From de14574800ed21765e1ac6bba1d19b774f477c29 Mon Sep 17 00:00:00 2001
From: Michael <Michael@some.where>
Date: Thu, 9 Feb 2017 20:32:53 -0500
Subject: [PATCH] Compress shop items on server-side.

---
 ShiftOS.Server/Program.cs                     | 41 ++++++++++++++++---
 ShiftOS.WinForms/Applications/Downloader.cs   | 30 ++++++++++++++
 .../Applications/MUDControlCentre.cs          |  4 +-
 3 files changed, 67 insertions(+), 8 deletions(-)

diff --git a/ShiftOS.Server/Program.cs b/ShiftOS.Server/Program.cs
index c468503..352214d 100644
--- a/ShiftOS.Server/Program.cs
+++ b/ShiftOS.Server/Program.cs
@@ -34,6 +34,7 @@ using Newtonsoft.Json;
 using System.Net;
 using System.Net.Sockets;
 using System.Security.Cryptography;
+using System.IO.Compression;
 
 namespace ShiftOS.Server
 {
@@ -223,11 +224,39 @@ namespace ShiftOS.Server
             File.WriteAllText(fPath, Encryption.Encrypt(contents));
         }
 
-		/// <summary>
-		/// Interpret the specified msg.
-		/// </summary>
-		/// <param name="msg">Message.</param>
-		public static void Interpret(ServerMessage msg)
+        public static string Compress(string s)
+        {
+            var bytes = Encoding.Unicode.GetBytes(s);
+            using (var msi = new MemoryStream(bytes))
+            using (var mso = new MemoryStream())
+            {
+                using (var gs = new GZipStream(mso, CompressionMode.Compress))
+                {
+                    msi.CopyTo(gs);
+                }
+                return Convert.ToBase64String(mso.ToArray());
+            }
+        }
+
+        public static string Decompress(string s)
+        {
+            var bytes = Convert.FromBase64String(s);
+            using (var msi = new MemoryStream(bytes))
+            using (var mso = new MemoryStream())
+            {
+                using (var gs = new GZipStream(msi, CompressionMode.Decompress))
+                {
+                    gs.CopyTo(mso);
+                }
+                return Encoding.Unicode.GetString(mso.ToArray());
+            }
+        }
+
+        /// <summary>
+        /// Interpret the specified msg.
+        /// </summary>
+        /// <param name="msg">Message.</param>
+        public static void Interpret(ServerMessage msg)
 		{
 			Dictionary<string, object> args = null;
 
@@ -465,7 +494,7 @@ Contents:
                                 Contents = JsonConvert.SerializeObject(new
                                 {
                                     shop = shopName,
-                                    itemdata = item
+                                    itemdata = Compress(Compress(JsonConvert.SerializeObject(item)))
                                 })
                             }));
                         }
diff --git a/ShiftOS.WinForms/Applications/Downloader.cs b/ShiftOS.WinForms/Applications/Downloader.cs
index dfa2425..2f33462 100644
--- a/ShiftOS.WinForms/Applications/Downloader.cs
+++ b/ShiftOS.WinForms/Applications/Downloader.cs
@@ -12,6 +12,8 @@ using ShiftOS.Engine;
 using Newtonsoft.Json;
 using ShiftOS.WinForms.Controls;
 using ShiftOS.WinForms.Tools;
+using System.IO;
+using System.IO.Compression;
 
 namespace ShiftOS.WinForms.Applications
 {
@@ -113,6 +115,34 @@ namespace ShiftOS.WinForms.Applications
 
         public static event Action<Download> DownloadStarted;
 
+        public static string Compress(string s)
+        {
+            var bytes = Encoding.Unicode.GetBytes(s);
+            using (var msi = new MemoryStream(bytes))
+            using (var mso = new MemoryStream())
+            {
+                using (var gs = new GZipStream(mso, CompressionMode.Compress))
+                {
+                    msi.CopyTo(gs);
+                }
+                return Convert.ToBase64String(mso.ToArray());
+            }
+        }
+
+        public static string Decompress(string s)
+        {
+            var bytes = Convert.FromBase64String(s);
+            using (var msi = new MemoryStream(bytes))
+            using (var mso = new MemoryStream())
+            {
+                using (var gs = new GZipStream(msi, CompressionMode.Decompress))
+                {
+                    gs.CopyTo(mso);
+                }
+                return Encoding.Unicode.GetString(mso.ToArray());
+            }
+        }
+
         public static void StartDownload(Download down)
         {
             var t = new Thread(() =>
diff --git a/ShiftOS.WinForms/Applications/MUDControlCentre.cs b/ShiftOS.WinForms/Applications/MUDControlCentre.cs
index 67c6c17..6336718 100644
--- a/ShiftOS.WinForms/Applications/MUDControlCentre.cs
+++ b/ShiftOS.WinForms/Applications/MUDControlCentre.cs
@@ -142,10 +142,10 @@ namespace ShiftOS.WinForms.Applications
                         }
                         else if(msg.Name == "shop_additem")
                         {
-                            var contents = JsonConvert.DeserializeObject<Dictionary<string, object>>(msg.Contents);
+                            var contents = JsonConvert.DeserializeObject<Dictionary<string, string>>(msg.Contents);
                             if((string)contents["shop"] == CurrentShop.Name)
                             {
-                                CurrentShop.Items.Add(JsonConvert.DeserializeObject<ShopItem>(JsonConvert.SerializeObject(contents["itemdata"])));
+                                CurrentShop.Items.Add(JsonConvert.DeserializeObject<ShopItem>(DownloadManager.Decompress(DownloadManager.Decompress(contents["itemdata"] as string))));
                                 this.Invoke(new Action(PopulateShopView));
                             }
                         }