20 lines
839 B
JavaScript
20 lines
839 B
JavaScript
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/** RFC4122 v4-ish GUID, using crypto when available. Shared by customer and admin session creation. */
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export function generateGuid() {
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if (globalThis.crypto?.randomUUID) {
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return globalThis.crypto.randomUUID();
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}
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const bytes = new Uint8Array(16);
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if (globalThis.crypto?.getRandomValues) {
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globalThis.crypto.getRandomValues(bytes);
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}
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else {
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for (let index = 0; index < bytes.length; index++) {
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bytes[index] = Math.floor(Math.random() * 256);
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}
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}
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bytes[6] = (bytes[6] & 0x0f) | 0x40;
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bytes[8] = (bytes[8] & 0x3f) | 0x80;
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const hex = Array.from(bytes, byte => byte.toString(16).padStart(2, '0'));
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return `${hex.slice(0, 4).join('')}-${hex.slice(4, 6).join('')}-${hex.slice(6, 8).join('')}-${hex.slice(8, 10).join('')}-${hex.slice(10, 16).join('')}`;
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}
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