Move extractable file types to new library

BinaryObjectScanner.FileType/GZIP.cs

@@ -0,0 +1,64 @@
+using System;
+using System.IO;
+using BinaryObjectScanner.Interfaces;
+using SharpCompress.Archives;
+using SharpCompress.Archives.GZip;
+
+namespace BinaryObjectScanner.FileType
+{
+    /// <summary>
+    /// gzip archive
+    /// </summary>
+    public class GZIP : 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);
+
+                using (GZipArchive zipFile = GZipArchive.Open(stream))
+                {
+                    foreach (var entry in zipFile.Entries)
+                    {
+                        try
+                        {
+                            // If we have a directory, skip it
+                            if (entry.IsDirectory)
+                                continue;
+
+                            string tempFile = Path.Combine(tempPath, entry.Key);
+                            entry.WriteToFile(tempFile);
+                        }
+                        catch (Exception ex)
+                        {
+                            if (includeDebug) Console.WriteLine(ex);
+                        }
+                    }
+                }
+
+                return tempPath;
+            }
+            catch (Exception ex)
+            {
+                if (includeDebug) Console.WriteLine(ex);
+                return null;
+            }
+        }
+    }
+}