Updated NETunnelProvider save format

Signed-off-by: Eric Kuck <eric@bluelinelabs.com>
2018-12-20 22:52:45 -06:00
parent 38445114e0
commit 8553723e04
23 changed files with 664 additions and 224 deletions
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2018 WireGuard LLC. All Rights Reserved.
+
+import Foundation
+import Network
+
+struct LegacyDNSServer: Codable {
+    let address: IPAddress
+    
+    init(from decoder: Decoder) throws {
+        let container = try decoder.singleValueContainer()
+        var data = try container.decode(Data.self)
+        let ipAddressFromData: IPAddress? = {
+            switch data.count {
+            case 4: return IPv4Address(data)
+            case 16: return IPv6Address(data)
+            default: return nil
+            }
+        }()
+        guard let ipAddress = ipAddressFromData else {
+            throw DecodingError.invalidData
+        }
+        address = ipAddress
+    }
+    
+    func encode(to encoder: Encoder) throws {
+        var container = encoder.singleValueContainer()
+        try container.encode(address.rawValue)
+    }
+
+    enum DecodingError: Error {
+        case invalidData
+    }
+}
+
+extension LegacyDNSServer {
+    var migrated: DNSServer {
+        return DNSServer(address: address)
+    }
+}
+
+extension Array where Element == LegacyDNSServer {
+    var migrated: [DNSServer] {
+        return map { $0.migrated }
+    }
+}