IPC keys

desktop/src/main/ipc.ts

@@ -28,8 +28,8 @@ import {
 } from "../services/imageProcessor";
 import {
     clearStores,
-    getEncryptionKey,
-    setEncryptionKey,
+    encryptionKey,
+    saveEncryptionKey,
 } from "../services/store";
 import {
     getElectronFilesFromGoogleZip,
@@ -100,11 +100,11 @@ export const attachIPCHandlers = () => {
 
     ipcMain.on("clearStores", () => clearStores());
 
-    ipcMain.handle("setEncryptionKey", (_, encryptionKey) =>
-        setEncryptionKey(encryptionKey),
+    ipcMain.handle("saveEncryptionKey", (_, encryptionKey) =>
+        saveEncryptionKey(encryptionKey),
     );
 
-    ipcMain.handle("getEncryptionKey", () => getEncryptionKey());
+    ipcMain.handle("encryptionKey", () => encryptionKey());
 
     // - App update
 

desktop/src/preload.ts

@@ -63,11 +63,11 @@ const openLogDirectory = (): Promise<void> =>
 
 const clearStores = () => ipcRenderer.send("clearStores");
 
-const setEncryptionKey = (encryptionKey: string): Promise<void> =>
-    ipcRenderer.invoke("setEncryptionKey", encryptionKey);
+const encryptionKey = (): Promise<string | undefined> =>
+    ipcRenderer.invoke("encryptionKey");
 
-const getEncryptionKey = (): Promise<string> =>
-    ipcRenderer.invoke("getEncryptionKey");
+const saveEncryptionKey = (encryptionKey: string): Promise<void> =>
+    ipcRenderer.invoke("saveEncryptionKey", encryptionKey);
 
 const registerForegroundEventListener = (onForeground: () => void) => {
     ipcRenderer.removeAllListeners("app-in-foreground");
@@ -305,8 +305,8 @@ contextBridge.exposeInMainWorld("electron", {
     openDirectory,
     openLogDirectory,
     clearStores,
-    getEncryptionKey,
-    setEncryptionKey,
+    encryptionKey,
+    saveEncryptionKey,
     registerForegroundEventListener,
 
     // - App update

desktop/src/services/store.ts

@@ -11,16 +11,15 @@ export const clearStores = () => {
     watchStore.clear();
 };
 
-export async function setEncryptionKey(encryptionKey: string) {
+export const saveEncryptionKey = async (encryptionKey: string) => {
     const encryptedKey: Buffer = await safeStorage.encryptString(encryptionKey);
     const b64EncryptedKey = Buffer.from(encryptedKey).toString("base64");
     safeStorageStore.set("encryptionKey", b64EncryptedKey);
-}
+};
 
-export async function getEncryptionKey(): Promise<string> {
+export const encryptionKey = async (): Promise<string | undefined> => {
     const b64EncryptedKey = safeStorageStore.get("encryptionKey");
-    if (b64EncryptedKey) {
-        const keyBuffer = Buffer.from(b64EncryptedKey, "base64");
-        return await safeStorage.decryptString(keyBuffer);
-    }
-}
+    if (!b64EncryptedKey) return undefined;
+    const keyBuffer = Buffer.from(b64EncryptedKey, "base64");
+    return await safeStorage.decryptString(keyBuffer);
+};

web/apps/photos/src/pages/index.tsx

@@ -133,9 +133,9 @@ export default function LandingPage() {
         const electron = globalThis.electron;
         if (!key && electron) {
             try {
-                key = await electron.getEncryptionKey();
+                key = await electron.encryptionKey();
             } catch (e) {
-                log.error("getEncryptionKey failed", e);
+                log.error("Failed to get encryption key from electron", e);
             }
             if (key) {
                 await saveKeyInSessionStore(

web/packages/accounts/pages/credentials.tsx

@@ -70,9 +70,9 @@ export default function Credentials({ appContext, appName }: PageProps) {
             const electron = globalThis.electron;
             if (!key && electron) {
                 try {
-                    key = await electron.getEncryptionKey();
+                    key = await electron.encryptionKey();
                 } catch (e) {
-                    log.error("getEncryptionKey failed", e);
+                    log.error("Failed to get encryption key from electron", e);
                 }
                 if (key) {
                     await saveKeyInSessionStore(

web/packages/next/types/ipc.ts

@@ -71,9 +71,19 @@ export interface Electron {
      */
     clearStores: () => void;
 
-    setEncryptionKey: (encryptionKey: string) => Promise<void>;
+    /**
+     * Return the previously saved encryption key from persintent safe storage.
+     *
+     * If no such key is found, return `undefined`.
+     *
+     * @see {@link saveEncryptionKey}.
+     */
+    encryptionKey: () => Promise<string | undefined>;
 
-    getEncryptionKey: () => Promise<string>;
+    /**
+     * Save the given {@link encryptionKey} into persistent safe storage.
+     */
+    saveEncryptionKey: (encryptionKey: string) => Promise<void>;
 
     registerForegroundEventListener: (onForeground: () => void) => void;
 

web/packages/shared/crypto/helpers.ts

@@ -103,7 +103,7 @@ export const saveKeyInSessionStore = async (
     setKey(keyType, sessionKeyAttributes);
     const electron = globalThis.electron;
     if (electron && !fromDesktop && keyType === SESSION_KEYS.ENCRYPTION_KEY) {
-        electron.setEncryptionKey(key);
+        electron.saveEncryptionKey(key);
     }
 };