From dc3914e97679fdc9fa5229945e9ef5a066de0db9 Mon Sep 17 00:00:00 2001
From: Matt Nadareski <mnadareski@outlook.com>
Date: Sun, 25 Dec 2022 22:55:48 -0800
Subject: [PATCH] Use new GCF extraction code

---
 BurnOutSharp/FileType/GCF.cs    | 69 +++++++++++++++++++++++++++++++++
 BurnOutSharp/Tools/Utilities.cs |  2 +-
 2 files changed, 70 insertions(+), 1 deletion(-)
 create mode 100644 BurnOutSharp/FileType/GCF.cs

diff --git a/BurnOutSharp/FileType/GCF.cs b/BurnOutSharp/FileType/GCF.cs
new file mode 100644
index 00000000..54f0ee27
--- /dev/null
+++ b/BurnOutSharp/FileType/GCF.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>
+    /// Half-Life Game Cache File
+    /// </summary>
+    public class GCF : 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 BSP file itself fails
+            try
+            {
+                string tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+                Directory.CreateDirectory(tempPath);
+
+                // Create the wrapper
+                Wrappers.GCF gcf = Wrappers.GCF.Create(stream);
+                if (gcf == null)
+                    return null;
+
+                // Loop through and extract all files
+                gcf.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;
+        }
+    }
+}
diff --git a/BurnOutSharp/Tools/Utilities.cs b/BurnOutSharp/Tools/Utilities.cs
index 00152139..cb639c66 100644
--- a/BurnOutSharp/Tools/Utilities.cs
+++ b/BurnOutSharp/Tools/Utilities.cs
@@ -620,7 +620,7 @@ namespace BurnOutSharp.Tools
                 case SupportedFileType.BSP: return new FileType.BSP();
                 case SupportedFileType.BZip2: return new FileType.BZip2();
                 case SupportedFileType.Executable: return new FileType.Executable();
-                case SupportedFileType.GCF: return new FileType.Valve();
+                case SupportedFileType.GCF: return new FileType.GCF();
                 case SupportedFileType.GZIP: return new FileType.GZIP();
                 //case FileTypes.IniFile: return new FileType.IniFile();
                 case SupportedFileType.InstallShieldArchiveV3: return new FileType.InstallShieldArchiveV3();