cashier/utils/storage.ts

95 lines
2.5 KiB
TypeScript

import CryptoJS from 'crypto-js';
import { APP_CONFIG } from '@/config';
interface StorageEnvelope<T> {
value: T;
expiresAt: number;
}
const AES_KEY = CryptoJS.enc.Hex.parse(CryptoJS.SHA256(APP_CONFIG.STORAGE_ENCRYPTION_KEY).toString());
const AES_IV = CryptoJS.enc.Hex.parse(CryptoJS.MD5(APP_CONFIG.STORAGE_ENCRYPTION_KEY).toString());
const encrypt = (value: unknown) => {
const payload = CryptoJS.enc.Utf8.parse(JSON.stringify(value));
return CryptoJS.AES.encrypt(payload, AES_KEY, {
iv: AES_IV,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
}).toString();
};
const decrypt = <T>(value: string): T | null => {
try {
const decrypted = CryptoJS.AES.decrypt(value, AES_KEY, {
iv: AES_IV,
mode: CryptoJS.mode.CBC,
padding: CryptoJS.pad.Pkcs7
}).toString(CryptoJS.enc.Utf8);
if (decrypted) {
return JSON.parse(decrypted) as T;
}
// Backward compatibility for old passphrase-based ciphertexts.
const legacy = CryptoJS.AES.decrypt(value, APP_CONFIG.STORAGE_ENCRYPTION_KEY).toString(CryptoJS.enc.Utf8);
return legacy ? JSON.parse(legacy) as T : null;
} catch (error) {
return null;
}
};
export const encryptedStorage = {
set<T>(key: string, value: T, expiresInSeconds = 0) {
const envelope: StorageEnvelope<T> = {
value,
expiresAt: expiresInSeconds > 0 ? Date.now() + expiresInSeconds * 1000 : 0
};
uni.setStorageSync(key, encrypt(envelope));
},
get<T>(key: string): T | null {
const encryptedValue = uni.getStorageSync(key);
if (typeof encryptedValue !== 'string' || !encryptedValue) return null;
const envelope = decrypt<StorageEnvelope<T>>(encryptedValue);
if (!envelope || typeof envelope !== 'object' || !('value' in envelope)) {
uni.removeStorageSync(key);
return null;
}
if (envelope.expiresAt > 0 && envelope.expiresAt <= Date.now()) {
uni.removeStorageSync(key);
return null;
}
return envelope.value;
},
remove(key: string) {
uni.removeStorageSync(key);
}
};
let cachedTokenLogged = false;
export const authStorage = {
getToken() {
const token = encryptedStorage.get<string>(APP_CONFIG.STORAGE_TOKEN_KEY) || '';
if (token && !cachedTokenLogged) {
cachedTokenLogged = true;
console.log('[cashier] token:', token);
}
return token;
},
setToken(token: string, expiresInSeconds = 0) {
encryptedStorage.set(APP_CONFIG.STORAGE_TOKEN_KEY, token, expiresInSeconds);
cachedTokenLogged = true;
console.log('[cashier] token:', token);
},
clearToken() {
encryptedStorage.remove(APP_CONFIG.STORAGE_TOKEN_KEY);
cachedTokenLogged = false;
}
};