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feat(adblocker): improve In-Player adblocker

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JellyBrick
2024-06-01 10:01:53 +09:00
parent 1f1efac466
commit 5b9e947b8f
1 changed files with 21 additions and 202 deletions
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223
src/plugins/adblocker/injectors/inject.js
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@ -52,9 +52,26 @@ export const inject = (contextBridge) => {
}));
}
(function () {
let cValue = 'undefined';
const chain = 'playerResponse.adPlacements';
const chains = [
{
chain: 'playerResponse.adPlacements',
cValue: 'undefined',
},
{
chain: 'ytInitialPlayerResponse.playerAds',
cValue: 'undefined',
},
{
chain: 'ytInitialPlayerResponse.adPlacements',
cValue: 'undefined',
},
{
chain: 'ytInitialPlayerResponse.adSlots',
cValue: 'undefined',
}
];
chains.forEach(function ({ chain, cValue }) {
const thisScript = document.currentScript;
//
switch (cValue) {
@ -248,203 +265,5 @@ export const inject = (contextBridge) => {
//
trapChain(window, chain);
})();
(function () {
let cValue = 'undefined';
const thisScript = document.currentScript;
const chain = 'ytInitialPlayerResponse.adPlacements';
//
switch (cValue) {
case 'null': {
cValue = null;
break;
}
case "''": {
cValue = '';
break;
}
case 'true': {
cValue = true;
break;
}
case 'false': {
cValue = false;
break;
}
case 'undefined': {
cValue = undefined;
break;
}
case 'noopFunc': {
cValue = function () {};
break;
}
case 'trueFunc': {
cValue = function () {
return true;
};
break;
}
case 'falseFunc': {
cValue = function () {
return false;
};
break;
}
default: {
if (/^\d+$/.test(cValue)) {
cValue = Number.parseFloat(cValue);
//
if (isNaN(cValue)) {
return;
}
if (Math.abs(cValue) > 0x7f_ff) {
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;
};
/*
Support multiple trappers for the same property:
https://github.com/uBlockOrigin/uBlock-issues/issues/156
*/
const trapProp = function (owner, prop, configurable, handler) {
if (handler.init(owner[prop]) === false) {
return;
}
//
const odesc = Object.getOwnPropertyDescriptor(owner, prop);
let previousGetter;
let previousSetter;
if (odesc instanceof Object) {
if (odesc.configurable === false) {
return;
}
if (odesc.get instanceof Function) {
previousGetter = odesc.get;
}
if (odesc.set instanceof Function) {
previousSetter = odesc.set;
}
}
//
Object.defineProperty(owner, prop, {
configurable,
get() {
if (previousGetter !== undefined) {
previousGetter();
}
//
return handler.getter();
},
set(a) {
if (previousSetter !== undefined) {
previousSetter(a);
}
//
handler.setter(a);
},
});
};
const trapChain = function (owner, chain) {
const pos = chain.indexOf('.');
if (pos === -1) {
trapProp(owner, chain, false, {
v: undefined,
getter() {
return document.currentScript === thisScript ? this.v : cValue;
},
setter(a) {
if (mustAbort(a) === false) {
return;
}
cValue = a;
},
init(v) {
if (mustAbort(v)) {
return false;
}
//
this.v = v;
return true;
},
});
//
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,
getter() {
return this.v;
},
setter(a) {
this.v = a;
if (a instanceof Object) {
trapChain(a, chain);
}
},
init(v) {
this.v = v;
return true;
},
});
};
//
trapChain(window, chain);
})();
});
};