[FEATURE] Mobile Vault Decryptor Functionality

app/components/Views/ImportFromSeed/index.js

@@ -29,7 +29,12 @@ import TermsAndConditions from '../TermsAndConditions';
 import zxcvbn from 'zxcvbn';
 import Icon from 'react-native-vector-icons/FontAwesome';
 import Device from '../../../util/device';
-import { failedSeedPhraseRequirements, isValidMnemonic, parseSeedPhrase } from '../../../util/validators';
+import {
+	failedSeedPhraseRequirements,
+	isValidMnemonic,
+	parseSeedPhrase,
+	parseVaultValue,
+} from '../../../util/validators';
 import { OutlinedTextField } from 'react-native-material-textfield';
 import {
 	SEED_PHRASE_HINTS,
@@ -243,7 +248,11 @@ class ImportFromSeed extends PureComponent {
 
 	onPressImport = async () => {
 		const { loading, seed, password, confirmPassword } = this.state;
-		const parsedSeed = parseSeedPhrase(seed);
+
+		const vaultSeed = await parseVaultValue(password, seed);
+		const parsedSeed = parseSeedPhrase(vaultSeed || seed);
+		//Set the seed state with a valid parsed seed phrase (handle vault scenario)
+		this.setState({ seed: parsedSeed });
 
 		if (loading) return;
 		InteractionManager.runAfterInteractions(() => {

app/util/validators/index.js

@@ -1,11 +1,36 @@
 import { ethers } from 'ethers';
 import { confusables } from 'unicode-confusables';
+import Encryptor from '../../core/Encryptor';
 
 export const failedSeedPhraseRequirements = (seed) => {
 	const wordCount = seed.split(/\s/u).length;
 	return wordCount % 3 !== 0 || wordCount > 24 || wordCount < 12;
 };
 
+/**
+ * This method validates and decyrpts a raw vault. Only works with iOS/Android vaults!
+ * The extension uses different cryptography for the vault.
+ * @param {string} password - users password related to vault
+ * @param {string} vault - exported from ios/android filesytem
+ * @returns seed phrase from vault
+ */
+export const parseVaultValue = async (password, vault) => {
+	let vaultSeed;
+
+	if (vault[0] === '{' && vault[vault.length - 1] === '}')
+		try {
+			const seedObject = JSON.parse(vault);
+			if (seedObject?.cipher && seedObject?.salt && seedObject?.iv && seedObject?.lib) {
+				const encryptor = new Encryptor();
+				const result = await encryptor.decrypt(password, vault);
+				vaultSeed = result[0]?.data?.mnemonic;
+			}
+		} catch (error) {
+			//No-op
+		}
+	return vaultSeed;
+};
+
 export const parseSeedPhrase = (seedPhrase) => (seedPhrase || '').trim().toLowerCase().match(/\w+/gu)?.join(' ') || '';
 
 export const { isValidMnemonic } = ethers.utils;