Ok, Just Do It!

BrightSharp.Toolkit.Extra/LocalSchemeHandlerFactory.cs

@@ -0,0 +1,73 @@
+using CefSharp;
+using System;
+using System.IO;
+using System.Net;
+
+namespace BrightSharp.Toolkit.Extra
+{
+
+    public class FolderSchemeHandlerFactory : ISchemeHandlerFactory
+    {
+        private string rootFolder;
+        private string defaultPage;
+        private string schemeName;
+        private string hostName;
+
+        public FolderSchemeHandlerFactory(string rootFolder, string schemeName = null, string hostName = null, string defaultPage = "index.html")
+        {
+            this.rootFolder = Path.GetFullPath(rootFolder);
+            this.defaultPage = defaultPage;
+            this.schemeName = schemeName;
+            this.hostName = hostName;
+
+            if (!Directory.Exists(this.rootFolder))
+            {
+                throw new DirectoryNotFoundException(this.rootFolder);
+            }
+        }
+
+        IResourceHandler ISchemeHandlerFactory.Create(IBrowser browser, IFrame frame, string schemeName, IRequest request)
+        {
+            if (this.schemeName != null && !schemeName.Equals(this.schemeName, StringComparison.OrdinalIgnoreCase))
+            {
+                var invalidSchemeName = ResourceHandler.FromString(string.Format("SchemeName {0} does not match the expected SchemeName of {1}.", schemeName, this.schemeName));
+                invalidSchemeName.StatusCode = (int)HttpStatusCode.NotFound;
+
+                return invalidSchemeName;
+            }
+            
+            var uri = new Uri(request.Url);
+
+            if (hostName != null && !uri.Host.Equals(hostName, StringComparison.OrdinalIgnoreCase))
+            {
+                var invalidHostName = ResourceHandler.FromString(string.Format("HostName {0} does not match the expected HostName of {1}.", uri.Host, hostName));
+                invalidHostName.StatusCode = (int)HttpStatusCode.NotFound;
+
+                return invalidHostName;
+            }
+
+            //Get the absolute path and remove the leading slash
+            var asbolutePath = uri.Host + uri.AbsolutePath;
+
+            if (string.IsNullOrEmpty(asbolutePath))
+            {
+                asbolutePath = defaultPage;
+            }
+
+            var filePath = Path.GetFullPath(Path.Combine(rootFolder, asbolutePath));
+
+            //Check the file requested is within the specified path and that the file exists
+            if (filePath.StartsWith(rootFolder, StringComparison.OrdinalIgnoreCase) && File.Exists(filePath))
+            {
+                var fileExtension = Path.GetExtension(filePath);
+                var mimeType = ResourceHandler.GetMimeType(fileExtension);
+                return ResourceHandler.FromFilePath(filePath, mimeType);
+            }
+
+            var fileNotFoundResourceHandler = ResourceHandler.FromString("File Not Found - " + filePath);
+            fileNotFoundResourceHandler.StatusCode = (int)HttpStatusCode.NotFound;
+
+            return fileNotFoundResourceHandler;
+        }
+    }
+}