mobile: add async storage & encryption

apps/mobile/app/common/database/encryption.js

@@ -126,6 +126,18 @@ export async function decrypt(password, data) {
   return await Sodium.decrypt(password, _data);
 }
 
+export async function decryptMulti(password, data) {
+  if (!password.password && !password.key) return undefined;
+  if (password.password && password.password === "" && !password.key)
+    return undefined;
+
+  data = data.map((d) => {
+    d.output = "plain";
+    return d;
+  });
+  return await Sodium.decryptMulti(password, data);
+}
+
 export function parseAlgorithm(alg) {
   if (!alg) return {};
   const [enc, kdf, compressed, compressionAlg, base64variant] = alg.split("-");

apps/mobile/app/common/database/storage.js

@@ -27,11 +27,15 @@ import {
   getCryptoKey,
   getRandomBytes,
   hash,
-  removeCryptoKey
+  removeCryptoKey,
+  decryptMulti
 } from "./encryption";
 import { MMKV } from "./mmkv";
 
 export class KV {
+  /**
+   * @type {typeof MMKV}
+   */
   storage = null;
   constructor(storage) {
     this.storage = storage;
@@ -60,18 +64,24 @@ export class KV {
     if (keys.length <= 0) {
       return [];
     } else {
-      let data = await this.storage.getMultipleItemsAsync(keys.slice());
+      try {
+        let data = await this.storage.getMultipleItemsAsync(
+          keys.slice(),
+          "object"
+        );
+        return data.map(([key, value]) => {
+          let obj;
+          try {
+            obj = JSON.parse(value);
+          } catch (e) {
+            obj = value;
+          }
 
-      return data.map(([key, value]) => {
-        let obj;
-        try {
-          obj = JSON.parse(value);
-        } catch (e) {
-          obj = value;
-        }
-
-        return [key, obj];
-      });
+          return [key, obj];
+        });
+      } catch (e) {
+        console.log(e);
+      }
     }
   }
 
@@ -96,6 +106,10 @@ export class KV {
     );
     return keys;
   }
+
+  async writeMulti(items) {
+    return this.storage.setMultipleItemsAsync(items, "object");
+  }
 }
 
 const DefaultStorage = new KV(MMKV);
@@ -129,8 +143,10 @@ export default {
   remove: (key) => DefaultStorage.remove(key),
   clear: () => DefaultStorage.clear(),
   getAllKeys: () => DefaultStorage.getAllKeys(),
+  writeMulti: (items) => DefaultStorage.writeMulti(items),
   encrypt,
   decrypt,
+  decryptMulti,
   getRandomBytes,
   checkAndCreateDir,
   requestPermission,