76 lines
2.3 KiB
TypeScript
76 lines
2.3 KiB
TypeScript
import { Platform } from 'react-native';
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import { BlueApp as BlueAppClass } from '../class/blue-app';
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import prompt from '../helpers/prompt';
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import { showKeychainWipeAlert } from '../hooks/useBiometrics';
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import loc from '../loc';
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const BlueApp = BlueAppClass.getInstance();
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// If attempt reaches 10, a wipe keychain option will be provided to the user.
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let unlockAttempt = 0;
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type PasswordPromptCallback = () => Promise<string | undefined>;
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export const startAndDecrypt = async (retry?: boolean, passwordPrompt?: PasswordPromptCallback): Promise<boolean> => {
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// If wallets are already loaded, no need to migrate, decrypt, or load from disk.
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if (BlueApp.getWallets().length > 0) {
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return true;
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}
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await BlueApp.migrateKeys();
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let password: undefined | string;
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if (await BlueApp.storageIsEncrypted()) {
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if (passwordPrompt) {
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password = await passwordPrompt();
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} else {
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do {
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password = await prompt((retry && loc._.bad_password) || loc._.enter_password, loc._.storage_is_encrypted, { cancelable: false });
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} while (!password);
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}
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}
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let success = false;
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let wasException = false;
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try {
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success = await BlueApp.loadFromDisk(password);
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} catch (error) {
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// in case of exception reading from keystore, lets retry instead of assuming there is no storage and
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// proceeding with no wallets
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console.warn('exception loading from disk:', error);
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wasException = true;
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}
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if (wasException) {
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// retrying, but only once
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try {
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await new Promise(resolve => setTimeout(resolve, 3000)); // sleep
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success = await BlueApp.loadFromDisk(password);
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} catch (error) {
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console.warn('second exception loading from disk:', error);
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}
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}
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if (success) {
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console.log('loaded from disk');
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return true;
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}
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if (password) {
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// we had password and yet could not load/decrypt
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unlockAttempt++;
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if (unlockAttempt < 10 || Platform.OS !== 'ios') {
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// Return false to indicate wrong password, let UI show error and retry
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return false;
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} else {
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unlockAttempt = 0;
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showKeychainWipeAlert();
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// We want to return false to let the UnlockWith screen that it is NOT ok to proceed.
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return false;
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}
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} else {
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unlockAttempt = 0;
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// Return true because there was no wallet data in keychain. Proceed.
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return true;
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}
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};
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export default BlueApp;
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