// NOTE: the supplied callback must be called only once the request is complete
// i.e. it's not called after the policy is downloaded
// i.e. it's not called after each redirection we need to follow
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
// Console.WriteLine ("{0} {1} {2}", GetType (), method, uri);
// we're not allowed to reuse an aborted request
if (IsAborted)
{
throw new WebException("Aborted", WebExceptionStatus.RequestCanceled);
}
// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
if (callback == null)
{
throw new NotSupportedException();
}
// we cannot issue 2 requests from the same instance
if (async_result != null)
{
throw new InvalidOperationException();
}
// this is the "global/total" IAsyncResult, it's also the public one
async_result = new HttpWebAsyncResult(callback, state);
GetResponse(this.Method, uri, true);
return(async_result);
}
public override WebResponse EndGetResponse(IAsyncResult ar)
{
HttpWebAsyncResult async_result = ar as HttpWebAsyncResult;
if (async_result == null)
{
throw new ArgumentException("asyncResult");
}
try {
if (!async_result.IsCompleted)
{
async_result.AsyncWaitHandle.WaitOne();
}
if (async_result.HasException)
{
throw async_result.Exception;
}
try {
return(new ClientHttpWebResponse(this, response));
}
catch (TargetInvocationException tie) {
throw tie.InnerException;
}
}
finally {
async_result.Dispose();
}
}
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
// we're not allowed to reuse an aborted request
if (aborted)
{
throw new WebException("Aborted", WebExceptionStatus.RequestCanceled);
}
async_result = new HttpWebAsyncResult(callback, state);
dispatcher.BeginInvoke(new Action(InitializeNativeRequestSafe), null);
return(async_result);
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
WebClient.CallbackData callback_data = (state as WebClient.CallbackData);
if (callback_data != null) {
long length = callback_data.data.Length;
// if Content-Length has been set previously and does not match the data length...
if ((ContentLength != -1) && (ContentLength != length))
throw new ProtocolViolationException ();
ContentLength = length;
}
HttpWebAsyncResult result = new HttpWebAsyncResult (callback, state);
result.SetComplete ();
return result;
}
void EndCallback(IAsyncResult result)
{
HttpWebAsyncResult async_result = (result.AsyncState as HttpWebAsyncResult);
try {
response = end_get_response.Invoke(request, new object[] { asyncResult });
}
catch (TargetInvocationException tie) {
async_result.Response = new NotFoundWebResponse();
async_result.Exception = tie.InnerException;
}
finally {
async_result.SetComplete();
}
}
public override IAsyncResult BeginGetRequestStream(AsyncCallback callback, object state)
{
WebClient.CallbackData callback_data = (state as WebClient.CallbackData);
if (callback_data != null)
{
long length = callback_data.data.Length;
// if Content-Length has been set previously and does not match the data length...
if ((ContentLength != -1) && (ContentLength != length))
{
throw new ProtocolViolationException();
}
ContentLength = length;
}
HttpWebAsyncResult result = new HttpWebAsyncResult(callback, state);
result.SetComplete();
return(result);
}
// NOTE: the supplied callback must be called only once the request is complete
// i.e. it's not called after the policy is downloaded
// i.e. it's not called after each redirection we need to follow
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
// Console.WriteLine ("{0} {1} {2}", GetType (), method, uri);
// we're not allowed to reuse an aborted request
if (IsAborted)
throw new WebException ("Aborted", WebExceptionStatus.RequestCanceled);
// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
if (callback == null)
throw new NotSupportedException ();
// we cannot issue 2 requests from the same instance
if (async_result != null)
throw new InvalidOperationException ();
// this is the "global/total" IAsyncResult, it's also the public one
async_result = new HttpWebAsyncResult (callback, state);
GetResponse (this.Method, uri, true);
return async_result;
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
// we're not allowed to reuse an aborted request
if (aborted)
throw new WebException ("Aborted", WebExceptionStatus.RequestCanceled);
async_result = new HttpWebAsyncResult (callback, state);
dispatcher.BeginInvoke (new Action (InitializeNativeRequestSafe), null);
return async_result;
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
if (callback == null)
throw new NotSupportedException ();
// copy Method, Cookies and Headers to System.dll's HttpWebRequest
try {
if (Credentials != null) {
NetworkCredential nc = Credentials.GetCredential (RequestUri, String.Empty);
set_credentials.Invoke (request,
ClientReflectionHelper.BuildCredentials (nc.UserName, nc.Password, nc.Domain));
}
if ((CookieContainer != null) && (CookieContainer.Count > 0)) {
string cookieHeader = CookieContainer.GetCookieHeader (RequestUri);
if (!String.IsNullOrEmpty (cookieHeader))
ClientReflectionHelper.SetHeader (headers, "Cookie", cookieHeader);
}
if (ContentType != null) {
set_content_type.Invoke (request, new object [] { ContentType } );
}
if (Headers.Count > 0) {
string [] keys = Headers.AllKeys;
foreach (string key in keys) {
// we cannot set "Content-Type" using the headers
if (String.Compare (key, "content-type", StringComparison.OrdinalIgnoreCase) != 0)
ClientReflectionHelper.SetHeader (headers, key, Headers [key]);
}
}
IAsyncResult async_result = new HttpWebAsyncResult (callback, state);
asyncResult = (IAsyncResult) begin_get_response.Invoke (request,
new object [2] { new AsyncCallback (EndCallback), async_result });
return async_result;
}
catch (TargetInvocationException tie) {
throw tie.InnerException;
}
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
HttpWebAsyncResult result = new HttpWebAsyncResult (callback, state);
result.SetComplete ();
return result;
}
public override IAsyncResult BeginGetResponse(AsyncCallback callback, object state)
{
// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
if (callback == null)
{
throw new NotSupportedException();
}
// copy Method, Cookies and Headers to System.dll's HttpWebRequest
try {
if (Credentials != null)
{
NetworkCredential nc = Credentials.GetCredential(RequestUri, String.Empty);
set_credentials.Invoke(request,
ClientReflectionHelper.BuildCredentials(nc.UserName, nc.Password, nc.Domain));
}
if ((CookieContainer != null) && (CookieContainer.Count > 0))
{
string cookieHeader = CookieContainer.GetCookieHeader(RequestUri);
if (!String.IsNullOrEmpty(cookieHeader))
{
ClientReflectionHelper.SetHeader(headers, "Cookie", cookieHeader);
}
}
if (ContentType != null)
{
set_content_type.Invoke(request, new object [] { ContentType });
}
if (Headers.Count > 0)
{
foreach (string key in Headers)
{
// we cannot set some hedaers using the collection
switch (key.ToLowerInvariant())
{
case "accept":
case "content-type":
// ignore, we already have used the properties Accept and ContentType
// and reflect the values to the client stack
break;
case "range":
// XXX inconsistent results (DownloadStringAsync versus OpenReadAsync) in SL
#if false
int from, to;
if (ParseRange(Headers [key], out from, out to))
{
add_range.Invoke(request, new object [] { from, to });
}
#endif
break;
default:
ClientReflectionHelper.SetHeader(headers, key, Headers [key]);
break;
}
}
}
IAsyncResult async_result = new HttpWebAsyncResult(callback, state);
asyncResult = (IAsyncResult)begin_get_response.Invoke(request,
new object [2] {
new AsyncCallback(EndCallback), async_result
});
return(async_result);
}
catch (TargetInvocationException tie) {
throw tie.InnerException;
}
}
public override IAsyncResult BeginGetResponse (AsyncCallback callback, object state)
{
// under SL the callback MUST call the EndGetResponse, so having no callback is BAD
// this also means that faking a synch op using EndGetReponse(BeginGetReponse(null,null)) does NOT work
if (callback == null)
throw new NotSupportedException ();
// copy Method, Cookies and Headers to System.dll's HttpWebRequest
try {
if (Credentials != null) {
NetworkCredential nc = Credentials.GetCredential (RequestUri, String.Empty);
set_credentials.Invoke (request,
ClientReflectionHelper.BuildCredentials (nc.UserName, nc.Password, nc.Domain));
}
if ((CookieContainer != null) && (CookieContainer.Count > 0)) {
string cookieHeader = CookieContainer.GetCookieHeader (RequestUri);
if (!String.IsNullOrEmpty (cookieHeader))
ClientReflectionHelper.SetHeader (headers, "Cookie", cookieHeader);
}
if (ContentType != null) {
set_content_type.Invoke (request, new object [] { ContentType } );
}
if (Headers.Count > 0) {
foreach (string key in Headers) {
// we cannot set some hedaers using the collection
switch (key.ToLowerInvariant ()) {
case "accept":
case "content-type":
// ignore, we already have used the properties Accept and ContentType
// and reflect the values to the client stack
break;
case "range":
// XXX inconsistent results (DownloadStringAsync versus OpenReadAsync) in SL
#if false
int from, to;
if (ParseRange (Headers [key], out from, out to))
add_range.Invoke (request, new object [] { from, to } );
#endif
break;
default:
ClientReflectionHelper.SetHeader (headers, key, Headers [key]);
break;
}
}
}
IAsyncResult async_result = new HttpWebAsyncResult (callback, state);
asyncResult = (IAsyncResult) begin_get_response.Invoke (request,
new object [2] { new AsyncCallback (EndCallback), async_result });
return async_result;
}
catch (TargetInvocationException tie) {
throw tie.InnerException;
}
}
