X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/5aa86a9053fb0fa15846bb60aac2fb8fdfff524a..8f374b7233bc2815ccc387e448d208c5434eb961:/wp-includes/kses.php diff --git a/wp-includes/kses.php b/wp-includes/kses.php index d76b3448..b9f13fac 100644 --- a/wp-includes/kses.php +++ b/wp-includes/kses.php @@ -10,7 +10,7 @@ * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along @@ -51,348 +51,390 @@ if ( ! CUSTOM_TAGS ) { $allowedposttags = array( 'address' => array(), 'a' => array( - 'class' => array (), - 'href' => array (), - 'id' => array (), - 'title' => array (), - 'rel' => array (), - 'rev' => array (), - 'name' => array (), - 'target' => array()), + 'class' => true, + 'href' => true, + 'id' => true, + 'title' => true, + 'rel' => true, + 'rev' => true, + 'name' => true, + 'target' => true, + ), 'abbr' => array( - 'class' => array (), - 'title' => array ()), + 'class' => true, + 'title' => true, + ), 'acronym' => array( - 'title' => array ()), + 'title' => true, + ), 'article' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'aside' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'b' => array(), 'big' => array(), 'blockquote' => array( - 'id' => array (), - 'cite' => array (), - 'class' => array(), - 'lang' => array(), - 'xml:lang' => array()), + 'id' => true, + 'cite' => true, + 'class' => true, + 'lang' => true, + 'xml:lang' => true, + ), 'br' => array ( - 'class' => array ()), + 'class' => true, + ), 'button' => array( - 'disabled' => array (), - 'name' => array (), - 'type' => array (), - 'value' => array ()), + 'disabled' => true, + 'name' => true, + 'type' => true, + 'value' => true, + ), 'caption' => array( - 'align' => array (), - 'class' => array ()), + 'align' => true, + 'class' => true, + ), 'cite' => array ( - 'class' => array(), - 'dir' => array(), - 'lang' => array(), - 'title' => array ()), + 'class' => true, + 'dir' => true, + 'lang' => true, + 'title' => true, + ), 'code' => array ( - 'style' => array()), + 'style' => true, + ), 'col' => array( - 'align' => array (), - 'char' => array (), - 'charoff' => array (), - 'span' => array (), - 'dir' => array(), - 'style' => array (), - 'valign' => array (), - 'width' => array ()), + 'align' => true, + 'char' => true, + 'charoff' => true, + 'span' => true, + 'dir' => true, + 'style' => true, + 'valign' => true, + 'width' => true, + ), 'del' => array( - 'datetime' => array ()), + 'datetime' => true, + ), 'dd' => array(), 'details' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'open' => array (), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'open' => true, + 'style' => true, + 'xml:lang' => true, ), 'div' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array()), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, + ), 'dl' => array(), 'dt' => array(), 'em' => array(), 'fieldset' => array(), 'figure' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'figcaption' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'font' => array( - 'color' => array (), - 'face' => array (), - 'size' => array ()), + 'color' => true, + 'face' => true, + 'size' => true, + ), 'footer' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'form' => array( - 'action' => array (), - 'accept' => array (), - 'accept-charset' => array (), - 'enctype' => array (), - 'method' => array (), - 'name' => array (), - 'target' => array ()), + 'action' => true, + 'accept' => true, + 'accept-charset' => true, + 'enctype' => true, + 'method' => true, + 'name' => true, + 'target' => true, + ), 'h1' => array( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'h2' => array ( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'h3' => array ( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'h4' => array ( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'h5' => array ( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'h6' => array ( - 'align' => array (), - 'class' => array (), - 'id' => array (), - 'style' => array ()), + 'align' => true, + 'class' => true, + 'id' => true, + 'style' => true, + ), 'header' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'hgroup' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'hr' => array ( - 'align' => array (), - 'class' => array (), - 'noshade' => array (), - 'size' => array (), - 'width' => array ()), + 'align' => true, + 'class' => true, + 'noshade' => true, + 'size' => true, + 'width' => true, + ), 'i' => array(), 'img' => array( - 'alt' => array (), - 'align' => array (), - 'border' => array (), - 'class' => array (), - 'height' => array (), - 'hspace' => array (), - 'longdesc' => array (), - 'vspace' => array (), - 'src' => array (), - 'style' => array (), - 'width' => array ()), + 'alt' => true, + 'align' => true, + 'border' => true, + 'class' => true, + 'height' => true, + 'hspace' => true, + 'longdesc' => true, + 'vspace' => true, + 'src' => true, + 'style' => true, + 'width' => true, + ), 'ins' => array( - 'datetime' => array (), - 'cite' => array ()), + 'datetime' => true, + 'cite' => true, + ), 'kbd' => array(), 'label' => array( - 'for' => array ()), + 'for' => true, + ), 'legend' => array( - 'align' => array ()), + 'align' => true, + ), 'li' => array ( - 'align' => array (), - 'class' => array ()), + 'align' => true, + 'class' => true, + ), 'menu' => array ( - 'class' => array (), - 'style' => array (), - 'type' => array ()), + 'class' => true, + 'style' => true, + 'type' => true, + ), 'nav' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'p' => array( - 'class' => array (), - 'align' => array (), - 'dir' => array(), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array()), + 'class' => true, + 'align' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, + ), 'pre' => array( - 'style' => array(), - 'width' => array ()), + 'style' => true, + 'width' => true, + ), 'q' => array( - 'cite' => array ()), + 'cite' => true, + ), 's' => array(), 'span' => array ( - 'class' => array (), - 'dir' => array (), - 'align' => array (), - 'lang' => array (), - 'style' => array (), - 'title' => array (), - 'xml:lang' => array()), + 'class' => true, + 'dir' => true, + 'align' => true, + 'lang' => true, + 'style' => true, + 'title' => true, + 'xml:lang' => true, + ), 'section' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'strike' => array(), 'strong' => array(), 'sub' => array(), 'summary' => array( - 'align' => array (), - 'class' => array (), - 'dir' => array (), - 'lang' => array(), - 'style' => array (), - 'xml:lang' => array(), + 'align' => true, + 'class' => true, + 'dir' => true, + 'lang' => true, + 'style' => true, + 'xml:lang' => true, ), 'sup' => array(), 'table' => array( - 'align' => array (), - 'bgcolor' => array (), - 'border' => array (), - 'cellpadding' => array (), - 'cellspacing' => array (), - 'class' => array (), - 'dir' => array(), - 'id' => array(), - 'rules' => array (), - 'style' => array (), - 'summary' => array (), - 'width' => array ()), + 'align' => true, + 'bgcolor' => true, + 'border' => true, + 'cellpadding' => true, + 'cellspacing' => true, + 'class' => true, + 'dir' => true, + 'id' => true, + 'rules' => true, + 'style' => true, + 'summary' => true, + 'width' => true, + ), 'tbody' => array( - 'align' => array (), - 'char' => array (), - 'charoff' => array (), - 'valign' => array ()), + 'align' => true, + 'char' => true, + 'charoff' => true, + 'valign' => true, + ), 'td' => array( - 'abbr' => array (), - 'align' => array (), - 'axis' => array (), - 'bgcolor' => array (), - 'char' => array (), - 'charoff' => array (), - 'class' => array (), - 'colspan' => array (), - 'dir' => array(), - 'headers' => array (), - 'height' => array (), - 'nowrap' => array (), - 'rowspan' => array (), - 'scope' => array (), - 'style' => array (), - 'valign' => array (), - 'width' => array ()), + 'abbr' => true, + 'align' => true, + 'axis' => true, + 'bgcolor' => true, + 'char' => true, + 'charoff' => true, + 'class' => true, + 'colspan' => true, + 'dir' => true, + 'headers' => true, + 'height' => true, + 'nowrap' => true, + 'rowspan' => true, + 'scope' => true, + 'style' => true, + 'valign' => true, + 'width' => true, + ), 'textarea' => array( - 'cols' => array (), - 'rows' => array (), - 'disabled' => array (), - 'name' => array (), - 'readonly' => array ()), + 'cols' => true, + 'rows' => true, + 'disabled' => true, + 'name' => true, + 'readonly' => true, + ), 'tfoot' => array( - 'align' => array (), - 'char' => array (), - 'class' => array (), - 'charoff' => array (), - 'valign' => array ()), + 'align' => true, + 'char' => true, + 'class' => true, + 'charoff' => true, + 'valign' => true, + ), 'th' => array( - 'abbr' => array (), - 'align' => array (), - 'axis' => array (), - 'bgcolor' => array (), - 'char' => array (), - 'charoff' => array (), - 'class' => array (), - 'colspan' => array (), - 'headers' => array (), - 'height' => array (), - 'nowrap' => array (), - 'rowspan' => array (), - 'scope' => array (), - 'valign' => array (), - 'width' => array ()), + 'abbr' => true, + 'align' => true, + 'axis' => true, + 'bgcolor' => true, + 'char' => true, + 'charoff' => true, + 'class' => true, + 'colspan' => true, + 'headers' => true, + 'height' => true, + 'nowrap' => true, + 'rowspan' => true, + 'scope' => true, + 'valign' => true, + 'width' => true, + ), 'thead' => array( - 'align' => array (), - 'char' => array (), - 'charoff' => array (), - 'class' => array (), - 'valign' => array ()), + 'align' => true, + 'char' => true, + 'charoff' => true, + 'class' => true, + 'valign' => true, + ), 'title' => array(), 'tr' => array( - 'align' => array (), - 'bgcolor' => array (), - 'char' => array (), - 'charoff' => array (), - 'class' => array (), - 'style' => array (), - 'valign' => array ()), + 'align' => true, + 'bgcolor' => true, + 'char' => true, + 'charoff' => true, + 'class' => true, + 'style' => true, + 'valign' => true, + ), 'tt' => array(), 'u' => array(), 'ul' => array ( - 'class' => array (), - 'style' => array (), - 'type' => array ()), + 'class' => true, + 'style' => true, + 'type' => true, + ), 'ol' => array ( - 'class' => array (), - 'start' => array (), - 'style' => array (), - 'type' => array ()), - 'var' => array ()); + 'class' => true, + 'start' => true, + 'style' => true, + 'type' => true, + ), + 'var' => array(), + ); /** * Kses allowed HTML elements. @@ -402,20 +444,25 @@ if ( ! CUSTOM_TAGS ) { */ $allowedtags = array( 'a' => array( - 'href' => array (), - 'title' => array ()), + 'href' => true, + 'title' => true, + ), 'abbr' => array( - 'title' => array ()), + 'title' => true, + ), 'acronym' => array( - 'title' => array ()), + 'title' => true, + ), 'b' => array(), 'blockquote' => array( - 'cite' => array ()), + 'cite' => true, + ), // 'br' => array(), - 'cite' => array (), + 'cite' => array(), 'code' => array(), 'del' => array( - 'datetime' => array ()), + 'datetime' => true, + ), // 'dd' => array(), // 'dl' => array(), // 'dt' => array(), @@ -425,7 +472,8 @@ if ( ! CUSTOM_TAGS ) { // 'ol' => array(), // 'p' => array(), 'q' => array( - 'cite' => array ()), + 'cite' => true, + ), 'strike' => array(), 'strong' => array(), // 'sub' => array(), @@ -674,6 +722,17 @@ function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) { if ( $current == '' ) continue; # the attribute is not allowed + if ( strtolower( $arreach['name'] ) == 'style' ) { + $orig_value = $arreach['value']; + $value = safecss_filter_attr( $orig_value ); + + if ( empty( $value ) ) + continue; + + $arreach['value'] = $value; + $arreach['whole'] = str_replace( $orig_value, $value, $arreach['whole'] ); + } + if ( ! is_array($current) ) { $attr2 .= ' '.$arreach['whole']; # there are no checks @@ -688,18 +747,7 @@ function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) { } } - if ( strtolower($arreach['name']) == 'style' ) { - $orig_value = $arreach['value']; - $value = safecss_filter_attr($orig_value); - - if ( empty($value) ) - continue; - - $arreach['value'] = $value; - $arreach['whole'] = str_replace($orig_value, $value, $arreach['whole']); - } - - if ($ok) + if ( $ok ) $attr2 .= ' '.$arreach['whole']; # it passed them } # if !is_array($current) } # foreach @@ -718,7 +766,7 @@ function wp_kses_attr($element, $attr, $allowed_html, $allowed_protocols) { * input. It will add quotes around attribute values that don't have any quotes * or apostrophes around them, to make it easier to produce HTML code that will * conform to W3C's HTML specification. It will also remove bad URL protocols - * from attribute values. It also reduces duplicate attributes by using the + * from attribute values. It also reduces duplicate attributes by using the * attribute defined first (foo='bar' foo='baz' will result in foo='bar'). * * @since 1.0.0 @@ -763,7 +811,7 @@ function wp_kses_hair($attr, $allowed_protocols) { { $working = 1; $mode = 0; - if(FALSE === array_key_exists($attrname, $attrarr)) { + if(false === array_key_exists($attrname, $attrarr)) { $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); } $attr = preg_replace('/^\s+/', '', $attr); @@ -780,7 +828,7 @@ function wp_kses_hair($attr, $allowed_protocols) { if ( in_array(strtolower($attrname), $uris) ) $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); - if(FALSE === array_key_exists($attrname, $attrarr)) { + if(false === array_key_exists($attrname, $attrarr)) { $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); } $working = 1; @@ -796,7 +844,7 @@ function wp_kses_hair($attr, $allowed_protocols) { if ( in_array(strtolower($attrname), $uris) ) $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); - if(FALSE === array_key_exists($attrname, $attrarr)) { + if(false === array_key_exists($attrname, $attrarr)) { $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname='$thisval'", 'vless' => 'n'); } $working = 1; @@ -812,7 +860,7 @@ function wp_kses_hair($attr, $allowed_protocols) { if ( in_array(strtolower($attrname), $uris) ) $thisval = wp_kses_bad_protocol($thisval, $allowed_protocols); - if(FALSE === array_key_exists($attrname, $attrarr)) { + if(false === array_key_exists($attrname, $attrarr)) { $attrarr[$attrname] = array ('name' => $attrname, 'value' => $thisval, 'whole' => "$attrname=\"$thisval\"", 'vless' => 'n'); } # We add quotes to conform to W3C's HTML spec. @@ -831,7 +879,7 @@ function wp_kses_hair($attr, $allowed_protocols) { } } # while - if ($mode == 1 && FALSE === array_key_exists($attrname, $attrarr)) + if ($mode == 1 && false === array_key_exists($attrname, $attrarr)) # special case, for when the attribute list ends with a valueless # attribute like "selected" $attrarr[$attrname] = array ('name' => $attrname, 'value' => '', 'whole' => $attrname, 'vless' => 'y'); @@ -927,18 +975,21 @@ function wp_kses_check_attr_val($value, $vless, $checkname, $checkvalue) { */ function wp_kses_bad_protocol($string, $allowed_protocols) { $string = wp_kses_no_null($string); - $string2 = $string.'a'; + $iterations = 0; - while ($string != $string2) { - $string2 = $string; + do { + $original_string = $string; $string = wp_kses_bad_protocol_once($string, $allowed_protocols); - } # while + } while ( $original_string != $string && ++$iterations < 6 ); + + if ( $original_string != $string ) + return ''; return $string; } /** - * Removes any NULL characters in $string. + * Removes any null characters in $string. * * @since 1.0.0 * @@ -1031,10 +1082,20 @@ function wp_kses_html_error($string) { * @param string $allowed_protocols Allowed protocols * @return string Sanitized content */ -function wp_kses_bad_protocol_once($string, $allowed_protocols) { +function wp_kses_bad_protocol_once($string, $allowed_protocols, $count = 1 ) { $string2 = preg_split( '/:|�*58;|�*3a;/i', $string, 2 ); - if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) - $string = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols ) . trim( $string2[1] ); + if ( isset($string2[1]) && ! preg_match('%/\?%', $string2[0]) ) { + $string = trim( $string2[1] ); + $protocol = wp_kses_bad_protocol_once2( $string2[0], $allowed_protocols ); + if ( 'feed:' == $protocol ) { + if ( $count > 2 ) + return ''; + $string = wp_kses_bad_protocol_once( $string, $allowed_protocols, ++$count ); + if ( empty( $string ) ) + return $string; + } + $string = $protocol . $string; + } return $string; } @@ -1302,10 +1363,15 @@ function wp_filter_nohtml_kses($data) { * @uses add_filter() See description for what functions are added to what hooks. */ function kses_init_filters() { - // Normal filtering. - add_filter('pre_comment_content', 'wp_filter_kses'); + // Normal filtering add_filter('title_save_pre', 'wp_filter_kses'); + // Comment filtering + if ( current_user_can( 'unfiltered_html' ) ) + add_filter( 'pre_comment_content', 'wp_filter_post_kses' ); + else + add_filter( 'pre_comment_content', 'wp_filter_kses' ); + // Post filtering add_filter('content_save_pre', 'wp_filter_post_kses'); add_filter('excerpt_save_pre', 'wp_filter_post_kses'); @@ -1325,10 +1391,13 @@ function kses_init_filters() { * @since 2.0.6 */ function kses_remove_filters() { - // Normal filtering. - remove_filter('pre_comment_content', 'wp_filter_kses'); + // Normal filtering remove_filter('title_save_pre', 'wp_filter_kses'); + // Comment filtering + remove_filter( 'pre_comment_content', 'wp_filter_post_kses' ); + remove_filter( 'pre_comment_content', 'wp_filter_kses' ); + // Post filtering remove_filter('content_save_pre', 'wp_filter_post_kses'); remove_filter('excerpt_save_pre', 'wp_filter_post_kses'); @@ -1401,7 +1470,7 @@ function safecss_filter_attr( $css, $deprecated = '' ) { if ( strpos( $css_item, ':' ) === false ) { $found = true; } else { - $parts = split( ':', $css_item ); + $parts = explode( ':', $css_item ); if ( in_array( trim( $parts[0] ), $allowed_attr ) ) $found = true; }