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ObfuscationResult.ts
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149 lines (124 loc) · 4.46 KB
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import { inject, injectable } from 'inversify';
import { ServiceIdentifiers } from '../container/ServiceIdentifiers';
import { TIdentifierNamesCache } from '../types/TIdentifierNamesCache';
import { ICryptUtils } from '../interfaces/utils/ICryptUtils';
import { IGlobalIdentifierNamesCacheStorage } from '../interfaces/storages/identifier-names-cache/IGlobalIdentifierNamesCacheStorage';
import { IObfuscationResult } from '../interfaces/source-code/IObfuscationResult';
import { IPropertyIdentifierNamesCacheStorage } from '../interfaces/storages/identifier-names-cache/IPropertyIdentifierNamesCacheStorage';
import { IOptions } from '../interfaces/options/IOptions';
import { initializable } from '../decorators/Initializable';
import { SourceMapMode } from '../enums/source-map/SourceMapMode';
@injectable()
export class ObfuscationResult implements IObfuscationResult {
/**
* @type {string}
*/
@initializable()
private obfuscatedCode!: string;
/**
* @type {string}
*/
@initializable()
private sourceMap!: string;
/**
* @type {ICryptUtils}
*/
private readonly cryptUtils: ICryptUtils;
/**
* @type {IGlobalIdentifierNamesCacheStorage}
*/
private readonly globalIdentifierNamesCacheStorage: IGlobalIdentifierNamesCacheStorage;
/**
* @type {IPropertyIdentifierNamesCacheStorage}
*/
private readonly propertyIdentifierNamesCacheStorage: IPropertyIdentifierNamesCacheStorage;
/**
* @type {IOptions}
*/
private readonly options: IOptions;
/**
* @param {ICryptUtils} cryptUtils
* @param {IGlobalIdentifierNamesCacheStorage} globalIdentifierNamesCacheStorage
* @param {IPropertyIdentifierNamesCacheStorage} propertyIdentifierNamesCacheStorage
* @param {IOptions} options
*/
public constructor (
@inject(ServiceIdentifiers.ICryptUtils) cryptUtils: ICryptUtils,
@inject(ServiceIdentifiers.IGlobalIdentifierNamesCacheStorage)
globalIdentifierNamesCacheStorage: IGlobalIdentifierNamesCacheStorage,
@inject(ServiceIdentifiers.IPropertyIdentifierNamesCacheStorage)
propertyIdentifierNamesCacheStorage: IPropertyIdentifierNamesCacheStorage,
@inject(ServiceIdentifiers.IOptions) options: IOptions
) {
this.cryptUtils = cryptUtils;
this.globalIdentifierNamesCacheStorage = globalIdentifierNamesCacheStorage;
this.propertyIdentifierNamesCacheStorage = propertyIdentifierNamesCacheStorage;
this.options = options;
}
/**
* @param {string} obfuscatedCode
* @param {string} sourceMap
*/
public initialize (obfuscatedCode: string, sourceMap: string): void {
this.obfuscatedCode = obfuscatedCode;
this.sourceMap = sourceMap;
}
/**
* @returns {string}
*/
public getIdentifierNamesCache (): TIdentifierNamesCache {
if (!this.options.identifierNamesCache) {
return null;
}
return {
globalIdentifiers: this.globalIdentifierNamesCacheStorage.getStorageAsDictionary(),
propertyIdentifiers: this.propertyIdentifierNamesCacheStorage.getStorageAsDictionary()
};
}
/**
* @returns {string}
*/
public getObfuscatedCode (): string {
return this.correctObfuscatedCode();
}
/**
* @returns {IOptions}
*/
public getOptions (): IOptions {
return this.options;
}
/**
* @returns {string}
*/
public getSourceMap (): string {
return this.sourceMap;
}
/**
* @returns {string}
*/
public toString (): string {
return this.obfuscatedCode;
}
/**
* @returns {string}
*/
private correctObfuscatedCode (): string {
if (!this.sourceMap) {
return this.obfuscatedCode;
}
const sourceMapUrl: string = this.options.sourceMapBaseUrl + this.options.sourceMapFileName;
let sourceMappingUrl: string = '//# sourceMappingURL=';
switch (this.options.sourceMapMode) {
case SourceMapMode.Inline:
sourceMappingUrl += `data:application/json;base64,${this.cryptUtils.btoa(this.sourceMap)}`;
break;
case SourceMapMode.Separate:
default:
if (!sourceMapUrl) {
return this.obfuscatedCode;
}
sourceMappingUrl += sourceMapUrl;
}
return `${this.obfuscatedCode}\n${sourceMappingUrl}`;
}
}