35 lines
921 B
TypeScript
35 lines
921 B
TypeScript
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import * as crypto from "crypto";
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export async function sleep(ms: number): Promise<void> {
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return await new Promise(resolve => {
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setTimeout(() => resolve(), ms);
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});
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}
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export abstract class WrappingError extends Error {
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public readonly cause?: Error;
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protected constructor(message: string, cause?: Error) {
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super(message);
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this.cause = cause;
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if (cause !== undefined) {
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this.stack = (this.stack || '') + `\n> Caused by: ${cause.stack}`;
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}
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}
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get name(): string {
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return this.constructor.name;
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}
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}
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export function cryptoRandomDictionary(size: number, dictionary: string): string {
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const randomBytes = crypto.randomBytes(size);
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const output = new Array(size);
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for (let i = 0; i < size; i++) {
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output[i] = dictionary[Math.floor((randomBytes[i] / 255) * dictionary.length)];
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}
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return output.join('');
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}
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