2020-07-21 13:15:08 +00:00
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/*
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Copyright 2018 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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2020-07-22 14:07:54 +00:00
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import KeychainAccess
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2020-07-21 13:15:08 +00:00
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/// Pin code preferences.
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@objcMembers
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final class PinCodePreferences: NSObject {
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// MARK: - Constants
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2020-07-22 14:07:54 +00:00
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private struct PinConstants {
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static let pinCodeKeychainService: String = "im.vector.app.pin-service"
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}
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private struct StoreKeys {
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static let pin: String = "pin"
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2020-07-21 13:15:08 +00:00
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}
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static let shared = PinCodePreferences()
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2020-07-22 08:37:09 +00:00
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/// Store. Defaults to `KeychainStore`
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2020-07-22 19:47:10 +00:00
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private let store: KeyValueStore
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2020-07-22 08:37:09 +00:00
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override init() {
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store = KeychainStore(withKeychain: Keychain(service: PinConstants.pinCodeKeychainService,
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accessGroup: Constants.keychainAccessGroup))
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2020-07-22 14:47:45 +00:00
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super.init()
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2020-07-22 08:37:09 +00:00
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}
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2020-07-21 13:15:08 +00:00
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// MARK: - Public
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/// Setting to force protection by pin code
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var forcePinProtection: Bool {
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return RiotSettings.shared.forcePinProtection
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}
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2020-07-21 13:26:22 +00:00
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/// Allowed number of PIN trials before showing forgot help alert
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let allowedNumberOfTrialsBeforeAlert: Int = 5
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/// Max allowed time to continue using the app without prompting PIN
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let graceTimeInSeconds: TimeInterval = 120
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2020-07-21 13:15:08 +00:00
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2020-07-21 16:32:48 +00:00
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/// Number of digits for the PIN
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let numberOfDigits: Int = 4
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2020-07-21 13:15:08 +00:00
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/// Is user has set a pin
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var isPinSet: Bool {
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return pin != nil
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}
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/// Saved user PIN
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var pin: String? {
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get {
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2020-07-22 14:07:54 +00:00
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do {
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return try store.object(forKey: StoreKeys.pin) as? String
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} catch let error {
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NSLog("[PinCodePreferences] Error when reading user pin from store: \(error)")
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return nil
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}
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} set {
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do {
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try store.set(newValue, forKey: StoreKeys.pin)
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} catch let error {
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NSLog("[PinCodePreferences] Error when storing user pin to the store: \(error)")
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}
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2020-07-21 13:15:08 +00:00
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}
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}
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/// Resets user PIN
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func reset() {
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pin = nil
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}
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}
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