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< ? php
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/**
* Main WordPress API
*
* @ package WordPress
*/
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/**
* Converts MySQL DATETIME field to user specified date format .
*
* If $dateformatstring has 'G' value , then gmmktime () function will be used to
* make the time . If $dateformatstring is set to 'U' , then mktime () function
* will be used to make the time .
*
* The $translate will only be used , if it is set to true and it is by default
* and if the $wp_locale object has the month and weekday set .
*
* @ since 0.71
*
* @ param string $dateformatstring Either 'G' , 'U' , or php date format .
* @ param string $mysqlstring Time from mysql DATETIME field .
* @ param bool $translate Optional . Default is true . Will switch format to locale .
* @ return string Date formated by $dateformatstring or locale ( if available ) .
*/
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function mysql2date ( $dateformatstring , $mysqlstring , $translate = true ) {
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global $wp_locale ;
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$m = $mysqlstring ;
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if ( empty ( $m ) )
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return false ;
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if ( 'G' == $dateformatstring ) {
return gmmktime (
( int ) substr ( $m , 11 , 2 ), ( int ) substr ( $m , 14 , 2 ), ( int ) substr ( $m , 17 , 2 ),
( int ) substr ( $m , 5 , 2 ), ( int ) substr ( $m , 8 , 2 ), ( int ) substr ( $m , 0 , 4 )
);
}
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$i = mktime (
( int ) substr ( $m , 11 , 2 ), ( int ) substr ( $m , 14 , 2 ), ( int ) substr ( $m , 17 , 2 ),
( int ) substr ( $m , 5 , 2 ), ( int ) substr ( $m , 8 , 2 ), ( int ) substr ( $m , 0 , 4 )
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);
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if ( 'U' == $dateformatstring )
return $i ;
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if ( - 1 == $i || false == $i )
$i = 0 ;
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if ( ! empty ( $wp_locale -> month ) && ! empty ( $wp_locale -> weekday ) && $translate ) {
$datemonth = $wp_locale -> get_month ( date ( 'm' , $i ) );
$datemonth_abbrev = $wp_locale -> get_month_abbrev ( $datemonth );
$dateweekday = $wp_locale -> get_weekday ( date ( 'w' , $i ) );
$dateweekday_abbrev = $wp_locale -> get_weekday_abbrev ( $dateweekday );
$datemeridiem = $wp_locale -> get_meridiem ( date ( 'a' , $i ) );
$datemeridiem_capital = $wp_locale -> get_meridiem ( date ( 'A' , $i ) );
$dateformatstring = ' ' . $dateformatstring ;
$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 ( $dateformatstring ) - 1 );
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}
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$j = @ date ( $dateformatstring , $i );
/*
if ( ! $j ) // for debug purposes
echo $i . " " . $mysqlstring ;
*/
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return $j ;
}
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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 .
*
* If the $gmt is set to either '1' or 'true' , then both types will use the
* GMT offset in the WordPress option to add the GMT offset to the time .
*
* @ since 1.0 . 0
*
* @ param string $type Either 'mysql' or 'timestamp' .
* @ param int | bool $gmt Optional . Whether to use $gmt offset . 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' ) * 3600 ) ) );
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break ;
case 'timestamp' :
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return ( $gmt ) ? time () : time () + ( get_option ( 'gmt_offset' ) * 3600 );
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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
*
* @ param string $dateformatstring Format to display the date
* @ param int $unixtimestamp Unix timestamp
* @ return string The date , translated if locale specifies it .
*/
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function date_i18n ( $dateformatstring , $unixtimestamp ) {
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global $wp_locale ;
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$i = $unixtimestamp ;
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// Sanity check for PHP 5.1.0-
if ( - 1 == $i )
$i = false ;
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if ( ( ! empty ( $wp_locale -> month ) ) && ( ! empty ( $wp_locale -> weekday ) ) ) {
$datemonth = $wp_locale -> get_month ( date ( 'm' , $i ) );
$datemonth_abbrev = $wp_locale -> get_month_abbrev ( $datemonth );
$dateweekday = $wp_locale -> get_weekday ( date ( 'w' , $i ) );
$dateweekday_abbrev = $wp_locale -> get_weekday_abbrev ( $dateweekday );
$datemeridiem = $wp_locale -> get_meridiem ( date ( 'a' , $i ) );
$datemeridiem_capital = $wp_locale -> get_meridiem ( date ( '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 ( $dateformatstring ) - 1 );
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}
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$j = @ date ( $dateformatstring , $i );
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return $j ;
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}
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/**
* Convert number to format based on the locale .
*
* @ since 2.3 . 0
*
* @ param mixed $number The number to convert based on locale .
* @ param int $decimals Precision of the number of decimal places .
* @ return string Converted number in string format .
*/
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function number_format_i18n ( $number , $decimals = null ) {
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global $wp_locale ;
// let the user override the precision only
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$decimals = ( is_null ( $decimals ) ) ? $wp_locale -> number_format [ 'decimals' ] : intval ( $decimals );
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return number_format ( $number , $decimals , $wp_locale -> number_format [ 'decimal_point' ], $wp_locale -> number_format [ 'thousands_sep' ] );
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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 .
* @ param int $decimals Precision of number of decimal places .
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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 , $decimals = null ) {
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$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
$i = 86400 ; // One day
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if ( ! is_numeric ( $start_of_week ) )
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$start_of_week = get_option ( 'start_of_week' );
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if ( $weekday < $start_of_week )
$weekday = 7 - $start_of_week - $weekday ;
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while ( $weekday > $start_of_week ) {
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$weekday = date ( 'w' , $day );
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if ( $weekday < $start_of_week )
$weekday = 7 - $start_of_week - $weekday ;
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$day -= 86400 ;
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$i = 0 ;
}
$week [ 'start' ] = $day + 86400 - $i ;
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$week [ 'end' ] = $week [ 'start' ] + 604799 ;
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return $week ;
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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
if ( false !== $gm = @ unserialize ( $original ) )
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return $gm ;
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 ( $data ) )
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return false ;
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$data = trim ( $data );
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if ( 'N;' == $data )
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return true ;
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if ( ! preg_match ( '/^([adObis]):/' , $data , $badions ) )
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return false ;
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switch ( $badions [ 1 ] ) {
case 'a' :
case 'O' :
case 's' :
if ( preg_match ( " /^ { $badions [ 1 ] } :[0-9]+:.*[;}] \$ /s " , $data ) )
return true ;
break ;
case 'b' :
case 'i' :
case 'd' :
if ( preg_match ( " /^ { $badions [ 1 ] } :[0-9.E-]+; \$ / " , $data ) )
return true ;
break ;
}
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return false ;
}
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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 ( $data );
if ( preg_match ( '/^s:[0-9]+:.*;$/s' , $data ) ) // this should fetch all serialized strings
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return true ;
return false ;
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}
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/**
* Retrieve option value based on setting name .
*
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* If the option does not exist or does not have a value , then the return value
* will be false . This is useful to check whether you need to install an option
* and is commonly used during installation of plugin options and to test
* whether upgrading is required .
*
* You can " short-circuit " the retrieval of the option from the database for
* your plugin or core options that aren ' t protected . You can do so by hooking
* into the 'pre_option_$option' with the $option being replaced by the option
* name . You should not try to override special options , but you will not be
* prevented from doing so .
*
* There is a second filter called 'option_$option' with the $option being
* replaced with the option name . This gives the value as the only parameter .
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*
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* If the option was serialized , when the option was added and , or updated , then
* it will be unserialized , when it is returned .
*
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* @ since 1.5 . 0
* @ package WordPress
* @ subpackage Option
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* @ uses apply_filters () Calls 'pre_option_$optionname' false to allow
* overwriting the option value in a plugin .
* @ uses apply_filters () Calls 'option_$optionname' with the option name value .
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*
* @ param string $setting Name of option to retrieve . Should already be SQL - escaped
* @ return mixed Value set for the option .
*/
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function get_option ( $setting ) {
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global $wpdb ;
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// Allow plugins to short-circuit options.
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$pre = apply_filters ( 'pre_option_' . $setting , false );
if ( false !== $pre )
return $pre ;
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// prevent non-existent options from triggering multiple queries
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$notoptions = wp_cache_get ( 'notoptions' , 'options' );
if ( isset ( $notoptions [ $setting ] ) )
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return false ;
$alloptions = wp_load_alloptions ();
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if ( isset ( $alloptions [ $setting ] ) ) {
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$value = $alloptions [ $setting ];
} else {
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$value = wp_cache_get ( $setting , 'options' );
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if ( false === $value ) {
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if ( defined ( 'WP_INSTALLING' ) )
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$suppress = $wpdb -> suppress_errors ();
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// expected_slashed ($setting)
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$row = $wpdb -> get_row ( " SELECT option_value FROM $wpdb->options WHERE option_name = ' $setting ' LIMIT 1 " );
if ( defined ( 'WP_INSTALLING' ) )
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$wpdb -> suppress_errors ( $suppress );
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if ( is_object ( $row ) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
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$value = $row -> option_value ;
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wp_cache_add ( $setting , $value , 'options' );
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} else { // option does not exist, so we must cache its non-existence
$notoptions [ $setting ] = true ;
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wp_cache_set ( 'notoptions' , $notoptions , 'options' );
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return false ;
}
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}
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}
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// If home is not set use siteurl.
if ( 'home' == $setting && '' == $value )
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return get_option ( 'siteurl' );
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if ( in_array ( $setting , array ( 'siteurl' , 'home' , 'category_base' , 'tag_base' ) ) )
$value = untrailingslashit ( $value );
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return apply_filters ( 'option_' . $setting , maybe_unserialize ( $value ) );
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}
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/**
* Protect WordPress special option from being modified .
*
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* Will die if $option is in protected list . Protected options are 'alloptions'
* and 'notoptions' options .
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*
* @ since 2.2 . 0
* @ package WordPress
* @ subpackage Option
*
* @ param string $option Option name .
*/
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function wp_protect_special_option ( $option ) {
$protected = array ( 'alloptions' , 'notoptions' );
if ( in_array ( $option , $protected ) )
die ( sprintf ( __ ( '%s is a protected WP option and may not be modified' ), wp_specialchars ( $option ) ) );
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}
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/**
* Print option value after sanitizing for forms .
*
* @ uses attribute_escape Sanitizes value .
* @ since 1.5 . 0
* @ package WordPress
* @ subpackage Option
*
* @ param string $option Option name .
*/
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function form_option ( $option ) {
echo attribute_escape ( get_option ( $option ) );
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}
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/**
* Retrieve all autoload options or all options , if no autoloaded ones exist .
*
* This is different from wp_load_alloptions (), in this that function does not
* cache all options and will retrieve all options from the database every time
* it is called .
*
* @ since 1.0 . 0
* @ package WordPress
* @ subpackage Option
* @ uses apply_filters () Calls 'pre_option_$optionname' hook with option value as parameter .
* @ uses apply_filters () Calls 'all_options' on options list .
*
* @ return array List of all options .
*/
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function get_alloptions () {
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global $wpdb ;
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$show = $wpdb -> hide_errors ();
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if ( ! $options = $wpdb -> get_results ( " SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes' " ) )
$options = $wpdb -> get_results ( " SELECT option_name, option_value FROM $wpdb->options " );
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$wpdb -> show_errors ( $show );
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foreach ( ( array ) $options as $option ) {
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// "When trying to design a foolproof system,
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// never underestimate the ingenuity of the fools :)" -- Dougal
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if ( in_array ( $option -> option_name , array ( 'siteurl' , 'home' , 'category_base' , 'tag_base' ) ) )
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$option -> option_value = untrailingslashit ( $option -> option_value );
$value = maybe_unserialize ( $option -> option_value );
$all_options -> { $option -> option_name } = apply_filters ( 'pre_option_' . $option -> option_name , $value );
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}
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return apply_filters ( 'all_options' , $all_options );
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}
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/**
* Loads and caches all autoloaded options , if available or all options .
*
* This is different from get_alloptions (), in that this function will cache the
* options and will return the cached options when called again .
*
* @ since 2.2 . 0
* @ package WordPress
* @ subpackage Option
*
* @ return array List all options .
*/
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function wp_load_alloptions () {
global $wpdb ;
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$alloptions = wp_cache_get ( 'alloptions' , 'options' );
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if ( ! $alloptions ) {
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$suppress = $wpdb -> suppress_errors ();
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if ( ! $alloptions_db = $wpdb -> get_results ( " SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes' " ) )
$alloptions_db = $wpdb -> get_results ( " SELECT option_name, option_value FROM $wpdb->options " );
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$wpdb -> suppress_errors ( $suppress );
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$alloptions = array ();
foreach ( ( array ) $alloptions_db as $o )
$alloptions [ $o -> option_name ] = $o -> option_value ;
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wp_cache_add ( 'alloptions' , $alloptions , 'options' );
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}
return $alloptions ;
}
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/**
* Update the value of an option that was already added .
*
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* You do not need to serialize values , if the value needs to be serialize , then
* it will be serialized before it is inserted into the database . Remember ,
* resources can not be serialized or added as an option .
*
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* If the option does not exist , then the option will be added with the option
* value , but you will not be able to set whether it is autoloaded . If you want
* to set whether an option autoloaded , then you need to use the add_option () .
*
* When the option is updated , then the filter named
* 'update_option_$option_name' , with the $option_name as the $option_name
* parameter value , will be called . The hook should accept two parameters , the
* first is the old parameter and the second is the new parameter .
*
* @ since 1.0 . 0
* @ package WordPress
* @ subpackage Option
*
* @ param string $option_name Option name . Expected to not be SQL - escaped
* @ param mixed $newvalue Option value .
* @ return bool False if value was not updated and true if value was updated .
*/
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function update_option ( $option_name , $newvalue ) {
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global $wpdb ;
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wp_protect_special_option ( $option_name );
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$safe_option_name = $wpdb -> escape ( $option_name );
$newvalue = sanitize_option ( $option_name , $newvalue );
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$oldvalue = get_option ( $safe_option_name );
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$newvalue = apply_filters ( 'pre_update_option_' . $option_name , $newvalue , $oldvalue );
// If the new and old values are the same, no need to update.
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if ( $newvalue === $oldvalue )
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return false ;
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if ( false === $oldvalue ) {
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add_option ( $option_name , $newvalue );
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return true ;
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}
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$notoptions = wp_cache_get ( 'notoptions' , 'options' );
if ( is_array ( $notoptions ) && isset ( $notoptions [ $option_name ] ) ) {
unset ( $notoptions [ $option_name ] );
wp_cache_set ( 'notoptions' , $notoptions , 'options' );
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}
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$_newvalue = $newvalue ;
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$newvalue = maybe_serialize ( $newvalue );
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$alloptions = wp_load_alloptions ();
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if ( isset ( $alloptions [ $option_name ] ) ) {
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$alloptions [ $option_name ] = $newvalue ;
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wp_cache_set ( 'alloptions' , $alloptions , 'options' );
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} else {
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wp_cache_set ( $option_name , $newvalue , 'options' );
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}
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$wpdb -> query ( $wpdb -> prepare ( " UPDATE $wpdb->options SET option_value = %s WHERE option_name = %s " , $newvalue , $option_name ) );
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if ( $wpdb -> rows_affected == 1 ) {
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do_action ( " update_option_ { $option_name } " , $oldvalue , $_newvalue );
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return true ;
}
return false ;
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}
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/**
* Add a new option .
*
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* You do not need to serialize values , if the value needs to be serialize , then
* it will be serialized before it is inserted into the database . Remember ,
* resources can not be serialized or added as an option .
*
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* You can create options without values and then add values later . Does not
* check whether the option has already been added , but does check that you
* aren ' t adding a protected WordPress option . Care should be taken to not name
* options , the same as the ones which are protected and to not add options
* that were already added .
*
* The filter named 'add_option_$optionname' , with the $optionname being
* replaced with the option ' s name , will be called . The hook should accept two
* parameters , the first is the option name , and the second is the value .
*
* @ package WordPress
* @ subpackage Option
* @ since 1.0 . 0
* @ link http :// alex . vort - x . net / blog / Thanks Alex Stapleton
*
* @ param string $name Option name to add . Expects to NOT be SQL escaped .
* @ param mixed $value Optional . Option value , can be anything .
* @ param mixed $deprecated Optional . Description . Not used anymore .
* @ param bool $autoload Optional . Default is enabled . Whether to load the option when WordPress starts up .
* @ return null returns when finished .
*/
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function add_option ( $name , $value = '' , $deprecated = '' , $autoload = 'yes' ) {
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global $wpdb ;
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wp_protect_special_option ( $name );
$safe_name = $wpdb -> escape ( $name );
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$value = sanitize_option ( $name , $value );
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// Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query
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$notoptions = wp_cache_get ( 'notoptions' , 'options' );
if ( ! is_array ( $notoptions ) || ! isset ( $notoptions [ $name ] ) )
if ( false !== get_option ( $safe_name ) )
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return ;
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$value = maybe_serialize ( $value );
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$autoload = ( 'no' === $autoload ) ? 'no' : 'yes' ;
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if ( 'yes' == $autoload ) {
$alloptions = wp_load_alloptions ();
$alloptions [ $name ] = $value ;
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wp_cache_set ( 'alloptions' , $alloptions , 'options' );
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} else {
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wp_cache_set ( $name , $value , 'options' );
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}
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// This option exists now
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$notoptions = wp_cache_get ( 'notoptions' , 'options' ); // yes, again... we need it to be fresh
if ( is_array ( $notoptions ) && isset ( $notoptions [ $name ] ) ) {
unset ( $notoptions [ $name ] );
wp_cache_set ( 'notoptions' , $notoptions , 'options' );
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}
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$wpdb -> query ( $wpdb -> prepare ( " INSERT INTO $wpdb->options (option_name, option_value, autoload) VALUES (%s, %s, %s) " , $name , $value , $autoload ) );
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do_action ( " add_option_ { $name } " , $name , $value );
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return ;
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}
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/**
* Removes option by name and prevents removal of protected WordPress options .
*
* @ package WordPress
* @ subpackage Option
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* @ since 1.2 . 0
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*
* @ param string $name Option name to remove .
* @ return bool True , if succeed . False , if failure .
*/
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function delete_option ( $name ) {
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global $wpdb ;
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wp_protect_special_option ( $name );
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// Get the ID, if no ID then return
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// expected_slashed ($name)
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$option = $wpdb -> get_row ( " SELECT option_id, autoload FROM $wpdb->options WHERE option_name = ' $name ' " );
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if ( is_null ( $option ) || ! $option -> option_id )
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return false ;
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// expected_slashed ($name)
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$wpdb -> query ( " DELETE FROM $wpdb->options WHERE option_name = ' $name ' " );
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if ( 'yes' == $option -> autoload ) {
$alloptions = wp_load_alloptions ();
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if ( isset ( $alloptions [ $name ] ) ) {
unset ( $alloptions [ $name ] );
wp_cache_set ( 'alloptions' , $alloptions , 'options' );
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}
} else {
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wp_cache_delete ( $name , 'options' );
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}
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return true ;
}
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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 ) )
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return serialize ( $data );
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if ( is_serialized ( $data ) )
return serialize ( $data );
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2006-10-12 23:54:36 +00:00
return $data ;
}
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/**
* Strip HTML and put links at the bottom of stripped content .
*
* Searches for all of the links , strips them out of the content , and places
* them at the bottom of the content with numbers .
*
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* @ since 0.71
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*
* @ param string $content Content to get links
* @ return string HTML stripped out of content with links at the bottom .
*/
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function make_url_footnote ( $content ) {
preg_match_all ( '/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/' , $content , $matches );
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$j = 0 ;
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for ( $i = 0 ; $i < count ( $matches [ 0 ]); $i ++ ) {
$links_summary = ( ! $j ) ? " \n " : $links_summary ;
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$j ++ ;
$link_match = $matches [ 0 ][ $i ];
$link_number = '[' . ( $i + 1 ) . ']' ;
$link_url = $matches [ 2 ][ $i ];
$link_text = $matches [ 4 ][ $i ];
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$content = str_replace ( $link_match , $link_text . ' ' . $link_number , $content );
$link_url = ( ( strtolower ( substr ( $link_url , 0 , 7 ) ) != 'http://' ) && ( strtolower ( substr ( $link_url , 0 , 8 ) ) != 'https://' ) ) ? get_option ( 'home' ) . $link_url : $link_url ;
$links_summary .= " \n " . $link_number . ' ' . $link_url ;
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}
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$content = strip_tags ( $content );
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$content .= $links_summary ;
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return $content ;
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}
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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 = $matchtitle [ 0 ];
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$post_title = preg_replace ( '/<title>/si' , '' , $post_title );
$post_title = preg_replace ( '/<\/title>/si' , '' , $post_title );
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} else {
$post_title = $post_default_title ;
}
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return $post_title ;
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}
2005-10-10 09:25:38 +00:00
2008-08-09 04:51:51 +00:00
/**
* 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
2008-08-09 04:51:51 +00:00
*
* @ 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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/**
* Open the file handle for debugging .
*
* This function is used for XMLRPC feature , but it is general purpose enough
* to be used in anywhere .
*
* @ see fopen () for mode options .
* @ package WordPress
* @ subpackage Debug
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* @ since 0.71
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* @ uses $debug Used for whether debugging is enabled .
*
* @ param string $filename File path to debug file .
* @ param string $mode Same as fopen () mode parameter .
* @ return bool | resource File handle . False on failure .
*/
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function debug_fopen ( $filename , $mode ) {
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global $debug ;
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if ( 1 == $debug ) {
$fp = fopen ( $filename , $mode );
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return $fp ;
} else {
return false ;
}
}
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/**
* Write contents to the file used for debugging .
*
* Technically , this can be used to write to any file handle when the global
* $debug is set to 1 or true .
*
* @ package WordPress
* @ subpackage Debug
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* @ since 0.71
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* @ uses $debug Used for whether debugging is enabled .
*
* @ param resource $fp File handle for debugging file .
* @ param string $string Content to write to debug file .
*/
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function debug_fwrite ( $fp , $string ) {
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global $debug ;
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if ( 1 == $debug )
fwrite ( $fp , $string );
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}
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/**
* Close the debugging file handle .
*
* Technically , this can be used to close any file handle when the global $debug
* is set to 1 or true .
*
* @ package WordPress
* @ subpackage Debug
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* @ since 0.71
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* @ uses $debug Used for whether debugging is enabled .
*
* @ param resource $fp Debug File handle .
*/
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function debug_fclose ( $fp ) {
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global $debug ;
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if ( 1 == $debug )
fclose ( $fp );
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}
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/**
* { @ internal Missing Short Description }}
*
* { @ internal Missing Long Description }}
*
* @ package WordPress
* @ since 1.5 . 0
*
* @ uses $wpdb
*
* @ param string $content
* @ param int $post_ID Post ID
*/
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function do_enclose ( $content , $post_ID ) {
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global $wpdb ;
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include_once ( ABSPATH . WPINC . '/class-IXR.php' );
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$log = debug_fopen ( ABSPATH . 'enclosures.log' , 'a' );
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$post_links = array ();
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debug_fwrite ( $log , 'BEGIN ' . date ( 'YmdHis' , time () ) . " \n " );
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$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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debug_fwrite ( $log , 'Post contents:' );
debug_fwrite ( $log , $content . " \n " );
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2008-08-06 20:31:54 +00:00
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
$test = parse_url ( $link_test );
if ( isset ( $test [ 'query' ] ) )
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$post_links [] = $link_test ;
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elseif ( $test [ 'path' ] != '/' && $test [ 'path' ] != '' )
2004-10-18 12:09:20 +00:00
$post_links [] = $link_test ;
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}
}
2004-10-18 12:09:20 +00:00
2008-08-06 20:31:54 +00:00
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 , $url . '%' ) ) ) {
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if ( $headers = wp_get_http_headers ( $url ) ) {
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$len = ( int ) $headers [ 'content-length' ];
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$type = $wpdb -> escape ( $headers [ 'content-type' ] );
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$allowed_types = array ( 'video' , 'audio' );
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if ( in_array ( substr ( $type , 0 , strpos ( $type , " / " ) ), $allowed_types ) ) {
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$meta_value = " $url\n $len\n $type\n " ;
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$wpdb -> query ( $wpdb -> prepare ( " INSERT INTO ` $wpdb->postmeta ` ( `post_id` , `meta_key` , `meta_value` )
VALUES ( % d , 'enclosure' , % s ) " , $post_ID , $meta_value ) );
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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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*
* @ param string $url
* @ param string | bool $file_path Optional . File path to write request to .
* @ param int $red Optional . Number of Redirects . Stops at 5 redirects .
* @ 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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global $wp_version ;
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@ set_time_limit ( 60 );
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if ( $red > 5 )
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return false ;
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$parts = parse_url ( $url );
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$file = $parts [ 'path' ] . ( ( $parts [ 'query' ] ) ? '?' . $parts [ 'query' ] : '' );
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$host = $parts [ 'host' ];
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if ( ! isset ( $parts [ 'port' ] ) )
$parts [ 'port' ] = 80 ;
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if ( $file_path )
$request_type = 'GET' ;
else
$request_type = 'HEAD' ;
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$head = " $request_type $file HTTP/1.1 \r \n HOST: $host\r\nUser -Agent: WordPress/ " . $wp_version . " \r \n \r \n " ;
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$fp = @ fsockopen ( $host , $parts [ 'port' ], $err_num , $err_msg , 3 );
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if ( ! $fp )
return false ;
$response = '' ;
fputs ( $fp , $head );
while ( ! feof ( $fp ) && strpos ( $response , " \r \n \r \n " ) == false )
$response .= fgets ( $fp , 2048 );
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preg_match_all ( '/(.*?): (.*)\r/' , $response , $matches );
$count = count ( $matches [ 1 ] );
for ( $i = 0 ; $i < $count ; $i ++ ) {
$key = strtolower ( $matches [ 1 ][ $i ] );
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$headers [ " $key " ] = $matches [ 2 ][ $i ];
}
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preg_match ( '/.*([0-9]{3}).*/' , $response , $return );
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$headers [ 'response' ] = $return [ 1 ]; // HTTP response code eg 204, 200, 404
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$code = $headers [ 'response' ];
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if ( ( '302' == $code || '301' == $code ) && isset ( $headers [ 'location' ] ) ) {
fclose ( $fp );
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return wp_get_http ( $headers [ 'location' ], $file_path , ++ $red );
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}
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// make a note of the final location, so the caller can tell if we were redirected or not
$headers [ 'x-final-location' ] = $url ;
// HEAD request only
if ( ! $file_path ) {
fclose ( $fp );
return $headers ;
}
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// GET request - fetch and write it to the supplied filename
$content_length = $headers [ 'content-length' ];
$got_bytes = 0 ;
$out_fp = fopen ( $file_path , 'w' );
while ( ! feof ( $fp ) ) {
$buf = fread ( $fp , 4096 );
fwrite ( $out_fp , $buf );
$got_bytes += strlen ( $buf );
// don't read past the content-length
if ( $content_length and $got_bytes >= $content_length )
break ;
}
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fclose ( $out_fp );
fclose ( $fp );
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return $headers ;
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}
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/**
* Retrieve HTTP Headers from URL .
*
* @ since 1.5 . 1
*
* @ param string $url
* @ param int $red Optional . Number of redirects .
* @ return bool | string False on failure , headers on success .
*/
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function wp_get_http_headers ( $url , $red = 1 ) {
return wp_get_http ( $url , false , $red );
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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 () {
global $day , $previousday ;
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if ( $day != $previousday )
return 1 ;
else
return 0 ;
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}
2008-06-30 03:23:44 +00:00
/**
* 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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/**
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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
* emptystring removes the key . Omitting oldquery_or_uri uses the $_SERVER
* value .
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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
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* @ return string New URL query string .
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*/
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function add_query_arg () {
$ret = '' ;
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if ( is_array ( func_get_arg ( 0 ) ) ) {
if ( @ func_num_args () < 2 || false === @ func_get_arg ( 1 ) )
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$uri = $_SERVER [ 'REQUEST_URI' ];
else
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$uri = @ func_get_arg ( 1 );
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} else {
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if ( @ func_num_args () < 3 || false === @ func_get_arg ( 2 ) )
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$uri = $_SERVER [ 'REQUEST_URI' ];
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else
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$uri = @ func_get_arg ( 2 );
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}
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if ( $frag = strstr ( $uri , '#' ) )
$uri = substr ( $uri , 0 , - strlen ( $frag ) );
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else
$frag = '' ;
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if ( preg_match ( '|^https?://|i' , $uri , $matches ) ) {
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$protocol = $matches [ 0 ];
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$uri = substr ( $uri , strlen ( $protocol ) );
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} else {
$protocol = '' ;
}
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if ( strpos ( $uri , '?' ) !== false ) {
$parts = explode ( '?' , $uri , 2 );
if ( 1 == count ( $parts ) ) {
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$base = '?' ;
$query = $parts [ 0 ];
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} else {
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$base = $parts [ 0 ] . '?' ;
$query = $parts [ 1 ];
}
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} elseif ( ! empty ( $protocol ) || strpos ( $uri , '=' ) === false ) {
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$base = $uri . '?' ;
$query = '' ;
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} else {
$base = '' ;
$query = $uri ;
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}
2005-04-01 05:42:46 +00:00
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wp_parse_str ( $query , $qs );
$qs = urlencode_deep ( $qs ); // this re-URL-encodes things that were already in the query string
if ( is_array ( func_get_arg ( 0 ) ) ) {
$kayvees = func_get_arg ( 0 );
$qs = array_merge ( $qs , $kayvees );
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} else {
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$qs [ func_get_arg ( 0 )] = func_get_arg ( 1 );
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}
2005-10-10 09:25:38 +00:00
2008-08-06 20:31:54 +00:00
foreach ( ( array ) $qs as $k => $v ) {
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if ( $v === false )
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unset ( $qs [ $k ] );
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}
2007-09-01 03:41:50 +00:00
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$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 04:21:21 +00:00
return $ret ;
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}
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/**
* 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 .
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* @ return string New URL query string .
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*/
function remove_query_arg ( $key , $query = false ) {
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if ( is_array ( $key ) ) { // removing multiple keys
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foreach ( $key as $k )
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$query = add_query_arg ( $k , false , $query );
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return $query ;
}
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return add_query_arg ( $key , false , $query );
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}
2004-12-04 00:12:08 +00:00
2008-06-15 09:38:32 +00:00
/**
* Walks the array while sanitizing the contents .
*
* @ uses $wpdb Used to sanitize values
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* @ since 0.71
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*
* @ param array $array Array to used to walk while sanitizing contents .
* @ return array Sanitized $array .
*/
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function add_magic_quotes ( $array ) {
2005-07-05 20:47:22 +00:00
global $wpdb ;
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foreach ( ( array ) $array as $k => $v ) {
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if ( is_array ( $v ) ) {
$array [ $k ] = add_magic_quotes ( $v );
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} else {
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$array [ $k ] = $wpdb -> escape ( $v );
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}
}
return $array ;
}
2008-06-30 03:23:44 +00:00
/**
* HTTP request for URI to retrieve content .
*
* Tries to retrieve the HTTP content with fopen first and then using cURL , if
* fopen can ' t be used .
*
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* @ since 1.5 . 1
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*
* @ param string $uri URI / URL of web page to retrieve .
* @ return string HTTP content .
*/
2005-05-03 07:52:11 +00:00
function wp_remote_fopen ( $uri ) {
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$timeout = 10 ;
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$parsed_url = @ parse_url ( $uri );
2007-01-16 18:41:05 +00:00
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if ( ! $parsed_url || ! is_array ( $parsed_url ) )
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return false ;
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if ( ! isset ( $parsed_url [ 'scheme' ] ) || ! in_array ( $parsed_url [ 'scheme' ], array ( 'http' , 'https' ) ) )
2007-01-16 18:41:05 +00:00
$uri = 'http://' . $uri ;
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if ( ini_get ( 'allow_url_fopen' ) ) {
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$fp = @ fopen ( $uri , 'r' );
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if ( ! $fp )
return false ;
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//stream_set_timeout($fp, $timeout); // Requires php 4.3
2005-05-13 21:53:18 +00:00
$linea = '' ;
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while ( $remote_read = fread ( $fp , 4096 ) )
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$linea .= $remote_read ;
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fclose ( $fp );
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return $linea ;
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} elseif ( function_exists ( 'curl_init' ) ) {
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$handle = curl_init ();
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curl_setopt ( $handle , CURLOPT_URL , $uri );
curl_setopt ( $handle , CURLOPT_CONNECTTIMEOUT , 1 );
curl_setopt ( $handle , CURLOPT_RETURNTRANSFER , 1 );
curl_setopt ( $handle , CURLOPT_TIMEOUT , $timeout );
$buffer = curl_exec ( $handle );
curl_close ( $handle );
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return $buffer ;
} else {
2005-05-13 21:53:18 +00:00
return false ;
2005-10-10 09:25:38 +00:00
}
2005-05-03 07:52:11 +00:00
}
2008-08-09 04:51:51 +00:00
/**
* Setup the WordPress query .
*
* @ since 2.0 . 0
*
* @ param string $query_vars Default WP_Query arguments .
*/
2007-10-11 05:46:57 +00:00
function wp ( $query_vars = '' ) {
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global $wp , $wp_query , $wp_the_query ;
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$wp -> main ( $query_vars );
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if ( ! isset ( $wp_the_query ) )
$wp_the_query = $wp_query ;
2005-06-10 23:15:13 +00:00
}
2008-06-15 09:38:32 +00:00
/**
* 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 .
*/
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function get_status_header_desc ( $code ) {
global $wp_header_to_desc ;
2007-06-14 02:25:30 +00:00
2007-10-11 05:46:57 +00:00
$code = absint ( $code );
2007-06-14 02:25:30 +00:00
2007-10-11 05:46:57 +00:00
if ( ! isset ( $wp_header_to_desc ) ) {
2007-09-13 04:48:41 +00:00
$wp_header_to_desc = array (
100 => 'Continue' ,
101 => 'Switching Protocols' ,
200 => 'OK' ,
201 => 'Created' ,
202 => 'Accepted' ,
203 => 'Non-Authoritative Information' ,
204 => 'No Content' ,
205 => 'Reset Content' ,
206 => 'Partial Content' ,
300 => 'Multiple Choices' ,
301 => 'Moved Permanently' ,
302 => 'Found' ,
303 => 'See Other' ,
304 => 'Not Modified' ,
305 => 'Use Proxy' ,
307 => 'Temporary Redirect' ,
400 => 'Bad Request' ,
401 => 'Unauthorized' ,
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' ,
500 => 'Internal Server Error' ,
501 => 'Not Implemented' ,
502 => 'Bad Gateway' ,
503 => 'Service Unavailable' ,
504 => 'Gateway Timeout' ,
505 => 'HTTP Version Not Supported'
);
}
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if ( isset ( $wp_header_to_desc [ $code ] ) )
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return $wp_header_to_desc [ $code ];
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else
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return '' ;
}
2008-06-30 03:23:44 +00:00
/**
* Set HTTP status header .
*
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* @ since 2.0 . 0
2008-06-30 03:23:44 +00:00
* @ 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
* @ return null Does not return anything .
*/
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function status_header ( $header ) {
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$text = get_status_header_desc ( $header );
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2007-05-12 21:55:14 +00:00
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 21:55:14 +00:00
2007-10-11 05:46:57 +00:00
if ( version_compare ( phpversion (), '4.3.0' , '>=' ) )
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return @ header ( $status_header , true , $header );
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else
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return @ header ( $status_header );
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}
2008-06-15 09:38:32 +00:00
/**
* 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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function nocache_headers () {
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// why are these @-silenced when other header calls aren't?
@ header ( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' );
@ header ( 'Last-Modified: ' . gmdate ( 'D, d M Y H:i:s' ) . ' GMT' );
@ header ( 'Cache-Control: no-cache, must-revalidate, max-age=0' );
@ header ( 'Pragma: no-cache' );
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}
2008-06-15 09:38:32 +00:00
/**
* Set the headers for caching for 10 days with JavaScript content type .
*
* @ since 2.1 . 0
*/
2006-08-22 17:31:53 +00:00
function cache_javascript_headers () {
$expiresOffset = 864000 ; // 10 days
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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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}
2008-06-15 09:38:32 +00:00
/**
* Retrieve the number of database queries during the WordPress execution .
*
* @ since 2.0 . 0
*
* @ return int Number of database queries
*/
2005-11-16 23:48:12 +00:00
function get_num_queries () {
global $wpdb ;
return $wpdb -> num_queries ;
}
2008-06-15 09:38:32 +00:00
/**
* 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
*/
2007-05-28 17:11:42 +00:00
function bool_from_yn ( $yn ) {
return ( strtolower ( $yn ) == 'y' );
2006-02-27 04:57:30 +00:00
}
2006-03-12 22:57:00 +00:00
2008-08-09 04:51:51 +00:00
/**
* 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 ) ) {
$message = sprintf ( __ ( 'ERROR: %s is not a valid feed template' ), wp_specialchars ( $feed ));
wp_die ( $message );
}
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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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/**
* Load the RSS 1.0 Feed Template
*
* @ 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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/**
* Display the robot . txt file content .
*
* The echo content should be with usage of the permalinks or for creating the
* robot . txt file .
*
* @ since 2.1 . 0
* @ uses do_action () Calls 'do_robotstxt' hook for displaying robot . txt rules .
*/
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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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if ( '0' == get_option ( 'blog_public' ) ) {
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echo " User-agent: * \n " ;
echo " Disallow: / \n " ;
} else {
echo " User-agent: * \n " ;
echo " Disallow: \n " ;
}
}
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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 $wpdb ;
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// Check cache first. If options table goes away and we have true cached, oh well.
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if ( wp_cache_get ( 'is_blog_installed' ) )
return true ;
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$suppress = $wpdb -> suppress_errors ();
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$installed = $wpdb -> get_var ( " SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl' " );
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$wpdb -> suppress_errors ( $suppress );
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$installed = ! empty ( $installed ) ? true : false ;
wp_cache_set ( 'is_blog_installed' , $installed );
return $installed ;
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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 );
return wp_specialchars ( 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 .
*
* If you set $echo to true and set $referer to true , then you will need to
* retrieve the { @ link wp_referer_field () wp referer field } . If you have the
* $referer set to true and are echoing the nonce field , it will also echo the
* referer field .
*
* The $action and $name are optional , but if you want to have better security ,
* it is strongly suggested to set those two parameters . It is easier to just
* call the function without any parameters , because validation of the nonce
* doesn ' t require any parameters , but since crackers know what the default is
* it won ' t be difficult for them to find a way around your nonce and cause
* damage .
*
* The input name will be whatever $name value you gave . The input value will be
* the nonce creation value .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ param string $action Optional . Action name .
* @ param string $name Optional . Nonce name .
* @ param bool $referer Optional , default true . Whether to set the referer field for validation .
* @ param bool $echo Optional , default true . Whether to display or return hidden form field .
* @ return string Nonce field .
*/
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function wp_nonce_field ( $action = - 1 , $name = " _wpnonce " , $referer = true , $echo = true ) {
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$name = attribute_escape ( $name );
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$nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce ( $action ) . '" />' ;
if ( $echo )
echo $nonce_field ;
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if ( $referer )
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wp_referer_field ( $echo , 'previous' );
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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 = attribute_escape ( $_SERVER [ 'REQUEST_URI' ] );
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$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 ;
$orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . attribute_escape ( stripslashes ( $ref ) ) . '" />' ;
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if ( $echo )
echo $orig_referer_field ;
return $orig_referer_field ;
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}
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/**
* Retrieve referer from '_wp_http_referer' , HTTP referer , or current page respectively .
*
* @ package WordPress
* @ subpackage Security
* @ since 2.0 . 4
*
* @ return string | bool False on failure . Referer URL on success .
*/
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function wp_get_referer () {
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$ref = '' ;
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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' ];
if ( $ref !== $_SERVER [ 'REQUEST_URI' ] )
return $ref ;
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return false ;
}
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/**
* 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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}
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/**
* Recursive directory creation based on full path .
*
* Will attempt to set permissions on folders .
*
* @ since 2.0 . 1
*
* @ param string $target Full path to attempt to create .
* @ return bool Whether the path was created or not . True if path already exists .
*/
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function wp_mkdir_p ( $target ) {
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// from php.net/mkdir user contributed notes
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$target = str_replace ( '//' , '/' , $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.
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if ( wp_mkdir_p ( dirname ( $target ) ) )
return wp_mkdir_p ( $target );
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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 .
*/
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function path_is_absolute ( $path ) {
// this is definitive if true but fails if $path does not exist or contains a symbolic link
if ( realpath ( $path ) == $path )
return true ;
if ( strlen ( $path ) == 0 || $path { 0 } == '.' )
return false ;
2008-03-02 20:17:30 +00:00
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// windows allows absolute paths like this
if ( preg_match ( '#^[a-zA-Z]:\\\\#' , $path ) )
return true ;
// a path starting with / or \ is absolute; anything else is relative
return ( bool ) preg_match ( '#^[/\\\\]#' , $path );
}
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/**
* 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
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*
* @ 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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2008-08-09 04:51:51 +00:00
/**
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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 .
2008-08-09 04:51:51 +00:00
*/
function wp_upload_dir ( $time = null ) {
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$siteurl = get_option ( 'siteurl' );
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$upload_path = get_option ( 'upload_path' );
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$upload_path = trim ( $upload_path );
if ( empty ( $upload_path ) )
$dir = WP_CONTENT_DIR . '/uploads' ;
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else
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$dir = $upload_path ;
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// $dir is absolute, $path is (maybe) relative to ABSPATH
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$dir = path_join ( ABSPATH , $dir );
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if ( ! $url = get_option ( 'upload_url_path' ) ) {
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if ( empty ( $upload_path ) or ( $upload_path == $dir ) )
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$url = WP_CONTENT_URL . '/uploads' ;
else
$url = trailingslashit ( $siteurl ) . $upload_path ;
}
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if ( defined ( 'UPLOADS' ) ) {
$dir = ABSPATH . UPLOADS ;
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$url = trailingslashit ( $siteurl ) . UPLOADS ;
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}
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$bdir = $dir ;
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$burl = $url ;
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$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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// Make sure we have an uploads dir
if ( ! wp_mkdir_p ( $dir ) ) {
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$message = sprintf ( __ ( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $dir );
return array ( 'error' => $message );
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}
2008-08-09 05:36:14 +00:00
2008-07-07 23:53:54 +00:00
$uploads = array ( 'path' => $dir , 'url' => $url , 'subdir' => $subdir , 'basedir' => $bdir , 'baseurl' => $burl , 'error' => false );
2008-07-18 03:19:12 +00:00
2007-10-11 05:46:57 +00:00
return apply_filters ( 'upload_dir' , $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 .
*
* The callback must accept two parameters , the first one is the directory and
* the second is the filename . The callback must be a function .
2008-08-09 04:51:51 +00:00
*
* @ since 2.5
*
* @ param string $dir
* @ param string $filename
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* @ param string $unique_filename_callback Function name , must be a function .
* @ return string New filename , if given wasn ' t unique .
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*/
function wp_unique_filename ( $dir , $filename , $unique_filename_callback = null ) {
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$filename = strtolower ( $filename );
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// separate the filename into a name and extension
$info = pathinfo ( $filename );
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$ext = $info [ 'extension' ];
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$name = basename ( $filename , " . { $ext } " );
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2008-03-21 04:03:33 +00:00
// edge case: if file is named '.ext', treat as an empty name
if ( $name === " . $ext " )
$name = '' ;
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// Increment the file number until we have a unique file to save in $dir. Use $override['unique_filename_callback'] if supplied.
if ( $unique_filename_callback && function_exists ( $unique_filename_callback ) ) {
$filename = $unique_filename_callback ( $dir , $name );
} else {
$number = '' ;
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if ( empty ( $ext ) )
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$ext = '' ;
else
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$ext = strtolower ( " . $ext " );
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$filename = str_replace ( $ext , '' , $filename );
2008-04-08 17:22:20 +00:00
// Strip % so the server doesn't try to decode entities.
$filename = str_replace ( '%' , '' , sanitize_title_with_dashes ( $filename ) ) . $ext ;
2008-03-21 04:03:33 +00:00
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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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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
* @ param null $deprecated Not used . Set to null .
* @ 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 ( $name ) )
return array ( 'error' => __ ( " Empty filename " ) );
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$wp_filetype = wp_check_filetype ( $name );
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if ( ! $wp_filetype [ 'ext' ] )
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return array ( 'error' => __ ( " Invalid file type " ) );
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$upload = wp_upload_dir ( $time );
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if ( $upload [ 'error' ] !== false )
return $upload ;
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$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 ) ) ) {
$message = sprintf ( __ ( 'Unable to create directory %s. Is its parent directory writable by the server?' ), dirname ( $new_file ) );
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 ) );
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@ fwrite ( $ifp , $bits );
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fclose ( $ifp );
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// Set correct file permissions
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$stat = @ stat ( dirname ( $new_file ) );
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$perms = $stat [ 'mode' ] & 0007777 ;
$perms = $perms & 0000666 ;
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@ chmod ( $new_file , $perms );
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// Compute the URL
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$url = $upload [ 'url' ] . " / $filename " ;
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return array ( 'file' => $new_file , 'url' => $url , 'error' => false );
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}
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/**
* Retrieve the file type based on the extension name .
*
* @ package WordPress
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* @ since 2.5 . 0
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* @ 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 .
*/
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function wp_ext2type ( $ext ) {
$ext2type = apply_filters ( 'ext2type' , array (
'audio' => array ( 'aac' , 'ac3' , 'aif' , 'aiff' , 'mp1' , 'mp2' , 'mp3' , 'm3a' , 'm4a' , 'm4b' , 'ogg' , 'ram' , 'wav' , 'wma' ),
'video' => array ( 'asf' , 'avi' , 'divx' , 'dv' , 'mov' , 'mpg' , 'mpeg' , 'mp4' , 'mpv' , 'ogm' , 'qt' , 'rm' , 'vob' , 'wmv' ),
'document' => array ( 'doc' , 'pages' , 'odt' , 'rtf' , 'pdf' ),
'spreadsheet' => array ( 'xls' , 'numbers' , 'ods' ),
'interactive' => array ( 'ppt' , 'key' , 'odp' , 'swf' ),
'text' => array ( 'txt' ),
'archive' => array ( 'tar' , 'bz2' , 'gz' , 'cab' , 'dmg' , 'rar' , 'sea' , 'sit' , 'sqx' , 'zip' ),
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'code' => array ( 'css' , 'html' , 'php' , 'js' ),
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));
foreach ( $ext2type as $type => $exts )
if ( in_array ( $ext , $exts ) )
return $type ;
}
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/**
* 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 .
*/
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function wp_check_filetype ( $filename , $mimes = null ) {
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// Accepted MIME types are set here as PCRE unless provided.
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$mimes = ( is_array ( $mimes ) ) ? $mimes : apply_filters ( 'upload_mimes' , array (
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'jpg|jpeg|jpe' => 'image/jpeg' ,
'gif' => 'image/gif' ,
'png' => 'image/png' ,
'bmp' => 'image/bmp' ,
'tif|tiff' => 'image/tiff' ,
'ico' => 'image/x-icon' ,
'asf|asx|wax|wmv|wmx' => 'video/asf' ,
'avi' => 'video/avi' ,
'mov|qt' => 'video/quicktime' ,
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'mpeg|mpg|mpe|mp4' => 'video/mpeg' ,
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'txt|c|cc|h' => 'text/plain' ,
'rtx' => 'text/richtext' ,
'css' => 'text/css' ,
'htm|html' => 'text/html' ,
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'mp3|m4a' => 'audio/mpeg' ,
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'ra|ram' => 'audio/x-realaudio' ,
'wav' => 'audio/wav' ,
'ogg' => 'audio/ogg' ,
'mid|midi' => 'audio/midi' ,
'wma' => 'audio/wma' ,
'rtf' => 'application/rtf' ,
'js' => 'application/javascript' ,
'pdf' => 'application/pdf' ,
'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' ,
'swf' => 'application/x-shockwave-flash' ,
'class' => 'application/java' ,
'tar' => 'application/x-tar' ,
'zip' => 'application/zip' ,
'gz|gzip' => 'application/x-gzip' ,
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'exe' => 'application/x-msdownload' ,
// openoffice formats
'odt' => 'application/vnd.oasis.opendocument.text' ,
'odp' => 'application/vnd.oasis.opendocument.presentation' ,
'ods' => 'application/vnd.oasis.opendocument.spreadsheet' ,
'odg' => 'application/vnd.oasis.opendocument.graphics' ,
'odc' => 'application/vnd.oasis.opendocument.chart' ,
'odb' => 'application/vnd.oasis.opendocument.database' ,
'odf' => 'application/vnd.oasis.opendocument.formula' ,
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)
);
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$type = false ;
$ext = false ;
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foreach ( $mimes as $ext_preg => $mime_match ) {
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$ext_preg = '!\.(' . $ext_preg . ')$!i' ;
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if ( preg_match ( $ext_preg , $filename , $ext_matches ) ) {
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$type = $mime_match ;
$ext = $ext_matches [ 1 ];
break ;
}
}
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return compact ( 'ext' , 'type' );
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}
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/**
* Retrieve nonce action " Are you sure " message .
*
* The action is split by verb and noun . The action format is as follows :
* verb - action_extra . The verb is before the first dash and has the format of
* letters and no spaces and numbers . The noun is after the dash and before the
* underscore , if an underscore exists . The noun is also only letters .
*
* The filter will be called for any action , which is not defined by WordPress .
* You may use the filter for your plugin to explain nonce actions to the user ,
* when they get the " Are you sure? " message . The filter is in the format of
* 'explain_nonce_$verb-$noun' with the $verb replaced by the found verb and the
* $noun replaced by the found noun . The two parameters that are given to the
* hook are the localized " Are you sure you want to do this? " message with the
* extra text ( the text after the underscore ) .
*
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* @ package WordPress
* @ subpackage Security
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* @ since 2.0 . 4
*
* @ param string $action Nonce action .
* @ return string Are you sure message .
*/
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function wp_explain_nonce ( $action ) {
if ( $action !== - 1 && preg_match ( '/([a-z]+)-([a-z]+)(_(.+))?/' , $action , $matches ) ) {
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$verb = $matches [ 1 ];
$noun = $matches [ 2 ];
$trans = array ();
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$trans [ 'update' ][ 'attachment' ] = array ( __ ( 'Your attempt to edit this attachment: "%s" has failed.' ), 'get_the_title' );
$trans [ 'add' ][ 'category' ] = array ( __ ( 'Your attempt to add this category has failed.' ), false );
$trans [ 'delete' ][ 'category' ] = array ( __ ( 'Your attempt to delete this category: "%s" has failed.' ), 'get_catname' );
$trans [ 'update' ][ 'category' ] = array ( __ ( 'Your attempt to edit this category: "%s" has failed.' ), 'get_catname' );
$trans [ 'delete' ][ 'comment' ] = array ( __ ( 'Your attempt to delete this comment: "%s" has failed.' ), 'use_id' );
$trans [ 'unapprove' ][ 'comment' ] = array ( __ ( 'Your attempt to unapprove this comment: "%s" has failed.' ), 'use_id' );
$trans [ 'approve' ][ 'comment' ] = array ( __ ( 'Your attempt to approve this comment: "%s" has failed.' ), 'use_id' );
$trans [ 'update' ][ 'comment' ] = array ( __ ( 'Your attempt to edit this comment: "%s" has failed.' ), 'use_id' );
$trans [ 'bulk' ][ 'comments' ] = array ( __ ( 'Your attempt to bulk modify comments has failed.' ), false );
$trans [ 'moderate' ][ 'comments' ] = array ( __ ( 'Your attempt to moderate comments has failed.' ), false );
$trans [ 'add' ][ 'bookmark' ] = array ( __ ( 'Your attempt to add this link has failed.' ), false );
$trans [ 'delete' ][ 'bookmark' ] = array ( __ ( 'Your attempt to delete this link: "%s" has failed.' ), 'use_id' );
$trans [ 'update' ][ 'bookmark' ] = array ( __ ( 'Your attempt to edit this link: "%s" has failed.' ), 'use_id' );
$trans [ 'bulk' ][ 'bookmarks' ] = array ( __ ( 'Your attempt to bulk modify links has failed.' ), false );
$trans [ 'add' ][ 'page' ] = array ( __ ( 'Your attempt to add this page has failed.' ), false );
$trans [ 'delete' ][ 'page' ] = array ( __ ( 'Your attempt to delete this page: "%s" has failed.' ), 'get_the_title' );
$trans [ 'update' ][ 'page' ] = array ( __ ( 'Your attempt to edit this page: "%s" has failed.' ), 'get_the_title' );
$trans [ 'edit' ][ 'plugin' ] = array ( __ ( 'Your attempt to edit this plugin file: "%s" has failed.' ), 'use_id' );
$trans [ 'activate' ][ 'plugin' ] = array ( __ ( 'Your attempt to activate this plugin: "%s" has failed.' ), 'use_id' );
$trans [ 'deactivate' ][ 'plugin' ] = array ( __ ( 'Your attempt to deactivate this plugin: "%s" has failed.' ), 'use_id' );
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$trans [ 'upgrade' ][ 'plugin' ] = array ( __ ( 'Your attempt to upgrade this plugin: "%s" has failed.' ), 'use_id' );
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$trans [ 'add' ][ 'post' ] = array ( __ ( 'Your attempt to add this post has failed.' ), false );
$trans [ 'delete' ][ 'post' ] = array ( __ ( 'Your attempt to delete this post: "%s" has failed.' ), 'get_the_title' );
$trans [ 'update' ][ 'post' ] = array ( __ ( 'Your attempt to edit this post: "%s" has failed.' ), 'get_the_title' );
$trans [ 'add' ][ 'user' ] = array ( __ ( 'Your attempt to add this user has failed.' ), false );
$trans [ 'delete' ][ 'users' ] = array ( __ ( 'Your attempt to delete users has failed.' ), false );
$trans [ 'bulk' ][ 'users' ] = array ( __ ( 'Your attempt to bulk modify users has failed.' ), false );
$trans [ 'update' ][ 'user' ] = array ( __ ( 'Your attempt to edit this user: "%s" has failed.' ), 'get_author_name' );
$trans [ 'update' ][ 'profile' ] = array ( __ ( 'Your attempt to modify the profile for: "%s" has failed.' ), 'get_author_name' );
$trans [ 'update' ][ 'options' ] = array ( __ ( 'Your attempt to edit your settings has failed.' ), false );
$trans [ 'update' ][ 'permalink' ] = array ( __ ( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' );
$trans [ 'edit' ][ 'file' ] = array ( __ ( 'Your attempt to edit this file: "%s" has failed.' ), 'use_id' );
$trans [ 'edit' ][ 'theme' ] = array ( __ ( 'Your attempt to edit this theme file: "%s" has failed.' ), 'use_id' );
$trans [ 'switch' ][ 'theme' ] = array ( __ ( 'Your attempt to switch to this theme: "%s" has failed.' ), 'use_id' );
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if ( isset ( $trans [ $verb ][ $noun ] ) ) {
if ( ! empty ( $trans [ $verb ][ $noun ][ 1 ] ) ) {
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$lookup = $trans [ $verb ][ $noun ][ 1 ];
$object = $matches [ 4 ];
if ( 'use_id' != $lookup )
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$object = call_user_func ( $lookup , $object );
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return sprintf ( $trans [ $verb ][ $noun ][ 0 ], wp_specialchars ( $object ) );
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} else {
return $trans [ $verb ][ $noun ][ 0 ];
}
}
}
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return apply_filters ( 'explain_nonce_' . $verb . '-' . $noun , __ ( 'Are you sure you want to do this?' ), $matches [ 4 ] );
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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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$html = wp_specialchars ( wp_explain_nonce ( $action ) ) . '</p>' ;
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if ( wp_get_referer () )
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$html .= " <p><a href=' " . remove_query_arg ( 'updated' , clean_url ( wp_get_referer () ) ) . " '> " . __ ( 'Please try again.' ) . " </a> " ;
wp_die ( $html , $title );
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}
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/**
* Kill WordPress execution and display HTML message with error message .
*
* Call this function complements the die () PHP function . The difference is that
* HTML will be displayed to the user . It is recommended to use this function
* only , when the execution should not continue any further . It is not
* recommended to call this function very often and try to handle as many errors
* as possible siliently .
*
* @ since 2.0 . 4
*
* @ param string $message Error message .
* @ param string $title Error title .
*/
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function wp_die ( $message , $title = '' ) {
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global $wp_locale ;
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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 ( defined ( 'WP_SITEURL' ) && '' != WP_SITEURL )
$admin_dir = WP_SITEURL . '/wp-admin/' ;
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elseif ( function_exists ( 'get_bloginfo' ) && '' != get_bloginfo ( 'wpurl' ) )
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$admin_dir = get_bloginfo ( 'wpurl' ) . '/wp-admin/' ;
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elseif ( strpos ( $_SERVER [ 'PHP_SELF' ], 'wp-admin' ) !== false )
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$admin_dir = '' ;
else
$admin_dir = 'wp-admin/' ;
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if ( ! function_exists ( 'did_action' ) || ! did_action ( 'admin_head' ) ) :
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if ( ! headers_sent () ){
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status_header ( 500 );
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nocache_headers ();
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header ( 'Content-Type: text/html; charset=utf-8' );
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}
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if ( empty ( $title ) ) {
if ( function_exists ( '__' ) )
$title = __ ( 'WordPress › Error' );
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else
$title = 'WordPress › Error' ;
}
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?>
<! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
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< html xmlns = " http://www.w3.org/1999/xhtml " < ? php if ( function_exists ( 'language_attributes' ) ) language_attributes (); ?> >
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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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< link rel = " stylesheet " href = " <?php echo $admin_dir ; ?>css/install.css " type = " text/css " />
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< ? php
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if ( ( $wp_locale ) && ( 'rtl' == $wp_locale -> text_direction ) ) : ?>
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< link rel = " stylesheet " href = " <?php echo $admin_dir ; ?>css/install-rtl.css " type = " text/css " />
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< ? php endif ; ?>
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</ head >
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< body id = " error-page " >
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< ? php endif ; ?>
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< ? php echo $message ; ?>
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</ body >
</ html >
< ? php
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die ();
}
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/**
* Retrieve the WordPress home page URL .
*
* If the constant named 'WP_HOME' exists , then it willl be used and returned by
* the function . This can be used to counter the redirection on your local
* development environment .
*
* @ access private
* @ package WordPress
* @ since 2.2 . 0
*
* @ param string $url URL for the home location
* @ return string Homepage location .
*/
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function _config_wp_home ( $url = '' ) {
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if ( defined ( 'WP_HOME' ) )
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return 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 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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global $wp_locale ;
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if ( 'rtl' == $wp_locale -> text_direction ) {
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$input [ 'directionality' ] = 'rtl' ;
$input [ 'plugins' ] .= ',directionality' ;
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$input [ 'theme_advanced_buttons1' ] .= ',ltr' ;
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}
return $input ;
}
2007-03-12 21:31:24 +00:00
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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 .
*
* The $wp_smiliessearch global is for the regular expression array and is
* set each time the function is called . The $wp_smiliesreplace is the full
* replacement . Supposely , the $wp_smiliessearch array is looped over using
* preg_replace () or just setting the array of $wp_smiliessearch along with the
* array of $wp_smiliesreplace in the search and replace parameters of
* preg_replace (), which would be faster and less overhead . Either way , both are
* used with preg_replace () and can be defined after the function is called .
*
* The full list of smilies can be found in the function and won ' t be listed in
* the description . Probably should create a Codex page for it , so that it is
* available .
*
* @ global array $wpsmiliestrans
* @ global array $wp_smiliesreplace
* @ global array $wp_smiliessearch
* @ since 2.2 . 0
*/
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function smilies_init () {
global $wpsmiliestrans , $wp_smiliessearch , $wp_smiliesreplace ;
// 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 (
':mrgreen:' => 'icon_mrgreen.gif' ,
':neutral:' => 'icon_neutral.gif' ,
':twisted:' => 'icon_twisted.gif' ,
':arrow:' => 'icon_arrow.gif' ,
':shock:' => 'icon_eek.gif' ,
':smile:' => 'icon_smile.gif' ,
':???:' => 'icon_confused.gif' ,
':cool:' => 'icon_cool.gif' ,
':evil:' => 'icon_evil.gif' ,
':grin:' => 'icon_biggrin.gif' ,
':idea:' => 'icon_idea.gif' ,
':oops:' => 'icon_redface.gif' ,
':razz:' => 'icon_razz.gif' ,
':roll:' => 'icon_rolleyes.gif' ,
':wink:' => 'icon_wink.gif' ,
':cry:' => 'icon_cry.gif' ,
':eek:' => 'icon_surprised.gif' ,
':lol:' => 'icon_lol.gif' ,
':mad:' => 'icon_mad.gif' ,
':sad:' => 'icon_sad.gif' ,
'8-)' => 'icon_cool.gif' ,
'8-O' => 'icon_eek.gif' ,
':-(' => 'icon_sad.gif' ,
':-)' => 'icon_smile.gif' ,
':-?' => 'icon_confused.gif' ,
':-D' => 'icon_biggrin.gif' ,
':-P' => 'icon_razz.gif' ,
':-o' => 'icon_surprised.gif' ,
':-x' => 'icon_mad.gif' ,
':-|' => 'icon_neutral.gif' ,
';-)' => 'icon_wink.gif' ,
'8)' => 'icon_cool.gif' ,
'8O' => 'icon_eek.gif' ,
':(' => 'icon_sad.gif' ,
':)' => 'icon_smile.gif' ,
':?' => 'icon_confused.gif' ,
':D' => 'icon_biggrin.gif' ,
':P' => 'icon_razz.gif' ,
':o' => 'icon_surprised.gif' ,
':x' => 'icon_mad.gif' ,
':|' => 'icon_neutral.gif' ,
';)' => 'icon_wink.gif' ,
':!:' => 'icon_exclaim.gif' ,
':?:' => 'icon_question.gif' ,
);
}
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$siteurl = get_option ( 'siteurl' );
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foreach ( ( array ) $wpsmiliestrans as $smiley => $img ) {
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$wp_smiliessearch [] = '/(\s|^)' . preg_quote ( $smiley , '/' ) . '(\s|$)/' ;
$smiley_masked = attribute_escape ( trim ( $smiley ) );
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$wp_smiliesreplace [] = " <img src=' $siteurl /wp-includes/images/smilies/ $img ' alt=' $smiley_masked ' class='wp-smiley' /> " ;
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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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/**
* 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 () {
if ( ! function_exists ( 'dynamic_sidebar' ) ) {
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require_once ( ABSPATH . WPINC . '/widgets.php' );
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add_action ( '_admin_menu' , 'wp_widgets_add_menu' );
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}
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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 .
*/
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function wp_widgets_add_menu () {
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global $submenu ;
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$submenu [ 'themes.php' ][ 7 ] = array ( __ ( 'Widgets' ), 'switch_themes' , '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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while ( @ ob_end_flush () );
}
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/**
* Load the correct database class file .
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*
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* This function is used to load the database class file either at runtime or by
* wp - admin / setup - config . php We must globalise $wpdb to ensure that it is
* defined globally by the inline code in wp - db . php .
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*
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* @ since 2.5 . 0
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* @ global $wpdb WordPress Database Object
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*/
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function require_wp_db () {
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global $wpdb ;
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if ( file_exists ( WP_CONTENT_DIR . '/db.php' ) )
require_once ( WP_CONTENT_DIR . '/db.php' );
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else
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require_once ( ABSPATH . WPINC . '/wp-db.php' );
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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' );
?>
<! DOCTYPE html PUBLIC " -//W3C//DTD XHTML 1.0 Transitional//EN " " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd " >
< html xmlns = " http://www.w3.org/1999/xhtml " < ? php if ( function_exists ( 'language_attributes' ) ) language_attributes (); ?> >
< head >
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< meta http - equiv = " Content-Type " content = " text/html; charset=utf-8 " />
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< title > Database Error </ title >
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</ head >
< body >
< h1 > Error establishing a database connection </ h1 >
</ body >
</ html >
< ? php
die ();
}
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2007-10-10 22:11:18 +00:00
/**
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* Converts value to positive integer .
*
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* @ since 2.5 . 0
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*
* @ param mixed $maybeint Data you wish to have convered to an absolute integer
* @ return int An absolute integer
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*/
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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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*
* @ return bool Whether or not SSL access is available
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*/
function url_is_accessable_via_ssl ( $url )
{
if ( in_array ( 'curl' , get_loaded_extensions ())) {
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$ssl = preg_replace ( '/^http:\/\//' , 'https://' , $url );
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$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_exec ( $ch );
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$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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/**
* Secure URL , if available or the given URL .
*
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* @ since 2.5 . 0
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*
* @ param string $url Complete URL path with transport .
* @ return string Secure or regular URL path .
*/
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function atom_service_url_filter ( $url )
{
if ( url_is_accessable_via_ssl ( $url ) )
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return preg_replace ( '/^http:\/\//' , 'https://' , $url );
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else
return $url ;
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}
2007-12-21 02:53:57 +00:00
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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 an user error if WP_DEBUG is defined and
* is true .
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*
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* This function is to be used in every function in depreceated . php
*
* @ package WordPress
* @ package Debug
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* @ since 2.5 . 0
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* @ access private
*
* @ uses do_action () Calls 'deprecated_function_run' and passes the function name and what to use instead .
* @ uses apply_filters () Calls 'deprecated_function_trigger_error' and expects boolean value of true to do trigger or false to not trigger error .
*
* @ param string $function The function that was called
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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
*/
function _deprecated_function ( $function , $version , $replacement = null ) {
do_action ( 'deprecated_function_run' , $function , $replacement );
// Allow plugin to filter the output error trigger
if ( defined ( 'WP_DEBUG' ) && ( true === 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 .
2007-12-28 21:17:42 +00:00
*
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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 an user error if WP_DEBUG is defined and
* is true .
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*
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* This function is to be used in every file that is depreceated
*
* @ package WordPress
* @ package Debug
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* @ since 2.5 . 0
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* @ access private
*
* @ uses do_action () Calls 'deprecated_file_included' and passes the file name and what to use instead .
* @ uses apply_filters () Calls 'deprecated_file_trigger_error' and expects boolean value of true to do trigger or false to not trigger error .
*
* @ param string $file The file that was included
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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
*/
function _deprecated_file ( $file , $version , $replacement = null ) {
do_action ( 'deprecated_file_included' , $file , $replacement );
// Allow plugin to filter the output error trigger
if ( defined ( 'WP_DEBUG' ) && ( true === WP_DEBUG ) && apply_filters ( 'deprecated_file_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.' ), $file , $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.' ), $file , $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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* @ 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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* @ 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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/**
* 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 = '' ) {
if ( false !== strpos ( $file , '..' ))
return 1 ;
if ( false !== strpos ( $file , './' ))
return 1 ;
if ( ':' == substr ( $file , 1 , 1 ))
return 2 ;
if ( ! empty ( $allowed_files ) && ( ! in_array ( $file , $allowed_files ) ) )
return 3 ;
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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return ( isset ( $_SERVER [ 'HTTPS' ]) && 'on' == strtolower ( $_SERVER [ 'HTTPS' ]) ) ? true : false ;
2008-05-27 17:46:01 +00:00
}
2008-06-11 17:25:55 +00:00
2008-06-15 09:38:32 +00:00
/**
* 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 = '' ) {
static $forced ;
if ( '' != $force ) {
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$old_forced = $forced ;
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$forced = $force ;
return $old_forced ;
}
return $forced ;
}
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/**
* Whether to force SSL used for the Administration Panels .
*
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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 .
*/
2008-06-11 17:25:55 +00:00
function force_ssl_admin ( $force = '' ) {
static $forced ;
if ( '' != $force ) {
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$old_forced = $forced ;
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$forced = $force ;
return $old_forced ;
}
return $forced ;
}
2008-06-30 03:23:44 +00:00
/**
* 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 () {
if ( defined ( 'WP_SITEURL' ) && '' != WP_SITEURL ) {
$url = WP_SITEURL ;
} else {
$schema = ( isset ( $_SERVER [ 'HTTPS' ]) && strtolower ( $_SERVER [ 'HTTPS' ]) == 'on' ) ? 'https://' : 'http://' ;
$url = preg_replace ( '|/wp-admin/.*|i' , '' , $schema . $_SERVER [ 'HTTP_HOST' ] . $_SERVER [ 'REQUEST_URI' ]);
}
return $url ;
}
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?>