private (string, PairingSession) IsValidPairingSession(string pairingId, [JsonConverter(typeof(StringEnumConverter))] HandshakeResourceType handshakeResourceType = HandshakeResourceType.None)
{
var pairingSession = _sessions.FirstOrDefault(a => a.Id.Equals(pairingId, StringComparison.InvariantCultureIgnoreCase));
if (pairingSession == null)
{
return("pairing session not found", null);
}
else if (handshakeResourceType != HandshakeResourceType.None)
{
if (pairingSession.Step != handshakeResourceType)
{
return("the pairing session has not reached a valid state to do that", pairingSession);
}
else
{
return("OK", pairingSession);
}
}
return("OK", pairingSession);
}
public IActionResult Handle([FromQuery] string pairingId, [FromQuery][JsonConverter(typeof(StringEnumConverter))] HandshakeResourceType resource, [FromBody] string data)
{
(string, PairingSession)pairingSession;
switch (resource)
{
case HandshakeResourceType.None:
return(BadRequest("no resource given"));
case HandshakeResourceType.ServerHello:
pairingSession = IsValidPairingSession(pairingId);
if (pairingSession.Item2 == null)
{
pairingSession.Item1 = "OK";
pairingSession.Item2 = new PairingSession(pairingId);
_sessions.Add(pairingSession.Item2);
}
if (pairingSession.Item2.Step != HandshakeResourceType.None)
{
return(BadRequest("the pairing session has not reached a valid state to do that"));
}
if (pairingSession.Item1 == "OK")
{
var returnData = pairingSession.Item2.GenerateServerHello(data);
var apiCallResponse = new ApiCallResponse(ApiCallMethod.POST, Constants.Step1Url, JsonConvert.SerializeObject(returnData));
return(Ok(apiCallResponse));
}
else
{
return(BadRequest(pairingSession.Item1));
}
case HandshakeResourceType.ClientHello:
pairingSession = IsValidPairingSession(pairingId, HandshakeResourceType.ClientHello);
if (pairingSession.Item1 == "OK")
{
var returnAckData = pairingSession.Item2.ParseClientHello(data);
return(Accepted(returnAckData));
}
else
{
return(BadRequest(pairingSession.Item1));
}
case HandshakeResourceType.ServerAck:
pairingSession = IsValidPairingSession(pairingId, HandshakeResourceType.ServerAck);
if (pairingSession.Item1 == "OK")
{
var ackData = pairingSession.Item2.GenerateServerAck();
var ackCallResponse = new ApiCallResponse(ApiCallMethod.POST, Constants.Step2Url, JsonConvert.SerializeObject(ackData));
return(Ok(ackCallResponse));
}
else
{
return(BadRequest(pairingSession.Item1));
}
case HandshakeResourceType.ClientAck:
pairingSession = IsValidPairingSession(pairingId, HandshakeResourceType.ClientAck);
if (pairingSession.Item1 == "OK")
{
var returnAckData = pairingSession.Item2.ParseClientAck(data);
return(Accepted(returnAckData));
}
else
{
return(BadRequest(pairingSession.Item1));
}
case HandshakeResourceType.Session:
pairingSession = IsValidPairingSession(pairingId, HandshakeResourceType.Session);
if (pairingSession.Item1 == "OK")
{
var returnSessionData = pairingSession.Item2.GetKey();
return(Accepted(new KeyWrapper(Convert.ToBase64String(returnSessionData))));
}
else
{
return(BadRequest(pairingSession.Item1));
}
default:
return(BadRequest("no resource given"));
}
}
