/// <summary>
/// Read SOAP body.
/// </summary>
/// <param name="reader">EwsXmlReader</param>
internal AutodiscoverResponse ReadSoapBody(EwsXmlReader reader)
{
reader.ReadStartElement(XmlNamespace.Soap, XmlElementNames.SOAPBodyElementName);
AutodiscoverResponse responses = this.LoadFromXml(reader);
reader.ReadEndElement(XmlNamespace.Soap, XmlElementNames.SOAPBodyElementName);
return(responses);
}
/// <summary>
/// Loads responses from XML.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
internal AutodiscoverResponse LoadFromXml(EwsXmlReader reader)
{
string elementName = this.GetResponseXmlElementName();
reader.ReadStartElement(XmlNamespace.Autodiscover, elementName);
AutodiscoverResponse response = this.CreateServiceResponse();
response.LoadFromXml(reader, elementName);
return(response);
}
/// <summary>
/// Create a redirection response.
/// </summary>
/// <param name="httpWebResponse">The HTTP web response.</param>
private AutodiscoverResponse CreateRedirectionResponse(IEwsHttpWebResponse httpWebResponse)
{
string location = httpWebResponse.Headers[HttpResponseHeader.Location];
if (!string.IsNullOrEmpty(location))
{
try
{
Uri redirectionUri = new Uri(this.Url, location);
if ((redirectionUri.Scheme == /*Uri.UriSchemeHttp*/ "http") || (redirectionUri.Scheme == /*Uri.UriSchemeHttps*/ "https"))
{
AutodiscoverResponse response = this.CreateServiceResponse();
response.ErrorCode = AutodiscoverErrorCode.RedirectUrl;
response.RedirectionUrl = redirectionUri;
return(response);
}
this.Service.TraceMessage(
TraceFlags.AutodiscoverConfiguration,
string.Format("Invalid redirection URL '{0}' returned by Autodiscover service.", redirectionUri));
}
catch (UriFormatException)
{
this.Service.TraceMessage(
TraceFlags.AutodiscoverConfiguration,
string.Format("Invalid redirection location '{0}' returned by Autodiscover service.", location));
}
}
else
{
this.Service.TraceMessage(
TraceFlags.AutodiscoverConfiguration,
"Redirection response returned by Autodiscover service without redirection location.");
}
return(null);
}
/// <summary>
/// Executes this instance.
/// </summary>
/// <returns></returns>
internal AutodiscoverResponse InternalExecute()
{
this.Validate();
try
{
IEwsHttpWebRequest request = this.Service.PrepareHttpWebRequestForUrl(this.Url);
this.Service.TraceHttpRequestHeaders(TraceFlags.AutodiscoverRequestHttpHeaders, request);
bool needSignature = this.Service.Credentials != null && this.Service.Credentials.NeedSignature;
bool needTrace = this.Service.IsTraceEnabledFor(TraceFlags.AutodiscoverRequest);
using (MemoryStream memoryStream = new MemoryStream())
{
using (EwsServiceXmlWriter writer = new EwsServiceXmlWriter(this.Service, memoryStream))
{
writer.RequireWSSecurityUtilityNamespace = needSignature;
this.WriteSoapRequest(
this.Url,
writer);
}
if (needSignature)
{
this.service.Credentials.Sign(memoryStream);
}
if (needTrace)
{
memoryStream.Position = 0;
this.Service.TraceXml(TraceFlags.AutodiscoverRequest, memoryStream);
}
request.SetRequestStream(memoryStream);
}
using (IEwsHttpWebResponse webResponse = request.GetResponse())
{
if (AutodiscoverRequest.IsRedirectionResponse(webResponse))
{
AutodiscoverResponse response = this.CreateRedirectionResponse(webResponse);
if (response != null)
{
return(response);
}
else
{
throw new ServiceRemoteException(Strings.InvalidRedirectionResponseReturned);
}
}
using (Stream responseStream = AutodiscoverRequest.GetResponseStream(webResponse))
{
using (MemoryStream memoryStream = new MemoryStream())
{
// Copy response stream to in-memory stream and reset to start
EwsUtilities.CopyStream(responseStream, memoryStream);
memoryStream.Position = 0;
this.Service.TraceResponse(webResponse, memoryStream);
EwsXmlReader ewsXmlReader = new EwsXmlReader(memoryStream);
// WCF may not generate an XML declaration.
ewsXmlReader.Read();
if (ewsXmlReader.NodeType == XmlNodeType.XmlDeclaration)
{
ewsXmlReader.ReadStartElement(XmlNamespace.Soap, XmlElementNames.SOAPEnvelopeElementName);
}
else if ((ewsXmlReader.NodeType != XmlNodeType.Element) || (ewsXmlReader.LocalName != XmlElementNames.SOAPEnvelopeElementName) || (ewsXmlReader.NamespaceUri != EwsUtilities.GetNamespaceUri(XmlNamespace.Soap)))
{
throw new ServiceXmlDeserializationException(Strings.InvalidAutodiscoverServiceResponse);
}
this.ReadSoapHeaders(ewsXmlReader);
AutodiscoverResponse response = this.ReadSoapBody(ewsXmlReader);
ewsXmlReader.ReadEndElement(XmlNamespace.Soap, XmlElementNames.SOAPEnvelopeElementName);
if (response.ErrorCode == AutodiscoverErrorCode.NoError)
{
return(response);
}
else
{
throw new AutodiscoverResponseException(response.ErrorCode, response.ErrorMessage);
}
}
}
}
}
catch (WebException ex)
{
if (ex.Status == WebExceptionStatus.ProtocolError && ex.Response != null)
{
IEwsHttpWebResponse httpWebResponse = this.Service.HttpWebRequestFactory.CreateExceptionResponse(ex);
if (AutodiscoverRequest.IsRedirectionResponse(httpWebResponse))
{
this.Service.ProcessHttpResponseHeaders(
TraceFlags.AutodiscoverResponseHttpHeaders,
httpWebResponse);
AutodiscoverResponse response = this.CreateRedirectionResponse(httpWebResponse);
if (response != null)
{
return(response);
}
}
else
{
this.ProcessWebException(ex);
}
}
// Wrap exception if the above code block didn't throw
throw new ServiceRequestException(string.Format(Strings.ServiceRequestFailed, ex.Message), ex);
}
catch (XmlException ex)
{
this.Service.TraceMessage(
TraceFlags.AutodiscoverConfiguration,
string.Format("XML parsing error: {0}", ex.Message));
// Wrap exception
throw new ServiceRequestException(string.Format(Strings.ServiceRequestFailed, ex.Message), ex);
}
catch (IOException ex)
{
this.Service.TraceMessage(
TraceFlags.AutodiscoverConfiguration,
string.Format("I/O error: {0}", ex.Message));
// Wrap exception
throw new ServiceRequestException(string.Format(Strings.ServiceRequestFailed, ex.Message), ex);
}
}
