Add missing file.

CefGlue.Common/CefGlue.Common.csproj

@@ -27,7 +27,6 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="JsonRpcLite" Version="1.0.1" />
         <PackageReference Include="NLog" Version="4.7.8" />
         <PackageReference Include="System.Threading.Tasks.Dataflow" Version="5.0.0" />
         <PackageReference Include="Xilium.CefGlue" Version="1.0.0" />

CefGlue.Common/Handlers/CustomRequestHandler.cs

@@ -0,0 +1,128 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+
+namespace Xilium.CefGlue.Common.Handlers
+{
+
+    public class HandleResult
+    {
+        public string MimeType { get; }
+
+        public Stream ResultStream { get; }
+
+        public HandleResult(Stream resultStream, string mimeType)
+        {
+            ResultStream = resultStream;
+            MimeType = mimeType;
+        }
+    }
+
+    public interface IHostHandler
+    {
+        string Host { get; }
+
+        HandleResult Handle(string path, byte[] postData =  null);
+
+    }
+
+    public sealed class FileSystemHostHandler: IHostHandler
+    {
+        private readonly string _baseFolder;
+
+        public string Host { get; }
+
+        public FileSystemHostHandler(string host, string baseFolder)
+        {
+            Host = host;
+            _baseFolder = baseFolder;
+        }
+
+        public HandleResult Handle(string path, byte[] postData = null)
+        {
+            try
+            {
+                var absolutePath = path;
+                if (absolutePath.StartsWith("/"))
+                {
+                    absolutePath = absolutePath.Substring(1);
+                }
+                var filePath = Path.Combine(_baseFolder, absolutePath);
+                if (File.Exists(filePath))
+                {
+                    var mimeType = MimeTypeMap.GetMimeType(Path.GetExtension(filePath).ToLower());
+                    var resultStream = new MemoryStream(File.ReadAllBytes(filePath));
+                    return new HandleResult(resultStream, mimeType);
+                }
+            }
+            catch
+            {
+                // ignored
+            }
+            return null;
+        }
+    }
+
+    internal class CustomResourceRequestHandler : CefResourceRequestHandler
+    {
+
+        private readonly Dictionary<string, IHostHandler> _handlers = new();
+
+
+        public void RegisterHostHandler(IHostHandler hostHandler)
+        {
+            _handlers.Add(hostHandler.Host,hostHandler);
+        }
+
+        protected override CefCookieAccessFilter GetCookieAccessFilter(CefBrowser browser, CefFrame frame, CefRequest request)
+        {
+            return null;
+        }
+
+        protected override CefResourceHandler GetResourceHandler(CefBrowser browser, CefFrame frame, CefRequest request)
+        {
+            var uri = new Uri(request.Url);
+            if (_handlers.ContainsKey(uri.Host))
+            {
+                var handler = _handlers[uri.Host];
+                byte[] postData = null;
+                if (request.Method.ToLower() == "post")
+                {
+                    postData = request.PostData?.GetElements()?[0]?.GetBytes();
+                }
+                var result = handler.Handle(uri.AbsolutePath, postData);
+                if (result != null)
+                {
+                    return new DefaultResourceHandler
+                    {
+                        MimeType = result.MimeType,
+                        Response = result.ResultStream,
+                    };
+                }
+            }
+
+            return null;
+        }
+    }
+
+
+    public class CustomRequestHandler : RequestHandler
+    {
+        private readonly CustomResourceRequestHandler _resourceRequestHandler;
+
+        public CustomRequestHandler()
+        {
+            _resourceRequestHandler = new CustomResourceRequestHandler();
+        }
+
+        public void RegisterHostHandler(IHostHandler hostHandler)
+        {
+            _resourceRequestHandler.RegisterHostHandler(hostHandler);
+        }
+
+        protected override CefResourceRequestHandler GetResourceRequestHandler(CefBrowser browser, CefFrame frame, CefRequest request, bool isNavigation, bool isDownload, string requestInitiator, ref bool disableDefaultHandling)
+        {
+            return _resourceRequestHandler;
+        }
+    }
+}

CefGlue.Common/Handlers/MimeTypeMap.cs

@@ -0,0 +1,822 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Xilium.CefGlue.Common.Handlers
+{
+    /// <summary>
+    /// Class MimeTypeMap.
+    /// </summary>
+    public static class MimeTypeMap
+    {
+        private const string Dot = ".";
+        private const string QuestionMark = "?";
+        private const string DefaultMimeType = "application/octet-stream";
+        private static readonly Lazy<IDictionary<string, string>> _mappings = new Lazy<IDictionary<string, string>>(BuildMappings);
+
+        private static IDictionary<string, string> BuildMappings()
+        {
+            var mappings = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase) {
+
+                #region Big freaking list of mime types
+            
+                // maps both ways,
+                // extension -> mime type
+                //   and
+                // mime type -> extension
+                //
+                // any mime types on left side not pre-loaded on right side, are added automatically
+                // some mime types can map to multiple extensions, so to get a deterministic mapping,
+                // add those to the dictionary specifically
+                //
+                // combination of values from Windows 7 Registry and 
+                // from C:\Windows\System32\inetsrv\config\applicationHost.config
+                // some added, including .7z and .dat
+                //
+                // Some added based on http://www.iana.org/assignments/media-types/media-types.xhtml
+                // which lists mime types, but not extensions
+                //
+                {".323", "text/h323"},
+                {".3g2", "video/3gpp2"},
+                {".3gp", "video/3gpp"},
+                {".3gp2", "video/3gpp2"},
+                {".3gpp", "video/3gpp"},
+                {".7z", "application/x-7z-compressed"},
+                {".aa", "audio/audible"},
+                {".AAC", "audio/aac"},
+                {".aaf", "application/octet-stream"},
+                {".aax", "audio/vnd.audible.aax"},
+                {".ac3", "audio/ac3"},
+                {".aca", "application/octet-stream"},
+                {".accda", "application/msaccess.addin"},
+                {".accdb", "application/msaccess"},
+                {".accdc", "application/msaccess.cab"},
+                {".accde", "application/msaccess"},
+                {".accdr", "application/msaccess.runtime"},
+                {".accdt", "application/msaccess"},
+                {".accdw", "application/msaccess.webapplication"},
+                {".accft", "application/msaccess.ftemplate"},
+                {".acx", "application/internet-property-stream"},
+                {".AddIn", "text/xml"},
+                {".ade", "application/msaccess"},
+                {".adobebridge", "application/x-bridge-url"},
+                {".adp", "application/msaccess"},
+                {".ADT", "audio/vnd.dlna.adts"},
+                {".ADTS", "audio/aac"},
+                {".afm", "application/octet-stream"},
+                {".ai", "application/postscript"},
+                {".aif", "audio/aiff"},
+                {".aifc", "audio/aiff"},
+                {".aiff", "audio/aiff"},
+                {".air", "application/vnd.adobe.air-application-installer-package+zip"},
+                {".amc", "application/mpeg"},
+                {".anx", "application/annodex"},
+                {".apk", "application/vnd.android.package-archive"},
+                {".apng", "image/apng"},
+                {".application", "application/x-ms-application"},
+                {".art", "image/x-jg"},
+                {".asa", "application/xml"},
+                {".asax", "application/xml"},
+                {".ascx", "application/xml"},
+                {".asd", "application/octet-stream"},
+                {".asf", "video/x-ms-asf"},
+                {".ashx", "application/xml"},
+                {".asi", "application/octet-stream"},
+                {".asm", "text/plain"},
+                {".asmx", "application/xml"},
+                {".aspx", "application/xml"},
+                {".asr", "video/x-ms-asf"},
+                {".asx", "video/x-ms-asf"},
+                {".atom", "application/atom+xml"},
+                {".au", "audio/basic"},
+                {".avci", "image/avci"},
+                {".avcs", "image/avcs"},
+                {".avi", "video/x-msvideo"},
+                {".avif", "image/avif"},
+                {".avifs", "image/avif-sequence"},
+                {".axa", "audio/annodex"},
+                {".axs", "application/olescript"},
+                {".axv", "video/annodex"},
+                {".bas", "text/plain"},
+                {".bcpio", "application/x-bcpio"},
+                {".bin", "application/octet-stream"},
+                {".bmp", "image/bmp"},
+                {".c", "text/plain"},
+                {".cab", "application/octet-stream"},
+                {".caf", "audio/x-caf"},
+                {".calx", "application/vnd.ms-office.calx"},
+                {".cat", "application/vnd.ms-pki.seccat"},
+                {".cc", "text/plain"},
+                {".cd", "text/plain"},
+                {".cdda", "audio/aiff"},
+                {".cdf", "application/x-cdf"},
+                {".cer", "application/x-x509-ca-cert"},
+                {".cfg", "text/plain"},
+                {".chm", "application/octet-stream"},
+                {".class", "application/x-java-applet"},
+                {".clp", "application/x-msclip"},
+                {".cmd", "text/plain"},
+                {".cmx", "image/x-cmx"},
+                {".cnf", "text/plain"},
+                {".cod", "image/cis-cod"},
+                {".config", "application/xml"},
+                {".contact", "text/x-ms-contact"},
+                {".coverage", "application/xml"},
+                {".cpio", "application/x-cpio"},
+                {".cpp", "text/plain"},
+                {".crd", "application/x-mscardfile"},
+                {".crl", "application/pkix-crl"},
+                {".crt", "application/x-x509-ca-cert"},
+                {".cs", "text/plain"},
+                {".csdproj", "text/plain"},
+                {".csh", "application/x-csh"},
+                {".csproj", "text/plain"},
+                {".css", "text/css"},
+                {".csv", "text/csv"},
+                {".cur", "application/octet-stream"},
+                {".czx", "application/x-czx"},
+                {".cxx", "text/plain"},
+                {".dat", "application/octet-stream"},
+                {".datasource", "application/xml"},
+                {".dbproj", "text/plain"},
+                {".dcr", "application/x-director"},
+                {".def", "text/plain"},
+                {".deploy", "application/octet-stream"},
+                {".der", "application/x-x509-ca-cert"},
+                {".dgml", "application/xml"},
+                {".dib", "image/bmp"},
+                {".dif", "video/x-dv"},
+                {".dir", "application/x-director"},
+                {".disco", "text/xml"},
+                {".divx", "video/divx"},
+                {".dll", "application/x-msdownload"},
+                {".dll.config", "text/xml"},
+                {".dlm", "text/dlm"},
+                {".doc", "application/msword"},
+                {".docm", "application/vnd.ms-word.document.macroEnabled.12"},
+                {".docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
+                {".dot", "application/msword"},
+                {".dotm", "application/vnd.ms-word.template.macroEnabled.12"},
+                {".dotx", "application/vnd.openxmlformats-officedocument.wordprocessingml.template"},
+                {".dsp", "application/octet-stream"},
+                {".dsw", "text/plain"},
+                {".dtd", "text/xml"},
+                {".dtsConfig", "text/xml"},
+                {".dv", "video/x-dv"},
+                {".dvi", "application/x-dvi"},
+                {".dwf", "drawing/x-dwf"},
+                {".dwg", "application/acad"},
+                {".dwp", "application/octet-stream"},
+                {".dxf", "application/x-dxf"},
+                {".dxr", "application/x-director"},
+                {".eml", "message/rfc822"},
+                {".emf", "image/emf"},
+                {".emz", "application/octet-stream"},
+                {".eot", "application/vnd.ms-fontobject"},
+                {".eps", "application/postscript"},
+                {".es", "application/ecmascript"},
+                {".etl", "application/etl"},
+                {".etx", "text/x-setext"},
+                {".evy", "application/envoy"},
+                {".exe", "application/vnd.microsoft.portable-executable"},
+                {".exe.config", "text/xml"},
+                {".f4v", "video/mp4"},
+                {".fdf", "application/vnd.fdf"},
+                {".fif", "application/fractals"},
+                {".filters", "application/xml"},
+                {".fla", "application/octet-stream"},
+                {".flac", "audio/flac"},
+                {".flr", "x-world/x-vrml"},
+                {".flv", "video/x-flv"},
+                {".fsscript", "application/fsharp-script"},
+                {".fsx", "application/fsharp-script"},
+                {".generictest", "application/xml"},
+                {".gif", "image/gif"},
+                {".gpx", "application/gpx+xml"},
+                {".group", "text/x-ms-group"},
+                {".gsm", "audio/x-gsm"},
+                {".gtar", "application/x-gtar"},
+                {".gz", "application/x-gzip"},
+                {".h", "text/plain"},
+                {".hdf", "application/x-hdf"},
+                {".hdml", "text/x-hdml"},
+                {".heic", "image/heic"},
+                {".heics", "image/heic-sequence"},
+                {".heif", "image/heif"},
+                {".heifs", "image/heif-sequence"},
+                {".hhc", "application/x-oleobject"},
+                {".hhk", "application/octet-stream"},
+                {".hhp", "application/octet-stream"},
+                {".hlp", "application/winhlp"},
+                {".hpp", "text/plain"},
+                {".hqx", "application/mac-binhex40"},
+                {".hta", "application/hta"},
+                {".htc", "text/x-component"},
+                {".htm", "text/html"},
+                {".html", "text/html"},
+                {".htt", "text/webviewhtml"},
+                {".hxa", "application/xml"},
+                {".hxc", "application/xml"},
+                {".hxd", "application/octet-stream"},
+                {".hxe", "application/xml"},
+                {".hxf", "application/xml"},
+                {".hxh", "application/octet-stream"},
+                {".hxi", "application/octet-stream"},
+                {".hxk", "application/xml"},
+                {".hxq", "application/octet-stream"},
+                {".hxr", "application/octet-stream"},
+                {".hxs", "application/octet-stream"},
+                {".hxt", "text/html"},
+                {".hxv", "application/xml"},
+                {".hxw", "application/octet-stream"},
+                {".hxx", "text/plain"},
+                {".i", "text/plain"},
+                {".ical", "text/calendar"},
+                {".icalendar", "text/calendar"},
+                {".ico", "image/x-icon"},
+                {".ics", "text/calendar"},
+                {".idl", "text/plain"},
+                {".ief", "image/ief"},
+                {".ifb", "text/calendar"},
+                {".iii", "application/x-iphone"},
+                {".inc", "text/plain"},
+                {".inf", "application/octet-stream"},
+                {".ini", "text/plain"},
+                {".inl", "text/plain"},
+                {".ins", "application/x-internet-signup"},
+                {".ipa", "application/x-itunes-ipa"},
+                {".ipg", "application/x-itunes-ipg"},
+                {".ipproj", "text/plain"},
+                {".ipsw", "application/x-itunes-ipsw"},
+                {".iqy", "text/x-ms-iqy"},
+                {".isp", "application/x-internet-signup"},
+                {".isma", "application/octet-stream"},
+                {".ismv", "application/octet-stream"},
+                {".ite", "application/x-itunes-ite"},
+                {".itlp", "application/x-itunes-itlp"},
+                {".itms", "application/x-itunes-itms"},
+                {".itpc", "application/x-itunes-itpc"},
+                {".IVF", "video/x-ivf"},
+                {".jar", "application/java-archive"},
+                {".java", "application/octet-stream"},
+                {".jck", "application/liquidmotion"},
+                {".jcz", "application/liquidmotion"},
+                {".jfif", "image/pjpeg"},
+                {".jnlp", "application/x-java-jnlp-file"},
+                {".jpb", "application/octet-stream"},
+                {".jpe", "image/jpeg"},
+                {".jpeg", "image/jpeg"},
+                {".jpg", "image/jpeg"},
+                {".js", "application/javascript"},
+                {".json", "application/json"},
+                {".jsx", "text/jscript"},
+                {".jsxbin", "text/plain"},
+                {".latex", "application/x-latex"},
+                {".library-ms", "application/windows-library+xml"},
+                {".lit", "application/x-ms-reader"},
+                {".loadtest", "application/xml"},
+                {".lpk", "application/octet-stream"},
+                {".lsf", "video/x-la-asf"},
+                {".lst", "text/plain"},
+                {".lsx", "video/x-la-asf"},
+                {".lzh", "application/octet-stream"},
+                {".m13", "application/x-msmediaview"},
+                {".m14", "application/x-msmediaview"},
+                {".m1v", "video/mpeg"},
+                {".m2t", "video/vnd.dlna.mpeg-tts"},
+                {".m2ts", "video/vnd.dlna.mpeg-tts"},
+                {".m2v", "video/mpeg"},
+                {".m3u", "audio/x-mpegurl"},
+                {".m3u8", "audio/x-mpegurl"},
+                {".m4a", "audio/m4a"},
+                {".m4b", "audio/m4b"},
+                {".m4p", "audio/m4p"},
+                {".m4r", "audio/x-m4r"},
+                {".m4v", "video/x-m4v"},
+                {".mac", "image/x-macpaint"},
+                {".mak", "text/plain"},
+                {".man", "application/x-troff-man"},
+                {".manifest", "application/x-ms-manifest"},
+                {".map", "text/plain"},
+                {".master", "application/xml"},
+                {".mbox", "application/mbox"},
+                {".mda", "application/msaccess"},
+                {".mdb", "application/x-msaccess"},
+                {".mde", "application/msaccess"},
+                {".mdp", "application/octet-stream"},
+                {".me", "application/x-troff-me"},
+                {".mfp", "application/x-shockwave-flash"},
+                {".mht", "message/rfc822"},
+                {".mhtml", "message/rfc822"},
+                {".mid", "audio/mid"},
+                {".midi", "audio/mid"},
+                {".mix", "application/octet-stream"},
+                {".mk", "text/plain"},
+                {".mk3d", "video/x-matroska-3d"},
+                {".mka", "audio/x-matroska"},
+                {".mkv", "video/x-matroska"},
+                {".mmf", "application/x-smaf"},
+                {".mno", "text/xml"},
+                {".mny", "application/x-msmoney"},
+                {".mod", "video/mpeg"},
+                {".mov", "video/quicktime"},
+                {".movie", "video/x-sgi-movie"},
+                {".mp2", "video/mpeg"},
+                {".mp2v", "video/mpeg"},
+                {".mp3", "audio/mpeg"},
+                {".mp4", "video/mp4"},
+                {".mp4v", "video/mp4"},
+                {".mpa", "video/mpeg"},
+                {".mpe", "video/mpeg"},
+                {".mpeg", "video/mpeg"},
+                {".mpf", "application/vnd.ms-mediapackage"},
+                {".mpg", "video/mpeg"},
+                {".mpp", "application/vnd.ms-project"},
+                {".mpv2", "video/mpeg"},
+                {".mqv", "video/quicktime"},
+                {".ms", "application/x-troff-ms"},
+                {".msg", "application/vnd.ms-outlook"},
+                {".msi", "application/octet-stream"},
+                {".mso", "application/octet-stream"},
+                {".mts", "video/vnd.dlna.mpeg-tts"},
+                {".mtx", "application/xml"},
+                {".mvb", "application/x-msmediaview"},
+                {".mvc", "application/x-miva-compiled"},
+                {".mxf", "application/mxf"},
+                {".mxp", "application/x-mmxp"},
+                {".nc", "application/x-netcdf"},
+                {".nsc", "video/x-ms-asf"},
+                {".nws", "message/rfc822"},
+                {".ocx", "application/octet-stream"},
+                {".oda", "application/oda"},
+                {".odb", "application/vnd.oasis.opendocument.database"},
+                {".odc", "application/vnd.oasis.opendocument.chart"},
+                {".odf", "application/vnd.oasis.opendocument.formula"},
+                {".odg", "application/vnd.oasis.opendocument.graphics"},
+                {".odh", "text/plain"},
+                {".odi", "application/vnd.oasis.opendocument.image"},
+                {".odl", "text/plain"},
+                {".odm", "application/vnd.oasis.opendocument.text-master"},
+                {".odp", "application/vnd.oasis.opendocument.presentation"},
+                {".ods", "application/vnd.oasis.opendocument.spreadsheet"},
+                {".odt", "application/vnd.oasis.opendocument.text"},
+                {".oga", "audio/ogg"},
+                {".ogg", "audio/ogg"},
+                {".ogv", "video/ogg"},
+                {".ogx", "application/ogg"},
+                {".one", "application/onenote"},
+                {".onea", "application/onenote"},
+                {".onepkg", "application/onenote"},
+                {".onetmp", "application/onenote"},
+                {".onetoc", "application/onenote"},
+                {".onetoc2", "application/onenote"},
+                {".opus", "audio/ogg"},
+                {".orderedtest", "application/xml"},
+                {".osdx", "application/opensearchdescription+xml"},
+                {".otf", "application/font-sfnt"},
+                {".otg", "application/vnd.oasis.opendocument.graphics-template"},
+                {".oth", "application/vnd.oasis.opendocument.text-web"},
+                {".otp", "application/vnd.oasis.opendocument.presentation-template"},
+                {".ots", "application/vnd.oasis.opendocument.spreadsheet-template"},
+                {".ott", "application/vnd.oasis.opendocument.text-template"},
+                {".oxps", "application/oxps"},
+                {".oxt", "application/vnd.openofficeorg.extension"},
+                {".p10", "application/pkcs10"},
+                {".p12", "application/x-pkcs12"},
+                {".p7b", "application/x-pkcs7-certificates"},
+                {".p7c", "application/pkcs7-mime"},
+                {".p7m", "application/pkcs7-mime"},
+                {".p7r", "application/x-pkcs7-certreqresp"},
+                {".p7s", "application/pkcs7-signature"},
+                {".pbm", "image/x-portable-bitmap"},
+                {".pcast", "application/x-podcast"},
+                {".pct", "image/pict"},
+                {".pcx", "application/octet-stream"},
+                {".pcz", "application/octet-stream"},
+                {".pdf", "application/pdf"},
+                {".pfb", "application/octet-stream"},
+                {".pfm", "application/octet-stream"},
+                {".pfx", "application/x-pkcs12"},
+                {".pgm", "image/x-portable-graymap"},
+                {".pic", "image/pict"},
+                {".pict", "image/pict"},
+                {".pkgdef", "text/plain"},
+                {".pkgundef", "text/plain"},
+                {".pko", "application/vnd.ms-pki.pko"},
+                {".pls", "audio/scpls"},
+                {".pma", "application/x-perfmon"},
+                {".pmc", "application/x-perfmon"},
+                {".pml", "application/x-perfmon"},
+                {".pmr", "application/x-perfmon"},
+                {".pmw", "application/x-perfmon"},
+                {".png", "image/png"},
+                {".pnm", "image/x-portable-anymap"},
+                {".pnt", "image/x-macpaint"},
+                {".pntg", "image/x-macpaint"},
+                {".pnz", "image/png"},
+                {".pot", "application/vnd.ms-powerpoint"},
+                {".potm", "application/vnd.ms-powerpoint.template.macroEnabled.12"},
+                {".potx", "application/vnd.openxmlformats-officedocument.presentationml.template"},
+                {".ppa", "application/vnd.ms-powerpoint"},
+                {".ppam", "application/vnd.ms-powerpoint.addin.macroEnabled.12"},
+                {".ppm", "image/x-portable-pixmap"},
+                {".pps", "application/vnd.ms-powerpoint"},
+                {".ppsm", "application/vnd.ms-powerpoint.slideshow.macroEnabled.12"},
+                {".ppsx", "application/vnd.openxmlformats-officedocument.presentationml.slideshow"},
+                {".ppt", "application/vnd.ms-powerpoint"},
+                {".pptm", "application/vnd.ms-powerpoint.presentation.macroEnabled.12"},
+                {".pptx", "application/vnd.openxmlformats-officedocument.presentationml.presentation"},
+                {".prf", "application/pics-rules"},
+                {".prm", "application/octet-stream"},
+                {".prx", "application/octet-stream"},
+                {".ps", "application/postscript"},
+                {".psc1", "application/PowerShell"},
+                {".psd", "application/octet-stream"},
+                {".psess", "application/xml"},
+                {".psm", "application/octet-stream"},
+                {".psp", "application/octet-stream"},
+                {".pst", "application/vnd.ms-outlook"},
+                {".pub", "application/x-mspublisher"},
+                {".pwz", "application/vnd.ms-powerpoint"},
+                {".qht", "text/x-html-insertion"},
+                {".qhtm", "text/x-html-insertion"},
+                {".qt", "video/quicktime"},
+                {".qti", "image/x-quicktime"},
+                {".qtif", "image/x-quicktime"},
+                {".qtl", "application/x-quicktimeplayer"},
+                {".qxd", "application/octet-stream"},
+                {".ra", "audio/x-pn-realaudio"},
+                {".ram", "audio/x-pn-realaudio"},
+                {".rar", "application/x-rar-compressed"},
+                {".ras", "image/x-cmu-raster"},
+                {".rat", "application/rat-file"},
+                {".rc", "text/plain"},
+                {".rc2", "text/plain"},
+                {".rct", "text/plain"},
+                {".rdlc", "application/xml"},
+                {".reg", "text/plain"},
+                {".resx", "application/xml"},
+                {".rf", "image/vnd.rn-realflash"},
+                {".rgb", "image/x-rgb"},
+                {".rgs", "text/plain"},
+                {".rm", "application/vnd.rn-realmedia"},
+                {".rmi", "audio/mid"},
+                {".rmp", "application/vnd.rn-rn_music_package"},
+                {".rmvb", "application/vnd.rn-realmedia-vbr"},
+                {".roff", "application/x-troff"},
+                {".rpm", "audio/x-pn-realaudio-plugin"},
+                {".rqy", "text/x-ms-rqy"},
+                {".rtf", "application/rtf"},
+                {".rtx", "text/richtext"},
+                {".rvt", "application/octet-stream"},
+                {".ruleset", "application/xml"},
+                {".s", "text/plain"},
+                {".safariextz", "application/x-safari-safariextz"},
+                {".scd", "application/x-msschedule"},
+                {".scr", "text/plain"},
+                {".sct", "text/scriptlet"},
+                {".sd2", "audio/x-sd2"},
+                {".sdp", "application/sdp"},
+                {".sea", "application/octet-stream"},
+                {".searchConnector-ms", "application/windows-search-connector+xml"},
+                {".setpay", "application/set-payment-initiation"},
+                {".setreg", "application/set-registration-initiation"},
+                {".settings", "application/xml"},
+                {".sgimb", "application/x-sgimb"},
+                {".sgml", "text/sgml"},
+                {".sh", "application/x-sh"},
+                {".shar", "application/x-shar"},
+                {".shtml", "text/html"},
+                {".sit", "application/x-stuffit"},
+                {".sitemap", "application/xml"},
+                {".skin", "application/xml"},
+                {".skp", "application/x-koan"},
+                {".sldm", "application/vnd.ms-powerpoint.slide.macroEnabled.12"},
+                {".sldx", "application/vnd.openxmlformats-officedocument.presentationml.slide"},
+                {".slk", "application/vnd.ms-excel"},
+                {".sln", "text/plain"},
+                {".slupkg-ms", "application/x-ms-license"},
+                {".smd", "audio/x-smd"},
+                {".smi", "application/octet-stream"},
+                {".smx", "audio/x-smd"},
+                {".smz", "audio/x-smd"},
+                {".snd", "audio/basic"},
+                {".snippet", "application/xml"},
+                {".snp", "application/octet-stream"},
+                {".sql", "application/sql"},
+                {".sol", "text/plain"},
+                {".sor", "text/plain"},
+                {".spc", "application/x-pkcs7-certificates"},
+                {".spl", "application/futuresplash"},
+                {".spx", "audio/ogg"},
+                {".src", "application/x-wais-source"},
+                {".srf", "text/plain"},
+                {".SSISDeploymentManifest", "text/xml"},
+                {".ssm", "application/streamingmedia"},
+                {".sst", "application/vnd.ms-pki.certstore"},
+                {".stl", "application/vnd.ms-pki.stl"},
+                {".sv4cpio", "application/x-sv4cpio"},
+                {".sv4crc", "application/x-sv4crc"},
+                {".svc", "application/xml"},
+                {".svg", "image/svg+xml"},
+                {".swf", "application/x-shockwave-flash"},
+                {".step", "application/step"},
+                {".stp", "application/step"},
+                {".t", "application/x-troff"},
+                {".tar", "application/x-tar"},
+                {".tcl", "application/x-tcl"},
+                {".testrunconfig", "application/xml"},
+                {".testsettings", "application/xml"},
+                {".tex", "application/x-tex"},
+                {".texi", "application/x-texinfo"},
+                {".texinfo", "application/x-texinfo"},
+                {".tgz", "application/x-compressed"},
+                {".thmx", "application/vnd.ms-officetheme"},
+                {".thn", "application/octet-stream"},
+                {".tif", "image/tiff"},
+                {".tiff", "image/tiff"},
+                {".tlh", "text/plain"},
+                {".tli", "text/plain"},
+                {".toc", "application/octet-stream"},
+                {".tr", "application/x-troff"},
+                {".trm", "application/x-msterminal"},
+                {".trx", "application/xml"},
+                {".ts", "video/vnd.dlna.mpeg-tts"},
+                {".tsv", "text/tab-separated-values"},
+                {".ttf", "application/font-sfnt"},
+                {".tts", "video/vnd.dlna.mpeg-tts"},
+                {".txt", "text/plain"},
+                {".u32", "application/octet-stream"},
+                {".uls", "text/iuls"},
+                {".user", "text/plain"},
+                {".ustar", "application/x-ustar"},
+                {".vb", "text/plain"},
+                {".vbdproj", "text/plain"},
+                {".vbk", "video/mpeg"},
+                {".vbproj", "text/plain"},
+                {".vbs", "text/vbscript"},
+                {".vcf", "text/x-vcard"},
+                {".vcproj", "application/xml"},
+                {".vcs", "text/plain"},
+                {".vcxproj", "application/xml"},
+                {".vddproj", "text/plain"},
+                {".vdp", "text/plain"},
+                {".vdproj", "text/plain"},
+                {".vdx", "application/vnd.ms-visio.viewer"},
+                {".vml", "text/xml"},
+                {".vscontent", "application/xml"},
+                {".vsct", "text/xml"},
+                {".vsd", "application/vnd.visio"},
+                {".vsi", "application/ms-vsi"},
+                {".vsix", "application/vsix"},
+                {".vsixlangpack", "text/xml"},
+                {".vsixmanifest", "text/xml"},
+                {".vsmdi", "application/xml"},
+                {".vspscc", "text/plain"},
+                {".vss", "application/vnd.visio"},
+                {".vsscc", "text/plain"},
+                {".vssettings", "text/xml"},
+                {".vssscc", "text/plain"},
+                {".vst", "application/vnd.visio"},
+                {".vstemplate", "text/xml"},
+                {".vsto", "application/x-ms-vsto"},
+                {".vsw", "application/vnd.visio"},
+                {".vsx", "application/vnd.visio"},
+                {".vtt", "text/vtt"},
+                {".vtx", "application/vnd.visio"},
+                {".wasm", "application/wasm"},
+                {".wav", "audio/wav"},
+                {".wave", "audio/wav"},
+                {".wax", "audio/x-ms-wax"},
+                {".wbk", "application/msword"},
+                {".wbmp", "image/vnd.wap.wbmp"},
+                {".wcm", "application/vnd.ms-works"},
+                {".wdb", "application/vnd.ms-works"},
+                {".wdp", "image/vnd.ms-photo"},
+                {".webarchive", "application/x-safari-webarchive"},
+                {".webm", "video/webm"},
+                {".webp", "image/webp"}, /* https://en.wikipedia.org/wiki/WebP */
+                {".webtest", "application/xml"},
+                {".wiq", "application/xml"},
+                {".wiz", "application/msword"},
+                {".wks", "application/vnd.ms-works"},
+                {".WLMP", "application/wlmoviemaker"},
+                {".wlpginstall", "application/x-wlpg-detect"},
+                {".wlpginstall3", "application/x-wlpg3-detect"},
+                {".wm", "video/x-ms-wm"},
+                {".wma", "audio/x-ms-wma"},
+                {".wmd", "application/x-ms-wmd"},
+                {".wmf", "application/x-msmetafile"},
+                {".wml", "text/vnd.wap.wml"},
+                {".wmlc", "application/vnd.wap.wmlc"},
+                {".wmls", "text/vnd.wap.wmlscript"},
+                {".wmlsc", "application/vnd.wap.wmlscriptc"},
+                {".wmp", "video/x-ms-wmp"},
+                {".wmv", "video/x-ms-wmv"},
+                {".wmx", "video/x-ms-wmx"},
+                {".wmz", "application/x-ms-wmz"},
+                {".woff", "application/font-woff"},
+                {".woff2", "application/font-woff2"},
+                {".wpl", "application/vnd.ms-wpl"},
+                {".wps", "application/vnd.ms-works"},
+                {".wri", "application/x-mswrite"},
+                {".wrl", "x-world/x-vrml"},
+                {".wrz", "x-world/x-vrml"},
+                {".wsc", "text/scriptlet"},
+                {".wsdl", "text/xml"},
+                {".wvx", "video/x-ms-wvx"},
+                {".x", "application/directx"},
+                {".xaf", "x-world/x-vrml"},
+                {".xaml", "application/xaml+xml"},
+                {".xap", "application/x-silverlight-app"},
+                {".xbap", "application/x-ms-xbap"},
+                {".xbm", "image/x-xbitmap"},
+                {".xdr", "text/plain"},
+                {".xht", "application/xhtml+xml"},
+                {".xhtml", "application/xhtml+xml"},
+                {".xla", "application/vnd.ms-excel"},
+                {".xlam", "application/vnd.ms-excel.addin.macroEnabled.12"},
+                {".xlc", "application/vnd.ms-excel"},
+                {".xld", "application/vnd.ms-excel"},
+                {".xlk", "application/vnd.ms-excel"},
+                {".xll", "application/vnd.ms-excel"},
+                {".xlm", "application/vnd.ms-excel"},
+                {".xls", "application/vnd.ms-excel"},
+                {".xlsb", "application/vnd.ms-excel.sheet.binary.macroEnabled.12"},
+                {".xlsm", "application/vnd.ms-excel.sheet.macroEnabled.12"},
+                {".xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"},
+                {".xlt", "application/vnd.ms-excel"},
+                {".xltm", "application/vnd.ms-excel.template.macroEnabled.12"},
+                {".xltx", "application/vnd.openxmlformats-officedocument.spreadsheetml.template"},
+                {".xlw", "application/vnd.ms-excel"},
+                {".xml", "text/xml"},
+                {".xmp", "application/octet-stream"},
+                {".xmta", "application/xml"},
+                {".xof", "x-world/x-vrml"},
+                {".XOML", "text/plain"},
+                {".xpm", "image/x-xpixmap"},
+                {".xps", "application/vnd.ms-xpsdocument"},
+                {".xrm-ms", "text/xml"},
+                {".xsc", "application/xml"},
+                {".xsd", "text/xml"},
+                {".xsf", "text/xml"},
+                {".xsl", "text/xml"},
+                {".xslt", "text/xml"},
+                {".xsn", "application/octet-stream"},
+                {".xss", "application/xml"},
+                {".xspf", "application/xspf+xml"},
+                {".xtp", "application/octet-stream"},
+                {".xwd", "image/x-xwindowdump"},
+                {".z", "application/x-compress"},
+                {".zip", "application/zip"},
+
+                {"application/fsharp-script", ".fsx"},
+                {"application/msaccess", ".adp"},
+                {"application/msword", ".doc"},
+                {"application/octet-stream", ".bin"},
+                {"application/onenote", ".one"},
+                {"application/postscript", ".eps"},
+                {"application/step", ".step"},
+                {"application/vnd.ms-excel", ".xls"},
+                {"application/vnd.ms-powerpoint", ".ppt"},
+                {"application/vnd.ms-works", ".wks"},
+                {"application/vnd.visio", ".vsd"},
+                {"application/x-director", ".dir"},
+                {"application/x-msdos-program", ".exe"},
+                {"application/x-shockwave-flash", ".swf"},
+                {"application/x-x509-ca-cert", ".cer"},
+                {"application/x-zip-compressed", ".zip"},
+                {"application/xhtml+xml", ".xhtml"},
+                {"application/xml", ".xml"}, // anomaly, .xml -> text/xml, but application/xml -> many things, but all are xml, so safest is .xml
+                {"audio/aac", ".AAC"},
+                {"audio/aiff", ".aiff"},
+                {"audio/basic", ".snd"},
+                {"audio/mid", ".midi"},
+                {"audio/mp4", ".m4a"}, // one way mapping only, mime -> ext
+                {"audio/wav", ".wav"},
+                {"audio/x-m4a", ".m4a"},
+                {"audio/x-mpegurl", ".m3u"},
+                {"audio/x-pn-realaudio", ".ra"},
+                {"audio/x-smd", ".smd"},
+                {"image/bmp", ".bmp"},
+                {"image/jpeg", ".jpg"},
+                {"image/pict", ".pic"},
+                {"image/png", ".png"}, // Defined in [RFC-2045], [RFC-2048]
+                {"image/x-png", ".png"}, // See https://www.w3.org/TR/PNG/#A-Media-type :"It is recommended that implementations also recognize the media type "image/x-png"."
+                {"image/tiff", ".tiff"},
+                {"image/x-macpaint", ".mac"},
+                {"image/x-quicktime", ".qti"},
+                {"message/rfc822", ".eml"},
+                {"text/calendar", ".ics"},
+                {"text/html", ".html"},
+                {"text/plain", ".txt"},
+                {"text/scriptlet", ".wsc"},
+                {"text/xml", ".xml"},
+                {"video/3gpp", ".3gp"},
+                {"video/3gpp2", ".3gp2"},
+                {"video/mp4", ".mp4"},
+                {"video/mpeg", ".mpg"},
+                {"video/quicktime", ".mov"},
+                {"video/vnd.dlna.mpeg-tts", ".m2t"},
+                {"video/x-dv", ".dv"},
+                {"video/x-la-asf", ".lsf"},
+                {"video/x-ms-asf", ".asf"},
+                {"x-world/x-vrml", ".xof"},
+
+                #endregion
+
+                };
+
+            var cache = mappings.ToList(); // need ToList() to avoid modifying while still enumerating
+
+            foreach (var mapping in cache)
+            {
+                if (!mappings.ContainsKey(mapping.Value))
+                {
+                    mappings.Add(mapping.Value, mapping.Key);
+                }
+            }
+
+            return mappings;
+        }
+
+        /// <summary>
+        /// Tries to get the type of the MIME from the provided string.
+        /// </summary>
+        /// <param name="str">The filename or extension.</param>
+        /// <param name="mimeType">The variable to store the MIME type.</param>
+        /// <returns>The MIME type.</returns>
+        /// <exception cref="ArgumentNullException" />
+        public static bool TryGetMimeType(string str, out string mimeType)
+        {
+            if (str == null)
+            {
+                throw new ArgumentNullException(nameof(str));
+            }
+
+            var indexQuestionMark = str.IndexOf(QuestionMark, StringComparison.Ordinal);
+            if (indexQuestionMark != -1)
+            {
+                str = str.Remove(indexQuestionMark);
+            }
+
+
+            if (!str.StartsWith(Dot))
+            {
+                var index = str.LastIndexOf(Dot);
+                if (index != -1 && str.Length > index + 1)
+                {
+                    str = str.Substring(index + 1);
+                }
+
+                str = Dot + str;
+            }
+
+            return _mappings.Value.TryGetValue(str, out mimeType);
+        }
+
+        /// <summary>
+        /// Gets the type of the MIME from the provided string.
+        /// </summary>
+        /// <param name="str">The filename or extension.</param>
+        /// <returns>The MIME type.</returns>
+        /// <exception cref="ArgumentNullException" />
+        public static string GetMimeType(string str)
+        {
+            return MimeTypeMap.TryGetMimeType(str, out var result) ? result : DefaultMimeType;
+        }
+
+        /// <summary>
+        /// Gets the extension from the provided MINE type.
+        /// </summary>
+        /// <param name="mimeType">Type of the MIME.</param>
+        /// <param name="throwErrorIfNotFound">if set to <c>true</c>, throws error if extension's not found.</param>
+        /// <returns>The extension.</returns>
+        /// <exception cref="ArgumentNullException" />
+        /// <exception cref="ArgumentException" />
+        public static string GetExtension(string mimeType, bool throwErrorIfNotFound = true)
+        {
+            if (mimeType == null)
+            {
+                throw new ArgumentNullException(nameof(mimeType));
+            }
+
+            if (mimeType.StartsWith(Dot))
+            {
+                throw new ArgumentException("Requested mime type is not valid: " + mimeType);
+            }
+
+            if (_mappings.Value.TryGetValue(mimeType, out string extension))
+            {
+                return extension;
+            }
+
+            if (throwErrorIfNotFound)
+            {
+                throw new ArgumentException("Requested mime type is not registered: " + mimeType);
+            }
+
+            return string.Empty;
+        }
+    }
+}

Flyinsono.Demo/MainWindow.axaml.cs

@@ -3,12 +3,54 @@ using System.IO;
 using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Markup.Xaml;
+using JsonRpcLite.InProcess;
+using JsonRpcLite.Rpc;
 using Xilium.CefGlue;
 using Xilium.CefGlue.Avalonia;
 using Xilium.CefGlue.Common.Handlers;
 
 namespace Flyinsono.Demo
 {
+
+    public sealed class JsonRpcHandler<T> : IHostHandler
+    {
+        private readonly JsonRpcInProcessEngine _engine = new();
+        private readonly JsonRpcServer _server = new();
+        private readonly JsonRpcClient _client = new();
+
+        public string Host { get; }
+
+        public JsonRpcHandler(string host, T service)
+        {
+            Host = host;
+            _server.UseEngine(_engine);
+            _client.UseEngine(_engine);
+            _server.RegisterService(service);
+            _server.Start();
+        }
+
+        public HandleResult Handle(string path, byte[] postData = null)
+        {
+            try
+            {
+                var serviceName = path;
+                if (serviceName.StartsWith("/"))
+                {
+                    serviceName = serviceName.Substring(1);
+                }
+                var resultData = _client.ProcessAsync(serviceName, postData).Result;
+                var resultStream = new MemoryStream(resultData);
+                return new HandleResult(resultStream, "application/json");
+            }
+            catch
+            {
+                // ignored
+            }
+
+            return null;
+        }
+    }
+
     public class MainWindow : Window
     {
         private AvaloniaCefBrowser _browser;