<?php
+/**
+ * Main WordPress API
+ *
+ * @package WordPress
+ */
+/**
+ * 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).
+ */
function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) {
- global $wp_locale;
$m = $mysqlstring;
if ( empty( $m ) )
return false;
- 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 )
- );
- }
+ if ( 'G' == $dateformatstring )
+ return strtotime( $m . ' +0000' );
- $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 )
- );
+ $i = strtotime( $m );
- if( 'U' == $dateformatstring )
+ if ( 'U' == $dateformatstring )
return $i;
- if ( -1 == $i || false == $i )
- $i = 0;
-
- 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 );
- }
- $j = @date( $dateformatstring, $i );
-
- /*
- if ( !$j ) // for debug purposes
- echo $i." ".$mysqlstring;
- */
-
- return $j;
+ if ( $translate )
+ return date_i18n( $dateformatstring, $i );
+ else
+ return date( $dateformatstring, $i );
}
-
+/**
+ * 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 $gmt is set to either '1' or 'true', then both types will use GMT time.
+ * if $gmt is false, the output is adjusted with the GMT offset in the WordPress option.
+ *
+ * @since 1.0.0
+ *
+ * @param string $type Either 'mysql' or 'timestamp'.
+ * @param int|bool $gmt Optional. Whether to use GMT timezone. Default is false.
+ * @return int|string String if $type is 'gmt', int if $type is 'timestamp'.
+ */
function current_time( $type, $gmt = 0 ) {
switch ( $type ) {
case 'mysql':
}
}
-
-function date_i18n( $dateformatstring, $unixtimestamp ) {
+/**
+ * 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 Optional. Unix timestamp.
+ * @param bool $gmt Optional, default is false. Whether to convert to GMT for time.
+ * @return string The date, translated if locale specifies it.
+ */
+function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) {
global $wp_locale;
$i = $unixtimestamp;
+ // Sanity check for PHP 5.1.0-
+ if ( false === $i || intval($i) < 0 ) {
+ if ( ! $gmt )
+ $i = current_time( 'timestamp' );
+ else
+ $i = time();
+ // we should not let date() interfere with our
+ // specially computed timestamp
+ $gmt = true;
+ }
+
+ // store original value for language with untypical grammars
+ // see http://core.trac.wordpress.org/ticket/9396
+ $req_format = $dateformatstring;
+
+ $datefunc = $gmt? 'gmdate' : 'date';
+
if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) {
- $datemonth = $wp_locale->get_month( date( 'm', $i ) );
+ $datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) );
$datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth );
- $dateweekday = $wp_locale->get_weekday( date( 'w', $i ) );
+ $dateweekday = $wp_locale->get_weekday( $datefunc( '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 ) );
+ $datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) );
+ $datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i ) );
$dateformatstring = ' '.$dateformatstring;
$dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring );
$dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring );
$dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );
}
- $j = @date( $dateformatstring, $i );
+ $timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' );
+ $timezone_formats_re = implode( '|', $timezone_formats );
+ if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) && wp_timezone_supported() ) {
+ $timezone_string = get_option( 'timezone_string' );
+ if ( $timezone_string ) {
+ $timezone_object = timezone_open( $timezone_string );
+ $date_object = date_create( null, $timezone_object );
+ foreach( $timezone_formats as $timezone_format ) {
+ if ( false !== strpos( $dateformatstring, $timezone_format ) ) {
+ $formatted = date_format( $date_object, $timezone_format );
+ $dateformatstring = ' '.$dateformatstring;
+ $dateformatstring = preg_replace( "/([^\\\])$timezone_format/", "\\1" . backslashit( $formatted ), $dateformatstring );
+ $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 );
+ }
+ }
+ }
+ }
+ $j = @$datefunc( $dateformatstring, $i );
+ // allow plugins to redo this entirely for languages with untypical grammars
+ $j = apply_filters('date_i18n', $j, $req_format, $i, $gmt);
return $j;
}
-
-function number_format_i18n( $number, $decimals = null ) {
+/**
+ * Convert integer number to format based on the locale.
+ *
+ * @since 2.3.0
+ *
+ * @param int $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.
+ */
+function number_format_i18n( $number, $decimals = 0 ) {
global $wp_locale;
- // let the user override the precision only
- $decimals = ( is_null( $decimals ) ) ? $wp_locale->number_format['decimals'] : intval( $decimals );
-
- return number_format( $number, $decimals, $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
+ $formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
+ return apply_filters( 'number_format_i18n', $formatted );
}
-
-function size_format( $bytes, $decimals = null ) {
- // technically the correct unit names for powers of 1024 are KiB, MiB etc
- // see http://en.wikipedia.org/wiki/Byte
+/**
+ * Convert number of bytes largest unit bytes will fit into.
+ *
+ * It is easier to read 1kB than 1024 bytes and 1MB 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. Deprecated.
+ * @return bool|string False on failure. Number string on success.
+ */
+function size_format( $bytes, $decimals = 0 ) {
$quant = array(
// ========================= Origin ====
'TB' => 1099511627776, // pow( 1024, 4)
'kB' => 1024, // pow( 1024, 1)
'B ' => 1, // pow( 1024, 0)
);
-
foreach ( $quant as $unit => $mag )
if ( doubleval($bytes) >= $mag )
return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit;
return false;
}
-
+/**
+ * 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'.
+ */
function get_weekstartend( $mysqlstring, $start_of_week = '' ) {
- $my = substr( $mysqlstring, 0, 4 );
- $mm = substr( $mysqlstring, 8, 2 );
- $md = substr( $mysqlstring, 5, 2 );
- $day = mktime( 0, 0, 0, $md, $mm, $my );
- $weekday = date( 'w', $day );
- $i = 86400;
- if( !is_numeric($start_of_week) )
+ $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', $day ); // The day of the week from the timestamp
+ if ( !is_numeric($start_of_week) )
$start_of_week = get_option( 'start_of_week' );
if ( $weekday < $start_of_week )
- $weekday = 7 - $start_of_week - $weekday;
-
- while ( $weekday > $start_of_week ) {
- $weekday = date( 'w', $day );
- if ( $weekday < $start_of_week )
- $weekday = 7 - $start_of_week - $weekday;
+ $weekday += 7;
- $day -= 86400;
- $i = 0;
- }
- $week['start'] = $day + 86400 - $i;
- $week['end'] = $week['start'] + 604799;
- return $week;
+ $start = $day - 86400 * ( $weekday - $start_of_week ); // The most recent week start day on or before $day
+ $end = $start + 604799; // $start + 7 days - 1 second
+ return compact( 'start', 'end' );
}
-
+/**
+ * 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.
+ */
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 ) )
- return $gm;
+ return @unserialize( $original );
return $original;
}
-
+/**
+ * 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.
+ */
function is_serialized( $data ) {
// if it isn't a string, it isn't serialized
- if ( !is_string( $data ) )
+ if ( ! is_string( $data ) )
return false;
$data = trim( $data );
- if ( 'N;' == $data )
+ if ( 'N;' == $data )
return true;
- if ( !preg_match( '/^([adObis]):/', $data, $badions ) )
+ $length = strlen( $data );
+ if ( $length < 4 )
+ return false;
+ if ( ':' !== $data[1] )
return false;
- switch ( $badions[1] ) {
+ $lastc = $data[$length-1];
+ if ( ';' !== $lastc && '}' !== $lastc )
+ return false;
+ $token = $data[0];
+ switch ( $token ) {
+ case 's' :
+ if ( '"' !== $data[$length-2] )
+ return false;
case 'a' :
case 'O' :
- case 's' :
- if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) )
- return true;
- break;
+ return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data );
case 'b' :
case 'i' :
case 'd' :
- if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) )
- return true;
- break;
+ return (bool) preg_match( "/^{$token}:[0-9.E-]+;\$/", $data );
}
return false;
}
-
+/**
+ * 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.
+ */
function is_serialized_string( $data ) {
// if it isn't a string, it isn't a serialized string
if ( !is_string( $data ) )
return false;
}
-
-/* Options functions */
-
-// expects $setting to already be SQL-escaped
-function get_option( $setting ) {
+/**
+ * Retrieve option value based on name of option.
+ *
+ * If the option does not exist or does not have a value, then the return value
+ * will be false. This is useful to check whether you need to install an option
+ * and is commonly used during installation of plugin options and to test
+ * whether upgrading is required.
+ *
+ * If the option was serialized then it will be unserialized when it is returned.
+ *
+ * @since 1.5.0
+ * @package WordPress
+ * @subpackage Option
+ * @uses apply_filters() Calls 'pre_option_$option' before checking the option.
+ * Any value other than false will "short-circuit" the retrieval of the option
+ * and return the returned value. You should not try to override special options,
+ * but you will not be prevented from doing so.
+ * @uses apply_filters() Calls 'option_$option', after checking the option, with
+ * the option value.
+ *
+ * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
+ * @return mixed Value set for the option.
+ */
+function get_option( $option, $default = false ) {
global $wpdb;
// Allow plugins to short-circuit options.
- $pre = apply_filters( 'pre_option_' . $setting, false );
+ $pre = apply_filters( 'pre_option_' . $option, false );
if ( false !== $pre )
return $pre;
- // prevent non-existent options from triggering multiple queries
- $notoptions = wp_cache_get( 'notoptions', 'options' );
- if ( isset( $notoptions[$setting] ) )
+ $option = trim($option);
+ if ( empty($option) )
+ return false;
+
+ if ( defined( 'WP_SETUP_CONFIG' ) )
return false;
- $alloptions = wp_load_alloptions();
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ // prevent non-existent options from triggering multiple queries
+ $notoptions = wp_cache_get( 'notoptions', 'options' );
+ if ( isset( $notoptions[$option] ) )
+ return $default;
- if ( isset( $alloptions[$setting] ) ) {
- $value = $alloptions[$setting];
- } else {
- $value = wp_cache_get( $setting, 'options' );
-
- if ( false === $value ) {
- if ( defined( 'WP_INSTALLING' ) )
- $supress = $wpdb->suppress_errors();
- // expected_slashed ($setting)
- $row = $wpdb->get_row( "SELECT option_value FROM $wpdb->options WHERE option_name = '$setting' LIMIT 1" );
- if ( defined( 'WP_INSTALLING' ) )
- $wpdb->suppress_errors($suppress);
-
- if ( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values
- $value = $row->option_value;
- wp_cache_add( $setting, $value, 'options' );
- } else { // option does not exist, so we must cache its non-existence
- $notoptions[$setting] = true;
- wp_cache_set( 'notoptions', $notoptions, 'options' );
- return false;
+ $alloptions = wp_load_alloptions();
+
+ if ( isset( $alloptions[$option] ) ) {
+ $value = $alloptions[$option];
+ } else {
+ $value = wp_cache_get( $option, 'options' );
+
+ if ( false === $value ) {
+ $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
+
+ // Has to be get_row instead of get_var because of funkiness with 0, false, null values
+ if ( is_object( $row ) ) {
+ $value = $row->option_value;
+ wp_cache_add( $option, $value, 'options' );
+ } else { // option does not exist, so we must cache its non-existence
+ $notoptions[$option] = true;
+ wp_cache_set( 'notoptions', $notoptions, 'options' );
+ return $default;
+ }
}
}
+ } else {
+ $suppress = $wpdb->suppress_errors();
+ $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) );
+ $wpdb->suppress_errors( $suppress );
+ if ( is_object( $row ) )
+ $value = $row->option_value;
+ else
+ return $default;
}
// If home is not set use siteurl.
- if ( 'home' == $setting && '' == $value )
+ if ( 'home' == $option && '' == $value )
return get_option( 'siteurl' );
- if ( in_array( $setting, array('siteurl', 'home', 'category_base', 'tag_base') ) )
+ if ( in_array( $option, array('siteurl', 'home', 'category_base', 'tag_base') ) )
$value = untrailingslashit( $value );
- return apply_filters( 'option_' . $setting, maybe_unserialize( $value ) );
+ return apply_filters( 'option_' . $option, maybe_unserialize( $value ) );
}
-
+/**
+ * Protect WordPress special option from being modified.
+ *
+ * Will die if $option is in protected list. Protected options are 'alloptions'
+ * and 'notoptions' options.
+ *
+ * @since 2.2.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @param string $option Option name.
+ */
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 ) ) );
+ wp_die( sprintf( __( '%s is a protected WP option and may not be modified' ), esc_html( $option ) ) );
}
+/**
+ * Print option value after sanitizing for forms.
+ *
+ * @uses attr Sanitizes value.
+ * @since 1.5.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @param string $option Option name.
+ */
function form_option( $option ) {
- echo attribute_escape (get_option( $option ) );
-}
-
-function get_alloptions() {
- global $wpdb, $wp_queries;
- $show = $wpdb->hide_errors();
- if ( !$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" );
- $wpdb->show_errors($show);
-
- foreach ( $options as $option ) {
- // "When trying to design a foolproof system,
- // never underestimate the ingenuity of the fools :)" -- Dougal
- if ( in_array( $option->option_name, array( 'siteurl', 'home', 'category_base' ) ) )
- $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 );
- }
- return apply_filters( 'all_options', $all_options );
+ echo esc_attr( get_option( $option ) );
}
-
+/**
+ * Loads and caches all autoloaded options, if available or all options.
+ *
+ * @since 2.2.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @return array List of all options.
+ */
function wp_load_alloptions() {
global $wpdb;
- $alloptions = wp_cache_get( 'alloptions', 'options' );
+ if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
+ $alloptions = wp_cache_get( 'alloptions', 'options' );
+ else
+ $alloptions = false;
if ( !$alloptions ) {
$suppress = $wpdb->suppress_errors();
$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" );
$wpdb->suppress_errors($suppress);
$alloptions = array();
- foreach ( (array) $alloptions_db as $o )
+ foreach ( (array) $alloptions_db as $o ) {
$alloptions[$o->option_name] = $o->option_value;
- wp_cache_add( 'alloptions', $alloptions, 'options' );
+ }
+ if ( !defined( 'WP_INSTALLING' ) || !is_multisite() )
+ wp_cache_add( 'alloptions', $alloptions, 'options' );
}
+
return $alloptions;
}
+/**
+ * Loads and caches certain often requested site options if is_multisite() and a peristent cache is not being used.
+ *
+ * @since 3.0.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @param int $site_id Optional site ID for which to query the options. Defaults to the current site.
+ */
+function wp_load_core_site_options( $site_id = null ) {
+ global $wpdb, $_wp_using_ext_object_cache;
+
+ if ( !is_multisite() || $_wp_using_ext_object_cache || defined( 'WP_INSTALLING' ) )
+ return;
+
+ if ( empty($site_id) )
+ $site_id = $wpdb->siteid;
+
+ $core_options = array('site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled' );
+
+ $core_options_in = "'" . implode("', '", $core_options) . "'";
+ $options = $wpdb->get_results( $wpdb->prepare("SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN ($core_options_in) AND site_id = %d", $site_id) );
+
+ foreach ( $options as $option ) {
+ $key = $option->meta_key;
+ $cache_key = "{$site_id}:$key";
+ $option->meta_value = maybe_unserialize( $option->meta_value );
+
+ wp_cache_set( $cache_key, $option->meta_value, 'site-options' );
+ }
+}
-// expects $option_name to NOT be SQL-escaped
-function update_option( $option_name, $newvalue ) {
+/**
+ * Update the value of an option that was already added.
+ *
+ * You do not need to serialize values. If the value needs to be serialized, then
+ * it will be serialized before it is inserted into the database. Remember,
+ * resources can not be serialized or added as an option.
+ *
+ * If the option does not exist, then the option will be added with the option
+ * value, but you will not be able to set whether it is autoloaded. If you want
+ * to set whether an option is autoloaded, then you need to use the add_option().
+ *
+ * @since 1.0.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the
+ * option value to be stored.
+ * @uses do_action() Calls 'update_option' hook before updating the option.
+ * @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success.
+ *
+ * @param string $option Option name. Expected to not be SQL-escaped.
+ * @param mixed $newvalue Option value. Expected to not be SQL-escaped.
+ * @return bool False if value was not updated and true if value was updated.
+ */
+function update_option( $option, $newvalue ) {
global $wpdb;
- wp_protect_special_option( $option_name );
+ $option = trim($option);
+ if ( empty($option) )
+ return false;
+
+ wp_protect_special_option( $option );
+
+ if ( is_object($newvalue) )
+ $newvalue = wp_clone($newvalue);
- $safe_option_name = $wpdb->escape( $option_name );
- $newvalue = sanitize_option( $option_name, $newvalue );
+ $newvalue = sanitize_option( $option, $newvalue );
+ $oldvalue = get_option( $option );
+ $newvalue = apply_filters( 'pre_update_option_' . $option, $newvalue, $oldvalue );
// If the new and old values are the same, no need to update.
- $oldvalue = get_option( $safe_option_name );
if ( $newvalue === $oldvalue )
return false;
- if ( false === $oldvalue ) {
- add_option( $option_name, $newvalue );
- return true;
- }
+ if ( false === $oldvalue )
+ return add_option( $option, $newvalue );
$notoptions = wp_cache_get( 'notoptions', 'options' );
- if ( is_array( $notoptions ) && isset( $notoptions[$option_name] ) ) {
- unset( $notoptions[$option_name] );
+ if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
+ unset( $notoptions[$option] );
wp_cache_set( 'notoptions', $notoptions, 'options' );
}
$_newvalue = $newvalue;
$newvalue = maybe_serialize( $newvalue );
- $alloptions = wp_load_alloptions();
- if ( isset( $alloptions[$option_name] ) ) {
- $alloptions[$option_name] = $newvalue;
- wp_cache_set( 'alloptions', $alloptions, 'options' );
- } else {
- wp_cache_set( $option_name, $newvalue, 'options' );
+ do_action( 'update_option', $option, $oldvalue, $_newvalue );
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ $alloptions = wp_load_alloptions();
+ if ( isset( $alloptions[$option] ) ) {
+ $alloptions[$option] = $_newvalue;
+ wp_cache_set( 'alloptions', $alloptions, 'options' );
+ } else {
+ wp_cache_set( $option, $_newvalue, 'options' );
+ }
}
- $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->options SET option_value = %s WHERE option_name = %s", $newvalue, $option_name ) );
- if ( $wpdb->rows_affected == 1 ) {
- do_action( "update_option_{$option_name}", $oldvalue, $_newvalue );
+ $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) );
+
+ if ( $result ) {
+ do_action( "update_option_{$option}", $oldvalue, $_newvalue );
+ do_action( 'updated_option', $option, $oldvalue, $_newvalue );
return true;
}
return false;
}
-
-// thx Alex Stapleton, http://alex.vort-x.net/blog/
-// expects $name to NOT be SQL-escaped
-function add_option( $name, $value = '', $deprecated = '', $autoload = 'yes' ) {
+/**
+ * Add a new option.
+ *
+ * You do not need to serialize values. If the value needs to be serialized, then
+ * it will be serialized before it is inserted into the database. Remember,
+ * resources can not be serialized or added as an option.
+ *
+ * You can create options without values and then add values later. Does not
+ * check whether the option has already been added, but does check that you
+ * aren't adding a protected WordPress option. Care should be taken to not name
+ * options the same as the ones which are protected and to not add options
+ * that were already added.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 1.0.0
+ *
+ * @uses do_action() Calls 'add_option' hook before adding the option.
+ * @uses do_action() Calls 'add_option_$option' and 'added_option' hooks on success.
+ *
+ * @param string $option Name of option to add. Expected to not be SQL-escaped.
+ * @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.
+ * @param mixed $deprecated Optional. Description. Not used anymore.
+ * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up.
+ * @return null returns when finished.
+ */
+function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) {
global $wpdb;
- wp_protect_special_option( $name );
- $safe_name = $wpdb->escape( $name );
- $value = sanitize_option( $name, $value );
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.3' );
+
+ $option = trim($option);
+ if ( empty($option) )
+ return false;
+
+ wp_protect_special_option( $option );
+
+ if ( is_object($value) )
+ $value = wp_clone($value);
+
+ $value = sanitize_option( $option, $value );
// Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query
$notoptions = wp_cache_get( 'notoptions', 'options' );
- if ( !is_array( $notoptions ) || !isset( $notoptions[$name] ) )
- if ( false !== get_option( $safe_name ) )
+ if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) )
+ if ( false !== get_option( $option ) )
return;
+ $_value = $value;
$value = maybe_serialize( $value );
$autoload = ( 'no' === $autoload ) ? 'no' : 'yes';
-
- if ( 'yes' == $autoload ) {
- $alloptions = wp_load_alloptions();
- $alloptions[$name] = $value;
- wp_cache_set( 'alloptions', $alloptions, 'options' );
- } else {
- wp_cache_set( $name, $value, 'options' );
+ do_action( 'add_option', $option, $_value );
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ if ( 'yes' == $autoload ) {
+ $alloptions = wp_load_alloptions();
+ $alloptions[$option] = $value;
+ wp_cache_set( 'alloptions', $alloptions, 'options' );
+ } else {
+ wp_cache_set( $option, $value, 'options' );
+ }
}
// This option exists now
$notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh
- if ( is_array( $notoptions ) && isset( $notoptions[$name] ) ) {
- unset( $notoptions[$name] );
+ if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) {
+ unset( $notoptions[$option] );
wp_cache_set( 'notoptions', $notoptions, 'options' );
}
- $wpdb->query( $wpdb->prepare( "INSERT INTO $wpdb->options (option_name, option_value, autoload) VALUES (%s, %s, %s)", $name, $value, $autoload ) );
+ $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $value, $autoload ) );
- do_action( "add_option_{$name}", $name, $value );
- return;
+ if ( $result ) {
+ do_action( "add_option_{$option}", $option, $_value );
+ do_action( 'added_option', $option, $_value );
+ return true;
+ }
+ return false;
}
-
-function delete_option( $name ) {
+/**
+ * Removes option by name. Prevents removal of protected WordPress options.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 1.2.0
+ *
+ * @uses do_action() Calls 'delete_option' hook before option is deleted.
+ * @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success.
+ *
+ * @param string $option Name of option to remove. Expected to not be SQL-escaped.
+ * @return bool True, if option is successfully deleted. False on failure.
+ */
+function delete_option( $option ) {
global $wpdb;
- wp_protect_special_option( $name );
+ wp_protect_special_option( $option );
// Get the ID, if no ID then return
- // expected_slashed ($name)
- $option = $wpdb->get_row( "SELECT option_id, autoload FROM $wpdb->options WHERE option_name = '$name'" );
- if ( is_null($option) || !$option->option_id )
+ $row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) );
+ if ( is_null( $row ) )
return false;
- // expected_slashed ($name)
- $wpdb->query( "DELETE FROM $wpdb->options WHERE option_name = '$name'" );
- if ( 'yes' == $option->autoload ) {
- $alloptions = wp_load_alloptions();
- if ( isset( $alloptions[$name] ) ) {
- unset( $alloptions[$name] );
- wp_cache_set( 'alloptions', $alloptions, 'options' );
+ do_action( 'delete_option', $option );
+ $result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) );
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ if ( 'yes' == $row->autoload ) {
+ $alloptions = wp_load_alloptions();
+ if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) {
+ unset( $alloptions[$option] );
+ wp_cache_set( 'alloptions', $alloptions, 'options' );
+ }
+ } else {
+ wp_cache_delete( $option, 'options' );
}
- } else {
- wp_cache_delete( $name, 'options' );
}
- return true;
+ if ( $result ) {
+ do_action( "delete_option_$option", $option );
+ do_action( 'deleted_option', $option );
+ return true;
+ }
+ return false;
}
+/**
+ * Delete a transient
+ *
+ * @since 2.8.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted.
+ * @uses do_action() Calls 'deleted_transient' hook on success.
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped.
+ * @return bool true if successful, false otherwise
+ */
+function delete_transient( $transient ) {
+ global $_wp_using_ext_object_cache;
-function maybe_serialize( $data ) {
- if ( is_string( $data ) )
- $data = trim( $data );
- elseif ( is_array( $data ) || is_object( $data ) )
- return serialize( $data );
- if ( is_serialized( $data ) )
- return serialize( $data );
- return $data;
-}
-
+ do_action( 'delete_transient_' . $transient, $transient );
-function make_url_footnote( $content ) {
- preg_match_all( '/<a(.+?)href=\"(.+?)\"(.*?)>(.+?)<\/a>/', $content, $matches );
- $j = 0;
- for ( $i=0; $i<count($matches[0]); $i++ ) {
- $links_summary = ( !$j ) ? "\n" : $links_summary;
- $j++;
- $link_match = $matches[0][$i];
- $link_number = '['.($i+1).']';
- $link_url = $matches[2][$i];
- $link_text = $matches[4][$i];
- $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;
+ if ( $_wp_using_ext_object_cache ) {
+ $result = wp_cache_delete( $transient, 'transient' );
+ } else {
+ $option_timeout = '_transient_timeout_' . $transient;
+ $option = '_transient_' . $transient;
+ $result = delete_option( $option );
+ if ( $result )
+ delete_option( $option_timeout );
}
- $content = strip_tags( $content );
- $content .= $links_summary;
- return $content;
+
+ if ( $result )
+ do_action( 'deleted_transient', $transient );
+ return $result;
}
+/**
+ * Get the value of a transient
+ *
+ * If the transient does not exist or does not have a value, then the return value
+ * will be false.
+ *
+ * @uses apply_filters() Calls 'pre_transient_$transient' hook before checking the transient.
+ * Any value other than false will "short-circuit" the retrieval of the transient
+ * and return the returned value.
+ * @uses apply_filters() Calls 'transient_$option' hook, after checking the transient, with
+ * the transient value.
+ *
+ * @since 2.8.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped
+ * @return mixed Value of transient
+ */
+function get_transient( $transient ) {
+ global $_wp_using_ext_object_cache;
+
+ $pre = apply_filters( 'pre_transient_' . $transient, false );
+ if ( false !== $pre )
+ return $pre;
-function xmlrpc_getposttitle( $content ) {
- global $post_default_title;
- if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {
- $post_title = $matchtitle[0];
- $post_title = preg_replace( '/<title>/si', '', $post_title );
- $post_title = preg_replace( '/<\/title>/si', '', $post_title );
+ if ( $_wp_using_ext_object_cache ) {
+ $value = wp_cache_get( $transient, 'transient' );
} else {
- $post_title = $post_default_title;
+ $transient_option = '_transient_' . $transient;
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ // If option is not in alloptions, it is not autoloaded and thus has a timeout
+ $alloptions = wp_load_alloptions();
+ if ( !isset( $alloptions[$transient_option] ) ) {
+ $transient_timeout = '_transient_timeout_' . $transient;
+ if ( get_option( $transient_timeout ) < time() ) {
+ delete_option( $transient_option );
+ delete_option( $transient_timeout );
+ return false;
+ }
+ }
+ }
+
+ $value = get_option( $transient_option );
}
- return $post_title;
+
+ return apply_filters( 'transient_' . $transient, $value );
+}
+
+/**
+ * Set/update the value of a transient
+ *
+ * You do not need to serialize values. If the value needs to be serialized, then
+ * it will be serialized before it is set.
+ *
+ * @since 2.8.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @uses apply_filters() Calls 'pre_set_transient_$transient' hook to allow overwriting the
+ * transient value to be stored.
+ * @uses do_action() Calls 'set_transient_$transient' and 'setted_transient' hooks on success.
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped.
+ * @param mixed $value Transient value. Expected to not be SQL-escaped.
+ * @param int $expiration Time until expiration in seconds, default 0
+ * @return bool False if value was not set and true if value was set.
+ */
+function set_transient( $transient, $value, $expiration = 0 ) {
+ global $_wp_using_ext_object_cache;
+
+ $value = apply_filters( 'pre_set_transient_' . $transient, $value );
+
+ if ( $_wp_using_ext_object_cache ) {
+ $result = wp_cache_set( $transient, $value, 'transient', $expiration );
+ } else {
+ $transient_timeout = '_transient_timeout_' . $transient;
+ $transient = '_transient_' . $transient;
+ if ( false === get_option( $transient ) ) {
+ $autoload = 'yes';
+ if ( $expiration ) {
+ $autoload = 'no';
+ add_option( $transient_timeout, time() + $expiration, '', 'no' );
+ }
+ $result = add_option( $transient, $value, '', $autoload );
+ } else {
+ if ( $expiration )
+ update_option( $transient_timeout, time() + $expiration );
+ $result = update_option( $transient, $value );
+ }
+ }
+ if ( $result ) {
+ do_action( 'set_transient_' . $transient );
+ do_action( 'setted_transient', $transient );
+ }
+ return $result;
+}
+
+/**
+ * Saves and restores user interface settings stored in a cookie.
+ *
+ * Checks if the current user-settings cookie is updated and stores it. When no
+ * cookie exists (different browser used), adds the last saved cookie restoring
+ * the settings.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.7.0
+ */
+function wp_user_settings() {
+
+ if ( ! is_admin() )
+ return;
+
+ if ( defined('DOING_AJAX') )
+ return;
+
+ if ( ! $user = wp_get_current_user() )
+ return;
+
+ $settings = get_user_option( 'user-settings', $user->ID );
+
+ if ( isset( $_COOKIE['wp-settings-' . $user->ID] ) ) {
+ $cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );
+
+ if ( ! empty( $cookie ) && strpos( $cookie, '=' ) ) {
+ if ( $cookie == $settings )
+ return;
+
+ $last_time = (int) get_user_option( 'user-settings-time', $user->ID );
+ $saved = isset( $_COOKIE['wp-settings-time-' . $user->ID]) ? preg_replace( '/[^0-9]/', '', $_COOKIE['wp-settings-time-' . $user->ID] ) : 0;
+
+ if ( $saved > $last_time ) {
+ update_user_option( $user->ID, 'user-settings', $cookie, false );
+ update_user_option( $user->ID, 'user-settings-time', time() - 5, false );
+ return;
+ }
+ }
+ }
+
+ setcookie( 'wp-settings-' . $user->ID, $settings, time() + 31536000, SITECOOKIEPATH );
+ setcookie( 'wp-settings-time-' . $user->ID, time(), time() + 31536000, SITECOOKIEPATH );
+ $_COOKIE['wp-settings-' . $user->ID] = $settings;
+}
+
+/**
+ * Retrieve user interface setting value based on setting name.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.7.0
+ *
+ * @param string $name The name of the setting.
+ * @param string $default Optional default value to return when $name is not set.
+ * @return mixed the last saved user setting or the default value/false if it doesn't exist.
+ */
+function get_user_setting( $name, $default = false ) {
+
+ $all = get_all_user_settings();
+
+ return isset($all[$name]) ? $all[$name] : $default;
+}
+
+/**
+ * Add or update user interface setting.
+ *
+ * Both $name and $value can contain only ASCII letters, numbers and underscores.
+ * This function has to be used before any output has started as it calls setcookie().
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.8.0
+ *
+ * @param string $name The name of the setting.
+ * @param string $value The value for the setting.
+ * @return bool true if set successfully/false if not.
+ */
+function set_user_setting( $name, $value ) {
+
+ if ( headers_sent() )
+ return false;
+
+ $all = get_all_user_settings();
+ $name = preg_replace( '/[^A-Za-z0-9_]+/', '', $name );
+
+ if ( empty($name) )
+ return false;
+
+ $all[$name] = $value;
+
+ return wp_set_all_user_settings($all);
+}
+
+/**
+ * Delete user interface settings.
+ *
+ * Deleting settings would reset them to the defaults.
+ * This function has to be used before any output has started as it calls setcookie().
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.7.0
+ *
+ * @param mixed $names The name or array of names of the setting to be deleted.
+ * @return bool true if deleted successfully/false if not.
+ */
+function delete_user_setting( $names ) {
+
+ if ( headers_sent() )
+ return false;
+
+ $all = get_all_user_settings();
+ $names = (array) $names;
+
+ foreach ( $names as $name ) {
+ if ( isset($all[$name]) ) {
+ unset($all[$name]);
+ $deleted = true;
+ }
+ }
+
+ if ( isset($deleted) )
+ return wp_set_all_user_settings($all);
+
+ return false;
+}
+
+/**
+ * Retrieve all user interface settings.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.7.0
+ *
+ * @return array the last saved user settings or empty array.
+ */
+function get_all_user_settings() {
+ global $_updated_user_settings;
+
+ if ( ! $user = wp_get_current_user() )
+ return array();
+
+ if ( isset($_updated_user_settings) && is_array($_updated_user_settings) )
+ return $_updated_user_settings;
+
+ $all = array();
+ if ( isset($_COOKIE['wp-settings-' . $user->ID]) ) {
+ $cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] );
+
+ if ( $cookie && strpos($cookie, '=') ) // the '=' cannot be 1st char
+ parse_str($cookie, $all);
+
+ } else {
+ $option = get_user_option('user-settings', $user->ID);
+ if ( $option && is_string($option) )
+ parse_str( $option, $all );
+ }
+
+ return $all;
+}
+
+/**
+ * Private. Set all user interface settings.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.8.0
+ *
+ * @param unknown $all
+ * @return bool
+ */
+function wp_set_all_user_settings($all) {
+ global $_updated_user_settings;
+
+ if ( ! $user = wp_get_current_user() )
+ return false;
+
+ $_updated_user_settings = $all;
+ $settings = '';
+ foreach ( $all as $k => $v ) {
+ $v = preg_replace( '/[^A-Za-z0-9_]+/', '', $v );
+ $settings .= $k . '=' . $v . '&';
+ }
+
+ $settings = rtrim($settings, '&');
+
+ update_user_option( $user->ID, 'user-settings', $settings, false );
+ update_user_option( $user->ID, 'user-settings-time', time(), false );
+
+ return true;
+}
+
+/**
+ * Delete the user settings of the current user.
+ *
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.7.0
+ */
+function delete_all_user_settings() {
+ if ( ! $user = wp_get_current_user() )
+ return;
+
+ update_user_option( $user->ID, 'user-settings', '', false );
+ setcookie('wp-settings-' . $user->ID, ' ', time() - 31536000, SITECOOKIEPATH);
+}
+
+/**
+ * Serialize data, if needed.
+ *
+ * @since 2.0.5
+ *
+ * @param mixed $data Data that might be serialized.
+ * @return mixed A scalar data
+ */
+function maybe_serialize( $data ) {
+ if ( is_array( $data ) || is_object( $data ) )
+ return serialize( $data );
+
+ if ( is_serialized( $data ) )
+ return serialize( $data );
+
+ return $data;
}
+/**
+ * Retrieve post title from XMLRPC XML.
+ *
+ * If the title element is not part of the XML, then the default post title from
+ * the $post_default_title will be used instead.
+ *
+ * @package WordPress
+ * @subpackage XMLRPC
+ * @since 0.71
+ *
+ * @global string $post_default_title Default XMLRPC post title.
+ *
+ * @param string $content XMLRPC XML Request content
+ * @return string Post title
+ */
+function xmlrpc_getposttitle( $content ) {
+ global $post_default_title;
+ if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {
+ $post_title = $matchtitle[1];
+ } else {
+ $post_title = $post_default_title;
+ }
+ return $post_title;
+}
+/**
+ * Retrieve the post category or categories from XMLRPC XML.
+ *
+ * If the category element is not found, then the default post category will be
+ * used. The return type then would be what $post_default_category. If the
+ * category is found, then it will always be an array.
+ *
+ * @package WordPress
+ * @subpackage XMLRPC
+ * @since 0.71
+ *
+ * @global string $post_default_category Default XMLRPC post category.
+ *
+ * @param string $content XMLRPC XML Request content
+ * @return string|array List of categories or category name.
+ */
function xmlrpc_getpostcategory( $content ) {
global $post_default_category;
if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) {
return $post_category;
}
-
+/**
+ * XMLRPC XML content without title and category elements.
+ *
+ * @package WordPress
+ * @subpackage XMLRPC
+ * @since 0.71
+ *
+ * @param string $content XMLRPC XML Request content
+ * @return string XMLRPC XML Request content without title and category elements.
+ */
function xmlrpc_removepostdata( $content ) {
$content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content );
$content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content );
return $content;
}
-
+/**
+ * Open the file handle for debugging.
+ *
+ * This function is used for XMLRPC feature, but it is general purpose enough
+ * to be used in anywhere.
+ *
+ * @see fopen() for mode options.
+ * @package WordPress
+ * @subpackage Debug
+ * @since 0.71
+ * @uses $debug Used for whether debugging is enabled.
+ *
+ * @param string $filename File path to debug file.
+ * @param string $mode Same as fopen() mode parameter.
+ * @return bool|resource File handle. False on failure.
+ */
function debug_fopen( $filename, $mode ) {
global $debug;
if ( 1 == $debug ) {
}
}
-
+/**
+ * Write contents to the file used for debugging.
+ *
+ * Technically, this can be used to write to any file handle when the global
+ * $debug is set to 1 or true.
+ *
+ * @package WordPress
+ * @subpackage Debug
+ * @since 0.71
+ * @uses $debug Used for whether debugging is enabled.
+ *
+ * @param resource $fp File handle for debugging file.
+ * @param string $string Content to write to debug file.
+ */
function debug_fwrite( $fp, $string ) {
global $debug;
if ( 1 == $debug )
fwrite( $fp, $string );
}
-
+/**
+ * Close the debugging file handle.
+ *
+ * Technically, this can be used to close any file handle when the global $debug
+ * is set to 1 or true.
+ *
+ * @package WordPress
+ * @subpackage Debug
+ * @since 0.71
+ * @uses $debug Used for whether debugging is enabled.
+ *
+ * @param resource $fp Debug File handle.
+ */
function debug_fclose( $fp ) {
global $debug;
if ( 1 == $debug )
fclose( $fp );
}
+/**
+ * Check content for video and audio links to add as enclosures.
+ *
+ * Will not add enclosures that have already been added and will
+ * remove enclosures that are no longer in the post. This is called as
+ * pingbacks and trackbacks.
+ *
+ * @package WordPress
+ * @since 1.5.0
+ *
+ * @uses $wpdb
+ *
+ * @param string $content Post Content
+ * @param int $post_ID Post ID
+ */
function do_enclose( $content, $post_ID ) {
global $wpdb;
+
+ //TODO: Tidy this ghetto code up and make the debug code optional
include_once( ABSPATH . WPINC . '/class-IXR.php' );
$log = debug_fopen( ABSPATH . 'enclosures.log', 'a' );
debug_fwrite( $log, 'Post contents:' );
debug_fwrite( $log, $content . "\n" );
- foreach ( $post_links_temp[0] as $link_test ) {
+ foreach ( $pung as $link_test ) {
+ if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post
+ $mid = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $link_test ) . '%') );
+ do_action( 'delete_postmeta', $mid );
+ $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN(%s)", implode( ',', $mid ) ) );
+ do_action( 'deleted_postmeta', $mid );
+ }
+ }
+
+ foreach ( (array) $post_links_temp[0] as $link_test ) {
if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already
- $test = parse_url( $link_test );
+ $test = @parse_url( $link_test );
+ if ( false === $test )
+ continue;
if ( isset( $test['query'] ) )
$post_links[] = $link_test;
- elseif ( $test['path'] != '/' && $test['path'] != '' )
+ elseif ( isset($test['path']) && ( $test['path'] != '/' ) && ($test['path'] != '' ) )
$post_links[] = $link_test;
}
}
- foreach ( $post_links as $url ) {
- if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, $url . '%' ) ) ) {
+ foreach ( (array) $post_links as $url ) {
+ if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $url ) . '%' ) ) ) {
+
if ( $headers = wp_get_http_headers( $url) ) {
$len = (int) $headers['content-length'];
- $type = $wpdb->escape( $headers['content-type'] );
+ $type = $headers['content-type'];
$allowed_types = array( 'video', 'audio' );
+
+ // Check to see if we can figure out the mime type from
+ // the extension
+ $url_parts = @parse_url( $url );
+ if ( false !== $url_parts ) {
+ $extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION );
+ if ( !empty( $extension ) ) {
+ foreach ( get_allowed_mime_types( ) as $exts => $mime ) {
+ if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
+ $type = $mime;
+ break;
+ }
+ }
+ }
+ }
+
if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) {
$meta_value = "$url\n$len\n$type\n";
- $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` )
- VALUES ( %d, 'enclosure' , %s)", $post_ID, $meta_value ) );
+ $wpdb->insert($wpdb->postmeta, array('post_id' => $post_ID, 'meta_key' => 'enclosure', 'meta_value' => $meta_value) );
+ do_action( 'added_postmeta', $wpdb->insert_id, $post_ID, 'enclosure', $meta_value );
}
}
}
}
}
-// perform a HTTP HEAD or GET request
-// if $file_path is a writable filename, this will do a GET request and write the file to that path
-// returns a list of HTTP headers
+/**
+ * Perform a HTTP HEAD or GET request.
+ *
+ * If $file_path is a writable filename, this will do a GET request and write
+ * the file to that path.
+ *
+ * @since 2.5.0
+ *
+ * @param string $url URL to fetch.
+ * @param string|bool $file_path Optional. File path to write request to.
+ * @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false.
+ * @return bool|string False on failure and string of headers if HEAD request.
+ */
function wp_get_http( $url, $file_path = false, $red = 1 ) {
- global $wp_version;
@set_time_limit( 60 );
if ( $red > 5 )
- return false;
+ return false;
- $parts = parse_url( $url );
- $file = $parts['path'] . ( ( $parts['query'] ) ? '?' . $parts['query'] : '' );
- $host = $parts['host'];
- if ( !isset( $parts['port'] ) )
- $parts['port'] = 80;
+ $options = array();
+ $options['redirection'] = 5;
- if ( $file_path )
- $request_type = 'GET';
+ if ( false == $file_path )
+ $options['method'] = 'HEAD';
else
- $request_type = 'HEAD';
+ $options['method'] = 'GET';
- $head = "$request_type $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n";
+ $response = wp_remote_request($url, $options);
- $fp = @fsockopen( $host, $parts['port'], $err_num, $err_msg, 3 );
- if ( !$fp )
+ if ( is_wp_error( $response ) )
return false;
- $response = '';
- fputs( $fp, $head );
- while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false )
- $response .= fgets( $fp, 2048 );
- preg_match_all( '/(.*?): (.*)\r/', $response, $matches );
- $count = count( $matches[1] );
- for ( $i = 0; $i < $count; $i++ ) {
- $key = strtolower( $matches[1][$i] );
- $headers["$key"] = $matches[2][$i];
- }
-
- preg_match( '/.*([0-9]{3}).*/', $response, $return );
- $headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404
-
- $code = $headers['response'];
- if ( ( '302' == $code || '301' == $code ) && isset( $headers['location'] ) ) {
- fclose($fp);
- return wp_get_http( $headers['location'], $file_path, ++$red );
- }
+ $headers = wp_remote_retrieve_headers( $response );
+ $headers['response'] = $response['response']['code'];
- // make a note of the final location, so the caller can tell if we were redirected or not
- $headers['x-final-location'] = $url;
+ // WP_HTTP no longer follows redirects for HEAD requests.
+ if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) {
+ return wp_get_http( $headers['location'], $file_path, ++$red );
+ }
- // HEAD request only
- if ( !$file_path ) {
- fclose($fp);
+ if ( false == $file_path )
return $headers;
- }
- // GET request - fetch and write it to the supplied filename
- $content_length = $headers['content-length'];
- $got_bytes = 0;
+ // GET request - write it to the supplied filename
$out_fp = fopen($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 >= $content_length)
- break;
- }
+ if ( !$out_fp )
+ return $headers;
+ fwrite( $out_fp, $response['body']);
fclose($out_fp);
- fclose($fp);
+ clearstatcache();
+
return $headers;
}
-function wp_get_http_headers( $url, $red = 1 ) {
- return wp_get_http( $url, false, $red );
-}
+/**
+ * Retrieve HTTP Headers from URL.
+ *
+ * @since 1.5.1
+ *
+ * @param string $url
+ * @param bool $deprecated Not Used.
+ * @return bool|string False on failure, headers on success.
+ */
+function wp_get_http_headers( $url, $deprecated = false ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.7' );
+
+ $response = wp_remote_head( $url );
+
+ if ( is_wp_error( $response ) )
+ return false;
+ return wp_remote_retrieve_headers( $response );
+}
+/**
+ * Whether today is a new day.
+ *
+ * @since 0.71
+ * @uses $day Today
+ * @uses $previousday Previous day
+ *
+ * @return int 1 when new day, 0 if not a new day.
+ */
function is_new_day() {
- global $day, $previousday;
- if ( $day != $previousday )
+ global $currentday, $previousday;
+ if ( $currentday != $previousday )
return 1;
else
return 0;
}
-
+/**
+ * Build URL query based on an associative and, or indexed array.
+ *
+ * This is a convenient function for easily building url queries. It sets the
+ * separator to '&' and uses _http_build_query() function.
+ *
+ * @see _http_build_query() Used to build the query
+ * @link http://us2.php.net/manual/en/function.http-build-query.php more on what
+ * http_build_query() does.
+ *
+ * @since 2.3.0
+ *
+ * @param array $data URL-encode key/value pairs.
+ * @return string URL encoded string
+ */
function build_query( $data ) {
- return _http_build_query( $data, NULL, '&', '', false );
+ return _http_build_query( $data, null, '&', '', false );
}
-
-/*
-add_query_arg: Returns a modified querystring by 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.
-
-Parameters:
-add_query_arg(newkey, newvalue, oldquery_or_uri) or
-add_query_arg(associative_array, oldquery_or_uri)
-*/
+/**
+ * Retrieve a modified URL query string.
+ *
+ * You can rebuild the URL and append a new query variable to the URL query by
+ * using this function. You can also retrieve the full URL with query data.
+ *
+ * Adding a single key & value or an associative array. Setting a key value to
+ * emptystring removes the key. Omitting oldquery_or_uri uses the $_SERVER
+ * value.
+ *
+ * @since 1.5.0
+ *
+ * @param mixed $param1 Either newkey or an associative_array
+ * @param mixed $param2 Either newvalue or oldquery or uri
+ * @param mixed $param3 Optional. Old query or uri
+ * @return string New URL query string.
+ */
function add_query_arg() {
$ret = '';
if ( is_array( func_get_arg(0) ) ) {
$qs[func_get_arg( 0 )] = func_get_arg( 1 );
}
- foreach ( $qs as $k => $v ) {
+ foreach ( (array) $qs as $k => $v ) {
if ( $v === false )
unset( $qs[$k] );
}
return $ret;
}
-
-/*
-remove_query_arg: Returns a modified querystring by removing
-a single key or an array of keys.
-Omitting oldquery_or_uri uses the $_SERVER value.
-
-Parameters:
-remove_query_arg(removekey, [oldquery_or_uri]) or
-remove_query_arg(removekeyarray, [oldquery_or_uri])
-*/
-
-function remove_query_arg( $key, $query=FALSE ) {
+/**
+ * Removes an item or list from the query string.
+ *
+ * @since 1.5.0
+ *
+ * @param string|array $key Query key or keys to remove.
+ * @param bool $query When false uses the $_SERVER value.
+ * @return string New URL query string.
+ */
+function remove_query_arg( $key, $query=false ) {
if ( is_array( $key ) ) { // removing multiple keys
- foreach ( (array) $key as $k )
- $query = add_query_arg( $k, FALSE, $query );
+ foreach ( $key as $k )
+ $query = add_query_arg( $k, false, $query );
return $query;
}
- return add_query_arg( $key, FALSE, $query );
+ return add_query_arg( $key, false, $query );
}
-
+/**
+ * Walks the array while sanitizing the contents.
+ *
+ * @since 0.71
+ *
+ * @param array $array Array to used to walk while sanitizing contents.
+ * @return array Sanitized $array.
+ */
function add_magic_quotes( $array ) {
- global $wpdb;
-
- foreach ( $array as $k => $v ) {
+ foreach ( (array) $array as $k => $v ) {
if ( is_array( $v ) ) {
$array[$k] = add_magic_quotes( $v );
} else {
- $array[$k] = $wpdb->escape( $v );
+ $array[$k] = addslashes( $v );
}
}
return $array;
}
-function wp_remote_fopen( $uri ) {
- $timeout = 10;
+/**
+ * HTTP request for URI to retrieve content.
+ *
+ * @since 1.5.1
+ * @uses wp_remote_get()
+ *
+ * @param string $uri URI/URL of web page to retrieve.
+ * @return bool|string HTTP content. False on failure.
+ */
+function wp_remote_fopen( $uri ) {
$parsed_url = @parse_url( $uri );
if ( !$parsed_url || !is_array( $parsed_url ) )
return false;
- if ( !isset( $parsed_url['scheme'] ) || !in_array( $parsed_url['scheme'], array( 'http','https' ) ) )
- $uri = 'http://' . $uri;
+ $options = array();
+ $options['timeout'] = 10;
- if ( ini_get( 'allow_url_fopen' ) ) {
- $fp = @fopen( $uri, 'r' );
- if ( !$fp )
- return false;
+ $response = wp_remote_get( $uri, $options );
- //stream_set_timeout($fp, $timeout); // Requires php 4.3
- $linea = '';
- while ( $remote_read = fread( $fp, 4096 ) )
- $linea .= $remote_read;
- fclose( $fp );
- return $linea;
- } elseif ( function_exists( 'curl_init' ) ) {
- $handle = curl_init();
- 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 );
- return $buffer;
- } else {
+ if ( is_wp_error( $response ) )
return false;
- }
-}
+ return $response['body'];
+}
+/**
+ * Set up the WordPress query.
+ *
+ * @since 2.0.0
+ *
+ * @param string $query_vars Default WP_Query arguments.
+ */
function wp( $query_vars = '' ) {
global $wp, $wp_query, $wp_the_query;
$wp->main( $query_vars );
- if( !isset($wp_the_query) )
+ if ( !isset($wp_the_query) )
$wp_the_query = $wp_query;
}
-
+/**
+ * Retrieve the description for the HTTP status.
+ *
+ * @since 2.3.0
+ *
+ * @param int $code HTTP status code.
+ * @return string Empty string if not found, or description if found.
+ */
function get_status_header_desc( $code ) {
global $wp_header_to_desc;
$wp_header_to_desc = array(
100 => 'Continue',
101 => 'Switching Protocols',
+ 102 => 'Processing',
200 => 'OK',
201 => 'Created',
204 => 'No Content',
205 => 'Reset Content',
206 => 'Partial Content',
+ 207 => 'Multi-Status',
+ 226 => 'IM Used',
300 => 'Multiple Choices',
301 => 'Moved Permanently',
303 => 'See Other',
304 => 'Not Modified',
305 => 'Use Proxy',
+ 306 => 'Reserved',
307 => 'Temporary Redirect',
400 => 'Bad Request',
401 => 'Unauthorized',
+ 402 => 'Payment Required',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
415 => 'Unsupported Media Type',
416 => 'Requested Range Not Satisfiable',
417 => 'Expectation Failed',
+ 422 => 'Unprocessable Entity',
+ 423 => 'Locked',
+ 424 => 'Failed Dependency',
+ 426 => 'Upgrade Required',
500 => 'Internal Server Error',
501 => 'Not Implemented',
502 => 'Bad Gateway',
503 => 'Service Unavailable',
504 => 'Gateway Timeout',
- 505 => 'HTTP Version Not Supported'
+ 505 => 'HTTP Version Not Supported',
+ 506 => 'Variant Also Negotiates',
+ 507 => 'Insufficient Storage',
+ 510 => 'Not Extended'
);
}
return '';
}
-
+/**
+ * Set HTTP status header.
+ *
+ * @since 2.0.0
+ * @uses apply_filters() Calls 'status_header' on status header string, HTTP
+ * HTTP code, HTTP code description, and protocol string as separate
+ * parameters.
+ *
+ * @param int $header HTTP status code
+ * @return unknown
+ */
function status_header( $header ) {
$text = get_status_header_desc( $header );
if ( function_exists( 'apply_filters' ) )
$status_header = apply_filters( 'status_header', $status_header, $header, $text, $protocol );
- if ( version_compare( phpversion(), '4.3.0', '>=' ) )
- return @header( $status_header, true, $header );
- else
- return @header( $status_header );
+ return @header( $status_header, true, $header );
}
+/**
+ * Gets the header information to prevent caching.
+ *
+ * The several different headers cover the different ways cache prevention is handled
+ * by different browsers
+ *
+ * @since 2.8.0
+ *
+ * @uses apply_filters()
+ * @return array The associative array of header names and field values.
+ */
+function wp_get_nocache_headers() {
+ $headers = array(
+ 'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT',
+ 'Last-Modified' => gmdate( 'D, d M Y H:i:s' ) . ' GMT',
+ 'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
+ 'Pragma' => 'no-cache',
+ );
+
+ if ( function_exists('apply_filters') ) {
+ $headers = (array) apply_filters('nocache_headers', $headers);
+ }
+ return $headers;
+}
+/**
+ * Sets the headers to prevent caching for the different browsers.
+ *
+ * Different browsers support different nocache headers, so several headers must
+ * be sent so that all of them get the point that no caching should occur.
+ *
+ * @since 2.0.0
+ * @uses wp_get_nocache_headers()
+ */
function nocache_headers() {
- // 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' );
+ $headers = wp_get_nocache_headers();
+ foreach( $headers as $name => $field_value )
+ @header("{$name}: {$field_value}");
}
-
+/**
+ * Set the headers for caching for 10 days with JavaScript content type.
+ *
+ * @since 2.1.0
+ */
function cache_javascript_headers() {
$expiresOffset = 864000; // 10 days
header( "Content-Type: text/javascript; charset=" . get_bloginfo( 'charset' ) );
header( "Expires: " . gmdate( "D, d M Y H:i:s", time() + $expiresOffset ) . " GMT" );
}
-
+/**
+ * Retrieve the number of database queries during the WordPress execution.
+ *
+ * @since 2.0.0
+ *
+ * @return int Number of database queries
+ */
function get_num_queries() {
global $wpdb;
return $wpdb->num_queries;
}
-
+/**
+ * Whether input is yes or no. Must be 'y' to be true.
+ *
+ * @since 1.0.0
+ *
+ * @param string $yn Character string containing either 'y' or 'n'
+ * @return bool True if yes, false on anything else
+ */
function bool_from_yn( $yn ) {
return ( strtolower( $yn ) == 'y' );
}
-
+/**
+ * Loads the feed template from the use of an action hook.
+ *
+ * If the feed action does not have a hook, then the function will die with a
+ * message telling the visitor that the feed is not valid.
+ *
+ * It is better to only have one hook for each feed.
+ *
+ * @since 2.1.0
+ * @uses $wp_query Used to tell if the use a comment feed.
+ * @uses do_action() Calls 'do_feed_$feed' hook, if a hook exists for the feed.
+ */
function do_feed() {
global $wp_query;
$hook = 'do_feed_' . $feed;
if ( !has_action($hook) ) {
- $message = sprintf( __( 'ERROR: %s is not a valid feed template' ), wp_specialchars($feed));
- wp_die($message);
+ $message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed));
+ wp_die( $message, '', array( 'response' => 404 ) );
}
do_action( $hook, $wp_query->is_comment_feed );
}
-
+/**
+ * Load the RDF RSS 0.91 Feed template.
+ *
+ * @since 2.1.0
+ */
function do_feed_rdf() {
load_template( ABSPATH . WPINC . '/feed-rdf.php' );
}
-
+/**
+ * Load the RSS 1.0 Feed Template
+ *
+ * @since 2.1.0
+ */
function do_feed_rss() {
load_template( ABSPATH . WPINC . '/feed-rss.php' );
}
-
+/**
+ * Load either the RSS2 comment feed or the RSS2 posts feed.
+ *
+ * @since 2.1.0
+ *
+ * @param bool $for_comments True for the comment feed, false for normal feed.
+ */
function do_feed_rss2( $for_comments ) {
if ( $for_comments )
load_template( ABSPATH . WPINC . '/feed-rss2-comments.php' );
load_template( ABSPATH . WPINC . '/feed-rss2.php' );
}
-
+/**
+ * Load either Atom comment feed or Atom posts feed.
+ *
+ * @since 2.1.0
+ *
+ * @param bool $for_comments True for the comment feed, false for normal feed.
+ */
function do_feed_atom( $for_comments ) {
if ($for_comments)
load_template( ABSPATH . WPINC . '/feed-atom-comments.php');
load_template( ABSPATH . WPINC . '/feed-atom.php' );
}
+/**
+ * Display the robot.txt file content.
+ *
+ * The echo content should be with usage of the permalinks or for creating the
+ * robot.txt file.
+ *
+ * @since 2.1.0
+ * @uses do_action() Calls 'do_robotstxt' hook for displaying robot.txt rules.
+ */
function do_robots() {
header( 'Content-Type: text/plain; charset=utf-8' );
do_action( 'do_robotstxt' );
- if ( '0' == get_option( 'blog_public' ) ) {
- echo "User-agent: *\n";
- echo "Disallow: /\n";
+ $output = '';
+ $public = get_option( 'blog_public' );
+ if ( '0' == $public ) {
+ $output .= "User-agent: *\n";
+ $output .= "Disallow: /\n";
} else {
- echo "User-agent: *\n";
- echo "Disallow:\n";
+ $output .= "User-agent: *\n";
+ $output .= "Disallow:\n";
}
-}
+ echo apply_filters('robots_txt', $output, $public);
+}
+/**
+ * Test whether blog is already installed.
+ *
+ * The cache will be checked first. If you have a cache plugin, which saves the
+ * cache values, then this will work. If you use the default WordPress cache,
+ * and the database goes away, then you might have problems.
+ *
+ * Checks for the option siteurl for whether WordPress is installed.
+ *
+ * @since 2.1.0
+ * @uses $wpdb
+ *
+ * @return bool Whether blog is already installed.
+ */
function is_blog_installed() {
global $wpdb;
- // Check cache first. If options table goes away and we have true cached, oh well.
- if ( wp_cache_get('is_blog_installed') )
+ // Check cache first. If options table goes away and we have true cached, oh well.
+ if ( wp_cache_get( 'is_blog_installed' ) )
return true;
$suppress = $wpdb->suppress_errors();
- $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" );
- $wpdb->suppress_errors($suppress);
+ if ( ! defined( 'WP_INSTALLING' ) ) {
+ $alloptions = wp_load_alloptions();
+ }
+ // If siteurl is not set to autoload, check it specifically
+ if ( !isset( $alloptions['siteurl'] ) )
+ $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" );
+ else
+ $installed = $alloptions['siteurl'];
+ $wpdb->suppress_errors( $suppress );
- $installed = !empty( $installed ) ? true : false;
- wp_cache_set('is_blog_installed', $installed);
+ $installed = !empty( $installed );
+ wp_cache_set( 'is_blog_installed', $installed );
- return $installed;
-}
+ if ( $installed )
+ return true;
+
+ $suppress = $wpdb->suppress_errors();
+ $tables = $wpdb->get_col('SHOW TABLES');
+ $wpdb->suppress_errors( $suppress );
+
+ $wp_tables = $wpdb->tables();
+ // Loop over the WP tables. If none exist, then scratch install is allowed.
+ // If one or more exist, suggest table repair since we got here because the options
+ // table could not be accessed.
+ foreach ( $wp_tables as $table ) {
+ // If one of the WP tables exist, then we are in an insane state.
+ if ( in_array( $table, $tables ) ) {
+ // The existence of custom user tables shouldn't suggest an insane state or prevent a clean install.
+ if ( defined( 'CUSTOM_USER_TABLE' ) && CUSTOM_USER_TABLE == $table )
+ continue;
+ if ( defined( 'CUSTOM_USER_META_TABLE' ) && CUSTOM_USER_META_TABLE == $table )
+ continue;
+
+ // If visiting repair.php, return true and let it take over.
+ if ( defined('WP_REPAIRING') )
+ return true;
+ // Die with a DB error.
+ $wpdb->error = sprintf( /*WP_I18N_NO_TABLES*/'One or more database tables are unavailable. The database may need to be <a href="%s">repaired</a>.'/*/WP_I18N_NO_TABLES*/, 'maint/repair.php?referrer=is_blog_installed' );
+ dead_db();
+ }
+ }
+ wp_cache_set( 'is_blog_installed', false );
+ return false;
+}
+
+/**
+ * Retrieve URL with nonce added to URL query.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param string $actionurl URL to add nonce action
+ * @param string $action Optional. Nonce action name
+ * @return string URL with nonce action added.
+ */
function wp_nonce_url( $actionurl, $action = -1 ) {
$actionurl = str_replace( '&', '&', $actionurl );
- return wp_specialchars( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) );
+ return esc_html( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) );
}
-
+/**
+ * Retrieve or display nonce hidden field for forms.
+ *
+ * The nonce field is used to validate that the contents of the form came from
+ * the location on the current site and not somewhere else. The nonce does not
+ * offer absolute protection, but should protect against most cases. It is very
+ * important to use nonce field in forms.
+ *
+ * If you set $echo to true and set $referer to true, then you will need to
+ * retrieve the {@link wp_referer_field() wp referer field}. If you have the
+ * $referer set to true and are echoing the nonce field, it will also echo the
+ * referer field.
+ *
+ * The $action and $name are optional, but if you want to have better security,
+ * it is strongly suggested to set those two parameters. It is easier to just
+ * call the function without any parameters, because validation of the nonce
+ * doesn't require any parameters, but since crackers know what the default is
+ * it won't be difficult for them to find a way around your nonce and cause
+ * damage.
+ *
+ * The input name will be whatever $name value you gave. The input value will be
+ * the nonce creation value.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param string $action Optional. Action name.
+ * @param string $name Optional. Nonce name.
+ * @param bool $referer Optional, default true. Whether to set the referer field for validation.
+ * @param bool $echo Optional, default true. Whether to display or return hidden form field.
+ * @return string Nonce field.
+ */
function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) {
- $name = attribute_escape( $name );
+ $name = esc_attr( $name );
$nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce( $action ) . '" />';
if ( $echo )
echo $nonce_field;
-
+
if ( $referer )
- wp_referer_field( $echo, 'previous' );
-
+ wp_referer_field( $echo );
+
return $nonce_field;
}
-
-function wp_referer_field( $echo = true) {
- $ref = attribute_escape( $_SERVER['REQUEST_URI'] );
+/**
+ * Retrieve or display referer hidden field for forms.
+ *
+ * The referer link is the current Request URI from the server super global. The
+ * input name is '_wp_http_referer', in case you wanted to check manually.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param bool $echo Whether to echo or return the referer field.
+ * @return string Referer field.
+ */
+function wp_referer_field( $echo = true ) {
+ $ref = esc_attr( $_SERVER['REQUEST_URI'] );
$referer_field = '<input type="hidden" name="_wp_http_referer" value="'. $ref . '" />';
if ( $echo )
return $referer_field;
}
+/**
+ * Retrieve or display original referer hidden field for forms.
+ *
+ * The input name is '_wp_original_http_referer' and will be either the same
+ * value of {@link wp_referer_field()}, if that was posted already or it will
+ * be the current page, if it doesn't exist.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param bool $echo Whether to echo the original http referer
+ * @param string $jump_back_to Optional, default is 'current'. Can be 'previous' or page you want to jump back to.
+ * @return string Original referer field.
+ */
function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) {
$jump_back_to = ( 'previous' == $jump_back_to ) ? wp_get_referer() : $_SERVER['REQUEST_URI'];
$ref = ( wp_get_original_referer() ) ? wp_get_original_referer() : $jump_back_to;
- $orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . attribute_escape( stripslashes( $ref ) ) . '" />';
+ $orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr( stripslashes( $ref ) ) . '" />';
if ( $echo )
echo $orig_referer_field;
return $orig_referer_field;
}
-
+/**
+ * Retrieve referer from '_wp_http_referer', HTTP referer, or current page respectively.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @return string|bool False on failure. Referer URL on success.
+ */
function wp_get_referer() {
+ $ref = '';
if ( ! empty( $_REQUEST['_wp_http_referer'] ) )
$ref = $_REQUEST['_wp_http_referer'];
else if ( ! empty( $_SERVER['HTTP_REFERER'] ) )
return false;
}
-
+/**
+ * Retrieve original referer that was posted, if it exists.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @return string|bool False if no original referer or original referer if set.
+ */
function wp_get_original_referer() {
if ( !empty( $_REQUEST['_wp_original_http_referer'] ) )
return $_REQUEST['_wp_original_http_referer'];
return false;
}
-
+/**
+ * Recursive directory creation based on full path.
+ *
+ * Will attempt to set permissions on folders.
+ *
+ * @since 2.0.1
+ *
+ * @param string $target Full path to attempt to create.
+ * @return bool Whether the path was created. True if path already exists.
+ */
function wp_mkdir_p( $target ) {
// from php.net/mkdir user contributed notes
$target = str_replace( '//', '/', $target );
+
+ // safe mode fails with a trailing slash under certain PHP versions.
+ $target = rtrim($target, '/'); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency.
+ if ( empty($target) )
+ $target = '/';
+
if ( file_exists( $target ) )
return @is_dir( $target );
}
// If the above failed, attempt to create the parent node, then try again.
- if ( wp_mkdir_p( dirname( $target ) ) )
+ if ( ( $target != '/' ) && ( wp_mkdir_p( dirname( $target ) ) ) )
return wp_mkdir_p( $target );
return false;
}
-// Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows')
+/**
+ * Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows').
+ *
+ * @since 2.5.0
+ *
+ * @param string $path File path
+ * @return bool True if path is absolute, false is not absolute.
+ */
function path_is_absolute( $path ) {
// this is definitive if true but fails if $path does not exist or contains a symbolic link
if ( realpath($path) == $path )
return true;
- if ( strlen($path) == 0 || $path{0} == '.' )
+ if ( strlen($path) == 0 || $path[0] == '.' )
return false;
// windows allows absolute paths like this
return (bool) preg_match('#^[/\\\\]#', $path);
}
-// Join two filesystem paths together (e.g. 'give me $path relative to $base')
+/**
+ * Join two filesystem paths together (e.g. 'give me $path relative to $base').
+ *
+ * If the $path is absolute, then it the full path is returned.
+ *
+ * @since 2.5.0
+ *
+ * @param string $base
+ * @param string $path
+ * @return string The path with the base or absolute path.
+ */
function path_join( $base, $path ) {
if ( path_is_absolute($path) )
return $path;
return rtrim($base, '/') . '/' . ltrim($path, '/');
}
-// Returns an array containing the current upload directory's path and url, or an error message.
-function wp_upload_dir( $time = NULL ) {
+/**
+ * Get an array containing the current upload directory's path and url.
+ *
+ * Checks the 'upload_path' option, which should be from the web root folder,
+ * and if it isn't empty it will be used. If it is empty, then the path will be
+ * 'WP_CONTENT_DIR/uploads'. If the 'UPLOADS' constant is defined, then it will
+ * override the 'upload_path' option and 'WP_CONTENT_DIR/uploads' path.
+ *
+ * The upload URL path is set either by the 'upload_url_path' option or by using
+ * the 'WP_CONTENT_URL' constant and appending '/uploads' to the path.
+ *
+ * If the 'uploads_use_yearmonth_folders' is set to true (checkbox if checked in
+ * the administration settings panel), then the time will be used. The format
+ * will be year first and then month.
+ *
+ * If the path couldn't be created, then an error will be returned with the key
+ * 'error' containing the error message. The error suggests that the parent
+ * directory is not writable by the server.
+ *
+ * On success, the returned array will have many indices:
+ * 'path' - base directory and sub directory or full path to upload directory.
+ * 'url' - base url and sub directory or absolute URL to upload directory.
+ * 'subdir' - sub directory if uploads use year/month folders option is on.
+ * 'basedir' - path without subdir.
+ * 'baseurl' - URL path without subdir.
+ * 'error' - set to false.
+ *
+ * @since 2.0.0
+ * @uses apply_filters() Calls 'upload_dir' on returned array.
+ *
+ * @param string $time Optional. Time formatted in 'yyyy/mm'.
+ * @return array See above for description.
+ */
+function wp_upload_dir( $time = null ) {
+ global $switched;
$siteurl = get_option( 'siteurl' );
$upload_path = get_option( 'upload_path' );
- if ( trim($upload_path) === '' )
- $upload_path = 'wp-content/uploads';
- $dir = $upload_path;
-
- // $dir is absolute, $path is (maybe) relative to ABSPATH
- $dir = path_join( ABSPATH, $upload_path );
- $path = str_replace( ABSPATH, '', trim( $upload_path ) );
+ $upload_path = trim($upload_path);
+ $main_override = is_multisite() && defined( 'MULTISITE' ) && is_main_site();
+ if ( empty($upload_path) ) {
+ $dir = WP_CONTENT_DIR . '/uploads';
+ } else {
+ $dir = $upload_path;
+ if ( 'wp-content/uploads' == $upload_path ) {
+ $dir = WP_CONTENT_DIR . '/uploads';
+ } elseif ( 0 !== strpos($dir, ABSPATH) ) {
+ // $dir is absolute, $upload_path is (maybe) relative to ABSPATH
+ $dir = path_join( ABSPATH, $dir );
+ }
+ }
- if ( !$url = get_option( 'upload_url_path' ) )
- $url = trailingslashit( $siteurl ) . $path;
+ if ( !$url = get_option( 'upload_url_path' ) ) {
+ if ( empty($upload_path) || ( 'wp-content/uploads' == $upload_path ) || ( $upload_path == $dir ) )
+ $url = WP_CONTENT_URL . '/uploads';
+ else
+ $url = trailingslashit( $siteurl ) . $upload_path;
+ }
- if ( defined('UPLOADS') ) {
+ if ( defined('UPLOADS') && !$main_override && ( !isset( $switched ) || $switched === false ) ) {
$dir = ABSPATH . UPLOADS;
$url = trailingslashit( $siteurl ) . UPLOADS;
}
+ if ( is_multisite() && !$main_override && ( !isset( $switched ) || $switched === false ) ) {
+ if ( defined( 'BLOGUPLOADDIR' ) )
+ $dir = untrailingslashit(BLOGUPLOADDIR);
+ $url = str_replace( UPLOADS, 'files', $url );
+ }
+
+ $bdir = $dir;
+ $burl = $url;
+
$subdir = '';
if ( get_option( 'uploads_use_yearmonth_folders' ) ) {
// Generate the yearly and monthly dirs
$dir .= $subdir;
$url .= $subdir;
+ $uploads = apply_filters( 'upload_dir', array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'basedir' => $bdir, 'baseurl' => $burl, 'error' => false ) );
+
// Make sure we have an uploads dir
- if ( ! wp_mkdir_p( $dir ) ) {
- $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $dir );
+ if ( ! wp_mkdir_p( $uploads['path'] ) ) {
+ $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $uploads['path'] );
return array( 'error' => $message );
}
- $uploads = array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'error' => false );
- return apply_filters( 'upload_dir', $uploads );
+ return $uploads;
}
-// return a filename that is sanitized and unique for the given directory
-function wp_unique_filename( $dir, $filename, $unique_filename_callback = NULL ) {
- $filename = strtolower( $filename );
+/**
+ * Get a filename that is sanitized and unique for the given directory.
+ *
+ * If the filename is not unique, then a number will be added to the filename
+ * before the extension, and will continue adding numbers until the filename is
+ * unique.
+ *
+ * The callback is passed three parameters, the first one is the directory, the
+ * second is the filename, and the third is the extension.
+ *
+ * @since 2.5.0
+ *
+ * @param string $dir
+ * @param string $filename
+ * @param mixed $unique_filename_callback Callback.
+ * @return string New filename, if given wasn't unique.
+ */
+function wp_unique_filename( $dir, $filename, $unique_filename_callback = null ) {
+ // sanitize the file name before we begin processing
+ $filename = sanitize_file_name($filename);
+
// separate the filename into a name and extension
$info = pathinfo($filename);
- $ext = $info['extension'];
- $name = basename($filename, ".{$ext}");
-
+ $ext = !empty($info['extension']) ? '.' . $info['extension'] : '';
+ $name = basename($filename, $ext);
+
// edge case: if file is named '.ext', treat as an empty name
- if( $name === ".$ext" )
+ if ( $name === $ext )
$name = '';
- // Increment the file number until we have a unique file to save in $dir. Use $override['unique_filename_callback'] if supplied.
- if ( $unique_filename_callback && function_exists( $unique_filename_callback ) ) {
- $filename = $unique_filename_callback( $dir, $name );
+ // Increment the file number until we have a unique file to save in $dir. Use callback if supplied.
+ if ( $unique_filename_callback && is_callable( $unique_filename_callback ) ) {
+ $filename = call_user_func( $unique_filename_callback, $dir, $name, $ext );
} else {
$number = '';
- if ( empty( $ext ) )
- $ext = '';
- else
- $ext = strtolower( ".$ext" );
-
- $filename = str_replace( $ext, '', $filename );
- // Strip % so the server doesn't try to decode entities.
- $filename = str_replace('%', '', sanitize_title_with_dashes( $filename ) ) . $ext;
+ // change '.ext' to lower case
+ if ( $ext && strtolower($ext) != $ext ) {
+ $ext2 = strtolower($ext);
+ $filename2 = preg_replace( '|' . preg_quote($ext) . '$|', $ext2, $filename );
+
+ // check for both lower and upper case extension or image sub-sizes may be overwritten
+ while ( file_exists($dir . "/$filename") || file_exists($dir . "/$filename2") ) {
+ $new_number = $number + 1;
+ $filename = str_replace( "$number$ext", "$new_number$ext", $filename );
+ $filename2 = str_replace( "$number$ext2", "$new_number$ext2", $filename2 );
+ $number = $new_number;
+ }
+ return $filename2;
+ }
while ( file_exists( $dir . "/$filename" ) ) {
if ( '' == "$number$ext" )
return $filename;
}
-function wp_upload_bits( $name, $deprecated, $bits, $time = NULL ) {
+/**
+ * Create a file in the upload folder with given content.
+ *
+ * If there is an error, then the key 'error' will exist with the error message.
+ * If success, then the key 'file' will have the unique file path, the 'url' key
+ * will have the link to the new file. and the 'error' key will be set to false.
+ *
+ * This function will not move an uploaded file to the upload folder. It will
+ * create a new file with the content in $bits parameter. If you move the upload
+ * file, read the content of the uploaded file, and then you can give the
+ * filename and content to this function, which will add it to the upload
+ * folder.
+ *
+ * The permissions will be set on the new file automatically by this function.
+ *
+ * @since 2.0.0
+ *
+ * @param string $name
+ * @param null $deprecated Never used. Set to null.
+ * @param mixed $bits File content
+ * @param string $time Optional. Time formatted in 'yyyy/mm'.
+ * @return array
+ */
+function wp_upload_bits( $name, $deprecated, $bits, $time = null ) {
+ if ( !empty( $deprecated ) )
+ _deprecated_argument( __FUNCTION__, '2.0' );
+
if ( empty( $name ) )
- return array( 'error' => __( "Empty filename" ) );
+ return array( 'error' => __( 'Empty filename' ) );
$wp_filetype = wp_check_filetype( $name );
if ( !$wp_filetype['ext'] )
- return array( 'error' => __( "Invalid file type" ) );
+ return array( 'error' => __( 'Invalid file type' ) );
$upload = wp_upload_dir( $time );
if ( $upload['error'] !== false )
return $upload;
+ $upload_bits_error = apply_filters( 'wp_upload_bits', array( 'name' => $name, 'bits' => $bits, 'time' => $time ) );
+ if ( !is_array( $upload_bits_error ) ) {
+ $upload[ 'error' ] = $upload_bits_error;
+ return $upload;
+ }
+
$filename = wp_unique_filename( $upload['path'], $name );
$new_file = $upload['path'] . "/$filename";
@fwrite( $ifp, $bits );
fclose( $ifp );
+ clearstatcache();
+
// Set correct file permissions
$stat = @ stat( dirname( $new_file ) );
$perms = $stat['mode'] & 0007777;
$perms = $perms & 0000666;
@ chmod( $new_file, $perms );
+ clearstatcache();
// Compute the URL
$url = $upload['url'] . "/$filename";
return array( 'file' => $new_file, 'url' => $url, 'error' => false );
}
+/**
+ * Retrieve the file type based on the extension name.
+ *
+ * @package WordPress
+ * @since 2.5.0
+ * @uses apply_filters() Calls 'ext2type' hook on default supported types.
+ *
+ * @param string $ext The extension to search.
+ * @return string|null The file type, example: audio, video, document, spreadsheet, etc. Null if not found.
+ */
function wp_ext2type( $ext ) {
- $ext2type = apply_filters('ext2type', array(
- 'audio' => array('aac','ac3','aif','aiff','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'),
- 'code' => array('css','html','php','js'),
+ $ext2type = apply_filters( 'ext2type', array(
+ 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ),
+ 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ),
+ 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ),
+ 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsb', 'xlsm' ),
+ 'interactive' => array( 'key', 'ppt', 'pptx', 'pptm', 'odp', 'swf' ),
+ 'text' => array( 'asc', 'csv', 'tsv', 'txt' ),
+ 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip' ),
+ 'code' => array( 'css', 'htm', 'html', 'php', 'js' ),
));
foreach ( $ext2type as $type => $exts )
- if ( in_array($ext, $exts) )
+ if ( in_array( $ext, $exts ) )
return $type;
}
+/**
+ * Retrieve the file type from the file name.
+ *
+ * You can optionally define the mime array, if needed.
+ *
+ * @since 2.0.4
+ *
+ * @param string $filename File name or path.
+ * @param array $mimes Optional. Key is the file extension with value as the mime type.
+ * @return array Values with extension first and mime type.
+ */
function wp_check_filetype( $filename, $mimes = null ) {
- // Accepted MIME types are set here as PCRE unless provided.
- $mimes = ( is_array( $mimes ) ) ? $mimes : apply_filters( 'upload_mimes', array(
+ if ( empty($mimes) )
+ $mimes = get_allowed_mime_types();
+ $type = false;
+ $ext = false;
+
+ foreach ( $mimes as $ext_preg => $mime_match ) {
+ $ext_preg = '!\.(' . $ext_preg . ')$!i';
+ if ( preg_match( $ext_preg, $filename, $ext_matches ) ) {
+ $type = $mime_match;
+ $ext = $ext_matches[1];
+ break;
+ }
+ }
+
+ return compact( 'ext', 'type' );
+}
+
+/**
+ * Attempt to determine the real file type of a file.
+ * If unable to, the file name extension will be used to determine type.
+ *
+ * If it's determined that the extension does not match the file's real type,
+ * then the "proper_filename" value will be set with a proper filename and extension.
+ *
+ * Currently this function only supports validating images known to getimagesize().
+ *
+ * @since 3.0.0
+ *
+ * @param string $file Full path to the image.
+ * @param string $filename The filename of the image (may differ from $file due to $file being in a tmp directory)
+ * @param array $mimes Optional. Key is the file extension with value as the mime type.
+ * @return array Values for the extension, MIME, and either a corrected filename or false if original $filename is valid
+ */
+function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) {
+
+ $proper_filename = false;
+
+ // Do basic extension validation and MIME mapping
+ $wp_filetype = wp_check_filetype( $filename, $mimes );
+ extract( $wp_filetype );
+
+ // We can't do any further validation without a file to work with
+ if ( ! file_exists( $file ) )
+ return compact( 'ext', 'type', 'proper_filename' );
+
+ // We're able to validate images using GD
+ if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) {
+
+ // Attempt to figure out what type of image it actually is
+ $imgstats = @getimagesize( $file );
+
+ // If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME
+ if ( !empty($imgstats['mime']) && $imgstats['mime'] != $type ) {
+ // This is a simplified array of MIMEs that getimagesize() can detect and their extensions
+ // You shouldn't need to use this filter, but it's here just in case
+ $mime_to_ext = apply_filters( 'getimagesize_mimes_to_exts', array(
+ 'image/jpeg' => 'jpg',
+ 'image/png' => 'png',
+ 'image/gif' => 'gif',
+ 'image/bmp' => 'bmp',
+ 'image/tiff' => 'tif',
+ ) );
+
+ // Replace whatever is after the last period in the filename with the correct extension
+ if ( ! empty( $mime_to_ext[ $imgstats['mime'] ] ) ) {
+ $filename_parts = explode( '.', $filename );
+ array_pop( $filename_parts );
+ $filename_parts[] = $mime_to_ext[ $imgstats['mime'] ];
+ $new_filename = implode( '.', $filename_parts );
+
+ if ( $new_filename != $filename )
+ $proper_filename = $new_filename; // Mark that it changed
+
+ // Redefine the extension / MIME
+ $wp_filetype = wp_check_filetype( $new_filename, $mimes );
+ extract( $wp_filetype );
+ }
+ }
+ }
+
+ // Let plugins try and validate other types of files
+ // Should return an array in the style of array( 'ext' => $ext, 'type' => $type, 'proper_filename' => $proper_filename )
+ return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes );
+}
+
+/**
+ * Retrieve list of allowed mime types and file extensions.
+ *
+ * @since 2.8.6
+ *
+ * @return array Array of mime types keyed by the file extension regex corresponding to those types.
+ */
+function get_allowed_mime_types() {
+ static $mimes = false;
+
+ if ( !$mimes ) {
+ // Accepted MIME types are set here as PCRE unless provided.
+ $mimes = apply_filters( 'upload_mimes', array(
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'ico' => 'image/x-icon',
'asf|asx|wax|wmv|wmx' => 'video/asf',
'avi' => 'video/avi',
+ 'divx' => 'video/divx',
+ 'flv' => 'video/x-flv',
'mov|qt' => 'video/quicktime',
- 'mpeg|mpg|mpe|mp4' => 'video/mpeg',
- 'txt|c|cc|h' => 'text/plain',
+ 'mpeg|mpg|mpe' => 'video/mpeg',
+ 'txt|asc|c|cc|h' => 'text/plain',
+ 'csv' => 'text/csv',
+ 'tsv' => 'text/tab-separated-values',
'rtx' => 'text/richtext',
'css' => 'text/css',
'htm|html' => 'text/html',
- 'mp3|m4a' => 'audio/mpeg',
+ 'mp3|m4a|m4b' => 'audio/mpeg',
+ 'mp4|m4v' => 'video/mp4',
'ra|ram' => 'audio/x-realaudio',
'wav' => 'audio/wav',
- 'ogg' => 'audio/ogg',
+ 'ogg|oga' => 'audio/ogg',
+ 'ogv' => 'video/ogg',
'mid|midi' => 'audio/midi',
'wma' => 'audio/wma',
+ 'mka' => 'audio/x-matroska',
+ 'mkv' => 'video/x-matroska',
'rtf' => 'application/rtf',
'js' => 'application/javascript',
'pdf' => 'application/pdf',
- 'doc' => 'application/msword',
- 'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
+ 'doc|docx' => 'application/msword',
+ 'pot|pps|ppt|pptx|ppam|pptm|sldm|ppsm|potm' => 'application/vnd.ms-powerpoint',
'wri' => 'application/vnd.ms-write',
- 'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
+ 'xla|xls|xlsx|xlt|xlw|xlam|xlsb|xlsm|xltm' => 'application/vnd.ms-excel',
'mdb' => 'application/vnd.ms-access',
'mpp' => 'application/vnd.ms-project',
+ 'docm|dotm' => 'application/vnd.ms-word',
+ 'pptx|sldx|ppsx|potx' => 'application/vnd.openxmlformats-officedocument.presentationml',
+ 'xlsx|xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml',
+ 'docx|dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml',
+ 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote',
'swf' => 'application/x-shockwave-flash',
'class' => 'application/java',
'tar' => 'application/x-tar',
'odc' => 'application/vnd.oasis.opendocument.chart',
'odb' => 'application/vnd.oasis.opendocument.database',
'odf' => 'application/vnd.oasis.opendocument.formula',
- )
- );
+ // wordperfect formats
+ 'wp|wpd' => 'application/wordperfect',
+ ) );
+ }
- $type = false;
- $ext = false;
-
- foreach ( $mimes as $ext_preg => $mime_match ) {
- $ext_preg = '!\.(' . $ext_preg . ')$!i';
- if ( preg_match( $ext_preg, $filename, $ext_matches ) ) {
- $type = $mime_match;
- $ext = $ext_matches[1];
- break;
- }
- }
-
- return compact( 'ext', 'type' );
-}
+ return $mimes;
+}
+/**
+ * Retrieve nonce action "Are you sure" message.
+ *
+ * The action is split by verb and noun. The action format is as follows:
+ * verb-action_extra. The verb is before the first dash and has the format of
+ * letters and no spaces and numbers. The noun is after the dash and before the
+ * underscore, if an underscore exists. The noun is also only letters.
+ *
+ * The filter will be called for any action, which is not defined by WordPress.
+ * You may use the filter for your plugin to explain nonce actions to the user,
+ * when they get the "Are you sure?" message. The filter is in the format of
+ * 'explain_nonce_$verb-$noun' with the $verb replaced by the found verb and the
+ * $noun replaced by the found noun. The two parameters that are given to the
+ * hook are the localized "Are you sure you want to do this?" message with the
+ * extra text (the text after the underscore).
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param string $action Nonce action.
+ * @return string Are you sure message.
+ */
function wp_explain_nonce( $action ) {
if ( $action !== -1 && preg_match( '/([a-z]+)-([a-z]+)(_(.+))?/', $action, $matches ) ) {
$verb = $matches[1];
$noun = $matches[2];
$trans = array();
- $trans['update']['attachment'] = array( __( 'Your attempt to edit this attachment: "%s" has failed.' ), 'get_the_title' );
+ $trans['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']['category'] = array( __( 'Your attempt to delete this category: “%s” has failed.' ), 'get_cat_name' );
+ $trans['update']['category'] = array( __( 'Your attempt to edit this category: “%s” has failed.' ), 'get_cat_name' );
- $trans['delete']['comment'] = array( __( 'Your attempt to delete this comment: "%s" has failed.' ), 'use_id' );
- $trans['unapprove']['comment'] = array( __( 'Your attempt to unapprove this comment: "%s" has failed.' ), 'use_id' );
- $trans['approve']['comment'] = array( __( 'Your attempt to approve this comment: "%s" has failed.' ), 'use_id' );
- $trans['update']['comment'] = array( __( 'Your attempt to edit this comment: "%s" has failed.' ), 'use_id' );
+ $trans['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['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['delete']['page'] = array( __( 'Your attempt to delete this page: “%s” has failed.' ), 'get_the_title' );
+ $trans['update']['page'] = array( __( 'Your attempt to edit this page: “%s” has failed.' ), 'get_the_title' );
- $trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: "%s" has failed.' ), 'use_id' );
- $trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: "%s" has failed.' ), 'use_id' );
- $trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: "%s" has failed.' ), 'use_id' );
- $trans['upgrade']['plugin'] = array( __( 'Your attempt to upgrade this plugin: "%s" has failed.' ), 'use_id' );
+ $trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: “%s” has failed.' ), 'use_id' );
+ $trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: “%s” has failed.' ), 'use_id' );
+ $trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: “%s” has failed.' ), 'use_id' );
+ $trans['upgrade']['plugin'] = array( __( 'Your attempt to update this plugin: “%s” has failed.' ), 'use_id' );
$trans['add']['post'] = array( __( 'Your attempt to add this post has failed.' ), false );
- $trans['delete']['post'] = array( __( 'Your attempt to delete this post: "%s" has failed.' ), 'get_the_title' );
- $trans['update']['post'] = array( __( 'Your attempt to edit this post: "%s" has failed.' ), 'get_the_title' );
+ $trans['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']['user'] = array( __( 'Your attempt to edit this user: “%s” has failed.' ), 'get_the_author_meta', 'display_name' );
+ $trans['update']['profile'] = array( __( 'Your attempt to modify the profile for: “%s” has failed.' ), 'get_the_author_meta', 'display_name' );
$trans['update']['options'] = array( __( 'Your attempt to edit your settings has failed.' ), false );
$trans['update']['permalink'] = array( __( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' );
- $trans['edit']['file'] = array( __( 'Your attempt to edit this file: "%s" has failed.' ), 'use_id' );
- $trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: "%s" has failed.' ), 'use_id' );
- $trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: "%s" has failed.' ), 'use_id' );
+ $trans['edit']['file'] = array( __( 'Your attempt to edit this file: “%s” has failed.' ), 'use_id' );
+ $trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: “%s” has failed.' ), 'use_id' );
+ $trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: “%s” has failed.' ), 'use_id' );
+
+ $trans['log']['out'] = array( sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'sitename' ) ), false );
if ( isset( $trans[$verb][$noun] ) ) {
if ( !empty( $trans[$verb][$noun][1] ) ) {
$lookup = $trans[$verb][$noun][1];
+ if ( isset($trans[$verb][$noun][2]) )
+ $lookup_value = $trans[$verb][$noun][2];
$object = $matches[4];
- if ( 'use_id' != $lookup )
- $object = call_user_func( $lookup, $object );
- return sprintf( $trans[$verb][$noun][0], wp_specialchars($object) );
+ if ( 'use_id' != $lookup ) {
+ if ( isset( $lookup_value ) )
+ $object = call_user_func( $lookup, $lookup_value, $object );
+ else
+ $object = call_user_func( $lookup, $object );
+ }
+ return sprintf( $trans[$verb][$noun][0], esc_html($object) );
} else {
return $trans[$verb][$noun][0];
}
}
- }
- return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), $matches[4] );
+ return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), isset($matches[4]) ? $matches[4] : '' );
+ } else {
+ return apply_filters( 'explain_nonce_' . $action, __( 'Are you sure you want to do this?' ) );
+ }
}
-
+/**
+ * Display "Are You Sure" message to confirm the action being taken.
+ *
+ * If the action has the nonce explain message, then it will be displayed along
+ * with the "Are you sure?" message.
+ *
+ * @package WordPress
+ * @subpackage Security
+ * @since 2.0.4
+ *
+ * @param string $action The nonce action.
+ */
function wp_nonce_ays( $action ) {
$title = __( 'WordPress Failure Notice' );
- $html = wp_specialchars( wp_explain_nonce( $action ) ) . '</p>';
- if ( wp_get_referer() )
- $html .= "<p><a href='" . remove_query_arg( 'updated', clean_url( wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>";
- wp_die( $html, $title);
+ $html = esc_html( wp_explain_nonce( $action ) );
+ if ( 'log-out' == $action )
+ $html .= "</p><p>" . sprintf( __( "Do you really want to <a href='%s'>log out</a>?"), wp_logout_url() );
+ elseif ( wp_get_referer() )
+ $html .= "</p><p><a href='" . esc_url( remove_query_arg( 'updated', wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>";
+
+ wp_die( $html, $title, array('response' => 403) );
}
-function wp_die( $message, $title = '' ) {
- global $wp_locale;
+/**
+ * Kill WordPress execution and display HTML message with error message.
+ *
+ * This function complements the die() PHP function. The difference is that
+ * HTML will be displayed to the user. It is recommended to use this function
+ * only, when the execution should not continue any further. It is not
+ * recommended to call this function very often and try to handle as many errors
+ * as possible siliently.
+ *
+ * @since 2.0.4
+ *
+ * @param string $message Error message.
+ * @param string $title Error title.
+ * @param string|array $args Optional arguements to control behaviour.
+ */
+function wp_die( $message, $title = '', $args = array() ) {
+ if ( defined( 'DOING_AJAX' ) && DOING_AJAX )
+ die('-1');
+
+ if ( function_exists( 'apply_filters' ) ) {
+ $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler');
+ } else {
+ $function = '_default_wp_die_handler';
+ }
+
+ call_user_func( $function, $message, $title, $args );
+}
+
+/**
+ * Kill WordPress execution and display HTML message with error message.
+ *
+ * This is the default handler for wp_die if you want a custom one for your
+ * site then you can overload using the wp_die_handler filter in wp_die
+ *
+ * @since 3.0.0
+ * @access private
+ *
+ * @param string $message Error message.
+ * @param string $title Error title.
+ * @param string|array $args Optional arguements to control behaviour.
+ */
+function _default_wp_die_handler( $message, $title = '', $args = array() ) {
+ $defaults = array( 'response' => 500 );
+ $r = wp_parse_args($args, $defaults);
+
+ $have_gettext = function_exists('__');
if ( function_exists( 'is_wp_error' ) && is_wp_error( $message ) ) {
if ( empty( $title ) ) {
$message = "<p>$message</p>";
}
+ if ( isset( $r['back_link'] ) && $r['back_link'] ) {
+ $back_text = $have_gettext? __('« Back') : '« Back';
+ $message .= "\n<p><a href='javascript:history.back()'>$back_text</p>";
+ }
+
if ( defined( 'WP_SITEURL' ) && '' != WP_SITEURL )
$admin_dir = WP_SITEURL . '/wp-admin/';
elseif ( function_exists( 'get_bloginfo' ) && '' != get_bloginfo( 'wpurl' ) )
$admin_dir = 'wp-admin/';
if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) :
- if( !headers_sent() ){
- status_header( 500 );
+ if ( !headers_sent() ) {
+ status_header( $r['response'] );
nocache_headers();
header( 'Content-Type: text/html; charset=utf-8' );
}
- if ( empty($title) ) {
- if ( function_exists( '__' ) )
- $title = __( 'WordPress › Error' );
- else
- $title = 'WordPress › Error';
- }
+ if ( empty($title) )
+ $title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error';
+ $text_direction = 'ltr';
+ if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] )
+ $text_direction = 'rtl';
+ elseif ( function_exists( 'is_rtl' ) && is_rtl() )
+ $text_direction = 'rtl';
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) ) language_attributes(); ?>>
+<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono -->
+<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) && function_exists( 'is_rtl' ) ) language_attributes(); else echo "dir='$text_direction'"; ?>>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title><?php echo $title ?></title>
<link rel="stylesheet" href="<?php echo $admin_dir; ?>css/install.css" type="text/css" />
<?php
-if ( ( $wp_locale ) && ( 'rtl' == $wp_locale->text_direction ) ) : ?>
+if ( 'rtl' == $text_direction ) : ?>
<link rel="stylesheet" href="<?php echo $admin_dir; ?>css/install-rtl.css" type="text/css" />
<?php endif; ?>
</head>
die();
}
-
+/**
+ * Retrieve the WordPress home page URL.
+ *
+ * If the constant named 'WP_HOME' exists, then it willl be used and returned by
+ * the function. This can be used to counter the redirection on your local
+ * development environment.
+ *
+ * @access private
+ * @package WordPress
+ * @since 2.2.0
+ *
+ * @param string $url URL for the home location
+ * @return string Homepage location.
+ */
function _config_wp_home( $url = '' ) {
if ( defined( 'WP_HOME' ) )
return WP_HOME;
return $url;
}
-
+/**
+ * Retrieve the WordPress site URL.
+ *
+ * If the constant named 'WP_SITEURL' is defined, then the value in that
+ * constant will always be returned. This can be used for debugging a site on
+ * your localhost while not having to change the database to your URL.
+ *
+ * @access private
+ * @package WordPress
+ * @since 2.2.0
+ *
+ * @param string $url URL to set the WordPress site location.
+ * @return string The WordPress Site URL
+ */
function _config_wp_siteurl( $url = '' ) {
if ( defined( 'WP_SITEURL' ) )
return WP_SITEURL;
return $url;
}
-
+/**
+ * Set the localized direction for MCE plugin.
+ *
+ * Will only set the direction to 'rtl', if the WordPress locale has the text
+ * direction set to 'rtl'.
+ *
+ * Fills in the 'directionality', 'plugins', and 'theme_advanced_button1' array
+ * keys. These keys are then returned in the $input array.
+ *
+ * @access private
+ * @package WordPress
+ * @subpackage MCE
+ * @since 2.1.0
+ *
+ * @param array $input MCE plugin array.
+ * @return array Direction set for 'rtl', if needed by locale.
+ */
function _mce_set_direction( $input ) {
- global $wp_locale;
-
- if ( 'rtl' == $wp_locale->text_direction ) {
+ if ( is_rtl() ) {
$input['directionality'] = 'rtl';
$input['plugins'] .= ',directionality';
$input['theme_advanced_buttons1'] .= ',ltr';
}
+/**
+ * Convert smiley code to the icon graphic file equivalent.
+ *
+ * You can turn off smilies, by going to the write setting screen and unchecking
+ * the box, or by setting 'use_smilies' option to false or removing the option.
+ *
+ * Plugins may override the default smiley list by setting the $wpsmiliestrans
+ * to an array, with the key the code the blogger types in and the value the
+ * image file.
+ *
+ * The $wp_smiliessearch global is for the regular expression and is set each
+ * time the function is called.
+ *
+ * The full list of smilies can be found in the function and won't be listed in
+ * the description. Probably should create a Codex page for it, so that it is
+ * available.
+ *
+ * @global array $wpsmiliestrans
+ * @global array $wp_smiliessearch
+ * @since 2.2.0
+ */
function smilies_init() {
- global $wpsmiliestrans, $wp_smiliessearch, $wp_smiliesreplace;
+ global $wpsmiliestrans, $wp_smiliessearch;
// don't bother setting up smilies if they are disabled
if ( !get_option( 'use_smilies' ) )
);
}
- $siteurl = get_option( 'siteurl' );
+ if (count($wpsmiliestrans) == 0) {
+ return;
+ }
+
+ /*
+ * NOTE: we sort the smilies in reverse key order. This is to make sure
+ * we match the longest possible smilie (:???: vs :?) as the regular
+ * expression used below is first-match
+ */
+ krsort($wpsmiliestrans);
+
+ $wp_smiliessearch = '/(?:\s|^)';
+
+ $subchar = '';
foreach ( (array) $wpsmiliestrans as $smiley => $img ) {
- $wp_smiliessearch[] = '/(\s|^)' . preg_quote( $smiley, '/' ) . '(\s|$)/';
- $smiley_masked = attribute_escape( trim( $smiley ) );
- $wp_smiliesreplace[] = " <img src='$siteurl/wp-includes/images/smilies/$img' alt='$smiley_masked' class='wp-smiley' /> ";
+ $firstchar = substr($smiley, 0, 1);
+ $rest = substr($smiley, 1);
+
+ // new subpattern?
+ if ($firstchar != $subchar) {
+ if ($subchar != '') {
+ $wp_smiliessearch .= ')|(?:\s|^)';
+ }
+ $subchar = $firstchar;
+ $wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:';
+ } else {
+ $wp_smiliessearch .= '|';
+ }
+ $wp_smiliessearch .= preg_quote($rest, '/');
}
-}
+ $wp_smiliessearch .= ')(?:\s|$)/m';
+}
+/**
+ * Merge user defined arguments into defaults array.
+ *
+ * This function is used throughout WordPress to allow for both string or array
+ * to be merged into another array.
+ *
+ * @since 2.2.0
+ *
+ * @param string|array $args Value to merge with $defaults
+ * @param array $defaults Array that serves as the defaults.
+ * @return array Merged user defined values with defaults.
+ */
function wp_parse_args( $args, $defaults = '' ) {
if ( is_object( $args ) )
$r = get_object_vars( $args );
return $r;
}
+/**
+ * Clean up an array, comma- or space-separated list of IDs
+ *
+ * @since 3.0.0
+ *
+ * @param array|string $list
+ * @return array Sanitized array of IDs
+ */
+function wp_parse_id_list( $list ) {
+ if ( !is_array($list) )
+ $list = preg_split('/[\s,]+/', $list);
-function wp_maybe_load_widgets() {
- if ( !function_exists( 'dynamic_sidebar' ) ) {
- require_once( ABSPATH . WPINC . '/widgets.php' );
- add_action( '_admin_menu', 'wp_widgets_add_menu' );
+ return array_unique(array_map('absint', $list));
+}
+
+/**
+ * Extract a slice of an array, given a list of keys
+ *
+ * @since 3.1.0
+ *
+ * @param array $array The original array
+ * @param array $keys The list of keys
+ * @return array The array slice
+ */
+function wp_array_slice_assoc( $array, $keys ) {
+ $slice = array();
+ foreach ( $keys as $key )
+ if ( isset( $array[ $key ] ) )
+ $slice[ $key ] = $array[ $key ];
+
+ return $slice;
+}
+
+/**
+ * Filters a list of objects, based on a set of key => value arguments
+ *
+ * @since 3.0.0
+ *
+ * @param array $list An array of objects to filter
+ * @param array $args An array of key => value arguments to match against each object
+ * @param string $operator The logical operation to perform. 'or' means only one element
+ * from the array needs to match; 'and' means all elements must match. The default is 'and'.
+ * @param bool|string $field A field from the object to place instead of the entire object
+ * @return array A list of objects or object fields
+ */
+function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) {
+ if ( ! is_array( $list ) )
+ return array();
+
+ $list = wp_list_filter( $list, $args, $operator );
+
+ if ( $field )
+ $list = wp_list_pluck( $list, $field );
+
+ return $list;
+}
+
+/**
+ * Filters a list of objects, based on a set of key => value arguments
+ *
+ * @since 3.1.0
+ *
+ * @param array $list An array of objects to filter
+ * @param array $args An array of key => value arguments to match against each object
+ * @param string $operator The logical operation to perform:
+ * 'AND' means all elements from the array must match;
+ * 'OR' means only one element needs to match;
+ * 'NOT' means no elements may match.
+ * The default is 'AND'.
+ * @return array
+ */
+function wp_list_filter( $list, $args = array(), $operator = 'AND' ) {
+ if ( ! is_array( $list ) )
+ return array();
+
+ if ( empty( $args ) )
+ return $list;
+
+ $operator = strtoupper( $operator );
+ $count = count( $args );
+ $filtered = array();
+
+ foreach ( $list as $key => $obj ) {
+ $matched = count( array_intersect_assoc( (array) $obj, $args ) );
+ if ( ( 'AND' == $operator && $matched == $count )
+ || ( 'OR' == $operator && $matched <= $count )
+ || ( 'NOT' == $operator && 0 == $matched ) ) {
+ $filtered[$key] = $obj;
+ }
}
+
+ return $filtered;
}
+/**
+ * Pluck a certain field out of each object in a list
+ *
+ * @since 3.1.0
+ *
+ * @param array $list A list of objects or arrays
+ * @param int|string $field A field from the object to place instead of the entire object
+ * @return array
+ */
+function wp_list_pluck( $list, $field ) {
+ foreach ( $list as $key => $value ) {
+ $value = (array) $value;
+ $list[ $key ] = $value[ $field ];
+ }
-function wp_widgets_add_menu() {
- global $submenu;
- $submenu['themes.php'][7] = array( __( 'Widgets' ), 'switch_themes', 'widgets.php' );
- ksort( $submenu['themes.php'], SORT_NUMERIC );
+ return $list;
}
+/**
+ * Determines if default embed handlers should be loaded.
+ *
+ * Checks to make sure that the embeds library hasn't already been loaded. If
+ * it hasn't, then it will load the embeds library.
+ *
+ * @since 2.9.0
+ */
+function wp_maybe_load_embeds() {
+ if ( ! apply_filters('load_default_embeds', true) )
+ return;
+ require_once( ABSPATH . WPINC . '/default-embeds.php' );
+}
-// For PHP 5.2, make sure all output buffers are flushed
-// before our singletons our destroyed.
-function wp_ob_end_flush_all() {
- while ( @ob_end_flush() );
+/**
+ * Determines if Widgets library should be loaded.
+ *
+ * Checks to make sure that the widgets library hasn't already been loaded. If
+ * it hasn't, then it will load the widgets library and run an action hook.
+ *
+ * @since 2.2.0
+ * @uses add_action() Calls '_admin_menu' hook with 'wp_widgets_add_menu' value.
+ */
+function wp_maybe_load_widgets() {
+ if ( ! apply_filters('load_default_widgets', true) )
+ return;
+ require_once( ABSPATH . WPINC . '/default-widgets.php' );
+ add_action( '_admin_menu', 'wp_widgets_add_menu' );
}
+/**
+ * Append the Widgets menu to the themes main menu.
+ *
+ * @since 2.2.0
+ * @uses $submenu The administration submenu list.
+ */
+function wp_widgets_add_menu() {
+ global $submenu;
+ $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' );
+ ksort( $submenu['themes.php'], SORT_NUMERIC );
+}
-/*
- * require_wp_db() - require_once the correct database class file.
+/**
+ * Flush all output buffers for PHP 5.2.
*
- * 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
+ * Make sure all output buffers are flushed before our singletons our destroyed.
*
- * @global $wpdb
+ * @since 2.2.0
*/
-function require_wp_db() {
- global $wpdb;
- if ( file_exists( ABSPATH . 'wp-content/db.php' ) )
- require_once( ABSPATH . 'wp-content/db.php' );
- else
- require_once( ABSPATH . WPINC . '/wp-db.php' );
+function wp_ob_end_flush_all() {
+ $levels = ob_get_level();
+ for ($i=0; $i<$levels; $i++)
+ ob_end_flush();
}
+/**
+ * Load custom DB error or display WordPress DB error.
+ *
+ * If a file exists in the wp-content directory named db-error.php, then it will
+ * be loaded instead of displaying the WordPress DB error. If it is not found,
+ * then the WordPress DB error will be displayed instead.
+ *
+ * The WordPress DB error sets the HTTP status header to 500 to try to prevent
+ * search engines from caching the message. Custom DB messages should do the
+ * same.
+ *
+ * This function was backported to the the WordPress 2.3.2, but originally was
+ * added in WordPress 2.5.0.
+ *
+ * @since 2.3.2
+ * @uses $wpdb
+ */
function dead_db() {
global $wpdb;
// Load custom DB error template, if present.
- if ( file_exists( ABSPATH . 'wp-content/db-error.php' ) ) {
- require_once( ABSPATH . 'wp-content/db-error.php' );
+ if ( file_exists( WP_CONTENT_DIR . '/db-error.php' ) ) {
+ require_once( WP_CONTENT_DIR . '/db-error.php' );
die();
}
}
/**
- * Converts input to an absolute integer
- * @param mixed $maybeint data you wish to have convered to an absolute integer
- * @return int an absolute integer
+ * Converts value to nonnegative integer.
+ *
+ * @since 2.5.0
+ *
+ * @param mixed $maybeint Data you wish to have convered to an nonnegative integer
+ * @return int An nonnegative integer
*/
function absint( $maybeint ) {
return abs( intval( $maybeint ) );
}
/**
- * Determines if the blog can be accessed over SSL
- * @return bool whether of not SSL access is available
+ * Determines if the blog can be accessed over SSL.
+ *
+ * Determines if blog can be accessed over SSL by using cURL to access the site
+ * using the https in the siteurl. Requires cURL extension to work correctly.
+ *
+ * @since 2.5.0
+ *
+ * @param string $url
+ * @return bool Whether SSL access is available
*/
function url_is_accessable_via_ssl($url)
{
if (in_array('curl', get_loaded_extensions())) {
- $ssl = preg_replace( '/^http:\/\//', 'https://', $url );
+ $ssl = preg_replace( '/^http:\/\//', 'https://', $url );
- $ch = curl_init();
- curl_setopt($ch, CURLOPT_URL, $ssl);
- curl_setopt($ch, CURLOPT_FAILONERROR, true);
- curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
- curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
+ $ch = curl_init();
+ curl_setopt($ch, CURLOPT_URL, $ssl);
+ curl_setopt($ch, CURLOPT_FAILONERROR, true);
+ curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+ curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
+ curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
- curl_exec($ch);
+ curl_exec($ch);
- $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
- curl_close ($ch);
+ $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+ curl_close ($ch);
- if ($status == 200 || $status == 401) {
- return true;
- }
+ if ($status == 200 || $status == 401) {
+ return true;
+ }
}
return false;
}
+/**
+ * Secure URL, if available or the given URL.
+ *
+ * @since 2.5.0
+ *
+ * @param string $url Complete URL path with transport.
+ * @return string Secure or regular URL path.
+ */
function atom_service_url_filter($url)
{
if ( url_is_accessable_via_ssl($url) )
- return preg_replace( '/^http:\/\//', 'https://', $url );
+ return preg_replace( '/^http:\/\//', 'https://', $url );
else
return $url;
}
/**
- * _deprecated_function() - Marks a function as deprecated and informs when it has been used.
+ * Marks a function as deprecated and informs when it has been used.
*
- * There is a hook deprecated_function_run that will be called that can be used to get the backtrace
- * up to what file and function called the deprecated function.
+ * There is a hook deprecated_function_run that will be called that can be used
+ * to get the backtrace up to what file and function called the deprecated
+ * function.
*
- * The current behavior is to trigger an user error if WP_DEBUG is defined and is true.
+ * The current behavior is to trigger a user error if WP_DEBUG is true.
*
- * This function is to be used in every function in depreceated.php
+ * This function is to be used in every function that is deprecated.
*
* @package WordPress
- * @package Debug
- * @since 2.5
+ * @subpackage Debug
+ * @since 2.5.0
* @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.
+ * @uses do_action() Calls 'deprecated_function_run' and passes the function name, what to use instead,
+ * and the version the function was deprecated in.
+ * @uses apply_filters() Calls 'deprecated_function_trigger_error' and expects boolean value of true to do
+ * trigger or false to not trigger error.
*
* @param string $function The function that was called
- * @param string $version The version of WordPress that depreceated the function
+ * @param string $version The version of WordPress that deprecated the function
* @param string $replacement Optional. The function that should have been called
*/
-function _deprecated_function($function, $version, $replacement=null) {
+function _deprecated_function( $function, $version, $replacement=null ) {
- do_action('deprecated_function_run', $function, $replacement);
+ do_action( 'deprecated_function_run', $function, $replacement, $version );
// Allow plugin to filter the output error trigger
- if( defined('WP_DEBUG') && ( true === WP_DEBUG ) && apply_filters( 'deprecated_function_trigger_error', true )) {
- if( !is_null($replacement) )
- trigger_error( printf( __("%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead."), $function, $version, $replacement ) );
+ if ( WP_DEBUG && apply_filters( 'deprecated_function_trigger_error', true ) ) {
+ if ( ! is_null($replacement) )
+ trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) );
else
- trigger_error( printf( __("%1$s is <strong>deprecated</strong> since version %2$s with no alternative available."), $function, $version ) );
+ trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) );
}
}
/**
- * _deprecated_file() - Marks a file as deprecated and informs when it has been used.
+ * Marks a file as deprecated and informs when it has been used.
*
- * There is a hook deprecated_file_included that will be called that can be used to get the backtrace
- * up to what file and function included the deprecated file.
+ * There is a hook deprecated_file_included that will be called that can be used
+ * to get the backtrace up to what file and function included the deprecated
+ * file.
*
- * The current behavior is to trigger an user error if WP_DEBUG is defined and is true.
+ * The current behavior is to trigger a user error if WP_DEBUG is true.
*
- * This function is to be used in every file that is depreceated
+ * This function is to be used in every file that is deprecated.
*
* @package WordPress
- * @package Debug
- * @since 2.5
+ * @subpackage Debug
+ * @since 2.5.0
* @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.
+ * @uses do_action() Calls 'deprecated_file_included' and passes the file name, what to use instead,
+ * the version in which the file was deprecated, and any message regarding the change.
+ * @uses apply_filters() Calls 'deprecated_file_trigger_error' and expects boolean value of true to do
+ * trigger or false to not trigger error.
*
* @param string $file The file that was included
- * @param string $version The version of WordPress that depreceated the function
- * @param string $replacement Optional. The function that should have been called
+ * @param string $version The version of WordPress that deprecated the file
+ * @param string $replacement Optional. The file that should have been included based on ABSPATH
+ * @param string $message Optional. A message regarding the change
+ */
+function _deprecated_file( $file, $version, $replacement = null, $message = '' ) {
+
+ do_action( 'deprecated_file_included', $file, $replacement, $version, $message );
+
+ // Allow plugin to filter the output error trigger
+ if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) {
+ $message = empty( $message ) ? '' : ' ' . $message;
+ if ( ! is_null( $replacement ) )
+ trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) . $message );
+ else
+ trigger_error( sprintf( __('%1$s is <strong>deprecated</strong> since version %2$s with no alternative available.'), $file, $version ) . $message );
+ }
+}
+/**
+ * Marks a function argument as deprecated and informs when it has been used.
+ *
+ * This function is to be used whenever a deprecated function argument is used.
+ * Before this function is called, the argument must be checked for whether it was
+ * used by comparing it to its default value or evaluating whether it is empty.
+ * For example:
+ * <code>
+ * if ( !empty($deprecated) )
+ * _deprecated_argument( __FUNCTION__, '3.0' );
+ * </code>
+ *
+ * There is a hook deprecated_argument_run that will be called that can be used
+ * to get the backtrace up to what file and function used the deprecated
+ * argument.
+ *
+ * The current behavior is to trigger a user error if WP_DEBUG is true.
+ *
+ * @package WordPress
+ * @subpackage Debug
+ * @since 3.0.0
+ * @access private
+ *
+ * @uses do_action() Calls 'deprecated_argument_run' and passes the function name, a message on the change,
+ * and the version in which the argument was deprecated.
+ * @uses apply_filters() Calls 'deprecated_argument_trigger_error' and expects boolean value of true to do
+ * trigger or false to not trigger error.
+ *
+ * @param string $function The function that was called
+ * @param string $version The version of WordPress that deprecated the argument used
+ * @param string $message Optional. A message regarding the change.
*/
-function _deprecated_file($file, $version, $replacement=null) {
+function _deprecated_argument( $function, $version, $message = null ) {
- do_action('deprecated_file_included', $file, $replacement);
+ do_action( 'deprecated_argument_run', $function, $message, $version );
// Allow plugin to filter the output error trigger
- if( defined('WP_DEBUG') && ( true === WP_DEBUG ) && apply_filters( 'deprecated_file_trigger_error', true )) {
- if( !is_null($replacement) )
- trigger_error( printf( __("%1$s is <strong>deprecated</strong> since version %2$s! Use %3$s instead."), $file, $version, $replacement ) );
+ if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) {
+ if ( ! is_null( $message ) )
+ trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s! %3$s'), $function, $version, $message ) );
else
- trigger_error( printf( __("%1$s is <strong>deprecated</strong> since version %2$s with no alternative available."), $file, $version ) );
+ trigger_error( sprintf( __('%1$s was called with an argument that is <strong>deprecated</strong> since version %2$s with no alternative available.'), $function, $version ) );
+ }
+}
+
+/**
+ * Marks something as being incorrectly called.
+ *
+ * There is a hook doing_it_wrong_run that will be called that can be used
+ * to get the backtrace up to what file and function called the deprecated
+ * function.
+ *
+ * The current behavior is to trigger a user error if WP_DEBUG is true.
+ *
+ * @package WordPress
+ * @subpackage Debug
+ * @since 3.1.0
+ * @access private
+ *
+ * @uses do_action() Calls 'doing_it_wrong_run' and passes the function arguments.
+ * @uses apply_filters() Calls 'doing_it_wrong_trigger_error' and expects boolean value of true to do
+ * trigger or false to not trigger error.
+ *
+ * @param string $function The function that was called.
+ * @param string $message A message explaining what has been done incorrectly.
+ * @param string $version The version of WordPress where the message was added.
+ */
+function _doing_it_wrong( $function, $message, $version ) {
+
+ do_action( 'doing_it_wrong_run', $function, $message, $version );
+
+ // Allow plugin to filter the output error trigger
+ if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) {
+ $version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version );
+ trigger_error( sprintf( __( '%1$s was called <strong>incorrectly</strong>. %2$s %3$s' ), $function, $message, $version ) );
}
}
/**
- * is_lighttpd_before_150() - Is the server running earlier than 1.5.0 version of lighttpd
+ * Is the server running earlier than 1.5.0 version of lighttpd
+ *
+ * @since 2.5.0
*
* @return bool Whether the server is running lighttpd < 1.5.0
*/
}
/**
- * apache_mod_loaded() - Does the specified module exist in the apache config?
+ * Does the specified module exist in the apache config?
+ *
+ * @since 2.5.0
*
* @param string $mod e.g. mod_rewrite
* @param bool $default The default return value if the module is not found
return $default;
}
+/**
+ * Check if IIS 7 supports pretty permalinks
+ *
+ * @since 2.8.0
+ *
+ * @return bool
+ */
+function iis7_supports_permalinks() {
+ global $is_iis7;
+
+ $supports_permalinks = false;
+ if ( $is_iis7 ) {
+ /* First we check if the DOMDocument class exists. If it does not exist,
+ * which is the case for PHP 4.X, then we cannot easily update the xml configuration file,
+ * hence we just bail out and tell user that pretty permalinks cannot be used.
+ * This is not a big issue because PHP 4.X is going to be depricated and for IIS it
+ * is recommended to use PHP 5.X NTS.
+ * Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When
+ * URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'.
+ * Lastly we make sure that PHP is running via FastCGI. This is important because if it runs
+ * via ISAPI then pretty permalinks will not work.
+ */
+ $supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' );
+ }
+
+ return apply_filters('iis7_supports_permalinks', $supports_permalinks);
+}
+
+/**
+ * File validates against allowed set of defined rules.
+ *
+ * A return value of '1' means that the $file contains either '..' or './'. A
+ * return value of '2' means that the $file contains ':' after the first
+ * character. A return value of '3' means that the file is not in the allowed
+ * files list.
+ *
+ * @since 1.2.0
+ *
+ * @param string $file File path.
+ * @param array $allowed_files List of allowed files.
+ * @return int 0 means nothing is wrong, greater than 0 means something was wrong.
+ */
+function validate_file( $file, $allowed_files = '' ) {
+ if ( false !== strpos( $file, '..' ))
+ return 1;
+
+ if ( false !== strpos( $file, './' ))
+ return 1;
+
+ if (!empty ( $allowed_files ) && (!in_array( $file, $allowed_files ) ) )
+ return 3;
+
+ if (':' == substr( $file, 1, 1 ))
+ return 2;
+
+ return 0;
+}
+
+/**
+ * Determine if SSL is used.
+ *
+ * @since 2.6.0
+ *
+ * @return bool True if SSL, false if not used.
+ */
+function is_ssl() {
+ if ( isset($_SERVER['HTTPS']) ) {
+ if ( 'on' == strtolower($_SERVER['HTTPS']) )
+ return true;
+ if ( '1' == $_SERVER['HTTPS'] )
+ return true;
+ } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Whether SSL login should be forced.
+ *
+ * @since 2.6.0
+ *
+ * @param string|bool $force Optional.
+ * @return bool True if forced, false if not forced.
+ */
+function force_ssl_login( $force = null ) {
+ static $forced = false;
+
+ if ( !is_null( $force ) ) {
+ $old_forced = $forced;
+ $forced = $force;
+ return $old_forced;
+ }
+
+ return $forced;
+}
+
+/**
+ * Whether to force SSL used for the Administration Panels.
+ *
+ * @since 2.6.0
+ *
+ * @param string|bool $force
+ * @return bool True if forced, false if not forced.
+ */
+function force_ssl_admin( $force = null ) {
+ static $forced = false;
+
+ if ( !is_null( $force ) ) {
+ $old_forced = $forced;
+ $forced = $force;
+ return $old_forced;
+ }
+
+ return $forced;
+}
+
+/**
+ * Guess the URL for the site.
+ *
+ * Will remove wp-admin links to retrieve only return URLs not in the wp-admin
+ * directory.
+ *
+ * @since 2.6.0
+ *
+ * @return string
+ */
+function wp_guess_url() {
+ if ( defined('WP_SITEURL') && '' != WP_SITEURL ) {
+ $url = WP_SITEURL;
+ } else {
+ $schema = is_ssl() ? 'https://' : 'http://';
+ $url = preg_replace('|/wp-admin/.*|i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
+ }
+ return rtrim($url, '/');
+}
+
+/**
+ * Suspend cache invalidation.
+ *
+ * Turns cache invalidation on and off. Useful during imports where you don't wont to do invalidations
+ * every time a post is inserted. Callers must be sure that what they are doing won't lead to an inconsistent
+ * cache when invalidation is suspended.
+ *
+ * @since 2.7.0
+ *
+ * @param bool $suspend Whether to suspend or enable cache invalidation
+ * @return bool The current suspend setting
+ */
+function wp_suspend_cache_invalidation($suspend = true) {
+ global $_wp_suspend_cache_invalidation;
+
+ $current_suspend = $_wp_suspend_cache_invalidation;
+ $_wp_suspend_cache_invalidation = $suspend;
+ return $current_suspend;
+}
+
+/**
+ * Retrieve site option value based on name of option.
+ *
+ * @see get_option()
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.8.0
+ *
+ * @uses apply_filters() Calls 'pre_site_option_$option' before checking the option.
+ * Any value other than false will "short-circuit" the retrieval of the option
+ * and return the returned value.
+ * @uses apply_filters() Calls 'site_option_$option', after checking the option, with
+ * the option value.
+ *
+ * @param string $option Name of option to retrieve. Expected to not be SQL-escaped.
+ * @param mixed $default Optional value to return if option doesn't exist. Default false.
+ * @param bool $use_cache Whether to use cache. Multisite only. Default true.
+ * @return mixed Value set for the option.
+ */
+function get_site_option( $option, $default = false, $use_cache = true ) {
+ global $wpdb;
+
+ // Allow plugins to short-circuit site options.
+ $pre = apply_filters( 'pre_site_option_' . $option, false );
+ if ( false !== $pre )
+ return $pre;
+
+ if ( !is_multisite() ) {
+ $value = get_option($option, $default);
+ } else {
+ $cache_key = "{$wpdb->siteid}:$option";
+ if ( $use_cache )
+ $value = wp_cache_get($cache_key, 'site-options');
+
+ if ( !isset($value) || (false === $value) ) {
+ $row = $wpdb->get_row( $wpdb->prepare("SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
+
+ // Has to be get_row instead of get_var because of funkiness with 0, false, null values
+ if ( is_object( $row ) )
+ $value = $row->meta_value;
+ else
+ $value = $default;
+
+ $value = maybe_unserialize( $value );
+
+ wp_cache_set( $cache_key, $value, 'site-options' );
+ }
+ }
+
+ return apply_filters( 'site_option_' . $option, $value );
+}
+
+/**
+ * Add a new site option.
+ *
+ * @see add_option()
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.8.0
+ *
+ * @uses apply_filters() Calls 'pre_add_site_option_$option' hook to allow overwriting the
+ * option value to be stored.
+ * @uses do_action() Calls 'add_site_option_$option' and 'add_site_option' hooks on success.
+ *
+ * @param string $option Name of option to add. Expected to not be SQL-escaped.
+ * @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped.
+ * @return bool False if option was not added and true if option was added.
+ */
+function add_site_option( $option, $value ) {
+ global $wpdb;
+
+ $value = apply_filters( 'pre_add_site_option_' . $option, $value );
+
+ if ( !is_multisite() ) {
+ $result = add_option( $option, $value );
+ } else {
+ $cache_key = "{$wpdb->siteid}:$option";
+
+ if ( $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) ) )
+ return update_site_option( $option, $value );
+
+ $value = sanitize_option( $option, $value );
+ wp_cache_set( $cache_key, $value, 'site-options' );
+
+ $_value = $value;
+ $value = maybe_serialize($value);
+ $result = $wpdb->insert( $wpdb->sitemeta, array('site_id' => $wpdb->siteid, 'meta_key' => $option, 'meta_value' => $value ) );
+ $value = $_value;
+ }
+
+ do_action( "add_site_option_{$option}", $option, $value );
+ do_action( "add_site_option", $option, $value );
+
+ return $result;
+}
+
+/**
+ * Removes site option by name.
+ *
+ * @see delete_option()
+ * @package WordPress
+ * @subpackage Option
+ * @since 2.8.0
+ *
+ * @uses do_action() Calls 'pre_delete_site_option_$option' hook before option is deleted.
+ * @uses do_action() Calls 'delete_site_option' and 'delete_site_option_$option'
+ * hooks on success.
+ *
+ * @param string $option Name of option to remove. Expected to not be SQL-escaped.
+ * @return bool True, if succeed. False, if failure.
+ */
+function delete_site_option( $option ) {
+ global $wpdb;
+
+ // ms_protect_special_option( $option ); @todo
+
+ do_action( 'pre_delete_site_option_' . $option );
+
+ if ( !is_multisite() ) {
+ $result = delete_option( $option );
+ } else {
+ $row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
+ if ( is_null( $row ) || !$row->meta_id )
+ return false;
+ $cache_key = "{$wpdb->siteid}:$option";
+ wp_cache_delete( $cache_key, 'site-options' );
+
+ $result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) );
+ }
+
+ if ( $result ) {
+ do_action( "delete_site_option_{$option}", $option );
+ do_action( "delete_site_option", $option );
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Update the value of a site option that was already added.
+ *
+ * @see update_option()
+ * @since 2.8.0
+ * @package WordPress
+ * @subpackage Option
+ *
+ * @uses apply_filters() Calls 'pre_update_site_option_$option' hook to allow overwriting the
+ * option value to be stored.
+ * @uses do_action() Calls 'update_site_option_$option' and 'update_site_option' hooks on success.
+ *
+ * @param string $option Name of option. Expected to not be SQL-escaped.
+ * @param mixed $value Option value. Expected to not be SQL-escaped.
+ * @return bool False if value was not updated and true if value was updated.
+ */
+function update_site_option( $option, $value ) {
+ global $wpdb;
+
+ $oldvalue = get_site_option( $option );
+ $value = apply_filters( 'pre_update_site_option_' . $option, $value, $oldvalue );
+
+ if ( $value === $oldvalue )
+ return false;
+
+ if ( !is_multisite() ) {
+ $result = update_option( $option, $value );
+ } else {
+ $cache_key = "{$wpdb->siteid}:$option";
+
+ if ( $value && !$wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) ) )
+ return add_site_option( $option, $value );
+ $value = sanitize_option( $option, $value );
+ wp_cache_set( $cache_key, $value, 'site-options' );
+
+ $_value = $value;
+ $value = maybe_serialize( $value );
+ $result = $wpdb->update( $wpdb->sitemeta, array( 'meta_value' => $value ), array( 'site_id' => $wpdb->siteid, 'meta_key' => $option ) );
+ $value = $_value;
+ }
+
+ if ( $result ) {
+ do_action( "update_site_option_{$option}", $option, $value );
+ do_action( "update_site_option", $option, $value );
+ return true;
+ }
+ return false;
+}
+
+/**
+ * Delete a site transient
+ *
+ * @since 2.9.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @uses do_action() Calls 'delete_site_transient_$transient' hook before transient is deleted.
+ * @uses do_action() Calls 'deleted_site_transient' hook on success.
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped.
+ * @return bool True if successful, false otherwise
+ */
+function delete_site_transient( $transient ) {
+ global $_wp_using_ext_object_cache;
+
+ do_action( 'delete_site_transient_' . $transient, $transient );
+ if ( $_wp_using_ext_object_cache ) {
+ $result = wp_cache_delete( $transient, 'site-transient' );
+ } else {
+ $option_timeout = '_site_transient_timeout_' . $transient;
+ $option = '_site_transient_' . $transient;
+ $result = delete_site_option( $option );
+ if ( $result )
+ delete_site_option( $option_timeout );
+ }
+ if ( $result )
+ do_action( 'deleted_site_transient', $transient );
+ return $result;
+}
+
+/**
+ * Get the value of a site transient
+ *
+ * If the transient does not exist or does not have a value, then the return value
+ * will be false.
+ *
+ * @see get_transient()
+ * @since 2.9.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @uses apply_filters() Calls 'pre_site_transient_$transient' hook before checking the transient.
+ * Any value other than false will "short-circuit" the retrieval of the transient
+ * and return the returned value.
+ * @uses apply_filters() Calls 'site_transient_$option' hook, after checking the transient, with
+ * the transient value.
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped.
+ * @return mixed Value of transient
+ */
+function get_site_transient( $transient ) {
+ global $_wp_using_ext_object_cache;
+
+ $pre = apply_filters( 'pre_site_transient_' . $transient, false );
+ if ( false !== $pre )
+ return $pre;
+
+ if ( $_wp_using_ext_object_cache ) {
+ $value = wp_cache_get( $transient, 'site-transient' );
+ } else {
+ // Core transients that do not have a timeout. Listed here so querying timeouts can be avoided.
+ $no_timeout = array('update_core', 'update_plugins', 'update_themes');
+ $transient_option = '_site_transient_' . $transient;
+ if ( ! in_array( $transient, $no_timeout ) ) {
+ $transient_timeout = '_site_transient_timeout_' . $transient;
+ $timeout = get_site_option( $transient_timeout );
+ if ( false !== $timeout && $timeout < time() ) {
+ delete_site_option( $transient_option );
+ delete_site_option( $transient_timeout );
+ return false;
+ }
+ }
+
+ $value = get_site_option( $transient_option );
+ }
+
+ return apply_filters( 'site_transient_' . $transient, $value );
+}
+
+/**
+ * Set/update the value of a site transient
+ *
+ * You do not need to serialize values, if the value needs to be serialize, then
+ * it will be serialized before it is set.
+ *
+ * @see set_transient()
+ * @since 2.9.0
+ * @package WordPress
+ * @subpackage Transient
+ *
+ * @uses apply_filters() Calls 'pre_set_site_transient_$transient' hook to allow overwriting the
+ * transient value to be stored.
+ * @uses do_action() Calls 'set_site_transient_$transient' and 'setted_site_transient' hooks on success.
+ *
+ * @param string $transient Transient name. Expected to not be SQL-escaped.
+ * @param mixed $value Transient value. Expected to not be SQL-escaped.
+ * @param int $expiration Time until expiration in seconds, default 0
+ * @return bool False if value was not set and true if value was set.
+ */
+function set_site_transient( $transient, $value, $expiration = 0 ) {
+ global $_wp_using_ext_object_cache;
+
+ $value = apply_filters( 'pre_set_site_transient_' . $transient, $value );
+
+ if ( $_wp_using_ext_object_cache ) {
+ $result = wp_cache_set( $transient, $value, 'site-transient', $expiration );
+ } else {
+ $transient_timeout = '_site_transient_timeout_' . $transient;
+ $transient = '_site_transient_' . $transient;
+ if ( false === get_site_option( $transient ) ) {
+ if ( $expiration )
+ add_site_option( $transient_timeout, time() + $expiration );
+ $result = add_site_option( $transient, $value );
+ } else {
+ if ( $expiration )
+ update_site_option( $transient_timeout, time() + $expiration );
+ $result = update_site_option( $transient, $value );
+ }
+ }
+ if ( $result ) {
+ do_action( 'set_site_transient_' . $transient );
+ do_action( 'setted_site_transient', $transient );
+ }
+ return $result;
+}
+
+/**
+ * is main site
+ *
+ *
+ * @since 3.0.0
+ * @package WordPress
+ *
+ * @param int $blog_id optional blog id to test (default current blog)
+ * @return bool True if not multisite or $blog_id is main site
+ */
+function is_main_site( $blog_id = '' ) {
+ global $current_site, $current_blog;
+
+ if ( !is_multisite() )
+ return true;
+
+ if ( !$blog_id )
+ $blog_id = $current_blog->blog_id;
+
+ return $blog_id == $current_site->blog_id;
+}
+
+/**
+ * Whether global terms are enabled.
+ *
+ *
+ * @since 3.0.0
+ * @package WordPress
+ *
+ * @return bool True if multisite and global terms enabled
+ */
+function global_terms_enabled() {
+ if ( ! is_multisite() )
+ return false;
+
+ static $global_terms = null;
+ if ( is_null( $global_terms ) ) {
+ $filter = apply_filters( 'global_terms_enabled', null );
+ if ( ! is_null( $filter ) )
+ $global_terms = (bool) $filter;
+ else
+ $global_terms = (bool) get_site_option( 'global_terms_enabled', false );
+ }
+ return $global_terms;
+}
+
+/**
+ * gmt_offset modification for smart timezone handling
+ *
+ * Overrides the gmt_offset option if we have a timezone_string available
+ *
+ * @since 2.8.0
+ *
+ * @return float|bool
+ */
+function wp_timezone_override_offset() {
+ if ( !wp_timezone_supported() ) {
+ return false;
+ }
+ if ( !$timezone_string = get_option( 'timezone_string' ) ) {
+ return false;
+ }
+
+ $timezone_object = timezone_open( $timezone_string );
+ $datetime_object = date_create();
+ if ( false === $timezone_object || false === $datetime_object ) {
+ return false;
+ }
+ return round( timezone_offset_get( $timezone_object, $datetime_object ) / 3600, 2 );
+}
+
+/**
+ * Check for PHP timezone support
+ *
+ * @since 2.9.0
+ *
+ * @return bool
+ */
+function wp_timezone_supported() {
+ $support = false;
+ if (
+ function_exists( 'date_create' ) &&
+ function_exists( 'date_default_timezone_set' ) &&
+ function_exists( 'timezone_identifiers_list' ) &&
+ function_exists( 'timezone_open' ) &&
+ function_exists( 'timezone_offset_get' )
+ ) {
+ $support = true;
+ }
+ return apply_filters( 'timezone_support', $support );
+}
+
+/**
+ * {@internal Missing Short Description}}
+ *
+ * @since 2.9.0
+ *
+ * @param unknown_type $a
+ * @param unknown_type $b
+ * @return int
+ */
+function _wp_timezone_choice_usort_callback( $a, $b ) {
+ // Don't use translated versions of Etc
+ if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) {
+ // Make the order of these more like the old dropdown
+ if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) {
+ return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) );
+ }
+ if ( 'UTC' === $a['city'] ) {
+ if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) {
+ return 1;
+ }
+ return -1;
+ }
+ if ( 'UTC' === $b['city'] ) {
+ if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) {
+ return -1;
+ }
+ return 1;
+ }
+ return strnatcasecmp( $a['city'], $b['city'] );
+ }
+ if ( $a['t_continent'] == $b['t_continent'] ) {
+ if ( $a['t_city'] == $b['t_city'] ) {
+ return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] );
+ }
+ return strnatcasecmp( $a['t_city'], $b['t_city'] );
+ } else {
+ // Force Etc to the bottom of the list
+ if ( 'Etc' === $a['continent'] ) {
+ return 1;
+ }
+ if ( 'Etc' === $b['continent'] ) {
+ return -1;
+ }
+ return strnatcasecmp( $a['t_continent'], $b['t_continent'] );
+ }
+}
+
+/**
+ * Gives a nicely formatted list of timezone strings // temporary! Not in final
+ *
+ * @since 2.9.0
+ *
+ * @param string $selected_zone Selected Zone
+ * @return string
+ */
+function wp_timezone_choice( $selected_zone ) {
+ static $mo_loaded = false;
+
+ $continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific');
+
+ // Load translations for continents and cities
+ if ( !$mo_loaded ) {
+ $locale = get_locale();
+ $mofile = WP_LANG_DIR . '/continents-cities-' . $locale . '.mo';
+ load_textdomain( 'continents-cities', $mofile );
+ $mo_loaded = true;
+ }
+
+ $zonen = array();
+ foreach ( timezone_identifiers_list() as $zone ) {
+ $zone = explode( '/', $zone );
+ if ( !in_array( $zone[0], $continents ) ) {
+ continue;
+ }
+
+ // This determines what gets set and translated - we don't translate Etc/* strings here, they are done later
+ $exists = array(
+ 0 => ( isset( $zone[0] ) && $zone[0] ),
+ 1 => ( isset( $zone[1] ) && $zone[1] ),
+ 2 => ( isset( $zone[2] ) && $zone[2] ),
+ );
+ $exists[3] = ( $exists[0] && 'Etc' !== $zone[0] );
+ $exists[4] = ( $exists[1] && $exists[3] );
+ $exists[5] = ( $exists[2] && $exists[3] );
+
+ $zonen[] = array(
+ 'continent' => ( $exists[0] ? $zone[0] : '' ),
+ 'city' => ( $exists[1] ? $zone[1] : '' ),
+ 'subcity' => ( $exists[2] ? $zone[2] : '' ),
+ 't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ),
+ 't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ),
+ 't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' )
+ );
+ }
+ usort( $zonen, '_wp_timezone_choice_usort_callback' );
+
+ $structure = array();
+
+ if ( empty( $selected_zone ) ) {
+ $structure[] = '<option selected="selected" value="">' . __( 'Select a city' ) . '</option>';
+ }
+
+ foreach ( $zonen as $key => $zone ) {
+ // Build value in an array to join later
+ $value = array( $zone['continent'] );
+
+ if ( empty( $zone['city'] ) ) {
+ // It's at the continent level (generally won't happen)
+ $display = $zone['t_continent'];
+ } else {
+ // It's inside a continent group
+
+ // Continent optgroup
+ if ( !isset( $zonen[$key - 1] ) || $zonen[$key - 1]['continent'] !== $zone['continent'] ) {
+ $label = $zone['t_continent'];
+ $structure[] = '<optgroup label="'. esc_attr( $label ) .'">';
+ }
+
+ // Add the city to the value
+ $value[] = $zone['city'];
+
+ $display = $zone['t_city'];
+ if ( !empty( $zone['subcity'] ) ) {
+ // Add the subcity to the value
+ $value[] = $zone['subcity'];
+ $display .= ' - ' . $zone['t_subcity'];
+ }
+ }
+
+ // Build the value
+ $value = join( '/', $value );
+ $selected = '';
+ if ( $value === $selected_zone ) {
+ $selected = 'selected="selected" ';
+ }
+ $structure[] = '<option ' . $selected . 'value="' . esc_attr( $value ) . '">' . esc_html( $display ) . "</option>";
+
+ // Close continent optgroup
+ if ( !empty( $zone['city'] ) && ( !isset($zonen[$key + 1]) || (isset( $zonen[$key + 1] ) && $zonen[$key + 1]['continent'] !== $zone['continent']) ) ) {
+ $structure[] = '</optgroup>';
+ }
+ }
+
+ // Do UTC
+ $structure[] = '<optgroup label="'. esc_attr__( 'UTC' ) .'">';
+ $selected = '';
+ if ( 'UTC' === $selected_zone )
+ $selected = 'selected="selected" ';
+ $structure[] = '<option ' . $selected . 'value="' . esc_attr( 'UTC' ) . '">' . __('UTC') . '</option>';
+ $structure[] = '</optgroup>';
+
+ // Do manual UTC offsets
+ $structure[] = '<optgroup label="'. esc_attr__( 'Manual Offsets' ) .'">';
+ $offset_range = array (-12, -11.5, -11, -10.5, -10, -9.5, -9, -8.5, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1, -0.5,
+ 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 5.75, 6, 6.5, 7, 7.5, 8, 8.5, 8.75, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 13.75, 14);
+ foreach ( $offset_range as $offset ) {
+ if ( 0 <= $offset )
+ $offset_name = '+' . $offset;
+ else
+ $offset_name = (string) $offset;
+
+ $offset_value = $offset_name;
+ $offset_name = str_replace(array('.25','.5','.75'), array(':15',':30',':45'), $offset_name);
+ $offset_name = 'UTC' . $offset_name;
+ $offset_value = 'UTC' . $offset_value;
+ $selected = '';
+ if ( $offset_value === $selected_zone )
+ $selected = 'selected="selected" ';
+ $structure[] = '<option ' . $selected . 'value="' . esc_attr( $offset_value ) . '">' . esc_html( $offset_name ) . "</option>";
+
+ }
+ $structure[] = '</optgroup>';
+
+ return join( "\n", $structure );
+}
+
+/**
+ * Strip close comment and close php tags from file headers used by WP
+ * See http://core.trac.wordpress.org/ticket/8497
+ *
+ * @since 2.8.0
+ *
+ * @param string $str
+ * @return string
+ */
+function _cleanup_header_comment($str) {
+ return trim(preg_replace("/\s*(?:\*\/|\?>).*/", '', $str));
+}
+
+/**
+ * Permanently deletes posts, pages, attachments, and comments which have been in the trash for EMPTY_TRASH_DAYS.
+ *
+ * @since 2.9.0
+ */
+function wp_scheduled_delete() {
+ global $wpdb;
+
+ $delete_timestamp = time() - (60*60*24*EMPTY_TRASH_DAYS);
+
+ $posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);
+
+ foreach ( (array) $posts_to_delete as $post ) {
+ $post_id = (int) $post['post_id'];
+ if ( !$post_id )
+ continue;
+
+ $del_post = get_post($post_id);
+
+ if ( !$del_post || 'trash' != $del_post->post_status ) {
+ delete_post_meta($post_id, '_wp_trash_meta_status');
+ delete_post_meta($post_id, '_wp_trash_meta_time');
+ } else {
+ wp_delete_post($post_id);
+ }
+ }
+
+ $comments_to_delete = $wpdb->get_results($wpdb->prepare("SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);
+
+ foreach ( (array) $comments_to_delete as $comment ) {
+ $comment_id = (int) $comment['comment_id'];
+ if ( !$comment_id )
+ continue;
+
+ $del_comment = get_comment($comment_id);
+
+ if ( !$del_comment || 'trash' != $del_comment->comment_approved ) {
+ delete_comment_meta($comment_id, '_wp_trash_meta_time');
+ delete_comment_meta($comment_id, '_wp_trash_meta_status');
+ } else {
+ wp_delete_comment($comment_id);
+ }
+ }
+}
+
+/**
+ * Retrieve metadata from a file.
+ *
+ * Searches for metadata in the first 8kiB of a file, such as a plugin or theme.
+ * Each piece of metadata must be on its own line. Fields can not span multple
+ * lines, the value will get cut at the end of the first line.
+ *
+ * If the file data is not within that first 8kiB, then the author should correct
+ * their plugin file and move the data headers to the top.
+ *
+ * @see http://codex.wordpress.org/File_Header
+ *
+ * @since 2.9.0
+ * @param string $file Path to the file
+ * @param array $default_headers List of headers, in the format array('HeaderKey' => 'Header Name')
+ * @param string $context If specified adds filter hook "extra_{$context}_headers"
+ */
+function get_file_data( $file, $default_headers, $context = '' ) {
+ // We don't need to write to the file, so just open for reading.
+ $fp = fopen( $file, 'r' );
+
+ // Pull only the first 8kiB of the file in.
+ $file_data = fread( $fp, 8192 );
+
+ // PHP will close file handle, but we are good citizens.
+ fclose( $fp );
+
+ if ( $context != '' ) {
+ $extra_headers = apply_filters( "extra_{$context}_headers", array() );
+
+ $extra_headers = array_flip( $extra_headers );
+ foreach( $extra_headers as $key=>$value ) {
+ $extra_headers[$key] = $key;
+ }
+ $all_headers = array_merge( $extra_headers, (array) $default_headers );
+ } else {
+ $all_headers = $default_headers;
+ }
+
+ foreach ( $all_headers as $field => $regex ) {
+ preg_match( '/^[ \t\/*#]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, ${$field});
+ if ( !empty( ${$field} ) )
+ ${$field} = _cleanup_header_comment( ${$field}[1] );
+ else
+ ${$field} = '';
+ }
+
+ $file_data = compact( array_keys( $all_headers ) );
+
+ return $file_data;
+}
+
+/**
+ * Used internally to tidy up the search terms
+ *
+ * @access private
+ * @since 2.9.0
+ *
+ * @param string $t
+ * @return string
+ */
+function _search_terms_tidy($t) {
+ return trim($t, "\"'\n\r ");
+}
+
+/**
+ * Returns true
+ *
+ * Useful for returning true to filters easily
+ *
+ * @since 3.0.0
+ * @see __return_false()
+ * @return bool true
+ */
+function __return_true() {
+ return true;
+}
+
+/**
+ * Returns false
+ *
+ * Useful for returning false to filters easily
+ *
+ * @since 3.0.0
+ * @see __return_true()
+ * @return bool false
+ */
+function __return_false() {
+ return false;
+}
+
+/**
+ * Returns 0
+ *
+ * Useful for returning 0 to filters easily
+ *
+ * @since 3.0.0
+ * @see __return_zero()
+ * @return int 0
+ */
+function __return_zero() {
+ return 0;
+}
+
+/**
+ * Returns an empty array
+ *
+ * Useful for returning an empty array to filters easily
+ *
+ * @since 3.0.0
+ * @see __return_zero()
+ * @return array Empty array
+ */
+function __return_empty_array() {
+ return array();
+}
+
+/**
+ * Send a HTTP header to disable content type sniffing in browsers which support it.
+ *
+ * @link http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx
+ * @link http://src.chromium.org/viewvc/chrome?view=rev&revision=6985
+ *
+ * @since 3.0.0
+ * @return none
+ */
+function send_nosniff_header() {
+ @header( 'X-Content-Type-Options: nosniff' );
+}
+
+/**
+ * Returns a MySQL expression for selecting the week number based on the start_of_week option.
+ *
+ * @internal
+ * @since 3.0.0
+ * @param string $column
+ * @return string
+ */
+function _wp_mysql_week( $column ) {
+ switch ( $start_of_week = (int) get_option( 'start_of_week' ) ) {
+ default :
+ case 0 :
+ return "WEEK( $column, 0 )";
+ case 1 :
+ return "WEEK( $column, 1 )";
+ case 2 :
+ case 3 :
+ case 4 :
+ case 5 :
+ case 6 :
+ return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )";
+ }
+}
+
+/**
+ * Finds hierarchy loops using a callback function that maps object IDs to parent IDs.
+ *
+ * @since 3.1.0
+ * @access private
+ *
+ * @param callback $callback function that accepts ( ID, $callback_args ) and outputs parent_ID
+ * @param int $start The ID to start the loop check at
+ * @param int $start_parent the parent_ID of $start to use instead of calling $callback( $start ). Use null to always use $callback
+ * @param array $callback_args optional additional arguments to send to $callback
+ * @return array IDs of all members of loop
+ */
+function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) {
+ $override = is_null( $start_parent ) ? array() : array( $start => $start_parent );
+
+ if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) )
+ return array();
+
+ return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true );
+}
+
+/**
+ * Uses the "The Tortoise and the Hare" algorithm to detect loops.
+ *
+ * For every step of the algorithm, the hare takes two steps and the tortoise one.
+ * If the hare ever laps the tortoise, there must be a loop.
+ *
+ * @since 3.1.0
+ * @access private
+ *
+ * @param callback $callback function that accupts ( ID, callback_arg, ... ) and outputs parent_ID
+ * @param int $start The ID to start the loop check at
+ * @param array $override an array of ( ID => parent_ID, ... ) to use instead of $callback
+ * @param array $callback_args optional additional arguments to send to $callback
+ * @param bool $_return_loop Return loop members or just detect presence of loop?
+ * Only set to true if you already know the given $start is part of a loop
+ * (otherwise the returned array might include branches)
+ * @return mixed scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if $_return_loop
+ */
+function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) {
+ $tortoise = $hare = $evanescent_hare = $start;
+ $return = array();
+
+ // Set evanescent_hare to one past hare
+ // Increment hare two steps
+ while (
+ $tortoise
+ &&
+ ( $evanescent_hare = isset( $override[$hare] ) ? $override[$hare] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) )
+ &&
+ ( $hare = isset( $override[$evanescent_hare] ) ? $override[$evanescent_hare] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) )
+ ) {
+ if ( $_return_loop )
+ $return[$tortoise] = $return[$evanescent_hare] = $return[$hare] = true;
+
+ // tortoise got lapped - must be a loop
+ if ( $tortoise == $evanescent_hare || $tortoise == $hare )
+ return $_return_loop ? $return : $tortoise;
+
+ // Increment tortoise by one step
+ $tortoise = isset( $override[$tortoise] ) ? $override[$tortoise] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) );
+ }
+
+ return false;
+}
+
?>