @since 2.9.0 1235 * @uses $allowedtags 1236 * 1237 * @param string $data Content to filter, expected to not be escaped 1238 * @return string Filtered content 1239 */ 1240 function wp_kses_data($data) { 1241 global $allowedtags; 1242 return wp_kses( $data , $allowedtags ); 1243 } 1244 1245 /** 1246 * Sanitize content for allowed HTML tags for post content. 1247 * 1248 * Post content refers to the page contents of the 'post' type and not $_POST 1249 * data from forms. 1250 * 1251 * @since 2.0.0 1252 * @uses $allowedposttags 1253 * 1254 * @param string $data Post content to filter, expected to be escaped with slashes 1255 * @return string Filtered post content with allowed HTML tags and attributes intact. 1256 */ 1257 function wp_filter_post_kses($data) { 1258 global $allowedposttags; 1259 return addslashes ( wp_kses(stripslashes( $data ), $allowedposttags) ); 1260 } 1261 1262 /** 1263 * Sanitize content for allowed HTML tags for post content. 1264 * 1265 * Post content refers to the page contents of the 'post' type and not $_POST 1266 * data from forms. 1267 * 1268 * @since 2.9.0 1269 * @uses $allowedposttags 1270 * 1271 * @param string $data Post content to filter 1272 * @return string Filtered post content with allowed HTML tags and attributes intact. 1273 */ 1274 function wp_kses_post($data) { 1275 global $allowedposttags; 1276 return wp_kses( $data , $allowedposttags ); 1277 } 1278 1279 /** 1280 * Strips all of the HTML in the content. 1281 * 1282 * @since 2.1.0 1283 * 1284 * @param string $data Content to strip all HTML from 1285 * @return string Filtered content without any HTML 1286 */ 1287 function wp_filter_nohtml_kses($data) { 1288 return addslashes ( wp_kses(stripslashes( $data ), array()) ); 1289 } 1290 1291 /** 1292 * Adds all Kses input form content filters. 1293 * 1294 * All hooks have default priority. The wp_filter_kses() function is added to 1295 * the 'pre_comment_content' and 'title_save_pre' hooks. 1296 * 1297 * The wp_filter_post_kses() function is added to the 'content_save_pre', 1298 * 'excerpt_save_pre', and 'content_filtered_save_pre' hooks. 1299 * 1300 * @since 2.0.0 1301 * @uses add_filter() See description for what functions are added to what hooks. 1302 */ 1303 function kses_init_filters() { 1304 // Normal filtering. 1305 add_filter('pre_comment_content', 'wp_filter_kses'); 1306 add_filter('title_save_pre', 'wp_filter_kses'); 1307 1308 // Post filtering 1309 add_filter('content_save_pre', 'wp_filter_post_kses'); 1310 add_filter('excerpt_save_pre', 'wp_filter_post_kses'); 1311 add_filter('content_filtered_save_pre', 'wp_filter_post_kses'); 1312 } 1313 1314 /** 1315 * Removes all Kses input form content filters. 1316 * 1317 * A quick procedural method to removing all of the filters that kses uses for 1318 * content in WordPress Loop. 1319 * 1320 * Does not remove the kses_init() function from 'init' hook (priority is 1321 * default). Also does not remove kses_init() function from 'set_current_user' 1322 * hook (priority is also default). 1323 * 1324 * @since 2.0.6 1325 */ 1326 function kses_remove_filters() { 1327 // Normal filtering. 1328 remove_filter('pre_comment_content', 'wp_filter_kses'); 1329 remove_filter('title_save_pre', 'wp_filter_kses'); 1330 1331 // Post filtering 1332 remove_filter('content_save_pre', 'wp_filter_post_kses'); 1333 remove_filter('excerpt_save_pre', 'wp_filter_post_kses'); 1334 remove_filter('content_filtered_save_pre', 'wp_filter_post_kses'); 1335 } 1336 1337 /** 1338 * Sets up most of the Kses filters for input form content. 1339 * 1340 * If you remove the kses_init() function from 'init' hook and 1341 * 'set_current_user' (priority is default), then none of the Kses filter hooks 1342 * will be added. 1343 * 1344 * First removes all of the Kses filters in case the current user does not need 1345 * to have Kses filter the content. If the user does not have unfiltered html 1346 * capability, then Kses filters are added. 1347 * 1348 * @uses kses_remove_filters() Removes the Kses filters 1349 * @uses kses_init_filters() Adds the Kses filters back if the user 1350 * does not have unfiltered HTML capability. 1351 * @since 2.0.0 1352 */ 1353 function kses_init() { 1354 kses_remove_filters(); 1355 1356 if (current_user_can('unfiltered_html') == false) 1357 kses_init_filters(); 1358 } 1359 1360 add_action('init', 'kses_init'); 1361 add_action('set_current_user', 'kses_init'); 1362 1363 /** 1364 * Inline CSS filter 1365 * 1366 * @since 2.8.1 1367 */ 1368 function safecss_filter_attr( $css, $deprecated = '' ) { 1369 if ( !empty( $deprecated ) ) 1370 _deprecated_argument( __FUNCTION__, '2.8.1' ); // Never implemented 1371 1372 $css = wp_kses_no_null($css); 1373 $css = str_replace(array("\n","\r","\t"), '', $css); 1374 1375 if ( preg_match( '%[\\(&=}]|/\*%', $css ) ) // remove any inline css containing \ ( & } = or comments 1376 return ''; 1377 1378 $css_array = explode( ';', trim( $css ) ); 1379 $allowed_attr = apply_filters( 'safe_style_css', array( 'text-align', 'margin', 'color', 'float', 1380 'border', 'background', 'background-color', 'border-bottom', 'border-bottom-color', 1381 'border-bottom-style', 'border-bottom-width', 'border-collapse', 'border-color', 'border-left', 1382 'border-left-color', 'border-left-style', 'border-left-width', 'border-right', 'border-right-color', 1383 'border-right-style', 'border-right-width', 'border-spacing', 'border-style', 'border-top', 1384 'border-top-color', 'border-top-style', 'border-top-width', 'border-width', 'caption-side', 1385 'clear', 'cursor', 'direction', 'font', 'font-family', 'font-size', 'font-style', 1386 'font-variant', 'font-weight', 'height', 'letter-spacing', 'line-height', 'margin-bottom', 1387 'margin-left', 'margin-right', 'margin-top', 'overflow', 'padding', 'padding-bottom', 1388 'padding-left', 'padding-right', 'padding-top', 'text-decoration', 'text-indent', 'vertical-align', 1389 'width' ) ); 1390 1391 if ( empty($allowed_attr) ) 1392 return $css; 1393 1394 $css = ''; 1395 foreach ( $css_array as $css_item ) { 1396 if ( $css_item == '' ) 1397 continue; 1398 $css_item = trim( $css_item ); 1399 $found = false; 1400 if ( strpos( $css_item, ':' ) === false ) { 1401 $found = true; 1402 } else { 1403 $parts = split( ':', $css_item ); 1404 if ( in_array( trim( $parts[0] ), $allowed_attr ) ) 1405 $found = true; 1406 } 1407 if ( $found ) { 1408 if( $css != '' ) 1409 $css .= ';'; 1410 $css .= $css_item; 1411 } 1412 } 1413 1414 return $css; 1415 }
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