ReadKeep/readeck/Data/KeychainHelper.swift
Ilyas Hallak ffb41347af refactor: Implement state machine architecture for offline sync
- Replace multiple boolean properties with single OfflineBookmarkSyncState enum
- Add Use Case pattern for OfflineSyncManager with dependency injection
- Simplify LocalBookmarksSyncView using state-driven UI with external bindings
- Convert OfflineBookmarksViewModel to use @Observable instead of ObservableObject
- Move credentials from Core Data to Keychain for better persistence
- Implement comprehensive database migration for App Group containers
- Add structured logging throughout sync operations and API calls

Architecture improvements follow MVVM principles with clean separation of concerns.
2025-08-18 22:58:42 +02:00

86 lines
2.8 KiB
Swift

import Foundation
import Security
class KeychainHelper {
static let shared = KeychainHelper()
private init() {}
private static let accessGroup = "8J69P655GN.de.ilyashallak.readeck"
@discardableResult
func saveToken(_ token: String) -> Bool {
saveString(token, forKey: "readeck_token")
}
func loadToken() -> String? {
loadString(forKey: "readeck_token")
}
@discardableResult
func saveEndpoint(_ endpoint: String) -> Bool {
saveString(endpoint, forKey: "readeck_endpoint")
}
func loadEndpoint() -> String? {
loadString(forKey: "readeck_endpoint")
}
@discardableResult
func saveUsername(_ username: String) -> Bool {
saveString(username, forKey: "readeck_username")
}
func loadUsername() -> String? {
loadString(forKey: "readeck_username")
}
@discardableResult
func savePassword(_ password: String) -> Bool {
saveString(password, forKey: "readeck_password")
}
func loadPassword() -> String? {
loadString(forKey: "readeck_password")
}
@discardableResult
func clearCredentials() -> Bool {
let tokenCleared = saveString("", forKey: "readeck_token")
let endpointCleared = saveString("", forKey: "readeck_endpoint")
let usernameCleared = saveString("", forKey: "readeck_username")
let passwordCleared = saveString("", forKey: "readeck_password")
return tokenCleared && endpointCleared && usernameCleared && passwordCleared
}
// MARK: - Private generic helpers
@discardableResult
private func saveString(_ value: String, forKey key: String) -> Bool {
guard let data = value.data(using: .utf8) else { return false }
let query: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
kSecAttrAccount as String: key,
kSecValueData as String: data,
kSecAttrAccessGroup as String: KeychainHelper.accessGroup
]
SecItemDelete(query as CFDictionary)
let status = SecItemAdd(query as CFDictionary, nil)
return status == errSecSuccess
}
private func loadString(forKey key: String) -> String? {
let query: [String: Any] = [
kSecClass as String: kSecClassGenericPassword,
kSecAttrAccount as String: key,
kSecAttrAccessGroup as String: KeychainHelper.accessGroup,
kSecReturnData as String: true,
kSecMatchLimit as String: kSecMatchLimitOne
]
var result: AnyObject?
let status = SecItemCopyMatching(query as CFDictionary, &result)
if status == errSecSuccess, let data = result as? Data {
return String(data: data, encoding: .utf8)
}
return nil
}
}