Add XZP wrapper, extraction, and use it

BurnOutSharp.Builders/XZP.cs

@@ -131,7 +131,7 @@ namespace BurnOutSharp.Builders
                 file.DirectoryItems = new DirectoryItem[header.DirectoryItemCount];
 
                 // Try to parse the directory items
-                for (int i = 0; i < header.PreloadDirectoryEntryCount; i++)
+                for (int i = 0; i < header.DirectoryItemCount; i++)
                 {
                     var directoryItem = ParseDirectoryItem(data);
                     file.DirectoryItems[i] = directoryItem;
@@ -234,6 +234,18 @@ namespace BurnOutSharp.Builders
             directoryItem.NameOffset = data.ReadUInt32();
             directoryItem.TimeCreated = data.ReadUInt32();
 
+            // Cache the current offset
+            long currentPosition = data.Position;
+
+            // Seek to the name offset
+            data.Seek(directoryItem.NameOffset, SeekOrigin.Begin);
+
+            // Read the name
+            directoryItem.Name = data.ReadString(Encoding.ASCII);
+
+            // Seek back to the right position
+            data.Seek(currentPosition, SeekOrigin.Begin);
+
             return directoryItem;
         }
 

BurnOutSharp.Models/XZP/DirectoryItem.cs

@@ -7,6 +7,8 @@ namespace BurnOutSharp.Models.XZP
 
         public uint NameOffset;
 
+        public string Name;
+
         public uint TimeCreated;
     }
 }

BurnOutSharp.Wrappers/XZP.cs

@@ -0,0 +1,388 @@
+using System;
+using System.IO;
+using System.Linq;
+
+namespace BurnOutSharp.Wrappers
+{
+    public class XZP : WrapperBase
+    {
+        #region Pass-Through Properties
+
+        #region Header
+
+        /// <inheritdoc cref="Models.XZP.Header.Signature"/>
+        public string Signature => _file.Header.Signature;
+
+        /// <inheritdoc cref="Models.XZP.Header.Version"/>
+        public uint Version => _file.Header.Version;
+
+        /// <inheritdoc cref="Models.XZP.Header.PreloadDirectoryEntryCount"/>
+        public uint PreloadDirectoryEntryCount => _file.Header.PreloadDirectoryEntryCount;
+
+        /// <inheritdoc cref="Models.XZP.Header.DirectoryEntryCount"/>
+        public uint DirectoryEntryCount => _file.Header.DirectoryEntryCount;
+
+        /// <inheritdoc cref="Models.XZP.Header.PreloadBytes"/>
+        public uint PreloadBytes => _file.Header.PreloadBytes;
+
+        /// <inheritdoc cref="Models.XZP.Header.HeaderLength"/>
+        public uint HeaderLength => _file.Header.HeaderLength;
+
+        /// <inheritdoc cref="Models.XZP.Header.DirectoryItemCount"/>
+        public uint DirectoryItemCount => _file.Header.DirectoryItemCount;
+
+        /// <inheritdoc cref="Models.XZP.Header.DirectoryItemOffset"/>
+        public uint DirectoryItemOffset => _file.Header.DirectoryItemOffset;
+
+        /// <inheritdoc cref="Models.XZP.Header.DirectoryItemLength"/>
+        public uint DirectoryItemLength => _file.Header.DirectoryItemLength;
+
+        #endregion
+
+        #region Directory Entries
+
+        /// <inheritdoc cref="Models.XZP.DirectoryEntries"/>
+        public Models.XZP.DirectoryEntry[] DirectoryEntries => _file.DirectoryEntries;
+
+        #endregion
+
+        #region Preload Directory Entries
+
+        /// <inheritdoc cref="Models.XZP.PreloadDirectoryEntries"/>
+        public Models.XZP.DirectoryEntry[] PreloadDirectoryEntries => _file.PreloadDirectoryEntries;
+
+        #endregion
+
+        #region Preload Directory Entries
+
+        /// <inheritdoc cref="Models.XZP.PreloadDirectoryMappings"/>
+        public Models.XZP.DirectoryMapping[] PreloadDirectoryMappings => _file.PreloadDirectoryMappings;
+
+        #endregion
+
+        #region Directory Items
+
+        /// <inheritdoc cref="Models.XZP.DirectoryItems"/>
+        public Models.XZP.DirectoryItem[] DirectoryItems => _file.DirectoryItems;
+
+        #endregion
+
+        #region Footer
+
+        /// <inheritdoc cref="Models.XZP.Footer.FileLength"/>
+        public uint F_FileLength => _file.Footer.FileLength;
+
+        /// <inheritdoc cref="Models.XZP.Footer.Signature"/>
+        public string F_Signature => _file.Footer.Signature;
+
+        #endregion
+
+        #endregion
+
+        #region Extension Properties
+
+        // TODO: Figure out what extensions are needed
+        
+        #endregion
+
+        #region Instance Variables
+
+        /// <summary>
+        /// Internal representation of the XZP
+        /// </summary>
+        private Models.XZP.File _file;
+
+        #endregion
+
+        #region Constructors
+
+        /// <summary>
+        /// Private constructor
+        /// </summary>
+        private XZP() { }
+
+        /// <summary>
+        /// Create a XZP from a byte array and offset
+        /// </summary>
+        /// <param name="data">Byte array representing the XZP</param>
+        /// <param name="offset">Offset within the array to parse</param>
+        /// <returns>A XZP wrapper on success, null on failure</returns>
+        public static XZP Create(byte[] data, int offset)
+        {
+            // If the data is invalid
+            if (data == null)
+                return null;
+
+            // If the offset is out of bounds
+            if (offset < 0 || offset >= data.Length)
+                return null;
+
+            // Create a memory stream and use that
+            MemoryStream dataStream = new MemoryStream(data, offset, data.Length - offset);
+            return Create(dataStream);
+        }
+
+        /// <summary>
+        /// Create a XZP from a Stream
+        /// </summary>
+        /// <param name="data">Stream representing the XZP</param>
+        /// <returns>A XZP wrapper on success, null on failure</returns>
+        public static XZP Create(Stream data)
+        {
+            // If the data is invalid
+            if (data == null || data.Length == 0 || !data.CanSeek || !data.CanRead)
+                return null;
+
+            var file = Builders.XZP.ParseFile(data);
+            if (file == null)
+                return null;
+
+            var wrapper = new XZP
+            {
+                _file = file,
+                _dataSource = DataSource.Stream,
+                _streamData = data,
+            };
+            return wrapper;
+        }
+
+        #endregion
+
+        #region Printing
+
+        /// <inheritdoc/>
+        public override void Print()
+        {
+            Console.WriteLine("XZP Information:");
+            Console.WriteLine("-------------------------");
+            Console.WriteLine();
+
+            PrintHeader();
+            PrintDirectoryEntries();
+            PrintPreloadDirectoryEntries();
+            PrintPreloadDirectoryMappings();
+            PrintDirectoryItems();
+            PrintFooter();
+        }
+
+        /// <summary>
+        /// Print header information
+        /// </summary>
+        private void PrintHeader()
+        {
+            Console.WriteLine("  Header Information:");
+            Console.WriteLine("  -------------------------");
+            Console.WriteLine($"  Signature: {Signature}");
+            Console.WriteLine($"  Version: {Version}");
+            Console.WriteLine($"  Preload directory entry count: {PreloadDirectoryEntryCount}");
+            Console.WriteLine($"  Directory entry count: {DirectoryEntryCount}");
+            Console.WriteLine($"  Preload bytes: {PreloadBytes}");
+            Console.WriteLine($"  Header length: {HeaderLength}");
+            Console.WriteLine($"  Directory item count: {DirectoryItemCount}");
+            Console.WriteLine($"  Directory item offset: {DirectoryItemOffset}");
+            Console.WriteLine($"  Directory item length: {DirectoryItemLength}");
+            Console.WriteLine();
+        }
+
+        /// <summary>
+        /// Print directory entries information
+        /// </summary>
+        private void PrintDirectoryEntries()
+        {
+            Console.WriteLine("  Directory Entries Information:");
+            Console.WriteLine("  -------------------------");
+            if (DirectoryEntries == null || DirectoryEntries.Length == 0)
+            {
+                Console.WriteLine("  No directory entries");
+            }
+            else
+            {
+                for (int i = 0; i < DirectoryEntries.Length; i++)
+                {
+                    var directoryEntry = DirectoryEntries[i];
+                    Console.WriteLine($"  Directory Entry {i}");
+                    Console.WriteLine($"    File name CRC: {directoryEntry.FileNameCRC}");
+                    Console.WriteLine($"    Entry length: {directoryEntry.EntryLength}");
+                    Console.WriteLine($"    Entry offset: {directoryEntry.EntryOffset}");
+                }
+            }
+            Console.WriteLine();
+        }
+
+        /// <summary>
+        /// Print preload directory entries information
+        /// </summary>
+        private void PrintPreloadDirectoryEntries()
+        {
+            Console.WriteLine("  Preload Directory Entries Information:");
+            Console.WriteLine("  -------------------------");
+            if (PreloadDirectoryEntries == null || PreloadDirectoryEntries.Length == 0)
+            {
+                Console.WriteLine("  No preload directory entries");
+            }
+            else
+            {
+                for (int i = 0; i < PreloadDirectoryEntries.Length; i++)
+                {
+                    var preloadDirectoryEntry = PreloadDirectoryEntries[i];
+                    Console.WriteLine($"  Directory Entry {i}");
+                    Console.WriteLine($"    File name CRC: {preloadDirectoryEntry.FileNameCRC}");
+                    Console.WriteLine($"    Entry length: {preloadDirectoryEntry.EntryLength}");
+                    Console.WriteLine($"    Entry offset: {preloadDirectoryEntry.EntryOffset}");
+                }
+            }
+            Console.WriteLine();
+        }
+
+        /// <summary>
+        /// Print preload directory mappings information
+        /// </summary>
+        private void PrintPreloadDirectoryMappings()
+        {
+            Console.WriteLine("  Preload Directory Mappings Information:");
+            Console.WriteLine("  -------------------------");
+            if (PreloadDirectoryMappings == null || PreloadDirectoryMappings.Length == 0)
+            {
+                Console.WriteLine("  No preload directory mappings");
+            }
+            else
+            {
+                for (int i = 0; i < PreloadDirectoryMappings.Length; i++)
+                {
+                    var preloadDirectoryMapping = PreloadDirectoryMappings[i];
+                    Console.WriteLine($"  Directory Mapping {i}");
+                    Console.WriteLine($"    Preload directory entry index: {preloadDirectoryMapping.PreloadDirectoryEntryIndex}");
+                }
+            }
+            Console.WriteLine();
+        }
+
+        /// <summary>
+        /// Print directory items information
+        /// </summary>
+        private void PrintDirectoryItems()
+        {
+            Console.WriteLine("  Directory Items Information:");
+            Console.WriteLine("  -------------------------");
+            if (DirectoryItems == null || DirectoryItems.Length == 0)
+            {
+                Console.WriteLine("  No directory items");
+            }
+            else
+            {
+                for (int i = 0; i < DirectoryItems.Length; i++)
+                {
+                    var directoryItem = DirectoryItems[i];
+                    Console.WriteLine($"  Directory Item {i}");
+                    Console.WriteLine($"    File name CRC: {directoryItem.FileNameCRC}");
+                    Console.WriteLine($"    Name offset: {directoryItem.NameOffset}");
+                    Console.WriteLine($"    Name: {directoryItem.Name ?? "[NULL]"}");
+                    Console.WriteLine($"    Time created: {directoryItem.TimeCreated}");
+                }
+            }
+            Console.WriteLine();
+        }
+
+        /// <summary>
+        /// Print footer information
+        /// </summary>
+        private void PrintFooter()
+        {
+            Console.WriteLine("  Footer Information:");
+            Console.WriteLine("  -------------------------");
+            Console.WriteLine($"  File length: {F_FileLength}");
+            Console.WriteLine($"  Signature: {F_Signature}");
+            Console.WriteLine();
+        }
+
+        #endregion
+
+        #region Extraction
+
+        /// <summary>
+        /// Extract all files from the XZP to an output directory
+        /// </summary>
+        /// <param name="outputDirectory">Output directory to write to</param>
+        /// <returns>True if all files extracted, false otherwise</returns>
+        public bool ExtractAll(string outputDirectory)
+        {
+            // If we have no directory entries
+            if (DirectoryEntries == null || DirectoryEntries.Length == 0)
+                return false;
+
+            // Loop through and extract all files to the output
+            bool allExtracted = true;
+            for (int i = 0; i < DirectoryEntries.Length; i++)
+            {
+                allExtracted &= ExtractFile(i, outputDirectory);
+            }
+
+            return allExtracted;
+        }
+
+        /// <summary>
+        /// Extract a file from the XZP to an output directory by index
+        /// </summary>
+        /// <param name="index">File index to extract</param>
+        /// <param name="outputDirectory">Output directory to write to</param>
+        /// <returns>True if the file extracted, false otherwise</returns>
+        public bool ExtractFile(int index, string outputDirectory)
+        {
+            // If we have no directory entries
+            if (DirectoryEntries == null || DirectoryEntries.Length == 0)
+                return false;
+
+            // If we have no directory items
+            if (DirectoryItems == null || DirectoryItems.Length == 0)
+                return false;
+
+            // If the directory entry index is invalid
+            if (index < 0 || index >= DirectoryEntries.Length)
+                return false;
+
+            // Get the directory entry
+            var directoryEntry = DirectoryEntries[index];
+            if (directoryEntry == null)
+                return false;
+
+            // Get the associated directory item
+            var directoryItem = DirectoryItems.Where(di => di.FileNameCRC == directoryEntry.FileNameCRC).FirstOrDefault();
+            if (directoryItem == null)
+                return false;
+
+            // Load the item data
+            byte[] data = ReadFromDataSource((int)directoryEntry.EntryOffset, (int)directoryEntry.EntryLength);
+
+            // Create the filename
+            string filename = directoryItem.Name;
+
+            // If we have an invalid output directory
+            if (string.IsNullOrWhiteSpace(outputDirectory))
+                return false;
+
+            // Create the full output path
+            filename = Path.Combine(outputDirectory, filename);
+
+            // Ensure the output directory is created
+            Directory.CreateDirectory(Path.GetDirectoryName(filename));
+
+            // Try to write the data
+            try
+            {
+                // Open the output file for writing
+                using (Stream fs = File.OpenWrite(filename))
+                {
+                    fs.Write(data, 0, data.Length);
+                }
+            }
+            catch
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        #endregion
+    }
+}

BurnOutSharp/FileType/XZP.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Concurrent;
+using System.IO;
+using BurnOutSharp.Interfaces;
+using static BurnOutSharp.Utilities.Dictionary;
+
+namespace BurnOutSharp.FileType
+{
+    /// <summary>
+    /// Valve Package File
+    /// </summary>
+    public class XZP : IScannable
+    {
+        /// <inheritdoc/>
+        public ConcurrentDictionary<string, ConcurrentQueue<string>> Scan(Scanner scanner, string file)
+        {
+            if (!File.Exists(file))
+                return null;
+
+            using (var fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
+            {
+                return Scan(scanner, fs, file);
+            }
+        }
+
+        /// <inheritdoc/>
+        public ConcurrentDictionary<string, ConcurrentQueue<string>> Scan(Scanner scanner, Stream stream, string file)
+        {
+            // If the XZP file itself fails
+            try
+            {
+                string tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+                Directory.CreateDirectory(tempPath);
+
+                // Create the wrapper
+                Wrappers.XZP xzp = Wrappers.XZP.Create(stream);
+                if (xzp == null)
+                    return null;
+
+                // Loop through and extract all files
+                xzp.ExtractAll(tempPath);
+
+                // Collect and format all found protections
+                var protections = scanner.GetProtections(tempPath);
+
+                // If temp directory cleanup fails
+                try
+                {
+                    Directory.Delete(tempPath, true);
+                }
+                catch (Exception ex)
+                {
+                    if (scanner.IncludeDebug) Console.WriteLine(ex);
+                }
+
+                // Remove temporary path references
+                StripFromKeys(protections, tempPath);
+
+                return protections;
+            }
+            catch (Exception ex)
+            {
+                if (scanner.IncludeDebug) Console.WriteLine(ex);
+            }
+
+            return null;
+        }
+    }
+}

BurnOutSharp/Tools/Utilities.cs

@@ -7,7 +7,7 @@ using BurnOutSharp.Wrappers;
 
 namespace BurnOutSharp.Tools
 {
-    internal static class Utilities
+    public static class Utilities
     {
         #region File Types
 
@@ -647,7 +647,7 @@ namespace BurnOutSharp.Tools
                 case SupportedFileType.VPK: return new FileType.VPK();
                 case SupportedFileType.WAD: return new FileType.WAD();
                 case SupportedFileType.XZ: return new FileType.XZ();
-                case SupportedFileType.XZP: return new FileType.Valve();
+                case SupportedFileType.XZP: return new FileType.XZP();
                 default: return null;
             }
         }

Test/Program.cs

@@ -213,8 +213,11 @@ namespace Test
                 byte[] magic = stream.ReadBytes(8);
                 stream.Seek(0, SeekOrigin.Begin);
 
+                // Get the file type
+                SupportedFileType ft = BurnOutSharp.Tools.Utilities.GetFileType(magic);
+
                 // MS-DOS executable and decendents
-                if (IsMSDOS(magic))
+                if (ft == SupportedFileType.Executable)
                 {
                     // Build the executable information
                     Console.WriteLine("Creating MS-DOS executable builder");
@@ -293,7 +296,7 @@ namespace Test
                 }
 
                 // BFPK archive
-                else if (IsBFPK(magic))
+                else if (ft == SupportedFileType.BFPK)
                 {
                     // Build the BFPK information
                     Console.WriteLine("Creating BFPK deserializer");
@@ -312,7 +315,7 @@ namespace Test
                 }
 
                 // BSP
-                else if (IsBSP(magic))
+                else if (ft == SupportedFileType.BSP)
                 {
                     // Build the BSP information
                     Console.WriteLine("Creating BSP deserializer");
@@ -331,7 +334,7 @@ namespace Test
                 }
 
                 // GCF
-                else if (IsGCF(magic))
+                else if (ft == SupportedFileType.GCF)
                 {
                     // Build the GCF information
                     Console.WriteLine("Creating GCF deserializer");
@@ -350,7 +353,7 @@ namespace Test
                 }
 
                 // MoPaQ (MPQ) archive
-                else if (IsMoPaQ(magic))
+                else if (ft == SupportedFileType.MPQ)
                 {
                     // Build the archive information
                     Console.WriteLine("Creating MoPaQ deserializer");
@@ -363,7 +366,7 @@ namespace Test
                 }
 
                 // MS-CAB archive
-                else if (IsMSCAB(magic))
+                else if (ft == SupportedFileType.MicrosoftCAB)
                 {
                     // Build the cabinet information
                     Console.WriteLine("Creating MS-CAB deserializer");
@@ -382,7 +385,7 @@ namespace Test
                 }
 
                 // NCF
-                else if (IsNCF(magic))
+                else if (ft == SupportedFileType.NCF)
                 {
                     // Build the NCF information
                     Console.WriteLine("Creating NCF deserializer");
@@ -401,7 +404,7 @@ namespace Test
                 }
 
                 // PAK
-                else if (IsPAK(magic))
+                else if (ft == SupportedFileType.PAK)
                 {
                     // Build the archive information
                     Console.WriteLine("Creating PAK deserializer");
@@ -420,7 +423,7 @@ namespace Test
                 }
 
                 // VBSP
-                else if (IsVBSP(magic))
+                else if (ft == SupportedFileType.VBSP)
                 {
                     // Build the archive information
                     Console.WriteLine("Creating VBSP deserializer");
@@ -439,7 +442,7 @@ namespace Test
                 }
 
                 // VPK
-                else if (IsVPK(magic))
+                else if (ft == SupportedFileType.VPK)
                 {
                     // Build the archive information
                     Console.WriteLine("Creating VPK deserializer");
@@ -458,7 +461,7 @@ namespace Test
                 }
 
                 // WAD
-                else if (IsWAD(magic))
+                else if (ft == SupportedFileType.WAD)
                 {
                     // Build the archive information
                     Console.WriteLine("Creating WAD deserializer");
@@ -476,6 +479,25 @@ namespace Test
                     wad.Print();
                 }
 
+                // XZP
+                else if (ft == SupportedFileType.XZP)
+                {
+                    // Build the archive information
+                    Console.WriteLine("Creating XZP deserializer");
+                    Console.WriteLine();
+
+                    var xzp = XZP.Create(stream);
+                    if (xzp == null)
+                    {
+                        Console.WriteLine("Something went wrong parsing XZP");
+                        Console.WriteLine();
+                        return;
+                    }
+
+                    // Print the XZP info to screen
+                    xzp.Print();
+                }
+
                 // Everything else
                 else
                 {
@@ -486,85 +508,6 @@ namespace Test
             }
         }
 
-        /// <summary>
-        /// Determine if the magic bytes indicate an BFPK archive
-        /// </summary>
-        private static bool IsBFPK(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'B' && magic[1] == 'F' && magic[2] == 'P' && magic[3] == 'K';
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate a BSP
-        /// </summary>
-        private static bool IsBSP(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 0x1e && magic[1] == 0x00 && magic[2] == 0x00 && magic[3] == 0x00;
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate a GCF
-        /// </summary>
-        private static bool IsGCF(byte[] magic)
-        {
-            if (magic == null || magic.Length < 8)
-                return false;
-
-            return magic[0] == 0x01 && magic[1] == 0x00 && magic[2] == 0x00 && magic[3] == 0x00
-                && magic[4] == 0x01 && magic[5] == 0x00 && magic[6] == 0x00 && magic[7] == 0x00;
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate an MoPaQ archive
-        /// </summary>
-        private static bool IsMoPaQ(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'M' && magic[1] == 'P' && magic[2] == 'Q' && (magic[3] == 0x1A || magic[3] == 0x1B);
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate an MS-CAB archive
-        /// </summary>
-        private static bool IsMSCAB(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'M' && magic[1] == 'S' && magic[2] == 'C' && magic[3] == 'F';
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate an MS-DOS executable
-        /// </summary>
-        private static bool IsMSDOS(byte[] magic)
-        {
-            if (magic == null || magic.Length < 2)
-                return false;
-
-            return magic[0] == 'M' && magic[1] == 'Z';
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate an NCF
-        /// </summary>
-        private static bool IsNCF(byte[] magic)
-        {
-            if (magic == null || magic.Length < 8)
-                return false;
-
-            return magic[0] == 0x01 && magic[1] == 0x00 && magic[2] == 0x00 && magic[3] == 0x00
-                && magic[4] == 0x02 && magic[5] == 0x00 && magic[6] == 0x00 && magic[7] == 0x00;
-        }
-
         /// <summary>
         /// Determine if the magic bytes indicate a New Executable
         /// </summary>
@@ -587,17 +530,6 @@ namespace Test
             return magic[0] == 'L' && (magic[1] == 'E' || magic[1] == 'X');
         }
 
-        /// <summary>
-        /// Determine if the magic bytes indicate a PAK
-        /// </summary>
-        private static bool IsPAK(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'P' && magic[1] == 'A' && magic[2] == 'C' && magic[3] == 'K';
-        }
-
         /// <summary>
         /// Determine if the magic bytes indicate a Portable Executable
         /// </summary>
@@ -609,39 +541,6 @@ namespace Test
             return magic[0] == 'P' && magic[1] == 'E' && magic[2] == '\0' && magic[3] == '\0';
         }
 
-        /// <summary>
-        /// Determine if the magic bytes indicate a VBSP
-        /// </summary>
-        private static bool IsVBSP(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'V' && magic[1] == 'B' && magic[2] == 'S' && magic[3] == 'P';
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate a VPK
-        /// </summary>
-        private static bool IsVPK(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 0x34 && magic[1] == 0x12 && magic[2] == 0xaa && magic[3] == 0x55;
-        }
-
-        /// <summary>
-        /// Determine if the magic bytes indicate a WAD
-        /// </summary>
-        private static bool IsWAD(byte[] magic)
-        {
-            if (magic == null || magic.Length < 4)
-                return false;
-
-            return magic[0] == 'W' && magic[1] == 'A' && magic[2] == 'D' && magic[3] == '3';
-        }
-
         #endregion
     }
 }