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< ? php
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/**
* Main WordPress API
*
* @ package WordPress
*/
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require ( ABSPATH . WPINC . '/option.php' );
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/**
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* Converts 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
* timestamp , or 'G' for a Unix timestamp assuming that $date is GMT .
*
* If $translate is true then the given date and format string will
* be passed to date_i18n () for translation .
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*
* @ since 0.71
*
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* @ param string $format Format of the date to return .
* @ param string $date Date string to convert .
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* @ param bool $translate Whether the return date should be translated . Default is true .
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* @ return string | int Formatted date string , or Unix timestamp .
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*/
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function mysql2date ( $format , $date , $translate = true ) {
if ( empty ( $date ) )
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return false ;
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if ( 'G' == $format )
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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/**
* Retrieve the current time based on specified type .
*
* The 'mysql' type will return the time in the format for MySQL DATETIME field .
* The 'timestamp' type will return the current timestamp .
*
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* If $gmt is set to either '1' or 'true' , then both types will use GMT time .
* if $gmt is false , the output is adjusted with the GMT offset in the WordPress option .
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*
* @ since 1.0 . 0
*
* @ param string $type Either 'mysql' or 'timestamp' .
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* @ param int | bool $gmt Optional . Whether to use GMT timezone . Default is false .
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* @ return int | string String if $type is 'gmt' , int if $type is 'timestamp' .
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*/
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function current_time ( $type , $gmt = 0 ) {
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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break ;
case 'timestamp' :
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return ( $gmt ) ? time () : time () + ( get_option ( 'gmt_offset' ) * HOUR_IN_SECONDS );
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break ;
}
}
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/**
* Retrieve the date in localized format , based on timestamp .
*
* If the locale specifies the locale month and weekday , then the locale will
* take over the format for the date . If it isn ' t , then the date format string
* will be used instead .
*
* @ since 0.71
*
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* @ param string $dateformatstring Format to display the date .
* @ param int $unixtimestamp Optional . Unix timestamp .
* @ param bool $gmt Optional , default is false . Whether to convert to GMT for time .
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* @ return string The date , translated if locale specifies it .
*/
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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 ) {
if ( ! $gmt )
$i = current_time ( 'timestamp' );
else
$i = time ();
// we should not let date() interfere with our
// specially computed timestamp
$gmt = true ;
}
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// store original value for language with untypical grammars
// see http://core.trac.wordpress.org/ticket/9396
$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 ) );
$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 );
$dateformatstring = preg_replace ( " /([^ \\ \ ])F/ " , " \\ 1 " . backslashit ( $datemonth ), $dateformatstring );
$dateformatstring = preg_replace ( " /([^ \\ \ ])l/ " , " \\ 1 " . backslashit ( $dateweekday ), $dateformatstring );
$dateformatstring = preg_replace ( " /([^ \\ \ ])M/ " , " \\ 1 " . backslashit ( $datemonth_abbrev ), $dateformatstring );
$dateformatstring = preg_replace ( " /([^ \\ \ ])a/ " , " \\ 1 " . backslashit ( $datemeridiem ), $dateformatstring );
$dateformatstring = preg_replace ( " /([^ \\ \ ])A/ " , " \\ 1 " . backslashit ( $datemeridiem_capital ), $dateformatstring );
$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' );
if ( $timezone_string ) {
$timezone_object = timezone_open ( $timezone_string );
$date_object = date_create ( null , $timezone_object );
foreach ( $timezone_formats as $timezone_format ) {
if ( false !== strpos ( $dateformatstring , $timezone_format ) ) {
$formatted = date_format ( $date_object , $timezone_format );
$dateformatstring = ' ' . $dateformatstring ;
$dateformatstring = preg_replace ( " /([^ \\ \ ]) $timezone_format / " , " \\ 1 " . backslashit ( $formatted ), $dateformatstring );
$dateformatstring = substr ( $dateformatstring , 1 , strlen ( $dateformatstring ) - 1 );
}
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}
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}
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}
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$j = @ $datefunc ( $dateformatstring , $i );
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// allow plugins to redo this entirely for languages with untypical grammars
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$j = apply_filters ( 'date_i18n' , $j , $req_format , $i , $gmt );
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return $j ;
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}
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/**
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* Convert integer number to format based on the locale .
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*
* @ since 2.3 . 0
*
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* @ param int $number The number to convert based on locale .
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* @ param int $decimals Precision of the number of decimal places .
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* @ return string Converted number in string format .
*/
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function number_format_i18n ( $number , $decimals = 0 ) {
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global $wp_locale ;
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$formatted = number_format ( $number , absint ( $decimals ), $wp_locale -> number_format [ 'decimal_point' ], $wp_locale -> number_format [ 'thousands_sep' ] );
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return apply_filters ( 'number_format_i18n' , $formatted );
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}
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/**
* Convert number of bytes largest unit bytes will fit into .
*
* It is easier to read 1 kB than 1024 bytes and 1 MB than 1048576 bytes . Converts
* number of bytes to human readable number by taking the number of that unit
* that the bytes will go into it . Supports TB value .
*
* Please note that integers in PHP are limited to 32 bits , unless they are on
* 64 bit architecture , then they have 64 bit size . If you need to place the
* larger size then what PHP integer type will hold , then use a string . It will
* be converted to a double , which should always have 64 bit length .
*
* Technically the correct unit names for powers of 1024 are KiB , MiB etc .
* @ link http :// en . wikipedia . org / wiki / Byte
*
* @ since 2.3 . 0
*
* @ param int | string $bytes Number of bytes . Note max integer size for integers .
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* @ param int $decimals Precision of number of decimal places . Deprecated .
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* @ return bool | string False on failure . Number string on success .
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*/
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function size_format ( $bytes , $decimals = 0 ) {
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$quant = array (
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// ========================= Origin ====
'TB' => 1099511627776 , // pow( 1024, 4)
'GB' => 1073741824 , // pow( 1024, 3)
'MB' => 1048576 , // pow( 1024, 2)
'kB' => 1024 , // pow( 1024, 1)
'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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/**
* Get the week start and end from the datetime or date string from mysql .
*
* @ since 0.71
*
* @ param string $mysqlstring Date or datetime field type from mysql .
* @ param int $start_of_week Optional . Start of the week as an integer .
* @ return array Keys are 'start' and 'end' .
*/
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function get_weekstartend ( $mysqlstring , $start_of_week = '' ) {
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$my = substr ( $mysqlstring , 0 , 4 ); // Mysql string Year
$mm = substr ( $mysqlstring , 8 , 2 ); // Mysql string Month
$md = substr ( $mysqlstring , 5 , 2 ); // Mysql string day
$day = mktime ( 0 , 0 , 0 , $md , $mm , $my ); // The timestamp for mysqlstring day.
$weekday = date ( 'w' , $day ); // The day of the week from the timestamp
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if ( ! is_numeric ( $start_of_week ) )
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$start_of_week = get_option ( 'start_of_week' );
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if ( $weekday < $start_of_week )
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$weekday += 7 ;
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$start = $day - DAY_IN_SECONDS * ( $weekday - $start_of_week ); // The most recent week start day on or before $day
$end = $start + 7 * DAY_IN_SECONDS - 1 ; // $start + 7 days - 1 second
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return compact ( 'start' , 'end' );
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}
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/**
* Unserialize value only if it was serialized .
*
* @ since 2.0 . 0
*
* @ param string $original Maybe unserialized original , if is needed .
* @ return mixed Unserialized data can be any type .
*/
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function maybe_unserialize ( $original ) {
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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/**
* Check value to find if it was serialized .
*
* If $data is not an string , then returned value will always be false .
* Serialized data is always a string .
*
* @ since 2.0 . 5
*
* @ param mixed $data Value to check to see if was serialized .
* @ return bool False if not serialized and true if it was .
*/
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function is_serialized ( $data ) {
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// if it isn't a string, it isn't serialized
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if ( ! is_string ( $data ) )
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return false ;
$data = trim ( $data );
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if ( 'N;' == $data )
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return true ;
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$length = strlen ( $data );
if ( $length < 4 )
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return false ;
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if ( ':' !== $data [ 1 ] )
return false ;
$lastc = $data [ $length - 1 ];
if ( ';' !== $lastc && '}' !== $lastc )
return false ;
$token = $data [ 0 ];
switch ( $token ) {
case 's' :
if ( '"' !== $data [ $length - 2 ] )
return false ;
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case 'a' :
case 'O' :
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return ( bool ) preg_match ( " /^ { $token } :[0-9]+:/s " , $data );
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case 'b' :
case 'i' :
case 'd' :
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return ( bool ) preg_match ( " /^ { $token } :[0-9.E-]+; \$ / " , $data );
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}
return false ;
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}
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/**
* Check whether serialized data is of string type .
*
* @ since 2.0 . 5
*
* @ param mixed $data Serialized data
* @ return bool False if not a serialized string , true if it is .
*/
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function is_serialized_string ( $data ) {
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// if it isn't a string, it isn't a serialized string
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if ( ! is_string ( $data ) )
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return false ;
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$data = trim ( $data );
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$length = strlen ( $data );
if ( $length < 4 )
return false ;
elseif ( ':' !== $data [ 1 ] )
return false ;
elseif ( ';' !== $data [ $length - 1 ] )
return false ;
elseif ( $data [ 0 ] !== 's' )
return false ;
elseif ( '"' !== $data [ $length - 2 ] )
return false ;
else
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return true ;
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}
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/**
* Serialize data , if needed .
*
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* @ since 2.0 . 5
*
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* @ param mixed $data Data that might be serialized .
* @ return mixed A scalar data
*/
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function maybe_serialize ( $data ) {
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if ( is_array ( $data ) || is_object ( $data ) )
return serialize ( $data );
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// Double serialization is required for backward compatibility.
// See http://core.trac.wordpress.org/ticket/12930
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if ( is_serialized ( $data ) )
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return serialize ( $data );
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return $data ;
}
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/**
* Retrieve post title from XMLRPC XML .
*
* If the title element is not part of the XML , then the default post title from
* the $post_default_title will be used instead .
*
* @ package WordPress
* @ subpackage XMLRPC
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* @ since 0.71
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*
* @ global string $post_default_title Default XMLRPC post title .
*
* @ param string $content XMLRPC XML Request content
* @ return string Post title
*/
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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 {
$post_title = $post_default_title ;
}
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return $post_title ;
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}
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/**
* Retrieve the post category or categories from XMLRPC XML .
*
* If the category element is not found , then the default post category will be
* used . The return type then would be what $post_default_category . If the
* category is found , then it will always be an array .
*
* @ package WordPress
* @ subpackage XMLRPC
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* @ since 0.71
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*
* @ global string $post_default_category Default XMLRPC post category .
*
* @ param string $content XMLRPC XML Request content
* @ return string | array List of categories or category name .
*/
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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 ) ) {
$post_category = trim ( $matchcat [ 1 ], ',' );
$post_category = explode ( ',' , $post_category );
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} else {
$post_category = $post_default_category ;
}
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return $post_category ;
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}
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/**
* XMLRPC XML content without title and category elements .
*
* @ package WordPress
* @ subpackage XMLRPC
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* @ since 0.71
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*
* @ param string $content XMLRPC XML Request content
* @ return string XMLRPC XML Request content without title and category elements .
*/
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function xmlrpc_removepostdata ( $content ) {
$content = preg_replace ( '/<title>(.+?)<\/title>/si' , '' , $content );
$content = preg_replace ( '/<category>(.+?)<\/category>/si' , '' , $content );
$content = trim ( $content );
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return $content ;
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}
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/**
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* Check content for video and audio links to add as enclosures .
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*
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* Will not add enclosures that have already been added and will
* remove enclosures that are no longer in the post . This is called as
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* pingbacks and trackbacks .
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*
* @ package WordPress
* @ since 1.5 . 0
*
* @ uses $wpdb
*
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* @ param string $content Post Content
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* @ param int $post_ID Post ID
*/
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function do_enclose ( $content , $post_ID ) {
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global $wpdb ;
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//TODO: Tidy this ghetto code up and make the debug code optional
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include_once ( ABSPATH . WPINC . '/class-IXR.php' );
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$post_links = array ();
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$pung = get_enclosed ( $post_ID );
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$ltrs = '\w' ;
$gunk = '/#~:.?+=&%@!\-' ;
$punc = '.:?\-' ;
$any = $ltrs . $gunk . $punc ;
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preg_match_all ( " { \ b http : [ $any ] +? (?= [ $punc ] * [^ $any ] | $ )}x " , $content , $post_links_temp );
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foreach ( $pung as $link_test ) {
if ( ! in_array ( $link_test , $post_links_temp [ 0 ] ) ) { // link no longer in post
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$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 , like_escape ( $link_test ) . '%' ) );
foreach ( $mids as $mid )
delete_metadata_by_mid ( 'post' , $mid );
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}
}
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foreach ( ( array ) $post_links_temp [ 0 ] as $link_test ) {
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if ( ! in_array ( $link_test , $pung ) ) { // If we haven't pung it already
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$test = @ parse_url ( $link_test );
if ( false === $test )
continue ;
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if ( isset ( $test [ 'query' ] ) )
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$post_links [] = $link_test ;
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elseif ( isset ( $test [ 'path' ]) && ( $test [ 'path' ] != '/' ) && ( $test [ 'path' ] != '' ) )
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$post_links [] = $link_test ;
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}
}
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2008-08-06 22:31:54 +02:00
foreach ( ( array ) $post_links as $url ) {
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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 , like_escape ( $url ) . '%' ) ) ) {
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2005-03-07 09:56:47 +01:00
if ( $headers = wp_get_http_headers ( $url ) ) {
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$len = isset ( $headers [ 'content-length' ] ) ? ( int ) $headers [ 'content-length' ] : 0 ;
$type = isset ( $headers [ 'content-type' ] ) ? $headers [ 'content-type' ] : '' ;
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$allowed_types = array ( 'video' , 'audio' );
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// Check to see if we can figure out the mime type from
// the extension
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$url_parts = @ parse_url ( $url );
if ( false !== $url_parts ) {
$extension = pathinfo ( $url_parts [ 'path' ], PATHINFO_EXTENSION );
if ( ! empty ( $extension ) ) {
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foreach ( wp_get_mime_types () as $exts => $mime ) {
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if ( preg_match ( '!^(' . $exts . ')$!i' , $extension ) ) {
$type = $mime ;
break ;
}
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}
}
}
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if ( in_array ( substr ( $type , 0 , strpos ( $type , " / " ) ), $allowed_types ) ) {
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add_post_meta ( $post_ID , 'enclosure' , " $url\n $len\n $mime\n " );
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}
}
}
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}
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}
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/**
* 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 .
*
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* @ since 2.5 . 0
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*
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* @ param string $url URL to fetch .
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* @ param string | bool $file_path Optional . File path to write request to .
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* @ param int $red ( private ) The number of Redirects followed , Upon 5 being hit , returns false .
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* @ return bool | string False on failure and string of headers if HEAD request .
*/
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function wp_get_http ( $url , $file_path = false , $red = 1 ) {
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@ set_time_limit ( 60 );
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if ( $red > 5 )
return false ;
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$options = array ();
$options [ 'redirection' ] = 5 ;
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2008-09-27 23:41:19 +02:00
if ( false == $file_path )
$options [ 'method' ] = 'HEAD' ;
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else
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$options [ 'method' ] = 'GET' ;
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$response = wp_remote_request ( $url , $options );
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2008-10-02 02:32:21 +02:00
if ( is_wp_error ( $response ) )
return false ;
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$headers = wp_remote_retrieve_headers ( $response );
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$headers [ 'response' ] = wp_remote_retrieve_response_code ( $response );
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2010-02-14 12:23:32 +01:00
// 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 );
}
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if ( false == $file_path )
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return $headers ;
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2008-10-23 21:39:17 +02:00
// GET request - write it to the supplied filename
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$out_fp = fopen ( $file_path , 'w' );
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if ( ! $out_fp )
return $headers ;
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2011-05-14 21:45:07 +02:00
fwrite ( $out_fp , wp_remote_retrieve_body ( $response ) );
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fclose ( $out_fp );
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clearstatcache ();
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2005-03-07 09:56:47 +01:00
return $headers ;
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}
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/**
* Retrieve HTTP Headers from URL .
*
* @ since 1.5 . 1
*
* @ param string $url
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* @ param bool $deprecated Not Used .
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* @ return bool | string False on failure , headers on success .
*/
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function wp_get_http_headers ( $url , $deprecated = false ) {
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if ( ! empty ( $deprecated ) )
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_deprecated_argument ( __FUNCTION__ , '2.7' );
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$response = wp_remote_head ( $url );
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if ( is_wp_error ( $response ) )
return false ;
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return wp_remote_retrieve_headers ( $response );
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}
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/**
* Whether today is a new day .
*
* @ since 0.71
* @ uses $day Today
* @ uses $previousday Previous day
*
* @ return int 1 when new day , 0 if not a new day .
*/
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function is_new_day () {
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global $currentday , $previousday ;
if ( $currentday != $previousday )
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return 1 ;
else
return 0 ;
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}
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/**
* Build URL query based on an associative and , or indexed array .
*
* This is a convenient function for easily building url queries . It sets the
* separator to '&' and uses _http_build_query () function .
*
* @ see _http_build_query () Used to build the query
* @ link http :// us2 . php . net / manual / en / function . http - build - query . php more on what
* http_build_query () does .
*
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* @ since 2.3 . 0
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*
* @ param array $data URL - encode key / value pairs .
* @ return string URL encoded string
*/
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function build_query ( $data ) {
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return _http_build_query ( $data , null , '&' , '' , false );
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}
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// from php.net (modified by Mark Jaquith to behave like the native PHP5 function)
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' ;
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if ( $v === null )
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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 );
}
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if ( null === $sep )
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$sep = ini_get ( 'arg_separator.output' );
return implode ( $sep , $ret );
}
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/**
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* Retrieve a modified URL query string .
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*
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* 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 .
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*
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* Adding a single key & value or an associative array . Setting a key value to
2011-07-21 19:48:25 +02:00
* an empty string removes the key . Omitting oldquery_or_uri uses the $_SERVER
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* value . Additional values provided are expected to be encoded appropriately
* with urlencode () or rawurlencode () .
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*
* @ since 1.5 . 0
*
* @ param mixed $param1 Either newkey or an associative_array
* @ param mixed $param2 Either newvalue or oldquery or uri
* @ param mixed $param3 Optional . Old query or uri
2008-08-09 06:51:51 +02:00
* @ return string New URL query string .
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*/
2004-10-20 23:28:37 +02:00
function add_query_arg () {
$ret = '' ;
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$args = func_get_args ();
if ( is_array ( $args [ 0 ] ) ) {
if ( count ( $args ) < 2 || false === $args [ 1 ] )
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$uri = $_SERVER [ 'REQUEST_URI' ];
else
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$uri = $args [ 1 ];
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} else {
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if ( count ( $args ) < 3 || false === $args [ 2 ] )
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$uri = $_SERVER [ 'REQUEST_URI' ];
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else
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$uri = $args [ 2 ];
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}
2004-11-21 07:03:19 +01:00
2007-10-11 07:46:57 +02:00
if ( $frag = strstr ( $uri , '#' ) )
$uri = substr ( $uri , 0 , - strlen ( $frag ) );
2006-08-30 03:02:45 +02:00
else
$frag = '' ;
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if ( 0 === stripos ( 'http://' , $uri ) ) {
$protocol = 'http://' ;
$uri = substr ( $uri , 7 );
} elseif ( 0 === stripos ( 'https://' , $uri ) ) {
$protocol = 'https://' ;
$uri = substr ( $uri , 8 );
2006-06-08 20:36:05 +02:00
} else {
$protocol = '' ;
}
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if ( strpos ( $uri , '?' ) !== false ) {
$parts = explode ( '?' , $uri , 2 );
if ( 1 == count ( $parts ) ) {
2004-10-20 23:28:37 +02:00
$base = '?' ;
$query = $parts [ 0 ];
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} else {
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$base = $parts [ 0 ] . '?' ;
$query = $parts [ 1 ];
}
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} elseif ( $protocol || strpos ( $uri , '=' ) === false ) {
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$base = $uri . '?' ;
$query = '' ;
2005-04-01 07:42:46 +02:00
} else {
$base = '' ;
$query = $uri ;
2004-10-20 23:28:37 +02:00
}
2005-04-01 07:42:46 +02:00
2007-10-11 07:46:57 +02:00
wp_parse_str ( $query , $qs );
$qs = urlencode_deep ( $qs ); // this re-URL-encodes things that were already in the query string
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if ( is_array ( $args [ 0 ] ) ) {
$kayvees = $args [ 0 ];
2007-10-11 07:46:57 +02:00
$qs = array_merge ( $qs , $kayvees );
2005-10-10 11:25:38 +02:00
} else {
2012-07-31 17:28:10 +02:00
$qs [ $args [ 0 ] ] = $args [ 1 ];
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}
2005-10-10 11:25:38 +02:00
2012-09-16 18:16:26 +02:00
foreach ( $qs as $k => $v ) {
2007-09-01 05:41:50 +02:00
if ( $v === false )
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unset ( $qs [ $k ] );
2005-10-10 11:25:38 +02:00
}
2007-09-01 05:41:50 +02:00
2007-10-11 07:46:57 +02:00
$ret = build_query ( $qs );
$ret = trim ( $ret , '?' );
$ret = preg_replace ( '#=(&|$)#' , '$1' , $ret );
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$ret = $protocol . $base . $ret . $frag ;
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$ret = rtrim ( $ret , '?' );
2007-04-06 06:21:21 +02:00
return $ret ;
2004-10-20 23:28:37 +02:00
}
2008-06-15 11:38:32 +02:00
/**
* Removes an item or list from the query string .
*
* @ since 1.5 . 0
*
* @ param string | array $key Query key or keys to remove .
* @ param bool $query When false uses the $_SERVER value .
2008-08-09 06:51:51 +02:00
* @ return string New URL query string .
2008-06-15 11:38:32 +02:00
*/
function remove_query_arg ( $key , $query = false ) {
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if ( is_array ( $key ) ) { // removing multiple keys
2008-08-06 22:31:54 +02:00
foreach ( $key as $k )
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$query = add_query_arg ( $k , false , $query );
2006-06-08 20:36:05 +02:00
return $query ;
}
2008-06-15 11:38:32 +02:00
return add_query_arg ( $key , false , $query );
2004-10-20 23:28:37 +02:00
}
2004-12-04 01:12:08 +01:00
2008-06-15 11:38:32 +02:00
/**
* Walks the array while sanitizing the contents .
*
2008-08-10 18:45:50 +02:00
* @ since 0.71
2008-06-15 11:38:32 +02:00
*
* @ param array $array Array to used to walk while sanitizing contents .
* @ return array Sanitized $array .
*/
2007-10-11 07:46:57 +02:00
function add_magic_quotes ( $array ) {
2008-08-06 22:31:54 +02:00
foreach ( ( array ) $array as $k => $v ) {
2007-10-11 07:46:57 +02:00
if ( is_array ( $v ) ) {
$array [ $k ] = add_magic_quotes ( $v );
2004-12-16 03:57:05 +01:00
} else {
2010-02-05 00:05:13 +01:00
$array [ $k ] = addslashes ( $v );
2004-12-16 03:57:05 +01:00
}
}
return $array ;
}
2008-06-30 05:23:44 +02:00
/**
* HTTP request for URI to retrieve content .
*
2008-08-10 18:45:50 +02:00
* @ since 1.5 . 1
2008-09-27 23:41:19 +02:00
* @ uses wp_remote_get ()
2008-06-30 05:23:44 +02:00
*
* @ param string $uri URI / URL of web page to retrieve .
2008-10-02 02:32:21 +02:00
* @ return bool | string HTTP content . False on failure .
2008-06-30 05:23:44 +02:00
*/
2005-05-03 09:52:11 +02:00
function wp_remote_fopen ( $uri ) {
2007-10-11 07:46:57 +02:00
$parsed_url = @ parse_url ( $uri );
2007-01-16 19:41:05 +01:00
2007-10-11 07:46:57 +02:00
if ( ! $parsed_url || ! is_array ( $parsed_url ) )
2007-01-16 19:41:05 +01:00
return false ;
2008-09-27 23:41:19 +02:00
$options = array ();
$options [ 'timeout' ] = 10 ;
2007-01-16 19:41:05 +01:00
2008-09-27 23:41:19 +02:00
$response = wp_remote_get ( $uri , $options );
2007-01-16 19:41:05 +01:00
2008-10-02 02:32:21 +02:00
if ( is_wp_error ( $response ) )
return false ;
2011-05-14 21:45:07 +02:00
return wp_remote_retrieve_body ( $response );
2005-05-03 09:52:11 +02:00
}
2008-08-09 06:51:51 +02:00
/**
2010-03-17 05:39:50 +01:00
* Set up the WordPress query .
2008-08-09 06:51:51 +02:00
*
* @ since 2.0 . 0
*
* @ param string $query_vars Default WP_Query arguments .
*/
2007-10-11 07:46:57 +02:00
function wp ( $query_vars = '' ) {
2007-10-12 23:47:34 +02:00
global $wp , $wp_query , $wp_the_query ;
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$wp -> main ( $query_vars );
2007-10-12 23:47:34 +02:00
2010-01-11 23:08:49 +01:00
if ( ! isset ( $wp_the_query ) )
2007-10-12 23:47:34 +02:00
$wp_the_query = $wp_query ;
2005-06-11 01:15:13 +02:00
}
2008-06-15 11:38:32 +02:00
/**
* 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 .
*/
2007-05-11 05:34:50 +02:00
function get_status_header_desc ( $code ) {
global $wp_header_to_desc ;
2007-06-14 04:25:30 +02:00
2007-10-11 07:46:57 +02:00
$code = absint ( $code );
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2007-10-11 07:46:57 +02:00
if ( ! isset ( $wp_header_to_desc ) ) {
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$wp_header_to_desc = array (
100 => 'Continue' ,
101 => 'Switching Protocols' ,
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102 => 'Processing' ,
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200 => 'OK' ,
201 => 'Created' ,
202 => 'Accepted' ,
203 => 'Non-Authoritative Information' ,
204 => 'No Content' ,
205 => 'Reset Content' ,
206 => 'Partial Content' ,
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207 => 'Multi-Status' ,
226 => 'IM Used' ,
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300 => 'Multiple Choices' ,
301 => 'Moved Permanently' ,
302 => 'Found' ,
303 => 'See Other' ,
304 => 'Not Modified' ,
305 => 'Use Proxy' ,
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306 => 'Reserved' ,
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307 => 'Temporary Redirect' ,
400 => 'Bad Request' ,
401 => 'Unauthorized' ,
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402 => 'Payment Required' ,
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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' ,
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422 => 'Unprocessable Entity' ,
423 => 'Locked' ,
424 => 'Failed Dependency' ,
426 => 'Upgrade Required' ,
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500 => 'Internal Server Error' ,
501 => 'Not Implemented' ,
502 => 'Bad Gateway' ,
503 => 'Service Unavailable' ,
504 => 'Gateway Timeout' ,
2009-03-07 22:05:54 +01:00
505 => 'HTTP Version Not Supported' ,
506 => 'Variant Also Negotiates' ,
507 => 'Insufficient Storage' ,
510 => 'Not Extended'
2007-09-13 06:48:41 +02:00
);
}
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if ( isset ( $wp_header_to_desc [ $code ] ) )
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return $wp_header_to_desc [ $code ];
2007-10-11 07:46:57 +02:00
else
2007-05-11 05:34:50 +02:00
return '' ;
}
2008-06-30 05:23:44 +02:00
/**
* Set HTTP status header .
*
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* @ since 2.0 . 0
2008-06-30 05:23:44 +02:00
* @ uses apply_filters () Calls 'status_header' on status header string , HTTP
* HTTP code , HTTP code description , and protocol string as separate
* parameters .
*
* @ param int $header HTTP status code
2010-02-19 02:08:39 +01:00
* @ return unknown
2008-06-30 05:23:44 +02:00
*/
2005-06-09 02:17:43 +02:00
function status_header ( $header ) {
2007-05-11 06:02:30 +02:00
$text = get_status_header_desc ( $header );
2007-06-14 04:25:30 +02:00
2007-05-12 23:55:14 +02:00
if ( empty ( $text ) )
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return false ;
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$protocol = $_SERVER [ " SERVER_PROTOCOL " ];
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if ( 'HTTP/1.1' != $protocol && 'HTTP/1.0' != $protocol )
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$protocol = 'HTTP/1.0' ;
$status_header = " $protocol $header $text " ;
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if ( function_exists ( 'apply_filters' ) )
$status_header = apply_filters ( 'status_header' , $status_header , $header , $text , $protocol );
2007-05-12 23:55:14 +02:00
2009-02-21 18:22:18 +01:00
return @ header ( $status_header , true , $header );
2005-06-09 02:17:43 +02:00
}
2009-02-21 22:39:06 +01:00
/**
* Gets the header information to prevent caching .
*
* The several different headers cover the different ways cache prevention is handled
* by different browsers
*
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* @ since 2.8 . 0
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*
* @ uses apply_filters ()
* @ return array The associative array of header names and field values .
*/
function wp_get_nocache_headers () {
$headers = array (
'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT' ,
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'Last-Modified' => '' ,
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'Cache-Control' => 'no-cache, must-revalidate, max-age=0' ,
'Pragma' => 'no-cache' ,
);
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if ( function_exists ( 'apply_filters' ) ) {
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$headers = ( array ) apply_filters ( 'nocache_headers' , $headers );
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}
return $headers ;
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}
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/**
* Sets the headers to prevent caching for the different browsers .
*
* Different browsers support different nocache headers , so several headers must
* be sent so that all of them get the point that no caching should occur .
*
* @ since 2.0 . 0
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* @ uses wp_get_nocache_headers ()
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*/
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function nocache_headers () {
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$headers = wp_get_nocache_headers ();
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foreach ( $headers as $name => $field_value )
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@ header ( " { $name } : { $field_value } " );
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if ( empty ( $headers [ 'Last-Modified' ] ) && function_exists ( 'header_remove' ) )
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@ header_remove ( 'Last-Modified' );
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}
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/**
* Set the headers for caching for 10 days with JavaScript content type .
*
* @ since 2.1 . 0
*/
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function cache_javascript_headers () {
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$expiresOffset = 10 * DAY_IN_SECONDS ;
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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 " );
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}
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/**
* Retrieve the number of database queries during the WordPress execution .
*
* @ since 2.0 . 0
*
* @ return int Number of database queries
*/
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function get_num_queries () {
global $wpdb ;
return $wpdb -> num_queries ;
}
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/**
* Whether input is yes or no . Must be 'y' to be true .
*
* @ since 1.0 . 0
*
* @ param string $yn Character string containing either 'y' or 'n'
* @ return bool True if yes , false on anything else
*/
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function bool_from_yn ( $yn ) {
return ( strtolower ( $yn ) == 'y' );
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}
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/**
* Loads the feed template from the use of an action hook .
*
* If the feed action does not have a hook , then the function will die with a
* message telling the visitor that the feed is not valid .
*
* It is better to only have one hook for each feed .
*
* @ since 2.1 . 0
* @ uses $wp_query Used to tell if the use a comment feed .
* @ uses do_action () Calls 'do_feed_$feed' hook , if a hook exists for the feed .
*/
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function do_feed () {
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global $wp_query ;
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$feed = get_query_var ( 'feed' );
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// Remove the pad, if present.
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$feed = preg_replace ( '/^_+/' , '' , $feed );
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if ( $feed == '' || $feed == 'feed' )
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$feed = get_default_feed ();
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$hook = 'do_feed_' . $feed ;
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if ( ! has_action ( $hook ) ) {
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$message = sprintf ( __ ( 'ERROR: %s is not a valid feed template.' ), esc_html ( $feed ));
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wp_die ( $message , '' , array ( 'response' => 404 ) );
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}
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do_action ( $hook , $wp_query -> is_comment_feed );
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}
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/**
* Load the RDF RSS 0.91 Feed template .
*
* @ since 2.1 . 0
*/
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function do_feed_rdf () {
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load_template ( ABSPATH . WPINC . '/feed-rdf.php' );
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}
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/**
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* Load the RSS 1.0 Feed Template .
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*
* @ since 2.1 . 0
*/
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function do_feed_rss () {
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load_template ( ABSPATH . WPINC . '/feed-rss.php' );
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}
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/**
* Load either the RSS2 comment feed or the RSS2 posts feed .
*
* @ since 2.1 . 0
*
* @ param bool $for_comments True for the comment feed , false for normal feed .
*/
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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' );
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}
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/**
* Load either Atom comment feed or Atom posts feed .
*
* @ since 2.1 . 0
*
* @ param bool $for_comments True for the comment feed , false for normal feed .
*/
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function do_feed_atom ( $for_comments ) {
if ( $for_comments )
load_template ( ABSPATH . WPINC . '/feed-atom-comments.php' );
else
load_template ( ABSPATH . WPINC . '/feed-atom.php' );
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}
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/**
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* Display the robots . txt file content .
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*
* The echo content should be with usage of the permalinks or for creating the
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* robots . txt file .
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*
* @ since 2.1 . 0
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* @ uses do_action () Calls 'do_robotstxt' hook for displaying robots . txt rules .
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*/
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function do_robots () {
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header ( 'Content-Type: text/plain; charset=utf-8' );
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do_action ( 'do_robotstxt' );
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$output = " User-agent: * \n " ;
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$public = get_option ( 'blog_public' );
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if ( '0' == $public ) {
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$output .= " Disallow: / \n " ;
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} else {
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$site_url = parse_url ( site_url () );
$path = ( ! empty ( $site_url [ 'path' ] ) ) ? $site_url [ 'path' ] : '' ;
$output .= " Disallow: $path /wp-admin/ \n " ;
$output .= " Disallow: $path /wp-includes/ \n " ;
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}
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echo apply_filters ( 'robots_txt' , $output , $public );
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}
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/**
* Test whether blog is already installed .
*
* The cache will be checked first . If you have a cache plugin , which saves the
* cache values , then this will work . If you use the default WordPress cache ,
* and the database goes away , then you might have problems .
*
* Checks for the option siteurl for whether WordPress is installed .
*
* @ since 2.1 . 0
* @ uses $wpdb
*
* @ return bool Whether blog is already installed .
*/
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function is_blog_installed () {
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global $wpdb ;
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// Check cache first. If options table goes away and we have true cached, oh well.
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if ( wp_cache_get ( 'is_blog_installed' ) )
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return true ;
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$suppress = $wpdb -> suppress_errors ();
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if ( ! defined ( 'WP_INSTALLING' ) ) {
$alloptions = wp_load_alloptions ();
}
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// If siteurl is not set to autoload, check it specifically
if ( ! isset ( $alloptions [ 'siteurl' ] ) )
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$installed = $wpdb -> get_var ( " SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl' " );
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else
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$installed = $alloptions [ 'siteurl' ];
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$wpdb -> suppress_errors ( $suppress );
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$installed = ! empty ( $installed );
wp_cache_set ( 'is_blog_installed' , $installed );
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if ( $installed )
return true ;
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// If visiting repair.php, return true and let it take over.
if ( defined ( 'WP_REPAIRING' ) )
return true ;
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$suppress = $wpdb -> suppress_errors ();
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// Loop over the WP tables. If none exist, then scratch install is allowed.
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// If one or more exist, suggest table repair since we got here because the options
// table could not be accessed.
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$wp_tables = $wpdb -> tables ();
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foreach ( $wp_tables as $table ) {
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// 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 ;
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if ( ! $wpdb -> get_results ( " DESCRIBE $table ; " ) )
continue ;
// One or more tables exist. We are insane.
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wp_load_translations_early ();
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// Die with a DB error.
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$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' );
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dead_db ();
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}
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$wpdb -> suppress_errors ( $suppress );
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wp_cache_set ( 'is_blog_installed' , false );
return false ;
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}
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/**
* Retrieve URL with nonce added to URL query .
*
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* @ package WordPress
* @ subpackage Security
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* @ since 2.0 . 4
*
* @ param string $actionurl URL to add nonce action
* @ param string $action Optional . Nonce action name
* @ return string URL with nonce action added .
*/
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function wp_nonce_url ( $actionurl , $action = - 1 ) {
$actionurl = str_replace ( '&' , '&' , $actionurl );
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return esc_html ( add_query_arg ( '_wpnonce' , wp_create_nonce ( $action ), $actionurl ) );
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}
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/**
* 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 .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ param string $action Optional . Action name .
* @ param string $name Optional . Nonce name .
* @ param bool $referer Optional , default true . Whether to set the referer field for validation .
* @ param bool $echo Optional , default true . Whether to display or return hidden form field .
* @ return string Nonce field .
*/
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function wp_nonce_field ( $action = - 1 , $name = " _wpnonce " , $referer = true , $echo = true ) {
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$name = esc_attr ( $name );
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$nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce ( $action ) . '" />' ;
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if ( $referer )
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$nonce_field .= wp_referer_field ( false );
if ( $echo )
echo $nonce_field ;
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return $nonce_field ;
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}
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/**
* Retrieve or display referer hidden field for forms .
*
* The referer link is the current Request URI from the server super global . The
* input name is '_wp_http_referer' , in case you wanted to check manually .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ param bool $echo Whether to echo or return the referer field .
* @ return string Referer field .
*/
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function wp_referer_field ( $echo = true ) {
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$ref = esc_attr ( $_SERVER [ 'REQUEST_URI' ] );
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$referer_field = '<input type="hidden" name="_wp_http_referer" value="' . $ref . '" />' ;
if ( $echo )
echo $referer_field ;
return $referer_field ;
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}
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/**
* Retrieve or display original referer hidden field for forms .
*
* The input name is '_wp_original_http_referer' and will be either the same
* value of { @ link wp_referer_field ()}, if that was posted already or it will
* be the current page , if it doesn ' t exist .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ param bool $echo Whether to echo the original http referer
* @ param string $jump_back_to Optional , default is 'current' . Can be 'previous' or page you want to jump back to .
* @ return string Original referer field .
*/
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function wp_original_referer_field ( $echo = true , $jump_back_to = 'current' ) {
$jump_back_to = ( 'previous' == $jump_back_to ) ? wp_get_referer () : $_SERVER [ 'REQUEST_URI' ];
$ref = ( wp_get_original_referer () ) ? wp_get_original_referer () : $jump_back_to ;
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$orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr ( stripslashes ( $ref ) ) . '" />' ;
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if ( $echo )
echo $orig_referer_field ;
return $orig_referer_field ;
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}
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/**
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* Retrieve referer from '_wp_http_referer' or HTTP referer . If it ' s the same
* as the current request URL , will return false .
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*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ return string | bool False on failure . Referer URL on success .
*/
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function wp_get_referer () {
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$ref = false ;
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if ( ! empty ( $_REQUEST [ '_wp_http_referer' ] ) )
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$ref = $_REQUEST [ '_wp_http_referer' ];
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else if ( ! empty ( $_SERVER [ 'HTTP_REFERER' ] ) )
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$ref = $_SERVER [ 'HTTP_REFERER' ];
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if ( $ref && $ref !== $_SERVER [ 'REQUEST_URI' ] )
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return $ref ;
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return false ;
}
2008-08-10 18:45:50 +02:00
/**
* Retrieve original referer that was posted , if it exists .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ return string | bool False if no original referer or original referer if set .
*/
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function wp_get_original_referer () {
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if ( ! empty ( $_REQUEST [ '_wp_original_http_referer' ] ) )
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return $_REQUEST [ '_wp_original_http_referer' ];
return false ;
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}
2008-08-10 18:45:50 +02:00
/**
* 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 .
2010-02-24 21:13:23 +01:00
* @ return bool Whether the path was created . True if path already exists .
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*/
2007-10-11 07:46:57 +02:00
function wp_mkdir_p ( $target ) {
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$wrapper = null ;
// strip the protocol
if ( wp_is_stream ( $target ) ) {
list ( $wrapper , $target ) = explode ( '://' , $target , 2 );
}
2006-06-08 01:17:59 +02:00
// from php.net/mkdir user contributed notes
2008-03-21 19:27:56 +01:00
$target = str_replace ( '//' , '/' , $target );
2010-01-17 03:44:47 +01:00
2012-10-01 22:59:06 +02:00
// put the wrapper back on the target
if ( $wrapper !== null ) {
$target = $wrapper . '://' . $target ;
}
2010-01-17 03:57:59 +01:00
// safe mode fails with a trailing slash under certain PHP versions.
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$target = rtrim ( $target , '/' ); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency.
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if ( empty ( $target ) )
$target = '/' ;
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if ( file_exists ( $target ) )
return @ is_dir ( $target );
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// Attempting to create the directory may clutter up our display.
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if ( @ mkdir ( $target ) ) {
$stat = @ stat ( dirname ( $target ) );
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$dir_perms = $stat [ 'mode' ] & 0007777 ; // Get the permission bits.
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@ chmod ( $target , $dir_perms );
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return true ;
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} elseif ( is_dir ( dirname ( $target ) ) ) {
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return false ;
}
// If the above failed, attempt to create the parent node, then try again.
2008-11-30 00:24:20 +01:00
if ( ( $target != '/' ) && ( wp_mkdir_p ( dirname ( $target ) ) ) )
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return wp_mkdir_p ( $target );
2008-12-09 19:03:31 +01:00
2006-06-08 01:17:59 +02:00
return false ;
}
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/**
* Test if a give filesystem path is absolute ( '/foo/bar' , 'c:\windows' ) .
*
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* @ since 2.5 . 0
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*
* @ param string $path File path
* @ return bool True if path is absolute , false is not absolute .
*/
2008-02-22 18:46:03 +01:00
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 ;
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if ( strlen ( $path ) == 0 || $path [ 0 ] == '.' )
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return false ;
2008-03-02 21:17:30 +01:00
2008-02-22 18:46:03 +01:00
// 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
2011-08-16 02:21:56 +02:00
return ( $path [ 0 ] == '/' || $path [ 0 ] == '\\' );
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}
2008-08-09 06:51:51 +02:00
/**
* Join two filesystem paths together ( e . g . 'give me $path relative to $base' ) .
*
* If the $path is absolute , then it the full path is returned .
*
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* @ since 2.5 . 0
2008-08-09 06:51:51 +02:00
*
* @ param string $base
* @ param string $path
* @ return string The path with the base or absolute path .
*/
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function path_join ( $base , $path ) {
if ( path_is_absolute ( $path ) )
return $path ;
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return rtrim ( $base , '/' ) . '/' . ltrim ( $path , '/' );
}
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/**
* Determines a writable directory for temporary files .
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* Function ' s preference is the return value of < code > sys_get_temp_dir () </ code > ,
* followed by your PHP temporary upload directory , followed by WP_CONTENT_DIR ,
* before finally defaulting to / tmp /
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*
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* In the event that this function does not find a writable location ,
* It may be overridden by the < code > WP_TEMP_DIR </ code > constant in
* your < code > wp - config . php </ code > file .
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*
* @ 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 )
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return trailingslashit ( rtrim ( $temp , '\\' ) );
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$is_win = ( 'WIN' === strtoupper ( substr ( PHP_OS , 0 , 3 ) ) );
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if ( function_exists ( 'sys_get_temp_dir' ) ) {
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$temp = sys_get_temp_dir ();
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if ( @ is_dir ( $temp ) && ( $is_win ? win_is_writable ( $temp ) : @ is_writable ( $temp ) ) ) {
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return trailingslashit ( rtrim ( $temp , '\\' ) );
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}
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}
$temp = ini_get ( 'upload_tmp_dir' );
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if ( is_dir ( $temp ) && ( $is_win ? win_is_writable ( $temp ) : @ is_writable ( $temp ) ) )
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return trailingslashit ( rtrim ( $temp , '\\' ) );
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$temp = WP_CONTENT_DIR . '/' ;
if ( is_dir ( $temp ) && ( $is_win ? win_is_writable ( $temp ) : @ is_writable ( $temp ) ) )
return $temp ;
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$temp = '/tmp/' ;
return $temp ;
}
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/**
* Workaround for Windows bug in is_writable () function
*
* @ since 2.8 . 0
*
* @ param string $path
* @ return bool
*/
function win_is_writable ( $path ) {
/* will work in despite of Windows ACLs bug
* NOTE : use a trailing slash for folders !!!
* see http :// bugs . php . net / bug . php ? id = 27609
* see http :// bugs . php . net / bug . php ? id = 30931
*/
if ( $path [ strlen ( $path ) - 1 ] == '/' ) // recursively return a temporary file path
return win_is_writable ( $path . uniqid ( mt_rand () ) . '.tmp' );
else if ( is_dir ( $path ) )
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 ;
}
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/**
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* Get an array containing the current upload directory ' s path and url .
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*
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* 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 .
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*
* @ since 2.0 . 0
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* @ uses apply_filters () Calls 'upload_dir' on returned array .
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*
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* @ param string $time Optional . Time formatted in 'yyyy/mm' .
* @ return array See above for description .
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*/
function wp_upload_dir ( $time = null ) {
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$siteurl = get_option ( 'siteurl' );
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$upload_path = trim ( get_option ( 'upload_path' ) );
if ( empty ( $upload_path ) || 'wp-content/uploads' == $upload_path ) {
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$dir = WP_CONTENT_DIR . '/uploads' ;
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} elseif ( 0 !== strpos ( $upload_path , ABSPATH ) ) {
// $dir is absolute, $upload_path is (maybe) relative to ABSPATH
$dir = path_join ( ABSPATH , $upload_path );
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} else {
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$dir = $upload_path ;
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}
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if ( ! $url = get_option ( 'upload_url_path' ) ) {
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if ( empty ( $upload_path ) || ( 'wp-content/uploads' == $upload_path ) || ( $upload_path == $dir ) )
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$url = WP_CONTENT_URL . '/uploads' ;
else
$url = trailingslashit ( $siteurl ) . $upload_path ;
}
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// Obey the value of UPLOADS. This happens as long as ms-files rewriting is disabled.
// We also sometimes obey UPLOADS when rewriting is enabled -- see the next block.
if ( defined ( 'UPLOADS' ) && ! ( is_multisite () && get_site_option ( 'ms_files_rewriting' ) ) ) {
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$dir = ABSPATH . UPLOADS ;
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$url = trailingslashit ( $siteurl ) . UPLOADS ;
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}
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// If multisite (and if not the main site in a post-MU network)
if ( is_multisite () && ! ( is_main_site () && defined ( 'MULTISITE' ) ) ) {
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if ( ! get_site_option ( 'ms_files_rewriting' ) ) {
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// 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
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// 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
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// directory, as they never had wp-content/uploads for the main site.)
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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 () ) {
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// Handle the old-form ms-files.php rewriting if the network still has that enabled.
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// 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.
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//
// 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.)
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if ( defined ( 'BLOGUPLOADDIR' ) )
$dir = untrailingslashit ( BLOGUPLOADDIR );
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else
$dir = ABSPATH . UPLOADS ;
$url = trailingslashit ( $siteurl ) . 'files' ;
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}
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}
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$basedir = $dir ;
$baseurl = $url ;
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$subdir = '' ;
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if ( get_option ( 'uploads_use_yearmonth_folders' ) ) {
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// Generate the yearly and monthly dirs
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if ( ! $time )
$time = current_time ( 'mysql' );
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$y = substr ( $time , 0 , 4 );
$m = substr ( $time , 5 , 2 );
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$subdir = " / $y / $m " ;
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}
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$dir .= $subdir ;
$url .= $subdir ;
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$uploads = apply_filters ( 'upload_dir' ,
array (
'path' => $dir ,
'url' => $url ,
'subdir' => $subdir ,
'basedir' => $basedir ,
'baseurl' => $baseurl ,
'error' => false ,
) );
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2006-06-08 01:17:59 +02:00
// Make sure we have an uploads dir
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if ( ! wp_mkdir_p ( $uploads [ 'path' ] ) ) {
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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?' ), $error_path );
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$uploads [ 'error' ] = $message ;
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}
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return $uploads ;
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}
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/**
* Get a filename that is sanitized and unique for the given directory .
*
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* 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 .
*
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* The callback is passed three parameters , the first one is the directory , the
* second is the filename , and the third is the extension .
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*
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* @ since 2.5 . 0
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*
* @ param string $dir
* @ param string $filename
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* @ param mixed $unique_filename_callback Callback .
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* @ return string New filename , if given wasn ' t unique .
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*/
function wp_unique_filename ( $dir , $filename , $unique_filename_callback = null ) {
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// sanitize the file name before we begin processing
$filename = sanitize_file_name ( $filename );
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// separate the filename into a name and extension
$info = pathinfo ( $filename );
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$ext = ! empty ( $info [ 'extension' ]) ? '.' . $info [ 'extension' ] : '' ;
$name = basename ( $filename , $ext );
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// edge case: if file is named '.ext', treat as an empty name
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if ( $name === $ext )
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$name = '' ;
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// Increment the file number until we have a unique file to save in $dir. Use callback if supplied.
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if ( $unique_filename_callback && is_callable ( $unique_filename_callback ) ) {
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$filename = call_user_func ( $unique_filename_callback , $dir , $name , $ext );
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} else {
$number = '' ;
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// 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 ;
}
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2007-12-16 22:34:48 +01:00
while ( file_exists ( $dir . " / $filename " ) ) {
if ( '' == " $number $ext " )
$filename = $filename . ++ $number . $ext ;
else
$filename = str_replace ( " $number $ext " , ++ $number . $ext , $filename );
}
}
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2007-12-16 22:34:48 +01:00
return $filename ;
}
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/**
* 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
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* @ param null $deprecated Never used . Set to null .
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* @ param mixed $bits File content
* @ param string $time Optional . Time formatted in 'yyyy/mm' .
* @ return array
*/
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function wp_upload_bits ( $name , $deprecated , $bits , $time = null ) {
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if ( ! empty ( $deprecated ) )
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_deprecated_argument ( __FUNCTION__ , '2.0' );
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2007-10-11 07:46:57 +02:00
if ( empty ( $name ) )
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return array ( 'error' => __ ( 'Empty filename' ) );
2006-06-22 01:17:19 +02:00
2007-10-11 07:46:57 +02:00
$wp_filetype = wp_check_filetype ( $name );
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if ( ! $wp_filetype [ 'ext' ] && ! current_user_can ( 'unfiltered_upload' ) )
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return array ( 'error' => __ ( 'Invalid file type' ) );
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$upload = wp_upload_dir ( $time );
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if ( $upload [ 'error' ] !== false )
return $upload ;
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$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 ;
}
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2007-12-18 04:32:43 +01:00
$filename = wp_unique_filename ( $upload [ 'path' ], $name );
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$new_file = $upload [ 'path' ] . " / $filename " ;
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if ( ! wp_mkdir_p ( dirname ( $new_file ) ) ) {
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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 );
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return array ( 'error' => $message );
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}
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$ifp = @ fopen ( $new_file , 'wb' );
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if ( ! $ifp )
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return array ( 'error' => sprintf ( __ ( 'Could not write file %s' ), $new_file ) );
2006-06-08 01:17:59 +02:00
2007-12-06 20:49:33 +01:00
@ fwrite ( $ifp , $bits );
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fclose ( $ifp );
2010-06-02 16:01:21 +02:00
clearstatcache ();
2010-06-02 22:04:07 +02:00
2006-06-08 01:17:59 +02:00
// Set correct file permissions
2007-10-11 07:46:57 +02:00
$stat = @ stat ( dirname ( $new_file ) );
2006-06-08 01:17:59 +02:00
$perms = $stat [ 'mode' ] & 0007777 ;
$perms = $perms & 0000666 ;
2007-10-11 07:46:57 +02:00
@ chmod ( $new_file , $perms );
2010-06-02 16:01:21 +02:00
clearstatcache ();
2006-06-08 01:17:59 +02:00
2007-03-09 21:14:52 +01:00
// Compute the URL
2006-06-08 01:17:59 +02:00
$url = $upload [ 'url' ] . " / $filename " ;
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return array ( 'file' => $new_file , 'url' => $url , 'error' => false );
2006-06-08 01:17:59 +02:00
}
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/**
* Retrieve the file type based on the extension name .
*
* @ package WordPress
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* @ since 2.5 . 0
2008-08-09 06:51:51 +02:00
* @ uses apply_filters () Calls 'ext2type' hook on default supported types .
*
* @ param string $ext The extension to search .
* @ return string | null The file type , example : audio , video , document , spreadsheet , etc . Null if not found .
*/
2008-02-29 07:54:15 +01:00
function wp_ext2type ( $ext ) {
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$ext2type = apply_filters ( 'ext2type' , array (
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'audio' => array ( 'aac' , 'ac3' , 'aif' , 'aiff' , 'm3a' , 'm4a' , 'm4b' , 'mka' , 'mp1' , 'mp2' , 'mp3' , 'ogg' , 'oga' , 'ram' , 'wav' , 'wma' ),
'video' => array ( 'asf' , 'avi' , 'divx' , 'dv' , 'flv' , 'm4v' , 'mkv' , 'mov' , 'mp4' , 'mpeg' , 'mpg' , 'mpv' , 'ogm' , 'ogv' , 'qt' , 'rm' , 'vob' , 'wmv' ),
'document' => array ( 'doc' , 'docx' , 'docm' , 'dotm' , 'odt' , 'pages' , 'pdf' , 'rtf' , 'wp' , 'wpd' ),
'spreadsheet' => array ( 'numbers' , 'ods' , 'xls' , 'xlsx' , 'xlsm' , 'xlsb' ),
'interactive' => array ( 'swf' , 'key' , 'ppt' , 'pptx' , 'pptm' , 'pps' , 'ppsx' , 'ppsm' , 'sldx' , 'sldm' , 'odp' ),
2010-04-11 04:11:29 +02:00
'text' => array ( 'asc' , 'csv' , 'tsv' , 'txt' ),
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'archive' => array ( 'bz2' , 'cab' , 'dmg' , 'gz' , 'rar' , 'sea' , 'sit' , 'sqx' , 'tar' , 'tgz' , 'zip' , '7z' ),
2010-04-11 10:50:23 +02:00
'code' => array ( 'css' , 'htm' , 'html' , 'php' , 'js' ),
2008-02-29 07:54:15 +01:00
));
foreach ( $ext2type as $type => $exts )
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if ( in_array ( $ext , $exts ) )
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return $type ;
}
2007-10-11 07:46:57 +02:00
2008-08-09 06:51:51 +02:00
/**
* 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 .
*/
2007-10-11 07:46:57 +02:00
function wp_check_filetype ( $filename , $mimes = null ) {
2009-11-12 06:20:48 +01:00
if ( empty ( $mimes ) )
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$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' );
}
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/**
* Attempt to determine the real file type of a file .
* If unable to , the file name extension will be used to determine type .
*
* If it 's determined that the extension does not match the file' s real type ,
* then the " proper_filename " value will be set with a proper filename and extension .
*
* Currently this function only supports validating images known to getimagesize () .
*
* @ since 3.0 . 0
*
* @ param string $file Full path to the image .
* @ param string $filename The filename of the image ( may differ from $file due to $file being in a tmp directory )
* @ param array $mimes Optional . Key is the file extension with value as the mime type .
* @ return array Values for the extension , MIME , and either a corrected filename or false if original $filename is valid
*/
function wp_check_filetype_and_ext ( $file , $filename , $mimes = null ) {
$proper_filename = false ;
// Do basic extension validation and MIME mapping
$wp_filetype = wp_check_filetype ( $filename , $mimes );
extract ( $wp_filetype );
// We can't do any further validation without a file to work with
if ( ! file_exists ( $file ) )
return compact ( 'ext' , 'type' , 'proper_filename' );
// We're able to validate images using GD
if ( $type && 0 === strpos ( $type , 'image/' ) && function_exists ( 'getimagesize' ) ) {
// Attempt to figure out what type of image it actually is
$imgstats = @ getimagesize ( $file );
// If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME
if ( ! empty ( $imgstats [ 'mime' ]) && $imgstats [ 'mime' ] != $type ) {
// This is a simplified array of MIMEs that getimagesize() can detect and their extensions
// You shouldn't need to use this filter, but it's here just in case
$mime_to_ext = apply_filters ( 'getimagesize_mimes_to_exts' , array (
'image/jpeg' => 'jpg' ,
'image/png' => 'png' ,
'image/gif' => 'gif' ,
'image/bmp' => 'bmp' ,
'image/tiff' => 'tif' ,
) );
// Replace whatever is after the last period in the filename with the correct extension
if ( ! empty ( $mime_to_ext [ $imgstats [ 'mime' ] ] ) ) {
$filename_parts = explode ( '.' , $filename );
array_pop ( $filename_parts );
$filename_parts [] = $mime_to_ext [ $imgstats [ 'mime' ] ];
$new_filename = implode ( '.' , $filename_parts );
if ( $new_filename != $filename )
$proper_filename = $new_filename ; // Mark that it changed
// Redefine the extension / MIME
$wp_filetype = wp_check_filetype ( $new_filename , $mimes );
extract ( $wp_filetype );
}
}
}
// Let plugins try and validate other types of files
// Should return an array in the style of array( 'ext' => $ext, 'type' => $type, 'proper_filename' => $proper_filename )
return apply_filters ( 'wp_check_filetype_and_ext' , compact ( 'ext' , 'type' , 'proper_filename' ), $file , $filename , $mimes );
}
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/**
* Retrieve list of mime types and file extensions .
*
* @ since 3.5 . 0
*
* @ uses apply_filters () Calls 'mime_types' on returned array . This filter should
* be used to add types , not remove them . To remove types use the upload_mimes filter .
*
* @ return array Array of mime types keyed by the file extension regex corresponding to those types .
*/
function wp_get_mime_types () {
// Accepted MIME types are set here as PCRE unless provided.
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|wax|wmv|wmx' => 'video/asf' ,
'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' ,
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'webm' => 'video/webm' ,
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'mkv' => 'video/x-matroska' ,
// Text formats
'txt|asc|c|cc|h' => 'text/plain' ,
'csv' => 'text/csv' ,
'tsv' => 'text/tab-separated-values' ,
'ics' => 'text/calendar' ,
'rtx' => 'text/richtext' ,
'css' => 'text/css' ,
'htm|html' => 'text/html' ,
// 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/wma' ,
'mka' => 'audio/x-matroska' ,
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// Misc application formats
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'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' ,
// 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' ,
// 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' ,
) );
}
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/**
* Retrieve list of allowed mime types and file extensions .
*
* @ since 2.8 . 6
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*
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* @ uses apply_filters () Calls 'upload_mimes' on returned array
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* @ uses wp_get_upload_mime_types () to fetch the list of mime types
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*
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* @ return array Array of mime types keyed by the file extension regex corresponding to those types .
*/
function get_allowed_mime_types () {
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return apply_filters ( 'upload_mimes' , wp_get_mime_types () );
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}
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/**
* 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 .
*
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* @ package WordPress
* @ subpackage Security
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* @ since 2.0 . 4
*
* @ param string $action The nonce action .
*/
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function wp_nonce_ays ( $action ) {
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$title = __ ( 'WordPress Failure Notice' );
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if ( 'log-out' == $action ) {
$html = sprintf ( __ ( 'You are attempting to log out of %s' ), get_bloginfo ( 'name' ) ) . '</p><p>' ;
$html .= sprintf ( __ ( " Do you really want to <a href='%s'>log out</a>? " ), wp_logout_url () );
} 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> " ;
}
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wp_die ( $html , $title , array ( 'response' => 403 ) );
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}
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/**
* Kill WordPress execution and display HTML message with error message .
*
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* This function complements the die () PHP function . The difference is that
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* 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
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* as possible silently .
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*
* @ since 2.0 . 4
*
* @ param string $message Error message .
* @ param string $title Error title .
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* @ param string | array $args Optional arguments to control behavior .
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*/
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function wp_die ( $message = '' , $title = '' , $args = array () ) {
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if ( defined ( 'DOING_AJAX' ) && DOING_AJAX )
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$function = apply_filters ( 'wp_die_ajax_handler' , '_ajax_wp_die_handler' );
elseif ( defined ( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST )
$function = apply_filters ( 'wp_die_xmlrpc_handler' , '_xmlrpc_wp_die_handler' );
else
$function = apply_filters ( 'wp_die_handler' , '_default_wp_die_handler' );
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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
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* @ access private
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*
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* @ param string $message Error message .
* @ param string $title Error title .
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* @ param string | array $args Optional arguments to control behavior .
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*/
function _default_wp_die_handler ( $message , $title = '' , $args = array () ) {
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$defaults = array ( 'response' => 500 );
$r = wp_parse_args ( $args , $defaults );
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$have_gettext = function_exists ( '__' );
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if ( function_exists ( 'is_wp_error' ) && is_wp_error ( $message ) ) {
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if ( empty ( $title ) ) {
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$error_data = $message -> get_error_data ();
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if ( is_array ( $error_data ) && isset ( $error_data [ 'title' ] ) )
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$title = $error_data [ 'title' ];
}
$errors = $message -> get_error_messages ();
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switch ( count ( $errors ) ) :
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case 0 :
$message = '' ;
break ;
case 1 :
$message = " <p> { $errors [ 0 ] } </p> " ;
break ;
default :
$message = " <ul> \n \t \t <li> " . join ( " </li> \n \t \t <li> " , $errors ) . " </li> \n \t </ul> " ;
break ;
endswitch ;
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} elseif ( is_string ( $message ) ) {
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$message = " <p> $message </p> " ;
}
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if ( isset ( $r [ 'back_link' ] ) && $r [ 'back_link' ] ) {
$back_text = $have_gettext ? __ ( '« Back' ) : '« Back' ;
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$message .= " \n <p><a href='javascript:history.back()'> $back_text </a></p> " ;
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}
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if ( ! did_action ( 'admin_head' ) ) :
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if ( ! headers_sent () ) {
status_header ( $r [ 'response' ] );
nocache_headers ();
header ( 'Content-Type: text/html; charset=utf-8' );
}
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if ( empty ( $title ) )
$title = $have_gettext ? __ ( 'WordPress › Error' ) : 'WordPress › Error' ;
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$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' ;
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?>
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<! DOCTYPE html >
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<!-- 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
-->
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< 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 ' " ; ?> >
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< head >
< meta http - equiv = " Content-Type " content = " text/html; charset=utf-8 " />
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< title >< ? php echo $title ?> </title>
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< style type = " text/css " >
html {
background : #f9f9f9;
}
body {
background : #fff;
color : #333;
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font - family : sans - serif ;
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margin : 2 em auto ;
padding : 1 em 2 em ;
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- webkit - border - radius : 3 px ;
border - radius : 3 px ;
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border : 1 px solid #dfdfdf;
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max - width : 700 px ;
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}
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h1 {
border - bottom : 1 px solid #dadada;
clear : both ;
color : #666;
font : 24 px Georgia , " Times New Roman " , Times , serif ;
margin : 30 px 0 0 0 ;
padding : 0 ;
padding - bottom : 7 px ;
}
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#error-page {
margin - top : 50 px ;
}
#error-page p {
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font - size : 14 px ;
line - height : 1.5 ;
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margin : 25 px 0 20 px ;
}
#error-page code {
font - family : Consolas , Monaco , monospace ;
}
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ul li {
margin - bottom : 10 px ;
font - size : 14 px ;
}
a {
color : #21759B;
text - decoration : none ;
}
a : hover {
color : #D54E21;
}
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. button {
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display : inline - block ;
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text - decoration : none ;
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font - size : 14 px ;
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line - height : 23 px ;
height : 24 px ;
margin : 0 ;
padding : 0 10 px 1 px ;
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cursor : pointer ;
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border - width : 1 px ;
border - style : solid ;
- webkit - border - radius : 3 px ;
border - radius : 3 px ;
white - space : nowrap ;
- webkit - box - sizing : border - box ;
- moz - box - sizing : border - box ;
box - sizing : border - box ;
background : #f3f3f3;
background - image : - webkit - gradient ( linear , left top , left bottom , from ( #fefefe), to(#f4f4f4));
background - image : - webkit - linear - gradient ( top , #fefefe, #f4f4f4);
background - image : - moz - linear - gradient ( top , #fefefe, #f4f4f4);
background - image : - o - linear - gradient ( top , #fefefe, #f4f4f4);
background - image : linear - gradient ( to bottom , #fefefe, #f4f4f4);
border - color : #bbb;
color : #333;
text - shadow : 0 1 px 0 #fff;
}
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. button . button - large {
height : 29 px ;
line - height : 28 px ;
padding : 0 12 px ;
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}
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. button : hover ,
. button : focus {
background : #f3f3f3;
background - image : - webkit - gradient ( linear , left top , left bottom , from ( #fff), to(#f3f3f3));
background - image : - webkit - linear - gradient ( top , #fff, #f3f3f3);
background - image : - moz - linear - gradient ( top , #fff, #f3f3f3);
background - image : - ms - linear - gradient ( top , #fff, #f3f3f3);
background - image : - o - linear - gradient ( top , #fff, #f3f3f3);
background - image : linear - gradient ( to bottom , #fff, #f3f3f3);
border - color : #999;
color : #222;
}
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. button : focus {
- webkit - box - shadow : 1 px 1 px 1 px rgba ( 0 , 0 , 0 , . 2 );
box - shadow : 1 px 1 px 1 px rgba ( 0 , 0 , 0 , . 2 );
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}
. button : active {
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outline : none ;
background : #eee;
background - image : - webkit - gradient ( linear , left top , left bottom , from ( #f4f4f4), to(#fefefe));
background - image : - webkit - linear - gradient ( top , #f4f4f4, #fefefe);
background - image : - moz - linear - gradient ( top , #f4f4f4, #fefefe);
background - image : - ms - linear - gradient ( top , #f4f4f4, #fefefe);
background - image : - o - linear - gradient ( top , #f4f4f4, #fefefe);
background - image : linear - gradient ( to bottom , #f4f4f4, #fefefe);
border - color : #999;
color : #333;
text - shadow : 0 - 1 px 0 #fff;
- webkit - box - shadow : inset 0 2 px 5 px - 3 px rgba ( 0 , 0 , 0 , 0.5 );
box - shadow : inset 0 2 px 5 px - 3 px rgba ( 0 , 0 , 0 , 0.5 );
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}
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< ? php if ( 'rtl' == $text_direction ) : ?>
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body { font - family : Tahoma , Arial ; }
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< ? php endif ; ?>
</ style >
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</ head >
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< body id = " error-page " >
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< ? php endif ; // ! did_action( 'admin_head' ) ?>
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< ? php echo $message ; ?>
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</ body >
</ html >
< ? php
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die ();
}
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/**
* 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 Error title .
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* @ param string | array $args Optional arguments to control behavior .
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*/
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function _xmlrpc_wp_die_handler ( $message , $title = '' , $args = array () ) {
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global $wp_xmlrpc_server ;
$defaults = array ( 'response' => 500 );
$r = wp_parse_args ( $args , $defaults );
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if ( $wp_xmlrpc_server ) {
$error = new IXR_Error ( $r [ 'response' ] , $message );
$wp_xmlrpc_server -> output ( $error -> getXml () );
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}
die ();
}
/**
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* Kill WordPress ajax execution .
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*
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* This is the handler for wp_die when processing Ajax requests .
*
* @ since 3.4 . 0
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* @ access private
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*
* @ param string $message Optional . Response to print .
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*/
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function _ajax_wp_die_handler ( $message = '' ) {
if ( is_scalar ( $message ) )
die ( ( string ) $message );
die ( '0' );
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}
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/**
* 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 .
*/
function _scalar_wp_die_handler ( $message = '' ) {
if ( is_scalar ( $message ) )
die ( ( string ) $message );
die ();
}
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/**
* 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' ) );
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echo json_encode ( $response );
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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 );
}
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/**
* Retrieve the WordPress home page URL .
*
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* If the constant named 'WP_HOME' exists , then it will be used and returned by
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* the function . This can be used to counter the redirection on your local
* development environment .
*
* @ access private
* @ package WordPress
* @ since 2.2 . 0
*
* @ param string $url URL for the home location
* @ return string Homepage location .
*/
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function _config_wp_home ( $url = '' ) {
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if ( defined ( 'WP_HOME' ) )
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return untrailingslashit ( WP_HOME );
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return $url ;
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}
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/**
* Retrieve the WordPress site URL .
*
* If the constant named 'WP_SITEURL' is defined , then the value in that
* constant will always be returned . This can be used for debugging a site on
* your localhost while not having to change the database to your URL .
*
* @ access private
* @ package WordPress
* @ since 2.2 . 0
*
* @ param string $url URL to set the WordPress site location .
* @ return string The WordPress Site URL
*/
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function _config_wp_siteurl ( $url = '' ) {
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if ( defined ( 'WP_SITEURL' ) )
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return untrailingslashit ( WP_SITEURL );
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return $url ;
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}
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/**
* Set the localized direction for MCE plugin .
*
* Will only set the direction to 'rtl' , if the WordPress locale has the text
* direction set to 'rtl' .
*
* Fills in the 'directionality' , 'plugins' , and 'theme_advanced_button1' array
* keys . These keys are then returned in the $input array .
*
* @ access private
* @ package WordPress
* @ subpackage MCE
* @ since 2.1 . 0
*
* @ param array $input MCE plugin array .
* @ return array Direction set for 'rtl' , if needed by locale .
*/
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function _mce_set_direction ( $input ) {
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if ( is_rtl () ) {
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$input [ 'directionality' ] = 'rtl' ;
$input [ 'plugins' ] .= ',directionality' ;
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$input [ 'theme_advanced_buttons1' ] .= ',ltr' ;
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}
return $input ;
}
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/**
* 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 .
*
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* The $wp_smiliessearch global is for the regular expression and is set each
* time the function is called .
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*
* 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
*/
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function smilies_init () {
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global $wpsmiliestrans , $wp_smiliessearch ;
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// don't bother setting up smilies if they are disabled
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if ( ! get_option ( 'use_smilies' ) )
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return ;
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if ( ! isset ( $wpsmiliestrans ) ) {
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$wpsmiliestrans = array (
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':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' ,
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// This one transformation breaks regular text with frequency.
// '8)' => 'icon_cool.gif',
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'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' ,
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);
}
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if ( count ( $wpsmiliestrans ) == 0 ) {
return ;
}
/*
* NOTE : we sort the smilies in reverse key order . This is to make sure
* we match the longest possible smilie ( : ? ? ? : vs : ? ) as the regular
* expression used below is first - match
*/
krsort ( $wpsmiliestrans );
$wp_smiliessearch = '/(?:\s|^)' ;
$subchar = '' ;
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foreach ( ( array ) $wpsmiliestrans as $smiley => $img ) {
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$firstchar = substr ( $smiley , 0 , 1 );
$rest = substr ( $smiley , 1 );
// new subpattern?
if ( $firstchar != $subchar ) {
if ( $subchar != '' ) {
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$wp_smiliessearch .= ')|(?:\s|^)' ;
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}
$subchar = $firstchar ;
$wp_smiliessearch .= preg_quote ( $firstchar , '/' ) . '(?:' ;
} else {
$wp_smiliessearch .= '|' ;
}
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$wp_smiliessearch .= preg_quote ( $rest , '/' );
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}
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$wp_smiliessearch .= ')(?:\s|$)/m' ;
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}
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/**
* Merge user defined arguments into defaults array .
*
* This function is used throughout WordPress to allow for both string or array
* to be merged into another array .
*
* @ since 2.2 . 0
*
* @ param string | array $args Value to merge with $defaults
* @ param array $defaults Array that serves as the defaults .
* @ return array Merged user defined values with defaults .
*/
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function wp_parse_args ( $args , $defaults = '' ) {
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if ( is_object ( $args ) )
$r = get_object_vars ( $args );
elseif ( is_array ( $args ) )
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$r =& $args ;
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else
wp_parse_str ( $args , $r );
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if ( is_array ( $defaults ) )
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return array_merge ( $defaults , $r );
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return $r ;
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}
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/**
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* Clean up an array , comma - or space - separated list of IDs .
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*
* @ since 3.0 . 0
*
* @ param array | string $list
* @ return array Sanitized array of IDs
*/
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function wp_parse_id_list ( $list ) {
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if ( ! is_array ( $list ) )
$list = preg_split ( '/[\s,]+/' , $list );
return array_unique ( array_map ( 'absint' , $list ));
}
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/**
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* Extract a slice of an array , given a list of keys .
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*
* @ 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 ;
}
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/**
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* Filters a list of objects , based on a set of key => value arguments .
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*
* @ since 3.0 . 0
*
* @ param array $list An array of objects to filter
* @ param array $args An array of key => value arguments to match against each object
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* @ param string $operator The logical operation to perform . 'or' means only one element
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* from the array needs to match ; 'and' means all elements must match . The default is 'and' .
* @ param bool | string $field A field from the object to place instead of the entire object
* @ return array A list of objects or object fields
*/
function wp_filter_object_list ( $list , $args = array (), $operator = 'and' , $field = false ) {
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if ( ! is_array ( $list ) )
return array ();
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$list = wp_list_filter ( $list , $args , $operator );
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if ( $field )
$list = wp_list_pluck ( $list , $field );
return $list ;
}
2010-04-16 16:08:58 +02:00
2010-10-02 20:48:51 +02:00
/**
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* Filters a list of objects , based on a set of key => value arguments .
2010-10-02 20:48:51 +02:00
*
* @ since 3.1 . 0
*
* @ param array $list An array of objects to filter
* @ param array $args An array of key => value arguments to match against each object
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* @ param string $operator 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 .
* The default is 'AND' .
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* @ return array
*/
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function wp_list_filter ( $list , $args = array (), $operator = 'AND' ) {
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if ( ! is_array ( $list ) )
return array ();
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if ( empty ( $args ) )
return $list ;
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$operator = strtoupper ( $operator );
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$count = count ( $args );
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$filtered = array ();
foreach ( $list as $key => $obj ) {
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$to_match = ( array ) $obj ;
$matched = 0 ;
foreach ( $args as $m_key => $m_value ) {
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if ( array_key_exists ( $m_key , $to_match ) && $m_value == $to_match [ $m_key ] )
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$matched ++ ;
}
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if ( ( 'AND' == $operator && $matched == $count )
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|| ( 'OR' == $operator && $matched > 0 )
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|| ( 'NOT' == $operator && 0 == $matched ) ) {
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$filtered [ $key ] = $obj ;
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}
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}
return $filtered ;
}
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/**
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* Pluck a certain field out of each object in a list .
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*
* @ since 3.1 . 0
*
* @ param array $list A list of objects or arrays
* @ param int | string $field A field from the object to place instead of the entire object
* @ return array
*/
function wp_list_pluck ( $list , $field ) {
foreach ( $list as $key => $value ) {
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if ( is_object ( $value ) )
$list [ $key ] = $value -> $field ;
else
$list [ $key ] = $value [ $field ];
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}
return $list ;
}
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/**
* Determines if Widgets library should be loaded .
*
* Checks to make sure that the widgets library hasn ' t already been loaded . If
* it hasn ' t , then it will load the widgets library and run an action hook .
*
* @ since 2.2 . 0
* @ uses add_action () Calls '_admin_menu' hook with 'wp_widgets_add_menu' value .
*/
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function wp_maybe_load_widgets () {
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if ( ! apply_filters ( 'load_default_widgets' , true ) )
return ;
require_once ( ABSPATH . WPINC . '/default-widgets.php' );
add_action ( '_admin_menu' , 'wp_widgets_add_menu' );
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}
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/**
* Append the Widgets menu to the themes main menu .
*
* @ since 2.2 . 0
* @ uses $submenu The administration submenu list .
*/
2007-05-06 22:36:11 +02:00
function wp_widgets_add_menu () {
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global $submenu ;
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if ( ! current_theme_supports ( 'widgets' ) )
return ;
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$submenu [ 'themes.php' ][ 7 ] = array ( __ ( 'Widgets' ), 'edit_theme_options' , 'widgets.php' );
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ksort ( $submenu [ 'themes.php' ], SORT_NUMERIC );
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}
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/**
* Flush all output buffers for PHP 5.2 .
*
* Make sure all output buffers are flushed before our singletons our destroyed .
*
* @ since 2.2 . 0
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*/
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function wp_ob_end_flush_all () {
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$levels = ob_get_level ();
for ( $i = 0 ; $i < $levels ; $i ++ )
ob_end_flush ();
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}
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/**
* 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 .
*
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* This function was backported to the the WordPress 2.3 . 2 , but originally was
* added in WordPress 2.5 . 0.
*
* @ since 2.3 . 2
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* @ uses $wpdb
*/
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function dead_db () {
global $wpdb ;
// Load custom DB error template, if present.
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if ( file_exists ( WP_CONTENT_DIR . '/db-error.php' ) ) {
require_once ( WP_CONTENT_DIR . '/db-error.php' );
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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' );
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wp_load_translations_early ();
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?>
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<! DOCTYPE html >
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< html xmlns = " http://www.w3.org/1999/xhtml " < ? php if ( is_rtl () ) echo ' dir="rtl"' ; ?> >
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< head >
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< meta http - equiv = " Content-Type " content = " text/html; charset=utf-8 " />
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< title >< ? php _e ( 'Database Error' ); ?> </title>
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</ head >
< body >
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< h1 >< ? php _e ( 'Error establishing a database connection' ); ?> </h1>
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</ body >
</ html >
< ? php
die ();
}
2007-10-11 07:46:57 +02:00
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/**
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* Converts value to nonnegative integer .
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*
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* @ since 2.5 . 0
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*
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* @ param mixed $maybeint Data you wish to have converted to a nonnegative integer
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* @ return int An nonnegative integer
2007-10-11 00:11:18 +02:00
*/
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function absint ( $maybeint ) {
return abs ( intval ( $maybeint ) );
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}
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/**
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* Determines if the blog can be accessed over SSL .
*
* Determines if blog can be accessed over SSL by using cURL to access the site
* using the https in the siteurl . Requires cURL extension to work correctly .
*
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* @ since 2.5 . 0
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*
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* @ param string $url
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* @ return bool Whether SSL access is available
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*/
function url_is_accessable_via_ssl ( $url )
{
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if ( in_array ( 'curl' , get_loaded_extensions () ) ) {
$ssl = set_url_scheme ( $url , 'https' );
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2008-08-09 06:51:51 +02:00
$ch = curl_init ();
curl_setopt ( $ch , CURLOPT_URL , $ssl );
curl_setopt ( $ch , CURLOPT_FAILONERROR , true );
curl_setopt ( $ch , CURLOPT_RETURNTRANSFER , true );
curl_setopt ( $ch , CURLOPT_SSL_VERIFYPEER , false );
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curl_setopt ( $ch , CURLOPT_CONNECTTIMEOUT , 5 );
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curl_exec ( $ch );
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2008-08-09 06:51:51 +02:00
$status = curl_getinfo ( $ch , CURLINFO_HTTP_CODE );
curl_close ( $ch );
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if ( $status == 200 || $status == 401 ) {
return true ;
}
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}
return false ;
}
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/**
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* Marks a function as deprecated and informs when it has been used .
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*
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* 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 .
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*
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* The current behavior is to trigger a user error if WP_DEBUG is true .
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*
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* This function is to be used in every function that is deprecated .
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*
* @ package WordPress
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* @ subpackage Debug
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* @ since 2.5 . 0
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* @ access private
*
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* @ uses do_action () Calls 'deprecated_function_run' and passes the function name , what to use instead ,
* and the version the function was deprecated in .
* @ uses apply_filters () Calls 'deprecated_function_trigger_error' and expects boolean value of true to do
* trigger or false to not trigger error .
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*
* @ param string $function The function that was called
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* @ param string $version The version of WordPress that deprecated the function
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* @ param string $replacement Optional . The function that should have been called
*/
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function _deprecated_function ( $function , $version , $replacement = null ) {
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do_action ( 'deprecated_function_run' , $function , $replacement , $version );
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// Allow plugin to filter the output error trigger
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if ( WP_DEBUG && apply_filters ( 'deprecated_function_trigger_error' , true ) ) {
if ( ! is_null ( $replacement ) )
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trigger_error ( sprintf ( __ ( '%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.' ), $function , $version , $replacement ) );
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else
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trigger_error ( sprintf ( __ ( '%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.' ), $function , $version ) );
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}
}
/**
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* Marks a file as deprecated and informs when it has been used .
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*
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* 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 .
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*
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* The current behavior is to trigger a user error if WP_DEBUG is true .
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*
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* This function is to be used in every file that is deprecated .
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*
* @ package WordPress
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* @ subpackage Debug
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* @ since 2.5 . 0
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* @ access private
*
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* @ uses do_action () Calls 'deprecated_file_included' and passes the file name , what to use instead ,
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* the version in which the file was deprecated , and any message regarding the change .
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* @ uses apply_filters () Calls 'deprecated_file_trigger_error' and expects boolean value of true to do
* trigger or false to not trigger error .
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*
* @ param string $file The file that was included
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* @ param string $version The version of WordPress that deprecated the file
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* @ param string $replacement Optional . The file that should have been included based on ABSPATH
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* @ param string $message Optional . A message regarding the change
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*/
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function _deprecated_file ( $file , $version , $replacement = null , $message = '' ) {
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do_action ( 'deprecated_file_included' , $file , $replacement , $version , $message );
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// Allow plugin to filter the output error trigger
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if ( WP_DEBUG && apply_filters ( 'deprecated_file_trigger_error' , true ) ) {
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$message = empty ( $message ) ? '' : ' ' . $message ;
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if ( ! is_null ( $replacement ) )
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trigger_error ( sprintf ( __ ( '%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.' ), $file , $version , $replacement ) . $message );
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else
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trigger_error ( sprintf ( __ ( '%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.' ), $file , $version ) . $message );
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}
}
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/**
* Marks a function argument as deprecated and informs when it has been used .
*
* This function is to be used whenever a deprecated function argument is used .
* Before this function is called , the argument must be checked for whether it was
* used by comparing it to its default value or evaluating whether it is empty .
* For example :
* < code >
* if ( ! empty ( $deprecated ) )
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* _deprecated_argument ( __FUNCTION__ , '3.0' );
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* </ 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 .
*
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* The current behavior is to trigger a user error if WP_DEBUG is true .
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*
* @ package WordPress
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* @ subpackage Debug
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* @ since 3.0 . 0
* @ access private
*
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* @ uses do_action () Calls 'deprecated_argument_run' and passes the function name , a message on the change ,
* and the version in which the argument was deprecated .
* @ uses apply_filters () Calls 'deprecated_argument_trigger_error' and expects boolean value of true to do
* trigger or false to not trigger error .
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*
* @ param string $function The function that was called
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* @ param string $version The version of WordPress that deprecated the argument used
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* @ param string $message Optional . A message regarding the change .
*/
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function _deprecated_argument ( $function , $version , $message = null ) {
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do_action ( 'deprecated_argument_run' , $function , $message , $version );
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// Allow plugin to filter the output error trigger
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if ( WP_DEBUG && apply_filters ( 'deprecated_argument_trigger_error' , true ) ) {
if ( ! is_null ( $message ) )
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trigger_error ( sprintf ( __ ( '%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s' ), $function , $version , $message ) );
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else
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trigger_error ( sprintf ( __ ( '%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.' ), $function , $version ) );
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}
}
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/**
* Marks 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 .
*
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* The current behavior is to trigger a user error if WP_DEBUG is true .
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*
* @ package WordPress
* @ subpackage Debug
* @ since 3.1 . 0
* @ access private
*
* @ uses do_action () Calls 'doing_it_wrong_run' and passes the function arguments .
* @ uses apply_filters () Calls 'doing_it_wrong_trigger_error' and expects boolean value of true to do
* trigger or false to not trigger error .
*
* @ param string $function The function that was called .
* @ param string $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 ) {
do_action ( 'doing_it_wrong_run' , $function , $message , $version );
// Allow plugin to filter the output error trigger
if ( WP_DEBUG && apply_filters ( 'doing_it_wrong_trigger_error' , true ) ) {
$version = is_null ( $version ) ? '' : sprintf ( __ ( '(This message was added in version %s.)' ), $version );
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$message .= ' ' . __ ( 'Please see <a href="http://codex.wordpress.org/Debugging_in_WordPress">Debugging in WordPress</a> for more information.' );
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trigger_error ( sprintf ( __ ( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s' ), $function , $message , $version ) );
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}
}
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/**
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* Is the server running earlier than 1.5 . 0 version of lighttpd ?
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*
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* @ since 2.5 . 0
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*
* @ 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' );
}
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/**
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* Does the specified module exist in the Apache config ?
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*
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* @ since 2.5 . 0
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*
* @ param string $mod e . g . mod_rewrite
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* @ param bool $default The default return value if the module is not found
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* @ return bool
*/
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function apache_mod_loaded ( $mod , $default = false ) {
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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 ;
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} elseif ( function_exists ( 'phpinfo' ) ) {
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ob_start ();
phpinfo ( 8 );
$phpinfo = ob_get_clean ();
if ( false !== strpos ( $phpinfo , $mod ) )
return true ;
}
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return $default ;
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}
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/**
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* Check if IIS 7 supports pretty permalinks .
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*
* @ since 2.8 . 0
*
* @ return bool
*/
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 ,
* which is the case for PHP 4. X , then we cannot easily update the xml configuration file ,
* hence we just bail out and tell user that pretty permalinks cannot be used .
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* This is not a big issue because PHP 4. X is going to be deprecated and for IIS it
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* is recommended to use PHP 5. X NTS .
* 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' );
}
return apply_filters ( 'iis7_supports_permalinks' , $supports_permalinks );
}
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/**
* 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 .
*
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* @ since 1.2 . 0
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*
* @ 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 .
*/
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function validate_file ( $file , $allowed_files = '' ) {
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if ( false !== strpos ( $file , '..' ) )
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return 1 ;
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if ( false !== strpos ( $file , './' ) )
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return 1 ;
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if ( ! empty ( $allowed_files ) && ! in_array ( $file , $allowed_files ) )
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return 3 ;
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if ( ':' == substr ( $file , 1 , 1 ) )
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return 2 ;
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return 0 ;
}
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/**
* Determine if SSL is used .
*
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* @ since 2.6 . 0
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*
* @ return bool True if SSL , false if not used .
*/
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function is_ssl () {
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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 ;
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}
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/**
* Whether SSL login should be forced .
*
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* @ since 2.6 . 0
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*
* @ param string | bool $force Optional .
* @ return bool True if forced , false if not forced .
*/
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function force_ssl_login ( $force = null ) {
static $forced = false ;
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if ( ! is_null ( $force ) ) {
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$old_forced = $forced ;
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$forced = $force ;
return $old_forced ;
}
return $forced ;
}
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/**
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* Whether to force SSL used for the Administration Screens .
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*
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* @ since 2.6 . 0
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*
* @ param string | bool $force
* @ return bool True if forced , false if not forced .
*/
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function force_ssl_admin ( $force = null ) {
static $forced = false ;
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if ( ! is_null ( $force ) ) {
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$old_forced = $forced ;
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$forced = $force ;
return $old_forced ;
}
return $forced ;
}
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/**
* Guess the URL for the site .
*
* Will remove wp - admin links to retrieve only return URLs not in the wp - admin
* directory .
*
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* @ since 2.6 . 0
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*
* @ return string
*/
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function wp_guess_url () {
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if ( defined ( 'WP_SITEURL' ) && '' != WP_SITEURL ) {
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$url = WP_SITEURL ;
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} else {
$schema = is_ssl () ? 'https://' : 'http://' ; // set_url_scheme() is not defined yet
$url = preg_replace ( '#/(wp-admin/.*|wp-login.php)#i' , '' , $schema . $_SERVER [ 'HTTP_HOST' ] . $_SERVER [ 'REQUEST_URI' ] );
}
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return rtrim ( $url , '/' );
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}
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/**
* 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 ;
}
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/**
* Suspend cache invalidation .
*
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* 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
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* cache when invalidation is suspended .
*
* @ since 2.7 . 0
*
* @ param bool $suspend Whether to suspend or enable cache invalidation
* @ return bool The current suspend setting
*/
function wp_suspend_cache_invalidation ( $suspend = true ) {
global $_wp_suspend_cache_invalidation ;
$current_suspend = $_wp_suspend_cache_invalidation ;
$_wp_suspend_cache_invalidation = $suspend ;
return $current_suspend ;
}
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/**
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* Is main site ?
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*
*
* @ since 3.0 . 0
* @ package WordPress
*
* @ param int $blog_id optional blog id to test ( default current blog )
* @ return bool True if not multisite or $blog_id is main site
*/
function is_main_site ( $blog_id = '' ) {
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global $current_site ;
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if ( ! is_multisite () )
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return true ;
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if ( ! $blog_id )
$blog_id = get_current_blog_id ();
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return $blog_id == $current_site -> blog_id ;
}
2010-03-16 18:17:55 +01:00
/**
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* Whether global terms are enabled .
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*
*
* @ since 3.0 . 0
* @ package WordPress
*
* @ return bool True if multisite and global terms enabled
*/
function global_terms_enabled () {
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if ( ! is_multisite () )
return false ;
2010-03-16 18:17:55 +01:00
2010-05-03 00:08:05 +02:00
static $global_terms = null ;
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if ( is_null ( $global_terms ) ) {
$filter = apply_filters ( 'global_terms_enabled' , null );
if ( ! is_null ( $filter ) )
$global_terms = ( bool ) $filter ;
else
$global_terms = ( bool ) get_site_option ( 'global_terms_enabled' , false );
}
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return $global_terms ;
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}
2009-03-10 01:50:00 +01:00
/**
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* gmt_offset modification for smart timezone handling .
2009-03-18 03:43:45 +01:00
*
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* Overrides the gmt_offset option if we have a timezone_string available .
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*
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* @ since 2.8 . 0
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*
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* @ return float | bool
2009-03-10 01:50:00 +01:00
*/
function wp_timezone_override_offset () {
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if ( ! $timezone_string = get_option ( 'timezone_string' ) ) {
return false ;
}
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$timezone_object = timezone_open ( $timezone_string );
$datetime_object = date_create ();
if ( false === $timezone_object || false === $datetime_object ) {
return false ;
}
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return round ( timezone_offset_get ( $timezone_object , $datetime_object ) / HOUR_IN_SECONDS , 2 );
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}
2010-02-13 09:59:04 +01:00
/**
* { @ internal Missing Short Description }}
*
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* @ since 2.9 . 0
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*
* @ param unknown_type $a
* @ param unknown_type $b
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* @ return int
2010-02-13 09:59:04 +01:00
*/
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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' ] );
}
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}
/**
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* Gives a nicely formatted list of timezone strings . // temporary! Not in final
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*
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* @ since 2.9 . 0
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*
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* @ param string $selected_zone Selected Zone
* @ return string
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*/
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function wp_timezone_choice ( $selected_zone ) {
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static $mo_loaded = false ;
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$continents = array ( 'Africa' , 'America' , 'Antarctica' , 'Arctic' , 'Asia' , 'Atlantic' , 'Australia' , 'Europe' , 'Indian' , 'Pacific' );
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// Load translations for continents and cities
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if ( ! $mo_loaded ) {
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$locale = get_locale ();
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$mofile = WP_LANG_DIR . '/continents-cities-' . $locale . '.mo' ;
load_textdomain ( 'continents-cities' , $mofile );
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$mo_loaded = true ;
}
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$zonen = array ();
foreach ( timezone_identifiers_list () as $zone ) {
$zone = explode ( '/' , $zone );
if ( ! in_array ( $zone [ 0 ], $continents ) ) {
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continue ;
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}
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// This determines what gets set and translated - we don't translate Etc/* strings here, they are done later
$exists = array (
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0 => ( isset ( $zone [ 0 ] ) && $zone [ 0 ] ),
1 => ( isset ( $zone [ 1 ] ) && $zone [ 1 ] ),
2 => ( isset ( $zone [ 2 ] ) && $zone [ 2 ] ),
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);
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$exists [ 3 ] = ( $exists [ 0 ] && 'Etc' !== $zone [ 0 ] );
$exists [ 4 ] = ( $exists [ 1 ] && $exists [ 3 ] );
$exists [ 5 ] = ( $exists [ 2 ] && $exists [ 3 ] );
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$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' ];
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} else {
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// It's inside a continent group
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// Continent optgroup
if ( ! isset ( $zonen [ $key - 1 ] ) || $zonen [ $key - 1 ][ 'continent' ] !== $zone [ 'continent' ] ) {
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$label = $zone [ 't_continent' ];
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$structure [] = '<optgroup label="' . esc_attr ( $label ) . '">' ;
}
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// Add the city to the value
$value [] = $zone [ 'city' ];
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$display = $zone [ 't_city' ];
if ( ! empty ( $zone [ 'subcity' ] ) ) {
// Add the subcity to the value
$value [] = $zone [ 'subcity' ];
$display .= ' - ' . $zone [ 't_subcity' ];
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}
}
// 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> " ;
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// Close continent optgroup
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if ( ! empty ( $zone [ 'city' ] ) && ( ! isset ( $zonen [ $key + 1 ]) || ( isset ( $zonen [ $key + 1 ] ) && $zonen [ $key + 1 ][ 'continent' ] !== $zone [ 'continent' ]) ) ) {
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$structure [] = '</optgroup>' ;
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}
}
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// 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> " ;
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}
$structure [] = '</optgroup>' ;
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return join ( " \n " , $structure );
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}
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/**
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* Strip close comment and close php tags from file headers used by WP .
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* See http :// core . trac . wordpress . org / ticket / 8497
*
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* @ since 2.8 . 0
*
* @ param string $str
* @ return string
*/
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function _cleanup_header_comment ( $str ) {
return trim ( preg_replace ( " / \ s*(?: \ * \ /| \ ?>).*/ " , '' , $str ));
}
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/**
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* Permanently deletes posts , pages , attachments , and comments which have been in the trash for EMPTY_TRASH_DAYS .
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*
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* @ since 2.9 . 0
*/
function wp_scheduled_delete () {
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global $wpdb ;
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$delete_timestamp = time () - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS );
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$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 );
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foreach ( ( array ) $posts_to_delete as $post ) {
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$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 ( $post_id );
}
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}
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$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 );
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foreach ( ( array ) $comments_to_delete as $comment ) {
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$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 );
}
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}
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}
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/**
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* Retrieve metadata from a file .
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*
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* Searches for metadata in the first 8 kiB of a file , such as a plugin or theme .
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* Each piece of metadata must be on its own line . Fields can not span multiple
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* lines , the value will get cut at the end of the first line .
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*
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* If the file data is not within that first 8 kiB , then the author should correct
* their plugin file and move the data headers to the top .
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*
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* @ see http :// codex . wordpress . org / File_Header
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*
* @ since 2.9 . 0
* @ param string $file Path to the file
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* @ param array $default_headers List of headers , in the format array ( 'HeaderKey' => 'Header Name' )
* @ param string $context If specified adds filter hook " extra_ { $context } _headers "
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*/
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 );
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// Make sure we catch CR-only line endings.
$file_data = str_replace ( " \r " , " \n " , $file_data );
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if ( $context && $extra_headers = apply_filters ( " extra_ { $context } _headers " , array () ) ) {
$extra_headers = array_combine ( $extra_headers , $extra_headers ); // keys equal values
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$all_headers = array_merge ( $extra_headers , ( array ) $default_headers );
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} else {
$all_headers = $default_headers ;
}
foreach ( $all_headers as $field => $regex ) {
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if ( preg_match ( '/^[ \t\/*#@]*' . preg_quote ( $regex , '/' ) . ':(.*)$/mi' , $file_data , $match ) && $match [ 1 ] )
$all_headers [ $field ] = _cleanup_header_comment ( $match [ 1 ] );
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else
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$all_headers [ $field ] = '' ;
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}
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return $all_headers ;
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}
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/**
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* Used internally to tidy up the search terms .
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*
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* @ access private
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* @ since 2.9 . 0
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*
* @ param string $t
* @ return string
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*/
function _search_terms_tidy ( $t ) {
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return trim ( $t , " \" ' \n \r " );
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}
2010-02-25 22:56:28 +01:00
2010-03-01 09:50:27 +01:00
/**
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* Returns true .
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*
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* Useful for returning true to filters easily .
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*
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* @ since 3.0 . 0
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* @ see __return_false ()
* @ return bool true
*/
function __return_true () {
return true ;
}
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/**
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* Returns false .
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*
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* Useful for returning false to filters easily .
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*
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* @ since 3.0 . 0
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* @ see __return_true ()
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* @ return bool false
*/
function __return_false () {
return false ;
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}
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/**
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* Returns 0.
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*
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* Useful for returning 0 to filters easily .
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*
* @ since 3.0 . 0
* @ see __return_zero ()
* @ return int 0
*/
function __return_zero () {
return 0 ;
}
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/**
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* Returns an empty array .
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*
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* Useful for returning an empty array to filters easily .
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*
* @ since 3.0 . 0
* @ see __return_zero ()
* @ return array Empty array
*/
function __return_empty_array () {
return array ();
}
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/**
* Returns null .
*
* Useful for returning null to filters easily .
*
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* @ since 3.4 . 0
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* @ return null
*/
function __return_null () {
return null ;
}
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/**
* Send a HTTP header to disable content type sniffing in browsers which support it .
*
* @ link http :// blogs . msdn . com / ie / archive / 2008 / 07 / 02 / ie8 - security - part - v - comprehensive - protection . aspx
* @ link http :// src . chromium . org / viewvc / chrome ? view = rev & revision = 6985
*
* @ since 3.0 . 0
* @ return none
*/
function send_nosniff_header () {
@ header ( 'X-Content-Type-Options: nosniff' );
}
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/**
* Returns a MySQL expression for selecting the week number based on the start_of_week option .
*
* @ internal
* @ since 3.0 . 0
* @ param string $column
* @ return string
*/
function _wp_mysql_week ( $column ) {
switch ( $start_of_week = ( int ) get_option ( 'start_of_week' ) ) {
default :
case 0 :
return " WEEK( $column , 0 ) " ;
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 ) " ;
}
}
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/**
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* Finds hierarchy loops using a callback function that maps object IDs to parent IDs .
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*
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* @ since 3.1 . 0
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* @ access private
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*
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* @ param callback $callback function that accepts ( ID , $callback_args ) and outputs parent_ID
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* @ param 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
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* @ param array $callback_args optional additional arguments to send to $callback
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* @ return array IDs of all members of loop
*/
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 );
}
/**
* Uses 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 .
*
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* @ since 3.1 . 0
* @ access private
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*
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* @ param callback $callback function that accepts ( ID , callback_arg , ... ) and outputs parent_ID
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* @ param int $start The ID to start the loop check at
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* @ param array $override an array of ( ID => parent_ID , ... ) to use instead of $callback
* @ param array $callback_args optional additional arguments to send to $callback
* @ param bool $_return_loop 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 )
* @ 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 ;
}
2010-10-18 19:58:36 +02:00
2011-05-06 23:28:53 +02:00
/**
* Send a HTTP header to limit rendering of pages to same origin iframes .
*
* @ link https :// developer . mozilla . org / en / the_x - frame - options_response_header
*
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* @ since 3.1 . 3
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* @ return none
*/
function send_frame_options_header () {
@ header ( 'X-Frame-Options: SAMEORIGIN' );
}
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/**
* 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 ( $protocols ) ) {
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$protocols = array ( 'http' , 'https' , 'ftp' , 'ftps' , 'mailto' , 'news' , 'irc' , 'gopher' , 'nntp' , 'feed' , 'telnet' , 'mms' , 'rtsp' , 'svn' , 'tel' , 'fax' , 'xmpp' );
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$protocols = apply_filters ( 'kses_allowed_protocols' , $protocols );
}
return $protocols ;
}
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/**
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* Return a comma separated string of functions that have been called to get to the current point in code .
*
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* @ link http :// core . trac . wordpress . org / ticket / 19589
* @ since 3.4
*
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* @ param string $ignore_class A class to ignore all function calls within - useful when you want to just give info about the callee
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* @ param int $skip_frames A number of stack frames to skip - useful for unwinding back to the source of the issue
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* @ param bool $pretty Whether or not you want a comma separated string or raw array returned
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* @ return string | array Either a string containing a reversed comma separated trace or an array of individual calls .
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*/
function wp_debug_backtrace_summary ( $ignore_class = null , $skip_frames = 0 , $pretty = true ) {
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if ( version_compare ( PHP_VERSION , '5.2.5' , '>=' ) )
$trace = debug_backtrace ( false );
else
$trace = debug_backtrace ();
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$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 ;
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}
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/**
* Retrieve ids that are not already present in the cache
*
* @ since 3.4 . 0
*
* @ param array $object_ids ID list
* @ param string $cache_key The cache bucket to check against
*
* @ return array
*/
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 ;
}
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/**
* Test if the current device has the capability to upload files .
*
* @ since 3.4 . 0
* @ access private
*
* @ return bool true | false
*/
function _device_can_upload () {
if ( ! wp_is_mobile () )
return true ;
$ua = $_SERVER [ 'HTTP_USER_AGENT' ];
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if ( strpos ( $ua , 'iPhone' ) !== false
|| strpos ( $ua , 'iPad' ) !== false
|| strpos ( $ua , 'iPod' ) !== false ) {
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return preg_match ( '#OS ([\d_]+) like Mac OS X#' , $ua , $version ) && version_compare ( $version [ 1 ], '6' , '>=' );
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}
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return true ;
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}
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/**
* 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 ;
}
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/**
* Test if the supplied date is valid for the Gregorian calendar
*
* @ since 3.5 . 0
*
* @ return bool true | false
*/
function wp_checkdate ( $month , $day , $year , $source_date ) {
return apply_filters ( 'wp_checkdate' , checkdate ( $month , $day , $year ), $source_date );
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}