/// <summary>
/// Starts an asynchronous DAV-HTTP-Request.
/// </summary>
/// <param name="header">The DAV-Request header to used.</param>
/// <param name="body">The DAV-Request-body to used.</param>
/// <param name="userObject">User defined object to deliver to respose method.</param>
/// <param name="response">A handler to call after the event completes.</param>
public void StartRequest(DAVRequestHeader header, DAVRequestBody body, object userObject, Action <DAVRequestResult, object> response)
{
LastException = null;
_relativeHost = new Uri(_host + header.RequestedResource);
header.Headers[Header.Host] = _host.DnsSafeHost;
// this is needed to modify some headers
//HttpWebRequest.RegisterPrefix("http", System.Net.Browser.WebRequestCreator.ClientHttp);
//HttpWebRequest.RegisterPrefix("https", System.Net.Browser.WebRequestCreator.ClientHttp);
HttpWebRequest.RegisterPrefix("http", WebRequestCreator.ClientHttp);
HttpWebRequest.RegisterPrefix("https", WebRequestCreator.ClientHttp);
HttpWebRequest request = HttpWebRequest.CreateHttp(_host + header.RequestedResource);
request.AllowReadStreamBuffering = false;
request.Method = header.RequestedMethod.ToString();
foreach (KeyValuePair <string, string> current in header.Headers)
{
// API restriction
switch (current.Key)
{
case "Accept":
request.Accept = current.Value;
break;
case "Content-Type":
request.ContentType = current.Value;
break;
default:
request.Headers[current.Key] = current.Value;
break;
}
}
if (_credit != null)
{
request.Credentials = _credit;
}
if (body != null)
{
request.BeginGetRequestStream(_EndRequestStream, new RequestStruct
{
Callback = response,
Request = request,
UserObject = userObject,
Body = body
});
}
else
{
request.BeginGetResponse(_EndRequest, new RequestStruct
{
Callback = response,
Request = request,
UserObject = userObject
});
}
}
void _EndRequestStream(IAsyncResult result)
{
RequestStruct obj = (RequestStruct)result.AsyncState;
DAVRequestBody body = obj.Body;
try
{
Stream stream = obj.Request.EndGetRequestStream(result);
body.XmlBody.Seek(0, SeekOrigin.Begin);
body.XmlBody.CopyTo(stream, 4096);
stream.Close();
obj.Request.BeginGetResponse(_EndRequest, obj);
}
catch (WebException we)
{
LastException = we;
obj.Callback(new DAVRequestResult(this, ((HttpWebResponse)we.Response).StatusCode, ((HttpWebResponse)we.Response).StatusDescription), obj.UserObject);
}
}
