mirror of
https://github.com/gorhill/uBlock.git
synced 2024-09-15 07:22:28 +02:00
Add support for "specific-generic" cosmetic filters
A specific cosmetic filter of the following form...
*##.selector
... will be unconditionally injected into all web pages,
whereas a cosmetic filter of the form...
##.selector
... would be injected only when uBO's DOM surveyor finds
at least one matching element in a web page.
The new specific-generic form will also be disabled when a
web page is subject to a `generichide` exception filter,
since the filter is essentially a generic one -- the only
difference from the usual generic form is that the filter
is injected unconditionally instead of through the DOM
surveyor.
Specific-generic cosmetic filters will NOT be discarded
when checking the "Ignore generic cosmetic filters"
option in the "Filter lists" pane -- since the purpose
of this option is primarily to disable the DOM surveyor.
Specific-generic cosmetic filters should be used
parcimoniously and only when using a normal specific
filter is really impractical.
Related issue:
- https://github.com/uBlockOrigin/uBlock-issues/issues/803
This commit is contained in:
Raymond Hill
parent
32b9db67af
commit
3fab7bfdb4
@ -191,7 +191,7 @@ const FilterContainer = function() {
|
||||
this.rePlainSelectorEscaped = /^[#.](?:\\[0-9A-Fa-f]+ |\\.|\w|-)+/;
|
||||
this.rePlainSelectorEx = /^[^#.\[(]+([#.][\w-]+)|([#.][\w-]+)$/;
|
||||
this.reEscapeSequence = /\\([0-9A-Fa-f]+ |.)/g;
|
||||
this.reSimpleHighGeneric1 = /^[a-z]*\[[^[]+]$/;
|
||||
this.reSimpleHighGeneric = /^(?:[a-z]*\[[^\]]+\]|\S+)$/;
|
||||
this.reHighMedium = /^\[href\^="https?:\/\/([^"]{8})[^"]*"\]$/;
|
||||
|
||||
this.selectorCache = new Map();
|
||||
@ -274,8 +274,8 @@ FilterContainer.prototype.reset = function() {
|
||||
this.selectorCacheTimer = null;
|
||||
}
|
||||
|
||||
// generic filters
|
||||
this.hasGenericHide = false;
|
||||
// whether there is at least one surveyor-based filter
|
||||
this.needDOMSurveyor = false;
|
||||
|
||||
// hostname, entity-based filters
|
||||
this.specificFilters.clear();
|
||||
@ -301,13 +301,11 @@ FilterContainer.prototype.freeze = function() {
|
||||
this.duplicateBuster.clear();
|
||||
this.specificFilters.collectGarbage();
|
||||
|
||||
this.hasGenericHide =
|
||||
this.needDOMSurveyor =
|
||||
this.lowlyGeneric.id.simple.size !== 0 ||
|
||||
this.lowlyGeneric.id.complex.size !== 0 ||
|
||||
this.lowlyGeneric.cl.simple.size !== 0 ||
|
||||
this.lowlyGeneric.cl.complex.size !== 0 ||
|
||||
this.highlyGeneric.simple.dict.size !== 0 ||
|
||||
this.highlyGeneric.complex.dict.size !== 0;
|
||||
this.lowlyGeneric.cl.complex.size !== 0;
|
||||
|
||||
this.highlyGeneric.simple.str = Array.from(this.highlyGeneric.simple.dict).join(',\n');
|
||||
this.highlyGeneric.simple.mru.reset();
|
||||
@ -333,8 +331,8 @@ FilterContainer.prototype.keyFromSelector = function(selector) {
|
||||
matches = this.rePlainSelectorEscaped.exec(selector);
|
||||
if ( matches === null ) { return; }
|
||||
key = '';
|
||||
let escaped = matches[0],
|
||||
beg = 0;
|
||||
const escaped = matches[0];
|
||||
let beg = 0;
|
||||
this.reEscapeSequence.lastIndex = 0;
|
||||
for (;;) {
|
||||
matches = this.reEscapeSequence.exec(escaped);
|
||||
@ -402,22 +400,19 @@ FilterContainer.prototype.compileGenericHideSelector = function(
|
||||
const type = selector.charCodeAt(0);
|
||||
let key;
|
||||
|
||||
// Simple selector-based CSS rule: no need to test for whether the
|
||||
// selector is valid, the regex took care of this. Most generic selector
|
||||
// falls into that category:
|
||||
// - ###ad-bigbox
|
||||
// - ##.ads-bigbox
|
||||
if ( type === 0x23 /* '#' */ ) {
|
||||
key = this.keyFromSelector(selector);
|
||||
// Simple selector-based CSS rule: no need to test for whether the
|
||||
// selector is valid, the regex took care of this. Most generic
|
||||
// selector falls into that category.
|
||||
// - ###ad-bigbox
|
||||
if ( key === selector ) {
|
||||
writer.push([ 0, key.slice(1) ]);
|
||||
return;
|
||||
}
|
||||
} else if ( type === 0x2E /* '.' */ ) {
|
||||
key = this.keyFromSelector(selector);
|
||||
// Simple selector-based CSS rule: no need to test for whether the
|
||||
// selector is valid, the regex took care of this. Most generic
|
||||
// selector falls into that category.
|
||||
// - ##.ads-bigbox
|
||||
if ( key === selector ) {
|
||||
writer.push([ 2, key.slice(1) ]);
|
||||
return;
|
||||
@ -484,12 +479,7 @@ FilterContainer.prototype.compileGenericHideSelector = function(
|
||||
// For efficiency purpose, we will distinguish between simple and complex
|
||||
// selectors.
|
||||
|
||||
if ( this.reSimpleHighGeneric1.test(selector) ) {
|
||||
writer.push([ 4 /* simple */, selector ]);
|
||||
return;
|
||||
}
|
||||
|
||||
if ( selector.indexOf(' ') === -1 ) {
|
||||
if ( this.reSimpleHighGeneric.test(selector) ) {
|
||||
writer.push([ 4 /* simple */, selector ]);
|
||||
} else {
|
||||
writer.push([ 5 /* complex */, selector ]);
|
||||
@ -551,10 +541,13 @@ FilterContainer.prototype.compileSpecificSelector = function(
|
||||
|
||||
let kind = 0;
|
||||
if ( unhide === 1 ) {
|
||||
kind |= 0b01; // Exception
|
||||
kind |= 0b001; // Exception
|
||||
}
|
||||
if ( compiled.charCodeAt(0) === 0x7B /* '{' */ ) {
|
||||
kind |= 0b10; // Procedural
|
||||
kind |= 0b010; // Procedural
|
||||
}
|
||||
if ( hostname === '*' ) {
|
||||
kind |= 0b100; // Applies everywhere
|
||||
}
|
||||
|
||||
writer.push([ 8, hostname, kind, compiled ]);
|
||||
@ -637,8 +630,21 @@ FilterContainer.prototype.fromCompiledContent = function(reader, options) {
|
||||
|
||||
// hash, example.com, .promoted-tweet
|
||||
// hash, example.*, .promoted-tweet
|
||||
//
|
||||
// https://github.com/uBlockOrigin/uBlock-issues/issues/803
|
||||
// Handle specific filters meant to apply everywhere, i.e. selectors
|
||||
// not to be injected conditionally through the DOM surveyor.
|
||||
// hash, *, .promoted-tweet
|
||||
case 8:
|
||||
this.specificFilters.store(args[1], args[2], args[3]);
|
||||
if ( args[2] === 0b100 ) {
|
||||
if ( this.reSimpleHighGeneric.test(args[3]) )
|
||||
this.highlyGeneric.simple.dict.add(args[3]);
|
||||
else {
|
||||
this.highlyGeneric.complex.dict.add(args[3]);
|
||||
}
|
||||
break;
|
||||
}
|
||||
this.specificFilters.store(args[1], args[2] & 0b011, args[3]);
|
||||
break;
|
||||
|
||||
default:
|
||||
@ -666,11 +672,21 @@ FilterContainer.prototype.skipGenericCompiledContent = function(reader) {
|
||||
|
||||
switch ( args[0] ) {
|
||||
|
||||
// hash, example.com, .promoted-tweet
|
||||
// hash, example.*, .promoted-tweet
|
||||
// https://github.com/uBlockOrigin/uBlock-issues/issues/803
|
||||
// Handle specific filters meant to apply everywhere, i.e. selectors
|
||||
// not to be injected conditionally through the DOM surveyor.
|
||||
// hash, *, .promoted-tweet
|
||||
case 8:
|
||||
this.duplicateBuster.add(fingerprint);
|
||||
this.specificFilters.store(args[1], args[2], args[3]);
|
||||
if ( args[2] === 0b100 ) {
|
||||
if ( this.reSimpleHighGeneric.test(args[3]) )
|
||||
this.highlyGeneric.simple.dict.add(args[3]);
|
||||
else {
|
||||
this.highlyGeneric.complex.dict.add(args[3]);
|
||||
}
|
||||
break;
|
||||
}
|
||||
this.specificFilters.store(args[1], args[2] & 0b011, args[3]);
|
||||
break;
|
||||
|
||||
default:
|
||||
@ -699,7 +715,6 @@ FilterContainer.prototype.toSelfie = function() {
|
||||
acceptedCount: this.acceptedCount,
|
||||
discardedCount: this.discardedCount,
|
||||
specificFilters: this.specificFilters.toSelfie(),
|
||||
hasGenericHide: this.hasGenericHide,
|
||||
lowlyGenericSID: Array.from(this.lowlyGeneric.id.simple),
|
||||
lowlyGenericCID: Array.from(this.lowlyGeneric.id.complex),
|
||||
lowlyGenericSCL: Array.from(this.lowlyGeneric.cl.simple),
|
||||
@ -715,7 +730,6 @@ FilterContainer.prototype.fromSelfie = function(selfie) {
|
||||
this.acceptedCount = selfie.acceptedCount;
|
||||
this.discardedCount = selfie.discardedCount;
|
||||
this.specificFilters.fromSelfie(selfie.specificFilters);
|
||||
this.hasGenericHide = selfie.hasGenericHide;
|
||||
this.lowlyGeneric.id.simple = new Set(selfie.lowlyGenericSID);
|
||||
this.lowlyGeneric.id.complex = new Map(selfie.lowlyGenericCID);
|
||||
this.lowlyGeneric.cl.simple = new Set(selfie.lowlyGenericSCL);
|
||||
@ -724,6 +738,11 @@ FilterContainer.prototype.fromSelfie = function(selfie) {
|
||||
this.highlyGeneric.simple.str = selfie.highSimpleGenericHideArray.join(',\n');
|
||||
this.highlyGeneric.complex.dict = new Set(selfie.highComplexGenericHideArray);
|
||||
this.highlyGeneric.complex.str = selfie.highComplexGenericHideArray.join(',\n');
|
||||
this.needDOMSurveyor =
|
||||
selfie.lowlyGenericSID.length !== 0 ||
|
||||
selfie.lowlyGenericCID.length !== 0 ||
|
||||
selfie.lowlyGenericSCL.length !== 0 ||
|
||||
selfie.lowlyGenericCCL.length !== 0;
|
||||
this.frozen = true;
|
||||
};
|
||||
|
||||
@ -986,7 +1005,7 @@ FilterContainer.prototype.retrieveSpecificSelectors = function(
|
||||
highGenericHideComplex: '',
|
||||
injectedHideFilters: '',
|
||||
networkFilters: '',
|
||||
noDOMSurveying: this.hasGenericHide === false,
|
||||
noDOMSurveying: this.needDOMSurveyor === false,
|
||||
proceduralFilters: []
|
||||
};
|
||||
|
||||
|
||||
@ -128,22 +128,25 @@ const fromCosmeticFilter = function(details) {
|
||||
return a.length > b.length ? a : b;
|
||||
});
|
||||
|
||||
const regexFromLabels = (hn, suffix) =>
|
||||
const regexFromLabels = (prefix, hn, suffix) =>
|
||||
new RegExp(
|
||||
'^' +
|
||||
prefix +
|
||||
hn.split('.').reduce((acc, item) => `(${acc}\\.)?${item}`) +
|
||||
suffix
|
||||
);
|
||||
|
||||
const reHostname = regexFromLabels(hostname, '$');
|
||||
// https://github.com/uBlockOrigin/uBlock-issues/issues/803
|
||||
// Support looking up selectors of the form `*##...`
|
||||
const reHostname = regexFromLabels('^', hostname, '$');
|
||||
let reEntity;
|
||||
{
|
||||
const domain = details.domain;
|
||||
const pos = domain.indexOf('.');
|
||||
if ( pos !== -1 ) {
|
||||
reEntity = regexFromLabels(
|
||||
'^(',
|
||||
hostname.slice(0, pos + hostname.length - domain.length),
|
||||
'\\.\\*$'
|
||||
'\\.)?\\*$'
|
||||
);
|
||||
}
|
||||
}
|
||||
@ -218,8 +221,8 @@ const fromCosmeticFilter = function(details) {
|
||||
case 8:
|
||||
// HTML filtering
|
||||
case 64:
|
||||
if ( exception !== ((fargs[2] & 0b01) !== 0) ) { break; }
|
||||
isProcedural = (fargs[2] & 0b10) !== 0;
|
||||
if ( exception !== ((fargs[2] & 0b001) !== 0) ) { break; }
|
||||
isProcedural = (fargs[2] & 0b010) !== 0;
|
||||
if (
|
||||
isProcedural === false && fargs[3] !== selector ||
|
||||
isProcedural && JSON.parse(fargs[3]).raw !== selector
|
||||
@ -240,7 +243,7 @@ const fromCosmeticFilter = function(details) {
|
||||
break;
|
||||
// Scriptlet injection
|
||||
case 32:
|
||||
if ( exception !== ((fargs[2] & 1) !== 0) ) { break; }
|
||||
if ( exception !== ((fargs[2] & 0b001) !== 0) ) { break; }
|
||||
if ( fargs[3] !== selector ) { break; }
|
||||
if ( hostnameMatches(fargs[1]) ) {
|
||||
found = fargs[1] + prefix + selector;
|
||||
|
||||
@ -56,8 +56,8 @@
|
||||
const reParseRegexLiteral = /^\/(.+)\/([imu]+)?$/;
|
||||
const emptyArray = [];
|
||||
const parsed = {
|
||||
hostnames: [],
|
||||
exception: false,
|
||||
hostnames: [],
|
||||
suffix: ''
|
||||
};
|
||||
|
||||
@ -871,7 +871,7 @@
|
||||
}
|
||||
}
|
||||
|
||||
let c0 = suffix.charCodeAt(0);
|
||||
const c0 = suffix.charCodeAt(0);
|
||||
|
||||
// New shorter syntax for scriptlet injection engine.
|
||||
if ( c0 === 0x2B /* '+' */ && suffix.startsWith('+js') ) {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user