internal void Abort(HTTPConnectionStates newState)
{
State = newState;
if (Stream != null)
{
Stream.Dispose();
}
}
public ConnectionEventInfo(ConnectionBase sourceConn, HostProtocolSupport protocolSupport)
{
this.Source = sourceConn;
this.Event = ConnectionEvents.ProtocolSupport;
this.State = HTTPConnectionStates.Initial;
this.ProtocolSupport = protocolSupport;
}
public ConnectionEventInfo(ConnectionBase sourceConn, ConnectionEvents @event)
{
this.Source = sourceConn;
this.Event = @event;
this.State = HTTPConnectionStates.Initial;
this.ProtocolSupport = HostProtocolSupport.Unknown;
}
internal override void Abort(HTTPConnectionStates newState)
{
base.State = newState;
if (base.State == HTTPConnectionStates.TimedOut)
{
base.TimedOutStart = DateTime.UtcNow;
}
throw new NotImplementedException();
}
public ConnectionEventInfo(ConnectionBase sourceConn, HTTPConnectionStates newState)
{
this.Source = sourceConn;
this.Event = ConnectionEvents.StateChange;
this.State = newState;
this.ProtocolSupport = HostProtocolSupport.Unknown;
}
internal override void Abort(HTTPConnectionStates newState)
{
State = newState;
switch (State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
throw new NotImplementedException();
}
internal override void Abort(HTTPConnectionStates newState)
{
State = newState;
switch (State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
XHR_Abort(this.NativeId);
}
internal override void Abort(HTTPConnectionStates newState)
{
State = newState;
switch (State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
XHR_Abort(this.NativeId);
}
public ConnectionEventInfo(ConnectionBase sourceConn, HTTPRequest request)
{
this.Source = sourceConn;
this.Event = ConnectionEvents.StateChange;
this.State = HTTPConnectionStates.ClosedResendRequest;
this.ProtocolSupport = HostProtocolSupport.Unknown;
this.Request = request;
}
internal override void Abort(HTTPConnectionStates newState)
{
base.State = newState;
if (base.State == HTTPConnectionStates.TimedOut)
{
base.TimedOutStart = DateTime.UtcNow;
}
if (this.Stream != null)
{
this.Stream.Dispose();
}
}
internal HostConnection RemoveConnection(ConnectionBase conn, HTTPConnectionStates setState)
{
conn.State = setState;
conn.Dispose();
bool found = this.Connections.Remove(conn);
if (!found)
HTTPManager.Logger.Warning(typeof(HostConnection).Name, string.Format("RemoveConnection - Couldn't find connection! key: {0}", conn.ServerAddress), this.Context, conn.Context);
return this;
}
internal void Abort(HTTPConnectionStates newState)
{
this.State = newState;
HTTPConnectionStates state = this.State;
if (state == HTTPConnectionStates.TimedOut)
{
this.TimedOutStart = DateTime.UtcNow;
}
if (this.Stream != null)
{
this.Stream.Dispose();
}
}
internal HostConnection RemoveConnection(ConnectionBase conn, HTTPConnectionStates setState)
{
conn.State = setState;
conn.Dispose();
bool found = this.Connections.Remove(conn);
if (!found)
{
HTTPManager.Logger.Warning(typeof(HostConnection).Name, string.Format("'{0}': RemoveConnection - Couldn't find connection! key: {1}", this.VariantId, conn.ServerAddress));
}
return(this);
}
internal void Abort(HTTPConnectionStates newState)
{
State = newState;
switch (State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
if (Stream != null)
{
Stream.Dispose();
}
}
internal HostConnection RemoveConnection(ConnectionBase conn, HTTPConnectionStates setState)
{
conn.State = setState;
conn.Dispose();
bool found = this.Connections.Remove(conn);
if (!found)
{
HTTPManager.Logger.Warning(typeof(HostConnection).Name, "RemoveConnection - Couldn't find connection! key: " + conn.ServerAddress);
}
return(this);
}
public void RunHandler()
{
HTTPManager.Logger.Information("HTTP1Handler", string.Format("[{0}] started processing request '{1}'", this, this.conn.CurrentRequest.CurrentUri.ToString()));
HTTPConnectionStates proposedConnectionState = HTTPConnectionStates.Processing;
bool resendRequest = false;
try
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
// Try load the full response from an already saved cache entity.
// If the response could be loaded completely, we can skip connecting (if not already) and a full round-trip time to the server.
if (HTTPCacheService.IsCachedEntityExpiresInTheFuture(this.conn.CurrentRequest) && ConnectionHelper.TryLoadAllFromCache(this.ToString(), this.conn.CurrentRequest))
{
HTTPManager.Logger.Information("HTTP1Handler", string.Format("[{0}] Request could be fully loaded from cache! '{1}'", this, this.conn.CurrentRequest.CurrentUri.ToString()));
return;
}
#endif
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
// Setup cache control headers before we send out the request
if (!this.conn.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(this.conn.CurrentRequest);
}
#endif
// Write the request to the stream
this.conn.CurrentRequest.SendOutTo(this.conn.connector.Stream);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
// Receive response from the server
bool received = Receive(this.conn.CurrentRequest);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
if (!received && this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Retries++;
resendRequest = true;
return;
}
ConnectionHelper.HandleResponse(this.conn.ToString(), this.conn.CurrentRequest, out resendRequest, out proposedConnectionState, ref this._keepAlive);
}
catch (TimeoutException e)
{
this.conn.CurrentRequest.Response = null;
// We will try again only once
if (this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
this.conn.CurrentRequest.Retries++;
resendRequest = true;
}
else
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
catch (Exception e)
{
if (this.ShutdownType == ShutdownTypes.Immediate)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
if (this.conn.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.conn.CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
this.conn.CurrentRequest.Response = null;
if (!this.conn.CurrentRequest.IsCancellationRequested)
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
finally
{
// Exit ASAP
if (this.ShutdownType != ShutdownTypes.Immediate)
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
// we don't know what stage the request is cancelled, we can't safely reuse the tcp channel.
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Response = null;
this.conn.CurrentRequest.State = this.conn.CurrentRequest.IsTimedOut ? HTTPRequestStates.TimedOut : HTTPRequestStates.Aborted;
}
else if (resendRequest)
{
RequestEventHelper.EnqueueRequestEvent(new RequestEventInfo(this.conn.CurrentRequest, RequestEvents.Resend));
}
else if (this.conn.CurrentRequest.Response != null && this.conn.CurrentRequest.Response.IsUpgraded)
{
proposedConnectionState = HTTPConnectionStates.WaitForProtocolShutdown;
}
else if (this.conn.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (this.conn.CurrentRequest.Response != null)
{
this.conn.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
this.conn.CurrentRequest.Exception = new Exception(string.Format("[{0}] Remote server closed the connection before sending response header! Previous request state: {1}. Connection state: {2}",
this.ToString(),
this.conn.CurrentRequest.State.ToString(),
this.conn.State.ToString()));
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
proposedConnectionState = HTTPConnectionStates.Closed;
}
}
this.conn.CurrentRequest = null;
if (proposedConnectionState == HTTPConnectionStates.Processing)
{
proposedConnectionState = HTTPConnectionStates.Recycle;
}
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this.conn, proposedConnectionState));
}
}
}
public void RunHandler()
{
HTTPManager.Logger.Information("HTTP1Handler", string.Format("[{0}] started processing request '{1}'", this, this.conn.CurrentRequest.CurrentUri.ToString()), this.Context, this.conn.CurrentRequest.Context);
System.Threading.Thread.CurrentThread.Name = "BestHTTP.HTTP1 R&W";
HTTPConnectionStates proposedConnectionState = HTTPConnectionStates.Processing;
bool resendRequest = false;
try
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
// Setup cache control headers before we send out the request
if (!this.conn.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(this.conn.CurrentRequest);
}
#endif
// Write the request to the stream
this.conn.CurrentRequest.QueuedAt = DateTime.MinValue;
this.conn.CurrentRequest.ProcessingStarted = DateTime.UtcNow;
this.conn.CurrentRequest.SendOutTo(this.conn.connector.Stream);
this.conn.CurrentRequest.Timing.Add(TimingEventNames.Request_Sent);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
this.conn.CurrentRequest.OnCancellationRequested += OnCancellationRequested;
// Receive response from the server
bool received = Receive(this.conn.CurrentRequest);
this.conn.CurrentRequest.Timing.Add(TimingEventNames.Response_Received);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
if (!received && this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Retries++;
resendRequest = true;
return;
}
ConnectionHelper.HandleResponse(this.conn.ToString(), this.conn.CurrentRequest, out resendRequest, out proposedConnectionState, ref this._keepAlive, this.conn.Context, this.conn.CurrentRequest.Context);
}
catch (TimeoutException e)
{
this.conn.CurrentRequest.Response = null;
// Do nothing here if Abort() got called on the request, its State is already set.
if (!this.conn.CurrentRequest.IsTimedOut)
{
// We will try again only once
if (this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
this.conn.CurrentRequest.Retries++;
resendRequest = true;
}
else
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
}
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
catch (Exception e)
{
if (this.ShutdownType == ShutdownTypes.Immediate)
{
return;
}
string exceptionMessage = string.Empty;
if (e == null)
{
exceptionMessage = "null";
}
else
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
Exception exception = e;
int counter = 1;
while (exception != null)
{
sb.AppendFormat("{0}: {1} {2}", counter++.ToString(), exception.Message, exception.StackTrace);
exception = exception.InnerException;
if (exception != null)
{
sb.AppendLine();
}
}
exceptionMessage = sb.ToString();
}
HTTPManager.Logger.Verbose("HTTP1Handler", exceptionMessage, this.Context, this.conn.CurrentRequest.Context);
#if !BESTHTTP_DISABLE_CACHING
if (this.conn.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.conn.CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
this.conn.CurrentRequest.Response = null;
// Do nothing here if Abort() got called on the request, its State is already set.
if (!this.conn.CurrentRequest.IsCancellationRequested)
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
finally
{
this.conn.CurrentRequest.OnCancellationRequested -= OnCancellationRequested;
// Exit ASAP
if (this.ShutdownType != ShutdownTypes.Immediate)
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
// we don't know what stage the request is canceled, we can't safely reuse the tcp channel.
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Response = null;
// The request's State already set, or going to be set soon in RequestEvents.cs.
//this.conn.CurrentRequest.State = this.conn.CurrentRequest.IsTimedOut ? HTTPRequestStates.TimedOut : HTTPRequestStates.Aborted;
}
else if (resendRequest)
{
// Here introducing a ClosedResendRequest connection state, where we have to process the connection's state change to Closed
// than we have to resend the request.
// If we would send the Resend request here, than a few lines below the Closed connection state change,
// request events are processed before connection events (just switching the EnqueueRequestEvent and EnqueueConnectionEvent wouldn't work
// see order of ProcessQueues in HTTPManager.OnUpdate!) and it would pick this very same closing/closed connection!
if (proposedConnectionState == HTTPConnectionStates.Closed)
{
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this.conn, this.conn.CurrentRequest));
}
else
{
RequestEventHelper.EnqueueRequestEvent(new RequestEventInfo(this.conn.CurrentRequest, RequestEvents.Resend));
}
}
else if (this.conn.CurrentRequest.Response != null && this.conn.CurrentRequest.Response.IsUpgraded)
{
proposedConnectionState = HTTPConnectionStates.WaitForProtocolShutdown;
}
else if (this.conn.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (this.conn.CurrentRequest.Response != null)
{
this.conn.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
this.conn.CurrentRequest.Exception = new Exception(string.Format("[{0}] Remote server closed the connection before sending response header! Previous request state: {1}. Connection state: {2}",
this.ToString(),
this.conn.CurrentRequest.State.ToString(),
this.conn.State.ToString()));
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
proposedConnectionState = HTTPConnectionStates.Closed;
}
}
this.conn.CurrentRequest = null;
if (proposedConnectionState == HTTPConnectionStates.Processing)
{
proposedConnectionState = HTTPConnectionStates.Recycle;
}
if (proposedConnectionState != HTTPConnectionStates.ClosedResendRequest)
{
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this.conn, proposedConnectionState));
}
}
}
}
protected override void ThreadFunc(object param)
{
try
{
using (FileStream stream = new FileStream(base.CurrentRequest.CurrentUri.LocalPath, FileMode.Open, FileAccess.Read))
{
Stream[] streams = new Stream[] { new MemoryStream(), stream };
using (StreamList list = new StreamList(streams))
{
list.Write("HTTP/1.1 200 Ok\r\n");
list.Write("Content-Type: application/octet-stream\r\n");
list.Write("Content-Length: " + stream.Length.ToString() + "\r\n");
list.Write("\r\n");
list.Seek(0L, SeekOrigin.Begin);
base.CurrentRequest.Response = new HTTPResponse(base.CurrentRequest, list, base.CurrentRequest.UseStreaming, false);
if (!base.CurrentRequest.Response.Receive(-1, true))
{
base.CurrentRequest.Response = null;
}
}
}
}
catch (Exception exception)
{
if (base.CurrentRequest != null)
{
base.CurrentRequest.Response = null;
HTTPConnectionStates state = base.State;
if (state != HTTPConnectionStates.AbortRequested)
{
if (state == HTTPConnectionStates.TimedOut)
{
goto Label_0139;
}
goto Label_014A;
}
base.CurrentRequest.State = HTTPRequestStates.Aborted;
}
return;
Label_0139:
base.CurrentRequest.State = HTTPRequestStates.TimedOut;
return;
Label_014A:
base.CurrentRequest.Exception = exception;
base.CurrentRequest.State = HTTPRequestStates.Error;
}
finally
{
base.State = HTTPConnectionStates.Closed;
if (base.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (base.CurrentRequest.Response != null)
{
base.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
base.CurrentRequest.State = HTTPRequestStates.Error;
}
}
}
}
private void ThreadFunc(object param)
{
bool flag = false;
bool flag2 = false;
HTTPConnection.RetryCauses retryCauses = HTTPConnection.RetryCauses.None;
try
{
if (!this.HasProxy && this.CurrentRequest.HasProxy)
{
this.Proxy = this.CurrentRequest.Proxy;
}
if (!this.TryLoadAllFromCache())
{
if (this.Client != null && !this.Client.IsConnected())
{
this.Close();
}
while (true)
{
if (retryCauses == HTTPConnection.RetryCauses.Reconnect)
{
this.Close();
Thread.Sleep(100);
}
this.LastProcessedUri = this.CurrentRequest.CurrentUri;
retryCauses = HTTPConnection.RetryCauses.None;
this.Connect();
if (this.State == HTTPConnectionStates.AbortRequested)
{
break;
}
if (!this.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(this.CurrentRequest);
}
bool flag3 = this.CurrentRequest.SendOutTo(this.Stream);
if (!flag3)
{
this.Close();
if (this.State == HTTPConnectionStates.TimedOut)
{
goto Block_13;
}
if (!flag)
{
flag = true;
retryCauses = HTTPConnection.RetryCauses.Reconnect;
}
}
if (flag3)
{
bool flag4 = this.Receive();
if (this.State == HTTPConnectionStates.TimedOut)
{
goto Block_16;
}
if (!flag4 && !flag)
{
flag = true;
retryCauses = HTTPConnection.RetryCauses.Reconnect;
}
if (this.CurrentRequest.Response != null)
{
int statusCode = this.CurrentRequest.Response.StatusCode;
switch (statusCode)
{
case 301:
case 302:
case 307:
case 308:
{
if (this.CurrentRequest.RedirectCount >= this.CurrentRequest.MaxRedirects)
{
goto IL_3F7;
}
this.CurrentRequest.RedirectCount++;
string firstHeaderValue = this.CurrentRequest.Response.GetFirstHeaderValue("location");
if (string.IsNullOrEmpty(firstHeaderValue))
{
goto IL_3C9;
}
Uri redirectUri = this.GetRedirectUri(firstHeaderValue);
if (!this.CurrentRequest.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", "OnBeforeRedirection returned False");
goto IL_3F7;
}
this.CurrentRequest.RemoveHeader("Host");
this.CurrentRequest.SetHeader("Referer", this.CurrentRequest.CurrentUri.ToString());
this.CurrentRequest.RedirectUri = redirectUri;
this.CurrentRequest.Response = null;
bool flag5 = true;
this.CurrentRequest.IsRedirected = flag5;
flag2 = flag5;
goto IL_3F7;
}
case 303:
case 304:
case 305:
case 306:
IL_186:
if (statusCode == 401)
{
string firstHeaderValue2 = this.CurrentRequest.Response.GetFirstHeaderValue("www-authenticate");
if (!string.IsNullOrEmpty(firstHeaderValue2))
{
Digest orCreate = DigestStore.GetOrCreate(this.CurrentRequest.CurrentUri);
orCreate.ParseChallange(firstHeaderValue2);
if (this.CurrentRequest.Credentials != null && orCreate.IsUriProtected(this.CurrentRequest.CurrentUri) && (!this.CurrentRequest.HasHeader("Authorization") || orCreate.Stale))
{
retryCauses = HTTPConnection.RetryCauses.Authenticate;
}
}
goto IL_3F7;
}
if (statusCode != 407)
{
goto IL_3F7;
}
if (this.CurrentRequest.HasProxy)
{
string firstHeaderValue3 = this.CurrentRequest.Response.GetFirstHeaderValue("proxy-authenticate");
if (!string.IsNullOrEmpty(firstHeaderValue3))
{
Digest orCreate2 = DigestStore.GetOrCreate(this.CurrentRequest.Proxy.Address);
orCreate2.ParseChallange(firstHeaderValue3);
if (this.CurrentRequest.Proxy.Credentials != null && orCreate2.IsUriProtected(this.CurrentRequest.Proxy.Address) && (!this.CurrentRequest.HasHeader("Proxy-Authorization") || orCreate2.Stale))
{
retryCauses = HTTPConnection.RetryCauses.ProxyAuthenticate;
}
}
}
goto IL_3F7;
}
goto IL_186;
IL_3F7:
if (this.CurrentRequest.IsCookiesEnabled)
{
CookieJar.Set(this.CurrentRequest.Response);
}
this.TryStoreInCache();
if (this.CurrentRequest.Response == null || this.CurrentRequest.Response.HasHeaderWithValue("connection", "close") || this.CurrentRequest.UseAlternateSSL)
{
this.Close();
}
}
}
if (retryCauses == HTTPConnection.RetryCauses.None)
{
goto Block_37;
}
}
throw new Exception("AbortRequested");
Block_13:
throw new Exception("AbortRequested");
Block_16:
throw new Exception("AbortRequested");
IL_3C9:
throw new MissingFieldException(string.Format("Got redirect status({0}) without 'location' header!", this.CurrentRequest.Response.StatusCode.ToString()));
Block_37 :;
}
}
catch (TimeoutException exception)
{
this.CurrentRequest.Response = null;
this.CurrentRequest.Exception = exception;
this.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
this.Close();
}
catch (Exception exception2)
{
if (this.CurrentRequest != null)
{
if (this.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.CurrentRequest.CurrentUri, true);
}
this.CurrentRequest.Response = null;
HTTPConnectionStates state = this.State;
if (state != HTTPConnectionStates.AbortRequested)
{
if (state != HTTPConnectionStates.TimedOut)
{
this.CurrentRequest.Exception = exception2;
this.CurrentRequest.State = HTTPRequestStates.Error;
}
else
{
this.CurrentRequest.State = HTTPRequestStates.TimedOut;
}
}
else
{
this.CurrentRequest.State = HTTPRequestStates.Aborted;
}
}
this.Close();
}
finally
{
if (this.CurrentRequest != null)
{
object locker = HTTPManager.Locker;
lock (locker)
{
if (this.CurrentRequest != null && this.CurrentRequest.Response != null && this.CurrentRequest.Response.IsUpgraded)
{
this.State = HTTPConnectionStates.Upgraded;
}
else
{
this.State = ((!flag2) ? ((this.Client != null) ? HTTPConnectionStates.WaitForRecycle : HTTPConnectionStates.Closed) : HTTPConnectionStates.Redirected);
}
if (this.CurrentRequest.State == HTTPRequestStates.Processing && (this.State == HTTPConnectionStates.Closed || this.State == HTTPConnectionStates.WaitForRecycle))
{
this.CurrentRequest.State = HTTPRequestStates.Finished;
}
if (this.CurrentRequest.State == HTTPRequestStates.ConnectionTimedOut)
{
this.State = HTTPConnectionStates.Closed;
}
this.LastProcessTime = DateTime.UtcNow;
}
HTTPCacheService.SaveLibrary();
CookieJar.Persist();
}
}
}
public void RunHandler()
{
HTTPManager.Logger.Information("HTTP1Handler", string.Format("[{0}] started processing request '{1}'", this, this.conn.CurrentRequest.CurrentUri.ToString()), this.Context, this.conn.CurrentRequest.Context);
HTTPConnectionStates proposedConnectionState = HTTPConnectionStates.Processing;
bool resendRequest = false;
try
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
// Setup cache control headers before we send out the request
if (!this.conn.CurrentRequest.DisableCache)
{
HTTPCacheService.SetHeaders(this.conn.CurrentRequest);
}
#endif
// Write the request to the stream
this.conn.CurrentRequest.SendOutTo(this.conn.connector.Stream);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
this.conn.CurrentRequest.OnCancellationRequested += OnCancellationRequested;
// Receive response from the server
bool received = Receive(this.conn.CurrentRequest);
if (this.conn.CurrentRequest.IsCancellationRequested)
{
return;
}
if (!received && this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Retries++;
resendRequest = true;
return;
}
ConnectionHelper.HandleResponse(this.conn.ToString(), this.conn.CurrentRequest, out resendRequest, out proposedConnectionState, ref this._keepAlive, this.conn.Context, this.conn.CurrentRequest.Context);
}
catch (TimeoutException e)
{
this.conn.CurrentRequest.Response = null;
// We will try again only once
if (this.conn.CurrentRequest.Retries < this.conn.CurrentRequest.MaxRetries)
{
this.conn.CurrentRequest.Retries++;
resendRequest = true;
}
else
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.ConnectionTimedOut;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
catch (Exception e)
{
if (this.ShutdownType == ShutdownTypes.Immediate)
{
return;
}
string exceptionMessage = string.Empty;
if (e == null)
{
exceptionMessage = "null";
}
else
{
System.Text.StringBuilder sb = new System.Text.StringBuilder();
Exception exception = e;
int counter = 1;
while (exception != null)
{
sb.AppendFormat("{0}: {1} {2}", counter++.ToString(), exception.Message, exception.StackTrace);
exception = exception.InnerException;
if (exception != null)
{
sb.AppendLine();
}
}
exceptionMessage = sb.ToString();
}
HTTPManager.Logger.Verbose("HTTP1Handler", exceptionMessage, this.Context, this.conn.CurrentRequest.Context);
#if !BESTHTTP_DISABLE_CACHING
if (this.conn.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.conn.CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
this.conn.CurrentRequest.Response = null;
if (!this.conn.CurrentRequest.IsCancellationRequested)
{
this.conn.CurrentRequest.Exception = e;
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
finally
{
this.conn.CurrentRequest.OnCancellationRequested -= OnCancellationRequested;
// Exit ASAP
if (this.ShutdownType != ShutdownTypes.Immediate)
{
if (this.conn.CurrentRequest.IsCancellationRequested)
{
// we don't know what stage the request is canceled, we can't safely reuse the tcp channel.
proposedConnectionState = HTTPConnectionStates.Closed;
this.conn.CurrentRequest.Response = null;
this.conn.CurrentRequest.State = this.conn.CurrentRequest.IsTimedOut ? HTTPRequestStates.TimedOut : HTTPRequestStates.Aborted;
}
else if (resendRequest)
{
RequestEventHelper.EnqueueRequestEvent(new RequestEventInfo(this.conn.CurrentRequest, RequestEvents.Resend));
}
else if (this.conn.CurrentRequest.Response != null && this.conn.CurrentRequest.Response.IsUpgraded)
{
proposedConnectionState = HTTPConnectionStates.WaitForProtocolShutdown;
}
else if (this.conn.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (this.conn.CurrentRequest.Response != null)
{
this.conn.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
this.conn.CurrentRequest.Exception = new Exception(string.Format("[{0}] Remote server closed the connection before sending response header! Previous request state: {1}. Connection state: {2}",
this.ToString(),
this.conn.CurrentRequest.State.ToString(),
this.conn.State.ToString()));
this.conn.CurrentRequest.State = HTTPRequestStates.Error;
proposedConnectionState = HTTPConnectionStates.Closed;
}
}
this.conn.CurrentRequest = null;
if (proposedConnectionState == HTTPConnectionStates.Processing)
{
proposedConnectionState = HTTPConnectionStates.Recycle;
}
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this.conn, proposedConnectionState));
}
}
}
internal abstract void Abort(HTTPConnectionStates hTTPConnectionStates);
internal abstract void Abort(HTTPConnectionStates hTTPConnectionStates);
public static void HandleResponse(string context, HTTPRequest request, out bool resendRequest, out HTTPConnectionStates proposedConnectionState, ref KeepAliveHeader keepAlive)
{
resendRequest = false;
proposedConnectionState = HTTPConnectionStates.Processing;
if (request.Response != null)
{
#if !BESTHTTP_DISABLE_COOKIES
// Try to store cookies before we do anything else, as we may remove the response deleting the cookies as well.
if (request.IsCookiesEnabled && CookieJar.Set(request.Response))
{
PluginEventHelper.EnqueuePluginEvent(new PluginEventInfo(PluginEvents.SaveCookieLibrary));
}
#endif
switch (request.Response.StatusCode)
{
// Not authorized
// http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.4.2
case 401:
{
string authHeader = DigestStore.FindBest(request.Response.GetHeaderValues("www-authenticate"));
if (!string.IsNullOrEmpty(authHeader))
{
var digest = DigestStore.GetOrCreate(request.CurrentUri);
digest.ParseChallange(authHeader);
if (request.Credentials != null && digest.IsUriProtected(request.CurrentUri) && (!request.HasHeader("Authorization") || digest.Stale))
{
resendRequest = true;
}
}
goto default;
}
// Redirected
case 301: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.2
case 302: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.3
case 307: // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html#sec10.3.8
case 308: // http://tools.ietf.org/html/rfc7238
{
if (request.RedirectCount >= request.MaxRedirects)
{
goto default;
}
request.RedirectCount++;
string location = request.Response.GetFirstHeaderValue("location");
if (!string.IsNullOrEmpty(location))
{
Uri redirectUri = ConnectionHelper.GetRedirectUri(request, location);
if (HTTPManager.Logger.Level == Logger.Loglevels.All)
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - Redirected to Location: '{1}' redirectUri: '{1}'", context, location, redirectUri));
}
// Let the user to take some control over the redirection
if (!request.CallOnBeforeRedirection(redirectUri))
{
HTTPManager.Logger.Information("HTTPConnection", string.Format("[{0}] OnBeforeRedirection returned False", context));
goto default;
}
// Remove the previously set Host header.
request.RemoveHeader("Host");
// Set the Referer header to the last Uri.
request.SetHeader("Referer", request.CurrentUri.ToString());
// Set the new Uri, the CurrentUri will return this while the IsRedirected property is true
request.RedirectUri = redirectUri;
// Discard the redirect response, we don't need it any more
request.Response = null;
request.IsRedirected = true;
resendRequest = true;
}
else
{
throw new Exception(string.Format("[{0}] Got redirect status({1}) without 'location' header!", context, request.Response.StatusCode.ToString()));
}
goto default;
}
#if !BESTHTTP_DISABLE_CACHING
case 304:
if (request.DisableCache)
{
break;
}
if (ConnectionHelper.LoadFromCache(context, request))
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - HandleResponse - Loaded from cache successfully!", context));
}
else
{
HTTPManager.Logger.Verbose("HTTPConnection", string.Format("[{0}] - HandleResponse - Loaded from cache failed!", context));
resendRequest = true;
}
break;
#endif
default:
#if !BESTHTTP_DISABLE_CACHING
ConnectionHelper.TryStoreInCache(request);
#endif
break;
}
// Closing the stream is done manually?
if (!request.Response.IsClosedManually)
{
// If we have a response and the server telling us that it closed the connection after the message sent to us, then
// we will close the connection too.
bool closeByServer = request.Response.HasHeaderWithValue("connection", "close");
bool closeByClient = !request.IsKeepAlive;
if (closeByServer || closeByClient)
{
proposedConnectionState = HTTPConnectionStates.Closed;
}
else if (request.Response != null)
{
var keepAliveheaderValues = request.Response.GetHeaderValues("keep-alive");
if (keepAliveheaderValues != null && keepAliveheaderValues.Count > 0)
{
if (keepAlive == null)
{
keepAlive = new KeepAliveHeader();
}
keepAlive.Parse(keepAliveheaderValues);
}
}
}
}
}
internal void Abort(HTTPConnectionStates newState)
{
State = newState;
if (Stream != null)
Stream.Dispose();
}
internal void Abort(HTTPConnectionStates newState)
{
State = newState;
switch(State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
if (Stream != null)
Stream.Dispose();
}
internal override void Abort(HTTPConnectionStates newState)
{
State = newState;
switch (State)
{
case HTTPConnectionStates.TimedOut: TimedOutStart = DateTime.UtcNow; break;
}
throw new NotImplementedException();
}
void OnResponse(int httpStatus, byte[] buffer, int bufferLength)
{
HTTPConnectionStates proposedConnectionState = HTTPConnectionStates.Processing;
bool resendRequest = false;
try
{
if (this.CurrentRequest.IsCancellationRequested)
{
return;
}
using (var ms = new BufferPoolMemoryStream())
{
Stream = ms;
XHR_GetStatusLine(NativeId, OnBufferCallback);
XHR_GetResponseHeaders(NativeId, OnBufferCallback);
if (buffer != null && bufferLength > 0)
{
ms.Write(buffer, 0, bufferLength);
}
ms.Seek(0L, SeekOrigin.Begin);
var internalBuffer = ms.GetBuffer();
string tmp = System.Text.Encoding.UTF8.GetString(internalBuffer);
HTTPManager.Logger.Information(this.NativeId + " OnResponse - full response ", tmp, this.Context);
SupportedProtocols protocol = CurrentRequest.ProtocolHandler == SupportedProtocols.Unknown ? HTTPProtocolFactory.GetProtocolFromUri(CurrentRequest.CurrentUri) : CurrentRequest.ProtocolHandler;
CurrentRequest.Response = HTTPProtocolFactory.Get(protocol, CurrentRequest, ms, CurrentRequest.UseStreaming, false);
CurrentRequest.Response.Receive(buffer != null && bufferLength > 0 ? (int)bufferLength : -1, true);
KeepAliveHeader keepAlive = null;
ConnectionHelper.HandleResponse(this.ToString(), this.CurrentRequest, out resendRequest, out proposedConnectionState, ref keepAlive);
}
}
catch (Exception e)
{
HTTPManager.Logger.Exception(this.NativeId + " WebGLConnection", "OnResponse", e, this.Context);
if (this.ShutdownType == ShutdownTypes.Immediate)
{
return;
}
#if !BESTHTTP_DISABLE_CACHING
if (this.CurrentRequest.UseStreaming)
{
HTTPCacheService.DeleteEntity(this.CurrentRequest.CurrentUri);
}
#endif
// Something gone bad, Response must be null!
this.CurrentRequest.Response = null;
if (!this.CurrentRequest.IsCancellationRequested)
{
this.CurrentRequest.Exception = e;
this.CurrentRequest.State = HTTPRequestStates.Error;
}
proposedConnectionState = HTTPConnectionStates.Closed;
}
finally
{
// Exit ASAP
if (this.ShutdownType != ShutdownTypes.Immediate)
{
if (this.CurrentRequest.IsCancellationRequested)
{
// we don't know what stage the request is cancelled, we can't safely reuse the tcp channel.
proposedConnectionState = HTTPConnectionStates.Closed;
this.CurrentRequest.Response = null;
this.CurrentRequest.State = this.CurrentRequest.IsTimedOut ? HTTPRequestStates.TimedOut : HTTPRequestStates.Aborted;
}
else if (resendRequest)
{
RequestEventHelper.EnqueueRequestEvent(new RequestEventInfo(this.CurrentRequest, RequestEvents.Resend));
}
else if (this.CurrentRequest.Response != null && this.CurrentRequest.Response.IsUpgraded)
{
proposedConnectionState = HTTPConnectionStates.WaitForProtocolShutdown;
}
else if (this.CurrentRequest.State == HTTPRequestStates.Processing)
{
if (this.CurrentRequest.Response != null)
{
this.CurrentRequest.State = HTTPRequestStates.Finished;
}
else
{
this.CurrentRequest.Exception = new Exception(string.Format("[{0}] Remote server closed the connection before sending response header! Previous request state: {1}. Connection state: {2}",
this.ToString(),
this.CurrentRequest.State.ToString(),
this.State.ToString()));
this.CurrentRequest.State = HTTPRequestStates.Error;
proposedConnectionState = HTTPConnectionStates.Closed;
}
}
this.CurrentRequest = null;
if (proposedConnectionState == HTTPConnectionStates.Processing)
{
proposedConnectionState = HTTPConnectionStates.Closed;
}
ConnectionEventHelper.EnqueueConnectionEvent(new ConnectionEventInfo(this, proposedConnectionState));
}
}
}
