34 lines
1.2 KiB
TypeScript
34 lines
1.2 KiB
TypeScript
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import { Buffer } from 'buffer';
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import { BSONTypeError } from './error';
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// Validation regex for v4 uuid (validates with or without dashes)
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const VALIDATION_REGEX =
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/^(?:[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|[0-9a-f]{12}4[0-9a-f]{3}[89ab][0-9a-f]{15})$/i;
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export const uuidValidateString = (str: string): boolean =>
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typeof str === 'string' && VALIDATION_REGEX.test(str);
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export const uuidHexStringToBuffer = (hexString: string): Buffer => {
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if (!uuidValidateString(hexString)) {
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throw new BSONTypeError(
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'UUID string representations must be a 32 or 36 character hex string (dashes excluded/included). Format: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" or "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx".'
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);
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}
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const sanitizedHexString = hexString.replace(/-/g, '');
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return Buffer.from(sanitizedHexString, 'hex');
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};
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export const bufferToUuidHexString = (buffer: Buffer, includeDashes = true): string =>
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includeDashes
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? buffer.toString('hex', 0, 4) +
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'-' +
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buffer.toString('hex', 4, 6) +
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'-' +
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buffer.toString('hex', 6, 8) +
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'-' +
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buffer.toString('hex', 8, 10) +
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'-' +
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buffer.toString('hex', 10, 16)
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: buffer.toString('hex');
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