Files
smesh/src/providers/NostrProvider/bunker.signer.ts
2025-01-08 10:03:29 +08:00

55 lines
1.4 KiB
TypeScript

import { ISigner, TDraftEvent } from '@/types'
import { bytesToHex, hexToBytes } from '@noble/hashes/utils'
import { generateSecretKey } from 'nostr-tools'
import { BunkerSigner as NBunkerSigner, parseBunkerInput } from 'nostr-tools/nip46'
export class BunkerSigner implements ISigner {
signer: NBunkerSigner | null = null
private clientSecretKey: Uint8Array
private pubkey: string | null = null
constructor(clientSecretKey?: string) {
this.clientSecretKey = clientSecretKey ? hexToBytes(clientSecretKey) : generateSecretKey()
}
async login(bunker: string): Promise<string> {
const bunkerPointer = await parseBunkerInput(bunker)
if (!bunkerPointer) {
throw new Error('Invalid bunker')
}
this.signer = new NBunkerSigner(this.clientSecretKey, bunkerPointer, {
onauth: (url) => {
window.open(url, '_blank')
}
})
await this.signer.connect()
return await this.signer.getPublicKey()
}
async getPublicKey() {
if (!this.signer) {
throw new Error('Not logged in')
}
if (!this.pubkey) {
this.pubkey = await this.signer.getPublicKey()
}
return this.pubkey
}
async signEvent(draftEvent: TDraftEvent) {
if (!this.signer) {
throw new Error('Not logged in')
}
const pubkey = await this.getPublicKey()
return this.signer.signEvent({
...draftEvent,
pubkey
})
}
getClientSecretKey() {
return bytesToHex(this.clientSecretKey)
}
}