23 lines
851 B
TypeScript
23 lines
851 B
TypeScript
// base64url (RFC 4648 §5), no padding — interfaces.md's shared conventions.
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// Same implementation as extension/src/base64url.ts; duplicated rather than
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// shared across the two independent build targets.
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export function base64UrlDecode(s: string): Uint8Array {
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const unpadded = s.replace(/-/g, '+').replace(/_/g, '/');
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const padded = unpadded + '='.repeat((4 - (unpadded.length % 4)) % 4);
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const binary = atob(padded);
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const bytes = new Uint8Array(binary.length);
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for (let i = 0; i < binary.length; i++) {
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bytes[i] = binary.charCodeAt(i);
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}
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return bytes;
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}
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export function base64UrlEncode(bytes: Uint8Array): string {
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let binary = '';
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for (const byte of bytes) {
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binary += String.fromCharCode(byte);
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}
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return btoa(binary).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
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}
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