private void OnGetRequestStream(IAsyncResult ar)
{
try
{
WebRequestState state = ar.AsyncState as WebRequestState;
if (state.Aborted)
{
activeRequests--;
StartWebRequest(true, state.Output);
}
else
{
state.TimeOutTimer.Dispose();
HttpWebRequest req = state.WebRequest as HttpWebRequest;
Stream requestStream = req.EndGetRequestStream(ar);
state.RequestStream = requestStream;
byte[] bytes = Encoding.UTF8.GetBytes(state.Output);
requestStream.BeginWrite(bytes, 0, bytes.Length, OnEndWrite, state);
}
}
catch (Exception ex)
{
activeRequests--;
WebRequestState state = ar.AsyncState as WebRequestState;
StartWebRequest(true, state.Output);
}
}
private void OnEndWrite(IAsyncResult ar)
{
WebRequestState state = ar.AsyncState as WebRequestState;
HttpWebRequest req = state.WebRequest as HttpWebRequest;
Stream requestStream = state.RequestStream;
requestStream.EndWrite(ar);
requestStream.Close();
IAsyncResult result;
try
{
if (state.IsSessionRequest)
{
req.BeginGetResponse(OnGetSessionRequestResponse, state);
}
else
{
req.BeginGetResponse(OnGetResponse, state);
}
}
catch (Exception ex)
{
//Console.WriteLine(ex.Message);
}
}
public void TimeOutGetRequestStream(Object stateObj)
{
//Console.WriteLine("Web Request timed out");
WebRequestState state = stateObj as WebRequestState;
state.TimeOutTimer.Dispose();
state.Aborted = true;
state.WebRequest.Abort();
}
private void StartWebRequest(bool retry, string content)
{
lock (this)
{
webRequestId++;
}
activeRequests++;
lastSend = DateTime.Now;
HttpWebRequest req = (HttpWebRequest)CreateWebrequest(Address);;
WebRequestState state = new WebRequestState(req);
state.Started = DateTime.Now;
state.WebRequestId = webRequestId;
if (!retry)
{
state.Output = BuildPostData();
}
else
{
state.Output = content;
}
req.Method = METHOD;
req.ContentType = CONTENT_TYPE;
req.Timeout = m_Wait * 1000;
req.KeepAlive = m_KeepAlive;
req.ContentLength = Encoding.UTF8.GetBytes(state.Output).Length;
// Create the delegate that invokes methods for the timer.
TimerCallback timerDelegate = TimeOutGetRequestStream;
Timer timeoutTimer = new Timer(timerDelegate, state, WEBREQUEST_TIMEOUT, WEBREQUEST_TIMEOUT);
state.TimeOutTimer = timeoutTimer;
try
{
req.BeginGetRequestStream(OnGetRequestStream, state);
}
catch (Exception ex)
{
//Console.WriteLine(ex.Message);
}
}
private void OnGetSessionRequestStream(IAsyncResult ar)
{
try
{
WebRequestState state = ar.AsyncState as WebRequestState;
HttpWebRequest req = state.WebRequest as HttpWebRequest;
Stream outputStream = req.EndGetRequestStream(ar);
byte[] bytes = Encoding.UTF8.GetBytes(state.Output);
state.RequestStream = outputStream;
IAsyncResult result = outputStream.BeginWrite(bytes, 0, bytes.Length, OnEndWrite, state);
}
catch (WebException ex)
{
FireOnError(ex);
Disconnect();
}
}
private void OnGetResponse(IAsyncResult ar)
{
try
{
requestIsTerminating = true;
// grab the custom state object
WebRequestState state = (WebRequestState)ar.AsyncState;
HttpWebRequest request = (HttpWebRequest)state.WebRequest;
HttpWebResponse resp = null;
if (request.HaveResponse)
{
// TODO, its crashing mostly here
// get the Response
try
{
resp = (HttpWebResponse)request.EndGetResponse(ar);
}
catch (WebException ex)
{
activeRequests--;
requestIsTerminating = false;
if (ex.Response == null)
{
StartWebRequest();
}
else
{
HttpWebResponse res = ex.Response as HttpWebResponse;
if (res.StatusCode == HttpStatusCode.NotFound)
{
TerminateBoshSession();
}
}
return;
}
// The server must always return a 200 response code,
// sending any session errors as specially-formatted identifiers.
if (resp.StatusCode != HttpStatusCode.OK)
{
activeRequests--;
requestIsTerminating = false;
if (resp.StatusCode == HttpStatusCode.NotFound)
{
//Console.WriteLine("Not Found");
TerminateBoshSession();
}
return;
}
}
else
{
//Console.WriteLine("No response");
}
Stream rs = resp.GetResponseStream();
int readlen;
byte[] readbuf = new byte[1024];
MemoryStream ms = new MemoryStream();
while ((readlen = rs.Read(readbuf, 0, readbuf.Length)) > 0)
{
ms.Write(readbuf, 0, readlen);
}
byte[] recv = ms.ToArray();
if (recv.Length > 0)
{
string sbody = null;
string stanzas = null;
ParseResponse(Encoding.UTF8.GetString(recv, 0, recv.Length), ref sbody, ref stanzas);
if (stanzas != null)
{
byte[] bStanzas = Encoding.UTF8.GetBytes(stanzas);
base.FireOnReceive(bStanzas, bStanzas.Length);
}
else
{
if (sbody != null)
{
var doc = new Document();
doc.LoadXml(sbody);
if (doc.RootElement != null)
{
var body = doc.RootElement as Body;
if (body.Type == BoshType.terminate)
{
TerminateBoshSession();
}
}
}
if (terminate && !terminated)
{
// empty teminate response
TerminateBoshSession();
}
}
}
// cleanup webrequest resources
ms.Close();
rs.Close();
resp.Close();
activeRequests--;
requestIsTerminating = false;
//if (activeRequests == 0 && !terminated)
if ((activeRequests == 0 && !terminated) ||
(activeRequests == 1 && m_SendQueue.Count > 0))
{
StartWebRequest();
}
}
catch (Exception ex)
{
}
}
private void OnGetSessionRequestResponse(IAsyncResult result)
{
// grab the custom state object
WebRequestState state = (WebRequestState)result.AsyncState;
HttpWebRequest request = (HttpWebRequest)state.WebRequest;
//state.TimeOutTimer.Dispose();
// get the Response
HttpWebResponse resp = (HttpWebResponse)request.EndGetResponse(result);
// The server must always return a 200 response code,
// sending any session errors as specially-formatted identifiers.
if (resp.StatusCode != HttpStatusCode.OK)
{
return;
}
Stream rs = resp.GetResponseStream();
int readlen;
byte[] readbuf = new byte[1024];
MemoryStream ms = new MemoryStream();
while ((readlen = rs.Read(readbuf, 0, readbuf.Length)) > 0)
{
ms.Write(readbuf, 0, readlen);
}
byte[] recv = ms.ToArray();
if (recv.Length > 0)
{
string body = null;
string stanzas = null;
string res = Encoding.UTF8.GetString(recv, 0, recv.Length);
ParseResponse(res, ref body, ref stanzas);
Document doc = new Document();
doc.LoadXml(body);
Body boshBody = doc.RootElement as Body;
sid = boshBody.Sid;
polling = boshBody.Polling;
m_MaxPause = boshBody.MaxPause;
byte[] bin = Encoding.UTF8.GetBytes(DummyStreamHeader + stanzas);
base.FireOnReceive(bin, bin.Length);
// cleanup webrequest resources
ms.Close();
rs.Close();
resp.Close();
activeRequests--;
if (activeRequests == 0)
{
StartWebRequest();
}
}
}
public void RequestBoshSession()
{
/*
* Example 1. Requesting a BOSH session
*
* POST /webclient HTTP/1.1
* Host: httpcm.jabber.org
* Accept-Encoding: gzip, deflate
* Content-Type: text/xml; charset=utf-8
* Content-Length: 104
*
* <body content='text/xml; charset=utf-8'
* hold='1'
* rid='1573741820'
* to='jabber.org'
* route='xmpp:jabber.org:9999'
* secure='true'
* ver='1.6'
* wait='60'
* ack='1'
* xml:lang='en'
* xmlns='http://jabber.org/protocol/httpbind'/>
*/
lastSend = DateTime.Now;
// Generate the keys
GenerateKeys();
rid = GenerateRid();
Body body = new Body();
/*
* <body hold='1' xmlns='http://jabber.org/protocol/httpbind'
* to='vm-2k'
* wait='300'
* rid='782052'
* newkey='8e7d6cec12004e2bfcf7fc000310fda87bc8337c'
* ver='1.6'
* xmpp:xmlns='urn:xmpp:xbosh'
* xmpp:version='1.0'/>
*/
//window='5' content='text/xml; charset=utf-8'
//body.SetAttribute("window", "5");
//body.SetAttribute("content", "text/xml; charset=utf-8");
body.Version = BOSH_VERSION;
body.XmppVersion = "1.0";
body.Hold = m_Hold;
body.Wait = m_Wait;
body.Rid = rid;
body.Polling = 0;
body.Requests = m_Requests;
body.To = new Jid(m_XmppCon.Server);
body.NewKey = Keys[CurrentKeyIdx];
body.SetAttribute("xmpp:xmlns", "urn:xmpp:xbosh");
activeRequests++;
HttpWebRequest req = (HttpWebRequest)CreateWebrequest(Address);
WebRequestState state = new WebRequestState(req);
state.Started = DateTime.Now;
state.Output = body.ToString();
state.IsSessionRequest = true;
req.Method = METHOD;
req.ContentType = CONTENT_TYPE;
req.Timeout = m_Wait * 1000;
req.KeepAlive = m_KeepAlive;
req.ContentLength = Encoding.UTF8.GetBytes(state.Output).Length; // state.Output.Length;
try
{
IAsyncResult result = req.BeginGetRequestStream(new AsyncCallback(this.OnGetSessionRequestStream), state);
}
catch (Exception)
{
}
}
