├── README.md
├── YPF Manager
    ├── packages.config
    ├── App.config
    ├── Checksum
    │   ├── Checksum.cs
    │   ├── MurmurHash2.cs
    │   ├── Crc32.cs
    │   └── Adler32.cs
    ├── YPF
    │   ├── YPFEntry.cs
    │   ├── YPFHeader.cs
    │   └── YPFArchive.cs
    ├── Log.cs
    ├── Properties
    │   └── AssemblyInfo.cs
    ├── Util.cs
    ├── YPF Manager.csproj
    ├── Program.cs
    └── Config.cs
├── YPF Manager.sln
└── .gitignore


/README.md:
--------------------------------------------------------------------------------
1 | # YPF-Manager


--------------------------------------------------------------------------------
/YPF Manager/packages.config:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <packages>
3 |   <package id="DotNetZip" version="1.15.0" targetFramework="net472" />
4 | </packages>


--------------------------------------------------------------------------------
/YPF Manager/App.config:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8" ?>
2 | <configuration>
3 |   <startup>
4 |     <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
5 |   </startup>
6 | </configuration>


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/YPF Manager/Checksum/Checksum.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.IO;
 3 | 
 4 | namespace Ypf_Manager
 5 | {
 6 |     abstract class Checksum
 7 |     {
 8 | 
 9 |         //
10 |         // Variable(s)
11 |         //
12 | 
13 |         public abstract String Name { get; }
14 | 
15 | 
16 |         //
17 |         // Function(s)
18 |         //
19 | 
20 |         // Compute byte array hash with implemented algorithm
21 |         public abstract UInt32 ComputeHash(Byte[] inputBytes);
22 | 
23 | 
24 |         // Compute stream hash with implemented algorithm
25 |         public UInt32 ComputeHash(Stream inputStream, int length)
26 |         {
27 |             Byte[] buffer = new Byte[length];
28 | 
29 |             inputStream.Read(buffer, 0, length);
30 | 
31 |             return ComputeHash(buffer);
32 |         }
33 | 
34 |     }
35 | }
36 | 


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/YPF Manager/YPF/YPFEntry.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | 
 3 | namespace Ypf_Manager
 4 | {
 5 |     class YPFEntry
 6 |     {
 7 | 
 8 |         //
 9 |         // Enum(s)
10 |         //
11 | 
12 |         public enum FileType
13 |         {
14 |             text = 0,
15 |             bmp = 1,
16 |             png = 2,
17 |             jpg = 3,
18 |             gif = 4,
19 |             wav = 5,
20 |             ogg = 6,
21 |             psd = 7,
22 |             ycg = 8, //masked as .png
23 |             psb = 9
24 |         }
25 | 
26 | 
27 |         //
28 |         // Variable(s)
29 |         //
30 | 
31 |         public String FileName { get; set; }
32 | 
33 |         public UInt32 NameChecksum { get; set; }
34 | 
35 |         public UInt32 DataChecksum { get; set; }
36 | 
37 |         public Int32 CompressedFileSize { get; set; }
38 | 
39 |         public Int32 RawFileSize { get; set; }
40 | 
41 |         public Boolean IsCompressed { get; set; }
42 | 
43 |         public FileType Type { get; set; }
44 | 
45 |         public Int64 Offset { get; set; }
46 | 
47 |     }
48 | }
49 | 


--------------------------------------------------------------------------------
/YPF Manager/Log.cs:
--------------------------------------------------------------------------------
 1 | using System;
 2 | using System.IO;
 3 | using System.Text;
 4 | 
 5 | namespace Ypf_Manager
 6 | {
 7 |     class Log
 8 |     {
 9 | 
10 |         //
11 |         // Variable(s)
12 |         //
13 | 
14 |         private readonly StringBuilder sb;
15 | 
16 | 
17 |         //
18 |         // Constructor(s)
19 |         //
20 | 
21 |         public Log()
22 |         {
23 |             sb = new StringBuilder();
24 |         }
25 | 
26 | 
27 |         //
28 |         // Function(s)
29 |         //
30 | 
31 |         // Add a new message to the log
32 |         public void Add(String message)
33 |         {
34 |             sb.Append(DateTime.Now.ToString("[yyyy/MM/dd HH:mm:ss] "));
35 |             sb.Append(message);
36 |             sb.Append('\n');
37 |         }
38 | 
39 | 
40 |         // Save the log into a file
41 |         public void Save()
42 |         {
43 |             String outputFile = $@"{Config.ExecutableLocation()}\log.txt";
44 | 
45 |             File.AppendAllText(outputFile, sb.ToString(), new UTF8Encoding(false));
46 |         }
47 | 
48 |     }
49 | }
50 | 


--------------------------------------------------------------------------------
/YPF Manager.sln:
--------------------------------------------------------------------------------
 1 | 
 2 | Microsoft Visual Studio Solution File, Format Version 12.00
 3 | # Visual Studio Version 16
 4 | VisualStudioVersion = 16.0.30804.86
 5 | MinimumVisualStudioVersion = 10.0.40219.1
 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "YPF Manager", "YPF Manager\YPF Manager.csproj", "{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}"
 7 | EndProject
 8 | Global
 9 | 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
10 | 		Debug|Any CPU = Debug|Any CPU
11 | 		Release|Any CPU = Release|Any CPU
12 | 	EndGlobalSection
13 | 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
14 | 		{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
15 | 		{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}.Debug|Any CPU.Build.0 = Debug|Any CPU
16 | 		{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}.Release|Any CPU.ActiveCfg = Release|Any CPU
17 | 		{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}.Release|Any CPU.Build.0 = Release|Any CPU
18 | 	EndGlobalSection
19 | 	GlobalSection(SolutionProperties) = preSolution
20 | 		HideSolutionNode = FALSE
21 | 	EndGlobalSection
22 | 	GlobalSection(ExtensibilityGlobals) = postSolution
23 | 		SolutionGuid = {27B4C83D-3D23-40B9-8435-D86BC249F786}
24 | 	EndGlobalSection
25 | EndGlobal
26 | 


--------------------------------------------------------------------------------
/YPF Manager/Properties/AssemblyInfo.cs:
--------------------------------------------------------------------------------
 1 | using System.Resources;
 2 | using System.Reflection;
 3 | using System.Runtime.CompilerServices;
 4 | using System.Runtime.InteropServices;
 5 | 
 6 | // General Information about an assembly is controlled through the following
 7 | // set of attributes. Change these attribute values to modify the information
 8 | // associated with an assembly.
 9 | [assembly: AssemblyTitle("YPF Manager")]
10 | [assembly: AssemblyDescription("")]
11 | [assembly: AssemblyConfiguration("")]
12 | [assembly: AssemblyCompany("")]
13 | [assembly: AssemblyProduct("YPF Manager")]
14 | [assembly: AssemblyCopyright("Copyright ©  2020")]
15 | [assembly: AssemblyTrademark("")]
16 | [assembly: AssemblyCulture("")]
17 | 
18 | // Setting ComVisible to false makes the types in this assembly not visible
19 | // to COM components.  If you need to access a type in this assembly from
20 | // COM, set the ComVisible attribute to true on that type.
21 | [assembly: ComVisible(false)]
22 | 
23 | // The following GUID is for the ID of the typelib if this project is exposed to COM
24 | [assembly: Guid("a4127de7-0837-4139-bfe2-a6c2dc7b3c29")]
25 | 
26 | // Version information for an assembly consists of the following four values:
27 | //
28 | //      Major Version
29 | //      Minor Version
30 | //      Build Number
31 | //      Revision
32 | //
33 | // You can specify all the values or you can default the Build and Revision Numbers
34 | // by using the '*' as shown below:
35 | // [assembly: AssemblyVersion("1.0.*")]
36 | [assembly: AssemblyVersion("0.1.0.0")]
37 | [assembly: AssemblyFileVersion("0.1.0.0")]
38 | [assembly: NeutralResourcesLanguage("en")]
39 | 


--------------------------------------------------------------------------------
/YPF Manager/Util.cs:
--------------------------------------------------------------------------------
 1 | using Ionic.Zlib;
 2 | using System;
 3 | using System.IO;
 4 | 
 5 | namespace Ypf_Manager
 6 | {
 7 |     public static class Util
 8 |     {
 9 | 
10 |         //
11 |         // Function(s)
12 |         //
13 | 
14 |         // Returns the one complement of a given byte
15 |         public static Byte OneComplement(Byte i)
16 |         {
17 |             return (Byte)~i;
18 |         }
19 | 
20 | 
21 |         // Copy data from input stream to ouput stream
22 |         public static void CopyStream(Stream inputStream, Stream outputStream, Int64 length)
23 |         {
24 |             Int32 bufferSize = 4096;
25 | 
26 |             Byte[] buffer = new Byte[bufferSize];
27 | 
28 |             Int64 bytesToRead = length;
29 | 
30 |             while (bytesToRead > 0)
31 |             {
32 |                 Int32 bytesRead = inputStream.Read(buffer, 0, (Int32)Math.Min(bufferSize, bytesToRead));
33 | 
34 |                 outputStream.Write(buffer, 0, bytesRead);
35 | 
36 |                 bytesToRead -= bytesRead;
37 |             }
38 |         }
39 | 
40 | 
41 |         // Decompress zlib stream to memory stream
42 |         public static MemoryStream DecompressZlibStream(Stream inputStream, int decompressedSize)
43 |         {
44 |             MemoryStream decompressedFileStream = new MemoryStream(decompressedSize);
45 | 
46 |             using (ZlibStream decompressionStream = new ZlibStream(inputStream, CompressionMode.Decompress, true))
47 |             {
48 |                 decompressionStream.CopyTo(decompressedFileStream);
49 |             }
50 | 
51 |             decompressedFileStream.Position = 0;
52 | 
53 |             if (decompressedFileStream.Length != decompressedSize)
54 |             {
55 |                 throw new Exception("Invalid Decompressed File Size");
56 |             }
57 | 
58 |             return decompressedFileStream;
59 |         }
60 | 
61 | 
62 |         // Compress stream to zlib memory stream
63 |         public static MemoryStream CompressZlibStream(Stream inputStream)
64 |         {
65 |             MemoryStream compressedFileStream = new MemoryStream();
66 | 
67 |             using (ZlibStream compressionStream = new ZlibStream(compressedFileStream, CompressionMode.Compress, CompressionLevel.Level9, true))
68 |             {
69 |                 CopyStream(inputStream, compressionStream, inputStream.Length);
70 |             }
71 | 
72 |             return compressedFileStream;
73 |         }
74 | 
75 |     }
76 | }
77 | 


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/YPF Manager/Checksum/MurmurHash2.cs:
--------------------------------------------------------------------------------
  1 | /*
  2 |  *  Source: https://github.com/abrandoned/murmur2/blob/master/MurmurHash2.c
  3 |  *
  4 |  *  MurmurHash2, by Austin Appleby
  5 |  *  Note - This code makes a few assumptions about how your machine behaves -
  6 |  *  1. We can read a 4-byte value from any address without crashing
  7 |  *  2. sizeof(int) == 4
  8 |  *   
  9 |  *  And it has a few limitations -
 10 |  *   
 11 |  *  1.  It will not work incrementally.
 12 |  *  2.  It will not produce the same results on little-endian and big-endian
 13 |  *      machines.
 14 | */
 15 | 
 16 | using System;
 17 | 
 18 | namespace Ypf_Manager
 19 | {
 20 |     class MurmurHash2 : Checksum
 21 |     {
 22 | 
 23 |         //
 24 |         // Variable(s)
 25 |         //
 26 | 
 27 |         public override string Name => "MurmurHash2";
 28 | 
 29 | 
 30 |         //
 31 |         // Function(s)
 32 |         //
 33 | 
 34 |         // Compute byte array hash with MurmurHash2 algorithm
 35 |         public override UInt32 ComputeHash(byte[] data)
 36 |         {
 37 |             //
 38 |             // Original function parameters
 39 |             //
 40 | 
 41 |             UInt32 seed = 0;
 42 |             Int32 len = data.Length;
 43 | 
 44 | 
 45 |             //
 46 |             // MurmurHash2 compute hash
 47 |             //
 48 | 
 49 |             // 'm' and 'r' are mixing constants generated offline
 50 |             // They're not really 'magic', they just happen to work well
 51 |             const UInt32 m = 0x5bd1e995;
 52 |             const Int32 r = 24;
 53 | 
 54 |             // Initialize the hash to a 'random' value
 55 |             UInt32 h = seed ^ (UInt32)len;
 56 | 
 57 |             // Mix 4 bytes at a time into the hash
 58 |             Int32 dataIndex = 0;
 59 | 
 60 |             while (len >= 4)
 61 |             {
 62 |                 UInt32 k = BitConverter.ToUInt32(data, dataIndex);
 63 | 
 64 |                 k *= m;
 65 |                 k ^= k >> r;
 66 |                 k *= m;
 67 | 
 68 |                 h *= m;
 69 |                 h ^= k;
 70 | 
 71 |                 dataIndex += 4;
 72 |                 len -= 4;
 73 |             }
 74 | 
 75 |             // Handle the last few bytes of the input array
 76 |             if (len == 3)
 77 |             {
 78 |                 h ^= (UInt32)(data[dataIndex + 2] << 16);
 79 |                 len--;
 80 |             }
 81 | 
 82 |             if (len == 2)
 83 |             {
 84 |                 h ^= (UInt32)(data[dataIndex + 1] << 8);
 85 |                 len--;
 86 |             }
 87 | 
 88 |             if (len == 1)
 89 |             {
 90 |                 h ^= data[dataIndex];
 91 | 
 92 |                 h *= m;
 93 |             }
 94 | 
 95 |             // Do a few final mixes of the hash to ensure the last few bytes are well-incorporated
 96 |             h ^= h >> 13;
 97 |             h *= m;
 98 |             h ^= h >> 15;
 99 | 
100 |             return h;
101 |         }
102 | 
103 |     }
104 | }
105 | 


--------------------------------------------------------------------------------
/YPF Manager/YPF Manager.csproj:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 3 |   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
 4 |   <PropertyGroup>
 5 |     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
 6 |     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
 7 |     <ProjectGuid>{A4127DE7-0837-4139-BFE2-A6C2DC7B3C29}</ProjectGuid>
 8 |     <OutputType>Exe</OutputType>
 9 |     <RootNamespace>Ypf_Manager</RootNamespace>
10 |     <AssemblyName>YPF Manager</AssemblyName>
11 |     <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
12 |     <FileAlignment>512</FileAlignment>
13 |     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
14 |     <Deterministic>true</Deterministic>
15 |   </PropertyGroup>
16 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
17 |     <PlatformTarget>AnyCPU</PlatformTarget>
18 |     <DebugSymbols>true</DebugSymbols>
19 |     <DebugType>full</DebugType>
20 |     <Optimize>false</Optimize>
21 |     <OutputPath>bin\Debug\</OutputPath>
22 |     <DefineConstants>DEBUG;TRACE</DefineConstants>
23 |     <ErrorReport>prompt</ErrorReport>
24 |     <WarningLevel>4</WarningLevel>
25 |     <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
26 |   </PropertyGroup>
27 |   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
28 |     <PlatformTarget>AnyCPU</PlatformTarget>
29 |     <DebugType>pdbonly</DebugType>
30 |     <Optimize>true</Optimize>
31 |     <OutputPath>bin\Release\</OutputPath>
32 |     <DefineConstants>TRACE</DefineConstants>
33 |     <ErrorReport>prompt</ErrorReport>
34 |     <WarningLevel>4</WarningLevel>
35 |     <AllowUnsafeBlocks>false</AllowUnsafeBlocks>
36 |   </PropertyGroup>
37 |   <ItemGroup>
38 |     <Reference Include="DotNetZip, Version=1.15.0.0, Culture=neutral, PublicKeyToken=6583c7c814667745, processorArchitecture=MSIL">
39 |       <HintPath>..\packages\DotNetZip.1.15.0\lib\net40\DotNetZip.dll</HintPath>
40 |     </Reference>
41 |     <Reference Include="System" />
42 |     <Reference Include="System.Core" />
43 |     <Reference Include="System.Xml.Linq" />
44 |     <Reference Include="System.Data.DataSetExtensions" />
45 |     <Reference Include="Microsoft.CSharp" />
46 |     <Reference Include="System.Data" />
47 |     <Reference Include="System.Net.Http" />
48 |     <Reference Include="System.Xml" />
49 |   </ItemGroup>
50 |   <ItemGroup>
51 |     <Compile Include="Checksum\Adler32.cs" />
52 |     <Compile Include="Checksum\Crc32.cs" />
53 |     <Compile Include="Config.cs" />
54 |     <Compile Include="Log.cs" />
55 |     <Compile Include="Util.cs" />
56 |     <Compile Include="YPF\YPFArchive.cs" />
57 |     <Compile Include="YPF\YPFEntry.cs" />
58 |     <Compile Include="YPF\YPFHeader.cs" />
59 |     <Compile Include="Checksum\Checksum.cs" />
60 |     <Compile Include="Checksum\MurmurHash2.cs" />
61 |     <Compile Include="Program.cs" />
62 |     <Compile Include="Properties\AssemblyInfo.cs" />
63 |   </ItemGroup>
64 |   <ItemGroup>
65 |     <None Include="App.config" />
66 |     <None Include="packages.config" />
67 |   </ItemGroup>
68 |   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
69 |   <PropertyGroup>
70 |     <PreBuildEvent>
71 |     </PreBuildEvent>
72 |   </PropertyGroup>
73 |   <PropertyGroup>
74 |     <PostBuildEvent>
75 |     </PostBuildEvent>
76 |   </PropertyGroup>
77 | </Project>


--------------------------------------------------------------------------------
/YPF Manager/Program.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.IO;
  3 | 
  4 | namespace Ypf_Manager
  5 | {
  6 |     class Program
  7 |     {
  8 | 
  9 |         //
 10 |         // Function(s)
 11 |         //
 12 | 
 13 |         static void Main(string[] args)
 14 |         {
 15 |             // Set variables
 16 |             Log log = new Log();
 17 |             Config config = new Config();
 18 | 
 19 |             // Header
 20 |             Console.WriteLine("YPF Manager v0.1");
 21 |             Console.WriteLine();
 22 |             Console.WriteLine();
 23 | 
 24 |             try
 25 |             {
 26 |                 // Scan args
 27 |                 config.Set(args);
 28 | 
 29 |                 // Process current operation mode
 30 |                 switch (config.Mode)
 31 |                 {
 32 |                     case Config.OperationMode.CreateArchive:
 33 | 
 34 |                         foreach (String f in config.FoldersToProcess)
 35 |                         {
 36 |                             YPFArchive.Create(f, $"{f}.ypf", config.EngineVersion);
 37 |                         }
 38 |                         break;
 39 | 
 40 |                     case Config.OperationMode.ExtractArchive:
 41 | 
 42 |                         foreach (String f in config.FilesToProcess)
 43 |                         {
 44 |                             YPFArchive.Extract(f, $@"{Path.GetDirectoryName(f)}\{Path.GetFileNameWithoutExtension(f)}");
 45 |                         }
 46 |                         break;
 47 | 
 48 |                     case Config.OperationMode.PrintArchiveInfo:
 49 | 
 50 |                         foreach (String f in config.FilesToProcess)
 51 |                         {
 52 |                             YPFArchive.PrintInfo(f, config.SkipDataIntegrityValidationOnPrintInfo);
 53 |                         }
 54 |                         break;
 55 | 
 56 |                     case Config.OperationMode.Help:
 57 | 
 58 |                         Console.WriteLine("[DESCRIPTION]");
 59 |                         Console.WriteLine("Manage your YPF archives with this tool.");
 60 |                         Console.WriteLine();
 61 | 
 62 |                         Console.WriteLine("[USAGE]");
 63 |                         Console.WriteLine("Create archive:\t\t-c <folders_list> -v <version> [options]");
 64 |                         Console.WriteLine("Extract archive:\t-e <files_list> [options]");
 65 |                         Console.WriteLine("Print info:\t\t-p <files_list> [options]");
 66 |                         Console.WriteLine();
 67 | 
 68 |                         Console.WriteLine("[OPTIONS]");
 69 |                         Console.WriteLine("\t-c <folders_list>\tSet create archive mode");
 70 |                         Console.WriteLine("\t-e <files_list>\t\tSet extract archive mode");
 71 |                         Console.WriteLine("\t-p <files_list>\t\tSet print archive info mode");
 72 |                         Console.WriteLine("\t-v <version>\t\tSet the YU-RIS engine target version of the archive file");
 73 |                         Console.WriteLine("\t-w\t\t\tWait for user input before exit");
 74 |                         Console.WriteLine("\t-sdc\t\t\tSkip data integrity validation (Print info only)");
 75 | 
 76 |                         break;
 77 |                 }
 78 |             }
 79 |             catch (Exception ex)
 80 |             {
 81 |                 // Save error to log
 82 |                 log.Add(ex.Message);
 83 |                 log.Save();
 84 | 
 85 |                 // Print error to console
 86 |                 Console.WriteLine(ex.Message);
 87 |             }
 88 | 
 89 |             // Wait for user input if -w argument is provided
 90 |             if (config.WaitForUserInputBeforeExit)
 91 |             {
 92 |                 Console.WriteLine();
 93 |                 Console.WriteLine("Press enter to exit");
 94 |                 Console.ReadLine();
 95 |             }
 96 |         }
 97 | 
 98 |     }
 99 | }
100 | 


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/YPF Manager/Checksum/Crc32.cs:
--------------------------------------------------------------------------------
 1 | // Source: https://en.wikipedia.org/wiki/Cyclic_redundancy_check
 2 | 
 3 | using System;
 4 | 
 5 | namespace Ypf_Manager
 6 | {
 7 | 
 8 |     class Crc32 : Checksum
 9 |     {
10 | 
11 |         //
12 |         // Variable(s)
13 |         //
14 | 
15 |         public override string Name => "CRC32";
16 | 
17 |         private readonly UInt32[] Crc32Table =
18 |         {
19 |             0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
20 |             0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
21 |             0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
22 |             0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
23 |             0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
24 |             0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
25 |             0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
26 |             0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924, 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
27 |             0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
28 |             0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
29 |             0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
30 |             0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
31 |             0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
32 |             0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
33 |             0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
34 |             0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
35 |             0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
36 |             0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
37 |             0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
38 |             0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
39 |             0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
40 |             0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
41 |             0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236, 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
42 |             0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
43 |             0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
44 |             0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
45 |             0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
46 |             0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
47 |             0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
48 |             0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
49 |             0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
50 |             0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
51 |         };
52 | 
53 | 
54 |         //
55 |         // Function(s)
56 |         //
57 | 
58 |         // Compute byte array hash with CRC-32 algorithm
59 |         public override UInt32 ComputeHash(byte[] data)
60 |         {
61 |             // Initialize CRC-32 to starting value
62 |             UInt32 crc32 = 0xffffffff;
63 | 
64 |             for (int i = 0; i < data.Length; i++)
65 |             {
66 |                 // Crc32Table is an array of 256 32-bit constants
67 |                 crc32 = (crc32 >> 8) ^ Crc32Table[(byte)((crc32 ^ data[i]) & 0xFF)];
68 |             }
69 | 
70 |             // Finalize the CRC-32 value by inverting all the bits
71 |             return ~crc32;
72 |         }
73 | 
74 |     }
75 | }
76 | 


--------------------------------------------------------------------------------
/YPF Manager/Config.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.Collections.Generic;
  3 | using System.IO;
  4 | 
  5 | namespace Ypf_Manager
  6 | {
  7 |     class Config
  8 |     {
  9 | 
 10 |         //
 11 |         // Enum(s)
 12 |         //
 13 | 
 14 |         public enum OperationMode
 15 |         {
 16 |             CreateArchive = 0,
 17 |             ExtractArchive = 1,
 18 |             PrintArchiveInfo = 2,
 19 |             Help = 3
 20 |         }
 21 | 
 22 | 
 23 |         //
 24 |         // Variable(s)
 25 |         //
 26 | 
 27 |         public static String ExecutableLocation()
 28 |         {
 29 |             return Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location);
 30 |         }
 31 |         public OperationMode Mode { get; set; }
 32 | 
 33 |         public Boolean WaitForUserInputBeforeExit { get; set; }
 34 | 
 35 |         public Boolean SkipDataIntegrityValidationOnPrintInfo { get; set; }
 36 | 
 37 |         public Int32 EngineVersion { get; set; }
 38 | 
 39 |         public List<String> FilesToProcess { get; set; }
 40 | 
 41 |         public List<String> FoldersToProcess { get; set; }
 42 | 
 43 | 
 44 |         //
 45 |         // Constructor(s)
 46 |         //
 47 | 
 48 |         public Config()
 49 |         {
 50 |             //
 51 |             // Set initial values
 52 |             //
 53 | 
 54 |             Mode = OperationMode.Help;
 55 | 
 56 |             WaitForUserInputBeforeExit = false;
 57 | 
 58 |             SkipDataIntegrityValidationOnPrintInfo = false;
 59 | 
 60 |             EngineVersion = 0;
 61 | 
 62 |             FilesToProcess = new List<String>();
 63 |             FoldersToProcess = new List<String>();
 64 |         }
 65 | 
 66 | 
 67 |         //
 68 |         // Function(s)
 69 |         //
 70 | 
 71 |         // Scan args to set options
 72 |         public void Set(String[] args)
 73 |         {
 74 |             //
 75 |             // Scan arguments
 76 |             //
 77 | 
 78 |             for (int i = 0; i < args.Length; i++)
 79 |             {
 80 |                 String currentArg = args[i];
 81 | 
 82 |                 if (currentArg == "-c")
 83 |                 {
 84 |                     // Create archive
 85 |                     Mode = OperationMode.CreateArchive;
 86 |                 }
 87 |                 else if (currentArg == "-e")
 88 |                 {
 89 |                     // Extract archive
 90 |                     Mode = OperationMode.ExtractArchive;
 91 |                 }
 92 |                 else if (currentArg == "-p")
 93 |                 {
 94 |                     // Print archive info
 95 |                     Mode = OperationMode.PrintArchiveInfo;
 96 |                 }
 97 |                 else if (currentArg == "-v")
 98 |                 {
 99 |                     //
100 |                     // Set engine version
101 |                     //
102 | 
103 |                     // When -v is provided, the next argument is the engine version
104 |                     i++;
105 | 
106 |                     if (i == args.Length)
107 |                     {
108 |                         // -v is the last argument and no version is provided
109 |                         throw new Exception("Can't find engine version");
110 |                     }
111 | 
112 |                     // Try parsing the provided engine version
113 |                     if (Int32.TryParse(args[i], out int engine))
114 |                     {
115 |                         EngineVersion = engine;
116 |                     }
117 |                     else
118 |                     {
119 |                         throw new Exception("Failed parsing engine version");
120 |                     }
121 |                 }
122 |                 else if (currentArg == "-w")
123 |                 {
124 |                     // Wait for user input before exit
125 |                     WaitForUserInputBeforeExit = true;
126 |                 }
127 |                 else if (currentArg == "-sdc")
128 |                 {
129 |                     // Skip data check
130 |                     SkipDataIntegrityValidationOnPrintInfo = true;
131 |                 }
132 |                 else if (currentArg.EndsWith(".ypf") && File.Exists(currentArg))
133 |                 {
134 |                     // Detected file
135 |                     FilesToProcess.Add(Path.GetFullPath(currentArg));
136 |                 }
137 |                 else if (Directory.Exists(currentArg))
138 |                 {
139 |                     // Detected folder
140 |                     FoldersToProcess.Add(Path.GetFullPath(currentArg));
141 |                 }
142 |             }
143 | 
144 | 
145 |             //
146 |             // Detect edge cases
147 |             //
148 | 
149 |             if ((Mode == OperationMode.ExtractArchive || Mode == OperationMode.PrintArchiveInfo) && FilesToProcess.Count == 0)
150 |             {
151 |                 throw new Exception("Can't find files to process");
152 |             }
153 |             else if (Mode == OperationMode.CreateArchive && FoldersToProcess.Count == 0)
154 |             {
155 |                 throw new Exception("Can't find folders to process");
156 |             }
157 |         }
158 | 
159 |     }
160 | }
161 | 


--------------------------------------------------------------------------------
/YPF Manager/Checksum/Adler32.cs:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Source: https://github.com/madler/zlib/blob/master/adler32.c
  3 |  *
  4 |  *  adler32.c -- compute the Adler-32 checksum of a data stream
  5 |  *
  6 |  *  Copyright (C) 1995-2011, 2016 Mark Adler
  7 |  *
  8 |  *  This software is provided 'as-is', without any express or implied
  9 |  *  warranty.  In no event will the authors be held liable for any damages
 10 |  *  arising from the use of this software.
 11 |  *
 12 |  *  Permission is granted to anyone to use this software for any purpose,
 13 |  *  including commercial applications, and to alter it and redistribute it
 14 |  *  freely, subject to the following restrictions:
 15 |  *
 16 |  *  1. The origin of this software must not be misrepresented; you must not
 17 |  *      claim that you wrote the original software. If you use this software
 18 |  *      in a product, an acknowledgment in the product documentation would be
 19 |  *      appreciated but is not required.
 20 |  *  2. Altered source versions must be plainly marked as such, and must not be
 21 |  *      misrepresented as being the original software.
 22 |  *  3. This notice may not be removed or altered from any source distribution.
 23 |  *
 24 |  *  Jean-loup Gailly        Mark Adler
 25 |  *  jloup@gzip.org          madler@alumni.caltech.edu
 26 |  *
 27 |  *  The data format used by the zlib library is described by RFCs (Request for
 28 |  *  Comments) 1950 to 1952 in the files http://tools.ietf.org/html/rfc1950
 29 |  *  (zlib format), rfc1951 (deflate format) and rfc1952 (gzip format).
 30 | */
 31 | 
 32 | using System;
 33 | 
 34 | namespace Ypf_Manager
 35 | {
 36 | 
 37 |     class Adler32 : Checksum
 38 |     {
 39 | 
 40 |         //
 41 |         // Variable(s)
 42 |         //
 43 | 
 44 |         public override string Name => "Adler32";
 45 | 
 46 |         // Largest prime smaller than 65536
 47 |         const UInt32 BASE = 65521;
 48 | 
 49 |         const Int32 NMAX = 5552;
 50 | 
 51 | 
 52 |         //
 53 |         // Function(s)
 54 |         //
 55 | 
 56 |         // Compute byte array hash with Adler32 algorithm
 57 |         public override UInt32 ComputeHash(byte[] data)
 58 |         {
 59 |             //
 60 |             // Original function parameters
 61 |             //
 62 | 
 63 |             UInt32 adler = 1;
 64 |             Int32 dataIndex = 0;
 65 |             Int32 len = data.Length;
 66 | 
 67 | 
 68 |             //
 69 |             // Adler32 compute hash
 70 |             //
 71 | 
 72 |             // Split Adler-32 into component sums
 73 |             UInt32 sum2 = (adler >> 16) & 0xffff;
 74 |             adler &= 0xffff;
 75 | 
 76 |             // In case user likes doing a byte at a time, keep it fast
 77 |             if (len == 1)
 78 |             {
 79 |                 adler += data[0];
 80 |                 if (adler >= BASE)
 81 |                     adler -= BASE;
 82 |                 sum2 += adler;
 83 |                 if (sum2 >= BASE)
 84 |                     sum2 -= BASE;
 85 |                 return adler | (sum2 << 16);
 86 |             }
 87 | 
 88 |             // Initial Adler-32 value (deferred check for len == 1 speed)
 89 |             if (len == 0)
 90 |                 return 1;
 91 | 
 92 |             // In case short lengths are provided, keep it somewhat fast
 93 |             if (len < 16)
 94 |             {
 95 |                 while (0 != len--)
 96 |                 {
 97 |                     adler += data[dataIndex++];
 98 |                     sum2 += adler;
 99 |                 }
100 |                 if (adler >= BASE)
101 |                     adler -= BASE;
102 | 
103 |                 // Only added so many BASE's
104 |                 sum2 %= BASE;
105 | 
106 |                 return adler | (sum2 << 16);
107 |             }
108 | 
109 |             // Do length NMAX blocks -- requires just one modulo operation
110 |             while (len >= NMAX)
111 |             {
112 |                 len -= NMAX;
113 | 
114 |                 // NMAX is divisible by 16
115 |                 Int32 n = NMAX / 16;
116 | 
117 |                 do
118 |                 {
119 |                     // 16 sums unrolled
120 | 
121 |                     // DO16(buf);
122 |                     for (int i = 0; i < 16; i++)
123 |                     {
124 |                         adler += data[dataIndex++]; sum2 += adler;
125 |                     }
126 |                 } while (0 != --n);
127 |                 adler %= BASE;
128 |                 sum2 %= BASE;
129 |             }
130 | 
131 |             // Do remaining bytes (less than NMAX, still just one modulo)
132 |             if (0 != len)
133 |             {
134 |                 // Avoid modulos if none remaining
135 |                 while (len >= 16)
136 |                 {
137 |                     len -= 16;
138 | 
139 |                     // DO16(buf);
140 |                     for (int i = 0; i < 16; i++)
141 |                     {
142 |                         adler += data[dataIndex++]; sum2 += adler;
143 |                     }
144 |                 }
145 |                 while (0 != len--)
146 |                 {
147 |                     adler += data[dataIndex++];
148 |                     sum2 += adler;
149 |                 }
150 |                 adler %= BASE;
151 |                 sum2 %= BASE;
152 |             }
153 | 
154 |             // Return recombined sums
155 |             return adler | (sum2 << 16);
156 |         }
157 | 
158 |     }
159 | }
160 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
  1 | ## Ignore Visual Studio temporary files, build results, and
  2 | ## files generated by popular Visual Studio add-ons.
  3 | ##
  4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
  5 | 
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  7 | *.rsuser
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 10 | *.userosscache
 11 | *.sln.docstates
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 14 | *.userprefs
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 17 | mono_crash.*
 18 | 
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 20 | [Dd]ebug/
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 22 | [Rr]elease/
 23 | [Rr]eleases/
 24 | x64/
 25 | x86/
 26 | [Ww][Ii][Nn]32/
 27 | [Aa][Rr][Mm]/
 28 | [Aa][Rr][Mm]64/
 29 | bld/
 30 | [Bb]in/
 31 | [Oo]bj/
 32 | [Ll]og/
 33 | [Ll]ogs/
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 36 | .vs/
 37 | # Uncomment if you have tasks that create the project's static files in wwwroot
 38 | #wwwroot/
 39 | 
 40 | # Visual Studio 2017 auto generated files
 41 | Generated\ Files/
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 43 | # MSTest test Results
 44 | [Tt]est[Rr]esult*/
 45 | [Bb]uild[Ll]og.*
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 47 | # NUnit
 48 | *.VisualState.xml
 49 | TestResult.xml
 50 | nunit-*.xml
 51 | 
 52 | # Build Results of an ATL Project
 53 | [Dd]ebugPS/
 54 | [Rr]eleasePS/
 55 | dlldata.c
 56 | 
 57 | # Benchmark Results
 58 | BenchmarkDotNet.Artifacts/
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 60 | # .NET Core
 61 | project.lock.json
 62 | project.fragment.lock.json
 63 | artifacts/
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 65 | # ASP.NET Scaffolding
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 68 | # StyleCop
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 71 | # Files built by Visual Studio
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 75 | *.ilk
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101 | _Chutzpah*
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124 | $tf/
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129 | # ReSharper is a .NET coding add-in
130 | _ReSharper*/
131 | *.[Rr]e[Ss]harper
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135 | _TeamCity*
136 | 
137 | # DotCover is a Code Coverage Tool
138 | *.dotCover
139 | 
140 | # AxoCover is a Code Coverage Tool
141 | .axoCover/*
142 | !.axoCover/settings.json
143 | 
144 | # Coverlet is a free, cross platform Code Coverage Tool
145 | coverage*.json
146 | coverage*.xml
147 | coverage*.info
148 | 
149 | # Visual Studio code coverage results
150 | *.coverage
151 | *.coveragexml
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154 | _NCrunch_*
155 | .*crunch*.local.xml
156 | nCrunchTemp_*
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159 | *.mm.*
160 | AutoTest.Net/
161 | 
162 | # Web workbench (sass)
163 | .sass-cache/
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165 | # Installshield output folder
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168 | # DocProject is a documentation generator add-in
169 | DocProject/buildhelp/
170 | DocProject/Help/*.HxT
171 | DocProject/Help/*.HxC
172 | DocProject/Help/*.hhc
173 | DocProject/Help/*.hhk
174 | DocProject/Help/*.hhp
175 | DocProject/Help/Html2
176 | DocProject/Help/html
177 | 
178 | # Click-Once directory
179 | publish/
180 | 
181 | # Publish Web Output
182 | *.[Pp]ublish.xml
183 | *.azurePubxml
184 | # Note: Comment the next line if you want to checkin your web deploy settings,
185 | # but database connection strings (with potential passwords) will be unencrypted
186 | *.pubxml
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188 | 
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191 | # in these scripts will be unencrypted
192 | PublishScripts/
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194 | # NuGet Packages
195 | *.nupkg
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197 | *.snupkg
198 | # The packages folder can be ignored because of Package Restore
199 | **/[Pp]ackages/*
200 | # except build/, which is used as an MSBuild target.
201 | !**/[Pp]ackages/build/
202 | # Uncomment if necessary however generally it will be regenerated when needed
203 | #!**/[Pp]ackages/repositories.config
204 | # NuGet v3's project.json files produces more ignorable files
205 | *.nuget.props
206 | *.nuget.targets
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208 | # Microsoft Azure Build Output
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230 | 
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234 | *~
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240 | orleans.codegen.cs
241 | 
242 | # Including strong name files can present a security risk
243 | # (https://github.com/github/gitignore/pull/2483#issue-259490424)
244 | #*.snk
245 | 
246 | # Since there are multiple workflows, uncomment next line to ignore bower_components
247 | # (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
248 | #bower_components/
249 | 
250 | # RIA/Silverlight projects
251 | Generated_Code/
252 | 
253 | # Backup & report files from converting an old project file
254 | # to a newer Visual Studio version. Backup files are not needed,
255 | # because we have git ;-)
256 | _UpgradeReport_Files/
257 | Backup*/
258 | UpgradeLog*.XML
259 | UpgradeLog*.htm
260 | ServiceFabricBackup/
261 | *.rptproj.bak
262 | 
263 | # SQL Server files
264 | *.mdf
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268 | # Business Intelligence projects
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271 | *.bim_*.settings
272 | *.rptproj.rsuser
273 | *- [Bb]ackup.rdl
274 | *- [Bb]ackup ([0-9]).rdl
275 | *- [Bb]ackup ([0-9][0-9]).rdl
276 | 
277 | # Microsoft Fakes
278 | FakesAssemblies/
279 | 
280 | # GhostDoc plugin setting file
281 | *.GhostDoc.xml
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283 | # Node.js Tools for Visual Studio
284 | .ntvs_analysis.dat
285 | node_modules/
286 | 
287 | # Visual Studio 6 build log
288 | *.plg
289 | 
290 | # Visual Studio 6 workspace options file
291 | *.opt
292 | 
293 | # Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
294 | *.vbw
295 | 
296 | # Visual Studio LightSwitch build output
297 | **/*.HTMLClient/GeneratedArtifacts
298 | **/*.DesktopClient/GeneratedArtifacts
299 | **/*.DesktopClient/ModelManifest.xml
300 | **/*.Server/GeneratedArtifacts
301 | **/*.Server/ModelManifest.xml
302 | _Pvt_Extensions
303 | 
304 | # Paket dependency manager
305 | .paket/paket.exe
306 | paket-files/
307 | 
308 | # FAKE - F# Make
309 | .fake/
310 | 
311 | # CodeRush personal settings
312 | .cr/personal
313 | 
314 | # Python Tools for Visual Studio (PTVS)
315 | __pycache__/
316 | *.pyc
317 | 
318 | # Cake - Uncomment if you are using it
319 | # tools/**
320 | # !tools/packages.config
321 | 
322 | # Tabs Studio
323 | *.tss
324 | 
325 | # Telerik's JustMock configuration file
326 | *.jmconfig
327 | 
328 | # BizTalk build output
329 | *.btp.cs
330 | *.btm.cs
331 | *.odx.cs
332 | *.xsd.cs
333 | 
334 | # OpenCover UI analysis results
335 | OpenCover/
336 | 
337 | # Azure Stream Analytics local run output
338 | ASALocalRun/
339 | 
340 | # MSBuild Binary and Structured Log
341 | *.binlog
342 | 
343 | # NVidia Nsight GPU debugger configuration file
344 | *.nvuser
345 | 
346 | # MFractors (Xamarin productivity tool) working folder
347 | .mfractor/
348 | 
349 | # Local History for Visual Studio
350 | .localhistory/
351 | 
352 | # BeatPulse healthcheck temp database
353 | healthchecksdb
354 | 
355 | # Backup folder for Package Reference Convert tool in Visual Studio 2017
356 | MigrationBackup/
357 | 
358 | # Ionide (cross platform F# VS Code tools) working folder
359 | .ionide/
360 | 
361 | # Fody - auto-generated XML schema
362 | FodyWeavers.xsd


--------------------------------------------------------------------------------
/YPF Manager/YPF/YPFHeader.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.Collections.Generic;
  3 | using System.IO;
  4 | using System.Linq;
  5 | using System.Text;
  6 | 
  7 | namespace Ypf_Manager
  8 | {
  9 |     class YPFHeader
 10 |     {
 11 | 
 12 |         //
 13 |         // Variable(s)
 14 |         //
 15 | 
 16 |         // YPF\0
 17 |         public byte[] Signature { get { return new byte[] { 0x59, 0x50, 0x46, 0x00 }; } }
 18 | 
 19 |         private Int32 _version;
 20 | 
 21 |         public Int32 Version
 22 |         {
 23 |             get => _version;
 24 |             set
 25 |             {
 26 |                 if (value < 234 || value > 500)
 27 |                 {
 28 |                     throw new Exception($"Version {value} not supported");
 29 |                 }
 30 | 
 31 |                 _version = value;
 32 | 
 33 |                 SetLengthSwappingTable();
 34 |                 SetChecksum();
 35 |                 AssumeFileNameEncryptionKey();
 36 |             }
 37 |         }
 38 | 
 39 |         public Int32 ArchivedFilesHeaderSize { get; set; }
 40 | 
 41 |         //Shift-JIS
 42 |         public Encoding Encoding { get { return Encoding.GetEncoding(932); } }
 43 | 
 44 |         public List<YPFEntry> ArchivedFiles { get; set; }
 45 | 
 46 |         public Checksum NameChecksum { get; private set; }
 47 | 
 48 |         public Checksum DataChecksum { get; private set; }
 49 | 
 50 |         public Byte FileNameEncryptionKey { get; set; }
 51 | 
 52 |         public Byte[] LengthSwappingTable { get; private set; }
 53 | 
 54 | 
 55 |         //
 56 |         // Constructor(s)
 57 |         //
 58 | 
 59 |         public YPFHeader()
 60 |         {
 61 |             ArchivedFiles = new List<YPFEntry>();
 62 |         }
 63 | 
 64 | 
 65 |         public YPFHeader(int version)
 66 |         {
 67 |             ArchivedFiles = new List<YPFEntry>();
 68 | 
 69 |             Version = version;
 70 |         }
 71 | 
 72 | 
 73 |         public YPFHeader(Stream inputStream)
 74 |         {
 75 |             BinaryReader inputBinaryReader = new BinaryReader(inputStream);
 76 | 
 77 |             ArchivedFiles = new List<YPFEntry>();
 78 | 
 79 |             if (!Enumerable.SequenceEqual(Signature, inputBinaryReader.ReadBytes(4)))
 80 |             {
 81 |                 throw new Exception("Invalid Archive Signature");
 82 |             }
 83 | 
 84 |             Version = inputBinaryReader.ReadInt32();
 85 |             int filesCount = inputBinaryReader.ReadInt32();
 86 |             ArchivedFilesHeaderSize = inputBinaryReader.ReadInt32();
 87 | 
 88 |             inputBinaryReader.BaseStream.Position += 16;
 89 | 
 90 |             if (filesCount <= 0)
 91 |             {
 92 |                 throw new Exception("Invalid Files Count");
 93 |             }
 94 | 
 95 |             if (ArchivedFilesHeaderSize <= 0)
 96 |             {
 97 |                 throw new Exception("Invalid Archived Files Header Size");
 98 |             }
 99 | 
100 |             ArchivedFiles.Capacity = filesCount;
101 | 
102 |             for (int i = 0; i < filesCount; i++)
103 |             {
104 |                 ArchivedFiles.Add(ReadNextEntry(inputBinaryReader));
105 |             }
106 |         }
107 | 
108 | 
109 |         //
110 |         // Function(s)
111 |         //
112 | 
113 |         // Set length swapping table
114 |         public void SetLengthSwappingTable()
115 |         {
116 |             if (Version >= 500)
117 |             {
118 |                 LengthSwappingTable = new byte[] { 0x00, 0x01, 0x02, 0x0A, 0x04, 0x05, 0x35, 0x07, 0x08, 0x0B, 0x03, 0x09, 0x10, 0x13, 0x0E, 0x0F, 0x0C, 0x18, 0x12, 0x0D, 0x2E, 0x1B, 0x16, 0x17, 0x11, 0x19, 0x1A, 0x15, 0x1E, 0x1D, 0x1C, 0x1F, 0x23, 0x21, 0x22, 0x20, 0x24, 0x25, 0x29, 0x27, 0x28, 0x26, 0x2A, 0x2B, 0x2F, 0x2D, 0x14, 0x2C, 0x30, 0x31, 0x32, 0x33, 0x34, 0x06, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF };
119 |             }
120 |             else
121 |             {
122 |                 LengthSwappingTable = new byte[] { 0x00, 0x01, 0x02, 0x48, 0x04, 0x05, 0x35, 0x07, 0x08, 0x0B, 0x0A, 0x09, 0x10, 0x13, 0x0E, 0x0F, 0x0C, 0x19, 0x12, 0x0D, 0x14, 0x1B, 0x16, 0x17, 0x18, 0x11, 0x1A, 0x15, 0x1E, 0x1D, 0x1C, 0x1F, 0x23, 0x21, 0x22, 0x20, 0x24, 0x25, 0x29, 0x27, 0x28, 0x26, 0x2A, 0x2B, 0x2F, 0x2D, 0x32, 0x2C, 0x30, 0x31, 0x2E, 0x33, 0x34, 0x06, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x03, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C, 0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF };
123 |             }
124 |         }
125 | 
126 | 
127 |         // Set the checksum algorithms
128 |         public void SetChecksum()
129 |         {
130 |             if (Version < 479)
131 |             {
132 |                 DataChecksum = new Adler32();
133 |                 NameChecksum = new Crc32();
134 |             }
135 |             else
136 |             {
137 |                 DataChecksum = new MurmurHash2();
138 |                 NameChecksum = new MurmurHash2();
139 |             }
140 |         }
141 | 
142 | 
143 |         // Assume filename xor encryption key (may not work because some versions have multiple keys)
144 |         public void AssumeFileNameEncryptionKey()
145 |         {
146 |             if (Version == 290)
147 |             {
148 |                 FileNameEncryptionKey = 0x40;
149 |             }
150 |             else if (Version >= 500)
151 |             {
152 |                 FileNameEncryptionKey = 0x36;
153 |             }
154 |             else
155 |             {
156 |                 FileNameEncryptionKey = 0x00;
157 |             }
158 |         }
159 | 
160 | 
161 |         // Validate data integrity by checking if data checksum matches providen checksum
162 |         public void ValidateDataIntegrity(Stream inputStream, Int64 position, Int32 length, UInt32 checksum)
163 |         {
164 |             inputStream.Position = position;
165 | 
166 |             UInt32 calculatedDataChecksum = DataChecksum.ComputeHash(inputStream, length);
167 | 
168 |             if (checksum != calculatedDataChecksum)
169 |             {
170 |                 throw new Exception("Invalid Data Checksum / Corrupted Data");
171 |             }
172 |         }
173 | 
174 | 
175 |         // Validate name integrity by checking if name checksum matches providen checksum
176 |         public void ValidateNameIntegrity(Byte[] inputArray, UInt32 checksum)
177 |         {
178 |             UInt32 calculatedNameChecksum = NameChecksum.ComputeHash(inputArray);
179 | 
180 |             if (calculatedNameChecksum != checksum)
181 |             {
182 |                 throw new Exception("Invalid Name Checksum / Corrupted Name");
183 |             }
184 |         }
185 | 
186 | 
187 |         // Read the next entry from the provided file
188 |         public YPFEntry ReadNextEntry(BinaryReader inputBinaryReader)
189 |         {
190 |             YPFEntry entry = new YPFEntry();
191 | 
192 |             entry.NameChecksum = inputBinaryReader.ReadUInt32();
193 | 
194 |             Byte fileNameLengthEncoded = Util.OneComplement(inputBinaryReader.ReadByte());
195 |             Byte fileNameLengthDecoded = LengthSwappingTable[fileNameLengthEncoded];
196 | 
197 |             Byte[] fileNameEncoded = inputBinaryReader.ReadBytes(fileNameLengthDecoded);
198 | 
199 |             for (int i = 0; i < fileNameLengthDecoded; i++)
200 |             {
201 |                 fileNameEncoded[i] = (byte)(Util.OneComplement(fileNameEncoded[i]) ^ FileNameEncryptionKey);
202 |             }
203 | 
204 |             entry.FileName = Encoding.GetString(fileNameEncoded);
205 |             entry.Type = (YPFEntry.FileType)inputBinaryReader.ReadByte();
206 |             entry.IsCompressed = (inputBinaryReader.ReadByte() == 1);
207 |             entry.RawFileSize = inputBinaryReader.ReadInt32();
208 |             entry.CompressedFileSize = inputBinaryReader.ReadInt32();
209 | 
210 |             if (Version < 479)
211 |             {
212 |                 entry.Offset = inputBinaryReader.ReadInt32();
213 |             }
214 |             else
215 |             {
216 |                 entry.Offset = inputBinaryReader.ReadInt64();
217 |             }
218 | 
219 |             entry.DataChecksum = inputBinaryReader.ReadUInt32();
220 | 
221 |             ValidateNameIntegrity(fileNameEncoded, entry.NameChecksum);
222 | 
223 |             if (!Enum.IsDefined(typeof(YPFEntry.FileType), entry.Type))
224 |             {
225 |                 throw new Exception("Unexpected File Type");
226 |             }
227 | 
228 |             return entry;
229 |         }
230 | 
231 | 
232 |         // Find a duplicate file entry with the same checksum and size
233 |         public YPFEntry FindDuplicateEntry(UInt32 fileChecksum, Int32 fileSize)
234 |         {
235 |             return ArchivedFiles.FirstOrDefault(x => x.DataChecksum == fileChecksum && x.RawFileSize == fileSize);
236 |         }
237 | 
238 |     }
239 | }
240 | 


--------------------------------------------------------------------------------
/YPF Manager/YPF/YPFArchive.cs:
--------------------------------------------------------------------------------
  1 | using System;
  2 | using System.IO;
  3 | using System.Linq;
  4 | 
  5 | namespace Ypf_Manager
  6 | {
  7 |     static class YPFArchive
  8 |     {
  9 | 
 10 |         //
 11 |         // Function(s)
 12 |         //
 13 | 
 14 |         // Create a new archive from a given folder
 15 |         public static void Create(String inputFolder, String outputFile, Int32 version)
 16 |         {
 17 |             Console.WriteLine("[*COMPRESS*]");
 18 |             Console.WriteLine($"Folder: {inputFolder}");
 19 |             Console.WriteLine($"File: {outputFile}");
 20 |             Console.WriteLine($"Version: {version}");
 21 |             Console.WriteLine();
 22 | 
 23 |             Console.WriteLine("Initializing header");
 24 | 
 25 |             YPFHeader header = new YPFHeader(version);
 26 | 
 27 |             String[] filesToProcess = Directory.GetFiles(inputFolder, "*.*", SearchOption.AllDirectories);
 28 | 
 29 |             // Set list capacity to improve performance
 30 |             header.ArchivedFiles.Capacity = filesToProcess.Length;
 31 | 
 32 |             // Skip the constant header section
 33 |             header.ArchivedFilesHeaderSize = 32;
 34 | 
 35 |             // Process files to get their data and accurately calculate the header size
 36 |             foreach (String file in filesToProcess)
 37 |             {
 38 |                 YPFEntry entry = new YPFEntry();
 39 | 
 40 |                 String fileName = file.Substring(inputFolder.Length + 1);
 41 |                 String fileExtension = Path.GetExtension(fileName).Substring(1);
 42 | 
 43 |                 // Remove YCG extension from the filename
 44 |                 if (fileExtension == "ycg")
 45 |                 {
 46 |                     fileName = fileName.Substring(0, fileName.Length - 4);
 47 |                 }
 48 | 
 49 |                 // Detect null filename
 50 |                 // This can happen when using YCG files
 51 |                 // e.g. fileName = ".ycg"
 52 |                 if (!(fileName.Length > 0))
 53 |                 {
 54 |                     throw new Exception("Filename can't be null");
 55 |                 }
 56 | 
 57 |                 // Detect duplicated filenames (O(n^2))
 58 |                 // This can happen when using YCG and PNG files together
 59 |                 // e.g. fileName1 = "test1.png"
 60 |                 //      fileName2 = "test1.png.ycg"
 61 |                 //
 62 |                 //      since ".ycg" will be trimmed from the end, the two files will have the same name:
 63 |                 //
 64 |                 //      fileName1 = "test1.png" (PNG)
 65 |                 //      fileName2 = "test1.png" (YCG)
 66 |                 if (header.ArchivedFiles.FirstOrDefault(x => x.FileName == fileName) != null)
 67 |                 {
 68 |                     throw new Exception("Filenames must be unique");
 69 |                 }
 70 | 
 71 |                 Byte[] encodedName = header.Encoding.GetBytes(fileName);
 72 | 
 73 |                 entry.FileName = fileName;
 74 |                 entry.NameChecksum = header.NameChecksum.ComputeHash(encodedName);
 75 |                 entry.Type = Enum.IsDefined(typeof(YPFEntry.FileType), fileExtension) ? (YPFEntry.FileType)Enum.Parse(typeof(YPFEntry.FileType), fileExtension, true) : YPFEntry.FileType.text;
 76 | 
 77 |                 // Accurately calculate the entry header size
 78 |                 header.ArchivedFilesHeaderSize += 23 + encodedName.Length + (header.Version >= 479 ? 4 : 0);
 79 | 
 80 |                 header.ArchivedFiles.Add(entry);
 81 |             }
 82 | 
 83 |             // Order list by Name Checksum as expected by the archive format
 84 |             header.ArchivedFiles = header.ArchivedFiles.OrderBy(x => x.NameChecksum).ToList();
 85 | 
 86 |             using (FileStream outputFileStream = new FileStream(outputFile, FileMode.Create, FileAccess.Write, FileShare.None, 4096, FileOptions.SequentialScan))
 87 |             using (BinaryWriter outputBinaryWriter = new BinaryWriter(outputFileStream))
 88 |             {
 89 |                 // Skip header to directly write the files
 90 |                 outputFileStream.Position = header.ArchivedFilesHeaderSize;
 91 | 
 92 |                 // Read the files and write them to the archive
 93 |                 for (int i = 0; i < header.ArchivedFiles.Count; i++)
 94 |                 {
 95 |                     YPFEntry entry = header.ArchivedFiles[i];
 96 | 
 97 |                     Console.WriteLine($"Adding {entry.FileName}");
 98 | 
 99 |                     using (MemoryStream rawMemoryStream = new MemoryStream())
100 |                     {
101 |                         String filePath = $@"{inputFolder}\{entry.FileName}{(entry.Type == YPFEntry.FileType.ycg ? ".ycg" : "")}";
102 | 
103 |                         // Copy the FileStream to a MemoryStream to improve performance
104 |                         using (FileStream inputFileStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.None, 4096, FileOptions.SequentialScan))
105 |                         {
106 |                             // Check if the current file saturated the 32 filesize bits
107 |                             if (inputFileStream.Length > Int32.MaxValue)
108 |                             {
109 |                                 throw new Exception("Max filesize reached for the current YPF version");
110 |                             }
111 | 
112 |                             // Check if the current file is empty
113 |                             if (inputFileStream.Length == 0)
114 |                             {
115 |                                 throw new Exception("Empty files (0 Byte) are not supported");
116 |                             }
117 | 
118 |                             rawMemoryStream.Capacity = (Int32)inputFileStream.Length;
119 |                             Util.CopyStream(inputFileStream, rawMemoryStream, inputFileStream.Length);
120 |                         }
121 | 
122 |                         rawMemoryStream.Position = 0;
123 | 
124 |                         header.ArchivedFiles[i].Offset = outputFileStream.Position;
125 |                         header.ArchivedFiles[i].RawFileSize = (Int32)rawMemoryStream.Length;
126 | 
127 |                         using (MemoryStream compressedFileStream = Util.CompressZlibStream(rawMemoryStream))
128 |                         {
129 |                             // Check if the compressed file is smaller than the original one
130 |                             if (compressedFileStream.Length < rawMemoryStream.Length)
131 |                             {
132 |                                 compressedFileStream.Position = 0;
133 | 
134 |                                 UInt32 calculatedDataChecksum = header.DataChecksum.ComputeHash(compressedFileStream, (Int32)compressedFileStream.Length);
135 | 
136 |                                 YPFEntry duplicatedEntry = header.FindDuplicateEntry(calculatedDataChecksum, (Int32)rawMemoryStream.Length);
137 | 
138 |                                 if (duplicatedEntry != null)
139 |                                 {
140 |                                     header.ArchivedFiles[i].Offset = duplicatedEntry.Offset;
141 |                                 }
142 |                                 else
143 |                                 {
144 |                                     compressedFileStream.Position = 0;
145 | 
146 |                                     Util.CopyStream(compressedFileStream, outputFileStream, compressedFileStream.Length);
147 |                                 }
148 | 
149 |                                 header.ArchivedFiles[i].CompressedFileSize = (Int32)compressedFileStream.Length;
150 |                                 header.ArchivedFiles[i].IsCompressed = true;
151 |                                 header.ArchivedFiles[i].DataChecksum = calculatedDataChecksum;
152 |                             }
153 |                             else
154 |                             {
155 |                                 rawMemoryStream.Position = 0;
156 | 
157 |                                 UInt32 calculatedDataChecksum = header.DataChecksum.ComputeHash(rawMemoryStream, (Int32)rawMemoryStream.Length);
158 | 
159 |                                 YPFEntry duplicatedEntry = header.FindDuplicateEntry(calculatedDataChecksum, (Int32)rawMemoryStream.Length);
160 | 
161 |                                 if (duplicatedEntry != null)
162 |                                 {
163 |                                     header.ArchivedFiles[i].Offset = duplicatedEntry.Offset;
164 |                                 }
165 |                                 else
166 |                                 {
167 |                                     rawMemoryStream.Position = 0;
168 | 
169 |                                     Util.CopyStream(rawMemoryStream, outputFileStream, rawMemoryStream.Length);
170 |                                 }
171 | 
172 |                                 header.ArchivedFiles[i].CompressedFileSize = (Int32)rawMemoryStream.Length;
173 |                                 header.ArchivedFiles[i].IsCompressed = false;
174 |                                 header.ArchivedFiles[i].DataChecksum = calculatedDataChecksum;
175 |                             }
176 |                         }
177 | 
178 |                         // Check if the current file saturated the 32 offset bits
179 |                         if (header.Version < 479 && outputFileStream.Position > Int32.MaxValue)
180 |                         {
181 |                             throw new Exception("Max offset reached for the current YPF version");
182 |                         }
183 |                     }
184 |                 }
185 | 
186 | 
187 |                 //
188 |                 // Write the header since all the entry data is now known
189 |                 //
190 | 
191 |                 Console.WriteLine($"Finalizing header");
192 | 
193 |                 outputFileStream.Position = 0;
194 | 
195 |                 outputBinaryWriter.Write(header.Signature);
196 |                 outputBinaryWriter.Write(header.Version);
197 |                 outputBinaryWriter.Write(header.ArchivedFiles.Count);
198 |                 outputBinaryWriter.Write(header.ArchivedFilesHeaderSize);
199 | 
200 |                 outputFileStream.Position += 16;
201 | 
202 |                 foreach (YPFEntry entry in header.ArchivedFiles)
203 |                 {
204 |                     outputBinaryWriter.Write(entry.NameChecksum);
205 | 
206 |                     Byte[] encodedName = header.Encoding.GetBytes(entry.FileName);
207 | 
208 |                     if (encodedName.Length > 0xFF)
209 |                     {
210 |                         throw new Exception("File name length can't be longer than 255 bytes (Shift-JIS)");
211 |                     }
212 | 
213 |                     byte lengthEncoded = Util.OneComplement((byte)header.LengthSwappingTable.ToList().IndexOf((byte)encodedName.Length));
214 | 
215 |                     outputBinaryWriter.Write(lengthEncoded);
216 | 
217 |                     for (int i = 0; i < encodedName.Length; i++)
218 |                     {
219 |                         encodedName[i] = Util.OneComplement((byte)(encodedName[i] ^ header.FileNameEncryptionKey));
220 |                     }
221 | 
222 |                     outputBinaryWriter.Write(encodedName);
223 |                     outputBinaryWriter.Write((byte)entry.Type);
224 |                     outputBinaryWriter.Write(entry.IsCompressed);
225 |                     outputBinaryWriter.Write(entry.RawFileSize);
226 |                     outputBinaryWriter.Write(entry.CompressedFileSize);
227 | 
228 |                     if (header.Version < 479)
229 |                     {
230 |                         outputBinaryWriter.Write((Int32)entry.Offset);
231 |                     }
232 |                     else
233 |                     {
234 |                         outputBinaryWriter.Write(entry.Offset);
235 |                     }
236 | 
237 |                     outputBinaryWriter.Write(entry.DataChecksum);
238 |                 }
239 | 
240 |                 if (outputFileStream.Position != header.ArchivedFilesHeaderSize)
241 |                 {
242 |                     throw new Exception("Unexpected Header Size");
243 |                 }
244 |             }
245 |         }
246 | 
247 | 
248 |         // Extract an archive to the specified folder
249 |         public static void Extract(String inputFile, String outputFolder)
250 |         {
251 |             Console.WriteLine("[*EXTRACT*]");
252 |             Console.WriteLine($"File: {inputFile}");
253 |             Console.WriteLine($"Folder: {outputFolder}");
254 |             Console.WriteLine();
255 | 
256 |             using (FileStream inputFileStream = new FileStream(inputFile, FileMode.Open, FileAccess.Read, FileShare.None, 4096, FileOptions.SequentialScan))
257 |             {
258 |                 // Header data
259 |                 YPFHeader header = new YPFHeader(inputFileStream);
260 | 
261 |                 // Order by offset to improve sequential read performance
262 |                 header.ArchivedFiles = header.ArchivedFiles.OrderBy(x => x.Offset).ToList();
263 | 
264 |                 for (int i = 0; i < header.ArchivedFiles.Count; i++)
265 |                 {
266 |                     // Entry data
267 |                     YPFEntry entry = header.ArchivedFiles[i];
268 | 
269 |                     Console.WriteLine($"[{i + 1}/{header.ArchivedFiles.Count}] Extracting {entry.FileName}");
270 | 
271 |                     // Copy file to MemoryStream to improve performance
272 |                     MemoryStream entryMemoryStream = new MemoryStream(entry.CompressedFileSize);
273 |                     inputFileStream.Position = entry.Offset;
274 |                     Util.CopyStream(inputFileStream, entryMemoryStream, entry.CompressedFileSize);
275 | 
276 |                     // Validate file checksum
277 |                     header.ValidateDataIntegrity(entryMemoryStream, 0, entry.CompressedFileSize, entry.DataChecksum);
278 |                     entryMemoryStream.Position = 0;
279 | 
280 |                     // Decompress file if needed
281 |                     if (entry.IsCompressed)
282 |                     {
283 |                         entryMemoryStream = Util.DecompressZlibStream(entryMemoryStream, entry.RawFileSize);
284 |                     }
285 | 
286 |                     String customExtension = (entry.Type == YPFEntry.FileType.ycg ? ".ycg" : "");
287 |                     String outputFileName = $@"{outputFolder}\{entry.FileName}{customExtension}";
288 | 
289 |                     // Create file directory tree
290 |                     Directory.CreateDirectory(Path.GetDirectoryName(outputFileName));
291 | 
292 |                     // Write the file
293 |                     using (FileStream outputFileStream = new FileStream(outputFileName, FileMode.Create, FileAccess.Write, FileShare.None, 4096, FileOptions.None))
294 |                     {
295 |                         Util.CopyStream(entryMemoryStream, outputFileStream, entry.RawFileSize);
296 |                     }
297 | 
298 |                     entryMemoryStream.Dispose();
299 |                 }
300 |             }
301 |         }
302 | 
303 | 
304 |         // Print the info of a specified archive
305 |         public static void PrintInfo(String inputFile, Boolean skipDataIntegrityValidation)
306 |         {
307 |             Console.WriteLine("[*PRINT INFO*]");
308 |             Console.WriteLine($"File: {inputFile}");
309 |             Console.WriteLine();
310 | 
311 |             using (FileStream inputFileStream = new FileStream(inputFile, FileMode.Open, FileAccess.Read, FileShare.None, 4096, FileOptions.SequentialScan))
312 |             {
313 |                 // Header data
314 |                 YPFHeader header = new YPFHeader(inputFileStream);
315 | 
316 |                 // Print header info
317 |                 Console.WriteLine("[HEADER]");
318 |                 Console.WriteLine($"Version: {header.Version}");
319 |                 Console.WriteLine($"Files Count: {header.ArchivedFiles.Count}");
320 |                 Console.WriteLine($"Header Size: {header.ArchivedFilesHeaderSize}");
321 |                 Console.WriteLine($"Name Checksum Algorithm: {header.NameChecksum.Name}");
322 |                 Console.WriteLine($"Data Checksum Algorithm: {header.DataChecksum.Name}");
323 |                 Console.WriteLine($"Filename Encryption Key: {header.FileNameEncryptionKey:x2}");
324 |                 Console.WriteLine();
325 | 
326 |                 Console.WriteLine("[FILES]");
327 | 
328 |                 for (int i = 0; i < header.ArchivedFiles.Count; i++)
329 |                 {
330 |                     // Entry data
331 |                     YPFEntry entry = header.ArchivedFiles[i];
332 | 
333 |                     // Print entry info
334 |                     Console.WriteLine($"[{i + 1}/{header.ArchivedFiles.Count}]");
335 |                     Console.WriteLine($"\tFilename: {entry.FileName}");
336 |                     Console.WriteLine($"\tCompressed: {entry.IsCompressed}");
337 |                     Console.WriteLine($"\tSize: {entry.RawFileSize}");
338 |                     Console.WriteLine($"\tCompressed Size: {entry.CompressedFileSize}");
339 |                     Console.WriteLine($"\tOffset: {entry.Offset}");
340 |                     Console.WriteLine($"\tType: {entry.Type}");
341 |                     Console.WriteLine($"\tName Checksum: {entry.NameChecksum:x8}");
342 |                     Console.WriteLine($"\tData Checksum: {entry.DataChecksum:x8}");
343 |                     Console.WriteLine();
344 |                 }
345 | 
346 |                 // Skip data integrity validation if requested by the user
347 |                 if (!skipDataIntegrityValidation)
348 |                 {
349 |                     // Order by offset to improve sequential read performance
350 |                     header.ArchivedFiles = header.ArchivedFiles.OrderBy(x => x.Offset).ToList();
351 | 
352 |                     Console.WriteLine();
353 |                     Console.WriteLine("[DATA]");
354 |                     Console.Write("Validating data integrity...");
355 | 
356 |                     // Validate each entry
357 |                     foreach (YPFEntry entry in header.ArchivedFiles)
358 |                     {
359 |                         header.ValidateDataIntegrity(inputFileStream, entry.Offset, entry.CompressedFileSize, entry.DataChecksum);
360 |                     }
361 | 
362 |                     Console.WriteLine(" Complete");
363 |                 }
364 |             }
365 |         }
366 | 
367 |     }
368 | }
369 | 


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