tethys.backend/providers/HashDriver/helpers.ts

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2024-03-14 19:25:27 +00:00
import { type ScryptOptions } from 'node:crypto';
// export declare const MAX_UINT32: number;
// export declare const MAX_UINT24: number;
import { promisify } from 'node:util';
import { randomBytes, scrypt } from 'node:crypto';
import phc from '@phc/format';
/**
* Validates a number to be within a given range.
*/
export class RangeValidator {
// static validate(label: string, value: unknown, range: [number, number]): void;
static validate(label: string, value: unknown, range: [number, number]): void {
if (typeof value !== 'number' || !Number.isInteger(value)) {
throw new TypeError(`The "${label}" option must be an integer`);
}
const [min, max] = range;
if (value < min || value > max) {
throw new TypeError(`The "${label}" option must be in the range (${min} <= ${label} <= ${max})`);
}
}
}
/**
* Validates a value to be one of the allowed values
*/
export class EnumValidator {
// static validate(label: string, value: unknown, allowedValues: any[]): void;
static validate(label: string, value: unknown, allowedValues: any[]): void {
if (!allowedValues.includes(value)) {
throw new TypeError(`The "${label}" option must be one of: ${allowedValues}`);
}
}
}
/**
* Async function to generate random bytes
*/
// export declare const randomBytesAsync: (arg1: number) => Promise<Buffer>;
export const randomBytesAsync: (arg1: number) => Promise<Buffer> = promisify(randomBytes);
/**
* Async version of scrypt.
*/
// export declare const scryptAsync: (arg1: string, arg2: Buffer, arg3: number, arg4: ScryptOptions) => Promise<Buffer>;
export const scryptAsync: (arg1: string, arg2: Buffer, arg3: number, arg4: ScryptOptions) => Promise<Buffer> = promisify(scrypt);
export class PhcFormatter {
/**
* Serialize salt and hash with predefined options.
*/
serialize(salt: Buffer, hash: Buffer, options: any): string {
return phc.serialize({
id: options.id,
version: options.version,
params: options.params,
salt,
hash,
});
}
/**
* Deserialize a PHC string to an object
*/
deserialize(phcString: string): DeserializeResult {
return phc.deserialize(phcString);
}
}