internal static HttpResponsePacket ToHttpResponse(HttpResponse response, ServiceMessage msg)
{
var rsp = new HttpResponsePacket();
foreach (var hdr in response.Headers)
{
// TODO: Fix adding response headers
//AddHttpHeader(hdr);
}
//TODO: Decide if to read mostly from ServiceMessage or from response.
//rsp.Version = response.... //TODO: Add a default version here
rsp.StatusCode = (int)response.StatusCode;
rsp.StatusDescription = ((IHttpResponseFeature)msg).ReasonPhrase;
if (response.Body != null)
{
using (MemoryStream ms = new MemoryStream())
{
response.Body.Position = 0;
response.Body.CopyTo(ms);
rsp.Content = ms.ToArray();
}
}
return rsp;
}
internal static HttpResponsePacket ToHttpResponsePacket(this ServiceMessage message)
{
if (message == null) throw new ArgumentNullException("message");
var response = new HttpResponsePacket();
var respFeature = message as IHttpResponseFeature;
if (respFeature.Headers != null)
{
foreach (var hdr in respFeature.Headers)
{
response.Headers.Add(hdr.Key, hdr.Value);
}
}
response.Version = HTTP_RESPONSE_VERSION;
response.StatusCode = respFeature.StatusCode;
response.StatusDescription = respFeature.ReasonPhrase;
if (respFeature.Body != null)
{
using (MemoryStream ms = new MemoryStream())
{
respFeature.Body.Position = 0;
respFeature.Body.CopyTo(ms);
response.Content = ms.ToArray();
}
}
return response;
}
private HttpResponsePacket CreateResponsePacketFromMessage(HttpResponseMessage responseMsg, IRestBusSubscriber subscriber)
{
//TODO: Confirm that commas in response headers are merged iproperly into packet header
var responsePkt = new HttpResponsePacket(responseMsg);
//Add/Update Subscriber-Id header
responsePkt.Headers[Common.Shared.SUBSCRIBER_ID_HEADER] = new string[] { subscriber == null ? String.Empty : subscriber.Id ?? String.Empty };
return responsePkt;
}
public static HttpResponsePacket Deserialize(byte[] data)
{
if (data == null) throw new ArgumentNullException("data");
//if (SerializeAsBson)
//{
// return CommonUtils.DeserializeFromBson<HttpResponsePacket>(data);
//}
HttpMessageReader reader = new HttpMessageReader(data);
HttpResponsePacket response = new HttpResponsePacket();
bool isFirstLine = true;
string text;
while ((text = reader.NextLine()) != null)
{
if (isFirstLine)
{
isFirstLine = false;
string[] components = text.Split(new char[]{' '}, StringSplitOptions.RemoveEmptyEntries);
if (components.Length < 2)
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
if (!components[0].ToUpperInvariant().StartsWith("HTTP/") || components[0].Length <= 5 )
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
response.Version = components[0].Substring(5).Trim();
int statusCode = 0;
Int32.TryParse(components[1], out statusCode);
response.StatusCode = statusCode;
if (components.Length > 2)
{
string statusDescription = components[2].Trim();
for (int i = 3; i < components.Length; i++)
{
//TODO: Should I convert this to a string builder. Is it worth it?
statusDescription += (" " + components[i]);
}
response.StatusDescription = statusDescription;
}
else
{
response.StatusDescription = String.Empty;
}
}
else
{
ParseLineIntoHeaders(text, response.Headers);
}
}
if (isFirstLine || !reader.IsContentReady)
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
response.Content = reader.GetContent();
return response;
}
public void SendResponse(MessageContext context, HttpResponsePacket response )
{
if (disposed) throw new ObjectDisposedException("Subscriber has been disposed");
if (String.IsNullOrEmpty(context.ReplyToQueue)) return;
if (conn == null)
{
//TODO: Log this -- it technically shouldn't happen. Also translate to a HTTP Unreachable because it means StartCallbackQueueConsumer didn't create a connection
throw new ApplicationException("This is Bad");
}
//TODO: Channel Pool this connection
using (IModel channel = conn.CreateModel())
{
BasicProperties basicProperties = new BasicProperties { CorrelationId = context.CorrelationId };
try
{
channel.BasicPublish(String.Empty,
context.ReplyToQueue,
basicProperties,
response.Serialize());
}
catch {
//TODO: Log execption
}
}
}
public static HttpResponsePacket Deserialize(byte[] data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
//if (SerializeAsBson)
//{
// return CommonUtils.DeserializeFromBson<HttpResponsePacket>(data);
//}
HttpMessageReader reader = new HttpMessageReader(data);
HttpResponsePacket response = new HttpResponsePacket();
bool isFirstLine = true;
string text;
while ((text = reader.NextLine()) != null)
{
if (isFirstLine)
{
isFirstLine = false;
string[] components = text.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (components.Length < 2)
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
if (!components[0].StartsWith("HTTP/", StringComparison.OrdinalIgnoreCase) || components[0].Length <= 5)
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
response.Version = components[0].Substring(5).Trim();
int statusCode = 0;
Int32.TryParse(components[1], out statusCode);
response.StatusCode = statusCode;
if (components.Length > 2)
{
string statusDescription = components[2].Trim();
for (int i = 3; i < components.Length; i++)
{
//TODO: Convert to a string builder? Is it worth it?
statusDescription += (" " + components[i]);
}
response.StatusDescription = statusDescription;
}
else
{
response.StatusDescription = String.Empty;
}
}
else
{
ParseLineIntoHeaders(text, response.Headers);
}
}
if (isFirstLine || !reader.IsContentReady)
{
throw new InvalidOperationException("Unable to deserialize data into HttpPacket");
}
response.Content = reader.GetContent();
return(response);
}
public void SendResponse(MessageContext context, HttpResponsePacket response )
{
if (disposed) throw new ObjectDisposedException(GetType().FullName);
var dispatch = context.Dispatch as MessageDispatch;
if (dispatch != null)
{
//Ack request
if(Settings.AckBehavior != SubscriberAckBehavior.Automatic && dispatch.Consumer.Model.IsOpen)
{
dispatch.Consumer.Model.BasicAck(dispatch.Delivery.DeliveryTag, false);
//NOTE: The call above takes place in different threads silmultaneously
//In which case multiple threads will be using the same channel at the same time.
//It's okay in this case, because transmissions within a channel are synchronized, as seen in:
//https://github.com/rabbitmq/rabbitmq-dotnet-client/blob/f16c093f6409e11d9d77115038cb224eb39468ec/projects/client/RabbitMQ.Client/src/client/impl/ModelBase.cs#L459
//and
//https://github.com/rabbitmq/rabbitmq-dotnet-client/blob/f16c093f6409e11d9d77115038cb224eb39468ec/projects/client/RabbitMQ.Client/src/client/impl/SessionBase.cs#L177
}
}
//Exit method if no replyToQueue was specified.
if (String.IsNullOrEmpty(context.ReplyToQueue)) return;
if (_subscriberPool.Connection == null)
{
//TODO: Log this -- it technically shouldn't happen. Also translate to a HTTP Unreachable because it means StartCallbackQueueConsumer didn't create a connection
throw new ApplicationException("This is Bad");
}
//Add/Update Subscriber-Id header
response.Headers[Common.Shared.SUBSCRIBER_ID_HEADER] = subscriberIdHeader;
//Send response
var pooler = _subscriberPool;
AmqpModelContainer model = null;
try
{
model = pooler.GetModel(ChannelFlags.None);
BasicProperties basicProperties = new BasicProperties { CorrelationId = context.CorrelationId };
model.Channel.BasicPublish(String.Empty,
context.ReplyToQueue,
basicProperties,
response.Serialize());
}
finally
{
if(model != null)
{
model.Close();
}
}
}
private static bool TryGetHttpResponseMessage(HttpResponsePacket packet, out HttpResponseMessage response)
{
try
{
response = new HttpResponseMessage
{
Content = packet.Content == null ? RestBusClient._emptyByteArrayContent : new ByteArrayContent(packet.Content),
Version = packet.Version == "1.1" ? VERSION_1_1 : new Version(packet.Version),
ReasonPhrase = packet.StatusDescription,
StatusCode = (System.Net.HttpStatusCode)packet.StatusCode
};
packet.PopulateHeaders(response.Content.Headers, response.Headers);
}
catch
{
response = null;
return false;
}
return true;
}
internal static HttpResponsePacket ToHttpResponsePacket(this ServiceMessage message)
{
if (message == null) throw new ArgumentNullException("message");
var response = new HttpResponsePacket();
var respFeature = message as IHttpResponseFeature;
if (respFeature.Headers != null)
{
foreach (var hdr in respFeature.Headers)
{
response.Headers.Add(hdr.Key, hdr.Value);
}
}
response.Version = HTTP_RESPONSE_VERSION;
response.StatusCode = respFeature.StatusCode;
if(String.IsNullOrEmpty(respFeature.ReasonPhrase))
{
response.StatusDescription = ReasonPhrases.ToReasonPhrase(response.StatusCode) ?? "Unknown";
}
else
{
response.StatusDescription = respFeature.ReasonPhrase;
}
if (message.OriginalResponseBody != null && message.OriginalResponseBody.CanRead)
{
//NOTE: OriginalResponseBody.CanRead will be false if the stream was disposed.
response.Content = message.OriginalResponseBody.ToArray();
}
//Add/Update Server header
response.Headers["Server"] = HTTP_RESPONSE_SERVER_HEADER;
return response;
}
