From b4f9962b21283bfeb07160a432e6ea9ad98be80b Mon Sep 17 00:00:00 2001
From: Andy Howard <andy@sarand.com>
Date: Fri, 18 Jun 2021 10:48:47 +0100
Subject: [PATCH] SixLabors ImageSharp package.

---
 .../Base/Helpers/SacsContentTypeHelper.cs     |  2 +-
 SacsStandardBase/Base/Utils/ImageUtils.cs     | 57 +++++++++++++++++++
 SacsStandardBase/SacsStandardBase.csproj      |  1 +
 3 files changed, 59 insertions(+), 1 deletion(-)
 create mode 100644 SacsStandardBase/Base/Utils/ImageUtils.cs

diff --git a/SacsStandardBase/Base/Helpers/SacsContentTypeHelper.cs b/SacsStandardBase/Base/Helpers/SacsContentTypeHelper.cs
index 4379489..bde5764 100644
--- a/SacsStandardBase/Base/Helpers/SacsContentTypeHelper.cs
+++ b/SacsStandardBase/Base/Helpers/SacsContentTypeHelper.cs
@@ -42,7 +42,7 @@ namespace Sarand.Net.Standard.Base.Helpers
 		// Data members.
 		private static readonly List<ContentTypeData> contentTypes;
 		private static FileExtensionContentTypeProvider provider = null;
-		private static readonly HashSet<Sacs.MimeType> allowedMimeTypes_CandidateCV = new HashSet<Sacs.MimeType>()
+		private static readonly HashSet<Sacs.MimeType> allowedMimeTypes_CV = new HashSet<Sacs.MimeType>()
 		{
 			Sacs.MimeType.MsDoc,
 			Sacs.MimeType.MsDocx,
diff --git a/SacsStandardBase/Base/Utils/ImageUtils.cs b/SacsStandardBase/Base/Utils/ImageUtils.cs
new file mode 100644
index 0000000..118a70e
--- /dev/null
+++ b/SacsStandardBase/Base/Utils/ImageUtils.cs
@@ -0,0 +1,57 @@
+using Sarand.Net.Standard.Base.App;
+using SixLabors.ImageSharp;
+using SixLabors.ImageSharp.PixelFormats;
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Sarand.Net.Standard.Base.Utils
+{
+	//=======================================================================
+	// Image handling methods utilising SixLabors ImageSharp package.
+	//=======================================================================
+	public static class ImageUtils
+	{
+		//-------------------------------------------------------------------
+		private static readonly String className = typeof(ImageUtils).ToString();
+
+		//-------------------------------------------------------------------
+		public class ImageConfig
+		{
+			public byte[] ImageData { get; set; }
+			public bool ValidImage { get; set; }
+			public int Width { get; set; }
+			public int Height { get; set; }
+		}
+		public static ImageConfig VerifyImageData(byte[] imageData)
+		{
+			String fn = className + ".VerifyImageData";
+			ImageConfig imageConfig = new ImageConfig();
+			imageConfig.ImageData = imageData;
+			try
+			{
+				var image = Image.Load<Rgba32>(imageData);
+				if (image == null) return imageConfig;
+				imageConfig.Width = image.Width;
+				imageConfig.Height = image.Height;
+				imageConfig.ValidImage = true;
+				return imageConfig;
+			}
+			catch (Exception exc)
+			{
+				SaLogger.Warn(fn + " " + ExceptionUtil.GetLogMessage(exc));
+			}
+			return imageConfig;
+		}
+
+		// Load from byte array.
+		public static Image LoadImage(byte[] imageData)
+		{
+			var image = Image.Load<Rgba32>(imageData);
+			return image;
+		}
+
+		//-------------------------------------------------------------------
+	}
+	//=======================================================================
+}
diff --git a/SacsStandardBase/SacsStandardBase.csproj b/SacsStandardBase/SacsStandardBase.csproj
index 68cfd70..aaefc57 100644
--- a/SacsStandardBase/SacsStandardBase.csproj
+++ b/SacsStandardBase/SacsStandardBase.csproj
@@ -11,6 +11,7 @@
     <PackageReference Include="Microsoft.AspNetCore.Http" Version="2.2.2" />
     <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="1.0.3" />
   </ItemGroup>
 
 	<ItemGroup>