Files
nostash/Shared (Extension)/Resources/background.js
2023-01-27 23:27:48 -05:00

151 lines
4.0 KiB
JavaScript

import {
generatePrivateKey,
getPublicKey,
signEvent,
nip04,
nip19,
} from 'nostr-tools';
const storage = browser.storage.local;
const log = msg => console.log('Background: ', msg);
browser.runtime.onInstalled.addListener(async ({ reason }) => {
// I would like to be able to skip this for development purposes
let ignoreHook = (await storage.get({ ignoreInstallHook: false }))
.ignoreInstallHook;
if (ignoreHook === true) {
return;
}
if (['install'].includes(reason)) {
browser.tabs.create({
url: 'https://ursus.camp/nostore',
});
}
});
browser.runtime.onMessage.addListener(
async (message, _sender, sendResponse) => {
log(message);
switch (message.kind) {
// General
case 'log':
console.log(
message.payload.module ? `${module}: ` : '',
message.payload.msg
);
break;
case 'generatePrivateKey':
sendResponse(generatePrivateKey());
break;
case 'savePrivateKey':
await savePrivateKey(message.payload);
break;
case 'getNpub':
let npub = await getNpub(message.payload);
sendResponse(npub);
break;
case 'getNsec':
let nsec = await getNsec(message.payload);
sendResponse(nsec);
break;
case 'getPubKey':
let pubKey = await getPubKey();
sendResponse(pubKey);
break;
// window.nostr
case 'signEvent':
let event = await signEvent_(message.payload);
sendResponse(event);
break;
case 'nip04.encrypt':
let cipherText = await nip04Encrypt(message.payload);
sendResponse(cipherText);
break;
case 'nip04.decrypt':
let plainText = await nip04Decrypt(message.payload);
sendResponse(plainText);
break;
case 'getRelays':
let relays = await getRelays();
sendResponse(relays);
break;
default:
break;
}
return false;
}
);
// Options
async function savePrivateKey([index, privKey]) {
if (privKey.startsWith('nsec')) {
privKey = nip19.decode(privKey).data;
}
let profiles = await get('profiles');
profiles[index].privKey = privKey;
await storage.set({ profiles });
}
async function getNsec(index) {
let profile = await getProfile(index);
let nsec = nip19.nsecEncode(profile.privKey);
return nsec;
}
async function getNpub(index) {
let profile = await getProfile(index);
let pubKey = getPublicKey(profile.privKey);
let npub = nip19.npubEncode(pubKey);
return npub;
}
async function getPrivKey() {
let profile = await currentProfile();
return profile.privKey;
}
async function getPubKey() {
let privKey = await getPrivKey();
let pubKey = getPublicKey(privKey);
return pubKey;
}
async function currentProfile() {
let index = await getProfileIndex();
let profiles = await get('profiles');
let currentProfile = profiles[index];
currentProfile.nsecKey = nip19.nsecEncode(currentProfile.privKey);
return profiles[index];
}
async function signEvent_(event) {
event = { ...event };
let privKey = await getPrivKey();
event.sig = signEvent(event, privKey);
return event;
}
async function nip04Encrypt({ pubKey, plainText }) {
let privKey = await getPrivKey();
return nip04.encrypt(privKey, pubKey, plainText);
}
async function nip04Decrypt({ pubKey, cipherText }) {
let privKey = await getPrivKey();
return nip04.decrypt(privKey, pubKey, cipherText);
}
// Utilities
async function get(item) {
return (await storage.get(item))[item];
}
async function getProfile(index) {
let profiles = await get('profiles');
return profiles[index];
}