Dump Signal identity keys on Signal for desktop.

index.js

// Code is adapted from https://vmois.dev/query-signal-desktop-messages-sqlite/

const os = require('os');
const fs = require('fs');
const path = require('path');
const SQL = require('@signalapp/better-sqlite3');

function getFolderPath() {
    return path.join(os.homedir(), '.config/Signal');
}


function getDBPath() {
	return path.join(getFolderPath(), 'sql/db.sqlite');
}


function getDBKey() {
	const config = path.join(getFolderPath(), 'config.json');
	return JSON.parse(fs.readFileSync(config).toString())['key'];
}

const db = SQL(getDBPath(), { readonly: false });

db.pragma(`key = "x'${getDBKey()}'"`);

var stm = db.prepare(`SELECT * FROM items WHERE id='identityKeyMap'`);

const identityKeys = JSON.parse(stm.get().json);

console.log(identityKeys);
// Prints:
// {
//   id: 'identityKeyMap',
//   value: {
//     '0f662776-d1a5-4735-ad71-83b1af6fbe20': {
//       privKey: 'REDACTED',
//       pubKey: 'BR5ez9EMLoGvQvZpnvUXsjPJjZJdK6oVWcbFCk2/KVsr'
//     },
//     'PNI:c6f0c9a6-c3f3-4d4f-aa21-3c29af12d013': {
//       privKey: 'REDACTED',
//       pubKey: 'Be/4XRZUGtOZOi9bI9pcCyCOtYpTI8jmFyUoC0DvCaJ9'
//     }
//   }
// }