public async Task InvokeAsync(HttpContext context, IStatusResponse statusResponse)
{
//Set IStatusResponse on response headers at end of request session
context.Response.OnStarting(state =>
{
string statusRespStr = JsonSerializer.Serialize(statusResponse);
context.Response.Headers.Add(SRR.HeaderKey, statusRespStr);
return(Task.CompletedTask);
}, context);
try
{
await _next(context);
}
catch (Exception ex)
{
//Typically would log whatever exception was thrown to a permanent place
//Low-key just didn't want to impl a Logger NuGet .csproj that worked with a Logger.json file
List <StatusDetail> details = new List <StatusDetail>()
{
new StatusDetail()
{
Code = Status.Status900.UnknownCode.ToInt32(),
Desc = Status.StatusMessage.UnknownCode.GetValue()
},
new StatusDetail()
{
Code = Status.Status900.UnknownCode.ToInt32(),
Desc = ex.Message
}
};
statusResponse.SetStatusResponse(Status.Status500.FatalError, Status.StatusMessage.FatalError, details);
context.Response.StatusCode = (int)HttpStatusCode.NoContent;
context.Response.ContentLength = 0;
context.Response.Body = Stream.Null;
}
}
public async Task InvokeAsync(HttpContext context, IStatusResponse statusResp)
{
List <StatusDetail> statusDetails;
//Get Token from header
if (!context.Request.Headers.TryGetValue(TokenMan.RequestHeaderKey, out StringValues headerVal))
{
FailForMissingToken();
return;
}
string token = headerVal.FirstOrDefault();
if (string.IsNullOrWhiteSpace(token))
{
FailForMissingToken();
return;
}
//---Validations---
//Signature validation
bool isValid = TokenMan.ValidateTokenSignature(token);
if (!isValid)
{
statusDetails = new List <StatusDetail>()
{
new StatusDetail()
{
Code = Status300.TandemTokenNotValid.ToInt32(),
Desc = StatusMessage.TandemTokenNotValid.GetValue()
}
};
statusResp.SetStatusResponse(Status500.BadRequest, StatusMessage.BadRequest, statusDetails);
return;
}
//Expired validation
isValid = !TokenMan.TokenIsExpired(token);
if (!isValid)
{
statusDetails = new List <StatusDetail>()
{
new StatusDetail()
{
Code = Status300.TandemTokenNotValid.ToInt32(),
Desc = StatusMessage.TandemTokenNotValid.GetValue()
}
};
statusResp.SetStatusResponse(Status500.BadRequest, StatusMessage.BadRequest, statusDetails);
return;
}
//Token valid, proceed
await _next(context);
//LOCAL HELPER FUNCTION
void FailForMissingToken()
{
statusDetails = new List <StatusDetail>()
{
new StatusDetail()
{
Code = Status300.TandemTokenNotFound.ToInt32(),
Desc = StatusMessage.TandemTokenNotFound.GetValue()
}
};
statusResp.SetStatusResponse(Status500.BadRequest, StatusMessage.BadRequest, statusDetails);
}
}