X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/76aea3697c6043c1613370f172395b4f65ee71f0..refs/tags/wordpress-3.4.1:/wp-includes/functions.php diff --git a/wp-includes/functions.php b/wp-includes/functions.php index fb3aaf0f..d0c5f526 100644 --- a/wp-includes/functions.php +++ b/wp-includes/functions.php @@ -5,72 +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 ) { - global $wp_locale; - $m = $mysqlstring; - if ( empty( $m ) ) +function mysql2date( $format, $date, $translate = true ) { + if ( empty( $date ) ) return false; - if( 'G' == $dateformatstring ) { - return gmmktime( - (int) substr( $m, 11, 2 ), (int) substr( $m, 14, 2 ), (int) substr( $m, 17, 2 ), - (int) substr( $m, 5, 2 ), (int) substr( $m, 8, 2 ), (int) substr( $m, 0, 4 ) - ); - } + if ( 'G' == $format ) + return strtotime( $date . ' +0000' ); - $i = mktime( - (int) substr( $m, 11, 2 ), (int) substr( $m, 14, 2 ), (int) substr( $m, 17, 2 ), - (int) substr( $m, 5, 2 ), (int) substr( $m, 8, 2 ), (int) substr( $m, 0, 4 ) - ); + $i = strtotime( $date ); - if( 'U' == $dateformatstring ) + if ( 'U' == $format ) return $i; - if ( -1 == $i || false == $i ) - $i = 0; - - if ( !empty( $wp_locale->month ) && !empty( $wp_locale->weekday ) && $translate ) { - $datemonth = $wp_locale->get_month( date( 'm', $i ) ); - $datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth ); - $dateweekday = $wp_locale->get_weekday( date( 'w', $i ) ); - $dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday ); - $datemeridiem = $wp_locale->get_meridiem( date( 'a', $i ) ); - $datemeridiem_capital = $wp_locale->get_meridiem( date( 'A', $i ) ); - $dateformatstring = ' ' . $dateformatstring; - $dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring ); - $dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring ); - $dateformatstring = preg_replace( "/([^\\\])l/", "\\1" . backslashit( $dateweekday ), $dateformatstring ); - $dateformatstring = preg_replace( "/([^\\\])M/", "\\1" . backslashit( $datemonth_abbrev ), $dateformatstring ); - $dateformatstring = preg_replace( "/([^\\\])a/", "\\1" . backslashit( $datemeridiem ), $dateformatstring ); - $dateformatstring = preg_replace( "/([^\\\])A/", "\\1" . backslashit( $datemeridiem_capital ), $dateformatstring ); - - $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); - } - $j = @date( $dateformatstring, $i ); - - /* - if ( !$j ) // for debug purposes - echo $i." ".$mysqlstring; - */ - - return $j; + if ( $translate ) + return date_i18n( $format, $i ); + else + return date( $format, $i ); } /** @@ -79,14 +47,14 @@ function mysql2date( $dateformatstring, $mysqlstring, $translate = true ) { * The 'mysql' type will return the time in the format for MySQL DATETIME field. * The 'timestamp' type will return the current timestamp. * - * If the $gmt is set to either '1' or 'true', then both types will use the - * GMT offset in the WordPress option to add the GMT offset to the time. + * If $gmt is set to either '1' or 'true', then both types will use GMT time. + * if $gmt is false, the output is adjusted with the GMT offset in the WordPress option. * * @since 1.0.0 * * @param string $type Either 'mysql' or 'timestamp'. - * @param int|bool $gmt Optional. Whether to use $gmt offset. Default is false. - * @return unknown + * @param int|bool $gmt Optional. Whether to use GMT timezone. Default is false. + * @return int|string String if $type is 'gmt', int if $type is 'timestamp'. */ function current_time( $type, $gmt = 0 ) { switch ( $type ) { @@ -108,24 +76,38 @@ function current_time( $type, $gmt = 0 ) { * * @since 0.71 * - * @param string $dateformatstring Format to display the date - * @param int $unixtimestamp Unix timestamp + * @param string $dateformatstring Format to display the date. + * @param int $unixtimestamp Optional. Unix timestamp. + * @param bool $gmt Optional, default is false. Whether to convert to GMT for time. * @return string The date, translated if locale specifies it. */ -function date_i18n( $dateformatstring, $unixtimestamp ) { +function date_i18n( $dateformatstring, $unixtimestamp = false, $gmt = false ) { global $wp_locale; $i = $unixtimestamp; - // Sanity check for PHP 5.1.0- - if ( -1 == $i ) - $i = false; - + + if ( false === $i ) { + if ( ! $gmt ) + $i = current_time( 'timestamp' ); + else + $i = time(); + // we should not let date() interfere with our + // specially computed timestamp + $gmt = true; + } + + // store original value for language with untypical grammars + // see http://core.trac.wordpress.org/ticket/9396 + $req_format = $dateformatstring; + + $datefunc = $gmt? 'gmdate' : 'date'; + if ( ( !empty( $wp_locale->month ) ) && ( !empty( $wp_locale->weekday ) ) ) { - $datemonth = $wp_locale->get_month( date( 'm', $i ) ); + $datemonth = $wp_locale->get_month( $datefunc( 'm', $i ) ); $datemonth_abbrev = $wp_locale->get_month_abbrev( $datemonth ); - $dateweekday = $wp_locale->get_weekday( date( 'w', $i ) ); + $dateweekday = $wp_locale->get_weekday( $datefunc( 'w', $i ) ); $dateweekday_abbrev = $wp_locale->get_weekday_abbrev( $dateweekday ); - $datemeridiem = $wp_locale->get_meridiem( date( 'a', $i ) ); - $datemeridiem_capital = $wp_locale->get_meridiem( date( 'A', $i ) ); + $datemeridiem = $wp_locale->get_meridiem( $datefunc( 'a', $i ) ); + $datemeridiem_capital = $wp_locale->get_meridiem( $datefunc( 'A', $i ) ); $dateformatstring = ' '.$dateformatstring; $dateformatstring = preg_replace( "/([^\\\])D/", "\\1" . backslashit( $dateweekday_abbrev ), $dateformatstring ); $dateformatstring = preg_replace( "/([^\\\])F/", "\\1" . backslashit( $datemonth ), $dateformatstring ); @@ -136,25 +118,42 @@ function date_i18n( $dateformatstring, $unixtimestamp ) { $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); } - $j = @date( $dateformatstring, $i ); + $timezone_formats = array( 'P', 'I', 'O', 'T', 'Z', 'e' ); + $timezone_formats_re = implode( '|', $timezone_formats ); + if ( preg_match( "/$timezone_formats_re/", $dateformatstring ) ) { + $timezone_string = get_option( 'timezone_string' ); + if ( $timezone_string ) { + $timezone_object = timezone_open( $timezone_string ); + $date_object = date_create( null, $timezone_object ); + foreach( $timezone_formats as $timezone_format ) { + if ( false !== strpos( $dateformatstring, $timezone_format ) ) { + $formatted = date_format( $date_object, $timezone_format ); + $dateformatstring = ' '.$dateformatstring; + $dateformatstring = preg_replace( "/([^\\\])$timezone_format/", "\\1" . backslashit( $formatted ), $dateformatstring ); + $dateformatstring = substr( $dateformatstring, 1, strlen( $dateformatstring ) -1 ); + } + } + } + } + $j = @$datefunc( $dateformatstring, $i ); + // allow plugins to redo this entirely for languages with untypical grammars + $j = apply_filters('date_i18n', $j, $req_format, $i, $gmt); return $j; } /** - * Convert number to format based on the locale. + * Convert integer number to format based on the locale. * * @since 2.3.0 * - * @param mixed $number The number to convert based on locale. + * @param int $number The number to convert based on locale. * @param int $decimals Precision of the number of decimal places. * @return string Converted number in string format. */ -function number_format_i18n( $number, $decimals = null ) { +function number_format_i18n( $number, $decimals = 0 ) { global $wp_locale; - // let the user override the precision only - $decimals = ( is_null( $decimals ) ) ? $wp_locale->number_format['decimals'] : intval( $decimals ); - - return number_format( $number, $decimals, $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] ); + $formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] ); + return apply_filters( 'number_format_i18n', $formatted ); } /** @@ -175,10 +174,10 @@ function number_format_i18n( $number, $decimals = null ) { * @since 2.3.0 * * @param int|string $bytes Number of bytes. Note max integer size for integers. - * @param int $decimals Precision of number of decimal places. - * @return unknown + * @param int $decimals Precision of number of decimal places. Deprecated. + * @return bool|string False on failure. Number string on success. */ -function size_format( $bytes, $decimals = null ) { +function size_format( $bytes, $decimals = 0 ) { $quant = array( // ========================= Origin ==== 'TB' => 1099511627776, // pow( 1024, 4) @@ -187,7 +186,6 @@ function size_format( $bytes, $decimals = null ) { 'kB' => 1024, // pow( 1024, 1) 'B ' => 1, // pow( 1024, 0) ); - foreach ( $quant as $unit => $mag ) if ( doubleval($bytes) >= $mag ) return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit; @@ -195,31 +193,30 @@ function size_format( $bytes, $decimals = null ) { return false; } - +/** + * Get the week start and end from the datetime or date string from mysql. + * + * @since 0.71 + * + * @param string $mysqlstring Date or datetime field type from mysql. + * @param int $start_of_week Optional. Start of the week as an integer. + * @return array Keys are 'start' and 'end'. + */ function get_weekstartend( $mysqlstring, $start_of_week = '' ) { - $my = substr( $mysqlstring, 0, 4 ); - $mm = substr( $mysqlstring, 8, 2 ); - $md = substr( $mysqlstring, 5, 2 ); - $day = mktime( 0, 0, 0, $md, $mm, $my ); - $weekday = date( 'w', $day ); - $i = 86400; - if( !is_numeric($start_of_week) ) + $my = substr( $mysqlstring, 0, 4 ); // Mysql string Year + $mm = substr( $mysqlstring, 8, 2 ); // Mysql string Month + $md = substr( $mysqlstring, 5, 2 ); // Mysql string day + $day = mktime( 0, 0, 0, $md, $mm, $my ); // The timestamp for mysqlstring day. + $weekday = date( 'w', $day ); // The day of the week from the timestamp + if ( !is_numeric($start_of_week) ) $start_of_week = get_option( 'start_of_week' ); if ( $weekday < $start_of_week ) - $weekday = 7 - $start_of_week - $weekday; + $weekday += 7; - while ( $weekday > $start_of_week ) { - $weekday = date( 'w', $day ); - if ( $weekday < $start_of_week ) - $weekday = 7 - $start_of_week - $weekday; - - $day -= 86400; - $i = 0; - } - $week['start'] = $day + 86400 - $i; - $week['end'] = $week['start'] + 604799; - return $week; + $start = $day - 86400 * ( $weekday - $start_of_week ); // The most recent week start day on or before $day + $end = $start + 604799; // $start + 7 days - 1 second + return compact( 'start', 'end' ); } /** @@ -232,8 +229,7 @@ function get_weekstartend( $mysqlstring, $start_of_week = '' ) { */ function maybe_unserialize( $original ) { if ( is_serialized( $original ) ) // don't attempt to unserialize data that wasn't serialized going in - if ( false !== $gm = @unserialize( $original ) ) - return $gm; + return @unserialize( $original ); return $original; } @@ -250,26 +246,31 @@ function maybe_unserialize( $original ) { */ function is_serialized( $data ) { // if it isn't a string, it isn't serialized - if ( !is_string( $data ) ) + if ( ! is_string( $data ) ) return false; $data = trim( $data ); - if ( 'N;' == $data ) + if ( 'N;' == $data ) return true; - if ( !preg_match( '/^([adObis]):/', $data, $badions ) ) + $length = strlen( $data ); + if ( $length < 4 ) + return false; + if ( ':' !== $data[1] ) return false; - switch ( $badions[1] ) { + $lastc = $data[$length-1]; + if ( ';' !== $lastc && '}' !== $lastc ) + return false; + $token = $data[0]; + switch ( $token ) { + case 's' : + if ( '"' !== $data[$length-2] ) + return false; case 'a' : case 'O' : - case 's' : - if ( preg_match( "/^{$badions[1]}:[0-9]+:.*[;}]\$/s", $data ) ) - return true; - break; + return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data ); case 'b' : case 'i' : case 'd' : - if ( preg_match( "/^{$badions[1]}:[0-9.E-]+;\$/", $data ) ) - return true; - break; + return (bool) preg_match( "/^{$token}:[0-9.E-]+;\$/", $data ); } return false; } @@ -287,345 +288,26 @@ function is_serialized_string( $data ) { if ( !is_string( $data ) ) return false; $data = trim( $data ); - if ( preg_match( '/^s:[0-9]+:.*;$/s', $data ) ) // this should fetch all serialized strings - return true; - return false; -} - -/** - * Retrieve option value based on setting name. - * - * If the option does not exist or does not have a value, then the return value - * will be false. This is useful to check whether you need to install an option - * and is commonly used during installation of plugin options and to test - * whether upgrading is required. - * - * You can "short-circuit" the retrieval of the option from the database for - * your plugin or core options that aren't protected. You can do so by hooking - * into the 'pre_option_$option' with the $option being replaced by the option - * name. You should not try to override special options, but you will not be - * prevented from doing so. - * - * There is a second filter called 'option_$option' with the $option being - * replaced with the option name. This gives the value as the only parameter. - * - * @since 1.5.0 - * @package WordPress - * @subpackage Option - * @uses apply_filters() Calls 'pre_option_$optionname' false to allow - * overwriting the option value in a plugin. - * @uses apply_filters() Calls 'option_$optionname' with the option name value. - * - * @param string $setting Name of option to retrieve. Should already be SQL-escaped - * @return mixed Value set for the option. - */ -function get_option( $setting ) { - global $wpdb; - - // Allow plugins to short-circuit options. - $pre = apply_filters( 'pre_option_' . $setting, false ); - if ( false !== $pre ) - return $pre; - - // prevent non-existent options from triggering multiple queries - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( isset( $notoptions[$setting] ) ) + $length = strlen( $data ); + if ( $length < 4 ) return false; - - $alloptions = wp_load_alloptions(); - - if ( isset( $alloptions[$setting] ) ) { - $value = $alloptions[$setting]; - } else { - $value = wp_cache_get( $setting, 'options' ); - - if ( false === $value ) { - if ( defined( 'WP_INSTALLING' ) ) - $suppress = $wpdb->suppress_errors(); - // expected_slashed ($setting) - $row = $wpdb->get_row( "SELECT option_value FROM $wpdb->options WHERE option_name = '$setting' LIMIT 1" ); - if ( defined( 'WP_INSTALLING' ) ) - $wpdb->suppress_errors($suppress); - - if ( is_object( $row) ) { // Has to be get_row instead of get_var because of funkiness with 0, false, null values - $value = $row->option_value; - wp_cache_add( $setting, $value, 'options' ); - } else { // option does not exist, so we must cache its non-existence - $notoptions[$setting] = true; - wp_cache_set( 'notoptions', $notoptions, 'options' ); - return false; - } - } - } - - // If home is not set use siteurl. - if ( 'home' == $setting && '' == $value ) - return get_option( 'siteurl' ); - - if ( in_array( $setting, array('siteurl', 'home', 'category_base', 'tag_base') ) ) - $value = untrailingslashit( $value ); - - return apply_filters( 'option_' . $setting, maybe_unserialize( $value ) ); -} - -/** - * Protect WordPress special option from being modified. - * - * Will die if $option is in protected list. - * - * @since 2.2.0 - * @package WordPress - * @subpackage Option - * - * @param string $option Option name. - */ -function wp_protect_special_option( $option ) { - $protected = array( 'alloptions', 'notoptions' ); - if ( in_array( $option, $protected ) ) - die( sprintf( __( '%s is a protected WP option and may not be modified' ), wp_specialchars( $option ) ) ); -} - -/** - * Print option value after sanitizing for forms. - * - * @uses attribute_escape Sanitizes value. - * @since 1.5.0 - * @package WordPress - * @subpackage Option - * - * @param string $option Option name. - */ -function form_option( $option ) { - echo attribute_escape (get_option( $option ) ); -} - -/** - * Retrieve all autoload options or all options, if no autoloaded ones exist. - * - * This is different from wp_load_alloptions(), in this that function does not - * cache all options and will retrieve all options from the database every time - * it is called. - * - * @since 1.0.0 - * @package WordPress - * @subpackage Option - * @uses apply_filters() Calls 'pre_option_$optionname' hook with option value as parameter. - * @uses apply_filters() Calls 'all_options' on options list. - * - * @return array List of all options. - */ -function get_alloptions() { - global $wpdb, $wp_queries; - $show = $wpdb->hide_errors(); - if ( !$options = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload = 'yes'" ) ) - $options = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ); - $wpdb->show_errors($show); - - foreach ( $options as $option ) { - // "When trying to design a foolproof system, - // never underestimate the ingenuity of the fools :)" -- Dougal - if ( in_array( $option->option_name, array( 'siteurl', 'home', 'category_base', 'tag_base' ) ) ) - $option->option_value = untrailingslashit( $option->option_value ); - $value = maybe_unserialize( $option->option_value ); - $all_options->{$option->option_name} = apply_filters( 'pre_option_' . $option->option_name, $value ); - } - return apply_filters( 'all_options', $all_options ); -} - -/** - * Loads and caches all autoloaded options, if available or all options. - * - * This is different from get_alloptions(), in that this function will cache the - * options and will return the cached options when called again. - * - * @since 2.2.0 - * @package WordPress - * @subpackage Option - * - * @return array List all options. - */ -function wp_load_alloptions() { - global $wpdb; - - $alloptions = wp_cache_get( 'alloptions', 'options' ); - - if ( !$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; - wp_cache_add( 'alloptions', $alloptions, 'options' ); - } - return $alloptions; -} - -/** - * Update the value of an option that was already added. - * - * If the option does not exist, then the option will be added with the option - * value, but you will not be able to set whether it is autoloaded. If you want - * to set whether an option autoloaded, then you need to use the add_option(). - * - * When the option is updated, then the filter named - * 'update_option_$option_name', with the $option_name as the $option_name - * parameter value, will be called. The hook should accept two parameters, the - * first is the old parameter and the second is the new parameter. - * - * @since 1.0.0 - * @package WordPress - * @subpackage Option - * - * @param string $option_name Option name. Expected to not be SQL-escaped - * @param mixed $newvalue Option value. - * @return bool False if value was not updated and true if value was updated. - */ -function update_option( $option_name, $newvalue ) { - global $wpdb; - - wp_protect_special_option( $option_name ); - - $safe_option_name = $wpdb->escape( $option_name ); - $newvalue = sanitize_option( $option_name, $newvalue ); - - $oldvalue = get_option( $safe_option_name ); - - $newvalue = apply_filters( 'pre_update_option_' . $option_name, $newvalue, $oldvalue ); - - // If the new and old values are the same, no need to update. - if ( $newvalue === $oldvalue ) + elseif ( ':' !== $data[1] ) return false; - - if ( false === $oldvalue ) { - add_option( $option_name, $newvalue ); - return true; - } - - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( is_array( $notoptions ) && isset( $notoptions[$option_name] ) ) { - unset( $notoptions[$option_name] ); - wp_cache_set( 'notoptions', $notoptions, 'options' ); - } - - $_newvalue = $newvalue; - $newvalue = maybe_serialize( $newvalue ); - - $alloptions = wp_load_alloptions(); - if ( isset( $alloptions[$option_name] ) ) { - $alloptions[$option_name] = $newvalue; - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } else { - wp_cache_set( $option_name, $newvalue, 'options' ); - } - - $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->options SET option_value = %s WHERE option_name = %s", $newvalue, $option_name ) ); - if ( $wpdb->rows_affected == 1 ) { - do_action( "update_option_{$option_name}", $oldvalue, $_newvalue ); - return true; - } - return false; -} - -/** - * Add a new option. - * - * You can create options without values and then add values later. Does not - * check whether the option has already been added, but does check that you - * aren't adding a protected WordPress option. Care should be taken to not name - * options, the same as the ones which are protected and to not add options - * that were already added. - * - * The filter named 'add_option_$optionname', with the $optionname being - * replaced with the option's name, will be called. The hook should accept two - * parameters, the first is the option name, and the second is the value. - * - * @package WordPress - * @subpackage Option - * @since 1.0.0 - * @link http://alex.vort-x.net/blog/ Thanks Alex Stapleton - * - * @param string $name Option name to add. Expects to NOT be SQL escaped. - * @param mixed $value Optional. Option value, can be anything. - * @param mixed $deprecated Optional. Description. Not used anymore. - * @param bool $autoload Optional. Default is enabled. Whether to load the option when WordPress starts up. - * @return null returns when finished. - */ -function add_option( $name, $value = '', $deprecated = '', $autoload = 'yes' ) { - global $wpdb; - - wp_protect_special_option( $name ); - $safe_name = $wpdb->escape( $name ); - $value = sanitize_option( $name, $value ); - - // Make sure the option doesn't already exist. We can check the 'notoptions' cache before we ask for a db query - $notoptions = wp_cache_get( 'notoptions', 'options' ); - if ( !is_array( $notoptions ) || !isset( $notoptions[$name] ) ) - if ( false !== get_option( $safe_name ) ) - return; - - $value = maybe_serialize( $value ); - $autoload = ( 'no' === $autoload ) ? 'no' : 'yes'; - - if ( 'yes' == $autoload ) { - $alloptions = wp_load_alloptions(); - $alloptions[$name] = $value; - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } else { - wp_cache_set( $name, $value, 'options' ); - } - - // This option exists now - $notoptions = wp_cache_get( 'notoptions', 'options' ); // yes, again... we need it to be fresh - if ( is_array( $notoptions ) && isset( $notoptions[$name] ) ) { - unset( $notoptions[$name] ); - wp_cache_set( 'notoptions', $notoptions, 'options' ); - } - - $wpdb->query( $wpdb->prepare( "INSERT INTO $wpdb->options (option_name, option_value, autoload) VALUES (%s, %s, %s)", $name, $value, $autoload ) ); - - do_action( "add_option_{$name}", $name, $value ); - return; -} - -/** - * Removes option by name and prevents removal of protected WordPress options. - * - * @package WordPress - * @subpackage Option - * @since unknown - * - * @param string $name Option name to remove. - * @return bool True, if succeed. False, if failure. - */ -function delete_option( $name ) { - global $wpdb; - - wp_protect_special_option( $name ); - - // Get the ID, if no ID then return - // expected_slashed ($name) - $option = $wpdb->get_row( "SELECT option_id, autoload FROM $wpdb->options WHERE option_name = '$name'" ); - if ( is_null($option) || !$option->option_id ) + elseif ( ';' !== $data[$length-1] ) return false; - // expected_slashed ($name) - $wpdb->query( "DELETE FROM $wpdb->options WHERE option_name = '$name'" ); - if ( 'yes' == $option->autoload ) { - $alloptions = wp_load_alloptions(); - if ( isset( $alloptions[$name] ) ) { - unset( $alloptions[$name] ); - wp_cache_set( 'alloptions', $alloptions, 'options' ); - } - } else { - wp_cache_delete( $name, 'options' ); - } - return true; + elseif ( $data[0] !== 's' ) + return false; + elseif ( '"' !== $data[$length-2] ) + return false; + else + return true; } /** * Serialize data, if needed. * + * @since 2.0.5 + * * @param mixed $data Data that might be serialized. * @return mixed A scalar data */ @@ -633,46 +315,55 @@ function maybe_serialize( $data ) { if ( is_array( $data ) || is_object( $data ) ) return serialize( $data ); + // Double serialization is required for backward compatibility. + // See http://core.trac.wordpress.org/ticket/12930 if ( is_serialized( $data ) ) return serialize( $data ); return $data; } - -function make_url_footnote( $content ) { - preg_match_all( '/(.+?)<\/a>/', $content, $matches ); - $j = 0; - for ( $i=0; $i(.+?)<\/title>/is', $content, $matchtitle ) ) { - $post_title = $matchtitle[0]; - $post_title = preg_replace( '//si', '', $post_title ); - $post_title = preg_replace( '/<\/title>/si', '', $post_title ); + $post_title = $matchtitle[1]; } else { $post_title = $post_default_title; } return $post_title; } - +/** + * Retrieve the post category or categories from XMLRPC XML. + * + * If the category element is not found, then the default post category will be + * used. The return type then would be what $post_default_category. If the + * category is found, then it will always be an array. + * + * @package WordPress + * @subpackage XMLRPC + * @since 0.71 + * + * @global string $post_default_category Default XMLRPC post category. + * + * @param string $content XMLRPC XML Request content + * @return string|array List of categories or category name. + */ function xmlrpc_getpostcategory( $content ) { global $post_default_category; if ( preg_match( '/<category>(.+?)<\/category>/is', $content, $matchcat ) ) { @@ -684,7 +375,16 @@ function xmlrpc_getpostcategory( $content ) { return $post_category; } - +/** + * XMLRPC XML content without title and category elements. + * + * @package WordPress + * @subpackage XMLRPC + * @since 0.71 + * + * @param string $content XMLRPC XML Request content + * @return string XMLRPC XML Request content without title and category elements. + */ function xmlrpc_removepostdata( $content ) { $content = preg_replace( '/<title>(.+?)<\/title>/si', '', $content ); $content = preg_replace( '/<category>(.+?)<\/category>/si', '', $content ); @@ -693,77 +393,27 @@ function xmlrpc_removepostdata( $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 unknown - * @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. + * Check content for video and audio links to add as enclosures. * - * Technically, this can be used to write to any file handle when the global - * $debug is set to 1 or true. + * Will not add enclosures that have already been added and will + * remove enclosures that are no longer in the post. This is called as + * pingbacks and trackbacks. * * @package WordPress - * @subpackage Debug - * @since unknown - * @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. + * @since 1.5.0 * - * @package WordPress - * @subpackage Debug - * @since unknown - * @uses $debug Used for whether debugging is enabled. + * @uses $wpdb * - * @param resource $fp Debug File handle. + * @param string $content Post Content + * @param int $post_ID Post ID */ -function debug_fclose( $fp ) { - global $debug; - if ( 1 == $debug ) - fclose( $fp ); -} - function do_enclose( $content, $post_ID ) { global $wpdb; + + //TODO: Tidy this ghetto code up and make the debug code optional include_once( ABSPATH . WPINC . '/class-IXR.php' ); - $log = debug_fopen( ABSPATH . 'enclosures.log', 'a' ); $post_links = array(); - debug_fwrite( $log, 'BEGIN ' . date( 'YmdHis', time() ) . "\n" ); $pung = get_enclosed( $post_ID ); @@ -774,29 +424,51 @@ 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 + $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 ); + } + } - foreach ( $post_links_temp[0] as $link_test ) { + foreach ( (array) $post_links_temp[0] as $link_test ) { if ( !in_array( $link_test, $pung ) ) { // If we haven't pung it already - $test = parse_url( $link_test ); + $test = @parse_url( $link_test ); + if ( false === $test ) + continue; if ( isset( $test['query'] ) ) $post_links[] = $link_test; - elseif ( $test['path'] != '/' && $test['path'] != '' ) + elseif ( isset($test['path']) && ( $test['path'] != '/' ) && ($test['path'] != '' ) ) $post_links[] = $link_test; } } - foreach ( $post_links as $url ) { - if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, $url . '%' ) ) ) { + foreach ( (array) $post_links as $url ) { + if ( $url != '' && !$wpdb->get_var( $wpdb->prepare( "SELECT post_id FROM $wpdb->postmeta WHERE post_id = %d AND meta_key = 'enclosure' AND meta_value LIKE (%s)", $post_ID, like_escape( $url ) . '%' ) ) ) { + if ( $headers = wp_get_http_headers( $url) ) { - $len = (int) $headers['content-length']; - $type = $wpdb->escape( $headers['content-type'] ); + $len = isset( $headers['content-length'] ) ? (int) $headers['content-length'] : 0; + $type = isset( $headers['content-type'] ) ? $headers['content-type'] : ''; $allowed_types = array( 'video', 'audio' ); + + // Check to see if we can figure out the mime type from + // the extension + $url_parts = @parse_url( $url ); + if ( false !== $url_parts ) { + $extension = pathinfo( $url_parts['path'], PATHINFO_EXTENSION ); + if ( !empty( $extension ) ) { + foreach ( get_allowed_mime_types( ) as $exts => $mime ) { + if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) { + $type = $mime; + break; + } + } + } + } + if ( in_array( substr( $type, 0, strpos( $type, "/" ) ), $allowed_types ) ) { - $meta_value = "$url\n$len\n$type\n"; - $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->postmeta` ( `post_id` , `meta_key` , `meta_value` ) - VALUES ( %d, 'enclosure' , %s)", $post_ID, $meta_value ) ); + add_post_meta( $post_ID, 'enclosure', "$url\n$len\n$mime\n" ); } } } @@ -809,81 +481,52 @@ function do_enclose( $content, $post_ID ) { * If $file_path is a writable filename, this will do a GET request and write * the file to that path. * - * @since unknown + * @since 2.5.0 * - * @param string $url + * @param string $url URL to fetch. * @param string|bool $file_path Optional. File path to write request to. - * @param int $red Optional. Number of Redirects. Stops at 5 redirects. + * @param int $red (private) The number of Redirects followed, Upon 5 being hit, returns false. * @return bool|string False on failure and string of headers if HEAD request. */ function wp_get_http( $url, $file_path = false, $red = 1 ) { - global $wp_version; @set_time_limit( 60 ); if ( $red > 5 ) - return false; + return false; - $parts = parse_url( $url ); - $file = $parts['path'] . ( ( $parts['query'] ) ? '?' . $parts['query'] : '' ); - $host = $parts['host']; - if ( !isset( $parts['port'] ) ) - $parts['port'] = 80; + $options = array(); + $options['redirection'] = 5; - if ( $file_path ) - $request_type = 'GET'; + if ( false == $file_path ) + $options['method'] = 'HEAD'; else - $request_type = 'HEAD'; + $options['method'] = 'GET'; - $head = "$request_type $file HTTP/1.1\r\nHOST: $host\r\nUser-Agent: WordPress/" . $wp_version . "\r\n\r\n"; + $response = wp_remote_request($url, $options); - $fp = @fsockopen( $host, $parts['port'], $err_num, $err_msg, 3 ); - if ( !$fp ) + if ( is_wp_error( $response ) ) return false; - $response = ''; - fputs( $fp, $head ); - while ( !feof( $fp ) && strpos( $response, "\r\n\r\n" ) == false ) - $response .= fgets( $fp, 2048 ); - preg_match_all( '/(.*?): (.*)\r/', $response, $matches ); - $count = count( $matches[1] ); - for ( $i = 0; $i < $count; $i++ ) { - $key = strtolower( $matches[1][$i] ); - $headers["$key"] = $matches[2][$i]; + $headers = wp_remote_retrieve_headers( $response ); + $headers['response'] = wp_remote_retrieve_response_code( $response ); + + // WP_HTTP no longer follows redirects for HEAD requests. + if ( 'HEAD' == $options['method'] && in_array($headers['response'], array(301, 302)) && isset( $headers['location'] ) ) { + return wp_get_http( $headers['location'], $file_path, ++$red ); } - preg_match( '/.*([0-9]{3}).*/', $response, $return ); - $headers['response'] = $return[1]; // HTTP response code eg 204, 200, 404 - - $code = $headers['response']; - if ( ( '302' == $code || '301' == $code ) && isset( $headers['location'] ) ) { - fclose($fp); - return wp_get_http( $headers['location'], $file_path, ++$red ); - } - - // make a note of the final location, so the caller can tell if we were redirected or not - $headers['x-final-location'] = $url; - - // HEAD request only - if ( !$file_path ) { - fclose($fp); + if ( false == $file_path ) return $headers; - } - // GET request - fetch and write it to the supplied filename - $content_length = $headers['content-length']; - $got_bytes = 0; + // GET request - write it to the supplied filename $out_fp = fopen($file_path, 'w'); - while ( !feof($fp) ) { - $buf = fread( $fp, 4096 ); - fwrite( $out_fp, $buf ); - $got_bytes += strlen($buf); - // don't read past the content-length - if ($content_length and $got_bytes >= $content_length) - break; - } + if ( !$out_fp ) + return $headers; + fwrite( $out_fp, wp_remote_retrieve_body( $response ) ); fclose($out_fp); - fclose($fp); + clearstatcache(); + return $headers; } @@ -893,18 +536,24 @@ function wp_get_http( $url, $file_path = false, $red = 1 ) { * @since 1.5.1 * * @param string $url - * @param int $red Optional. Number of redirects. + * @param bool $deprecated Not Used. * @return bool|string False on failure, headers on success. */ -function wp_get_http_headers( $url, $red = 1 ) { - return wp_get_http( $url, false, $red ); +function wp_get_http_headers( $url, $deprecated = false ) { + if ( !empty( $deprecated ) ) + _deprecated_argument( __FUNCTION__, '2.7' ); + + $response = wp_remote_head( $url ); + + if ( is_wp_error( $response ) ) + return false; + + return wp_remote_retrieve_headers( $response ); } /** * Whether today is a new day. * - * {@internal Need to find out how this function is used.}} - * * @since 0.71 * @uses $day Today * @uses $previousday Previous day @@ -912,8 +561,8 @@ function wp_get_http_headers( $url, $red = 1 ) { * @return int 1 when new day, 0 if not a new day. */ function is_new_day() { - global $day, $previousday; - if ( $day != $previousday ) + global $currentday, $previousday; + if ( $currentday != $previousday ) return 1; else return 0; @@ -929,13 +578,43 @@ function is_new_day() { * @link http://us2.php.net/manual/en/function.http-build-query.php more on what * http_build_query() does. * - * @since unknown + * @since 2.3.0 * * @param array $data URL-encode key/value pairs. * @return string URL encoded string */ function build_query( $data ) { - return _http_build_query( $data, NULL, '&', '', false ); + return _http_build_query( $data, null, '&', '', false ); +} + +// from php.net (modified by Mark Jaquith to behave like the native PHP5 function) +function _http_build_query($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); } /** @@ -945,15 +624,16 @@ 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 * * @param mixed $param1 Either newkey or an associative_array * @param mixed $param2 Either newvalue or oldquery or uri * @param mixed $param3 Optional. Old query or uri - * @return unknown + * @return string New URL query string. */ function add_query_arg() { $ret = ''; @@ -1007,7 +687,7 @@ function add_query_arg() { $qs[func_get_arg( 0 )] = func_get_arg( 1 ); } - foreach ( $qs as $k => $v ) { + foreach ( (array) $qs as $k => $v ) { if ( $v === false ) unset( $qs[$k] ); } @@ -1027,11 +707,11 @@ function add_query_arg() { * * @param string|array $key Query key or keys to remove. * @param bool $query When false uses the $_SERVER value. - * @return unknown + * @return string New URL query string. */ function remove_query_arg( $key, $query=false ) { if ( is_array( $key ) ) { // removing multiple keys - foreach ( (array) $key as $k ) + foreach ( $key as $k ) $query = add_query_arg( $k, false, $query ); return $query; } @@ -1041,19 +721,17 @@ function remove_query_arg( $key, $query=false ) { /** * Walks the array while sanitizing the contents. * - * @uses $wpdb Used to sanitize values + * @since 0.71 * * @param array $array Array to used to walk while sanitizing contents. * @return array Sanitized $array. */ function add_magic_quotes( $array ) { - global $wpdb; - - foreach ( $array as $k => $v ) { + foreach ( (array) $array as $k => $v ) { if ( is_array( $v ) ) { $array[$k] = add_magic_quotes( $v ); } else { - $array[$k] = $wpdb->escape( $v ); + $array[$k] = addslashes( $v ); } } return $array; @@ -1062,55 +740,41 @@ function add_magic_quotes( $array ) { /** * HTTP request for URI to retrieve content. * - * Tries to retrieve the HTTP content with fopen first and then using cURL, if - * fopen can't be used. - * - * @since unknown + * @since 1.5.1 + * @uses wp_remote_get() * * @param string $uri URI/URL of web page to retrieve. - * @return string HTTP content. + * @return bool|string HTTP content. False on failure. */ function wp_remote_fopen( $uri ) { - $timeout = 10; $parsed_url = @parse_url( $uri ); if ( !$parsed_url || !is_array( $parsed_url ) ) return false; - if ( !isset( $parsed_url['scheme'] ) || !in_array( $parsed_url['scheme'], array( 'http','https' ) ) ) - $uri = 'http://' . $uri; + $options = array(); + $options['timeout'] = 10; - if ( ini_get( 'allow_url_fopen' ) ) { - $fp = @fopen( $uri, 'r' ); - if ( !$fp ) - return false; + $response = wp_remote_get( $uri, $options ); - //stream_set_timeout($fp, $timeout); // Requires php 4.3 - $linea = ''; - while ( $remote_read = fread( $fp, 4096 ) ) - $linea .= $remote_read; - fclose( $fp ); - return $linea; - } elseif ( function_exists( 'curl_init' ) ) { - $handle = curl_init(); - curl_setopt( $handle, CURLOPT_URL, $uri); - curl_setopt( $handle, CURLOPT_CONNECTTIMEOUT, 1 ); - curl_setopt( $handle, CURLOPT_RETURNTRANSFER, 1 ); - curl_setopt( $handle, CURLOPT_TIMEOUT, $timeout ); - $buffer = curl_exec( $handle ); - curl_close( $handle ); - return $buffer; - } else { + if ( is_wp_error( $response ) ) return false; - } -} + return wp_remote_retrieve_body( $response ); +} +/** + * Set up the WordPress query. + * + * @since 2.0.0 + * + * @param string $query_vars Default WP_Query arguments. + */ function wp( $query_vars = '' ) { global $wp, $wp_query, $wp_the_query; $wp->main( $query_vars ); - if( !isset($wp_the_query) ) + if ( !isset($wp_the_query) ) $wp_the_query = $wp_query; } @@ -1131,6 +795,7 @@ function get_status_header_desc( $code ) { $wp_header_to_desc = array( 100 => 'Continue', 101 => 'Switching Protocols', + 102 => 'Processing', 200 => 'OK', 201 => 'Created', @@ -1139,6 +804,8 @@ function get_status_header_desc( $code ) { 204 => 'No Content', 205 => 'Reset Content', 206 => 'Partial Content', + 207 => 'Multi-Status', + 226 => 'IM Used', 300 => 'Multiple Choices', 301 => 'Moved Permanently', @@ -1146,10 +813,12 @@ function get_status_header_desc( $code ) { 303 => 'See Other', 304 => 'Not Modified', 305 => 'Use Proxy', + 306 => 'Reserved', 307 => 'Temporary Redirect', 400 => 'Bad Request', 401 => 'Unauthorized', + 402 => 'Payment Required', 403 => 'Forbidden', 404 => 'Not Found', 405 => 'Method Not Allowed', @@ -1165,13 +834,20 @@ function get_status_header_desc( $code ) { 415 => 'Unsupported Media Type', 416 => 'Requested Range Not Satisfiable', 417 => 'Expectation Failed', + 422 => 'Unprocessable Entity', + 423 => 'Locked', + 424 => 'Failed Dependency', + 426 => 'Upgrade Required', 500 => 'Internal Server Error', 501 => 'Not Implemented', 502 => 'Bad Gateway', 503 => 'Service Unavailable', 504 => 'Gateway Timeout', - 505 => 'HTTP Version Not Supported' + 505 => 'HTTP Version Not Supported', + 506 => 'Variant Also Negotiates', + 507 => 'Insufficient Storage', + 510 => 'Not Extended' ); } @@ -1184,13 +860,13 @@ function get_status_header_desc( $code ) { /** * Set HTTP status header. * - * @since unknown + * @since 2.0.0 * @uses apply_filters() Calls 'status_header' on status header string, HTTP * HTTP code, HTTP code description, and protocol string as separate * parameters. * * @param int $header HTTP status code - * @return null Does not return anything. + * @return unknown */ function status_header( $header ) { $text = get_status_header_desc( $header ); @@ -1205,10 +881,32 @@ function status_header( $header ) { if ( function_exists( 'apply_filters' ) ) $status_header = apply_filters( 'status_header', $status_header, $header, $text, $protocol ); - if ( version_compare( phpversion(), '4.3.0', '>=' ) ) - return @header( $status_header, true, $header ); - else - return @header( $status_header ); + return @header( $status_header, true, $header ); +} + +/** + * Gets the header information to prevent caching. + * + * The several different headers cover the different ways cache prevention is handled + * by different browsers + * + * @since 2.8.0 + * + * @uses apply_filters() + * @return array The associative array of header names and field values. + */ +function wp_get_nocache_headers() { + $headers = array( + 'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT', + 'Last-Modified' => gmdate( 'D, d M Y H:i:s' ) . ' GMT', + 'Cache-Control' => 'no-cache, must-revalidate, max-age=0', + 'Pragma' => 'no-cache', + ); + + if ( function_exists('apply_filters') ) { + $headers = (array) apply_filters('nocache_headers', $headers); + } + return $headers; } /** @@ -1218,13 +916,12 @@ function status_header( $header ) { * be sent so that all of them get the point that no caching should occur. * * @since 2.0.0 + * @uses wp_get_nocache_headers() */ function nocache_headers() { - // why are these @-silenced when other header calls aren't? - @header( 'Expires: Wed, 11 Jan 1984 05:00:00 GMT' ); - @header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' ); - @header( 'Cache-Control: no-cache, must-revalidate, max-age=0' ); - @header( 'Pragma: no-cache' ); + $headers = wp_get_nocache_headers(); + foreach( $headers as $name => $field_value ) + @header("{$name}: {$field_value}"); } /** @@ -1263,7 +960,18 @@ function bool_from_yn( $yn ) { return ( strtolower( $yn ) == 'y' ); } - +/** + * Loads the feed template from the use of an action hook. + * + * If the feed action does not have a hook, then the function will die with a + * message telling the visitor that the feed is not valid. + * + * It is better to only have one hook for each feed. + * + * @since 2.1.0 + * @uses $wp_query Used to tell if the use a comment feed. + * @uses do_action() Calls 'do_feed_$feed' hook, if a hook exists for the feed. + */ function do_feed() { global $wp_query; @@ -1277,8 +985,8 @@ function do_feed() { $hook = 'do_feed_' . $feed; if ( !has_action($hook) ) { - $message = sprintf( __( 'ERROR: %s is not a valid feed template' ), wp_specialchars($feed)); - wp_die($message); + $message = sprintf( __( 'ERROR: %s is not a valid feed template.' ), esc_html($feed)); + wp_die( $message, '', array( 'response' => 404 ) ); } do_action( $hook, $wp_query->is_comment_feed ); @@ -1294,7 +1002,7 @@ function do_feed_rdf() { } /** - * Load the RSS 1.0 Feed Template + * Load the RSS 1.0 Feed Template. * * @since 2.1.0 */ @@ -1331,68 +1039,179 @@ 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' ); - if ( '0' == get_option( 'blog_public' ) ) { - echo "User-agent: *\n"; - echo "Disallow: /\n"; + $output = "User-agent: *\n"; + $public = get_option( 'blog_public' ); + if ( '0' == $public ) { + $output .= "Disallow: /\n"; } else { - echo "User-agent: *\n"; - echo "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); +} +/** + * Test whether blog is already installed. + * + * The cache will be checked first. If you have a cache plugin, which saves the + * cache values, then this will work. If you use the default WordPress cache, + * and the database goes away, then you might have problems. + * + * Checks for the option siteurl for whether WordPress is installed. + * + * @since 2.1.0 + * @uses $wpdb + * + * @return bool Whether blog is already installed. + */ function is_blog_installed() { global $wpdb; - // Check cache first. If options table goes away and we have true cached, oh well. - if ( wp_cache_get('is_blog_installed') ) + // Check cache first. If options table goes away and we have true cached, oh well. + if ( wp_cache_get( 'is_blog_installed' ) ) return true; $suppress = $wpdb->suppress_errors(); - $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" ); - $wpdb->suppress_errors($suppress); + if ( ! defined( 'WP_INSTALLING' ) ) { + $alloptions = wp_load_alloptions(); + } + // If siteurl is not set to autoload, check it specifically + if ( !isset( $alloptions['siteurl'] ) ) + $installed = $wpdb->get_var( "SELECT option_value FROM $wpdb->options WHERE option_name = 'siteurl'" ); + else + $installed = $alloptions['siteurl']; + $wpdb->suppress_errors( $suppress ); - $installed = !empty( $installed ) ? true : false; - wp_cache_set('is_blog_installed', $installed); + $installed = !empty( $installed ); + wp_cache_set( 'is_blog_installed', $installed ); - return $installed; -} + if ( $installed ) + return true; + + // If visiting repair.php, return true and let it take over. + if ( defined( 'WP_REPAIRING' ) ) + return true; + + $suppress = $wpdb->suppress_errors(); + + // Loop over the WP tables. If none exist, then scratch install is allowed. + // If one or more exist, suggest table repair since we got here because the options + // table could not be accessed. + $wp_tables = $wpdb->tables(); + foreach ( $wp_tables as $table ) { + // The existence of custom user tables shouldn't suggest an insane state or prevent a clean install. + if ( defined( 'CUSTOM_USER_TABLE' ) && CUSTOM_USER_TABLE == $table ) + continue; + if ( defined( 'CUSTOM_USER_META_TABLE' ) && CUSTOM_USER_META_TABLE == $table ) + continue; + + if ( ! $wpdb->get_results( "DESCRIBE $table;" ) ) + continue; + + // One or more tables exist. We are insane. + + wp_load_translations_early(); + // Die with a DB error. + $wpdb->error = sprintf( __( 'One or more database tables are unavailable. The database may need to be <a href="%s">repaired</a>.' ), 'maint/repair.php?referrer=is_blog_installed' ); + dead_db(); + } + + $wpdb->suppress_errors( $suppress ); + + wp_cache_set( 'is_blog_installed', false ); + + return false; +} +/** + * Retrieve URL with nonce added to URL query. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @param string $actionurl URL to add nonce action + * @param string $action Optional. Nonce action name + * @return string URL with nonce action added. + */ function wp_nonce_url( $actionurl, $action = -1 ) { $actionurl = str_replace( '&', '&', $actionurl ); - return wp_specialchars( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) ); + return esc_html( add_query_arg( '_wpnonce', wp_create_nonce( $action ), $actionurl ) ); } - +/** + * Retrieve or display nonce hidden field for forms. + * + * The nonce field is used to validate that the contents of the form came from + * the location on the current site and not somewhere else. The nonce does not + * offer absolute protection, but should protect against most cases. It is very + * important to use nonce field in forms. + * + * The $action and $name are optional, but if you want to have better security, + * it is strongly suggested to set those two parameters. It is easier to just + * call the function without any parameters, because validation of the nonce + * doesn't require any parameters, but since crackers know what the default is + * it won't be difficult for them to find a way around your nonce and cause + * damage. + * + * The input name will be whatever $name value you gave. The input value will be + * the nonce creation value. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @param string $action Optional. Action name. + * @param string $name Optional. Nonce name. + * @param bool $referer Optional, default true. Whether to set the referer field for validation. + * @param bool $echo Optional, default true. Whether to display or return hidden form field. + * @return string Nonce field. + */ function wp_nonce_field( $action = -1, $name = "_wpnonce", $referer = true , $echo = true ) { - $name = attribute_escape( $name ); + $name = esc_attr( $name ); $nonce_field = '<input type="hidden" id="' . $name . '" name="' . $name . '" value="' . wp_create_nonce( $action ) . '" />'; + + if ( $referer ) + $nonce_field .= wp_referer_field( false ); + if ( $echo ) echo $nonce_field; - - if ( $referer ) - wp_referer_field( $echo, 'previous' ); - + return $nonce_field; } - -function wp_referer_field( $echo = true) { - $ref = attribute_escape( $_SERVER['REQUEST_URI'] ); +/** + * Retrieve or display referer hidden field for forms. + * + * The referer link is the current Request URI from the server super global. The + * input name is '_wp_http_referer', in case you wanted to check manually. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @param bool $echo Whether to echo or return the referer field. + * @return string Referer field. + */ +function wp_referer_field( $echo = true ) { + $ref = esc_attr( $_SERVER['REQUEST_URI'] ); $referer_field = '<input type="hidden" name="_wp_http_referer" value="'. $ref . '" />'; if ( $echo ) @@ -1400,38 +1219,86 @@ function wp_referer_field( $echo = true) { return $referer_field; } +/** + * Retrieve or display original referer hidden field for forms. + * + * The input name is '_wp_original_http_referer' and will be either the same + * value of {@link wp_referer_field()}, if that was posted already or it will + * be the current page, if it doesn't exist. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @param bool $echo Whether to echo the original http referer + * @param string $jump_back_to Optional, default is 'current'. Can be 'previous' or page you want to jump back to. + * @return string Original referer field. + */ function wp_original_referer_field( $echo = true, $jump_back_to = 'current' ) { $jump_back_to = ( 'previous' == $jump_back_to ) ? wp_get_referer() : $_SERVER['REQUEST_URI']; $ref = ( wp_get_original_referer() ) ? wp_get_original_referer() : $jump_back_to; - $orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . attribute_escape( stripslashes( $ref ) ) . '" />'; + $orig_referer_field = '<input type="hidden" name="_wp_original_http_referer" value="' . esc_attr( stripslashes( $ref ) ) . '" />'; if ( $echo ) echo $orig_referer_field; return $orig_referer_field; } - +/** + * Retrieve referer from '_wp_http_referer' or HTTP referer. If it's the same + * as the current request URL, will return false. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @return string|bool False on failure. Referer URL on success. + */ function wp_get_referer() { + $ref = false; if ( ! empty( $_REQUEST['_wp_http_referer'] ) ) $ref = $_REQUEST['_wp_http_referer']; else if ( ! empty( $_SERVER['HTTP_REFERER'] ) ) $ref = $_SERVER['HTTP_REFERER']; - if ( $ref !== $_SERVER['REQUEST_URI'] ) + if ( $ref && $ref !== $_SERVER['REQUEST_URI'] ) return $ref; return false; } - +/** + * Retrieve original referer that was posted, if it exists. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @return string|bool False if no original referer or original referer if set. + */ function wp_get_original_referer() { if ( !empty( $_REQUEST['_wp_original_http_referer'] ) ) return $_REQUEST['_wp_original_http_referer']; return false; } - +/** + * Recursive directory creation based on full path. + * + * Will attempt to set permissions on folders. + * + * @since 2.0.1 + * + * @param string $target Full path to attempt to create. + * @return bool Whether the path was created. True if path already exists. + */ function wp_mkdir_p( $target ) { // from php.net/mkdir user contributed notes $target = str_replace( '//', '/', $target ); + + // safe mode fails with a trailing slash under certain PHP versions. + $target = rtrim($target, '/'); // Use rtrim() instead of untrailingslashit to avoid formatting.php dependency. + if ( empty($target) ) + $target = '/'; + if ( file_exists( $target ) ) return @is_dir( $target ); @@ -1446,19 +1313,26 @@ function wp_mkdir_p( $target ) { } // If the above failed, attempt to create the parent node, then try again. - if ( wp_mkdir_p( dirname( $target ) ) ) + if ( ( $target != '/' ) && ( wp_mkdir_p( dirname( $target ) ) ) ) return wp_mkdir_p( $target ); return false; } -// Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows') +/** + * Test if a give filesystem path is absolute ('/foo/bar', 'c:\windows'). + * + * @since 2.5.0 + * + * @param string $path File path + * @return bool True if path is absolute, false is not absolute. + */ function path_is_absolute( $path ) { // this is definitive if true but fails if $path does not exist or contains a symbolic link if ( realpath($path) == $path ) return true; - if ( strlen($path) == 0 || $path{0} == '.' ) + if ( strlen($path) == 0 || $path[0] == '.' ) return false; // windows allows absolute paths like this @@ -1466,10 +1340,20 @@ 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] == '\\' ); } -// Join two filesystem paths together (e.g. 'give me $path relative to $base') +/** + * Join two filesystem paths together (e.g. 'give me $path relative to $base'). + * + * If the $path is absolute, then it the full path is returned. + * + * @since 2.5.0 + * + * @param string $base + * @param string $path + * @return string The path with the base or absolute path. + */ function path_join( $base, $path ) { if ( path_is_absolute($path) ) return $path; @@ -1477,32 +1361,112 @@ function path_join( $base, $path ) { return rtrim($base, '/') . '/' . ltrim($path, '/'); } -// Returns an array containing the current upload directory's path and url, or an error message. -function wp_upload_dir( $time = NULL ) { +/** + * Determines a writable directory for temporary files. + * Function's preference is to WP_CONTENT_DIR followed by the return value of <code>sys_get_temp_dir()</code>, before finally defaulting to /tmp/ + * + * In the event that this function does not find a writable location, It may be overridden by the <code>WP_TEMP_DIR</code> constant in your <code>wp-config.php</code> file. + * + * @since 2.5.0 + * + * @return string Writable temporary directory + */ +function get_temp_dir() { + static $temp; + if ( defined('WP_TEMP_DIR') ) + return trailingslashit(WP_TEMP_DIR); + + if ( $temp ) + return trailingslashit($temp); + + $temp = WP_CONTENT_DIR . '/'; + if ( is_dir($temp) && @is_writable($temp) ) + return $temp; + + if ( function_exists('sys_get_temp_dir') ) { + $temp = sys_get_temp_dir(); + if ( @is_writable($temp) ) + return trailingslashit($temp); + } + + $temp = ini_get('upload_tmp_dir'); + if ( is_dir($temp) && @is_writable($temp) ) + return trailingslashit($temp); + + $temp = '/tmp/'; + return $temp; +} + +/** + * Get an array containing the current upload directory's path and url. + * + * Checks the 'upload_path' option, which should be from the web root folder, + * and if it isn't empty it will be used. If it is empty, then the path will be + * 'WP_CONTENT_DIR/uploads'. If the 'UPLOADS' constant is defined, then it will + * override the 'upload_path' option and 'WP_CONTENT_DIR/uploads' path. + * + * The upload URL path is set either by the 'upload_url_path' option or by using + * the 'WP_CONTENT_URL' constant and appending '/uploads' to the path. + * + * If the 'uploads_use_yearmonth_folders' is set to true (checkbox if checked in + * the administration settings panel), then the time will be used. The format + * will be year first and then month. + * + * If the path couldn't be created, then an error will be returned with the key + * 'error' containing the error message. The error suggests that the parent + * directory is not writable by the server. + * + * On success, the returned array will have many indices: + * 'path' - base directory and sub directory or full path to upload directory. + * 'url' - base url and sub directory or absolute URL to upload directory. + * 'subdir' - sub directory if uploads use year/month folders option is on. + * 'basedir' - path without subdir. + * 'baseurl' - URL path without subdir. + * 'error' - set to false. + * + * @since 2.0.0 + * @uses apply_filters() Calls 'upload_dir' on returned array. + * + * @param string $time Optional. Time formatted in 'yyyy/mm'. + * @return array See above for description. + */ +function wp_upload_dir( $time = null ) { + global $switched; $siteurl = get_option( 'siteurl' ); $upload_path = get_option( 'upload_path' ); $upload_path = trim($upload_path); - if ( empty($upload_path) ) + $main_override = is_multisite() && defined( 'MULTISITE' ) && is_main_site(); + if ( empty($upload_path) ) { $dir = WP_CONTENT_DIR . '/uploads'; - else + } 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 ); + } + } - // $dir is absolute, $path is (maybe) relative to ABSPATH - $dir = path_join( ABSPATH, $dir ); - if ( !$url = get_option( 'upload_url_path' ) ) { - if ( empty($upload_path) or ( $upload_path == $dir ) ) + if ( empty($upload_path) || ( 'wp-content/uploads' == $upload_path ) || ( $upload_path == $dir ) ) $url = WP_CONTENT_URL . '/uploads'; else $url = trailingslashit( $siteurl ) . $upload_path; } - if ( defined('UPLOADS') ) { + if ( defined('UPLOADS') && !$main_override && ( !isset( $switched ) || $switched === false ) ) { $dir = ABSPATH . UPLOADS; $url = trailingslashit( $siteurl ) . UPLOADS; } - $bdir = $dir; + if ( is_multisite() && !$main_override && ( !isset( $switched ) || $switched === false ) ) { + if ( defined( 'BLOGUPLOADDIR' ) ) + $dir = untrailingslashit(BLOGUPLOADDIR); + $url = str_replace( UPLOADS, 'files', $url ); + } + + $bdir = $dir; $burl = $url; $subdir = ''; @@ -1518,43 +1482,67 @@ 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 ) ); + // Make sure we have an uploads dir - if ( ! wp_mkdir_p( $dir ) ) { - $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $dir ); + if ( ! wp_mkdir_p( $uploads['path'] ) ) { + $message = sprintf( __( 'Unable to create directory %s. Is its parent directory writable by the server?' ), $uploads['path'] ); return array( 'error' => $message ); } - - $uploads = array( 'path' => $dir, 'url' => $url, 'subdir' => $subdir, 'basedir' => $bdir, 'baseurl' => $burl, 'error' => false ); - return apply_filters( 'upload_dir', $uploads ); + return $uploads; } -// return a filename that is sanitized and unique for the given directory -function wp_unique_filename( $dir, $filename, $unique_filename_callback = NULL ) { - $filename = strtolower( $filename ); +/** + * Get a filename that is sanitized and unique for the given directory. + * + * If the filename is not unique, then a number will be added to the filename + * before the extension, and will continue adding numbers until the filename is + * unique. + * + * The callback is passed three parameters, the first one is the directory, the + * second is the filename, and the third is the extension. + * + * @since 2.5.0 + * + * @param string $dir + * @param string $filename + * @param mixed $unique_filename_callback Callback. + * @return string New filename, if given wasn't unique. + */ +function wp_unique_filename( $dir, $filename, $unique_filename_callback = null ) { + // sanitize the file name before we begin processing + $filename = sanitize_file_name($filename); + // separate the filename into a name and extension $info = pathinfo($filename); - $ext = $info['extension']; - $name = basename($filename, ".{$ext}"); - + $ext = !empty($info['extension']) ? '.' . $info['extension'] : ''; + $name = basename($filename, $ext); + // edge case: if file is named '.ext', treat as an empty name - if( $name === ".$ext" ) + if ( $name === $ext ) $name = ''; - // Increment the file number until we have a unique file to save in $dir. Use $override['unique_filename_callback'] if supplied. - if ( $unique_filename_callback && function_exists( $unique_filename_callback ) ) { - $filename = $unique_filename_callback( $dir, $name ); + // Increment the file number until we have a unique file to save in $dir. Use callback if supplied. + if ( $unique_filename_callback && is_callable( $unique_filename_callback ) ) { + $filename = call_user_func( $unique_filename_callback, $dir, $name, $ext ); } else { $number = ''; - if ( empty( $ext ) ) - $ext = ''; - else - $ext = strtolower( ".$ext" ); - - $filename = str_replace( $ext, '', $filename ); - // Strip % so the server doesn't try to decode entities. - $filename = str_replace('%', '', sanitize_title_with_dashes( $filename ) ) . $ext; + // change '.ext' to lower case + if ( $ext && strtolower($ext) != $ext ) { + $ext2 = strtolower($ext); + $filename2 = preg_replace( '|' . preg_quote($ext) . '$|', $ext2, $filename ); + + // check for both lower and upper case extension or image sub-sizes may be overwritten + while ( file_exists($dir . "/$filename") || file_exists($dir . "/$filename2") ) { + $new_number = $number + 1; + $filename = str_replace( "$number$ext", "$new_number$ext", $filename ); + $filename2 = str_replace( "$number$ext2", "$new_number$ext2", $filename2 ); + $number = $new_number; + } + return $filename2; + } while ( file_exists( $dir . "/$filename" ) ) { if ( '' == "$number$ext" ) @@ -1567,19 +1555,51 @@ function wp_unique_filename( $dir, $filename, $unique_filename_callback = NULL ) return $filename; } -function wp_upload_bits( $name, $deprecated, $bits, $time = NULL ) { +/** + * Create a file in the upload folder with given content. + * + * If there is an error, then the key 'error' will exist with the error message. + * If success, then the key 'file' will have the unique file path, the 'url' key + * will have the link to the new file. and the 'error' key will be set to false. + * + * This function will not move an uploaded file to the upload folder. It will + * create a new file with the content in $bits parameter. If you move the upload + * file, read the content of the uploaded file, and then you can give the + * filename and content to this function, which will add it to the upload + * folder. + * + * The permissions will be set on the new file automatically by this function. + * + * @since 2.0.0 + * + * @param string $name + * @param null $deprecated Never used. Set to null. + * @param mixed $bits File content + * @param string $time Optional. Time formatted in 'yyyy/mm'. + * @return array + */ +function wp_upload_bits( $name, $deprecated, $bits, $time = null ) { + if ( !empty( $deprecated ) ) + _deprecated_argument( __FUNCTION__, '2.0' ); + if ( empty( $name ) ) - return array( 'error' => __( "Empty filename" ) ); + return array( 'error' => __( 'Empty filename' ) ); $wp_filetype = wp_check_filetype( $name ); if ( !$wp_filetype['ext'] ) - return array( 'error' => __( "Invalid file type" ) ); + return array( 'error' => __( 'Invalid file type' ) ); $upload = wp_upload_dir( $time ); if ( $upload['error'] !== false ) return $upload; + $upload_bits_error = apply_filters( 'wp_upload_bits', array( 'name' => $name, 'bits' => $bits, 'time' => $time ) ); + if ( !is_array( $upload_bits_error ) ) { + $upload[ 'error' ] = $upload_bits_error; + return $upload; + } + $filename = wp_unique_filename( $upload['path'], $name ); $new_file = $upload['path'] . "/$filename"; @@ -1594,11 +1614,14 @@ function wp_upload_bits( $name, $deprecated, $bits, $time = NULL ) { @fwrite( $ifp, $bits ); fclose( $ifp ); + clearstatcache(); + // Set correct file permissions $stat = @ stat( dirname( $new_file ) ); $perms = $stat['mode'] & 0007777; $perms = $perms & 0000666; @ chmod( $new_file, $perms ); + clearstatcache(); // Compute the URL $url = $upload['url'] . "/$filename"; @@ -1606,25 +1629,142 @@ function wp_upload_bits( $name, $deprecated, $bits, $time = NULL ) { return array( 'file' => $new_file, 'url' => $url, 'error' => false ); } +/** + * Retrieve the file type based on the extension name. + * + * @package WordPress + * @since 2.5.0 + * @uses apply_filters() Calls 'ext2type' hook on default supported types. + * + * @param string $ext The extension to search. + * @return string|null The file type, example: audio, video, document, spreadsheet, etc. Null if not found. + */ function wp_ext2type( $ext ) { - $ext2type = apply_filters('ext2type', array( - 'audio' => array('aac','ac3','aif','aiff','mp1','mp2','mp3','m3a','m4a','m4b','ogg','ram','wav','wma'), - 'video' => array('asf','avi','divx','dv','mov','mpg','mpeg','mp4','mpv','ogm','qt','rm','vob','wmv'), - 'document' => array('doc','pages','odt','rtf','pdf'), - 'spreadsheet' => array('xls','numbers','ods'), - 'interactive' => array('ppt','key','odp','swf'), - 'text' => array('txt'), - 'archive' => array('tar','bz2','gz','cab','dmg','rar','sea','sit','sqx','zip'), - 'code' => array('css','html','php','js'), + $ext2type = apply_filters( 'ext2type', array( + 'audio' => array( 'aac', 'ac3', 'aif', 'aiff', 'm3a', 'm4a', 'm4b', 'mka', 'mp1', 'mp2', 'mp3', 'ogg', 'oga', 'ram', 'wav', 'wma' ), + 'video' => array( 'asf', 'avi', 'divx', 'dv', 'flv', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'mpv', 'ogm', 'ogv', 'qt', 'rm', 'vob', 'wmv' ), + 'document' => array( 'doc', 'docx', 'docm', 'dotm', 'odt', 'pages', 'pdf', 'rtf', 'wp', 'wpd' ), + 'spreadsheet' => array( 'numbers', 'ods', 'xls', 'xlsx', 'xlsb', 'xlsm' ), + 'interactive' => array( 'key', 'ppt', 'pptx', 'pptm', 'odp', 'swf' ), + 'text' => array( 'asc', 'csv', 'tsv', 'txt' ), + 'archive' => array( 'bz2', 'cab', 'dmg', 'gz', 'rar', 'sea', 'sit', 'sqx', 'tar', 'tgz', 'zip', '7z' ), + 'code' => array( 'css', 'htm', 'html', 'php', 'js' ), )); foreach ( $ext2type as $type => $exts ) - if ( in_array($ext, $exts) ) + if ( in_array( $ext, $exts ) ) return $type; } +/** + * Retrieve the file type from the file name. + * + * You can optionally define the mime array, if needed. + * + * @since 2.0.4 + * + * @param string $filename File name or path. + * @param array $mimes Optional. Key is the file extension with value as the mime type. + * @return array Values with extension first and mime type. + */ function wp_check_filetype( $filename, $mimes = null ) { - // Accepted MIME types are set here as PCRE unless provided. - $mimes = ( is_array( $mimes ) ) ? $mimes : apply_filters( 'upload_mimes', array( + if ( empty($mimes) ) + $mimes = get_allowed_mime_types(); + $type = false; + $ext = false; + + foreach ( $mimes as $ext_preg => $mime_match ) { + $ext_preg = '!\.(' . $ext_preg . ')$!i'; + if ( preg_match( $ext_preg, $filename, $ext_matches ) ) { + $type = $mime_match; + $ext = $ext_matches[1]; + break; + } + } + + return compact( 'ext', 'type' ); +} + +/** + * Attempt to determine the real file type of a file. + * If unable to, the file name extension will be used to determine type. + * + * If it's determined that the extension does not match the file's real type, + * then the "proper_filename" value will be set with a proper filename and extension. + * + * Currently this function only supports validating images known to getimagesize(). + * + * @since 3.0.0 + * + * @param string $file Full path to the image. + * @param string $filename The filename of the image (may differ from $file due to $file being in a tmp directory) + * @param array $mimes Optional. Key is the file extension with value as the mime type. + * @return array Values for the extension, MIME, and either a corrected filename or false if original $filename is valid + */ +function wp_check_filetype_and_ext( $file, $filename, $mimes = null ) { + + $proper_filename = false; + + // Do basic extension validation and MIME mapping + $wp_filetype = wp_check_filetype( $filename, $mimes ); + extract( $wp_filetype ); + + // We can't do any further validation without a file to work with + if ( ! file_exists( $file ) ) + return compact( 'ext', 'type', 'proper_filename' ); + + // We're able to validate images using GD + if ( $type && 0 === strpos( $type, 'image/' ) && function_exists('getimagesize') ) { + + // Attempt to figure out what type of image it actually is + $imgstats = @getimagesize( $file ); + + // If getimagesize() knows what kind of image it really is and if the real MIME doesn't match the claimed MIME + if ( !empty($imgstats['mime']) && $imgstats['mime'] != $type ) { + // This is a simplified array of MIMEs that getimagesize() can detect and their extensions + // You shouldn't need to use this filter, but it's here just in case + $mime_to_ext = apply_filters( 'getimagesize_mimes_to_exts', array( + 'image/jpeg' => 'jpg', + 'image/png' => 'png', + 'image/gif' => 'gif', + 'image/bmp' => 'bmp', + 'image/tiff' => 'tif', + ) ); + + // Replace whatever is after the last period in the filename with the correct extension + if ( ! empty( $mime_to_ext[ $imgstats['mime'] ] ) ) { + $filename_parts = explode( '.', $filename ); + array_pop( $filename_parts ); + $filename_parts[] = $mime_to_ext[ $imgstats['mime'] ]; + $new_filename = implode( '.', $filename_parts ); + + if ( $new_filename != $filename ) + $proper_filename = $new_filename; // Mark that it changed + + // Redefine the extension / MIME + $wp_filetype = wp_check_filetype( $new_filename, $mimes ); + extract( $wp_filetype ); + } + } + } + + // Let plugins try and validate other types of files + // Should return an array in the style of array( 'ext' => $ext, 'type' => $type, 'proper_filename' => $proper_filename ) + return apply_filters( 'wp_check_filetype_and_ext', compact( 'ext', 'type', 'proper_filename' ), $file, $filename, $mimes ); +} + +/** + * Retrieve list of allowed mime types and file extensions. + * + * @since 2.8.6 + * + * @return array Array of mime types keyed by the file extension regex corresponding to those types. + */ +function get_allowed_mime_types() { + static $mimes = false; + + if ( !$mimes ) { + // Accepted MIME types are set here as PCRE unless provided. + $mimes = apply_filters( 'upload_mimes', array( 'jpg|jpeg|jpe' => 'image/jpeg', 'gif' => 'image/gif', 'png' => 'image/png', @@ -1633,32 +1773,48 @@ function wp_check_filetype( $filename, $mimes = null ) { 'ico' => 'image/x-icon', 'asf|asx|wax|wmv|wmx' => 'video/asf', 'avi' => 'video/avi', + 'divx' => 'video/divx', + 'flv' => 'video/x-flv', 'mov|qt' => 'video/quicktime', - 'mpeg|mpg|mpe|mp4' => 'video/mpeg', - 'txt|c|cc|h' => 'text/plain', + 'mpeg|mpg|mpe' => 'video/mpeg', + 'txt|asc|c|cc|h' => 'text/plain', + 'csv' => 'text/csv', + 'tsv' => 'text/tab-separated-values', + 'ics' => 'text/calendar', 'rtx' => 'text/richtext', 'css' => 'text/css', 'htm|html' => 'text/html', - 'mp3|m4a' => 'audio/mpeg', + 'mp3|m4a|m4b' => 'audio/mpeg', + 'mp4|m4v' => 'video/mp4', 'ra|ram' => 'audio/x-realaudio', 'wav' => 'audio/wav', - 'ogg' => 'audio/ogg', + 'ogg|oga' => 'audio/ogg', + 'ogv' => 'video/ogg', 'mid|midi' => 'audio/midi', 'wma' => 'audio/wma', + 'mka' => 'audio/x-matroska', + 'mkv' => 'video/x-matroska', 'rtf' => 'application/rtf', 'js' => 'application/javascript', 'pdf' => 'application/pdf', - 'doc' => 'application/msword', - 'pot|pps|ppt' => 'application/vnd.ms-powerpoint', + 'doc|docx' => 'application/msword', + 'pot|pps|ppt|pptx|ppam|pptm|sldm|ppsm|potm' => 'application/vnd.ms-powerpoint', 'wri' => 'application/vnd.ms-write', - 'xla|xls|xlt|xlw' => 'application/vnd.ms-excel', + 'xla|xls|xlsx|xlt|xlw|xlam|xlsb|xlsm|xltm' => 'application/vnd.ms-excel', 'mdb' => 'application/vnd.ms-access', 'mpp' => 'application/vnd.ms-project', + 'docm|dotm' => 'application/vnd.ms-word', + 'pptx|sldx|ppsx|potx' => 'application/vnd.openxmlformats-officedocument.presentationml', + 'xlsx|xltx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml', + 'docx|dotx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml', + 'onetoc|onetoc2|onetmp|onepkg' => 'application/onenote', 'swf' => 'application/x-shockwave-flash', 'class' => 'application/java', 'tar' => 'application/x-tar', 'zip' => 'application/zip', 'gz|gzip' => 'application/x-gzip', + 'rar' => 'application/rar', + '7z' => 'application/x-7z-compressed', 'exe' => 'application/x-msdownload', // openoffice formats 'odt' => 'application/vnd.oasis.opendocument.text', @@ -1668,101 +1824,104 @@ function wp_check_filetype( $filename, $mimes = null ) { 'odc' => 'application/vnd.oasis.opendocument.chart', 'odb' => 'application/vnd.oasis.opendocument.database', 'odf' => 'application/vnd.oasis.opendocument.formula', - ) - ); - - $type = false; - $ext = false; - - foreach ( $mimes as $ext_preg => $mime_match ) { - $ext_preg = '!\.(' . $ext_preg . ')$!i'; - if ( preg_match( $ext_preg, $filename, $ext_matches ) ) { - $type = $mime_match; - $ext = $ext_matches[1]; - break; - } + // wordperfect formats + 'wp|wpd' => 'application/wordperfect', + ) ); } - return compact( 'ext', 'type' ); + return $mimes; } -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_catname' ); - $trans['update']['category'] = array( __( 'Your attempt to edit this category: "%s" has failed.' ), 'get_catname' ); - - $trans['delete']['comment'] = array( __( 'Your attempt to delete this comment: "%s" has failed.' ), 'use_id' ); - $trans['unapprove']['comment'] = array( __( 'Your attempt to unapprove this comment: "%s" has failed.' ), 'use_id' ); - $trans['approve']['comment'] = array( __( 'Your attempt to approve this comment: "%s" has failed.' ), 'use_id' ); - $trans['update']['comment'] = array( __( 'Your attempt to edit this comment: "%s" has failed.' ), 'use_id' ); - $trans['bulk']['comments'] = array( __( 'Your attempt to bulk modify comments has failed.' ), false ); - $trans['moderate']['comments'] = array( __( 'Your attempt to moderate comments has failed.' ), false ); - - $trans['add']['bookmark'] = array( __( 'Your attempt to add this link has failed.' ), false ); - $trans['delete']['bookmark'] = array( __( 'Your attempt to delete this link: "%s" has failed.' ), 'use_id' ); - $trans['update']['bookmark'] = array( __( 'Your attempt to edit this link: "%s" has failed.' ), 'use_id' ); - $trans['bulk']['bookmarks'] = array( __( 'Your attempt to bulk modify links has failed.' ), false ); - - $trans['add']['page'] = array( __( 'Your attempt to add this page has failed.' ), false ); - $trans['delete']['page'] = array( __( 'Your attempt to delete this page: "%s" has failed.' ), 'get_the_title' ); - $trans['update']['page'] = array( __( 'Your attempt to edit this page: "%s" has failed.' ), 'get_the_title' ); - - $trans['edit']['plugin'] = array( __( 'Your attempt to edit this plugin file: "%s" has failed.' ), 'use_id' ); - $trans['activate']['plugin'] = array( __( 'Your attempt to activate this plugin: "%s" has failed.' ), 'use_id' ); - $trans['deactivate']['plugin'] = array( __( 'Your attempt to deactivate this plugin: "%s" has failed.' ), 'use_id' ); - $trans['upgrade']['plugin'] = array( __( 'Your attempt to upgrade 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_author_name' ); - $trans['update']['profile'] = array( __( 'Your attempt to modify the profile for: "%s" has failed.' ), 'get_author_name' ); - - $trans['update']['options'] = array( __( 'Your attempt to edit your settings has failed.' ), false ); - $trans['update']['permalink'] = array( __( 'Your attempt to change your permalink structure to: %s has failed.' ), 'use_id' ); - $trans['edit']['file'] = array( __( 'Your attempt to edit this file: "%s" has failed.' ), 'use_id' ); - $trans['edit']['theme'] = array( __( 'Your attempt to edit this theme file: "%s" has failed.' ), 'use_id' ); - $trans['switch']['theme'] = array( __( 'Your attempt to switch to this theme: "%s" has failed.' ), 'use_id' ); - - if ( isset( $trans[$verb][$noun] ) ) { - if ( !empty( $trans[$verb][$noun][1] ) ) { - $lookup = $trans[$verb][$noun][1]; - $object = $matches[4]; - if ( 'use_id' != $lookup ) - $object = call_user_func( $lookup, $object ); - return sprintf( $trans[$verb][$noun][0], wp_specialchars($object) ); - } else { - return $trans[$verb][$noun][0]; - } - } +/** + * Retrieve nonce action "Are you sure" message. + * + * Deprecated in 3.4.1 and 3.5.0. Backported to 3.3.3. + * + * @since 2.0.4 + * @deprecated 3.4.1 + * @deprecated Use wp_nonce_ays() + * @see wp_nonce_ays() + * + * @param string $action Nonce action. + * @return string Are you sure message. + */ +function wp_explain_nonce( $action ) { + _deprecated_function( __FUNCTION__, '3.4.1', 'wp_nonce_ays()' ); + return __( 'Are you sure you want to do this?' ); +} + +/** + * Display "Are You Sure" message to confirm the action being taken. + * + * If the action has the nonce explain message, then it will be displayed along + * with the "Are you sure?" message. + * + * @package WordPress + * @subpackage Security + * @since 2.0.4 + * + * @param string $action The nonce action. + */ +function wp_nonce_ays( $action ) { + $title = __( 'WordPress Failure Notice' ); + if ( 'log-out' == $action ) { + $html = sprintf( __( 'You are attempting to log out of %s' ), get_bloginfo( 'name' ) ) . '</p><p>'; + $html .= sprintf( __( "Do you really want to <a href='%s'>log out</a>?"), wp_logout_url() ); + } else { + $html = __( 'Are you sure you want to do this?' ); + if ( wp_get_referer() ) + $html .= "</p><p><a href='" . esc_url( remove_query_arg( 'updated', wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>"; } - return apply_filters( 'explain_nonce_' . $verb . '-' . $noun, __( 'Are you sure you want to do this?' ), $matches[4] ); + wp_die( $html, $title, array('response' => 403) ); } +/** + * Kill WordPress execution and display HTML message with error message. + * + * This function complements the die() PHP function. The difference is that + * HTML will be displayed to the user. It is recommended to use this function + * only, when the execution should not continue any further. It is not + * recommended to call this function very often and try to handle as many errors + * as possible silently. + * + * @since 2.0.4 + * + * @param string $message Error message. + * @param string $title Error title. + * @param string|array $args Optional arguments to control behavior. + */ +function wp_die( $message = '', $title = '', $args = array() ) { + if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) + $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' ); + elseif ( defined( 'APP_REQUEST' ) && APP_REQUEST ) + $function = apply_filters( 'wp_die_app_handler', '_scalar_wp_die_handler' ); + else + $function = apply_filters( 'wp_die_handler', '_default_wp_die_handler' ); -function wp_nonce_ays( $action ) { - $title = __( 'WordPress Failure Notice' ); - $html = wp_specialchars( wp_explain_nonce( $action ) ) . '</p>'; - if ( wp_get_referer() ) - $html .= "<p><a href='" . remove_query_arg( 'updated', clean_url( wp_get_referer() ) ) . "'>" . __( 'Please try again.' ) . "</a>"; - wp_die( $html, $title); + call_user_func( $function, $message, $title, $args ); } +/** + * Kill WordPress execution and display HTML message with error message. + * + * This is the default handler for wp_die if you want a custom one for your + * site then you can overload using the wp_die_handler filter in wp_die + * + * @since 3.0.0 + * @access private + * + * @param string $message Error message. + * @param string $title Error title. + * @param string|array $args Optional arguments to control behavior. + */ +function _default_wp_die_handler( $message, $title = '', $args = array() ) { + $defaults = array( 'response' => 500 ); + $r = wp_parse_args($args, $defaults); -function wp_die( $message, $title = '' ) { - global $wp_locale; + $have_gettext = function_exists('__'); if ( function_exists( 'is_wp_error' ) && is_wp_error( $message ) ) { if ( empty( $title ) ) { @@ -1786,43 +1945,125 @@ function wp_die( $message, $title = '' ) { $message = "<p>$message</p>"; } - 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 = ''; - else - $admin_dir = 'wp-admin/'; - - if ( !function_exists( 'did_action' ) || !did_action( 'admin_head' ) ) : - if( !headers_sent() ){ - status_header( 500 ); - nocache_headers(); - header( 'Content-Type: text/html; charset=utf-8' ); + if ( isset( $r['back_link'] ) && $r['back_link'] ) { + $back_text = $have_gettext? __('« Back') : '« Back'; + $message .= "\n<p><a href='javascript:history.back()'>$back_text</a></p>"; } - if ( empty($title) ) { - if ( function_exists( '__' ) ) - $title = __( 'WordPress › Error' ); - else - $title = 'WordPress › Error'; - } + if ( ! did_action( 'admin_head' ) ) : + if ( !headers_sent() ) { + status_header( $r['response'] ); + nocache_headers(); + header( 'Content-Type: text/html; charset=utf-8' ); + } + + if ( empty($title) ) + $title = $have_gettext ? __('WordPress › Error') : 'WordPress › Error'; + $text_direction = 'ltr'; + if ( isset($r['text_direction']) && 'rtl' == $r['text_direction'] ) + $text_direction = 'rtl'; + elseif ( function_exists( 'is_rtl' ) && is_rtl() ) + $text_direction = 'rtl'; ?> -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> -<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) ) language_attributes(); ?>> +<!DOCTYPE html> +<!-- Ticket #11289, IE bug fix: always pad the error page with enough characters such that it is greater than 512 bytes, even after gzip compression abcdefghijklmnopqrstuvwxyz1234567890aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz11223344556677889900abacbcbdcdcededfefegfgfhghgihihjijikjkjlklkmlmlnmnmononpopoqpqprqrqsrsrtstsubcbcdcdedefefgfabcadefbghicjkldmnoepqrfstugvwxhyz1i234j567k890laabmbccnddeoeffpgghqhiirjjksklltmmnunoovppqwqrrxsstytuuzvvw0wxx1yyz2z113223434455666777889890091abc2def3ghi4jkl5mno6pqr7stu8vwx9yz11aab2bcc3dd4ee5ff6gg7hh8ii9j0jk1kl2lmm3nnoo4p5pq6qrr7ss8tt9uuvv0wwx1x2yyzz13aba4cbcb5dcdc6dedfef8egf9gfh0ghg1ihi2hji3jik4jkj5lkl6kml7mln8mnm9ono +--> +<html xmlns="http://www.w3.org/1999/xhtml" <?php if ( function_exists( 'language_attributes' ) && function_exists( 'is_rtl' ) ) language_attributes(); else echo "dir='$text_direction'"; ?>> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title><?php echo $title ?> - -text_direction ) ) : ?> - - + - + @@ -1830,25 +2071,122 @@ if ( ( $wp_locale ) && ( 'rtl' == $wp_locale->text_direction ) ) : ?> die(); } +/** + * Kill WordPress execution and display XML message with error message. + * + * This is the handler for wp_die when processing XMLRPC requests. + * + * @since 3.2.0 + * @access private + * + * @param string $message Error message. + * @param string $title Error title. + * @param string|array $args Optional arguments to control behavior. + */ +function _xmlrpc_wp_die_handler( $message, $title = '', $args = array() ) { + global $wp_xmlrpc_server; + $defaults = array( 'response' => 500 ); + + $r = wp_parse_args($args, $defaults); + + if ( $wp_xmlrpc_server ) { + $error = new IXR_Error( $r['response'] , $message); + $wp_xmlrpc_server->output( $error->getXml() ); + } + die(); +} + +/** + * Kill WordPress ajax execution. + * + * This is the handler for wp_die when processing Ajax requests. + * + * @since 3.4.0 + * @access private + * + * @param string $message Optional. Response to print. + */ +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(); +} +/** + * Retrieve the WordPress home page URL. + * + * If the constant named 'WP_HOME' exists, then it will be used and returned by + * the function. This can be used to counter the redirection on your local + * development environment. + * + * @access private + * @package WordPress + * @since 2.2.0 + * + * @param string $url URL for the home location + * @return string Homepage location. + */ function _config_wp_home( $url = '' ) { if ( defined( 'WP_HOME' ) ) - return WP_HOME; + return untrailingslashit( WP_HOME ); return $url; } - +/** + * Retrieve the WordPress site URL. + * + * If the constant named 'WP_SITEURL' is defined, then the value in that + * constant will always be returned. This can be used for debugging a site on + * your localhost while not having to change the database to your URL. + * + * @access private + * @package WordPress + * @since 2.2.0 + * + * @param string $url URL to set the WordPress site location. + * @return string The WordPress Site URL + */ function _config_wp_siteurl( $url = '' ) { if ( defined( 'WP_SITEURL' ) ) - return WP_SITEURL; + return untrailingslashit( WP_SITEURL ); return $url; } - +/** + * Set the localized direction for MCE plugin. + * + * Will only set the direction to 'rtl', if the WordPress locale has the text + * direction set to 'rtl'. + * + * Fills in the 'directionality', 'plugins', and 'theme_advanced_button1' array + * keys. These keys are then returned in the $input array. + * + * @access private + * @package WordPress + * @subpackage MCE + * @since 2.1.0 + * + * @param array $input MCE plugin array. + * @return array Direction set for 'rtl', if needed by locale. + */ function _mce_set_direction( $input ) { - global $wp_locale; - - if ( 'rtl' == $wp_locale->text_direction ) { + if ( is_rtl() ) { $input['directionality'] = 'rtl'; $input['plugins'] .= ',directionality'; $input['theme_advanced_buttons1'] .= ',ltr'; @@ -1857,9 +2195,29 @@ function _mce_set_direction( $input ) { return $input; } - +/** + * Convert smiley code to the icon graphic file equivalent. + * + * You can turn off smilies, by going to the write setting screen and unchecking + * the box, or by setting 'use_smilies' option to false or removing the option. + * + * Plugins may override the default smiley list by setting the $wpsmiliestrans + * to an array, with the key the code the blogger types in and the value the + * image file. + * + * The $wp_smiliessearch global is for the regular expression and is set each + * time the function is called. + * + * The full list of smilies can be found in the function and won't be listed in + * the description. Probably should create a Codex page for it, so that it is + * available. + * + * @global array $wpsmiliestrans + * @global array $wp_smiliessearch + * @since 2.2.0 + */ function smilies_init() { - global $wpsmiliestrans, $wp_smiliessearch, $wp_smiliesreplace; + global $wpsmiliestrans, $wp_smiliessearch; // don't bother setting up smilies if they are disabled if ( !get_option( 'use_smilies' ) ) @@ -1898,7 +2256,8 @@ 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', @@ -1914,12 +2273,38 @@ function smilies_init() { ); } - $siteurl = get_option( 'siteurl' ); + if (count($wpsmiliestrans) == 0) { + return; + } + + /* + * NOTE: we sort the smilies in reverse key order. This is to make sure + * we match the longest possible smilie (:???: vs :?) as the regular + * expression used below is first-match + */ + krsort($wpsmiliestrans); + + $wp_smiliessearch = '/(?:\s|^)'; + + $subchar = ''; foreach ( (array) $wpsmiliestrans as $smiley => $img ) { - $wp_smiliessearch[] = '/(\s|^)' . preg_quote( $smiley, '/' ) . '(\s|$)/'; - $smiley_masked = attribute_escape( trim( $smiley ) ); - $wp_smiliesreplace[] = " $smiley_masked "; + $firstchar = substr($smiley, 0, 1); + $rest = substr($smiley, 1); + + // new subpattern? + if ($firstchar != $subchar) { + if ($subchar != '') { + $wp_smiliessearch .= ')|(?:\s|^)'; + } + $subchar = $firstchar; + $wp_smiliessearch .= preg_quote($firstchar, '/') . '(?:'; + } else { + $wp_smiliessearch .= '|'; + } + $wp_smiliessearch .= preg_quote($rest, '/'); } + + $wp_smiliessearch .= ')(?:\s|$)/m'; } /** @@ -1947,6 +2332,127 @@ function wp_parse_args( $args, $defaults = '' ) { return $r; } +/** + * Clean up an array, comma- or space-separated list of IDs. + * + * @since 3.0.0 + * + * @param array|string $list + * @return array Sanitized array of IDs + */ +function wp_parse_id_list( $list ) { + if ( !is_array($list) ) + $list = preg_split('/[\s,]+/', $list); + + return array_unique(array_map('absint', $list)); +} + +/** + * Extract a slice of an array, given a list of keys. + * + * @since 3.1.0 + * + * @param array $array The original array + * @param array $keys The list of keys + * @return array The array slice + */ +function wp_array_slice_assoc( $array, $keys ) { + $slice = array(); + foreach ( $keys as $key ) + if ( isset( $array[ $key ] ) ) + $slice[ $key ] = $array[ $key ]; + + return $slice; +} + +/** + * Filters a list of objects, based on a set of key => value arguments. + * + * @since 3.0.0 + * + * @param array $list An array of objects to filter + * @param array $args An array of key => value arguments to match against each object + * @param string $operator The logical operation to perform. 'or' means only one element + * from the array needs to match; 'and' means all elements must match. The default is 'and'. + * @param bool|string $field A field from the object to place instead of the entire object + * @return array A list of objects or object fields + */ +function wp_filter_object_list( $list, $args = array(), $operator = 'and', $field = false ) { + if ( ! is_array( $list ) ) + return array(); + + $list = wp_list_filter( $list, $args, $operator ); + + if ( $field ) + $list = wp_list_pluck( $list, $field ); + + return $list; +} + +/** + * Filters a list of objects, based on a set of key => value arguments. + * + * @since 3.1.0 + * + * @param array $list An array of objects to filter + * @param array $args An array of key => value arguments to match against each object + * @param string $operator The logical operation to perform: + * 'AND' means all elements from the array must match; + * 'OR' means only one element needs to match; + * 'NOT' means no elements may match. + * The default is 'AND'. + * @return array + */ +function wp_list_filter( $list, $args = array(), $operator = 'AND' ) { + if ( ! is_array( $list ) ) + return array(); + + if ( empty( $args ) ) + return $list; + + $operator = strtoupper( $operator ); + $count = count( $args ); + $filtered = array(); + + foreach ( $list as $key => $obj ) { + $to_match = (array) $obj; + + $matched = 0; + foreach ( $args as $m_key => $m_value ) { + if ( $m_value == $to_match[ $m_key ] ) + $matched++; + } + + if ( ( 'AND' == $operator && $matched == $count ) + || ( 'OR' == $operator && $matched > 0 ) + || ( 'NOT' == $operator && 0 == $matched ) ) { + $filtered[$key] = $obj; + } + } + + return $filtered; +} + +/** + * Pluck a certain field out of each object in a list. + * + * @since 3.1.0 + * + * @param array $list A list of objects or arrays + * @param int|string $field A field from the object to place instead of the entire object + * @return array + */ +function wp_list_pluck( $list, $field ) { + foreach ( $list as $key => $value ) { + if ( is_object( $value ) ) + $list[ $key ] = $value->$field; + else + $list[ $key ] = $value[ $field ]; + } + + return $list; +} + /** * Determines if Widgets library should be loaded. * @@ -1957,10 +2463,10 @@ function wp_parse_args( $args, $defaults = '' ) { * @uses add_action() Calls '_admin_menu' hook with 'wp_widgets_add_menu' value. */ function wp_maybe_load_widgets() { - if ( !function_exists( 'dynamic_sidebar' ) ) { - require_once( ABSPATH . WPINC . '/widgets.php' ); - add_action( '_admin_menu', 'wp_widgets_add_menu' ); - } + if ( ! apply_filters('load_default_widgets', true) ) + return; + require_once( ABSPATH . WPINC . '/default-widgets.php' ); + add_action( '_admin_menu', 'wp_widgets_add_menu' ); } /** @@ -1971,7 +2477,7 @@ function wp_maybe_load_widgets() { */ function wp_widgets_add_menu() { global $submenu; - $submenu['themes.php'][7] = array( __( 'Widgets' ), 'switch_themes', 'widgets.php' ); + $submenu['themes.php'][7] = array( __( 'Widgets' ), 'edit_theme_options', 'widgets.php' ); ksort( $submenu['themes.php'], SORT_NUMERIC ); } @@ -1983,25 +2489,9 @@ function wp_widgets_add_menu() { * @since 2.2.0 */ function wp_ob_end_flush_all() { - while ( @ob_end_flush() ); -} - -/** - * Load the correct database class file. - * - * This function is used to load the database class file either at runtime or by - * wp-admin/setup-config.php We must globalise $wpdb to ensure that it is - * defined globally by the inline code in wp-db.php. - * - * @since 2.5 - * @global $wpdb WordPress Database Object - */ -function require_wp_db() { - global $wpdb; - if ( file_exists( WP_CONTENT_DIR . '/db.php' ) ) - require_once( WP_CONTENT_DIR . '/db.php' ); - else - require_once( ABSPATH . WPINC . '/wp-db.php' ); + $levels = ob_get_level(); + for ($i=0; $i<$levels; $i++) + ob_end_flush(); } /** @@ -2015,7 +2505,10 @@ function require_wp_db() { * search engines from caching the message. Custom DB messages should do the * same. * - * @since 2.5 + * This function was backported to the the WordPress 2.3.2, but originally was + * added in WordPress 2.5.0. + * + * @since 2.3.2 * @uses $wpdb */ function dead_db() { @@ -2035,16 +2528,18 @@ 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, $version ) ); @@ -2156,40 +2638,121 @@ function _deprecated_function($function, $version, $replacement=null) { * to get the backtrace up to what file and function included the deprecated * file. * - * The current behavior is to trigger an user error if WP_DEBUG is defined and - * is true. + * The current behavior is to trigger a user error if WP_DEBUG is true. * - * This function is to be used in every file that is depreceated + * This function is to be used in every file that is deprecated. * * @package WordPress - * @package Debug - * @since 2.5 + * @subpackage Debug + * @since 2.5.0 * @access private * - * @uses do_action() Calls 'deprecated_file_included' and passes the file name and what to use instead. - * @uses apply_filters() Calls 'deprecated_file_trigger_error' and expects boolean value of true to do trigger or false to not trigger error. + * @uses do_action() Calls 'deprecated_file_included' and passes the file name, what to use instead, + * the version in which the file was deprecated, and any message regarding the change. + * @uses apply_filters() Calls 'deprecated_file_trigger_error' and expects boolean value of true to do + * trigger or false to not trigger error. * * @param string $file The file that was included - * @param string $version The version of WordPress that depreceated the function - * @param string $replacement Optional. The function that should have been called + * @param string $version The version of WordPress that deprecated the file + * @param string $replacement Optional. The file that should have been included based on ABSPATH + * @param string $message Optional. A message regarding the change + */ +function _deprecated_file( $file, $version, $replacement = null, $message = '' ) { + + do_action( 'deprecated_file_included', $file, $replacement, $version, $message ); + + // Allow plugin to filter the output error trigger + if ( WP_DEBUG && apply_filters( 'deprecated_file_trigger_error', true ) ) { + $message = empty( $message ) ? '' : ' ' . $message; + if ( ! is_null( $replacement ) ) + trigger_error( sprintf( __('%1$s is 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 ) . $message ); + } +} +/** + * Marks a function argument as deprecated and informs when it has been used. + * + * This function is to be used whenever a deprecated function argument is used. + * Before this function is called, the argument must be checked for whether it was + * used by comparing it to its default value or evaluating whether it is empty. + * For example: + * + * if ( !empty($deprecated) ) + * _deprecated_argument( __FUNCTION__, '3.0' ); + * + * + * There is a hook deprecated_argument_run that will be called that can be used + * to get the backtrace up to what file and function used the deprecated + * argument. + * + * The current behavior is to trigger a user error if WP_DEBUG is true. + * + * @package WordPress + * @subpackage Debug + * @since 3.0.0 + * @access private + * + * @uses do_action() Calls 'deprecated_argument_run' and passes the function name, a message on the change, + * and the version in which the argument was deprecated. + * @uses apply_filters() Calls 'deprecated_argument_trigger_error' and expects boolean value of true to do + * trigger or false to not trigger error. + * + * @param string $function The function that was called + * @param string $version The version of WordPress that deprecated the argument used + * @param string $message Optional. A message regarding the change. */ -function _deprecated_file($file, $version, $replacement=null) { +function _deprecated_argument( $function, $version, $message = null ) { - do_action('deprecated_file_included', $file, $replacement); + do_action( 'deprecated_argument_run', $function, $message, $version ); // Allow plugin to filter the output error trigger - if( defined('WP_DEBUG') && ( true === WP_DEBUG ) && apply_filters( 'deprecated_file_trigger_error', true )) { - if( !is_null($replacement) ) - trigger_error( sprintf( __('%1$s is deprecated since version %2$s! Use %3$s instead.'), $file, $version, $replacement ) ); + if ( WP_DEBUG && apply_filters( 'deprecated_argument_trigger_error', true ) ) { + if ( ! is_null( $message ) ) + trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s! %3$s'), $function, $version, $message ) ); else - trigger_error( sprintf( __('%1$s is deprecated since version %2$s with no alternative available.'), $file, $version ) ); + trigger_error( sprintf( __('%1$s was called with an argument that is deprecated since version %2$s with no alternative available.'), $function, $version ) ); + } +} + +/** + * Marks something as being incorrectly called. + * + * There is a hook doing_it_wrong_run that will be called that can be used + * to get the backtrace up to what file and function called the deprecated + * function. + * + * The current behavior is to trigger a user error if WP_DEBUG is true. + * + * @package WordPress + * @subpackage Debug + * @since 3.1.0 + * @access private + * + * @uses do_action() Calls 'doing_it_wrong_run' and passes the function arguments. + * @uses apply_filters() Calls 'doing_it_wrong_trigger_error' and expects boolean value of true to do + * trigger or false to not trigger error. + * + * @param string $function The function that was called. + * @param string $message A message explaining what has been done incorrectly. + * @param string $version The version of WordPress where the message was added. + */ +function _doing_it_wrong( $function, $message, $version ) { + + do_action( 'doing_it_wrong_run', $function, $message, $version ); + + // Allow plugin to filter the output error trigger + if ( WP_DEBUG && apply_filters( 'doing_it_wrong_trigger_error', true ) ) { + $version = is_null( $version ) ? '' : sprintf( __( '(This message was added in version %s.)' ), $version ); + $message .= ' ' . __( 'Please see Debugging in WordPress for more information.' ); + trigger_error( sprintf( __( '%1$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 unknown + * @since 2.5.0 * * @return bool Whether the server is running lighttpd < 1.5.0 */ @@ -2200,9 +2763,9 @@ function is_lighttpd_before_150() { } /** - * Does the specified module exist in the apache config? + * Does the specified module exist in the Apache config? * - * @since unknown + * @since 2.5.0 * * @param string $mod e.g. mod_rewrite * @param bool $default The default return value if the module is not found @@ -2228,6 +2791,34 @@ function apache_mod_loaded($mod, $default = false) { return $default; } +/** + * Check if IIS 7 supports pretty permalinks. + * + * @since 2.8.0 + * + * @return bool + */ +function iis7_supports_permalinks() { + global $is_iis7; + + $supports_permalinks = false; + if ( $is_iis7 ) { + /* First we check if the DOMDocument class exists. If it does not exist, + * which is the case for PHP 4.X, then we cannot easily update the xml configuration file, + * hence we just bail out and tell user that pretty permalinks cannot be used. + * This is not a big issue because PHP 4.X is going to be deprecated and for IIS it + * is recommended to use PHP 5.X NTS. + * Next we check if the URL Rewrite Module 1.1 is loaded and enabled for the web site. When + * URL Rewrite 1.1 is loaded it always sets a server variable called 'IIS_UrlRewriteModule'. + * Lastly we make sure that PHP is running via FastCGI. This is important because if it runs + * via ISAPI then pretty permalinks will not work. + */ + $supports_permalinks = class_exists('DOMDocument') && isset($_SERVER['IIS_UrlRewriteModule']) && ( php_sapi_name() == 'cgi-fcgi' ); + } + + return apply_filters('iis7_supports_permalinks', $supports_permalinks); +} + /** * File validates against allowed set of defined rules. * @@ -2236,51 +2827,59 @@ function apache_mod_loaded($mod, $default = false) { * character. A return value of '3' means that the file is not in the allowed * files list. * - * @since 2.6 + * @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, '..' )) + if ( false !== strpos( $file, '..' ) ) return 1; - if ( false !== strpos( $file, './' )) + if ( false !== strpos( $file, './' ) ) return 1; - if (':' == substr( $file, 1, 1 )) - return 2; - - if (!empty ( $allowed_files ) && (!in_array( $file, $allowed_files ) ) ) + if ( ! empty( $allowed_files ) && ! in_array( $file, $allowed_files ) ) return 3; + if (':' == substr( $file, 1, 1 ) ) + return 2; + return 0; } /** * Determine if SSL is used. * - * @since 2.6 + * @since 2.6.0 * * @return bool True if SSL, false if not used. */ function is_ssl() { - return ( isset($_SERVER['HTTPS']) && 'on' == strtolower($_SERVER['HTTPS']) ) ? true : false; -} - + if ( isset($_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 + * @since 2.6.0 * * @param string|bool $force Optional. * @return bool True if forced, false if not forced. */ -function force_ssl_login($force = '') { - static $forced; +function force_ssl_login( $force = null ) { + static $forced = false; - if ( '' != $force ) { + if ( !is_null( $force ) ) { $old_forced = $forced; $forced = $force; return $old_forced; @@ -2290,17 +2889,17 @@ function force_ssl_login($force = '') { } /** - * Whether to force SSL used for the Administration Panels. + * Whether to force SSL used for the Administration Screens. * - * @since 2.6 + * @since 2.6.0 * * @param string|bool $force * @return bool True if forced, false if not forced. */ -function force_ssl_admin($force = '') { - static $forced; +function force_ssl_admin( $force = null ) { + static $forced = false; - if ( '' != $force ) { + if ( !is_null( $force ) ) { $old_forced = $forced; $forced = $force; return $old_forced; @@ -2315,7 +2914,7 @@ function force_ssl_admin($force = '') { * Will remove wp-admin links to retrieve only return URLs not in the wp-admin * directory. * - * @since 2.6 + * @since 2.6.0 * * @return string */ @@ -2323,10 +2922,704 @@ function wp_guess_url() { if ( defined('WP_SITEURL') && '' != WP_SITEURL ) { $url = WP_SITEURL; } else { - $schema = ( isset($_SERVER['HTTPS']) && strtolower($_SERVER['HTTPS']) == 'on' ) ? 'https://' : 'http://'; - $url = preg_replace('|/wp-admin/.*|i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); + $schema = is_ssl() ? 'https://' : 'http://'; + $url = preg_replace('#/(wp-admin/.*|wp-login.php)#i', '', $schema . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']); + } + return rtrim($url, '/'); +} + +/** + * Temporarily suspend cache additions. + * + * Stops more data being added to the cache, but still allows cache retrieval. + * This is useful for actions, such as imports, when a lot of data would otherwise + * be almost uselessly added to the cache. + * + * Suspension lasts for a single page load at most. Remember to call this + * function again if you wish to re-enable cache adds earlier. + * + * @since 3.3.0 + * + * @param bool $suspend Optional. Suspends additions if true, re-enables them if false. + * @return bool The current suspend setting + */ +function wp_suspend_cache_addition( $suspend = null ) { + static $_suspend = false; + + if ( is_bool( $suspend ) ) + $_suspend = $suspend; + + return $_suspend; +} + +/** + * Suspend cache invalidation. + * + * Turns cache invalidation on and off. Useful during imports where you don't wont to do invalidations + * every time a post is inserted. Callers must be sure that what they are doing won't lead to an inconsistent + * cache when invalidation is suspended. + * + * @since 2.7.0 + * + * @param bool $suspend Whether to suspend or enable cache invalidation + * @return bool The current suspend setting + */ +function wp_suspend_cache_invalidation($suspend = true) { + global $_wp_suspend_cache_invalidation; + + $current_suspend = $_wp_suspend_cache_invalidation; + $_wp_suspend_cache_invalidation = $suspend; + return $current_suspend; +} + +/** + * Is main site? + * + * + * @since 3.0.0 + * @package WordPress + * + * @param int $blog_id optional blog id to test (default current blog) + * @return bool True if not multisite or $blog_id is main site + */ +function is_main_site( $blog_id = '' ) { + global $current_site, $current_blog; + + if ( !is_multisite() ) + return true; + + if ( !$blog_id ) + $blog_id = $current_blog->blog_id; + + return $blog_id == $current_site->blog_id; +} + +/** + * Whether global terms are enabled. + * + * + * @since 3.0.0 + * @package WordPress + * + * @return bool True if multisite and global terms enabled + */ +function global_terms_enabled() { + if ( ! is_multisite() ) + return false; + + static $global_terms = null; + if ( is_null( $global_terms ) ) { + $filter = apply_filters( 'global_terms_enabled', null ); + if ( ! is_null( $filter ) ) + $global_terms = (bool) $filter; + else + $global_terms = (bool) get_site_option( 'global_terms_enabled', false ); + } + return $global_terms; +} + +/** + * gmt_offset modification for smart timezone handling. + * + * Overrides the gmt_offset option if we have a timezone_string available. + * + * @since 2.8.0 + * + * @return float|bool + */ +function wp_timezone_override_offset() { + if ( !$timezone_string = get_option( 'timezone_string' ) ) { + return false; + } + + $timezone_object = timezone_open( $timezone_string ); + $datetime_object = date_create(); + if ( false === $timezone_object || false === $datetime_object ) { + return false; + } + return round( timezone_offset_get( $timezone_object, $datetime_object ) / 3600, 2 ); +} + +/** + * {@internal Missing Short Description}} + * + * @since 2.9.0 + * + * @param unknown_type $a + * @param unknown_type $b + * @return int + */ +function _wp_timezone_choice_usort_callback( $a, $b ) { + // Don't use translated versions of Etc + if ( 'Etc' === $a['continent'] && 'Etc' === $b['continent'] ) { + // Make the order of these more like the old dropdown + if ( 'GMT+' === substr( $a['city'], 0, 4 ) && 'GMT+' === substr( $b['city'], 0, 4 ) ) { + return -1 * ( strnatcasecmp( $a['city'], $b['city'] ) ); + } + if ( 'UTC' === $a['city'] ) { + if ( 'GMT+' === substr( $b['city'], 0, 4 ) ) { + return 1; + } + return -1; + } + if ( 'UTC' === $b['city'] ) { + if ( 'GMT+' === substr( $a['city'], 0, 4 ) ) { + return -1; + } + return 1; + } + return strnatcasecmp( $a['city'], $b['city'] ); + } + if ( $a['t_continent'] == $b['t_continent'] ) { + if ( $a['t_city'] == $b['t_city'] ) { + return strnatcasecmp( $a['t_subcity'], $b['t_subcity'] ); + } + return strnatcasecmp( $a['t_city'], $b['t_city'] ); + } else { + // Force Etc to the bottom of the list + if ( 'Etc' === $a['continent'] ) { + return 1; + } + if ( 'Etc' === $b['continent'] ) { + return -1; + } + return strnatcasecmp( $a['t_continent'], $b['t_continent'] ); + } +} + +/** + * Gives a nicely formatted list of timezone strings. // temporary! Not in final + * + * @since 2.9.0 + * + * @param string $selected_zone Selected Zone + * @return string + */ +function wp_timezone_choice( $selected_zone ) { + static $mo_loaded = false; + + $continents = array( 'Africa', 'America', 'Antarctica', 'Arctic', 'Asia', 'Atlantic', 'Australia', 'Europe', 'Indian', 'Pacific'); + + // Load translations for continents and cities + if ( !$mo_loaded ) { + $locale = get_locale(); + $mofile = WP_LANG_DIR . '/continents-cities-' . $locale . '.mo'; + load_textdomain( 'continents-cities', $mofile ); + $mo_loaded = true; + } + + $zonen = array(); + foreach ( timezone_identifiers_list() as $zone ) { + $zone = explode( '/', $zone ); + if ( !in_array( $zone[0], $continents ) ) { + continue; + } + + // This determines what gets set and translated - we don't translate Etc/* strings here, they are done later + $exists = array( + 0 => ( isset( $zone[0] ) && $zone[0] ), + 1 => ( isset( $zone[1] ) && $zone[1] ), + 2 => ( isset( $zone[2] ) && $zone[2] ), + ); + $exists[3] = ( $exists[0] && 'Etc' !== $zone[0] ); + $exists[4] = ( $exists[1] && $exists[3] ); + $exists[5] = ( $exists[2] && $exists[3] ); + + $zonen[] = array( + 'continent' => ( $exists[0] ? $zone[0] : '' ), + 'city' => ( $exists[1] ? $zone[1] : '' ), + 'subcity' => ( $exists[2] ? $zone[2] : '' ), + 't_continent' => ( $exists[3] ? translate( str_replace( '_', ' ', $zone[0] ), 'continents-cities' ) : '' ), + 't_city' => ( $exists[4] ? translate( str_replace( '_', ' ', $zone[1] ), 'continents-cities' ) : '' ), + 't_subcity' => ( $exists[5] ? translate( str_replace( '_', ' ', $zone[2] ), 'continents-cities' ) : '' ) + ); + } + usort( $zonen, '_wp_timezone_choice_usort_callback' ); + + $structure = array(); + + if ( empty( $selected_zone ) ) { + $structure[] = ''; + } + + foreach ( $zonen as $key => $zone ) { + // Build value in an array to join later + $value = array( $zone['continent'] ); + + if ( empty( $zone['city'] ) ) { + // It's at the continent level (generally won't happen) + $display = $zone['t_continent']; + } else { + // It's inside a continent group + + // Continent optgroup + if ( !isset( $zonen[$key - 1] ) || $zonen[$key - 1]['continent'] !== $zone['continent'] ) { + $label = $zone['t_continent']; + $structure[] = ''; + } + + // Add the city to the value + $value[] = $zone['city']; + + $display = $zone['t_city']; + if ( !empty( $zone['subcity'] ) ) { + // Add the subcity to the value + $value[] = $zone['subcity']; + $display .= ' - ' . $zone['t_subcity']; + } + } + + // Build the value + $value = join( '/', $value ); + $selected = ''; + if ( $value === $selected_zone ) { + $selected = 'selected="selected" '; + } + $structure[] = '"; + + // Close continent optgroup + if ( !empty( $zone['city'] ) && ( !isset($zonen[$key + 1]) || (isset( $zonen[$key + 1] ) && $zonen[$key + 1]['continent'] !== $zone['continent']) ) ) { + $structure[] = ''; + } + } + + // Do UTC + $structure[] = ''; + $selected = ''; + if ( 'UTC' === $selected_zone ) + $selected = 'selected="selected" '; + $structure[] = ''; + $structure[] = ''; + + // Do manual UTC offsets + $structure[] = ''; + $offset_range = array (-12, -11.5, -11, -10.5, -10, -9.5, -9, -8.5, -8, -7.5, -7, -6.5, -6, -5.5, -5, -4.5, -4, -3.5, -3, -2.5, -2, -1.5, -1, -0.5, + 0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 5.75, 6, 6.5, 7, 7.5, 8, 8.5, 8.75, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.75, 13, 13.75, 14); + foreach ( $offset_range as $offset ) { + if ( 0 <= $offset ) + $offset_name = '+' . $offset; + else + $offset_name = (string) $offset; + + $offset_value = $offset_name; + $offset_name = str_replace(array('.25','.5','.75'), array(':15',':30',':45'), $offset_name); + $offset_name = 'UTC' . $offset_name; + $offset_value = 'UTC' . $offset_value; + $selected = ''; + if ( $offset_value === $selected_zone ) + $selected = 'selected="selected" '; + $structure[] = '"; + + } + $structure[] = ''; + + return join( "\n", $structure ); +} + +/** + * Strip close comment and close php tags from file headers used by WP. + * See http://core.trac.wordpress.org/ticket/8497 + * + * @since 2.8.0 + * + * @param string $str + * @return string + */ +function _cleanup_header_comment($str) { + return trim(preg_replace("/\s*(?:\*\/|\?>).*/", '', $str)); +} + +/** + * Permanently deletes posts, pages, attachments, and comments which have been in the trash for EMPTY_TRASH_DAYS. + * + * @since 2.9.0 + */ +function wp_scheduled_delete() { + global $wpdb; + + $delete_timestamp = time() - (60*60*24*EMPTY_TRASH_DAYS); + + $posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A); + + foreach ( (array) $posts_to_delete as $post ) { + $post_id = (int) $post['post_id']; + if ( !$post_id ) + continue; + + $del_post = get_post($post_id); + + if ( !$del_post || 'trash' != $del_post->post_status ) { + delete_post_meta($post_id, '_wp_trash_meta_status'); + delete_post_meta($post_id, '_wp_trash_meta_time'); + } else { + wp_delete_post($post_id); + } + } + + $comments_to_delete = $wpdb->get_results($wpdb->prepare("SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A); + + foreach ( (array) $comments_to_delete as $comment ) { + $comment_id = (int) $comment['comment_id']; + if ( !$comment_id ) + continue; + + $del_comment = get_comment($comment_id); + + if ( !$del_comment || 'trash' != $del_comment->comment_approved ) { + delete_comment_meta($comment_id, '_wp_trash_meta_time'); + delete_comment_meta($comment_id, '_wp_trash_meta_status'); + } else { + wp_delete_comment($comment_id); + } + } +} + +/** + * Retrieve metadata from a file. + * + * Searches for metadata in the first 8kiB of a file, such as a plugin or theme. + * Each piece of metadata must be on its own line. Fields can not span multiple + * lines, the value will get cut at the end of the first line. + * + * If the file data is not within that first 8kiB, then the author should correct + * their plugin file and move the data headers to the top. + * + * @see http://codex.wordpress.org/File_Header + * + * @since 2.9.0 + * @param string $file Path to the file + * @param array $default_headers List of headers, in the format array('HeaderKey' => 'Header Name') + * @param string $context If specified adds filter hook "extra_{$context}_headers" + */ +function get_file_data( $file, $default_headers, $context = '' ) { + // We don't need to write to the file, so just open for reading. + $fp = fopen( $file, 'r' ); + + // Pull only the first 8kiB of the file in. + $file_data = fread( $fp, 8192 ); + + // PHP will close file handle, but we are good citizens. + fclose( $fp ); + + // Make sure we catch CR-only line endings. + $file_data = str_replace( "\r", "\n", $file_data ); + + if ( $context && $extra_headers = apply_filters( "extra_{$context}_headers", array() ) ) { + $extra_headers = array_combine( $extra_headers, $extra_headers ); // keys equal values + $all_headers = array_merge( $extra_headers, (array) $default_headers ); + } else { + $all_headers = $default_headers; + } + + foreach ( $all_headers as $field => $regex ) { + if ( preg_match( '/^[ \t\/*#@]*' . preg_quote( $regex, '/' ) . ':(.*)$/mi', $file_data, $match ) && $match[1] ) + $all_headers[ $field ] = _cleanup_header_comment( $match[1] ); + else + $all_headers[ $field ] = ''; + } + + return $all_headers; +} + +/** + * Used internally to tidy up the search terms. + * + * @access private + * @since 2.9.0 + * + * @param string $t + * @return string + */ +function _search_terms_tidy($t) { + return trim($t, "\"'\n\r "); +} + +/** + * Returns true. + * + * Useful for returning true to filters easily. + * + * @since 3.0.0 + * @see __return_false() + * @return bool true + */ +function __return_true() { + return true; +} + +/** + * Returns false. + * + * Useful for returning false to filters easily. + * + * @since 3.0.0 + * @see __return_true() + * @return bool false + */ +function __return_false() { + return false; +} + +/** + * Returns 0. + * + * Useful for returning 0 to filters easily. + * + * @since 3.0.0 + * @see __return_zero() + * @return int 0 + */ +function __return_zero() { + return 0; +} + +/** + * Returns an empty array. + * + * Useful for returning an empty array to filters easily. + * + * @since 3.0.0 + * @see __return_zero() + * @return array Empty array + */ +function __return_empty_array() { + return array(); +} + +/** + * 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. + * + * @link http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx + * @link http://src.chromium.org/viewvc/chrome?view=rev&revision=6985 + * + * @since 3.0.0 + * @return none + */ +function send_nosniff_header() { + @header( 'X-Content-Type-Options: nosniff' ); +} + +/** + * Returns a MySQL expression for selecting the week number based on the start_of_week option. + * + * @internal + * @since 3.0.0 + * @param string $column + * @return string + */ +function _wp_mysql_week( $column ) { + switch ( $start_of_week = (int) get_option( 'start_of_week' ) ) { + default : + case 0 : + return "WEEK( $column, 0 )"; + case 1 : + return "WEEK( $column, 1 )"; + case 2 : + case 3 : + case 4 : + case 5 : + case 6 : + return "WEEK( DATE_SUB( $column, INTERVAL $start_of_week DAY ), 0 )"; + } +} + +/** + * Finds hierarchy loops using a callback function that maps object IDs to parent IDs. + * + * @since 3.1.0 + * @access private + * + * @param callback $callback function that accepts ( ID, $callback_args ) and outputs parent_ID + * @param int $start The ID to start the loop check at + * @param int $start_parent the parent_ID of $start to use instead of calling $callback( $start ). Use null to always use $callback + * @param array $callback_args optional additional arguments to send to $callback + * @return array IDs of all members of loop + */ +function wp_find_hierarchy_loop( $callback, $start, $start_parent, $callback_args = array() ) { + $override = is_null( $start_parent ) ? array() : array( $start => $start_parent ); + + if ( !$arbitrary_loop_member = wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override, $callback_args ) ) + return array(); + + return wp_find_hierarchy_loop_tortoise_hare( $callback, $arbitrary_loop_member, $override, $callback_args, true ); +} + +/** + * Uses the "The Tortoise and the Hare" algorithm to detect loops. + * + * For every step of the algorithm, the hare takes two steps and the tortoise one. + * If the hare ever laps the tortoise, there must be a loop. + * + * @since 3.1.0 + * @access private + * + * @param callback $callback function that 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 + * @param bool $_return_loop Return loop members or just detect presence of loop? + * Only set to true if you already know the given $start is part of a loop + * (otherwise the returned array might include branches) + * @return mixed scalar ID of some arbitrary member of the loop, or array of IDs of all members of loop if $_return_loop + */ +function wp_find_hierarchy_loop_tortoise_hare( $callback, $start, $override = array(), $callback_args = array(), $_return_loop = false ) { + $tortoise = $hare = $evanescent_hare = $start; + $return = array(); + + // Set evanescent_hare to one past hare + // Increment hare two steps + while ( + $tortoise + && + ( $evanescent_hare = isset( $override[$hare] ) ? $override[$hare] : call_user_func_array( $callback, array_merge( array( $hare ), $callback_args ) ) ) + && + ( $hare = isset( $override[$evanescent_hare] ) ? $override[$evanescent_hare] : call_user_func_array( $callback, array_merge( array( $evanescent_hare ), $callback_args ) ) ) + ) { + if ( $_return_loop ) + $return[$tortoise] = $return[$evanescent_hare] = $return[$hare] = true; + + // tortoise got lapped - must be a loop + if ( $tortoise == $evanescent_hare || $tortoise == $hare ) + return $_return_loop ? $return : $tortoise; + + // Increment tortoise by one step + $tortoise = isset( $override[$tortoise] ) ? $override[$tortoise] : call_user_func_array( $callback, array_merge( array( $tortoise ), $callback_args ) ); + } + + return false; +} + +/** + * 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' ); + $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', '>=' ); + } else { + return true; } - return $url; } -?> \ No newline at end of file