public void ProcessRequest(HttpContext context)
{
var request = context.Request;
var response = context.Response;
VirtualFile vf = null;
var filePath = request.FilePath;
// Cross-Origin Resource Sharing (CORS)
if (!HttpHeaderTools.IsOriginHeaderAllowed())
{
AuthenticationHelper.ThrowForbidden(filePath);
}
if (HostingEnvironment.VirtualPathProvider.FileExists(filePath))
{
vf = HostingEnvironment.VirtualPathProvider.GetFile(filePath);
}
if (vf == null)
{
throw new HttpException(404, "File does not exist");
}
response.ClearContent();
// Set content type only if this is not a RepositoryFile, because the
// Open method of RepositoryFile will set the content type itself.
if (!(vf is RepositoryFile))
{
var extension = System.IO.Path.GetExtension(filePath);
context.Response.ContentType = MimeTable.GetMimeType(extension);
// add the necessary header for the css font-face rule
if (MimeTable.IsFontType(extension))
{
HttpHeaderTools.SetAccessControlHeaders();
}
}
// The bytes we write into the output stream will NOT be buffered and will be sent
// to the client immediately. This makes sure that the whole (potentially large)
// file is not loaded into the memory on the server.
response.BufferOutput = false;
using (var stream = vf.Open())
{
response.AppendHeader("Content-Length", stream.Length.ToString());
response.Clear();
// Let ASP.NET handle sending bytes to the client (avoid Flush).
stream.CopyTo(response.OutputStream);
}
}
public void ProcessRequest(HttpContext context)
{
var request = context.Request;
var response = context.Response;
VirtualFile vf = null;
var filePath = request.FilePath;
if (HostingEnvironment.VirtualPathProvider.FileExists(filePath))
{
vf = HostingEnvironment.VirtualPathProvider.GetFile(filePath);
}
if (vf == null)
{
throw new HttpException(404, "File does not exist");
}
response.ClearContent();
//Set content type only if this is not a RepositoryFile, because the
//Open method of RepositoryFile will set the content type itself.
if (!(vf is RepositoryFile))
{
var extension = System.IO.Path.GetExtension(filePath);
context.Response.ContentType = MimeTable.GetMimeType(extension);
//add the necessary header for the css font-face rule
if (MimeTable.IsFontType(extension))
{
HttpContext.Current.Response.AppendHeader("Access-Control-Allow-Origin", HttpContext.Current.Request.Url.GetComponents(UriComponents.SchemeAndServer, UriFormat.SafeUnescaped));
}
}
using (var stream = vf.Open())
{
response.AppendHeader("Content-Length", stream.Length.ToString());
//We need to Flush the headers before
//we start to stream the actual binary.
response.Flush();
var buffer = new byte[Math.Min(stream.Length, RepositoryConfiguration.BinaryChunkSize)];
int readed;
while ((readed = stream.Read(buffer, 0, buffer.Length)) > 0)
{
response.OutputStream.Write(buffer, 0, readed);
response.Flush();
}
}
}
private static void ProcessRequestUsingVirtualFile(HttpContext context, string repositoryPath)
{
byte[] buffer = ReadVirtualFile(repositoryPath);
context.Response.ClearContent();
context.Response.OutputStream.Write(buffer, 0, buffer.Length);
context.Response.ContentType =
MimeTable.GetMimeType(System.IO.Path.GetExtension(repositoryPath));
context.Response.End();
}
public void BinaryData_CreateImageByBinary()
{
var testFileName = "test.jpg";
var expectedContentType = MimeTable.GetMimeType(System.IO.Path.GetExtension(testFileName).ToLower());
var testBinaryData = new BinaryData();
testBinaryData.FileName = testFileName;
var image = Image.CreateByBinary(this.TestRoot as IFolder, testBinaryData);
Assert.AreEqual(testFileName, image.Name);
Assert.AreEqual(testFileName, image.Binary.FileName.ToString());
Assert.AreEqual(expectedContentType, image.Binary.ContentType);
}
private static void ProcessRequestUsingFilesystemCache(HttpContext context, string repositoryPath, string fullyQualyfiedPath)
{
// Check the filesystem cache, create the file if not exists
if (!System.IO.File.Exists(fullyQualyfiedPath))
{
byte[] buffer = ReadVirtualFile(repositoryPath);
string directoryName = Path.GetDirectoryName(fullyQualyfiedPath);
if (!Directory.Exists(directoryName))
{
System.IO.Directory.CreateDirectory(directoryName);
}
using (var cachedFile = System.IO.File.Create(fullyQualyfiedPath))
{
cachedFile.Write(buffer, 0, buffer.Length);
}
}
else
{
var servedFromFileSystem = true;
// check the date
DateTime lastWriteTime = System.IO.File.GetLastWriteTime(fullyQualyfiedPath);
DateTime now = DateTime.UtcNow;
var nodeDescription = NodeHead.Get(repositoryPath);
if (lastWriteTime.AddMinutes(CacheTimeframeInMinutes) < now)
{
// update if needed
CreateLockFile(fullyQualyfiedPath);
int maxTryNum = 20;
IOException lastError = null;
while (--maxTryNum >= 0)
{
try
{
System.IO.File.SetLastWriteTime(fullyQualyfiedPath, now);
break;
}
catch (IOException ioex) //TODO: catch block
{
lastError = ioex;
System.Threading.Thread.Sleep(200);
}
}
if (lastError != null)
{
throw new IOException("Cannot write the file: " + fullyQualyfiedPath, lastError);
}
if (nodeDescription.ModificationDate > lastWriteTime)
{
// refresh file
byte[] buffer = ReadVirtualFile(repositoryPath);
servedFromFileSystem = false;
using (var cachedFile = System.IO.File.Open(fullyQualyfiedPath, FileMode.Truncate, FileAccess.Write))
{
cachedFile.Write(buffer, 0, buffer.Length);
}
}
DeleteLockFile(fullyQualyfiedPath);
}
// only log file download if it was not logged before by the virtual file provider
if (servedFromFileSystem)
{
// let the client code log file downloads
if (nodeDescription != null &&
Providers.Instance.StorageSchema.NodeTypes[nodeDescription.NodeTypeId].IsInstaceOfOrDerivedFrom("File"))
{
ContentRepository.File.Downloaded(nodeDescription.Id);
}
}
}
string extension = System.IO.Path.GetExtension(repositoryPath);
context.Response.ContentType = MimeTable.GetMimeType(extension);
context.Response.TransmitFile(fullyQualyfiedPath);
}
