/// <summary>
/// Processes the request for the content of a bundle.
/// </summary>
/// <param name="args"></param>
private void HandleRequestForBundle(RequestReceivedEventArgs args)
{
List <string> bundlePathsAndFiles;
lock (_SyncLock) _BundleToRequestFileNameMap.TryGetValue(args.File.ToLower(), out bundlePathsAndFiles);
if (bundlePathsAndFiles != null)
{
var bundle = GetUtf8Content(bundlePathsAndFiles);
var content = Encoding.UTF8.GetBytes(bundle);
var preamble = Encoding.UTF8.GetPreamble();
args.Handled = true;
args.Response.EnableCompression(args.Request);
args.Response.StatusCode = HttpStatusCode.OK;
args.Response.MimeType = MimeType.GetForExtension(Path.GetExtension(args.PathAndFile));
args.Response.ContentEncoding = Encoding.UTF8;
args.Classification = MimeType.GetContentClassification(args.Response.MimeType);
args.Response.ContentLength = content.LongLength + preamble.LongLength;
using (var memoryStream = new MemoryStream(preamble)) {
StreamHelper.CopyStream(memoryStream, args.Response.OutputStream, 10);
}
using (var memoryStream = new MemoryStream(content)) {
StreamHelper.CopyStream(memoryStream, args.Response.OutputStream, 4096);
}
}
}
public void MimeType_GetForExtension_Returns_Correct_MimeType_For_Extensions_With_Leading_Full_Stop()
{
var excelWorkSheet = new ExcelWorksheetData(TestContext);
var mimeType = excelWorkSheet.String("MimeType");
var extension = String.Format(".{0}", excelWorkSheet.String("Extension"));
Assert.AreEqual(mimeType, MimeType.GetForExtension(extension), extension);
}
public void MimeType_GetForExtension_Returns_Correct_MimeType_For_Extension()
{
var excelWorkSheet = new ExcelWorksheetData(TestContext);
var mimeType = excelWorkSheet.String("MimeType");
var extension = excelWorkSheet.String("Extension");
Assert.AreEqual(mimeType, MimeType.GetForExtension(extension), extension);
}
public void MimeType_GetForExtension_Is_Case_Insensitive()
{
var worksheet = new ExcelWorksheetData(TestContext);
var mimeType = worksheet.String("MimeType");
var extension = String.Format(".{0}", worksheet.String("Extension"));
Assert.AreEqual(mimeType, MimeType.GetForExtension(extension.ToLower()), extension.ToLower());
Assert.AreEqual(mimeType, MimeType.GetForExtension(extension.ToUpper()), extension.ToUpper());
}
/// <summary>
/// Honours requests for files from the file system. Returns false if no file matched the request.
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
private bool ServeFromFileSystem(IDictionary <string, object> environment)
{
var result = false;
var context = PipelineContext.GetOrCreate(environment);
var request = context.Request;
var response = context.Response;
var relativePath = ConvertRequestPathToRelativeFilePath(request.FlattenedPath);
relativePath = RejectInvalidCharacters(relativePath);
if (!String.IsNullOrEmpty(relativePath))
{
foreach (var siteRoot in _Configuration.GetSiteRootFolders())
{
var fullPath = Path.Combine(siteRoot, relativePath);
if (FileSystemProvider.FileExists(fullPath))
{
var extension = Path.GetExtension(fullPath);
var mimeType = MimeType.GetForExtension(extension) ?? "application/octet-stream";
var content = FileSystemProvider.FileReadAllBytes(fullPath);
if (_Configuration.IsFileUnmodified(siteRoot, request.FlattenedPath, content))
{
content = RaiseTextLoadedFromFile(request, content, mimeType);
SendContent(response, content, mimeType);
}
else
{
if (mimeType != MimeType.Html)
{
response.StatusCode = (int)HttpStatusCode.BadRequest;
}
else
{
content = Encoding.UTF8.GetBytes("<HTML><HEAD><TITLE>No</TITLE></HEAD><BODY>VRS will not serve content that has been tampered with. Install the custom content plugin if you want to alter the site's files.</BODY></HTML>");
SendContent(response, content, mimeType);
}
}
result = true;
break;
}
}
}
return(result);
}
/// <summary>
/// Reads the content of the text file passed across, modifies it and then sends it back to the browser.
/// </summary>
/// <param name="args"></param>
/// <param name="fileName"></param>
/// <param name="extension"></param>
/// <param name="modifyContent"></param>
private void ModifyAndSendContent(RequestReceivedEventArgs args, string fileName, string extension, Action<TextContent> modifyContent)
{
var textContent = LoadTextFileWithBom(fileName);
modifyContent(textContent);
var bytes = textContent.GetBytes();
args.Response.EnableCompression(args.Request);
args.Response.ContentLength = bytes.Length;
args.Response.MimeType = MimeType.GetForExtension(extension);
args.Classification = MimeType.GetContentClassification(args.Response.MimeType);
args.Response.StatusCode = HttpStatusCode.OK;
using(var stream = new MemoryStream(bytes)) {
StreamHelper.CopyStream(stream, args.Response.OutputStream);
}
}
public void FileSystemServer_Infers_Mime_Type_From_File_Extension()
{
foreach (var extension in MimeType.GetKnownExtensions())
{
TestCleanup();
TestInitialise();
AddSiteRootAndFile(@"c:\web\root", $"file.{extension}", extension);
ConfigureRequest($"/file.{extension}");
_Pipeline.BuildAndCallMiddleware(_Server.AppFuncBuilder, _Environment.Environment);
var expectedMimeType = MimeType.GetForExtension(extension);
AssertFileReturned(expectedMimeType, extension);
}
}
/// <summary>
/// See base class docs.
/// </summary>
/// <param name="server"></param>
/// <param name="args"></param>
/// <returns></returns>
protected override bool DoHandleRequest(IWebServer server, RequestReceivedEventArgs args)
{
var requestFile = GetRequestFile(args.PathParts, args.File);
var result = requestFile != null && !String.IsNullOrEmpty(requestFile.FileName) && File.Exists(requestFile.FileName);
if(result) {
var normalisedRequestPath = NormaliseRequestPath(args.PathAndFile);
var extension = Path.GetExtension(requestFile.FileName);
var isProtected = requestFile.Root.IsProtectedContent;
var checksumEntry = isProtected ? requestFile.Root.FindChecksum(normalisedRequestPath, requestPathIsNormalised: true) : null;
result = !isProtected || checksumEntry != null;
if(result) {
var isHtml = ".html".Equals(extension, StringComparison.OrdinalIgnoreCase) || ".htm".Equals(extension, StringComparison.OrdinalIgnoreCase);
if(isProtected && !requestFile.Root.TestChecksum(checksumEntry, requestFile.FileName)) {
Factory.Singleton.Resolve<ILog>().Singleton.WriteLine("Will not serve {0}, it has failed the checksum test", args.PathAndFile);
if(!isHtml) {
args.Response.StatusCode = HttpStatusCode.BadRequest;
} else {
Responder.SendText(args.Request, args.Response, "<HTML><HEAD><TITLE>No</TITLE></HEAD><BODY>VRS will not serve content that has been tampered with. Install the custom content plugin if you want to alter the site's files.</BODY></HTML>", Encoding.UTF8, MimeType.Html);
args.Classification = ContentClassification.Html;
}
} else {
if(isHtml) {
ModifyAndSendContent(args, requestFile.FileName, extension, r => {
var textContentArgs = new TextContentEventArgs(args.Request, args.PathAndFile, r.Content, r.Encoding);
_WebSite.OnHtmlLoadedFromFile(textContentArgs);
r.Content = textContentArgs.Content;
_WebSite.InjectHtmlContent(args.PathAndFile, r);
_WebSite.BundleHtml(args.PathAndFile, r);
});
} else if(".js".Equals(extension, StringComparison.OrdinalIgnoreCase)) {
ModifyAndSendContent(args, requestFile.FileName, extension, r => {
_WebSite.InjectIntoJavaScript(args.PathAndFile, r);
_WebSite.MinifyJavaScript(r);
});
} else if(".css".Equals(extension, StringComparison.OrdinalIgnoreCase)) {
ModifyAndSendContent(args, requestFile.FileName, extension, r => {
_WebSite.MinifyCss(r);
});
} else {
args.Response.MimeType = MimeType.GetForExtension(extension);
var enableCompression = true;
if(args.Response.MimeType == MimeType.IconImage) enableCompression = false;
else if(args.Response.MimeType.StartsWith("image/")) enableCompression = false;
if(enableCompression) args.Response.EnableCompression(args.Request);
args.Response.ContentLength = new FileInfo(requestFile.FileName).Length;
args.Classification = MimeType.GetContentClassification(args.Response.MimeType);
args.Response.StatusCode = HttpStatusCode.OK;
using(var fileStream = new FileStream(requestFile.FileName, FileMode.Open, FileAccess.Read)) {
StreamHelper.CopyStream(fileStream, args.Response.OutputStream, 4096);
}
}
}
}
}
return result;
}
public void MimeType_GetForExtension_Returns_Null_When_Passed_Empty_String()
{
Assert.AreEqual(null, MimeType.GetForExtension(""));
}
public void MimeType_GetForExtension_Returns_Null_When_Passed_Null()
{
Assert.AreEqual(null, MimeType.GetForExtension(null));
}
public void MimeType_GetForExtension_Returns_Octet_Mime_Type_For_Unknown_Extensions()
{
Assert.AreEqual("application/octet-stream", MimeType.GetForExtension("Well, this is just gibberish!"));
}
