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-rw-r--r--srcs/wordpress/wp-includes/functions.php7403
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-<?php
-/**
- * Main WordPress API
- *
- * @package WordPress
- */
-
-require( ABSPATH . WPINC . '/option.php' );
-
-/**
- * Convert given MySQL date string into a different format.
- *
- * `$format` should be a PHP date format string.
- * 'U' and 'G' formats will return a sum of timestamp with timezone offset.
- * `$date` is expected to be local time in MySQL format (`Y-m-d H:i:s`).
- *
- * Historically UTC time could be passed to the function to produce Unix timestamp.
- *
- * If `$translate` is true then the given date and format string will
- * be passed to `wp_date()` for translation.
- *
- * @since 0.71
- *
- * @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 true.
- * @return string|int|false Formatted date string or sum of Unix timestamp and timezone offset.
- * False on failure.
- */
-function mysql2date( $format, $date, $translate = true ) {
- if ( empty( $date ) ) {
- return false;
- }
-
- $datetime = date_create( $date, wp_timezone() );
-
- if ( false === $datetime ) {
- return false;
- }
-
- // Returns a sum of timestamp with timezone offset. Ideally should never be used.
- if ( 'G' === $format || 'U' === $format ) {
- return $datetime->getTimestamp() + $datetime->getOffset();
- }
-
- if ( $translate ) {
- return wp_date( $format, $datetime->getTimestamp() );
- }
-
- return $datetime->format( $format );
-}
-
-/**
- * Retrieves the current time based on specified type.
- *
- * The 'mysql' type will return the time in the format for MySQL DATETIME field.
- * The 'timestamp' type will return the current timestamp or a sum of timestamp
- * and timezone offset, depending on `$gmt`.
- * Other strings will be interpreted as PHP date formats (e.g. 'Y-m-d').
- *
- * 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 Type of time to retrieve. Accepts 'mysql', 'timestamp',
- * or PHP date format string (e.g. 'Y-m-d').
- * @param int|bool $gmt Optional. Whether to use GMT timezone. Default false.
- * @return int|string Integer if $type is 'timestamp', string otherwise.
- */
-function current_time( $type, $gmt = 0 ) {
- // Don't use non-GMT timestamp, unless you know the difference and really need to.
- if ( 'timestamp' === $type || 'U' === $type ) {
- return $gmt ? time() : time() + (int) ( get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
- }
-
- if ( 'mysql' === $type ) {
- $type = 'Y-m-d H:i:s';
- }
-
- $timezone = $gmt ? new DateTimeZone( 'UTC' ) : wp_timezone();
- $datetime = new DateTime( 'now', $timezone );
-
- return $datetime->format( $type );
-}
-
-/**
- * Retrieves the current time as an object with the timezone from settings.
- *
- * @since 5.3.0
- *
- * @return DateTimeImmutable Date and time object.
- */
-function current_datetime() {
- return new DateTimeImmutable( 'now', wp_timezone() );
-}
-
-/**
- * Retrieves the timezone from site settings as a string.
- *
- * Uses the `timezone_string` option to get a proper timezone if available,
- * otherwise falls back to an offset.
- *
- * @since 5.3.0
- *
- * @return string PHP timezone string or a ±HH:MM offset.
- */
-function wp_timezone_string() {
- $timezone_string = get_option( 'timezone_string' );
-
- if ( $timezone_string ) {
- return $timezone_string;
- }
-
- $offset = (float) get_option( 'gmt_offset' );
- $hours = (int) $offset;
- $minutes = ( $offset - $hours );
-
- $sign = ( $offset < 0 ) ? '-' : '+';
- $abs_hour = abs( $hours );
- $abs_mins = abs( $minutes * 60 );
- $tz_offset = sprintf( '%s%02d:%02d', $sign, $abs_hour, $abs_mins );
-
- return $tz_offset;
-}
-
-/**
- * Retrieves the timezone from site settings as a `DateTimeZone` object.
- *
- * Timezone can be based on a PHP timezone string or a ±HH:MM offset.
- *
- * @since 5.3.0
- *
- * @return DateTimeZone Timezone object.
- */
-function wp_timezone() {
- return new DateTimeZone( wp_timezone_string() );
-}
-
-/**
- * Retrieves the date in localized format, based on a sum of Unix timestamp and
- * timezone offset in seconds.
- *
- * If the locale specifies the locale month and weekday, then the locale will
- * take over the format for the date. If it isn't, then the date format string
- * will be used instead.
- *
- * Note that due to the way WP typically generates a sum of timestamp and offset
- * with `strtotime()`, it implies offset added at a _current_ time, not at the time
- * the timestamp represents. Storing such timestamps or calculating them differently
- * will lead to invalid output.
- *
- * @since 0.71
- * @since 5.3.0 Converted into a wrapper for wp_date().
- *
- * @global WP_Locale $wp_locale WordPress date and time locale object.
- *
- * @param string $format Format to display the date.
- * @param int|bool $timestamp_with_offset Optional. A sum of Unix timestamp and timezone offset
- * in seconds. Default false.
- * @param bool $gmt Optional. Whether to use GMT timezone. Only applies
- * if timestamp is not provided. Default false.
- * @return string The date, translated if locale specifies it.
- */
-function date_i18n( $format, $timestamp_with_offset = false, $gmt = false ) {
- $timestamp = $timestamp_with_offset;
-
- // If timestamp is omitted it should be current time (summed with offset, unless `$gmt` is true).
- if ( ! is_numeric( $timestamp ) ) {
- $timestamp = current_time( 'timestamp', $gmt );
- }
-
- /*
- * This is a legacy implementation quirk that the returned timestamp is also with offset.
- * Ideally this function should never be used to produce a timestamp.
- */
- if ( 'U' === $format ) {
- $date = $timestamp;
- } elseif ( $gmt && false === $timestamp_with_offset ) { // Current time in UTC.
- $date = wp_date( $format, null, new DateTimeZone( 'UTC' ) );
- } elseif ( false === $timestamp_with_offset ) { // Current time in site's timezone.
- $date = wp_date( $format );
- } else {
- /*
- * Timestamp with offset is typically produced by a UTC `strtotime()` call on an input without timezone.
- * This is the best attempt to reverse that operation into a local time to use.
- */
- $local_time = gmdate( 'Y-m-d H:i:s', $timestamp );
- $timezone = wp_timezone();
- $datetime = date_create( $local_time, $timezone );
- $date = wp_date( $format, $datetime->getTimestamp(), $timezone );
- }
-
- /**
- * Filters the date formatted based on the locale.
- *
- * @since 2.8.0
- *
- * @param string $date Formatted date string.
- * @param string $format Format to display the date.
- * @param int $timestamp A sum of Unix timestamp and timezone offset in seconds.
- * Might be without offset if input omitted timestamp but requested GMT.
- * @param bool $gmt Whether to use GMT timezone. Only applies if timestamp was not provided.
- * Default false.
- */
- $date = apply_filters( 'date_i18n', $date, $format, $timestamp, $gmt );
-
- return $date;
-}
-
-/**
- * Retrieves the date, in localized format.
- *
- * This is a newer function, intended to replace `date_i18n()` without legacy quirks in it.
- *
- * Note that, unlike `date_i18n()`, this function accepts a true Unix timestamp, not summed
- * with timezone offset.
- *
- * @since 5.3.0
- *
- * @param string $format PHP date format.
- * @param int $timestamp Optional. Unix timestamp. Defaults to current time.
- * @param DateTimeZone $timezone Optional. Timezone to output result in. Defaults to timezone
- * from site settings.
- * @return string|false The date, translated if locale specifies it. False on invalid timestamp input.
- */
-function wp_date( $format, $timestamp = null, $timezone = null ) {
- global $wp_locale;
-
- if ( null === $timestamp ) {
- $timestamp = time();
- } elseif ( ! is_numeric( $timestamp ) ) {
- return false;
- }
-
- if ( ! $timezone ) {
- $timezone = wp_timezone();
- }
-
- $datetime = date_create( '@' . $timestamp );
- $datetime->setTimezone( $timezone );
-
- if ( empty( $wp_locale->month ) || empty( $wp_locale->weekday ) ) {
- $date = $datetime->format( $format );
- } else {
- // We need to unpack shorthand `r` format because it has parts that might be localized.
- $format = preg_replace( '/(?<!\\\\)r/', DATE_RFC2822, $format );
-
- $new_format = '';
- $format_length = strlen( $format );
- $month = $wp_locale->get_month( $datetime->format( 'm' ) );
- $weekday = $wp_locale->get_weekday( $datetime->format( 'w' ) );
-
- for ( $i = 0; $i < $format_length; $i ++ ) {
- switch ( $format[ $i ] ) {
- case 'D':
- $new_format .= addcslashes( $wp_locale->get_weekday_abbrev( $weekday ), '\\A..Za..z' );
- break;
- case 'F':
- $new_format .= addcslashes( $month, '\\A..Za..z' );
- break;
- case 'l':
- $new_format .= addcslashes( $weekday, '\\A..Za..z' );
- break;
- case 'M':
- $new_format .= addcslashes( $wp_locale->get_month_abbrev( $month ), '\\A..Za..z' );
- break;
- case 'a':
- $new_format .= addcslashes( $wp_locale->get_meridiem( $datetime->format( 'a' ) ), '\\A..Za..z' );
- break;
- case 'A':
- $new_format .= addcslashes( $wp_locale->get_meridiem( $datetime->format( 'A' ) ), '\\A..Za..z' );
- break;
- case '\\':
- $new_format .= $format[ $i ];
-
- // If character follows a slash, we add it without translating.
- if ( $i < $format_length ) {
- $new_format .= $format[ ++$i ];
- }
- break;
- default:
- $new_format .= $format[ $i ];
- break;
- }
- }
-
- $date = $datetime->format( $new_format );
- $date = wp_maybe_decline_date( $date );
- }
-
- /**
- * Filters the date formatted based on the locale.
- *
- * @since 5.3.0
- *
- * @param string $date Formatted date string.
- * @param string $format Format to display the date.
- * @param int $timestamp Unix timestamp.
- * @param DateTimeZone $timezone Timezone.
- *
- */
- $date = apply_filters( 'wp_date', $date, $format, $timestamp, $timezone );
-
- return $date;
-}
-
-/**
- * Determines if the date should be declined.
- *
- * If the locale specifies that month names require a genitive case in certain
- * formats (like 'j F Y'), the month name will be replaced with a correct form.
- *
- * @since 4.4.0
- *
- * @global WP_Locale $wp_locale WordPress date and time locale object.
- *
- * @param string $date Formatted date string.
- * @return string The date, declined if locale specifies it.
- */
-function wp_maybe_decline_date( $date ) {
- global $wp_locale;
-
- // i18n functions are not available in SHORTINIT mode
- if ( ! function_exists( '_x' ) ) {
- return $date;
- }
-
- /*
- * translators: If months in your language require a genitive case,
- * translate this to 'on'. Do not translate into your own language.
- */
- if ( 'on' === _x( 'off', 'decline months names: on or off' ) ) {
-
- $months = $wp_locale->month;
- $months_genitive = $wp_locale->month_genitive;
-
- /*
- * Match a format like 'j F Y' or 'j. F' (day of the month, followed by month name)
- * and decline the month.
- */
- if ( preg_match( '#\b\d{1,2}\.? [^\d ]+\b#u', $date ) ) {
- foreach ( $months as $key => $month ) {
- $months[ $key ] = '# ' . preg_quote( $month, '#' ) . '\b#u';
- }
-
- foreach ( $months_genitive as $key => $month ) {
- $months_genitive[ $key ] = ' ' . $month;
- }
-
- $date = preg_replace( $months, $months_genitive, $date );
- }
-
- /*
- * Match a format like 'F jS' or 'F j' (month name, followed by day with an optional ordinal suffix)
- * and change it to declined 'j F'.
- */
- if ( preg_match( '#\b[^\d ]+ \d{1,2}(st|nd|rd|th)?\b#u', trim( $date ) ) ) {
- foreach ( $months as $key => $month ) {
- $months[ $key ] = '#\b' . preg_quote( $month, '#' ) . ' (\d{1,2})(st|nd|rd|th)?\b#u';
- }
-
- foreach ( $months_genitive as $key => $month ) {
- $months_genitive[ $key ] = '$1 ' . $month;
- }
-
- $date = preg_replace( $months, $months_genitive, $date );
- }
- }
-
- // Used for locale-specific rules
- $locale = get_locale();
-
- if ( 'ca' === $locale ) {
- // " de abril| de agost| de octubre..." -> " d'abril| d'agost| d'octubre..."
- $date = preg_replace( '# de ([ao])#i', " d'\\1", $date );
- }
-
- return $date;
-}
-
-/**
- * Convert float number to format based on the locale.
- *
- * @since 2.3.0
- *
- * @global WP_Locale $wp_locale WordPress date and time locale object.
- *
- * @param float $number The number to convert based on locale.
- * @param int $decimals Optional. Precision of the number of decimal places. Default 0.
- * @return string Converted number in string format.
- */
-function number_format_i18n( $number, $decimals = 0 ) {
- global $wp_locale;
-
- if ( isset( $wp_locale ) ) {
- $formatted = number_format( $number, absint( $decimals ), $wp_locale->number_format['decimal_point'], $wp_locale->number_format['thousands_sep'] );
- } else {
- $formatted = number_format( $number, absint( $decimals ) );
- }
-
- /**
- * Filters the number formatted based on the locale.
- *
- * @since 2.8.0
- * @since 4.9.0 The `$number` and `$decimals` parameters were added.
- *
- * @param string $formatted Converted number in string format.
- * @param float $number The number to convert based on locale.
- * @param int $decimals Precision of the number of decimal places.
- */
- return apply_filters( 'number_format_i18n', $formatted, $number, $decimals );
-}
-
-/**
- * Convert number of bytes largest unit bytes will fit into.
- *
- * It is easier to read 1 KB than 1024 bytes and 1 MB than 1048576 bytes. Converts
- * number of bytes to human readable number by taking the number of that unit
- * that the bytes will go into it. Supports TB value.
- *
- * Please note that integers in PHP are limited to 32 bits, unless they are on
- * 64 bit architecture, then they have 64 bit size. If you need to place the
- * larger size then what PHP integer type will hold, then use a string. It will
- * be converted to a double, which should always have 64 bit length.
- *
- * Technically the correct unit names for powers of 1024 are KiB, MiB etc.
- *
- * @since 2.3.0
- *
- * @param int|string $bytes Number of bytes. Note max integer size for integers.
- * @param int $decimals Optional. Precision of number of decimal places. Default 0.
- * @return string|false False on failure. Number string on success.
- */
-function size_format( $bytes, $decimals = 0 ) {
- $quant = array(
- 'TB' => TB_IN_BYTES,
- 'GB' => GB_IN_BYTES,
- 'MB' => MB_IN_BYTES,
- 'KB' => KB_IN_BYTES,
- 'B' => 1,
- );
-
- if ( 0 === $bytes ) {
- return number_format_i18n( 0, $decimals ) . ' B';
- }
-
- foreach ( $quant as $unit => $mag ) {
- if ( doubleval( $bytes ) >= $mag ) {
- return number_format_i18n( $bytes / $mag, $decimals ) . ' ' . $unit;
- }
- }
-
- return false;
-}
-
-/**
- * Convert a duration to human readable format.
- *
- * @since 5.1.0
- *
- * @param string $duration Duration will be in string format (HH:ii:ss) OR (ii:ss),
- * with a possible prepended negative sign (-).
- * @return string|false A human readable duration string, false on failure.
- */
-function human_readable_duration( $duration = '' ) {
- if ( ( empty( $duration ) || ! is_string( $duration ) ) ) {
- return false;
- }
-
- $duration = trim( $duration );
-
- // Remove prepended negative sign.
- if ( '-' === substr( $duration, 0, 1 ) ) {
- $duration = substr( $duration, 1 );
- }
-
- // Extract duration parts.
- $duration_parts = array_reverse( explode( ':', $duration ) );
- $duration_count = count( $duration_parts );
-
- $hour = null;
- $minute = null;
- $second = null;
-
- if ( 3 === $duration_count ) {
- // Validate HH:ii:ss duration format.
- if ( ! ( (bool) preg_match( '/^([0-9]+):([0-5]?[0-9]):([0-5]?[0-9])$/', $duration ) ) ) {
- return false;
- }
- // Three parts: hours, minutes & seconds.
- list( $second, $minute, $hour ) = $duration_parts;
- } elseif ( 2 === $duration_count ) {
- // Validate ii:ss duration format.
- if ( ! ( (bool) preg_match( '/^([0-5]?[0-9]):([0-5]?[0-9])$/', $duration ) ) ) {
- return false;
- }
- // Two parts: minutes & seconds.
- list( $second, $minute ) = $duration_parts;
- } else {
- return false;
- }
-
- $human_readable_duration = array();
-
- // Add the hour part to the string.
- if ( is_numeric( $hour ) ) {
- /* translators: %s: Time duration in hour or hours. */
- $human_readable_duration[] = sprintf( _n( '%s hour', '%s hours', $hour ), (int) $hour );
- }
-
- // Add the minute part to the string.
- if ( is_numeric( $minute ) ) {
- /* translators: %s: Time duration in minute or minutes. */
- $human_readable_duration[] = sprintf( _n( '%s minute', '%s minutes', $minute ), (int) $minute );
- }
-
- // Add the second part to the string.
- if ( is_numeric( $second ) ) {
- /* translators: %s: Time duration in second or seconds. */
- $human_readable_duration[] = sprintf( _n( '%s second', '%s seconds', $second ), (int) $second );
- }
-
- return implode( ', ', $human_readable_duration );
-}
-
-/**
- * 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|string $start_of_week Optional. Start of the week as an integer. Default empty string.
- * @return array Keys are 'start' and 'end'.
- */
-function get_weekstartend( $mysqlstring, $start_of_week = '' ) {
- // MySQL string year.
- $my = substr( $mysqlstring, 0, 4 );
-
- // MySQL string month.
- $mm = substr( $mysqlstring, 8, 2 );
-
- // MySQL string day.
- $md = substr( $mysqlstring, 5, 2 );
-
- // The timestamp for MySQL string day.
- $day = mktime( 0, 0, 0, $md, $mm, $my );
-
- // The day of the week from the timestamp.
- $weekday = gmdate( 'w', $day );
-
- if ( ! is_numeric( $start_of_week ) ) {
- $start_of_week = get_option( 'start_of_week' );
- }
-
- if ( $weekday < $start_of_week ) {
- $weekday += 7;
- }
-
- // The most recent week start day on or before $day.
- $start = $day - DAY_IN_SECONDS * ( $weekday - $start_of_week );
-
- // $start + 1 week - 1 second.
- $end = $start + WEEK_IN_SECONDS - 1;
- return compact( 'start', 'end' );
-}
-
-/**
- * Unserialize value only if it was serialized.
- *
- * @since 2.0.0
- *
- * @param string $original Maybe unserialized original, if is needed.
- * @return mixed Unserialized data can be any type.
- */
-function maybe_unserialize( $original ) {
- if ( is_serialized( $original ) ) { // don't attempt to unserialize data that wasn't serialized going in
- return @unserialize( $original );
- }
- return $original;
-}
-
-/**
- * Check value to find if it was serialized.
- *
- * If $data is not an string, then returned value will always be false.
- * Serialized data is always a string.
- *
- * @since 2.0.5
- *
- * @param string $data Value to check to see if was serialized.
- * @param bool $strict Optional. Whether to be strict about the end of the string. Default true.
- * @return bool False if not serialized and true if it was.
- */
-function is_serialized( $data, $strict = true ) {
- // if it isn't a string, it isn't serialized.
- if ( ! is_string( $data ) ) {
- return false;
- }
- $data = trim( $data );
- if ( 'N;' == $data ) {
- return true;
- }
- if ( strlen( $data ) < 4 ) {
- return false;
- }
- if ( ':' !== $data[1] ) {
- return false;
- }
- if ( $strict ) {
- $lastc = substr( $data, -1 );
- if ( ';' !== $lastc && '}' !== $lastc ) {
- return false;
- }
- } else {
- $semicolon = strpos( $data, ';' );
- $brace = strpos( $data, '}' );
- // Either ; or } must exist.
- if ( false === $semicolon && false === $brace ) {
- return false;
- }
- // But neither must be in the first X characters.
- if ( false !== $semicolon && $semicolon < 3 ) {
- return false;
- }
- if ( false !== $brace && $brace < 4 ) {
- return false;
- }
- }
- $token = $data[0];
- switch ( $token ) {
- case 's':
- if ( $strict ) {
- if ( '"' !== substr( $data, -2, 1 ) ) {
- return false;
- }
- } elseif ( false === strpos( $data, '"' ) ) {
- return false;
- }
- // or else fall through
- case 'a':
- case 'O':
- return (bool) preg_match( "/^{$token}:[0-9]+:/s", $data );
- case 'b':
- case 'i':
- case 'd':
- $end = $strict ? '$' : '';
- return (bool) preg_match( "/^{$token}:[0-9.E+-]+;$end/", $data );
- }
- return false;
-}
-
-/**
- * Check whether serialized data is of string type.
- *
- * @since 2.0.5
- *
- * @param string $data Serialized data.
- * @return bool False if not a serialized string, true if it is.
- */
-function is_serialized_string( $data ) {
- // if it isn't a string, it isn't a serialized string.
- if ( ! is_string( $data ) ) {
- return false;
- }
- $data = trim( $data );
- if ( strlen( $data ) < 4 ) {
- return false;
- } elseif ( ':' !== $data[1] ) {
- return false;
- } elseif ( ';' !== substr( $data, -1 ) ) {
- return false;
- } elseif ( $data[0] !== 's' ) {
- return false;
- } elseif ( '"' !== substr( $data, -2, 1 ) ) {
- return false;
- } else {
- return true;
- }
-}
-
-/**
- * Serialize data, if needed.
- *
- * @since 2.0.5
- *
- * @param string|array|object $data Data that might be serialized.
- * @return mixed A scalar data
- */
-function maybe_serialize( $data ) {
- if ( is_array( $data ) || is_object( $data ) ) {
- return serialize( $data );
- }
-
- // Double serialization is required for backward compatibility.
- // See https://core.trac.wordpress.org/ticket/12930
- // Also the world will end. See WP 3.6.1.
- if ( is_serialized( $data, false ) ) {
- return serialize( $data );
- }
-
- return $data;
-}
-
-/**
- * Retrieve post title from XMLRPC XML.
- *
- * If the title element is not part of the XML, then the default post title from
- * the $post_default_title will be used instead.
- *
- * @since 0.71
- *
- * @global string $post_default_title Default XML-RPC post title.
- *
- * @param string $content XMLRPC XML Request content
- * @return string Post title
- */
-function xmlrpc_getposttitle( $content ) {
- global $post_default_title;
- if ( preg_match( '/<title>(.+?)<\/title>/is', $content, $matchtitle ) ) {
- $post_title = $matchtitle[1];
- } else {
- $post_title = $post_default_title;
- }
- return $post_title;
-}
-
-/**
- * Retrieve the post category or categories from XMLRPC XML.
- *
- * If the category element is not found, then the default post category will be
- * used. The return type then would be what $post_default_category. If the
- * category is found, then it will always be an array.
- *
- * @since 0.71
- *
- * @global string $post_default_category Default XML-RPC 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 ) ) {
- $post_category = trim( $matchcat[1], ',' );
- $post_category = explode( ',', $post_category );
- } else {
- $post_category = $post_default_category;
- }
- return $post_category;
-}
-
-/**
- * XMLRPC XML content without title and category elements.
- *
- * @since 0.71
- *
- * @param string $content XML-RPC 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 );
- $content = trim( $content );
- return $content;
-}
-
-/**
- * Use RegEx to extract URLs from arbitrary content.
- *
- * @since 3.7.0
- *
- * @param string $content Content to extract URLs from.
- * @return array URLs found in passed string.
- */
-function wp_extract_urls( $content ) {
- preg_match_all(
- "#([\"']?)("
- . '(?:([\w-]+:)?//?)'
- . '[^\s()<>]+'
- . '[.]'
- . '(?:'
- . '\([\w\d]+\)|'
- . '(?:'
- . "[^`!()\[\]{};:'\".,<>«»“”‘’\s]|"
- . '(?:[:]\d+)?/?'
- . ')+'
- . ')'
- . ")\\1#",
- $content,
- $post_links
- );
-
- $post_links = array_unique( array_map( 'html_entity_decode', $post_links[2] ) );
-
- return array_values( $post_links );
-}
-
-/**
- * Check content for video and audio links to add as enclosures.
- *
- * Will not add enclosures that have already been added and will
- * remove enclosures that are no longer in the post. This is called as
- * pingbacks and trackbacks.
- *
- * @since 1.5.0
- * @since 5.3.0 The `$content` parameter was made optional, and the `$post` parameter was
- * updated to accept a post ID or a WP_Post object.
- *
- * @global wpdb $wpdb WordPress database abstraction object.
- *
- * @param string $content Post content. If `null`, the `post_content` field from `$post` is used.
- * @param int|WP_Post $post Post ID or post object.
- * @return null|bool Returns false if post is not found.
- */
-function do_enclose( $content = null, $post ) {
- global $wpdb;
-
- // @todo Tidy this code and make the debug code optional.
- include_once( ABSPATH . WPINC . '/class-IXR.php' );
-
- $post = get_post( $post );
- if ( ! $post ) {
- return false;
- }
-
- if ( null === $content ) {
- $content = $post->post_content;
- }
-
- $post_links = array();
-
- $pung = get_enclosed( $post->ID );
-
- $post_links_temp = wp_extract_urls( $content );
-
- foreach ( $pung as $link_test ) {
- // Link is no longer in post.
- if ( ! in_array( $link_test, $post_links_temp, true ) ) {
- $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, $wpdb->esc_like( $link_test ) . '%' ) );
- foreach ( $mids as $mid ) {
- delete_metadata_by_mid( 'post', $mid );
- }
- }
- }
-
- foreach ( (array) $post_links_temp as $link_test ) {
- // If we haven't pung it already.
- if ( ! in_array( $link_test, $pung, true ) ) {
- $test = @parse_url( $link_test );
- if ( false === $test ) {
- continue;
- }
- if ( isset( $test['query'] ) ) {
- $post_links[] = $link_test;
- } elseif ( isset( $test['path'] ) && ( '/' !== $test['path'] ) && ( '' !== $test['path'] ) ) {
- $post_links[] = $link_test;
- }
- }
- }
-
- /**
- * Filters the list of enclosure links before querying the database.
- *
- * Allows for the addition and/or removal of potential enclosures to save
- * to postmeta before checking the database for existing enclosures.
- *
- * @since 4.4.0
- *
- * @param array $post_links An array of enclosure links.
- * @param int $post_ID Post ID.
- */
- $post_links = apply_filters( 'enclosure_links', $post_links, $post->ID );
-
- 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, $wpdb->esc_like( $url ) . '%' ) ) ) {
-
- $headers = wp_get_http_headers( $url );
- if ( $headers ) {
- $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 ( wp_get_mime_types() as $exts => $mime ) {
- if ( preg_match( '!^(' . $exts . ')$!i', $extension ) ) {
- $type = $mime;
- break;
- }
- }
- }
- }
-
- if ( in_array( substr( $type, 0, strpos( $type, '/' ) ), $allowed_types, true ) ) {
- add_post_meta( $post->ID, 'enclosure', "$url\n$len\n$mime\n" );
- }
- }
- }
- }
-}
-
-/**
- * Retrieve HTTP Headers from URL.
- *
- * @since 1.5.1
- *
- * @param string $url URL to retrieve HTTP headers from.
- * @param bool $deprecated Not Used.
- * @return bool|string False on failure, headers on success.
- */
-function wp_get_http_headers( $url, $deprecated = false ) {
- if ( ! empty( $deprecated ) ) {
- _deprecated_argument( __FUNCTION__, '2.7.0' );
- }
-
- $response = wp_safe_remote_head( $url );
-
- if ( is_wp_error( $response ) ) {
- return false;
- }
-
- return wp_remote_retrieve_headers( $response );
-}
-
-/**
- * Determines whether the publish date of the current post in the loop is different
- * from the publish date of the previous post in the loop.
- *
- * For more information on this and similar theme functions, check out
- * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
- * Conditional Tags} article in the Theme Developer Handbook.
- *
- * @since 0.71
- *
- * @global string $currentday The day of the current post in the loop.
- * @global string $previousday The day of the previous post in the loop.
- *
- * @return int 1 when new day, 0 if not a new day.
- */
-function is_new_day() {
- global $currentday, $previousday;
-
- if ( $currentday !== $previousday ) {
- return 1;
- } else {
- return 0;
- }
-}
-
-/**
- * Build URL query based on an associative and, or indexed array.
- *
- * This is a convenient function for easily building url queries. It sets the
- * separator to '&' and uses _http_build_query() function.
- *
- * @since 2.3.0
- *
- * @see _http_build_query() Used to build the query
- * @link https://secure.php.net/manual/en/function.http-build-query.php for more on what
- * http_build_query() does.
- *
- * @param array $data URL-encode key/value pairs.
- * @return string URL-encoded string.
- */
-function build_query( $data ) {
- return _http_build_query( $data, null, '&', '', false );
-}
-
-/**
- * From php.net (modified by Mark Jaquith to behave like the native PHP5 function).
- *
- * @since 3.2.0
- * @access private
- *
- * @see https://secure.php.net/manual/en/function.http-build-query.php
- *
- * @param array|object $data An array or object of data. Converted to array.
- * @param string $prefix Optional. Numeric index. If set, start parameter numbering with it.
- * Default null.
- * @param string $sep Optional. Argument separator; defaults to 'arg_separator.output'.
- * Default null.
- * @param string $key Optional. Used to prefix key name. Default empty.
- * @param bool $urlencode Optional. Whether to use urlencode() in the result. Default true.
- *
- * @return string The query string.
- */
-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, $ret );
-}
-
-/**
- * Retrieves a modified URL query string.
- *
- * You can rebuild the URL and append query variables to the URL query by using this function.
- * There are two ways to use this function; either a single key and value, or an associative array.
- *
- * Using a single key and value:
- *
- * add_query_arg( 'key', 'value', 'http://example.com' );
- *
- * Using an associative array:
- *
- * add_query_arg( array(
- * 'key1' => 'value1',
- * 'key2' => 'value2',
- * ), 'http://example.com' );
- *
- * Omitting the URL from either use results in the current URL being used
- * (the value of `$_SERVER['REQUEST_URI']`).
- *
- * Values are expected to be encoded appropriately with urlencode() or rawurlencode().
- *
- * Setting any query variable's value to boolean false removes the key (see remove_query_arg()).
- *
- * Important: The return value of add_query_arg() is not escaped by default. Output should be
- * late-escaped with esc_url() or similar to help prevent vulnerability to cross-site scripting
- * (XSS) attacks.
- *
- * @since 1.5.0
- * @since 5.3.0 Formalized the existing and already documented parameters
- * by adding `...$args` to the function signature.
- *
- * @param string|array $key Either a query variable key, or an associative array of query variables.
- * @param string $value Optional. Either a query variable value, or a URL to act upon.
- * @param string $url Optional. A URL to act upon.
- * @return string New URL query string (unescaped).
- */
-function add_query_arg( ...$args ) {
- if ( is_array( $args[0] ) ) {
- if ( count( $args ) < 2 || false === $args[1] ) {
- $uri = $_SERVER['REQUEST_URI'];
- } else {
- $uri = $args[1];
- }
- } else {
- if ( count( $args ) < 3 || false === $args[2] ) {
- $uri = $_SERVER['REQUEST_URI'];
- } else {
- $uri = $args[2];
- }
- }
-
- $frag = strstr( $uri, '#' );
- if ( $frag ) {
- $uri = substr( $uri, 0, -strlen( $frag ) );
- } else {
- $frag = '';
- }
-
- if ( 0 === stripos( $uri, 'http://' ) ) {
- $protocol = 'http://';
- $uri = substr( $uri, 7 );
- } elseif ( 0 === stripos( $uri, 'https://' ) ) {
- $protocol = 'https://';
- $uri = substr( $uri, 8 );
- } else {
- $protocol = '';
- }
-
- if ( strpos( $uri, '?' ) !== false ) {
- list( $base, $query ) = explode( '?', $uri, 2 );
- $base .= '?';
- } elseif ( $protocol || strpos( $uri, '=' ) === false ) {
- $base = $uri . '?';
- $query = '';
- } else {
- $base = '';
- $query = $uri;
- }
-
- wp_parse_str( $query, $qs );
- $qs = urlencode_deep( $qs ); // this re-URL-encodes things that were already in the query string
- if ( is_array( $args[0] ) ) {
- foreach ( $args[0] as $k => $v ) {
- $qs[ $k ] = $v;
- }
- } else {
- $qs[ $args[0] ] = $args[1];
- }
-
- foreach ( $qs as $k => $v ) {
- if ( $v === false ) {
- unset( $qs[ $k ] );