36 lines
955 B
JavaScript
36 lines
955 B
JavaScript
'use strict';
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const UUID = require('mongodb/lib/bson').UUID;
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const UUID_FORMAT = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/i;
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module.exports = function castUUID(value) {
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if (value == null) {
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return value;
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}
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if (value instanceof UUID) {
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return value;
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}
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if (typeof value === 'string') {
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if (UUID_FORMAT.test(value)) {
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return new UUID(value);
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} else {
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throw new Error(`"${value}" is not a valid UUID string`);
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}
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}
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// Re: gh-647 and gh-3030, we're ok with casting using `toString()`
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// **unless** its the default Object.toString, because "[object Object]"
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// doesn't really qualify as useful data
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if (value.toString && value.toString !== Object.prototype.toString) {
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if (UUID_FORMAT.test(value.toString())) {
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return new UUID(value.toString());
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}
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}
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throw new Error(`"${value}" cannot be casted to a UUID`);
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};
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module.exports.UUID_FORMAT = UUID_FORMAT;
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