Dactyloidae iOS initial commit

mobile/ios/ReadingList/ReadingListResponse.swift

@@ -0,0 +1,28 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import Foundation
+
+/// Wrapper around NSURLResponse and the response json object to easily pass this to delegates. Also contains some higher level functions to access service specific headers.
+///
+/// TODO: In the Android code this is a subclass of MozResponse - Which has a bunch of other useful shortcuts. Maybe we should do that too? Or for the sake of simplicity, move some of those functions (which ones do we need?) into this class
+class ReadingListResponse {
+    var response: HTTPURLResponse
+    var json: [String: Any]?
+
+    init?(response: HTTPURLResponse, json: [String: Any]) {
+        self.response = response
+        self.json = json
+    }
+
+    var lastModified: Int64? {
+        get {
+            if let lastModified = response.allHeaderFields["Last-Modified"] as? String {
+                return Int64(lastModified)
+            } else {
+                return nil
+            }
+        }
+    }
+}