From dac51f51f5e657f028bf6aa738eb88c5e02bd7fd Mon Sep 17 00:00:00 2001
From: SilicaAndPina <SilicaAndPina@silica.com>
Date: Sat, 15 Jan 2022 01:08:53 +1300
Subject: [PATCH] Make it work under mono

---
 AppInfoCli/CXMLCli.csproj |  2 +-
 AppInfoCli/Program.cs     | 21 +++++++++--
 AppInfoCli/Tools.cs       | 73 ++++++++++++++++++---------------------
 3 files changed, 52 insertions(+), 44 deletions(-)

diff --git a/AppInfoCli/CXMLCli.csproj b/AppInfoCli/CXMLCli.csproj
index 73c096b..01a2170 100644
--- a/AppInfoCli/CXMLCli.csproj
+++ b/AppInfoCli/CXMLCli.csproj
@@ -109,4 +109,4 @@
     <Content Include="cxml.ico" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-</Project>
\ No newline at end of file
+</Project>
diff --git a/AppInfoCli/Program.cs b/AppInfoCli/Program.cs
index bdb165c..337c876 100644
--- a/AppInfoCli/Program.cs
+++ b/AppInfoCli/Program.cs
@@ -24,10 +24,25 @@ namespace CXMLCli
         }
         static int Main(string[] args)
         {
-
+	    
             // Do you have gimconv?
-            if (!File.Exists(Path.Combine("GimConv", "GimConv.exe")))
-                GimConv.DownloadGimConv(); // Politely ask sony to give it to us.
+            
+            bool windowsNT = Environment.OSVersion.Platform.Equals(PlatformID.Win32NT);
+            bool windows32 = Environment.OSVersion.Platform.Equals(PlatformID.Win32Windows);
+            bool windows32S = Environment.OSVersion.Platform.Equals(PlatformID.Win32S);
+            bool windowsCE = Environment.OSVersion.Platform.Equals(PlatformID.WinCE);
+            
+            if (windowsNT || windows32 || windows32S || windowsCE)
+            {
+		    if (!File.Exists(Path.Combine("GimConv", "GimConv.exe"))) 
+		    {
+		        GimConv.DownloadGimConv(); // Politely ask sony to give it to us.
+		    }
+	    }
+	    else
+	    {
+	    	Console.WriteLine("NOTE: GimConv is windows binary, so you cant use it on this OS!\n.GIM Decoding will be disabled!");
+	    }
 
             bool Check = true;
 
diff --git a/AppInfoCli/Tools.cs b/AppInfoCli/Tools.cs
index 230a829..c745f3d 100644
--- a/AppInfoCli/Tools.cs
+++ b/AppInfoCli/Tools.cs
@@ -13,6 +13,14 @@ namespace General
     class Tools
     {
 
+	public static byte[] bmp    = Encoding.ASCII.GetBytes("BM");     // BMP
+	public static byte[] gif    = Encoding.ASCII.GetBytes("GIF");    // GIF
+	public static byte[] png    = new byte[] { 137, 80, 78, 71 };    // PNG
+	public static byte[] tiff   = new byte[] { 73, 73, 42 };         // TIFF
+	public static byte[] tiff2  = new byte[] { 77, 77, 42 };         // TIFF
+ 	public static byte[] jpeg   = new byte[] { 255, 216, 255 };      // jpeg
+		
+ 
         public static void WriteStringToStream(Stream s, String str)
         {
             Byte[] bytes = Encoding.UTF8.GetBytes(str);
@@ -40,34 +48,32 @@ namespace General
             return Bytes;
         }
 
-        public static string GetFileExtension(byte[] Bytes)
+       public static string GetFileExtension(byte[] Bytes)
         {
-            if (IsImage(Bytes))
-            {
-                using (Bitmap bmp = GetBitmap(Bytes))
-                {
-                    if (bmp.RawFormat.Equals(ImageFormat.Jpeg))
-                        return ".jpeg";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Bmp))
-                        return ".bmp";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Gif))
-                        return ".gif";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Png))
-                        return ".png";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Tiff))
-                        return ".tiff";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Icon))
-                        return ".ico";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Exif))
-                        return ".exif";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Emf))
-                        return ".emf";
-                    else if (bmp.RawFormat.Equals(ImageFormat.Wmf))
-                        return ".wmf";
-                    else
-                        return ".raw";
-                }
-            }
+           if (bmp.SequenceEqual(Bytes.Take(bmp.Length)))
+           {
+		return ".bmp";
+	    }
+	    else if (gif.SequenceEqual(Bytes.Take(gif.Length)))
+	    {
+		return ".gif";
+	    }
+	    else if (png.SequenceEqual(Bytes.Take(png.Length)))
+	    {
+		return ".png";
+	    }
+	    else if (tiff.SequenceEqual(Bytes.Take(tiff.Length)))
+	    {
+		return ".tiff";
+	    }
+	    else if (tiff2.SequenceEqual(Bytes.Take(tiff2.Length)))
+	    {
+		return ".tiff";
+	    }
+	    else if (jpeg.SequenceEqual(Bytes.Take(jpeg.Length)))
+	    {
+		return ".jpg";
+	    }
             else if (IsZlib(Bytes))
             {
                 return ".z";
@@ -171,19 +177,6 @@ namespace General
 
 
 
-        public static bool IsImage(byte[] Bytes)
-        {
-            try
-            {
-                GetBitmap(Bytes);
-            }
-            catch (Exception)
-            {
-                return false;
-            }
-            return true;
-        }
-
         public static Bitmap GetBitmap(byte[] BitmapBytes)
         {
             MemoryStream ms = ByteToStream(BitmapBytes);