Split configuration into low and high traffic files
Also, we're now handling config ourselves instead of using electron-config and config dependencies.pull/27/head^2
Scott Nonnenberg
7 years ago
parent
f59ec92fef
commit
998c35dcb3
@ -0,0 +1,58 @@
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const fs = require('fs');
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const _ = require('lodash');
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const ENCODING = 'utf8';
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module.exports = {
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start,
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};
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function start(name, targetPath) {
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let cachedValue = null;
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try {
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const text = fs.readFileSync(targetPath, ENCODING);
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cachedValue = JSON.parse(text);
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console.log(`config/get: Successfully read ${name} config file`);
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if (!cachedValue) {
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console.log(
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`config/get: ${name} config value was falsy, cache is now empty object`
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);
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cachedValue = Object.create(null);
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}
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} catch (error) {
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if (error.code !== 'ENOENT') {
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throw error;
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}
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console.log(
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`config/get: Did not find ${name} config file, cache is now empty object`
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);
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cachedValue = Object.create(null);
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}
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function get(keyPath) {
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return _.get(cachedValue, keyPath);
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}
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function set(keyPath, value) {
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_.set(cachedValue, keyPath, value);
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console.log(`config/set: Saving ${name} config to disk`);
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const text = JSON.stringify(cachedValue, null, ' ');
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fs.writeFileSync(targetPath, text, ENCODING);
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}
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function remove() {
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console.log(`config/remove: Deleting ${name} config from disk`);
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fs.unlinkSync(targetPath);
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cachedValue = Object.create(null);
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}
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return {
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set,
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get,
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remove,
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};
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}
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@ -0,0 +1,12 @@
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const path = require('path');
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const { app } = require('electron');
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const { start } = require('./base_config');
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const userDataPath = app.getPath('userData');
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const targetPath = path.join(userDataPath, 'ephemeral.json');
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const ephemeralConfig = start('ephemeral', targetPath);
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module.exports = ephemeralConfig;
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@ -1,62 +0,0 @@
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const fs = require('fs');
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const path = require('path');
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const crypto = require('crypto');
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const { app } = require('electron');
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const ENCODING = 'utf8';
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const userDataPath = app.getPath('userData');
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const targetPath = path.join(userDataPath, 'key.txt');
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module.exports = {
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get,
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set,
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initialize,
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remove,
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};
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function get() {
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try {
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const key = fs.readFileSync(targetPath, ENCODING);
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console.log('key/get: Successfully read key file');
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return key;
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} catch (error) {
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if (error.code === 'ENOENT') {
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console.log('key/get: Could not find key file, returning null');
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return null;
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}
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throw error;
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}
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}
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function set(key) {
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console.log('key/set: Saving key to disk');
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fs.writeFileSync(targetPath, key, ENCODING);
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}
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function remove() {
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console.log('key/remove: Deleting key from disk');
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fs.unlinkSync(targetPath);
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}
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function initialize({ userConfig }) {
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const keyFromConfig = userConfig.get('key');
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const keyFromStore = get();
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let key = keyFromStore || keyFromConfig;
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if (!key) {
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console.log(
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'key/initialize: Generating new encryption key, since we did not find it on disk'
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);
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// https://www.zetetic.net/sqlcipher/sqlcipher-api/#key
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key = crypto.randomBytes(32).toString('hex');
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set(key);
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} else if (keyFromConfig) {
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set(key);
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console.log('key/initialize: Removing key from config.json');
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userConfig.delete('key');
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}
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return key;
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}
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