68 lines
2.9 KiB
Swift
68 lines
2.9 KiB
Swift
//
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// Copyright (c) 2022 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Foundation
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import KeychainAccess
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open class DefaultEncryptedTokenStorage: SingleValueAuthKeychainStorage<StringEncryptionResult> {
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open class Defaults: SingleValueAuthKeychainStorage<StringEncryptionResult>.Defaults {
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public static var encryptedTokenStorageKey: String {
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keychainServiceIdentifier + ".encryptedToken"
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}
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}
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public init(keychain: Keychain = Keychain(service: Defaults.keychainServiceIdentifier),
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settingsStorage: AuthSettingsStorage = DefaultAuthSettingsStorage(),
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encryptedTokenStorageKey: String = Defaults.encryptedTokenStorageKey) {
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let getValueClosure: GetValueClosure = { keychain, storageKey in
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do {
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guard let value = try keychain.getData(storageKey) else {
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return .failure(.valueNotFound)
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}
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do {
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return .success(try StringEncryptionResult(storableData: value))
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} catch {
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return .failure(.unableToDecode(underlyingError: error))
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}
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} catch {
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return .failure(.unableToExtractData(underlyingError: error))
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}
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}
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let setValueClosure: SetValueClosure = { keychain, value, storageKey in
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do {
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return .success(try keychain.set(value.asStorableData(), key: storageKey))
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} catch {
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return .failure(.unableToWriteData(underlyingError: error))
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}
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}
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super.init(keychain: keychain,
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settingsStorage: settingsStorage,
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storageKey: encryptedTokenStorageKey,
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getValueClosure: getValueClosure,
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setValueClosure: setValueClosure)
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}
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}
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