Move extractable file types to new library

BinaryObjectScanner.FileType/InstallShieldArchiveV3.cs

@@ -0,0 +1,68 @@
+using System;
+using System.IO;
+using System.Linq;
+using BinaryObjectScanner.Interfaces;
+using UnshieldSharp.Archive;
+
+namespace BinaryObjectScanner.FileType
+{
+    /// <summary>
+    /// InstallShield archive v3
+    /// </summary>
+    public class InstallShieldArchiveV3 : IExtractable
+    {
+        /// <inheritdoc/>
+        public string Extract(string file, bool includeDebug)
+        {
+            if (!File.Exists(file))
+                return null;
+
+            using (var fs = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.Read))
+            {
+                return Extract(fs, file, includeDebug);
+            }
+        }
+
+        /// <inheritdoc/>
+        public string Extract(Stream stream, string file, bool includeDebug)
+        {
+            try
+            {
+                // Create a temp output directory
+                string tempPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
+                Directory.CreateDirectory(tempPath);
+
+                UnshieldSharp.Archive.InstallShieldArchiveV3 archive = new UnshieldSharp.Archive.InstallShieldArchiveV3(file);
+                foreach (CompressedFile cfile in archive.Files.Select(kvp => kvp.Value))
+                {
+                    try
+                    {
+                        string tempFile = Path.Combine(tempPath, cfile.FullPath);
+                        if (!Directory.Exists(Path.GetDirectoryName(tempFile)))
+                            Directory.CreateDirectory(Path.GetDirectoryName(tempFile));
+
+                        (byte[] fileContents, string error) = archive.Extract(cfile.FullPath);
+                        if (!string.IsNullOrWhiteSpace(error))
+                            continue;
+
+                        using (FileStream fs = File.OpenWrite(tempFile))
+                        {
+                            fs.Write(fileContents, 0, fileContents.Length);
+                        }
+                    }
+                    catch (Exception ex)
+                    {
+                        if (includeDebug) Console.WriteLine(ex);
+                    }
+                }
+
+                return tempPath;
+            }
+            catch (Exception ex)
+            {
+                if (includeDebug) Console.WriteLine(ex);
+                return null;
+            }
+        }
+    }
+}