<?php
/**
- * Main Wordpress Formatting API.
+ * Main WordPress Formatting API.
*
* Handles many functions for formatting output.
*
*/
function wptexturize($text) {
global $wp_cockneyreplace;
- $output = '';
- $curl = '';
- $textarr = preg_split('/(<.*>|\[.*\])/Us', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
- $stop = count($textarr);
-
- /* translators: opening curly quote */
- $opening_quote = _x('“', 'opening curly quote');
- /* translators: closing curly quote */
- $closing_quote = _x('”', 'closing curly quote');
-
- $no_texturize_tags = apply_filters('no_texturize_tags', array('pre', 'code', 'kbd', 'style', 'script', 'tt'));
- $no_texturize_shortcodes = apply_filters('no_texturize_shortcodes', array('code'));
- $no_texturize_tags_stack = array();
- $no_texturize_shortcodes_stack = array();
+ static $opening_quote, $closing_quote, $en_dash, $em_dash, $default_no_texturize_tags, $default_no_texturize_shortcodes, $static_characters, $static_replacements, $dynamic_characters, $dynamic_replacements;
+
+ // No need to set up these static variables more than once
+ if ( empty( $opening_quote ) ) {
+ /* translators: opening curly quote */
+ $opening_quote = _x('“', 'opening curly quote');
+ /* translators: closing curly quote */
+ $closing_quote = _x('”', 'closing curly quote');
+ /* translators: en dash */
+ $en_dash = _x('–', 'en dash');
+ /* translators: em dash */
+ $em_dash = _x('—', 'em dash');
+
+ $default_no_texturize_tags = array('pre', 'code', 'kbd', 'style', 'script', 'tt');
+ $default_no_texturize_shortcodes = array('code');
+
+ // if a plugin has provided an autocorrect array, use it
+ if ( isset($wp_cockneyreplace) ) {
+ $cockney = array_keys($wp_cockneyreplace);
+ $cockneyreplace = array_values($wp_cockneyreplace);
+ } else {
+ $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
+ $cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round","’cause");
+ }
- // if a plugin has provided an autocorrect array, use it
- if ( isset($wp_cockneyreplace) ) {
- $cockney = array_keys($wp_cockneyreplace);
- $cockneyreplace = array_values($wp_cockneyreplace);
- } else {
- $cockney = array("'tain't","'twere","'twas","'tis","'twill","'til","'bout","'nuff","'round","'cause");
- $cockneyreplace = array("’tain’t","’twere","’twas","’tis","’twill","’til","’bout","’nuff","’round","’cause");
+ $static_characters = array_merge( array('---', ' -- ', '--', ' - ', 'xn–', '...', '``', '\'\'', ' (tm)'), $cockney );
+ $static_replacements = array_merge( array($em_dash, ' ' . $em_dash . ' ', $en_dash, ' ' . $en_dash . ' ', 'xn--', '…', $opening_quote, $closing_quote, ' ™'), $cockneyreplace );
+
+ $dynamic_characters = array('/\'(\d\d(?:’|\')?s)/', '/\'(\d)/', '/(\s|\A|[([{<]|")\'/', '/(\d)"/', '/(\d)\'/', '/(\S)\'([^\'\s])/', '/(\s|\A|[([{<])"(?!\s)/', '/"(\s|\S|\Z)/', '/\'([\s.]|\Z)/', '/\b(\d+)x(\d+)\b/');
+ $dynamic_replacements = array('’$1','’$1', '$1‘', '$1″', '$1′', '$1’$2', '$1' . $opening_quote . '$2', $closing_quote . '$1', '’$1', '$1×$2');
}
- $static_characters = array_merge(array('---', ' -- ', '--', ' - ', 'xn–', '...', '``', '\'s', '\'\'', ' (tm)'), $cockney);
- $static_replacements = array_merge(array('—', ' — ', '–', ' – ', 'xn--', '…', $opening_quote, '’s', $closing_quote, ' ™'), $cockneyreplace);
+ // Transform into regexp sub-expression used in _wptexturize_pushpop_element
+ // Must do this everytime in case plugins use these filters in a context sensitive manner
+ $no_texturize_tags = '(' . implode('|', apply_filters('no_texturize_tags', $default_no_texturize_tags) ) . ')';
+ $no_texturize_shortcodes = '(' . implode('|', apply_filters('no_texturize_shortcodes', $default_no_texturize_shortcodes) ) . ')';
- $dynamic_characters = array('/\'(\d\d(?:’|\')?s)/', '/(\s|\A|")\'/', '/(\d+)"/', '/(\d+)\'/', '/(\S)\'([^\'\s])/', '/(\s|\A)"(?!\s)/', '/"(\s|\S|\Z)/', '/\'([\s.]|\Z)/', '/(\d+)x(\d+)/');
- $dynamic_replacements = array('’$1','$1‘', '$1″', '$1′', '$1’$2', '$1' . $opening_quote . '$2', $closing_quote . '$1', '’$1', '$1×$2');
+ $no_texturize_tags_stack = array();
+ $no_texturize_shortcodes_stack = array();
- for ( $i = 0; $i < $stop; $i++ ) {
- $curl = $textarr[$i];
+ $textarr = preg_split('/(<.*>|\[.*\])/Us', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
- if ( !empty($curl) && '<' != $curl{0} && '[' != $curl{0}
- && empty($no_texturize_shortcodes_stack) && empty($no_texturize_tags_stack)) { // If it's not a tag
- // static strings
+ foreach ( $textarr as &$curl ) {
+ if ( empty( $curl ) )
+ continue;
+
+ // Only call _wptexturize_pushpop_element if first char is correct tag opening
+ $first = $curl[0];
+ if ( '<' === $first ) {
+ _wptexturize_pushpop_element($curl, $no_texturize_tags_stack, $no_texturize_tags, '<', '>');
+ } elseif ( '[' === $first ) {
+ _wptexturize_pushpop_element($curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes, '[', ']');
+ } elseif ( empty($no_texturize_shortcodes_stack) && empty($no_texturize_tags_stack) ) {
+ // This is not a tag, nor is the texturization disabled static strings
$curl = str_replace($static_characters, $static_replacements, $curl);
// regular expressions
$curl = preg_replace($dynamic_characters, $dynamic_replacements, $curl);
- } else {
- wptexturize_pushpop_element($curl, $no_texturize_tags_stack, $no_texturize_tags, '<', '>');
- wptexturize_pushpop_element($curl, $no_texturize_shortcodes_stack, $no_texturize_shortcodes, '[', ']');
}
-
$curl = preg_replace('/&([^#])(?![a-zA-Z1-4]{1,8};)/', '&$1', $curl);
- $output .= $curl;
}
-
- return $output;
+ return implode( '', $textarr );
}
-function wptexturize_pushpop_element($text, &$stack, $disabled_elements, $opening = '<', $closing = '>') {
- $o = preg_quote($opening, '/');
- $c = preg_quote($closing, '/');
- foreach($disabled_elements as $element) {
- if (preg_match('/^'.$o.$element.'\b/', $text)) array_push($stack, $element);
- if (preg_match('/^'.$o.'\/'.$element.$c.'/', $text)) {
+/**
+ * Search for disabled element tags. Push element to stack on tag open and pop
+ * on tag close. Assumes first character of $text is tag opening.
+ *
+ * @access private
+ * @since 2.9.0
+ *
+ * @param string $text Text to check. First character is assumed to be $opening
+ * @param array $stack Array used as stack of opened tag elements
+ * @param string $disabled_elements Tags to match against formatted as regexp sub-expression
+ * @param string $opening Tag opening character, assumed to be 1 character long
+ * @param string $opening Tag closing character
+ * @return object
+ */
+function _wptexturize_pushpop_element($text, &$stack, $disabled_elements, $opening = '<', $closing = '>') {
+ // Check if it is a closing tag -- otherwise assume opening tag
+ if (strncmp($opening . '/', $text, 2)) {
+ // Opening? Check $text+1 against disabled elements
+ if (preg_match('/^' . $disabled_elements . '\b/', substr($text, 1), $matches)) {
+ /*
+ * This disables texturize until we find a closing tag of our type
+ * (e.g. <pre>) even if there was invalid nesting before that
+ *
+ * Example: in the case <pre>sadsadasd</code>"baba"</pre>
+ * "baba" won't be texturize
+ */
+
+ array_push($stack, $matches[1]);
+ }
+ } else {
+ // Closing? Check $text+2 against disabled elements
+ $c = preg_quote($closing, '/');
+ if (preg_match('/^' . $disabled_elements . $c . '/', substr($text, 2), $matches)) {
$last = array_pop($stack);
- // disable texturize until we find a closing tag of our type (e.g. <pre>)
- // even if there was invalid nesting before that
- // Example: in the case <pre>sadsadasd</code>"baba"</pre> "baba" won't be texturized
- if ($last != $element) array_push($stack, $last);
+
+ // Make sure it matches the opening tag
+ if ($last != $matches[1])
+ array_push($stack, $last);
}
}
}
* @return string Text which has been converted into correct paragraph tags.
*/
function wpautop($pee, $br = 1) {
+
if ( trim($pee) === '' )
return '';
$pee = $pee . "\n"; // just to make things a little easier, pad the end
$pee = preg_replace('|<br />\s*<br />|', "\n\n", $pee);
// Space things out a little
- $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr)';
+ $allblocks = '(?:table|thead|tfoot|caption|col|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|option|form|map|area|blockquote|address|math|style|input|p|h[1-6]|hr|fieldset|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)';
$pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee);
$pee = preg_replace('!(</' . $allblocks . '>)!', "$1\n\n", $pee);
$pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines
$pee = preg_replace('!<p>\s*(</?' . $allblocks . '[^>]*>)!', "$1", $pee);
$pee = preg_replace('!(</?' . $allblocks . '[^>]*>)\s*</p>!', "$1", $pee);
if ($br) {
- $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', create_function('$matches', 'return str_replace("\n", "<WPPreserveNewline />", $matches[0]);'), $pee);
+ $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee);
$pee = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $pee); // optionally make line breaks
$pee = str_replace('<WPPreserveNewline />', "\n", $pee);
}
if (strpos($pee, '<pre') !== false)
$pee = preg_replace_callback('!(<pre[^>]*>)(.*?)</pre>!is', 'clean_pre', $pee );
$pee = preg_replace( "|\n</p>$|", '</p>', $pee );
- $pee = preg_replace('/<p>\s*?(' . get_shortcode_regex() . ')\s*<\/p>/s', '$1', $pee); // don't auto-p wrap shortcodes that stand alone
return $pee;
}
+/**
+ * Newline preservation help function for wpautop
+ *
+ * @since 3.1.0
+ * @access private
+ * @param array $matches preg_replace_callback matches array
+ * @returns string
+ */
+function _autop_newline_preservation_helper( $matches ) {
+ return str_replace("\n", "<WPPreserveNewline />", $matches[0]);
+}
+
+/**
+ * Don't auto-p wrap shortcodes that stand alone
+ *
+ * Ensures that shortcodes are not wrapped in <<p>>...<</p>>.
+ *
+ * @since 2.9.0
+ *
+ * @param string $pee The content.
+ * @return string The filtered content.
+ */
+function shortcode_unautop( $pee ) {
+ global $shortcode_tags;
+
+ if ( empty( $shortcode_tags ) || !is_array( $shortcode_tags ) ) {
+ return $pee;
+ }
+
+ $tagregexp = join( '|', array_map( 'preg_quote', array_keys( $shortcode_tags ) ) );
+
+ $pattern =
+ '/'
+ . '<p>' // Opening paragraph
+ . '\\s*+' // Optional leading whitespace
+ . '(' // 1: The shortcode
+ . '\\[' // Opening bracket
+ . "($tagregexp)" // 2: Shortcode name
+ . '\\b' // Word boundary
+ // Unroll the loop: Inside the opening shortcode tag
+ . '[^\\]\\/]*' // Not a closing bracket or forward slash
+ . '(?:'
+ . '\\/(?!\\])' // A forward slash not followed by a closing bracket
+ . '[^\\]\\/]*' // Not a closing bracket or forward slash
+ . ')*?'
+ . '(?:'
+ . '\\/\\]' // Self closing tag and closing bracket
+ . '|'
+ . '\\]' // Closing bracket
+ . '(?:' // Unroll the loop: Optionally, anything between the opening and closing shortcode tags
+ . '[^\\[]*+' // Not an opening bracket
+ . '(?:'
+ . '\\[(?!\\/\\2\\])' // An opening bracket not followed by the closing shortcode tag
+ . '[^\\[]*+' // Not an opening bracket
+ . ')*+'
+ . '\\[\\/\\2\\]' // Closing shortcode tag
+ . ')?'
+ . ')'
+ . ')'
+ . '\\s*+' // optional trailing whitespace
+ . '<\\/p>' // closing paragraph
+ . '/s';
+
+ return preg_replace( $pattern, '$1', $pee );
+}
+
/**
* Checks to see if a string is utf8 encoded.
*
* @param string $string The text which is to be encoded.
* @param mixed $quote_style Optional. Converts double quotes if set to ENT_COMPAT, both single and double if set to ENT_QUOTES or none if set to ENT_NOQUOTES. Also compatible with old values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES.
* @param string $charset Optional. The character encoding of the string. Default is false.
- * @param boolean $double_encode Optional. Whether or not to encode existing html entities. Default is false.
+ * @param boolean $double_encode Optional. Whether to encode existing html entities. Default is false.
* @return string The encoded text with HTML entities.
*/
function _wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
$string = (string) $string;
- if ( 0 === strlen( $string ) ) {
+ if ( 0 === strlen( $string ) )
return '';
- }
// Don't bother if there are no specialchars - saves some processing
- if ( !preg_match( '/[&<>"\']/', $string ) ) {
+ if ( ! preg_match( '/[&<>"\']/', $string ) )
return $string;
- }
// Account for the previous behaviour of the function when the $quote_style is not an accepted value
- if ( empty( $quote_style ) ) {
+ if ( empty( $quote_style ) )
$quote_style = ENT_NOQUOTES;
- } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) {
+ elseif ( ! in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) )
$quote_style = ENT_QUOTES;
- }
// Store the site charset as a static to avoid multiple calls to wp_load_alloptions()
- if ( !$charset ) {
+ if ( ! $charset ) {
static $_charset;
- if ( !isset( $_charset ) ) {
+ if ( ! isset( $_charset ) ) {
$alloptions = wp_load_alloptions();
$_charset = isset( $alloptions['blog_charset'] ) ? $alloptions['blog_charset'] : '';
}
$charset = $_charset;
}
- if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) ) {
+
+ if ( in_array( $charset, array( 'utf8', 'utf-8', 'UTF8' ) ) )
$charset = 'UTF-8';
- }
$_quote_style = $quote_style;
}
// Handle double encoding ourselves
- if ( !$double_encode ) {
+ if ( $double_encode ) {
+ $string = @htmlspecialchars( $string, $quote_style, $charset );
+ } else {
+ // Decode & into &
$string = wp_specialchars_decode( $string, $_quote_style );
- $string = preg_replace( '/&(#?x?[0-9a-z]+);/i', '|wp_entity|$1|/wp_entity|', $string );
- }
- $string = @htmlspecialchars( $string, $quote_style, $charset );
+ // Guarantee every &entity; is valid or re-encode the &
+ $string = wp_kses_normalize_entities( $string );
- // Handle double encoding ourselves
- if ( !$double_encode ) {
- $string = str_replace( array( '|wp_entity|', '|/wp_entity|' ), array( '&', ';' ), $string );
+ // Now re-encode everything except &entity;
+ $string = preg_split( '/(&#?x?[0-9a-z]+;)/i', $string, -1, PREG_SPLIT_DELIM_CAPTURE );
+
+ for ( $i = 0; $i < count( $string ); $i += 2 )
+ $string[$i] = @htmlspecialchars( $string[$i], $quote_style, $charset );
+
+ $string = implode( '', $string );
}
// Backwards compatibility
- if ( 'single' === $_quote_style ) {
+ if ( 'single' === $_quote_style )
$string = str_replace( "'", ''', $string );
- }
return $string;
}
if (seems_utf8($string)) {
$chars = array(
// Decompositions for Latin-1 Supplement
+ chr(194).chr(170) => 'a', chr(194).chr(186) => 'o',
chr(195).chr(128) => 'A', chr(195).chr(129) => 'A',
chr(195).chr(130) => 'A', chr(195).chr(131) => 'A',
chr(195).chr(132) => 'A', chr(195).chr(133) => 'A',
- chr(195).chr(135) => 'C', chr(195).chr(136) => 'E',
- chr(195).chr(137) => 'E', chr(195).chr(138) => 'E',
- chr(195).chr(139) => 'E', chr(195).chr(140) => 'I',
- chr(195).chr(141) => 'I', chr(195).chr(142) => 'I',
- chr(195).chr(143) => 'I', chr(195).chr(145) => 'N',
+ chr(195).chr(134) => 'AE',chr(195).chr(135) => 'C',
+ chr(195).chr(136) => 'E', chr(195).chr(137) => 'E',
+ chr(195).chr(138) => 'E', chr(195).chr(139) => 'E',
+ chr(195).chr(140) => 'I', chr(195).chr(141) => 'I',
+ chr(195).chr(142) => 'I', chr(195).chr(143) => 'I',
+ chr(195).chr(144) => 'D', chr(195).chr(145) => 'N',
chr(195).chr(146) => 'O', chr(195).chr(147) => 'O',
chr(195).chr(148) => 'O', chr(195).chr(149) => 'O',
chr(195).chr(150) => 'O', chr(195).chr(153) => 'U',
chr(195).chr(154) => 'U', chr(195).chr(155) => 'U',
chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y',
- chr(195).chr(159) => 's', chr(195).chr(160) => 'a',
- chr(195).chr(161) => 'a', chr(195).chr(162) => 'a',
- chr(195).chr(163) => 'a', chr(195).chr(164) => 'a',
- chr(195).chr(165) => 'a', chr(195).chr(167) => 'c',
+ chr(195).chr(158) => 'TH',chr(195).chr(159) => 's',
+ chr(195).chr(160) => 'a', chr(195).chr(161) => 'a',
+ chr(195).chr(162) => 'a', chr(195).chr(163) => 'a',
+ chr(195).chr(164) => 'a', chr(195).chr(165) => 'a',
+ chr(195).chr(166) => 'ae',chr(195).chr(167) => 'c',
chr(195).chr(168) => 'e', chr(195).chr(169) => 'e',
chr(195).chr(170) => 'e', chr(195).chr(171) => 'e',
chr(195).chr(172) => 'i', chr(195).chr(173) => 'i',
chr(195).chr(174) => 'i', chr(195).chr(175) => 'i',
- chr(195).chr(177) => 'n', chr(195).chr(178) => 'o',
- chr(195).chr(179) => 'o', chr(195).chr(180) => 'o',
- chr(195).chr(181) => 'o', chr(195).chr(182) => 'o',
- chr(195).chr(182) => 'o', chr(195).chr(185) => 'u',
- chr(195).chr(186) => 'u', chr(195).chr(187) => 'u',
- chr(195).chr(188) => 'u', chr(195).chr(189) => 'y',
- chr(195).chr(191) => 'y',
+ chr(195).chr(176) => 'd', chr(195).chr(177) => 'n',
+ chr(195).chr(178) => 'o', chr(195).chr(179) => 'o',
+ chr(195).chr(180) => 'o', chr(195).chr(181) => 'o',
+ chr(195).chr(182) => 'o', chr(195).chr(184) => 'o',
+ chr(195).chr(185) => 'u', chr(195).chr(186) => 'u',
+ chr(195).chr(187) => 'u', chr(195).chr(188) => 'u',
+ chr(195).chr(189) => 'y', chr(195).chr(190) => 'th',
+ chr(195).chr(191) => 'y', chr(195).chr(152) => 'O',
// Decompositions for Latin Extended-A
chr(196).chr(128) => 'A', chr(196).chr(129) => 'a',
chr(196).chr(130) => 'A', chr(196).chr(131) => 'a',
chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z',
chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z',
chr(197).chr(190) => 'z', chr(197).chr(191) => 's',
+ // Decompositions for Latin Extended-B
+ chr(200).chr(152) => 'S', chr(200).chr(153) => 's',
+ chr(200).chr(154) => 'T', chr(200).chr(155) => 't',
// Euro Sign
chr(226).chr(130).chr(172) => 'E',
// GBP (Pound) Sign
*/
function sanitize_file_name( $filename ) {
$filename_raw = $filename;
- $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}");
+ $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0));
$special_chars = apply_filters('sanitize_file_name_chars', $special_chars, $filename_raw);
$filename = str_replace($special_chars, '', $filename);
$filename = preg_replace('/[\s-]+/', '-', $filename);
$filename = trim($filename, '.-_');
+
+ // Split the filename into a base and extension[s]
+ $parts = explode('.', $filename);
+
+ // Return if only one extension
+ if ( count($parts) <= 2 )
+ return apply_filters('sanitize_file_name', $filename, $filename_raw);
+
+ // Process multiple extensions
+ $filename = array_shift($parts);
+ $extension = array_pop($parts);
+ $mimes = get_allowed_mime_types();
+
+ // Loop over any intermediate extensions. Munge them with a trailing underscore if they are a 2 - 5 character
+ // long alpha string not in the extension whitelist.
+ foreach ( (array) $parts as $part) {
+ $filename .= '.' . $part;
+
+ if ( preg_match("/^[a-zA-Z]{2,5}\d?$/", $part) ) {
+ $allowed = false;
+ foreach ( $mimes as $ext_preg => $mime_match ) {
+ $ext_preg = '!^(' . $ext_preg . ')$!i';
+ if ( preg_match( $ext_preg, $part ) ) {
+ $allowed = true;
+ break;
+ }
+ }
+ if ( !$allowed )
+ $filename .= '_';
+ }
+ }
+ $filename .= '.' . $extension;
+
return apply_filters('sanitize_file_name', $filename, $filename_raw);
}
/**
* Sanitize username stripping out unsafe characters.
*
- * If $strict is true, only alphanumeric characters (as well as _, space, ., -,
- * @) are returned.
- * Removes tags, octets, entities, and if strict is enabled, will remove all
- * non-ASCII characters. After sanitizing, it passes the username, raw username
- * (the username in the parameter), and the strict parameter as parameters for
- * the filter.
+ * Removes tags, octets, entities, and if strict is enabled, will only keep
+ * alphanumeric, _, space, ., -, @. After sanitizing, it passes the username,
+ * raw username (the username in the parameter), and the value of $strict as
+ * parameters for the 'sanitize_user' filter.
*
* @since 2.0.0
* @uses apply_filters() Calls 'sanitize_user' hook on username, raw username,
*/
function sanitize_user( $username, $strict = false ) {
$raw_username = $username;
- $username = strip_tags($username);
+ $username = wp_strip_all_tags( $username );
+ $username = remove_accents( $username );
// Kill octets
- $username = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '', $username);
- $username = preg_replace('/&.+?;/', '', $username); // Kill entities
+ $username = preg_replace( '|%([a-fA-F0-9][a-fA-F0-9])|', '', $username );
+ $username = preg_replace( '/&.+?;/', '', $username ); // Kill entities
// If strict, reduce to ASCII for max portability.
if ( $strict )
- $username = preg_replace('|[^a-z0-9 _.\-@]|i', '', $username);
+ $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username );
+ $username = trim( $username );
// Consolidate contiguous whitespace
- $username = preg_replace('|\s+|', ' ', $username);
+ $username = preg_replace( '|\s+|', ' ', $username );
- return apply_filters('sanitize_user', $username, $raw_username, $strict);
+ return apply_filters( 'sanitize_user', $username, $raw_username, $strict );
+}
+
+/**
+ * Sanitize a string key.
+ *
+ * Keys are used as internal identifiers. Lowercase alphanumeric characters, dashes and underscores are allowed.
+ *
+ * @since 3.0.0
+ *
+ * @param string $key String key
+ * @return string Sanitized key
+ */
+function sanitize_key( $key ) {
+ $raw_key = $key;
+ $key = strtolower( $key );
+ $key = preg_replace( '/[^a-z0-9_\-]/', '', $key );
+ return apply_filters( 'sanitize_key', $key, $raw_key );
}
/**
*
* @param string $title The string to be sanitized.
* @param string $fallback_title Optional. A title to use if $title is empty.
+ * @param string $context Optional. The operation for which the string is sanitized
* @return string The sanitized string.
*/
-function sanitize_title($title, $fallback_title = '') {
+function sanitize_title($title, $fallback_title = '', $context = 'save') {
$raw_title = $title;
- $title = strip_tags($title);
- $title = apply_filters('sanitize_title', $title, $raw_title);
+
+ if ( 'save' == $context )
+ $title = remove_accents($title);
+
+ $title = apply_filters('sanitize_title', $title, $raw_title, $context);
if ( '' === $title || false === $title )
$title = $fallback_title;
return $title;
}
+function sanitize_title_for_query($title) {
+ return sanitize_title($title, '', 'query');
+}
+
/**
- * Sanitizes title, replacing whitespace with dashes.
+ * Sanitizes title, replacing whitespace and a few other characters with dashes.
*
* Limits the output to alphanumeric characters, underscore (_) and dash (-).
* Whitespace becomes a dash.
* @since 1.2.0
*
* @param string $title The title to be sanitized.
+ * @param string $raw_title Optional. Not used.
+ * @param string $context Optional. The operation for which the string is sanitized.
* @return string The sanitized title.
*/
-function sanitize_title_with_dashes($title) {
+function sanitize_title_with_dashes($title, $raw_title = '', $context = 'display') {
$title = strip_tags($title);
// Preserve escaped octets.
$title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title);
// Restore octets.
$title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title);
- $title = remove_accents($title);
if (seems_utf8($title)) {
if (function_exists('mb_strtolower')) {
$title = mb_strtolower($title, 'UTF-8');
$title = strtolower($title);
$title = preg_replace('/&.+?;/', '', $title); // kill entities
$title = str_replace('.', '-', $title);
+
+ if ( 'save' == $context ) {
+ // nbsp, ndash and mdash
+ $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title );
+ // iexcl and iquest
+ $title = str_replace( array( '%c2%a1', '%c2%bf' ), '', $title );
+ // angle quotes
+ $title = str_replace( array( '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba' ), '', $title );
+ // curly quotes
+ $title = str_replace( array( '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d' ), '', $title );
+ // copy, reg, deg, hellip and trade
+ $title = str_replace( array( '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2' ), '', $title );
+ }
+
$title = preg_replace('/[^%a-z0-9 _-]/', '', $title);
$title = preg_replace('/\s+/', '-', $title);
$title = preg_replace('|-+|', '-', $title);
/**
* Santizes a html classname to ensure it only contains valid characters
*
- * Strips the string down to A-Z,a-z,0-9,'-' if this results in an empty
+ * Strips the string down to A-Z,a-z,0-9,_,-. If this results in an empty
* string then it will return the alternative value supplied.
*
* @todo Expand to support the full range of CDATA that a class attribute can contain.
* @since 2.8.0
*
* @param string $class The classname to be sanitized
- * @param string $fallback The value to return if the sanitization end's up as an empty string.
+ * @param string $fallback Optional. The value to return if the sanitization end's up as an empty string.
+ * Defaults to an empty string.
* @return string The sanitized value
*/
-function sanitize_html_class($class, $fallback){
+function sanitize_html_class( $class, $fallback = '' ) {
//Strip out any % encoded octets
- $sanitized = preg_replace('|%[a-fA-F0-9][a-fA-F0-9]|', '', $class);
+ $sanitized = preg_replace( '|%[a-fA-F0-9][a-fA-F0-9]|', '', $class );
- //Limit to A-Z,a-z,0-9,'-'
- $sanitized = preg_replace('/[^A-Za-z0-9-]/', '', $sanitized);
+ //Limit to A-Z,a-z,0-9,_,-
+ $sanitized = preg_replace( '/[^A-Za-z0-9_-]/', '', $sanitized );
- if ('' == $sanitized)
+ if ( '' == $sanitized )
$sanitized = $fallback;
- return apply_filters('sanitize_html_class',$sanitized, $class, $fallback);
+ return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback );
}
/**
* @return string Converted string.
*/
function convert_chars($content, $deprecated = '') {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '0.71' );
+
// Translation of invalid Unicode references range to valid range
$wp_htmltranswinuni = array(
'€' => '€', // the Euro sign
return $content;
}
-/**
- * Callback used to change %uXXXX to &#YYY; syntax
- *
- * @since 2.8?
- *
- * @param array $matches Single Match
- * @return string An HTML entity
- */
-function funky_javascript_callback($matches) {
- return "&#".base_convert($matches[1],16,10).";";
-}
-
-/**
- * Fixes javascript bugs in browsers.
- *
- * Converts unicode characters to HTML numbered entities.
- *
- * @since 1.5.0
- * @uses $is_macIE
- * @uses $is_winIE
- *
- * @param string $text Text to be made safe.
- * @return string Fixed text.
- */
-function funky_javascript_fix($text) {
- // Fixes for browsers' javascript bugs
- global $is_macIE, $is_winIE;
-
- if ( $is_winIE || $is_macIE )
- $text = preg_replace_callback("/\%u([0-9A-F]{4,4})/",
- "funky_javascript_callback",
- $text);
-
- return $text;
-}
-
/**
* Will only balance the tags if forced to and the option is set to balance tags.
*
* @since 2.0.4
*
* @author Leonard Lin <leonard@acm.org>
- * @license GPL v2.0
+ * @license GPL
* @copyright November 4, 2001
* @version 1.1
* @todo Make better - change loop condition to $text in 1.2
* @return string Balanced text.
*/
function force_balance_tags( $text ) {
- $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = '';
- $single_tags = array('br', 'hr', 'img', 'input'); //Known single-entity/self-closing tags
- $nestable_tags = array('blockquote', 'div', 'span'); //Tags that can be immediately nested within themselves
-
- # WP bug fix for comments - in case you REALLY meant to type '< !--'
+ $tagstack = array();
+ $stacksize = 0;
+ $tagqueue = '';
+ $newtext = '';
+ $single_tags = array( 'br', 'hr', 'img', 'input' ); // Known single-entity/self-closing tags
+ $nestable_tags = array( 'blockquote', 'div', 'span', 'q' ); // Tags that can be immediately nested within themselves
+
+ // WP bug fix for comments - in case you REALLY meant to type '< !--'
$text = str_replace('< !--', '< !--', $text);
- # WP bug fix for LOVE <3 (and other situations with '<' before a number)
+ // WP bug fix for LOVE <3 (and other situations with '<' before a number)
$text = preg_replace('#<([0-9]{1})#', '<$1', $text);
- while (preg_match("/<(\/?\w*)\s*([^>]*)>/",$text,$regex)) {
+ while ( preg_match("/<(\/?[\w:]*)\s*([^>]*)>/", $text, $regex) ) {
$newtext .= $tagqueue;
- $i = strpos($text,$regex[0]);
+ $i = strpos($text, $regex[0]);
$l = strlen($regex[0]);
// clear the shifter
if ( isset($regex[1][0]) && '/' == $regex[1][0] ) { // End Tag
$tag = strtolower(substr($regex[1],1));
// if too many closing tags
- if($stacksize <= 0) {
+ if( $stacksize <= 0 ) {
$tag = '';
- //or close to be safe $tag = '/' . $tag;
+ // or close to be safe $tag = '/' . $tag;
}
// if stacktop value = tag close value then pop
- else if ($tagstack[$stacksize - 1] == $tag) { // found closing tag
+ else if ( $tagstack[$stacksize - 1] == $tag ) { // found closing tag
$tag = '</' . $tag . '>'; // Close Tag
// Pop
- array_pop ($tagstack);
+ array_pop( $tagstack );
$stacksize--;
} else { // closing tag not at top, search for it
- for ($j=$stacksize-1;$j>=0;$j--) {
- if ($tagstack[$j] == $tag) {
+ for ( $j = $stacksize-1; $j >= 0; $j-- ) {
+ if ( $tagstack[$j] == $tag ) {
// add tag to tagqueue
- for ($k=$stacksize-1;$k>=$j;$k--){
- $tagqueue .= '</' . array_pop ($tagstack) . '>';
+ for ( $k = $stacksize-1; $k >= $j; $k--) {
+ $tagqueue .= '</' . array_pop( $tagstack ) . '>';
$stacksize--;
}
break;
// Tag Cleaning
// If self-closing or '', don't do anything.
- if((substr($regex[2],-1) == '/') || ($tag == '')) {
+ if ( substr($regex[2],-1) == '/' || $tag == '' ) {
+ // do nothing
}
// ElseIf it's a known single-entity tag but it doesn't close itself, do so
elseif ( in_array($tag, $single_tags) ) {
$regex[2] .= '/';
} else { // Push the tag onto the stack
// If the top of the stack is the same as the tag we want to push, close previous tag
- if (($stacksize > 0) && !in_array($tag, $nestable_tags) && ($tagstack[$stacksize - 1] == $tag)) {
+ if ( $stacksize > 0 && !in_array($tag, $nestable_tags) && $tagstack[$stacksize - 1] == $tag ) {
$tagqueue = '</' . array_pop ($tagstack) . '>';
$stacksize--;
}
// Attributes
$attributes = $regex[2];
- if($attributes) {
+ if( !empty($attributes) )
$attributes = ' '.$attributes;
- }
- $tag = '<'.$tag.$attributes.'>';
+
+ $tag = '<' . $tag . $attributes . '>';
//If already queuing a close tag, then put this tag on, too
- if ($tagqueue) {
+ if ( !empty($tagqueue) ) {
$tagqueue .= $tag;
$tag = '';
}
}
- $newtext .= substr($text,0,$i) . $tag;
- $text = substr($text,$i+$l);
+ $newtext .= substr($text, 0, $i) . $tag;
+ $text = substr($text, $i + $l);
}
// Clear Tag Queue
$newtext .= $text;
// Empty Stack
- while($x = array_pop($tagstack)) {
+ while( $x = array_pop($tagstack) )
$newtext .= '</' . $x . '>'; // Add remaining tags to close
- }
// WP fix for the bug with HTML comments
$newtext = str_replace("< !--","<!--",$newtext);
* Acts on text which is about to be edited.
*
* Unless $richedit is set, it is simply a holder for the 'format_to_edit'
- * filter. If $richedit is set true htmlspecialchars() will be run on the
- * content, converting special characters to HTMl entities.
+ * filter. If $richedit is set true htmlspecialchars(), through esc_textarea(),
+ * will be run on the content, converting special characters to HTML entities.
*
* @since 0.71
*
* @param string $content The text about to be edited.
- * @param bool $richedit Whether or not the $content should pass through htmlspecialchars(). Default false.
+ * @param bool $richedit Whether the $content should pass through htmlspecialchars(). Default false.
* @return string The text after the filter (and possibly htmlspecialchars()) has been run.
*/
-function format_to_edit($content, $richedit = false) {
- $content = apply_filters('format_to_edit', $content);
- if (! $richedit )
- $content = htmlspecialchars($content);
+function format_to_edit( $content, $richedit = false ) {
+ $content = apply_filters( 'format_to_edit', $content );
+ if ( ! $richedit )
+ $content = esc_textarea( $content );
return $content;
}
* Add leading zeros when necessary.
*
* If you set the threshold to '4' and the number is '10', then you will get
- * back '0010'. If you set the number to '4' and the number is '5000', then you
+ * back '0010'. If you set the threshold to '4' and the number is '5000', then you
* will get back '5000'.
*
* Uses sprintf to append the amount of zeros based on the $threshold parameter
* @return string Returns a string escaped with slashes.
*/
function addslashes_gpc($gpc) {
- global $wpdb;
-
- if (get_magic_quotes_gpc()) {
+ if ( get_magic_quotes_gpc() )
$gpc = stripslashes($gpc);
- }
- return $wpdb->escape($gpc);
+ return esc_sql($gpc);
}
/**
*
* @since 2.0.0
*
- * @param array|string $value The array or string to be striped.
+ * @param array|string $value The array or string to be stripped.
* @return array|string Stripped array (or string in the callback).
*/
function stripslashes_deep($value) {
- $value = is_array($value) ? array_map('stripslashes_deep', $value) : stripslashes($value);
+ if ( is_array($value) ) {
+ $value = array_map('stripslashes_deep', $value);
+ } elseif ( is_object($value) ) {
+ $vars = get_object_vars( $value );
+ foreach ($vars as $key=>$data) {
+ $value->{$key} = stripslashes_deep( $data );
+ }
+ } else {
+ $value = stripslashes($value);
+ }
+
return $value;
}
*/
function _make_url_clickable_cb($matches) {
$url = $matches[2];
+
+ if ( ')' == $matches[3] && strpos( $url, '(' ) ) {
+ // If the trailing character is a closing parethesis, and the URL has an opening parenthesis in it, add the closing parenthesis to the URL.
+ // Then we can let the parenthesis balancer do its thing below.
+ $url .= $matches[3];
+ $suffix = '';
+ } else {
+ $suffix = $matches[3];
+ }
+
+ // Include parentheses in the URL only if paired
+ while ( substr_count( $url, '(' ) < substr_count( $url, ')' ) ) {
+ $suffix = strrchr( $url, ')' ) . $suffix;
+ $url = substr( $url, 0, strrpos( $url, ')' ) );
+ }
+
$url = esc_url($url);
if ( empty($url) )
return $matches[0];
- return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>";
+
+ return $matches[1] . "<a href=\"$url\" rel=\"nofollow\">$url</a>" . $suffix;
}
/**
$dest = esc_url($dest);
if ( empty($dest) )
return $matches[0];
- // removed trailing [,;:] from URL
- if ( in_array(substr($dest, -1), array('.', ',', ';', ':')) === true ) {
+
+ // removed trailing [.,;:)] from URL
+ if ( in_array( substr($dest, -1), array('.', ',', ';', ':', ')') ) === true ) {
$ret = substr($dest, -1);
$dest = substr($dest, 0, strlen($dest)-1);
}
- return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>" . $ret;
+ return $matches[1] . "<a href=\"$dest\" rel=\"nofollow\">$dest</a>$ret";
}
/**
*
* @since 0.71
*
- * @param string $ret Content to convert URIs.
+ * @param string $text Content to convert URIs.
* @return string Content with converted URIs.
*/
-function make_clickable($ret) {
- $ret = ' ' . $ret;
- // in testing, using arrays here was found to be faster
- $ret = preg_replace_callback('#(?<=[\s>])(\()?([\w]+?://(?:[\w\\x80-\\xff\#$%&~/\-=?@\[\](+]|[.,;:](?![\s<])|(?(1)\)(?![\s<])|\)))+)#is', '_make_url_clickable_cb', $ret);
- $ret = preg_replace_callback('#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret);
- $ret = preg_replace_callback('#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret);
- // this one is not in an array because we need it to run last, for cleanup of accidental links within links
- $ret = preg_replace("#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i", "$1$3</a>", $ret);
- $ret = trim($ret);
- return $ret;
+function make_clickable( $text ) {
+ $r = '';
+ $textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags
+ foreach ( $textarr as $piece ) {
+ if ( empty( $piece ) || ( $piece[0] == '<' && ! preg_match('|^<\s*[\w]{1,20}+://|', $piece) ) ) {
+ $r .= $piece;
+ continue;
+ }
+
+ // Long strings might contain expensive edge cases ...
+ if ( 10000 < strlen( $piece ) ) {
+ // ... break it up
+ foreach ( _split_str_by_whitespace( $piece, 2100 ) as $chunk ) { // 2100: Extra room for scheme and leading and trailing paretheses
+ if ( 2101 < strlen( $chunk ) ) {
+ $r .= $chunk; // Too big, no whitespace: bail.
+ } else {
+ $r .= make_clickable( $chunk );
+ }
+ }
+ } else {
+ $ret = " $piece "; // Pad with whitespace to simplify the regexes
+
+ $url_clickable = '~
+ ([\\s(<.,;:!?]) # 1: Leading whitespace, or punctuation
+ ( # 2: URL
+ [\\w]{1,20}+:// # Scheme and hier-part prefix
+ (?=\S{1,2000}\s) # Limit to URLs less than about 2000 characters long
+ [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]*+ # Non-punctuation URL character
+ (?: # Unroll the Loop: Only allow puctuation URL character if followed by a non-punctuation URL character
+ [\'.,;:!?)] # Punctuation URL character
+ [\\w\\x80-\\xff#%\\~/@\\[\\]*(+=&$-]++ # Non-punctuation URL character
+ )*
+ )
+ (\)?) # 3: Trailing closing parenthesis (for parethesis balancing post processing)
+ ~xS'; // The regex is a non-anchored pattern and does not have a single fixed starting character.
+ // Tell PCRE to spend more time optimizing since, when used on a page load, it will probably be used several times.
+
+ $ret = preg_replace_callback( $url_clickable, '_make_url_clickable_cb', $ret );
+
+ $ret = preg_replace_callback( '#([\s>])((www|ftp)\.[\w\\x80-\\xff\#$%&~/.\-;:=,?@\[\]+]+)#is', '_make_web_ftp_clickable_cb', $ret );
+ $ret = preg_replace_callback( '#([\s>])([.0-9a-z_+-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,})#i', '_make_email_clickable_cb', $ret );
+
+ $ret = substr( $ret, 1, -1 ); // Remove our whitespace padding.
+ $r .= $ret;
+ }
+ }
+
+ // Cleanup of accidental links within links
+ $r = preg_replace( '#(<a( [^>]+?>|>))<a [^>]+?>([^>]+?)</a></a>#i', "$1$3</a>", $r );
+ return $r;
+}
+
+/**
+ * Breaks a string into chunks by splitting at whitespace characters.
+ * The length of each returned chunk is as close to the specified length goal as possible,
+ * with the caveat that each chunk includes its trailing delimiter.
+ * Chunks longer than the goal are guaranteed to not have any inner whitespace.
+ *
+ * Joining the returned chunks with empty delimiters reconstructs the input string losslessly.
+ *
+ * Input string must have no null characters (or eventual transformations on output chunks must not care about null characters)
+ *
+ * <code>
+ * _split_str_by_whitespace( "1234 67890 1234 67890a cd 1234 890 123456789 1234567890a 45678 1 3 5 7 90 ", 10 ) ==
+ * array (
+ * 0 => '1234 67890 ', // 11 characters: Perfect split
+ * 1 => '1234 ', // 5 characters: '1234 67890a' was too long
+ * 2 => '67890a cd ', // 10 characters: '67890a cd 1234' was too long
+ * 3 => '1234 890 ', // 11 characters: Perfect split
+ * 4 => '123456789 ', // 10 characters: '123456789 1234567890a' was too long
+ * 5 => '1234567890a ', // 12 characters: Too long, but no inner whitespace on which to split
+ * 6 => ' 45678 ', // 11 characters: Perfect split
+ * 7 => '1 3 5 7 9', // 9 characters: End of $string
+ * );
+ * </code>
+ *
+ * @since 3.4.0
+ * @access private
+ *
+ * @param string $string The string to split
+ * @param int $goal The desired chunk length.
+ * @return array Numeric array of chunks.
+ */
+function _split_str_by_whitespace( $string, $goal ) {
+ $chunks = array();
+
+ $string_nullspace = strtr( $string, "\r\n\t\v\f ", "\000\000\000\000\000\000" );
+
+ while ( $goal < strlen( $string_nullspace ) ) {
+ $pos = strrpos( substr( $string_nullspace, 0, $goal + 1 ), "\000" );
+
+ if ( false === $pos ) {
+ $pos = strpos( $string_nullspace, "\000", $goal + 1 );
+ if ( false === $pos ) {
+ break;
+ }
+ }
+
+ $chunks[] = substr( $string, 0, $pos + 1 );
+ $string = substr( $string, $pos + 1 );
+ $string_nullspace = substr( $string_nullspace, $pos + 1 );
+ }
+
+ if ( $string ) {
+ $chunks[] = $string;
+ }
+
+ return $chunks;
}
/**
* @return string Converted content.
*/
function wp_rel_nofollow( $text ) {
- global $wpdb;
// This is a pre save filter, so text is already escaped.
$text = stripslashes($text);
$text = preg_replace_callback('|<a (.+?)>|i', 'wp_rel_nofollow_callback', $text);
- $text = $wpdb->escape($text);
+ $text = esc_sql($text);
return $text;
}
return "<a $text rel=\"nofollow\">";
}
-
/**
* Convert one smiley code to the icon graphic file equivalent.
*
return '';
}
- $siteurl = get_option( 'siteurl' );
-
$smiley = trim(reset($smiley));
$img = $wpsmiliestrans[$smiley];
$smiley_masked = esc_attr($smiley);
- return " <img src='$siteurl/wp-includes/images/smilies/$img' alt='$smiley_masked' class='wp-smiley' /> ";
-}
+ $srcurl = apply_filters('smilies_src', includes_url("images/smilies/$img"), $img, site_url());
+ return " <img src='$srcurl' alt='$smiley_masked' class='wp-smiley' /> ";
+}
/**
* Convert text equivalent of smilies to images.
$stop = count($textarr);// loop stuff
for ($i = 0; $i < $stop; $i++) {
$content = $textarr[$i];
- if ((strlen($content) > 0) && ('<' != $content{0})) { // If it's not a tag
+ if ((strlen($content) > 0) && ('<' != $content[0])) { // If it's not a tag
$content = preg_replace_callback($wp_smiliessearch, 'translate_smiley', $content);
}
$output .= $content;
* @since 0.71
*
* @param string $email Email address to verify.
- * @param boolean $check_dns Whether to check the DNS for the domain using checkdnsrr().
+ * @param boolean $deprecated Deprecated.
* @return string|bool Either false or the valid email address.
*/
-function is_email( $email, $check_dns = false ) {
+function is_email( $email, $deprecated = false ) {
+ if ( ! empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '3.0' );
+
// Test for the minimum length the email can be
if ( strlen( $email ) < 3 ) {
return apply_filters( 'is_email', false, $email, 'email_too_short' );
}
}
- // DNS
- // Check the domain has a valid MX and A resource record
- if ( $check_dns && function_exists( 'checkdnsrr' ) && !( checkdnsrr( $domain . '.', 'MX' ) || checkdnsrr( $domain . '.', 'A' ) ) ) {
- return apply_filters( 'is_email', false, $email, 'dns_no_rr' );
- }
-
// Congratulations your email made it!
return apply_filters( 'is_email', $email, $email, null );
}
return $string;
} else {
$subject = str_replace('_', ' ', $matches[2]);
- $subject = preg_replace_callback('#\=([0-9a-f]{2})#i', create_function('$match', 'return chr(hexdec(strtolower($match[1])));'), $subject);
+ $subject = preg_replace_callback('#\=([0-9a-f]{2})#i', '_wp_iso_convert', $subject);
return $subject;
}
}
+/**
+ * Helper function to convert hex encoded chars to ascii
+ *
+ * @since 3.1.0
+ * @access private
+ * @param array $match the preg_replace_callback matches array
+ */
+function _wp_iso_convert( $match ) {
+ return chr( hexdec( strtolower( $match[1] ) ) );
+}
+
/**
* Returns a date in the GMT equivalent.
*
* Requires and returns a date in the Y-m-d H:i:s format. Simply subtracts the
- * value of the 'gmt_offset' option.
+ * value of the 'gmt_offset' option. Return format can be overridden using the
+ * $format parameter. The DateTime and DateTimeZone classes are used to respect
+ * time zone differences in DST.
*
* @since 1.2.0
*
* @uses get_option() to retrieve the the value of 'gmt_offset'.
* @param string $string The date to be converted.
+ * @param string $format The format string for the returned date (default is Y-m-d H:i:s)
* @return string GMT version of the date provided.
*/
-function get_gmt_from_date($string) {
+function get_gmt_from_date($string, $format = 'Y-m-d H:i:s') {
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
- $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
- $string_gmt = gmdate('Y-m-d H:i:s', $string_time - get_option('gmt_offset') * 3600);
+ $tz = get_option('timezone_string');
+ if ( $tz ) {
+ date_default_timezone_set( $tz );
+ $datetime = new DateTime( $string );
+ $datetime->setTimezone( new DateTimeZone('UTC') );
+ $offset = $datetime->getOffset();
+ $datetime->modify( '+' . $offset / 3600 . ' hours');
+ $string_gmt = gmdate($format, $datetime->format('U'));
+
+ date_default_timezone_set('UTC');
+ } else {
+ $string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
+ $string_gmt = gmdate($format, $string_time - get_option('gmt_offset') * 3600);
+ }
return $string_gmt;
}
* Converts a GMT date into the correct format for the blog.
*
* Requires and returns in the Y-m-d H:i:s format. Simply adds the value of
- * gmt_offset.
+ * gmt_offset.Return format can be overridden using the $format parameter
*
* @since 1.2.0
*
* @param string $string The date to be converted.
+ * @param string $format The format string for the returned date (default is Y-m-d H:i:s)
* @return string Formatted date relative to the GMT offset.
*/
-function get_date_from_gmt($string) {
+function get_date_from_gmt($string, $format = 'Y-m-d H:i:s') {
preg_match('#([0-9]{1,4})-([0-9]{1,2})-([0-9]{1,2}) ([0-9]{1,2}):([0-9]{1,2}):([0-9]{1,2})#', $string, $matches);
$string_time = gmmktime($matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1]);
- $string_localtime = gmdate('Y-m-d H:i:s', $string_time + get_option('gmt_offset')*3600);
+ $string_localtime = gmdate($format, $string_time + get_option('gmt_offset')*3600);
return $string_localtime;
}
$sub = trim( $sub, " \t\n\r\0\x0B-" );
// Test for invalid characters
- $sub = preg_replace( '/^[^a-z0-9-]+$/i', '', $sub );
+ $sub = preg_replace( '/[^a-z0-9-]+/i', '', $sub );
// If there's anything left, add it to the valid subs
if ( '' !== $sub ) {
if ($mins <= 1) {
$mins = 1;
}
+ /* translators: min=minute */
$since = sprintf(_n('%s min', '%s mins', $mins), $mins);
} else if (($diff <= 86400) && ($diff > 3600)) {
$hours = round($diff / 3600);
* Generates an excerpt from the content, if needed.
*
* The excerpt word amount will be 55 words and if the amount is greater than
- * that, then the string '[...]' will be appended to the excerpt. If the string
+ * that, then the string ' [...]' will be appended to the excerpt. If the string
* is less than 55 words, then the content will be returned as is.
*
+ * The 55 word limit can be modified by plugins/themes using the excerpt_length filter
+ * The ' [...]' string can be modified by plugins/themes using the excerpt_more filter
+ *
* @since 1.5.0
*
- * @param string $text The exerpt. If set to empty an excerpt is generated.
+ * @param string $text Optional. The excerpt. If set to empty, an excerpt is generated.
* @return string The excerpt.
*/
-function wp_trim_excerpt($text) {
+function wp_trim_excerpt($text = '') {
$raw_excerpt = $text;
if ( '' == $text ) {
$text = get_the_content('');
$text = apply_filters('the_content', $text);
$text = str_replace(']]>', ']]>', $text);
- $text = strip_tags($text);
$excerpt_length = apply_filters('excerpt_length', 55);
- $words = explode(' ', $text, $excerpt_length + 1);
- if (count($words) > $excerpt_length) {
- array_pop($words);
- array_push($words, '[...]');
- $text = implode(' ', $words);
- }
+ $excerpt_more = apply_filters('excerpt_more', ' ' . '[...]');
+ $text = wp_trim_words( $text, $excerpt_length, $excerpt_more );
}
return apply_filters('wp_trim_excerpt', $text, $raw_excerpt);
}
+/**
+ * Trims text to a certain number of words.
+ *
+ * @since 3.3.0
+ *
+ * @param string $text Text to trim.
+ * @param int $num_words Number of words. Default 55.
+ * @param string $more What to append if $text needs to be trimmed. Default '…'.
+ * @return string Trimmed text.
+ */
+function wp_trim_words( $text, $num_words = 55, $more = null ) {
+ if ( null === $more )
+ $more = __( '…' );
+ $original_text = $text;
+ $text = wp_strip_all_tags( $text );
+ $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY );
+ if ( count( $words_array ) > $num_words ) {
+ array_pop( $words_array );
+ $text = implode( ' ', $words_array );
+ $text = $text . $more;
+ } else {
+ $text = implode( ' ', $words_array );
+ }
+ return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text );
+}
+
/**
* Converts named entities into numbered entities.
*
* @return string Text with converted entities.
*/
function ent2ncr($text) {
+
+ // Allow a plugin to short-circuit and override the mappings.
+ $filtered = apply_filters( 'pre_ent2ncr', null, $text );
+ if( null !== $filtered )
+ return $filtered;
+
$to_ncr = array(
'"' => '"',
'&' => '&',
return apply_filters('htmledit_pre', $output);
}
-/**
- * Checks and cleans a URL.
- *
- * A number of characters are removed from the URL. If the URL is for displaying
- * (the default behaviour) amperstands are also replaced. The 'esc_url' filter
- * is applied to the returned cleaned URL.
- *
- * @since 1.2.0
- * @uses wp_kses_bad_protocol() To only permit protocols in the URL set
- * via $protocols or the common ones set in the function.
- *
- * @param string $url The URL to be cleaned.
- * @param array $protocols Optional. An array of acceptable protocols.
- * Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet' if not set.
- * @param string $context Optional. How the URL will be used. Default is 'display'.
- * @return string The cleaned $url after the 'cleaned_url' filter is applied.
- */
-function clean_url( $url, $protocols = null, $context = 'display' ) {
- $original_url = $url;
-
- if ('' == $url) return $url;
- $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\\x80-\\xff]|i', '', $url);
- $strip = array('%0d', '%0a', '%0D', '%0A');
- $url = _deep_replace($strip, $url);
- $url = str_replace(';//', '://', $url);
- /* If the URL doesn't appear to contain a scheme, we
- * presume it needs http:// appended (unless a relative
- * link starting with / or a php file).
- */
- if ( strpos($url, ':') === false &&
- substr( $url, 0, 1 ) != '/' && substr( $url, 0, 1 ) != '#' && !preg_match('/^[a-z0-9-]+?\.php/i', $url) )
- $url = 'http://' . $url;
-
- // Replace ampersands and single quotes only when displaying.
- if ( 'display' == $context ) {
- $url = preg_replace('/&([^#])(?![a-z]{2,8};)/', '&$1', $url);
- $url = str_replace( "'", ''', $url );
- }
-
- if ( !is_array($protocols) )
- $protocols = array('http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet');
- if ( wp_kses_bad_protocol( $url, $protocols ) != $url )
- return '';
-
- return apply_filters('clean_url', $url, $original_url, $context);
-}
-
/**
* Perform a deep string replace operation to ensure the values in $search are no longer present
- *
+ *
* Repeats the replacement operation until it no longer replaces anything so as to remove "nested" values
* e.g. $subject = '%0%0%0DDD', $search ='%0D', $result ='' rather than the '%0%0DD' that
* str_replace would return
- *
+ *
* @since 2.8.1
* @access private
- *
+ *
* @param string|array $search
* @param string $subject
* @return string The processed string
*/
-function _deep_replace($search, $subject){
+function _deep_replace( $search, $subject ) {
$found = true;
- while($found) {
+ $subject = (string) $subject;
+ while ( $found ) {
$found = false;
- foreach( (array) $search as $val ) {
- while(strpos($subject, $val) !== false) {
+ foreach ( (array) $search as $val ) {
+ while ( strpos( $subject, $val ) !== false ) {
$found = true;
- $subject = str_replace($val, '', $subject);
+ $subject = str_replace( $val, '', $subject );
}
}
}
-
+
return $subject;
}
return $wpdb->escape( $sql );
}
-
/**
* Checks and cleans a URL.
*
* A number of characters are removed from the URL. If the URL is for displaying
- * (the default behaviour) amperstands are also replaced. The 'esc_url' filter
+ * (the default behaviour) ampersands are also replaced. The 'clean_url' filter
* is applied to the returned cleaned URL.
*
* @since 2.8.0
- * @uses esc_url()
* @uses wp_kses_bad_protocol() To only permit protocols in the URL set
* via $protocols or the common ones set in the function.
*
* @param string $url The URL to be cleaned.
* @param array $protocols Optional. An array of acceptable protocols.
- * Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet' if not set.
- * @return string The cleaned $url after the 'cleaned_url' filter is applied.
+ * Defaults to 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn' if not set.
+ * @param string $_context Private. Use esc_url_raw() for database usage.
+ * @return string The cleaned $url after the 'clean_url' filter is applied.
*/
-function esc_url( $url, $protocols = null ) {
- return clean_url( $url, $protocols, 'display' );
+function esc_url( $url, $protocols = null, $_context = 'display' ) {
+ $original_url = $url;
+
+ if ( '' == $url )
+ return $url;
+ $url = preg_replace('|[^a-z0-9-~+_.?#=!&;,/:%@$\|*\'()\\x80-\\xff]|i', '', $url);
+ $strip = array('%0d', '%0a', '%0D', '%0A');
+ $url = _deep_replace($strip, $url);
+ $url = str_replace(';//', '://', $url);
+ /* If the URL doesn't appear to contain a scheme, we
+ * presume it needs http:// appended (unless a relative
+ * link starting with /, # or ? or a php file).
+ */
+ if ( strpos($url, ':') === false && ! in_array( $url[0], array( '/', '#', '?' ) ) &&
+ ! preg_match('/^[a-z0-9-]+?\.php/i', $url) )
+ $url = 'http://' . $url;
+
+ // Replace ampersands and single quotes only when displaying.
+ if ( 'display' == $_context ) {
+ $url = wp_kses_normalize_entities( $url );
+ $url = str_replace( '&', '&', $url );
+ $url = str_replace( "'", ''', $url );
+ }
+
+ if ( ! is_array( $protocols ) )
+ $protocols = wp_allowed_protocols();
+ if ( wp_kses_bad_protocol( $url, $protocols ) != $url )
+ return '';
+
+ return apply_filters('clean_url', $url, $original_url, $_context);
}
/**
* Performs esc_url() for database usage.
*
- * @see esc_url()
- * @see esc_url()
- *
* @since 2.8.0
+ * @uses esc_url()
*
* @param string $url The URL to be cleaned.
* @param array $protocols An array of acceptable protocols.
* @return string The cleaned URL.
*/
function esc_url_raw( $url, $protocols = null ) {
- return clean_url( $url, $protocols, 'db' );
-}
-
-/**
- * Performs esc_url() for database or redirect usage.
- *
- * @see esc_url()
- * @deprecated 2.8.0
- *
- * @since 2.3.1
- *
- * @param string $url The URL to be cleaned.
- * @param array $protocols An array of acceptable protocols.
- * @return string The cleaned URL.
- */
-function sanitize_url( $url, $protocols = null ) {
- return clean_url( $url, $protocols, 'db' );
+ return esc_url( $url, $protocols, 'db' );
}
/**
}
/**
- * Escape single quotes, specialchar double quotes, and fix line endings.
+ * Escape single quotes, htmlspecialchar " < > &, and fix line endings.
*
- * The filter 'js_escape' is also applied here.
+ * Escapes text strings for echoing in JS. It is intended to be used for inline JS
+ * (in a tag attribute, for example onclick="..."). Note that the strings have to
+ * be in single quotes. The filter 'js_escape' is also applied here.
*
* @since 2.8.0
*
$safe_text = wp_check_invalid_utf8( $text );
$safe_text = _wp_specialchars( $safe_text, ENT_COMPAT );
$safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) );
- $safe_text = preg_replace( "/\r?\n/", "\\n", addslashes( $safe_text ) );
+ $safe_text = str_replace( "\r", '', $safe_text );
+ $safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) );
return apply_filters( 'js_escape', $safe_text, $text );
}
-/**
- * Escape single quotes, specialchar double quotes, and fix line endings.
- *
- * The filter 'js_escape' is also applied by esc_js()
- *
- * @since 2.0.4
- *
- * @deprecated 2.8.0
- * @see esc_js()
- *
- * @param string $text The text to be escaped.
- * @return string Escaped text.
- */
-function js_escape( $text ) {
- return esc_js( $text );
-}
-
/**
* Escaping for HTML blocks.
*
$safe_text = wp_check_invalid_utf8( $text );
$safe_text = _wp_specialchars( $safe_text, ENT_QUOTES );
return apply_filters( 'esc_html', $safe_text, $text );
- return $text;
-}
-
-/**
- * Escaping for HTML blocks
- * @deprecated 2.8.0
- * @see esc_html()
- */
-function wp_specialchars( $string, $quote_style = ENT_NOQUOTES, $charset = false, $double_encode = false ) {
- if ( func_num_args() > 1 ) { // Maintain backwards compat for people passing additional args
- $args = func_get_args();
- return call_user_func_array( '_wp_specialchars', $args );
- } else {
- return esc_html( $string );
- }
}
/**
}
/**
- * Escaping for HTML attributes.
+ * Escaping for textarea values.
*
- * @since 2.0.6
- *
- * @deprecated 2.8.0
- * @see esc_attr()
+ * @since 3.1
*
* @param string $text
* @return string
*/
-function attribute_escape( $text ) {
- return esc_attr( $text );
+function esc_textarea( $text ) {
+ $safe_text = htmlspecialchars( $text, ENT_QUOTES );
+ return apply_filters( 'esc_textarea', $safe_text, $text );
}
/**
* @return string
*/
function tag_escape($tag_name) {
- $safe_tag = strtolower( preg_replace('/[^a-zA-Z_:]/', '', $tag_name) );
+ $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) );
return apply_filters('tag_escape', $safe_tag, $tag_name);
}
*/
function sanitize_option($option, $value) {
- switch ($option) {
+ switch ( $option ) {
case 'admin_email':
$value = sanitize_email($value);
+ if ( !is_email($value) ) {
+ $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+ if ( function_exists('add_settings_error') )
+ add_settings_error('admin_email', 'invalid_admin_email', __('The email address entered did not appear to be a valid email address. Please enter a valid email address.'));
+ }
+ break;
+
+ case 'new_admin_email':
+ $value = sanitize_email($value);
+ if ( !is_email($value) ) {
+ $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+ if ( function_exists('add_settings_error') )
+ add_settings_error('new_admin_email', 'invalid_admin_email', __('The email address entered did not appear to be a valid email address. Please enter a valid email address.'));
+ }
break;
case 'thumbnail_size_w':
case 'medium_size_h':
case 'large_size_w':
case 'large_size_h':
+ case 'embed_size_h':
case 'default_post_edit_rows':
case 'mailserver_port':
case 'comment_max_links':
case 'page_on_front':
+ case 'page_for_posts':
case 'rss_excerpt_length':
case 'default_category':
case 'default_email_category':
case 'close_comments_days_old':
case 'comments_per_page':
case 'thread_comments_depth':
- $value = abs((int) $value);
+ case 'users_can_register':
+ case 'start_of_week':
+ $value = absint( $value );
+ break;
+
+ case 'embed_size_w':
+ if ( '' !== $value )
+ $value = absint( $value );
break;
case 'posts_per_page':
case 'posts_per_rss':
$value = (int) $value;
- if ( empty($value) ) $value = 1;
- if ( $value < -1 ) $value = abs($value);
+ if ( empty($value) )
+ $value = 1;
+ if ( $value < -1 )
+ $value = abs($value);
break;
case 'default_ping_status':
break;
case 'siteurl':
+ if ( (bool)preg_match( '#http(s?)://(.+)#i', $value) ) {
+ $value = esc_url_raw($value);
+ } else {
+ $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+ if ( function_exists('add_settings_error') )
+ add_settings_error('siteurl', 'invalid_siteurl', __('The WordPress address you entered did not appear to be a valid URL. Please enter a valid URL.'));
+ }
+ break;
+
case 'home':
- $value = stripslashes($value);
- $value = esc_url($value);
+ if ( (bool)preg_match( '#http(s?)://(.+)#i', $value) ) {
+ $value = esc_url_raw($value);
+ } else {
+ $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+ if ( function_exists('add_settings_error') )
+ add_settings_error('home', 'invalid_home', __('The Site address you entered did not appear to be a valid URL. Please enter a valid URL.'));
+ }
break;
- default :
- $value = apply_filters("sanitize_option_{$option}", $value, $option);
+
+ case 'WPLANG':
+ $allowed = get_available_languages();
+ if ( ! in_array( $value, $allowed ) && ! empty( $value ) )
+ $value = get_option( $option );
+ break;
+
+ case 'timezone_string':
+ $allowed_zones = timezone_identifiers_list();
+ if ( ! in_array( $value, $allowed_zones ) && ! empty( $value ) ) {
+ $value = get_option( $option ); // Resets option to stored value in the case of failed sanitization
+ if ( function_exists('add_settings_error') )
+ add_settings_error('timezone_string', 'invalid_timezone_string', __('The timezone you have entered is not valid. Please select a valid timezone.') );
+ }
+ break;
+
+ case 'permalink_structure':
+ case 'category_base':
+ case 'tag_base':
+ $value = esc_url_raw( $value );
+ $value = str_replace( 'http://', '', $value );
break;
}
+ $value = apply_filters("sanitize_option_{$option}", $value, $option);
+
return $value;
}
$fragment = substr($pattern, $start, $end - $start);
// Fragment has a specifier
- if ( $pattern{$start} == '%' ) {
+ if ( $pattern[$start] == '%' ) {
// Find numbered arguments or take the next one in order
if ( preg_match('/^%(\d+)\$/', $fragment, $matches) ) {
$arg = isset($args[$matches[1]]) ? $args[$matches[1]] : '';
// Translate and filter the delimiter set (avoid ampersands and entities here)
$l = apply_filters('wp_sprintf_l', array(
- /* translators: used between list items, there is a space after the coma */
+ /* translators: used between list items, there is a space after the comma */
'between' => __(', '),
/* translators: used between list items, there is a space after the and */
'between_last_two' => __(', and '),
* @return string The excerpt.
*/
function wp_html_excerpt( $str, $count ) {
- $str = strip_tags( $str );
+ $str = wp_strip_all_tags( $str, true );
$str = mb_substr( $str, 0, $count );
// remove part of an entity at the end
$str = preg_replace( '/&[^;\s]{0,6}$/', '', $str );
* @return string The processed content.
*/
function links_add_base_url( $content, $base, $attrs = array('src', 'href') ) {
+ global $_links_add_base;
+ $_links_add_base = $base;
$attrs = implode('|', (array)$attrs);
- return preg_replace_callback("!($attrs)=(['\"])(.+?)\\2!i",
- create_function('$m', 'return _links_add_base($m, "' . $base . '");'),
- $content);
+ return preg_replace_callback( "!($attrs)=(['\"])(.+?)\\2!i", '_links_add_base', $content );
}
/**
* @access private
*
* @param string $m The matched link.
- * @param string $base The base URL to prefix to links.
* @return string The processed link.
*/
-function _links_add_base($m, $base) {
+function _links_add_base($m) {
+ global $_links_add_base;
//1 = attribute name 2 = quotation mark 3 = URL
return $m[1] . '=' . $m[2] .
(strpos($m[3], 'http://') === false ?
- path_join($base, $m[3]) :
+ path_join($_links_add_base, $m[3]) :
$m[3])
. $m[2];
}
* This function by default only applies to <a> tags, however this can be
* modified by the 3rd param.
*
- * <b>NOTE:</b> Any current target attributed will be striped and replaced.
+ * <b>NOTE:</b> Any current target attributed will be stripped and replaced.
*
* @since 2.7.0
*
* @return string The processed content.
*/
function links_add_target( $content, $target = '_blank', $tags = array('a') ) {
+ global $_links_add_target;
+ $_links_add_target = $target;
$tags = implode('|', (array)$tags);
- return preg_replace_callback("!<($tags)(.+?)>!i",
- create_function('$m', 'return _links_add_target($m, "' . $target . '");'),
- $content);
+ return preg_replace_callback( "!<($tags)(.+?)>!i", '_links_add_target', $content );
}
+
/**
* Callback to add a target attribute to all links in passed content.
*
* @access private
*
* @param string $m The matched link.
- * @param string $target The Target to add to the links.
* @return string The processed link.
*/
-function _links_add_target( $m, $target ) {
+function _links_add_target( $m ) {
+ global $_links_add_target;
$tag = $m[1];
$link = preg_replace('|(target=[\'"](.*?)[\'"])|i', '', $m[2]);
- return '<' . $tag . $link . ' target="' . $target . '">';
+ return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">';
}
// normalize EOL characters and strip duplicate whitespace
return $str;
}
+/**
+ * Properly strip all HTML tags including script and style
+ *
+ * @since 2.9.0
+ *
+ * @param string $string String containing HTML tags
+ * @param bool $remove_breaks optional Whether to remove left over line breaks and white space chars
+ * @return string The processed string.
+ */
+function wp_strip_all_tags($string, $remove_breaks = false) {
+ $string = preg_replace( '@<(script|style)[^>]*?>.*?</\\1>@si', '', $string );
+ $string = strip_tags($string);
+
+ if ( $remove_breaks )
+ $string = preg_replace('/[\r\n\t ]+/', ' ', $string);
+
+ return trim($string);
+}
+
+/**
+ * Sanitize a string from user input or from the db
+ *
+ * check for invalid UTF-8,
+ * Convert single < characters to entity,
+ * strip all tags,
+ * remove line breaks, tabs and extra white space,
+ * strip octets.
+ *
+ * @since 2.9.0
+ *
+ * @param string $str
+ * @return string
+ */
+function sanitize_text_field($str) {
+ $filtered = wp_check_invalid_utf8( $str );
+
+ if ( strpos($filtered, '<') !== false ) {
+ $filtered = wp_pre_kses_less_than( $filtered );
+ // This will strip extra whitespace for us.
+ $filtered = wp_strip_all_tags( $filtered, true );
+ } else {
+ $filtered = trim( preg_replace('/[\r\n\t ]+/', ' ', $filtered) );
+ }
+
+ $match = array();
+ $found = false;
+ while ( preg_match('/%[a-f0-9]{2}/i', $filtered, $match) ) {
+ $filtered = str_replace($match[0], '', $filtered);
+ $found = true;
+ }
+
+ if ( $found ) {
+ // Strip out the whitespace that may now exist after removing the octets.
+ $filtered = trim( preg_replace('/ +/', ' ', $filtered) );
+ }
+
+ return apply_filters('sanitize_text_field', $filtered, $str);
+}
+
+/**
+ * i18n friendly version of basename()
+ *
+ * @since 3.1.0
+ *
+ * @param string $path A path.
+ * @param string $suffix If the filename ends in suffix this will also be cut off.
+ * @return string
+ */
+function wp_basename( $path, $suffix = '' ) {
+ return urldecode( basename( str_replace( '%2F', '/', urlencode( $path ) ), $suffix ) );
+}
+
+/**
+ * Forever eliminate "Wordpress" from the planet (or at least the little bit we can influence).
+ *
+ * Violating our coding standards for a good function name.
+ *
+ * @since 3.0.0
+ */
+function capital_P_dangit( $text ) {
+ // Simple replacement for titles
+ if ( 'the_title' === current_filter() )
+ return str_replace( 'Wordpress', 'WordPress', $text );
+ // Still here? Use the more judicious replacement
+ static $dblq = false;
+ if ( false === $dblq )
+ $dblq = _x('“', 'opening curly quote');
+ return str_replace(
+ array( ' Wordpress', '‘Wordpress', $dblq . 'Wordpress', '>Wordpress', '(Wordpress' ),
+ array( ' WordPress', '‘WordPress', $dblq . 'WordPress', '>WordPress', '(WordPress' ),
+ $text );
+
+}
+
+/**
+ * Sanitize a mime type
+ *
+ * @since 3.1.3
+ *
+ * @param string $mime_type Mime type
+ * @return string Sanitized mime type
+ */
+function sanitize_mime_type( $mime_type ) {
+ $sani_mime_type = preg_replace( '/[^-+*.a-zA-Z0-9\/]/', '', $mime_type );
+ return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type );
+}
+
?>
scripts.mit.edu / autoinstalls / wordpress.git / blobdiff