Jon Staab
113 lines
2.8 KiB
TypeScript
113 lines
2.8 KiB
TypeScript
import {derived} from "svelte/store"
|
|
import {cached, hash, omit, equals, assoc} from "@welshman/lib"
|
|
import {withGetter, synced} from "@welshman/store"
|
|
import {Nip46Broker, Nip46Signer, Nip07Signer, Nip01Signer, Nip55Signer} from "@welshman/signer"
|
|
|
|
export type SessionNip01 = {
|
|
method: "nip01"
|
|
pubkey: string
|
|
secret: string
|
|
}
|
|
|
|
export type SessionNip07 = {
|
|
method: "nip07"
|
|
pubkey: string
|
|
}
|
|
|
|
export type SessionNip46 = {
|
|
method: "nip46"
|
|
pubkey: string
|
|
secret: string
|
|
handler: {
|
|
pubkey: string
|
|
relays: string[]
|
|
}
|
|
}
|
|
|
|
export type SessionNip55 = {
|
|
method: "nip55"
|
|
pubkey: string
|
|
signer: string
|
|
}
|
|
|
|
export type SessionPubkey = {
|
|
method: "pubkey"
|
|
pubkey: string
|
|
}
|
|
|
|
export type SessionAnyMethod =
|
|
| SessionNip01
|
|
| SessionNip07
|
|
| SessionNip46
|
|
| SessionNip55
|
|
| SessionPubkey
|
|
|
|
export type Session = SessionAnyMethod & Record<string, any>
|
|
|
|
export const pubkey = withGetter(synced<string | null>("pubkey", null))
|
|
|
|
export const sessions = withGetter(synced<Record<string, Session>>("sessions", {}))
|
|
|
|
export const session = withGetter(
|
|
derived([pubkey, sessions], ([$pubkey, $sessions]) => ($pubkey ? $sessions[$pubkey] : null)),
|
|
)
|
|
|
|
export const getSession = (pubkey: string) => sessions.get()[pubkey]
|
|
|
|
export const addSession = (session: Session) => {
|
|
sessions.update(assoc(session.pubkey, session))
|
|
pubkey.set(session.pubkey)
|
|
}
|
|
|
|
export const putSession = (session: Session) => {
|
|
if (!equals(getSession(session.pubkey), session)) {
|
|
sessions.update(assoc(session.pubkey, session))
|
|
}
|
|
}
|
|
|
|
export const updateSession = (pubkey: string, f: (session: Session) => Session) =>
|
|
putSession(f(getSession(pubkey)))
|
|
|
|
export const dropSession = (pubkey: string) =>
|
|
sessions.update($sessions => omit([pubkey], $sessions))
|
|
|
|
export const nip46Perms = "sign_event:22242,nip04_encrypt,nip04_decrypt,nip44_encrypt,nip44_decrypt"
|
|
|
|
export const getSigner = cached({
|
|
maxSize: 100,
|
|
getKey: ([session]: [Session | null]) => hash(String(JSON.stringify(session))),
|
|
getValue: ([session]: [Session | null]) => {
|
|
switch (session?.method) {
|
|
case "nip07":
|
|
return new Nip07Signer()
|
|
case "nip01":
|
|
return new Nip01Signer(session.secret!)
|
|
case "nip46":
|
|
return new Nip46Signer(
|
|
Nip46Broker.get({
|
|
clientSecret: session.secret!,
|
|
relays: session.handler!.relays,
|
|
signerPubkey: session.handler!.pubkey,
|
|
}),
|
|
)
|
|
case "nip55":
|
|
return new Nip55Signer(session.signer!)
|
|
default:
|
|
return null
|
|
}
|
|
},
|
|
})
|
|
|
|
export const signer = withGetter(derived(session, getSigner))
|
|
|
|
export const nip44EncryptToSelf = (payload: string) => {
|
|
const $pubkey = pubkey.get()
|
|
const $signer = signer.get()
|
|
|
|
if (!$signer) {
|
|
throw new Error("Unable to encrypt to self without valid signer")
|
|
}
|
|
|
|
return $signer.nip44.encrypt($pubkey!, payload)
|
|
}
|