mirror of https://github.com/gorhill/uBlock.git
Add support for procedural :not to HTML filtering
Related issue: <https://github.com/gorhill/uBlock/issues/3683> Additionally, improve compile-time error reporting in the logger
This commit is contained in:
Raymond Hill
parent
01599b9653
commit
261ef8c510
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@ -361,25 +361,6 @@ let FilterContainer = function() {
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this.reEscapeSequence = /\\([0-9A-Fa-f]+ |.)/g;
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this.reSimpleHighGeneric1 = /^[a-z]*\[[^[]+]$/;
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this.reHighMedium = /^\[href\^="https?:\/\/([^"]{8})[^"]*"\]$/;
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this.reNeedHostname = new RegExp([
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'^',
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'(?:',
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[
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'.+?:has',
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'.+?:has-text',
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'.+?:if',
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'.+?:if-not',
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'.+?:matches-css(?:-before|-after)?',
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'.*?:xpath',
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'.+?:style',
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'.+?:-abp-contains', // ABP-specific for `:has-text`
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'.+?:-abp-has', // ABP-specific for `:if`
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'.+?:contains' // Adguard-specific for `:has-text`
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].join('|'),
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')',
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'\\(.+\\)',
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'$'
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].join(''));
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this.selectorCache = new Map();
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this.selectorCachePruneDelay = 10 * 60 * 1000; // 10 minutes
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@ -584,76 +565,65 @@ FilterContainer.prototype.compileGenericHideSelector = function(
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writer
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) {
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const selector = parsed.suffix;
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const type = selector.charCodeAt(0);
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let key;
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// For some selectors, it is mandatory to have a hostname or entity:
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// ##.foo:-abp-contains(...)
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// ##.foo:-abp-has(...)
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// ##.foo:contains(...)
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// ##.foo:has(...)
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// ##.foo:has-text(...)
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// ##.foo:if(...)
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// ##.foo:if-not(...)
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// ##.foo:matches-css(...)
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// ##.foo:matches-css-after(...)
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// ##.foo:matches-css-before(...)
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// ##:xpath(...)
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// ##.foo:style(...)
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if ( this.reNeedHostname.test(selector) ) {
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if ( type === 0x23 /* '#' */ ) {
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key = this.keyFromSelector(selector);
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// Simple selector-based CSS rule: no need to test for whether the
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// selector is valid, the regex took care of this. Most generic
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// selector falls into that category.
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// - ###ad-bigbox
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if ( key === selector ) {
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writer.push([ 0, key.slice(1) ]);
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return;
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}
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} else if ( type === 0x2E /* '.' */ ) {
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key = this.keyFromSelector(selector);
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// Simple selector-based CSS rule: no need to test for whether the
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// selector is valid, the regex took care of this. Most generic
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// selector falls into that category.
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// - ##.ads-bigbox
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if ( key === selector ) {
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writer.push([ 2, key.slice(1) ]);
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return;
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}
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}
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const compiled = µb.staticExtFilteringEngine.compileSelector(selector);
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// Invalid cosmetic filter, possible reasons:
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// - Bad syntax
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// - Procedural filters (can't be generic): the compiled version of
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// a procedural selector is NEVER equal to its raw version.
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if ( compiled === undefined || compiled !== selector ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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error: 'Cosmetic filtering – invalid generic filter: ##' + selector
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error: `Invalid generic cosmetic filter in ${who} : ##${selector}`
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});
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return;
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}
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let type = selector.charCodeAt(0);
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if ( type === 0x23 /* '#' */ ) {
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const key = this.keyFromSelector(selector);
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if ( key === undefined ) { return; }
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// Simple selector-based CSS rule: no need to test for whether the
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// selector is valid, the regex took care of this. Most generic
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// selector falls into that category.
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if ( key === selector ) {
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writer.push([ 0 /* lg */, key.slice(1) ]);
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return;
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}
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// Complex selector-based CSS rule.
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if ( µb.staticExtFilteringEngine.compileSelector(selector) !== undefined ) {
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writer.push([ 1 /* lg+ */, key.slice(1), selector ]);
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}
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// Complex selector-based CSS rule:
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// - ###tads + div + .c
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// - ##.rscontainer > .ellip
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if ( key !== undefined ) {
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writer.push([
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type === 0x23 /* '#' */ ? 1 : 3,
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key.slice(1),
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selector ]
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);
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return;
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}
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if ( type === 0x2E /* '.' */ ) {
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const key = this.keyFromSelector(selector);
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if ( key === undefined ) { return; }
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// Simple selector-based CSS rule: no need to test for whether the
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// selector is valid, the regex took care of this. Most generic
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// selector falls into that category.
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if ( key === selector ) {
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writer.push([ 2 /* lg */, key.slice(1) ]);
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return;
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}
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// Complex selector-based CSS rule.
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if ( µb.staticExtFilteringEngine.compileSelector(selector) !== undefined ) {
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writer.push([ 3 /* lg+ */, key.slice(1), selector ]);
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}
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return;
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}
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const compiled = µb.staticExtFilteringEngine.compileSelector(selector);
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if ( compiled === undefined ) { return; }
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// TODO: Detect and error on procedural cosmetic filters.
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// https://github.com/gorhill/uBlock/issues/909
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// Anything which contains a plain id/class selector can be classified
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// as a low generic cosmetic filter.
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const matches = this.rePlainSelectorEx.exec(selector);
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if ( matches !== null ) {
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const key = matches[1] || matches[2];
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type = key.charCodeAt(0);
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writer.push([
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type === 0x23 ? 1 : 3 /* lg+ */,
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key.charCodeAt(0) === 0x23 /* '#' */ ? 1 : 3,
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key.slice(1),
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selector
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]);
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@ -685,7 +655,13 @@ FilterContainer.prototype.compileGenericUnhideSelector = function(
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) {
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// Procedural cosmetic filters are acceptable as generic exception filters.
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let compiled = µb.staticExtFilteringEngine.compileSelector(parsed.suffix);
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if ( compiled === undefined ) { return; }
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if ( compiled === undefined ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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error: `Invalid cosmetic filter in ${who} : #@#${parsed.suffix}`
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});
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return;
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}
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// https://github.com/chrisaljoudi/uBlock/issues/497
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// All generic exception filters are put in the same bucket: they are
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@ -708,7 +684,13 @@ FilterContainer.prototype.compileSpecificSelector = function(
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}
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let compiled = µb.staticExtFilteringEngine.compileSelector(parsed.suffix);
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if ( compiled === undefined ) { return; }
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if ( compiled === undefined ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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error: `Invalid cosmetic filter in ${who} : ##${parsed.suffix}`
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});
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return;
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}
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let hash = µb.staticExtFilteringEngine.compileHostnameToHash(hostname);
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@ -24,16 +24,24 @@
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/******************************************************************************/
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µBlock.htmlFilteringEngine = (function() {
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const api = {};
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const µb = µBlock;
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const pselectors = new Map();
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const duplicates = new Set();
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const µb = µBlock,
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pselectors = new Map(),
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duplicates = new Set();
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let filterDB = new µb.staticExtFilteringEngine.HostnameBasedDB(),
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acceptedCount = 0,
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discardedCount = 0,
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docRegister;
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const api = {
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get acceptedCount() {
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return acceptedCount;
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},
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get discardedCount() {
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return discardedCount;
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}
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};
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const PSelectorHasTextTask = function(task) {
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let arg0 = task[1], arg1;
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if ( Array.isArray(task[1]) ) {
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@ -42,8 +50,8 @@
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this.needle = new RegExp(arg0, arg1);
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};
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PSelectorHasTextTask.prototype.exec = function(input) {
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let output = [];
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for ( let node of input ) {
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const output = [];
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for ( const node of input ) {
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if ( this.needle.test(node.textContent) ) {
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output.push(node);
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}
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@ -61,8 +69,8 @@
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}
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});
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PSelectorIfTask.prototype.exec = function(input) {
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let output = [];
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for ( let node of input ) {
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const output = [];
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for ( const node of input ) {
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if ( this.pselector.test(node) === this.target ) {
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output.push(node);
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}
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@ -81,10 +89,10 @@
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this.xpe = task[1];
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};
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PSelectorXpathTask.prototype.exec = function(input) {
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let output = [],
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xpe = docRegister.createExpression(this.xpe, null),
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xpr = null;
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for ( let node of input ) {
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const output = [];
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const xpe = docRegister.createExpression(this.xpe, null);
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let xpr = null;
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for ( const node of input ) {
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xpr = xpe.evaluate(
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node,
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XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
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@ -92,7 +100,7 @@
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);
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let j = xpr.snapshotLength;
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while ( j-- ) {
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node = xpr.snapshotItem(j);
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const node = xpr.snapshotItem(j);
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if ( node.nodeType === 1 ) {
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output.push(node);
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}
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@ -108,6 +116,7 @@
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[ ':has-text', PSelectorHasTextTask ],
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[ ':if', PSelectorIfTask ],
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[ ':if-not', PSelectorIfNotTask ],
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[ ':not', PSelectorIfNotTask ],
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[ ':xpath', PSelectorXpathTask ]
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]);
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}
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@ -115,13 +124,13 @@
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this.selector = o.selector;
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this.tasks = [];
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if ( !o.tasks ) { return; }
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for ( let task of o.tasks ) {
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let ctor = this.operatorToTaskMap.get(task[0]);
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for ( const task of o.tasks ) {
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const ctor = this.operatorToTaskMap.get(task[0]);
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if ( ctor === undefined ) {
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this.invalid = true;
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break;
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}
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let pselector = new ctor(task);
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const pselector = new ctor(task);
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if ( pselector instanceof PSelectorIfTask && pselector.invalid ) {
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this.invalid = true;
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break;
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@ -132,7 +141,7 @@
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PSelector.prototype.operatorToTaskMap = undefined;
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PSelector.prototype.invalid = false;
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PSelector.prototype.prime = function(input) {
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let root = input || docRegister;
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const root = input || docRegister;
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if ( this.selector !== '' ) {
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return root.querySelectorAll(this.selector);
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}
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@ -141,7 +150,7 @@
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PSelector.prototype.exec = function(input) {
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if ( this.invalid ) { return []; }
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let nodes = this.prime(input);
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for ( let task of this.tasks ) {
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for ( const task of this.tasks ) {
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if ( nodes.length === 0 ) { break; }
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nodes = task.exec(nodes);
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}
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@ -149,10 +158,12 @@
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};
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PSelector.prototype.test = function(input) {
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if ( this.invalid ) { return false; }
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let nodes = this.prime(input), AA = [ null ], aa;
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for ( let node of nodes ) {
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AA[0] = node; aa = AA;
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for ( var task of this.tasks ) {
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const nodes = this.prime(input);
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const AA = [ null ];
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for ( const node of nodes ) {
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AA[0] = node;
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let aa = AA;
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for ( const task of this.tasks ) {
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aa = task.exec(aa);
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if ( aa.length === 0 ) { break; }
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}
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@ -182,11 +193,11 @@
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pselector = new PSelector(JSON.parse(selector));
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pselectors.set(selector, pselector);
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}
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let nodes = pselector.exec(),
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i = nodes.length,
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const nodes = pselector.exec();
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let i = nodes.length,
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modified = false;
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while ( i-- ) {
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let node = nodes[i];
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const node = nodes[i];
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if ( node.parentNode !== null ) {
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node.parentNode.removeChild(node);
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modified = true;
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@ -199,11 +210,11 @@
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};
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const applyCSSSelector = function(details, selector) {
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let nodes = docRegister.querySelectorAll(selector),
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i = nodes.length,
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const nodes = docRegister.querySelectorAll(selector);
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let i = nodes.length,
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modified = false;
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while ( i-- ) {
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let node = nodes[i];
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const node = nodes[i];
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if ( node.parentNode !== null ) {
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node.parentNode.removeChild(node);
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modified = true;
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@ -228,16 +239,22 @@
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};
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api.compile = function(parsed, writer) {
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let selector = parsed.suffix.slice(1).trim(),
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compiled = µb.staticExtFilteringEngine.compileSelector(selector);
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if ( compiled === undefined ) { return; }
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const selector = parsed.suffix.slice(1).trim();
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const compiled = µb.staticExtFilteringEngine.compileSelector(selector);
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if ( compiled === undefined ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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error: `Invalid HTML filter in ${who} : ##${selector}`
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});
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return;
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}
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// 1002 = html filtering
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writer.select(1002);
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// TODO: Mind negated hostnames, they are currently discarded.
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for ( let hn of parsed.hostnames ) {
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for ( const hn of parsed.hostnames ) {
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if ( hn.charCodeAt(0) === 0x7E /* '~' */ ) { continue; }
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let hash = µb.staticExtFilteringEngine.compileHostnameToHash(hn);
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if ( parsed.exception ) {
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@ -261,13 +278,13 @@
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while ( reader.next() ) {
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acceptedCount += 1;
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let fingerprint = reader.fingerprint();
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const fingerprint = reader.fingerprint();
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if ( duplicates.has(fingerprint) ) {
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discardedCount += 1;
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continue;
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}
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duplicates.add(fingerprint);
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let args = reader.args();
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const args = reader.args();
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filterDB.add(args[1], {
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type: args[0],
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hostname: args[2],
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@ -335,7 +352,7 @@
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api.apply = function(doc, details) {
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docRegister = doc;
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let modified = false;
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for ( let entry of details.selectors ) {
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for ( const entry of details.selectors ) {
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if ( entry.type === 64 ) {
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if ( applyCSSSelector(details, entry.selector) ) {
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modified = true;
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@ -360,19 +377,6 @@
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pselectors.clear();
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};
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Object.defineProperties(api, {
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acceptedCount: {
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get: function() {
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return acceptedCount;
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}
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},
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discardedCount: {
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get: function() {
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return discardedCount;
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}
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}
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});
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return api;
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})();
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@ -668,10 +668,6 @@
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if ( (compiled = compileProceduralSelector(raw)) ) {
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return compiled;
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}
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µb.logger.writeOne({
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error: 'Cosmetic filtering – invalid filter: ' + raw
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});
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};
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return entryPoint;
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@ -2189,8 +2189,9 @@ FilterContainer.prototype.compile = function(raw, writer) {
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// Ignore filters with unsupported options
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if ( parsed.unsupported ) {
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const who = writer.properties.get('assetKey') || '?';
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µb.logger.writeOne({
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error: 'Network filtering – invalid filter: ' + raw
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error: `Invalid network filter in ${who}: ${raw}`
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});
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return false;
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}
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|
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@ -407,34 +407,39 @@
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µBlock.appendUserFilters = function(filters) {
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if ( filters.length === 0 ) { return; }
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var µb = this;
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var onSaved = function() {
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var compiledFilters = µb.compileFilters(filters),
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snfe = µb.staticNetFilteringEngine,
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cfe = µb.cosmeticFilteringEngine,
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acceptedCount = snfe.acceptedCount + cfe.acceptedCount,
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discardedCount = snfe.discardedCount + cfe.discardedCount;
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µb.applyCompiledFilters(compiledFilters, true);
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var entry = µb.availableFilterLists[µb.userFiltersPath],
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deltaEntryCount = snfe.acceptedCount + cfe.acceptedCount - acceptedCount,
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deltaEntryUsedCount = deltaEntryCount - (snfe.discardedCount + cfe.discardedCount - discardedCount);
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const onSaved = ( ) => {
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const compiledFilters = this.compileFilters(
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filters,
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{ assetKey: this.userFiltersPath }
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);
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const snfe = this.staticNetFilteringEngine;
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const cfe = this.cosmeticFilteringEngine;
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const acceptedCount = snfe.acceptedCount + cfe.acceptedCount;
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const discardedCount = snfe.discardedCount + cfe.discardedCount;
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this.applyCompiledFilters(compiledFilters, true);
|
||||
const entry = this.availableFilterLists[this.userFiltersPath];
|
||||
const deltaEntryCount =
|
||||
snfe.acceptedCount +
|
||||
cfe.acceptedCount - acceptedCount;
|
||||
const deltaEntryUsedCount =
|
||||
deltaEntryCount -
|
||||
(snfe.discardedCount + cfe.discardedCount - discardedCount);
|
||||
entry.entryCount += deltaEntryCount;
|
||||
entry.entryUsedCount += deltaEntryUsedCount;
|
||||
vAPI.storage.set({ 'availableFilterLists': µb.availableFilterLists });
|
||||
µb.staticNetFilteringEngine.freeze();
|
||||
µb.redirectEngine.freeze();
|
||||
µb.staticExtFilteringEngine.freeze();
|
||||
µb.selfieManager.destroy();
|
||||
vAPI.storage.set({ 'availableFilterLists': this.availableFilterLists });
|
||||
this.staticNetFilteringEngine.freeze();
|
||||
this.redirectEngine.freeze();
|
||||
this.staticExtFilteringEngine.freeze();
|
||||
this.selfieManager.destroy();
|
||||
};
|
||||
|
||||
var onLoaded = function(details) {
|
||||
const onLoaded = details => {
|
||||
if ( details.error ) { return; }
|
||||
// https://github.com/chrisaljoudi/uBlock/issues/976
|
||||
// If we reached this point, the filter quite probably needs to be
|
||||
// added for sure: do not try to be too smart, trying to avoid
|
||||
// duplicates at this point may lead to more issues.
|
||||
µb.saveUserFilters(details.content.trim() + '\n\n' + filters.trim(), onSaved);
|
||||
this.saveUserFilters(details.content.trim() + '\n\n' + filters.trim(), onSaved);
|
||||
};
|
||||
|
||||
this.loadUserFilters(onLoaded);
|
||||
|
|
@ -704,7 +709,10 @@
|
|||
|
||||
var onCompiledListLoaded2 = function(details) {
|
||||
if ( details.content === '' ) {
|
||||
details.content = µb.compileFilters(rawContent);
|
||||
details.content = µb.compileFilters(
|
||||
rawContent,
|
||||
{ assetKey: assetKey }
|
||||
);
|
||||
µb.assets.put(compiledPath, details.content);
|
||||
}
|
||||
rawContent = undefined;
|
||||
|
|
@ -786,19 +794,27 @@
|
|||
|
||||
/******************************************************************************/
|
||||
|
||||
µBlock.compileFilters = function(rawText) {
|
||||
µBlock.compileFilters = function(rawText, details) {
|
||||
let writer = new this.CompiledLineIO.Writer();
|
||||
|
||||
// Populate the writer with information potentially useful to the
|
||||
// client compilers.
|
||||
if ( details ) {
|
||||
if ( details.assetKey ) {
|
||||
writer.properties.set('assetKey', details.assetKey);
|
||||
}
|
||||
}
|
||||
|
||||
// Useful references:
|
||||
// https://adblockplus.org/en/filter-cheatsheet
|
||||
// https://adblockplus.org/en/filters
|
||||
let staticNetFilteringEngine = this.staticNetFilteringEngine,
|
||||
staticExtFilteringEngine = this.staticExtFilteringEngine,
|
||||
reIsWhitespaceChar = /\s/,
|
||||
reMaybeLocalIp = /^[\d:f]/,
|
||||
reIsLocalhostRedirect = /\s+(?:0\.0\.0\.0|broadcasthost|localhost|local|ip6-\w+)\b/,
|
||||
reLocalIp = /^(?:0\.0\.0\.0|127\.0\.0\.1|::1|fe80::1%lo0)/,
|
||||
lineIter = new this.LineIterator(this.processDirectives(rawText));
|
||||
const staticNetFilteringEngine = this.staticNetFilteringEngine;
|
||||
const staticExtFilteringEngine = this.staticExtFilteringEngine;
|
||||
const reIsWhitespaceChar = /\s/;
|
||||
const reMaybeLocalIp = /^[\d:f]/;
|
||||
const reIsLocalhostRedirect = /\s+(?:0\.0\.0\.0|broadcasthost|localhost|local|ip6-\w+)\b/;
|
||||
const reLocalIp = /^(?:0\.0\.0\.0|127\.0\.0\.1|::1|fe80::1%lo0)/;
|
||||
const lineIter = new this.LineIterator(this.processDirectives(rawText));
|
||||
|
||||
while ( lineIter.eot() === false ) {
|
||||
// rhill 2014-04-18: The trim is important here, as without it there
|
||||
|
|
@ -808,7 +824,7 @@
|
|||
if ( line.length === 0 ) { continue; }
|
||||
|
||||
// Strip comments
|
||||
let c = line.charAt(0);
|
||||
const c = line.charAt(0);
|
||||
if ( c === '!' || c === '[' ) { continue; }
|
||||
|
||||
// Parse or skip cosmetic filters
|
||||
|
|
@ -827,7 +843,7 @@
|
|||
// Don't remove:
|
||||
// ...#blah blah blah
|
||||
// because some ABP filters uses the `#` character (URL fragment)
|
||||
let pos = line.indexOf('#');
|
||||
const pos = line.indexOf('#');
|
||||
if ( pos !== -1 && reIsWhitespaceChar.test(line.charAt(pos - 1)) ) {
|
||||
line = line.slice(0, pos).trim();
|
||||
}
|
||||
|
|
@ -1259,7 +1275,10 @@
|
|||
);
|
||||
this.assets.put(
|
||||
'compiled/' + details.assetKey,
|
||||
this.compileFilters(details.content)
|
||||
this.compileFilters(
|
||||
details.content,
|
||||
{ assetKey: details.assetKey }
|
||||
)
|
||||
);
|
||||
}
|
||||
} else {
|
||||
|
|
|
|||
|
|
@ -234,8 +234,9 @@
|
|||
this.io = µBlock.CompiledLineIO;
|
||||
this.blockId = undefined;
|
||||
this.block = undefined;
|
||||
this.blocks = new Map();
|
||||
this.stringifier = this.io.serialize;
|
||||
this.blocks = new Map();
|
||||
this.properties = new Map();
|
||||
},
|
||||
|
||||
Reader: function(raw, blockId) {
|
||||
|
|
@ -246,6 +247,7 @@
|
|||
this.line = '';
|
||||
this.parser = this.io.unserialize;
|
||||
this.blocks = new Map();
|
||||
this.properties = new Map();
|
||||
let reBlockStart = new RegExp(
|
||||
'^' + this.io.blockStartPrefix + '(\\d+)\\n',
|
||||
'gm'
|
||||
|
|
|
|||
Loading…
Reference in New Issue