From c1f9b1f7b1b77776192048005dcc66dcf3df2bfb Mon Sep 17 00:00:00 2001 From: Pierre Schmitz Date: Sat, 27 Dec 2014 15:41:37 +0100 Subject: Update to MediaWiki 1.24.1 --- includes/utils/IP.php | 738 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 738 insertions(+) create mode 100644 includes/utils/IP.php (limited to 'includes/utils/IP.php') diff --git a/includes/utils/IP.php b/includes/utils/IP.php new file mode 100644 index 00000000..0e2db8cc --- /dev/null +++ b/includes/utils/IP.php @@ -0,0 +1,738 @@ +", Aaron Schulz + */ + +// Some regex definition to "play" with IP address and IP address blocks + +// An IPv4 address is made of 4 bytes from x00 to xFF which is d0 to d255 +define( 'RE_IP_BYTE', '(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|0?[0-9]?[0-9])' ); +define( 'RE_IP_ADD', RE_IP_BYTE . '\.' . RE_IP_BYTE . '\.' . RE_IP_BYTE . '\.' . RE_IP_BYTE ); +// An IPv4 block is an IP address and a prefix (d1 to d32) +define( 'RE_IP_PREFIX', '(3[0-2]|[12]?\d)' ); +define( 'RE_IP_BLOCK', RE_IP_ADD . '\/' . RE_IP_PREFIX ); + +// An IPv6 address is made up of 8 words (each x0000 to xFFFF). +// However, the "::" abbreviation can be used on consecutive x0000 words. +define( 'RE_IPV6_WORD', '([0-9A-Fa-f]{1,4})' ); +define( 'RE_IPV6_PREFIX', '(12[0-8]|1[01][0-9]|[1-9]?\d)' ); +define( 'RE_IPV6_ADD', + '(?:' . // starts with "::" (including "::") + ':(?::|(?::' . RE_IPV6_WORD . '){1,7})' . + '|' . // ends with "::" (except "::") + RE_IPV6_WORD . '(?::' . RE_IPV6_WORD . '){0,6}::' . + '|' . // contains one "::" in the middle (the ^ makes the test fail if none found) + RE_IPV6_WORD . '(?::((?(-1)|:))?' . RE_IPV6_WORD . '){1,6}(?(-2)|^)' . + '|' . // contains no "::" + RE_IPV6_WORD . '(?::' . RE_IPV6_WORD . '){7}' . + ')' +); +// An IPv6 block is an IP address and a prefix (d1 to d128) +define( 'RE_IPV6_BLOCK', RE_IPV6_ADD . '\/' . RE_IPV6_PREFIX ); +// For IPv6 canonicalization (NOT for strict validation; these are quite lax!) +define( 'RE_IPV6_GAP', ':(?:0+:)*(?::(?:0+:)*)?' ); +define( 'RE_IPV6_V4_PREFIX', '0*' . RE_IPV6_GAP . '(?:ffff:)?' ); + +// This might be useful for regexps used elsewhere, matches any IPv6 or IPv6 address or network +define( 'IP_ADDRESS_STRING', + '(?:' . + RE_IP_ADD . '(?:\/' . RE_IP_PREFIX . ')?' . // IPv4 + '|' . + RE_IPV6_ADD . '(?:\/' . RE_IPV6_PREFIX . ')?' . // IPv6 + ')' +); + +/** + * A collection of public static functions to play with IP address + * and IP blocks. + */ +class IP { + /** @var IPSet */ + private static $proxyIpSet = null; + + /** + * Determine if a string is as valid IP address or network (CIDR prefix). + * SIIT IPv4-translated addresses are rejected. + * Note: canonicalize() tries to convert translated addresses to IPv4. + * + * @param string $ip Possible IP address + * @return bool + */ + public static function isIPAddress( $ip ) { + return (bool)preg_match( '/^' . IP_ADDRESS_STRING . '$/', $ip ); + } + + /** + * Given a string, determine if it as valid IP in IPv6 only. + * Note: Unlike isValid(), this looks for networks too. + * + * @param string $ip Possible IP address + * @return bool + */ + public static function isIPv6( $ip ) { + return (bool)preg_match( '/^' . RE_IPV6_ADD . '(?:\/' . RE_IPV6_PREFIX . ')?$/', $ip ); + } + + /** + * Given a string, determine if it as valid IP in IPv4 only. + * Note: Unlike isValid(), this looks for networks too. + * + * @param string $ip Possible IP address + * @return bool + */ + public static function isIPv4( $ip ) { + return (bool)preg_match( '/^' . RE_IP_ADD . '(?:\/' . RE_IP_PREFIX . ')?$/', $ip ); + } + + /** + * Validate an IP address. Ranges are NOT considered valid. + * SIIT IPv4-translated addresses are rejected. + * Note: canonicalize() tries to convert translated addresses to IPv4. + * + * @param string $ip + * @return bool True if it is valid + */ + public static function isValid( $ip ) { + return ( preg_match( '/^' . RE_IP_ADD . '$/', $ip ) + || preg_match( '/^' . RE_IPV6_ADD . '$/', $ip ) ); + } + + /** + * Validate an IP Block (valid address WITH a valid prefix). + * SIIT IPv4-translated addresses are rejected. + * Note: canonicalize() tries to convert translated addresses to IPv4. + * + * @param string $ipblock + * @return bool True if it is valid + */ + public static function isValidBlock( $ipblock ) { + return ( preg_match( '/^' . RE_IPV6_BLOCK . '$/', $ipblock ) + || preg_match( '/^' . RE_IP_BLOCK . '$/', $ipblock ) ); + } + + /** + * Convert an IP into a verbose, uppercase, normalized form. + * IPv6 addresses in octet notation are expanded to 8 words. + * IPv4 addresses are just trimmed. + * + * @param string $ip IP address in quad or octet form (CIDR or not). + * @return string + */ + public static function sanitizeIP( $ip ) { + $ip = trim( $ip ); + if ( $ip === '' ) { + return null; + } + if ( self::isIPv4( $ip ) || !self::isIPv6( $ip ) ) { + return $ip; // nothing else to do for IPv4 addresses or invalid ones + } + // Remove any whitespaces, convert to upper case + $ip = strtoupper( $ip ); + // Expand zero abbreviations + $abbrevPos = strpos( $ip, '::' ); + if ( $abbrevPos !== false ) { + // We know this is valid IPv6. Find the last index of the + // address before any CIDR number (e.g. "a:b:c::/24"). + $CIDRStart = strpos( $ip, "/" ); + $addressEnd = ( $CIDRStart !== false ) + ? $CIDRStart - 1 + : strlen( $ip ) - 1; + // If the '::' is at the beginning... + if ( $abbrevPos == 0 ) { + $repeat = '0:'; + $extra = ( $ip == '::' ) ? '0' : ''; // for the address '::' + $pad = 9; // 7+2 (due to '::') + // If the '::' is at the end... + } elseif ( $abbrevPos == ( $addressEnd - 1 ) ) { + $repeat = ':0'; + $extra = ''; + $pad = 9; // 7+2 (due to '::') + // If the '::' is in the middle... + } else { + $repeat = ':0'; + $extra = ':'; + $pad = 8; // 6+2 (due to '::') + } + $ip = str_replace( '::', + str_repeat( $repeat, $pad - substr_count( $ip, ':' ) ) . $extra, + $ip + ); + } + // Remove leading zeros from each bloc as needed + $ip = preg_replace( '/(^|:)0+(' . RE_IPV6_WORD . ')/', '$1$2', $ip ); + + return $ip; + } + + /** + * Prettify an IP for display to end users. + * This will make it more compact and lower-case. + * + * @param string $ip + * @return string + */ + public static function prettifyIP( $ip ) { + $ip = self::sanitizeIP( $ip ); // normalize (removes '::') + if ( self::isIPv6( $ip ) ) { + // Split IP into an address and a CIDR + if ( strpos( $ip, '/' ) !== false ) { + list( $ip, $cidr ) = explode( '/', $ip, 2 ); + } else { + list( $ip, $cidr ) = array( $ip, '' ); + } + // Get the largest slice of words with multiple zeros + $offset = 0; + $longest = $longestPos = false; + while ( preg_match( + '!(?:^|:)0(?::0)+(?:$|:)!', $ip, $m, PREG_OFFSET_CAPTURE, $offset + ) ) { + list( $match, $pos ) = $m[0]; // full match + if ( strlen( $match ) > strlen( $longest ) ) { + $longest = $match; + $longestPos = $pos; + } + $offset = ( $pos + strlen( $match ) ); // advance + } + if ( $longest !== false ) { + // Replace this portion of the string with the '::' abbreviation + $ip = substr_replace( $ip, '::', $longestPos, strlen( $longest ) ); + } + // Add any CIDR back on + if ( $cidr !== '' ) { + $ip = "{$ip}/{$cidr}"; + } + // Convert to lower case to make it more readable + $ip = strtolower( $ip ); + } + + return $ip; + } + + /** + * Given a host/port string, like one might find in the host part of a URL + * per RFC 2732, split the hostname part and the port part and return an + * array with an element for each. If there is no port part, the array will + * have false in place of the port. If the string was invalid in some way, + * false is returned. + * + * This was easy with IPv4 and was generally done in an ad-hoc way, but + * with IPv6 it's somewhat more complicated due to the need to parse the + * square brackets and colons. + * + * A bare IPv6 address is accepted despite the lack of square brackets. + * + * @param string $both The string with the host and port + * @return array + */ + public static function splitHostAndPort( $both ) { + if ( substr( $both, 0, 1 ) === '[' ) { + if ( preg_match( '/^\[(' . RE_IPV6_ADD . ')\](?::(?P\d+))?$/', $both, $m ) ) { + if ( isset( $m['port'] ) ) { + return array( $m[1], intval( $m['port'] ) ); + } else { + return array( $m[1], false ); + } + } else { + // Square bracket found but no IPv6 + return false; + } + } + $numColons = substr_count( $both, ':' ); + if ( $numColons >= 2 ) { + // Is it a bare IPv6 address? + if ( preg_match( '/^' . RE_IPV6_ADD . '$/', $both ) ) { + return array( $both, false ); + } else { + // Not valid IPv6, but too many colons for anything else + return false; + } + } + if ( $numColons >= 1 ) { + // Host:port? + $bits = explode( ':', $both ); + if ( preg_match( '/^\d+/', $bits[1] ) ) { + return array( $bits[0], intval( $bits[1] ) ); + } else { + // Not a valid port + return false; + } + } + + // Plain hostname + return array( $both, false ); + } + + /** + * Given a host name and a port, combine them into host/port string like + * you might find in a URL. If the host contains a colon, wrap it in square + * brackets like in RFC 2732. If the port matches the default port, omit + * the port specification + * + * @param string $host + * @param int $port + * @param bool|int $defaultPort + * @return string + */ + public static function combineHostAndPort( $host, $port, $defaultPort = false ) { + if ( strpos( $host, ':' ) !== false ) { + $host = "[$host]"; + } + if ( $defaultPort !== false && $port == $defaultPort ) { + return $host; + } else { + return "$host:$port"; + } + } + + /** + * Convert an IPv4 or IPv6 hexadecimal representation back to readable format + * + * @param string $hex Number, with "v6-" prefix if it is IPv6 + * @return string Quad-dotted (IPv4) or octet notation (IPv6) + */ + public static function formatHex( $hex ) { + if ( substr( $hex, 0, 3 ) == 'v6-' ) { // IPv6 + return self::hexToOctet( substr( $hex, 3 ) ); + } else { // IPv4 + return self::hexToQuad( $hex ); + } + } + + /** + * Converts a hexadecimal number to an IPv6 address in octet notation + * + * @param string $ip_hex Pure hex (no v6- prefix) + * @return string (of format a:b:c:d:e:f:g:h) + */ + public static function hexToOctet( $ip_hex ) { + // Pad hex to 32 chars (128 bits) + $ip_hex = str_pad( strtoupper( $ip_hex ), 32, '0', STR_PAD_LEFT ); + // Separate into 8 words + $ip_oct = substr( $ip_hex, 0, 4 ); + for ( $n = 1; $n < 8; $n++ ) { + $ip_oct .= ':' . substr( $ip_hex, 4 * $n, 4 ); + } + // NO leading zeroes + $ip_oct = preg_replace( '/(^|:)0+(' . RE_IPV6_WORD . ')/', '$1$2', $ip_oct ); + + return $ip_oct; + } + + /** + * Converts a hexadecimal number to an IPv4 address in quad-dotted notation + * + * @param string $ip_hex Pure hex + * @return string (of format a.b.c.d) + */ + public static function hexToQuad( $ip_hex ) { + // Pad hex to 8 chars (32 bits) + $ip_hex = str_pad( strtoupper( $ip_hex ), 8, '0', STR_PAD_LEFT ); + // Separate into four quads + $s = ''; + for ( $i = 0; $i < 4; $i++ ) { + if ( $s !== '' ) { + $s .= '.'; + } + $s .= base_convert( substr( $ip_hex, $i * 2, 2 ), 16, 10 ); + } + + return $s; + } + + /** + * Determine if an IP address really is an IP address, and if it is public, + * i.e. not RFC 1918 or similar + * + * @param string $ip + * @return bool + */ + public static function isPublic( $ip ) { + static $privateSet = null; + if ( !$privateSet ) { + $privateSet = new IPSet( array( + '10.0.0.0/8', # RFC 1918 (private) + '172.16.0.0/12', # RFC 1918 (private) + '192.168.0.0/16', # RFC 1918 (private) + '0.0.0.0/8', # this network + '127.0.0.0/8', # loopback + 'fc00::/7', # RFC 4193 (local) + '0:0:0:0:0:0:0:1', # loopback + ) ); + } + return !$privateSet->match( $ip ); + } + + /** + * Return a zero-padded upper case hexadecimal representation of an IP address. + * + * Hexadecimal addresses are used because they can easily be extended to + * IPv6 support. To separate the ranges, the return value from this + * function for an IPv6 address will be prefixed with "v6-", a non- + * hexadecimal string which sorts after the IPv4 addresses. + * + * @param string $ip Quad dotted/octet IP address. + * @return string|bool False on failure + */ + public static function toHex( $ip ) { + if ( self::isIPv6( $ip ) ) { + $n = 'v6-' . self::IPv6ToRawHex( $ip ); + } elseif ( self::isIPv4( $ip ) ) { + // Bug 60035: an IP with leading 0's fails in ip2long sometimes (e.g. *.08) + $ip = preg_replace( '/(?<=\.)0+(?=[1-9])/', '', $ip ); + $n = ip2long( $ip ); + if ( $n < 0 ) { + $n += pow( 2, 32 ); + # On 32-bit platforms (and on Windows), 2^32 does not fit into an int, + # so $n becomes a float. We convert it to string instead. + if ( is_float( $n ) ) { + $n = (string)$n; + } + } + if ( $n !== false ) { + # Floating points can handle the conversion; faster than wfBaseConvert() + $n = strtoupper( str_pad( base_convert( $n, 10, 16 ), 8, '0', STR_PAD_LEFT ) ); + } + } else { + $n = false; + } + + return $n; + } + + /** + * Given an IPv6 address in octet notation, returns a pure hex string. + * + * @param string $ip Octet ipv6 IP address. + * @return string|bool Pure hex (uppercase); false on failure + */ + private static function IPv6ToRawHex( $ip ) { + $ip = self::sanitizeIP( $ip ); + if ( !$ip ) { + return false; + } + $r_ip = ''; + foreach ( explode( ':', $ip ) as $v ) { + $r_ip .= str_pad( $v, 4, 0, STR_PAD_LEFT ); + } + + return $r_ip; + } + + /** + * Convert a network specification in CIDR notation + * to an integer network and a number of bits + * + * @param string $range IP with CIDR prefix + * @return array(int or string, int) + */ + public static function parseCIDR( $range ) { + if ( self::isIPv6( $range ) ) { + return self::parseCIDR6( $range ); + } + $parts = explode( '/', $range, 2 ); + if ( count( $parts ) != 2 ) { + return array( false, false ); + } + list( $network, $bits ) = $parts; + $network = ip2long( $network ); + if ( $network !== false && is_numeric( $bits ) && $bits >= 0 && $bits <= 32 ) { + if ( $bits == 0 ) { + $network = 0; + } else { + $network &= ~( ( 1 << ( 32 - $bits ) ) - 1 ); + } + # Convert to unsigned + if ( $network < 0 ) { + $network += pow( 2, 32 ); + } + } else { + $network = false; + $bits = false; + } + + return array( $network, $bits ); + } + + /** + * Given a string range in a number of formats, + * return the start and end of the range in hexadecimal. + * + * Formats are: + * 1.2.3.4/24 CIDR + * 1.2.3.4 - 1.2.3.5 Explicit range + * 1.2.3.4 Single IP + * + * 2001:0db8:85a3::7344/96 CIDR + * 2001:0db8:85a3::7344 - 2001:0db8:85a3::7344 Explicit range + * 2001:0db8:85a3::7344 Single IP + * @param string $range IP range + * @return array(string, string) + */ + public static function parseRange( $range ) { + // CIDR notation + if ( strpos( $range, '/' ) !== false ) { + if ( self::isIPv6( $range ) ) { + return self::parseRange6( $range ); + } + list( $network, $bits ) = self::parseCIDR( $range ); + if ( $network === false ) { + $start = $end = false; + } else { + $start = sprintf( '%08X', $network ); + $end = sprintf( '%08X', $network + pow( 2, ( 32 - $bits ) ) - 1 ); + } + // Explicit range + } elseif ( strpos( $range, '-' ) !== false ) { + list( $start, $end ) = array_map( 'trim', explode( '-', $range, 2 ) ); + if ( self::isIPv6( $start ) && self::isIPv6( $end ) ) { + return self::parseRange6( $range ); + } + if ( self::isIPv4( $start ) && self::isIPv4( $end ) ) { + $start = self::toHex( $start ); + $end = self::toHex( $end ); + if ( $start > $end ) { + $start = $end = false; + } + } else { + $start = $end = false; + } + } else { + # Single IP + $start = $end = self::toHex( $range ); + } + if ( $start === false || $end === false ) { + return array( false, false ); + } else { + return array( $start, $end ); + } + } + + /** + * Convert a network specification in IPv6 CIDR notation to an + * integer network and a number of bits + * + * @param string $range + * + * @return array(string, int) + */ + private static function parseCIDR6( $range ) { + # Explode into + $parts = explode( '/', IP::sanitizeIP( $range ), 2 ); + if ( count( $parts ) != 2 ) { + return array( false, false ); + } + list( $network, $bits ) = $parts; + $network = self::IPv6ToRawHex( $network ); + if ( $network !== false && is_numeric( $bits ) && $bits >= 0 && $bits <= 128 ) { + if ( $bits == 0 ) { + $network = "0"; + } else { + # Native 32 bit functions WONT work here!!! + # Convert to a padded binary number + $network = wfBaseConvert( $network, 16, 2, 128 ); + # Truncate the last (128-$bits) bits and replace them with zeros + $network = str_pad( substr( $network, 0, $bits ), 128, 0, STR_PAD_RIGHT ); + # Convert back to an integer + $network = wfBaseConvert( $network, 2, 10 ); + } + } else { + $network = false; + $bits = false; + } + + return array( $network, (int)$bits ); + } + + /** + * Given a string range in a number of formats, return the + * start and end of the range in hexadecimal. For IPv6. + * + * Formats are: + * 2001:0db8:85a3::7344/96 CIDR + * 2001:0db8:85a3::7344 - 2001:0db8:85a3::7344 Explicit range + * 2001:0db8:85a3::7344/96 Single IP + * + * @param string $range + * + * @return array(string, string) + */ + private static function parseRange6( $range ) { + # Expand any IPv6 IP + $range = IP::sanitizeIP( $range ); + // CIDR notation... + if ( strpos( $range, '/' ) !== false ) { + list( $network, $bits ) = self::parseCIDR6( $range ); + if ( $network === false ) { + $start = $end = false; + } else { + $start = wfBaseConvert( $network, 10, 16, 32, false ); + # Turn network to binary (again) + $end = wfBaseConvert( $network, 10, 2, 128 ); + # Truncate the last (128-$bits) bits and replace them with ones + $end = str_pad( substr( $end, 0, $bits ), 128, 1, STR_PAD_RIGHT ); + # Convert to hex + $end = wfBaseConvert( $end, 2, 16, 32, false ); + # see toHex() comment + $start = "v6-$start"; + $end = "v6-$end"; + } + // Explicit range notation... + } elseif ( strpos( $range, '-' ) !== false ) { + list( $start, $end ) = array_map( 'trim', explode( '-', $range, 2 ) ); + $start = self::toHex( $start ); + $end = self::toHex( $end ); + if ( $start > $end ) { + $start = $end = false; + } + } else { + # Single IP + $start = $end = self::toHex( $range ); + } + if ( $start === false || $end === false ) { + return array( false, false ); + } else { + return array( $start, $end ); + } + } + + /** + * Determine if a given IPv4/IPv6 address is in a given CIDR network + * + * @param string $addr The address to check against the given range. + * @param string $range The range to check the given address against. + * @return bool Whether or not the given address is in the given range. + */ + public static function isInRange( $addr, $range ) { + $hexIP = self::toHex( $addr ); + list( $start, $end ) = self::parseRange( $range ); + + return ( strcmp( $hexIP, $start ) >= 0 && + strcmp( $hexIP, $end ) <= 0 ); + } + + /** + * Convert some unusual representations of IPv4 addresses to their + * canonical dotted quad representation. + * + * This currently only checks a few IPV4-to-IPv6 related cases. More + * unusual representations may be added later. + * + * @param string $addr Something that might be an IP address + * @return string Valid dotted quad IPv4 address or null + */ + public static function canonicalize( $addr ) { + // remove zone info (bug 35738) + $addr = preg_replace( '/\%.*/', '', $addr ); + + if ( self::isValid( $addr ) ) { + return $addr; + } + // Turn mapped addresses from ::ce:ffff:1.2.3.4 to 1.2.3.4 + if ( strpos( $addr, ':' ) !== false && strpos( $addr, '.' ) !== false ) { + $addr = substr( $addr, strrpos( $addr, ':' ) + 1 ); + if ( self::isIPv4( $addr ) ) { + return $addr; + } + } + // IPv6 loopback address + $m = array(); + if ( preg_match( '/^0*' . RE_IPV6_GAP . '1$/', $addr, $m ) ) { + return '127.0.0.1'; + } + // IPv4-mapped and IPv4-compatible IPv6 addresses + if ( preg_match( '/^' . RE_IPV6_V4_PREFIX . '(' . RE_IP_ADD . ')$/i', $addr, $m ) ) { + return $m[1]; + } + if ( preg_match( '/^' . RE_IPV6_V4_PREFIX . RE_IPV6_WORD . + ':' . RE_IPV6_WORD . '$/i', $addr, $m ) + ) { + return long2ip( ( hexdec( $m[1] ) << 16 ) + hexdec( $m[2] ) ); + } + + return null; // give up + } + + /** + * Gets rid of unneeded numbers in quad-dotted/octet IP strings + * For example, 127.111.113.151/24 -> 127.111.113.0/24 + * @param string $range IP address to normalize + * @return string + */ + public static function sanitizeRange( $range ) { + list( /*...*/, $bits ) = self::parseCIDR( $range ); + list( $start, /*...*/ ) = self::parseRange( $range ); + $start = self::formatHex( $start ); + if ( $bits === false ) { + return $start; // wasn't actually a range + } + + return "$start/$bits"; + } + + /** + * Checks if an IP is a trusted proxy provider. + * Useful to tell if X-Forwarded-For data is possibly bogus. + * Squid cache servers for the site are whitelisted. + * @since 1.24 + * + * @param string $ip + * @return bool + */ + public static function isTrustedProxy( $ip ) { + $trusted = self::isConfiguredProxy( $ip ); + wfRunHooks( 'IsTrustedProxy', array( &$ip, &$trusted ) ); + return $trusted; + } + + /** + * Checks if an IP matches a proxy we've configured + * @since 1.24 + * + * @param string $ip + * @return bool + */ + public static function isConfiguredProxy( $ip ) { + global $wgSquidServers, $wgSquidServersNoPurge; + + wfProfileIn( __METHOD__ ); + // Quick check of known singular proxy servers + $trusted = in_array( $ip, $wgSquidServers ); + + // Check against addresses and CIDR nets in the NoPurge list + if ( !$trusted ) { + if ( !self::$proxyIpSet ) { + self::$proxyIpSet = new IPSet( $wgSquidServersNoPurge ); + } + $trusted = self::$proxyIpSet->match( $ip ); + } + wfProfileOut( __METHOD__ ); + + return $trusted; + } + + /** + * Clears precomputed data used for proxy support. + * Use this only for unit tests. + */ + public static function clearCaches() { + self::$proxyIpSet = null; + } +} -- cgit v1.2.2