Split configuration into low and high traffic files

Also, we're now handling config ourselves instead of using
electron-config and config dependencies.

app/base_config.js

@@ -0,0 +1,58 @@
+const fs = require('fs');
+
+const _ = require('lodash');
+
+const ENCODING = 'utf8';
+
+module.exports = {
+  start,
+};
+
+function start(name, targetPath) {
+  let cachedValue = null;
+
+  try {
+    const text = fs.readFileSync(targetPath, ENCODING);
+    cachedValue = JSON.parse(text);
+    console.log(`config/get: Successfully read ${name} config file`);
+
+    if (!cachedValue) {
+      console.log(
+        `config/get: ${name} config value was falsy, cache is now empty object`
+      );
+      cachedValue = Object.create(null);
+    }
+  } catch (error) {
+    if (error.code !== 'ENOENT') {
+      throw error;
+    }
+
+    console.log(
+      `config/get: Did not find ${name} config file, cache is now empty object`
+    );
+    cachedValue = Object.create(null);
+  }
+
+  function get(keyPath) {
+    return _.get(cachedValue, keyPath);
+  }
+
+  function set(keyPath, value) {
+    _.set(cachedValue, keyPath, value);
+    console.log(`config/set: Saving ${name} config to disk`);
+    const text = JSON.stringify(cachedValue, null, '  ');
+    fs.writeFileSync(targetPath, text, ENCODING);
+  }
+
+  function remove() {
+    console.log(`config/remove: Deleting ${name} config from disk`);
+    fs.unlinkSync(targetPath);
+    cachedValue = Object.create(null);
+  }
+
+  return {
+    set,
+    get,
+    remove,
+  };
+}

app/ephemeral_config.js

@@ -0,0 +1,12 @@
+const path = require('path');
+
+const { app } = require('electron');
+
+const { start } = require('./base_config');
+
+const userDataPath = app.getPath('userData');
+const targetPath = path.join(userDataPath, 'ephemeral.json');
+
+const ephemeralConfig = start('ephemeral', targetPath);
+
+module.exports = ephemeralConfig;

app/sql_channel.js

@@ -1,6 +1,7 @@
 const electron = require('electron');
 const sql = require('./sql');
-const { remove } = require('./key_management');
+const { remove: removeUserConfig } = require('./user_config');
+const { remove: removeEphemeralConfig } = require('./ephemeral_config');
 
 const { ipcMain } = electron;
 
@@ -41,7 +42,8 @@ function initialize() {
 
   ipcMain.on(ERASE_SQL_KEY, async event => {
     try {
-      remove();
+      removeUserConfig();
+      removeEphemeralConfig();
       event.sender.send(`${ERASE_SQL_KEY}-done`);
     } catch (error) {
       const errorForDisplay = error && error.stack ? error.stack : error;

app/user_config.js

@@ -1,11 +1,11 @@
 const path = require('path');
 
 const { app } = require('electron');
-const ElectronConfig = require('electron-config');
 
+const { start } = require('./base_config');
 const config = require('./config');
 
-// use a separate data directory for development
+// Use separate data directory for development
 if (config.has('storageProfile')) {
   const userData = path.join(
     app.getPath('appData'),
@@ -17,7 +17,9 @@ if (config.has('storageProfile')) {
 
 console.log(`userData: ${app.getPath('userData')}`);
 
-// this needs to be below our update to the appData path
-const userConfig = new ElectronConfig();
+const userDataPath = app.getPath('userData');
+const targetPath = path.join(userDataPath, 'config.json');
+
+const userConfig = start('user', targetPath);
 
 module.exports = userConfig;

js/views/clear_data_view.js

@@ -34,27 +34,30 @@
       this.render();
 
       try {
+        await Database.clear();
         await Database.close();
-        window.log.info('All database connections closed. Starting delete.');
+        window.log.info(
+          'All database connections closed. Starting database drop.'
+        );
+        await Database.drop();
       } catch (error) {
         window.log.error(
-          'Something went wrong closing all database connections.'
+          'Something went wrong deleting IndexedDB data then dropping database.'
         );
       }
 
       this.clearAllData();
     },
     async clearAllData() {
       try {
-        await Promise.all([
-          Logs.deleteAll(),
-          Database.drop(),
-          window.Signal.Data.removeAll(),
-          window.Signal.Data.removeOtherData(),
-        ]);
+        await Logs.deleteAll();
 
+        // SQLCipher
+        await window.Signal.Data.removeAll();
         await window.Signal.Data.close();
         await window.Signal.Data.removeDB();
+
+        await window.Signal.Data.removeOtherData();
       } catch (error) {
         window.log.error(
           'Something went wrong deleting all data:',

main.js

@@ -4,6 +4,7 @@ const path = require('path');
 const url = require('url');
 const os = require('os');
 const fs = require('fs');
+const crypto = require('crypto');
 
 const _ = require('lodash');
 const pify = require('pify');
@@ -62,7 +63,7 @@ const attachments = require('./app/attachments');
 const attachmentChannel = require('./app/attachment_channel');
 const autoUpdate = require('./app/auto_update');
 const createTrayIcon = require('./app/tray_icon');
-const keyManagement = require('./app/key_management');
+const ephemeralConfig = require('./app/ephemeral_config');
 const logging = require('./app/logging');
 const sql = require('./app/sql');
 const sqlChannels = require('./app/sql_channel');
@@ -115,7 +116,14 @@ if (!process.mas) {
   }
 }
 
-let windowConfig = userConfig.get('window');
+const windowFromUserConfig = userConfig.get('window');
+const windowFromEphemeral = ephemeralConfig.get('window');
+let windowConfig = windowFromEphemeral || windowFromUserConfig;
+if (windowFromUserConfig) {
+  userConfig.set('window', null);
+  ephemeralConfig.set('window', windowConfig);
+}
+
 const loadLocale = require('./app/locale').load;
 
 // Both of these will be set after app fires the 'ready' event
@@ -285,7 +293,7 @@ function createWindow() {
       'Updating BrowserWindow config: %s',
       JSON.stringify(windowConfig)
     );
-    userConfig.set('window', windowConfig);
+    ephemeralConfig.set('window', windowConfig);
   }
 
   const debouncedCaptureStats = _.debounce(captureAndSaveWindowStats, 500);
@@ -619,7 +627,15 @@ app.on('ready', async () => {
     locale = loadLocale({ appLocale, logger });
   }
 
-  const key = keyManagement.initialize({ userConfig });
+  let key = userConfig.get('key');
+  if (!key) {
+    console.log(
+      'key/initialize: Generating new encryption key, since we did not find it on disk'
+    );
+    // https://www.zetetic.net/sqlcipher/sqlcipher-api/#key
+    key = crypto.randomBytes(32).toString('hex');
+    userConfig.set('key', key);
+  }
   await sql.initialize({ configDir: userDataPath, key });
   await sqlChannels.initialize();
 

package.json

@@ -40,6 +40,7 @@
     "styleguide": "styleguidist server"
   },
   "dependencies": {
+    "@journeyapps/sqlcipher": "https://github.com/scottnonnenberg-signal/node-sqlcipher.git#ed4f4d179ac010c6347b291cbd4c2ebe5c773741",
     "@sindresorhus/is": "^0.8.0",
     "archiver": "^2.1.1",
     "backbone": "^1.3.3",
@@ -49,10 +50,8 @@
     "bunyan": "^1.8.12",
     "classnames": "^2.2.5",
     "config": "^1.28.1",
-    "electron-config": "^1.0.0",
     "electron-editor-context-menu": "^1.1.1",
     "electron-is-dev": "^0.3.0",
-    "@journeyapps/sqlcipher": "https://github.com/scottnonnenberg-signal/node-sqlcipher.git#ed4f4d179ac010c6347b291cbd4c2ebe5c773741",
     "electron-unhandled": "https://github.com/scottnonnenberg-signal/electron-unhandled.git#7496187472aa561d39fcd4c843a54ffbef0a388c",
     "electron-updater": "^2.21.10",
     "emoji-datasource": "4.0.0",

yarn.lock

@@ -1647,15 +1647,6 @@ concat-stream@^1.5.0:
     readable-stream "^2.2.2"
     typedarray "^0.0.6"
 
-conf@^1.0.0:
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/conf/-/conf-1.1.1.tgz#238d0a3090ac4916ed2d40c7e81d7a11667bc7ba"
-  dependencies:
-    dot-prop "^4.1.0"
-    env-paths "^1.0.0"
-    make-dir "^1.0.0"
-    pkg-up "^2.0.0"
-
 config@^1.28.1:
   version "1.28.1"
   resolved "https://registry.yarnpkg.com/config/-/config-1.28.1.tgz#7625d2a1e4c90f131d8a73347982d93c3873282d"
@@ -2423,12 +2414,6 @@ electron-chromedriver@~1.8.0:
     electron-download "^4.1.0"
     extract-zip "^1.6.5"
 
-electron-config@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/electron-config/-/electron-config-1.0.0.tgz#069d044cc794f04784ae72f12916725d3c8c39af"
-  dependencies:
-    conf "^1.0.0"
-
 electron-download-tf@4.3.4:
   version "4.3.4"
   resolved "https://registry.yarnpkg.com/electron-download-tf/-/electron-download-tf-4.3.4.tgz#b03740b2885aa2ad3f8784fae74df427f66d5165"
@@ -6428,12 +6413,6 @@ pkg-dir@^2.0.0:
   dependencies:
     find-up "^2.1.0"
 
-pkg-up@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/pkg-up/-/pkg-up-2.0.0.tgz#c819ac728059a461cab1c3889a2be3c49a004d7f"
-  dependencies:
-    find-up "^2.1.0"
-
 pkginfo@0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/pkginfo/-/pkginfo-0.4.0.tgz#349dbb7ffd38081fcadc0853df687f0c7744cd65"