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Add support for lan
/loopback
values to ipaddress=
option
Related issue: https://github.com/uBlockOrigin/uBlock-issues/issues/1070
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parent
839857dd4b
commit
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@ -2970,14 +2970,63 @@ registerFilterClass(FilterOnHeaders);
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class FilterIPAddress {
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static match(idata) {
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const ipaddr = $requestAddress;
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const details = filterRefs[filterData[idata+1]];
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if ( details.isRegex === false ) {
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return $requestAddress === details.pattern;
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if ( details.isRegex ) {
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if ( details.$re === undefined ) {
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details.$re = new RegExp(details.pattern.slice(1, -1));
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}
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return details.$re.test(ipaddr);
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}
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if ( details.$re === undefined ) {
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details.$re = new RegExp(details.pattern.slice(1, -1));
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if ( ipaddr === '' ) { return false; }
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if ( details.pattern === 'lan' ) {
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return this.isLAN(ipaddr);
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}
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return details.$re.test($requestAddress);
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if ( details.pattern === 'loopback' ) {
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return this.isLoopback(ipaddr);
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}
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return ipaddr.startsWith(details.pattern);
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}
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// https://github.com/uBlockOrigin/uAssets/blob/master/filters/lan-block.txt
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// https://en.wikipedia.org/wiki/Reserved_IP_addresses
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// `ipaddr` is assumed well-formed
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static isLAN(ipaddr) {
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const c0 = ipaddr.charCodeAt(0);
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// ipv4
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if ( c0 === 0x30 /* 0 */ ) {
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return ipaddr.startsWith('0.');
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}
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if ( c0 === 0x31 /* 1 */ ) {
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if ( ipaddr.startsWith('10.') ) { return true; }
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if ( ipaddr.startsWith('127.') ) { return true; }
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if ( ipaddr.startsWith('169.254.') ) { return true; }
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if ( ipaddr.startsWith('172.') ) {
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const v = parseInt(ipaddr.slice(4), 10);
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return v >= 16 && v <= 31;
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}
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return ipaddr.startsWith('192.168.');
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}
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if ( c0 !== 0x5B /* [ */ ) { return false; }
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// ipv6
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const c1 = ipaddr.charCodeAt(1);
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if ( c1 === 0x3A /* : */ ) {
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if ( ipaddr.startsWith('[::') === false ) { return false; }
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if ( ipaddr === '[::]' || ipaddr === '[::1]' ) { return true; }
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if ( ipaddr.startsWith('[::ffff:') === false ) { return false; }
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return /^\[::ffff:(7f\w{2}|a\w{2}|a9fe|c0a8):\w+\]$/.test(ipaddr);
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}
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if ( c1 === 0x36 /* 6 */ ) {
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return ipaddr.startsWith('[64:ff9b:');
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}
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if ( c1 === 0x66 /* f */ ) {
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return /^\[f[cd]\w{2}:/.test(ipaddr);
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}
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return false;
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}
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static isLoopback(ipaddr) {
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return ipaddr === '127.0.0.1' || ipaddr === '[::1]';
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}
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static compile(details) {
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