uBlock/assets/resources/scriptlets.js

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/*******************************************************************************
uBlock Origin - a browser extension to block requests.
Copyright (C) 2019-present Raymond Hill
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
The scriptlets below are meant to be injected only into a
web page context.
*/
// Externally added to the private namespace in which scriptlets execute.
/* global sriptletGlobals */
'use strict';
export const builtinScriptlets = [];
/*******************************************************************************
Helper functions
These are meant to be used as dependencies to injectable scriptlets.
*******************************************************************************/
builtinScriptlets.push({
name: 'safe-self.fn',
fn: safeSelf,
});
function safeSelf() {
if ( sriptletGlobals.has('safeSelf') ) {
return sriptletGlobals.get('safeSelf');
}
const safe = {
'RegExp': self.RegExp,
'RegExp_test': self.RegExp.prototype.test,
'RegExp_exec': self.RegExp.prototype.exec,
};
sriptletGlobals.set('safeSelf', safe);
return safe;
}
/******************************************************************************/
builtinScriptlets.push({
name: 'pattern-to-regex.fn',
fn: patternToRegex,
});
function patternToRegex(pattern) {
if ( pattern === '' ) {
return /^/;
}
if ( pattern.startsWith('/') && pattern.endsWith('/') ) {
return new RegExp(pattern.slice(1, -1));
}
return new RegExp(pattern.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'));
}
/******************************************************************************/
builtinScriptlets.push({
name: 'get-exception-token.fn',
fn: getExceptionToken,
});
function getExceptionToken() {
const token =
String.fromCharCode(Date.now() % 26 + 97) +
Math.floor(Math.random() * 982451653 + 982451653).toString(36);
const oe = self.onerror;
self.onerror = function(msg, ...args) {
if ( typeof msg === 'string' && msg.includes(token) ) { return true; }
if ( oe instanceof Function ) {
return oe.call(this, msg, ...args);
}
}.bind();
return token;
}
/*******************************************************************************
Injectable scriptlets
These are meant to be used in the MAIN (webpage) execution world.
*******************************************************************************/
builtinScriptlets.push({
name: 'abort-current-script.js',
aliases: [ 'acs.js', 'abort-current-inline-script.js', 'acis.js' ],
fn: abortCurrentScript,
dependencies: [
'pattern-to-regex.fn',
'get-exception-token.fn',
],
});
// Issues to mind before changing anything:
// https://github.com/uBlockOrigin/uBlock-issues/issues/2154
function abortCurrentScript(
target = '',
needle = '',
context = ''
) {
if ( typeof target !== 'string' ) { return; }
if ( target === '' ) { return; }
const reNeedle = patternToRegex(needle);
const reContext = patternToRegex(context);
const thisScript = document.currentScript;
const chain = target.split('.');
let owner = window;
let prop;
for (;;) {
prop = chain.shift();
if ( chain.length === 0 ) { break; }
owner = owner[prop];
if ( owner instanceof Object === false ) { return; }
}
let value;
let desc = Object.getOwnPropertyDescriptor(owner, prop);
if (
desc instanceof Object === false ||
desc.get instanceof Function === false
) {
value = owner[prop];
desc = undefined;
}
const exceptionToken = getExceptionToken();
const scriptTexts = new WeakMap();
const getScriptText = elem => {
let text = elem.textContent;
if ( text.trim() !== '' ) { return text; }
if ( scriptTexts.has(elem) ) { return scriptTexts.get(elem); }
const [ , mime, content ] =
/^data:([^,]*),(.+)$/.exec(elem.src.trim()) ||
[ '', '', '' ];
try {
switch ( true ) {
case mime.endsWith(';base64'):
text = self.atob(content);
break;
default:
text = self.decodeURIComponent(content);
break;
}
} catch(ex) {
}
scriptTexts.set(elem, text);
return text;
};
const validate = ( ) => {
const e = document.currentScript;
if ( e instanceof HTMLScriptElement === false ) { return; }
if ( e === thisScript ) { return; }
if ( reContext.test(e.src) === false ) { return; }
if ( reNeedle.test(getScriptText(e)) === false ) { return; }
throw new ReferenceError(exceptionToken);
};
Object.defineProperty(owner, prop, {
get: function() {
validate();
return desc instanceof Object
? desc.get.call(owner)
: value;
},
set: function(a) {
validate();
if ( desc instanceof Object ) {
desc.set.call(owner, a);
} else {
value = a;
}
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'abort-on-property-read.js',
aliases: [ 'aopr.js' ],
fn: abortOnPropertyRead,
dependencies: [
'get-exception-token.fn',
],
});
function abortOnPropertyRead(
chain = ''
) {
if ( typeof chain !== 'string' ) { return; }
if ( chain === '' ) { return; }
const exceptionToken = getExceptionToken();
const abort = function() {
throw new ReferenceError(exceptionToken);
};
const makeProxy = function(owner, chain) {
const pos = chain.indexOf('.');
if ( pos === -1 ) {
const desc = Object.getOwnPropertyDescriptor(owner, chain);
if ( !desc || desc.get !== abort ) {
Object.defineProperty(owner, chain, {
get: abort,
set: function(){}
});
}
return;
}
const prop = chain.slice(0, pos);
let v = owner[prop];
chain = chain.slice(pos + 1);
if ( v ) {
makeProxy(v, chain);
return;
}
const desc = Object.getOwnPropertyDescriptor(owner, prop);
if ( desc && desc.set !== undefined ) { return; }
Object.defineProperty(owner, prop, {
get: function() { return v; },
set: function(a) {
v = a;
if ( a instanceof Object ) {
makeProxy(a, chain);
}
}
});
};
const owner = window;
makeProxy(owner, chain);
}
/******************************************************************************/
builtinScriptlets.push({
name: 'abort-on-property-write.js',
aliases: [ 'aopw.js' ],
fn: abortOnPropertyWrite,
dependencies: [
'get-exception-token.fn',
],
});
function abortOnPropertyWrite(
prop = ''
) {
if ( typeof prop !== 'string' ) { return; }
if ( prop === '' ) { return; }
const exceptionToken = getExceptionToken();
let owner = window;
for (;;) {
const pos = prop.indexOf('.');
if ( pos === -1 ) { break; }
owner = owner[prop.slice(0, pos)];
if ( owner instanceof Object === false ) { return; }
prop = prop.slice(pos + 1);
}
delete owner[prop];
Object.defineProperty(owner, prop, {
set: function() {
throw new ReferenceError(exceptionToken);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'abort-on-stack-trace.js',
aliases: [ 'aost.js' ],
fn: abortOnStackTrace,
dependencies: [
'get-exception-token.fn',
'pattern-to-regex.fn',
'safe-self.fn',
],
});
// Status is currently experimental
function abortOnStackTrace(
chain = '',
needle = '',
logLevel = ''
) {
if ( typeof chain !== 'string' ) { return; }
const safe = safeSelf();
const reNeedle = patternToRegex(needle);
const exceptionToken = getExceptionToken();
const log = console.log.bind(console);
const ErrorCtor = self.Error;
const mustAbort = function(err) {
let docURL = self.location.href;
const pos = docURL.indexOf('#');
if ( pos !== -1 ) {
docURL = docURL.slice(0, pos);
}
// Normalize stack trace
const reLine = /(.*?@)?(\S+)(:\d+):\d+\)?$/;
const lines = [];
for ( let line of err.stack.split(/[\n\r]+/) ) {
if ( line.includes(exceptionToken) ) { continue; }
line = line.trim();
let match = safe.RegExp_exec.call(reLine, line);
if ( match === null ) { continue; }
let url = match[2];
if ( url.startsWith('(') ) { url = url.slice(1); }
if ( url === docURL ) {
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url = 'inlineScript';
} else if ( url.startsWith('<anonymous>') ) {
url = 'injectedScript';
}
let fn = match[1] !== undefined
? match[1].slice(0, -1)
: line.slice(0, match.index).trim();
if ( fn.startsWith('at') ) { fn = fn.slice(2).trim(); }
let rowcol = match[3];
lines.push(' ' + `${fn} ${url}${rowcol}:1`.trim());
}
lines[0] = `stackDepth:${lines.length-1}`;
const stack = lines.join('\t');
const r = safe.RegExp_test.call(reNeedle, stack);
if (
logLevel === '1' ||
logLevel === '2' && r ||
logLevel === '3' && !r
) {
log(stack.replace(/\t/g, '\n'));
}
return r;
};
const makeProxy = function(owner, chain) {
const pos = chain.indexOf('.');
if ( pos === -1 ) {
let v = owner[chain];
Object.defineProperty(owner, chain, {
get: function() {
if ( mustAbort(new ErrorCtor(exceptionToken)) ) {
throw new ReferenceError(exceptionToken);
}
return v;
},
set: function(a) {
if ( mustAbort(new ErrorCtor(exceptionToken)) ) {
throw new ReferenceError(exceptionToken);
}
v = a;
},
});
return;
}
const prop = chain.slice(0, pos);
let v = owner[prop];
chain = chain.slice(pos + 1);
if ( v ) {
makeProxy(v, chain);
return;
}
const desc = Object.getOwnPropertyDescriptor(owner, prop);
if ( desc && desc.set !== undefined ) { return; }
Object.defineProperty(owner, prop, {
get: function() { return v; },
set: function(a) {
v = a;
if ( a instanceof Object ) {
makeProxy(a, chain);
}
}
});
};
const owner = window;
makeProxy(owner, chain);
}
/******************************************************************************/
builtinScriptlets.push({
name: 'addEventListener-defuser.js',
aliases: [ 'aeld.js' ],
fn: addEventListenerDefuser,
dependencies: [
'pattern-to-regex.fn',
'safe-self.fn',
],
});
// https://github.com/uBlockOrigin/uAssets/issues/9123#issuecomment-848255120
function addEventListenerDefuser(
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
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arg1 = '',
arg2 = ''
) {
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
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const details = typeof arg1 !== 'object'
? { type: arg1, pattern: arg2 }
: arg1;
let { type = '', pattern = '' } = details;
if ( typeof type !== 'string' ) { return; }
if ( typeof pattern !== 'string' ) { return; }
const safe = safeSelf();
const reType = patternToRegex(type);
const rePattern = patternToRegex(pattern);
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
2023-03-25 10:35:56 -06:00
const logfn = console.log.bind(console);
const proto = self.EventTarget.prototype;
proto.addEventListener = new Proxy(proto.addEventListener, {
apply: function(target, thisArg, args) {
let type, handler;
try {
type = String(args[0]);
handler = String(args[1]);
} catch(ex) {
}
const matchesType = safe.RegExp_test.call(reType, type);
const matchesHandler = safe.RegExp_test.call(rePattern, handler);
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
2023-03-25 10:35:56 -06:00
const matchesEither = matchesType || matchesHandler;
const matchesBoth = matchesType && matchesHandler;
if (
details.log === 1 && matchesBoth ||
details.log === 2 && matchesEither ||
details.log === 3
) {
logfn(`uBO: addEventListener('${type}', ${handler})`);
}
if (
details.debug === 1 && matchesBoth ||
details.debug === 2 && matchesEither
) {
debugger; // jshint ignore:line
}
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
2023-03-25 10:35:56 -06:00
if ( matchesBoth ) { return; }
return Reflect.apply(target, thisArg, args);
}
Remove addEventListenerLogger, expand addEventListenerDefuser The scriptlet addEventListenerLogger has been removed. The logging of addEventListener() calls can now be done with the addEventListenerDefuser scriptlet, which now supports the following named arguments: "type": the event type to match. Default to '', i.e. match-all. "pattern": the pattern to match against the handler argument Default to '', i.e. match-all. "log": an integer value telling when to log: - 1: log only when both type and pattern matches, i.e. when a call to addEventListener() is defused - 2: log when either the type or pattern matches - 3: log all calls to addEventListener() "debug": an integer value telling when to break into the debugger, useful to inspect the debugger's call stack. - 1: break into the debugger when both type and pattern match, so effectively when defusing is taking place. - 2: break into the debugger when either type or pattern matches. The usage of named arguments is optional, positional arguments are still supported as documented. Named arguments is required to use "log" and/or "debug" arguments. Obviously, do not use "log" or "debug" in any filter list, these are investigative tools for filter list authors. Examples of usage using named arguments: wikipedia.org##+js(aeld, { "type": "/mouse/", "pattern": "/.^/", "log": 2 }) Above filter will log calls to addEventListener() which have the pattern "mouse" in the event type (so "mouseover", "mouseout", etc.) without defusing any of them (because pattern can't match anything). wikipedia.org##+js(aeld, { "type": "/.^/", "log": 2 }) Above filter will log all calls without defusing any of them (because type can't match anything) wikipedia.org##+js(aeld, { "log": 1 }) Above filter will log and defuse all calls to addEventListener().
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});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'json-prune.js',
fn: jsonPrune,
dependencies: [
'pattern-to-regex.fn',
],
});
// When no "prune paths" argument is provided, the scriptlet is
// used for logging purpose and the "needle paths" argument is
// used to filter logging output.
//
// https://github.com/uBlockOrigin/uBlock-issues/issues/1545
// - Add support for "remove everything if needle matches" case
function jsonPrune(
rawPrunePaths = '',
rawNeedlePaths = ''
) {
if ( typeof rawPrunePaths !== 'string' ) { return; }
const prunePaths = rawPrunePaths !== ''
? rawPrunePaths.split(/ +/)
: [];
let needlePaths;
let log, reLogNeedle;
if ( prunePaths.length !== 0 ) {
needlePaths = prunePaths.length !== 0 && rawNeedlePaths !== ''
? rawNeedlePaths.split(/ +/)
: [];
} else {
log = console.log.bind(console);
reLogNeedle = patternToRegex(rawNeedlePaths);
}
const findOwner = function(root, path, prune = false) {
let owner = root;
let chain = path;
for (;;) {
if ( typeof owner !== 'object' || owner === null ) {
return false;
}
const pos = chain.indexOf('.');
if ( pos === -1 ) {
if ( prune === false ) {
return owner.hasOwnProperty(chain);
}
if ( chain === '*' ) {
for ( const key in owner ) {
if ( owner.hasOwnProperty(key) === false ) { continue; }
delete owner[key];
}
} else if ( owner.hasOwnProperty(chain) ) {
delete owner[chain];
}
return true;
}
const prop = chain.slice(0, pos);
if (
prop === '[]' && Array.isArray(owner) ||
prop === '*' && owner instanceof Object
) {
const next = chain.slice(pos + 1);
let found = false;
for ( const key of Object.keys(owner) ) {
found = findOwner(owner[key], next, prune) || found;
}
return found;
}
if ( owner.hasOwnProperty(prop) === false ) { return false; }
owner = owner[prop];
chain = chain.slice(pos + 1);
}
};
const mustProcess = function(root) {
for ( const needlePath of needlePaths ) {
if ( findOwner(root, needlePath) === false ) {
return false;
}
}
return true;
};
const pruner = function(o) {
if ( log !== undefined ) {
const json = JSON.stringify(o, null, 2);
if ( reLogNeedle.test(json) ) {
log('uBO:', location.hostname, json);
}
return o;
}
if ( mustProcess(o) === false ) { return o; }
for ( const path of prunePaths ) {
findOwner(o, path, true);
}
return o;
};
JSON.parse = new Proxy(JSON.parse, {
apply: function() {
return pruner(Reflect.apply(...arguments));
},
});
Response.prototype.json = new Proxy(Response.prototype.json, {
apply: function() {
return Reflect.apply(...arguments).then(o => pruner(o));
},
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'nano-setInterval-booster.js',
aliases: [ 'nano-sib.js' ],
fn: nanoSetIntervalBooster,
dependencies: [
'pattern-to-regex.fn',
],
});
// Imported from:
// https://github.com/NanoAdblocker/NanoFilters/blob/1f3be7211bb0809c5106996f52564bf10c4525f7/NanoFiltersSource/NanoResources.txt#L126
//
// Speed up or down setInterval, 3 optional arguments.
// The payload matcher, a string literal or a JavaScript RegExp, defaults
// to match all.
// delayMatcher
// The delay matcher, an integer, defaults to 1000.
// Use `*` to match any delay.
// boostRatio - The delay multiplier when there is a match, 0.5 speeds up by
// 2 times and 2 slows down by 2 times, defaults to 0.05 or speed up
// 20 times. Speed up and down both cap at 50 times.
function nanoSetIntervalBooster(
needleArg = '',
delayArg = '',
boostArg = ''
) {
if ( typeof needleArg !== 'string' ) { return; }
const reNeedle = patternToRegex(needleArg);
let delay = delayArg !== '*' ? parseInt(delayArg, 10) : -1;
if ( isNaN(delay) || isFinite(delay) === false ) { delay = 1000; }
let boost = parseFloat(boostArg);
boost = isNaN(boost) === false && isFinite(boost)
? Math.min(Math.max(boost, 0.02), 50)
: 0.05;
self.setInterval = new Proxy(self.setInterval, {
apply: function(target, thisArg, args) {
const [ a, b ] = args;
if (
(delay === -1 || b === delay) &&
reNeedle.test(a.toString())
) {
args[1] = b * boost;
}
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'nano-setTimeout-booster.js',
aliases: [ 'nano-stb.js' ],
fn: nanoSetTimeoutBooster,
dependencies: [
'pattern-to-regex.fn',
],
});
// Imported from:
// https://github.com/NanoAdblocker/NanoFilters/blob/1f3be7211bb0809c5106996f52564bf10c4525f7/NanoFiltersSource/NanoResources.txt#L82
//
// Speed up or down setTimeout, 3 optional arguments.
// funcMatcher
// The payload matcher, a string literal or a JavaScript RegExp, defaults
// to match all.
// delayMatcher
// The delay matcher, an integer, defaults to 1000.
// Use `*` to match any delay.
// boostRatio - The delay multiplier when there is a match, 0.5 speeds up by
// 2 times and 2 slows down by 2 times, defaults to 0.05 or speed up
// 20 times. Speed up and down both cap at 50 times.
function nanoSetTimeoutBooster(
needleArg = '',
delayArg = '',
boostArg = ''
) {
if ( typeof needleArg !== 'string' ) { return; }
const reNeedle = patternToRegex(needleArg);
let delay = delayArg !== '*' ? parseInt(delayArg, 10) : -1;
if ( isNaN(delay) || isFinite(delay) === false ) { delay = 1000; }
let boost = parseFloat(boostArg);
boost = isNaN(boost) === false && isFinite(boost)
? Math.min(Math.max(boost, 0.02), 50)
: 0.05;
self.setTimeout = new Proxy(self.setTimeout, {
apply: function(target, thisArg, args) {
const [ a, b ] = args;
if (
(delay === -1 || b === delay) &&
reNeedle.test(a.toString())
) {
args[1] = b * boost;
}
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'noeval-if.js',
fn: noEvalIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noEvalIf(
needle = ''
) {
if ( typeof needle !== 'string' ) { return; }
const reNeedle = patternToRegex(needle);
window.eval = new Proxy(window.eval, { // jshint ignore: line
apply: function(target, thisArg, args) {
const a = args[0];
if ( reNeedle.test(a.toString()) ) { return; }
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'no-fetch-if.js',
fn: noFetchIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noFetchIf(
arg1 = '',
) {
if ( typeof arg1 !== 'string' ) { return; }
const needles = [];
for ( const condition of arg1.split(/\s+/) ) {
if ( condition === '' ) { continue; }
const pos = condition.indexOf(':');
let key, value;
if ( pos !== -1 ) {
key = condition.slice(0, pos);
value = condition.slice(pos + 1);
} else {
key = 'url';
value = condition;
}
needles.push({ key, re: patternToRegex(value) });
}
const log = needles.length === 0 ? console.log.bind(console) : undefined;
self.fetch = new Proxy(self.fetch, {
apply: function(target, thisArg, args) {
let proceed = true;
try {
let details;
if ( args[0] instanceof self.Request ) {
details = args[0];
} else {
details = Object.assign({ url: args[0] }, args[1]);
}
const props = new Map();
for ( const prop in details ) {
let v = details[prop];
if ( typeof v !== 'string' ) {
try { v = JSON.stringify(v); }
catch(ex) { }
}
if ( typeof v !== 'string' ) { continue; }
props.set(prop, v);
}
if ( log !== undefined ) {
const out = Array.from(props)
.map(a => `${a[0]}:${a[1]}`)
.join(' ');
log(`uBO: fetch(${out})`);
}
proceed = needles.length === 0;
for ( const { key, re } of needles ) {
if (
props.has(key) === false ||
re.test(props.get(key)) === false
) {
proceed = true;
break;
}
}
} catch(ex) {
}
return proceed
? Reflect.apply(target, thisArg, args)
: Promise.resolve(new Response());
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'refresh-defuser.js',
fn: refreshDefuser,
});
// https://www.reddit.com/r/uBlockOrigin/comments/q0frv0/while_reading_a_sports_article_i_was_redirected/hf7wo9v/
function refreshDefuser(
arg1 = ''
) {
if ( typeof arg1 !== 'string' ) { return; }
const defuse = ( ) => {
const meta = document.querySelector('meta[http-equiv="refresh" i][content]');
if ( meta === null ) { return; }
const s = arg1 === ''
? meta.getAttribute('content')
: arg1;
const ms = Math.max(parseFloat(s) || 0, 0) * 1000;
setTimeout(( ) => { window.stop(); }, ms);
};
if ( document.readyState === 'loading' ) {
document.addEventListener('DOMContentLoaded', defuse, { once: true });
} else {
defuse();
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'remove-attr.js',
aliases: [ 'ra.js' ],
fn: removeAttr,
});
function removeAttr(
token = '',
selector = '',
behavior = ''
) {
if ( typeof token !== 'string' ) { return; }
if ( token === '' ) { return; }
const tokens = token.split(/\s*\|\s*/);
if ( selector === '' ) {
selector = `[${tokens.join('],[')}]`;
}
let timer;
const rmattr = ( ) => {
timer = undefined;
try {
const nodes = document.querySelectorAll(selector);
for ( const node of nodes ) {
for ( const attr of tokens ) {
node.removeAttribute(attr);
}
}
} catch(ex) {
}
};
const mutationHandler = mutations => {
if ( timer !== undefined ) { return; }
let skip = true;
for ( let i = 0; i < mutations.length && skip; i++ ) {
const { type, addedNodes, removedNodes } = mutations[i];
if ( type === 'attributes' ) { skip = false; }
for ( let j = 0; j < addedNodes.length && skip; j++ ) {
if ( addedNodes[j].nodeType === 1 ) { skip = false; break; }
}
for ( let j = 0; j < removedNodes.length && skip; j++ ) {
if ( removedNodes[j].nodeType === 1 ) { skip = false; break; }
}
}
if ( skip ) { return; }
timer = self.requestIdleCallback(rmattr, { timeout: 17 });
};
const start = ( ) => {
rmattr();
if ( /\bstay\b/.test(behavior) === false ) { return; }
const observer = new MutationObserver(mutationHandler);
observer.observe(document, {
attributes: true,
attributeFilter: tokens,
childList: true,
subtree: true,
});
};
if ( document.readyState !== 'complete' && /\bcomplete\b/.test(behavior) ) {
self.addEventListener('load', start, { once: true });
} else if ( document.readyState !== 'loading' || /\basap\b/.test(behavior) ) {
start();
} else {
self.addEventListener('DOMContentLoaded', start, { once: true });
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'remove-class.js',
aliases: [ 'rc.js' ],
fn: removeClass,
});
function removeClass(
token = '',
selector = '',
behavior = ''
) {
if ( typeof token !== 'string' ) { return; }
if ( token === '' ) { return; }
const tokens = token.split(/\s*\|\s*/);
if ( selector === '' ) {
selector = '.' + tokens.map(a => CSS.escape(a)).join(',.');
}
let timer;
const rmclass = function() {
timer = undefined;
try {
const nodes = document.querySelectorAll(selector);
for ( const node of nodes ) {
node.classList.remove(...tokens);
}
} catch(ex) {
}
};
const mutationHandler = mutations => {
if ( timer !== undefined ) { return; }
let skip = true;
for ( let i = 0; i < mutations.length && skip; i++ ) {
const { type, addedNodes, removedNodes } = mutations[i];
if ( type === 'attributes' ) { skip = false; }
for ( let j = 0; j < addedNodes.length && skip; j++ ) {
if ( addedNodes[j].nodeType === 1 ) { skip = false; break; }
}
for ( let j = 0; j < removedNodes.length && skip; j++ ) {
if ( removedNodes[j].nodeType === 1 ) { skip = false; break; }
}
}
if ( skip ) { return; }
timer = self.requestIdleCallback(rmclass, { timeout: 67 });
};
const start = ( ) => {
rmclass();
if ( /\bstay\b/.test(behavior) === false ) { return; }
const observer = new MutationObserver(mutationHandler);
observer.observe(document, {
attributes: true,
attributeFilter: [ 'class' ],
childList: true,
subtree: true,
});
};
if ( document.readyState !== 'complete' && /\bcomplete\b/.test(behavior) ) {
self.addEventListener('load', start, { once: true });
} else if ( document.readyState === 'loading' ) {
self.addEventListener('DOMContentLoaded', start, { once: true });
} else {
start();
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'no-requestAnimationFrame-if.js',
aliases: [ 'norafif.js' ],
fn: noRequestAnimationFrameIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noRequestAnimationFrameIf(
needle = ''
) {
if ( typeof needle !== 'string' ) { return; }
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
const log = needleNot === false && needle === '' ? console.log : undefined;
const reNeedle = patternToRegex(needle);
window.requestAnimationFrame = new Proxy(window.requestAnimationFrame, {
apply: function(target, thisArg, args) {
const a = String(args[0]);
let defuse = false;
if ( log !== undefined ) {
log('uBO: requestAnimationFrame("%s")', a);
} else {
defuse = reNeedle.test(a) !== needleNot;
}
if ( defuse ) {
args[0] = function(){};
}
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'set-constant.js',
aliases: [ 'set.js' ],
fn: setConstant,
});
function setConstant(
chain = '',
cValue = ''
) {
if ( typeof chain !== 'string' ) { return; }
if ( chain === '' ) { return; }
2023-03-14 06:21:22 -06:00
const trappedProp = (( ) => {
const pos = chain.lastIndexOf('.');
if ( pos === -1 ) { return chain; }
return chain.slice(pos+1);
})();
if ( trappedProp === '' ) { return; }
const thisScript = document.currentScript;
2023-03-14 06:21:22 -06:00
const objectDefineProperty = Object.defineProperty.bind(Object);
const cloakFunc = fn => {
objectDefineProperty(fn, 'name', { value: trappedProp });
const proxy = new Proxy(fn, {
defineProperty(target, prop) {
if ( prop !== 'toString' ) {
return Reflect.deleteProperty(...arguments);
}
return true;
},
deleteProperty(target, prop) {
if ( prop !== 'toString' ) {
return Reflect.deleteProperty(...arguments);
}
return true;
},
get(target, prop) {
if ( prop === 'toString' ) {
return function() {
return `function ${trappedProp}() { [native code] }`;
}.bind(null);
}
return Reflect.get(...arguments);
},
});
return proxy;
};
if ( cValue === 'undefined' ) {
cValue = undefined;
} else if ( cValue === 'false' ) {
cValue = false;
} else if ( cValue === 'true' ) {
cValue = true;
} else if ( cValue === 'null' ) {
cValue = null;
} else if ( cValue === "''" ) {
cValue = '';
} else if ( cValue === '[]' ) {
cValue = [];
} else if ( cValue === '{}' ) {
cValue = {};
} else if ( cValue === 'noopFunc' ) {
2023-03-14 06:21:22 -06:00
cValue = cloakFunc(function(){});
} else if ( cValue === 'trueFunc' ) {
2023-03-14 06:21:22 -06:00
cValue = cloakFunc(function(){ return true; });
} else if ( cValue === 'falseFunc' ) {
2023-03-14 06:21:22 -06:00
cValue = cloakFunc(function(){ return false; });
} else if ( /^\d+$/.test(cValue) ) {
cValue = parseFloat(cValue);
if ( isNaN(cValue) ) { return; }
if ( Math.abs(cValue) > 0x7FFF ) { return; }
} else {
return;
}
let aborted = false;
const mustAbort = function(v) {
if ( aborted ) { return true; }
aborted =
(v !== undefined && v !== null) &&
(cValue !== undefined && cValue !== null) &&
(typeof v !== typeof cValue);
return aborted;
};
// https://github.com/uBlockOrigin/uBlock-issues/issues/156
// Support multiple trappers for the same property.
const trapProp = function(owner, prop, configurable, handler) {
if ( handler.init(owner[prop]) === false ) { return; }
const odesc = Object.getOwnPropertyDescriptor(owner, prop);
let prevGetter, prevSetter;
if ( odesc instanceof Object ) {
owner[prop] = cValue;
if ( odesc.get instanceof Function ) {
prevGetter = odesc.get;
}
if ( odesc.set instanceof Function ) {
prevSetter = odesc.set;
}
}
try {
2023-03-14 06:21:22 -06:00
objectDefineProperty(owner, prop, {
configurable,
get() {
if ( prevGetter !== undefined ) {
prevGetter();
}
return handler.getter(); // cValue
},
set(a) {
if ( prevSetter !== undefined ) {
prevSetter(a);
}
handler.setter(a);
}
});
} catch(ex) {
}
};
const trapChain = function(owner, chain) {
const pos = chain.indexOf('.');
if ( pos === -1 ) {
trapProp(owner, chain, false, {
v: undefined,
init: function(v) {
if ( mustAbort(v) ) { return false; }
this.v = v;
return true;
},
getter: function() {
return document.currentScript === thisScript
? this.v
: cValue;
},
setter: function(a) {
if ( mustAbort(a) === false ) { return; }
cValue = a;
}
});
return;
}
const prop = chain.slice(0, pos);
const v = owner[prop];
chain = chain.slice(pos + 1);
if ( v instanceof Object || typeof v === 'object' && v !== null ) {
trapChain(v, chain);
return;
}
trapProp(owner, prop, true, {
v: undefined,
init: function(v) {
this.v = v;
return true;
},
getter: function() {
return this.v;
},
setter: function(a) {
this.v = a;
if ( a instanceof Object ) {
trapChain(a, chain);
}
}
});
};
trapChain(window, chain);
}
/******************************************************************************/
builtinScriptlets.push({
name: 'no-setInterval-if.js',
aliases: [ 'nosiif.js' ],
fn: noSetIntervalIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noSetIntervalIf(
needle = '',
delay = ''
) {
if ( typeof needle !== 'string' ) { return; }
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
if ( delay === '' ) { delay = undefined; }
let delayNot = false;
if ( delay !== undefined ) {
delayNot = delay.charAt(0) === '!';
if ( delayNot ) { delay = delay.slice(1); }
delay = parseInt(delay, 10);
}
const log = needleNot === false && needle === '' && delay === undefined
? console.log
: undefined;
const reNeedle = patternToRegex(needle);
window.setInterval = new Proxy(window.setInterval, {
apply: function(target, thisArg, args) {
const a = String(args[0]);
const b = args[1];
if ( log !== undefined ) {
log('uBO: setInterval("%s", %s)', a, b);
} else {
let defuse;
if ( needle !== '' ) {
defuse = reNeedle.test(a) !== needleNot;
}
if ( defuse !== false && delay !== undefined ) {
defuse = (b === delay || isNaN(b) && isNaN(delay) ) !== delayNot;
}
if ( defuse ) {
args[0] = function(){};
}
}
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'no-setTimeout-if.js',
aliases: [ 'nostif.js', 'setTimeout-defuser.js' ],
fn: noSetTimeoutIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noSetTimeoutIf(
needle = '',
delay = ''
) {
if ( typeof needle !== 'string' ) { return; }
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
if ( delay === '' ) { delay = undefined; }
let delayNot = false;
if ( delay !== undefined ) {
delayNot = delay.charAt(0) === '!';
if ( delayNot ) { delay = delay.slice(1); }
delay = parseInt(delay, 10);
}
const log = needleNot === false && needle === '' && delay === undefined
? console.log
: undefined;
const reNeedle = patternToRegex(needle);
window.setTimeout = new Proxy(window.setTimeout, {
apply: function(target, thisArg, args) {
const a = String(args[0]);
const b = args[1];
if ( log !== undefined ) {
log('uBO: setTimeout("%s", %s)', a, b);
} else {
let defuse;
if ( needle !== '' ) {
defuse = reNeedle.test(a) !== needleNot;
}
if ( defuse !== false && delay !== undefined ) {
defuse = (b === delay || isNaN(b) && isNaN(delay) ) !== delayNot;
}
if ( defuse ) {
args[0] = function(){};
}
}
return target.apply(thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'webrtc-if.js',
fn: webrtcIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function webrtcIf(
good = ''
) {
if ( typeof good !== 'string' ) { return; }
const reGood = patternToRegex(good);
const rtcName = window.RTCPeerConnection
? 'RTCPeerConnection'
: (window.webkitRTCPeerConnection ? 'webkitRTCPeerConnection' : '');
if ( rtcName === '' ) { return; }
const log = console.log.bind(console);
const neuteredPeerConnections = new WeakSet();
const isGoodConfig = function(instance, config) {
if ( neuteredPeerConnections.has(instance) ) { return false; }
if ( config instanceof Object === false ) { return true; }
if ( Array.isArray(config.iceServers) === false ) { return true; }
for ( const server of config.iceServers ) {
const urls = typeof server.urls === 'string'
? [ server.urls ]
: server.urls;
if ( Array.isArray(urls) ) {
for ( const url of urls ) {
if ( reGood.test(url) ) { return true; }
}
}
if ( typeof server.username === 'string' ) {
if ( reGood.test(server.username) ) { return true; }
}
if ( typeof server.credential === 'string' ) {
if ( reGood.test(server.credential) ) { return true; }
}
}
neuteredPeerConnections.add(instance);
return false;
};
const peerConnectionCtor = window[rtcName];
const peerConnectionProto = peerConnectionCtor.prototype;
peerConnectionProto.createDataChannel =
new Proxy(peerConnectionProto.createDataChannel, {
apply: function(target, thisArg, args) {
if ( isGoodConfig(target, args[1]) === false ) {
log('uBO:', args[1]);
return Reflect.apply(target, thisArg, args.slice(0, 1));
}
return Reflect.apply(target, thisArg, args);
},
});
window[rtcName] =
new Proxy(peerConnectionCtor, {
construct: function(target, args) {
if ( isGoodConfig(target, args[0]) === false ) {
log('uBO:', args[0]);
return Reflect.construct(target);
}
return Reflect.construct(target, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'no-xhr-if.js',
fn: noXhrIf,
dependencies: [
'pattern-to-regex.fn',
],
});
function noXhrIf(
arg1 = ''
) {
if ( typeof arg1 !== 'string' ) { return; }
const xhrInstances = new WeakMap();
const needles = [];
for ( const condition of arg1.split(/\s+/) ) {
if ( condition === '' ) { continue; }
const pos = condition.indexOf(':');
let key, value;
if ( pos !== -1 ) {
key = condition.slice(0, pos);
value = condition.slice(pos + 1);
} else {
key = 'url';
value = condition;
}
needles.push({ key, re: patternToRegex(value) });
}
const log = needles.length === 0 ? console.log.bind(console) : undefined;
self.XMLHttpRequest = class extends self.XMLHttpRequest {
open(...args) {
if ( log !== undefined ) {
log(`uBO: xhr.open(${args.join(', ')})`);
} else {
const argNames = [ 'method', 'url' ];
const haystack = new Map();
for ( let i = 0; i < args.length && i < argNames.length; i++ ) {
haystack.set(argNames[i], args[i]);
}
if ( haystack.size !== 0 ) {
let matches = true;
for ( const { key, re } of needles ) {
matches = re.test(haystack.get(key) || '');
if ( matches === false ) { break; }
}
if ( matches ) {
xhrInstances.set(this, haystack);
}
}
}
return super.open(...args);
}
send(...args) {
const haystack = xhrInstances.get(this);
if ( haystack === undefined ) {
return super.send(...args);
}
Object.defineProperties(this, {
readyState: { value: 4, writable: false },
response: { value: '', writable: false },
responseText: { value: '', writable: false },
responseURL: { value: haystack.get('url'), writable: false },
responseXML: { value: '', writable: false },
status: { value: 200, writable: false },
statusText: { value: 'OK', writable: false },
});
this.dispatchEvent(new Event('readystatechange'));
this.dispatchEvent(new Event('load'));
this.dispatchEvent(new Event('loadend'));
}
};
}
/******************************************************************************/
builtinScriptlets.push({
name: 'window-close-if.js',
fn: windowCloseIf,
dependencies: [
'pattern-to-regex.fn',
],
});
// https://github.com/uBlockOrigin/uAssets/issues/10323#issuecomment-992312847
// https://github.com/AdguardTeam/Scriptlets/issues/158
// https://github.com/uBlockOrigin/uBlock-issues/discussions/2270
function windowCloseIf(
arg1 = ''
) {
if ( typeof arg1 !== 'string' ) { return; }
let subject = '';
if ( /^\/.*\/$/.test(arg1) ) {
subject = window.location.href;
} else if ( arg1 !== '' ) {
subject = `${window.location.pathname}${window.location.search}`;
}
try {
const re = patternToRegex(arg1);
if ( re.test(subject) ) {
window.close();
}
} catch(ex) {
console.log(ex);
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'window.name-defuser.js',
fn: windowNameDefuser,
});
// https://github.com/gorhill/uBlock/issues/1228
function windowNameDefuser() {
if ( window === window.top ) {
window.name = '';
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'overlay-buster.js',
fn: overlayBuster,
});
// Experimental: Generic nuisance overlay buster.
// if this works well and proves to be useful, this may end up
// as a stock tool in uBO's popup panel.
function overlayBuster() {
if ( window !== window.top ) { return; }
var tstart;
var ttl = 30000;
var delay = 0;
var delayStep = 50;
var buster = function() {
var docEl = document.documentElement,
bodyEl = document.body,
vw = Math.min(docEl.clientWidth, window.innerWidth),
vh = Math.min(docEl.clientHeight, window.innerHeight),
tol = Math.min(vw, vh) * 0.05,
el = document.elementFromPoint(vw/2, vh/2),
style, rect;
for (;;) {
if ( el === null || el.parentNode === null || el === bodyEl ) {
break;
}
style = window.getComputedStyle(el);
if ( parseInt(style.zIndex, 10) >= 1000 || style.position === 'fixed' ) {
rect = el.getBoundingClientRect();
if ( rect.left <= tol && rect.top <= tol && (vw - rect.right) <= tol && (vh - rect.bottom) < tol ) {
el.parentNode.removeChild(el);
tstart = Date.now();
el = document.elementFromPoint(vw/2, vh/2);
bodyEl.style.setProperty('overflow', 'auto', 'important');
docEl.style.setProperty('overflow', 'auto', 'important');
continue;
}
}
el = el.parentNode;
}
if ( (Date.now() - tstart) < ttl ) {
delay = Math.min(delay + delayStep, 1000);
setTimeout(buster, delay);
}
};
var domReady = function(ev) {
if ( ev ) {
document.removeEventListener(ev.type, domReady);
}
tstart = Date.now();
setTimeout(buster, delay);
};
if ( document.readyState === 'loading' ) {
document.addEventListener('DOMContentLoaded', domReady);
} else {
domReady();
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'alert-buster.js',
fn: alertBuster,
});
// https://github.com/uBlockOrigin/uAssets/issues/8
function alertBuster() {
window.alert = new Proxy(window.alert, {
apply: function(a) {
console.info(a);
},
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'nowebrtc.js',
fn: noWebrtc,
});
// Prevent web pages from using RTCPeerConnection(), and report attempts in console.
function noWebrtc() {
var rtcName = window.RTCPeerConnection ? 'RTCPeerConnection' : (
window.webkitRTCPeerConnection ? 'webkitRTCPeerConnection' : ''
);
if ( rtcName === '' ) { return; }
var log = console.log.bind(console);
var pc = function(cfg) {
log('Document tried to create an RTCPeerConnection: %o', cfg);
};
const noop = function() {
};
pc.prototype = {
close: noop,
createDataChannel: noop,
createOffer: noop,
setRemoteDescription: noop,
toString: function() {
return '[object RTCPeerConnection]';
}
};
var z = window[rtcName];
window[rtcName] = pc.bind(window);
if ( z.prototype ) {
z.prototype.createDataChannel = function() {
return {
close: function() {},
send: function() {}
};
}.bind(null);
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'golem.de.js',
fn: golemDe,
});
// https://github.com/uBlockOrigin/uAssets/issues/88
function golemDe() {
const rael = window.addEventListener;
window.addEventListener = function(a, b) {
rael(...arguments);
let haystack;
try {
haystack = b.toString();
} catch(ex) {
}
if (
typeof haystack === 'string' &&
/^\s*function\s*\(\)\s*\{\s*window\.clearTimeout\(r\)\s*\}\s*$/.test(haystack)
) {
b();
}
}.bind(window);
}
/******************************************************************************/
builtinScriptlets.push({
name: 'adfly-defuser.js',
fn: adflyDefuser,
});
// https://github.com/reek/anti-adblock-killer/issues/3774#issuecomment-348536138
// https://github.com/uBlockOrigin/uAssets/issues/883
function adflyDefuser() {
// Based on AdsBypasser
// License:
// https://github.com/adsbypasser/adsbypasser/blob/master/LICENSE
var isDigit = /^\d$/;
var handler = function(encodedURL) {
var var1 = "", var2 = "", i;
for (i = 0; i < encodedURL.length; i++) {
if (i % 2 === 0) {
var1 = var1 + encodedURL.charAt(i);
} else {
var2 = encodedURL.charAt(i) + var2;
}
}
var data = (var1 + var2).split("");
for (i = 0; i < data.length; i++) {
if (isDigit.test(data[i])) {
for (var ii = i + 1; ii < data.length; ii++) {
if (isDigit.test(data[ii])) {
var temp = parseInt(data[i],10) ^ parseInt(data[ii],10);
if (temp < 10) {
data[i] = temp.toString();
}
i = ii;
break;
}
}
}
}
data = data.join("");
var decodedURL = window.atob(data).slice(16, -16);
window.stop();
window.onbeforeunload = null;
window.location.href = decodedURL;
};
try {
var val;
var flag = true;
window.Object.defineProperty(window, "ysmm", {
configurable: false,
set: function(value) {
if (flag) {
flag = false;
try {
if (typeof value === "string") {
handler(value);
}
} catch (err) { }
}
val = value;
},
get: function() {
return val;
}
});
} catch (err) {
window.console.error("Failed to set up Adfly bypasser!");
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'disable-newtab-links.js',
fn: disableNewtabLinks,
});
// https://github.com/uBlockOrigin/uAssets/issues/913
function disableNewtabLinks() {
document.addEventListener('click', function(ev) {
var target = ev.target;
while ( target !== null ) {
if ( target.localName === 'a' && target.hasAttribute('target') ) {
ev.stopPropagation();
ev.preventDefault();
break;
}
target = target.parentNode;
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'cookie-remover.js',
fn: cookieRemover,
dependencies: [
'pattern-to-regex.fn',
],
});
// https://github.com/NanoAdblocker/NanoFilters/issues/149
function cookieRemover(
needle = ''
) {
if ( typeof needle !== 'string' ) { return; }
const reName = patternToRegex(needle);
const removeCookie = function() {
document.cookie.split(';').forEach(cookieStr => {
let pos = cookieStr.indexOf('=');
if ( pos === -1 ) { return; }
let cookieName = cookieStr.slice(0, pos).trim();
if ( !reName.test(cookieName) ) { return; }
let part1 = cookieName + '=';
let part2a = '; domain=' + document.location.hostname;
let part2b = '; domain=.' + document.location.hostname;
let part2c, part2d;
let domain = document.domain;
if ( domain ) {
if ( domain !== document.location.hostname ) {
part2c = '; domain=.' + domain;
}
if ( domain.startsWith('www.') ) {
part2d = '; domain=' + domain.replace('www', '');
}
}
let part3 = '; path=/';
let part4 = '; Max-Age=-1000; expires=Thu, 01 Jan 1970 00:00:00 GMT';
document.cookie = part1 + part4;
document.cookie = part1 + part2a + part4;
document.cookie = part1 + part2b + part4;
document.cookie = part1 + part3 + part4;
document.cookie = part1 + part2a + part3 + part4;
document.cookie = part1 + part2b + part3 + part4;
if ( part2c !== undefined ) {
document.cookie = part1 + part2c + part3 + part4;
}
if ( part2d !== undefined ) {
document.cookie = part1 + part2d + part3 + part4;
}
});
};
removeCookie();
window.addEventListener('beforeunload', removeCookie);
}
/******************************************************************************/
builtinScriptlets.push({
name: 'xml-prune.js',
fn: xmlPrune,
dependencies: [
'pattern-to-regex.fn',
],
});
function xmlPrune(
selector = '',
selectorCheck = '',
urlPattern = ''
) {
if ( typeof selector !== 'string' ) { return; }
if ( selector === '' ) { return; }
const reUrl = patternToRegex(urlPattern);
const pruner = text => {
if ( (/^\s*</.test(text) && />\s*$/.test(text)) === false ) {
return text;
}
try {
const xmlParser = new DOMParser();
const xmlDoc = xmlParser.parseFromString(text, 'text/xml');
if ( selectorCheck !== '' && xmlDoc.querySelector(selectorCheck) === null ) {
return text;
}
const elems = xmlDoc.querySelectorAll(selector);
if ( elems.length !== 0 ) {
for ( const elem of elems ) {
elem.remove();
}
const serializer = new XMLSerializer();
text = serializer.serializeToString(xmlDoc);
}
} catch(ex) {
}
return text;
};
2022-09-25 04:49:41 -06:00
const urlFromArg = arg => {
if ( typeof arg === 'string' ) { return arg; }
if ( arg instanceof Request ) { return arg.url; }
return String(arg);
};
const realFetch = self.fetch;
self.fetch = new Proxy(self.fetch, {
apply: function(target, thisArg, args) {
if ( reUrl.test(urlFromArg(args[0])) === false ) {
return Reflect.apply(target, thisArg, args);
}
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return realFetch(...args).then(realResponse =>
realResponse.text().then(text =>
new Response(pruner(text), {
status: realResponse.status,
statusText: realResponse.statusText,
headers: realResponse.headers,
})
)
);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'm3u-prune.js',
fn: m3uPrune,
});
// https://en.wikipedia.org/wiki/M3U
function m3uPrune(
m3uPattern = '',
urlPattern = ''
) {
if ( typeof m3uPattern !== 'string' ) { return; }
const regexFromArg = arg => {
if ( arg === '' ) { return /^/; }
const match = /^\/(.+)\/([gms]*)$/.exec(arg);
if ( match !== null ) {
let flags = match[2] || '';
if ( flags.includes('m') ) { flags += 's'; }
return new RegExp(match[1], flags);
}
return new RegExp(
arg.replace(/[.+?^${}()|[\]\\]/g, '\\$&').replace(/\*+/g, '.*?')
);
};
const reM3u = regexFromArg(m3uPattern);
const reUrl = regexFromArg(urlPattern);
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const pruneSpliceoutBlock = (lines, i) => {
if ( lines[i].startsWith('#EXT-X-CUE:TYPE="SpliceOut"') === false ) {
return false;
}
lines[i] = undefined; i += 1;
if ( lines[i].startsWith('#EXT-X-ASSET:CAID') ) {
lines[i] = undefined; i += 1;
}
if ( lines[i].startsWith('#EXT-X-SCTE35:') ) {
lines[i] = undefined; i += 1;
}
if ( lines[i].startsWith('#EXT-X-CUE-IN') ) {
lines[i] = undefined; i += 1;
}
if ( lines[i].startsWith('#EXT-X-SCTE35:') ) {
lines[i] = undefined; i += 1;
}
return true;
};
const pruneInfBlock = (lines, i) => {
if ( lines[i].startsWith('#EXTINF') === false ) { return false; }
if ( reM3u.test(lines[i+1]) === false ) { return false; }
lines[i] = lines[i+1] = undefined; i += 2;
if ( lines[i].startsWith('#EXT-X-DISCONTINUITY') ) {
lines[i] = undefined; i += 1;
}
return true;
};
const pruner = text => {
if ( (/^\s*#EXTM3U/.test(text)) === false ) { return text; }
if ( reM3u.multiline ) {
reM3u.lastIndex = 0;
for (;;) {
const match = reM3u.exec(text);
if ( match === null ) { break; }
const before = text.slice(0, match.index);
if ( before.length === 0 || /[\n\r]+\s*$/.test(before) ) {
const after = text.slice(match.index + match[0].length);
if ( after.length === 0 || /^\s*[\n\r]+/.test(after) ) {
text = before.trim() + '\n' + after.trim();
reM3u.lastIndex = before.length + 1;
}
}
if ( reM3u.global === false ) { break; }
}
}
2022-09-26 20:37:11 -06:00
const lines = text.split(/\n\r|\n|\r/);
for ( let i = 0; i < lines.length; i++ ) {
2022-09-26 20:37:11 -06:00
if ( lines[i] === undefined ) { continue; }
if ( pruneSpliceoutBlock(lines, i) ) { continue; }
if ( pruneInfBlock(lines, i) ) { continue; }
}
return lines.filter(l => l !== undefined).join('\n');
};
const urlFromArg = arg => {
if ( typeof arg === 'string' ) { return arg; }
if ( arg instanceof Request ) { return arg.url; }
return String(arg);
};
const realFetch = self.fetch;
self.fetch = new Proxy(self.fetch, {
apply: function(target, thisArg, args) {
if ( reUrl.test(urlFromArg(args[0])) === false ) {
return Reflect.apply(target, thisArg, args);
}
return realFetch(...args).then(realResponse =>
realResponse.text().then(text =>
new Response(pruner(text), {
status: realResponse.status,
statusText: realResponse.statusText,
headers: realResponse.headers,
})
)
);
}
});
self.XMLHttpRequest.prototype.open = new Proxy(self.XMLHttpRequest.prototype.open, {
apply: async (target, thisArg, args) => {
if ( reUrl.test(urlFromArg(args[1])) === false ) {
return Reflect.apply(target, thisArg, args);
}
thisArg.addEventListener('readystatechange', function() {
if ( thisArg.readyState !== 4 ) { return; }
const type = thisArg.responseType;
if ( type !== '' && type !== 'text' ) { return; }
const textin = thisArg.responseText;
const textout = pruner(textin);
if ( textout === textin ) { return; }
2022-09-26 20:37:11 -06:00
Object.defineProperty(thisArg, 'response', { value: textout });
Object.defineProperty(thisArg, 'responseText', { value: textout });
});
return Reflect.apply(target, thisArg, args);
}
});
}
/******************************************************************************/
builtinScriptlets.push({
name: 'href-sanitizer.js',
fn: hrefSanitizer,
});
function hrefSanitizer(
selector = '',
source = ''
) {
if ( typeof selector !== 'string' ) { return; }
if ( selector === '' ) { return; }
if ( source === '' ) { source = 'text'; }
const sanitizeCopycats = (href, text) => {
let elems = [];
try {
elems = document.querySelectorAll(`a[href="${href}"`);
}
catch(ex) {
}
for ( const elem of elems ) {
elem.setAttribute('href', text);
}
};
const extractText = (elem, source) => {
if ( /^\[.*\]$/.test(source) ) {
return elem.getAttribute(source.slice(1,-1).trim()) || '';
}
if ( source !== 'text' ) { return ''; }
const text = elem.textContent
.replace(/^[^\x21-\x7e]+/, '') // remove leading invalid characters
.replace(/[^\x21-\x7e]+$/, '') // remove trailing invalid characters
;
if ( /^https:\/\/./.test(text) === false ) { return ''; }
if ( /[^\x21-\x7e]/.test(text) ) { return ''; }
return text;
};
const sanitize = ( ) => {
let elems = [];
try {
elems = document.querySelectorAll(selector);
}
catch(ex) {
return false;
}
for ( const elem of elems ) {
if ( elem.localName !== 'a' ) { continue; }
if ( elem.hasAttribute('href') === false ) { continue; }
const href = elem.getAttribute('href');
const text = extractText(elem, source);
if ( text === '' ) { continue; }
if ( href === text ) { continue; }
elem.setAttribute('href', text);
sanitizeCopycats(href, text);
}
return true;
};
let observer, timer;
const onDomChanged = mutations => {
if ( timer !== undefined ) { return; }
let shouldSanitize = false;
for ( const mutation of mutations ) {
if ( mutation.addedNodes.length === 0 ) { continue; }
for ( const node of mutation.addedNodes ) {
if ( node.nodeType !== 1 ) { continue; }
shouldSanitize = true;
break;
}
if ( shouldSanitize ) { break; }
}
if ( shouldSanitize === false ) { return; }
timer = self.requestAnimationFrame(( ) => {
timer = undefined;
sanitize();
});
};
const start = ( ) => {
if ( sanitize() === false ) { return; }
observer = new MutationObserver(onDomChanged);
observer.observe(document.body, {
subtree: true,
childList: true,
});
};
if ( document.readyState === 'loading' ) {
document.addEventListener('DOMContentLoaded', start, { once: true });
} else {
start();
}
}
/******************************************************************************/
builtinScriptlets.push({
name: 'call-nothrow.js',
fn: callNothrow,
});
function callNothrow(
chain = ''
) {
if ( typeof chain !== 'string' ) { return; }
if ( chain === '' ) { return; }
const parts = chain.split('.');
let owner = window, prop;
for (;;) {
prop = parts.shift();
if ( parts.length === 0 ) { break; }
owner = owner[prop];
if ( owner instanceof Object === false ) { return; }
}
if ( prop === '' ) { return; }
const fn = owner[prop];
if ( typeof fn !== 'function' ) { return; }
owner[prop] = new Proxy(fn, {
apply: function(...args) {
let r;
try {
r = Reflect.apply(...args);
} catch(ex) {
}
return r;
},
});
}
/******************************************************************************/