Create swift package

Sources/SideStoreCore/Components/Keychain.swift

@@ -0,0 +1,83 @@
+//
+//  Keychain.swift
+//  AltStore
+//
+//  Created by Riley Testut on 6/4/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import Foundation
+import KeychainAccess
+
+import AltSign
+
+@propertyWrapper
+public struct KeychainItem<Value> {
+    public let key: String
+
+    public var wrappedValue: Value? {
+        get {
+            switch Value.self {
+            case is Data.Type: return try? Keychain.shared.keychain.getData(key) as? Value
+            case is String.Type: return try? Keychain.shared.keychain.getString(key) as? Value
+            default: return nil
+            }
+        }
+        set {
+            switch Value.self {
+            case is Data.Type: Keychain.shared.keychain[data: key] = newValue as? Data
+            case is String.Type: Keychain.shared.keychain[key] = newValue as? String
+            default: break
+            }
+        }
+    }
+
+    public init(key: String) {
+        self.key = key
+    }
+}
+
+public class Keychain {
+    public static let shared = Keychain()
+
+    fileprivate let keychain = KeychainAccess.Keychain(service: Bundle.Info.appbundleIdentifier).accessibility(.afterFirstUnlock).synchronizable(true)
+
+    @KeychainItem(key: "appleIDEmailAddress")
+    public var appleIDEmailAddress: String?
+
+    @KeychainItem(key: "appleIDPassword")
+    public var appleIDPassword: String?
+
+    @KeychainItem(key: "signingCertificatePrivateKey")
+    public var signingCertificatePrivateKey: Data?
+
+    @KeychainItem(key: "signingCertificateSerialNumber")
+    public var signingCertificateSerialNumber: String?
+
+    @KeychainItem(key: "signingCertificate")
+    public var signingCertificate: Data?
+
+    @KeychainItem(key: "signingCertificatePassword")
+    public var signingCertificatePassword: String?
+
+    @KeychainItem(key: "patreonAccessToken")
+    public var patreonAccessToken: String?
+
+    @KeychainItem(key: "patreonRefreshToken")
+    public var patreonRefreshToken: String?
+
+    @KeychainItem(key: "patreonCreatorAccessToken")
+    public var patreonCreatorAccessToken: String?
+
+    @KeychainItem(key: "patreonAccountID")
+    public var patreonAccountID: String?
+
+    private init() {}
+
+    public func reset() {
+        appleIDEmailAddress = nil
+        appleIDPassword = nil
+        signingCertificatePrivateKey = nil
+        signingCertificateSerialNumber = nil
+    }
+}