From 8d9c9217dcc2ceebd0e1890057b9852e46971178 Mon Sep 17 00:00:00 2001
From: Brent Simmons <brent@ranchero.com>
Date: Tue, 26 Sep 2017 13:16:46 -0700
Subject: [PATCH] Make HTTPConditionalGetInfo serializable via a dictionary.

---
 .../RSWeb/RSWeb/HTTPConditionalGetInfo.swift  | 35 ++++++++++++++++---
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/Frameworks/RSWeb/RSWeb/HTTPConditionalGetInfo.swift b/Frameworks/RSWeb/RSWeb/HTTPConditionalGetInfo.swift
index b086f8d3b..a6cd1f2ff 100755
--- a/Frameworks/RSWeb/RSWeb/HTTPConditionalGetInfo.swift
+++ b/Frameworks/RSWeb/RSWeb/HTTPConditionalGetInfo.swift
@@ -8,30 +8,55 @@
 
 import Foundation
 
-public struct HTTPConditionalGetInfo: Codable {
+public struct HTTPConditionalGetInfo {
 	
 	public let lastModified: String?
 	public let etag: String?
+
 	public var isEmpty: Bool {
 		get {
 			return lastModified == nil && etag == nil
 		}
 	}
 	
-	public init(lastModified: String?, etag: String?) {
-		
+	public init?(lastModified: String?, etag: String?) {
+
+		if lastModified == nil && etag == nil {
+			return nil
+		}
 		self.lastModified = lastModified
 		self.etag = etag
 	}
 	
-	public init(urlResponse: HTTPURLResponse) {
+	public init?(urlResponse: HTTPURLResponse) {
 	
 		let lastModified = urlResponse.valueForHTTPHeaderField(HTTPResponseHeader.lastModified)
 		let etag = urlResponse.valueForHTTPHeaderField(HTTPResponseHeader.etag)
 		
 		self.init(lastModified: lastModified, etag: etag)
 	}
-	
+
+	public var dictionary: [String: String]? {
+		get {
+			if lastModified == nil && etag == nil {
+				return nil
+			}
+			var d = [String: String]()
+			if let lastModified = lastModified {
+				d[HTTPResponseHeader.lastModified] = lastModified
+			}
+			if let etag = etag {
+				d[HTTPResponseHeader.etag] = etag
+			}
+			return d
+		}
+	}
+
+	public init?(dictionary: [String: String]) {
+
+		self.init(lastModified: dictionary[HTTPResponseHeader.lastModified], etag: dictionary[HTTPResponseHeader.etag])
+	}
+
 	public func addRequestHeadersToURLRequest(_ urlRequest: NSMutableURLRequest) {
 		
 		if let lastModified = lastModified {