public void Write(string s, int offset, int count)
{
bool buffering = response.BufferOutput;
if (buffering)
{
// It does not matter whether we're in ApplyFilter or not
AppendBuffer(s, offset, count);
}
else if (filter == null || filtering)
{
response.WriteHeaders(false);
HttpWorkerRequest wr = response.WorkerRequest;
// Direct write because not buffering
wr.SendResponseFromMemory(s, offset, count, response.ContentEncoding);
wr.FlushResponse(false);
}
else
{
// Write to the filter, which will call us back, and then Flush
filtering = true;
try {
byte [] bytesToWrite = response.ContentEncoding.GetBytes(s.ToCharArray(), offset, count);
filter.Write(bytesToWrite, 0, bytesToWrite.Length);
}
finally {
filtering = false;
}
Flush(response.WorkerRequest, false);
}
}
//
// This is called from the QueueManager if a request
// can not be processed (load, no resources, or
// appdomain unload).
//
static internal void FinishUnavailable(HttpWorkerRequest wr)
{
wr.SendStatus(503, "Service unavailable");
wr.SendUnknownResponseHeader("Connection", "close");
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader("Content-Type", "text/html; charset=" + enc.WebName);
byte [] contentBytes = enc.GetBytes(content503);
wr.SendUnknownResponseHeader("Content-Length", contentBytes.Length.ToString());
wr.SendResponseFromMemory(contentBytes, contentBytes.Length);
wr.FlushResponse(true);
wr.CloseConnection();
HttpApplication.requests_total_counter.Increment();
}
internal void Flush(HttpWorkerRequest wr, bool final_flush)
{
if (!dirty && !final_flush)
{
return;
}
for (Bucket b = first_bucket; b != null; b = b.Next)
{
b.Send(wr);
}
wr.FlushResponse(final_flush);
Clear();
}
static void Redirect (HttpWorkerRequest wr, string location)
{
string host = wr.GetKnownRequestHeader (HttpWorkerRequest.HeaderHost);
wr.SendStatus (301, "Moved Permanently");
wr.SendUnknownResponseHeader ("Connection", "close");
wr.SendUnknownResponseHeader ("Date", DateTime.Now.ToUniversalTime ().ToString ("r"));
wr.SendUnknownResponseHeader ("Location", String.Format ("{0}://{1}{2}", wr.GetProtocol(), host, location));
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader ("Content-Type", "text/html; charset=" + enc.WebName);
string content = String.Format (CONTENT301, host, location);
byte [] contentBytes = enc.GetBytes (content);
wr.SendUnknownResponseHeader ("Content-Length", contentBytes.Length.ToString ());
wr.SendResponseFromMemory (contentBytes, contentBytes.Length);
wr.FlushResponse (true);
wr.CloseConnection ();
}
static void FinishWithException(HttpWorkerRequest wr, HttpException e)
{
int code = e.GetHttpCode();
wr.SendStatus(code, HttpWorkerRequest.GetStatusDescription(code));
wr.SendUnknownResponseHeader("Connection", "close");
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader("Content-Type", "text/html; charset=" + enc.WebName);
string msg = e.GetHtmlErrorMessage();
byte [] contentBytes = enc.GetBytes(msg);
wr.SendUnknownResponseHeader("Content-Length", contentBytes.Length.ToString());
wr.SendResponseFromMemory(contentBytes, contentBytes.Length);
wr.FlushResponse(true);
wr.CloseConnection();
HttpApplication.requests_total_counter.Increment();
}
public override void Write(byte [] buffer, int offset, int count)
{
bool buffering = response.BufferOutput;
if (buffering)
{
// It does not matter whether we're in ApplyFilter or not
AppendBuffer(buffer, offset, count);
}
else if (filter == null || filtering)
{
response.WriteHeaders(false);
HttpWorkerRequest wr = response.WorkerRequest;
// Direct write because not buffering
if (offset == 0)
{
wr.SendResponseFromMemory(buffer, count);
}
else
{
UnsafeWrite(wr, buffer, offset, count);
}
wr.FlushResponse(false);
}
else
{
// Write to the filter, which will call us back, and then Flush
filtering = true;
try {
filter.Write(buffer, offset, count);
}
finally {
filtering = false;
}
Flush(response.WorkerRequest, false);
}
}
//
// This is called from the QueueManager if a request
// can not be processed (load, no resources, or
// appdomain unload).
//
static internal void FinishUnavailable (HttpWorkerRequest wr)
{
wr.SendStatus (503, "Service unavailable");
wr.SendUnknownResponseHeader ("Connection", "close");
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader ("Content-Type", "text/html; charset=" + enc.WebName);
byte [] contentBytes = enc.GetBytes (content503);
wr.SendUnknownResponseHeader ("Content-Length", contentBytes.Length.ToString ());
wr.SendResponseFromMemory (contentBytes, contentBytes.Length);
wr.FlushResponse (true);
wr.CloseConnection ();
HttpApplication.requests_total_counter.Increment ();
}
static void FinishWithException (HttpWorkerRequest wr, HttpException e)
{
int code = e.GetHttpCode ();
wr.SendStatus (code, HttpWorkerRequest.GetStatusDescription (code));
wr.SendUnknownResponseHeader ("Connection", "close");
Encoding enc = Encoding.ASCII;
wr.SendUnknownResponseHeader ("Content-Type", "text/html; charset=" + enc.WebName);
string msg = e.GetHtmlErrorMessage ();
byte [] contentBytes = enc.GetBytes (msg);
wr.SendUnknownResponseHeader ("Content-Length", contentBytes.Length.ToString ());
wr.SendResponseFromMemory (contentBytes, contentBytes.Length);
wr.FlushResponse (true);
wr.CloseConnection ();
HttpApplication.requests_total_counter.Increment ();
}
internal void Flush (HttpWorkerRequest wr, bool final_flush)
{
if (total == 0 && !final_flush)
return;
if (response.use_chunked)
SendChunkSize (total, false);
for (Bucket b = first_bucket; b != null; b = b.Next) {
b.Send (wr);
}
if (response.use_chunked) {
SendChunkSize (-1, false);
if (final_flush)
SendChunkSize (0, true);
}
wr.FlushResponse (final_flush);
Clear ();
}
private void ProcessRequestInternal(HttpWorkerRequest wr)
{
Interlocked.Increment(ref this._activeRequestCount);
if (this._disposingHttpRuntime)
{
try
{
wr.SendStatus(503, "Server Too Busy");
wr.SendKnownResponseHeader(12, "text/html; charset=utf-8");
byte[] bytes = Encoding.ASCII.GetBytes("<html><body>Server Too Busy</body></html>");
wr.SendResponseFromMemory(bytes, bytes.Length);
wr.FlushResponse(true);
wr.EndOfRequest();
}
finally
{
Interlocked.Decrement(ref this._activeRequestCount);
}
}
else
{
HttpContext context;
try
{
context = new HttpContext(wr, false);
}
catch
{
try
{
wr.SendStatus(400, "Bad Request");
wr.SendKnownResponseHeader(12, "text/html; charset=utf-8");
byte[] bytes = Encoding.ASCII.GetBytes("<html><body>Bad Request</body></html>");
wr.SendResponseFromMemory(bytes, bytes.Length);
wr.FlushResponse(true);
wr.EndOfRequest();
return;
}
finally
{
Interlocked.Decrement(ref this._activeRequestCount);
}
}
wr.SetEndOfSendNotification(this._asyncEndOfSendCallback, (object) context);
HostingEnvironment.IncrementBusyCount();
try
{
try
{
this.EnsureFirstRequestInit(context);
}
catch
{
if (!context.Request.IsDebuggingRequest)
throw;
}
context.Response.InitResponseWriter();
IHttpHandler applicationInstance = HttpApplicationFactory.GetApplicationInstance(context);
if (applicationInstance == null)
throw new HttpException(System.Web.SR.GetString("Unable_create_app_object"));
if (EtwTrace.IsTraceEnabled(5, 1))
EtwTrace.Trace(EtwTraceType.ETW_TYPE_START_HANDLER, context.WorkerRequest, applicationInstance.GetType().FullName, "Start");
if (applicationInstance is IHttpAsyncHandler)
{
IHttpAsyncHandler httpAsyncHandler = (IHttpAsyncHandler) applicationInstance;
context.AsyncAppHandler = httpAsyncHandler;
httpAsyncHandler.BeginProcessRequest(context, this._handlerCompletionCallback, (object) context);
}
else
{
applicationInstance.ProcessRequest(context);
this.FinishRequest(context.WorkerRequest, context, (Exception) null);
}
}
catch (Exception ex)
{
context.Response.InitResponseWriter();
this.FinishRequest(wr, context, ex);
}
}
}
internal void Flush (HttpWorkerRequest wr, bool final_flush)
{
if (!dirty && !final_flush)
return;
for (Bucket b = first_bucket; b != null; b = b.Next) {
b.Send (wr);
}
wr.FlushResponse (final_flush);
Clear ();
}