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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.
*/
// The lines below are skipped by the resource parser. Purpose is clean
// jshinting.
(function() {
// >>>> start of private namespace
'use strict';
/// abort-current-inline-script.js
/// alias acis.js
(function() {
const target = '{{1}}';
if ( target === '' || target === '{{1}}' ) { return; }
const needle = '{{2}}';
let reText = '.?';
if ( needle !== '' && needle !== '{{2}}' ) {
reText = /^\/.+\/$/.test(needle)
? needle.slice(1,-1)
: needle.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const thisScript = document.currentScript;
const re = new RegExp(reText);
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 magic = String.fromCharCode(Date.now() % 26 + 97) +
Math.floor(Math.random() * 982451653 + 982451653).toString(36);
const validate = function() {
const e = document.currentScript;
if (
e instanceof HTMLScriptElement &&
e.src === '' &&
e !== thisScript &&
re.test(e.textContent)
) {
throw new ReferenceError(magic);
}
};
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;
}
}
});
const oe = window.onerror;
window.onerror = function(msg) {
if ( typeof msg === 'string' && msg.indexOf(magic) !== -1 ) {
return true;
}
if ( oe instanceof Function ) {
return oe.apply(this, arguments);
}
}.bind();
})();
/// abort-on-property-read.js
/// alias aopr.js
(function() {
const magic = String.fromCharCode(Date.now() % 26 + 97) +
Math.floor(Math.random() * 982451653 + 982451653).toString(36);
const abort = function() {
throw new ReferenceError(magic);
};
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;
let chain = '{{1}}';
makeProxy(owner, chain);
const oe = window.onerror;
window.onerror = function(msg, src, line, col, error) {
if ( typeof msg === 'string' && msg.indexOf(magic) !== -1 ) {
return true;
}
if ( oe instanceof Function ) {
return oe(msg, src, line, col, error);
}
}.bind();
})();
/// abort-on-property-write.js
/// alias aopw.js
(function() {
const magic = String.fromCharCode(Date.now() % 26 + 97) +
Math.floor(Math.random() * 982451653 + 982451653).toString(36);
let prop = '{{1}}';
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(magic);
}
});
const oe = window.onerror;
window.onerror = function(msg, src, line, col, error) {
if ( typeof msg === 'string' && msg.indexOf(magic) !== -1 ) {
return true;
}
if ( oe instanceof Function ) {
return oe(msg, src, line, col, error);
}
}.bind();
})();
/// abort-on-stack-trace.js
/// alias aost.js
// Status is currently experimental
(function() {
let chain = '{{1}}';
let needle = '{{2}}';
let logLevel = '{{3}}';
const reRegexEscape = /[.*+?^${}()|[\]\\]/g;
if ( needle === '' || needle === '{{2}}' ) {
needle = '^';
} else if ( /^\/.+\/$/.test(needle) ) {
needle = needle.slice(1,-1);
} else {
needle = needle.replace(reRegexEscape, '\\$&');
}
const reNeedle = new RegExp(needle);
const magic = String.fromCharCode(Math.random() * 26 + 97) +
Math.floor(
(0.25 + Math.random() * 0.75) * Number.MAX_SAFE_INTEGER
).toString(36).slice(-8);
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 lines = [];
for ( let line of err.stack.split(/[\n\r]+/) ) {
if ( line.includes(magic) ) { continue; }
line = line.trim();
let match = /(.*?@)?(\S+)(:\d+):\d+\)?$/.exec(line);
if ( match === null ) { continue; }
let url = match[2];
if ( url.startsWith('(') ) { url = url.slice(1); }
if ( url === docURL ) {
url = 'inlineScript';
} else if ( url.startsWith('<anonymous>') ) {
url = 'injectedScript';
}
let fn = match[1] !== undefined
? match[1].slice(0, -1)
: line.slice(0, match.index).trim();
if ( fn.startsWith('at') ) { fn = fn.slice(2).trim(); }
let rowcol = match[3];
lines.push(' ' + `${fn} ${url}${rowcol}:1`.trim());
}
lines[0] = `stackDepth:${lines.length-1}`;
const stack = lines.join('\t');
const r = reNeedle.test(stack);
if (
logLevel === '1' ||
logLevel === '2' && r ||
logLevel === '3' && !r
) {
log(stack.replace(/\t/g, '\n'));
}
return r;
};
const makeProxy = function(owner, chain) {
const pos = chain.indexOf('.');
if ( pos === -1 ) {
let v = owner[chain];
Object.defineProperty(owner, chain, {
get: function() {
if ( mustAbort(new ErrorCtor(magic)) ) {
throw new ReferenceError(magic);
}
return v;
},
set: function(a) {
if ( mustAbort(new ErrorCtor(magic)) ) {
throw new ReferenceError(magic);
}
v = a;
},
});
return;
}
const prop = chain.slice(0, pos);
let v = owner[prop];
chain = chain.slice(pos + 1);
if ( v ) {
makeProxy(v, chain);
return;
}
const desc = Object.getOwnPropertyDescriptor(owner, prop);
if ( desc && desc.set !== undefined ) { return; }
Object.defineProperty(owner, prop, {
get: function() { return v; },
set: function(a) {
v = a;
if ( a instanceof Object ) {
makeProxy(a, chain);
}
}
});
};
const owner = window;
makeProxy(owner, chain);
const oe = window.onerror;
window.onerror = function(msg, src, line, col, error) {
if ( typeof msg === 'string' && msg.indexOf(magic) !== -1 ) {
return true;
}
if ( oe instanceof Function ) {
return oe(msg, src, line, col, error);
}
}.bind();
})();
/// addEventListener-defuser.js
/// alias aeld.js
// https://github.com/uBlockOrigin/uAssets/issues/9123#issuecomment-848255120
(function() {
let needle1 = '{{1}}';
if ( needle1 === '' || needle1 === '{{1}}' ) {
needle1 = '.?';
} else if ( /^\/.+\/$/.test(needle1) ) {
needle1 = needle1.slice(1,-1);
} else {
needle1 = needle1.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
needle1 = new RegExp(needle1);
let needle2 = '{{2}}';
if ( needle2 === '' || needle2 === '{{2}}' ) {
needle2 = '.?';
} else if ( /^\/.+\/$/.test(needle2) ) {
needle2 = needle2.slice(1,-1);
} else {
needle2 = needle2.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
needle2 = new RegExp(needle2);
self.EventTarget.prototype.addEventListener = new Proxy(
self.EventTarget.prototype.addEventListener,
{
apply: function(target, thisArg, args) {
let type, handler;
try {
type = String(args[0]);
handler = String(args[1]);
} catch(ex) {
}
if (
needle1.test(type) === false ||
needle2.test(handler) === false
) {
return target.apply(thisArg, args);
}
}
}
);
})();
/// addEventListener-logger.js
/// alias aell.js
// https://github.com/uBlockOrigin/uAssets/issues/9123#issuecomment-848255120
(function() {
const log = console.log.bind(console);
self.EventTarget.prototype.addEventListener = new Proxy(
self.EventTarget.prototype.addEventListener,
{
apply: function(target, thisArg, args) {
let type, handler;
try {
type = String(args[0]);
handler = String(args[1]);
} catch(ex) {
}
log('uBO: addEventListener("%s", %s)', type, handler);
return target.apply(thisArg, args);
}
}
);
})();
/// json-prune.js
//
// 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() {
const rawPrunePaths = '{{1}}';
const rawNeedlePaths = '{{2}}';
const prunePaths = rawPrunePaths !== '{{1}}' && rawPrunePaths !== ''
? rawPrunePaths.split(/ +/)
: [];
let needlePaths;
let log, reLogNeedle;
if ( prunePaths.length !== 0 ) {
needlePaths = prunePaths.length !== 0 &&
rawNeedlePaths !== '{{2}}' && rawNeedlePaths !== ''
? rawNeedlePaths.split(/ +/)
: [];
} else {
log = console.log.bind(console);
let needle;
if ( rawNeedlePaths === '' || rawNeedlePaths === '{{2}}' ) {
needle = '.?';
} else if ( rawNeedlePaths.charAt(0) === '/' && rawNeedlePaths.slice(-1) === '/' ) {
needle = rawNeedlePaths.slice(1, -1);
} else {
needle = rawNeedlePaths.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
reLogNeedle = new RegExp(needle);
}
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));
},
});
})();
// 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.
/// nano-setInterval-booster.js
/// alias nano-sib.js
(function() {
let needleArg = '{{1}}';
if ( needleArg === '{{1}}' ) { needleArg = ''; }
let delayArg = '{{2}}';
if ( delayArg === '{{2}}' ) { delayArg = ''; }
let boostArg = '{{3}}';
if ( boostArg === '{{3}}' ) { boostArg = ''; }
if ( needleArg === '' ) {
needleArg = '.?';
} else if ( needleArg.charAt(0) === '/' && needleArg.slice(-1) === '/' ) {
needleArg = needleArg.slice(1, -1);
} else {
needleArg = needleArg.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const reNeedle = new RegExp(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);
}
});
})();
// 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.
/// nano-setTimeout-booster.js
/// alias nano-stb.js
(function() {
let needleArg = '{{1}}';
if ( needleArg === '{{1}}' ) { needleArg = ''; }
let delayArg = '{{2}}';
if ( delayArg === '{{2}}' ) { delayArg = ''; }
let boostArg = '{{3}}';
if ( boostArg === '{{3}}' ) { boostArg = ''; }
if ( needleArg === '' ) {
needleArg = '.?';
} else if ( needleArg.charAt(0) === '/' && needleArg.slice(-1) === '/' ) {
needleArg = needleArg.slice(1, -1);
} else {
needleArg = needleArg.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const reNeedle = new RegExp(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);
}
});
})();
/// noeval-if.js
(function() {
let needle = '{{1}}';
if ( needle === '' || needle === '{{1}}' ) {
needle = '.?';
} else if ( needle.slice(0,1) === '/' && needle.slice(-1) === '/' ) {
needle = needle.slice(1,-1);
} else {
needle = needle.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
needle = new RegExp(needle);
window.eval = new Proxy(window.eval, { // jshint ignore: line
apply: function(target, thisArg, args) {
const a = args[0];
if ( needle.test(a.toString()) === false ) {
return target.apply(thisArg, args);
}
}
});
})();
/// no-fetch-if.js
(function() {
let arg1 = '{{1}}';
if ( arg1 === '{{1}}' ) { arg1 = ''; }
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;
}
if ( value === '' ) {
value = '^';
} else if ( value.startsWith('/') && value.endsWith('/') ) {
value = value.slice(1, -1);
} else {
value = value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
needles.push({ key, re: new RegExp(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(${out})`);
}
proceed = needles.length === 0;
for ( const { key, re } of needles ) {
if (
props.has(key) === false ||
re.test(props.get(key)) === false
) {
proceed = true;
break;
}
}
} catch(ex) {
}
return proceed
? Reflect.apply(target, thisArg, args)
: Promise.resolve(new Response());
}
});
})();
/// no-floc.js
// https://github.com/uBlockOrigin/uBlock-issues/issues/1553
(function() {
if ( Document instanceof Object === false ) { return; }
if ( Document.prototype.interestCohort instanceof Function === false ) {
return;
}
Document.prototype.interestCohort = new Proxy(
Document.prototype.interestCohort,
{
apply: function() {
return Promise.reject();
}
}
);
})();
/// remove-attr.js
/// alias ra.js
(function() {
const token = '{{1}}';
if ( token === '' || token === '{{1}}' ) { return; }
const tokens = token.split(/\s*\|\s*/);
let selector = '{{2}}';
if ( selector === '' || selector === '{{2}}' ) {
selector = `[${tokens.join('],[')}]`;
}
let behavior = '{{3}}';
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: 67 });
};
const start = ( ) => {
rmattr();
if ( /\bstay\b/.test(behavior) === false ) { return; }
const observer = new MutationObserver(mutationHandler);
observer.observe(document.documentElement, {
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' ) {
self.addEventListener('DOMContentLoaded', start, { once: true });
} else {
start();
}
})();
/// remove-class.js
/// alias rc.js
(function() {
const token = '{{1}}';
if ( token === '' || token === '{{1}}' ) { return; }
const tokens = token.split(/\s*\|\s*/);
let selector = '{{2}}';
if ( selector === '' || selector === '{{2}}' ) {
selector = '.' + tokens.map(a => CSS.escape(a)).join(',.');
}
const rmclass = function() {
try {
const nodes = document.querySelectorAll(selector);
for ( const node of nodes ) {
node.classList.remove(...tokens);
}
} catch(ex) {
}
};
if ( document.readyState === 'loading' ) {
window.addEventListener(
'DOMContentLoaded',
rmclass,
{ capture: true, once: true }
);
} else {
rmclass();
}
})();
/// no-requestAnimationFrame-if.js
/// alias norafif.js
(function() {
let needle = '{{1}}';
if ( needle === '{{1}}' ) { needle = ''; }
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
if ( needle.startsWith('/') && needle.endsWith('/') ) {
needle = needle.slice(1, -1);
} else if ( needle !== '' ) {
needle = needle.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const log = needleNot === false && needle === '' ? console.log : undefined;
const reNeedle = new RegExp(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);
}
});
})();
/// set-constant.js
/// alias set.js
(function() {
const chain = '{{1}}';
let cValue = '{{2}}';
const thisScript = document.currentScript;
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 === 'noopFunc' ) {
cValue = function(){};
} else if ( cValue === 'trueFunc' ) {
cValue = function(){ return true; };
} else if ( cValue === 'falseFunc' ) {
cValue = function(){ return false; };
} else if ( /^\d+$/.test(cValue) ) {
cValue = parseFloat(cValue);
if ( isNaN(cValue) ) { return; }
if ( Math.abs(cValue) > 0x7FFF ) { return; }
} else if ( cValue === "''" ) {
cValue = '';
} 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 ) {
if ( odesc.configurable === false ) { return; }
if ( odesc.get instanceof Function ) {
prevGetter = odesc.get;
}
if ( odesc.set instanceof Function ) {
prevSetter = odesc.set;
}
}
Object.defineProperty(owner, prop, {
configurable,
get() {
if ( prevGetter !== undefined ) {
prevGetter();
}
return handler.getter(); // cValue
},
set(a) {
if ( prevSetter !== undefined ) {
prevSetter(a);
}
handler.setter(a);
}
});
};
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);
})();
/// no-setInterval-if.js
/// alias nosiif.js
(function() {
let needle = '{{1}}';
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
let delay = '{{2}}';
if ( delay === '{{2}}' ) { delay = undefined; }
let delayNot = false;
if ( delay !== undefined ) {
delayNot = delay.charAt(0) === '!';
if ( delayNot ) { delay = delay.slice(1); }
delay = parseInt(delay, 10);
}
if ( needle === '' || needle === '{{1}}' ) {
needle = '';
} else if ( needle.startsWith('/') && needle.endsWith('/') ) {
needle = needle.slice(1,-1);
} else {
needle = needle.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
}
const log = needleNot === false && needle === '' && delay === undefined
? console.log
: undefined;
const reNeedle = new RegExp(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);
}
});
})();
/// no-setTimeout-if.js
/// alias nostif.js
/// alias setTimeout-defuser.js
(function() {
let needle = '{{1}}';
const needleNot = needle.charAt(0) === '!';
if ( needleNot ) { needle = needle.slice(1); }
let delay = '{{2}}';
if ( delay === '{{2}}' ) { delay = undefined; }
let delayNot = false;
if ( delay !== undefined ) {
delayNot = delay.charAt(0) === '!';
if ( delayNot ) { delay = delay.slice(1); }