From f98afbf64c96b7714350379b02465f419d9fcb70 Mon Sep 17 00:00:00 2001
From: FunGamesLeaks <mcdtloeser@gmail.com>
Date: Mon, 28 Oct 2019 22:15:55 +0100
Subject: [PATCH] improved backup

---
 FModel/Methods/PAKs/BackupPAKs.cs | 27 ++++++++++++++-------------
 FModel/Methods/PAKs/PAKsLoader.cs | 18 ++++++++++++++++--
 2 files changed, 30 insertions(+), 15 deletions(-)

diff --git a/FModel/Methods/PAKs/BackupPAKs.cs b/FModel/Methods/PAKs/BackupPAKs.cs
index e69a3fda..a2f52545 100644
--- a/FModel/Methods/PAKs/BackupPAKs.cs
+++ b/FModel/Methods/PAKs/BackupPAKs.cs
@@ -1,19 +1,16 @@
 using FModel.Methods.Utilities;
 using PakReader;
 using System;
-using System.Collections.Generic;
 using System.IO;
 using System.Linq;
 using System.Threading.Tasks;
-using System.Xml.Serialization;
 using FProp = FModel.Properties.Settings;
 
 namespace FModel.Methods.PAKs
 {
     static class BackupPAKs
     {
-        public static readonly XmlSerializer serializer = new XmlSerializer(typeof(List<FPakEntry>));
-        private static readonly string BACKUP_FILE_PATH = FProp.Default.FOutput_Path + "\\Backups\\FortniteGame_" + DateTime.Now.ToString("MMddyyyy") + ".xml";
+        private static readonly string BACKUP_FILE_PATH = FProp.Default.FOutput_Path + "\\Backups\\FortniteGame_" + DateTime.Now.ToString("MMddyyyy") + ".fbkp";
 
         public static async Task CreateBackupFile()
         {
@@ -30,7 +27,10 @@ namespace FModel.Methods.PAKs
         {
             if (PAKEntries.PAKEntriesList != null && PAKEntries.PAKEntriesList.Any())
             {
-                List<FPakEntry> BackupList = new List<FPakEntry>();
+                new UpdateMyProcessEvents($"Writing {Path.GetFileName(BACKUP_FILE_PATH)}", "Waiting").Update();
+                Directory.CreateDirectory(Path.GetDirectoryName(BACKUP_FILE_PATH));
+                var fileStream = new FileStream(BACKUP_FILE_PATH, FileMode.Create);
+                var writer = new BinaryWriter(fileStream);
                 foreach (PAKInfosEntry Pak in PAKEntries.PAKEntriesList)
                 {
                     byte[] AESKey = null;
@@ -59,18 +59,19 @@ namespace FModel.Methods.PAKs
 
                             foreach (FPakEntry entry in reader.FileInfos)
                             {
-                                BackupList.Add(entry);
+                                writer.Write(entry.Pos);
+                                writer.Write(entry.Size);
+                                writer.Write(entry.UncompressedSize);
+                                writer.Write(entry.Encrypted);
+                                writer.Write(entry.StructSize);
+                                writer.Write(entry.Name);
+                                writer.Write(entry.CompressionMethod);
                             }
                         }
                     }
                 }
-
-                new UpdateMyProcessEvents($"Writing {Path.GetFileName(BACKUP_FILE_PATH)}", "Waiting").Update();
-                Directory.CreateDirectory(Path.GetDirectoryName(BACKUP_FILE_PATH));
-                using (var fileStream = new FileStream(BACKUP_FILE_PATH, FileMode.Create))
-                {
-                    serializer.Serialize(fileStream, BackupList);
-                }
+                fileStream.Close();
+                writer.Close();
                 if (new FileInfo(BACKUP_FILE_PATH).Length > 0) //HENCE WE CHECK THE LENGTH
                 {
                     new UpdateMyProcessEvents($"\\Backups\\{Path.GetFileName(BACKUP_FILE_PATH)} successfully created", "Success").Update();
diff --git a/FModel/Methods/PAKs/PAKsLoader.cs b/FModel/Methods/PAKs/PAKsLoader.cs
index 5e257911..3ddb4e9f 100644
--- a/FModel/Methods/PAKs/PAKsLoader.cs
+++ b/FModel/Methods/PAKs/PAKsLoader.cs
@@ -238,7 +238,7 @@ namespace FModel.Methods.PAKs
             openFiledialog.Title = "Choose your Backup File";
             openFiledialog.InitialDirectory = FProp.Default.FOutput_Path + "\\Backups\\";
             openFiledialog.Multiselect = false;
-            openFiledialog.Filter = "XML Files (*.xml)|*.xml|All Files (*.*)|*.*";
+            openFiledialog.Filter = "FBKP Files (*.fbkp)|*.fbkp|All Files (*.*)|*.*";
             if (openFiledialog.ShowDialog() == true)
             {
                 new UpdateMyProcessEvents("Comparing Files", "Waiting").Update();
@@ -246,7 +246,21 @@ namespace FModel.Methods.PAKs
                 FPakEntry[] BackupEntries;
                 using (var fileStream = new FileStream(openFiledialog.FileName, FileMode.Open))
                 {
-                    BackupEntries = ((List<FPakEntry>)BackupPAKs.serializer.Deserialize(fileStream)).ToArray();
+                    List<FPakEntry> entries = new List<FPakEntry>();
+                    var reader = new BinaryReader(fileStream);
+                    while(reader.BaseStream.Position < reader.BaseStream.Length)
+                    {
+                        var entry = new FPakEntry();
+                        entry.Pos = reader.ReadInt64();
+                        entry.Size = reader.ReadInt64();
+                        entry.UncompressedSize = reader.ReadInt64();
+                        entry.Encrypted = reader.ReadBoolean();
+                        entry.StructSize = reader.ReadInt32();
+                        entry.Name = reader.ReadString();
+                        entry.CompressionMethod = reader.ReadInt32();
+                        entries.Add(entry);
+                    }
+                    BackupEntries = entries.ToArray();
                 }
 
                 if (BackupEntries.Any())