4761 lines
143 KiB
PHP
4761 lines
143 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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require( ABSPATH . WPINC . '/option.php' );
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/**
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* Convert given date string into a different format.
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*
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* $format should be either a PHP date format string, e.g. 'U' for a Unix
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* timestamp, or 'G' for a Unix timestamp assuming that $date is GMT.
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*
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* If $translate is true then the given date and format string will
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* be passed to date_i18n() for translation.
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*
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* @since 0.71
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*
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* @param string $format Format of the date to return.
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* @param string $date Date string to convert.
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* @param bool $translate Whether the return date should be translated. Default true.
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* @return string|int|bool Formatted date string or Unix timestamp. False if $date is empty.
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*/
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function mysql2date( $format, $date, $translate = true ) {
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if ( empty( $date ) )
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return false;
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if ( 'G' == $format )
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return strtotime( $date . ' +0000' );
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$i = strtotime( $date );
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if ( 'U' == $format )
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return $i;
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if ( $translate )
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return date_i18n( $format, $i );
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else
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return date( $format, $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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* Other strings will be interpreted as PHP date formats (e.g. 'Y-m-d').
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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 Type of time to retrieve. Accepts 'mysql', 'timestamp', or PHP date
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* format string (e.g. 'Y-m-d').
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* @param int|bool $gmt Optional. Whether to use GMT timezone. Default false.
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* @return int|string Integer if $type is 'timestamp', string otherwise.
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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' ) * HOUR_IN_SECONDS ) ) );
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case 'timestamp':
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return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
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default:
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return ( $gmt ) ? date( $type ) : date( $type, time() + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ) );
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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 bool|int $unixtimestamp Optional. Unix timestamp. Default false.
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* @param bool $gmt Optional. Whether to use GMT timezone. Default false.
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*
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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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if ( false === $i ) {
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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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/*
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* Store original value for language with untypical grammars.
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* See https://core.trac.wordpress.org/ticket/9396
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*/
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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( $dateformatstring ) -1 );
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}
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$timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' );
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$timezone_formats_re = implode( '|', $timezone_formats );
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if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) ) {
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$timezone_string = get_option( 'timezone_string' );
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if ( $timezone_string ) {
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$timezone_object = timezone_open( $timezone_string );
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$date_object = date_create( null, $timezone_object );
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foreach( $timezone_formats as $timezone_format ) {
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if ( false !== strpos( $dateformatstring, $timezone_format ) ) {
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$formatted = date_format( $date_object, $timezone_format );
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$dateformatstring = ' '.$dateformatstring;
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$dateformatstring = preg_replace( "/([^\\\])$timezone_format/", "\\1" . backslashit( $formatted ), $dateformatstring );
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$dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );
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}
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}
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}
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}
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$j = @$datefunc( $dateformatstring, $i );
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/**
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* Filter the date formatted based on the locale.
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*
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* @since 2.8.0
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*
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* @param string $j Formatted date string.
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* @param string $req_format Format to display the date.
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* @param int $i Unix timestamp.
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* @param bool $gmt Whether to convert to GMT for time. Default false.
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*/
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$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 Optional. Precision of the number of decimal places. Default 0.
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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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/**
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* Filter the number formatted based on the locale.
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*
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* @since 2.8.0
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*
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* @param string $formatted Converted number in string format.
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*/
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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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*
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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 Optional. Precision of number of decimal places. Default 0.
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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|string $start_of_week Optional. Start of the week as an integer. Default empty string.
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* @return array Keys are 'start' and 'end'.
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*/
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function get_weekstartend( $mysqlstring, $start_of_week = '' ) {
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// MySQL string year.
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$my = substr( $mysqlstring, 0, 4 );
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// MySQL string month.
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$mm = substr( $mysqlstring, 8, 2 );
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// MySQL string day.
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$md = substr( $mysqlstring, 5, 2 );
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// The timestamp for MySQL string day.
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$day = mktime( 0, 0, 0, $md, $mm, $my );
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// The day of the week from the timestamp.
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$weekday = date( 'w', $day );
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if ( !is_numeric($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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// The most recent week start day on or before $day.
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$start = $day - DAY_IN_SECONDS * ( $weekday - $start_of_week );
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// $start + 7 days - 1 second.
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$end = $start + 7 * DAY_IN_SECONDS - 1;
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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 string $data Value to check to see if was serialized.
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* @param bool $strict Optional. Whether to be strict about the end of the string. Default true.
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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, $strict = true ) {
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// if it isn't a string, it isn't serialized.
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if ( ! is_string( $data ) ) {
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return false;
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}
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$data = trim( $data );
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if ( 'N;' == $data ) {
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return true;
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}
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if ( strlen( $data ) < 4 ) {
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return false;
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}
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if ( ':' !== $data[1] ) {
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return false;
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}
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if ( $strict ) {
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$lastc = substr( $data, -1 );
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if ( ';' !== $lastc && '}' !== $lastc ) {
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return false;
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}
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} else {
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$semicolon = strpos( $data, ';' );
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$brace = strpos( $data, '}' );
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// Either ; or } must exist.
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if ( false === $semicolon && false === $brace )
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return false;
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// But neither must be in the first X characters.
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if ( false !== $semicolon && $semicolon < 3 )
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return false;
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if ( false !== $brace && $brace < 4 )
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return false;
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}
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$token = $data[0];
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switch ( $token ) {
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case 's' :
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if ( $strict ) {
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if ( '"' !== substr( $data, -2, 1 ) ) {
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return false;
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}
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} elseif ( false === strpos( $data, '"' ) ) {
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return false;
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}
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// or else fall through
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case 'a' :
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case 'O' :
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return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data );
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case 'b' :
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case 'i' :
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case 'd' :
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$end = $strict ? '$' : '';
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return (bool) preg_match( "/^{$token}:[0-9.E-]+;$end/", $data );
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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 string $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( $data ) ) {
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return false;
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}
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$data = trim( $data );
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if ( strlen( $data ) < 4 ) {
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return false;
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} elseif ( ':' !== $data[1] ) {
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return false;
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} elseif ( ';' !== substr( $data, -1 ) ) {
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return false;
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} elseif ( $data[0] !== 's' ) {
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return false;
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} elseif ( '"' !== substr( $data, -2, 1 ) ) {
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return false;
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} else {
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return true;
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}
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}
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/**
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* Serialize data, if needed.
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*
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* @since 2.0.5
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*
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* @param string|array|object $data Data that might be serialized.
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* @return mixed A scalar data
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*/
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function maybe_serialize( $data ) {
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if ( is_array( $data ) || is_object( $data ) )
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return serialize( $data );
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// Double serialization is required for backward compatibility.
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// See https://core.trac.wordpress.org/ticket/12930
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if ( is_serialized( $data, false ) )
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return serialize( $data );
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return $data;
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}
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/**
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* Retrieve post title from XMLRPC XML.
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*
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* If the title element is not part of the XML, then the default post title from
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* the $post_default_title will be used instead.
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*
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* @since 0.71
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*
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* @global string $post_default_title Default XML-RPC post title.
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*
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* @param string $content XMLRPC XML Request content
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* @return string Post title
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*/
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function xmlrpc_getposttitle( $content ) {
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global $post_default_title;
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if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {
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$post_title = $matchtitle[1];
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} else {
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$post_title = $post_default_title;
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}
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return $post_title;
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}
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/**
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* Retrieve the post category or categories from XMLRPC XML.
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*
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* If the category element is not found, then the default post category will be
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* used. The return type then would be what $post_default_category. If the
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* category is found, then it will always be an array.
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*
|
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* @since 0.71
|
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*
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* @global string $post_default_category Default XML-RPC post category.
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*
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* @param string $content XMLRPC XML Request content
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* @return string|array List of categories or category name.
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*/
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function xmlrpc_getpostcategory( $content ) {
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global $post_default_category;
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if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) {
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$post_category = trim( $matchcat[1], ',' );
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$post_category = explode( ',', $post_category );
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} else {
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$post_category = $post_default_category;
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}
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return $post_category;
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}
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|
|
|
/**
|
|
* XMLRPC XML content without title and category elements.
|
|
*
|
|
* @since 0.71
|
|
*
|
|
* @param string $content XML-RPC XML Request content.
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* @return string XMLRPC XML Request content without title and category elements.
|
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*/
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function xmlrpc_removepostdata( $content ) {
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$content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content );
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$content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content );
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$content = trim( $content );
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return $content;
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}
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|
|
/**
|
|
* Use RegEx to extract URLs from arbitrary content.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @param string $content Content to extract URLs from.
|
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* @return array URLs found in passed string.
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|
*/
|
|
function wp_extract_urls( $content ) {
|
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preg_match_all(
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"#([\"']?)("
|
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. "(?:([\w-]+:)?//?)"
|
|
. "[^\s()<>]+"
|
|
. "[.]"
|
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. "(?:"
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. "\([\w\d]+\)|"
|
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. "(?:"
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. "[^`!()\[\]{};:'\".,<>«»“”‘’\s]|"
|
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. "(?:[:]\d+)?/?"
|
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. ")+"
|
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. ")"
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. ")\\1#",
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$content,
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$post_links
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);
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|
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$post_links = array_unique( array_map( 'html_entity_decode', $post_links[2] ) );
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return array_values( $post_links );
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}
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|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @see $wpdb
|
|
*
|
|
* @param string $content Post Content.
|
|
* @param int $post_ID Post ID.
|
|
*/
|
|
function do_enclose( $content, $post_ID ) {
|
|
global $wpdb;
|
|
|
|
//TODO: Tidy this ghetto code up and make the debug code optional
|
|
include_once( ABSPATH . WPINC . '/class-IXR.php' );
|
|
|
|
$post_links = array();
|
|
|
|
$pung = get_enclosed( $post_ID );
|
|
|
|
$post_links_temp = wp_extract_urls( $content );
|
|
|
|
foreach ( $pung as $link_test ) {
|
|
if ( ! in_array( $link_test, $post_links_temp ) ) { // link no longer in post
|
|
$mids = $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, $wpdb->esc_like( $link_test ) . '%') );
|
|
foreach ( $mids as $mid )
|
|
delete_metadata_by_mid( 'post', $mid );
|
|
}
|
|
}
|
|
|
|
foreach ( (array) $post_links_temp 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[] = $link_test;
|
|
elseif ( isset($test['path']) && ( $test['path'] != '/' ) && ($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, $wpdb->esc_like( $url ) . '%' ) ) ) {
|
|
|
|
if ( $headers = wp_get_http_headers( $url) ) {
|
|
$len = isset( $headers['content-length'] ) ? (int) $headers['content-length'] : 0;
|
|
$type = isset( $headers['content-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 ( wp_get_mime_types() as $exts => $mime ) {
|
|
if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
|
|
$type = $mime;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
|
|
add_post_meta( $post_ID, 'enclosure', "$url\n$len\n$mime\n" );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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. Default false.
|
|
* @param int $red Optional. The number of Redirects followed, Upon 5 being hit,
|
|
* returns false. Default 1.
|
|
* @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_safe_remote_request( $url, $options );
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
$headers = wp_remote_retrieve_headers( $response );
|
|
$headers['response'] = wp_remote_retrieve_response_code( $response );
|
|
|
|
// 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, wp_remote_retrieve_body( $response ) );
|
|
fclose($out_fp);
|
|
clearstatcache();
|
|
|
|
return $headers;
|
|
}
|
|
|
|
/**
|
|
* Retrieve HTTP Headers from URL.
|
|
*
|
|
* @since 1.5.1
|
|
*
|
|
* @param string $url URL to retrieve HTTP headers from.
|
|
* @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_safe_remote_head( $url );
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
return wp_remote_retrieve_headers( $response );
|
|
}
|
|
|
|
/**
|
|
* Whether the publish date of the current post in the loop is different from the
|
|
* publish date of the previous post in the loop.
|
|
*
|
|
* @since 0.71
|
|
*
|
|
* @global string $currentday The day of the current post in the loop.
|
|
* @global string $previousday The day of the previous post in the loop.
|
|
*
|
|
* @return int|bool 1|true when new day, 0|false if not a new day.
|
|
*/
|
|
function is_new_day() {
|
|
global $currentday, $previousday;
|
|
if ( $currentday != $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.
|
|
*
|
|
* @since 2.3.0
|
|
*
|
|
* @see _http_build_query() Used to build the query
|
|
* @see http://us2.php.net/manual/en/function.http-build-query.php for more on what
|
|
* http_build_query() does.
|
|
*
|
|
* @param array $data URL-encode key/value pairs.
|
|
* @return string URL-encoded string.
|
|
*/
|
|
function build_query( $data ) {
|
|
return _http_build_query( $data, null, '&', '', false );
|
|
}
|
|
|
|
/**
|
|
* From php.net (modified by Mark Jaquith to behave like the native PHP5 function).
|
|
*
|
|
* @since 3.2.0
|
|
* @access private
|
|
*
|
|
* @see http://us1.php.net/manual/en/function.http-build-query.php
|
|
*
|
|
* @param array|object $data An array or object of data. Converted to array.
|
|
* @param string $prefix Optional. Numeric index. If set, start parameter numbering with it.
|
|
* Default null.
|
|
* @param string $sep Optional. Argument separator; defaults to 'arg_separator.output'.
|
|
* Default null.
|
|
* @param string $key Optional. Used to prefix key name. Default empty.
|
|
* @param bool $urlencode Optional. Whether to use urlencode() in the result. Default true.
|
|
*
|
|
* @return string The query string.
|
|
*/
|
|
function _http_build_query( $data, $prefix = null, $sep = null, $key = '', $urlencode = true ) {
|
|
$ret = array();
|
|
|
|
foreach ( (array) $data as $k => $v ) {
|
|
if ( $urlencode)
|
|
$k = urlencode($k);
|
|
if ( is_int($k) && $prefix != null )
|
|
$k = $prefix.$k;
|
|
if ( !empty($key) )
|
|
$k = $key . '%5B' . $k . '%5D';
|
|
if ( $v === null )
|
|
continue;
|
|
elseif ( $v === FALSE )
|
|
$v = '0';
|
|
|
|
if ( is_array($v) || is_object($v) )
|
|
array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode));
|
|
elseif ( $urlencode )
|
|
array_push($ret, $k.'='.urlencode($v));
|
|
else
|
|
array_push($ret, $k.'='.$v);
|
|
}
|
|
|
|
if ( null === $sep )
|
|
$sep = ini_get('arg_separator.output');
|
|
|
|
return implode($sep, $ret);
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
* an empty string removes the key. Omitting oldquery_or_uri uses the $_SERVER
|
|
* value. Additional values provided are expected to be encoded appropriately
|
|
* with urlencode() or rawurlencode().
|
|
*
|
|
* @since 1.5.0
|
|
*
|
|
* @param string|array $param1 Either newkey or an associative_array.
|
|
* @param string $param2 Either newvalue or oldquery or URI.
|
|
* @param string $param3 Optional. Old query or URI.
|
|
* @return string New URL query string.
|
|
*/
|
|
function add_query_arg() {
|
|
$args = func_get_args();
|
|
if ( is_array( $args[0] ) ) {
|
|
if ( count( $args ) < 2 || false === $args[1] )
|
|
$uri = $_SERVER['REQUEST_URI'];
|
|
else
|
|
$uri = $args[1];
|
|
} else {
|
|
if ( count( $args ) < 3 || false === $args[2] )
|
|
$uri = $_SERVER['REQUEST_URI'];
|
|
else
|
|
$uri = $args[2];
|
|
}
|
|
|
|
if ( $frag = strstr( $uri, '#' ) )
|
|
$uri = substr( $uri, 0, -strlen( $frag ) );
|
|
else
|
|
$frag = '';
|
|
|
|
if ( 0 === stripos( $uri, 'http://' ) ) {
|
|
$protocol = 'http://';
|
|
$uri = substr( $uri, 7 );
|
|
} elseif ( 0 === stripos( $uri, 'https://' ) ) {
|
|
$protocol = 'https://';
|
|
$uri = substr( $uri, 8 );
|
|
} else {
|
|
$protocol = '';
|
|
}
|
|
|
|
if ( strpos( $uri, '?' ) !== false ) {
|
|
list( $base, $query ) = explode( '?', $uri, 2 );
|
|
$base .= '?';
|
|
} elseif ( $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( $args[0] ) ) {
|
|
$kayvees = $args[0];
|
|
$qs = array_merge( $qs, $kayvees );
|
|
} else {
|
|
$qs[ $args[0] ] = $args[1];
|
|
}
|
|
|
|
foreach ( $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 Optional. When false uses the $_SERVER value. Default false.
|
|
* @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 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
|
|
*
|
|
* @see wp_safe_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_safe_remote_get( $uri, $options );
|
|
|
|
if ( is_wp_error( $response ) )
|
|
return false;
|
|
|
|
return wp_remote_retrieve_body( $response );
|
|
}
|
|
|
|
/**
|
|
* 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',
|
|
418 => 'I\'m a teapot',
|
|
422 => 'Unprocessable Entity',
|
|
423 => 'Locked',
|
|
424 => 'Failed Dependency',
|
|
426 => 'Upgrade Required',
|
|
428 => 'Precondition Required',
|
|
429 => 'Too Many Requests',
|
|
431 => 'Request Header Fields Too Large',
|
|
|
|
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',
|
|
511 => 'Network Authentication Required',
|
|
);
|
|
}
|
|
|
|
if ( isset( $wp_header_to_desc[$code] ) )
|
|
return $wp_header_to_desc[$code];
|
|
else
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Set HTTP status header.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @see get_status_header_desc()
|
|
*
|
|
* @param int $code HTTP status code.
|
|
*/
|
|
function status_header( $code ) {
|
|
$description = get_status_header_desc( $code );
|
|
|
|
if ( empty( $description ) )
|
|
return;
|
|
|
|
$protocol = $_SERVER['SERVER_PROTOCOL'];
|
|
if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
|
|
$protocol = 'HTTP/1.0';
|
|
$status_header = "$protocol $code $description";
|
|
if ( function_exists( 'apply_filters' ) )
|
|
|
|
/**
|
|
* Filter an HTTP status header.
|
|
*
|
|
* @since 2.2.0
|
|
*
|
|
* @param string $status_header HTTP status header.
|
|
* @param int $code HTTP status code.
|
|
* @param string $description Description for the status code.
|
|
* @param string $protocol Server protocol.
|
|
*/
|
|
$status_header = apply_filters( 'status_header', $status_header, $code, $description, $protocol );
|
|
|
|
@header( $status_header, true, $code );
|
|
}
|
|
|
|
/**
|
|
* Get the header information to prevent caching.
|
|
*
|
|
* The several different headers cover the different ways cache prevention
|
|
* is handled by different browsers
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @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',
|
|
'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
|
|
'Pragma' => 'no-cache',
|
|
);
|
|
|
|
if ( function_exists('apply_filters') ) {
|
|
/**
|
|
* Filter the cache-controlling headers.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @see wp_get_nocache_headers()
|
|
*
|
|
* @param array $headers {
|
|
* Header names and field values.
|
|
*
|
|
* @type string $Expires Expires header.
|
|
* @type string $Cache-Control Cache-Control header.
|
|
* @type string $Pragma Pragma header.
|
|
* }
|
|
*/
|
|
$headers = (array) apply_filters( 'nocache_headers', $headers );
|
|
}
|
|
$headers['Last-Modified'] = false;
|
|
return $headers;
|
|
}
|
|
|
|
/**
|
|
* Set 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
|
|
*
|
|
* @see wp_get_nocache_headers()
|
|
*/
|
|
function nocache_headers() {
|
|
$headers = wp_get_nocache_headers();
|
|
|
|
unset( $headers['Last-Modified'] );
|
|
|
|
// In PHP 5.3+, make sure we are not sending a Last-Modified header.
|
|
if ( function_exists( 'header_remove' ) ) {
|
|
@header_remove( 'Last-Modified' );
|
|
} else {
|
|
// In PHP 5.2, send an empty Last-Modified header, but only as a
|
|
// last resort to override a header already sent. #WP23021
|
|
foreach ( headers_list() as $header ) {
|
|
if ( 0 === stripos( $header, 'Last-Modified' ) ) {
|
|
$headers['Last-Modified'] = '';
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach( $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 = 10 * DAY_IN_SECONDS;
|
|
|
|
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
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @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' (yes) or 'n' (no).
|
|
* @return bool True if yes, false on anything else.
|
|
*/
|
|
function bool_from_yn( $yn ) {
|
|
return ( strtolower( $yn ) == 'y' );
|
|
}
|
|
|
|
/**
|
|
* Load 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.
|
|
*/
|
|
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 ) )
|
|
wp_die( __( 'ERROR: This is not a valid feed template.' ), '', array( 'response' => 404 ) );
|
|
|
|
/**
|
|
* Fires once the given feed is loaded.
|
|
*
|
|
* The dynamic hook name, $hook, refers to the feed name.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @param bool $is_comment_feed Whether the feed is a comment feed.
|
|
*/
|
|
do_action( $hook, $wp_query->is_comment_feed );
|
|
}
|
|
|
|
/**
|
|
* Load the RDF RSS 0.91 Feed template.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @see load_template()
|
|
*/
|
|
function do_feed_rdf() {
|
|
load_template( ABSPATH . WPINC . '/feed-rdf.php' );
|
|
}
|
|
|
|
/**
|
|
* Load the RSS 1.0 Feed Template.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @see load_template()
|
|
*/
|
|
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
|
|
*
|
|
* @see load_template()
|
|
*
|
|
* @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
|
|
*
|
|
* @see load_template()
|
|
*
|
|
* @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 robots.txt file content.
|
|
*
|
|
* The echo content should be with usage of the permalinks or for creating the
|
|
* robots.txt file.
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
function do_robots() {
|
|
header( 'Content-Type: text/plain; charset=utf-8' );
|
|
|
|
/**
|
|
* Fires when displaying the robots.txt file.
|
|
*
|
|
* @since 2.1.0
|
|
*/
|
|
do_action( 'do_robotstxt' );
|
|
|
|
$output = "User-agent: *\n";
|
|
$public = get_option( 'blog_public' );
|
|
if ( '0' == $public ) {
|
|
$output .= "Disallow: /\n";
|
|
} else {
|
|
$site_url = parse_url( site_url() );
|
|
$path = ( !empty( $site_url['path'] ) ) ? $site_url['path'] : '';
|
|
$output .= "Disallow: $path/wp-admin/\n";
|
|
}
|
|
|
|
/**
|
|
* Filter the robots.txt output.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $output Robots.txt output.
|
|
* @param bool $public Whether the site is considered "public".
|
|
*/
|
|
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 'siteurl' option for whether WordPress is installed.
|
|
*
|
|
* @since 2.1.0
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @return bool Whether the 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;
|
|
|
|
// If visiting repair.php, return true and let it take over.
|
|
if ( defined( 'WP_REPAIRING' ) )
|
|
return true;
|
|
|
|
$suppress = $wpdb->suppress_errors();
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
$wp_tables = $wpdb->tables();
|
|
foreach ( $wp_tables as $table ) {
|
|
// 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 ( ! $wpdb->get_results( "DESCRIBE $table;" ) )
|
|
continue;
|
|
|
|
// One or more tables exist. We are insane.
|
|
|
|
wp_load_translations_early();
|
|
|
|
// Die with a DB error.
|
|
$wpdb->error = sprintf( __( 'One or more database tables are unavailable. The database may need to be <a href="%s">repaired</a>.' ), 'maint/repair.php?referrer=is_blog_installed' );
|
|
dead_db();
|
|
}
|
|
|
|
$wpdb->suppress_errors( $suppress );
|
|
|
|
wp_cache_set( 'is_blog_installed', false );
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve URL with nonce added to URL query.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $actionurl URL to add nonce action.
|
|
* @param string $action Optional. Nonce action name. Default -1.
|
|
* @param string $name Optional. Nonce name. Default '_wpnonce'.
|
|
* @return string Escaped URL with nonce action added.
|
|
*/
|
|
function wp_nonce_url( $actionurl, $action = -1, $name = '_wpnonce' ) {
|
|
$actionurl = str_replace( '&', '&', $actionurl );
|
|
return esc_html( add_query_arg( $name, 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.
|
|
*
|
|
* 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.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $action Optional. Action name. Default -1.
|
|
* @param string $name Optional. Nonce name. Default '_wpnonce'.
|
|
* @param bool $referer Optional. Whether to set the referer field for validation. Default true.
|
|
* @param bool $echo Optional. Whether to display or return hidden form field. Default true.
|
|
* @return string Nonce field HTML markup.
|
|
*/
|
|
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 ( $referer )
|
|
$nonce_field .= wp_referer_field( false );
|
|
|
|
if ( $echo )
|
|
echo $nonce_field;
|
|
|
|
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.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param bool $echo Optional. Whether to echo or return the referer field. Default true.
|
|
* @return string Referer field HTML markup.
|
|
*/
|
|
function wp_referer_field( $echo = true ) {
|
|
$referer_field = '<input type="hidden" name="_wp_http_referer" value="'. esc_attr( wp_unslash( $_SERVER['REQUEST_URI'] ) ) . '" />';
|
|
|
|
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 wp_referer_field(), if that was posted already or it will be the
|
|
* current page, if it doesn't exist.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param bool $echo Optional. Whether to echo the original http referer. Default true.
|
|
* @param string $jump_back_to Optional. Can be 'previous' or page you want to jump back to.
|
|
* Default 'current'.
|
|
* @return string Original referer field.
|
|
*/
|
|
function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) {
|
|
if ( ! $ref = wp_get_original_referer() ) {
|
|
$ref = 'previous' == $jump_back_to ? wp_get_referer() : wp_unslash( $_SERVER['REQUEST_URI'] );
|
|
}
|
|
$orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr( $ref ) . '" />';
|
|
if ( $echo )
|
|
echo $orig_referer_field;
|
|
return $orig_referer_field;
|
|
}
|
|
|
|
/**
|
|
* Retrieve referer from '_wp_http_referer' or HTTP referer.
|
|
*
|
|
* If it's the same as the current request URL, will return false.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @return string|bool False on failure. Referer URL on success.
|
|
*/
|
|
function wp_get_referer() {
|
|
if ( ! function_exists( 'wp_validate_redirect' ) )
|
|
return false;
|
|
$ref = false;
|
|
if ( ! empty( $_REQUEST['_wp_http_referer'] ) )
|
|
$ref = wp_unslash( $_REQUEST['_wp_http_referer'] );
|
|
else if ( ! empty( $_SERVER['HTTP_REFERER'] ) )
|
|
$ref = wp_unslash( $_SERVER['HTTP_REFERER'] );
|
|
|
|
if ( $ref && $ref !== wp_unslash( $_SERVER['REQUEST_URI'] ) )
|
|
return wp_validate_redirect( $ref, false );
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve original referer that was posted, if it exists.
|
|
*
|
|
* @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'] ) && function_exists( 'wp_validate_redirect' ) )
|
|
return wp_validate_redirect( wp_unslash( $_REQUEST['_wp_original_http_referer'] ), false );
|
|
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 ) {
|
|
$wrapper = null;
|
|
|
|
// Strip the protocol.
|
|
if( wp_is_stream( $target ) ) {
|
|
list( $wrapper, $target ) = explode( '://', $target, 2 );
|
|
}
|
|
|
|
// From php.net/mkdir user contributed notes.
|
|
$target = str_replace( '//', '/', $target );
|
|
|
|
// Put the wrapper back on the target.
|
|
if( $wrapper !== null ) {
|
|
$target = $wrapper . '://' . $target;
|
|
}
|
|
|
|
/*
|
|
* Safe mode fails with a trailing slash under certain PHP versions.
|
|
* Use rtrim() instead of untrailingslashit to avoid formatting.php dependency.
|
|
*/
|
|
$target = rtrim($target, '/');
|
|
if ( empty($target) )
|
|
$target = '/';
|
|
|
|
if ( file_exists( $target ) )
|
|
return @is_dir( $target );
|
|
|
|
// We need to find the permissions of the parent folder that exists and inherit that.
|
|
$target_parent = dirname( $target );
|
|
while ( '.' != $target_parent && ! is_dir( $target_parent ) ) {
|
|
$target_parent = dirname( $target_parent );
|
|
}
|
|
|
|
// Get the permission bits.
|
|
if ( $stat = @stat( $target_parent ) ) {
|
|
$dir_perms = $stat['mode'] & 0007777;
|
|
} else {
|
|
$dir_perms = 0777;
|
|
}
|
|
|
|
if ( @mkdir( $target, $dir_perms, true ) ) {
|
|
|
|
/*
|
|
* If a umask is set that modifies $dir_perms, we'll have to re-set
|
|
* the $dir_perms correctly with chmod()
|
|
*/
|
|
if ( $dir_perms != ( $dir_perms & ~umask() ) ) {
|
|
$folder_parts = explode( '/', substr( $target, strlen( $target_parent ) + 1 ) );
|
|
for ( $i = 1; $i <= count( $folder_parts ); $i++ ) {
|
|
@chmod( $target_parent . '/' . implode( '/', array_slice( $folder_parts, 0, $i ) ), $dir_perms );
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Test if a give filesystem path is absolute.
|
|
*
|
|
* For example, '/foo/bar', or '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 ( $path[0] == '/' || $path[0] == '\\' );
|
|
}
|
|
|
|
/**
|
|
* Join two filesystem paths together.
|
|
*
|
|
* For example, '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 Base path.
|
|
* @param string $path Path relative to $base.
|
|
* @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, '/');
|
|
}
|
|
|
|
/**
|
|
* Normalize a filesystem path.
|
|
*
|
|
* Replaces backslashes with forward slashes for Windows systems, and ensures
|
|
* no duplicate slashes exist.
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @param string $path Path to normalize.
|
|
* @return string Normalized path.
|
|
*/
|
|
function wp_normalize_path( $path ) {
|
|
$path = str_replace( '\\', '/', $path );
|
|
$path = preg_replace( '|/+|','/', $path );
|
|
return $path;
|
|
}
|
|
|
|
/**
|
|
* Determine a writable directory for temporary files.
|
|
*
|
|
* Function's preference is the return value of sys_get_temp_dir(),
|
|
* followed by your PHP temporary upload directory, followed by WP_CONTENT_DIR,
|
|
* before finally defaulting to /tmp/
|
|
*
|
|
* In the event that this function does not find a writable location,
|
|
* It may be overridden by the WP_TEMP_DIR constant in your wp-config.php file.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @return string Writable temporary directory.
|
|
*/
|
|
function get_temp_dir() {
|
|
static $temp;
|
|
if ( defined('WP_TEMP_DIR') )
|
|
return trailingslashit(WP_TEMP_DIR);
|
|
|
|
if ( $temp )
|
|
return trailingslashit( $temp );
|
|
|
|
if ( function_exists('sys_get_temp_dir') ) {
|
|
$temp = sys_get_temp_dir();
|
|
if ( @is_dir( $temp ) && wp_is_writable( $temp ) )
|
|
return trailingslashit( $temp );
|
|
}
|
|
|
|
$temp = ini_get('upload_tmp_dir');
|
|
if ( @is_dir( $temp ) && wp_is_writable( $temp ) )
|
|
return trailingslashit( $temp );
|
|
|
|
$temp = WP_CONTENT_DIR . '/';
|
|
if ( is_dir( $temp ) && wp_is_writable( $temp ) )
|
|
return $temp;
|
|
|
|
$temp = '/tmp/';
|
|
return $temp;
|
|
}
|
|
|
|
/**
|
|
* Determine if a directory is writable.
|
|
*
|
|
* This function is used to work around certain ACL issues in PHP primarily
|
|
* affecting Windows Servers.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @see win_is_writable()
|
|
*
|
|
* @param string $path Path to check for write-ability.
|
|
* @return bool Whether the path is writable.
|
|
*/
|
|
function wp_is_writable( $path ) {
|
|
if ( 'WIN' === strtoupper( substr( PHP_OS, 0, 3 ) ) )
|
|
return win_is_writable( $path );
|
|
else
|
|
return @is_writable( $path );
|
|
}
|
|
|
|
/**
|
|
* Workaround for Windows bug in is_writable() function
|
|
*
|
|
* PHP has issues with Windows ACL's for determine if a
|
|
* directory is writable or not, this works around them by
|
|
* checking the ability to open files rather than relying
|
|
* upon PHP to interprate the OS ACL.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @see http://bugs.php.net/bug.php?id=27609
|
|
* @see http://bugs.php.net/bug.php?id=30931
|
|
*
|
|
* @param string $path Windows path to check for write-ability.
|
|
* @return bool Whether the path is writable.
|
|
*/
|
|
function win_is_writable( $path ) {
|
|
|
|
if ( $path[strlen( $path ) - 1] == '/' ) // if it looks like a directory, check a random file within the directory
|
|
return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp');
|
|
else if ( is_dir( $path ) ) // If it's a directory (and not a file) check a random file within the directory
|
|
return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' );
|
|
|
|
// check tmp file for read/write capabilities
|
|
$should_delete_tmp_file = !file_exists( $path );
|
|
$f = @fopen( $path, 'a' );
|
|
if ( $f === false )
|
|
return false;
|
|
fclose( $f );
|
|
if ( $should_delete_tmp_file )
|
|
unlink( $path );
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @param string $time Optional. Time formatted in 'yyyy/mm'. Default null.
|
|
* @return array See above for description.
|
|
*/
|
|
function wp_upload_dir( $time = null ) {
|
|
$siteurl = get_option( 'siteurl' );
|
|
$upload_path = trim( get_option( 'upload_path' ) );
|
|
|
|
if ( empty( $upload_path ) || 'wp-content/uploads' == $upload_path ) {
|
|
$dir = WP_CONTENT_DIR . '/uploads';
|
|
} elseif ( 0 !== strpos( $upload_path, ABSPATH ) ) {
|
|
// $dir is absolute, $upload_path is (maybe) relative to ABSPATH
|
|
$dir = path_join( ABSPATH, $upload_path );
|
|
} else {
|
|
$dir = $upload_path;
|
|
}
|
|
|
|
if ( !$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;
|
|
}
|
|
|
|
/*
|
|
* Honor the value of UPLOADS. This happens as long as ms-files rewriting is disabled.
|
|
* We also sometimes obey UPLOADS when rewriting is enabled -- see the next block.
|
|
*/
|
|
if ( defined( 'UPLOADS' ) && ! ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) ) {
|
|
$dir = ABSPATH . UPLOADS;
|
|
$url = trailingslashit( $siteurl ) . UPLOADS;
|
|
}
|
|
|
|
// If multisite (and if not the main site in a post-MU network)
|
|
if ( is_multisite() && ! ( is_main_network() && is_main_site() && defined( 'MULTISITE' ) ) ) {
|
|
|
|
if ( ! get_site_option( 'ms_files_rewriting' ) ) {
|
|
/*
|
|
* If ms-files rewriting is disabled (networks created post-3.5), it is fairly
|
|
* straightforward: Append sites/%d if we're not on the main site (for post-MU
|
|
* networks). (The extra directory prevents a four-digit ID from conflicting with
|
|
* a year-based directory for the main site. But if a MU-era network has disabled
|
|
* ms-files rewriting manually, they don't need the extra directory, as they never
|
|
* had wp-content/uploads for the main site.)
|
|
*/
|
|
|
|
if ( defined( 'MULTISITE' ) )
|
|
$ms_dir = '/sites/' . get_current_blog_id();
|
|
else
|
|
$ms_dir = '/' . get_current_blog_id();
|
|
|
|
$dir .= $ms_dir;
|
|
$url .= $ms_dir;
|
|
|
|
} elseif ( defined( 'UPLOADS' ) && ! ms_is_switched() ) {
|
|
/*
|
|
* Handle the old-form ms-files.php rewriting if the network still has that enabled.
|
|
* When ms-files rewriting is enabled, then we only listen to UPLOADS when:
|
|
* 1) We are not on the main site in a post-MU network, as wp-content/uploads is used
|
|
* there, and
|
|
* 2) We are not switched, as ms_upload_constants() hardcodes these constants to reflect
|
|
* the original blog ID.
|
|
*
|
|
* Rather than UPLOADS, we actually use BLOGUPLOADDIR if it is set, as it is absolute.
|
|
* (And it will be set, see ms_upload_constants().) Otherwise, UPLOADS can be used, as
|
|
* as it is relative to ABSPATH. For the final piece: when UPLOADS is used with ms-files
|
|
* rewriting in multisite, the resulting URL is /files. (#WP22702 for background.)
|
|
*/
|
|
|
|
if ( defined( 'BLOGUPLOADDIR' ) )
|
|
$dir = untrailingslashit( BLOGUPLOADDIR );
|
|
else
|
|
$dir = ABSPATH . UPLOADS;
|
|
$url = trailingslashit( $siteurl ) . 'files';
|
|
}
|
|
}
|
|
|
|
$basedir = $dir;
|
|
$baseurl = $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;
|
|
|
|
/**
|
|
* Filter the uploads directory data.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param array $uploads Array of upload directory data with keys of 'path',
|
|
* 'url', 'subdir, 'basedir', and 'error'.
|
|
*/
|
|
$uploads = apply_filters( 'upload_dir',
|
|
array(
|
|
'path' => $dir,
|
|
'url' => $url,
|
|
'subdir' => $subdir,
|
|
'basedir' => $basedir,
|
|
'baseurl' => $baseurl,
|
|
'error' => false,
|
|
) );
|
|
|
|
// Make sure we have an uploads directory.
|
|
if ( ! wp_mkdir_p( $uploads['path'] ) ) {
|
|
if ( 0 === strpos( $uploads['basedir'], ABSPATH ) )
|
|
$error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir'];
|
|
else
|
|
$error_path = basename( $uploads['basedir'] ) . $uploads['subdir'];
|
|
|
|
$message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $error_path );
|
|
$uploads['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 is passed three parameters, the first one is the directory, the
|
|
* second is the filename, and the third is the extension.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $dir Directory.
|
|
* @param string $filename File name.
|
|
* @param callback $unique_filename_callback Callback. Default null.
|
|
* @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 callback if supplied.
|
|
*/
|
|
if ( $unique_filename_callback && is_callable( $unique_filename_callback ) ) {
|
|
$filename = call_user_func( $unique_filename_callback, $dir, $name, $ext );
|
|
} 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 Filename.
|
|
* @param null $deprecated Never used. Set to null.
|
|
* @param mixed $bits File content
|
|
* @param string $time Optional. Time formatted in 'yyyy/mm'. Default null.
|
|
* @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'] && ! current_user_can( 'unfiltered_upload' ) )
|
|
return array( 'error' => __( 'Invalid file type' ) );
|
|
|
|
$upload = wp_upload_dir( $time );
|
|
|
|
if ( $upload['error'] !== false )
|
|
return $upload;
|
|
|
|
/**
|
|
* Filter whether to treat the upload bits as an error.
|
|
*
|
|
* Passing a non-array to the filter will effectively short-circuit preparing
|
|
* the upload bits, returning that value instead.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param mixed $upload_bits_error An array of upload bits data, or a non-array error to return.
|
|
*/
|
|
$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 ) ) ) {
|
|
if ( 0 === strpos( $upload['basedir'], ABSPATH ) )
|
|
$error_path = str_replace( ABSPATH, '', $upload['basedir'] ) . $upload['subdir'];
|
|
else
|
|
$error_path = basename( $upload['basedir'] ) . $upload['subdir'];
|
|
|
|
$message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $error_path );
|
|
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.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @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 ) {
|
|
$ext = strtolower( $ext );
|
|
|
|
/**
|
|
* Filter file type based on the extension name.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @see wp_ext2type()
|
|
*
|
|
* @param array $ext2type Multi-dimensional array with extensions for a default set
|
|
* of file types.
|
|
*/
|
|
$ext2type = apply_filters( 'ext2type', array(
|
|
'image' => array( 'jpg', 'jpeg', 'jpe', 'gif', 'png', 'bmp', 'tif', 'tiff', 'ico' ),
|
|
'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
|
|
'video' => array( '3g2', '3gp', '3gpp', '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', 'xps', 'oxps', 'rtf', 'wp', 'wpd', 'psd' ),
|
|
'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsm', 'xlsb' ),
|
|
'interactive' => array( 'swf', 'key', 'ppt', 'pptx', 'pptm', 'pps', 'ppsx', 'ppsm', 'sldx', 'sldm', 'odp' ),
|
|
'text' => array( 'asc', 'csv', 'tsv', 'txt' ),
|
|
'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ),
|
|
'code' => array( 'css', 'htm', 'html', 'php', 'js' ),
|
|
) );
|
|
|
|
foreach ( $ext2type as $type => $exts )
|
|
if ( in_array( $ext, $exts ) )
|
|
return $type;
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* 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 file.
|
|
* @param string $filename The name of the file (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 );
|
|
$ext = $wp_filetype['ext'];
|
|
$type = $wp_filetype['type'];
|
|
|
|
// 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 ) {
|
|
/**
|
|
* Filter the list mapping image mime types to their respective extensions.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $mime_to_ext Array of image mime types and their matching extensions.
|
|
*/
|
|
$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 );
|
|
$ext = $wp_filetype['ext'];
|
|
$type = $wp_filetype['type'];
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter the "real" file type of the given file.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $wp_check_filetype_and_ext File data array containing 'ext', 'type', and
|
|
* 'proper_filename' keys.
|
|
* @param string $file Full path to the file.
|
|
* @param string $filename The name of the file (may differ from $file due to
|
|
* $file being in a tmp directory).
|
|
* @param array $mimes Key is the file extension with value as the mime type.
|
|
*/
|
|
return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes );
|
|
}
|
|
|
|
/**
|
|
* Retrieve list of mime types and file extensions.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @return array Array of mime types keyed by the file extension regex corresponding to those types.
|
|
*/
|
|
function wp_get_mime_types() {
|
|
/**
|
|
* Filter the list of mime types and file extensions.
|
|
*
|
|
* This filter should be used to add, not remove, mime types. To remove
|
|
* mime types, use the 'upload_mimes' filter.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param array $wp_get_mime_types Mime types keyed by the file extension regex
|
|
* corresponding to those types.
|
|
*/
|
|
return apply_filters( 'mime_types', array(
|
|
// Image formats.
|
|
'jpg|jpeg|jpe' => 'image/jpeg',
|
|
'gif' => 'image/gif',
|
|
'png' => 'image/png',
|
|
'bmp' => 'image/bmp',
|
|
'tif|tiff' => 'image/tiff',
|
|
'ico' => 'image/x-icon',
|
|
// Video formats.
|
|
'asf|asx' => 'video/x-ms-asf',
|
|
'wmv' => 'video/x-ms-wmv',
|
|
'wmx' => 'video/x-ms-wmx',
|
|
'wm' => 'video/x-ms-wm',
|
|
'avi' => 'video/avi',
|
|
'divx' => 'video/divx',
|
|
'flv' => 'video/x-flv',
|
|
'mov|qt' => 'video/quicktime',
|
|
'mpeg|mpg|mpe' => 'video/mpeg',
|
|
'mp4|m4v' => 'video/mp4',
|
|
'ogv' => 'video/ogg',
|
|
'webm' => 'video/webm',
|
|
'mkv' => 'video/x-matroska',
|
|
'3gp|3gpp' => 'video/3gpp', // Can also be audio
|
|
'3g2|3gp2' => 'video/3gpp2', // Can also be audio
|
|
// Text formats.
|
|
'txt|asc|c|cc|h|srt' => 'text/plain',
|
|
'csv' => 'text/csv',
|
|
'tsv' => 'text/tab-separated-values',
|
|
'ics' => 'text/calendar',
|
|
'rtx' => 'text/richtext',
|
|
'css' => 'text/css',
|
|
'htm|html' => 'text/html',
|
|
'vtt' => 'text/vtt',
|
|
'dfxp' => 'application/ttaf+xml',
|
|
// Audio formats.
|
|
'mp3|m4a|m4b' => 'audio/mpeg',
|
|
'ra|ram' => 'audio/x-realaudio',
|
|
'wav' => 'audio/wav',
|
|
'ogg|oga' => 'audio/ogg',
|
|
'mid|midi' => 'audio/midi',
|
|
'wma' => 'audio/x-ms-wma',
|
|
'wax' => 'audio/x-ms-wax',
|
|
'mka' => 'audio/x-matroska',
|
|
// Misc application formats.
|
|
'rtf' => 'application/rtf',
|
|
'js' => 'application/javascript',
|
|
'pdf' => 'application/pdf',
|
|
'swf' => 'application/x-shockwave-flash',
|
|
'class' => 'application/java',
|
|
'tar' => 'application/x-tar',
|
|
'zip' => 'application/zip',
|
|
'gz|gzip' => 'application/x-gzip',
|
|
'rar' => 'application/rar',
|
|
'7z' => 'application/x-7z-compressed',
|
|
'exe' => 'application/x-msdownload',
|
|
'psd' => 'application/octet-stream',
|
|
// MS Office formats.
|
|
'doc' => 'application/msword',
|
|
'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
|
|
'wri' => 'application/vnd.ms-write',
|
|
'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
|
|
'mdb' => 'application/vnd.ms-access',
|
|
'mpp' => 'application/vnd.ms-project',
|
|
'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
|
|
'docm' => 'application/vnd.ms-word.document.macroEnabled.12',
|
|
'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template',
|
|
'dotm' => 'application/vnd.ms-word.template.macroEnabled.12',
|
|
'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
|
|
'xlsm' => 'application/vnd.ms-excel.sheet.macroEnabled.12',
|
|
'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12',
|
|
'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template',
|
|
'xltm' => 'application/vnd.ms-excel.template.macroEnabled.12',
|
|
'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12',
|
|
'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
|
|
'pptm' => 'application/vnd.ms-powerpoint.presentation.macroEnabled.12',
|
|
'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow',
|
|
'ppsm' => 'application/vnd.ms-powerpoint.slideshow.macroEnabled.12',
|
|
'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template',
|
|
'potm' => 'application/vnd.ms-powerpoint.template.macroEnabled.12',
|
|
'ppam' => 'application/vnd.ms-powerpoint.addin.macroEnabled.12',
|
|
'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide',
|
|
'sldm' => 'application/vnd.ms-powerpoint.slide.macroEnabled.12',
|
|
'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote',
|
|
'oxps' => 'application/oxps',
|
|
'xps' => 'application/vnd.ms-xpsdocument',
|
|
// 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',
|
|
// iWork formats.
|
|
'key' => 'application/vnd.apple.keynote',
|
|
'numbers' => 'application/vnd.apple.numbers',
|
|
'pages' => 'application/vnd.apple.pages',
|
|
) );
|
|
}
|
|
/**
|
|
* Retrieve list of allowed mime types and file extensions.
|
|
*
|
|
* @since 2.8.6
|
|
*
|
|
* @param int|WP_User $user Optional. User to check. Defaults to current user.
|
|
* @return array Array of mime types keyed by the file extension regex corresponding
|
|
* to those types.
|
|
*/
|
|
function get_allowed_mime_types( $user = null ) {
|
|
$t = wp_get_mime_types();
|
|
|
|
unset( $t['swf'], $t['exe'] );
|
|
if ( function_exists( 'current_user_can' ) )
|
|
$unfiltered = $user ? user_can( $user, 'unfiltered_html' ) : current_user_can( 'unfiltered_html' );
|
|
|
|
if ( empty( $unfiltered ) )
|
|
unset( $t['htm|html'] );
|
|
|
|
/**
|
|
* Filter list of allowed mime types and file extensions.
|
|
*
|
|
* @since 2.0.0
|
|
*
|
|
* @param array $t Mime types keyed by the file extension regex corresponding to
|
|
* those types. 'swf' and 'exe' removed from full list. 'htm|html' also
|
|
* removed depending on '$user' capabilities.
|
|
* @param int|WP_User|null $user User ID, User object or null if not provided (indicates current user).
|
|
*/
|
|
return apply_filters( 'upload_mimes', $t, $user );
|
|
}
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $action The nonce action.
|
|
*/
|
|
function wp_nonce_ays( $action ) {
|
|
$title = __( 'WordPress Failure Notice' );
|
|
if ( 'log-out' == $action ) {
|
|
$html = sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'name' ) ) . '</p><p>';
|
|
$redirect_to = isset( $_REQUEST['redirect_to'] ) ? $_REQUEST['redirect_to'] : '';
|
|
$html .= sprintf( __( "Do you really want to <a href='%s'>log out</a>?"), wp_logout_url( $redirect_to ) );
|
|
} else {
|
|
$html = __( 'Are you sure you want to do this?' );
|
|
if ( 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 silently.
|
|
*
|
|
* @since 2.0.4
|
|
*
|
|
* @param string $message Optional. Error message. Default empty.
|
|
* @param string $title Optional. Error title. Default empty.
|
|
* @param string|array $args Optional. Arguments to control behavior. Default empty array.
|
|
*/
|
|
function wp_die( $message = '', $title = '', $args = array() ) {
|
|
if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
|
|
/**
|
|
* Filter callback for killing WordPress execution for AJAX requests.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param callback $function Callback function name.
|
|
*/
|
|
$function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' );
|
|
} elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) {
|
|
/**
|
|
* Filter callback for killing WordPress execution for XML-RPC requests.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @param callback $function Callback function name.
|
|
*/
|
|
$function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' );
|
|
} else {
|
|
/**
|
|
* Filter callback for killing WordPress execution for all non-AJAX, non-XML-RPC requests.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param callback $function Callback function name.
|
|
*/
|
|
$function = apply_filters( 'wp_die_handler', '_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 Optional. Error title. Default empty.
|
|
* @param string|array $args Optional. Arguments to control behavior. Default empty array.
|
|
*/
|
|
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;
|
|
}
|
|
} 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</a></p>";
|
|
}
|
|
|
|
if ( ! 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() )
|
|
$text_direction = 'rtl';
|
|
?>
|
|
<!DOCTYPE html>
|
|
<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono
|
|
-->
|
|
<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) && function_exists( 'is_rtl' ) ) language_attributes(); else echo "dir='$text_direction'"; ?>>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title><?php echo $title ?></title>
|
|
<style type="text/css">
|
|
html {
|
|
background: #f1f1f1;
|
|
}
|
|
body {
|
|
background: #fff;
|
|
color: #444;
|
|
font-family: "Open Sans", sans-serif;
|
|
margin: 2em auto;
|
|
padding: 1em 2em;
|
|
max-width: 700px;
|
|
-webkit-box-shadow: 0 1px 3px rgba(0,0,0,0.13);
|
|
box-shadow: 0 1px 3px rgba(0,0,0,0.13);
|
|
}
|
|
h1 {
|
|
border-bottom: 1px solid #dadada;
|
|
clear: both;
|
|
color: #666;
|
|
font: 24px "Open Sans", sans-serif;
|
|
margin: 30px 0 0 0;
|
|
padding: 0;
|
|
padding-bottom: 7px;
|
|
}
|
|
#error-page {
|
|
margin-top: 50px;
|
|
}
|
|
#error-page p {
|
|
font-size: 14px;
|
|
line-height: 1.5;
|
|
margin: 25px 0 20px;
|
|
}
|
|
#error-page code {
|
|
font-family: Consolas, Monaco, monospace;
|
|
}
|
|
ul li {
|
|
margin-bottom: 10px;
|
|
font-size: 14px ;
|
|
}
|
|
a {
|
|
color: #21759B;
|
|
text-decoration: none;
|
|
}
|
|
a:hover {
|
|
color: #D54E21;
|
|
}
|
|
.button {
|
|
background: #f7f7f7;
|
|
border: 1px solid #cccccc;
|
|
color: #555;
|
|
display: inline-block;
|
|
text-decoration: none;
|
|
font-size: 13px;
|
|
line-height: 26px;
|
|
height: 28px;
|
|
margin: 0;
|
|
padding: 0 10px 1px;
|
|
cursor: pointer;
|
|
-webkit-border-radius: 3px;
|
|
-webkit-appearance: none;
|
|
border-radius: 3px;
|
|
white-space: nowrap;
|
|
-webkit-box-sizing: border-box;
|
|
-moz-box-sizing: border-box;
|
|
box-sizing: border-box;
|
|
|
|
-webkit-box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
|
|
box-shadow: inset 0 1px 0 #fff, 0 1px 0 rgba(0,0,0,.08);
|
|
vertical-align: top;
|
|
}
|
|
|
|
.button.button-large {
|
|
height: 29px;
|
|
line-height: 28px;
|
|
padding: 0 12px;
|
|
}
|
|
|
|
.button:hover,
|
|
.button:focus {
|
|
background: #fafafa;
|
|
border-color: #999;
|
|
color: #222;
|
|
}
|
|
|
|
.button:focus {
|
|
-webkit-box-shadow: 1px 1px 1px rgba(0,0,0,.2);
|
|
box-shadow: 1px 1px 1px rgba(0,0,0,.2);
|
|
}
|
|
|
|
.button:active {
|
|
background: #eee;
|
|
border-color: #999;
|
|
color: #333;
|
|
-webkit-box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
|
|
box-shadow: inset 0 2px 5px -3px rgba( 0, 0, 0, 0.5 );
|
|
}
|
|
|
|
<?php if ( 'rtl' == $text_direction ) : ?>
|
|
body { font-family: Tahoma, Arial; }
|
|
<?php endif; ?>
|
|
</style>
|
|
</head>
|
|
<body id="error-page">
|
|
<?php endif; // ! did_action( 'admin_head' ) ?>
|
|
<?php echo $message; ?>
|
|
</body>
|
|
</html>
|
|
<?php
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Kill WordPress execution and display XML message with error message.
|
|
*
|
|
* This is the handler for wp_die when processing XMLRPC requests.
|
|
*
|
|
* @since 3.2.0
|
|
* @access private
|
|
*
|
|
* @param string $message Error message.
|
|
* @param string $title Optional. Error title. Default empty.
|
|
* @param string|array $args Optional. Arguments to control behavior. Default empty array.
|
|
*/
|
|
function _xmlrpc_wp_die_handler( $message, $title = '', $args = array() ) {
|
|
global $wp_xmlrpc_server;
|
|
$defaults = array( 'response' => 500 );
|
|
|
|
$r = wp_parse_args($args, $defaults);
|
|
|
|
if ( $wp_xmlrpc_server ) {
|
|
$error = new IXR_Error( $r['response'] , $message);
|
|
$wp_xmlrpc_server->output( $error->getXml() );
|
|
}
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Kill WordPress ajax execution.
|
|
*
|
|
* This is the handler for wp_die when processing Ajax requests.
|
|
*
|
|
* @since 3.4.0
|
|
* @access private
|
|
*
|
|
* @param string $message Optional. Response to print. Default empty.
|
|
*/
|
|
function _ajax_wp_die_handler( $message = '' ) {
|
|
if ( is_scalar( $message ) )
|
|
die( (string) $message );
|
|
die( '0' );
|
|
}
|
|
|
|
/**
|
|
* Kill WordPress execution.
|
|
*
|
|
* This is the handler for wp_die when processing APP requests.
|
|
*
|
|
* @since 3.4.0
|
|
* @access private
|
|
*
|
|
* @param string $message Optional. Response to print. Default empty.
|
|
*/
|
|
function _scalar_wp_die_handler( $message = '' ) {
|
|
if ( is_scalar( $message ) )
|
|
die( (string) $message );
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Encode a variable into JSON, with some sanity checks.
|
|
*
|
|
* @since 4.1.0
|
|
*
|
|
* @param mixed $data Variable (usually an array or object) to encode as JSON.
|
|
* @param int $options Options to be passed to json_encode(). Default 0.
|
|
* @param int $depth Maximum depth to walk through $data. Must be greater than 0, default 512.
|
|
* @return bool|string The JSON encoded string, or false if it cannot be encoded.
|
|
*/
|
|
function wp_json_encode( $data, $options = 0, $depth = 512 ) {
|
|
/*
|
|
* json_encode() has had extra params added over the years.
|
|
* $options was added in 5.3, and $depth in 5.5.
|
|
* We need to make sure we call it with the correct arguments.
|
|
*/
|
|
if ( version_compare( PHP_VERSION, '5.5', '>=' ) ) {
|
|
$args = array( $data, $options, $depth );
|
|
} elseif ( version_compare( PHP_VERSION, '5.3', '>=' ) ) {
|
|
$args = array( $data, $options );
|
|
} else {
|
|
$args = array( $data );
|
|
}
|
|
|
|
$json = call_user_func_array( 'json_encode', $args );
|
|
|
|
// If json_encode() was successful, no need to do more sanity checking.
|
|
if ( false !== $json ) {
|
|
return $json;
|
|
}
|
|
|
|
try {
|
|
$args[0] = _wp_json_sanity_check( $data, $depth );
|
|
} catch ( Exception $e ) {
|
|
return false;
|
|
}
|
|
|
|
return call_user_func_array( 'json_encode', $args );
|
|
}
|
|
|
|
/**
|
|
* Perform sanity checks on data that shall be encoded to JSON.
|
|
*
|
|
* @see wp_json_encode()
|
|
*
|
|
* @since 4.1.0
|
|
* @access private
|
|
* @internal
|
|
*
|
|
* @param mixed $data Variable (usually an array or object) to encode as JSON.
|
|
* @param int $depth Maximum depth to walk through $data. Must be greater than 0.
|
|
* @return mixed The sanitized data that shall be encoded to JSON.
|
|
*/
|
|
function _wp_json_sanity_check( $data, $depth ) {
|
|
if ( $depth < 0 ) {
|
|
throw new Exception( 'Reached depth limit' );
|
|
}
|
|
|
|
if ( is_array( $data ) ) {
|
|
$output = array();
|
|
foreach ( $data as $id => $el ) {
|
|
// Don't forget to sanitize the ID!
|
|
if ( is_string( $id ) ) {
|
|
$clean_id = _wp_json_convert_string( $id );
|
|
} else {
|
|
$clean_id = $id;
|
|
}
|
|
|
|
// Check the element type, so that we're only recursing if we really have to.
|
|
if ( is_array( $el ) || is_object( $el ) ) {
|
|
$output[ $clean_id ] = _wp_json_sanity_check( $el, $depth - 1 );
|
|
} elseif ( is_string( $el ) ) {
|
|
$output[ $clean_id ] = _wp_json_convert_string( $el );
|
|
} else {
|
|
$output[ $clean_id ] = $el;
|
|
}
|
|
}
|
|
} elseif ( is_object( $data ) ) {
|
|
$output = new stdClass;
|
|
foreach ( $data as $id => $el ) {
|
|
if ( is_string( $id ) ) {
|
|
$clean_id = _wp_json_convert_string( $id );
|
|
} else {
|
|
$clean_id = $id;
|
|
}
|
|
|
|
if ( is_array( $el ) || is_object( $el ) ) {
|
|
$output->$clean_id = _wp_json_sanity_check( $el, $depth - 1 );
|
|
} elseif ( is_string( $el ) ) {
|
|
$output->$clean_id = _wp_json_convert_string( $el );
|
|
} else {
|
|
$output->$clean_id = $el;
|
|
}
|
|
}
|
|
} elseif ( is_string( $data ) ) {
|
|
return _wp_json_convert_string( $data );
|
|
} else {
|
|
return $data;
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Convert a string to UTF-8, so that it can be safely encoded to JSON.
|
|
*
|
|
* @see _wp_json_sanity_check()
|
|
*
|
|
* @since 4.1.0
|
|
* @access private
|
|
* @internal
|
|
*
|
|
* @param string $string The string which is to be converted.
|
|
* @return string The checked string.
|
|
*/
|
|
function _wp_json_convert_string( $string ) {
|
|
static $use_mb = null;
|
|
if ( is_null( $use_mb ) ) {
|
|
$use_mb = function_exists( 'mb_convert_encoding' );
|
|
}
|
|
|
|
if ( $use_mb ) {
|
|
$encoding = mb_detect_encoding( $string, mb_detect_order(), true );
|
|
if ( $encoding ) {
|
|
return mb_convert_encoding( $string, 'UTF-8', $encoding );
|
|
} else {
|
|
return mb_convert_encoding( $string, 'UTF-8', 'UTF-8' );
|
|
}
|
|
} else {
|
|
return wp_check_invalid_utf8( $data, true );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send a JSON response back to an Ajax request.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param mixed $response Variable (usually an array or object) to encode as JSON,
|
|
* then print and die.
|
|
*/
|
|
function wp_send_json( $response ) {
|
|
@header( 'Content-Type: application/json; charset=' . get_option( 'blog_charset' ) );
|
|
echo wp_json_encode( $response );
|
|
if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
|
|
wp_die();
|
|
else
|
|
die;
|
|
}
|
|
|
|
/**
|
|
* Send a JSON response back to an Ajax request, indicating success.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param mixed $data Data to encode as JSON, then print and die.
|
|
*/
|
|
function wp_send_json_success( $data = null ) {
|
|
$response = array( 'success' => true );
|
|
|
|
if ( isset( $data ) )
|
|
$response['data'] = $data;
|
|
|
|
wp_send_json( $response );
|
|
}
|
|
|
|
/**
|
|
* Send a JSON response back to an Ajax request, indicating failure.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param mixed $data Data to encode as JSON, then print and die.
|
|
*/
|
|
function wp_send_json_error( $data = null ) {
|
|
$response = array( 'success' => false );
|
|
|
|
if ( isset( $data ) )
|
|
$response['data'] = $data;
|
|
|
|
wp_send_json( $response );
|
|
}
|
|
|
|
/**
|
|
* Retrieve the WordPress home page URL.
|
|
*
|
|
* If the constant named 'WP_HOME' exists, then it will be used and returned
|
|
* by the function. This can be used to counter the redirection on your local
|
|
* development environment.
|
|
*
|
|
* @since 2.2.0
|
|
* @access private
|
|
*
|
|
* @see WP_HOME
|
|
*
|
|
* @param string $url URL for the home location.
|
|
* @return string Homepage location.
|
|
*/
|
|
function _config_wp_home( $url = '' ) {
|
|
if ( defined( 'WP_HOME' ) )
|
|
return untrailingslashit( 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.
|
|
*
|
|
* @since 2.2.0
|
|
* @access private
|
|
*
|
|
* @see WP_SITEURL
|
|
*
|
|
* @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 untrailingslashit( 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' setting, enables the 'directionality'
|
|
* plugin, and adds the 'ltr' button to 'toolbar1', formerly
|
|
* 'theme_advanced_buttons1' array keys. These keys are then returned
|
|
* in the $input (TinyMCE settings) array.
|
|
*
|
|
* @since 2.1.0
|
|
* @access private
|
|
*
|
|
* @param array $input MCE settings 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['toolbar1'] .= ',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 ) ) {
|
|
$wpsmiliestrans = array(
|
|
':mrgreen:' => 'icon_mrgreen.gif',
|
|
':neutral:' => 'icon_neutral.gif',
|
|
':twisted:' => 'icon_twisted.gif',
|
|
':arrow:' => 'icon_arrow.gif',
|
|
':shock:' => 'icon_eek.gif',
|
|
':smile:' => 'icon_smile.gif',
|
|
':???:' => 'icon_confused.gif',
|
|
':cool:' => 'icon_cool.gif',
|
|
':evil:' => 'icon_evil.gif',
|
|
':grin:' => 'icon_biggrin.gif',
|
|
':idea:' => 'icon_idea.gif',
|
|
':oops:' => 'icon_redface.gif',
|
|
':razz:' => 'icon_razz.gif',
|
|
':roll:' => 'icon_rolleyes.gif',
|
|
':wink:' => 'icon_wink.gif',
|
|
':cry:' => 'icon_cry.gif',
|
|
':eek:' => 'icon_surprised.gif',
|
|
':lol:' => 'icon_lol.gif',
|
|
':mad:' => 'icon_mad.gif',
|
|
':sad:' => 'icon_sad.gif',
|
|
'8-)' => 'icon_cool.gif',
|
|
'8-O' => 'icon_eek.gif',
|
|
':-(' => 'icon_sad.gif',
|
|
':-)' => 'icon_smile.gif',
|
|
':-?' => 'icon_confused.gif',
|
|
':-D' => 'icon_biggrin.gif',
|
|
':-P' => 'icon_razz.gif',
|
|
':-o' => 'icon_surprised.gif',
|
|
':-x' => 'icon_mad.gif',
|
|
':-|' => 'icon_neutral.gif',
|
|
';-)' => 'icon_wink.gif',
|
|
// This one transformation breaks regular text with frequency.
|
|
// '8)' => 'icon_cool.gif',
|
|
'8O' => 'icon_eek.gif',
|
|
':(' => 'icon_sad.gif',
|
|
':)' => 'icon_smile.gif',
|
|
':?' => 'icon_confused.gif',
|
|
':D' => 'icon_biggrin.gif',
|
|
':P' => 'icon_razz.gif',
|
|
':o' => 'icon_surprised.gif',
|
|
':x' => 'icon_mad.gif',
|
|
':|' => 'icon_neutral.gif',
|
|
';)' => 'icon_wink.gif',
|
|
':!:' => 'icon_exclaim.gif',
|
|
':?:' => 'icon_question.gif',
|
|
);
|
|
}
|
|
|
|
if (count($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);
|
|
|
|
$spaces = wp_spaces_regexp();
|
|
|
|
// Begin first "subpattern"
|
|
$wp_smiliessearch = '/(?<=' . $spaces . '|^)';
|
|
|
|
$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 .= ')(?=' . $spaces . '|$)'; // End previous "subpattern"
|
|
$wp_smiliessearch .= '|(?<=' . $spaces . '|^)'; // Begin another "subpattern"
|
|
}
|
|
$subchar = $firstchar;
|
|
$wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:';
|
|
} else {
|
|
$wp_smiliessearch .= '|';
|
|
}
|
|
$wp_smiliessearch .= preg_quote($rest, '/');
|
|
}
|
|
|
|
$wp_smiliessearch .= ')(?=' . $spaces . '|$)/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 Optional. Array that serves as the defaults. Default empty.
|
|
* @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 List of ids.
|
|
* @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 Optional. An array of key => value arguments to match
|
|
* against each object. Default empty array.
|
|
* @param string $operator Optional. The logical operation to perform. 'or' means
|
|
* only one element from the array needs to match; 'and'
|
|
* means all elements must match. Default 'and'.
|
|
* @param bool|string $field A field from the object to place instead of the entire object.
|
|
* Default false.
|
|
* @return array A list of objects or object fields.
|
|
*/
|
|
function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) {
|
|
if ( ! is_array( $list ) )
|
|
return array();
|
|
|
|
$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 Optional. An array of key => value arguments to match
|
|
* against each object. Default empty array.
|
|
* @param string $operator Optional. The logical operation to perform. 'AND' means
|
|
* all elements from the array must match. 'OR' means only
|
|
* one element needs to match. 'NOT' means no elements may
|
|
* match. Default 'AND'.
|
|
* @return array Array of found values.
|
|
*/
|
|
function wp_list_filter( $list, $args = array(), $operator = 'AND' ) {
|
|
if ( ! is_array( $list ) )
|
|
return array();
|
|
|
|
if ( empty( $args ) )
|
|
return $list;
|
|
|
|
$operator = strtoupper( $operator );
|
|
$count = count( $args );
|
|
$filtered = array();
|
|
|
|
foreach ( $list as $key => $obj ) {
|
|
$to_match = (array) $obj;
|
|
|
|
$matched = 0;
|
|
foreach ( $args as $m_key => $m_value ) {
|
|
if ( array_key_exists( $m_key, $to_match ) && $m_value == $to_match[ $m_key ] )
|
|
$matched++;
|
|
}
|
|
|
|
if ( ( 'AND' == $operator && $matched == $count )
|
|
|| ( 'OR' == $operator && $matched > 0 )
|
|
|| ( 'NOT' == $operator && 0 == $matched ) ) {
|
|
$filtered[$key] = $obj;
|
|
}
|
|
}
|
|
|
|
return $filtered;
|
|
}
|
|
|
|
/**
|
|
* Pluck a certain field out of each object in a list.
|
|
*
|
|
* This has the same functionality and prototype of
|
|
* array_column() (PHP 5.5) but also supports objects.
|
|
*
|
|
* @since 3.1.0
|
|
* @since 4.0.0 $index_key parameter added.
|
|
*
|
|
* @param array $list List of objects or arrays
|
|
* @param int|string $field Field from the object to place instead of the entire object
|
|
* @param int|string $index_key Optional. Field from the object to use as keys for the new array.
|
|
* Default null.
|
|
* @return array Array of found values. If $index_key is set, an array of found values with keys
|
|
* corresponding to $index_key.
|
|
*/
|
|
function wp_list_pluck( $list, $field, $index_key = null ) {
|
|
if ( ! $index_key ) {
|
|
/*
|
|
* This is simple. Could at some point wrap array_column()
|
|
* if we knew we had an array of arrays.
|
|
*/
|
|
foreach ( $list as $key => $value ) {
|
|
if ( is_object( $value ) ) {
|
|
$list[ $key ] = $value->$field;
|
|
} else {
|
|
$list[ $key ] = $value[ $field ];
|
|
}
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/*
|
|
* When index_key is not set for a particular item, push the value
|
|
* to the end of the stack. This is how array_column() behaves.
|
|
*/
|
|
$newlist = array();
|
|
foreach ( $list as $value ) {
|
|
if ( is_object( $value ) ) {
|
|
if ( isset( $value->$index_key ) ) {
|
|
$newlist[ $value->$index_key ] = $value->$field;
|
|
} else {
|
|
$newlist[] = $value->$field;
|
|
}
|
|
} else {
|
|
if ( isset( $value[ $index_key ] ) ) {
|
|
$newlist[ $value[ $index_key ] ] = $value[ $field ];
|
|
} else {
|
|
$newlist[] = $value[ $field ];
|
|
}
|
|
}
|
|
}
|
|
|
|
return $newlist;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
function wp_maybe_load_widgets() {
|
|
/**
|
|
* Filter whether to load the Widgets library.
|
|
*
|
|
* Passing a falsey value to the filter will effectively short-circuit
|
|
* the Widgets library from loading.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param bool $wp_maybe_load_widgets Whether to load the Widgets library.
|
|
* Default true.
|
|
*/
|
|
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
|
|
*/
|
|
function wp_widgets_add_menu() {
|
|
global $submenu;
|
|
|
|
if ( ! current_theme_supports( 'widgets' ) )
|
|
return;
|
|
|
|
$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 are 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 WordPress 2.3.2, but originally was added
|
|
* in WordPress 2.5.0.
|
|
*
|
|
* @since 2.3.2
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*/
|
|
function dead_db() {
|
|
global $wpdb;
|
|
|
|
wp_load_translations_early();
|
|
|
|
// Load custom DB error template, if present.
|
|
if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) {
|
|
require_once( WP_CONTENT_DIR . '/db-error.php' );
|
|
die();
|
|
}
|
|
|
|
// If installing or in the admin, provide the verbose message.
|
|
if ( defined('WP_INSTALLING') || defined('WP_ADMIN') )
|
|
wp_die($wpdb->error);
|
|
|
|
// Otherwise, be terse.
|
|
status_header( 500 );
|
|
nocache_headers();
|
|
header( 'Content-Type: text/html; charset=utf-8' );
|
|
?>
|
|
<!DOCTYPE html>
|
|
<html xmlns="http://www.w3.org/1999/xhtml"<?php if ( is_rtl() ) echo ' dir="rtl"'; ?>>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<title><?php _e( 'Database Error' ); ?></title>
|
|
|
|
</head>
|
|
<body>
|
|
<h1><?php _e( 'Error establishing a database connection' ); ?></h1>
|
|
</body>
|
|
</html>
|
|
<?php
|
|
die();
|
|
}
|
|
|
|
/**
|
|
* Convert a value to non-negative integer.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param mixed $maybeint Data you wish to have converted to a non-negative integer.
|
|
* @return int A non-negative integer.
|
|
*/
|
|
function absint( $maybeint ) {
|
|
return abs( intval( $maybeint ) );
|
|
}
|
|
|
|
/**
|
|
* Mark a function as deprecated and inform 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 a user error if WP_DEBUG is true.
|
|
*
|
|
* This function is to be used in every function that is deprecated.
|
|
*
|
|
* @since 2.5.0
|
|
* @access private
|
|
*
|
|
* @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. Default null.
|
|
*/
|
|
function _deprecated_function( $function, $version, $replacement = null ) {
|
|
|
|
/**
|
|
* Fires when a deprecated function is called.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $function The function that was called.
|
|
* @param string $replacement The function that should have been called.
|
|
* @param string $version The version of WordPress that deprecated the function.
|
|
*/
|
|
do_action( 'deprecated_function_run', $function, $replacement, $version );
|
|
|
|
/**
|
|
* Filter whether to trigger an error for deprecated functions.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param bool $trigger Whether to trigger the error for deprecated functions. Default true.
|
|
*/
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_function_trigger_error', true ) ) {
|
|
if ( function_exists( '__' ) ) {
|
|
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 ) );
|
|
} else {
|
|
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 ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Mark a file as deprecated and inform 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 a user error if WP_DEBUG is true.
|
|
*
|
|
* This function is to be used in every file that is deprecated.
|
|
*
|
|
* @since 2.5.0
|
|
* @access private
|
|
*
|
|
* @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.
|
|
* Default null.
|
|
* @param string $message Optional. A message regarding the change. Default empty.
|
|
*/
|
|
function _deprecated_file( $file, $version, $replacement = null, $message = '' ) {
|
|
|
|
/**
|
|
* Fires when a deprecated file is called.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param string $file The file that was called.
|
|
* @param string $replacement The file that should have been included based on ABSPATH.
|
|
* @param string $version The version of WordPress that deprecated the file.
|
|
* @param string $message A message regarding the change.
|
|
*/
|
|
do_action( 'deprecated_file_included', $file, $replacement, $version, $message );
|
|
|
|
/**
|
|
* Filter whether to trigger an error for deprecated files.
|
|
*
|
|
* @since 2.5.0
|
|
*
|
|
* @param bool $trigger Whether to trigger the error for deprecated files. Default true.
|
|
*/
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) {
|
|
$message = empty( $message ) ? '' : ' ' . $message;
|
|
if ( function_exists( '__' ) ) {
|
|
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 );
|
|
} else {
|
|
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 );
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Mark a function argument as deprecated and inform 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 a user error if WP_DEBUG is true.
|
|
*
|
|
* @since 3.0.0
|
|
* @access private
|
|
*
|
|
* @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. Default null.
|
|
*/
|
|
function _deprecated_argument( $function, $version, $message = null ) {
|
|
|
|
/**
|
|
* Fires when a deprecated argument is called.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $function The function that was called.
|
|
* @param string $message A message regarding the change.
|
|
* @param string $version The version of WordPress that deprecated the argument used.
|
|
*/
|
|
do_action( 'deprecated_argument_run', $function, $message, $version );
|
|
|
|
/**
|
|
* Filter whether to trigger an error for deprecated arguments.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param bool $trigger Whether to trigger the error for deprecated arguments. Default true.
|
|
*/
|
|
if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) {
|
|
if ( function_exists( '__' ) ) {
|
|
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 ) );
|
|
} else {
|
|
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 ) );
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Mark something as being incorrectly called.
|
|
*
|
|
* There is a hook doing_it_wrong_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 a user error if WP_DEBUG is true.
|
|
*
|
|
* @since 3.1.0
|
|
* @access private
|
|
*
|
|
* @param string $function The function that was called.
|
|
* @param string $message A message explaining what has been done incorrectly.
|
|
* @param string $version The version of WordPress where the message was added.
|
|
*/
|
|
function _doing_it_wrong( $function, $message, $version ) {
|
|
|
|
/**
|
|
* Fires when the given function is being used incorrectly.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param string $function The function that was called.
|
|
* @param string $message A message explaining what has been done incorrectly.
|
|
* @param string $version The version of WordPress where the message was added.
|
|
*/
|
|
do_action( 'doing_it_wrong_run', $function, $message, $version );
|
|
|
|
/**
|
|
* Filter whether to trigger an error for _doing_it_wrong() calls.
|
|
*
|
|
* @since 3.1.0
|
|
*
|
|
* @param bool $trigger Whether to trigger the error for _doing_it_wrong() calls. Default true.
|
|
*/
|
|
if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) {
|
|
if ( function_exists( '__' ) ) {
|
|
$version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version );
|
|
$message .= ' ' . __( 'Please see <a href="http://codex.wordpress.org/Debugging_in_WordPress">Debugging in WordPress</a> for more information.' );
|
|
trigger_error( sprintf( __( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s' ), $function, $message, $version ) );
|
|
} else {
|
|
$version = is_null( $version ) ? '' : sprintf( '(This message was added in version %s.)', $version );
|
|
$message .= ' Please see <a href="http://codex.wordpress.org/Debugging_in_WordPress">Debugging in WordPress</a> for more information.';
|
|
trigger_error( sprintf( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s', $function, $message, $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 The module, e.g. mod_rewrite.
|
|
* @param bool $default Optional. The default return value if the module is not found. Default false.
|
|
* @return bool Whether the specified module is loaded.
|
|
*/
|
|
function apache_mod_loaded($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' ) && false === strpos( ini_get( 'disable_functions' ), 'phpinfo' ) ) {
|
|
ob_start();
|
|
phpinfo(8);
|
|
$phpinfo = ob_get_clean();
|
|
if ( false !== strpos($phpinfo, $mod) )
|
|
return true;
|
|
}
|
|
return $default;
|
|
}
|
|
|
|
/**
|
|
* Check if IIS 7+ supports pretty permalinks.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @return bool Whether IIS7 supports permalinks.
|
|
*/
|
|
function iis7_supports_permalinks() {
|
|
global $is_iis7;
|
|
|
|
$supports_permalinks = false;
|
|
if ( $is_iis7 ) {
|
|
/* First we check if the DOMDocument class exists. If it does not exist, then we cannot
|
|
* easily update the xml configuration file, hence we just bail out and tell user that
|
|
* pretty permalinks cannot be used.
|
|
*
|
|
* Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When
|
|
* URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'.
|
|
* Lastly we make sure that PHP is running via FastCGI. This is important because if it runs
|
|
* via ISAPI then pretty permalinks will not work.
|
|
*/
|
|
$supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' );
|
|
}
|
|
|
|
/**
|
|
* Filter whether IIS 7+ supports pretty permalinks.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @param bool $supports_permalinks Whether IIS7 supports permalinks. Default false.
|
|
*/
|
|
return apply_filters( 'iis7_supports_permalinks', $supports_permalinks );
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @see force_ssl_admin()
|
|
*
|
|
* @param string|bool $force Optional Whether to force SSL login. Default null.
|
|
* @return bool True if forced, false if not forced.
|
|
*/
|
|
function force_ssl_login( $force = null ) {
|
|
return force_ssl_admin( $force );
|
|
}
|
|
|
|
/**
|
|
* Whether to force SSL used for the Administration Screens.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param string|bool $force Optional. Whether to force SSL in admin screens. Default null.
|
|
* @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 The guessed URL.
|
|
*/
|
|
function wp_guess_url() {
|
|
if ( defined('WP_SITEURL') && '' != WP_SITEURL ) {
|
|
$url = WP_SITEURL;
|
|
} else {
|
|
$abspath_fix = str_replace( '\\', '/', ABSPATH );
|
|
$script_filename_dir = dirname( $_SERVER['SCRIPT_FILENAME'] );
|
|
|
|
// The request is for the admin
|
|
if ( strpos( $_SERVER['REQUEST_URI'], 'wp-admin' ) !== false || strpos( $_SERVER['REQUEST_URI'], 'wp-login.php' ) !== false ) {
|
|
$path = preg_replace( '#/(wp-admin/.*|wp-login.php)#i', '', $_SERVER['REQUEST_URI'] );
|
|
|
|
// The request is for a file in ABSPATH
|
|
} elseif ( $script_filename_dir . '/' == $abspath_fix ) {
|
|
// Strip off any file/query params in the path
|
|
$path = preg_replace( '#/[^/]*$#i', '', $_SERVER['PHP_SELF'] );
|
|
|
|
} else {
|
|
if ( false !== strpos( $_SERVER['SCRIPT_FILENAME'], $abspath_fix ) ) {
|
|
// Request is hitting a file inside ABSPATH
|
|
$directory = str_replace( ABSPATH, '', $script_filename_dir );
|
|
// Strip off the sub directory, and any file/query paramss
|
|
$path = preg_replace( '#/' . preg_quote( $directory, '#' ) . '/[^/]*$#i', '' , $_SERVER['REQUEST_URI'] );
|
|
} elseif ( false !== strpos( $abspath_fix, $script_filename_dir ) ) {
|
|
// Request is hitting a file above ABSPATH
|
|
$subdirectory = substr( $abspath_fix, strpos( $abspath_fix, $script_filename_dir ) + strlen( $script_filename_dir ) );
|
|
// Strip off any file/query params from the path, appending the sub directory to the install
|
|
$path = preg_replace( '#/[^/]*$#i', '' , $_SERVER['REQUEST_URI'] ) . $subdirectory;
|
|
} else {
|
|
$path = $_SERVER['REQUEST_URI'];
|
|
}
|
|
}
|
|
|
|
$schema = is_ssl() ? 'https://' : 'http://'; // set_url_scheme() is not defined yet
|
|
$url = $schema . $_SERVER['HTTP_HOST'] . $path;
|
|
}
|
|
|
|
return rtrim($url, '/');
|
|
}
|
|
|
|
/**
|
|
* Temporarily suspend cache additions.
|
|
*
|
|
* Stops more data being added to the cache, but still allows cache retrieval.
|
|
* This is useful for actions, such as imports, when a lot of data would otherwise
|
|
* be almost uselessly added to the cache.
|
|
*
|
|
* Suspension lasts for a single page load at most. Remember to call this
|
|
* function again if you wish to re-enable cache adds earlier.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @param bool $suspend Optional. Suspends additions if true, re-enables them if false.
|
|
* @return bool The current suspend setting
|
|
*/
|
|
function wp_suspend_cache_addition( $suspend = null ) {
|
|
static $_suspend = false;
|
|
|
|
if ( is_bool( $suspend ) )
|
|
$_suspend = $suspend;
|
|
|
|
return $_suspend;
|
|
}
|
|
|
|
/**
|
|
* 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 Optional. Whether to suspend or enable cache invalidation. Default true.
|
|
* @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;
|
|
}
|
|
|
|
/**
|
|
* Determine whether a site is the main site of the current network.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param int $site_id Optional. Site ID to test. Defaults to current site.
|
|
* Defaults to current site.
|
|
* @return bool True if $site_id is the main site of the network, or if not
|
|
* running Multisite.
|
|
*/
|
|
function is_main_site( $site_id = null ) {
|
|
// This is the current network's information; 'site' is old terminology.
|
|
global $current_site;
|
|
|
|
if ( ! is_multisite() )
|
|
return true;
|
|
|
|
if ( ! $site_id )
|
|
$site_id = get_current_blog_id();
|
|
|
|
return (int) $site_id === (int) $current_site->blog_id;
|
|
}
|
|
|
|
/**
|
|
* Determine whether a network is the main network of the Multisite install.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @param int $network_id Optional. Network ID to test. Defaults to current network.
|
|
* @return bool True if $network_id is the main network, or if not running Multisite.
|
|
*/
|
|
function is_main_network( $network_id = null ) {
|
|
global $wpdb;
|
|
|
|
if ( ! is_multisite() )
|
|
return true;
|
|
|
|
$current_network_id = (int) get_current_site()->id;
|
|
|
|
if ( ! $network_id )
|
|
$network_id = $current_network_id;
|
|
$network_id = (int) $network_id;
|
|
|
|
if ( defined( 'PRIMARY_NETWORK_ID' ) )
|
|
return $network_id === (int) PRIMARY_NETWORK_ID;
|
|
|
|
if ( 1 === $current_network_id )
|
|
return $network_id === $current_network_id;
|
|
|
|
$primary_network_id = (int) wp_cache_get( 'primary_network_id', 'site-options' );
|
|
|
|
if ( $primary_network_id )
|
|
return $network_id === $primary_network_id;
|
|
|
|
$primary_network_id = (int) $wpdb->get_var( "SELECT id FROM $wpdb->site ORDER BY id LIMIT 1" );
|
|
wp_cache_add( 'primary_network_id', $primary_network_id, 'site-options' );
|
|
|
|
return $network_id === $primary_network_id;
|
|
}
|
|
|
|
/**
|
|
* Determine whether global terms are enabled.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @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 whether global terms are enabled.
|
|
*
|
|
* Passing a non-null value to the filter will effectively short-circuit the function,
|
|
* returning the value of the 'global_terms_enabled' site option instead.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param null $anbled Whether global terms are enabled.
|
|
*/
|
|
$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 $global_terms;
|
|
}
|
|
|
|
/**
|
|
* gmt_offset modification for smart timezone handling.
|
|
*
|
|
* Overrides the gmt_offset option if we have a timezone_string available.
|
|
*
|
|
* @since 2.8.0
|
|
*
|
|
* @return float|bool Timezone GMT offset, false otherwise.
|
|
*/
|
|
function wp_timezone_override_offset() {
|
|
if ( !$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 ) / HOUR_IN_SECONDS, 2 );
|
|
}
|
|
|
|
/**
|
|
* Sort-helper for timezones.
|
|
*
|
|
* @since 2.9.0
|
|
* @access private
|
|
*
|
|
* @param array $a
|
|
* @param array $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.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param string $selected_zone Selected timezone.
|
|
* @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.
|
|
*
|
|
* @since 2.8.0
|
|
* @access private
|
|
*
|
|
* @see https://core.trac.wordpress.org/ticket/8497
|
|
*
|
|
* @param string $str Header comment to clean up.
|
|
* @return string
|
|
*/
|
|
function _cleanup_header_comment( $str ) {
|
|
return trim(preg_replace("/\s*(?:\*\/|\?>).*/", '', $str));
|
|
}
|
|
|
|
/**
|
|
* Permanently delete 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() - ( DAY_IN_SECONDS * 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);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Retrieve metadata from a file.
|
|
*
|
|
* Searches for metadata in the first 8kiB of a file, such as a plugin or theme.
|
|
* Each piece of metadata must be on its own line. Fields can not span multiple
|
|
* lines, the value will get cut at the end of the first line.
|
|
*
|
|
* 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.
|
|
*
|
|
* @see http://codex.wordpress.org/File_Header
|
|
*
|
|
* @since 2.9.0
|
|
* @param string $file Path to the file.
|
|
* @param array $default_headers List of headers, in the format array('HeaderKey' => 'Header Name').
|
|
* @param string $context Optional. If specified adds filter hook "extra_{$context}_headers".
|
|
* Default empty.
|
|
*/
|
|
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 );
|
|
|
|
// Make sure we catch CR-only line endings.
|
|
$file_data = str_replace( "\r", "\n", $file_data );
|
|
|
|
/**
|
|
* Filter extra file headers by context.
|
|
*
|
|
* The dynamic portion of the hook name, $context, refers to the context
|
|
* where extra headers might be loaded.
|
|
*
|
|
* @since 2.9.0
|
|
*
|
|
* @param array $extra_context_headers Empty array by default.
|
|
*/
|
|
if ( $context && $extra_headers = apply_filters( "extra_{$context}_headers", array() ) ) {
|
|
$extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values
|
|
$all_headers = array_merge( $extra_headers, (array) $default_headers );
|
|
} else {
|
|
$all_headers = $default_headers;
|
|
}
|
|
|
|
foreach ( $all_headers as $field => $regex ) {
|
|
if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] )
|
|
$all_headers[ $field ] = _cleanup_header_comment( $match[1] );
|
|
else
|
|
$all_headers[ $field ] = '';
|
|
}
|
|
|
|
return $all_headers;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*
|
|
* @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
|
|
*
|
|
* @return array Empty array.
|
|
*/
|
|
function __return_empty_array() {
|
|
return array();
|
|
}
|
|
|
|
/**
|
|
* Returns null.
|
|
*
|
|
* Useful for returning null to filters easily.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @return null Null value.
|
|
*/
|
|
function __return_null() {
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Returns an empty string.
|
|
*
|
|
* Useful for returning an empty string to filters easily.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @see __return_null()
|
|
*
|
|
* @return string Empty string.
|
|
*/
|
|
function __return_empty_string() {
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Send a HTTP header to disable content type sniffing in browsers which support it.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @see http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx
|
|
* @see http://src.chromium.org/viewvc/chrome?view=rev&revision=6985
|
|
*/
|
|
function send_nosniff_header() {
|
|
@header( 'X-Content-Type-Options: nosniff' );
|
|
}
|
|
|
|
/**
|
|
* Return a MySQL expression for selecting the week number based on the start_of_week option.
|
|
*
|
|
* @internal
|
|
* @since 3.0.0
|
|
*
|
|
* @param string $column Database column.
|
|
* @return string SQL clause.
|
|
*/
|
|
function _wp_mysql_week( $column ) {
|
|
switch ( $start_of_week = (int) get_option( 'start_of_week' ) ) {
|
|
case 1 :
|
|
return "WEEK( $column, 1 )";
|
|
case 2 :
|
|
case 3 :
|
|
case 4 :
|
|
case 5 :
|
|
case 6 :
|
|
return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )";
|
|
case 0 :
|
|
default :
|
|
return "WEEK( $column, 0 )";
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Find hierarchy loops using a callback function that maps object IDs to parent IDs.
|
|
*
|
|
* @since 3.1.0
|
|
* @access private
|
|
*
|
|
* @param callback $callback Function that accepts ( ID, $callback_args ) and outputs parent_ID.
|
|
* @param int $start The ID to start the loop check at.
|
|
* @param int $start_parent The parent_ID of $start to use instead of calling $callback( $start ).
|
|
* Use null to always use $callback
|
|
* @param array $callback_args Optional. Additional arguments to send to $callback.
|
|
* @return array IDs of all members of loop.
|
|
*/
|
|
function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) {
|
|
$override = is_null( $start_parent ) ? array() : array( $start => $start_parent );
|
|
|
|
if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) )
|
|
return array();
|
|
|
|
return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true );
|
|
}
|
|
|
|
/**
|
|
* Use the "The Tortoise and the Hare" algorithm to detect loops.
|
|
*
|
|
* For every step of the algorithm, the hare takes two steps and the tortoise one.
|
|
* If the hare ever laps the tortoise, there must be a loop.
|
|
*
|
|
* @since 3.1.0
|
|
* @access private
|
|
*
|
|
* @param callback $callback Function that accepts ( ID, callback_arg, ... ) and outputs parent_ID.
|
|
* @param int $start The ID to start the loop check at.
|
|
* @param array $override Optional. An array of ( ID => parent_ID, ... ) to use instead of $callback.
|
|
* Default empty array.
|
|
* @param array $callback_args Optional. Additional arguments to send to $callback. Default empty array.
|
|
* @param bool $_return_loop Optional. Return loop members or just detect presence of loop? Only set
|
|
* to true if you already know the given $start is part of a loop (otherwise
|
|
* the returned array might include branches). Default false.
|
|
* @return mixed Scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if
|
|
* $_return_loop
|
|
*/
|
|
function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) {
|
|
$tortoise = $hare = $evanescent_hare = $start;
|
|
$return = array();
|
|
|
|
// Set evanescent_hare to one past hare
|
|
// Increment hare two steps
|
|
while (
|
|
$tortoise
|
|
&&
|
|
( $evanescent_hare = isset( $override[$hare] ) ? $override[$hare] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) )
|
|
&&
|
|
( $hare = isset( $override[$evanescent_hare] ) ? $override[$evanescent_hare] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) )
|
|
) {
|
|
if ( $_return_loop )
|
|
$return[$tortoise] = $return[$evanescent_hare] = $return[$hare] = true;
|
|
|
|
// tortoise got lapped - must be a loop
|
|
if ( $tortoise == $evanescent_hare || $tortoise == $hare )
|
|
return $_return_loop ? $return : $tortoise;
|
|
|
|
// Increment tortoise by one step
|
|
$tortoise = isset( $override[$tortoise] ) ? $override[$tortoise] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) );
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Send a HTTP header to limit rendering of pages to same origin iframes.
|
|
*
|
|
* @since 3.1.3
|
|
*
|
|
* @see https://developer.mozilla.org/en/the_x-frame-options_response_header
|
|
*/
|
|
function send_frame_options_header() {
|
|
@header( 'X-Frame-Options: SAMEORIGIN' );
|
|
}
|
|
|
|
/**
|
|
* Retrieve a list of protocols to allow in HTML attributes.
|
|
*
|
|
* @since 3.3.0
|
|
*
|
|
* @see wp_kses()
|
|
* @see esc_url()
|
|
*
|
|
* @return array Array of allowed protocols.
|
|
*/
|
|
function wp_allowed_protocols() {
|
|
static $protocols;
|
|
|
|
if ( empty( $protocols ) ) {
|
|
$protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn', 'tel', 'fax', 'xmpp' );
|
|
|
|
/**
|
|
* Filter the list of protocols allowed in HTML attributes.
|
|
*
|
|
* @since 3.0.0
|
|
*
|
|
* @param array $protocols Array of allowed protocols e.g. 'http', 'ftp', 'tel', and more.
|
|
*/
|
|
$protocols = apply_filters( 'kses_allowed_protocols', $protocols );
|
|
}
|
|
|
|
return $protocols;
|
|
}
|
|
|
|
/**
|
|
* Return a comma-separated string of functions that have been called to get
|
|
* to the current point in code.
|
|
*
|
|
* @since 3.4.0
|
|
*
|
|
* @see https://core.trac.wordpress.org/ticket/19589
|
|
*
|
|
* @param string $ignore_class Optional. A class to ignore all function calls within - useful
|
|
* when you want to just give info about the callee. Default null.
|
|
* @param int $skip_frames Optional. A number of stack frames to skip - useful for unwinding
|
|
* back to the source of the issue. Default 0.
|
|
* @param bool $pretty Optional. Whether or not you want a comma separated string or raw
|
|
* array returned. Default true.
|
|
* @return string|array Either a string containing a reversed comma separated trace or an array
|
|
* of individual calls.
|
|
*/
|
|
function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pretty = true ) {
|
|
if ( version_compare( PHP_VERSION, '5.2.5', '>=' ) )
|
|
$trace = debug_backtrace( false );
|
|
else
|
|
$trace = debug_backtrace();
|
|
|
|
$caller = array();
|
|
$check_class = ! is_null( $ignore_class );
|
|
$skip_frames++; // skip this function
|
|
|
|
foreach ( $trace as $call ) {
|
|
if ( $skip_frames > 0 ) {
|
|
$skip_frames--;
|
|
} elseif ( isset( $call['class'] ) ) {
|
|
if ( $check_class && $ignore_class == $call['class'] )
|
|
continue; // Filter out calls
|
|
|
|
$caller[] = "{$call['class']}{$call['type']}{$call['function']}";
|
|
} else {
|
|
if ( in_array( $call['function'], array( 'do_action', 'apply_filters' ) ) ) {
|
|
$caller[] = "{$call['function']}('{$call['args'][0]}')";
|
|
} elseif ( in_array( $call['function'], array( 'include', 'include_once', 'require', 'require_once' ) ) ) {
|
|
$caller[] = $call['function'] . "('" . str_replace( array( WP_CONTENT_DIR, ABSPATH ) , '', $call['args'][0] ) . "')";
|
|
} else {
|
|
$caller[] = $call['function'];
|
|
}
|
|
}
|
|
}
|
|
if ( $pretty )
|
|
return join( ', ', array_reverse( $caller ) );
|
|
else
|
|
return $caller;
|
|
}
|
|
|
|
/**
|
|
* Retrieve ids that are not already present in the cache.
|
|
*
|
|
* @since 3.4.0
|
|
* @access private
|
|
*
|
|
* @param array $object_ids ID list.
|
|
* @param string $cache_key The cache bucket to check against.
|
|
*
|
|
* @return array List of ids not present in the cache.
|
|
*/
|
|
function _get_non_cached_ids( $object_ids, $cache_key ) {
|
|
$clean = array();
|
|
foreach ( $object_ids as $id ) {
|
|
$id = (int) $id;
|
|
if ( !wp_cache_get( $id, $cache_key ) ) {
|
|
$clean[] = $id;
|
|
}
|
|
}
|
|
|
|
return $clean;
|
|
}
|
|
|
|
/**
|
|
* Test if the current device has the capability to upload files.
|
|
*
|
|
* @since 3.4.0
|
|
* @access private
|
|
*
|
|
* @return bool true|false Whether the device is able to upload files.
|
|
*/
|
|
function _device_can_upload() {
|
|
if ( ! wp_is_mobile() )
|
|
return true;
|
|
|
|
$ua = $_SERVER['HTTP_USER_AGENT'];
|
|
|
|
if ( strpos($ua, 'iPhone') !== false
|
|
|| strpos($ua, 'iPad') !== false
|
|
|| strpos($ua, 'iPod') !== false ) {
|
|
return preg_match( '#OS ([\d_]+) like Mac OS X#', $ua, $version ) && version_compare( $version[1], '6', '>=' );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Test if a given path is a stream URL
|
|
*
|
|
* @param string $path The resource path or URL.
|
|
* @return bool True if the path is a stream URL.
|
|
*/
|
|
function wp_is_stream( $path ) {
|
|
$wrappers = stream_get_wrappers();
|
|
$wrappers_re = '(' . join('|', $wrappers) . ')';
|
|
|
|
return preg_match( "!^$wrappers_re://!", $path ) === 1;
|
|
}
|
|
|
|
/**
|
|
* Test if the supplied date is valid for the Gregorian calendar.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @see checkdate()
|
|
*
|
|
* @param int $month Month number.
|
|
* @param int $day Day number.
|
|
* @param int $year Year number.
|
|
* @param string $source_date The date to filter.
|
|
* @return bool True if valid date, false if not valid date.
|
|
*/
|
|
function wp_checkdate( $month, $day, $year, $source_date ) {
|
|
/**
|
|
* Filter whether the given date is valid for the Gregorian calendar.
|
|
*
|
|
* @since 3.5.0
|
|
*
|
|
* @param bool $checkdate Whether the given date is valid.
|
|
* @param string $source_date Date to check.
|
|
*/
|
|
return apply_filters( 'wp_checkdate', checkdate( $month, $day, $year ), $source_date );
|
|
}
|
|
|
|
/**
|
|
* Load the auth check for monitoring whether the user is still logged in.
|
|
*
|
|
* Can be disabled with remove_action( 'admin_enqueue_scripts', 'wp_auth_check_load' );
|
|
*
|
|
* This is disabled for certain screens where a login screen could cause an
|
|
* inconvenient interruption. A filter called wp_auth_check_load can be used
|
|
* for fine-grained control.
|
|
*
|
|
* @since 3.6.0
|
|
*/
|
|
function wp_auth_check_load() {
|
|
if ( ! is_admin() && ! is_user_logged_in() )
|
|
return;
|
|
|
|
if ( defined( 'IFRAME_REQUEST' ) )
|
|
return;
|
|
|
|
$screen = get_current_screen();
|
|
$hidden = array( 'update', 'update-network', 'update-core', 'update-core-network', 'upgrade', 'upgrade-network', 'network' );
|
|
$show = ! in_array( $screen->id, $hidden );
|
|
|
|
/**
|
|
* Filter whether to load the authentication check.
|
|
*
|
|
* Passing a falsey value to the filter will effectively short-circuit
|
|
* loading the authentication check.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param bool $show Whether to load the authentication check.
|
|
* @param WP_Screen $screen The current screen object.
|
|
*/
|
|
if ( apply_filters( 'wp_auth_check_load', $show, $screen ) ) {
|
|
wp_enqueue_style( 'wp-auth-check' );
|
|
wp_enqueue_script( 'wp-auth-check' );
|
|
|
|
add_action( 'admin_print_footer_scripts', 'wp_auth_check_html', 5 );
|
|
add_action( 'wp_print_footer_scripts', 'wp_auth_check_html', 5 );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Output the HTML that shows the wp-login dialog when the user is no longer logged in.
|
|
*
|
|
* @since 3.6.0
|
|
*/
|
|
function wp_auth_check_html() {
|
|
$login_url = wp_login_url();
|
|
$current_domain = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST'];
|
|
$same_domain = ( strpos( $login_url, $current_domain ) === 0 );
|
|
|
|
/**
|
|
* Filter whether the authentication check originated at the same domain.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param bool $same_domain Whether the authentication check originated at the same domain.
|
|
*/
|
|
$same_domain = apply_filters( 'wp_auth_check_same_domain', $same_domain );
|
|
$wrap_class = $same_domain ? 'hidden' : 'hidden fallback';
|
|
|
|
?>
|
|
<div id="wp-auth-check-wrap" class="<?php echo $wrap_class; ?>">
|
|
<div id="wp-auth-check-bg"></div>
|
|
<div id="wp-auth-check">
|
|
<div class="wp-auth-check-close" tabindex="0" title="<?php esc_attr_e('Close'); ?>"></div>
|
|
<?php
|
|
|
|
if ( $same_domain ) {
|
|
?>
|
|
<div id="wp-auth-check-form" data-src="<?php echo esc_url( add_query_arg( array( 'interim-login' => 1 ), $login_url ) ); ?>"></div>
|
|
<?php
|
|
}
|
|
|
|
?>
|
|
<div class="wp-auth-fallback">
|
|
<p><b class="wp-auth-fallback-expired" tabindex="0"><?php _e('Session expired'); ?></b></p>
|
|
<p><a href="<?php echo esc_url( $login_url ); ?>" target="_blank"><?php _e('Please log in again.'); ?></a>
|
|
<?php _e('The login page will open in a new window. After logging in you can close it and return to this page.'); ?></p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<?php
|
|
}
|
|
|
|
/**
|
|
* Check whether a user is still logged in, for the heartbeat.
|
|
*
|
|
* Send a result that shows a log-in box if the user is no longer logged in,
|
|
* or if their cookie is within the grace period.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param array|object $response The Heartbeat response object or array.
|
|
* @return array|object $response The Heartbeat response object or array with 'wp-auth-check'
|
|
* value set.
|
|
*/
|
|
function wp_auth_check( $response ) {
|
|
$response['wp-auth-check'] = is_user_logged_in() && empty( $GLOBALS['login_grace_period'] );
|
|
return $response;
|
|
}
|
|
|
|
/**
|
|
* Return RegEx body to liberally match an opening HTML tag.
|
|
*
|
|
* Matches an opening HTML tag that:
|
|
* 1. Is self-closing or
|
|
* 2. Has no body but has a closing tag of the same name or
|
|
* 3. Contains a body and a closing tag of the same name
|
|
*
|
|
* Note: this RegEx does not balance inner tags and does not attempt
|
|
* to produce valid HTML
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param string $tag An HTML tag name. Example: 'video'.
|
|
* @return string Tag RegEx.
|
|
*/
|
|
function get_tag_regex( $tag ) {
|
|
if ( empty( $tag ) )
|
|
return;
|
|
return sprintf( '<%1$s[^<]*(?:>[\s\S]*<\/%1$s>|\s*\/>)', tag_escape( $tag ) );
|
|
}
|
|
|
|
/**
|
|
* Retrieve a canonical form of the provided charset appropriate for passing to PHP
|
|
* functions such as htmlspecialchars() and charset html attributes.
|
|
*
|
|
* @since 3.6.0
|
|
* @access private
|
|
*
|
|
* @see https://core.trac.wordpress.org/ticket/23688
|
|
*
|
|
* @param string $charset A charset name.
|
|
* @return string The canonical form of the charset.
|
|
*/
|
|
function _canonical_charset( $charset ) {
|
|
if ( 'UTF-8' === $charset || 'utf-8' === $charset || 'utf8' === $charset ||
|
|
'UTF8' === $charset )
|
|
return 'UTF-8';
|
|
|
|
if ( 'ISO-8859-1' === $charset || 'iso-8859-1' === $charset ||
|
|
'iso8859-1' === $charset || 'ISO8859-1' === $charset )
|
|
return 'ISO-8859-1';
|
|
|
|
return $charset;
|
|
}
|
|
|
|
/**
|
|
* Set the mbstring internal encoding to a binary safe encoding when func_overload
|
|
* is enabled.
|
|
*
|
|
* When mbstring.func_overload is in use for multi-byte encodings, the results from
|
|
* strlen() and similar functions respect the utf8 characters, causing binary data
|
|
* to return incorrect lengths.
|
|
*
|
|
* This function overrides the mbstring encoding to a binary-safe encoding, and
|
|
* resets it to the users expected encoding afterwards through the
|
|
* `reset_mbstring_encoding` function.
|
|
*
|
|
* It is safe to recursively call this function, however each
|
|
* `mbstring_binary_safe_encoding()` call must be followed up with an equal number
|
|
* of `reset_mbstring_encoding()` calls.
|
|
*
|
|
* @since 3.7.0
|
|
*
|
|
* @see reset_mbstring_encoding()
|
|
*
|
|
* @param bool $reset Optional. Whether to reset the encoding back to a previously-set encoding.
|
|
* Default false.
|
|
*/
|
|
function mbstring_binary_safe_encoding( $reset = false ) {
|
|
static $encodings = array();
|
|
static $overloaded = null;
|
|
|
|
if ( is_null( $overloaded ) )
|
|
$overloaded = function_exists( 'mb_internal_encoding' ) && ( ini_get( 'mbstring.func_overload' ) & 2 );
|
|
|
|
if ( false === $overloaded )
|
|
return;
|
|
|
|
if ( ! $reset ) {
|
|
$encoding = mb_internal_encoding();
|
|
array_push( $encodings, $encoding );
|
|
mb_internal_encoding( 'ISO-8859-1' );
|
|
}
|
|
|
|
if ( $reset && $encodings ) {
|
|
$encoding = array_pop( $encodings );
|
|
mb_internal_encoding( $encoding );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reset the mbstring internal encoding to a users previously set encoding.
|
|
*
|
|
* @see mbstring_binary_safe_encoding()
|
|
*
|
|
* @since 3.7.0
|
|
*/
|
|
function reset_mbstring_encoding() {
|
|
mbstring_binary_safe_encoding( true );
|
|
}
|
|
|
|
/**
|
|
* Alternative to filter_var( $var, FILTER_VALIDATE_BOOLEAN ).
|
|
*
|
|
* @since 4.0.0
|
|
*
|
|
* @param mixed $var Boolean value to validate.
|
|
* @return bool Whether the value is validated.
|
|
*/
|
|
function wp_validate_boolean( $var ) {
|
|
if ( is_bool( $var ) ) {
|
|
return $var;
|
|
}
|
|
|
|
if ( 'false' === $var ) {
|
|
return false;
|
|
}
|
|
|
|
return (bool) $var;
|
|
}
|