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BetterDiscordApp-rauenzi
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Code Issues 3 Releases Wiki Activity

Make patcher work with getters

This commit is contained in:
Strencher 2022-10-08 10:40:45 +02:00
parent 46c57567d0
commit dd97539da3
1 changed files with 276 additions and 232 deletions
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54
renderer/src/modules/patcher.js
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@ -104,17 +104,57 @@ export default class Patcher {
originalFunction: module[functionName],
proxyFunction: null,
revert: () => { // Calling revert will destroy any patches added to the same module after this
patch.module[patch.functionName] = patch.originalFunction;
if (patch.getter) {
Object.defineProperty(patch.module, functionName, {
get: () => patch.originalFunction,
configurable: true,
enumerable: true
});
} else {
patch.module[patch.functionName] = patch.originalFunction;
}
patch.proxyFunction = null;
patch.children = [];
},
counter: 0,
children: []
};
patch.proxyFunction = module[functionName] = this.makeOverride(patch);
Object.assign(module[functionName], patch.originalFunction);
module[functionName].__originalFunction = patch.originalFunction;
module[functionName].toString = () => patch.originalFunction.toString();
patch.proxyFunction = this.makeOverride(patch);
const descriptor = Object.getOwnPropertyDescriptor(module, functionName);
if (descriptor.get) {
patch.getter = true;
Object.defineProperty(module, functionName, {
get: () => patch.proxyFunction,
set: value => (patch.originalFunction = value),
configurable: true,
enumerable: true
});
} else {
patch.getter = false;
module[functionName] = patch.proxyFunction;
}
const descriptors = Object.assign({}, Object.getOwnPropertyDescriptors(patch.originalFunction), {
__originalFunction: {
get: () => patch.originalFunction,
configurable: true,
enumerable: true,
writeable: true
},
toString: {
value: () => patch.originalFunction.toString(),
configurable: true,
enumerable: true,
writeable: true
}
});
Object.defineProperties(patch.proxyFunction, descriptors);
this.patches.push(patch);
return patch;
}
@ -202,6 +242,10 @@ export default class Patcher {
if (!module) return null;
if (!module[functionName] && forcePatch) module[functionName] = function() {};
if (!(module[functionName] instanceof Function)) return null;
if (!Object.getOwnPropertyDescriptor(module, functionName)?.configurable) {
Logger.err("Patcher", `Cannot patch ${functionName} of Module, property is readonly.`);
return null;
}
if (typeof moduleToPatch === "string") options.displayName = moduleToPatch;
const displayName = options.displayName || module.displayName || module.name || module.constructor.displayName || module.constructor.name;