4417 lines
137 KiB
PHP
4417 lines
137 KiB
PHP
<?php
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/**
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* Main WordPress API
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*
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* @package WordPress
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*/
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/**
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* Converts MySQL DATETIME field to user specified date format.
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*
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* If $dateformatstring has 'G' value, then gmmktime() function will be used to
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* make the time. If $dateformatstring is set to 'U', then mktime() function
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* will be used to make the time.
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*
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* The $translate will only be used, if it is set to true and it is by default
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* and if the $wp_locale object has the month and weekday set.
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*
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* @since 0.71
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*
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* @param string $dateformatstring Either 'G', 'U', or php date format.
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* @param string $mysqlstring Time from mysql DATETIME field.
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* @param bool $translate Optional. Default is true. Will switch format to locale.
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* @return string Date formated by $dateformatstring or locale (if available).
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*/
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function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) {
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$m = $mysqlstring;
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if ( empty( $m ) )
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return false;
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if ( 'G' == $dateformatstring )
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return strtotime( $m . ' +0000' );
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$i = strtotime( $m );
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if ( 'U' == $dateformatstring )
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return $i;
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if ( $translate )
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return date_i18n( $dateformatstring, $i );
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else
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return date( $dateformatstring, $i );
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}
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/**
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* Retrieve the current time based on specified type.
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*
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* The 'mysql' type will return the time in the format for MySQL DATETIME field.
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* The 'timestamp' type will return the current timestamp.
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*
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* If $gmt is set to either '1' or 'true', then both types will use GMT time.
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* if $gmt is false, the output is adjusted with the GMT offset in the WordPress option.
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*
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* @since 1.0.0
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*
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* @param string $type Either 'mysql' or 'timestamp'.
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* @param int|bool $gmt Optional. Whether to use GMT timezone. Default is false.
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* @return int|string String if $type is 'gmt', int if $type is 'timestamp'.
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*/
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function current_time( $type, $gmt = 0 ) {
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switch ( $type ) {
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case 'mysql':
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return ( $gmt ) ? gmdate( 'Y-m-d H:i:s' ) : gmdate( 'Y-m-d H:i:s', ( time() + ( get_option( 'gmt_offset' ) * 3600 ) ) );
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break;
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case 'timestamp':
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return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * 3600 );
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break;
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}
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}
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/**
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* Retrieve the date in localized format, based on timestamp.
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*
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* If the locale specifies the locale month and weekday, then the locale will
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* take over the format for the date. If it isn't, then the date format string
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* will be used instead.
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*
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* @since 0.71
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*
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* @param string $dateformatstring Format to display the date.
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* @param int $unixtimestamp Optional. Unix timestamp.
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* @param bool $gmt Optional, default is false. Whether to convert to GMT for time.
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* @return string The date, translated if locale specifies it.
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*/
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function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) {
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global $wp_locale;
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$i = $unixtimestamp;
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// Sanity check for PHP 5.1.0-
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if ( false === $i || intval($i) < 0 ) {
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if ( ! $gmt )
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$i = current_time( 'timestamp' );
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else
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$i = time();
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// we should not let date() interfere with our
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// specially computed timestamp
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$gmt = true;
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}
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// store original value for language with untypical grammars
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// see http://core.trac.wordpress.org/ticket/9396
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$req_format = $dateformatstring;
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$datefunc = $gmt? 'gmdate' : 'date';
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if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) {
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$datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) );
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$datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth );
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$dateweekday = $wp_locale->get_weekday( $datefunc( 'w', $i ) );
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$dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday );
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$datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) );
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$datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i ) );
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$dateformatstring = ' '.$dateformatstring;
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$dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring );
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$dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring );
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$dateformatstring = preg_replace( "/([^\\\])l/", "\\1" . backslashit( $dateweekday ), $dateformatstring );
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$dateformatstring = preg_replace( "/([^\\\])M/", "\\1" . backslashit( $datemonth_abbrev ), $dateformatstring );
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$dateformatstring = preg_replace( "/([^\\\])a/", "\\1" . backslashit( $datemeridiem ), $dateformatstring );
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$dateformatstring = preg_replace( "/([^\\\])A/", "\\1" . backslashit( $datemeridiem_capital ), $dateformatstring );
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$dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );
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}
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$j = @$datefunc( $dateformatstring, $i );
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// allow plugins to redo this entirely for languages with untypical grammars
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$j = apply_filters('date_i18n', $j, $req_format, $i, $gmt);
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return $j;
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}
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/**
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* Convert integer number to format based on the locale.
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*
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* @since 2.3.0
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*
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* @param int $number The number to convert based on locale.
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* @param int $decimals Precision of the number of decimal places.
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* @return string Converted number in string format.
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*/
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function number_format_i18n( $number, $decimals = 0 ) {
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global $wp_locale;
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$formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
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return apply_filters( 'number_format_i18n', $formatted );
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}
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/**
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* Convert number of bytes largest unit bytes will fit into.
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*
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* It is easier to read 1kB than 1024 bytes and 1MB than 1048576 bytes. Converts
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* number of bytes to human readable number by taking the number of that unit
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* that the bytes will go into it. Supports TB value.
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*
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* Please note that integers in PHP are limited to 32 bits, unless they are on
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* 64 bit architecture, then they have 64 bit size. If you need to place the
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* larger size then what PHP integer type will hold, then use a string. It will
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* be converted to a double, which should always have 64 bit length.
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*
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* Technically the correct unit names for powers of 1024 are KiB, MiB etc.
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* @link http://en.wikipedia.org/wiki/Byte
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*
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* @since 2.3.0
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*
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* @param int|string $bytes Number of bytes. Note max integer size for integers.
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* @param int $decimals Precision of number of decimal places. Deprecated.
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* @return bool|string False on failure. Number string on success.
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*/
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function size_format( $bytes, $decimals = 0 ) {
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$quant = array(
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// ========================= Origin ====
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'TB' => 1099511627776, // pow( 1024, 4)
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'GB' => 1073741824, // pow( 1024, 3)
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'MB' => 1048576, // pow( 1024, 2)
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'kB' => 1024, // pow( 1024, 1)
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'B ' => 1, // pow( 1024, 0)
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);
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foreach ( $quant as $unit => $mag )
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if ( doubleval($bytes) >= $mag )
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return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit;
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return false;
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}
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/**
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* Get the week start and end from the datetime or date string from mysql.
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*
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* @since 0.71
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*
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* @param string $mysqlstring Date or datetime field type from mysql.
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* @param int $start_of_week Optional. Start of the week as an integer.
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* @return array Keys are 'start' and 'end'.
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*/
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function get_weekstartend( $mysqlstring, $start_of_week = '' ) {
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$my = substr( $mysqlstring, 0, 4 ); // Mysql string Year
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$mm = substr( $mysqlstring, 8, 2 ); // Mysql string Month
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$md = substr( $mysqlstring, 5, 2 ); // Mysql string day
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$day = mktime( 0, 0, 0, $md, $mm, $my ); // The timestamp for mysqlstring day.
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$weekday = date( 'w', $day ); // The day of the week from the timestamp
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if ( !is_numeric($start_of_week) )
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$start_of_week = get_option( 'start_of_week' );
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if ( $weekday < $start_of_week )
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$weekday += 7;
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$start = $day - 86400 * ( $weekday - $start_of_week ); // The most recent week start day on or before $day
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$end = $start + 604799; // $start + 7 days - 1 second
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return compact( 'start', 'end' );
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}
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/**
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* Unserialize value only if it was serialized.
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*
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* @since 2.0.0
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*
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* @param string $original Maybe unserialized original, if is needed.
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* @return mixed Unserialized data can be any type.
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*/
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function maybe_unserialize( $original ) {
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if ( is_serialized( $original ) ) // don't attempt to unserialize data that wasn't serialized going in
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return @unserialize( $original );
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return $original;
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}
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/**
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* Check value to find if it was serialized.
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*
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* If $data is not an string, then returned value will always be false.
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* Serialized data is always a string.
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*
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* @since 2.0.5
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*
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* @param mixed $data Value to check to see if was serialized.
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* @return bool False if not serialized and true if it was.
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*/
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function is_serialized( $data ) {
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// if it isn't a string, it isn't serialized
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if ( !is_string( $data ) )
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return false;
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$data = trim( $data );
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if ( 'N;' == $data )
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return true;
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if ( function_exists('strpbrk') ) {
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if ( strlen($data) > 1 && strpbrk($data,'adObis') == $data && $data[1] == ':' ) {
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$badions = array();
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$badions[1] = $data[0];
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} else {
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return false;
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}
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} elseif ( !preg_match( '/^([adObis]):/', $data, $badions ) ) {
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return false;
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}
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switch ( $badions[1] ) {
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case 'a' :
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case 'O' :
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case 's' :
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if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) )
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return true;
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break;
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case 'b' :
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case 'i' :
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case 'd' :
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if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) )
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return true;
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break;
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}
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return false;
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}
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/**
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* Check whether serialized data is of string type.
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*
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* @since 2.0.5
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*
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* @param mixed $data Serialized data
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* @return bool False if not a serialized string, true if it is.
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*/
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function is_serialized_string( $data ) {
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// if it isn't a string, it isn't a serialized string
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if ( !is_string( $data ) )
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return false;
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$data = trim( $data );
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if ( preg_match( '/^s:[0-9]+:.*;$/s', $data ) ) // this should fetch all serialized strings
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return true;
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return false;
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}
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/**
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* Retrieve option value based on name of option.
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*
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* If the option does not exist or does not have a value, then the return value
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* will be false. This is useful to check whether you need to install an option
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* and is commonly used during installation of plugin options and to test
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* whether upgrading is required.
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*
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* If the option was serialized then it will be unserialized when it is returned.
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*
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* @since 1.5.0
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* @package WordPress
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* @subpackage Option
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* @uses apply_filters() Calls 'pre_option_$option' before checking the option.
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* Any value other than false will "short-circuit" the retrieval of the option
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* and return the returned value. You should not try to override special options,
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* but you will not be prevented from doing so.
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* @uses apply_filters() Calls 'option_$option', after checking the option, with
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* the option value.
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*
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* @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
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* @return mixed Value set for the option.
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*/
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function get_option( $option, $default = false ) {
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global $wpdb;
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// Allow plugins to short-circuit options.
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$pre = apply_filters( 'pre_option_' . $option, false );
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if ( false !== $pre )
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return $pre;
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$option = trim($option);
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if ( empty($option) )
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return false;
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if ( defined( 'WP_SETUP_CONFIG' ) )
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return false;
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if ( ! defined( 'WP_INSTALLING' ) ) {
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// prevent non-existent options from triggering multiple queries
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$notoptions = wp_cache_get( 'notoptions', 'options' );
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if ( isset( $notoptions[$option] ) )
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return $default;
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$alloptions = wp_load_alloptions();
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if ( isset( $alloptions[$option] ) ) {
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$value = $alloptions[$option];
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} else {
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$value = wp_cache_get( $option, 'options' );
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if ( false === $value ) {
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$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
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// Has to be get_row instead of get_var because of funkiness with 0, false, null values
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if ( is_object( $row ) ) {
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$value = $row->option_value;
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wp_cache_add( $option, $value, 'options' );
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} else { // option does not exist, so we must cache its non-existence
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$notoptions[$option] = true;
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wp_cache_set( 'notoptions', $notoptions, 'options' );
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return $default;
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}
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}
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}
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} else {
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$suppress = $wpdb->suppress_errors();
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$row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
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$wpdb->suppress_errors( $suppress );
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if ( is_object( $row ) )
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$value = $row->option_value;
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else
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return $default;
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}
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// If home is not set use siteurl.
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if ( 'home' == $option && '' == $value )
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return get_option( 'siteurl' );
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if ( in_array( $option, array('siteurl', 'home', 'category_base', 'tag_base') ) )
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$value = untrailingslashit( $value );
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return apply_filters( 'option_' . $option, maybe_unserialize( $value ) );
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}
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/**
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* Protect WordPress special option from being modified.
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*
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* Will die if $option is in protected list. Protected options are 'alloptions'
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* and 'notoptions' options.
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*
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* @since 2.2.0
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* @package WordPress
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* @subpackage Option
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*
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* @param string $option Option name.
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*/
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function wp_protect_special_option( $option ) {
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$protected = array( 'alloptions', 'notoptions' );
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if ( in_array( $option, $protected ) )
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wp_die( sprintf( __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) );
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}
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/**
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* Print option value after sanitizing for forms.
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*
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* @uses attr Sanitizes value.
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* @since 1.5.0
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* @package WordPress
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* @subpackage Option
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*
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* @param string $option Option name.
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*/
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function form_option( $option ) {
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echo esc_attr( get_option( $option ) );
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}
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/**
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* Loads and caches all autoloaded options, if available or all options.
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*
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* @since 2.2.0
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* @package WordPress
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* @subpackage Option
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*
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* @return array List of all options.
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*/
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function wp_load_alloptions() {
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global $wpdb;
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if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
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$alloptions = wp_cache_get( 'alloptions', 'options' );
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else
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$alloptions = false;
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if ( !$alloptions ) {
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$suppress = $wpdb->suppress_errors();
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if ( !$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) )
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$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" );
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$wpdb->suppress_errors($suppress);
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$alloptions = array();
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foreach ( (array) $alloptions_db as $o ) {
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$alloptions[$o->option_name] = $o->option_value;
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}
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if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
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wp_cache_add( 'alloptions', $alloptions, 'options' );
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}
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return $alloptions;
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}
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/**
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|
* Loads and caches certain often requested site options if is_multisite() and a peristent cache is not being used.
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*
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* @since 3.0.0
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* @package WordPress
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* @subpackage Option
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*
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* @param int $site_id Optional site ID for which to query the options. Defaults to the current site.
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*/
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function wp_load_core_site_options( $site_id = null ) {
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global $wpdb, $_wp_using_ext_object_cache;
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if ( !is_multisite() || $_wp_using_ext_object_cache || defined( 'WP_INSTALLING' ) )
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return;
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if ( empty($site_id) )
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$site_id = $wpdb->siteid;
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$core_options = array('site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled' );
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$core_options_in = "'" . implode("', '", $core_options) . "'";
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$options = $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $site_id) );
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foreach ( $options as $option ) {
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$key = $option->meta_key;
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$cache_key = "{$site_id}:$key";
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$option->meta_value = maybe_unserialize( $option->meta_value );
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wp_cache_set( $cache_key, $option->meta_value, 'site-options' );
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}
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}
|
|
|
|
/**
|
|
* Update the value of an option that was already added.
|
|
*
|
|
* You do not need to serialize values. If the value needs to be serialized, then
|
|
* it will be serialized before it is inserted into the database. Remember,
|
|
* resources can not be serialized or added as an option.
|
|
*
|
|
* If the option does not exist, then the option will be added with the option
|
|
* value, but you will not be able to set whether it is autoloaded. If you want
|
|
* to set whether an option is autoloaded, then you need to use the add_option().
|
|
*
|
|
* @since 1.0.0
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
*
|
|
* @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the
|
|
* option value to be stored.
|
|
* @uses do_action() Calls 'update_option' hook before updating the option.
|
|
* @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success.
|
|
*
|
|
* @param string $option Option name. Expected to not be SQL-escaped.
|
|
* @param mixed $newvalue Option value. Expected to not be SQL-escaped.
|
|
* @return bool False if value was not updated and true if value was updated.
|
|
*/
|
|
function update_option( $option, $newvalue ) {
|
|
global $wpdb;
|
|
|
|
$option = trim($option);
|
|
if ( empty($option) )
|
|
return false;
|
|
|
|
wp_protect_special_option( $option );
|
|
|
|
if ( is_object($newvalue) )
|
|
$newvalue = wp_clone($newvalue);
|
|
|
|
$newvalue = sanitize_option( $option, $newvalue );
|
|
$oldvalue = get_option( $option );
|
|
$newvalue = apply_filters( 'pre_update_option_' . $option, $newvalue, $oldvalue );
|
|
|
|
// If the new and old values are the same, no need to update.
|
|
if ( $newvalue === $oldvalue )
|
|
return false;
|
|
|
|
if ( false === $oldvalue )
|
|
return add_option( $option, $newvalue );
|
|
|
|
$notoptions = wp_cache_get( 'notoptions', 'options' );
|
|
if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
|
|
unset( $notoptions[$option] );
|
|
wp_cache_set( 'notoptions', $notoptions, 'options' );
|
|
}
|
|
|
|
$_newvalue = $newvalue;
|
|
$newvalue = maybe_serialize( $newvalue );
|
|
|
|
do_action( 'update_option', $option, $oldvalue, $_newvalue );
|
|
if ( ! defined( 'WP_INSTALLING' ) ) {
|
|
$alloptions = wp_load_alloptions();
|
|
if ( isset( $alloptions[$option] ) ) {
|
|
$alloptions[$option] = $_newvalue;
|
|
wp_cache_set( 'alloptions', $alloptions, 'options' );
|
|
} else {
|
|
wp_cache_set( $option, $_newvalue, 'options' );
|
|
}
|
|
}
|
|
|
|
$result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) );
|
|
|
|
if ( $result ) {
|
|
do_action( "update_option_{$option}", $oldvalue, $_newvalue );
|
|
do_action( 'updated_option', $option, $oldvalue, $_newvalue );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Add a new option.
|
|
*
|
|
* You do not need to serialize values. If the value needs to be serialized, then
|
|
* it will be serialized before it is inserted into the database. Remember,
|
|
* resources can not be serialized or added as an option.
|
|
*
|
|
* You can create options without values and then add values later. Does not
|
|
* check whether the option has already been added, but does check that you
|
|
* aren't adding a protected WordPress option. Care should be taken to not name
|
|
* options the same as the ones which are protected and to not add options
|
|
* that were already added.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 1.0.0
|
|
* @link http://alex.vort-x.net/blog/ Thanks Alex Stapleton
|
|
*
|
|
* @uses do_action() Calls 'add_option' hook before adding the option.
|
|
* @uses do_action() Calls 'add_option_$option' and 'added_option' hooks on success.
|
|
*
|
|
* @param string $option Name of option to add. Expected to not be SQL-escaped.
|
|
* @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.
|
|
* @param mixed $deprecated Optional. Description. Not used anymore.
|
|
* @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up.
|
|
* @return null returns when finished.
|
|
*/
|
|
function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {
|
|
global $wpdb;
|
|
|
|
if ( !empty( $deprecated ) )
|
|
_deprecated_argument( __FUNCTION__, '2.3' );
|
|
|
|
$option = trim($option);
|
|
if ( empty($option) )
|
|
return false;
|
|
|
|
wp_protect_special_option( $option );
|
|
|
|
if ( is_object($value) )
|
|
$value = wp_clone($value);
|
|
|
|
$value = sanitize_option( $option, $value );
|
|
|
|
// Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query
|
|
$notoptions = wp_cache_get( 'notoptions', 'options' );
|
|
if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) )
|
|
if ( false !== get_option( $option ) )
|
|
return;
|
|
|
|
$_value = $value;
|
|
$value = maybe_serialize( $value );
|
|
$autoload = ( 'no' === $autoload ) ? 'no' : 'yes';
|
|
do_action( 'add_option', $option, $_value );
|
|
if ( ! defined( 'WP_INSTALLING' ) ) {
|
|
if ( 'yes' == $autoload ) {
|
|
$alloptions = wp_load_alloptions();
|
|
$alloptions[$option] = $value;
|
|
wp_cache_set( 'alloptions', $alloptions, 'options' );
|
|
} else {
|
|
wp_cache_set( $option, $value, 'options' );
|
|
}
|
|
}
|
|
|
|
// This option exists now
|
|
$notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh
|
|
if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
|
|
unset( $notoptions[$option] );
|
|
wp_cache_set( 'notoptions', $notoptions, 'options' );
|
|
}
|
|
|
|
$result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $value, $autoload ) );
|
|
|
|
if ( $result ) {
|
|
do_action( "add_option_{$option}", $option, $_value );
|
|
do_action( 'added_option', $option, $_value );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Removes option by name. Prevents removal of protected WordPress options.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 1.2.0
|
|
*
|
|
* @uses do_action() Calls 'delete_option' hook before option is deleted.
|
|
* @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success.
|
|
*
|
|
* @param string $option Name of option to remove. Expected to not be SQL-escaped.
|
|
* @return bool True, if option is successfully deleted. False on failure.
|
|
*/
|
|
function delete_option( $option ) {
|
|
global $wpdb;
|
|
|
|
wp_protect_special_option( $option );
|
|
|
|
// Get the ID, if no ID then return
|
|
$row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) );
|
|
if ( is_null( $row ) )
|
|
return false;
|
|
do_action( 'delete_option', $option );
|
|
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) );
|
|
if ( ! defined( 'WP_INSTALLING' ) ) {
|
|
if ( 'yes' == $row->autoload ) {
|
|
$alloptions = wp_load_alloptions();
|
|
if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {
|
|
unset( $alloptions[$option] );
|
|
wp_cache_set( 'alloptions', $alloptions, 'options' );
|
|
}
|
|
} else {
|
|
wp_cache_delete( $option, 'options' );
|
|
}
|
|
}
|
|
if ( $result ) {
|
|
do_action( "delete_option_$option", $option );
|
|
do_action( 'deleted_option', $option );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete a transient
|
|
*
|
|
* @since 2.8.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
|
|
* @uses do_action() Calls 'deleted_transient' hook on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @return bool true if successful, false otherwise
|
|
*/
|
|
function delete_transient( $transient ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
do_action( 'delete_transient_' . $transient, $transient );
|
|
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$result = wp_cache_delete( $transient, 'transient' );
|
|
} else {
|
|
$option_timeout = '_transient_timeout_' . $transient;
|
|
$option = '_transient_' . $transient;
|
|
$result = delete_option( $option );
|
|
if ( $result )
|
|
delete_option( $option_timeout );
|
|
}
|
|
|
|
if ( $result )
|
|
do_action( 'deleted_transient', $transient );
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get the value of a transient
|
|
*
|
|
* If the transient does not exist or does not have a value, then the return value
|
|
* will be false.
|
|
*
|
|
* @uses apply_filters() Calls 'pre_transient_$transient' hook before checking the transient.
|
|
* Any value other than false will "short-circuit" the retrieval of the transient
|
|
* and return the returned value.
|
|
* @uses apply_filters() Calls 'transient_$option' hook, after checking the transient, with
|
|
* the transient value.
|
|
*
|
|
* @since 2.8.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped
|
|
* @return mixed Value of transient
|
|
*/
|
|
function get_transient( $transient ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
$pre = apply_filters( 'pre_transient_' . $transient, false );
|
|
if ( false !== $pre )
|
|
return $pre;
|
|
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$value = wp_cache_get( $transient, 'transient' );
|
|
} else {
|
|
$transient_option = '_transient_' . $transient;
|
|
if ( ! defined( 'WP_INSTALLING' ) ) {
|
|
// If option is not in alloptions, it is not autoloaded and thus has a timeout
|
|
$alloptions = wp_load_alloptions();
|
|
if ( !isset( $alloptions[$transient_option] ) ) {
|
|
$transient_timeout = '_transient_timeout_' . $transient;
|
|
if ( get_option( $transient_timeout ) < time() ) {
|
|
delete_option( $transient_option );
|
|
delete_option( $transient_timeout );
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
$value = get_option( $transient_option );
|
|
}
|
|
|
|
return apply_filters( 'transient_' . $transient, $value );
|
|
}
|
|
|
|
/**
|
|
* Set/update the value of a transient
|
|
*
|
|
* You do not need to serialize values. If the value needs to be serialized, then
|
|
* it will be serialized before it is set.
|
|
*
|
|
* @since 2.8.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @uses apply_filters() Calls 'pre_set_transient_$transient' hook to allow overwriting the
|
|
* transient value to be stored.
|
|
* @uses do_action() Calls 'set_transient_$transient' and 'setted_transient' hooks on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @param mixed $value Transient value. Expected to not be SQL-escaped.
|
|
* @param int $expiration Time until expiration in seconds, default 0
|
|
* @return bool False if value was not set and true if value was set.
|
|
*/
|
|
function set_transient( $transient, $value, $expiration = 0 ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
$value = apply_filters( 'pre_set_transient_' . $transient, $value );
|
|
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$result = wp_cache_set( $transient, $value, 'transient', $expiration );
|
|
} else {
|
|
$transient_timeout = '_transient_timeout_' . $transient;
|
|
$transient = '_transient_' . $transient;
|
|
if ( false === get_option( $transient ) ) {
|
|
$autoload = 'yes';
|
|
if ( $expiration ) {
|
|
$autoload = 'no';
|
|
add_option( $transient_timeout, time() + $expiration, '', 'no' );
|
|
}
|
|
$result = add_option( $transient, $value, '', $autoload );
|
|
} else {
|
|
if ( $expiration )
|
|
update_option( $transient_timeout, time() + $expiration );
|
|
$result = update_option( $transient, $value );
|
|
}
|
|
}
|
|
if ( $result ) {
|
|
do_action( 'set_transient_' . $transient );
|
|
do_action( 'setted_transient', $transient );
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Saves and restores user interface settings stored in a cookie.
|
|
*
|
|
* Checks if the current user-settings cookie is updated and stores it. When no
|
|
* cookie exists (different browser used), adds the last saved cookie restoring
|
|
* the settings.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.7.0
|
|
*/
|
|
function wp_user_settings() {
|
|
|
|
if ( ! is_admin() )
|
|
return;
|
|
|
|
if ( defined('DOING_AJAX') )
|
|
return;
|
|
|
|
if ( ! $user = wp_get_current_user() )
|
|
return;
|
|
|
|
$settings = get_user_option( 'user-settings', $user->ID );
|
|
|
|
if ( isset( $_COOKIE['wp-settings-' . $user->ID] ) ) {
|
|
$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );
|
|
|
|
if ( ! empty( $cookie ) && strpos( $cookie, '=' ) ) {
|
|
if ( $cookie == $settings )
|
|
return;
|
|
|
|
$last_time = (int) get_user_option( 'user-settings-time', $user->ID );
|
|
$saved = isset( $_COOKIE['wp-settings-time-' . $user->ID]) ? preg_replace( '/[^0-9]/', '', $_COOKIE['wp-settings-time-' . $user->ID] ) : 0;
|
|
|
|
if ( $saved > $last_time ) {
|
|
update_user_option( $user->ID, 'user-settings', $cookie, false );
|
|
update_user_option( $user->ID, 'user-settings-time', time() - 5, false );
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
setcookie( 'wp-settings-' . $user->ID, $settings, time() + 31536000, SITECOOKIEPATH );
|
|
setcookie( 'wp-settings-time-' . $user->ID, time(), time() + 31536000, SITECOOKIEPATH );
|
|
$_COOKIE['wp-settings-' . $user->ID] = $settings;
|
|
}
|
|
|
|
/**
|
|
* Retrieve user interface setting value based on setting name.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.7.0
|
|
*
|
|
* @param string $name The name of the setting.
|
|
* @param string $default Optional default value to return when $name is not set.
|
|
* @return mixed the last saved user setting or the default value/false if it doesn't exist.
|
|
*/
|
|
function get_user_setting( $name, $default = false ) {
|
|
|
|
$all = get_all_user_settings();
|
|
|
|
return isset($all[$name]) ? $all[$name] : $default;
|
|
}
|
|
|
|
/**
|
|
* Add or update user interface setting.
|
|
*
|
|
* Both $name and $value can contain only ASCII letters, numbers and underscores.
|
|
* This function has to be used before any output has started as it calls setcookie().
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $name The name of the setting.
|
|
* @param string $value The value for the setting.
|
|
* @return bool true if set successfully/false if not.
|
|
*/
|
|
function set_user_setting( $name, $value ) {
|
|
|
|
if ( headers_sent() )
|
|
return false;
|
|
|
|
$all = get_all_user_settings();
|
|
$name = preg_replace( '/[^A-Za-z0-9_]+/', '', $name );
|
|
|
|
if ( empty($name) )
|
|
return false;
|
|
|
|
$all[$name] = $value;
|
|
|
|
return wp_set_all_user_settings($all);
|
|
}
|
|
|
|
/**
|
|
* Delete user interface settings.
|
|
*
|
|
* Deleting settings would reset them to the defaults.
|
|
* This function has to be used before any output has started as it calls setcookie().
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.7.0
|
|
*
|
|
* @param mixed $names The name or array of names of the setting to be deleted.
|
|
* @return bool true if deleted successfully/false if not.
|
|
*/
|
|
function delete_user_setting( $names ) {
|
|
|
|
if ( headers_sent() )
|
|
return false;
|
|
|
|
$all = get_all_user_settings();
|
|
$names = (array) $names;
|
|
|
|
foreach ( $names as $name ) {
|
|
if ( isset($all[$name]) ) {
|
|
unset($all[$name]);
|
|
$deleted = true;
|
|
}
|
|
}
|
|
|
|
if ( isset($deleted) )
|
|
return wp_set_all_user_settings($all);
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve all user interface settings.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.7.0
|
|
*
|
|
* @return array the last saved user settings or empty array.
|
|
*/
|
|
function get_all_user_settings() {
|
|
global $_updated_user_settings;
|
|
|
|
if ( ! $user = wp_get_current_user() )
|
|
return array();
|
|
|
|
if ( isset($_updated_user_settings) && is_array($_updated_user_settings) )
|
|
return $_updated_user_settings;
|
|
|
|
$all = array();
|
|
if ( isset($_COOKIE['wp-settings-' . $user->ID]) ) {
|
|
$cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );
|
|
|
|
if ( $cookie && strpos($cookie, '=') ) // the '=' cannot be 1st char
|
|
parse_str($cookie, $all);
|
|
|
|
} else {
|
|
$option = get_user_option('user-settings', $user->ID);
|
|
if ( $option && is_string($option) )
|
|
parse_str( $option, $all );
|
|
}
|
|
|
|
return $all;
|
|
}
|
|
|
|
/**
|
|
* Private. Set all user interface settings.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.8.0
|
|
*
|
|
* @param unknown $all
|
|
* @return bool
|
|
*/
|
|
function wp_set_all_user_settings($all) {
|
|
global $_updated_user_settings;
|
|
|
|
if ( ! $user = wp_get_current_user() )
|
|
return false;
|
|
|
|
$_updated_user_settings = $all;
|
|
$settings = '';
|
|
foreach ( $all as $k => $v ) {
|
|
$v = preg_replace( '/[^A-Za-z0-9_]+/', '', $v );
|
|
$settings .= $k . '=' . $v . '&';
|
|
}
|
|
|
|
$settings = rtrim($settings, '&');
|
|
|
|
update_user_option( $user->ID, 'user-settings', $settings, false );
|
|
update_user_option( $user->ID, 'user-settings-time', time(), false );
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Delete the user settings of the current user.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.7.0
|
|
*/
|
|
function delete_all_user_settings() {
|
|
if ( ! $user = wp_get_current_user() )
|
|
return;
|
|
|
|
update_user_option( $user->ID, 'user-settings', '', false );
|
|
setcookie('wp-settings-' . $user->ID, ' ', time() - 31536000, SITECOOKIEPATH);
|
|
}
|
|
|
|
/**
|
|
* Serialize data, if needed.
|
|
*
|
|
* @since 2.0.5
|
|
*
|
|
* @param mixed $data Data that might be serialized.
|
|
* @return mixed A scalar data
|
|
*/
|
|
function maybe_serialize( $data ) {
|
|
if ( is_array( $data ) || is_object( $data ) )
|
|
return serialize( $data );
|
|
|
|
if ( is_serialized( $data ) )
|
|
return serialize( $data );
|
|
|
|
return $data;
|
|
}
|
|
|
|
/**
|
|
* Retrieve post title from XMLRPC XML.
|
|
*
|
|
* If the title element is not part of the XML, then the default post title from
|
|
* the $post_default_title will be used instead.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage XMLRPC
|
|
* @since 0.71
|
|
*
|
|
* @global string $post_default_title Default XMLRPC post title.
|
|
*
|
|
* @param string $content XMLRPC XML Request content
|
|
* @return string Post title
|
|
*/
|
|
function xmlrpc_getposttitle( $content ) {
|
|
global $post_default_title;
|
|
if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {
|
|
$post_title = $matchtitle[1];
|
|
} else {
|
|
$post_title = $post_default_title;
|
|
}
|
|
return $post_title;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the post category or categories from XMLRPC XML.
|
|
*
|
|
* If the category element is not found, then the default post category will be
|
|
* used. The return type then would be what $post_default_category. If the
|
|
* category is found, then it will always be an array.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage XMLRPC
|
|
* @since 0.71
|
|
*
|
|
* @global string $post_default_category Default XMLRPC post category.
|
|
*
|
|
* @param string $content XMLRPC XML Request content
|
|
* @return string|array List of categories or category name.
|
|
*/
|
|
function xmlrpc_getpostcategory( $content ) {
|
|
global $post_default_category;
|
|
if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) {
|
|
$post_category = trim( $matchcat[1], ',' );
|
|
$post_category = explode( ',', $post_category );
|
|
} else {
|
|
$post_category = $post_default_category;
|
|
}
|
|
return $post_category;
|
|
}
|
|
|
|
/**
|
|
* XMLRPC XML content without title and category elements.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage XMLRPC
|
|
* @since 0.71
|
|
*
|
|
* @param string $content XMLRPC XML Request content
|
|
* @return string XMLRPC XML Request content without title and category elements.
|
|
*/
|
|
function xmlrpc_removepostdata( $content ) {
|
|
$content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content );
|
|
$content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content );
|
|
$content = trim( $content );
|
|
return $content;
|
|
}
|
|
|
|
/**
|
|
* Open the file handle for debugging.
|
|
*
|
|
* This function is used for XMLRPC feature, but it is general purpose enough
|
|
* to be used in anywhere.
|
|
*
|
|
* @see fopen() for mode options.
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 0.71
|
|
* @uses $debug Used for whether debugging is enabled.
|
|
*
|
|
* @param string $filename File path to debug file.
|
|
* @param string $mode Same as fopen() mode parameter.
|
|
* @return bool|resource File handle. False on failure.
|
|
*/
|
|
function debug_fopen( $filename, $mode ) {
|
|
global $debug;
|
|
if ( 1 == $debug ) {
|
|
$fp = fopen( $filename, $mode );
|
|
return $fp;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Write contents to the file used for debugging.
|
|
*
|
|
* Technically, this can be used to write to any file handle when the global
|
|
* $debug is set to 1 or true.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 0.71
|
|
* @uses $debug Used for whether debugging is enabled.
|
|
*
|
|
* @param resource $fp File handle for debugging file.
|
|
* @param string $string Content to write to debug file.
|
|
*/
|
|
function debug_fwrite( $fp, $string ) {
|
|
global $debug;
|
|
if ( 1 == $debug )
|
|
fwrite( $fp, $string );
|
|
}
|
|
|
|
/**
|
|
* Close the debugging file handle.
|
|
*
|
|
* Technically, this can be used to close any file handle when the global $debug
|
|
* is set to 1 or true.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 0.71
|
|
* @uses $debug Used for whether debugging is enabled.
|
|
*
|
|
* @param resource $fp Debug File handle.
|
|
*/
|
|
function debug_fclose( $fp ) {
|
|
global $debug;
|
|
if ( 1 == $debug )
|
|
fclose( $fp );
|
|
}
|
|
|
|
/**
|
|
* Check content for video and audio links to add as enclosures.
|
|
*
|
|
* Will not add enclosures that have already been added and will
|
|
* remove enclosures that are no longer in the post. This is called as
|
|
* pingbacks and trackbacks.
|
|
*
|
|
* @package WordPress
|
|
* @since 1.5.0
|
|
*
|
|
* @uses $wpdb
|
|
*
|
|
* @param string $content Post Content
|
|
* @param int $post_ID Post ID
|
|
*/
|
|
function do_enclose( $content, $post_ID ) {
|
|
global $wpdb;
|
|
include_once( ABSPATH . WPINC . '/class-IXR.php' );
|
|
|
|
$log = debug_fopen( ABSPATH . 'enclosures.log', 'a' );
|
|
$post_links = array();
|
|
debug_fwrite( $log, 'BEGIN ' . date( 'YmdHis', time() ) . "\n" );
|
|
|
|
$pung = get_enclosed( $post_ID );
|
|
|
|
$ltrs = '\w';
|
|
$gunk = '/#~:.?+=&%@!\-';
|
|
$punc = '.:?\-';
|
|
$any = $ltrs . $gunk . $punc;
|
|
|
|
preg_match_all( "{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp );
|
|
|
|
debug_fwrite( $log, 'Post contents:' );
|
|
debug_fwrite( $log, $content . "\n" );
|
|
|
|
foreach ( $pung as $link_test ) {
|
|
if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post
|
|
$mid = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, $link_test . '%') );
|
|
do_action( 'delete_postmeta', $mid );
|
|
$wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN(%s)", implode( ',', $mid ) ) );
|
|
do_action( 'deleted_postmeta', $mid );
|
|
}
|
|
}
|
|
|
|
foreach ( (array) $post_links_temp[0] as $link_test ) {
|
|
if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already
|
|
$test = @parse_url( $link_test );
|
|
if ( false === $test )
|
|
continue;
|
|
if ( isset( $test['query'] ) )
|
|
$post_links[] = $link_test;
|
|
elseif ( $test['path'] != '/' && $test['path'] != '' )
|
|
$post_links[] = $link_test;
|
|
}
|
|
}
|
|
|
|
foreach ( (array) $post_links as $url ) {
|
|
if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, $url . '%' ) ) ) {
|
|
|
|
if ( $headers = wp_get_http_headers( $url) ) {
|
|
$len = (int) $headers['content-length'];
|
|
$type = $headers['content-type'];
|
|
$allowed_types = array( 'video', 'audio' );
|
|
|
|
// Check to see if we can figure out the mime type from
|
|
// the extension
|
|
$url_parts = @parse_url( $url );
|
|
if ( false !== $url_parts ) {
|
|
$extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION );
|
|
if ( !empty( $extension ) ) {
|
|
foreach ( get_allowed_mime_types( ) as $exts => $mime ) {
|
|
if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
|
|
$type = $mime;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
|
|
$meta_value = "$url\n$len\n$type\n";
|
|
$wpdb->insert($wpdb->postmeta, array('post_id' => $post_ID, 'meta_key' => 'enclosure', 'meta_value' => $meta_value) );
|
|
do_action( 'added_postmeta', $wpdb->insert_id, $post_ID, 'enclosure', $meta_value );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Perform a HTTP HEAD or GET request.
|
|
*
|
|
* If $file_path is a writable filename, this will do a GET request and write
|
|
* the file to that path.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $url URL to fetch.
|
|
* @param string|bool $file_path Optional. File path to write request to.
|
|
* @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false.
|
|
* @return bool|string False on failure and string of headers if HEAD request.
|
|
*/
|
|
function wp_get_http( $url, $file_path = false, $red = 1 ) {
|
|
@set_time_limit( 60 );
|
|
|
|
if ( $red > 5 )
|
|
return false;
|
|
|
|
$options = array();
|
|
$options['redirection'] = 5;
|
|
|
|
if ( false == $file_path )
|
|
$options['method'] = 'HEAD';
|
|
else
|
|
$options['method'] = 'GET';
|
|
|
|
$response = wp_remote_request($url, $options);
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
$headers = wp_remote_retrieve_headers( $response );
|
|
$headers['response'] = $response['response']['code'];
|
|
|
|
// WP_HTTP no longer follows redirects for HEAD requests.
|
|
if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {
|
|
return wp_get_http( $headers['location'], $file_path, ++$red );
|
|
}
|
|
|
|
if ( false == $file_path )
|
|
return $headers;
|
|
|
|
// GET request - write it to the supplied filename
|
|
$out_fp = fopen($file_path, 'w');
|
|
if ( !$out_fp )
|
|
return $headers;
|
|
|
|
fwrite( $out_fp, $response['body']);
|
|
fclose($out_fp);
|
|
clearstatcache();
|
|
|
|
return $headers;
|
|
}
|
|
|
|
/**
|
|
* Retrieve HTTP Headers from URL.
|
|
*
|
|
* @since 1.5.1
|
|
*
|
|
* @param string $url
|
|
* @param bool $deprecated Not Used.
|
|
* @return bool|string False on failure, headers on success.
|
|
*/
|
|
function wp_get_http_headers( $url, $deprecated = false ) {
|
|
if ( !empty( $deprecated ) )
|
|
_deprecated_argument( __FUNCTION__, '2.7' );
|
|
|
|
$response = wp_remote_head( $url );
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
return wp_remote_retrieve_headers( $response );
|
|
}
|
|
|
|
/**
|
|
* Whether today is a new day.
|
|
*
|
|
* @since 0.71
|
|
* @uses $day Today
|
|
* @uses $previousday Previous day
|
|
*
|
|
* @return int 1 when new day, 0 if not a new day.
|
|
*/
|
|
function is_new_day() {
|
|
global $day, $previousday;
|
|
if ( $day != $previousday )
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Build URL query based on an associative and, or indexed array.
|
|
*
|
|
* This is a convenient function for easily building url queries. It sets the
|
|
* separator to '&' and uses _http_build_query() function.
|
|
*
|
|
* @see _http_build_query() Used to build the query
|
|
* @link http://us2.php.net/manual/en/function.http-build-query.php more on what
|
|
* http_build_query() does.
|
|
*
|
|
* @since 2.3.0
|
|
*
|
|
* @param array $data URL-encode key/value pairs.
|
|
* @return string URL encoded string
|
|
*/
|
|
function build_query( $data ) {
|
|
return _http_build_query( $data, null, '&', '', false );
|
|
}
|
|
|
|
/**
|
|
* Retrieve a modified URL query string.
|
|
*
|
|
* You can rebuild the URL and append a new query variable to the URL query by
|
|
* using this function. You can also retrieve the full URL with query data.
|
|
*
|
|
* Adding a single key & value or an associative array. Setting a key value to
|
|
* emptystring removes the key. Omitting oldquery_or_uri uses the $_SERVER
|
|
* value.
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @param mixed $param1 Either newkey or an associative_array
|
|
* @param mixed $param2 Either newvalue or oldquery or uri
|
|
* @param mixed $param3 Optional. Old query or uri
|
|
* @return string New URL query string.
|
|
*/
|
|
function add_query_arg() {
|
|
$ret = '';
|
|
if ( is_array( func_get_arg(0) ) ) {
|
|
if ( @func_num_args() < 2 || false === @func_get_arg( 1 ) )
|
|
$uri = $_SERVER['REQUEST_URI'];
|
|
else
|
|
$uri = @func_get_arg( 1 );
|
|
} else {
|
|
if ( @func_num_args() < 3 || false === @func_get_arg( 2 ) )
|
|
$uri = $_SERVER['REQUEST_URI'];
|
|
else
|
|
$uri = @func_get_arg( 2 );
|
|
}
|
|
|
|
if ( $frag = strstr( $uri, '#' ) )
|
|
$uri = substr( $uri, 0, -strlen( $frag ) );
|
|
else
|
|
$frag = '';
|
|
|
|
if ( preg_match( '|^https?://|i', $uri, $matches ) ) {
|
|
$protocol = $matches[0];
|
|
$uri = substr( $uri, strlen( $protocol ) );
|
|
} else {
|
|
$protocol = '';
|
|
}
|
|
|
|
if ( strpos( $uri, '?' ) !== false ) {
|
|
$parts = explode( '?', $uri, 2 );
|
|
if ( 1 == count( $parts ) ) {
|
|
$base = '?';
|
|
$query = $parts[0];
|
|
} else {
|
|
$base = $parts[0] . '?';
|
|
$query = $parts[1];
|
|
}
|
|
} elseif ( !empty( $protocol ) || strpos( $uri, '=' ) === false ) {
|
|
$base = $uri . '?';
|
|
$query = '';
|
|
} else {
|
|
$base = '';
|
|
$query = $uri;
|
|
}
|
|
|
|
wp_parse_str( $query, $qs );
|
|
$qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string
|
|
if ( is_array( func_get_arg( 0 ) ) ) {
|
|
$kayvees = func_get_arg( 0 );
|
|
$qs = array_merge( $qs, $kayvees );
|
|
} else {
|
|
$qs[func_get_arg( 0 )] = func_get_arg( 1 );
|
|
}
|
|
|
|
foreach ( (array) $qs as $k => $v ) {
|
|
if ( $v === false )
|
|
unset( $qs[$k] );
|
|
}
|
|
|
|
$ret = build_query( $qs );
|
|
$ret = trim( $ret, '?' );
|
|
$ret = preg_replace( '#=(&|$)#', '$1', $ret );
|
|
$ret = $protocol . $base . $ret . $frag;
|
|
$ret = rtrim( $ret, '?' );
|
|
return $ret;
|
|
}
|
|
|
|
/**
|
|
* Removes an item or list from the query string.
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @param string|array $key Query key or keys to remove.
|
|
* @param bool $query When false uses the $_SERVER value.
|
|
* @return string New URL query string.
|
|
*/
|
|
function remove_query_arg( $key, $query=false ) {
|
|
if ( is_array( $key ) ) { // removing multiple keys
|
|
foreach ( $key as $k )
|
|
$query = add_query_arg( $k, false, $query );
|
|
return $query;
|
|
}
|
|
return add_query_arg( $key, false, $query );
|
|
}
|
|
|
|
/**
|
|
* Walks the array while sanitizing the contents.
|
|
*
|
|
* @since 0.71
|
|
*
|
|
* @param array $array Array to used to walk while sanitizing contents.
|
|
* @return array Sanitized $array.
|
|
*/
|
|
function add_magic_quotes( $array ) {
|
|
foreach ( (array) $array as $k => $v ) {
|
|
if ( is_array( $v ) ) {
|
|
$array[$k] = add_magic_quotes( $v );
|
|
} else {
|
|
$array[$k] = addslashes( $v );
|
|
}
|
|
}
|
|
return $array;
|
|
}
|
|
|
|
/**
|
|
* HTTP request for URI to retrieve content.
|
|
*
|
|
* @since 1.5.1
|
|
* @uses wp_remote_get()
|
|
*
|
|
* @param string $uri URI/URL of web page to retrieve.
|
|
* @return bool|string HTTP content. False on failure.
|
|
*/
|
|
function wp_remote_fopen( $uri ) {
|
|
$parsed_url = @parse_url( $uri );
|
|
|
|
if ( !$parsed_url || !is_array( $parsed_url ) )
|
|
return false;
|
|
|
|
$options = array();
|
|
$options['timeout'] = 10;
|
|
|
|
$response = wp_remote_get( $uri, $options );
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
return $response['body'];
|
|
}
|
|
|
|
/**
|
|
* Set up the WordPress query.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $query_vars Default WP_Query arguments.
|
|
*/
|
|
function wp( $query_vars = '' ) {
|
|
global $wp, $wp_query, $wp_the_query;
|
|
$wp->main( $query_vars );
|
|
|
|
if ( !isset($wp_the_query) )
|
|
$wp_the_query = $wp_query;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the description for the HTTP status.
|
|
*
|
|
* @since 2.3.0
|
|
*
|
|
* @param int $code HTTP status code.
|
|
* @return string Empty string if not found, or description if found.
|
|
*/
|
|
function get_status_header_desc( $code ) {
|
|
global $wp_header_to_desc;
|
|
|
|
$code = absint( $code );
|
|
|
|
if ( !isset( $wp_header_to_desc ) ) {
|
|
$wp_header_to_desc = array(
|
|
100 => 'Continue',
|
|
101 => 'Switching Protocols',
|
|
102 => 'Processing',
|
|
|
|
200 => 'OK',
|
|
201 => 'Created',
|
|
202 => 'Accepted',
|
|
203 => 'Non-Authoritative Information',
|
|
204 => 'No Content',
|
|
205 => 'Reset Content',
|
|
206 => 'Partial Content',
|
|
207 => 'Multi-Status',
|
|
226 => 'IM Used',
|
|
|
|
300 => 'Multiple Choices',
|
|
301 => 'Moved Permanently',
|
|
302 => 'Found',
|
|
303 => 'See Other',
|
|
304 => 'Not Modified',
|
|
305 => 'Use Proxy',
|
|
306 => 'Reserved',
|
|
307 => 'Temporary Redirect',
|
|
|
|
400 => 'Bad Request',
|
|
401 => 'Unauthorized',
|
|
402 => 'Payment Required',
|
|
403 => 'Forbidden',
|
|
404 => 'Not Found',
|
|
405 => 'Method Not Allowed',
|
|
406 => 'Not Acceptable',
|
|
407 => 'Proxy Authentication Required',
|
|
408 => 'Request Timeout',
|
|
409 => 'Conflict',
|
|
410 => 'Gone',
|
|
411 => 'Length Required',
|
|
412 => 'Precondition Failed',
|
|
413 => 'Request Entity Too Large',
|
|
414 => 'Request-URI Too Long',
|
|
415 => 'Unsupported Media Type',
|
|
416 => 'Requested Range Not Satisfiable',
|
|
417 => 'Expectation Failed',
|
|
422 => 'Unprocessable Entity',
|
|
423 => 'Locked',
|
|
424 => 'Failed Dependency',
|
|
426 => 'Upgrade Required',
|
|
|
|
500 => 'Internal Server Error',
|
|
501 => 'Not Implemented',
|
|
502 => 'Bad Gateway',
|
|
503 => 'Service Unavailable',
|
|
504 => 'Gateway Timeout',
|
|
505 => 'HTTP Version Not Supported',
|
|
506 => 'Variant Also Negotiates',
|
|
507 => 'Insufficient Storage',
|
|
510 => 'Not Extended'
|
|
);
|
|
}
|
|
|
|
if ( isset( $wp_header_to_desc[$code] ) )
|
|
return $wp_header_to_desc[$code];
|
|
else
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Set HTTP status header.
|
|
*
|
|
* @since 2.0.0
|
|
* @uses apply_filters() Calls 'status_header' on status header string, HTTP
|
|
* HTTP code, HTTP code description, and protocol string as separate
|
|
* parameters.
|
|
*
|
|
* @param int $header HTTP status code
|
|
* @return unknown
|
|
*/
|
|
function status_header( $header ) {
|
|
$text = get_status_header_desc( $header );
|
|
|
|
if ( empty( $text ) )
|
|
return false;
|
|
|
|
$protocol = $_SERVER["SERVER_PROTOCOL"];
|
|
if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
|
|
$protocol = 'HTTP/1.0';
|
|
$status_header = "$protocol $header $text";
|
|
if ( function_exists( 'apply_filters' ) )
|
|
$status_header = apply_filters( 'status_header', $status_header, $header, $text, $protocol );
|
|
|
|
return @header( $status_header, true, $header );
|
|
}
|
|
|
|
/**
|
|
* Gets the header information to prevent caching.
|
|
*
|
|
* The several different headers cover the different ways cache prevention is handled
|
|
* by different browsers
|
|
*
|
|
* @since 2.8
|
|
*
|
|
* @uses apply_filters()
|
|
* @return array The associative array of header names and field values.
|
|
*/
|
|
function wp_get_nocache_headers() {
|
|
$headers = array(
|
|
'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT',
|
|
'Last-Modified' => gmdate( 'D, d M Y H:i:s' ) . ' GMT',
|
|
'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
|
|
'Pragma' => 'no-cache',
|
|
);
|
|
|
|
if ( function_exists('apply_filters') ) {
|
|
$headers = apply_filters('nocache_headers', $headers);
|
|
}
|
|
return $headers;
|
|
}
|
|
|
|
/**
|
|
* Sets the headers to prevent caching for the different browsers.
|
|
*
|
|
* Different browsers support different nocache headers, so several headers must
|
|
* be sent so that all of them get the point that no caching should occur.
|
|
*
|
|
* @since 2.0.0
|
|
* @uses wp_get_nocache_headers()
|
|
*/
|
|
function nocache_headers() {
|
|
$headers = wp_get_nocache_headers();
|
|
foreach( (array) $headers as $name => $field_value )
|
|
@header("{$name}: {$field_value}");
|
|
}
|
|
|
|
/**
|
|
* Set the headers for caching for 10 days with JavaScript content type.
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
function cache_javascript_headers() {
|
|
$expiresOffset = 864000; // 10 days
|
|
header( "Content-Type: text/javascript; charset=" . get_bloginfo( 'charset' ) );
|
|
header( "Vary: Accept-Encoding" ); // Handle proxies
|
|
header( "Expires: " . gmdate( "D, d M Y H:i:s", time() + $expiresOffset ) . " GMT" );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the number of database queries during the WordPress execution.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @return int Number of database queries
|
|
*/
|
|
function get_num_queries() {
|
|
global $wpdb;
|
|
return $wpdb->num_queries;
|
|
}
|
|
|
|
/**
|
|
* Whether input is yes or no. Must be 'y' to be true.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param string $yn Character string containing either 'y' or 'n'
|
|
* @return bool True if yes, false on anything else
|
|
*/
|
|
function bool_from_yn( $yn ) {
|
|
return ( strtolower( $yn ) == 'y' );
|
|
}
|
|
|
|
/**
|
|
* Loads the feed template from the use of an action hook.
|
|
*
|
|
* If the feed action does not have a hook, then the function will die with a
|
|
* message telling the visitor that the feed is not valid.
|
|
*
|
|
* It is better to only have one hook for each feed.
|
|
*
|
|
* @since 2.1.0
|
|
* @uses $wp_query Used to tell if the use a comment feed.
|
|
* @uses do_action() Calls 'do_feed_$feed' hook, if a hook exists for the feed.
|
|
*/
|
|
function do_feed() {
|
|
global $wp_query;
|
|
|
|
$feed = get_query_var( 'feed' );
|
|
|
|
// Remove the pad, if present.
|
|
$feed = preg_replace( '/^_+/', '', $feed );
|
|
|
|
if ( $feed == '' || $feed == 'feed' )
|
|
$feed = get_default_feed();
|
|
|
|
$hook = 'do_feed_' . $feed;
|
|
if ( !has_action($hook) ) {
|
|
$message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed));
|
|
wp_die( $message, '', array( 'response' => 404 ) );
|
|
}
|
|
|
|
do_action( $hook, $wp_query->is_comment_feed );
|
|
}
|
|
|
|
/**
|
|
* Load the RDF RSS 0.91 Feed template.
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
function do_feed_rdf() {
|
|
load_template( ABSPATH . WPINC . '/feed-rdf.php' );
|
|
}
|
|
|
|
/**
|
|
* Load the RSS 1.0 Feed Template
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
function do_feed_rss() {
|
|
load_template( ABSPATH . WPINC . '/feed-rss.php' );
|
|
}
|
|
|
|
/**
|
|
* Load either the RSS2 comment feed or the RSS2 posts feed.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param bool $for_comments True for the comment feed, false for normal feed.
|
|
*/
|
|
function do_feed_rss2( $for_comments ) {
|
|
if ( $for_comments )
|
|
load_template( ABSPATH . WPINC . '/feed-rss2-comments.php' );
|
|
else
|
|
load_template( ABSPATH . WPINC . '/feed-rss2.php' );
|
|
}
|
|
|
|
/**
|
|
* Load either Atom comment feed or Atom posts feed.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param bool $for_comments True for the comment feed, false for normal feed.
|
|
*/
|
|
function do_feed_atom( $for_comments ) {
|
|
if ($for_comments)
|
|
load_template( ABSPATH . WPINC . '/feed-atom-comments.php');
|
|
else
|
|
load_template( ABSPATH . WPINC . '/feed-atom.php' );
|
|
}
|
|
|
|
/**
|
|
* Display the robot.txt file content.
|
|
*
|
|
* The echo content should be with usage of the permalinks or for creating the
|
|
* robot.txt file.
|
|
*
|
|
* @since 2.1.0
|
|
* @uses do_action() Calls 'do_robotstxt' hook for displaying robot.txt rules.
|
|
*/
|
|
function do_robots() {
|
|
header( 'Content-Type: text/plain; charset=utf-8' );
|
|
|
|
do_action( 'do_robotstxt' );
|
|
|
|
$output = '';
|
|
$public = get_option( 'blog_public' );
|
|
if ( '0' == $public ) {
|
|
$output .= "User-agent: *\n";
|
|
$output .= "Disallow: /\n";
|
|
} else {
|
|
$output .= "User-agent: *\n";
|
|
$output .= "Disallow:\n";
|
|
}
|
|
|
|
echo apply_filters('robots_txt', $output, $public);
|
|
}
|
|
|
|
/**
|
|
* Test whether blog is already installed.
|
|
*
|
|
* The cache will be checked first. If you have a cache plugin, which saves the
|
|
* cache values, then this will work. If you use the default WordPress cache,
|
|
* and the database goes away, then you might have problems.
|
|
*
|
|
* Checks for the option siteurl for whether WordPress is installed.
|
|
*
|
|
* @since 2.1.0
|
|
* @uses $wpdb
|
|
*
|
|
* @return bool Whether blog is already installed.
|
|
*/
|
|
function is_blog_installed() {
|
|
global $wpdb;
|
|
|
|
// Check cache first. If options table goes away and we have true cached, oh well.
|
|
if ( wp_cache_get( 'is_blog_installed' ) )
|
|
return true;
|
|
|
|
$suppress = $wpdb->suppress_errors();
|
|
if ( ! defined( 'WP_INSTALLING' ) ) {
|
|
$alloptions = wp_load_alloptions();
|
|
}
|
|
// If siteurl is not set to autoload, check it specifically
|
|
if ( !isset( $alloptions['siteurl'] ) )
|
|
$installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" );
|
|
else
|
|
$installed = $alloptions['siteurl'];
|
|
$wpdb->suppress_errors( $suppress );
|
|
|
|
$installed = !empty( $installed );
|
|
wp_cache_set( 'is_blog_installed', $installed );
|
|
|
|
if ( $installed )
|
|
return true;
|
|
|
|
$suppress = $wpdb->suppress_errors();
|
|
$tables = $wpdb->get_col('SHOW TABLES');
|
|
$wpdb->suppress_errors( $suppress );
|
|
|
|
$wp_tables = $wpdb->tables();
|
|
// Loop over the WP tables. If none exist, then scratch install is allowed.
|
|
// If one or more exist, suggest table repair since we got here because the options
|
|
// table could not be accessed.
|
|
foreach ( $wp_tables as $table ) {
|
|
// If one of the WP tables exist, then we are in an insane state.
|
|
if ( in_array( $table, $tables ) ) {
|
|
// The existence of custom user tables shouldn't suggest an insane state or prevent a clean install.
|
|
if ( defined( 'CUSTOM_USER_TABLE' ) && CUSTOM_USER_TABLE == $table )
|
|
continue;
|
|
if ( defined( 'CUSTOM_USER_META_TABLE' ) && CUSTOM_USER_META_TABLE == $table )
|
|
continue;
|
|
|
|
// If visiting repair.php, return true and let it take over.
|
|
if ( defined('WP_REPAIRING') )
|
|
return true;
|
|
// Die with a DB error.
|
|
$wpdb->error = sprintf( /*WP_I18N_NO_TABLES*/'One or more database tables are unavailable. The database may need to be <a href="%s">repaired</a>.'/*/WP_I18N_NO_TABLES*/, 'maint/repair.php?referrer=is_blog_installed' );
|
|
dead_db();
|
|
}
|
|
}
|
|
|
|
wp_cache_set( 'is_blog_installed', false );
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve URL with nonce added to URL query.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $actionurl URL to add nonce action
|
|
* @param string $action Optional. Nonce action name
|
|
* @return string URL with nonce action added.
|
|
*/
|
|
function wp_nonce_url( $actionurl, $action = -1 ) {
|
|
$actionurl = str_replace( '&', '&', $actionurl );
|
|
return esc_html( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) );
|
|
}
|
|
|
|
/**
|
|
* Retrieve or display nonce hidden field for forms.
|
|
*
|
|
* The nonce field is used to validate that the contents of the form came from
|
|
* the location on the current site and not somewhere else. The nonce does not
|
|
* offer absolute protection, but should protect against most cases. It is very
|
|
* important to use nonce field in forms.
|
|
*
|
|
* If you set $echo to true and set $referer to true, then you will need to
|
|
* retrieve the {@link wp_referer_field() wp referer field}. If you have the
|
|
* $referer set to true and are echoing the nonce field, it will also echo the
|
|
* referer field.
|
|
*
|
|
* The $action and $name are optional, but if you want to have better security,
|
|
* it is strongly suggested to set those two parameters. It is easier to just
|
|
* call the function without any parameters, because validation of the nonce
|
|
* doesn't require any parameters, but since crackers know what the default is
|
|
* it won't be difficult for them to find a way around your nonce and cause
|
|
* damage.
|
|
*
|
|
* The input name will be whatever $name value you gave. The input value will be
|
|
* the nonce creation value.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $action Optional. Action name.
|
|
* @param string $name Optional. Nonce name.
|
|
* @param bool $referer Optional, default true. Whether to set the referer field for validation.
|
|
* @param bool $echo Optional, default true. Whether to display or return hidden form field.
|
|
* @return string Nonce field.
|
|
*/
|
|
function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) {
|
|
$name = esc_attr( $name );
|
|
$nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce( $action ) . '" />';
|
|
if ( $echo )
|
|
echo $nonce_field;
|
|
|
|
if ( $referer )
|
|
wp_referer_field( $echo );
|
|
|
|
return $nonce_field;
|
|
}
|
|
|
|
/**
|
|
* Retrieve or display referer hidden field for forms.
|
|
*
|
|
* The referer link is the current Request URI from the server super global. The
|
|
* input name is '_wp_http_referer', in case you wanted to check manually.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param bool $echo Whether to echo or return the referer field.
|
|
* @return string Referer field.
|
|
*/
|
|
function wp_referer_field( $echo = true ) {
|
|
$ref = esc_attr( $_SERVER['REQUEST_URI'] );
|
|
$referer_field = '<input type="hidden" name="_wp_http_referer" value="'. $ref . '" />';
|
|
|
|
if ( $echo )
|
|
echo $referer_field;
|
|
return $referer_field;
|
|
}
|
|
|
|
/**
|
|
* Retrieve or display original referer hidden field for forms.
|
|
*
|
|
* The input name is '_wp_original_http_referer' and will be either the same
|
|
* value of {@link wp_referer_field()}, if that was posted already or it will
|
|
* be the current page, if it doesn't exist.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param bool $echo Whether to echo the original http referer
|
|
* @param string $jump_back_to Optional, default is 'current'. Can be 'previous' or page you want to jump back to.
|
|
* @return string Original referer field.
|
|
*/
|
|
function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) {
|
|
$jump_back_to = ( 'previous' == $jump_back_to ) ? wp_get_referer() : $_SERVER['REQUEST_URI'];
|
|
$ref = ( wp_get_original_referer() ) ? wp_get_original_referer() : $jump_back_to;
|
|
$orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr( stripslashes( $ref ) ) . '" />';
|
|
if ( $echo )
|
|
echo $orig_referer_field;
|
|
return $orig_referer_field;
|
|
}
|
|
|
|
/**
|
|
* Retrieve referer from '_wp_http_referer', HTTP referer, or current page respectively.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @return string|bool False on failure. Referer URL on success.
|
|
*/
|
|
function wp_get_referer() {
|
|
$ref = '';
|
|
if ( ! empty( $_REQUEST['_wp_http_referer'] ) )
|
|
$ref = $_REQUEST['_wp_http_referer'];
|
|
else if ( ! empty( $_SERVER['HTTP_REFERER'] ) )
|
|
$ref = $_SERVER['HTTP_REFERER'];
|
|
|
|
if ( $ref !== $_SERVER['REQUEST_URI'] )
|
|
return $ref;
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve original referer that was posted, if it exists.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @return string|bool False if no original referer or original referer if set.
|
|
*/
|
|
function wp_get_original_referer() {
|
|
if ( !empty( $_REQUEST['_wp_original_http_referer'] ) )
|
|
return $_REQUEST['_wp_original_http_referer'];
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Recursive directory creation based on full path.
|
|
*
|
|
* Will attempt to set permissions on folders.
|
|
*
|
|
* @since 2.0.1
|
|
*
|
|
* @param string $target Full path to attempt to create.
|
|
* @return bool Whether the path was created. True if path already exists.
|
|
*/
|
|
function wp_mkdir_p( $target ) {
|
|
// from php.net/mkdir user contributed notes
|
|
$target = str_replace( '//', '/', $target );
|
|
|
|
// safe mode fails with a trailing slash under certain PHP versions.
|
|
$target = rtrim($target, '/'); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency.
|
|
if ( empty($target) )
|
|
$target = '/';
|
|
|
|
if ( file_exists( $target ) )
|
|
return @is_dir( $target );
|
|
|
|
// Attempting to create the directory may clutter up our display.
|
|
if ( @mkdir( $target ) ) {
|
|
$stat = @stat( dirname( $target ) );
|
|
$dir_perms = $stat['mode'] & 0007777; // Get the permission bits.
|
|
@chmod( $target, $dir_perms );
|
|
return true;
|
|
} elseif ( is_dir( dirname( $target ) ) ) {
|
|
return false;
|
|
}
|
|
|
|
// If the above failed, attempt to create the parent node, then try again.
|
|
if ( ( $target != '/' ) && ( wp_mkdir_p( dirname( $target ) ) ) )
|
|
return wp_mkdir_p( $target );
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows').
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $path File path
|
|
* @return bool True if path is absolute, false is not absolute.
|
|
*/
|
|
function path_is_absolute( $path ) {
|
|
// this is definitive if true but fails if $path does not exist or contains a symbolic link
|
|
if ( realpath($path) == $path )
|
|
return true;
|
|
|
|
if ( strlen($path) == 0 || $path{0} == '.' )
|
|
return false;
|
|
|
|
// windows allows absolute paths like this
|
|
if ( preg_match('#^[a-zA-Z]:\\\\#', $path) )
|
|
return true;
|
|
|
|
// a path starting with / or \ is absolute; anything else is relative
|
|
return (bool) preg_match('#^[/\\\\]#', $path);
|
|
}
|
|
|
|
/**
|
|
* Join two filesystem paths together (e.g. 'give me $path relative to $base').
|
|
*
|
|
* If the $path is absolute, then it the full path is returned.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $base
|
|
* @param string $path
|
|
* @return string The path with the base or absolute path.
|
|
*/
|
|
function path_join( $base, $path ) {
|
|
if ( path_is_absolute($path) )
|
|
return $path;
|
|
|
|
return rtrim($base, '/') . '/' . ltrim($path, '/');
|
|
}
|
|
|
|
/**
|
|
* Get an array containing the current upload directory's path and url.
|
|
*
|
|
* Checks the 'upload_path' option, which should be from the web root folder,
|
|
* and if it isn't empty it will be used. If it is empty, then the path will be
|
|
* 'WP_CONTENT_DIR/uploads'. If the 'UPLOADS' constant is defined, then it will
|
|
* override the 'upload_path' option and 'WP_CONTENT_DIR/uploads' path.
|
|
*
|
|
* The upload URL path is set either by the 'upload_url_path' option or by using
|
|
* the 'WP_CONTENT_URL' constant and appending '/uploads' to the path.
|
|
*
|
|
* If the 'uploads_use_yearmonth_folders' is set to true (checkbox if checked in
|
|
* the administration settings panel), then the time will be used. The format
|
|
* will be year first and then month.
|
|
*
|
|
* If the path couldn't be created, then an error will be returned with the key
|
|
* 'error' containing the error message. The error suggests that the parent
|
|
* directory is not writable by the server.
|
|
*
|
|
* On success, the returned array will have many indices:
|
|
* 'path' - base directory and sub directory or full path to upload directory.
|
|
* 'url' - base url and sub directory or absolute URL to upload directory.
|
|
* 'subdir' - sub directory if uploads use year/month folders option is on.
|
|
* 'basedir' - path without subdir.
|
|
* 'baseurl' - URL path without subdir.
|
|
* 'error' - set to false.
|
|
*
|
|
* @since 2.0.0
|
|
* @uses apply_filters() Calls 'upload_dir' on returned array.
|
|
*
|
|
* @param string $time Optional. Time formatted in 'yyyy/mm'.
|
|
* @return array See above for description.
|
|
*/
|
|
function wp_upload_dir( $time = null ) {
|
|
global $switched;
|
|
$siteurl = get_option( 'siteurl' );
|
|
$upload_path = get_option( 'upload_path' );
|
|
$upload_path = trim($upload_path);
|
|
$main_override = is_multisite() && defined( 'MULTISITE' ) && is_main_site();
|
|
if ( empty($upload_path) ) {
|
|
$dir = WP_CONTENT_DIR . '/uploads';
|
|
} else {
|
|
$dir = $upload_path;
|
|
if ( 'wp-content/uploads' == $upload_path ) {
|
|
$dir = WP_CONTENT_DIR . '/uploads';
|
|
} elseif ( 0 !== strpos($dir, ABSPATH) ) {
|
|
// $dir is absolute, $upload_path is (maybe) relative to ABSPATH
|
|
$dir = path_join( ABSPATH, $dir );
|
|
}
|
|
}
|
|
|
|
if ( !$url = get_option( 'upload_url_path' ) ) {
|
|
if ( empty($upload_path) || ( 'wp-content/uploads' == $upload_path ) || ( $upload_path == $dir ) )
|
|
$url = WP_CONTENT_URL . '/uploads';
|
|
else
|
|
$url = trailingslashit( $siteurl ) . $upload_path;
|
|
}
|
|
|
|
if ( defined('UPLOADS') && !$main_override && ( !isset( $switched ) || $switched === false ) ) {
|
|
$dir = ABSPATH . UPLOADS;
|
|
$url = trailingslashit( $siteurl ) . UPLOADS;
|
|
}
|
|
|
|
if ( is_multisite() && !$main_override && ( !isset( $switched ) || $switched === false ) ) {
|
|
if ( defined( 'BLOGUPLOADDIR' ) )
|
|
$dir = untrailingslashit(BLOGUPLOADDIR);
|
|
$url = str_replace( UPLOADS, 'files', $url );
|
|
}
|
|
|
|
$bdir = $dir;
|
|
$burl = $url;
|
|
|
|
$subdir = '';
|
|
if ( get_option( 'uploads_use_yearmonth_folders' ) ) {
|
|
// Generate the yearly and monthly dirs
|
|
if ( !$time )
|
|
$time = current_time( 'mysql' );
|
|
$y = substr( $time, 0, 4 );
|
|
$m = substr( $time, 5, 2 );
|
|
$subdir = "/$y/$m";
|
|
}
|
|
|
|
$dir .= $subdir;
|
|
$url .= $subdir;
|
|
|
|
$uploads = apply_filters( 'upload_dir', array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'basedir' => $bdir, 'baseurl' => $burl, 'error' => false ) );
|
|
|
|
// Make sure we have an uploads dir
|
|
if ( ! wp_mkdir_p( $uploads['path'] ) ) {
|
|
$message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $uploads['path'] );
|
|
return array( 'error' => $message );
|
|
}
|
|
|
|
return $uploads;
|
|
}
|
|
|
|
/**
|
|
* Get a filename that is sanitized and unique for the given directory.
|
|
*
|
|
* If the filename is not unique, then a number will be added to the filename
|
|
* before the extension, and will continue adding numbers until the filename is
|
|
* unique.
|
|
*
|
|
* The callback must accept two parameters, the first one is the directory and
|
|
* the second is the filename. The callback must be a function.
|
|
*
|
|
* @since 2.5
|
|
*
|
|
* @param string $dir
|
|
* @param string $filename
|
|
* @param string $unique_filename_callback Function name, must be a function.
|
|
* @return string New filename, if given wasn't unique.
|
|
*/
|
|
function wp_unique_filename( $dir, $filename, $unique_filename_callback = null ) {
|
|
// sanitize the file name before we begin processing
|
|
$filename = sanitize_file_name($filename);
|
|
|
|
// separate the filename into a name and extension
|
|
$info = pathinfo($filename);
|
|
$ext = !empty($info['extension']) ? '.' . $info['extension'] : '';
|
|
$name = basename($filename, $ext);
|
|
|
|
// edge case: if file is named '.ext', treat as an empty name
|
|
if ( $name === $ext )
|
|
$name = '';
|
|
|
|
// Increment the file number until we have a unique file to save in $dir. Use $override['unique_filename_callback'] if supplied.
|
|
if ( $unique_filename_callback && is_callable( $unique_filename_callback ) ) {
|
|
$filename = $unique_filename_callback( $dir, $name );
|
|
} else {
|
|
$number = '';
|
|
|
|
// change '.ext' to lower case
|
|
if ( $ext && strtolower($ext) != $ext ) {
|
|
$ext2 = strtolower($ext);
|
|
$filename2 = preg_replace( '|' . preg_quote($ext) . '$|', $ext2, $filename );
|
|
|
|
// check for both lower and upper case extension or image sub-sizes may be overwritten
|
|
while ( file_exists($dir . "/$filename") || file_exists($dir . "/$filename2") ) {
|
|
$new_number = $number + 1;
|
|
$filename = str_replace( "$number$ext", "$new_number$ext", $filename );
|
|
$filename2 = str_replace( "$number$ext2", "$new_number$ext2", $filename2 );
|
|
$number = $new_number;
|
|
}
|
|
return $filename2;
|
|
}
|
|
|
|
while ( file_exists( $dir . "/$filename" ) ) {
|
|
if ( '' == "$number$ext" )
|
|
$filename = $filename . ++$number . $ext;
|
|
else
|
|
$filename = str_replace( "$number$ext", ++$number . $ext, $filename );
|
|
}
|
|
}
|
|
|
|
return $filename;
|
|
}
|
|
|
|
/**
|
|
* Create a file in the upload folder with given content.
|
|
*
|
|
* If there is an error, then the key 'error' will exist with the error message.
|
|
* If success, then the key 'file' will have the unique file path, the 'url' key
|
|
* will have the link to the new file. and the 'error' key will be set to false.
|
|
*
|
|
* This function will not move an uploaded file to the upload folder. It will
|
|
* create a new file with the content in $bits parameter. If you move the upload
|
|
* file, read the content of the uploaded file, and then you can give the
|
|
* filename and content to this function, which will add it to the upload
|
|
* folder.
|
|
*
|
|
* The permissions will be set on the new file automatically by this function.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param string $name
|
|
* @param null $deprecated Never used. Set to null.
|
|
* @param mixed $bits File content
|
|
* @param string $time Optional. Time formatted in 'yyyy/mm'.
|
|
* @return array
|
|
*/
|
|
function wp_upload_bits( $name, $deprecated, $bits, $time = null ) {
|
|
if ( !empty( $deprecated ) )
|
|
_deprecated_argument( __FUNCTION__, '2.0' );
|
|
|
|
if ( empty( $name ) )
|
|
return array( 'error' => __( 'Empty filename' ) );
|
|
|
|
$wp_filetype = wp_check_filetype( $name );
|
|
if ( !$wp_filetype['ext'] )
|
|
return array( 'error' => __( 'Invalid file type' ) );
|
|
|
|
$upload = wp_upload_dir( $time );
|
|
|
|
if ( $upload['error'] !== false )
|
|
return $upload;
|
|
|
|
$upload_bits_error = apply_filters( 'wp_upload_bits', array( 'name' => $name, 'bits' => $bits, 'time' => $time ) );
|
|
if ( !is_array( $upload_bits_error ) ) {
|
|
$upload[ 'error' ] = $upload_bits_error;
|
|
return $upload;
|
|
}
|
|
|
|
$filename = wp_unique_filename( $upload['path'], $name );
|
|
|
|
$new_file = $upload['path'] . "/$filename";
|
|
if ( ! wp_mkdir_p( dirname( $new_file ) ) ) {
|
|
$message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), dirname( $new_file ) );
|
|
return array( 'error' => $message );
|
|
}
|
|
|
|
$ifp = @ fopen( $new_file, 'wb' );
|
|
if ( ! $ifp )
|
|
return array( 'error' => sprintf( __( 'Could not write file %s' ), $new_file ) );
|
|
|
|
@fwrite( $ifp, $bits );
|
|
fclose( $ifp );
|
|
clearstatcache();
|
|
|
|
// Set correct file permissions
|
|
$stat = @ stat( dirname( $new_file ) );
|
|
$perms = $stat['mode'] & 0007777;
|
|
$perms = $perms & 0000666;
|
|
@ chmod( $new_file, $perms );
|
|
clearstatcache();
|
|
|
|
// Compute the URL
|
|
$url = $upload['url'] . "/$filename";
|
|
|
|
return array( 'file' => $new_file, 'url' => $url, 'error' => false );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the file type based on the extension name.
|
|
*
|
|
* @package WordPress
|
|
* @since 2.5.0
|
|
* @uses apply_filters() Calls 'ext2type' hook on default supported types.
|
|
*
|
|
* @param string $ext The extension to search.
|
|
* @return string|null The file type, example: audio, video, document, spreadsheet, etc. Null if not found.
|
|
*/
|
|
function wp_ext2type( $ext ) {
|
|
$ext2type = apply_filters( 'ext2type', array(
|
|
'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
|
|
'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ),
|
|
'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ),
|
|
'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsb', 'xlsm' ),
|
|
'interactive' => array( 'key', 'ppt', 'pptx', 'pptm', 'odp', 'swf' ),
|
|
'text' => array( 'asc', 'csv', 'tsv', 'txt' ),
|
|
'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip' ),
|
|
'code' => array( 'css', 'htm', 'html', 'php', 'js' ),
|
|
));
|
|
foreach ( $ext2type as $type => $exts )
|
|
if ( in_array( $ext, $exts ) )
|
|
return $type;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the file type from the file name.
|
|
*
|
|
* You can optionally define the mime array, if needed.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $filename File name or path.
|
|
* @param array $mimes Optional. Key is the file extension with value as the mime type.
|
|
* @return array Values with extension first and mime type.
|
|
*/
|
|
function wp_check_filetype( $filename, $mimes = null ) {
|
|
if ( empty($mimes) )
|
|
$mimes = get_allowed_mime_types();
|
|
$type = false;
|
|
$ext = false;
|
|
|
|
foreach ( $mimes as $ext_preg => $mime_match ) {
|
|
$ext_preg = '!\.(' . $ext_preg . ')$!i';
|
|
if ( preg_match( $ext_preg, $filename, $ext_matches ) ) {
|
|
$type = $mime_match;
|
|
$ext = $ext_matches[1];
|
|
break;
|
|
}
|
|
}
|
|
|
|
return compact( 'ext', 'type' );
|
|
}
|
|
|
|
/**
|
|
* Attempt to determine the real file type of a file.
|
|
* If unable to, the file name extension will be used to determine type.
|
|
*
|
|
* If it's determined that the extension does not match the file's real type,
|
|
* then the "proper_filename" value will be set with a proper filename and extension.
|
|
*
|
|
* Currently this function only supports validating images known to getimagesize().
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $file Full path to the image.
|
|
* @param string $filename The filename of the image (may differ from $file due to $file being in a tmp directory)
|
|
* @param array $mimes Optional. Key is the file extension with value as the mime type.
|
|
* @return array Values for the extension, MIME, and either a corrected filename or false if original $filename is valid
|
|
*/
|
|
function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
|
|
|
|
$proper_filename = false;
|
|
|
|
// Do basic extension validation and MIME mapping
|
|
$wp_filetype = wp_check_filetype( $filename, $mimes );
|
|
extract( $wp_filetype );
|
|
|
|
// We can't do any further validation without a file to work with
|
|
if ( ! file_exists( $file ) )
|
|
return compact( 'ext', 'type', 'proper_filename' );
|
|
|
|
// We're able to validate images using GD
|
|
if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) {
|
|
|
|
// Attempt to figure out what type of image it actually is
|
|
$imgstats = @getimagesize( $file );
|
|
|
|
// If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME
|
|
if ( !empty($imgstats['mime']) && $imgstats['mime'] != $type ) {
|
|
// This is a simplified array of MIMEs that getimagesize() can detect and their extensions
|
|
// You shouldn't need to use this filter, but it's here just in case
|
|
$mime_to_ext = apply_filters( 'getimagesize_mimes_to_exts', array(
|
|
'image/jpeg' => 'jpg',
|
|
'image/png' => 'png',
|
|
'image/gif' => 'gif',
|
|
'image/bmp' => 'bmp',
|
|
'image/tiff' => 'tif',
|
|
) );
|
|
|
|
// Replace whatever is after the last period in the filename with the correct extension
|
|
if ( ! empty( $mime_to_ext[ $imgstats['mime'] ] ) ) {
|
|
$filename_parts = explode( '.', $filename );
|
|
array_pop( $filename_parts );
|
|
$filename_parts[] = $mime_to_ext[ $imgstats['mime'] ];
|
|
$new_filename = implode( '.', $filename_parts );
|
|
|
|
if ( $new_filename != $filename )
|
|
$proper_filename = $new_filename; // Mark that it changed
|
|
|
|
// Redefine the extension / MIME
|
|
$wp_filetype = wp_check_filetype( $new_filename, $mimes );
|
|
extract( $wp_filetype );
|
|
}
|
|
}
|
|
}
|
|
|
|
// Let plugins try and validate other types of files
|
|
// Should return an array in the style of array( 'ext' => $ext, 'type' => $type, 'proper_filename' => $proper_filename )
|
|
return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes );
|
|
}
|
|
|
|
/**
|
|
* Retrieve list of allowed mime types and file extensions.
|
|
*
|
|
* @since 2.8.6
|
|
*
|
|
* @return array Array of mime types keyed by the file extension regex corresponding to those types.
|
|
*/
|
|
function get_allowed_mime_types() {
|
|
static $mimes = false;
|
|
|
|
if ( !$mimes ) {
|
|
// Accepted MIME types are set here as PCRE unless provided.
|
|
$mimes = apply_filters( 'upload_mimes', array(
|
|
'jpg|jpeg|jpe' => 'image/jpeg',
|
|
'gif' => 'image/gif',
|
|
'png' => 'image/png',
|
|
'bmp' => 'image/bmp',
|
|
'tif|tiff' => 'image/tiff',
|
|
'ico' => 'image/x-icon',
|
|
'asf|asx|wax|wmv|wmx' => 'video/asf',
|
|
'avi' => 'video/avi',
|
|
'divx' => 'video/divx',
|
|
'flv' => 'video/x-flv',
|
|
'mov|qt' => 'video/quicktime',
|
|
'mpeg|mpg|mpe' => 'video/mpeg',
|
|
'txt|asc|c|cc|h' => 'text/plain',
|
|
'csv' => 'text/csv',
|
|
'tsv' => 'text/tab-separated-values',
|
|
'rtx' => 'text/richtext',
|
|
'css' => 'text/css',
|
|
'htm|html' => 'text/html',
|
|
'mp3|m4a|m4b' => 'audio/mpeg',
|
|
'mp4|m4v' => 'video/mp4',
|
|
'ra|ram' => 'audio/x-realaudio',
|
|
'wav' => 'audio/wav',
|
|
'ogg|oga' => 'audio/ogg',
|
|
'ogv' => 'video/ogg',
|
|
'mid|midi' => 'audio/midi',
|
|
'wma' => 'audio/wma',
|
|
'mka' => 'audio/x-matroska',
|
|
'mkv' => 'video/x-matroska',
|
|
'rtf' => 'application/rtf',
|
|
'js' => 'application/javascript',
|
|
'pdf' => 'application/pdf',
|
|
'doc|docx' => 'application/msword',
|
|
'pot|pps|ppt|pptx|ppam|pptm|sldm|ppsm|potm' => 'application/vnd.ms-powerpoint',
|
|
'wri' => 'application/vnd.ms-write',
|
|
'xla|xls|xlsx|xlt|xlw|xlam|xlsb|xlsm|xltm' => 'application/vnd.ms-excel',
|
|
'mdb' => 'application/vnd.ms-access',
|
|
'mpp' => 'application/vnd.ms-project',
|
|
'docm|dotm' => 'application/vnd.ms-word',
|
|
'pptx|sldx|ppsx|potx' => 'application/vnd.openxmlformats-officedocument.presentationml',
|
|
'xlsx|xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml',
|
|
'docx|dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml',
|
|
'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote',
|
|
'swf' => 'application/x-shockwave-flash',
|
|
'class' => 'application/java',
|
|
'tar' => 'application/x-tar',
|
|
'zip' => 'application/zip',
|
|
'gz|gzip' => 'application/x-gzip',
|
|
'exe' => 'application/x-msdownload',
|
|
// openoffice formats
|
|
'odt' => 'application/vnd.oasis.opendocument.text',
|
|
'odp' => 'application/vnd.oasis.opendocument.presentation',
|
|
'ods' => 'application/vnd.oasis.opendocument.spreadsheet',
|
|
'odg' => 'application/vnd.oasis.opendocument.graphics',
|
|
'odc' => 'application/vnd.oasis.opendocument.chart',
|
|
'odb' => 'application/vnd.oasis.opendocument.database',
|
|
'odf' => 'application/vnd.oasis.opendocument.formula',
|
|
// wordperfect formats
|
|
'wp|wpd' => 'application/wordperfect',
|
|
) );
|
|
}
|
|
|
|
return $mimes;
|
|
}
|
|
|
|
/**
|
|
* Retrieve nonce action "Are you sure" message.
|
|
*
|
|
* The action is split by verb and noun. The action format is as follows:
|
|
* verb-action_extra. The verb is before the first dash and has the format of
|
|
* letters and no spaces and numbers. The noun is after the dash and before the
|
|
* underscore, if an underscore exists. The noun is also only letters.
|
|
*
|
|
* The filter will be called for any action, which is not defined by WordPress.
|
|
* You may use the filter for your plugin to explain nonce actions to the user,
|
|
* when they get the "Are you sure?" message. The filter is in the format of
|
|
* 'explain_nonce_$verb-$noun' with the $verb replaced by the found verb and the
|
|
* $noun replaced by the found noun. The two parameters that are given to the
|
|
* hook are the localized "Are you sure you want to do this?" message with the
|
|
* extra text (the text after the underscore).
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $action Nonce action.
|
|
* @return string Are you sure message.
|
|
*/
|
|
function wp_explain_nonce( $action ) {
|
|
if ( $action !== -1 && preg_match( '/([a-z]+)-([a-z]+)(_(.+))?/', $action, $matches ) ) {
|
|
$verb = $matches[1];
|
|
$noun = $matches[2];
|
|
|
|
$trans = array();
|
|
$trans['update']['attachment'] = array( __( 'Your attempt to edit this attachment: “%s” has failed.' ), 'get_the_title' );
|
|
|
|
$trans['add']['category'] = array( __( 'Your attempt to add this category has failed.' ), false );
|
|
$trans['delete']['category'] = array( __( 'Your attempt to delete this category: “%s” has failed.' ), 'get_cat_name' );
|
|
$trans['update']['category'] = array( __( 'Your attempt to edit this category: “%s” has failed.' ), 'get_cat_name' );
|
|
|
|
$trans['delete']['comment'] = array( __( 'Your attempt to delete this comment: “%s” has failed.' ), 'use_id' );
|
|
$trans['unapprove']['comment'] = array( __( 'Your attempt to unapprove this comment: “%s” has failed.' ), 'use_id' );
|
|
$trans['approve']['comment'] = array( __( 'Your attempt to approve this comment: “%s” has failed.' ), 'use_id' );
|
|
$trans['update']['comment'] = array( __( 'Your attempt to edit this comment: “%s” has failed.' ), 'use_id' );
|
|
$trans['bulk']['comments'] = array( __( 'Your attempt to bulk modify comments has failed.' ), false );
|
|
$trans['moderate']['comments'] = array( __( 'Your attempt to moderate comments has failed.' ), false );
|
|
|
|
$trans['add']['bookmark'] = array( __( 'Your attempt to add this link has failed.' ), false );
|
|
$trans['delete']['bookmark'] = array( __( 'Your attempt to delete this link: “%s” has failed.' ), 'use_id' );
|
|
$trans['update']['bookmark'] = array( __( 'Your attempt to edit this link: “%s” has failed.' ), 'use_id' );
|
|
$trans['bulk']['bookmarks'] = array( __( 'Your attempt to bulk modify links has failed.' ), false );
|
|
|
|
$trans['add']['page'] = array( __( 'Your attempt to add this page has failed.' ), false );
|
|
$trans['delete']['page'] = array( __( 'Your attempt to delete this page: “%s” has failed.' ), 'get_the_title' );
|
|
$trans['update']['page'] = array( __( 'Your attempt to edit this page: “%s” has failed.' ), 'get_the_title' );
|
|
|
|
$trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: “%s” has failed.' ), 'use_id' );
|
|
$trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: “%s” has failed.' ), 'use_id' );
|
|
$trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: “%s” has failed.' ), 'use_id' );
|
|
$trans['upgrade']['plugin'] = array( __( 'Your attempt to upgrade this plugin: “%s” has failed.' ), 'use_id' );
|
|
|
|
$trans['add']['post'] = array( __( 'Your attempt to add this post has failed.' ), false );
|
|
$trans['delete']['post'] = array( __( 'Your attempt to delete this post: “%s” has failed.' ), 'get_the_title' );
|
|
$trans['update']['post'] = array( __( 'Your attempt to edit this post: “%s” has failed.' ), 'get_the_title' );
|
|
|
|
$trans['add']['user'] = array( __( 'Your attempt to add this user has failed.' ), false );
|
|
$trans['delete']['users'] = array( __( 'Your attempt to delete users has failed.' ), false );
|
|
$trans['bulk']['users'] = array( __( 'Your attempt to bulk modify users has failed.' ), false );
|
|
$trans['update']['user'] = array( __( 'Your attempt to edit this user: “%s” has failed.' ), 'get_the_author_meta', 'display_name' );
|
|
$trans['update']['profile'] = array( __( 'Your attempt to modify the profile for: “%s” has failed.' ), 'get_the_author_meta', 'display_name' );
|
|
|
|
$trans['update']['options'] = array( __( 'Your attempt to edit your settings has failed.' ), false );
|
|
$trans['update']['permalink'] = array( __( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' );
|
|
$trans['edit']['file'] = array( __( 'Your attempt to edit this file: “%s” has failed.' ), 'use_id' );
|
|
$trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: “%s” has failed.' ), 'use_id' );
|
|
$trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: “%s” has failed.' ), 'use_id' );
|
|
|
|
$trans['log']['out'] = array( sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'sitename' ) ), false );
|
|
|
|
if ( isset( $trans[$verb][$noun] ) ) {
|
|
if ( !empty( $trans[$verb][$noun][1] ) ) {
|
|
$lookup = $trans[$verb][$noun][1];
|
|
if ( isset($trans[$verb][$noun][2]) )
|
|
$lookup_value = $trans[$verb][$noun][2];
|
|
$object = $matches[4];
|
|
if ( 'use_id' != $lookup ) {
|
|
if ( isset( $lookup_value ) )
|
|
$object = call_user_func( $lookup, $lookup_value, $object );
|
|
else
|
|
$object = call_user_func( $lookup, $object );
|
|
}
|
|
return sprintf( $trans[$verb][$noun][0], esc_html($object) );
|
|
} else {
|
|
return $trans[$verb][$noun][0];
|
|
}
|
|
}
|
|
|
|
return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), isset($matches[4]) ? $matches[4] : '' );
|
|
} else {
|
|
return apply_filters( 'explain_nonce_' . $action, __( 'Are you sure you want to do this?' ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Display "Are You Sure" message to confirm the action being taken.
|
|
*
|
|
* If the action has the nonce explain message, then it will be displayed along
|
|
* with the "Are you sure?" message.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Security
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $action The nonce action.
|
|
*/
|
|
function wp_nonce_ays( $action ) {
|
|
$title = __( 'WordPress Failure Notice' );
|
|
$html = esc_html( wp_explain_nonce( $action ) );
|
|
if ( 'log-out' == $action )
|
|
$html .= "</p><p>" . sprintf( __( "Do you really want to <a href='%s'>log out</a>?"), wp_logout_url() );
|
|
elseif ( wp_get_referer() )
|
|
$html .= "</p><p><a href='" . esc_url( remove_query_arg( 'updated', wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>";
|
|
|
|
wp_die( $html, $title, array('response' => 403) );
|
|
}
|
|
|
|
|
|
/**
|
|
* Kill WordPress execution and display HTML message with error message.
|
|
*
|
|
* This function complements the die() PHP function. The difference is that
|
|
* HTML will be displayed to the user. It is recommended to use this function
|
|
* only, when the execution should not continue any further. It is not
|
|
* recommended to call this function very often and try to handle as many errors
|
|
* as possible siliently.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $message Error message.
|
|
* @param string $title Error title.
|
|
* @param string|array $args Optional arguements to control behaviour.
|
|
*/
|
|
function wp_die( $message, $title = '', $args = array() ) {
|
|
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
|
|
die('-1');
|
|
|
|
if ( function_exists( 'apply_filters' ) ) {
|
|
$function = apply_filters( 'wp_die_handler', '_default_wp_die_handler');
|
|
} else {
|
|
$function = '_default_wp_die_handler';
|
|
}
|
|
|
|
call_user_func( $function, $message, $title, $args );
|
|
}
|
|
|
|
/**
|
|
* Kill WordPress execution and display HTML message with error message.
|
|
*
|
|
* This is the default handler for wp_die if you want a custom one for your
|
|
* site then you can overload using the wp_die_handler filter in wp_die
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @param string $message Error message.
|
|
* @param string $title Error title.
|
|
* @param string|array $args Optional arguements to control behaviour.
|
|
*/
|
|
function _default_wp_die_handler( $message, $title = '', $args = array() ) {
|
|
$defaults = array( 'response' => 500 );
|
|
$r = wp_parse_args($args, $defaults);
|
|
|
|
$have_gettext = function_exists('__');
|
|
|
|
if ( function_exists( 'is_wp_error' ) && is_wp_error( $message ) ) {
|
|
if ( empty( $title ) ) {
|
|
$error_data = $message->get_error_data();
|
|
if ( is_array( $error_data ) && isset( $error_data['title'] ) )
|
|
$title = $error_data['title'];
|
|
}
|
|
$errors = $message->get_error_messages();
|
|
switch ( count( $errors ) ) :
|
|
case 0 :
|
|
$message = '';
|
|
break;
|
|
case 1 :
|
|
$message = "<p>{$errors[0]}</p>";
|
|
break;
|
|
default :
|
|
$message = "<ul>\n\t\t<li>" . join( "</li>\n\t\t<li>", $errors ) . "</li>\n\t</ul>";
|
|
break;
|
|
endswitch;
|
|
} elseif ( is_string( $message ) ) {
|
|
$message = "<p>$message</p>";
|
|
}
|
|
|
|
if ( isset( $r['back_link'] ) && $r['back_link'] ) {
|
|
$back_text = $have_gettext? __('« Back') : '« Back';
|
|
$message .= "\n<p><a href='javascript:history.back()'>$back_text</p>";
|
|
}
|
|
|
|
if ( defined( 'WP_SITEURL' ) && '' != WP_SITEURL )
|
|
$admin_dir = WP_SITEURL . '/wp-admin/';
|
|
elseif ( function_exists( 'get_bloginfo' ) && '' != get_bloginfo( 'wpurl' ) )
|
|
$admin_dir = get_bloginfo( 'wpurl' ) . '/wp-admin/';
|
|
elseif ( strpos( $_SERVER['PHP_SELF'], 'wp-admin' ) !== false )
|
|
$admin_dir = '';
|
|
else
|
|
$admin_dir = 'wp-admin/';
|
|
|
|
if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) :
|
|
if ( !headers_sent() ) {
|
|
status_header( $r['response'] );
|
|
nocache_headers();
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
}
|
|
|
|
if ( empty($title) )
|
|
$title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error';
|
|
|
|
$text_direction = 'ltr';
|
|
if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] )
|
|
$text_direction = 'rtl';
|
|
elseif ( function_exists( 'is_rtl' ) && is_rtl() )
|
|
$text_direction = 'rtl';
|
|
?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono -->
|
|
<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) ) language_attributes(); ?>>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title><?php echo $title ?></title>
|
|
<link rel="stylesheet" href="<?php echo $admin_dir; ?>css/install.css" type="text/css" />
|
|
<?php
|
|
if ( 'rtl' == $text_direction ) : ?>
|
|
<link rel="stylesheet" href="<?php echo $admin_dir; ?>css/install-rtl.css" type="text/css" />
|
|
<?php endif; ?>
|
|
</head>
|
|
<body id="error-page">
|
|
<?php endif; ?>
|
|
<?php echo $message; ?>
|
|
</body>
|
|
</html>
|
|
<?php
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Retrieve the WordPress home page URL.
|
|
*
|
|
* If the constant named 'WP_HOME' exists, then it willl be used and returned by
|
|
* the function. This can be used to counter the redirection on your local
|
|
* development environment.
|
|
*
|
|
* @access private
|
|
* @package WordPress
|
|
* @since 2.2.0
|
|
*
|
|
* @param string $url URL for the home location
|
|
* @return string Homepage location.
|
|
*/
|
|
function _config_wp_home( $url = '' ) {
|
|
if ( defined( 'WP_HOME' ) )
|
|
return WP_HOME;
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the WordPress site URL.
|
|
*
|
|
* If the constant named 'WP_SITEURL' is defined, then the value in that
|
|
* constant will always be returned. This can be used for debugging a site on
|
|
* your localhost while not having to change the database to your URL.
|
|
*
|
|
* @access private
|
|
* @package WordPress
|
|
* @since 2.2.0
|
|
*
|
|
* @param string $url URL to set the WordPress site location.
|
|
* @return string The WordPress Site URL
|
|
*/
|
|
function _config_wp_siteurl( $url = '' ) {
|
|
if ( defined( 'WP_SITEURL' ) )
|
|
return WP_SITEURL;
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* Set the localized direction for MCE plugin.
|
|
*
|
|
* Will only set the direction to 'rtl', if the WordPress locale has the text
|
|
* direction set to 'rtl'.
|
|
*
|
|
* Fills in the 'directionality', 'plugins', and 'theme_advanced_button1' array
|
|
* keys. These keys are then returned in the $input array.
|
|
*
|
|
* @access private
|
|
* @package WordPress
|
|
* @subpackage MCE
|
|
* @since 2.1.0
|
|
*
|
|
* @param array $input MCE plugin array.
|
|
* @return array Direction set for 'rtl', if needed by locale.
|
|
*/
|
|
function _mce_set_direction( $input ) {
|
|
if ( is_rtl() ) {
|
|
$input['directionality'] = 'rtl';
|
|
$input['plugins'] .= ',directionality';
|
|
$input['theme_advanced_buttons1'] .= ',ltr';
|
|
}
|
|
|
|
return $input;
|
|
}
|
|
|
|
|
|
/**
|
|
* Convert smiley code to the icon graphic file equivalent.
|
|
*
|
|
* You can turn off smilies, by going to the write setting screen and unchecking
|
|
* the box, or by setting 'use_smilies' option to false or removing the option.
|
|
*
|
|
* Plugins may override the default smiley list by setting the $wpsmiliestrans
|
|
* to an array, with the key the code the blogger types in and the value the
|
|
* image file.
|
|
*
|
|
* The $wp_smiliessearch global is for the regular expression and is set each
|
|
* time the function is called.
|
|
*
|
|
* The full list of smilies can be found in the function and won't be listed in
|
|
* the description. Probably should create a Codex page for it, so that it is
|
|
* available.
|
|
*
|
|
* @global array $wpsmiliestrans
|
|
* @global array $wp_smiliessearch
|
|
* @since 2.2.0
|
|
*/
|
|
function smilies_init() {
|
|
global $wpsmiliestrans, $wp_smiliessearch;
|
|
|
|
// don't bother setting up smilies if they are disabled
|
|
if ( !get_option( 'use_smilies' ) )
|
|
return;
|
|
|
|
if ( !isset( $wpsmiliestrans ) ) {
|
|
$wpsmiliestrans = array(
|
|
':mrgreen:' => 'icon_mrgreen.gif',
|
|
':neutral:' => 'icon_neutral.gif',
|
|
':twisted:' => 'icon_twisted.gif',
|
|
':arrow:' => 'icon_arrow.gif',
|
|
':shock:' => 'icon_eek.gif',
|
|
':smile:' => 'icon_smile.gif',
|
|
':???:' => 'icon_confused.gif',
|
|
':cool:' => 'icon_cool.gif',
|
|
':evil:' => 'icon_evil.gif',
|
|
':grin:' => 'icon_biggrin.gif',
|
|
':idea:' => 'icon_idea.gif',
|
|
':oops:' => 'icon_redface.gif',
|
|
':razz:' => 'icon_razz.gif',
|
|
':roll:' => 'icon_rolleyes.gif',
|
|
':wink:' => 'icon_wink.gif',
|
|
':cry:' => 'icon_cry.gif',
|
|
':eek:' => 'icon_surprised.gif',
|
|
':lol:' => 'icon_lol.gif',
|
|
':mad:' => 'icon_mad.gif',
|
|
':sad:' => 'icon_sad.gif',
|
|
'8-)' => 'icon_cool.gif',
|
|
'8-O' => 'icon_eek.gif',
|
|
':-(' => 'icon_sad.gif',
|
|
':-)' => 'icon_smile.gif',
|
|
':-?' => 'icon_confused.gif',
|
|
':-D' => 'icon_biggrin.gif',
|
|
':-P' => 'icon_razz.gif',
|
|
':-o' => 'icon_surprised.gif',
|
|
':-x' => 'icon_mad.gif',
|
|
':-|' => 'icon_neutral.gif',
|
|
';-)' => 'icon_wink.gif',
|
|
'8)' => 'icon_cool.gif',
|
|
'8O' => 'icon_eek.gif',
|
|
':(' => 'icon_sad.gif',
|
|
':)' => 'icon_smile.gif',
|
|
':?' => 'icon_confused.gif',
|
|
':D' => 'icon_biggrin.gif',
|
|
':P' => 'icon_razz.gif',
|
|
':o' => 'icon_surprised.gif',
|
|
':x' => 'icon_mad.gif',
|
|
':|' => 'icon_neutral.gif',
|
|
';)' => 'icon_wink.gif',
|
|
':!:' => 'icon_exclaim.gif',
|
|
':?:' => 'icon_question.gif',
|
|
);
|
|
}
|
|
|
|
if (count($wpsmiliestrans) == 0) {
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* NOTE: we sort the smilies in reverse key order. This is to make sure
|
|
* we match the longest possible smilie (:???: vs :?) as the regular
|
|
* expression used below is first-match
|
|
*/
|
|
krsort($wpsmiliestrans);
|
|
|
|
$wp_smiliessearch = '/(?:\s|^)';
|
|
|
|
$subchar = '';
|
|
foreach ( (array) $wpsmiliestrans as $smiley => $img ) {
|
|
$firstchar = substr($smiley, 0, 1);
|
|
$rest = substr($smiley, 1);
|
|
|
|
// new subpattern?
|
|
if ($firstchar != $subchar) {
|
|
if ($subchar != '') {
|
|
$wp_smiliessearch .= ')|(?:\s|^)';
|
|
}
|
|
$subchar = $firstchar;
|
|
$wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:';
|
|
} else {
|
|
$wp_smiliessearch .= '|';
|
|
}
|
|
$wp_smiliessearch .= preg_quote($rest, '/');
|
|
}
|
|
|
|
$wp_smiliessearch .= ')(?:\s|$)/m';
|
|
}
|
|
|
|
/**
|
|
* Merge user defined arguments into defaults array.
|
|
*
|
|
* This function is used throughout WordPress to allow for both string or array
|
|
* to be merged into another array.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @param string|array $args Value to merge with $defaults
|
|
* @param array $defaults Array that serves as the defaults.
|
|
* @return array Merged user defined values with defaults.
|
|
*/
|
|
function wp_parse_args( $args, $defaults = '' ) {
|
|
if ( is_object( $args ) )
|
|
$r = get_object_vars( $args );
|
|
elseif ( is_array( $args ) )
|
|
$r =& $args;
|
|
else
|
|
wp_parse_str( $args, $r );
|
|
|
|
if ( is_array( $defaults ) )
|
|
return array_merge( $defaults, $r );
|
|
return $r;
|
|
}
|
|
|
|
/**
|
|
* Clean up an array, comma- or space-separated list of IDs
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array|string $list
|
|
* @return array Sanitized array of IDs
|
|
*/
|
|
function wp_parse_id_list( $list ) {
|
|
if ( !is_array($list) )
|
|
$list = preg_split('/[\s,]+/', $list);
|
|
|
|
return array_unique(array_map('absint', $list));
|
|
}
|
|
|
|
/**
|
|
* Extract a slice of an array, given a list of keys
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $array The original array
|
|
* @param array $keys The list of keys
|
|
* @return array The array slice
|
|
*/
|
|
function wp_array_slice_assoc( $array, $keys ) {
|
|
$slice = array();
|
|
foreach ( $keys as $key )
|
|
if ( isset( $array[ $key ] ) )
|
|
$slice[ $key ] = $array[ $key ];
|
|
|
|
return $slice;
|
|
}
|
|
|
|
/**
|
|
* Filters a list of objects, based on a set of key => value arguments
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $list An array of objects to filter
|
|
* @param array $args An array of key => value arguments to match against each object
|
|
* @param string $operator The logical operation to perform. 'or' means only one element
|
|
* from the array needs to match; 'and' means all elements must match. The default is 'and'.
|
|
* @param bool|string $field A field from the object to place instead of the entire object
|
|
* @return array A list of objects or object fields
|
|
*/
|
|
function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) {
|
|
$list = wp_list_filter( $list, $args, $operator );
|
|
|
|
if ( $field )
|
|
$list = wp_list_pluck( $list, $field );
|
|
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Filters a list of objects, based on a set of key => value arguments
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $list An array of objects to filter
|
|
* @param array $args An array of key => value arguments to match against each object
|
|
* @param string $operator The logical operation to perform. 'or' means only one element
|
|
* from the array needs to match; 'and' means all elements must match. The default is 'and'.
|
|
* @return array
|
|
*/
|
|
function wp_list_filter( $list, $args = array(), $operator = 'and' ) {
|
|
if ( empty( $args ) )
|
|
return $list;
|
|
|
|
$count = count( $args );
|
|
|
|
$filtered = array();
|
|
|
|
foreach ( $list as $key => $obj ) {
|
|
$matched = count( array_intersect_assoc( (array) $obj, $args ) );
|
|
if ( ('and' == $operator && $matched == $count) || ('or' == $operator && $matched <= $count) ) {
|
|
$filtered[$key] = $obj;
|
|
}
|
|
}
|
|
|
|
return $filtered;
|
|
}
|
|
|
|
/**
|
|
* Pluck a certain field out of each object in a list
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param array $list A list of objects or arrays
|
|
* @param int|string $field A field from the object to place instead of the entire object
|
|
* @return array
|
|
*/
|
|
function wp_list_pluck( $list, $field ) {
|
|
foreach ( $list as $key => $value ) {
|
|
$value = (array) $value;
|
|
$list[ $key ] = $value[ $field ];
|
|
}
|
|
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Determines if default embed handlers should be loaded.
|
|
*
|
|
* Checks to make sure that the embeds library hasn't already been loaded. If
|
|
* it hasn't, then it will load the embeds library.
|
|
*
|
|
* @since 2.9.0
|
|
*/
|
|
function wp_maybe_load_embeds() {
|
|
if ( ! apply_filters('load_default_embeds', true) )
|
|
return;
|
|
require_once( ABSPATH . WPINC . '/default-embeds.php' );
|
|
}
|
|
|
|
/**
|
|
* Determines if Widgets library should be loaded.
|
|
*
|
|
* Checks to make sure that the widgets library hasn't already been loaded. If
|
|
* it hasn't, then it will load the widgets library and run an action hook.
|
|
*
|
|
* @since 2.2.0
|
|
* @uses add_action() Calls '_admin_menu' hook with 'wp_widgets_add_menu' value.
|
|
*/
|
|
function wp_maybe_load_widgets() {
|
|
if ( ! apply_filters('load_default_widgets', true) )
|
|
return;
|
|
require_once( ABSPATH . WPINC . '/default-widgets.php' );
|
|
add_action( '_admin_menu', 'wp_widgets_add_menu' );
|
|
}
|
|
|
|
/**
|
|
* Append the Widgets menu to the themes main menu.
|
|
*
|
|
* @since 2.2.0
|
|
* @uses $submenu The administration submenu list.
|
|
*/
|
|
function wp_widgets_add_menu() {
|
|
global $submenu;
|
|
$submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' );
|
|
ksort( $submenu['themes.php'], SORT_NUMERIC );
|
|
}
|
|
|
|
/**
|
|
* Flush all output buffers for PHP 5.2.
|
|
*
|
|
* Make sure all output buffers are flushed before our singletons our destroyed.
|
|
*
|
|
* @since 2.2.0
|
|
*/
|
|
function wp_ob_end_flush_all() {
|
|
$levels = ob_get_level();
|
|
for ($i=0; $i<$levels; $i++)
|
|
ob_end_flush();
|
|
}
|
|
|
|
/**
|
|
* Load custom DB error or display WordPress DB error.
|
|
*
|
|
* If a file exists in the wp-content directory named db-error.php, then it will
|
|
* be loaded instead of displaying the WordPress DB error. If it is not found,
|
|
* then the WordPress DB error will be displayed instead.
|
|
*
|
|
* The WordPress DB error sets the HTTP status header to 500 to try to prevent
|
|
* search engines from caching the message. Custom DB messages should do the
|
|
* same.
|
|
*
|
|
* This function was backported to the the WordPress 2.3.2, but originally was
|
|
* added in WordPress 2.5.0.
|
|
*
|
|
* @since 2.3.2
|
|
* @uses $wpdb
|
|
*/
|
|
function dead_db() {
|
|
global $wpdb;
|
|
|
|
// Load custom DB error template, if present.
|
|
if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) {
|
|
require_once( WP_CONTENT_DIR . '/db-error.php' );
|
|
die();
|
|
}
|
|
|
|
// If installing or in the admin, provide the verbose message.
|
|
if ( defined('WP_INSTALLING') || defined('WP_ADMIN') )
|
|
wp_die($wpdb->error);
|
|
|
|
// Otherwise, be terse.
|
|
status_header( 500 );
|
|
nocache_headers();
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) ) language_attributes(); ?>>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title>Database Error</title>
|
|
|
|
</head>
|
|
<body>
|
|
<h1>Error establishing a database connection</h1>
|
|
</body>
|
|
</html>
|
|
<?php
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Converts value to nonnegative integer.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param mixed $maybeint Data you wish to have convered to an nonnegative integer
|
|
* @return int An nonnegative integer
|
|
*/
|
|
function absint( $maybeint ) {
|
|
return abs( intval( $maybeint ) );
|
|
}
|
|
|
|
/**
|
|
* Determines if the blog can be accessed over SSL.
|
|
*
|
|
* Determines if blog can be accessed over SSL by using cURL to access the site
|
|
* using the https in the siteurl. Requires cURL extension to work correctly.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $url
|
|
* @return bool Whether SSL access is available
|
|
*/
|
|
function url_is_accessable_via_ssl($url)
|
|
{
|
|
if (in_array('curl', get_loaded_extensions())) {
|
|
$ssl = preg_replace( '/^http:\/\//', 'https://', $url );
|
|
|
|
$ch = curl_init();
|
|
curl_setopt($ch, CURLOPT_URL, $ssl);
|
|
curl_setopt($ch, CURLOPT_FAILONERROR, true);
|
|
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
|
|
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
|
|
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
|
|
|
|
curl_exec($ch);
|
|
|
|
$status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
|
|
curl_close ($ch);
|
|
|
|
if ($status == 200 || $status == 401) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Secure URL, if available or the given URL.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $url Complete URL path with transport.
|
|
* @return string Secure or regular URL path.
|
|
*/
|
|
function atom_service_url_filter($url)
|
|
{
|
|
if ( url_is_accessable_via_ssl($url) )
|
|
return preg_replace( '/^http:\/\//', 'https://', $url );
|
|
else
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* Marks a function as deprecated and informs when it has been used.
|
|
*
|
|
* There is a hook deprecated_function_run that will be called that can be used
|
|
* to get the backtrace up to what file and function called the deprecated
|
|
* function.
|
|
*
|
|
* The current behavior is to trigger an user error if WP_DEBUG is true.
|
|
*
|
|
* This function is to be used in every function in depreceated.php
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 2.5.0
|
|
* @access private
|
|
*
|
|
* @uses do_action() Calls 'deprecated_function_run' and passes the function name, what to use instead,
|
|
* and the version the function was deprecated in.
|
|
* @uses apply_filters() Calls 'deprecated_function_trigger_error' and expects boolean value of true to do
|
|
* trigger or false to not trigger error.
|
|
*
|
|
* @param string $function The function that was called
|
|
* @param string $version The version of WordPress that deprecated the function
|
|
* @param string $replacement Optional. The function that should have been called
|
|
*/
|
|
function _deprecated_function( $function, $version, $replacement=null ) {
|
|
|
|
do_action( 'deprecated_function_run', $function, $replacement, $version );
|
|
|
|
// Allow plugin to filter the output error trigger
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_function_trigger_error', true ) ) {
|
|
if ( ! is_null($replacement) )
|
|
trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) );
|
|
else
|
|
trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks a file as deprecated and informs when it has been used.
|
|
*
|
|
* There is a hook deprecated_file_included that will be called that can be used
|
|
* to get the backtrace up to what file and function included the deprecated
|
|
* file.
|
|
*
|
|
* The current behavior is to trigger an user error if WP_DEBUG is true.
|
|
*
|
|
* This function is to be used in every file that is depreceated
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 2.5.0
|
|
* @access private
|
|
*
|
|
* @uses do_action() Calls 'deprecated_file_included' and passes the file name, what to use instead,
|
|
* the version in which the file was deprecated, and any message regarding the change.
|
|
* @uses apply_filters() Calls 'deprecated_file_trigger_error' and expects boolean value of true to do
|
|
* trigger or false to not trigger error.
|
|
*
|
|
* @param string $file The file that was included
|
|
* @param string $version The version of WordPress that deprecated the file
|
|
* @param string $replacement Optional. The file that should have been included based on ABSPATH
|
|
* @param string $message Optional. A message regarding the change
|
|
*/
|
|
function _deprecated_file( $file, $version, $replacement = null, $message = '' ) {
|
|
|
|
do_action( 'deprecated_file_included', $file, $replacement, $version, $message );
|
|
|
|
// Allow plugin to filter the output error trigger
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) {
|
|
$message = empty( $message ) ? '' : ' ' . $message;
|
|
if ( ! is_null( $replacement ) )
|
|
trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) . $message );
|
|
else
|
|
trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $file, $version ) . $message );
|
|
}
|
|
}
|
|
/**
|
|
* Marks a function argument as deprecated and informs when it has been used.
|
|
*
|
|
* This function is to be used whenever a deprecated function argument is used.
|
|
* Before this function is called, the argument must be checked for whether it was
|
|
* used by comparing it to its default value or evaluating whether it is empty.
|
|
* For example:
|
|
* <code>
|
|
* if ( !empty($deprecated) )
|
|
* _deprecated_argument( __FUNCTION__, '3.0' );
|
|
* </code>
|
|
*
|
|
* There is a hook deprecated_argument_run that will be called that can be used
|
|
* to get the backtrace up to what file and function used the deprecated
|
|
* argument.
|
|
*
|
|
* The current behavior is to trigger an user error if WP_DEBUG is true.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Debug
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @uses do_action() Calls 'deprecated_argument_run' and passes the function name, a message on the change,
|
|
* and the version in which the argument was deprecated.
|
|
* @uses apply_filters() Calls 'deprecated_argument_trigger_error' and expects boolean value of true to do
|
|
* trigger or false to not trigger error.
|
|
*
|
|
* @param string $function The function that was called
|
|
* @param string $version The version of WordPress that deprecated the argument used
|
|
* @param string $message Optional. A message regarding the change.
|
|
*/
|
|
function _deprecated_argument( $function, $version, $message = null ) {
|
|
|
|
do_action( 'deprecated_argument_run', $function, $message, $version );
|
|
|
|
// Allow plugin to filter the output error trigger
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) {
|
|
if ( ! is_null( $message ) )
|
|
trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s'), $function, $version, $message ) );
|
|
else
|
|
trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Is the server running earlier than 1.5.0 version of lighttpd
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @return bool Whether the server is running lighttpd < 1.5.0
|
|
*/
|
|
function is_lighttpd_before_150() {
|
|
$server_parts = explode( '/', isset( $_SERVER['SERVER_SOFTWARE'] )? $_SERVER['SERVER_SOFTWARE'] : '' );
|
|
$server_parts[1] = isset( $server_parts[1] )? $server_parts[1] : '';
|
|
return 'lighttpd' == $server_parts[0] && -1 == version_compare( $server_parts[1], '1.5.0' );
|
|
}
|
|
|
|
/**
|
|
* Does the specified module exist in the apache config?
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $mod e.g. mod_rewrite
|
|
* @param bool $default The default return value if the module is not found
|
|
* @return bool
|
|
*/
|
|
function apache_mod_loaded($mod, $default = false) {
|
|
global $is_apache;
|
|
|
|
if ( !$is_apache )
|
|
return false;
|
|
|
|
if ( function_exists('apache_get_modules') ) {
|
|
$mods = apache_get_modules();
|
|
if ( in_array($mod, $mods) )
|
|
return true;
|
|
} elseif ( function_exists('phpinfo') ) {
|
|
ob_start();
|
|
phpinfo(8);
|
|
$phpinfo = ob_get_clean();
|
|
if ( false !== strpos($phpinfo, $mod) )
|
|
return true;
|
|
}
|
|
return $default;
|
|
}
|
|
|
|
/**
|
|
* File validates against allowed set of defined rules.
|
|
*
|
|
* A return value of '1' means that the $file contains either '..' or './'. A
|
|
* return value of '2' means that the $file contains ':' after the first
|
|
* character. A return value of '3' means that the file is not in the allowed
|
|
* files list.
|
|
*
|
|
* @since 1.2.0
|
|
*
|
|
* @param string $file File path.
|
|
* @param array $allowed_files List of allowed files.
|
|
* @return int 0 means nothing is wrong, greater than 0 means something was wrong.
|
|
*/
|
|
function validate_file( $file, $allowed_files = '' ) {
|
|
if ( false !== strpos( $file, '..' ))
|
|
return 1;
|
|
|
|
if ( false !== strpos( $file, './' ))
|
|
return 1;
|
|
|
|
if (!empty ( $allowed_files ) && (!in_array( $file, $allowed_files ) ) )
|
|
return 3;
|
|
|
|
if (':' == substr( $file, 1, 1 ))
|
|
return 2;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Determine if SSL is used.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @return bool True if SSL, false if not used.
|
|
*/
|
|
function is_ssl() {
|
|
if ( isset($_SERVER['HTTPS']) ) {
|
|
if ( 'on' == strtolower($_SERVER['HTTPS']) )
|
|
return true;
|
|
if ( '1' == $_SERVER['HTTPS'] )
|
|
return true;
|
|
} elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Whether SSL login should be forced.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param string|bool $force Optional.
|
|
* @return bool True if forced, false if not forced.
|
|
*/
|
|
function force_ssl_login( $force = null ) {
|
|
static $forced = false;
|
|
|
|
if ( !is_null( $force ) ) {
|
|
$old_forced = $forced;
|
|
$forced = $force;
|
|
return $old_forced;
|
|
}
|
|
|
|
return $forced;
|
|
}
|
|
|
|
/**
|
|
* Whether to force SSL used for the Administration Panels.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param string|bool $force
|
|
* @return bool True if forced, false if not forced.
|
|
*/
|
|
function force_ssl_admin( $force = null ) {
|
|
static $forced = false;
|
|
|
|
if ( !is_null( $force ) ) {
|
|
$old_forced = $forced;
|
|
$forced = $force;
|
|
return $old_forced;
|
|
}
|
|
|
|
return $forced;
|
|
}
|
|
|
|
/**
|
|
* Guess the URL for the site.
|
|
*
|
|
* Will remove wp-admin links to retrieve only return URLs not in the wp-admin
|
|
* directory.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @return string
|
|
*/
|
|
function wp_guess_url() {
|
|
if ( defined('WP_SITEURL') && '' != WP_SITEURL ) {
|
|
$url = WP_SITEURL;
|
|
} else {
|
|
$schema = is_ssl() ? 'https://' : 'http://';
|
|
$url = preg_replace('|/wp-admin/.*|i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
|
|
}
|
|
return rtrim($url, '/');
|
|
}
|
|
|
|
/**
|
|
* Suspend cache invalidation.
|
|
*
|
|
* Turns cache invalidation on and off. Useful during imports where you don't wont to do invalidations
|
|
* every time a post is inserted. Callers must be sure that what they are doing won't lead to an inconsistent
|
|
* cache when invalidation is suspended.
|
|
*
|
|
* @since 2.7.0
|
|
*
|
|
* @param bool $suspend Whether to suspend or enable cache invalidation
|
|
* @return bool The current suspend setting
|
|
*/
|
|
function wp_suspend_cache_invalidation($suspend = true) {
|
|
global $_wp_suspend_cache_invalidation;
|
|
|
|
$current_suspend = $_wp_suspend_cache_invalidation;
|
|
$_wp_suspend_cache_invalidation = $suspend;
|
|
return $current_suspend;
|
|
}
|
|
|
|
/**
|
|
* Retrieve site option value based on name of option.
|
|
*
|
|
* @see get_option()
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.8.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_site_option_$option' before checking the option.
|
|
* Any value other than false will "short-circuit" the retrieval of the option
|
|
* and return the returned value.
|
|
* @uses apply_filters() Calls 'site_option_$option', after checking the option, with
|
|
* the option value.
|
|
*
|
|
* @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
|
|
* @param mixed $default Optional value to return if option doesn't exist. Default false.
|
|
* @param bool $use_cache Whether to use cache. Multisite only. Default true.
|
|
* @return mixed Value set for the option.
|
|
*/
|
|
function get_site_option( $option, $default = false, $use_cache = true ) {
|
|
global $wpdb;
|
|
|
|
// Allow plugins to short-circuit site options.
|
|
$pre = apply_filters( 'pre_site_option_' . $option, false );
|
|
if ( false !== $pre )
|
|
return $pre;
|
|
|
|
if ( !is_multisite() ) {
|
|
$value = get_option($option, $default);
|
|
} else {
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
if ( $use_cache )
|
|
$value = wp_cache_get($cache_key, 'site-options');
|
|
|
|
if ( !isset($value) || (false === $value) ) {
|
|
$row = $wpdb->get_row( $wpdb->prepare("SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
|
|
|
|
// Has to be get_row instead of get_var because of funkiness with 0, false, null values
|
|
if ( is_object( $row ) )
|
|
$value = $row->meta_value;
|
|
else
|
|
$value = $default;
|
|
|
|
$value = maybe_unserialize( $value );
|
|
|
|
wp_cache_set( $cache_key, $value, 'site-options' );
|
|
}
|
|
}
|
|
|
|
return apply_filters( 'site_option_' . $option, $value );
|
|
}
|
|
|
|
/**
|
|
* Add a new site option.
|
|
*
|
|
* @see add_option()
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.8.0
|
|
*
|
|
* @uses apply_filters() Calls 'pre_add_site_option_$option' hook to allow overwriting the
|
|
* option value to be stored.
|
|
* @uses do_action() Calls 'add_site_option_$option' and 'add_site_option' hooks on success.
|
|
*
|
|
* @param string $option Name of option to add. Expected to not be SQL-escaped.
|
|
* @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.
|
|
* @return bool False if option was not added and true if option was added.
|
|
*/
|
|
function add_site_option( $option, $value ) {
|
|
global $wpdb;
|
|
|
|
$value = apply_filters( 'pre_add_site_option_' . $option, $value );
|
|
|
|
if ( !is_multisite() ) {
|
|
$result = add_option( $option, $value );
|
|
} else {
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
|
|
if ( $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) ) )
|
|
return update_site_option( $option, $value );
|
|
|
|
$value = sanitize_option( $option, $value );
|
|
wp_cache_set( $cache_key, $value, 'site-options' );
|
|
|
|
$_value = $value;
|
|
$value = maybe_serialize($value);
|
|
$result = $wpdb->insert( $wpdb->sitemeta, array('site_id' => $wpdb->siteid, 'meta_key' => $option, 'meta_value' => $value ) );
|
|
$value = $_value;
|
|
}
|
|
|
|
do_action( "add_site_option_{$option}", $option, $value );
|
|
do_action( "add_site_option", $option, $value );
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Removes site option by name.
|
|
*
|
|
* @see delete_option()
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
* @since 2.8.0
|
|
*
|
|
* @uses do_action() Calls 'pre_delete_site_option_$option' hook before option is deleted.
|
|
* @uses do_action() Calls 'delete_site_option' and 'delete_site_option_$option'
|
|
* hooks on success.
|
|
*
|
|
* @param string $option Name of option to remove. Expected to not be SQL-escaped.
|
|
* @return bool True, if succeed. False, if failure.
|
|
*/
|
|
function delete_site_option( $option ) {
|
|
global $wpdb;
|
|
|
|
// ms_protect_special_option( $option ); @todo
|
|
|
|
do_action( 'pre_delete_site_option_' . $option );
|
|
|
|
if ( !is_multisite() ) {
|
|
$result = delete_option( $option );
|
|
} else {
|
|
$row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
|
|
if ( is_null( $row ) || !$row->meta_id )
|
|
return false;
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
wp_cache_delete( $cache_key, 'site-options' );
|
|
|
|
$result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
|
|
}
|
|
|
|
if ( $result ) {
|
|
do_action( "delete_site_option_{$option}", $option );
|
|
do_action( "delete_site_option", $option );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Update the value of a site option that was already added.
|
|
*
|
|
* @see update_option()
|
|
* @since 2.8.0
|
|
* @package WordPress
|
|
* @subpackage Option
|
|
*
|
|
* @uses apply_filters() Calls 'pre_update_site_option_$option' hook to allow overwriting the
|
|
* option value to be stored.
|
|
* @uses do_action() Calls 'update_site_option_$option' and 'update_site_option' hooks on success.
|
|
*
|
|
* @param string $option Name of option. Expected to not be SQL-escaped.
|
|
* @param mixed $value Option value. Expected to not be SQL-escaped.
|
|
* @return bool False if value was not updated and true if value was updated.
|
|
*/
|
|
function update_site_option( $option, $value ) {
|
|
global $wpdb;
|
|
|
|
$oldvalue = get_site_option( $option );
|
|
$value = apply_filters( 'pre_update_site_option_' . $option, $value, $oldvalue );
|
|
|
|
if ( $value === $oldvalue )
|
|
return false;
|
|
|
|
if ( !is_multisite() ) {
|
|
$result = update_option( $option, $value );
|
|
} else {
|
|
$cache_key = "{$wpdb->siteid}:$option";
|
|
|
|
if ( $value && !$wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) ) )
|
|
return add_site_option( $option, $value );
|
|
$value = sanitize_option( $option, $value );
|
|
wp_cache_set( $cache_key, $value, 'site-options' );
|
|
|
|
$_value = $value;
|
|
$value = maybe_serialize( $value );
|
|
$result = $wpdb->update( $wpdb->sitemeta, array( 'meta_value' => $value ), array( 'site_id' => $wpdb->siteid, 'meta_key' => $option ) );
|
|
$value = $_value;
|
|
}
|
|
|
|
if ( $result ) {
|
|
do_action( "update_site_option_{$option}", $option, $value );
|
|
do_action( "update_site_option", $option, $value );
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Delete a site transient
|
|
*
|
|
* @since 2.9.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @uses do_action() Calls 'delete_site_transient_$transient' hook before transient is deleted.
|
|
* @uses do_action() Calls 'deleted_site_transient' hook on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @return bool True if successful, false otherwise
|
|
*/
|
|
function delete_site_transient( $transient ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
do_action( 'delete_site_transient_' . $transient, $transient );
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$result = wp_cache_delete( $transient, 'site-transient' );
|
|
} else {
|
|
$option_timeout = '_site_transient_timeout_' . $transient;
|
|
$option = '_site_transient_' . $transient;
|
|
$result = delete_site_option( $option );
|
|
if ( $result )
|
|
delete_site_option( $option_timeout );
|
|
}
|
|
if ( $result )
|
|
do_action( 'deleted_site_transient', $transient );
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Get the value of a site transient
|
|
*
|
|
* If the transient does not exist or does not have a value, then the return value
|
|
* will be false.
|
|
*
|
|
* @see get_transient()
|
|
* @since 2.9.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @uses apply_filters() Calls 'pre_site_transient_$transient' hook before checking the transient.
|
|
* Any value other than false will "short-circuit" the retrieval of the transient
|
|
* and return the returned value.
|
|
* @uses apply_filters() Calls 'site_transient_$option' hook, after checking the transient, with
|
|
* the transient value.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @return mixed Value of transient
|
|
*/
|
|
function get_site_transient( $transient ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
$pre = apply_filters( 'pre_site_transient_' . $transient, false );
|
|
if ( false !== $pre )
|
|
return $pre;
|
|
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$value = wp_cache_get( $transient, 'site-transient' );
|
|
} else {
|
|
// Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.
|
|
$no_timeout = array('update_core', 'update_plugins', 'update_themes');
|
|
$transient_option = '_site_transient_' . $transient;
|
|
if ( ! in_array( $transient, $no_timeout ) ) {
|
|
$transient_timeout = '_site_transient_timeout_' . $transient;
|
|
$timeout = get_site_option( $transient_timeout );
|
|
if ( false !== $timeout && $timeout < time() ) {
|
|
delete_site_option( $transient_option );
|
|
delete_site_option( $transient_timeout );
|
|
return false;
|
|
}
|
|
}
|
|
|
|
$value = get_site_option( $transient_option );
|
|
}
|
|
|
|
return apply_filters( 'site_transient_' . $transient, $value );
|
|
}
|
|
|
|
/**
|
|
* Set/update the value of a site transient
|
|
*
|
|
* You do not need to serialize values, if the value needs to be serialize, then
|
|
* it will be serialized before it is set.
|
|
*
|
|
* @see set_transient()
|
|
* @since 2.9.0
|
|
* @package WordPress
|
|
* @subpackage Transient
|
|
*
|
|
* @uses apply_filters() Calls 'pre_set_site_transient_$transient' hook to allow overwriting the
|
|
* transient value to be stored.
|
|
* @uses do_action() Calls 'set_site_transient_$transient' and 'setted_site_transient' hooks on success.
|
|
*
|
|
* @param string $transient Transient name. Expected to not be SQL-escaped.
|
|
* @param mixed $value Transient value. Expected to not be SQL-escaped.
|
|
* @param int $expiration Time until expiration in seconds, default 0
|
|
* @return bool False if value was not set and true if value was set.
|
|
*/
|
|
function set_site_transient( $transient, $value, $expiration = 0 ) {
|
|
global $_wp_using_ext_object_cache;
|
|
|
|
$value = apply_filters( 'pre_set_site_transient_' . $transient, $value );
|
|
|
|
if ( $_wp_using_ext_object_cache ) {
|
|
$result = wp_cache_set( $transient, $value, 'site-transient', $expiration );
|
|
} else {
|
|
$transient_timeout = '_site_transient_timeout_' . $transient;
|
|
$transient = '_site_transient_' . $transient;
|
|
if ( false === get_site_option( $transient ) ) {
|
|
if ( $expiration )
|
|
add_site_option( $transient_timeout, time() + $expiration );
|
|
$result = add_site_option( $transient, $value );
|
|
} else {
|
|
if ( $expiration )
|
|
update_site_option( $transient_timeout, time() + $expiration );
|
|
$result = update_site_option( $transient, $value );
|
|
}
|
|
}
|
|
if ( $result ) {
|
|
do_action( 'set_site_transient_' . $transient );
|
|
do_action( 'setted_site_transient', $transient );
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* is main site
|
|
*
|
|
*
|
|
* @since 3.0.0
|
|
* @package WordPress
|
|
*
|
|
* @param int $blog_id optional blog id to test (default current blog)
|
|
* @return bool True if not multisite or $blog_id is main site
|
|
*/
|
|
function is_main_site( $blog_id = '' ) {
|
|
global $current_site, $current_blog;
|
|
|
|
if ( !is_multisite() )
|
|
return true;
|
|
|
|
if ( !$blog_id )
|
|
$blog_id = $current_blog->blog_id;
|
|
|
|
return $blog_id == $current_site->blog_id;
|
|
}
|
|
|
|
/**
|
|
* Whether global terms are enabled.
|
|
*
|
|
*
|
|
* @since 3.0.0
|
|
* @package WordPress
|
|
*
|
|
* @return bool True if multisite and global terms enabled
|
|
*/
|
|
function global_terms_enabled() {
|
|
if ( ! is_multisite() )
|
|
return false;
|
|
|
|
static $global_terms = null;
|
|
if ( is_null( $global_terms ) ) {
|
|
$filter = apply_filters( 'global_terms_enabled', null );
|
|
if ( ! is_null( $filter ) )
|
|
$global_terms = (bool) $filter;
|
|
else
|
|
$global_terms = (bool) get_site_option( 'global_terms_enabled', false );
|
|
}
|
|
return $global_terms;
|
|
}
|
|
|
|
/**
|
|
* gmt_offset modification for smart timezone handling
|
|
*
|
|
* Overrides the gmt_offset option if we have a timezone_string available
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @return float|bool
|
|
*/
|
|
function wp_timezone_override_offset() {
|
|
if ( !wp_timezone_supported() ) {
|
|
return false;
|
|
}
|
|
if ( !$timezone_string = get_option( 'timezone_string' ) ) {
|
|
return false;
|
|
}
|
|
|
|
$timezone_object = timezone_open( $timezone_string );
|
|
$datetime_object = date_create();
|
|
if ( false === $timezone_object || false === $datetime_object ) {
|
|
return false;
|
|
}
|
|
return round( timezone_offset_get( $timezone_object, $datetime_object ) / 3600, 2 );
|
|
}
|
|
|
|
/**
|
|
* Check for PHP timezone support
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @return bool
|
|
*/
|
|
function wp_timezone_supported() {
|
|
$support = false;
|
|
if (
|
|
function_exists( 'date_create' ) &&
|
|
function_exists( 'date_default_timezone_set' ) &&
|
|
function_exists( 'timezone_identifiers_list' ) &&
|
|
function_exists( 'timezone_open' ) &&
|
|
function_exists( 'timezone_offset_get' )
|
|
) {
|
|
$support = true;
|
|
}
|
|
return apply_filters( 'timezone_support', $support );
|
|
}
|
|
|
|
/**
|
|
* {@internal Missing Short Description}}
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param unknown_type $a
|
|
* @param unknown_type $b
|
|
* @return int
|
|
*/
|
|
function _wp_timezone_choice_usort_callback( $a, $b ) {
|
|
// Don't use translated versions of Etc
|
|
if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) {
|
|
// Make the order of these more like the old dropdown
|
|
if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) {
|
|
return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) );
|
|
}
|
|
if ( 'UTC' === $a['city'] ) {
|
|
if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) {
|
|
return 1;
|
|
}
|
|
return -1;
|
|
}
|
|
if ( 'UTC' === $b['city'] ) {
|
|
if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) {
|
|
return -1;
|
|
}
|
|
return 1;
|
|
}
|
|
return strnatcasecmp( $a['city'], $b['city'] );
|
|
}
|
|
if ( $a['t_continent'] == $b['t_continent'] ) {
|
|
if ( $a['t_city'] == $b['t_city'] ) {
|
|
return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] );
|
|
}
|
|
return strnatcasecmp( $a['t_city'], $b['t_city'] );
|
|
} else {
|
|
// Force Etc to the bottom of the list
|
|
if ( 'Etc' === $a['continent'] ) {
|
|
return 1;
|
|
}
|
|
if ( 'Etc' === $b['continent'] ) {
|
|
return -1;
|
|
}
|
|
return strnatcasecmp( $a['t_continent'], $b['t_continent'] );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Gives a nicely formatted list of timezone strings // temporary! Not in final
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string $selected_zone Selected Zone
|
|
* @return string
|
|
*/
|
|
function wp_timezone_choice( $selected_zone ) {
|
|
static $mo_loaded = false;
|
|
|
|
$continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific');
|
|
|
|
// Load translations for continents and cities
|
|
if ( !$mo_loaded ) {
|
|
$locale = get_locale();
|
|
$mofile = WP_LANG_DIR . '/continents-cities-' . $locale . '.mo';
|
|
load_textdomain( 'continents-cities', $mofile );
|
|
$mo_loaded = true;
|
|
}
|
|
|
|
$zonen = array();
|
|
foreach ( timezone_identifiers_list() as $zone ) {
|
|
$zone = explode( '/', $zone );
|
|
if ( !in_array( $zone[0], $continents ) ) {
|
|
continue;
|
|
}
|
|
|
|
// This determines what gets set and translated - we don't translate Etc/* strings here, they are done later
|
|
$exists = array(
|
|
0 => ( isset( $zone[0] ) && $zone[0] ),
|
|
1 => ( isset( $zone[1] ) && $zone[1] ),
|
|
2 => ( isset( $zone[2] ) && $zone[2] ),
|
|
);
|
|
$exists[3] = ( $exists[0] && 'Etc' !== $zone[0] );
|
|
$exists[4] = ( $exists[1] && $exists[3] );
|
|
$exists[5] = ( $exists[2] && $exists[3] );
|
|
|
|
$zonen[] = array(
|
|
'continent' => ( $exists[0] ? $zone[0] : '' ),
|
|
'city' => ( $exists[1] ? $zone[1] : '' ),
|
|
'subcity' => ( $exists[2] ? $zone[2] : '' ),
|
|
't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ),
|
|
't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ),
|
|
't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' )
|
|
);
|
|
}
|
|
usort( $zonen, '_wp_timezone_choice_usort_callback' );
|
|
|
|
$structure = array();
|
|
|
|
if ( empty( $selected_zone ) ) {
|
|
$structure[] = '<option selected="selected" value="">' . __( 'Select a city' ) . '</option>';
|
|
}
|
|
|
|
foreach ( $zonen as $key => $zone ) {
|
|
// Build value in an array to join later
|
|
$value = array( $zone['continent'] );
|
|
|
|
if ( empty( $zone['city'] ) ) {
|
|
// It's at the continent level (generally won't happen)
|
|
$display = $zone['t_continent'];
|
|
} else {
|
|
// It's inside a continent group
|
|
|
|
// Continent optgroup
|
|
if ( !isset( $zonen[$key - 1] ) || $zonen[$key - 1]['continent'] !== $zone['continent'] ) {
|
|
$label = $zone['t_continent'];
|
|
$structure[] = '<optgroup label="'. esc_attr( $label ) .'">';
|
|
}
|
|
|
|
// Add the city to the value
|
|
$value[] = $zone['city'];
|
|
|
|
$display = $zone['t_city'];
|
|
if ( !empty( $zone['subcity'] ) ) {
|
|
// Add the subcity to the value
|
|
$value[] = $zone['subcity'];
|
|
$display .= ' - ' . $zone['t_subcity'];
|
|
}
|
|
}
|
|
|
|
// Build the value
|
|
$value = join( '/', $value );
|
|
$selected = '';
|
|
if ( $value === $selected_zone ) {
|
|
$selected = 'selected="selected" ';
|
|
}
|
|
$structure[] = '<option ' . $selected . 'value="' . esc_attr( $value ) . '">' . esc_html( $display ) . "</option>";
|
|
|
|
// Close continent optgroup
|
|
if ( !empty( $zone['city'] ) && ( !isset($zonen[$key + 1]) || (isset( $zonen[$key + 1] ) && $zonen[$key + 1]['continent'] !== $zone['continent']) ) ) {
|
|
$structure[] = '</optgroup>';
|
|
}
|
|
}
|
|
|
|
// Do UTC
|
|
$structure[] = '<optgroup label="'. esc_attr__( 'UTC' ) .'">';
|
|
$selected = '';
|
|
if ( 'UTC' === $selected_zone )
|
|
$selected = 'selected="selected" ';
|
|
$structure[] = '<option ' . $selected . 'value="' . esc_attr( 'UTC' ) . '">' . __('UTC') . '</option>';
|
|
$structure[] = '</optgroup>';
|
|
|
|
// Do manual UTC offsets
|
|
$structure[] = '<optgroup label="'. esc_attr__( 'Manual Offsets' ) .'">';
|
|
$offset_range = array (-12, -11.5, -11, -10.5, -10, -9.5, -9, -8.5, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1, -0.5,
|
|
0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 5.75, 6, 6.5, 7, 7.5, 8, 8.5, 8.75, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 13.75, 14);
|
|
foreach ( $offset_range as $offset ) {
|
|
if ( 0 <= $offset )
|
|
$offset_name = '+' . $offset;
|
|
else
|
|
$offset_name = (string) $offset;
|
|
|
|
$offset_value = $offset_name;
|
|
$offset_name = str_replace(array('.25','.5','.75'), array(':15',':30',':45'), $offset_name);
|
|
$offset_name = 'UTC' . $offset_name;
|
|
$offset_value = 'UTC' . $offset_value;
|
|
$selected = '';
|
|
if ( $offset_value === $selected_zone )
|
|
$selected = 'selected="selected" ';
|
|
$structure[] = '<option ' . $selected . 'value="' . esc_attr( $offset_value ) . '">' . esc_html( $offset_name ) . "</option>";
|
|
|
|
}
|
|
$structure[] = '</optgroup>';
|
|
|
|
return join( "\n", $structure );
|
|
}
|
|
|
|
/**
|
|
* Strip close comment and close php tags from file headers used by WP
|
|
* See http://core.trac.wordpress.org/ticket/8497
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
function _cleanup_header_comment($str) {
|
|
return trim(preg_replace("/\s*(?:\*\/|\?>).*/", '', $str));
|
|
}
|
|
|
|
/**
|
|
* Permanently deletes posts, pages, attachments, and comments which have been in the trash for EMPTY_TRASH_DAYS.
|
|
*
|
|
* @since 2.9.0
|
|
*/
|
|
function wp_scheduled_delete() {
|
|
global $wpdb;
|
|
|
|
$delete_timestamp = time() - (60*60*24*EMPTY_TRASH_DAYS);
|
|
|
|
$posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);
|
|
|
|
foreach ( (array) $posts_to_delete as $post ) {
|
|
$post_id = (int) $post['post_id'];
|
|
if ( !$post_id )
|
|
continue;
|
|
|
|
$del_post = get_post($post_id);
|
|
|
|
if ( !$del_post || 'trash' != $del_post->post_status ) {
|
|
delete_post_meta($post_id, '_wp_trash_meta_status');
|
|
delete_post_meta($post_id, '_wp_trash_meta_time');
|
|
} else {
|
|
wp_delete_post($post_id);
|
|
}
|
|
}
|
|
|
|
$comments_to_delete = $wpdb->get_results($wpdb->prepare("SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);
|
|
|
|
foreach ( (array) $comments_to_delete as $comment ) {
|
|
$comment_id = (int) $comment['comment_id'];
|
|
if ( !$comment_id )
|
|
continue;
|
|
|
|
$del_comment = get_comment($comment_id);
|
|
|
|
if ( !$del_comment || 'trash' != $del_comment->comment_approved ) {
|
|
delete_comment_meta($comment_id, '_wp_trash_meta_time');
|
|
delete_comment_meta($comment_id, '_wp_trash_meta_status');
|
|
} else {
|
|
wp_delete_comment($comment_id);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Parse the file contents to retrieve its metadata.
|
|
*
|
|
* Searches for metadata for a file, such as a plugin or theme. Each piece of
|
|
* metadata must be on its own line. For a field spanning multple lines, it
|
|
* must not have any newlines or only parts of it will be displayed.
|
|
*
|
|
* Some users have issues with opening large files and manipulating the contents
|
|
* for want is usually the first 1kiB or 2kiB. This function stops pulling in
|
|
* the file contents when it has all of the required data.
|
|
*
|
|
* The first 8kiB of the file will be pulled in and if the file data is not
|
|
* within that first 8kiB, then the author should correct their plugin file
|
|
* and move the data headers to the top.
|
|
*
|
|
* The file is assumed to have permissions to allow for scripts to read
|
|
* the file. This is not checked however and the file is only opened for
|
|
* reading.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string $file Path to the file
|
|
* @param array $default_headers Default metadata headers
|
|
* @param string $context If specified adds filter hook "extra_<$context>_headers"
|
|
*/
|
|
function get_file_data( $file, $default_headers, $context = '' ) {
|
|
// We don't need to write to the file, so just open for reading.
|
|
$fp = fopen( $file, 'r' );
|
|
|
|
// Pull only the first 8kiB of the file in.
|
|
$file_data = fread( $fp, 8192 );
|
|
|
|
// PHP will close file handle, but we are good citizens.
|
|
fclose( $fp );
|
|
|
|
if ( $context != '' ) {
|
|
$extra_headers = apply_filters( "extra_$context".'_headers', array() );
|
|
|
|
$extra_headers = array_flip( $extra_headers );
|
|
foreach( $extra_headers as $key=>$value ) {
|
|
$extra_headers[$key] = $key;
|
|
}
|
|
$all_headers = array_merge($extra_headers, $default_headers);
|
|
} else {
|
|
$all_headers = $default_headers;
|
|
}
|
|
|
|
|
|
foreach ( $all_headers as $field => $regex ) {
|
|
preg_match( '/' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, ${$field});
|
|
if ( !empty( ${$field} ) )
|
|
${$field} = _cleanup_header_comment( ${$field}[1] );
|
|
else
|
|
${$field} = '';
|
|
}
|
|
|
|
$file_data = compact( array_keys( $all_headers ) );
|
|
|
|
return $file_data;
|
|
}
|
|
|
|
/*
|
|
* Used internally to tidy up the search terms
|
|
*
|
|
* @access private
|
|
* @since 2.9.0
|
|
*
|
|
* @param string $t
|
|
* @return string
|
|
*/
|
|
function _search_terms_tidy($t) {
|
|
return trim($t, "\"'\n\r ");
|
|
}
|
|
|
|
/**
|
|
* Returns true
|
|
*
|
|
* Useful for returning true to filters easily
|
|
*
|
|
* @since 3.0.0
|
|
* @see __return_false()
|
|
* @return bool true
|
|
*/
|
|
function __return_true() {
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Returns false
|
|
*
|
|
* Useful for returning false to filters easily
|
|
*
|
|
* @since 3.0.0
|
|
* @see __return_true()
|
|
* @return bool false
|
|
*/
|
|
function __return_false() {
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Returns 0
|
|
*
|
|
* Useful for returning 0 to filters easily
|
|
*
|
|
* @since 3.0.0
|
|
* @see __return_zero()
|
|
* @return int 0
|
|
*/
|
|
function __return_zero() {
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Returns an empty array
|
|
*
|
|
* Useful for returning an empty array to filters easily
|
|
*
|
|
* @since 3.0.0
|
|
* @see __return_zero()
|
|
* @return array Empty array
|
|
*/
|
|
function __return_empty_array() {
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* Send a HTTP header to disable content type sniffing in browsers which support it.
|
|
*
|
|
* @link http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx
|
|
* @link http://src.chromium.org/viewvc/chrome?view=rev&revision=6985
|
|
*
|
|
* @since 3.0.0
|
|
* @return none
|
|
*/
|
|
function send_nosniff_header() {
|
|
@header( 'X-Content-Type-Options: nosniff' );
|
|
}
|
|
|
|
/**
|
|
* Returns a MySQL expression for selecting the week number based on the start_of_week option.
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*
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* @internal
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* @since 3.0.0
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* @param string $column
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* @return string
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*/
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function _wp_mysql_week( $column ) {
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switch ( $start_of_week = (int) get_option( 'start_of_week' ) ) {
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default :
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case 0 :
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return "WEEK( $column, 0 )";
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case 1 :
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return "WEEK( $column, 1 )";
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case 2 :
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case 3 :
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case 4 :
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case 5 :
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case 6 :
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return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )";
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}
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}
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/**
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* Finds hierarchy loops using a callback function that maps object IDs to parent IDs.
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*
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* @since 3.1.0
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* @access private
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*
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* @param callback $callback function that accepts ( ID, $callback_args ) and outputs parent_ID
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* @param $start The ID to start the loop check at
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* @param $start_parent the parent_ID of $start to use instead of calling $callback( $start ). Use null to always use $callback
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* @param array $callback_args optional additional arguments to send to $callback
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* @return array IDs of all members of loop
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*/
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function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) {
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$override = is_null( $start_parent ) ? array() : array( $start => $start_parent );
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if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) )
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return array();
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return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true );
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}
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/**
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* Uses the "The Tortoise and the Hare" algorithm to detect loops.
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*
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* For every step of the algorithm, the hare takes two steps and the tortoise one.
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* If the hare ever laps the tortoise, there must be a loop.
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*
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* @since 3.1.0
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* @access private
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*
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* @param callback $callback function that accupts ( ID, callback_arg, ... ) and outputs parent_ID
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|
* @param $start The ID to start the loop check at
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* @param array $override an array of ( ID => parent_ID, ... ) to use instead of $callback
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* @param array $callback_args optional additional arguments to send to $callback
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* @param bool $_return_loop Return loop members or just detect presence of loop?
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* Only set to true if you already know the given $start is part of a loop
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* (otherwise the returned array might include branches)
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* @return mixed scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if $_return_loop
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*/
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function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) {
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$tortoise = $hare = $evanescent_hare = $start;
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$return = array();
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// Set evanescent_hare to one past hare
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// Increment hare two steps
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while (
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$tortoise
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&&
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( $evanescent_hare = isset( $override[$hare] ) ? $override[$hare] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) )
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&&
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( $hare = isset( $override[$evanescent_hare] ) ? $override[$evanescent_hare] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) )
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) {
|
|
if ( $_return_loop )
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|
$return[$tortoise] = $return[$evanescent_hare] = $return[$hare] = true;
|
|
|
|
// tortoise got lapped - must be a loop
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|
if ( $tortoise == $evanescent_hare || $tortoise == $hare )
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|
return $_return_loop ? $return : $tortoise;
|
|
|
|
// Increment tortoise by one step
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|
$tortoise = isset( $override[$tortoise] ) ? $override[$tortoise] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Prevents the admin bar from being shown for the current screen.
|
|
*
|
|
* This can be called immediately upon plugin load. It does not need to be called from a function hooked to the init action.
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|
*
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|
* @since 3.1.0
|
|
*/
|
|
function no_admin_bar() {
|
|
define('WP_SHOW_ADMIN_BAR', false);
|
|
}
|