X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/1c09677af04c9e37714e09b73eb9dbc5b2e3eb13..e0feb3b2e5b436a06bbb04fbc838d1cd6ec95399:/wp-includes/compat.php diff --git a/wp-includes/compat.php b/wp-includes/compat.php index ce7e954c..553faeb1 100644 --- a/wp-includes/compat.php +++ b/wp-includes/compat.php @@ -1,59 +1,155 @@ $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); +/** + * Returns whether PCRE/u (PCRE_UTF8 modifier) is available for use. + * + * @ignore + * @since 4.2.2 + * @access private + * + * @staticvar string $utf8_pcre + * + * @param bool $set - Used for testing only + * null : default - get PCRE/u capability + * false : Used for testing - return false for future calls to this function + * 'reset': Used for testing - restore default behavior of this function + */ +function _wp_can_use_pcre_u( $set = null ) { + static $utf8_pcre = 'reset'; + + if ( null !== $set ) { + $utf8_pcre = $set; + } + + if ( 'reset' === $utf8_pcre ) { + $utf8_pcre = @preg_match( '/^./u', 'a' ); + } + + return $utf8_pcre; } -if ( !function_exists('_') ) { - function _($string) { - return $string; +if ( ! function_exists( 'mb_substr' ) ) : + function mb_substr( $str, $start, $length = null, $encoding = null ) { + return _mb_substr( $str, $start, $length, $encoding ); } +endif; + +/* + * Only understands UTF-8 and 8bit. All other character sets will be treated as 8bit. + * For $encoding === UTF-8, the $str input is expected to be a valid UTF-8 byte sequence. + * The behavior of this function for invalid inputs is undefined. + */ +function _mb_substr( $str, $start, $length = null, $encoding = null ) { + if ( null === $encoding ) { + $encoding = get_option( 'blog_charset' ); + } + + // The solution below works only for UTF-8, + // so in case of a different charset just use built-in substr() + if ( ! in_array( $encoding, array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ) ) { + return is_null( $length ) ? substr( $str, $start ) : substr( $str, $start, $length ); + } + + if ( _wp_can_use_pcre_u() ) { + // Use the regex unicode support to separate the UTF-8 characters into an array + preg_match_all( '/./us', $str, $match ); + $chars = is_null( $length ) ? array_slice( $match[0], $start ) : array_slice( $match[0], $start, $length ); + return implode( '', $chars ); + } + + $regex = '/( + [\x00-\x7F] # single-byte sequences 0xxxxxxx + | [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx + | \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2 + | [\xE1-\xEC][\x80-\xBF]{2} + | \xED[\x80-\x9F][\x80-\xBF] + | [\xEE-\xEF][\x80-\xBF]{2} + | \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3 + | [\xF1-\xF3][\x80-\xBF]{3} + | \xF4[\x80-\x8F][\x80-\xBF]{2} + )/x'; + + $chars = array( '' ); // Start with 1 element instead of 0 since the first thing we do is pop + do { + // We had some string left over from the last round, but we counted it in that last round. + array_pop( $chars ); + + // Split by UTF-8 character, limit to 1000 characters (last array element will contain the rest of the string) + $pieces = preg_split( $regex, $str, 1000, PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY ); + + $chars = array_merge( $chars, $pieces ); + } while ( count( $pieces ) > 1 && $str = array_pop( $pieces ) ); // If there's anything left over, repeat the loop. + + return join( '', array_slice( $chars, $start, $length ) ); } -if (!function_exists('stripos')) { - function stripos($haystack, $needle, $offset = 0) { - return strpos(strtolower($haystack), strtolower($needle), $offset); +if ( ! function_exists( 'mb_strlen' ) ) : + function mb_strlen( $str, $encoding = null ) { + return _mb_strlen( $str, $encoding ); + } +endif; + +/* + * Only understands UTF-8 and 8bit. All other character sets will be treated as 8bit. + * For $encoding === UTF-8, the $str input is expected to be a valid UTF-8 byte sequence. + * The behavior of this function for invalid inputs is undefined. + */ +function _mb_strlen( $str, $encoding = null ) { + if ( null === $encoding ) { + $encoding = get_option( 'blog_charset' ); + } + + // The solution below works only for UTF-8, + // so in case of a different charset just use built-in strlen() + if ( ! in_array( $encoding, array( 'utf8', 'utf-8', 'UTF8', 'UTF-8' ) ) ) { + return strlen( $str ); } + + if ( _wp_can_use_pcre_u() ) { + // Use the regex unicode support to separate the UTF-8 characters into an array + preg_match_all( '/./us', $str, $match ); + return count( $match[0] ); + } + + $regex = '/(?: + [\x00-\x7F] # single-byte sequences 0xxxxxxx + | [\xC2-\xDF][\x80-\xBF] # double-byte sequences 110xxxxx 10xxxxxx + | \xE0[\xA0-\xBF][\x80-\xBF] # triple-byte sequences 1110xxxx 10xxxxxx * 2 + | [\xE1-\xEC][\x80-\xBF]{2} + | \xED[\x80-\x9F][\x80-\xBF] + | [\xEE-\xEF][\x80-\xBF]{2} + | \xF0[\x90-\xBF][\x80-\xBF]{2} # four-byte sequences 11110xxx 10xxxxxx * 3 + | [\xF1-\xF3][\x80-\xBF]{3} + | \xF4[\x80-\x8F][\x80-\xBF]{2} + )/x'; + + $count = 1; // Start at 1 instead of 0 since the first thing we do is decrement + do { + // We had some string left over from the last round, but we counted it in that last round. + $count--; + + // Split by UTF-8 character, limit to 1000 characters (last array element will contain the rest of the string) + $pieces = preg_split( $regex, $str, 1000 ); + + // Increment + $count += count( $pieces ); + } while ( $str = array_pop( $pieces ) ); // If there's anything left over, repeat the loop. + + // Fencepost: preg_split() always returns one extra item in the array + return --$count; } if ( !function_exists('hash_hmac') ): @@ -85,78 +181,82 @@ function _hash_hmac($algo, $data, $key, $raw_output = false) { return $hmac; } -if ( !function_exists('mb_substr') ): - function mb_substr( $str, $start, $length=null, $encoding=null ) { - return _mb_substr($str, $start, $length, $encoding); - } -endif; - -function _mb_substr( $str, $start, $length=null, $encoding=null ) { - // the solution below, works only for utf-8, so in case of a different - // charset, just use built-in substr - $charset = get_option( 'blog_charset' ); - if ( !in_array( $charset, array('utf8', 'utf-8', 'UTF8', 'UTF-8') ) ) { - return is_null( $length )? substr( $str, $start ) : substr( $str, $start, $length); - } - // use the regex unicode support to separate the UTF-8 characters into an array - preg_match_all( '/./us', $str, $match ); - $chars = is_null( $length )? array_slice( $match[0], $start ) : array_slice( $match[0], $start, $length ); - return implode( '', $chars ); -} - -if ( !function_exists( 'htmlspecialchars_decode' ) ) { - // Added in PHP 5.1.0 - // Error checks from PEAR::PHP_Compat - function htmlspecialchars_decode( $string, $quote_style = ENT_COMPAT ) - { - if ( !is_scalar( $string ) ) { - trigger_error( 'htmlspecialchars_decode() expects parameter 1 to be string, ' . gettype( $string ) . ' given', E_USER_WARNING ); - return; - } - - if ( !is_int( $quote_style ) && $quote_style !== null ) { - trigger_error( 'htmlspecialchars_decode() expects parameter 2 to be integer, ' . gettype( $quote_style ) . ' given', E_USER_WARNING ); - return; - } - - return wp_specialchars_decode( $string, $quote_style ); - } -} - -// For PHP < 5.2.0 if ( !function_exists('json_encode') ) { function json_encode( $string ) { global $wp_json; - if ( !is_a($wp_json, 'Services_JSON') ) { - require_once( 'class-json.php' ); + if ( ! ( $wp_json instanceof Services_JSON ) ) { + require_once( ABSPATH . WPINC . '/class-json.php' ); $wp_json = new Services_JSON(); } - return $wp_json->encode( $string ); + return $wp_json->encodeUnsafe( $string ); } } if ( !function_exists('json_decode') ) { - function json_decode( $string ) { + /** + * @global Services_JSON $wp_json + * @param string $string + * @param bool $assoc_array + * @return object|array + */ + function json_decode( $string, $assoc_array = false ) { global $wp_json; - if ( !is_a($wp_json, 'Services_JSON') ) { - require_once( 'class-json.php' ); + if ( ! ($wp_json instanceof Services_JSON ) ) { + require_once( ABSPATH . WPINC . '/class-json.php' ); $wp_json = new Services_JSON(); } - return $wp_json->decode( $string ); + $res = $wp_json->decode( $string ); + if ( $assoc_array ) + $res = _json_decode_object_helper( $res ); + return $res; + } + + /** + * @param object $data + * @return array + */ + function _json_decode_object_helper($data) { + if ( is_object($data) ) + $data = get_object_vars($data); + return is_array($data) ? array_map(__FUNCTION__, $data) : $data; } } -// pathinfo that fills 'filename' without extension like in PHP 5.2+ -function pathinfo52($path) { - $parts = pathinfo($path); - if ( !isset($parts['filename']) ) { - $parts['filename'] = substr( $parts['basename'], 0, strrpos($parts['basename'], '.') ); - if ( empty($parts['filename']) ) // there's no extension - $parts['filename'] = $parts['basename']; +if ( ! function_exists( 'hash_equals' ) ) : +/** + * Compare two strings in constant time. + * + * This function was added in PHP 5.6. + * It can leak the length of a string. + * + * @since 3.9.2 + * + * @param string $a Expected string. + * @param string $b Actual string. + * @return bool Whether strings are equal. + */ +function hash_equals( $a, $b ) { + $a_length = strlen( $a ); + if ( $a_length !== strlen( $b ) ) { + return false; + } + $result = 0; + + // Do not attempt to "optimize" this. + for ( $i = 0; $i < $a_length; $i++ ) { + $result |= ord( $a[ $i ] ) ^ ord( $b[ $i ] ); } - return $parts; + + return $result === 0; +} +endif; + +// JSON_PRETTY_PRINT was introduced in PHP 5.4 +// Defined here to prevent a notice when using it with wp_json_encode() +if ( ! defined( 'JSON_PRETTY_PRINT' ) ) { + define( 'JSON_PRETTY_PRINT', 128 ); }