54 lines
1.3 KiB
TypeScript
54 lines
1.3 KiB
TypeScript
import { ISigner, TDraftEvent } from '@/types'
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import { finalizeEvent, getPublicKey as nGetPublicKey, nip04, nip19 } from 'nostr-tools'
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export class NsecSigner implements ISigner {
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private privkey: Uint8Array | null = null
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private pubkey: string | null = null
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login(nsecOrPrivkey: string | Uint8Array) {
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let privkey
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if (typeof nsecOrPrivkey === 'string') {
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const { type, data } = nip19.decode(nsecOrPrivkey)
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if (type !== 'nsec') {
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throw new Error('invalid nsec')
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}
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privkey = data
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} else {
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privkey = nsecOrPrivkey
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}
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this.privkey = privkey
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this.pubkey = nGetPublicKey(privkey)
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return this.pubkey
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}
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async getPublicKey() {
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if (!this.pubkey) {
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throw new Error('Not logged in')
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}
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return this.pubkey
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}
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async signEvent(draftEvent: TDraftEvent) {
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if (!this.privkey) {
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throw new Error('Not logged in')
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}
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return finalizeEvent(draftEvent, this.privkey)
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}
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async nip04Encrypt(pubkey: string, plainText: string) {
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if (!this.privkey) {
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throw new Error('Not logged in')
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}
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return nip04.encrypt(this.privkey, pubkey, plainText)
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}
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async nip04Decrypt(pubkey: string, cipherText: string) {
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if (!this.privkey) {
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throw new Error('Not logged in')
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}
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return nip04.decrypt(this.privkey, pubkey, cipherText)
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}
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}
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