src/lib/useImpliedTicket.ts · bridge

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bridge/src/lib/useImpliedTicket.ts

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1import ob from 'urbit-ob';

2import { ensurePatFormat, ensureSigPrefix } from 'form/formatters';

3import { patp2dec } from './patp2dec';

5/**

6 * pull the implied ticket and point from the #hash in the url

7 */

8// e.g., https://bridge.urbit.org/#widweb-tipfep-sabnux-nispec-sampel-palnet

10// Example tickets:

11// ~widweb-tipfep-sabnux-nispec

13// Example tickets + points (Activation Flow):

14// ~widweb-tipfep-sabnux-nispec-sampel

15// ~widweb-tipfep-sabnux-nispec-sampel-palnet

16const VALID_TICKET_REGEX = /^~(?:[[a-z]{6}-){3}[a-z]{6}/;

17const VALID_TICKET_AND_POINT_REGEX = /^~([a-z]{6}-){4}([a-z-]{6,13})/;

18const CAPTURE_TICKET_REGEX = /^~((?:[[a-z]{6}-){3}[a-z]{6})/;

19const CAPTURE_POINT_REGEX = /^~(?:(?:[[a-z]{6}-){3}[a-z]{6}-{1})([a-z-]{6,13})/;

21export default function useImpliedTicket() {

22 const hash = window.location.hash.slice(1);

23 const pat = ensurePatFormat(hash);

24 const impliedTicket = VALID_TICKET_REGEX.test(pat)

25 ? pat.match(CAPTURE_TICKET_REGEX)![0]

26 : null;

28 const impliedPatp = VALID_TICKET_AND_POINT_REGEX.test(pat)

29 ? ensureSigPrefix(pat.match(CAPTURE_POINT_REGEX)![1])

30 : null;

32 return {

33 impliedAzimuthPoint:

34 impliedPatp && ob.isValidPatq(impliedPatp) ? patp2dec(impliedPatp) : null,

35 impliedPatp:

36 impliedPatp && ob.isValidPatq(impliedPatp) ? impliedPatp : null,

37 impliedTicket:

38 impliedTicket && ob.isValidPatq(impliedTicket) ? impliedTicket : null,

39 };