74 lines
1.8 KiB
TypeScript
74 lines
1.8 KiB
TypeScript
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import { nip05, nip19, verifyEvent } from 'nostr-tools'
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import { SignedEvent } from '../types'
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/**
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* @param hexKey hex private or public key
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* @returns whether or not is key valid
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*/
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const validateHex = (hexKey: string) => {
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return hexKey.match(/^[a-f0-9]{64}$/)
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}
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/**
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* NPUB provided - it will convert NPUB to HEX
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* NIP-05 provided - it will query NIP-05 profile and return HEX key if found
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* HEX provided - it will return HEX
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*
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* @param pubKey in NPUB, NIP-05 or HEX format
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* @returns HEX format
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*/
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export const pubToHex = async (pubKey: string): Promise<string | null> => {
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// If key is NIP-05
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if (pubKey.indexOf('@') !== -1)
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return Promise.resolve(
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(await nip05.queryProfile(pubKey).then((res) => res?.pubkey)) || null
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)
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// If key is NPUB
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if (pubKey.startsWith('npub')) {
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try {
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return nip19.decode(pubKey).data as string
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} catch (error) {
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return Promise.resolve(null)
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}
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}
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// valid hex key
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if (validateHex(pubKey)) return Promise.resolve(pubKey)
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// Not a valid hex key
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return Promise.resolve(null)
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}
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/**
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* If NSEC key is provided function will convert it to HEX
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* If HEX key Is provided function will validate the HEX format and return
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*
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* @param nsec or private key in HEX format
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*/
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export const nsecToHex = (nsec: string): string | null => {
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// If key is NSEC
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if (nsec.startsWith('nsec')) {
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try {
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return nip19.decode(nsec).data as string
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} catch (error) {
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return null
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}
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}
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// since it's not NSEC key we check if it's a valid hex key
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if (validateHex(nsec)) return nsec
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return null
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}
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export const verifySignedEvent = (event: SignedEvent) => {
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const isGood = verifyEvent(event)
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if (!isGood) {
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throw new Error(
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'Signed event did not pass verification. Check sig, id and pubkey.'
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)
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}
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}
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