public static void WriteResponseMessage(HandshakeResponseMessage responseMessage, IBufferWriter <byte> output)
{
var textWriter = Utf8BufferTextWriter.Get(output);
try
{
using (var writer = JsonUtils.CreateJsonTextWriter(textWriter))
{
writer.WriteStartObject();
if (!string.IsNullOrEmpty(responseMessage.Error))
{
writer.WritePropertyName(ErrorPropertyName);
writer.WriteValue(responseMessage.Error);
}
writer.WriteEndObject();
writer.Flush();
}
}
finally
{
Utf8BufferTextWriter.Return(textWriter);
}
TextMessageFormatter.WriteRecordSeparator(output);
}
public static void WriteResponseMessage(HandshakeResponseMessage responseMessage, Stream output)
{
using (var writer = CreateJsonTextWriter(output))
{
writer.WriteStartObject();
if (!string.IsNullOrEmpty(responseMessage.Error))
{
writer.WritePropertyName(ErrorPropertyName);
writer.WriteValue(responseMessage.Error);
}
writer.WriteEndObject();
}
TextMessageFormatter.WriteRecordSeparator(output);
}
public static bool TryParseResponseMessage(ref ReadOnlySequence <byte> buffer, out HandshakeResponseMessage responseMessage)
{
if (!TextMessageParser.TryParseMessage(ref buffer, out var payload))
{
responseMessage = null;
return(false);
}
var textReader = Utf8BufferTextReader.Get(payload);
try
{
using (var reader = JsonUtils.CreateJsonTextReader(textReader))
{
JsonUtils.CheckRead(reader);
JsonUtils.EnsureObjectStart(reader);
string error = null;
var completed = false;
while (!completed && JsonUtils.CheckRead(reader))
{
switch (reader.TokenType)
{
case JsonToken.PropertyName:
var memberName = reader.Value.ToString();
switch (memberName)
{
case TypePropertyName:
// a handshake response does not have a type
// check the incoming message was not any other type of message
throw new InvalidDataException("Handshake response should not have a 'type' value.");
case ErrorPropertyName:
error = JsonUtils.ReadAsString(reader, ErrorPropertyName);
break;
default:
reader.Skip();
break;
}
break;
case JsonToken.EndObject:
completed = true;
break;
default:
throw new InvalidDataException($"Unexpected token '{reader.TokenType}' when reading handshake response JSON.");
}
}
;
responseMessage = (error != null) ? new HandshakeResponseMessage(error) : HandshakeResponseMessage.Empty;
return(true);
}
}
finally
{
Utf8BufferTextReader.Return(textReader);
}
}