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OptionsNormalizer.ts
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83 lines (70 loc) · 2.31 KB
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import { IObfuscatorOptions } from "./interfaces/IObfuscatorOptions";
import { TOptionsNormalizerRule } from "./types/TOptionsNormalizerRule";
export class OptionsNormalizer {
/**
* @type {IObfuscatorOptions}
*/
private static DISABLED_UNICODE_ARRAY_OPTIONS: IObfuscatorOptions = {
encodeUnicodeLiterals: false,
rotateUnicodeArray: false,
unicodeArray: false,
unicodeArrayThreshold: 0,
wrapUnicodeArrayCalls: false
};
/**
* @type {IObfuscatorOptions}
*/
private static SELF_DEFENDING_OPTIONS: IObfuscatorOptions = {
compact: true,
selfDefending: true
};
/**
* @type {TOptionsNormalizerRule[]}
*/
private static normalizerRules: TOptionsNormalizerRule[] = [
OptionsNormalizer.unicodeArrayRule,
OptionsNormalizer.unicodeArrayThresholdRule,
OptionsNormalizer.selfDefendingRule
];
/**
* @param options
* @returns {IObfuscatorOptions}
*/
public static normalizeOptions (options: IObfuscatorOptions): IObfuscatorOptions {
let normalizedOptions: IObfuscatorOptions = Object.assign({}, options);
for (let normalizerRule of OptionsNormalizer.normalizerRules) {
normalizedOptions = normalizerRule(normalizedOptions);
}
return normalizedOptions;
}
/**
* @param options
* @returns {IObfuscatorOptions}
*/
private static selfDefendingRule (options: IObfuscatorOptions): IObfuscatorOptions {
if (options.selfDefending) {
Object.assign(options, OptionsNormalizer.SELF_DEFENDING_OPTIONS);
}
return options;
}
/**
* @param options
* @returns {IObfuscatorOptions}
*/
private static unicodeArrayRule (options: IObfuscatorOptions): IObfuscatorOptions {
if (!options.unicodeArray) {
Object.assign(options, OptionsNormalizer.DISABLED_UNICODE_ARRAY_OPTIONS);
}
return options;
}
/**
* @param options
* @returns {IObfuscatorOptions}
*/
private static unicodeArrayThresholdRule (options: IObfuscatorOptions): IObfuscatorOptions {
if (options.unicodeArrayThreshold === 0) {
Object.assign(options, OptionsNormalizer.DISABLED_UNICODE_ARRAY_OPTIONS);
}
return options;
}
}