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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 | /**
* WiFi Password Secure Storage Service
*
* Provides secure storage for WiFi passwords using expo-secure-store with encryption.
* All passwords are encrypted using AES-256-GCM before storage.
*/
import * as SecureStore from 'expo-secure-store';
import { encrypt, decrypt, isEncrypted } from './encryption';
const WIFI_PASSWORDS_KEY = 'WIFI_PASSWORDS';
const LEGACY_SINGLE_PASSWORD_KEY = 'LAST_WIFI_PASSWORD';
export interface WiFiPasswordMap {
[ssid: string]: string;
}
/**
* Save WiFi password for a specific network
* @param ssid Network SSID
* @param password Network password
*/
export async function saveWiFiPassword(ssid: string, password: string): Promise<void> {
try {
// Get existing passwords (encrypted format)
const existing = await getAllWiFiPasswordsEncrypted();
// Encrypt the password
const encryptedPassword = await encrypt(password);
// Add/update the password
existing[ssid] = encryptedPassword;
// Save back to SecureStore
await SecureStore.setItemAsync(WIFI_PASSWORDS_KEY, JSON.stringify(existing));
} catch (error) {
throw error;
}
}
/**
* Get WiFi password for a specific network
* @param ssid Network SSID
* @returns Decrypted password or undefined if not found
*/
export async function getWiFiPassword(ssid: string): Promise<string | undefined> {
try {
const encryptedPasswords = await getAllWiFiPasswordsEncrypted();
const encryptedPassword = encryptedPasswords[ssid];
if (!encryptedPassword) {
return undefined;
}
// Decrypt the password
const decryptedPassword = await decrypt(encryptedPassword);
return decryptedPassword;
} catch {
return undefined;
}
}
/**
* Get all saved WiFi passwords (encrypted format)
* Internal helper - passwords remain encrypted
* @returns Map of SSID to encrypted password
*/
async function getAllWiFiPasswordsEncrypted(): Promise<WiFiPasswordMap> {
try {
const stored = await SecureStore.getItemAsync(WIFI_PASSWORDS_KEY);
if (stored) {
return JSON.parse(stored);
}
return {};
} catch {
return {};
}
}
/**
* Get all saved WiFi passwords (decrypted)
* @returns Map of SSID to decrypted password
*/
export async function getAllWiFiPasswords(): Promise<WiFiPasswordMap> {
try {
const encryptedPasswords = await getAllWiFiPasswordsEncrypted();
const decryptedPasswords: WiFiPasswordMap = {};
// Decrypt each password
for (const [ssid, encryptedPassword] of Object.entries(encryptedPasswords)) {
try {
decryptedPasswords[ssid] = await decrypt(encryptedPassword);
} catch {
// Skip this password if decryption fails
}
}
return decryptedPasswords;
} catch {
return {};
}
}
/**
* Remove WiFi password for a specific network
* @param ssid Network SSID
*/
export async function removeWiFiPassword(ssid: string): Promise<void> {
try {
const existing = await getAllWiFiPasswordsEncrypted();
// Remove the password
delete existing[ssid];
// Save back to SecureStore
if (Object.keys(existing).length > 0) {
await SecureStore.setItemAsync(WIFI_PASSWORDS_KEY, JSON.stringify(existing));
} else {
// If no passwords left, remove the key entirely
await SecureStore.deleteItemAsync(WIFI_PASSWORDS_KEY);
}
} catch (error) {
throw error;
}
}
/**
* Clear all saved WiFi passwords
* Should be called on logout
*/
export async function clearAllWiFiPasswords(): Promise<void> {
try {
await SecureStore.deleteItemAsync(WIFI_PASSWORDS_KEY);
} catch (error) {
throw error;
}
}
/**
* Migrate unencrypted passwords to encrypted format
* Checks each stored password and encrypts if needed
*/
export async function migrateToEncrypted(): Promise<void> {
try {
const stored = await SecureStore.getItemAsync(WIFI_PASSWORDS_KEY);
if (!stored) {
return;
}
const passwords: WiFiPasswordMap = JSON.parse(stored);
let migrated = 0;
const encryptedPasswords: WiFiPasswordMap = {};
// Check each password
for (const [ssid, password] of Object.entries(passwords)) {
if (isEncrypted(password)) {
// Already encrypted
encryptedPasswords[ssid] = password;
} else {
// Encrypt the plaintext password
encryptedPasswords[ssid] = await encrypt(password);
migrated++;
}
}
// Save back if any were migrated
if (migrated > 0) {
await SecureStore.setItemAsync(WIFI_PASSWORDS_KEY, JSON.stringify(encryptedPasswords));
}
} catch {
// Don't throw - migration failure shouldn't break the app
}
}
/**
* Migrate WiFi passwords from AsyncStorage to SecureStore with encryption
* This function should be called once during app startup to migrate existing data
*/
export async function migrateFromAsyncStorage(): Promise<void> {
try {
// eslint-disable-next-line @typescript-eslint/no-require-imports
const AsyncStorage = require('@react-native-async-storage/async-storage').default;
// Check if migration already done
const existing = await SecureStore.getItemAsync(WIFI_PASSWORDS_KEY);
if (existing) {
// Still run encryption migration in case they were migrated but not encrypted
await migrateToEncrypted();
return;
}
// Try to get old data from AsyncStorage
const oldPasswords = await AsyncStorage.getItem('WIFI_PASSWORDS');
if (oldPasswords) {
const passwords: WiFiPasswordMap = JSON.parse(oldPasswords);
const encryptedPasswords: WiFiPasswordMap = {};
// Encrypt each password during migration
for (const [ssid, password] of Object.entries(passwords)) {
encryptedPasswords[ssid] = await encrypt(password);
}
// Migrate to SecureStore with encryption
await SecureStore.setItemAsync(WIFI_PASSWORDS_KEY, JSON.stringify(encryptedPasswords));
// Remove from AsyncStorage
await AsyncStorage.removeItem('WIFI_PASSWORDS');
await AsyncStorage.removeItem(LEGACY_SINGLE_PASSWORD_KEY);
}
} catch {
// Don't throw - migration failure shouldn't break the app
}
}
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