/// <summary>
/// Prepares to send a request to the Service Provider as the payload of a POST request.
/// </summary>
/// <param name="requestMessage">The message to be transmitted to the ServiceProvider.</param>
/// <returns>The web request ready to send.</returns>
/// <remarks>
/// This method is simply a standard HTTP POST request with the message parts serialized to the POST entity
/// with the application/x-www-form-urlencoded content type
/// This method satisfies OAuth 1.0 section 5.2, item #2 and OpenID 2.0 section 4.1.2.
/// </remarks>
protected virtual HttpWebRequest InitializeRequestAsPost(IDirectedProtocolMessage requestMessage)
{
ErrorUtilities.VerifyArgumentNotNull(requestMessage, "requestMessage");
var serializer = MessageSerializer.Get(requestMessage.GetType());
var fields = serializer.Serialize(requestMessage);
HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create(requestMessage.Recipient);
httpRequest.CachePolicy = this.CachePolicy;
httpRequest.Method = "POST";
httpRequest.ContentType = "application/x-www-form-urlencoded";
httpRequest.Headers[HttpRequestHeader.ContentEncoding] = PostEntityEncoding.WebName;
string requestBody = MessagingUtilities.CreateQueryString(fields);
byte[] requestBytes = PostEntityEncoding.GetBytes(requestBody);
httpRequest.ContentLength = requestBytes.Length;
Stream requestStream = this.WebRequestHandler.GetRequestStream(httpRequest);
try {
requestStream.Write(requestBytes, 0, requestBytes.Length);
} finally {
// We need to be sure to close the request stream...
// unless it is a MemoryStream, which is a clue that we're in
// a mock stream situation and closing it would preclude reading it later.
if (!(requestStream is MemoryStream))
{
requestStream.Dispose();
}
}
return(httpRequest);
}
/// <summary>
/// Serializes the <see cref="DataBag"/> instance to a buffer.
/// </summary>
/// <param name="message">The message.</param>
/// <returns>The buffer containing the serialized data.</returns>
protected override byte[] SerializeCore(T message)
{
var fields = MessageSerializer.Get(message.GetType()).Serialize(MessageDescriptions.GetAccessor(message));
string value = MessagingUtilities.CreateQueryString(fields);
return(Encoding.UTF8.GetBytes(value));
}
