X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/f9001779751f83dc8a10e478bfecb4d8dd5f964c..a6f44f0edcda2471c5a33e4156c1c9488c7f3210:/wp-includes/functions.php diff --git a/wp-includes/functions.php b/wp-includes/functions.php index 65ee33ea..ea774868 100644 --- a/wp-includes/functions.php +++ b/wp-includes/functions.php @@ -5,40 +5,40 @@ * @package WordPress */ +require( ABSPATH . WPINC . '/option.php' ); + /** - * Converts MySQL DATETIME field to user specified date format. + * Converts given date string into a different 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. + * $format should be either a PHP date format string, e.g. 'U' for a Unix + * timestamp, or 'G' for a Unix timestamp assuming that $date is GMT. * - * 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. + * If $translate is true then the given date and format string will + * be passed to date_i18n() for translation. * * @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). + * @param string $format Format of the date to return. + * @param string $date Date string to convert. + * @param bool $translate Whether the return date should be translated. Default is true. + * @return string|int Formatted date string, or Unix timestamp. */ -function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) { - $m = $mysqlstring; - if ( empty( $m ) ) +function mysql2date( $format, $date, $translate = true ) { + if ( empty( $date ) ) return false; - if ( 'G' == $dateformatstring ) - return strtotime( $m . ' +0000' ); + if ( 'G' == $format ) + return strtotime( $date . ' +0000' ); - $i = strtotime( $m ); + $i = strtotime( $date ); - if ( 'U' == $dateformatstring ) + if ( 'U' == $format ) return $i; if ( $translate ) - return date_i18n( $dateformatstring, $i ); + return date_i18n( $format, $i ); else - return date( $dateformatstring, $i ); + return date( $format, $i ); } /** @@ -59,10 +59,10 @@ function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) { function current_time( $type, $gmt = 0 ) { switch ( $type ) { case 'mysql': - return ( $gmt ) ? gmdate( 'Y-m-d H:i:s' ) : gmdate( 'Y-m-d H:i:s', ( time() + ( get_option( 'gmt_offset' ) * 3600 ) ) ); + return ( $gmt ) ? gmdate( 'Y-m-d H:i:s' ) : gmdate( 'Y-m-d H:i:s', ( time() + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ) ) ); break; case 'timestamp': - return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * 3600 ); + return ( $gmt ) ? time() : time() + ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS ); break; } } @@ -84,8 +84,8 @@ function current_time( $type, $gmt = 0 ) { 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 ( false === $i ) { if ( ! $gmt ) $i = current_time( 'timestamp' ); else @@ -120,7 +120,7 @@ function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) { } $timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' ); $timezone_formats_re = implode( '|', $timezone_formats ); - if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) && wp_timezone_supported() ) { + if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) ) { $timezone_string = get_option( 'timezone_string' ); if ( $timezone_string ) { $timezone_object = timezone_open( $timezone_string ); @@ -214,8 +214,8 @@ function get_weekstartend( $mysqlstring, $start_of_week = '' ) { if ( $weekday < $start_of_week ) $weekday += 7; - $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 + $start = $day - DAY_IN_SECONDS * ( $weekday - $start_of_week ); // The most recent week start day on or before $day + $end = $start + 7 * DAY_IN_SECONDS - 1; // $start + 7 days - 1 second return compact( 'start', 'end' ); } @@ -242,9 +242,10 @@ function maybe_unserialize( $original ) { * @since 2.0.5 * * @param mixed $data Value to check to see if was serialized. + * @param bool $strict Optional. Whether to be strict about the end of the string. Defaults true. * @return bool False if not serialized and true if it was. */ -function is_serialized( $data ) { +function is_serialized( $data, $strict = true ) { // if it isn't a string, it isn't serialized if ( ! is_string( $data ) ) return false; @@ -256,763 +257,69 @@ function is_serialized( $data ) { return false; if ( ':' !== $data[1] ) return false; - $lastc = $data[$length-1]; - if ( ';' !== $lastc && '}' !== $lastc ) - return false; + if ( $strict ) { + $lastc = $data[ $length - 1 ]; + if ( ';' !== $lastc && '}' !== $lastc ) + return false; + } else { + $semicolon = strpos( $data, ';' ); + $brace = strpos( $data, '}' ); + // Either ; or } must exist. + if ( false === $semicolon && false === $brace ) + return false; + // But neither must be in the first X characters. + if ( false !== $semicolon && $semicolon < 3 ) + return false; + if ( false !== $brace && $brace < 4 ) + return false; + } $token = $data[0]; switch ( $token ) { case 's' : - if ( '"' !== $data[$length-2] ) - return false; - case 'a' : - case 'O' : - return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); - case 'b' : - case 'i' : - case 'd' : - return (bool) preg_match( "/^{$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; - $data = trim( $data ); - if ( preg_match( '/^s:[0-9]+:.*;$/s', $data ) ) // this should fetch all serialized strings - return true; - return false; -} - -/** - * Retrieve option value based on name of option. - * - * If the option does not exist or does not have a value, then the return value - * will be false. This is useful to check whether you need to install an option - * and is commonly used during installation of plugin options and to test - * whether upgrading is required. - * - * If the option was serialized then it will be unserialized when it is returned. - * - * @since 1.5.0 - * @package WordPress - * @subpackage Option - * @uses apply_filters() Calls 'pre_option_$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_' . $option, false ); - if ( false !== $pre ) - return $pre; - - $option = trim($option); - if ( empty($option) ) - return false; - - if ( defined( 'WP_SETUP_CONFIG' ) ) - return false; - - if ( ! defined( 'WP_INSTALLING' ) ) { - // prevent non-existent options from triggering multiple queries - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( isset( $notoptions[$option] ) ) - return $default; - - $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' == $option && '' == $value ) - return get_option( 'siteurl' ); - - if ( in_array( $option, array('siteurl', 'home', 'category_base', 'tag_base') ) ) - $value = untrailingslashit( $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 ) ) - 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 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; - - if ( !defined( 'WP_INSTALLING' ) || !is_multisite() ) - $alloptions = wp_cache_get( 'alloptions', 'options' ); - else - $alloptions = false; - - if ( !$alloptions ) { - $suppress = $wpdb->suppress_errors(); - if ( !$alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) ) - $alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ); - $wpdb->suppress_errors($suppress); - $alloptions = array(); - foreach ( (array) $alloptions_db as $o ) { - $alloptions[$o->option_name] = $o->option_value; - } - 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, $option->meta_value, 'site-options' ); - } -} - -/** - * Update the value of an option that was already added. - * - * You do not need to serialize values. If the value needs to be serialized, then - * it will be serialized before it is inserted into the database. Remember, - * resources can not be serialized or added as an option. - * - * If the option does not exist, then the option will be added with the option - * value, but you will not be able to set whether it is autoloaded. If you want - * to set whether an option is autoloaded, then you need to use the add_option(). - * - * @since 1.0.0 - * @package WordPress - * @subpackage Option - * - * @uses apply_filters() Calls 'pre_update_option_$option' hook to allow overwriting the - * option value to be stored. - * @uses do_action() Calls 'update_option' hook before updating the option. - * @uses do_action() Calls 'update_option_$option' and 'updated_option' hooks on success. - * - * @param string $option Option name. Expected to not be SQL-escaped. - * @param mixed $newvalue Option value. Expected to not be SQL-escaped. - * @return bool False if value was not updated and true if value was updated. - */ -function update_option( $option, $newvalue ) { - global $wpdb; - - $option = trim($option); - if ( empty($option) ) - return false; - - wp_protect_special_option( $option ); - - if ( is_object($newvalue) ) - $newvalue = wp_clone($newvalue); - - $newvalue = sanitize_option( $option, $newvalue ); - $oldvalue = get_option( $option ); - $newvalue = apply_filters( 'pre_update_option_' . $option, $newvalue, $oldvalue ); - - // If the new and old values are the same, no need to update. - if ( $newvalue === $oldvalue ) - return false; - - if ( false === $oldvalue ) - return add_option( $option, $newvalue ); - - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { - unset( $notoptions[$option] ); - wp_cache_set( 'notoptions', $notoptions, 'options' ); - } - - $_newvalue = $newvalue; - $newvalue = maybe_serialize( $newvalue ); - - do_action( 'update_option', $option, $oldvalue, $_newvalue ); - if ( ! defined( 'WP_INSTALLING' ) ) { - $alloptions = wp_load_alloptions(); - if ( isset( $alloptions[$option] ) ) { - $alloptions[$option] = $_newvalue; - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } else { - wp_cache_set( $option, $_newvalue, 'options' ); - } - } - - $result = $wpdb->update( $wpdb->options, array( 'option_value' => $newvalue ), array( 'option_name' => $option ) ); - - if ( $result ) { - do_action( "update_option_{$option}", $oldvalue, $_newvalue ); - do_action( 'updated_option', $option, $oldvalue, $_newvalue ); - return true; - } - return false; -} - -/** - * Add a new option. - * - * You do not need to serialize values. If the value needs to be serialized, then - * it will be serialized before it is inserted into the database. Remember, - * resources can not be serialized or added as an option. - * - * You can create options without values and then add values later. Does not - * check whether the option has already been added, but does check that you - * aren't adding a protected WordPress option. Care should be taken to not name - * options the same as the ones which are protected and to not add options - * that were already added. - * - * @package WordPress - * @subpackage Option - * @since 1.0.0 - * - * @uses do_action() Calls 'add_option' hook before adding the option. - * @uses do_action() Calls 'add_option_$option' and 'added_option' hooks on success. - * - * @param string $option Name of option to add. Expected to not be SQL-escaped. - * @param mixed $value Optional. Option value, can be anything. Expected to not be SQL-escaped. - * @param mixed $deprecated Optional. Description. Not used anymore. - * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up. - * @return null returns when finished. - */ -function add_option( $option, $value = '', $deprecated = '', $autoload = 'yes' ) { - global $wpdb; - - if ( !empty( $deprecated ) ) - _deprecated_argument( __FUNCTION__, '2.3' ); - - $option = trim($option); - if ( empty($option) ) - return false; - - wp_protect_special_option( $option ); - - if ( is_object($value) ) - $value = wp_clone($value); - - $value = sanitize_option( $option, $value ); - - // Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( !is_array( $notoptions ) || !isset( $notoptions[$option] ) ) - if ( false !== get_option( $option ) ) - return; - - $_value = $value; - $value = maybe_serialize( $value ); - $autoload = ( 'no' === $autoload ) ? 'no' : 'yes'; - do_action( 'add_option', $option, $_value ); - if ( ! defined( 'WP_INSTALLING' ) ) { - if ( 'yes' == $autoload ) { - $alloptions = wp_load_alloptions(); - $alloptions[$option] = $value; - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } else { - wp_cache_set( $option, $value, 'options' ); - } - } - - // This option exists now - $notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh - if ( is_array( $notoptions ) && isset( $notoptions[$option] ) ) { - unset( $notoptions[$option] ); - wp_cache_set( 'notoptions', $notoptions, 'options' ); - } - - $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $value, $autoload ) ); - - if ( $result ) { - do_action( "add_option_{$option}", $option, $_value ); - do_action( 'added_option', $option, $_value ); - return true; - } - return false; -} - -/** - * Removes option by name. Prevents removal of protected WordPress options. - * - * @package WordPress - * @subpackage Option - * @since 1.2.0 - * - * @uses do_action() Calls 'delete_option' hook before option is deleted. - * @uses do_action() Calls 'deleted_option' and 'delete_option_$option' hooks on success. - * - * @param string $option Name of option to remove. Expected to not be SQL-escaped. - * @return bool True, if option is successfully deleted. False on failure. - */ -function delete_option( $option ) { - global $wpdb; - - wp_protect_special_option( $option ); - - // Get the ID, if no ID then return - $row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) ); - if ( is_null( $row ) ) - return false; - do_action( 'delete_option', $option ); - $result = $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->options WHERE option_name = %s", $option) ); - if ( ! defined( 'WP_INSTALLING' ) ) { - if ( 'yes' == $row->autoload ) { - $alloptions = wp_load_alloptions(); - if ( is_array( $alloptions ) && isset( $alloptions[$option] ) ) { - unset( $alloptions[$option] ); - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } - } else { - wp_cache_delete( $option, 'options' ); - } - } - if ( $result ) { - do_action( "delete_option_$option", $option ); - do_action( 'deleted_option', $option ); - return true; - } - return false; -} - -/** - * Delete a transient - * - * @since 2.8.0 - * @package WordPress - * @subpackage Transient - * - * @uses do_action() Calls 'delete_transient_$transient' hook before transient is deleted. - * @uses do_action() Calls 'deleted_transient' hook on success. - * - * @param string $transient Transient name. Expected to not be SQL-escaped. - * @return bool true if successful, false otherwise - */ -function delete_transient( $transient ) { - global $_wp_using_ext_object_cache; - - do_action( 'delete_transient_' . $transient, $transient ); - - if ( $_wp_using_ext_object_cache ) { - $result = wp_cache_delete( $transient, 'transient' ); - } else { - $option_timeout = '_transient_timeout_' . $transient; - $option = '_transient_' . $transient; - $result = delete_option( $option ); - if ( $result ) - delete_option( $option_timeout ); - } - - if ( $result ) - do_action( 'deleted_transient', $transient ); - return $result; -} - -/** - * Get the value of a transient - * - * If the transient does not exist or does not have a value, then the return value - * will be false. - * - * @uses apply_filters() Calls 'pre_transient_$transient' hook before checking the transient. - * Any value other than false will "short-circuit" the retrieval of the transient - * and return the returned value. - * @uses apply_filters() Calls 'transient_$option' hook, after checking the transient, with - * the transient value. - * - * @since 2.8.0 - * @package WordPress - * @subpackage Transient - * - * @param string $transient Transient name. Expected to not be SQL-escaped - * @return mixed Value of transient - */ -function get_transient( $transient ) { - global $_wp_using_ext_object_cache; - - $pre = apply_filters( 'pre_transient_' . $transient, false ); - if ( false !== $pre ) - return $pre; - - if ( $_wp_using_ext_object_cache ) { - $value = wp_cache_get( $transient, 'transient' ); - } else { - $transient_option = '_transient_' . $transient; - if ( ! defined( 'WP_INSTALLING' ) ) { - // If option is not in alloptions, it is not autoloaded and thus has a timeout - $alloptions = wp_load_alloptions(); - if ( !isset( $alloptions[$transient_option] ) ) { - $transient_timeout = '_transient_timeout_' . $transient; - if ( get_option( $transient_timeout ) < time() ) { - delete_option( $transient_option ); - delete_option( $transient_timeout ); + if ( $strict ) { + if ( '"' !== $data[ $length - 2 ] ) return false; - } - } - } - - $value = get_option( $transient_option ); - } - - return apply_filters( 'transient_' . $transient, $value ); -} - -/** - * Set/update the value of a transient - * - * You do not need to serialize values. If the value needs to be serialized, then - * it will be serialized before it is set. - * - * @since 2.8.0 - * @package WordPress - * @subpackage Transient - * - * @uses apply_filters() Calls 'pre_set_transient_$transient' hook to allow overwriting the - * transient value to be stored. - * @uses do_action() Calls 'set_transient_$transient' and 'setted_transient' hooks on success. - * - * @param string $transient Transient name. Expected to not be SQL-escaped. - * @param mixed $value Transient value. Expected to not be SQL-escaped. - * @param int $expiration Time until expiration in seconds, default 0 - * @return bool False if value was not set and true if value was set. - */ -function set_transient( $transient, $value, $expiration = 0 ) { - global $_wp_using_ext_object_cache; - - $value = apply_filters( 'pre_set_transient_' . $transient, $value ); - - if ( $_wp_using_ext_object_cache ) { - $result = wp_cache_set( $transient, $value, 'transient', $expiration ); - } else { - $transient_timeout = '_transient_timeout_' . $transient; - $transient = '_transient_' . $transient; - if ( false === get_option( $transient ) ) { - $autoload = 'yes'; - if ( $expiration ) { - $autoload = 'no'; - add_option( $transient_timeout, time() + $expiration, '', 'no' ); - } - $result = add_option( $transient, $value, '', $autoload ); - } else { - if ( $expiration ) - update_option( $transient_timeout, time() + $expiration ); - $result = update_option( $transient, $value ); - } - } - if ( $result ) { - do_action( 'set_transient_' . $transient ); - do_action( 'setted_transient', $transient ); - } - return $result; -} - -/** - * Saves and restores user interface settings stored in a cookie. - * - * Checks if the current user-settings cookie is updated and stores it. When no - * cookie exists (different browser used), adds the last saved cookie restoring - * the settings. - * - * @package WordPress - * @subpackage Option - * @since 2.7.0 - */ -function wp_user_settings() { - - if ( ! is_admin() ) - return; - - if ( defined('DOING_AJAX') ) - return; - - if ( ! $user = wp_get_current_user() ) - return; - - $settings = get_user_option( 'user-settings', $user->ID ); - - if ( isset( $_COOKIE['wp-settings-' . $user->ID] ) ) { - $cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE['wp-settings-' . $user->ID] ); - - if ( ! empty( $cookie ) && strpos( $cookie, '=' ) ) { - if ( $cookie == $settings ) - return; - - $last_time = (int) get_user_option( 'user-settings-time', $user->ID ); - $saved = isset( $_COOKIE['wp-settings-time-' . $user->ID]) ? preg_replace( '/[^0-9]/', '', $_COOKIE['wp-settings-time-' . $user->ID] ) : 0; - - if ( $saved > $last_time ) { - update_user_option( $user->ID, 'user-settings', $cookie, false ); - update_user_option( $user->ID, 'user-settings-time', time() - 5, false ); - return; + } elseif ( false === strpos( $data, '"' ) ) { + return false; } - } - } - - 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, $all ); + case 'a' : + case 'O' : + return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); + case 'b' : + case 'i' : + case 'd' : + $end = $strict ? '$' : ''; + return (bool) preg_match( "/^{$token}:[0-9.E-]+;$end/", $data ); } - - return $all; + return false; } /** - * Private. Set all user interface settings. + * Check whether serialized data is of string type. * - * @package WordPress - * @subpackage Option - * @since 2.8.0 + * @since 2.0.5 * - * @param unknown $all - * @return bool + * @param mixed $data Serialized data + * @return bool False if not a serialized string, true if it is. */ -function wp_set_all_user_settings($all) { - global $_updated_user_settings; - - if ( ! $user = wp_get_current_user() ) +function is_serialized_string( $data ) { + // if it isn't a string, it isn't a serialized string + if ( !is_string( $data ) ) 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); + $data = trim( $data ); + $length = strlen( $data ); + if ( $length < 4 ) + return false; + elseif ( ':' !== $data[1] ) + return false; + elseif ( ';' !== $data[$length-1] ) + return false; + elseif ( $data[0] !== 's' ) + return false; + elseif ( '"' !== $data[$length-2] ) + return false; + else + return true; } /** @@ -1027,7 +334,9 @@ function maybe_serialize( $data ) { if ( is_array( $data ) || is_object( $data ) ) return serialize( $data ); - if ( is_serialized( $data ) ) + // Double serialization is required for backward compatibility. + // See http://core.trac.wordpress.org/ticket/12930 + if ( is_serialized( $data, false ) ) return serialize( $data ); return $data; @@ -1102,71 +411,6 @@ function xmlrpc_removepostdata( $content ) { return $content; } -/** - * Open the file handle for debugging. - * - * This function is used for XMLRPC feature, but it is general purpose enough - * to be used in anywhere. - * - * @see fopen() for mode options. - * @package WordPress - * @subpackage Debug - * @since 0.71 - * @uses $debug Used for whether debugging is enabled. - * - * @param string $filename File path to debug file. - * @param string $mode Same as fopen() mode parameter. - * @return bool|resource File handle. False on failure. - */ -function debug_fopen( $filename, $mode ) { - global $debug; - if ( 1 == $debug ) { - $fp = fopen( $filename, $mode ); - return $fp; - } else { - return false; - } -} - -/** - * Write contents to the file used for debugging. - * - * Technically, this can be used to write to any file handle when the global - * $debug is set to 1 or true. - * - * @package WordPress - * @subpackage Debug - * @since 0.71 - * @uses $debug Used for whether debugging is enabled. - * - * @param resource $fp File handle for debugging file. - * @param string $string Content to write to debug file. - */ -function debug_fwrite( $fp, $string ) { - global $debug; - if ( 1 == $debug ) - fwrite( $fp, $string ); -} - -/** - * Close the debugging file handle. - * - * Technically, this can be used to close any file handle when the global $debug - * is set to 1 or true. - * - * @package WordPress - * @subpackage Debug - * @since 0.71 - * @uses $debug Used for whether debugging is enabled. - * - * @param resource $fp Debug File handle. - */ -function debug_fclose( $fp ) { - global $debug; - if ( 1 == $debug ) - fclose( $fp ); -} - /** * Check content for video and audio links to add as enclosures. * @@ -1188,9 +432,7 @@ function do_enclose( $content, $post_ID ) { //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' ); $post_links = array(); - debug_fwrite( $log, 'BEGIN ' . date( 'YmdHis', time() ) . "\n" ); $pung = get_enclosed( $post_ID ); @@ -1201,15 +443,11 @@ function do_enclose( $content, $post_ID ) { preg_match_all( "{\b http : [$any] +? (?= [$punc] * [^$any] | $)}x", $content, $post_links_temp ); - debug_fwrite( $log, 'Post contents:' ); - debug_fwrite( $log, $content . "\n" ); - foreach ( $pung as $link_test ) { if ( !in_array( $link_test, $post_links_temp[0] ) ) { // link no longer in post - $mid = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, 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 ); + $mids = $wpdb->get_col( $wpdb->prepare("SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $link_test ) . '%') ); + foreach ( $mids as $mid ) + delete_metadata_by_mid( 'post', $mid ); } } @@ -1229,8 +467,8 @@ function do_enclose( $content, $post_ID ) { 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 = $headers['content-type']; + $len = isset( $headers['content-length'] ) ? (int) $headers['content-length'] : 0; + $type = isset( $headers['content-type'] ) ? $headers['content-type'] : ''; $allowed_types = array( 'video', 'audio' ); // Check to see if we can figure out the mime type from @@ -1239,7 +477,7 @@ function do_enclose( $content, $post_ID ) { if ( false !== $url_parts ) { $extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION ); if ( !empty( $extension ) ) { - foreach ( get_allowed_mime_types( ) as $exts => $mime ) { + foreach ( wp_get_mime_types() as $exts => $mime ) { if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) { $type = $mime; break; @@ -1249,9 +487,7 @@ function do_enclose( $content, $post_ID ) { } if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) { - $meta_value = "$url\n$len\n$type\n"; - $wpdb->insert($wpdb->postmeta, array('post_id' => $post_ID, 'meta_key' => 'enclosure', 'meta_value' => $meta_value) ); - do_action( 'added_postmeta', $wpdb->insert_id, $post_ID, 'enclosure', $meta_value ); + add_post_meta( $post_ID, 'enclosure', "$url\n$len\n$mime\n" ); } } } @@ -1285,13 +521,13 @@ function wp_get_http( $url, $file_path = false, $red = 1 ) { else $options['method'] = 'GET'; - $response = wp_remote_request($url, $options); + $response = wp_safe_remote_request( $url, $options ); if ( is_wp_error( $response ) ) return false; $headers = wp_remote_retrieve_headers( $response ); - $headers['response'] = $response['response']['code']; + $headers['response'] = wp_remote_retrieve_response_code( $response ); // WP_HTTP no longer follows redirects for HEAD requests. if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) { @@ -1306,7 +542,7 @@ function wp_get_http( $url, $file_path = false, $red = 1 ) { if ( !$out_fp ) return $headers; - fwrite( $out_fp, $response['body']); + fwrite( $out_fp, wp_remote_retrieve_body( $response ) ); fclose($out_fp); clearstatcache(); @@ -1326,7 +562,7 @@ function wp_get_http_headers( $url, $deprecated = false ) { if ( !empty( $deprecated ) ) _deprecated_argument( __FUNCTION__, '2.7' ); - $response = wp_remote_head( $url ); + $response = wp_safe_remote_head( $url ); if ( is_wp_error( $response ) ) return false; @@ -1370,6 +606,36 @@ function build_query( $data ) { return _http_build_query( $data, null, '&', '', false ); } +// from php.net (modified by Mark Jaquith to behave like the native PHP5 function) +function _http_build_query($data, $prefix=null, $sep=null, $key='', $urlencode=true) { + $ret = array(); + + foreach ( (array) $data as $k => $v ) { + if ( $urlencode) + $k = urlencode($k); + if ( is_int($k) && $prefix != null ) + $k = $prefix.$k; + if ( !empty($key) ) + $k = $key . '%5B' . $k . '%5D'; + if ( $v === null ) + continue; + elseif ( $v === FALSE ) + $v = '0'; + + if ( is_array($v) || is_object($v) ) + array_push($ret,_http_build_query($v, '', $sep, $k, $urlencode)); + elseif ( $urlencode ) + array_push($ret, $k.'='.urlencode($v)); + else + array_push($ret, $k.'='.$v); + } + + if ( null === $sep ) + $sep = ini_get('arg_separator.output'); + + return implode($sep, $ret); +} + /** * Retrieve a modified URL query string. * @@ -1377,8 +643,9 @@ function build_query( $data ) { * 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. + * an empty string removes the key. Omitting oldquery_or_uri uses the $_SERVER + * value. Additional values provided are expected to be encoded appropriately + * with urlencode() or rawurlencode(). * * @since 1.5.0 * @@ -1389,16 +656,17 @@ function build_query( $data ) { */ function add_query_arg() { $ret = ''; - if ( is_array( func_get_arg(0) ) ) { - if ( @func_num_args() < 2 || false === @func_get_arg( 1 ) ) + $args = func_get_args(); + if ( is_array( $args[0] ) ) { + if ( count( $args ) < 2 || false === $args[1] ) $uri = $_SERVER['REQUEST_URI']; else - $uri = @func_get_arg( 1 ); + $uri = $args[1]; } else { - if ( @func_num_args() < 3 || false === @func_get_arg( 2 ) ) + if ( count( $args ) < 3 || false === $args[2] ) $uri = $_SERVER['REQUEST_URI']; else - $uri = @func_get_arg( 2 ); + $uri = $args[2]; } if ( $frag = strstr( $uri, '#' ) ) @@ -1406,9 +674,12 @@ function add_query_arg() { else $frag = ''; - if ( preg_match( '|^https?://|i', $uri, $matches ) ) { - $protocol = $matches[0]; - $uri = substr( $uri, strlen( $protocol ) ); + if ( 0 === stripos( $uri, 'http://' ) ) { + $protocol = 'http://'; + $uri = substr( $uri, 7 ); + } elseif ( 0 === stripos( $uri, 'https://' ) ) { + $protocol = 'https://'; + $uri = substr( $uri, 8 ); } else { $protocol = ''; } @@ -1422,7 +693,7 @@ function add_query_arg() { $base = $parts[0] . '?'; $query = $parts[1]; } - } elseif ( !empty( $protocol ) || strpos( $uri, '=' ) === false ) { + } elseif ( $protocol || strpos( $uri, '=' ) === false ) { $base = $uri . '?'; $query = ''; } else { @@ -1432,14 +703,14 @@ function add_query_arg() { wp_parse_str( $query, $qs ); $qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string - if ( is_array( func_get_arg( 0 ) ) ) { - $kayvees = func_get_arg( 0 ); + if ( is_array( $args[0] ) ) { + $kayvees = $args[0]; $qs = array_merge( $qs, $kayvees ); } else { - $qs[func_get_arg( 0 )] = func_get_arg( 1 ); + $qs[ $args[0] ] = $args[1]; } - foreach ( (array) $qs as $k => $v ) { + foreach ( $qs as $k => $v ) { if ( $v === false ) unset( $qs[$k] ); } @@ -1475,7 +746,7 @@ function remove_query_arg( $key, $query=false ) { * * @since 0.71 * - * @param array $array Array to used to walk while sanitizing contents. + * @param array $array Array to walk while sanitizing contents. * @return array Sanitized $array. */ function add_magic_quotes( $array ) { @@ -1507,12 +778,12 @@ function wp_remote_fopen( $uri ) { $options = array(); $options['timeout'] = 10; - $response = wp_remote_get( $uri, $options ); + $response = wp_safe_remote_get( $uri, $options ); if ( is_wp_error( $response ) ) return false; - return $response['body']; + return wp_remote_retrieve_body( $response ); } /** @@ -1650,7 +921,6 @@ function status_header( $header ) { 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', ); @@ -1658,6 +928,7 @@ function wp_get_nocache_headers() { if ( function_exists('apply_filters') ) { $headers = (array) apply_filters('nocache_headers', $headers); } + $headers['Last-Modified'] = false; return $headers; } @@ -1672,6 +943,23 @@ function wp_get_nocache_headers() { */ function nocache_headers() { $headers = wp_get_nocache_headers(); + + unset( $headers['Last-Modified'] ); + + // In PHP 5.3+, make sure we are not sending a Last-Modified header. + if ( function_exists( 'header_remove' ) ) { + @header_remove( 'Last-Modified' ); + } else { + // In PHP 5.2, send an empty Last-Modified header, but only as a + // last resort to override a header already sent. #WP23021 + foreach ( headers_list() as $header ) { + if ( 0 === stripos( $header, 'Last-Modified' ) ) { + $headers['Last-Modified'] = ''; + break; + } + } + } + foreach( $headers as $name => $field_value ) @header("{$name}: {$field_value}"); } @@ -1682,7 +970,7 @@ function nocache_headers() { * @since 2.1.0 */ function cache_javascript_headers() { - $expiresOffset = 864000; // 10 days + $expiresOffset = 10 * DAY_IN_SECONDS; header( "Content-Type: text/javascript; charset=" . get_bloginfo( 'charset' ) ); header( "Vary: Accept-Encoding" ); // Handle proxies header( "Expires: " . gmdate( "D, d M Y H:i:s", time() + $expiresOffset ) . " GMT" ); @@ -1754,7 +1042,7 @@ function do_feed_rdf() { } /** - * Load the RSS 1.0 Feed Template + * Load the RSS 1.0 Feed Template. * * @since 2.1.0 */ @@ -1791,27 +1079,28 @@ function do_feed_atom( $for_comments ) { } /** - * Display the robot.txt file content. + * Display the robots.txt file content. * * The echo content should be with usage of the permalinks or for creating the - * robot.txt file. + * robots.txt file. * * @since 2.1.0 - * @uses do_action() Calls 'do_robotstxt' hook for displaying robot.txt rules. + * @uses do_action() Calls 'do_robotstxt' hook for displaying robots.txt rules. */ function do_robots() { header( 'Content-Type: text/plain; charset=utf-8' ); do_action( 'do_robotstxt' ); - $output = ''; + $output = "User-agent: *\n"; $public = get_option( 'blog_public' ); - if ( '0' == $public ) { - $output .= "User-agent: *\n"; + if ( '0' == $public ) { $output .= "Disallow: /\n"; } else { - $output .= "User-agent: *\n"; - $output .= "Disallow:\n"; + $site_url = parse_url( site_url() ); + $path = ( !empty( $site_url['path'] ) ) ? $site_url['path'] : ''; + $output .= "Disallow: $path/wp-admin/\n"; + $output .= "Disallow: $path/wp-includes/\n"; } echo apply_filters('robots_txt', $output, $public); @@ -1855,32 +1144,37 @@ function is_blog_installed() { if ( $installed ) return true; + // If visiting repair.php, return true and let it take over. + if ( defined( 'WP_REPAIRING' ) ) + return true; + $suppress = $wpdb->suppress_errors(); - $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. + // Loop over the WP tables. If none exist, then scratch install is allowed. // If one or more exist, suggest table repair since we got here because the options // table could not be accessed. + $wp_tables = $wpdb->tables(); foreach ( $wp_tables as $table ) { - // 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; + // 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 repaired.'/*/WP_I18N_NO_TABLES*/, 'maint/repair.php?referrer=is_blog_installed' ); - dead_db(); - } + if ( ! $wpdb->get_results( "DESCRIBE $table;" ) ) + continue; + + // One or more tables exist. We are insane. + + wp_load_translations_early(); + + // Die with a DB error. + $wpdb->error = sprintf( __( 'One or more database tables are unavailable. The database may need to be repaired.' ), 'maint/repair.php?referrer=is_blog_installed' ); + dead_db(); } + $wpdb->suppress_errors( $suppress ); + wp_cache_set( 'is_blog_installed', false ); return false; @@ -1893,13 +1187,14 @@ function is_blog_installed() { * @subpackage Security * @since 2.0.4 * - * @param string $actionurl URL to add nonce action - * @param string $action Optional. Nonce action name + * @param string $actionurl URL to add nonce action. + * @param string $action Optional. Nonce action name. + * @param string $name Optional. Nonce name. * @return string URL with nonce action added. */ -function wp_nonce_url( $actionurl, $action = -1 ) { +function wp_nonce_url( $actionurl, $action = -1, $name = '_wpnonce' ) { $actionurl = str_replace( '&', '&', $actionurl ); - return esc_html( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) ); + return esc_html( add_query_arg( $name, wp_create_nonce( $action ), $actionurl ) ); } /** @@ -1910,11 +1205,6 @@ function wp_nonce_url( $actionurl, $action = -1 ) { * 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 @@ -1938,11 +1228,12 @@ function wp_nonce_url( $actionurl, $action = -1 ) { function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) { $name = esc_attr( $name ); $nonce_field = ''; - if ( $echo ) - echo $nonce_field; if ( $referer ) - wp_referer_field( $echo ); + $nonce_field .= wp_referer_field( false ); + + if ( $echo ) + echo $nonce_field; return $nonce_field; } @@ -1961,8 +1252,7 @@ function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $ec * @return string Referer field. */ function wp_referer_field( $echo = true ) { - $ref = esc_attr( $_SERVER['REQUEST_URI'] ); - $referer_field = ''; + $referer_field = ''; if ( $echo ) echo $referer_field; @@ -1985,16 +1275,18 @@ function wp_referer_field( $echo = true ) { * @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 = ''; + if ( ! $ref = wp_get_original_referer() ) { + $ref = 'previous' == $jump_back_to ? wp_get_referer() : wp_unslash( $_SERVER['REQUEST_URI'] ); + } + $orig_referer_field = ''; if ( $echo ) echo $orig_referer_field; return $orig_referer_field; } /** - * Retrieve referer from '_wp_http_referer', HTTP referer, or current page respectively. + * Retrieve referer from '_wp_http_referer' or HTTP referer. If it's the same + * as the current request URL, will return false. * * @package WordPress * @subpackage Security @@ -2003,14 +1295,14 @@ function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) { * @return string|bool False on failure. Referer URL on success. */ function wp_get_referer() { - $ref = ''; + $ref = false; if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) - $ref = $_REQUEST['_wp_http_referer']; + $ref = wp_unslash( $_REQUEST['_wp_http_referer'] ); else if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) - $ref = $_SERVER['HTTP_REFERER']; + $ref = wp_unslash( $_SERVER['HTTP_REFERER'] ); - if ( $ref !== $_SERVER['REQUEST_URI'] ) - return $ref; + if ( $ref && $ref !== wp_unslash( $_SERVER['REQUEST_URI'] ) ) + return wp_validate_redirect( $ref, false ); return false; } @@ -2025,7 +1317,7 @@ function wp_get_referer() { */ function wp_get_original_referer() { if ( !empty( $_REQUEST['_wp_original_http_referer'] ) ) - return $_REQUEST['_wp_original_http_referer']; + return wp_validate_redirect( wp_unslash( $_REQUEST['_wp_original_http_referer'] ), false ); return false; } @@ -2040,9 +1332,21 @@ function wp_get_original_referer() { * @return bool Whether the path was created. True if path already exists. */ function wp_mkdir_p( $target ) { + $wrapper = null; + + // strip the protocol + if( wp_is_stream( $target ) ) { + list( $wrapper, $target ) = explode( '://', $target, 2 ); + } + // from php.net/mkdir user contributed notes $target = str_replace( '//', '/', $target ); + // put the wrapper back on the target + if( $wrapper !== null ) { + $target = $wrapper . '://' . $target; + } + // safe mode fails with a trailing slash under certain PHP versions. $target = rtrim($target, '/'); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency. if ( empty($target) ) @@ -2089,7 +1393,7 @@ function path_is_absolute( $path ) { return true; // a path starting with / or \ is absolute; anything else is relative - return (bool) preg_match('#^[/\\\\]#', $path); + return ( $path[0] == '/' || $path[0] == '\\' ); } /** @@ -2110,6 +1414,100 @@ function path_join( $base, $path ) { return rtrim($base, '/') . '/' . ltrim($path, '/'); } +/** + * Determines a writable directory for temporary files. + * Function's preference is the return value of sys_get_temp_dir(), + * followed by your PHP temporary upload directory, followed by WP_CONTENT_DIR, + * before finally defaulting to /tmp/ + * + * In the event that this function does not find a writable location, + * It may be overridden by the WP_TEMP_DIR constant in + * your wp-config.php file. + * + * @since 2.5.0 + * + * @return string Writable temporary directory + */ +function get_temp_dir() { + static $temp; + if ( defined('WP_TEMP_DIR') ) + return trailingslashit(WP_TEMP_DIR); + + if ( $temp ) + return trailingslashit( rtrim( $temp, '\\' ) ); + + if ( function_exists('sys_get_temp_dir') ) { + $temp = sys_get_temp_dir(); + if ( @is_dir( $temp ) && wp_is_writable( $temp ) ) + return trailingslashit( rtrim( $temp, '\\' ) ); + } + + $temp = ini_get('upload_tmp_dir'); + if ( is_dir( $temp ) && wp_is_writable( $temp ) ) + return trailingslashit( rtrim( $temp, '\\' ) ); + + $temp = WP_CONTENT_DIR . '/'; + if ( is_dir( $temp ) && wp_is_writable( $temp ) ) + return $temp; + + $temp = '/tmp/'; + return $temp; +} + +/** + * Determine if a directory is writable. + * + * This function is used to work around certain ACL issues + * in PHP primarily affecting Windows Servers. + * + * @see win_is_writable() + * + * @since 3.6.0 + * + * @param string $path + * @return bool + */ +function wp_is_writable( $path ) { + if ( 'WIN' === strtoupper( substr( PHP_OS, 0, 3 ) ) ) + return win_is_writable( $path ); + else + return @is_writable( $path ); +} + +/** + * Workaround for Windows bug in is_writable() function + * + * PHP has issues with Windows ACL's for determine if a + * directory is writable or not, this works around them by + * checking the ability to open files rather than relying + * upon PHP to interprate the OS ACL. + * + * @link http://bugs.php.net/bug.php?id=27609 + * @link http://bugs.php.net/bug.php?id=30931 + * + * @since 2.8.0 + * + * @param string $path + * @return bool + */ +function win_is_writable( $path ) { + + if ( $path[strlen( $path ) - 1] == '/' ) // if it looks like a directory, check a random file within the directory + return win_is_writable( $path . uniqid( mt_rand() ) . '.tmp'); + else if ( is_dir( $path ) ) // If it's a directory (and not a file) check a random file within the directory + return win_is_writable( $path . '/' . uniqid( mt_rand() ) . '.tmp' ); + + // check tmp file for read/write capabilities + $should_delete_tmp_file = !file_exists( $path ); + $f = @fopen( $path, 'a' ); + if ( $f === false ) + return false; + fclose( $f ); + if ( $should_delete_tmp_file ) + unlink( $path ); + return true; +} + /** * Get an array containing the current upload directory's path and url. * @@ -2144,21 +1542,16 @@ function path_join( $base, $path ) { * @return array See above for description. */ function wp_upload_dir( $time = null ) { - global $switched; $siteurl = get_option( 'siteurl' ); - $upload_path = get_option( 'upload_path' ); - $upload_path = trim($upload_path); - $main_override = is_multisite() && defined( 'MULTISITE' ) && is_main_site(); - if ( empty($upload_path) ) { + $upload_path = trim( get_option( 'upload_path' ) ); + + if ( empty( $upload_path ) || 'wp-content/uploads' == $upload_path ) { $dir = WP_CONTENT_DIR . '/uploads'; + } elseif ( 0 !== strpos( $upload_path, ABSPATH ) ) { + // $dir is absolute, $upload_path is (maybe) relative to ABSPATH + $dir = path_join( ABSPATH, $upload_path ); } else { $dir = $upload_path; - if ( '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' ) ) { @@ -2168,19 +1561,54 @@ function wp_upload_dir( $time = null ) { $url = trailingslashit( $siteurl ) . $upload_path; } - if ( defined('UPLOADS') && !$main_override && ( !isset( $switched ) || $switched === false ) ) { + // Obey the value of UPLOADS. This happens as long as ms-files rewriting is disabled. + // We also sometimes obey UPLOADS when rewriting is enabled -- see the next block. + if ( defined( 'UPLOADS' ) && ! ( is_multisite() && get_site_option( 'ms_files_rewriting' ) ) ) { $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 ); + // If multisite (and if not the main site in a post-MU network) + if ( is_multisite() && ! ( is_main_site() && defined( 'MULTISITE' ) ) ) { + + if ( ! get_site_option( 'ms_files_rewriting' ) ) { + // If ms-files rewriting is disabled (networks created post-3.5), it is fairly straightforward: + // Append sites/%d if we're not on the main site (for post-MU networks). (The extra directory + // prevents a four-digit ID from conflicting with a year-based directory for the main site. + // But if a MU-era network has disabled ms-files rewriting manually, they don't need the extra + // directory, as they never had wp-content/uploads for the main site.) + + if ( defined( 'MULTISITE' ) ) + $ms_dir = '/sites/' . get_current_blog_id(); + else + $ms_dir = '/' . get_current_blog_id(); + + $dir .= $ms_dir; + $url .= $ms_dir; + + } elseif ( defined( 'UPLOADS' ) && ! ms_is_switched() ) { + // Handle the old-form ms-files.php rewriting if the network still has that enabled. + // When ms-files rewriting is enabled, then we only listen to UPLOADS when: + // 1) we are not on the main site in a post-MU network, + // as wp-content/uploads is used there, and + // 2) we are not switched, as ms_upload_constants() hardcodes + // these constants to reflect the original blog ID. + // + // Rather than UPLOADS, we actually use BLOGUPLOADDIR if it is set, as it is absolute. + // (And it will be set, see ms_upload_constants().) Otherwise, UPLOADS can be used, as + // as it is relative to ABSPATH. For the final piece: when UPLOADS is used with ms-files + // rewriting in multisite, the resulting URL is /files. (#WP22702 for background.) + + if ( defined( 'BLOGUPLOADDIR' ) ) + $dir = untrailingslashit( BLOGUPLOADDIR ); + else + $dir = ABSPATH . UPLOADS; + $url = trailingslashit( $siteurl ) . 'files'; + } } - $bdir = $dir; - $burl = $url; + $basedir = $dir; + $baseurl = $url; $subdir = ''; if ( get_option( 'uploads_use_yearmonth_folders' ) ) { @@ -2195,12 +1623,25 @@ function wp_upload_dir( $time = null ) { $dir .= $subdir; $url .= $subdir; - $uploads = apply_filters( 'upload_dir', array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'basedir' => $bdir, 'baseurl' => $burl, 'error' => false ) ); + $uploads = apply_filters( 'upload_dir', + array( + 'path' => $dir, + 'url' => $url, + 'subdir' => $subdir, + 'basedir' => $basedir, + 'baseurl' => $baseurl, + 'error' => false, + ) ); // Make sure we have an uploads dir if ( ! wp_mkdir_p( $uploads['path'] ) ) { - $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $uploads['path'] ); - return array( 'error' => $message ); + if ( 0 === strpos( $uploads['basedir'], ABSPATH ) ) + $error_path = str_replace( ABSPATH, '', $uploads['basedir'] ) . $uploads['subdir']; + else + $error_path = basename( $uploads['basedir'] ) . $uploads['subdir']; + + $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $error_path ); + $uploads['error'] = $message; } return $uploads; @@ -2299,7 +1740,7 @@ function wp_upload_bits( $name, $deprecated, $bits, $time = null ) { return array( 'error' => __( 'Empty filename' ) ); $wp_filetype = wp_check_filetype( $name ); - if ( !$wp_filetype['ext'] ) + if ( ! $wp_filetype['ext'] && ! current_user_can( 'unfiltered_upload' ) ) return array( 'error' => __( 'Invalid file type' ) ); $upload = wp_upload_dir( $time ); @@ -2317,7 +1758,12 @@ function wp_upload_bits( $name, $deprecated, $bits, $time = null ) { $new_file = $upload['path'] . "/$filename"; if ( ! wp_mkdir_p( dirname( $new_file ) ) ) { - $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), dirname( $new_file ) ); + if ( 0 === strpos( $upload['basedir'], ABSPATH ) ) + $error_path = str_replace( ABSPATH, '', $upload['basedir'] ) . $upload['subdir']; + else + $error_path = basename( $upload['basedir'] ) . $upload['subdir']; + + $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $error_path ); return array( 'error' => $message ); } @@ -2354,13 +1800,13 @@ function wp_upload_bits( $name, $deprecated, $bits, $time = null ) { */ function wp_ext2type( $ext ) { $ext2type = apply_filters( 'ext2type', array( - 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ), - 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ), - 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ), - 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsb', 'xlsm' ), - 'interactive' => array( 'key', 'ppt', 'pptx', 'pptm', 'odp', 'swf' ), + 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ), + 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ), + 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ), + 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsm', 'xlsb' ), + 'interactive' => array( 'swf', 'key', 'ppt', 'pptx', 'pptm', 'pps', 'ppsx', 'ppsm', 'sldx', 'sldm', 'odp' ), 'text' => array( 'asc', 'csv', 'tsv', 'txt' ), - 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip' ), + 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ), 'code' => array( 'css', 'htm', 'html', 'php', 'js' ), )); foreach ( $ext2type as $type => $exts ) @@ -2466,178 +1912,133 @@ function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) { } /** - * Retrieve list of allowed mime types and file extensions. + * Retrieve list of mime types and file extensions. * - * @since 2.8.6 + * @since 3.5.0 + * + * @uses apply_filters() Calls 'mime_types' on returned array. This filter should + * be used to add types, not remove them. To remove types use the upload_mimes filter. * * @return array Array of mime types keyed by the file extension regex corresponding to those types. */ -function get_allowed_mime_types() { - static $mimes = false; - - if ( !$mimes ) { - // Accepted MIME types are set here as PCRE unless provided. - $mimes = apply_filters( 'upload_mimes', array( - 'jpg|jpeg|jpe' => 'image/jpeg', - 'gif' => 'image/gif', - 'png' => 'image/png', - 'bmp' => 'image/bmp', - 'tif|tiff' => 'image/tiff', - 'ico' => 'image/x-icon', - 'asf|asx|wax|wmv|wmx' => 'video/asf', - 'avi' => 'video/avi', - 'divx' => 'video/divx', - 'flv' => 'video/x-flv', - 'mov|qt' => 'video/quicktime', - 'mpeg|mpg|mpe' => 'video/mpeg', - 'txt|asc|c|cc|h' => 'text/plain', - 'csv' => 'text/csv', - 'tsv' => 'text/tab-separated-values', - 'rtx' => 'text/richtext', - 'css' => 'text/css', - 'htm|html' => 'text/html', - 'mp3|m4a|m4b' => 'audio/mpeg', - 'mp4|m4v' => 'video/mp4', - 'ra|ram' => 'audio/x-realaudio', - 'wav' => 'audio/wav', - 'ogg|oga' => 'audio/ogg', - 'ogv' => 'video/ogg', - 'mid|midi' => 'audio/midi', - 'wma' => 'audio/wma', - 'mka' => 'audio/x-matroska', - 'mkv' => 'video/x-matroska', - 'rtf' => 'application/rtf', - 'js' => 'application/javascript', - 'pdf' => 'application/pdf', - 'doc|docx' => 'application/msword', - 'pot|pps|ppt|pptx|ppam|pptm|sldm|ppsm|potm' => 'application/vnd.ms-powerpoint', - 'wri' => 'application/vnd.ms-write', - 'xla|xls|xlsx|xlt|xlw|xlam|xlsb|xlsm|xltm' => 'application/vnd.ms-excel', - 'mdb' => 'application/vnd.ms-access', - 'mpp' => 'application/vnd.ms-project', - 'docm|dotm' => 'application/vnd.ms-word', - 'pptx|sldx|ppsx|potx' => 'application/vnd.openxmlformats-officedocument.presentationml', - 'xlsx|xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml', - 'docx|dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml', - 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote', - 'swf' => 'application/x-shockwave-flash', - 'class' => 'application/java', - 'tar' => 'application/x-tar', - 'zip' => 'application/zip', - 'gz|gzip' => 'application/x-gzip', - 'exe' => 'application/x-msdownload', - // openoffice formats - 'odt' => 'application/vnd.oasis.opendocument.text', - 'odp' => 'application/vnd.oasis.opendocument.presentation', - 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', - 'odg' => 'application/vnd.oasis.opendocument.graphics', - 'odc' => 'application/vnd.oasis.opendocument.chart', - 'odb' => 'application/vnd.oasis.opendocument.database', - 'odf' => 'application/vnd.oasis.opendocument.formula', - // wordperfect formats - 'wp|wpd' => 'application/wordperfect', - ) ); - } - - return $mimes; +function wp_get_mime_types() { + // Accepted MIME types are set here as PCRE unless provided. + return apply_filters( 'mime_types', array( + // Image formats + 'jpg|jpeg|jpe' => 'image/jpeg', + 'gif' => 'image/gif', + 'png' => 'image/png', + 'bmp' => 'image/bmp', + 'tif|tiff' => 'image/tiff', + 'ico' => 'image/x-icon', + // Video formats + 'asf|asx' => 'video/x-ms-asf', + 'wmv' => 'video/x-ms-wmv', + 'wmx' => 'video/x-ms-wmx', + 'wm' => 'video/x-ms-wm', + 'avi' => 'video/avi', + 'divx' => 'video/divx', + 'flv' => 'video/x-flv', + 'mov|qt' => 'video/quicktime', + 'mpeg|mpg|mpe' => 'video/mpeg', + 'mp4|m4v' => 'video/mp4', + 'ogv' => 'video/ogg', + 'webm' => 'video/webm', + 'mkv' => 'video/x-matroska', + // Text formats + 'txt|asc|c|cc|h' => 'text/plain', + 'csv' => 'text/csv', + 'tsv' => 'text/tab-separated-values', + 'ics' => 'text/calendar', + 'rtx' => 'text/richtext', + 'css' => 'text/css', + 'htm|html' => 'text/html', + // Audio formats + 'mp3|m4a|m4b' => 'audio/mpeg', + 'ra|ram' => 'audio/x-realaudio', + 'wav' => 'audio/wav', + 'ogg|oga' => 'audio/ogg', + 'mid|midi' => 'audio/midi', + 'wma' => 'audio/x-ms-wma', + 'wax' => 'audio/x-ms-wax', + 'mka' => 'audio/x-matroska', + // Misc application formats + 'rtf' => 'application/rtf', + 'js' => 'application/javascript', + 'pdf' => 'application/pdf', + 'swf' => 'application/x-shockwave-flash', + 'class' => 'application/java', + 'tar' => 'application/x-tar', + 'zip' => 'application/zip', + 'gz|gzip' => 'application/x-gzip', + 'rar' => 'application/rar', + '7z' => 'application/x-7z-compressed', + 'exe' => 'application/x-msdownload', + // MS Office formats + 'doc' => 'application/msword', + 'pot|pps|ppt' => 'application/vnd.ms-powerpoint', + 'wri' => 'application/vnd.ms-write', + 'xla|xls|xlt|xlw' => 'application/vnd.ms-excel', + 'mdb' => 'application/vnd.ms-access', + 'mpp' => 'application/vnd.ms-project', + 'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document', + 'docm' => 'application/vnd.ms-word.document.macroEnabled.12', + 'dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.template', + 'dotm' => 'application/vnd.ms-word.template.macroEnabled.12', + 'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', + 'xlsm' => 'application/vnd.ms-excel.sheet.macroEnabled.12', + 'xlsb' => 'application/vnd.ms-excel.sheet.binary.macroEnabled.12', + 'xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.template', + 'xltm' => 'application/vnd.ms-excel.template.macroEnabled.12', + 'xlam' => 'application/vnd.ms-excel.addin.macroEnabled.12', + 'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation', + 'pptm' => 'application/vnd.ms-powerpoint.presentation.macroEnabled.12', + 'ppsx' => 'application/vnd.openxmlformats-officedocument.presentationml.slideshow', + 'ppsm' => 'application/vnd.ms-powerpoint.slideshow.macroEnabled.12', + 'potx' => 'application/vnd.openxmlformats-officedocument.presentationml.template', + 'potm' => 'application/vnd.ms-powerpoint.template.macroEnabled.12', + 'ppam' => 'application/vnd.ms-powerpoint.addin.macroEnabled.12', + 'sldx' => 'application/vnd.openxmlformats-officedocument.presentationml.slide', + 'sldm' => 'application/vnd.ms-powerpoint.slide.macroEnabled.12', + 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote', + // OpenOffice formats + 'odt' => 'application/vnd.oasis.opendocument.text', + 'odp' => 'application/vnd.oasis.opendocument.presentation', + 'ods' => 'application/vnd.oasis.opendocument.spreadsheet', + 'odg' => 'application/vnd.oasis.opendocument.graphics', + 'odc' => 'application/vnd.oasis.opendocument.chart', + 'odb' => 'application/vnd.oasis.opendocument.database', + 'odf' => 'application/vnd.oasis.opendocument.formula', + // WordPerfect formats + 'wp|wpd' => 'application/wordperfect', + // iWork formats + 'key' => 'application/vnd.apple.keynote', + 'numbers' => 'application/vnd.apple.numbers', + 'pages' => 'application/vnd.apple.pages', + ) ); } - /** - * 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. + * Retrieve list of allowed mime types and file extensions. * - * 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). + * @since 2.8.6 * - * @package WordPress - * @subpackage Security - * @since 2.0.4 + * @uses apply_filters() Calls 'upload_mimes' on returned array + * @uses wp_get_upload_mime_types() to fetch the list of mime types * - * @param string $action Nonce action. - * @return string Are you sure message. + * @param int|WP_User $user Optional. User to check. Defaults to current user. + * @return array Array of mime types keyed by the file extension regex corresponding to those types. */ -function wp_explain_nonce( $action ) { - if ( $action !== -1 && preg_match( '/([a-z]+)-([a-z]+)(_(.+))?/', $action, $matches ) ) { - $verb = $matches[1]; - $noun = $matches[2]; - - $trans = array(); - $trans['update']['attachment'] = array( __( 'Your attempt to edit this attachment: “%s” has failed.' ), 'get_the_title' ); - - $trans['add']['category'] = array( __( 'Your attempt to add this category has failed.' ), false ); - $trans['delete']['category'] = array( __( 'Your attempt to delete this category: “%s” has failed.' ), 'get_cat_name' ); - $trans['update']['category'] = array( __( 'Your attempt to edit this category: “%s” has failed.' ), 'get_cat_name' ); - - $trans['delete']['comment'] = array( __( 'Your attempt to delete this comment: “%s” has failed.' ), 'use_id' ); - $trans['unapprove']['comment'] = array( __( 'Your attempt to unapprove this comment: “%s” has failed.' ), 'use_id' ); - $trans['approve']['comment'] = array( __( 'Your attempt to approve this comment: “%s” has failed.' ), 'use_id' ); - $trans['update']['comment'] = array( __( 'Your attempt to edit this comment: “%s” has failed.' ), 'use_id' ); - $trans['bulk']['comments'] = array( __( 'Your attempt to bulk modify comments has failed.' ), false ); - $trans['moderate']['comments'] = array( __( 'Your attempt to moderate comments has failed.' ), false ); - - $trans['add']['bookmark'] = array( __( 'Your attempt to add this link has failed.' ), false ); - $trans['delete']['bookmark'] = array( __( 'Your attempt to delete this link: “%s” has failed.' ), 'use_id' ); - $trans['update']['bookmark'] = array( __( 'Your attempt to edit this link: “%s” has failed.' ), 'use_id' ); - $trans['bulk']['bookmarks'] = array( __( 'Your attempt to bulk modify links has failed.' ), false ); - - $trans['add']['page'] = array( __( 'Your attempt to add this page has failed.' ), false ); - $trans['delete']['page'] = array( __( 'Your attempt to delete this page: “%s” has failed.' ), 'get_the_title' ); - $trans['update']['page'] = array( __( 'Your attempt to edit this page: “%s” has failed.' ), 'get_the_title' ); - - $trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: “%s” has failed.' ), 'use_id' ); - $trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: “%s” has failed.' ), 'use_id' ); - $trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: “%s” has failed.' ), 'use_id' ); - $trans['upgrade']['plugin'] = array( __( 'Your attempt to 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['add']['user'] = array( __( 'Your attempt to add this user has failed.' ), false ); - $trans['delete']['users'] = array( __( 'Your attempt to delete users has failed.' ), false ); - $trans['bulk']['users'] = array( __( 'Your attempt to bulk modify users has failed.' ), false ); - $trans['update']['user'] = array( __( 'Your attempt to edit this user: “%s” has failed.' ), 'get_the_author_meta', 'display_name' ); - $trans['update']['profile'] = array( __( 'Your attempt to modify the profile for: “%s” has failed.' ), 'get_the_author_meta', 'display_name' ); - - $trans['update']['options'] = array( __( 'Your attempt to edit your settings has failed.' ), false ); - $trans['update']['permalink'] = array( __( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' ); - $trans['edit']['file'] = array( __( 'Your attempt to edit this file: “%s” has failed.' ), 'use_id' ); - $trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: “%s” has failed.' ), 'use_id' ); - $trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: “%s” has failed.' ), 'use_id' ); - - $trans['log']['out'] = array( sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'sitename' ) ), false ); - - if ( isset( $trans[$verb][$noun] ) ) { - if ( !empty( $trans[$verb][$noun][1] ) ) { - $lookup = $trans[$verb][$noun][1]; - if ( isset($trans[$verb][$noun][2]) ) - $lookup_value = $trans[$verb][$noun][2]; - $object = $matches[4]; - if ( 'use_id' != $lookup ) { - if ( isset( $lookup_value ) ) - $object = call_user_func( $lookup, $lookup_value, $object ); - else - $object = call_user_func( $lookup, $object ); - } - return sprintf( $trans[$verb][$noun][0], esc_html($object) ); - } else { - return $trans[$verb][$noun][0]; - } - } +function get_allowed_mime_types( $user = null ) { + $t = wp_get_mime_types(); - 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?' ) ); - } + unset( $t['swf'], $t['exe'] ); + if ( function_exists( 'current_user_can' ) ) + $unfiltered = $user ? user_can( $user, 'unfiltered_html' ) : current_user_can( 'unfiltered_html' ); + + if ( empty( $unfiltered ) ) + unset( $t['htm|html'] ); + + return apply_filters( 'upload_mimes', $t, $user ); } /** @@ -2654,16 +2055,18 @@ function wp_explain_nonce( $action ) { */ function wp_nonce_ays( $action ) { $title = __( 'WordPress Failure Notice' ); - $html = esc_html( wp_explain_nonce( $action ) ); - if ( 'log-out' == $action ) - $html .= "

" . sprintf( __( "Do you really want to log out?"), wp_logout_url() ); - elseif ( wp_get_referer() ) - $html .= "

" . __( 'Please try again.' ) . ""; + if ( 'log-out' == $action ) { + $html = sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'name' ) ) . '

'; + $html .= sprintf( __( "Do you really want to log out?"), wp_logout_url() ); + } else { + $html = __( 'Are you sure you want to do this?' ); + if ( wp_get_referer() ) + $html .= "

" . __( 'Please try again.' ) . ""; + } wp_die( $html, $title, array('response' => 403) ); } - /** * Kill WordPress execution and display HTML message with error message. * @@ -2671,23 +2074,21 @@ function wp_nonce_ays( $action ) { * 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. + * as possible silently. * * @since 2.0.4 * * @param string $message Error message. * @param string $title Error title. - * @param string|array $args Optional arguements to control behaviour. + * @param string|array $args Optional arguments to control behavior. */ -function wp_die( $message, $title = '', $args = array() ) { +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'; - } + $function = apply_filters( 'wp_die_ajax_handler', '_ajax_wp_die_handler' ); + elseif ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) + $function = apply_filters( 'wp_die_xmlrpc_handler', '_xmlrpc_wp_die_handler' ); + else + $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' ); call_user_func( $function, $message, $title, $args ); } @@ -2703,7 +2104,7 @@ function wp_die( $message, $title = '', $args = array() ) { * * @param string $message Error message. * @param string $title Error title. - * @param string|array $args Optional arguements to control behaviour. + * @param string|array $args Optional arguments to control behavior. */ function _default_wp_die_handler( $message, $title = '', $args = array() ) { $defaults = array( 'response' => 500 ); @@ -2735,59 +2136,269 @@ function _default_wp_die_handler( $message, $title = '', $args = array() ) { if ( isset( $r['back_link'] ) && $r['back_link'] ) { $back_text = $have_gettext? __('« Back') : '« Back'; - $message .= "\n

$back_text

"; + $message .= "\n

$back_text

"; + } + + if ( ! did_action( 'admin_head' ) ) : + if ( !headers_sent() ) { + status_header( $r['response'] ); + nocache_headers(); + header( 'Content-Type: text/html; charset=utf-8' ); + } + + if ( empty($title) ) + $title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error'; + + $text_direction = 'ltr'; + if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] ) + $text_direction = 'rtl'; + elseif ( function_exists( 'is_rtl' ) && is_rtl() ) + $text_direction = 'rtl'; +?> + + +> + + + <?php echo $title ?> + + + + + + + + 500 ); + + $r = wp_parse_args($args, $defaults); + + if ( $wp_xmlrpc_server ) { + $error = new IXR_Error( $r['response'] , $message); + $wp_xmlrpc_server->output( $error->getXml() ); } + die(); +} + +/** + * Kill WordPress ajax execution. + * + * This is the handler for wp_die when processing Ajax requests. + * + * @since 3.4.0 + * @access private + * + * @param string $message Optional. Response to print. + */ +function _ajax_wp_die_handler( $message = '' ) { + if ( is_scalar( $message ) ) + die( (string) $message ); + die( '0' ); +} + +/** + * Kill WordPress execution. + * + * This is the handler for wp_die when processing APP requests. + * + * @since 3.4.0 + * @access private + * + * @param string $message Optional. Response to print. + */ +function _scalar_wp_die_handler( $message = '' ) { + if ( is_scalar( $message ) ) + die( (string) $message ); + die(); +} - if ( defined( 'WP_SITEURL' ) && '' != WP_SITEURL ) - $admin_dir = WP_SITEURL . '/wp-admin/'; - elseif ( function_exists( 'get_bloginfo' ) && '' != get_bloginfo( 'wpurl' ) ) - $admin_dir = get_bloginfo( 'wpurl' ) . '/wp-admin/'; - elseif ( strpos( $_SERVER['PHP_SELF'], 'wp-admin' ) !== false ) - $admin_dir = ''; +/** + * Send a JSON response back to an Ajax request. + * + * @since 3.5.0 + * + * @param mixed $response Variable (usually an array or object) to encode as JSON, then print and die. + */ +function wp_send_json( $response ) { + @header( 'Content-Type: application/json; charset=' . get_option( 'blog_charset' ) ); + echo json_encode( $response ); + if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) + wp_die(); else - $admin_dir = 'wp-admin/'; + die; +} - if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) : - if ( !headers_sent() ) { - status_header( $r['response'] ); - nocache_headers(); - header( 'Content-Type: text/html; charset=utf-8' ); - } +/** + * Send a JSON response back to an Ajax request, indicating success. + * + * @since 3.5.0 + * + * @param mixed $data Data to encode as JSON, then print and die. + */ +function wp_send_json_success( $data = null ) { + $response = array( 'success' => true ); - if ( empty($title) ) - $title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error'; + if ( isset( $data ) ) + $response['data'] = $data; - $text_direction = 'ltr'; - if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] ) - $text_direction = 'rtl'; - elseif ( function_exists( 'is_rtl' ) && is_rtl() ) - $text_direction = 'rtl'; -?> - - -> - - - <?php echo $title ?> - - - - - - - - - - - false ); + + if ( isset( $data ) ) + $response['data'] = $data; + + wp_send_json( $response ); } /** * Retrieve the WordPress home page URL. * - * If the constant named 'WP_HOME' exists, then it willl be used and returned by + * If the constant named 'WP_HOME' exists, then it will be used and returned by * the function. This can be used to counter the redirection on your local * development environment. * @@ -2800,7 +2411,7 @@ if ( 'rtl' == $text_direction ) : ?> */ function _config_wp_home( $url = '' ) { if ( defined( 'WP_HOME' ) ) - return WP_HOME; + return untrailingslashit( WP_HOME ); return $url; } @@ -2820,7 +2431,7 @@ function _config_wp_home( $url = '' ) { */ function _config_wp_siteurl( $url = '' ) { if ( defined( 'WP_SITEURL' ) ) - return WP_SITEURL; + return untrailingslashit( WP_SITEURL ); return $url; } @@ -2851,7 +2462,6 @@ function _mce_set_direction( $input ) { return $input; } - /** * Convert smiley code to the icon graphic file equivalent. * @@ -2913,7 +2523,8 @@ function smilies_init() { ':-x' => 'icon_mad.gif', ':-|' => 'icon_neutral.gif', ';-)' => 'icon_wink.gif', - '8)' => 'icon_cool.gif', + // This one transformation breaks regular text with frequency. + // '8)' => 'icon_cool.gif', '8O' => 'icon_eek.gif', ':(' => 'icon_sad.gif', ':)' => 'icon_smile.gif', @@ -2989,7 +2600,7 @@ function wp_parse_args( $args, $defaults = '' ) { } /** - * Clean up an array, comma- or space-separated list of IDs + * Clean up an array, comma- or space-separated list of IDs. * * @since 3.0.0 * @@ -3004,7 +2615,7 @@ function wp_parse_id_list( $list ) { } /** - * Extract a slice of an array, given a list of keys + * Extract a slice of an array, given a list of keys. * * @since 3.1.0 * @@ -3022,7 +2633,7 @@ function wp_array_slice_assoc( $array, $keys ) { } /** - * Filters a list of objects, based on a set of key => value arguments + * Filters a list of objects, based on a set of key => value arguments. * * @since 3.0.0 * @@ -3046,7 +2657,7 @@ function wp_filter_object_list( $list, $args = array(), $operator = 'and', $fiel } /** - * Filters a list of objects, based on a set of key => value arguments + * Filters a list of objects, based on a set of key => value arguments. * * @since 3.1.0 * @@ -3071,9 +2682,16 @@ function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { $filtered = array(); foreach ( $list as $key => $obj ) { - $matched = count( array_intersect_assoc( (array) $obj, $args ) ); + $to_match = (array) $obj; + + $matched = 0; + foreach ( $args as $m_key => $m_value ) { + if ( array_key_exists( $m_key, $to_match ) && $m_value == $to_match[ $m_key ] ) + $matched++; + } + if ( ( 'AND' == $operator && $matched == $count ) - || ( 'OR' == $operator && $matched <= $count ) + || ( 'OR' == $operator && $matched > 0 ) || ( 'NOT' == $operator && 0 == $matched ) ) { $filtered[$key] = $obj; } @@ -3083,7 +2701,7 @@ function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { } /** - * Pluck a certain field out of each object in a list + * Pluck a certain field out of each object in a list. * * @since 3.1.0 * @@ -3093,27 +2711,15 @@ function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { */ function wp_list_pluck( $list, $field ) { foreach ( $list as $key => $value ) { - $value = (array) $value; - $list[ $key ] = $value[ $field ]; + if ( is_object( $value ) ) + $list[ $key ] = $value->$field; + else + $list[ $key ] = $value[ $field ]; } return $list; } -/** - * Determines if default embed handlers should be loaded. - * - * Checks to make sure that the embeds library hasn't already been loaded. If - * it hasn't, then it will load the embeds library. - * - * @since 2.9.0 - */ -function wp_maybe_load_embeds() { - if ( ! apply_filters('load_default_embeds', true) ) - return; - require_once( ABSPATH . WPINC . '/default-embeds.php' ); -} - /** * Determines if Widgets library should be loaded. * @@ -3138,6 +2744,10 @@ function wp_maybe_load_widgets() { */ function wp_widgets_add_menu() { global $submenu; + + if ( ! current_theme_supports( 'widgets' ) ) + return; + $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' ); ksort( $submenu['themes.php'], SORT_NUMERIC ); } @@ -3166,8 +2776,8 @@ function wp_ob_end_flush_all() { * 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. + * This function was backported to WordPress 2.3.2, but originally was added + * in WordPress 2.5.0. * * @since 2.3.2 * @uses $wpdb @@ -3189,16 +2799,18 @@ function dead_db() { status_header( 500 ); nocache_headers(); header( 'Content-Type: text/html; charset=utf-8' ); + + wp_load_translations_early(); ?> - -> + +> - Database Error + <?php _e( 'Database Error' ); ?> -

Error establishing a database connection

+

deprecated since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) ); - else - trigger_error( sprintf( __('%1$s is deprecated since version %2$s with no alternative available.'), $function, $version ) ); + if ( function_exists( '__' ) ) { + if ( ! is_null( $replacement ) ) + trigger_error( sprintf( __('%1$s is deprecated since version %2$s! Use %3$s instead.'), $function, $version, $replacement ) ); + else + trigger_error( sprintf( __('%1$s is deprecated since version %2$s with no alternative available.'), $function, $version ) ); + } else { + if ( ! is_null( $replacement ) ) + trigger_error( sprintf( '%1$s is deprecated since version %2$s! Use %3$s instead.', $function, $version, $replacement ) ); + else + trigger_error( sprintf( '%1$s is deprecated since version %2$s with no alternative available.', $function, $version ) ); + } } } @@ -3339,10 +2942,17 @@ function _deprecated_file( $file, $version, $replacement = null, $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 deprecated since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) . $message ); - else - trigger_error( sprintf( __('%1$s is deprecated since version %2$s with no alternative available.'), $file, $version ) . $message ); + if ( function_exists( '__' ) ) { + if ( ! is_null( $replacement ) ) + trigger_error( sprintf( __('%1$s is deprecated since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) . $message ); + else + trigger_error( sprintf( __('%1$s is deprecated since version %2$s with no alternative available.'), $file, $version ) . $message ); + } else { + if ( ! is_null( $replacement ) ) + trigger_error( sprintf( '%1$s is deprecated since version %2$s! Use %3$s instead.', $file, $version, $replacement ) . $message ); + else + trigger_error( sprintf( '%1$s is deprecated since version %2$s with no alternative available.', $file, $version ) . $message ); + } } } /** @@ -3383,10 +2993,17 @@ function _deprecated_argument( $function, $version, $message = null ) { // Allow plugin to filter the output error trigger if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) { - if ( ! is_null( $message ) ) - trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s! %3$s'), $function, $version, $message ) ); - else - trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s with no alternative available.'), $function, $version ) ); + if ( function_exists( '__' ) ) { + if ( ! is_null( $message ) ) + trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s! %3$s'), $function, $version, $message ) ); + else + trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s with no alternative available.'), $function, $version ) ); + } else { + if ( ! is_null( $message ) ) + trigger_error( sprintf( '%1$s was called with an argument that is deprecated since version %2$s! %3$s', $function, $version, $message ) ); + else + trigger_error( sprintf( '%1$s was called with an argument that is deprecated since version %2$s with no alternative available.', $function, $version ) ); + } } } @@ -3418,13 +3035,20 @@ function _doing_it_wrong( $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 incorrectly. %2$s %3$s' ), $function, $message, $version ) ); + if ( function_exists( '__' ) ) { + $version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version ); + $message .= ' ' . __( 'Please see Debugging in WordPress for more information.' ); + trigger_error( sprintf( __( '%1$s was called incorrectly. %2$s %3$s' ), $function, $message, $version ) ); + } else { + $version = is_null( $version ) ? '' : sprintf( '(This message was added in version %s.)', $version ); + $message .= ' Please see Debugging in WordPress for more information.'; + trigger_error( sprintf( '%1$s was called incorrectly. %2$s %3$s', $function, $message, $version ) ); + } } } /** - * Is the server running earlier than 1.5.0 version of lighttpd + * Is the server running earlier than 1.5.0 version of lighttpd? * * @since 2.5.0 * @@ -3437,7 +3061,7 @@ function is_lighttpd_before_150() { } /** - * Does the specified module exist in the apache config? + * Does the specified module exist in the Apache config? * * @since 2.5.0 * @@ -3466,7 +3090,7 @@ function apache_mod_loaded($mod, $default = false) { } /** - * Check if IIS 7 supports pretty permalinks + * Check if IIS 7+ supports pretty permalinks. * * @since 2.8.0 * @@ -3477,467 +3101,177 @@ function iis7_supports_permalinks() { $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. + /* First we check if the DOMDocument class exists. If it does not exist, then we cannot + * easily update the xml configuration file, hence we just bail out and tell user that + * pretty permalinks cannot be used. + * * Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When * URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'. * Lastly we make sure that PHP is running via FastCGI. This is important because if it runs * via ISAPI then pretty permalinks will not work. - */ - $supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' ); - } - - 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; + */ + $supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' ); } - do_action( "add_site_option_{$option}", $option, $value ); - do_action( "add_site_option", $option, $value ); - - return $result; + return apply_filters('iis7_supports_permalinks', $supports_permalinks); } /** - * Removes site option by name. + * File validates against allowed set of defined rules. * - * @see delete_option() - * @package WordPress - * @subpackage Option - * @since 2.8.0 + * A return value of '1' means that the $file contains either '..' or './'. A + * return value of '2' means that the $file contains ':' after the first + * character. A return value of '3' means that the file is not in the allowed + * files list. * - * @uses do_action() Calls 'pre_delete_site_option_$option' hook before option is deleted. - * @uses do_action() Calls 'delete_site_option' and 'delete_site_option_$option' - * hooks on success. + * @since 1.2.0 * - * @param string $option Name of option to remove. Expected to not be SQL-escaped. - * @return bool True, if succeed. False, if failure. + * @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 delete_site_option( $option ) { - global $wpdb; +function validate_file( $file, $allowed_files = '' ) { + if ( false !== strpos( $file, '..' ) ) + return 1; - // ms_protect_special_option( $option ); @todo + if ( false !== strpos( $file, './' ) ) + return 1; - do_action( 'pre_delete_site_option_' . $option ); + if ( ! empty( $allowed_files ) && ! in_array( $file, $allowed_files ) ) + return 3; - 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' ); + if (':' == substr( $file, 1, 1 ) ) + return 2; - $result = $wpdb->query( $wpdb->prepare( "DELETE FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $wpdb->siteid ) ); - } + return 0; +} - if ( $result ) { - do_action( "delete_site_option_{$option}", $option ); - do_action( "delete_site_option", $option ); +/** + * Determine if SSL is used. + * + * @since 2.6.0 + * + * @return bool True if SSL, false if not used. + */ +function is_ssl() { + if ( isset($_SERVER['HTTPS']) ) { + if ( 'on' == strtolower($_SERVER['HTTPS']) ) + return true; + if ( '1' == $_SERVER['HTTPS'] ) + return true; + } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) { return true; } return false; } /** - * Update the value of a site option that was already added. - * - * @see update_option() - * @since 2.8.0 - * @package WordPress - * @subpackage Option + * Whether SSL login should be forced. * - * @uses apply_filters() Calls 'pre_update_site_option_$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. + * @since 2.6.0 * - * @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. + * @param string|bool $force Optional. + * @return bool True if forced, false if not forced. */ -function update_site_option( $option, $value ) { - global $wpdb; - - $oldvalue = get_site_option( $option ); - $value = apply_filters( 'pre_update_site_option_' . $option, $value, $oldvalue ); +function force_ssl_login( $force = null ) { + static $forced = false; - if ( $value === $oldvalue ) - return false; + if ( !is_null( $force ) ) { + $old_forced = $forced; + $forced = $force; + return $old_forced; + } - if ( !is_multisite() ) { - $result = update_option( $option, $value ); - } else { - $cache_key = "{$wpdb->siteid}:$option"; + return $forced; +} - 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' ); +/** + * Whether to force SSL used for the Administration Screens. + * + * @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; - $_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 ( !is_null( $force ) ) { + $old_forced = $forced; + $forced = $force; + return $old_forced; } - if ( $result ) { - do_action( "update_site_option_{$option}", $option, $value ); - do_action( "update_site_option", $option, $value ); - return true; - } - return false; + return $forced; } /** - * Delete a site transient + * Guess the URL for the site. * - * @since 2.9.0 - * @package WordPress - * @subpackage Transient + * Will remove wp-admin links to retrieve only return URLs not in the wp-admin + * directory. * - * @uses do_action() Calls 'delete_site_transient_$transient' hook before transient is deleted. - * @uses do_action() Calls 'deleted_site_transient' hook on success. + * @since 2.6.0 * - * @param string $transient Transient name. Expected to not be SQL-escaped. - * @return bool True if successful, false otherwise + * @return string */ -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' ); +function wp_guess_url() { + if ( defined('WP_SITEURL') && '' != WP_SITEURL ) { + $url = WP_SITEURL; } else { - $option_timeout = '_site_transient_timeout_' . $transient; - $option = '_site_transient_' . $transient; - $result = delete_site_option( $option ); - if ( $result ) - delete_site_option( $option_timeout ); + $schema = is_ssl() ? 'https://' : 'http://'; // set_url_scheme() is not defined yet + $url = preg_replace( '#/(wp-admin/.*|wp-login.php)#i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'] ); } - if ( $result ) - do_action( 'deleted_site_transient', $transient ); - return $result; + + return rtrim($url, '/'); } /** - * Get the value of a site transient + * Temporarily suspend cache additions. * - * If the transient does not exist or does not have a value, then the return value - * will be false. + * Stops more data being added to the cache, but still allows cache retrieval. + * This is useful for actions, such as imports, when a lot of data would otherwise + * be almost uselessly added to the cache. * - * @see get_transient() - * @since 2.9.0 - * @package WordPress - * @subpackage Transient + * Suspension lasts for a single page load at most. Remember to call this + * function again if you wish to re-enable cache adds earlier. * - * @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. + * @since 3.3.0 * - * @param string $transient Transient name. Expected to not be SQL-escaped. - * @return mixed Value of transient + * @param bool $suspend Optional. Suspends additions if true, re-enables them if false. + * @return bool The current suspend setting */ -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; - } - } +function wp_suspend_cache_addition( $suspend = null ) { + static $_suspend = false; - $value = get_site_option( $transient_option ); - } + if ( is_bool( $suspend ) ) + $_suspend = $suspend; - return apply_filters( 'site_transient_' . $transient, $value ); + return $_suspend; } /** - * Set/update the value of a site transient - * - * You do not need to serialize values, if the value needs to be serialize, then - * it will be serialized before it is set. + * Suspend cache invalidation. * - * @see set_transient() - * @since 2.9.0 - * @package WordPress - * @subpackage Transient + * Turns cache invalidation on and off. Useful during imports where you don't wont to do invalidations + * every time a post is inserted. Callers must be sure that what they are doing won't lead to an inconsistent + * cache when invalidation is suspended. * - * @uses apply_filters() Calls 'pre_set_site_transient_$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. + * @since 2.7.0 * - * @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. + * @param bool $suspend Whether to suspend or enable cache invalidation + * @return bool The current suspend setting */ -function set_site_transient( $transient, $value, $expiration = 0 ) { - global $_wp_using_ext_object_cache; - - $value = apply_filters( 'pre_set_site_transient_' . $transient, $value ); +function wp_suspend_cache_invalidation($suspend = true) { + global $_wp_suspend_cache_invalidation; - 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; + $current_suspend = $_wp_suspend_cache_invalidation; + $_wp_suspend_cache_invalidation = $suspend; + return $current_suspend; } /** - * is main site + * Is main site? * * * @since 3.0.0 @@ -3947,13 +3281,13 @@ function set_site_transient( $transient, $value, $expiration = 0 ) { * @return bool True if not multisite or $blog_id is main site */ function is_main_site( $blog_id = '' ) { - global $current_site, $current_blog; + global $current_site; - if ( !is_multisite() ) + if ( ! is_multisite() ) return true; - if ( !$blog_id ) - $blog_id = $current_blog->blog_id; + if ( ! $blog_id ) + $blog_id = get_current_blog_id(); return $blog_id == $current_site->blog_id; } @@ -3983,18 +3317,15 @@ function global_terms_enabled() { } /** - * gmt_offset modification for smart timezone handling + * gmt_offset modification for smart timezone handling. * - * Overrides the gmt_offset option if we have a timezone_string available + * Overrides the gmt_offset option if we have a timezone_string available. * * @since 2.8.0 * * @return float|bool */ function wp_timezone_override_offset() { - if ( !wp_timezone_supported() ) { - return false; - } if ( !$timezone_string = get_option( 'timezone_string' ) ) { return false; } @@ -4004,28 +3335,7 @@ function wp_timezone_override_offset() { 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 ); + return round( timezone_offset_get( $timezone_object, $datetime_object ) / HOUR_IN_SECONDS, 2 ); } /** @@ -4076,7 +3386,7 @@ function _wp_timezone_choice_usort_callback( $a, $b ) { } /** - * Gives a nicely formatted list of timezone strings // temporary! Not in final + * Gives a nicely formatted list of timezone strings. * * @since 2.9.0 * @@ -4205,7 +3515,7 @@ function wp_timezone_choice( $selected_zone ) { } /** - * Strip close comment and close php tags from file headers used by WP + * Strip close comment and close php tags from file headers used by WP. * See http://core.trac.wordpress.org/ticket/8497 * * @since 2.8.0 @@ -4225,7 +3535,7 @@ function _cleanup_header_comment($str) { function wp_scheduled_delete() { global $wpdb; - $delete_timestamp = time() - (60*60*24*EMPTY_TRASH_DAYS); + $delete_timestamp = time() - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS ); $posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A); @@ -4266,7 +3576,7 @@ function wp_scheduled_delete() { * 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 + * Each piece of metadata must be on its own line. Fields can not span multiple * lines, the value will get cut at the end of the first line. * * If the file data is not within that first 8kiB, then the author should correct @@ -4289,33 +3599,28 @@ function get_file_data( $file, $default_headers, $context = '' ) { // PHP will close file handle, but we are good citizens. fclose( $fp ); - if ( $context != '' ) { - $extra_headers = apply_filters( "extra_{$context}_headers", array() ); + // Make sure we catch CR-only line endings. + $file_data = str_replace( "\r", "\n", $file_data ); - $extra_headers = array_flip( $extra_headers ); - foreach( $extra_headers as $key=>$value ) { - $extra_headers[$key] = $key; - } + if ( $context && $extra_headers = apply_filters( "extra_{$context}_headers", array() ) ) { + $extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values $all_headers = array_merge( $extra_headers, (array) $default_headers ); } else { $all_headers = $default_headers; } foreach ( $all_headers as $field => $regex ) { - preg_match( '/^[ \t\/*#]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, ${$field}); - if ( !empty( ${$field} ) ) - ${$field} = _cleanup_header_comment( ${$field}[1] ); + if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) + $all_headers[ $field ] = _cleanup_header_comment( $match[1] ); else - ${$field} = ''; + $all_headers[ $field ] = ''; } - $file_data = compact( array_keys( $all_headers ) ); - - return $file_data; + return $all_headers; } /** - * Used internally to tidy up the search terms + * Used internally to tidy up the search terms. * * @access private * @since 2.9.0 @@ -4328,9 +3633,9 @@ function _search_terms_tidy($t) { } /** - * Returns true + * Returns true. * - * Useful for returning true to filters easily + * Useful for returning true to filters easily. * * @since 3.0.0 * @see __return_false() @@ -4341,9 +3646,9 @@ function __return_true() { } /** - * Returns false + * Returns false. * - * Useful for returning false to filters easily + * Useful for returning false to filters easily. * * @since 3.0.0 * @see __return_true() @@ -4354,9 +3659,9 @@ function __return_false() { } /** - * Returns 0 + * Returns 0. * - * Useful for returning 0 to filters easily + * Useful for returning 0 to filters easily. * * @since 3.0.0 * @see __return_zero() @@ -4367,9 +3672,9 @@ function __return_zero() { } /** - * Returns an empty array + * Returns an empty array. * - * Useful for returning an empty array to filters easily + * Useful for returning an empty array to filters easily. * * @since 3.0.0 * @see __return_zero() @@ -4379,6 +3684,18 @@ function __return_empty_array() { return array(); } +/** + * Returns null. + * + * Useful for returning null to filters easily. + * + * @since 3.4.0 + * @return null + */ +function __return_null() { + return null; +} + /** * Send a HTTP header to disable content type sniffing in browsers which support it. * @@ -4446,7 +3763,7 @@ function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_arg * @since 3.1.0 * @access private * - * @param callback $callback function that accupts ( ID, callback_arg, ... ) and outputs parent_ID + * @param callback $callback function that accepts ( ID, callback_arg, ... ) and outputs parent_ID * @param int $start The ID to start the loop check at * @param array $override an array of ( ID => parent_ID, ... ) to use instead of $callback * @param array $callback_args optional additional arguments to send to $callback @@ -4482,4 +3799,274 @@ function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = ar return false; } -?> +/** + * Send a HTTP header to limit rendering of pages to same origin iframes. + * + * @link https://developer.mozilla.org/en/the_x-frame-options_response_header + * + * @since 3.1.3 + * @return none + */ +function send_frame_options_header() { + @header( 'X-Frame-Options: SAMEORIGIN' ); +} + +/** + * Retrieve a list of protocols to allow in HTML attributes. + * + * @since 3.3.0 + * @see wp_kses() + * @see esc_url() + * + * @return array Array of allowed protocols + */ +function wp_allowed_protocols() { + static $protocols; + + if ( empty( $protocols ) ) { + $protocols = array( 'http', 'https', 'ftp', 'ftps', 'mailto', 'news', 'irc', 'gopher', 'nntp', 'feed', 'telnet', 'mms', 'rtsp', 'svn', 'tel', 'fax', 'xmpp' ); + $protocols = apply_filters( 'kses_allowed_protocols', $protocols ); + } + + return $protocols; +} + +/** + * Return a comma separated string of functions that have been called to get to the current point in code. + * + * @link http://core.trac.wordpress.org/ticket/19589 + * @since 3.4 + * + * @param string $ignore_class A class to ignore all function calls within - useful when you want to just give info about the callee + * @param int $skip_frames A number of stack frames to skip - useful for unwinding back to the source of the issue + * @param bool $pretty Whether or not you want a comma separated string or raw array returned + * @return string|array Either a string containing a reversed comma separated trace or an array of individual calls. + */ +function wp_debug_backtrace_summary( $ignore_class = null, $skip_frames = 0, $pretty = true ) { + if ( version_compare( PHP_VERSION, '5.2.5', '>=' ) ) + $trace = debug_backtrace( false ); + else + $trace = debug_backtrace(); + + $caller = array(); + $check_class = ! is_null( $ignore_class ); + $skip_frames++; // skip this function + + foreach ( $trace as $call ) { + if ( $skip_frames > 0 ) { + $skip_frames--; + } elseif ( isset( $call['class'] ) ) { + if ( $check_class && $ignore_class == $call['class'] ) + continue; // Filter out calls + + $caller[] = "{$call['class']}{$call['type']}{$call['function']}"; + } else { + if ( in_array( $call['function'], array( 'do_action', 'apply_filters' ) ) ) { + $caller[] = "{$call['function']}('{$call['args'][0]}')"; + } elseif ( in_array( $call['function'], array( 'include', 'include_once', 'require', 'require_once' ) ) ) { + $caller[] = $call['function'] . "('" . str_replace( array( WP_CONTENT_DIR, ABSPATH ) , '', $call['args'][0] ) . "')"; + } else { + $caller[] = $call['function']; + } + } + } + if ( $pretty ) + return join( ', ', array_reverse( $caller ) ); + else + return $caller; +} + +/** + * Retrieve ids that are not already present in the cache + * + * @since 3.4.0 + * + * @param array $object_ids ID list + * @param string $cache_key The cache bucket to check against + * + * @return array + */ +function _get_non_cached_ids( $object_ids, $cache_key ) { + $clean = array(); + foreach ( $object_ids as $id ) { + $id = (int) $id; + if ( !wp_cache_get( $id, $cache_key ) ) { + $clean[] = $id; + } + } + + return $clean; +} + +/** + * Test if the current device has the capability to upload files. + * + * @since 3.4.0 + * @access private + * + * @return bool true|false + */ +function _device_can_upload() { + if ( ! wp_is_mobile() ) + return true; + + $ua = $_SERVER['HTTP_USER_AGENT']; + + if ( strpos($ua, 'iPhone') !== false + || strpos($ua, 'iPad') !== false + || strpos($ua, 'iPod') !== false ) { + return preg_match( '#OS ([\d_]+) like Mac OS X#', $ua, $version ) && version_compare( $version[1], '6', '>=' ); + } + + return true; +} + +/** + * Test if a given path is a stream URL + * + * @param string $path The resource path or URL + * @return bool True if the path is a stream URL + */ +function wp_is_stream( $path ) { + $wrappers = stream_get_wrappers(); + $wrappers_re = '(' . join('|', $wrappers) . ')'; + + return preg_match( "!^$wrappers_re://!", $path ) === 1; +} + +/** + * Test if the supplied date is valid for the Gregorian calendar + * + * @since 3.5.0 + * + * @return bool true|false + */ +function wp_checkdate( $month, $day, $year, $source_date ) { + return apply_filters( 'wp_checkdate', checkdate( $month, $day, $year ), $source_date ); +} + +/** + * Load the auth check for monitoring whether the user is still logged in. + * + * Can be disabled with remove_action( 'admin_enqueue_scripts', 'wp_auth_check_load' ); + * + * This is disabled for certain screens where a login screen could cause an + * inconvenient interruption. A filter called wp_auth_check_load can be used + * for fine-grained control. + * + * @since 3.6.0 + */ +function wp_auth_check_load() { + if ( ! is_admin() && ! is_user_logged_in() ) + return; + + if ( defined( 'IFRAME_REQUEST' ) ) + return; + + $screen = get_current_screen(); + $hidden = array( 'update', 'update-network', 'update-core', 'update-core-network', 'upgrade', 'upgrade-network', 'network' ); + $show = ! in_array( $screen->id, $hidden ); + + if ( apply_filters( 'wp_auth_check_load', $show, $screen ) ) { + wp_enqueue_style( 'wp-auth-check' ); + wp_enqueue_script( 'wp-auth-check' ); + + add_action( 'admin_print_footer_scripts', 'wp_auth_check_html', 5 ); + add_action( 'wp_print_footer_scripts', 'wp_auth_check_html', 5 ); + } +} + +/** + * Output the HTML that shows the wp-login dialog when the user is no longer logged in. + * + * @since 3.6.0 + */ +function wp_auth_check_html() { + $login_url = wp_login_url(); + $current_domain = ( is_ssl() ? 'https://' : 'http://' ) . $_SERVER['HTTP_HOST']; + $same_domain = ( strpos( $login_url, $current_domain ) === 0 ); + + if ( $same_domain && force_ssl_login() && ! force_ssl_admin() ) + $same_domain = false; + + // Let plugins change this if they know better. + $same_domain = apply_filters( 'wp_auth_check_same_domain', $same_domain ); + $wrap_class = $same_domain ? 'hidden' : 'hidden fallback'; + + ?> +
+
+
+
+ +
+ +
+

+

+

+
+
+
+ [\s\S]*<\/%1$s>|\s*\/>)', tag_escape( $tag ) ); +} + +/** + * Return a canonical form of the provided charset appropriate for passing to PHP + * functions such as htmlspecialchars() and charset html attributes. + * + * @link http://core.trac.wordpress.org/ticket/23688 + * @since 3.6.0 + * + * @param string A charset name + * @return string The canonical form of the charset + */ +function _canonical_charset( $charset ) { + if ( 'UTF-8' === $charset || 'utf-8' === $charset || 'utf8' === $charset || + 'UTF8' === $charset ) + return 'UTF-8'; + + if ( 'ISO-8859-1' === $charset || 'iso-8859-1' === $charset || + 'iso8859-1' === $charset || 'ISO8859-1' === $charset ) + return 'ISO-8859-1'; + + return $charset; +}