Conversion from .apply to ['apply'] corrupts the application #1248
Description
Expected Behavior
.apply(...) is not converted to ['apply'](...)
Current Behavior
.apply(...) is converted to ['apply'](...) and gives undefined
What is happening
When i obfuscate my main.js file with this configuration (minimal obfuscation)
{
"compact": false,
"controlFlowFlattening": false,
"controlFlowFlatteningThreshold": 0.75,
"deadCodeInjection": false,
"deadCodeInjectionThreshold": 0,
"debugProtection": false,
"debugProtectionInterval": 0,
"disableConsoleOutput": false,
"domainLock": [],
"domainLockRedirectUrl": "about:blank",
"forceTransformStrings": [],
"identifierNamesCache": {},
"identifierNamesGenerator": "mangled-shuffled",
"identifiersDictionary": [],
"identifiersPrefix": "",
"ignoreRequireImports": true,
"inputFileName": "",
"log": false,
"numbersToExpressions": false,
"optionsPreset": "default",
"renameGlobals": false,
"renameProperties": false,
"renamePropertiesMode": "safe",
"reservedNames": [
"webpackJsonp"
],
"reservedStrings": [
"webpackJsonp"
],
"seed": 1,
"selfDefending": false,
"simplify": false,
"sourceMap": false,
"sourceMapBaseUrl": "",
"sourceMapFileName": "",
"sourceMapMode": "separate",
"sourceMapSourcesMode": "sources-content",
"splitStrings": false,
"splitStringsChunkLength": 5,
"stringArray": false,
"stringArrayCallsTransform": false,
"stringArrayEncoding": [],
"stringArrayIndexesType": [
"hexadecimal-number"
],
"stringArrayIndexShift": false,
"stringArrayRotate": false,
"stringArrayShuffle": false,
"stringArrayWrappersCount": 1,
"stringArrayWrappersChainedCalls": false,
"stringArrayWrappersParametersMaxCount": 2,
"stringArrayWrappersType": "variable",
"stringArrayThreshold": 0.75,
"target": "browser",
"transformObjectKeys": false,
"unicodeEscapeSequence": false
}Gives me errors about undefined variables, when trying to minify an es5 class that inherits and calls the constructor
Real example:
inside a node module in my project, i got this es5 code that is later embedded in my main.js that will be obfuscated
var MyConfigService = /** @class */ (function (_super) {
tslib_1.__extends(MyConfigService, _super);
function MyConfigService() {
return _super !== null && _super.apply(this, arguments) || this;
}
MyConfigService = tslib_1.__decorate([
Injectable()
], MyConfigService);
return MyConfigService;
}(ConfigService));
export { MyConfigService };this code gets transpiled by the angular pipeline and minified with uglify-js to
j = (function (o) {
function e() {
return (null !== o && o.apply(this, arguments)) || this;
}
return Object(t.d)(e, o), (e = Object(t.c)([Object(r.B)()], e));
})(a.c)Then i apply javascript-obfuscator and the code is converted to:
Uo = function (p8) {
function p9() {
return null !== p8 && p8['apply'](this, arguments) || this;
}
return Object(U4['d'])(p9, p8), p9 = Object(U4['c'])([Object(U5['B'])()], p9);
}(UU['c'])If i replace ['apply'] with .apply the code starts working again!
My question
Is it possible to disable the transformation of some keywords (for example apply)?
Steps to Reproduce
i'm not able to post the code since it's under NDA, but i provided a clear example of what happens above
Your Environment
- Obfuscator version used:
4.1.0 - Node version used:
14.17.0