public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
bool send = (method == "PUT" || method == "POST");
if (send)
{
if ((!KeepAlive || (ContentLength == -1 && !SendChunked)) && !AllowWriteStreamBuffering)
{
throw new ProtocolViolationException("Content-Length not set");
}
}
CommonChecks(send);
Monitor.Enter(this);
getResponseCalled = true;
if (asyncRead != null && !haveResponse)
{
Monitor.Exit(this);
throw new InvalidOperationException("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
CheckIfForceWrite();
asyncRead = new WebAsyncResult(this, callback, state);
WebAsyncResult aread = asyncRead;
initialMethod = method;
if (haveResponse)
{
if (webResponse != null)
{
Exception saved = saved_exc;
Monitor.Exit(this);
if (saved == null)
{
aread.SetCompleted(true, webResponse);
}
else
{
aread.SetCompleted(true, saved);
}
aread.DoCallback();
return(aread);
}
}
if (!requestSent)
{
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint();
abortHandler = servicePoint.SendRequest(this, connectionGroup);
}
Monitor.Exit(this);
return(aread);
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
if (Aborted)
throw new WebException ("The request was canceled.", WebExceptionStatus.RequestCanceled);
if (method == null)
throw new ProtocolViolationException ("Method is null.");
string transferEncoding = TransferEncoding;
if (!sendChunked && transferEncoding != null && transferEncoding.Trim () != "")
throw new ProtocolViolationException ("SendChunked should be true.");
Monitor.Enter (locker);
getResponseCalled = true;
if (asyncRead != null && !haveResponse) {
Monitor.Exit (locker);
throw new InvalidOperationException ("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
CheckIfForceWrite ();
asyncRead = new WebAsyncResult (this, callback, state);
WebAsyncResult aread = asyncRead;
initialMethod = method;
if (haveResponse) {
Exception saved = saved_exc;
if (webResponse != null) {
Monitor.Exit (locker);
if (saved == null) {
aread.SetCompleted (true, webResponse);
} else {
aread.SetCompleted (true, saved);
}
aread.DoCallback ();
return aread;
} else if (saved != null) {
Monitor.Exit (locker);
aread.SetCompleted (true, saved);
aread.DoCallback ();
return aread;
}
}
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
Monitor.Exit (locker);
return aread;
}
public override IAsyncResult BeginGetRequestStream(AsyncCallback callback, object state)
{
if (aborted)
{
throw new WebException("The request was previosly aborted.");
}
bool send = !(method == "GET" || method == "CONNECT" || method == "HEAD" ||
method == "TRACE" || method == "DELETE");
if (method == null || !send)
{
throw new ProtocolViolationException("Cannot send data when method is: " + method);
}
CommonChecks(send);
lock (locker)
{
if (asyncWrite != null)
{
throw new InvalidOperationException("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
asyncWrite = new WebAsyncResult(this, callback, state);
initialMethod = method;
if (haveRequest)
{
if (writeStream != null)
{
asyncWrite.SetCompleted(true, writeStream);
asyncWrite.DoCallback();
return(asyncWrite);
}
}
gotRequestStream = true;
WebAsyncResult result = asyncWrite;
if (!requestSent)
{
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint();
abortHandler = servicePoint.SendRequest(this, connectionGroup);
}
return(result);
}
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
if (Aborted)
throw new WebException ("The request was canceled.", WebExceptionStatus.RequestCanceled);
bool send = !(method == "GET" || method == "CONNECT" || method == "HEAD" ||
method == "TRACE");
if (method == null || !send)
throw new ProtocolViolationException ("Cannot send data when method is: " + method);
if (contentLength == -1 && !sendChunked && !allowBuffering && KeepAlive)
throw new ProtocolViolationException ("Content-Length not set");
string transferEncoding = TransferEncoding;
if (!sendChunked && transferEncoding != null && transferEncoding.Trim () != "")
throw new ProtocolViolationException ("SendChunked should be true.");
lock (locker)
{
if (asyncWrite != null) {
throw new InvalidOperationException ("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
asyncWrite = new WebAsyncResult (this, callback, state);
initialMethod = method;
if (haveRequest) {
if (writeStream != null) {
asyncWrite.SetCompleted (true, writeStream);
asyncWrite.DoCallback ();
return asyncWrite;
}
}
gotRequestStream = true;
WebAsyncResult result = asyncWrite;
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
return result;
}
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
if (Aborted)
throw new WebException ("The request was canceled.", WebExceptionStatus.RequestCanceled);
if (method == null)
throw new ProtocolViolationException ("Method is null.");
string transferEncoding = TransferEncoding;
if (!sendChunked && transferEncoding != null && transferEncoding.Trim () != "")
throw new ProtocolViolationException ("SendChunked should be true.");
Monitor.Enter (locker);
getResponseCalled = true;
if (asyncRead != null && !haveResponse) {
Monitor.Exit (locker);
throw new InvalidOperationException ("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
CheckIfForceWrite ();
asyncRead = new WebAsyncResult (this, callback, state);
WebAsyncResult aread = asyncRead;
initialMethod = method;
if (haveResponse) {
Exception saved = saved_exc;
if (webResponse != null) {
Monitor.Exit (locker);
if (saved == null) {
aread.SetCompleted (true, webResponse);
} else {
aread.SetCompleted (true, saved);
}
aread.DoCallback ();
return aread;
} else if (saved != null) {
Monitor.Exit (locker);
aread.SetCompleted (true, saved);
aread.DoCallback ();
return aread;
}
}
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
Monitor.Exit (locker);
return aread;
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
if (Aborted)
throw new WebException ("The request was canceled.", WebExceptionStatus.RequestCanceled);
bool send = !(method == "GET" || method == "CONNECT" || method == "HEAD" ||
method == "TRACE");
if (method == null || !send)
throw new ProtocolViolationException ("Cannot send data when method is: " + method);
if (contentLength == -1 && !sendChunked && !allowBuffering && KeepAlive)
throw new ProtocolViolationException ("Content-Length not set");
string transferEncoding = TransferEncoding;
if (!sendChunked && transferEncoding != null && transferEncoding.Trim () != "")
throw new ProtocolViolationException ("SendChunked should be true.");
lock (locker)
{
if (getResponseCalled)
throw new InvalidOperationException ("The operation cannot be performed once the request has been submitted.");
if (asyncWrite != null) {
throw new InvalidOperationException ("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
asyncWrite = new WebAsyncResult (this, callback, state);
initialMethod = method;
if (haveRequest) {
if (writeStream != null) {
asyncWrite.SetCompleted (true, writeStream);
asyncWrite.DoCallback ();
return asyncWrite;
}
}
gotRequestStream = true;
WebAsyncResult result = asyncWrite;
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
return result;
}
}
internal void SetResponseData (WebConnectionData data)
{
lock (locker) {
if (Aborted) {
if (data.stream != null)
data.stream.Close ();
return;
}
WebException wexc = null;
try {
webResponse = new HttpWebResponse (actualUri, method, data, cookieContainer);
} catch (Exception e) {
wexc = new WebException (e.Message, e, WebExceptionStatus.ProtocolError, null);
if (data.stream != null)
data.stream.Close ();
}
if (wexc == null && (method == "POST" || method == "PUT")) {
CheckSendError (data);
if (saved_exc != null)
wexc = (WebException) saved_exc;
}
WebAsyncResult r = asyncRead;
bool forced = false;
if (r == null && webResponse != null) {
// This is a forced completion (302, 204)...
forced = true;
r = new WebAsyncResult (null, null);
r.SetCompleted (false, webResponse);
}
if (r != null) {
if (wexc != null) {
haveResponse = true;
if (!r.IsCompleted)
r.SetCompleted (false, wexc);
r.DoCallback ();
return;
}
bool redirected;
try {
redirected = CheckFinalStatus (r);
if (!redirected) {
if (ntlm_auth_state != NtlmAuthState.None && authCompleted && webResponse != null
&& (int)webResponse.StatusCode < 400) {
WebConnectionStream wce = webResponse.GetResponseStream () as WebConnectionStream;
if (wce != null) {
WebConnection cnc = wce.Connection;
cnc.NtlmAuthenticated = true;
}
}
// clear internal buffer so that it does not
// hold possible big buffer (bug #397627)
if (writeStream != null)
writeStream.KillBuffer ();
haveResponse = true;
r.SetCompleted (false, webResponse);
r.DoCallback ();
} else {
if (webResponse != null) {
if (ntlm_auth_state != NtlmAuthState.None) {
HandleNtlmAuth (r);
return;
}
webResponse.Close ();
}
finished_reading = false;
haveResponse = false;
webResponse = null;
r.Reset ();
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
} catch (WebException wexc2) {
if (forced) {
saved_exc = wexc2;
haveResponse = true;
}
r.SetCompleted (false, wexc2);
r.DoCallback ();
return;
} catch (Exception ex) {
wexc = new WebException (ex.Message, ex, WebExceptionStatus.ProtocolError, null);
if (forced) {
saved_exc = wexc;
haveResponse = true;
}
r.SetCompleted (false, wexc);
r.DoCallback ();
return;
}
}
}
}
void GetResponseAsyncCB2 (WebAsyncResult aread)
{
if (haveResponse) {
Exception saved = saved_exc;
if (webResponse != null) {
Monitor.Exit (locker);
if (saved == null) {
aread.SetCompleted (true, webResponse);
} else {
aread.SetCompleted (true, saved);
}
aread.DoCallback ();
return;
} else if (saved != null) {
Monitor.Exit (locker);
aread.SetCompleted (true, saved);
aread.DoCallback ();
return;
}
}
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
Monitor.Exit (locker);
}
internal void SetResponseData (WebConnectionData data)
{
lock (locker) {
if (Aborted) {
if (data.stream != null)
data.stream.Close ();
return;
}
WebException wexc = null;
try {
webResponse = new HttpWebResponse (actualUri, method, data, cookieContainer);
} catch (Exception e) {
wexc = new WebException (e.Message, e, WebExceptionStatus.ProtocolError, null);
if (data.stream != null)
data.stream.Close ();
}
if (wexc == null && (method == "POST" || method == "PUT")) {
CheckSendError (data);
if (saved_exc != null)
wexc = (WebException) saved_exc;
}
WebAsyncResult r = asyncRead;
bool forced = false;
if (r == null && webResponse != null) {
// This is a forced completion (302, 204)...
forced = true;
r = new WebAsyncResult (null, null);
r.SetCompleted (false, webResponse);
}
if (r != null) {
if (wexc != null) {
haveResponse = true;
if (!r.IsCompleted)
r.SetCompleted (false, wexc);
r.DoCallback ();
return;
}
bool redirected;
try {
redirected = CheckFinalStatus (r);
if (!redirected) {
if (ntlm_auth_state != NtlmAuthState.None && authCompleted && webResponse != null
&& (int)webResponse.StatusCode < 400) {
WebConnectionStream wce = webResponse.GetResponseStream () as WebConnectionStream;
if (wce != null) {
WebConnection cnc = wce.Connection;
cnc.NtlmAuthenticated = true;
}
}
// clear internal buffer so that it does not
// hold possible big buffer (bug #397627)
if (writeStream != null)
writeStream.KillBuffer ();
haveResponse = true;
r.SetCompleted (false, webResponse);
r.DoCallback ();
} else {
if (webResponse != null) {
if (ntlm_auth_state != NtlmAuthState.None) {
HandleNtlmAuth (r);
return;
}
webResponse.Close ();
}
finished_reading = false;
haveResponse = false;
webResponse = null;
r.Reset ();
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
} catch (WebException wexc2) {
if (forced) {
saved_exc = wexc2;
haveResponse = true;
}
r.SetCompleted (false, wexc2);
r.DoCallback ();
return;
} catch (Exception ex) {
wexc = new WebException (ex.Message, ex, WebExceptionStatus.ProtocolError, null);
if (forced) {
saved_exc = wexc;
haveResponse = true;
}
r.SetCompleted (false, wexc);
r.DoCallback ();
return;
}
}
}
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
if (Aborted)
throw new WebException ("The request was canceled.", WebExceptionStatus.RequestCanceled);
if (method == null)
throw new ProtocolViolationException ("Method is null.");
#if !NET_2_0
bool send = !(method == "GET" || method == "CONNECT" || method == "HEAD" ||
method == "TRACE" || method == "DELETE");
if (send && contentLength < 0 && !sendChunked && !allowBuffering && KeepAlive)
throw new ProtocolViolationException ("Buffering is disabled, ContentLength is negative and SendChunked is disabled.");
if (!send && (contentLength > -1 || sendChunked))
throw new ProtocolViolationException ("ContentLength can't be set for non-write operations.");
#endif
string transferEncoding = TransferEncoding;
if (!sendChunked && transferEncoding != null && transferEncoding.Trim () != "")
throw new ProtocolViolationException ("SendChunked should be true.");
Monitor.Enter (locker);
getResponseCalled = true;
if (asyncRead != null && !haveResponse) {
Monitor.Exit (locker);
throw new InvalidOperationException ("Cannot re-call start of asynchronous " +
"method while a previous call is still in progress.");
}
CheckIfForceWrite ();
asyncRead = new WebAsyncResult (this, callback, state);
WebAsyncResult aread = asyncRead;
initialMethod = method;
if (haveResponse) {
Exception saved = saved_exc;
if (webResponse != null) {
Monitor.Exit (locker);
if (saved == null) {
aread.SetCompleted (true, webResponse);
} else {
aread.SetCompleted (true, saved);
}
aread.DoCallback ();
return aread;
} else if (saved != null) {
Monitor.Exit (locker);
aread.SetCompleted (true, saved);
aread.DoCallback ();
return aread;
}
}
if (!requestSent) {
requestSent = true;
redirects = 0;
servicePoint = GetServicePoint ();
abortHandler = servicePoint.SendRequest (this, connectionGroup);
}
Monitor.Exit (locker);
return aread;
}
internal void SetResponseData(WebConnectionData data)
{
if (aborted)
{
if (data.stream != null)
{
data.stream.Close();
}
return;
}
WebException wexc = null;
try {
webResponse = new HttpWebResponse(actualUri, method, data, cookieContainer);
haveResponse = true;
} catch (Exception e) {
wexc = new WebException(e.Message, e, WebExceptionStatus.ProtocolError, null);
if (data.stream != null)
{
data.stream.Close();
}
}
if (wexc == null && (method == "POST" || method == "PUT"))
{
lock (locker) {
CheckSendError(data);
if (saved_exc != null)
{
wexc = (WebException)saved_exc;
}
}
}
WebAsyncResult r = asyncRead;
if (r != null)
{
if (wexc != null)
{
r.SetCompleted(false, wexc);
r.DoCallback();
return;
}
bool redirected;
try {
redirected = CheckFinalStatus(r);
if (!redirected)
{
r.SetCompleted(false, webResponse);
r.DoCallback();
}
else
{
if (webResponse != null)
{
webResponse.Close();
webResponse = null;
}
haveResponse = false;
webResponse = null;
r.Reset();
servicePoint = GetServicePoint();
abortHandler = servicePoint.SendRequest(this, connectionGroup);
}
} catch (WebException wexc2) {
r.SetCompleted(false, wexc2);
r.DoCallback();
return;
} catch (Exception ex) {
wexc = new WebException(ex.Message, ex, WebExceptionStatus.ProtocolError, null);
r.SetCompleted(false, wexc);
r.DoCallback();
return;
}
}
}
