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Add new static network filter option: redirect-rule=
Related issue: - https://github.com/uBlockOrigin/uBlock-issues/issues/310 The purpose of this new option is to add the ability to create standalone redirect rule without being forced to create a block filter (a corresponding block filter is always created when using the `redirect=`). Additionally: The syntax `*$redirect=token,...` is now supported, there is no need to "trick" the filter parser with `*/*$redirect=token,...` in order to create redirect rules which are meant to match all paths. Filters of the form `|http*://` will be normalized into two corresponding filters `|https://` and `|http://` so as to reduce the number of filters in the buckets of untokenizable filters.
This commit is contained in:
Raymond Hill
parent
663fd5fab0
commit
aa73f292ec
@ -303,7 +303,7 @@ RedirectEngine.prototype.lookup = function(fctxt) {
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for (;;) {
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if ( this.ruleSources.has(src) ) {
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for ( let i = 0; i < n; i++ ) {
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const entries = this.rules.get(src + ' ' + desAll[i] + ' ' + type);
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const entries = this.rules.get(`${src} ${desAll[i]} ${type}`);
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if ( entries && this.lookupToken(entries, reqURL) ) {
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return this.resourceNameRegister;
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}
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@ -414,14 +414,18 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
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}
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}
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const pattern =
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const path = matches[2] || '';
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let pattern =
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des
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.replace(/\*/g, '[\\w.%-]*')
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.replace(/\./g, '\\.') +
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matches[2]
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path
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.replace(/[.+?{}()|[\]\/\\]/g, '\\$&')
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.replace(/\^/g, '[^\\w.%-]')
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.replace(/\*/g, '.*?');
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if ( pattern === '' ) {
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pattern = '^';
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}
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let type,
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redirect = '',
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@ -431,6 +435,10 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
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redirect = option.slice(9);
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continue;
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}
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if ( option.startsWith('redirect-rule=') ) {
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redirect = option.slice(14);
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continue;
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}
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if ( option.startsWith('domain=') ) {
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srchns = option.slice(7).split('|');
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continue;
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@ -468,12 +476,14 @@ RedirectEngine.prototype.compileRuleFromStaticFilter = function(line) {
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out.push(`${srchn}\t${deshn}\t${type}\t${pattern}\t${redirect}`);
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}
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if ( out.length === 0 ) { return; }
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return out;
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};
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/******************************************************************************/
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RedirectEngine.prototype.reFilterParser = /^(?:\|\|([^\/:?#^]+)|\*)([^$]+)\$([^$]+)$/;
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RedirectEngine.prototype.reFilterParser = /^(?:\|\|([^\/:?#^]+)|\*)([^$]+)?\$([^$]+)$/;
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RedirectEngine.prototype.supportedTypes = new Map([
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[ 'css', 'stylesheet' ],
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@ -1883,7 +1883,7 @@ FilterParser.prototype.reset = function() {
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this.isPureHostname = false;
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this.isRegex = false;
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this.raw = '';
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this.redirect = false;
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this.redirect = 0;
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this.token = '*';
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this.tokenHash = this.noTokenHash;
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this.tokenBeg = 0;
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@ -1963,25 +1963,9 @@ FilterParser.prototype.parseOptions = function(s) {
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this.parsePartyOption(false, not);
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continue;
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}
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// https://issues.adblockplus.org/ticket/616
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// `generichide` concept already supported, just a matter of
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// adding support for the new keyword.
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if ( opt === 'elemhide' || opt === 'generichide' ) {
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if ( not === false ) {
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this.parseTypeOption('generichide', false);
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continue;
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}
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this.unsupported = true;
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break;
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}
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// Test before handling all other types.
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if ( opt.startsWith('redirect=') ) {
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if ( this.action === BlockAction ) {
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this.redirect = true;
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continue;
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}
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this.unsupported = true;
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break;
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if ( opt === 'first-party' || opt === '1p' ) {
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this.parsePartyOption(true, not);
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continue;
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}
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if ( this.toNormalizedType.hasOwnProperty(opt) ) {
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this.parseTypeOption(opt, not);
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@ -2002,8 +1986,12 @@ FilterParser.prototype.parseOptions = function(s) {
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this.important = Important;
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continue;
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}
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if ( opt === 'first-party' || opt === '1p' ) {
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this.parsePartyOption(true, not);
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if ( /^redirect(?:-rule)?=/.test(opt) ) {
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if ( this.redirect !== 0 ) {
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this.unsupported = true;
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break;
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}
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this.redirect = opt.charCodeAt(8) === 0x3D /* '=' */ ? 1 : 2;
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continue;
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}
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if (
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@ -2036,6 +2024,11 @@ FilterParser.prototype.parseOptions = function(s) {
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break;
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}
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// Redirect rules can't be exception filters.
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if ( this.redirect !== 0 && this.action !== BlockAction ) {
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this.unsupported = true;
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}
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// Negated network types? Toggle on all network type bits.
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// Negated non-network types can only toggle themselves.
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if ( (this.notTypes & allNetworkTypesBits) !== 0 ) {
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@ -2216,6 +2209,10 @@ FilterParser.prototype.parse = function(raw) {
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if ( s === '' ) {
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s = '*';
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}
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// TODO: remove once redirect rules with `*/*` pattern are no longer used.
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else if ( this.redirect !== 0 && s === '/' ) {
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s = '*';
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}
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// https://github.com/gorhill/uBlock/issues/1047
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// Hostname-anchored makes no sense if matching all requests.
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@ -2332,9 +2329,8 @@ FilterParser.prototype.makeToken = function() {
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FilterParser.prototype.isJustOrigin = function() {
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return this.dataType === undefined &&
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this.redirect === false &&
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this.domainOpt !== '' &&
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/^(?:\*|https?:(?:\/\/)?)$/.test(this.f) &&
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/^(?:\*|http[s*]?:(?:\/\/)?)$/.test(this.f) &&
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this.domainOpt.indexOf('~') === -1;
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};
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@ -2654,6 +2650,23 @@ FilterContainer.prototype.compile = function(raw, writer) {
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return false;
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}
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// Redirect rule
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if ( parsed.redirect !== 0 ) {
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const result = this.compileRedirectRule(parsed, writer);
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if ( result === false ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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realm: 'message',
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type: 'error',
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text: `Invalid redirect rule in ${who}: ${raw}`
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});
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return false;
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}
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if ( parsed.redirect === 2 ) {
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return true;
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}
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}
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// Pure hostnames, use more efficient dictionary lookup
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// https://github.com/chrisaljoudi/uBlock/issues/665
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// Create a dict keyed on request type etc.
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@ -2694,25 +2707,24 @@ FilterContainer.prototype.compile = function(raw, writer) {
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} else {
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fdata = FilterGenericHnAnchored.compile(parsed);
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}
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} else if ( parsed.anchor === 0x2 && parsed.isJustOrigin() ) {
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const hostnames = parsed.domainOpt.split('|');
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const isHTTPS = parsed.f === 'https://' || parsed.f === 'http*://';
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const isHTTP = parsed.f === 'http://' || parsed.f === 'http*://';
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for ( const hn of hostnames ) {
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if ( isHTTPS ) {
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parsed.tokenHash = this.anyHTTPSTokenHash;
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this.compileToAtomicFilter(parsed, hn, writer);
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}
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if ( isHTTP ) {
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parsed.tokenHash = this.anyHTTPTokenHash;
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this.compileToAtomicFilter(parsed, hn, writer);
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}
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}
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return true;
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} else if ( parsed.wildcarded || parsed.tokenHash === parsed.noTokenHash ) {
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fdata = FilterGeneric.compile(parsed);
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} else if ( parsed.anchor === 0x2 ) {
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if ( parsed.isJustOrigin() ) {
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if ( parsed.f === 'https://' ) {
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parsed.tokenHash = this.anyHTTPSTokenHash;
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for ( const hn of parsed.domainOpt.split('|') ) {
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this.compileToAtomicFilter(parsed, hn, writer);
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}
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return true;
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}
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if ( parsed.f === 'http://' ) {
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parsed.tokenHash = this.anyHTTPTokenHash;
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for ( const hn of parsed.domainOpt.split('|') ) {
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this.compileToAtomicFilter(parsed, hn, writer);
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}
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return true;
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}
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}
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fdata = FilterPlainLeftAnchored.compile(parsed);
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} else if ( parsed.anchor === 0x1 ) {
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fdata = FilterPlainRightAnchored.compile(parsed);
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@ -2747,11 +2759,7 @@ FilterContainer.prototype.compileToAtomicFilter = function(
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// 0 = network filters
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// 1 = network filters: bad filters
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if ( parsed.badFilter ) {
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writer.select(1);
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} else {
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writer.select(0);
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}
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writer.select(parsed.badFilter ? 1 : 0);
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const descBits = parsed.action | parsed.important | parsed.party;
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let typeBits = parsed.types;
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@ -2777,17 +2785,19 @@ FilterContainer.prototype.compileToAtomicFilter = function(
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bitOffset += 1;
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typeBits >>>= 1;
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} while ( typeBits !== 0 );
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};
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// Only static filter with an explicit type can be redirected. If we reach
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// this point, it's because there is one or more explicit type.
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if ( parsed.redirect ) {
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const redirects = µb.redirectEngine.compileRuleFromStaticFilter(parsed.raw);
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if ( Array.isArray(redirects) ) {
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for ( const redirect of redirects ) {
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writer.push([ typeNameToTypeValue.redirect, redirect ]);
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}
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}
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/******************************************************************************/
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FilterContainer.prototype.compileRedirectRule = function(parsed, writer) {
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const redirects = µb.redirectEngine.compileRuleFromStaticFilter(parsed.raw);
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if ( Array.isArray(redirects) === false ) { return false; }
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writer.select(parsed.badFilter ? 1 : 0);
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const type = typeNameToTypeValue.redirect;
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for ( const redirect of redirects ) {
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writer.push([ type, redirect ]);
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}
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return true;
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};
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/******************************************************************************/
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