jose/src/runtime/browser/base64url.ts
2020-11-26 18:53:01 +01:00

25 lines
788 B
TypeScript

import { encoder, decoder } from '../../lib/buffer_utils.js'
import globalThis from './global.js'
export const encode = (input: Uint8Array | string) => {
let unencoded = input
if (typeof unencoded === 'string') {
unencoded = encoder.encode(unencoded)
}
const base64string = globalThis.btoa(String.fromCharCode.apply(0, [...unencoded]))
return base64string.replace(/=/g, '').replace(/\+/g, '-').replace(/\//g, '_')
}
export const decode = (input: Uint8Array | string) => {
let encoded = input
if (encoded instanceof Uint8Array) {
encoded = decoder.decode(encoded)
}
encoded = encoded.replace(/-/g, '+').replace(/_/g, '/').replace(/\s/g, '')
return new Uint8Array(
globalThis
.atob(encoded)
.split('')
.map((c) => c.charCodeAt(0)),
)
}