Files
lume/src/libs/ndk/instance.ts
2023-11-03 15:38:58 +07:00

142 lines
3.9 KiB
TypeScript

import NDK, { NDKNip46Signer, NDKPrivateKeySigner } from '@nostr-dev-kit/ndk';
import { ndkAdapter } from '@nostr-fetch/adapter-ndk';
import { message } from '@tauri-apps/plugin-dialog';
import { fetch } from '@tauri-apps/plugin-http';
import { NostrFetcher } from 'nostr-fetch';
import { useEffect, useMemo, useState } from 'react';
import NDKCacheAdapterTauri from '@libs/ndk/cache';
import { useStorage } from '@libs/storage/provider';
export const NDKInstance = () => {
const [ndk, setNDK] = useState<NDK | undefined>(undefined);
const [relayUrls, setRelayUrls] = useState<string[]>([]);
const { db } = useStorage();
const fetcher = useMemo(
() => (ndk ? NostrFetcher.withCustomPool(ndkAdapter(ndk)) : null),
[ndk]
);
// TODO: fully support NIP-11
async function getExplicitRelays() {
try {
// get relays
const relays = await db.getExplicitRelayUrls();
const onlineRelays = new Set(relays);
for (const relay of relays) {
try {
const url = new URL(relay);
const res = await fetch(`https://${url.hostname}`, {
method: 'GET',
headers: {
Accept: 'application/nostr+json',
},
});
if (!res.ok) {
console.info(`${relay} is not working, skipping...`);
onlineRelays.delete(relay);
}
} catch {
console.warn(`${relay} is not working, skipping...`);
onlineRelays.delete(relay);
}
}
// return all online relays
return [...onlineRelays];
} catch (e) {
console.error(e);
}
}
async function getSigner(instance: NDK) {
if (!db.account) return null;
const localSignerPrivkey = await db.secureLoad(db.account.pubkey + '-bunker');
const userPrivkey = await db.secureLoad(db.account.pubkey);
// NIP-46 Signer
if (localSignerPrivkey) {
const localSigner = new NDKPrivateKeySigner(localSignerPrivkey);
const remoteSigner = new NDKNip46Signer(instance, db.account.id, localSigner);
await remoteSigner.blockUntilReady();
return remoteSigner;
}
// Privkey Signer
if (userPrivkey) {
return new NDKPrivateKeySigner(userPrivkey);
}
}
async function initNDK() {
const outboxSetting = await db.getSettingValue('outbox');
const explicitRelayUrls = await getExplicitRelays();
const dexieAdapter = new NDKCacheAdapterTauri(db);
const instance = new NDK({
explicitRelayUrls,
cacheAdapter: dexieAdapter,
outboxRelayUrls: ['wss://purplepag.es'],
enableOutboxModel: outboxSetting === '1',
});
try {
// connect
await instance.connect(2000);
// add signer
const signer = await getSigner(instance);
instance.signer = signer;
// update account's metadata
if (db.account) {
const circleSetting = await db.getSettingValue('circles');
const user = instance.getUser({ pubkey: db.account.pubkey });
const follows = await user.follows();
const relayList = await user.relayList();
const followsAsArr = [];
follows.forEach((user) => {
followsAsArr.push(user.pubkey);
});
// update user's follows
await db.updateAccount('follows', JSON.stringify(followsAsArr));
if (circleSetting !== '1')
await db.updateAccount('circles', JSON.stringify(followsAsArr));
// update user's relay list
if (relayList) {
for (const relay of relayList.relays) {
await db.createRelay(relay);
}
}
}
} catch (error) {
await message(`NDK instance init failed: ${error}`, {
title: 'Lume',
type: 'error',
});
}
setNDK(instance);
setRelayUrls(explicitRelayUrls);
}
useEffect(() => {
if (!ndk) initNDK();
}, []);
return {
ndk,
relayUrls,
fetcher,
};
};