void CheckSendError (WebConnectionData data)
{
// Got here, but no one called GetResponse
int status = data.StatusCode;
if (status < 400 || status == 401 || status == 407)
return;
if (writeStream != null && asyncRead == null && !writeStream.CompleteRequestWritten) {
// The request has not been completely sent and we got here!
// We should probably just close and cause an error in any case,
saved_exc = new WebException (data.StatusDescription, null, WebExceptionStatus.ProtocolError, webResponse);
if (allowBuffering || sendChunked || writeStream.totalWritten >= contentLength) {
webResponse.ReadAll ();
} else {
writeStream.IgnoreIOErrors = true;
}
}
}
void CheckSendError(WebConnectionData data)
{
// Got here, but no one called GetResponse
int status = data.StatusCode;
if (status < 400 || status == 401 || status == 407)
{
return;
}
if (writeStream != null && asyncRead == null && !writeStream.CompleteRequestWritten)
{
// The request has not been completely sent and we got here!
// We should probably just close and cause an error in any case,
saved_exc = new WebException(data.StatusDescription, null, WebExceptionStatus.ProtocolError, webResponse);
webResponse.ReadAll();
}
}
// Returns true if redirected
bool CheckFinalStatus (WebAsyncResult result)
{
if (result.GotException) {
bodyBuffer = null;
throw result.Exception;
}
Exception throwMe = result.Exception;
HttpWebResponse resp = result.Response;
WebExceptionStatus protoError = WebExceptionStatus.ProtocolError;
HttpStatusCode code = 0;
if (throwMe == null && webResponse != null) {
code = webResponse.StatusCode;
if (!authCompleted && ((code == HttpStatusCode.Unauthorized && credentials != null) ||
(ProxyQuery && code == HttpStatusCode.ProxyAuthenticationRequired))) {
if (!usedPreAuth && CheckAuthorization (webResponse, code)) {
// Keep the written body, so it can be rewritten in the retry
if (InternalAllowBuffering) {
// NTLM: This is to avoid sending data in the 'challenge' request
// We save it in the first request (first 401), don't send anything
// in the challenge request and send it in the response request along
// with the buffers kept form the first request.
if (ntlm_auth_state != NtlmAuthState.Response) {
bodyBuffer = writeStream.WriteBuffer;
bodyBufferLength = writeStream.WriteBufferLength;
}
return true;
} else if (method != "PUT" && method != "POST") {
bodyBuffer = null;
return true;
}
if (!ThrowOnError)
return false;
writeStream.InternalClose ();
writeStream = null;
webResponse.Close ();
webResponse = null;
bodyBuffer = null;
throw new WebException ("This request requires buffering " +
"of data for authentication or " +
"redirection to be sucessful.");
}
}
bodyBuffer = null;
if ((int) code >= 400) {
string err = String.Format ("The remote server returned an error: ({0}) {1}.",
(int) code, webResponse.StatusDescription);
throwMe = new WebException (err, null, protoError, webResponse);
webResponse.ReadAll ();
} else if ((int) code == 304 && allowAutoRedirect) {
string err = String.Format ("The remote server returned an error: ({0}) {1}.",
(int) code, webResponse.StatusDescription);
throwMe = new WebException (err, null, protoError, webResponse);
} else if ((int) code >= 300 && allowAutoRedirect && redirects >= maxAutoRedirect) {
throwMe = new WebException ("Max. redirections exceeded.", null,
protoError, webResponse);
webResponse.ReadAll ();
}
}
bodyBuffer = null;
if (throwMe == null) {
bool b = false;
int c = (int) code;
if (allowAutoRedirect && c >= 300) {
if (InternalAllowBuffering && writeStream.WriteBufferLength > 0) {
bodyBuffer = writeStream.WriteBuffer;
bodyBufferLength = writeStream.WriteBufferLength;
}
b = Redirect (result, code);
if (b && ntlm_auth_state != 0)
ntlm_auth_state = 0;
}
if (resp != null && c >= 300 && c != 304)
resp.ReadAll ();
return b;
}
if (!ThrowOnError)
return false;
if (writeStream != null) {
writeStream.InternalClose ();
writeStream = null;
}
webResponse = null;
throw throwMe;
}
// Returns true if redirected
bool CheckFinalStatus(WebAsyncResult result)
{
if (result.GotException)
{
throw result.Exception;
}
Exception throwMe = result.Exception;
bodyBuffer = null;
HttpWebResponse resp = result.Response;
WebExceptionStatus protoError = WebExceptionStatus.ProtocolError;
HttpStatusCode code = 0;
if (throwMe == null && webResponse != null)
{
code = webResponse.StatusCode;
if (!authCompleted && ((code == HttpStatusCode.Unauthorized && credentials != null) ||
(ProxyQuery && code == HttpStatusCode.ProxyAuthenticationRequired)))
{
if (!usedPreAuth && CheckAuthorization(webResponse, code))
{
// Keep the written body, so it can be rewritten in the retry
if (InternalAllowBuffering)
{
bodyBuffer = writeStream.WriteBuffer;
bodyBufferLength = writeStream.WriteBufferLength;
webResponse.Close();
return(true);
}
else if (method != "PUT" && method != "POST")
{
webResponse.Close();
return(true);
}
writeStream.InternalClose();
writeStream = null;
webResponse.Close();
webResponse = null;
throw new WebException("This request requires buffering " +
"of data for authentication or " +
"redirection to be sucessful.");
}
}
if ((int)code >= 400)
{
string err = String.Format("The remote server returned an error: ({0}) {1}.",
(int)code, webResponse.StatusDescription);
throwMe = new WebException(err, null, protoError, webResponse);
webResponse.ReadAll();
}
else if ((int)code == 304 && allowAutoRedirect)
{
string err = String.Format("The remote server returned an error: ({0}) {1}.",
(int)code, webResponse.StatusDescription);
throwMe = new WebException(err, null, protoError, webResponse);
}
else if ((int)code >= 300 && allowAutoRedirect && redirects > maxAutoRedirect)
{
throwMe = new WebException("Max. redirections exceeded.", null,
protoError, webResponse);
webResponse.ReadAll();
}
}
if (throwMe == null)
{
bool b = false;
int c = (int)code;
if (allowAutoRedirect && c >= 300)
{
if (InternalAllowBuffering && writeStream.WriteBufferLength > 0)
{
bodyBuffer = writeStream.WriteBuffer;
bodyBufferLength = writeStream.WriteBufferLength;
}
b = Redirect(result, code);
}
if (resp != null && c >= 300 && c != 304)
{
resp.ReadAll();
}
return(b);
}
if (writeStream != null)
{
writeStream.InternalClose();
writeStream = null;
}
webResponse = null;
throw throwMe;
}
