string Text which has been converted into correct paragraph tags. */ function wpautop($pee, $br = true) { $pre_tags = array(); if ( trim($pee) === '' ) return ''; $pee = $pee . "\n"; // just to make things a little easier, pad the end if ( strpos($pee, '', $pee ); $last_pee = array_pop($pee_parts); $pee = ''; $i = 0; foreach ( $pee_parts as $pee_part ) { $start = strpos($pee_part, ''; $pee .= substr( $pee_part, 0, $start ) . $name; $i++; } $pee .= $last_pee; } $pee = preg_replace('|
\s*
|', "\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|option|form|map|area|blockquote|address|math|style|p|h[1-6]|hr|fieldset|noscript|legend|section|article|aside|hgroup|header|footer|nav|figure|figcaption|details|menu|summary)'; $pee = preg_replace('!(<' . $allblocks . '[^>]*>)!', "\n$1", $pee); $pee = preg_replace('!()!', "$1\n\n", $pee); $pee = str_replace(array("\r\n", "\r"), "\n", $pee); // cross-platform newlines if ( strpos($pee, ']*)>\s*|', "", $pee); // no pee inside object/embed $pee = preg_replace('|\s*\s*|', '', $pee); } $pee = preg_replace("/\n\n+/", "\n\n", $pee); // take care of duplicates // make paragraphs, including one at the end $pees = preg_split('/\n\s*\n/', $pee, -1, PREG_SPLIT_NO_EMPTY); $pee = ''; foreach ( $pees as $tinkle ) $pee .= '

' . trim($tinkle, "\n") . "

\n"; $pee = preg_replace('|

\s*

|', '', $pee); // under certain strange conditions it could create a P of entirely whitespace $pee = preg_replace('!

([^<]+)!', "

$1

", $pee); $pee = preg_replace('!

\s*(]*>)\s*

!', "$1", $pee); // don't pee all over a tag $pee = preg_replace("|

(|", "$1", $pee); // problem with nested lists $pee = preg_replace('|

]*)>|i', "

", $pee); $pee = str_replace('

', '

', $pee); $pee = preg_replace('!

\s*(]*>)!', "$1", $pee); $pee = preg_replace('!(]*>)\s*

!', "$1", $pee); if ( $br ) { $pee = preg_replace_callback('/<(script|style).*?<\/\\1>/s', '_autop_newline_preservation_helper', $pee); $pee = preg_replace('|(?)\s*\n|', "
\n", $pee); // optionally make line breaks $pee = str_replace('', "\n", $pee); } $pee = preg_replace('!(]*>)\s*
!', "$1", $pee); $pee = preg_replace('!
(\s*]*>)!', '$1', $pee); $pee = preg_replace( "|\n

$|", '

', $pee ); if ( !empty($pre_tags) ) $pee = str_replace(array_keys($pre_tags), array_values($pre_tags), $pee); return $pee; } /** * Newline preservation help function for wpautop * * @since 3.1.0 * @access private * * @param array $matches preg_replace_callback matches array * @return string */ function _autop_newline_preservation_helper( $matches ) { return str_replace("\n", "", $matches[0]); } /** * Don't auto-p wrap shortcodes that stand alone * * Ensures that shortcodes are not wrapped in <

>...<

>. * * @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 = '/' . '

' // Opening paragraph . '\\s*+' // Optional leading whitespace . '(' // 1: The shortcode . '\\[' // Opening bracket . "($tagregexp)" // 2: Shortcode name . '(?![\\w-])' // Not followed by word character or hyphen // 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. * * NOTE: This function checks for 5-Byte sequences, UTF8 * has Bytes Sequences with a maximum length of 4. * * @author bmorel at ssi dot fr (modified) * @since 1.2.1 * * @param string $str The string to be checked * @return bool True if $str fits a UTF-8 model, false otherwise. */ function seems_utf8($str) { $length = strlen($str); for ($i=0; $i < $length; $i++) { $c = ord($str[$i]); if ($c < 0x80) $n = 0; # 0bbbbbbb elseif (($c & 0xE0) == 0xC0) $n=1; # 110bbbbb elseif (($c & 0xF0) == 0xE0) $n=2; # 1110bbbb elseif (($c & 0xF8) == 0xF0) $n=3; # 11110bbb elseif (($c & 0xFC) == 0xF8) $n=4; # 111110bb elseif (($c & 0xFE) == 0xFC) $n=5; # 1111110b else return false; # Does not match any model for ($j=0; $j<$n; $j++) { # n bytes matching 10bbbbbb follow ? if ((++$i == $length) || ((ord($str[$i]) & 0xC0) != 0x80)) return false; } } return true; } /** * Converts a number of special characters into their HTML entities. * * Specifically deals with: &, <, >, ", and '. * * $quote_style can be set to ENT_COMPAT to encode " to * ", or ENT_QUOTES to do both. Default is ENT_NOQUOTES where no quotes are encoded. * * @since 1.2.2 * @access private * * @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 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 ) ) return ''; // Don't bother if there are no specialchars - saves some processing 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 ) ) $quote_style = ENT_NOQUOTES; 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 ) { static $_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' ) ) ) $charset = 'UTF-8'; $_quote_style = $quote_style; if ( $quote_style === 'double' ) { $quote_style = ENT_COMPAT; $_quote_style = ENT_COMPAT; } elseif ( $quote_style === 'single' ) { $quote_style = ENT_NOQUOTES; } // Handle double encoding ourselves if ( $double_encode ) { $string = @htmlspecialchars( $string, $quote_style, $charset ); } else { // Decode & into & $string = wp_specialchars_decode( $string, $_quote_style ); // Guarantee every &entity; is valid or re-encode the & $string = wp_kses_normalize_entities( $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 ) $string = str_replace( "'", ''', $string ); return $string; } /** * Converts a number of HTML entities into their special characters. * * Specifically deals with: &, <, >, ", and '. * * $quote_style can be set to ENT_COMPAT to decode " entities, * or ENT_QUOTES to do both " and '. Default is ENT_NOQUOTES where no quotes are decoded. * * @since 2.8.0 * * @param string $string The text which is to be decoded. * @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 _wp_specialchars() values; converting single quotes if set to 'single', double if set to 'double' or both if otherwise set. Default is ENT_NOQUOTES. * @return string The decoded text without HTML entities. */ function wp_specialchars_decode( $string, $quote_style = ENT_NOQUOTES ) { $string = (string) $string; if ( 0 === strlen( $string ) ) { return ''; } // Don't bother if there are no entities - saves a lot of processing if ( strpos( $string, '&' ) === false ) { return $string; } // Match the previous behaviour of _wp_specialchars() when the $quote_style is not an accepted value if ( empty( $quote_style ) ) { $quote_style = ENT_NOQUOTES; } elseif ( !in_array( $quote_style, array( 0, 2, 3, 'single', 'double' ), true ) ) { $quote_style = ENT_QUOTES; } // More complete than get_html_translation_table( HTML_SPECIALCHARS ) $single = array( ''' => '\'', ''' => '\'' ); $single_preg = array( '/�*39;/' => ''', '/�*27;/i' => ''' ); $double = array( '"' => '"', '"' => '"', '"' => '"' ); $double_preg = array( '/�*34;/' => '"', '/�*22;/i' => '"' ); $others = array( '<' => '<', '<' => '<', '>' => '>', '>' => '>', '&' => '&', '&' => '&', '&' => '&' ); $others_preg = array( '/�*60;/' => '<', '/�*62;/' => '>', '/�*38;/' => '&', '/�*26;/i' => '&' ); if ( $quote_style === ENT_QUOTES ) { $translation = array_merge( $single, $double, $others ); $translation_preg = array_merge( $single_preg, $double_preg, $others_preg ); } elseif ( $quote_style === ENT_COMPAT || $quote_style === 'double' ) { $translation = array_merge( $double, $others ); $translation_preg = array_merge( $double_preg, $others_preg ); } elseif ( $quote_style === 'single' ) { $translation = array_merge( $single, $others ); $translation_preg = array_merge( $single_preg, $others_preg ); } elseif ( $quote_style === ENT_NOQUOTES ) { $translation = $others; $translation_preg = $others_preg; } // Remove zero padding on numeric entities $string = preg_replace( array_keys( $translation_preg ), array_values( $translation_preg ), $string ); // Replace characters according to translation table return strtr( $string, $translation ); } /** * Checks for invalid UTF8 in a string. * * @since 2.8.0 * * @param string $string The text which is to be checked. * @param boolean $strip Optional. Whether to attempt to strip out invalid UTF8. Default is false. * @return string The checked text. */ function wp_check_invalid_utf8( $string, $strip = false ) { $string = (string) $string; if ( 0 === strlen( $string ) ) { return ''; } // Store the site charset as a static to avoid multiple calls to get_option() static $is_utf8; if ( !isset( $is_utf8 ) ) { $is_utf8 = in_array( get_option( 'blog_charset' ), array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ); } if ( !$is_utf8 ) { return $string; } // Check for support for utf8 in the installed PCRE library once and store the result in a static static $utf8_pcre; if ( !isset( $utf8_pcre ) ) { $utf8_pcre = @preg_match( '/^./u', 'a' ); } // We can't demand utf8 in the PCRE installation, so just return the string in those cases if ( !$utf8_pcre ) { return $string; } // preg_match fails when it encounters invalid UTF8 in $string if ( 1 === @preg_match( '/^./us', $string ) ) { return $string; } // Attempt to strip the bad chars if requested (not recommended) if ( $strip && function_exists( 'iconv' ) ) { return iconv( 'utf-8', 'utf-8', $string ); } return ''; } /** * Encode the Unicode values to be used in the URI. * * @since 1.5.0 * * @param string $utf8_string * @param int $length Max length of the string * @return string String with Unicode encoded for URI. */ function utf8_uri_encode( $utf8_string, $length = 0 ) { $unicode = ''; $values = array(); $num_octets = 1; $unicode_length = 0; $string_length = strlen( $utf8_string ); for ($i = 0; $i < $string_length; $i++ ) { $value = ord( $utf8_string[ $i ] ); if ( $value < 128 ) { if ( $length && ( $unicode_length >= $length ) ) break; $unicode .= chr($value); $unicode_length++; } else { if ( count( $values ) == 0 ) $num_octets = ( $value < 224 ) ? 2 : 3; $values[] = $value; if ( $length && ( $unicode_length + ($num_octets * 3) ) > $length ) break; if ( count( $values ) == $num_octets ) { if ($num_octets == 3) { $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]) . '%' . dechex($values[2]); $unicode_length += 9; } else { $unicode .= '%' . dechex($values[0]) . '%' . dechex($values[1]); $unicode_length += 6; } $values = array(); $num_octets = 1; } } } return $unicode; } /** * Converts all accent characters to ASCII characters. * * If there are no accent characters, then the string given is just returned. * * @since 1.2.1 * * @param string $string Text that might have accent characters * @return string Filtered string with replaced "nice" characters. */ function remove_accents($string) { if ( !preg_match('/[\x80-\xff]/', $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(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(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(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(196).chr(132) => 'A', chr(196).chr(133) => 'a', chr(196).chr(134) => 'C', chr(196).chr(135) => 'c', chr(196).chr(136) => 'C', chr(196).chr(137) => 'c', chr(196).chr(138) => 'C', chr(196).chr(139) => 'c', chr(196).chr(140) => 'C', chr(196).chr(141) => 'c', chr(196).chr(142) => 'D', chr(196).chr(143) => 'd', chr(196).chr(144) => 'D', chr(196).chr(145) => 'd', chr(196).chr(146) => 'E', chr(196).chr(147) => 'e', chr(196).chr(148) => 'E', chr(196).chr(149) => 'e', chr(196).chr(150) => 'E', chr(196).chr(151) => 'e', chr(196).chr(152) => 'E', chr(196).chr(153) => 'e', chr(196).chr(154) => 'E', chr(196).chr(155) => 'e', chr(196).chr(156) => 'G', chr(196).chr(157) => 'g', chr(196).chr(158) => 'G', chr(196).chr(159) => 'g', chr(196).chr(160) => 'G', chr(196).chr(161) => 'g', chr(196).chr(162) => 'G', chr(196).chr(163) => 'g', chr(196).chr(164) => 'H', chr(196).chr(165) => 'h', chr(196).chr(166) => 'H', chr(196).chr(167) => 'h', chr(196).chr(168) => 'I', chr(196).chr(169) => 'i', chr(196).chr(170) => 'I', chr(196).chr(171) => 'i', chr(196).chr(172) => 'I', chr(196).chr(173) => 'i', chr(196).chr(174) => 'I', chr(196).chr(175) => 'i', chr(196).chr(176) => 'I', chr(196).chr(177) => 'i', chr(196).chr(178) => 'IJ',chr(196).chr(179) => 'ij', chr(196).chr(180) => 'J', chr(196).chr(181) => 'j', chr(196).chr(182) => 'K', chr(196).chr(183) => 'k', chr(196).chr(184) => 'k', chr(196).chr(185) => 'L', chr(196).chr(186) => 'l', chr(196).chr(187) => 'L', chr(196).chr(188) => 'l', chr(196).chr(189) => 'L', chr(196).chr(190) => 'l', chr(196).chr(191) => 'L', chr(197).chr(128) => 'l', chr(197).chr(129) => 'L', chr(197).chr(130) => 'l', chr(197).chr(131) => 'N', chr(197).chr(132) => 'n', chr(197).chr(133) => 'N', chr(197).chr(134) => 'n', chr(197).chr(135) => 'N', chr(197).chr(136) => 'n', chr(197).chr(137) => 'N', chr(197).chr(138) => 'n', chr(197).chr(139) => 'N', chr(197).chr(140) => 'O', chr(197).chr(141) => 'o', chr(197).chr(142) => 'O', chr(197).chr(143) => 'o', chr(197).chr(144) => 'O', chr(197).chr(145) => 'o', chr(197).chr(146) => 'OE',chr(197).chr(147) => 'oe', chr(197).chr(148) => 'R',chr(197).chr(149) => 'r', chr(197).chr(150) => 'R',chr(197).chr(151) => 'r', chr(197).chr(152) => 'R',chr(197).chr(153) => 'r', chr(197).chr(154) => 'S',chr(197).chr(155) => 's', chr(197).chr(156) => 'S',chr(197).chr(157) => 's', chr(197).chr(158) => 'S',chr(197).chr(159) => 's', chr(197).chr(160) => 'S', chr(197).chr(161) => 's', chr(197).chr(162) => 'T', chr(197).chr(163) => 't', chr(197).chr(164) => 'T', chr(197).chr(165) => 't', chr(197).chr(166) => 'T', chr(197).chr(167) => 't', chr(197).chr(168) => 'U', chr(197).chr(169) => 'u', chr(197).chr(170) => 'U', chr(197).chr(171) => 'u', chr(197).chr(172) => 'U', chr(197).chr(173) => 'u', chr(197).chr(174) => 'U', chr(197).chr(175) => 'u', chr(197).chr(176) => 'U', chr(197).chr(177) => 'u', chr(197).chr(178) => 'U', chr(197).chr(179) => 'u', chr(197).chr(180) => 'W', chr(197).chr(181) => 'w', chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y', chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z', 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 chr(194).chr(163) => '', // Vowels with diacritic (Vietnamese) // unmarked chr(198).chr(160) => 'O', chr(198).chr(161) => 'o', chr(198).chr(175) => 'U', chr(198).chr(176) => 'u', // grave accent chr(225).chr(186).chr(166) => 'A', chr(225).chr(186).chr(167) => 'a', chr(225).chr(186).chr(176) => 'A', chr(225).chr(186).chr(177) => 'a', chr(225).chr(187).chr(128) => 'E', chr(225).chr(187).chr(129) => 'e', chr(225).chr(187).chr(146) => 'O', chr(225).chr(187).chr(147) => 'o', chr(225).chr(187).chr(156) => 'O', chr(225).chr(187).chr(157) => 'o', chr(225).chr(187).chr(170) => 'U', chr(225).chr(187).chr(171) => 'u', chr(225).chr(187).chr(178) => 'Y', chr(225).chr(187).chr(179) => 'y', // hook chr(225).chr(186).chr(162) => 'A', chr(225).chr(186).chr(163) => 'a', chr(225).chr(186).chr(168) => 'A', chr(225).chr(186).chr(169) => 'a', chr(225).chr(186).chr(178) => 'A', chr(225).chr(186).chr(179) => 'a', chr(225).chr(186).chr(186) => 'E', chr(225).chr(186).chr(187) => 'e', chr(225).chr(187).chr(130) => 'E', chr(225).chr(187).chr(131) => 'e', chr(225).chr(187).chr(136) => 'I', chr(225).chr(187).chr(137) => 'i', chr(225).chr(187).chr(142) => 'O', chr(225).chr(187).chr(143) => 'o', chr(225).chr(187).chr(148) => 'O', chr(225).chr(187).chr(149) => 'o', chr(225).chr(187).chr(158) => 'O', chr(225).chr(187).chr(159) => 'o', chr(225).chr(187).chr(166) => 'U', chr(225).chr(187).chr(167) => 'u', chr(225).chr(187).chr(172) => 'U', chr(225).chr(187).chr(173) => 'u', chr(225).chr(187).chr(182) => 'Y', chr(225).chr(187).chr(183) => 'y', // tilde chr(225).chr(186).chr(170) => 'A', chr(225).chr(186).chr(171) => 'a', chr(225).chr(186).chr(180) => 'A', chr(225).chr(186).chr(181) => 'a', chr(225).chr(186).chr(188) => 'E', chr(225).chr(186).chr(189) => 'e', chr(225).chr(187).chr(132) => 'E', chr(225).chr(187).chr(133) => 'e', chr(225).chr(187).chr(150) => 'O', chr(225).chr(187).chr(151) => 'o', chr(225).chr(187).chr(160) => 'O', chr(225).chr(187).chr(161) => 'o', chr(225).chr(187).chr(174) => 'U', chr(225).chr(187).chr(175) => 'u', chr(225).chr(187).chr(184) => 'Y', chr(225).chr(187).chr(185) => 'y', // acute accent chr(225).chr(186).chr(164) => 'A', chr(225).chr(186).chr(165) => 'a', chr(225).chr(186).chr(174) => 'A', chr(225).chr(186).chr(175) => 'a', chr(225).chr(186).chr(190) => 'E', chr(225).chr(186).chr(191) => 'e', chr(225).chr(187).chr(144) => 'O', chr(225).chr(187).chr(145) => 'o', chr(225).chr(187).chr(154) => 'O', chr(225).chr(187).chr(155) => 'o', chr(225).chr(187).chr(168) => 'U', chr(225).chr(187).chr(169) => 'u', // dot below chr(225).chr(186).chr(160) => 'A', chr(225).chr(186).chr(161) => 'a', chr(225).chr(186).chr(172) => 'A', chr(225).chr(186).chr(173) => 'a', chr(225).chr(186).chr(182) => 'A', chr(225).chr(186).chr(183) => 'a', chr(225).chr(186).chr(184) => 'E', chr(225).chr(186).chr(185) => 'e', chr(225).chr(187).chr(134) => 'E', chr(225).chr(187).chr(135) => 'e', chr(225).chr(187).chr(138) => 'I', chr(225).chr(187).chr(139) => 'i', chr(225).chr(187).chr(140) => 'O', chr(225).chr(187).chr(141) => 'o', chr(225).chr(187).chr(152) => 'O', chr(225).chr(187).chr(153) => 'o', chr(225).chr(187).chr(162) => 'O', chr(225).chr(187).chr(163) => 'o', chr(225).chr(187).chr(164) => 'U', chr(225).chr(187).chr(165) => 'u', chr(225).chr(187).chr(176) => 'U', chr(225).chr(187).chr(177) => 'u', chr(225).chr(187).chr(180) => 'Y', chr(225).chr(187).chr(181) => 'y', // Vowels with diacritic (Chinese, Hanyu Pinyin) chr(201).chr(145) => 'a', // macron chr(199).chr(149) => 'U', chr(199).chr(150) => 'u', // acute accent chr(199).chr(151) => 'U', chr(199).chr(152) => 'u', // caron chr(199).chr(141) => 'A', chr(199).chr(142) => 'a', chr(199).chr(143) => 'I', chr(199).chr(144) => 'i', chr(199).chr(145) => 'O', chr(199).chr(146) => 'o', chr(199).chr(147) => 'U', chr(199).chr(148) => 'u', chr(199).chr(153) => 'U', chr(199).chr(154) => 'u', // grave accent chr(199).chr(155) => 'U', chr(199).chr(156) => 'u', ); // Used for locale-specific rules $locale = get_locale(); if ( 'de_DE' == $locale ) { $chars[ chr(195).chr(132) ] = 'Ae'; $chars[ chr(195).chr(164) ] = 'ae'; $chars[ chr(195).chr(150) ] = 'Oe'; $chars[ chr(195).chr(182) ] = 'oe'; $chars[ chr(195).chr(156) ] = 'Ue'; $chars[ chr(195).chr(188) ] = 'ue'; $chars[ chr(195).chr(159) ] = 'ss'; } elseif ( 'da_DK' === $locale ) { $chars[ chr(195).chr(134) ] = 'Ae'; $chars[ chr(195).chr(166) ] = 'ae'; $chars[ chr(195).chr(152) ] = 'Oe'; $chars[ chr(195).chr(184) ] = 'oe'; $chars[ chr(195).chr(133) ] = 'Aa'; $chars[ chr(195).chr(165) ] = 'aa'; } $string = strtr($string, $chars); } else { // Assume ISO-8859-1 if not UTF-8 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) .chr(252).chr(253).chr(255); $chars['out'] = "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy"; $string = strtr($string, $chars['in'], $chars['out']); $double_chars['in'] = array(chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254)); $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); $string = str_replace($double_chars['in'], $double_chars['out'], $string); } return $string; } /** * Sanitizes a filename, replacing whitespace with dashes. * * Removes special characters that are illegal in filenames on certain * operating systems and special characters requiring special escaping * to manipulate at the command line. Replaces spaces and consecutive * dashes with a single dash. Trims period, dash and underscore from beginning * and end of filename. * * @since 2.1.0 * * @param string $filename The filename to be sanitized * @return string The sanitized filename */ function sanitize_file_name( $filename ) { $filename_raw = $filename; $special_chars = array("?", "[", "]", "/", "\\", "=", "<", ">", ":", ";", ",", "'", "\"", "&", "$", "#", "*", "(", ")", "|", "~", "`", "!", "{", "}", chr(0)); /** * Filter the list of characters to remove from a filename. * * @since 2.8.0 * * @param array $special_chars Characters to remove. * @param string $filename_raw Filename as it was passed into sanitize_file_name(). */ $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 ) { /** * Filter a sanitized filename string. * * @since 2.8.0 * * @param string $filename Sanitized filename. * @param string $filename_raw The filename prior to sanitization. */ 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. Postfix 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; /** This filter is documented in wp-includes/formatting.php */ return apply_filters('sanitize_file_name', $filename, $filename_raw); } /** * Sanitizes a username, stripping out unsafe characters. * * 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 * * @param string $username The username to be sanitized. * @param bool $strict If set limits $username to specific characters. Default false. * @return string The sanitized username, after passing through filters. */ function sanitize_user( $username, $strict = false ) { $raw_username = $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 // If strict, reduce to ASCII for max portability. if ( $strict ) $username = preg_replace( '|[^a-z0-9 _.\-@]|i', '', $username ); $username = trim( $username ); // Consolidate contiguous whitespace $username = preg_replace( '|\s+|', ' ', $username ); /** * Filter a sanitized username string. * * @since 2.0.1 * * @param string $username Sanitized username. * @param string $raw_username The username prior to sanitization. * @param bool $strict Whether to limit the sanitization to specific characters. Default false. */ return apply_filters( 'sanitize_user', $username, $raw_username, $strict ); } /** * Sanitizes 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 ); /** * Filter a sanitized key string. * * @since 3.0.0 * * @param string $key Sanitized key. * @param string $raw_key The key prior to sanitization. */ return apply_filters( 'sanitize_key', $key, $raw_key ); } /** * Sanitizes a title, or returns a fallback title. * * Specifically, HTML and PHP tags are stripped. Further actions can be added * via the plugin API. If $title is empty and $fallback_title is set, the latter * will be used. * * @since 1.0.0 * * @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 = '', $context = 'save' ) { $raw_title = $title; if ( 'save' == $context ) $title = remove_accents($title); /** * Filter a sanitized title string. * * @since 1.2.0 * * @param string $title Sanitized title. * @param string $raw_title The title prior to sanitization. * @param string $context The context for which the title is being sanitized. */ $title = apply_filters( 'sanitize_title', $title, $raw_title, $context ); if ( '' === $title || false === $title ) $title = $fallback_title; return $title; } /** * Sanitizes a title with the 'query' context. * * Used for querying the database for a value from URL. * * @since 3.1.0 * @uses sanitize_title() * * @param string $title The string to be sanitized. * @return string The sanitized string. */ function sanitize_title_for_query( $title ) { return sanitize_title( $title, '', 'query' ); } /** * Sanitizes a 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, $raw_title = '', $context = 'display' ) { $title = strip_tags($title); // Preserve escaped octets. $title = preg_replace('|%([a-fA-F0-9][a-fA-F0-9])|', '---$1---', $title); // Remove percent signs that are not part of an octet. $title = str_replace('%', '', $title); // Restore octets. $title = preg_replace('|---([a-fA-F0-9][a-fA-F0-9])---|', '%$1', $title); if (seems_utf8($title)) { if (function_exists('mb_strtolower')) { $title = mb_strtolower($title, 'UTF-8'); } $title = utf8_uri_encode($title, 200); } $title = strtolower($title); $title = preg_replace('/&.+?;/', '', $title); // kill entities $title = str_replace('.', '-', $title); if ( 'save' == $context ) { // Convert nbsp, ndash and mdash to hyphens $title = str_replace( array( '%c2%a0', '%e2%80%93', '%e2%80%94' ), '-', $title ); // Strip these characters entirely $title = str_replace( array( // iexcl and iquest '%c2%a1', '%c2%bf', // angle quotes '%c2%ab', '%c2%bb', '%e2%80%b9', '%e2%80%ba', // curly quotes '%e2%80%98', '%e2%80%99', '%e2%80%9c', '%e2%80%9d', '%e2%80%9a', '%e2%80%9b', '%e2%80%9e', '%e2%80%9f', // copy, reg, deg, hellip and trade '%c2%a9', '%c2%ae', '%c2%b0', '%e2%80%a6', '%e2%84%a2', // acute accents '%c2%b4', '%cb%8a', '%cc%81', '%cd%81', // grave accent, macron, caron '%cc%80', '%cc%84', '%cc%8c', ), '', $title ); // Convert times to x $title = str_replace( '%c3%97', 'x', $title ); } $title = preg_replace('/[^%a-z0-9 _-]/', '', $title); $title = preg_replace('/\s+/', '-', $title); $title = preg_replace('|-+|', '-', $title); $title = trim($title, '-'); return $title; } /** * Ensures a string is a valid SQL order by clause. * * Accepts one or more columns, with or without ASC/DESC, and also accepts * RAND(). * * @since 2.5.1 * * @param string $orderby Order by string to be checked. * @return string|bool Returns the order by clause if it is a match, false otherwise. */ function sanitize_sql_orderby( $orderby ){ preg_match('/^\s*([a-z0-9_]+(\s+(ASC|DESC))?(\s*,\s*|\s*$))+|^\s*RAND\(\s*\)\s*$/i', $orderby, $obmatches); if ( !$obmatches ) return false; return $orderby; } /** * Sanitizes an 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 * 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 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 = '' ) { //Strip out any % encoded octets $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 ); if ( '' == $sanitized ) $sanitized = $fallback; /** * Filter a sanitized HTML class string. * * @since 2.8.0 * * @param string $sanitized The sanitized HTML class. * @param string $class HTML class before sanitization. * @param string $fallback The fallback string. */ return apply_filters( 'sanitize_html_class', $sanitized, $class, $fallback ); } /** * Converts a number of characters from a string. * * Metadata tags <> and <<category>> are removed, <<br>> and <<hr>> are * converted into correct XHTML and Unicode characters are converted to the * valid range. * * @since 0.71 * * @param string $content String of characters to be converted. * @param string $deprecated Not used. * @return string Converted string. */ function convert_chars($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 '' => '', '‚' => '‚', // these are Windows CP1252 specific characters 'ƒ' => 'ƒ', // they would look weird on non-Windows browsers '„' => '„', '…' => '…', '†' => '†', '‡' => '‡', 'ˆ' => 'ˆ', '‰' => '‰', 'Š' => 'Š', '‹' => '‹', 'Œ' => 'Œ', '' => '', 'Ž' => 'Ž', '' => '', '' => '', '‘' => '‘', '’' => '’', '“' => '“', '”' => '”', '•' => '•', '–' => '–', '—' => '—', '˜' => '˜', '™' => '™', 'š' => 'š', '›' => '›', 'œ' => 'œ', '' => '', 'ž' => 'ž', 'Ÿ' => 'Ÿ' ); // Remove metadata tags $content = preg_replace('/<title>(.+?)<\/title>/','',$content); $content = preg_replace('/<category>(.+?)<\/category>/','',$content); // Converts lone & characters into & (a.k.a. &) $content = preg_replace('/&([^#])(?![a-z1-4]{1,8};)/i', '&$1', $content); // Fix Word pasting $content = strtr($content, $wp_htmltranswinuni); // Just a little XHTML help $content = str_replace('<br>', '<br />', $content); $content = str_replace('<hr>', '<hr />', $content); return $content; } /** * Balances tags if forced to, or if the 'use_balanceTags' option is set to true. * * @since 0.71 * * @param string $text Text to be balanced * @param bool $force If true, forces balancing, ignoring the value of the option. Default false. * @return string Balanced text */ function balanceTags( $text, $force = false ) { if ( $force || get_option('use_balanceTags') == 1 ) { return force_balance_tags( $text ); } else { return $text; } } /** * Balances tags of string using a modified stack. * * @since 2.0.4 * * @author Leonard Lin <leonard@acm.org> * @license GPL * @copyright November 4, 2001 * @version 1.1 * @todo Make better - change loop condition to $text in 1.2 * @internal Modified by Scott Reilly (coffee2code) 02 Aug 2004 * 1.1 Fixed handling of append/stack pop order of end text * Added Cleaning Hooks * 1.0 First Version * * @param string $text Text to be balanced. * @return string Balanced text. */ function force_balance_tags( $text ) { $tagstack = array(); $stacksize = 0; $tagqueue = ''; $newtext = ''; // Known single-entity/self-closing tags $single_tags = array( 'area', 'base', 'basefont', 'br', 'col', 'command', 'embed', 'frame', 'hr', 'img', 'input', 'isindex', 'link', 'meta', 'param', 'source' ); // Tags that can be immediately nested within themselves $nestable_tags = array( 'blockquote', 'div', 'object', 'q', 'span' ); // 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) $text = preg_replace('#<([0-9]{1})#', '<$1', $text); while ( preg_match("/<(\/?[\w:]*)\s*([^>]*)>/", $text, $regex) ) { $newtext .= $tagqueue; $i = strpos($text, $regex[0]); $l = strlen($regex[0]); // clear the shifter $tagqueue = ''; // Pop or Push if ( isset($regex[1][0]) && '/' == $regex[1][0] ) { // End Tag $tag = strtolower(substr($regex[1],1)); // if too many closing tags if( $stacksize <= 0 ) { $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 $tag = '</' . $tag . '>'; // Close Tag // Pop array_pop( $tagstack ); $stacksize--; } else { // closing tag not at top, search for it 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 ) . '>'; $stacksize--; } break; } } $tag = ''; } } else { // Begin Tag $tag = strtolower($regex[1]); // Tag Cleaning // If it's an empty tag "< >", do nothing if ( '' == $tag ) { // do nothing } // ElseIf it presents itself as a self-closing tag... elseif ( substr( $regex[2], -1 ) == '/' ) { // ...but it isn't a known single-entity self-closing tag, then don't let it be treated as such and // immediately close it with a closing tag (the tag will encapsulate no text as a result) if ( ! in_array( $tag, $single_tags ) ) $regex[2] = trim( substr( $regex[2], 0, -1 ) ) . "></$tag"; } // 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 it's not a single-entity tag else { // 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 ) { $tagqueue = '</' . array_pop( $tagstack ) . '>'; $stacksize--; } $stacksize = array_push( $tagstack, $tag ); } // Attributes $attributes = $regex[2]; if( ! empty( $attributes ) && $attributes[0] != '>' ) $attributes = ' ' . $attributes; $tag = '<' . $tag . $attributes . '>'; //If already queuing a close tag, then put this tag on, too if ( !empty($tagqueue) ) { $tagqueue .= $tag; $tag = ''; } } $newtext .= substr($text, 0, $i) . $tag; $text = substr($text, $i + $l); } // Clear Tag Queue $newtext .= $tagqueue; // Add Remaining text $newtext .= $text; // Empty Stack while( $x = array_pop($tagstack) ) $newtext .= '</' . $x . '>'; // Add remaining tags to close // WP fix for the bug with HTML comments $newtext = str_replace("< !--","<!--",$newtext); $newtext = str_replace("< !--","< !--",$newtext); return $newtext; } /** * Acts on text which is about to be edited. * * The $content is run through esc_textarea(), which uses htmlspecialchars() * to convert special characters to HTML entities. If $richedit is set to true, * it is simply a holder for the 'format_to_edit' filter. * * @since 0.71 * * @param string $content The text about to be edited. * @param bool $richedit Whether the $content should not pass through htmlspecialchars(). Default false (meaning it will be passed). * @return string The text after the filter (and possibly htmlspecialchars()) has been run. */ function format_to_edit( $content, $richedit = false ) { /** * Filter the text to be formatted for editing. * * @since 1.2.0 * * @param string $content The text, prior to formatting for editing. */ $content = apply_filters( 'format_to_edit', $content ); if ( ! $richedit ) $content = esc_textarea( $content ); return $content; } /** * Holder for the 'format_to_post' filter. * * @since 0.71 * * @param string $content The text to pass through the filter. * @return string Text returned from the 'format_to_post' filter. */ function format_to_post($content) { /** * Filter the string returned by format_to_post(). * * @since 1.2.0 * * @param string $content The string to format. */ $content = apply_filters( 'format_to_post', $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 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 * and the size of the number. If the number is large enough, then no zeros will * be appended. * * @since 0.71 * * @param mixed $number Number to append zeros to if not greater than threshold. * @param int $threshold Digit places number needs to be to not have zeros added. * @return string Adds leading zeros to number if needed. */ function zeroise($number, $threshold) { return sprintf('%0'.$threshold.'s', $number); } /** * Adds backslashes before letters and before a number at the start of a string. * * @since 0.71 * * @param string $string Value to which backslashes will be added. * @return string String with backslashes inserted. */ function backslashit($string) { if ( isset( $string[0] ) && $string[0] >= '0' && $string[0] <= '9' ) $string = '\\\\' . $string; return addcslashes( $string, 'A..Za..z' ); } /** * Appends a trailing slash. * * Will remove trailing slash if it exists already before adding a trailing * slash. This prevents double slashing a string or path. * * The primary use of this is for paths and thus should be used for paths. It is * not restricted to paths and offers no specific path support. * * @since 1.2.0 * @uses untrailingslashit() Unslashes string if it was slashed already. * * @param string $string What to add the trailing slash to. * @return string String with trailing slash added. */ function trailingslashit($string) { return untrailingslashit($string) . '/'; } /** * Removes trailing slash if it exists. * * The primary use of this is for paths and thus should be used for paths. It is * not restricted to paths and offers no specific path support. * * @since 2.2.0 * * @param string $string What to remove the trailing slash from. * @return string String without the trailing slash. */ function untrailingslashit($string) { return rtrim($string, '/'); } /** * Adds slashes to escape strings. * * Slashes will first be removed if magic_quotes_gpc is set, see {@link * http://www.php.net/magic_quotes} for more details. * * @since 0.71 * * @param string $gpc The string returned from HTTP request data. * @return string Returns a string escaped with slashes. */ function addslashes_gpc($gpc) { if ( get_magic_quotes_gpc() ) $gpc = stripslashes($gpc); return wp_slash($gpc); } /** * Navigates through an array and removes slashes from the values. * * If an array is passed, the array_map() function causes a callback to pass the * value back to the function. The slashes from this value will removed. * * @since 2.0.0 * * @param mixed $value The value to be stripped. * @return mixed Stripped value. */ function stripslashes_deep($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 ); } } elseif ( is_string( $value ) ) { $value = stripslashes($value); } return $value; } /** * Navigates through an array and encodes the values to be used in a URL. * * * @since 2.2.0 * * @param array|string $value The array or string to be encoded. * @return array|string $value The encoded array (or string from the callback). */ function urlencode_deep($value) { $value = is_array($value) ? array_map('urlencode_deep', $value) : urlencode($value); return $value; } /** * Navigates through an array and raw encodes the values to be used in a URL. * * @since 3.4.0 * * @param array|string $value The array or string to be encoded. * @return array|string $value The encoded array (or string from the callback). */ function rawurlencode_deep( $value ) { return is_array( $value ) ? array_map( 'rawurlencode_deep', $value ) : rawurlencode( $value ); } /** * Converts email addresses characters to HTML entities to block spam bots. * * @since 0.71 * * @param string $email_address Email address. * @param int $hex_encoding Optional. Set to 1 to enable hex encoding. * @return string Converted email address. */ function antispambot( $email_address, $hex_encoding = 0 ) { $email_no_spam_address = ''; for ( $i = 0; $i < strlen( $email_address ); $i++ ) { $j = rand( 0, 1 + $hex_encoding ); if ( $j == 0 ) { $email_no_spam_address .= '&#' . ord( $email_address[$i] ) . ';'; } elseif ( $j == 1 ) { $email_no_spam_address .= $email_address[$i]; } elseif ( $j == 2 ) { $email_no_spam_address .= '%' . zeroise( dechex( ord( $email_address[$i] ) ), 2 ); } } $email_no_spam_address = str_replace( '@', '@', $email_no_spam_address ); return $email_no_spam_address; } /** * Callback to convert URI match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link * make_clickable()}. * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with URI address. */ function _make_url_clickable_cb($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>" . $suffix; } /** * Callback to convert URL match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link * make_clickable()}. * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with URL address. */ function _make_web_ftp_clickable_cb($matches) { $ret = ''; $dest = $matches[2]; $dest = 'http://' . $dest; $dest = esc_url($dest); if ( empty($dest) ) return $matches[0]; // removed trailing [.,;:)] from URL if ( in_array( substr($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"; } /** * Callback to convert email address match to HTML A element. * * This function was backported from 2.5.0 to 2.3.2. Regex callback for {@link * make_clickable()}. * * @since 2.3.2 * @access private * * @param array $matches Single Regex Match. * @return string HTML A element with email address. */ function _make_email_clickable_cb($matches) { $email = $matches[2] . '@' . $matches[3]; return $matches[1] . "<a href=\"mailto:$email\">$email</a>"; } /** * Convert plaintext URI to HTML links. * * Converts URI, www and ftp, and email addresses. Finishes by fixing links * within links. * * @since 0.71 * * @param string $text Content to convert URIs. * @return string Content with converted URIs. */ function make_clickable( $text ) { $r = ''; $textarr = preg_split( '/(<[^<>]+>)/', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // split out HTML tags $nested_code_pre = 0; // Keep track of how many levels link is nested inside <pre> or <code> foreach ( $textarr as $piece ) { if ( preg_match( '|^<code[\s>]|i', $piece ) || preg_match( '|^<pre[\s>]|i', $piece ) ) $nested_code_pre++; elseif ( ( '</code>' === strtolower( $piece ) || '</pre>' === strtolower( $piece ) ) && $nested_code_pre ) $nested_code_pre--; if ( $nested_code_pre || 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; } /** * Adds rel nofollow string to all HTML A elements in content. * * @since 1.5.0 * * @param string $text Content that may contain HTML A elements. * @return string Converted content. */ function wp_rel_nofollow( $text ) { // 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); $text = wp_slash($text); return $text; } /** * Callback to add rel=nofollow string to HTML A element. * * Will remove already existing rel="nofollow" and rel='nofollow' from the * string to prevent from invalidating (X)HTML. * * @since 2.3.0 * * @param array $matches Single Match * @return string HTML A Element with rel nofollow. */ function wp_rel_nofollow_callback( $matches ) { $text = $matches[1]; $text = str_replace(array(' rel="nofollow"', " rel='nofollow'"), '', $text); return "<a $text rel=\"nofollow\">"; } /** * Convert one smiley code to the icon graphic file equivalent. * * Callback handler for {@link convert_smilies()}. * Looks up one smiley code in the $wpsmiliestrans global array and returns an * <img> string for that smiley. * * @global array $wpsmiliestrans * @since 2.8.0 * * @param array $matches Single match. Smiley code to convert to image. * @return string Image string for smiley. */ function translate_smiley( $matches ) { global $wpsmiliestrans; if ( count( $matches ) == 0 ) return ''; $smiley = trim( reset( $matches ) ); $img = $wpsmiliestrans[ $smiley ]; /** * Filter the Smiley image URL before it's used in the image element. * * @since 2.9.0 * * @param string $smiley_url URL for the smiley image. * @param string $img Filename for the smiley image. * @param string $site_url Site URL, as returned by site_url(). */ $src_url = apply_filters( 'smilies_src', includes_url( "images/smilies/$img" ), $img, site_url() ); return sprintf( ' <img src="%s" alt="%s" class="wp-smiley" /> ', esc_url( $src_url ), esc_attr( $smiley ) ); } /** * Convert text equivalent of smilies to images. * * Will only convert smilies if the option 'use_smilies' is true and the global * used in the function isn't empty. * * @since 0.71 * @uses $wp_smiliessearch * * @param string $text Content to convert smilies from text. * @return string Converted content with text smilies replaced with images. */ function convert_smilies( $text ) { global $wp_smiliessearch; $output = ''; if ( get_option( 'use_smilies' ) && ! empty( $wp_smiliessearch ) ) { // HTML loop taken from texturize function, could possible be consolidated $textarr = preg_split( '/(<.*>)/U', $text, -1, PREG_SPLIT_DELIM_CAPTURE ); // capture the tags as well as in between $stop = count( $textarr );// loop stuff // Ignore proessing of specific tags $tags_to_ignore = 'code|pre|style|script|textarea'; $ignore_block_element = ''; for ( $i = 0; $i < $stop; $i++ ) { $content = $textarr[$i]; // If we're in an ignore block, wait until we find its closing tag if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) { $ignore_block_element = $matches[1]; } // If it's not a tag and not in ignore block if ( '' == $ignore_block_element && strlen( $content ) > 0 && '<' != $content[0] ) { $content = preg_replace_callback( $wp_smiliessearch, 'translate_smiley', $content ); } // did we exit ignore block if ( '' != $ignore_block_element && '</' . $ignore_block_element . '>' == $content ) { $ignore_block_element = ''; } $output .= $content; } } else { // return default text. $output = $text; } return $output; } /** * Verifies that an email is valid. * * Does not grok i18n domains. Not RFC compliant. * * @since 0.71 * * @param string $email Email address to verify. * @param boolean $deprecated Deprecated. * @return string|bool Either false or the valid email address. */ 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 ) { /** * Filter whether an email address is valid. * * This filter is evaluated under several different contexts, such as 'email_too_short', * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', * 'domain_no_periods', 'sub_hyphen_limits', 'sub_invalid_chars', or no specific context. * * @since 2.8.0 * * @param bool $is_email Whether the email address has passed the is_email() checks. Default false. * @param string $email The email address being checked. * @param string $message An explanatory message to the user. * @param string $context Context under which the email was tested. */ return apply_filters( 'is_email', false, $email, 'email_too_short' ); } // Test for an @ character after the first position if ( strpos( $email, '@', 1 ) === false ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'email_no_at' ); } // Split out the local and domain parts list( $local, $domain ) = explode( '@', $email, 2 ); // LOCAL PART // Test for invalid characters if ( !preg_match( '/^[a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]+$/', $local ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'local_invalid_chars' ); } // DOMAIN PART // Test for sequences of periods if ( preg_match( '/\.{2,}/', $domain ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_period_sequence' ); } // Test for leading and trailing periods and whitespace if ( trim( $domain, " \t\n\r\0\x0B." ) !== $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_period_limits' ); } // Split the domain into subs $subs = explode( '.', $domain ); // Assume the domain will have at least two subs if ( 2 > count( $subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'domain_no_periods' ); } // Loop through each sub foreach ( $subs as $sub ) { // Test for leading and trailing hyphens and whitespace if ( trim( $sub, " \t\n\r\0\x0B-" ) !== $sub ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'sub_hyphen_limits' ); } // Test for invalid characters if ( !preg_match('/^[a-z0-9-]+$/i', $sub ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', false, $email, 'sub_invalid_chars' ); } } // Congratulations your email made it! /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'is_email', $email, $email, null ); } /** * Convert to ASCII from email subjects. * * @since 1.2.0 * * @param string $string Subject line * @return string Converted string to ASCII */ function wp_iso_descrambler($string) { /* this may only work with iso-8859-1, I'm afraid */ if (!preg_match('#\=\?(.+)\?Q\?(.+)\?\=#i', $string, $matches)) { return $string; } else { $subject = str_replace('_', ' ', $matches[2]); $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 * @return array Converted chars */ 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. If there is a * timezone_string available, the date is assumed to be in that timezone, * otherwise it simply subtracts the value of the 'gmt_offset' option. Return * format can be overridden using the $format parameter. * * @since 1.2.0 * * @uses get_option() to retrieve 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, $format = 'Y-m-d H:i:s' ) { $tz = get_option( 'timezone_string' ); if ( $tz ) { $datetime = date_create( $string, new DateTimeZone( $tz ) ); if ( ! $datetime ) return gmdate( $format, 0 ); $datetime->setTimezone( new DateTimeZone( 'UTC' ) ); $string_gmt = $datetime->format( $format ); } else { if ( ! 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 ) ) return gmdate( $format, 0 ); $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' ) * HOUR_IN_SECONDS ); } return $string_gmt; } /** * Converts a GMT date into the correct format for the blog. * * Requires and returns a date in the Y-m-d H:i:s format. If there is a * timezone_string available, the returned date is in that timezone, otherwise * it simply adds the value of 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 timezone / GMT offset. */ function get_date_from_gmt( $string, $format = 'Y-m-d H:i:s' ) { $tz = get_option( 'timezone_string' ); if ( $tz ) { $datetime = date_create( $string, new DateTimeZone( 'UTC' ) ); if ( ! $datetime ) return date( $format, 0 ); $datetime->setTimezone( new DateTimeZone( $tz ) ); $string_localtime = $datetime->format( $format ); } else { if ( ! 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) ) return date( $format, 0 ); $string_time = gmmktime( $matches[4], $matches[5], $matches[6], $matches[2], $matches[3], $matches[1] ); $string_localtime = gmdate( $format, $string_time + get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); } return $string_localtime; } /** * Computes an offset in seconds from an iso8601 timezone. * * @since 1.5.0 * * @param string $timezone Either 'Z' for 0 offset or '±hhmm'. * @return int|float The offset in seconds. */ function iso8601_timezone_to_offset($timezone) { // $timezone is either 'Z' or '[+|-]hhmm' if ($timezone == 'Z') { $offset = 0; } else { $sign = (substr($timezone, 0, 1) == '+') ? 1 : -1; $hours = intval(substr($timezone, 1, 2)); $minutes = intval(substr($timezone, 3, 4)) / 60; $offset = $sign * HOUR_IN_SECONDS * ($hours + $minutes); } return $offset; } /** * Converts an iso8601 date to MySQL DateTime format used by post_date[_gmt]. * * @since 1.5.0 * * @param string $date_string Date and time in ISO 8601 format {@link http://en.wikipedia.org/wiki/ISO_8601}. * @param string $timezone Optional. If set to GMT returns the time minus gmt_offset. Default is 'user'. * @return string The date and time in MySQL DateTime format - Y-m-d H:i:s. */ function iso8601_to_datetime($date_string, $timezone = 'user') { $timezone = strtolower($timezone); if ($timezone == 'gmt') { preg_match('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', $date_string, $date_bits); if (!empty($date_bits[7])) { // we have a timezone, so let's compute an offset $offset = iso8601_timezone_to_offset($date_bits[7]); } else { // we don't have a timezone, so we assume user local timezone (not server's!) $offset = HOUR_IN_SECONDS * get_option('gmt_offset'); } $timestamp = gmmktime($date_bits[4], $date_bits[5], $date_bits[6], $date_bits[2], $date_bits[3], $date_bits[1]); $timestamp -= $offset; return gmdate('Y-m-d H:i:s', $timestamp); } else if ($timezone == 'user') { return preg_replace('#([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2}):([0-9]{2}):([0-9]{2})(Z|[\+|\-][0-9]{2,4}){0,1}#', '$1-$2-$3 $4:$5:$6', $date_string); } } /** * Adds a element attributes to open links in new windows. * * Comment text in popup windows should be filtered through this. Right now it's * a moderately dumb function, ideally it would detect whether a target or rel * attribute was already there and adjust its actions accordingly. * * @since 0.71 * * @param string $text Content to replace links to open in a new window. * @return string Content that has filtered links. */ function popuplinks($text) { $text = preg_replace('/<a (.+?)>/i', "<a $1 target='_blank' rel='external'>", $text); return $text; } /** * Strips out all characters that are not allowable in an email. * * @since 1.5.0 * * @param string $email Email address to filter. * @return string Filtered email address. */ function sanitize_email( $email ) { // Test for the minimum length the email can be if ( strlen( $email ) < 3 ) { /** * Filter a sanitized email address. * * This filter is evaluated under several contexts, including 'email_too_short', * 'email_no_at', 'local_invalid_chars', 'domain_period_sequence', 'domain_period_limits', * 'domain_no_periods', 'domain_no_valid_subs', or no context. * * @since 2.8.0 * * @param string $email The sanitized email address. * @param string $email The email address, as provided to sanitize_email(). * @param string $message A message to pass to the user. */ return apply_filters( 'sanitize_email', '', $email, 'email_too_short' ); } // Test for an @ character after the first position if ( strpos( $email, '@', 1 ) === false ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'email_no_at' ); } // Split out the local and domain parts list( $local, $domain ) = explode( '@', $email, 2 ); // LOCAL PART // Test for invalid characters $local = preg_replace( '/[^a-zA-Z0-9!#$%&\'*+\/=?^_`{|}~\.-]/', '', $local ); if ( '' === $local ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'local_invalid_chars' ); } // DOMAIN PART // Test for sequences of periods $domain = preg_replace( '/\.{2,}/', '', $domain ); if ( '' === $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_period_sequence' ); } // Test for leading and trailing periods and whitespace $domain = trim( $domain, " \t\n\r\0\x0B." ); if ( '' === $domain ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_period_limits' ); } // Split the domain into subs $subs = explode( '.', $domain ); // Assume the domain will have at least two subs if ( 2 > count( $subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_no_periods' ); } // Create an array that will contain valid subs $new_subs = array(); // Loop through each sub foreach ( $subs as $sub ) { // Test for leading and trailing hyphens $sub = trim( $sub, " \t\n\r\0\x0B-" ); // Test for invalid characters $sub = preg_replace( '/[^a-z0-9-]+/i', '', $sub ); // If there's anything left, add it to the valid subs if ( '' !== $sub ) { $new_subs[] = $sub; } } // If there aren't 2 or more valid subs if ( 2 > count( $new_subs ) ) { /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', '', $email, 'domain_no_valid_subs' ); } // Join valid subs into the new domain $domain = join( '.', $new_subs ); // Put the email back together $email = $local . '@' . $domain; // Congratulations your email made it! /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'sanitize_email', $email, $email, null ); } /** * Determines the difference between two timestamps. * * The difference is returned in a human readable format such as "1 hour", * "5 mins", "2 days". * * @since 1.5.0 * * @param int $from Unix timestamp from which the difference begins. * @param int $to Optional. Unix timestamp to end the time difference. Default becomes time() if not set. * @return string Human readable time difference. */ function human_time_diff( $from, $to = '' ) { if ( empty( $to ) ) $to = time(); $diff = (int) abs( $to - $from ); if ( $diff < HOUR_IN_SECONDS ) { $mins = round( $diff / MINUTE_IN_SECONDS ); if ( $mins <= 1 ) $mins = 1; /* translators: min=minute */ $since = sprintf( _n( '%s min', '%s mins', $mins ), $mins ); } elseif ( $diff < DAY_IN_SECONDS && $diff >= HOUR_IN_SECONDS ) { $hours = round( $diff / HOUR_IN_SECONDS ); if ( $hours <= 1 ) $hours = 1; $since = sprintf( _n( '%s hour', '%s hours', $hours ), $hours ); } elseif ( $diff < WEEK_IN_SECONDS && $diff >= DAY_IN_SECONDS ) { $days = round( $diff / DAY_IN_SECONDS ); if ( $days <= 1 ) $days = 1; $since = sprintf( _n( '%s day', '%s days', $days ), $days ); } elseif ( $diff < 30 * DAY_IN_SECONDS && $diff >= WEEK_IN_SECONDS ) { $weeks = round( $diff / WEEK_IN_SECONDS ); if ( $weeks <= 1 ) $weeks = 1; $since = sprintf( _n( '%s week', '%s weeks', $weeks ), $weeks ); } elseif ( $diff < YEAR_IN_SECONDS && $diff >= 30 * DAY_IN_SECONDS ) { $months = round( $diff / ( 30 * DAY_IN_SECONDS ) ); if ( $months <= 1 ) $months = 1; $since = sprintf( _n( '%s month', '%s months', $months ), $months ); } elseif ( $diff >= YEAR_IN_SECONDS ) { $years = round( $diff / YEAR_IN_SECONDS ); if ( $years <= 1 ) $years = 1; $since = sprintf( _n( '%s year', '%s years', $years ), $years ); } return $since; } /** * 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 * 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 $text Optional. The excerpt. If set to empty, an excerpt is generated. * @return string The excerpt. */ function wp_trim_excerpt($text = '') { $raw_excerpt = $text; if ( '' == $text ) { $text = get_the_content(''); $text = strip_shortcodes( $text ); /** This filter is documented in wp-includes/post-template.php */ $text = apply_filters( 'the_content', $text ); $text = str_replace(']]>', ']]>', $text); /** * Filter the number of words in an excerpt. * * @since 2.7.0 * * @param int $number The number of words. Default 55. */ $excerpt_length = apply_filters( 'excerpt_length', 55 ); /** * Filter the string in the "more" link displayed after a trimmed excerpt. * * @since 2.9.0 * * @param string $more_string The string shown within the more link. */ $excerpt_more = apply_filters( 'excerpt_more', ' ' . '[…]' ); $text = wp_trim_words( $text, $excerpt_length, $excerpt_more ); } /** * Filter the trimmed excerpt string. * * @since 2.8.0 * * @param string $text The trimmed text. * @param string $raw_excerpt The text prior to trimming. */ return apply_filters( 'wp_trim_excerpt', $text, $raw_excerpt ); } /** * Trims text to a certain number of words. * * This function is localized. For languages that count 'words' by the individual * character (such as East Asian languages), the $num_words argument will apply * to the number of individual characters. * * @since 3.3.0 * * @param string $text Text to trim. * @param int $num_words Number of words. Default 55. * @param string $more Optional. 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( $text ); /* translators: If your word count is based on single characters (East Asian characters), enter 'characters'. Otherwise, enter 'words'. Do not translate into your own language. */ if ( 'characters' == _x( 'words', 'word count: words or characters?' ) && preg_match( '/^utf\-?8$/i', get_option( 'blog_charset' ) ) ) { $text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' ); preg_match_all( '/./u', $text, $words_array ); $words_array = array_slice( $words_array[0], 0, $num_words + 1 ); $sep = ''; } else { $words_array = preg_split( "/[\n\r\t ]+/", $text, $num_words + 1, PREG_SPLIT_NO_EMPTY ); $sep = ' '; } if ( count( $words_array ) > $num_words ) { array_pop( $words_array ); $text = implode( $sep, $words_array ); $text = $text . $more; } else { $text = implode( $sep, $words_array ); } /** * Filter the text content after words have been trimmed. * * @since 3.3.0 * * @param string $text The trimmed text. * @param int $num_words The number of words to trim the text to. Default 5. * @param string $more An optional string to append to the end of the trimmed text, e.g. …. * @param string $original_text The text before it was trimmed. */ return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text ); } /** * Converts named entities into numbered entities. * * @since 1.5.1 * * @param string $text The text within which entities will be converted. * @return string Text with converted entities. */ function ent2ncr($text) { /** * Filter text before named entities are converted into numbered entities. * * A non-null string must be returned for the filter to be evaluated. * * @since 3.3.0 * * @param null $converted_text The text to be converted. Default null. * @param string $text The text prior to entity conversion. */ $filtered = apply_filters( 'pre_ent2ncr', null, $text ); if( null !== $filtered ) return $filtered; $to_ncr = array( '"' => '"', '&' => '&', '<' => '<', '>' => '>', '|' => '|', ' ' => ' ', '¡' => '¡', '¢' => '¢', '£' => '£', '¤' => '¤', '¥' => '¥', '¦' => '¦', '&brkbar;' => '¦', '§' => '§', '¨' => '¨', '¨' => '¨', '©' => '©', 'ª' => 'ª', '«' => '«', '¬' => '¬', '­' => '­', '®' => '®', '¯' => '¯', '&hibar;' => '¯', '°' => '°', '±' => '±', '²' => '²', '³' => '³', '´' => '´', 'µ' => 'µ', '¶' => '¶', '·' => '·', '¸' => '¸', '¹' => '¹', 'º' => 'º', '»' => '»', '¼' => '¼', '½' => '½', '¾' => '¾', '¿' => '¿', 'À' => 'À', 'Á' => 'Á', 'Â' => 'Â', 'Ã' => 'Ã', 'Ä' => 'Ä', 'Å' => 'Å', 'Æ' => 'Æ', 'Ç' => 'Ç', 'È' => 'È', 'É' => 'É', 'Ê' => 'Ê', 'Ë' => 'Ë', 'Ì' => 'Ì', 'Í' => 'Í', 'Î' => 'Î', 'Ï' => 'Ï', 'Ð' => 'Ð', 'Ñ' => 'Ñ', 'Ò' => 'Ò', 'Ó' => 'Ó', 'Ô' => 'Ô', 'Õ' => 'Õ', 'Ö' => 'Ö', '×' => '×', 'Ø' => 'Ø', 'Ù' => 'Ù', 'Ú' => 'Ú', 'Û' => 'Û', 'Ü' => 'Ü', 'Ý' => 'Ý', 'Þ' => 'Þ', 'ß' => 'ß', 'à' => 'à', 'á' => 'á', 'â' => 'â', 'ã' => 'ã', 'ä' => 'ä', 'å' => 'å', 'æ' => 'æ', 'ç' => 'ç', 'è' => 'è', 'é' => 'é', 'ê' => 'ê', 'ë' => 'ë', 'ì' => 'ì', 'í' => 'í', 'î' => 'î', 'ï' => 'ï', 'ð' => 'ð', 'ñ' => 'ñ', 'ò' => 'ò', 'ó' => 'ó', 'ô' => 'ô', 'õ' => 'õ', 'ö' => 'ö', '÷' => '÷', 'ø' => 'ø', 'ù' => 'ù', 'ú' => 'ú', 'û' => 'û', 'ü' => 'ü', 'ý' => 'ý', 'þ' => 'þ', 'ÿ' => 'ÿ', 'Œ' => 'Œ', 'œ' => 'œ', 'Š' => 'Š', 'š' => 'š', 'Ÿ' => 'Ÿ', 'ƒ' => 'ƒ', 'ˆ' => 'ˆ', '˜' => '˜', 'Α' => 'Α', 'Β' => 'Β', 'Γ' => 'Γ', 'Δ' => 'Δ', 'Ε' => 'Ε', 'Ζ' => 'Ζ', 'Η' => 'Η', 'Θ' => 'Θ', 'Ι' => 'Ι', 'Κ' => 'Κ', 'Λ' => 'Λ', 'Μ' => 'Μ', 'Ν' => 'Ν', 'Ξ' => 'Ξ', 'Ο' => 'Ο', 'Π' => 'Π', 'Ρ' => 'Ρ', 'Σ' => 'Σ', 'Τ' => 'Τ', 'Υ' => 'Υ', 'Φ' => 'Φ', 'Χ' => 'Χ', 'Ψ' => 'Ψ', 'Ω' => 'Ω', 'α' => 'α', 'β' => 'β', 'γ' => 'γ', 'δ' => 'δ', 'ε' => 'ε', 'ζ' => 'ζ', 'η' => 'η', 'θ' => 'θ', 'ι' => 'ι', 'κ' => 'κ', 'λ' => 'λ', 'μ' => 'μ', 'ν' => 'ν', 'ξ' => 'ξ', 'ο' => 'ο', 'π' => 'π', 'ρ' => 'ρ', 'ς' => 'ς', 'σ' => 'σ', 'τ' => 'τ', 'υ' => 'υ', 'φ' => 'φ', 'χ' => 'χ', 'ψ' => 'ψ', 'ω' => 'ω', 'ϑ' => 'ϑ', 'ϒ' => 'ϒ', 'ϖ' => 'ϖ', ' ' => ' ', ' ' => ' ', ' ' => ' ', '‌' => '‌', '‍' => '‍', '‎' => '‎', '‏' => '‏', '–' => '–', '—' => '—', '‘' => '‘', '’' => '’', '‚' => '‚', '“' => '“', '”' => '”', '„' => '„', '†' => '†', '‡' => '‡', '•' => '•', '…' => '…', '‰' => '‰', '′' => '′', '″' => '″', '‹' => '‹', '›' => '›', '‾' => '‾', '⁄' => '⁄', '€' => '€', 'ℑ' => 'ℑ', '℘' => '℘', 'ℜ' => 'ℜ', '™' => '™', 'ℵ' => 'ℵ', '↵' => '↵', '⇐' => '⇐', '⇑' => '⇑', '⇒' => '⇒', '⇓' => '⇓', '⇔' => '⇔', '∀' => '∀', '∂' => '∂', '∃' => '∃', '∅' => '∅', '∇' => '∇', '∈' => '∈', '∉' => '∉', '∋' => '∋', '∏' => '∏', '∑' => '∑', '−' => '−', '∗' => '∗', '√' => '√', '∝' => '∝', '∞' => '∞', '∠' => '∠', '∧' => '∧', '∨' => '∨', '∩' => '∩', '∪' => '∪', '∫' => '∫', '∴' => '∴', '∼' => '∼', '≅' => '≅', '≈' => '≈', '≠' => '≠', '≡' => '≡', '≤' => '≤', '≥' => '≥', '⊂' => '⊂', '⊃' => '⊃', '⊄' => '⊄', '⊆' => '⊆', '⊇' => '⊇', '⊕' => '⊕', '⊗' => '⊗', '⊥' => '⊥', '⋅' => '⋅', '⌈' => '⌈', '⌉' => '⌉', '⌊' => '⌊', '⌋' => '⌋', '⟨' => '〈', '⟩' => '〉', '←' => '←', '↑' => '↑', '→' => '→', '↓' => '↓', '↔' => '↔', '◊' => '◊', '♠' => '♠', '♣' => '♣', '♥' => '♥', '♦' => '♦' ); return str_replace( array_keys($to_ncr), array_values($to_ncr), $text ); } /** * Formats text for the rich text editor. * * The filter 'richedit_pre' is applied here. If $text is empty the filter will * be applied to an empty string. * * @since 2.0.0 * * @param string $text The text to be formatted. * @return string The formatted text after filter is applied. */ function wp_richedit_pre($text) { if ( empty( $text ) ) { /** * Filter text returned for the rich text editor. * * This filter is first evaluated, and the value returned, if an empty string * is passed to wp_richedit_pre(). If an empty string is passed, it results * in a break tag and line feed. * * If a non-empty string is passed, the filter is evaluated on the wp_richedit_pre() * return after being formatted. * * @since 2.0.0 * * @param string $output Text for the rich text editor. */ return apply_filters( 'richedit_pre', '' ); } $output = convert_chars($text); $output = wpautop($output); $output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) ); /** This filter is documented in wp-includes/formatting.php */ return apply_filters( 'richedit_pre', $output ); } /** * Formats text for the HTML editor. * * Unless $output is empty it will pass through htmlspecialchars before the * 'htmledit_pre' filter is applied. * * @since 2.5.0 * * @param string $output The text to be formatted. * @return string Formatted text after filter applied. */ function wp_htmledit_pre($output) { if ( !empty($output) ) $output = htmlspecialchars($output, ENT_NOQUOTES, get_option( 'blog_charset' ) ); // convert only < > & /** * Filter the text before it is formatted for the HTML editor. * * @since 2.5.0 * * @param string $output The HTML-formatted text. */ return apply_filters( 'htmledit_pre', $output ); } /** * 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 The value being searched for, otherwise known as the needle. An array may be used to designate multiple needles. * @param string $subject The string being searched and replaced on, otherwise known as the haystack. * @return string The string with the replaced svalues. */ function _deep_replace( $search, $subject ) { $subject = (string) $subject; $count = 1; while ( $count ) { $subject = str_replace( $search, '', $subject, $count ); } return $subject; } /** * Escapes data for use in a MySQL query. * * Usually you should prepare queries using wpdb::prepare(). * Sometimes, spot-escaping is required or useful. One example * is preparing an array for use in an IN clause. * * @since 2.8.0 * @param string|array $data Unescaped data * @return string|array Escaped data */ function esc_sql( $data ) { global $wpdb; return $wpdb->_escape( $data ); } /** * Checks and cleans a URL. * * A number of characters are removed from the URL. If the URL is for displaying * (the default behaviour) ampersands are also replaced. The 'clean_url' filter * is applied to the returned cleaned URL. * * @since 2.8.0 * @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', '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, $_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 ( '/' === $url[0] ) { $good_protocol_url = $url; } else { if ( ! is_array( $protocols ) ) $protocols = wp_allowed_protocols(); $good_protocol_url = wp_kses_bad_protocol( $url, $protocols ); if ( strtolower( $good_protocol_url ) != strtolower( $url ) ) return ''; } /** * Filter a string cleaned and escaped for output as a URL. * * @since 2.3.0 * * @param string $good_protocol_url The cleaned URL to be returned. * @param string $original_url The URL prior to cleaning. * @param string $_context If 'display', replace ampersands and single quotes only. */ return apply_filters( 'clean_url', $good_protocol_url, $original_url, $_context ); } /** * Performs esc_url() for database usage. * * @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 esc_url( $url, $protocols, 'db' ); } /** * Convert entities, while preserving already-encoded entities. * * @link http://www.php.net/htmlentities Borrowed from the PHP Manual user notes. * * @since 1.2.2 * * @param string $myHTML The text to be converted. * @return string Converted text. */ function htmlentities2($myHTML) { $translation_table = get_html_translation_table( HTML_ENTITIES, ENT_QUOTES ); $translation_table[chr(38)] = '&'; return preg_replace( "/&(?![A-Za-z]{0,4}\w{2,3};|#[0-9]{2,3};)/", "&", strtr($myHTML, $translation_table) ); } /** * Escape single quotes, htmlspecialchar " < > &, and fix line endings. * * 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 * * @param string $text The text to be escaped. * @return string Escaped text. */ function esc_js( $text ) { $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 = str_replace( "\r", '', $safe_text ); $safe_text = str_replace( "\n", '\\n', addslashes( $safe_text ) ); /** * Filter a string cleaned and escaped for output in JavaScript. * * Text passed to esc_js() is stripped of invalid or special characters, * and properly slashed for output. * * @since 2.0.6 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'js_escape', $safe_text, $text ); } /** * Escaping for HTML blocks. * * @since 2.8.0 * * @param string $text * @return string */ function esc_html( $text ) { $safe_text = wp_check_invalid_utf8( $text ); $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); /** * Filter a string cleaned and escaped for output in HTML. * * Text passed to esc_html() is stripped of invalid or special characters * before output. * * @since 2.8.0 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'esc_html', $safe_text, $text ); } /** * Escaping for HTML attributes. * * @since 2.8.0 * * @param string $text * @return string */ function esc_attr( $text ) { $safe_text = wp_check_invalid_utf8( $text ); $safe_text = _wp_specialchars( $safe_text, ENT_QUOTES ); /** * Filter a string cleaned and escaped for output in an HTML attribute. * * Text passed to esc_attr() is stripped of invalid or special characters * before output. * * @since 2.0.6 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'attribute_escape', $safe_text, $text ); } /** * Escaping for textarea values. * * @since 3.1.0 * * @param string $text * @return string */ function esc_textarea( $text ) { $safe_text = htmlspecialchars( $text, ENT_QUOTES, get_option( 'blog_charset' ) ); /** * Filter a string cleaned and escaped for output in a textarea element. * * @since 3.1.0 * * @param string $safe_text The text after it has been escaped. * @param string $text The text prior to being escaped. */ return apply_filters( 'esc_textarea', $safe_text, $text ); } /** * Escape an HTML tag name. * * @since 2.5.0 * * @param string $tag_name * @return string */ function tag_escape($tag_name) { $safe_tag = strtolower( preg_replace('/[^a-zA-Z0-9_:]/', '', $tag_name) ); /** * Filter a string cleaned and escaped for output as an HTML tag. * * @since 2.8.0 * * @param string $safe_tag The tag name after it has been escaped. * @param string $tag_name The text before it was escaped. */ return apply_filters( 'tag_escape', $safe_tag, $tag_name ); } /** * Escapes text for SQL LIKE special characters % and _. * * @since 2.5.0 * * @param string $text The text to be escaped. * @return string text, safe for inclusion in LIKE query. */ function like_escape($text) { return str_replace(array("%", "_"), array("\\%", "\\_"), $text); } /** * Convert full URL paths to absolute paths. * * Removes the http or https protocols and the domain. Keeps the path '/' at the * beginning, so it isn't a true relative link, but from the web root base. * * @since 2.1.0 * * @param string $link Full URL path. * @return string Absolute path. */ function wp_make_link_relative( $link ) { return preg_replace( '|https?://[^/]+(/.*)|i', '$1', $link ); } /** * Sanitises various option values based on the nature of the option. * * This is basically a switch statement which will pass $value through a number * of functions depending on the $option. * * @since 2.0.5 * * @param string $option The name of the option. * @param string $value The unsanitised value. * @return string Sanitized value. */ function sanitize_option($option, $value) { switch ( $option ) { case 'admin_email' : 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( $option, '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 'thumbnail_size_h': case 'medium_size_w': case 'medium_size_h': case 'large_size_w': case 'large_size_h': 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 'default_link_category': case 'close_comments_days_old': case 'comments_per_page': case 'thread_comments_depth': case 'users_can_register': case 'start_of_week': $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); break; case 'default_ping_status': case 'default_comment_status': // Options that if not there have 0 value but need to be something like "closed" if ( $value == '0' || $value == '') $value = 'closed'; break; case 'blogdescription': case 'blogname': $value = wp_kses_post( $value ); $value = esc_html( $value ); break; case 'blog_charset': $value = preg_replace('/[^a-zA-Z0-9_-]/', '', $value); // strips slashes break; case 'blog_public': // This is the value if the settings checkbox is not checked on POST. Don't rely on this. if ( null === $value ) $value = 1; else $value = intval( $value ); break; case 'date_format': case 'time_format': case 'mailserver_url': case 'mailserver_login': case 'mailserver_pass': case 'upload_path': $value = strip_tags( $value ); $value = wp_kses_data( $value ); break; case 'ping_sites': $value = explode( "\n", $value ); $value = array_filter( array_map( 'trim', $value ) ); $value = array_filter( array_map( 'esc_url_raw', $value ) ); $value = implode( "\n", $value ); break; case 'gmt_offset': $value = preg_replace('/[^0-9:.-]/', '', $value); // strips slashes 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': 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; case 'WPLANG': $allowed = get_available_languages(); if ( ! in_array( $value, $allowed ) && ! empty( $value ) ) $value = get_option( $option ); break; case 'illegal_names': if ( ! is_array( $value ) ) $value = explode( ' ', $value ); $value = array_values( array_filter( array_map( 'trim', $value ) ) ); if ( ! $value ) $value = ''; break; case 'limited_email_domains': case 'banned_email_domains': if ( ! is_array( $value ) ) $value = explode( "\n", $value ); $domains = array_values( array_filter( array_map( 'trim', $value ) ) ); $value = array(); foreach ( $domains as $domain ) { if ( ! preg_match( '/(--|\.\.)/', $domain ) && preg_match( '|^([a-zA-Z0-9-\.])+$|', $domain ) ) $value[] = $domain; } if ( ! $value ) $value = ''; 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; case 'default_role' : if ( ! get_role( $value ) && get_role( 'subscriber' ) ) $value = 'subscriber'; break; } /** * Filter an option value following sanitization. * * @since 2.3.0 * * @param string $value The sanitized option value. * @param string $option The option name. */ $value = apply_filters( "sanitize_option_{$option}", $value, $option ); return $value; } /** * Parses a string into variables to be stored in an array. * * Uses {@link http://www.php.net/parse_str parse_str()} and stripslashes if * {@link http://www.php.net/magic_quotes magic_quotes_gpc} is on. * * @since 2.2.1 * * @param string $string The string to be parsed. * @param array $array Variables will be stored in this array. */ function wp_parse_str( $string, &$array ) { parse_str( $string, $array ); if ( get_magic_quotes_gpc() ) $array = stripslashes_deep( $array ); /** * Filter the array of variables derived from a parsed string. * * @since 2.3.0 * * @param array $array The array populated with variables. */ $array = apply_filters( 'wp_parse_str', $array ); } /** * Convert lone less than signs. * * KSES already converts lone greater than signs. * * @uses wp_pre_kses_less_than_callback in the callback function. * @since 2.3.0 * * @param string $text Text to be converted. * @return string Converted text. */ function wp_pre_kses_less_than( $text ) { return preg_replace_callback('%<[^>]*?((?=<)|>|$)%', 'wp_pre_kses_less_than_callback', $text); } /** * Callback function used by preg_replace. * * @uses esc_html to format the $matches text. * @since 2.3.0 * * @param array $matches Populated by matches to preg_replace. * @return string The text returned after esc_html if needed. */ function wp_pre_kses_less_than_callback( $matches ) { if ( false === strpos($matches[0], '>') ) return esc_html($matches[0]); return $matches[0]; } /** * WordPress implementation of PHP sprintf() with filters. * * @since 2.5.0 * @link http://www.php.net/sprintf * * @param string $pattern The string which formatted args are inserted. * @param mixed $args,... Arguments to be formatted into the $pattern string. * @return string The formatted string. */ function wp_sprintf( $pattern ) { $args = func_get_args(); $len = strlen($pattern); $start = 0; $result = ''; $arg_index = 0; while ( $len > $start ) { // Last character: append and break if ( strlen($pattern) - 1 == $start ) { $result .= substr($pattern, -1); break; } // Literal %: append and continue if ( substr($pattern, $start, 2) == '%%' ) { $start += 2; $result .= '%'; continue; } // Get fragment before next % $end = strpos($pattern, '%', $start + 1); if ( false === $end ) $end = $len; $fragment = substr($pattern, $start, $end - $start); // Fragment has a specifier 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]] : ''; $fragment = str_replace("%{$matches[1]}$", '%', $fragment); } else { ++$arg_index; $arg = isset($args[$arg_index]) ? $args[$arg_index] : ''; } /** * Filter a fragment from the pattern passed to wp_sprintf(). * * If the fragment is unchanged, then sprintf() will be run on the fragment. * * @since 2.5.0 * * @param string $fragment A fragment from the pattern. * @param string $arg The argument. */ $_fragment = apply_filters( 'wp_sprintf', $fragment, $arg ); if ( $_fragment != $fragment ) $fragment = $_fragment; else $fragment = sprintf($fragment, strval($arg) ); } // Append to result and move to next fragment $result .= $fragment; $start = $end; } return $result; } /** * Localize list items before the rest of the content. * * The '%l' must be at the first characters can then contain the rest of the * content. The list items will have ', ', ', and', and ' and ' added depending * on the amount of list items in the $args parameter. * * @since 2.5.0 * * @param string $pattern Content containing '%l' at the beginning. * @param array $args List items to prepend to the content and replace '%l'. * @return string Localized list items and rest of the content. */ function wp_sprintf_l($pattern, $args) { // Not a match if ( substr($pattern, 0, 2) != '%l' ) return $pattern; // Nothing to work with if ( empty($args) ) return ''; /** * Filter the translated delimiters used by wp_sprintf_l(). * * Please note: Ampersands and entities should be avoided here. * * @since 2.5.0 * * @param array $delimiters An array of translated delimiters. */ $l = apply_filters( 'wp_sprintf_l', array( /* 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 '), /* translators: used between only two list items, there is a space after the and */ 'between_only_two' => __(' and '), ) ); $args = (array) $args; $result = array_shift($args); if ( count($args) == 1 ) $result .= $l['between_only_two'] . array_shift($args); // Loop when more than two args $i = count($args); while ( $i ) { $arg = array_shift($args); $i--; if ( 0 == $i ) $result .= $l['between_last_two'] . $arg; else $result .= $l['between'] . $arg; } return $result . substr($pattern, 2); } /** * Safely extracts not more than the first $count characters from html string. * * UTF-8, tags and entities safe prefix extraction. Entities inside will *NOT* * be counted as one character. For example & will be counted as 4, < as * 3, etc. * * @since 2.5.0 * * @param string $str String to get the excerpt from. * @param integer $count Maximum number of characters to take. * @param string $more Optional. What to append if $str needs to be trimmed. Defaults to empty string. * @return string The excerpt. */ function wp_html_excerpt( $str, $count, $more = null ) { if ( null === $more ) $more = ''; $str = wp_strip_all_tags( $str, true ); $excerpt = mb_substr( $str, 0, $count ); // remove part of an entity at the end $excerpt = preg_replace( '/&[^;\s]{0,6}$/', '', $excerpt ); if ( $str != $excerpt ) $excerpt = trim( $excerpt ) . $more; return $excerpt; } /** * Add a Base url to relative links in passed content. * * By default it supports the 'src' and 'href' attributes. However this can be * changed via the 3rd param. * * @since 2.7.0 * * @param string $content String to search for links in. * @param string $base The base URL to prefix to links. * @param array $attrs The attributes which should be processed. * @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", '_links_add_base', $content ); } /** * Callback to add a base url to relative links in passed content. * * @since 2.7.0 * @access private * * @param string $m The matched link. * @return string The processed link. */ function _links_add_base($m) { global $_links_add_base; //1 = attribute name 2 = quotation mark 3 = URL return $m[1] . '=' . $m[2] . ( preg_match( '#^(\w{1,20}):#', $m[3], $protocol ) && in_array( $protocol[1], wp_allowed_protocols() ) ? $m[3] : path_join( $_links_add_base, $m[3] ) ) . $m[2]; } /** * Adds a Target attribute to all links in passed content. * * 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 stripped and replaced. * * @since 2.7.0 * * @param string $content String to search for links in. * @param string $target The Target to add to the links. * @param array $tags An array of tags to apply to. * @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", '_links_add_target', $content ); } /** * Callback to add a target attribute to all links in passed content. * * @since 2.7.0 * @access private * * @param string $m The matched link. * @return string The processed link. */ function _links_add_target( $m ) { global $_links_add_target; $tag = $m[1]; $link = preg_replace('|( target=([\'"])(.*?)\2)|i', '', $m[2]); return '<' . $tag . $link . ' target="' . esc_attr( $_links_add_target ) . '">'; } /** * Normalize EOL characters and strip duplicate whitespace. * * @since 2.7.0 * * @param string $str The string to normalize. * @return string The normalized string. */ function normalize_whitespace( $str ) { $str = trim( $str ); $str = str_replace( "\r", "\n", $str ); $str = preg_replace( array( '/\n+/', '/[ \t]+/' ), array( "\n", ' ' ), $str ); 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) ); } $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) ); } /** * Filter a sanitized text field string. * * @since 2.9.0 * * @param string $filtered The sanitized string. * @param string $str The string prior to being sanitized. */ 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( array( '%2F', '%5C' ), '/', 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 $current_filter = current_filter(); if ( 'the_title' === $current_filter || 'wp_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 double 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 ); /** * Filter a mime type following sanitization. * * @since 3.1.3 * * @param string $sani_mime_type The sanitized mime type. * @param string $mime_type The mime type prior to sanitization. */ return apply_filters( 'sanitize_mime_type', $sani_mime_type, $mime_type ); } /** * Sanitize space or carriage return separated URLs that are used to send trackbacks. * * @since 3.4.0 * * @param string $to_ping Space or carriage return separated URLs * @return string URLs starting with the http or https protocol, separated by a carriage return. */ function sanitize_trackback_urls( $to_ping ) { $urls_to_ping = preg_split( '/[\r\n\t ]/', trim( $to_ping ), -1, PREG_SPLIT_NO_EMPTY ); foreach ( $urls_to_ping as $k => $url ) { if ( !preg_match( '#^https?://.#i', $url ) ) unset( $urls_to_ping[$k] ); } $urls_to_ping = array_map( 'esc_url_raw', $urls_to_ping ); $urls_to_ping = implode( "\n", $urls_to_ping ); /** * Filter a list of trackback URLs following sanitization. * * The string returned here consists of a space or carriage return-delimited list * of trackback URLs. * * @since 3.4.0 * * @param string $urls_to_ping Sanitized space or carriage return separated URLs. * @param string $to_ping Space or carriage return separated URLs before sanitization. */ return apply_filters( 'sanitize_trackback_urls', $urls_to_ping, $to_ping ); } /** * Add slashes to a string or array of strings. * * This should be used when preparing data for core API that expects slashed data. * This should not be used to escape data going directly into an SQL query. * * @since 3.6.0 * * @param string|array $value String or array of strings to slash. * @return string|array Slashed $value */ function wp_slash( $value ) { if ( is_array( $value ) ) { foreach ( $value as $k => $v ) { if ( is_array( $v ) ) { $value[$k] = wp_slash( $v ); } else { $value[$k] = addslashes( $v ); } } } else { $value = addslashes( $value ); } return $value; } /** * Remove slashes from a string or array of strings. * * This should be used to remove slashes from data passed to core API that * expects data to be unslashed. * * @since 3.6.0 * * @param string|array $value String or array of strings to unslash. * @return string|array Unslashed $value */ function wp_unslash( $value ) { return stripslashes_deep( $value ); } /** * Extract and return the first URL from passed content. * * @since 3.6.0 * * @param string $content A string which might contain a URL. * @return string The found URL. */ function get_url_in_content( $content ) { if ( empty( $content ) ) return ''; if ( preg_match( '/<a\s[^>]*?href=([\'"])(.+?)\1/is', $content, $matches ) ) return esc_url_raw( $matches[2] ); return false; } ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������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if ( $cache = wp_cache_get( $cache_key, 'comment' ) ) return $cache; $post_id = absint($post_id); if ( 'hold' == $status ) $approved = "comment_approved = '0'"; elseif ( 'approve' == $status ) $approved = "comment_approved = '1'"; elseif ( ! empty( $status ) && 'all' != $status ) $approved = $wpdb->prepare( "comment_approved = %s", $status ); else $approved = "( comment_approved = '0' OR comment_approved = '1' )"; $order = ( 'ASC' == strtoupper($order) ) ? 'ASC' : 'DESC'; if ( ! empty( $orderby ) ) { $ordersby = is_array($orderby) ? $orderby : preg_split('/[,\s]/', $orderby); $allowed_keys = array( 'comment_agent', 'comment_approved', 'comment_author', 'comment_author_email', 'comment_author_IP', 'comment_author_url', 'comment_content', 'comment_date', 'comment_date_gmt', 'comment_ID', 'comment_karma', 'comment_parent', 'comment_post_ID', 'comment_type', 'user_id', ); if ( ! empty( $this->query_vars['meta_key'] ) ) { $allowed_keys[] = $this->query_vars['meta_key']; $allowed_keys[] = 'meta_value'; $allowed_keys[] = 'meta_value_num'; } $ordersby = array_intersect( $ordersby, $allowed_keys ); foreach ( $ordersby as $key => $value ) { if ( $value == $this->query_vars['meta_key'] || $value == 'meta_value' ) { $ordersby[ $key ] = "$wpdb->commentmeta.meta_value"; } elseif ( $value == 'meta_value_num' ) { $ordersby[ $key ] = "$wpdb->commentmeta.meta_value+0"; } } $orderby = empty( $ordersby ) ? 'comment_date_gmt' : implode(', ', $ordersby); } else { $orderby = 'comment_date_gmt'; } $number = absint($number); $offset = absint($offset); if ( !empty($number) ) { if ( $offset ) $limits = 'LIMIT ' . $offset . ',' . $number; else $limits = 'LIMIT ' . $number; } else { $limits = ''; } if ( $count ) $fields = 'COUNT(*)'; else $fields = '*'; $join = ''; $where = $approved; if ( ! empty($post_id) ) $where .= $wpdb->prepare( ' AND comment_post_ID = %d', $post_id ); if ( '' !== $author_email ) $where .= $wpdb->prepare( ' AND comment_author_email = %s', $author_email ); if ( '' !== $karma ) $where .= $wpdb->prepare( ' AND comment_karma = %d', $karma ); if ( 'comment' == $type ) { $where .= " AND comment_type = ''"; } elseif( 'pings' == $type ) { $where .= ' AND comment_type IN ("pingback", "trackback")'; } elseif ( ! empty( $type ) ) { $where .= $wpdb->prepare( ' AND comment_type = %s', $type ); } if ( '' !== $parent ) $where .= $wpdb->prepare( ' AND comment_parent = %d', $parent ); if ( '' !== $user_id ) $where .= $wpdb->prepare( ' AND user_id = %d', $user_id ); if ( '' !== $search ) $where .= $this->get_search_sql( $search, array( 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_content' ) ); $post_fields = array_filter( compact( array( 'post_author', 'post_name', 'post_parent', 'post_status', 'post_type', ) ) ); if ( ! empty( $post_fields ) ) { $join = "JOIN $wpdb->posts ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID"; foreach( $post_fields as $field_name => $field_value ) $where .= $wpdb->prepare( " AND {$wpdb->posts}.{$field_name} = %s", $field_value ); } if ( ! empty( $this->meta_query->queries ) ) { $clauses = $this->meta_query->get_sql( 'comment', $wpdb->comments, 'comment_ID', $this ); $join .= $clauses['join']; $where .= $clauses['where']; $groupby = "{$wpdb->comments}.comment_ID"; } if ( ! empty( $date_query ) && is_array( $date_query ) ) { $date_query_object = new WP_Date_Query( $date_query, 'comment_date' ); $where .= $date_query_object->get_sql(); } $pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits', 'groupby' ); /** * Filter the comment query clauses. * * @since 3.1.0 * * @param array $pieces A compacted array of comment query clauses. * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. */ $clauses = apply_filters_ref_array( 'comments_clauses', array( compact( $pieces ), &$this ) ); foreach ( $pieces as $piece ) $$piece = isset( $clauses[ $piece ] ) ? $clauses[ $piece ] : ''; if ( $groupby ) $groupby = 'GROUP BY ' . $groupby; $query = "SELECT $fields FROM $wpdb->comments $join WHERE $where $groupby ORDER BY $orderby $order $limits"; if ( $count ) return $wpdb->get_var( $query ); $comments = $wpdb->get_results( $query ); /** * Filter the comment query results. * * @since 3.1.0 * * @param array $comments An array of comments. * @param WP_Comment_Query &$this Current instance of WP_Comment_Query, passed by reference. */ $comments = apply_filters_ref_array( 'the_comments', array( $comments, &$this ) ); wp_cache_add( $cache_key, $comments, 'comment' ); return $comments; } /** * Used internally to generate an SQL string for searching across multiple columns * * @access protected * @since 3.1.0 * * @param string $string * @param array $cols * @return string */ function get_search_sql( $string, $cols ) { $string = esc_sql( like_escape( $string ) ); $searches = array(); foreach ( $cols as $col ) $searches[] = "$col LIKE '%$string%'"; return ' AND (' . implode(' OR ', $searches) . ')'; } } /** * Retrieve all of the WordPress supported comment statuses. * * Comments have a limited set of valid status values, this provides the comment * status values and descriptions. * * @package WordPress * @subpackage Post * @since 2.7.0 * * @return array List of comment statuses. */ function get_comment_statuses() { $status = array( 'hold' => __('Unapproved'), /* translators: comment status */ 'approve' => _x('Approved', 'adjective'), /* translators: comment status */ 'spam' => _x('Spam', 'adjective'), ); return $status; } /** * The date the last comment was modified. * * @since 1.5.0 * @uses $wpdb * * @param string $timezone Which timezone to use in reference to 'gmt', 'blog', * or 'server' locations. * @return string Last comment modified date. */ function get_lastcommentmodified($timezone = 'server') { global $wpdb; static $cache_lastcommentmodified = array(); if ( isset($cache_lastcommentmodified[$timezone]) ) return $cache_lastcommentmodified[$timezone]; $add_seconds_server = date('Z'); switch ( strtolower($timezone)) { case 'gmt': $lastcommentmodified = $wpdb->get_var("SELECT comment_date_gmt FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); break; case 'blog': $lastcommentmodified = $wpdb->get_var("SELECT comment_date FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1"); break; case 'server': $lastcommentmodified = $wpdb->get_var($wpdb->prepare("SELECT DATE_ADD(comment_date_gmt, INTERVAL %s SECOND) FROM $wpdb->comments WHERE comment_approved = '1' ORDER BY comment_date_gmt DESC LIMIT 1", $add_seconds_server)); break; } $cache_lastcommentmodified[$timezone] = $lastcommentmodified; return $lastcommentmodified; } /** * The amount of comments in a post or total comments. * * A lot like {@link wp_count_comments()}, in that they both return comment * stats (albeit with different types). The {@link wp_count_comments()} actual * caches, but this function does not. * * @since 2.0.0 * @uses $wpdb * * @param int $post_id Optional. Comment amount in post if > 0, else total comments blog wide. * @return array The amount of spam, approved, awaiting moderation, and total comments. */ function get_comment_count( $post_id = 0 ) { global $wpdb; $post_id = (int) $post_id; $where = ''; if ( $post_id > 0 ) { $where = $wpdb->prepare("WHERE comment_post_ID = %d", $post_id); } $totals = (array) $wpdb->get_results(" SELECT comment_approved, COUNT( * ) AS total FROM {$wpdb->comments} {$where} GROUP BY comment_approved ", ARRAY_A); $comment_count = array( "approved" => 0, "awaiting_moderation" => 0, "spam" => 0, "total_comments" => 0 ); foreach ( $totals as $row ) { switch ( $row['comment_approved'] ) { case 'spam': $comment_count['spam'] = $row['total']; $comment_count["total_comments"] += $row['total']; break; case 1: $comment_count['approved'] = $row['total']; $comment_count['total_comments'] += $row['total']; break; case 0: $comment_count['awaiting_moderation'] = $row['total']; $comment_count['total_comments'] += $row['total']; break; default: break; } } return $comment_count; } // // Comment meta functions // /** * Add meta data field to a comment. * * @since 2.9.0 * @uses add_metadata * @link http://codex.wordpress.org/Function_Reference/add_comment_meta * * @param int $comment_id Comment ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Metadata value. * @param bool $unique Optional, default is false. Whether the same key should not be added. * @return int|bool Meta ID on success, false on failure. */ function add_comment_meta($comment_id, $meta_key, $meta_value, $unique = false) { return add_metadata('comment', $comment_id, $meta_key, $meta_value, $unique); } /** * Remove metadata matching criteria from a comment. * * You can match based on the key, or key and value. Removing based on key and * value, will keep from removing duplicate metadata with the same key. It also * allows removing all metadata matching key, if needed. * * @since 2.9.0 * @uses delete_metadata * @link http://codex.wordpress.org/Function_Reference/delete_comment_meta * * @param int $comment_id comment ID * @param string $meta_key Metadata name. * @param mixed $meta_value Optional. Metadata value. * @return bool True on success, false on failure. */ function delete_comment_meta($comment_id, $meta_key, $meta_value = '') { return delete_metadata('comment', $comment_id, $meta_key, $meta_value); } /** * Retrieve comment meta field for a comment. * * @since 2.9.0 * @uses get_metadata * @link http://codex.wordpress.org/Function_Reference/get_comment_meta * * @param int $comment_id Comment ID. * @param string $key Optional. The meta key to retrieve. By default, returns data for all keys. * @param bool $single Whether to return a single value. * @return mixed Will be an array if $single is false. Will be value of meta data field if $single * is true. */ function get_comment_meta($comment_id, $key = '', $single = false) { return get_metadata('comment', $comment_id, $key, $single); } /** * Update comment meta field based on comment ID. * * Use the $prev_value parameter to differentiate between meta fields with the * same key and comment ID. * * If the meta field for the comment does not exist, it will be added. * * @since 2.9.0 * @uses update_metadata * @link http://codex.wordpress.org/Function_Reference/update_comment_meta * * @param int $comment_id Comment ID. * @param string $meta_key Metadata key. * @param mixed $meta_value Metadata value. * @param mixed $prev_value Optional. Previous value to check before removing. * @return bool True on success, false on failure. */ function update_comment_meta($comment_id, $meta_key, $meta_value, $prev_value = '') { return update_metadata('comment', $comment_id, $meta_key, $meta_value, $prev_value); } /** * Sets the cookies used to store an unauthenticated commentator's identity. Typically used * to recall previous comments by this commentator that are still held in moderation. * * @param object $comment Comment object. * @param object $user Comment author's object. * * @since 3.4.0 */ function wp_set_comment_cookies($comment, $user) { if ( $user->exists() ) return; /** * Filter the lifetime of the comment cookie in seconds. * * @since 2.8.0 * * @param int $seconds Comment cookie lifetime. Default 30000000. */ $comment_cookie_lifetime = apply_filters( 'comment_cookie_lifetime', 30000000 ); setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); setcookie('comment_author_url_' . COOKIEHASH, esc_url($comment->comment_author_url), time() + $comment_cookie_lifetime, COOKIEPATH, COOKIE_DOMAIN); } /** * Sanitizes the cookies sent to the user already. * * Will only do anything if the cookies have already been created for the user. * Mostly used after cookies had been sent to use elsewhere. * * @since 2.0.4 */ function sanitize_comment_cookies() { if ( isset( $_COOKIE['comment_author_' . COOKIEHASH] ) ) { /** * Filter the comment author's name cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's name string is passed. * * @since 1.5.0 * * @param string $author_cookie The comment author name cookie. */ $comment_author = apply_filters( 'pre_comment_author_name', $_COOKIE['comment_author_' . COOKIEHASH] ); $comment_author = wp_unslash($comment_author); $comment_author = esc_attr($comment_author); $_COOKIE['comment_author_' . COOKIEHASH] = $comment_author; } if ( isset( $_COOKIE['comment_author_email_' . COOKIEHASH] ) ) { /** * Filter the comment author's email cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's email string is passed. * * @since 1.5.0 * * @param string $author_email_cookie The comment author email cookie. */ $comment_author_email = apply_filters( 'pre_comment_author_email', $_COOKIE['comment_author_email_' . COOKIEHASH] ); $comment_author_email = wp_unslash($comment_author_email); $comment_author_email = esc_attr($comment_author_email); $_COOKIE['comment_author_email_'.COOKIEHASH] = $comment_author_email; } if ( isset( $_COOKIE['comment_author_url_' . COOKIEHASH] ) ) { /** * Filter the comment author's URL cookie before it is set. * * When this filter hook is evaluated in wp_filter_comment(), * the comment author's URL string is passed. * * @since 1.5.0 * * @param string $author_url_cookie The comment author URL cookie. */ $comment_author_url = apply_filters( 'pre_comment_author_url', $_COOKIE['comment_author_url_' . COOKIEHASH] ); $comment_author_url = wp_unslash($comment_author_url); $_COOKIE['comment_author_url_'.COOKIEHASH] = $comment_author_url; } } /** * Validates whether this comment is allowed to be made. * * @since 2.0.0 * @uses $wpdb * @uses apply_filters() Calls 'pre_comment_approved' hook on the type of comment * @uses apply_filters() Calls 'comment_duplicate_trigger' hook on commentdata. * @uses do_action() Calls 'check_comment_flood' hook on $comment_author_IP, $comment_author_email, and $comment_date_gmt * * @param array $commentdata Contains information on the comment * @return mixed Signifies the approval status (0|1|'spam') */ function wp_allow_comment($commentdata) { global $wpdb; extract($commentdata, EXTR_SKIP); // Simple duplicate check // expected_slashed ($comment_post_ID, $comment_author, $comment_author_email, $comment_content) $dupe = $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = %s AND comment_approved != 'trash' AND ( comment_author = %s ", wp_unslash( $comment_post_ID ), wp_unslash( $comment_parent ), wp_unslash( $comment_author ) ); if ( $comment_author_email ) $dupe .= $wpdb->prepare( "OR comment_author_email = %s ", wp_unslash( $comment_author_email ) ); $dupe .= $wpdb->prepare( ") AND comment_content = %s LIMIT 1", wp_unslash( $comment_content ) ); if ( $wpdb->get_var($dupe) ) { /** * Fires immediately after a duplicate comment is detected. * * @since 3.0.0 * * @param array $commentdata Comment data. */ do_action( 'comment_duplicate_trigger', $commentdata ); if ( defined('DOING_AJAX') ) die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); wp_die( __('Duplicate comment detected; it looks as though you’ve already said that!') ); } /** * Fires immediately before a comment is marked approved. * * Allows checking for comment flooding. * * @since 2.3.0 * * @param string $comment_author_IP Comment author's IP address. * @param string $comment_author_email Comment author's email. * @param string $comment_date_gmt GMT date the comment was posted. */ do_action( 'check_comment_flood', $comment_author_IP, $comment_author_email, $comment_date_gmt ); if ( ! empty( $user_id ) ) { $user = get_userdata( $user_id ); $post_author = $wpdb->get_var($wpdb->prepare("SELECT post_author FROM $wpdb->posts WHERE ID = %d LIMIT 1", $comment_post_ID)); } if ( isset( $user ) && ( $user_id == $post_author || $user->has_cap( 'moderate_comments' ) ) ) { // The author and the admins get respect. $approved = 1; } else { // Everyone else's comments will be checked. if ( check_comment($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent, $comment_type) ) $approved = 1; else $approved = 0; if ( wp_blacklist_check($comment_author, $comment_author_email, $comment_author_url, $comment_content, $comment_author_IP, $comment_agent) ) $approved = 'spam'; } /** * Filter a comment's approval status before it is set. * * @since 2.1.0 * * @param bool|string $approved The approval status. Accepts 1, 0, or 'spam'. * @param array $commentdata Comment data. */ $approved = apply_filters( 'pre_comment_approved', $approved, $commentdata ); return $approved; } /** * Check whether comment flooding is occurring. * * Won't run, if current user can manage options, so to not block * administrators. * * @since 2.3.0 * @uses $wpdb * @uses apply_filters() Calls 'comment_flood_filter' filter with first * parameter false, last comment timestamp, new comment timestamp. * @uses do_action() Calls 'comment_flood_trigger' action with parameters with * last comment timestamp and new comment timestamp. * * @param string $ip Comment IP. * @param string $email Comment author email address. * @param string $date MySQL time string. */ function check_comment_flood_db( $ip, $email, $date ) { global $wpdb; if ( current_user_can( 'manage_options' ) ) return; // don't throttle admins $hour_ago = gmdate( 'Y-m-d H:i:s', time() - HOUR_IN_SECONDS ); if ( $lasttime = $wpdb->get_var( $wpdb->prepare( "SELECT `comment_date_gmt` FROM `$wpdb->comments` WHERE `comment_date_gmt` >= %s AND ( `comment_author_IP` = %s OR `comment_author_email` = %s ) ORDER BY `comment_date_gmt` DESC LIMIT 1", $hour_ago, $ip, $email ) ) ) { $time_lastcomment = mysql2date('U', $lasttime, false); $time_newcomment = mysql2date('U', $date, false); /** * Filter the comment flood status. * * @since 2.1.0 * * @param bool $bool Whether a comment flood is occurring. Default false. * @param int $time_lastcomment Timestamp of when the last comment was posted. * @param int $time_newcomment Timestamp of when the new comment was posted. */ $flood_die = apply_filters( 'comment_flood_filter', false, $time_lastcomment, $time_newcomment ); if ( $flood_die ) { /** * Fires before the comment flood message is triggered. * * @since 1.5.0 * * @param int $time_lastcomment Timestamp of when the last comment was posted. * @param int $time_newcomment Timestamp of when the new comment was posted. */ do_action( 'comment_flood_trigger', $time_lastcomment, $time_newcomment ); if ( defined('DOING_AJAX') ) die( __('You are posting comments too quickly. Slow down.') ); wp_die( __('You are posting comments too quickly. Slow down.'), '', array('response' => 403) ); } } } /** * Separates an array of comments into an array keyed by comment_type. * * @since 2.7.0 * * @param array $comments Array of comments * @return array Array of comments keyed by comment_type. */ function separate_comments(&$comments) { $comments_by_type = array('comment' => array(), 'trackback' => array(), 'pingback' => array(), 'pings' => array()); $count = count($comments); for ( $i = 0; $i < $count; $i++ ) { $type = $comments[$i]->comment_type; if ( empty($type) ) $type = 'comment'; $comments_by_type[$type][] = &$comments[$i]; if ( 'trackback' == $type || 'pingback' == $type ) $comments_by_type['pings'][] = &$comments[$i]; } return $comments_by_type; } /** * Calculate the total number of comment pages. * * @since 2.7.0 * @uses get_query_var() Used to fill in the default for $per_page parameter. * @uses get_option() Used to fill in defaults for parameters. * @uses Walker_Comment * * @param array $comments Optional array of comment objects. Defaults to $wp_query->comments * @param int $per_page Optional comments per page. * @param boolean $threaded Optional control over flat or threaded comments. * @return int Number of comment pages. */ function get_comment_pages_count( $comments = null, $per_page = null, $threaded = null ) { global $wp_query; if ( null === $comments && null === $per_page && null === $threaded && !empty($wp_query->max_num_comment_pages) ) return $wp_query->max_num_comment_pages; if ( !$comments || !is_array($comments) ) $comments = $wp_query->comments; if ( empty($comments) ) return 0; if ( ! get_option( 'page_comments' ) ) return 1; if ( !isset($per_page) ) $per_page = (int) get_query_var('comments_per_page'); if ( 0 === $per_page ) $per_page = (int) get_option('comments_per_page'); if ( 0 === $per_page ) return 1; if ( !isset($threaded) ) $threaded = get_option('thread_comments'); if ( $threaded ) { $walker = new Walker_Comment; $count = ceil( $walker->get_number_of_root_elements( $comments ) / $per_page ); } else { $count = ceil( count( $comments ) / $per_page ); } return $count; } /** * Calculate what page number a comment will appear on for comment paging. * * @since 2.7.0 * @uses get_comment() Gets the full comment of the $comment_ID parameter. * @uses get_option() Get various settings to control function and defaults. * @uses get_page_of_comment() Used to loop up to top level comment. * * @param int $comment_ID Comment ID. * @param array $args Optional args. * @return int|null Comment page number or null on error. */ function get_page_of_comment( $comment_ID, $args = array() ) { global $wpdb; if ( !$comment = get_comment( $comment_ID ) ) return; $defaults = array( 'type' => 'all', 'page' => '', 'per_page' => '', 'max_depth' => '' ); $args = wp_parse_args( $args, $defaults ); if ( '' === $args['per_page'] && get_option('page_comments') ) $args['per_page'] = get_query_var('comments_per_page'); if ( empty($args['per_page']) ) { $args['per_page'] = 0; $args['page'] = 0; } if ( $args['per_page'] < 1 ) return 1; if ( '' === $args['max_depth'] ) { if ( get_option('thread_comments') ) $args['max_depth'] = get_option('thread_comments_depth'); else $args['max_depth'] = -1; } // Find this comment's top level parent if threading is enabled if ( $args['max_depth'] > 1 && 0 != $comment->comment_parent ) return get_page_of_comment( $comment->comment_parent, $args ); $allowedtypes = array( 'comment' => '', 'pingback' => 'pingback', 'trackback' => 'trackback', ); $comtypewhere = ( 'all' != $args['type'] && isset($allowedtypes[$args['type']]) ) ? " AND comment_type = '" . $allowedtypes[$args['type']] . "'" : ''; // Count comments older than this one $oldercoms = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_parent = 0 AND comment_approved = '1' AND comment_date_gmt < '%s'" . $comtypewhere, $comment->comment_post_ID, $comment->comment_date_gmt ) ); // No older comments? Then it's page #1. if ( 0 == $oldercoms ) return 1; // Divide comments older than this one by comments per page to get this comment's page number return ceil( ( $oldercoms + 1 ) / $args['per_page'] ); } /** * Does comment contain blacklisted characters or words. * * @since 1.5.0 * @uses do_action() Calls 'wp_blacklist_check' hook for all parameters. * * @param string $author The author of the comment * @param string $email The email of the comment * @param string $url The url used in the comment * @param string $comment The comment content * @param string $user_ip The comment author IP address * @param string $user_agent The author's browser user agent * @return bool True if comment contains blacklisted content, false if comment does not */ function wp_blacklist_check($author, $email, $url, $comment, $user_ip, $user_agent) { /** * Fires before the comment is tested for blacklisted characters or words. * * @since 1.5.0 * * @param string $author Comment author. * @param string $email Comment author's email. * @param string $url Comment author's URL. * @param string $comment Comment content. * @param string $user_ip Comment author's IP address. * @param string $user_agent Comment author's browser user agent. */ do_action( 'wp_blacklist_check', $author, $email, $url, $comment, $user_ip, $user_agent ); $mod_keys = trim( get_option('blacklist_keys') ); if ( '' == $mod_keys ) return false; // If moderation keys are empty $words = explode("\n", $mod_keys ); foreach ( (array) $words as $word ) { $word = trim($word); // Skip empty lines if ( empty($word) ) { continue; } // Do some escaping magic so that '#' chars in the // spam words don't break things: $word = preg_quote($word, '#'); $pattern = "#$word#i"; if ( preg_match($pattern, $author) || preg_match($pattern, $email) || preg_match($pattern, $url) || preg_match($pattern, $comment) || preg_match($pattern, $user_ip) || preg_match($pattern, $user_agent) ) return true; } return false; } /** * Retrieve total comments for blog or single post. * * The properties of the returned object contain the 'moderated', 'approved', * and spam comments for either the entire blog or single post. Those properties * contain the amount of comments that match the status. The 'total_comments' * property contains the integer of total comments. * * The comment stats are cached and then retrieved, if they already exist in the * cache. * * @since 2.5.0 * * @param int $post_id Optional. Post ID. * @return object Comment stats. */ function wp_count_comments( $post_id = 0 ) { global $wpdb; $post_id = (int) $post_id; /** * Filter the comments count for a given post. * * @since 2.7.0 * * @param array $count An empty array. * @param int $post_id The post ID. */ $stats = apply_filters( 'wp_count_comments', array(), $post_id ); if ( !empty($stats) ) return $stats; $count = wp_cache_get("comments-{$post_id}", 'counts'); if ( false !== $count ) return $count; $where = ''; if ( $post_id > 0 ) $where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id ); $count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A ); $total = 0; $approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed'); foreach ( (array) $count as $row ) { // Don't count post-trashed toward totals if ( 'post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'] ) $total += $row['num_comments']; if ( isset( $approved[$row['comment_approved']] ) ) $stats[$approved[$row['comment_approved']]] = $row['num_comments']; } $stats['total_comments'] = $total; foreach ( $approved as $key ) { if ( empty($stats[$key]) ) $stats[$key] = 0; } $stats = (object) $stats; wp_cache_set("comments-{$post_id}", $stats, 'counts'); return $stats; } /** * Trashes or deletes a comment. * * The comment is moved to trash instead of permanently deleted unless trash is * disabled, item is already in the trash, or $force_delete is true. * * The post comment count will be updated if the comment was approved and has a * post ID available. * * @since 2.0.0 * @uses $wpdb * @uses do_action() Calls 'delete_comment' hook on comment ID * @uses do_action() Calls 'deleted_comment' hook on comment ID after deletion, on success * @uses do_action() Calls 'wp_set_comment_status' hook on comment ID with 'delete' set for the second parameter * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param int $comment_id Comment ID * @param bool $force_delete Whether to bypass trash and force deletion. Default is false. * @return bool True on success, false on failure. */ function wp_delete_comment($comment_id, $force_delete = false) { global $wpdb; if (!$comment = get_comment($comment_id)) return false; if ( !$force_delete && EMPTY_TRASH_DAYS && !in_array( wp_get_comment_status($comment_id), array( 'trash', 'spam' ) ) ) return wp_trash_comment($comment_id); /** * Fires immediately before a comment is deleted from the database. * * @since 1.2.0 * * @param int $comment_id The comment ID. */ do_action( 'delete_comment', $comment_id ); // Move children up a level. $children = $wpdb->get_col( $wpdb->prepare("SELECT comment_ID FROM $wpdb->comments WHERE comment_parent = %d", $comment_id) ); if ( !empty($children) ) { $wpdb->update($wpdb->comments, array('comment_parent' => $comment->comment_parent), array('comment_parent' => $comment_id)); clean_comment_cache($children); } // Delete metadata $meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->commentmeta WHERE comment_id = %d", $comment_id ) ); foreach ( $meta_ids as $mid ) delete_metadata_by_mid( 'comment', $mid ); if ( ! $wpdb->delete( $wpdb->comments, array( 'comment_ID' => $comment_id ) ) ) return false; /** * Fires immediately after a comment is deleted from the database. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'deleted_comment', $comment_id ); $post_id = $comment->comment_post_ID; if ( $post_id && $comment->comment_approved == 1 ) wp_update_comment_count($post_id); clean_comment_cache($comment_id); /** * Fires immediately before changing the comment's status to 'delete'. * * @since 1.5.0 * * @param int $comment_id The comment ID. * @param string $status The new 'delete' comment status. */ do_action( 'wp_set_comment_status', $comment_id, 'delete' ); wp_transition_comment_status('delete', $comment->comment_approved, $comment); return true; } /** * Moves a comment to the Trash * * If trash is disabled, comment is permanently deleted. * * @since 2.9.0 * @uses do_action() on 'trash_comment' before trashing * @uses do_action() on 'trashed_comment' after trashing * @uses wp_delete_comment() if trash is disabled * * @param int $comment_id Comment ID. * @return bool True on success, false on failure. */ function wp_trash_comment($comment_id) { if ( !EMPTY_TRASH_DAYS ) return wp_delete_comment($comment_id, true); if ( !$comment = get_comment($comment_id) ) return false; /** * Fires immediately before a comment is sent to the Trash. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'trash_comment', $comment_id ); if ( wp_set_comment_status($comment_id, 'trash') ) { add_comment_meta($comment_id, '_wp_trash_meta_status', $comment->comment_approved); add_comment_meta($comment_id, '_wp_trash_meta_time', time() ); /** * Fires immediately after a comment is sent to Trash. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'trashed_comment', $comment_id ); return true; } return false; } /** * Removes a comment from the Trash * * @since 2.9.0 * @uses do_action() on 'untrash_comment' before untrashing * @uses do_action() on 'untrashed_comment' after untrashing * * @param int $comment_id Comment ID. * @return bool True on success, false on failure. */ function wp_untrash_comment($comment_id) { if ( ! (int)$comment_id ) return false; /** * Fires immediately before a comment is restored from the Trash. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'untrash_comment', $comment_id ); $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true); if ( empty($status) ) $status = '0'; if ( wp_set_comment_status($comment_id, $status) ) { delete_comment_meta($comment_id, '_wp_trash_meta_time'); delete_comment_meta($comment_id, '_wp_trash_meta_status'); /** * Fires immediately after a comment is restored from the Trash. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'untrashed_comment', $comment_id ); return true; } return false; } /** * Marks a comment as Spam * * @since 2.9.0 * @uses do_action() on 'spam_comment' before spamming * @uses do_action() on 'spammed_comment' after spamming * * @param int $comment_id Comment ID. * @return bool True on success, false on failure. */ function wp_spam_comment($comment_id) { if ( !$comment = get_comment($comment_id) ) return false; /** * Fires immediately before a comment is marked as Spam. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'spam_comment', $comment_id ); if ( wp_set_comment_status($comment_id, 'spam') ) { add_comment_meta($comment_id, '_wp_trash_meta_status', $comment->comment_approved); /** * Fires immediately after a comment is marked as Spam. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'spammed_comment', $comment_id ); return true; } return false; } /** * Removes a comment from the Spam * * @since 2.9.0 * @uses do_action() on 'unspam_comment' before unspamming * @uses do_action() on 'unspammed_comment' after unspamming * * @param int $comment_id Comment ID. * @return bool True on success, false on failure. */ function wp_unspam_comment($comment_id) { if ( ! (int)$comment_id ) return false; /** * Fires immediately before a comment is unmarked as Spam. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'unspam_comment', $comment_id ); $status = (string) get_comment_meta($comment_id, '_wp_trash_meta_status', true); if ( empty($status) ) $status = '0'; if ( wp_set_comment_status($comment_id, $status) ) { delete_comment_meta($comment_id, '_wp_trash_meta_status'); /** * Fires immediately after a comment is unmarked as Spam. * * @since 2.9.0 * * @param int $comment_id The comment ID. */ do_action( 'unspammed_comment', $comment_id ); return true; } return false; } /** * The status of a comment by ID. * * @since 1.0.0 * * @param int $comment_id Comment ID * @return string|bool Status might be 'trash', 'approved', 'unapproved', 'spam'. False on failure. */ function wp_get_comment_status($comment_id) { $comment = get_comment($comment_id); if ( !$comment ) return false; $approved = $comment->comment_approved; if ( $approved == null ) return false; elseif ( $approved == '1' ) return 'approved'; elseif ( $approved == '0' ) return 'unapproved'; elseif ( $approved == 'spam' ) return 'spam'; elseif ( $approved == 'trash' ) return 'trash'; else return false; } /** * Call hooks for when a comment status transition occurs. * * Calls hooks for comment status transitions. If the new comment status is not the same * as the previous comment status, then two hooks will be ran, the first is * 'transition_comment_status' with new status, old status, and comment data. The * next action called is 'comment_OLDSTATUS_to_NEWSTATUS' the NEWSTATUS is the * $new_status parameter and the OLDSTATUS is $old_status parameter; it has the * comment data. * * The final action will run whether or not the comment statuses are the same. The * action is named 'comment_NEWSTATUS_COMMENTTYPE', NEWSTATUS is from the $new_status * parameter and COMMENTTYPE is comment_type comment data. * * @since 2.7.0 * * @param string $new_status New comment status. * @param string $old_status Previous comment status. * @param object $comment Comment data. */ function wp_transition_comment_status($new_status, $old_status, $comment) { /* * Translate raw statuses to human readable formats for the hooks. * This is not a complete list of comment status, it's only the ones * that need to be renamed */ $comment_statuses = array( 0 => 'unapproved', 'hold' => 'unapproved', // wp_set_comment_status() uses "hold" 1 => 'approved', 'approve' => 'approved', // wp_set_comment_status() uses "approve" ); if ( isset($comment_statuses[$new_status]) ) $new_status = $comment_statuses[$new_status]; if ( isset($comment_statuses[$old_status]) ) $old_status = $comment_statuses[$old_status]; // Call the hooks if ( $new_status != $old_status ) { /** * Fires when the comment status is in transition. * * @since 2.7.0 * * @param int|string $new_status The new comment status. * @param int|string $old_status The old comment status. * @param object $comment The comment data. */ do_action( 'transition_comment_status', $new_status, $old_status, $comment ); /** * Fires when the comment status is in transition from one specific status to another. * * The dynamic portions of the hook name, $old_status, and $new_status, * refer to the old and new comment statuses, respectively. * * @since 2.7.0 * * @param object $comment Comment object. */ do_action( "comment_{$old_status}_to_{$new_status}", $comment ); } /** * Fires when the status of a specific comment type is in transition. * * The dynamic portions of the hook name, $new_status, and $comment->comment_type, * refer to the new comment status, and the type of comment, respectively. * * Typical comment types include an empty string (standard comment), 'pingback', * or 'trackback'. * * @since 2.7.0 * * @param int $comment_ID The comment ID. * @param obj $comment Comment object. */ do_action( "comment_{$new_status}_{$comment->comment_type}", $comment->comment_ID, $comment ); } /** * Get current commenter's name, email, and URL. * * Expects cookies content to already be sanitized. User of this function might * wish to recheck the returned array for validity. * * @see sanitize_comment_cookies() Use to sanitize cookies * * @since 2.0.4 * * @return array Comment author, email, url respectively. */ function wp_get_current_commenter() { // Cookies should already be sanitized. $comment_author = ''; if ( isset($_COOKIE['comment_author_'.COOKIEHASH]) ) $comment_author = $_COOKIE['comment_author_'.COOKIEHASH]; $comment_author_email = ''; if ( isset($_COOKIE['comment_author_email_'.COOKIEHASH]) ) $comment_author_email = $_COOKIE['comment_author_email_'.COOKIEHASH]; $comment_author_url = ''; if ( isset($_COOKIE['comment_author_url_'.COOKIEHASH]) ) $comment_author_url = $_COOKIE['comment_author_url_'.COOKIEHASH]; /** * Filter the current commenter's name, email, and URL. * * @since 3.1.0 * * @param string $comment_author Comment author's name. * @param string $comment_author_email Comment author's email. * @param string $comment_author_url Comment author's URL. */ return apply_filters( 'wp_get_current_commenter', compact('comment_author', 'comment_author_email', 'comment_author_url') ); } /** * Inserts a comment to the database. * * The available comment data key names are 'comment_author_IP', 'comment_date', * 'comment_date_gmt', 'comment_parent', 'comment_approved', and 'user_id'. * * @since 2.0.0 * @uses $wpdb * * @param array $commentdata Contains information on the comment. * @return int The new comment's ID. */ function wp_insert_comment($commentdata) { global $wpdb; extract(wp_unslash($commentdata), EXTR_SKIP); if ( ! isset($comment_author_IP) ) $comment_author_IP = ''; if ( ! isset($comment_date) ) $comment_date = current_time('mysql'); if ( ! isset($comment_date_gmt) ) $comment_date_gmt = get_gmt_from_date($comment_date); if ( ! isset($comment_parent) ) $comment_parent = 0; if ( ! isset($comment_approved) ) $comment_approved = 1; if ( ! isset($comment_karma) ) $comment_karma = 0; if ( ! isset($user_id) ) $user_id = 0; if ( ! isset($comment_type) ) $comment_type = ''; $data = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_author_IP', 'comment_date', 'comment_date_gmt', 'comment_content', 'comment_karma', 'comment_approved', 'comment_agent', 'comment_type', 'comment_parent', 'user_id'); $wpdb->insert($wpdb->comments, $data); $id = (int) $wpdb->insert_id; if ( $comment_approved == 1 ) wp_update_comment_count($comment_post_ID); $comment = get_comment($id); /** * Fires immediately after a comment is inserted into the database. * * @since 2.8.0 * * @param int $id The comment ID. * @param obj $comment Comment object. */ do_action( 'wp_insert_comment', $id, $comment ); wp_cache_set( 'last_changed', microtime(), 'comment' ); return $id; } /** * Filters and sanitizes comment data. * * Sets the comment data 'filtered' field to true when finished. This can be * checked as to whether the comment should be filtered and to keep from * filtering the same comment more than once. * * @since 2.0.0 * * @param array $commentdata Contains information on the comment. * @return array Parsed comment information. */ function wp_filter_comment($commentdata) { if ( isset( $commentdata['user_ID'] ) ) { /** * Filter the comment author's user id before it is set. * * The first time this filter is evaluated, 'user_ID' is checked * (for back-compat), followed by the standard 'user_id' value. * * @since 1.5.0 * * @param int $user_ID The comment author's user ID. */ $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_ID'] ); } elseif ( isset( $commentdata['user_id'] ) ) { /** This filter is documented in wp-includes/comment.php */ $commentdata['user_id'] = apply_filters( 'pre_user_id', $commentdata['user_id'] ); } /** * Filter the comment author's browser user agent before it is set. * * @since 1.5.0 * * @param int $comment_agent The comment author's browser user agent. */ $commentdata['comment_agent'] = apply_filters( 'pre_comment_user_agent', ( isset( $commentdata['comment_agent'] ) ? $commentdata['comment_agent'] : '' ) ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author'] = apply_filters( 'pre_comment_author_name', $commentdata['comment_author'] ); /** * Filter the comment content before it is set. * * @since 1.5.0 * * @param int $comment_content The comment content. */ $commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] ); /** * Filter the comment author's IP before it is set. * * @since 1.5.0 * * @param int $comment_author_ip The comment author's IP. */ $commentdata['comment_author_IP'] = apply_filters( 'pre_comment_user_ip', $commentdata['comment_author_IP'] ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author_url'] = apply_filters( 'pre_comment_author_url', $commentdata['comment_author_url'] ); /** This filter is documented in wp-includes/comment.php */ $commentdata['comment_author_email'] = apply_filters( 'pre_comment_author_email', $commentdata['comment_author_email'] ); $commentdata['filtered'] = true; return $commentdata; } /** * Whether a comment should be blocked because of comment flood. * * @since 2.1.0 * * @param bool $block Whether plugin has already blocked comment. * @param int $time_lastcomment Timestamp for last comment. * @param int $time_newcomment Timestamp for new comment. * @return bool Whether comment should be blocked. */ function wp_throttle_comment_flood($block, $time_lastcomment, $time_newcomment) { if ( $block ) // a plugin has already blocked... we'll let that decision stand return $block; if ( ($time_newcomment - $time_lastcomment) < 15 ) return true; return false; } /** * Adds a new comment to the database. * * Filters new comment to ensure that the fields are sanitized and valid before * inserting comment into database. Calls 'comment_post' action with comment ID * and whether comment is approved by WordPress. Also has 'preprocess_comment' * filter for processing the comment data before the function handles it. * * We use REMOTE_ADDR here directly. If you are behind a proxy, you should ensure * that it is properly set, such as in wp-config.php, for your environment. * See {@link http://core.trac.wordpress.org/ticket/9235} * * @since 1.5.0 * @param array $commentdata Contains information on the comment. * @return int The ID of the comment after adding. */ function wp_new_comment( $commentdata ) { /** * Filter a comment's data before it is sanitized and inserted into the database. * * @since 1.5.0 * * @param array $commentdata Comment data. */ $commentdata = apply_filters( 'preprocess_comment', $commentdata ); $commentdata['comment_post_ID'] = (int) $commentdata['comment_post_ID']; if ( isset($commentdata['user_ID']) ) $commentdata['user_id'] = $commentdata['user_ID'] = (int) $commentdata['user_ID']; elseif ( isset($commentdata['user_id']) ) $commentdata['user_id'] = (int) $commentdata['user_id']; $commentdata['comment_parent'] = isset($commentdata['comment_parent']) ? absint($commentdata['comment_parent']) : 0; $parent_status = ( 0 < $commentdata['comment_parent'] ) ? wp_get_comment_status($commentdata['comment_parent']) : ''; $commentdata['comment_parent'] = ( 'approved' == $parent_status || 'unapproved' == $parent_status ) ? $commentdata['comment_parent'] : 0; $commentdata['comment_author_IP'] = preg_replace( '/[^0-9a-fA-F:., ]/', '',$_SERVER['REMOTE_ADDR'] ); $commentdata['comment_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 ) : ''; $commentdata['comment_date'] = current_time('mysql'); $commentdata['comment_date_gmt'] = current_time('mysql', 1); $commentdata = wp_filter_comment($commentdata); $commentdata['comment_approved'] = wp_allow_comment($commentdata); $comment_ID = wp_insert_comment($commentdata); /** * Fires immediately after a comment is inserted into the database. * * @since 1.2.0 * * @param int $comment_ID The comment ID. * @param int $comment_approved 1 (true) if the comment is approved, 0 (false) if not. */ do_action( 'comment_post', $comment_ID, $commentdata['comment_approved'] ); if ( 'spam' !== $commentdata['comment_approved'] ) { // If it's spam save it silently for later crunching if ( '0' == $commentdata['comment_approved'] ) { wp_notify_moderator( $comment_ID ); } // wp_notify_postauthor() checks if notifying the author of their own comment. // By default, it won't, but filters can override this. if ( get_option( 'comments_notify' ) && $commentdata['comment_approved'] ) { wp_notify_postauthor( $comment_ID ); } } return $comment_ID; } /** * Sets the status of a comment. * * The 'wp_set_comment_status' action is called after the comment is handled. * If the comment status is not in the list, then false is returned. * * @since 1.0.0 * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param int $comment_id Comment ID. * @param string $comment_status New comment status, either 'hold', 'approve', 'spam', or 'trash'. * @param bool $wp_error Whether to return a WP_Error object if there is a failure. Default is false. * @return bool|WP_Error True on success, false or WP_Error on failure. */ function wp_set_comment_status($comment_id, $comment_status, $wp_error = false) { global $wpdb; $status = '0'; switch ( $comment_status ) { case 'hold': case '0': $status = '0'; break; case 'approve': case '1': $status = '1'; if ( get_option('comments_notify') ) { wp_notify_postauthor( $comment_id ); } break; case 'spam': $status = 'spam'; break; case 'trash': $status = 'trash'; break; default: return false; } $comment_old = clone get_comment($comment_id); if ( !$wpdb->update( $wpdb->comments, array('comment_approved' => $status), array('comment_ID' => $comment_id) ) ) { if ( $wp_error ) return new WP_Error('db_update_error', __('Could not update comment status'), $wpdb->last_error); else return false; } clean_comment_cache($comment_id); $comment = get_comment($comment_id); /** * Fires after a comment status has been updated in the database. * * The hook also fires immediately before comment status transition hooks are fired. * * @since 1.5.0 * * @param int $comment_id The comment ID. * @param string|bool $comment_status The comment status. Possible values include 'hold', * 'approve', 'spam', 'trash', or false. */ do_action( 'wp_set_comment_status', $comment_id, $comment_status ); wp_transition_comment_status($comment_status, $comment_old->comment_approved, $comment); wp_update_comment_count($comment->comment_post_ID); return true; } /** * Updates an existing comment in the database. * * Filters the comment and makes sure certain fields are valid before updating. * * @since 2.0.0 * @uses $wpdb * @uses wp_transition_comment_status() Passes new and old comment status along with $comment object * * @param array $commentarr Contains information on the comment. * @return int Comment was updated if value is 1, or was not updated if value is 0. */ function wp_update_comment($commentarr) { global $wpdb; // First, get all of the original fields $comment = get_comment($commentarr['comment_ID'], ARRAY_A); if ( empty( $comment ) ) return 0; // Escape data pulled from DB. $comment = wp_slash($comment); $old_status = $comment['comment_approved']; // Merge old and new fields with new fields overwriting old ones. $commentarr = array_merge($comment, $commentarr); $commentarr = wp_filter_comment( $commentarr ); // Now extract the merged array. extract(wp_unslash($commentarr), EXTR_SKIP); /** * Filter the comment content before it is updated in the database. * * @since 1.5.0 * * @param string $comment_content The comment data. */ $comment_content = apply_filters( 'comment_save_pre', $comment_content ); $comment_date_gmt = get_gmt_from_date($comment_date); if ( !isset($comment_approved) ) $comment_approved = 1; else if ( 'hold' == $comment_approved ) $comment_approved = 0; else if ( 'approve' == $comment_approved ) $comment_approved = 1; $data = compact( 'comment_content', 'comment_author', 'comment_author_email', 'comment_approved', 'comment_karma', 'comment_author_url', 'comment_date', 'comment_date_gmt', 'comment_parent' ); $rval = $wpdb->update( $wpdb->comments, $data, compact( 'comment_ID' ) ); clean_comment_cache($comment_ID); wp_update_comment_count($comment_post_ID); /** * Fires immediately after a comment is updated in the database. * * The hook also fires immediately before comment status transition hooks are fired. * * @since 1.2.0 * * @param int $comment_ID The comment ID. */ do_action( 'edit_comment', $comment_ID ); $comment = get_comment($comment_ID); wp_transition_comment_status($comment->comment_approved, $old_status, $comment); return $rval; } /** * Whether to defer comment counting. * * When setting $defer to true, all post comment counts will not be updated * until $defer is set to false. When $defer is set to false, then all * previously deferred updated post comment counts will then be automatically * updated without having to call wp_update_comment_count() after. * * @since 2.5.0 * @staticvar bool $_defer * * @param bool $defer * @return unknown */ function wp_defer_comment_counting($defer=null) { static $_defer = false; if ( is_bool($defer) ) { $_defer = $defer; // flush any deferred counts if ( !$defer ) wp_update_comment_count( null, true ); } return $_defer; } /** * Updates the comment count for post(s). * * When $do_deferred is false (is by default) and the comments have been set to * be deferred, the post_id will be added to a queue, which will be updated at a * later date and only updated once per post ID. * * If the comments have not be set up to be deferred, then the post will be * updated. When $do_deferred is set to true, then all previous deferred post * IDs will be updated along with the current $post_id. * * @since 2.1.0 * @see wp_update_comment_count_now() For what could cause a false return value * * @param int $post_id Post ID * @param bool $do_deferred Whether to process previously deferred post comment counts * @return bool True on success, false on failure */ function wp_update_comment_count($post_id, $do_deferred=false) { static $_deferred = array(); if ( $do_deferred ) { $_deferred = array_unique($_deferred); foreach ( $_deferred as $i => $_post_id ) { wp_update_comment_count_now($_post_id); unset( $_deferred[$i] ); /** @todo Move this outside of the foreach and reset $_deferred to an array instead */ } } if ( wp_defer_comment_counting() ) { $_deferred[] = $post_id; return true; } elseif ( $post_id ) { return wp_update_comment_count_now($post_id); } } /** * Updates the comment count for the post. * * @since 2.5.0 * @uses $wpdb * @uses do_action() Calls 'wp_update_comment_count' hook on $post_id, $new, and $old * @uses do_action() Calls 'edit_posts' hook on $post_id and $post * * @param int $post_id Post ID * @return bool True on success, false on '0' $post_id or if post with ID does not exist. */ function wp_update_comment_count_now($post_id) { global $wpdb; $post_id = (int) $post_id; if ( !$post_id ) return false; if ( !$post = get_post($post_id) ) return false; $old = (int) $post->comment_count; $new = (int) $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved = '1'", $post_id) ); $wpdb->update( $wpdb->posts, array('comment_count' => $new), array('ID' => $post_id) ); clean_post_cache( $post ); /** * Fires immediately after a post's comment count is updated in the database. * * @since 2.3.0 * * @param int $post_id Post ID. * @param int $new The new comment count. * @param int $old The old comment count. */ do_action( 'wp_update_comment_count', $post_id, $new, $old ); /** This action is documented in wp-includes/post.php */ do_action( 'edit_post', $post_id, $post ); return true; } // // Ping and trackback functions. // /** * Finds a pingback server URI based on the given URL. * * Checks the HTML for the rel="pingback" link and x-pingback headers. It does * a check for the x-pingback headers first and returns that, if available. The * check for the rel="pingback" has more overhead than just the header. * * @since 1.5.0 * * @param string $url URL to ping. * @param int $deprecated Not Used. * @return bool|string False on failure, string containing URI on success. */ function discover_pingback_server_uri( $url, $deprecated = '' ) { if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '2.7' ); $pingback_str_dquote = 'rel="pingback"'; $pingback_str_squote = 'rel=\'pingback\''; /** @todo Should use Filter Extension or custom preg_match instead. */ $parsed_url = parse_url($url); if ( ! isset( $parsed_url['host'] ) ) // Not an URL. This should never happen. return false; //Do not search for a pingback server on our own uploads $uploads_dir = wp_upload_dir(); if ( 0 === strpos($url, $uploads_dir['baseurl']) ) return false; $response = wp_safe_remote_head( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) ); if ( is_wp_error( $response ) ) return false; if ( wp_remote_retrieve_header( $response, 'x-pingback' ) ) return wp_remote_retrieve_header( $response, 'x-pingback' ); // Not an (x)html, sgml, or xml page, no use going further. if ( preg_match('#(image|audio|video|model)/#is', wp_remote_retrieve_header( $response, 'content-type' )) ) return false; // Now do a GET since we're going to look in the html headers (and we're sure it's not a binary file) $response = wp_safe_remote_get( $url, array( 'timeout' => 2, 'httpversion' => '1.0' ) ); if ( is_wp_error( $response ) ) return false; $contents = wp_remote_retrieve_body( $response ); $pingback_link_offset_dquote = strpos($contents, $pingback_str_dquote); $pingback_link_offset_squote = strpos($contents, $pingback_str_squote); if ( $pingback_link_offset_dquote || $pingback_link_offset_squote ) { $quote = ($pingback_link_offset_dquote) ? '"' : '\''; $pingback_link_offset = ($quote=='"') ? $pingback_link_offset_dquote : $pingback_link_offset_squote; $pingback_href_pos = @strpos($contents, 'href=', $pingback_link_offset); $pingback_href_start = $pingback_href_pos+6; $pingback_href_end = @strpos($contents, $quote, $pingback_href_start); $pingback_server_url_len = $pingback_href_end - $pingback_href_start; $pingback_server_url = substr($contents, $pingback_href_start, $pingback_server_url_len); // We may find rel="pingback" but an incomplete pingback URL if ( $pingback_server_url_len > 0 ) { // We got it! return $pingback_server_url; } } return false; } /** * Perform all pingbacks, enclosures, trackbacks, and send to pingback services. * * @since 2.1.0 * @uses $wpdb */ function do_all_pings() { global $wpdb; // Do pingbacks while ($ping = $wpdb->get_row("SELECT ID, post_content, meta_id FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_pingme' LIMIT 1")) { delete_metadata_by_mid( 'post', $ping->meta_id ); pingback( $ping->post_content, $ping->ID ); } // Do Enclosures while ($enclosure = $wpdb->get_row("SELECT ID, post_content, meta_id FROM {$wpdb->posts}, {$wpdb->postmeta} WHERE {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id AND {$wpdb->postmeta}.meta_key = '_encloseme' LIMIT 1")) { delete_metadata_by_mid( 'post', $enclosure->meta_id ); do_enclose( $enclosure->post_content, $enclosure->ID ); } // Do Trackbacks $trackbacks = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE to_ping <> '' AND post_status = 'publish'"); if ( is_array($trackbacks) ) foreach ( $trackbacks as $trackback ) do_trackbacks($trackback); //Do Update Services/Generic Pings generic_ping(); } /** * Perform trackbacks. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID to do trackbacks on. */ function do_trackbacks($post_id) { global $wpdb; $post = get_post( $post_id ); $to_ping = get_to_ping($post_id); $pinged = get_pung($post_id); if ( empty($to_ping) ) { $wpdb->update($wpdb->posts, array('to_ping' => ''), array('ID' => $post_id) ); return; } if ( empty($post->post_excerpt) ) { /** This filter is documented in wp-admin/post-template.php */ $excerpt = apply_filters( 'the_content', $post->post_content, $post->ID ); } else { /** This filter is documented in wp-admin/post-template.php */ $excerpt = apply_filters( 'the_excerpt', $post->post_excerpt ); } $excerpt = str_replace(']]>', ']]>', $excerpt); $excerpt = wp_html_excerpt($excerpt, 252, '…'); /** This filter is documented in wp-includes/post-template.php */ $post_title = apply_filters( 'the_title', $post->post_title, $post->ID ); $post_title = strip_tags($post_title); if ( $to_ping ) { foreach ( (array) $to_ping as $tb_ping ) { $tb_ping = trim($tb_ping); if ( !in_array($tb_ping, $pinged) ) { trackback($tb_ping, $post_title, $excerpt, $post_id); $pinged[] = $tb_ping; } else { $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET to_ping = TRIM(REPLACE(to_ping, %s, '')) WHERE ID = %d", $tb_ping, $post_id) ); } } } } /** * Sends pings to all of the ping site services. * * @since 1.2.0 * * @param int $post_id Post ID. Not actually used. * @return int Same as Post ID from parameter */ function generic_ping($post_id = 0) { $services = get_option('ping_sites'); $services = explode("\n", $services); foreach ( (array) $services as $service ) { $service = trim($service); if ( '' != $service ) weblog_ping($service); } return $post_id; } /** * Pings back the links found in a post. * * @since 0.71 * @uses $wp_version * @uses IXR_Client * * @param string $content Post content to check for links. * @param int $post_ID Post ID. */ function pingback($content, $post_ID) { global $wp_version; include_once(ABSPATH . WPINC . '/class-IXR.php'); include_once(ABSPATH . WPINC . '/class-wp-http-ixr-client.php'); // original code by Mort (http://mort.mine.nu:8080) $post_links = array(); $pung = get_pung($post_ID); // Step 1 // Parsing the post, external links (if any) are stored in the $post_links array $post_links_temp = wp_extract_urls( $content ); // Step 2. // Walking thru the links array // first we get rid of links pointing to sites, not to specific files // Example: // http://dummy-weblog.org // http://dummy-weblog.org/ // http://dummy-weblog.org/post.php // We don't wanna ping first and second types, even if they have a valid <link/> foreach ( (array) $post_links_temp as $link_test ) : if ( !in_array($link_test, $pung) && (url_to_postid($link_test) != $post_ID) // If we haven't pung it already and it isn't a link to itself && !is_local_attachment($link_test) ) : // Also, let's never ping local attachments. if ( $test = @parse_url($link_test) ) { if ( isset($test['query']) ) $post_links[] = $link_test; elseif ( isset( $test['path'] ) && ( $test['path'] != '/' ) && ( $test['path'] != '' ) ) $post_links[] = $link_test; } endif; endforeach; $post_links = array_unique( $post_links ); /** * Fires just before pinging back links found in a post. * * @since 2.0.0 * * @param array &$post_links An array of post links to be checked, passed by reference. * @param array &$pung Whether a link has already been pinged, passed by reference. * @param int $post_ID The post ID. */ do_action_ref_array( 'pre_ping', array( &$post_links, &$pung, $post_ID ) ); foreach ( (array) $post_links as $pagelinkedto ) { $pingback_server_url = discover_pingback_server_uri( $pagelinkedto ); if ( $pingback_server_url ) { @ set_time_limit( 60 ); // Now, the RPC call $pagelinkedfrom = get_permalink($post_ID); // using a timeout of 3 seconds should be enough to cover slow servers $client = new WP_HTTP_IXR_Client($pingback_server_url); $client->timeout = 3; /** * Filter the user agent sent when pinging-back a URL. * * @since 2.9.0 * * @param string $concat_useragent The user agent concatenated with ' -- WordPress/' * and the WordPress version. * @param string $useragent The useragent. * @param string $pingback_server_url The server URL being linked to. * @param string $pagelinkedto URL of page linked to. * @param string $pagelinkedfrom URL of page linked from. */ $client->useragent = apply_filters( 'pingback_useragent', $client->useragent . ' -- WordPress/' . $wp_version, $client->useragent, $pingback_server_url, $pagelinkedto, $pagelinkedfrom ); // when set to true, this outputs debug messages by itself $client->debug = false; if ( $client->query('pingback.ping', $pagelinkedfrom, $pagelinkedto) || ( isset($client->error->code) && 48 == $client->error->code ) ) // Already registered add_ping( $post_ID, $pagelinkedto ); } } } /** * Check whether blog is public before returning sites. * * @since 2.1.0 * * @param mixed $sites Will return if blog is public, will not return if not public. * @return mixed Empty string if blog is not public, returns $sites, if site is public. */ function privacy_ping_filter($sites) { if ( '0' != get_option('blog_public') ) return $sites; else return ''; } /** * Send a Trackback. * * Updates database when sending trackback to prevent duplicates. * * @since 0.71 * @uses $wpdb * * @param string $trackback_url URL to send trackbacks. * @param string $title Title of post. * @param string $excerpt Excerpt of post. * @param int $ID Post ID. * @return mixed Database query from update. */ function trackback($trackback_url, $title, $excerpt, $ID) { global $wpdb; if ( empty($trackback_url) ) return; $options = array(); $options['timeout'] = 4; $options['body'] = array( 'title' => $title, 'url' => get_permalink($ID), 'blog_name' => get_option('blogname'), 'excerpt' => $excerpt ); $response�����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������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) $this->args[$handle[0]] = $handle[1]; } } } /** * Dequeue an item or items. * * Decodes handles and arguments, then dequeues handles * and removes arguments from the class property $args. * * @access public * @since 2.1.0 * * @param mixed $handles Item handle and argument (string) or item handles and arguments (array of strings). */ public function dequeue( $handles ) { foreach ( (array) $handles as $handle ) { $handle = explode('?', $handle); $key = array_search($handle[0], $this->queue); if ( false !== $key ) { unset($this->queue[$key]); unset($this->args[$handle[0]]); } } } /** * Query list for an item. * * @access public * @since 2.1.0 * * @param string $handle Name of the item. Should be unique. * @param string $list Property name of list array. * @return bool Found, or object Item data. */ public function query( $handle, $list = 'registered' ) { switch ( $list ) { case 'registered' : case 'scripts': // back compat if ( isset( $this->registered[ $handle ] ) ) return $this->registered[ $handle ]; return false; case 'enqueued' : case 'queue' : return in_array( $handle, $this->queue ); case 'to_do' : case 'to_print': // back compat return in_array( $handle, $this->to_do ); case 'done' : case 'printed': // back compat return in_array( $handle, $this->done ); } return false; } /** * Set item group, unless already in a lower group. * * @access public * @since 2.8.0 * * @param string $handle Name of the item. Should be unique. * @param bool $recursion Internal flag that calling function was called recursively. * @param mixed $group Group level. * @return bool Not already in the group or a lower group */ public function set_group( $handle, $recursion, $group ) { $group = (int) $group; if ( $recursion ) $group = min($this->group, $group); else $this->group = $group; if ( isset($this->groups[$handle]) && $this->groups[$handle] <= $group ) return false; $this->groups[$handle] = $group; return true; } } // WP_Dependencies /** * Class _WP_Dependency * * Helper class to register a handle and associated data. * * @access private * @since 2.6.0 */ class _WP_Dependency { /** * The handle name. * * @access public * @since 2.6.0 * @var null */ var $handle; /** * The handle source. * * @access public * @since 2.6.0 * @var null */ var $src; /** * An array of handle dependencies. * * @access public * @since 2.6.0 * @var array */ var $deps = array(); /** * The handle version. * * Used for cache-busting. * * @access public * @since 2.6.0 * @var bool|string */ var $ver = false; /** * Additional arguments for the handle. * * @access public * @since 2.6.0 * @var null */ var $args = null; // Custom property, such as $in_footer or $media. /** * Extra data to supply to the handle. * * @access public * @since 2.6.0 * @var array */ var $extra = array(); /** * Setup dependencies. * * @since 2.6.0 */ function __construct() { @list( $this->handle, $this->src, $this->deps, $this->ver, $this->args ) = func_get_args(); if ( ! is_array($this->deps) ) $this->deps = array(); } /** * Add handle data. * * @access public * @since 2.6.0 * * @param string $name The data key to add. * @param mixed $data The data value to add. * @return bool False if not scalar, true otherwise. */ function add_data( $name, $data ) { if ( !is_scalar($name) ) return false; $this->extra[$name] = $data; return true; } } // _WP_Dependencies <br /> <b>Fatal error</b>: Class 'WP_Dependencies' not found in <b>/mounted-storage/home88b/sub005/sc48437-OADV/chuppacadabra.com/wp-includes/class.wp-scripts.php</b> on line <b>19</b><br />