public async Task <IActionResult> RunAsync(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "nonce")] HttpRequest req,
ILogger log, CancellationToken cancellationToken)
{
try
{
var data = await req.DeserializeJsonBody <StoreNonceRequest>();
var verificationQuery = new VerifyRequestQuery(data, req);
var isVerified = await mediator.Send(verificationQuery, cancellationToken);
if (!isVerified)
{
return(new UnauthorizedResult());
}
var command = new StoreNonceCommand(data.CovidPass);
await mediator.Send(command, cancellationToken);
var query = new RetrieveNonceQuery(data.CovidPass);
var nonceEntry = await mediator.Send(query, cancellationToken);
return(new OkObjectResult(new StoreNonceResponse
{
Nonce = nonceEntry.Nonce
}));
}
catch (DomainException ex)
{
var errors = validation.ProcessErrors(ex);
return(new BadRequestObjectResult(errors));
}
}
protected override async Task Handle(SendHeartbeatCommand request, CancellationToken cancellationToken)
{
var profile = await repository.GetProfileAsync(request.ProfileId, request.DeviceId, request.CovidPass, cancellationToken);
if (profile == null)
{
throw new DomainException("Profile not found");
}
if (!profile.ActiveQuarantine(DateTime.UtcNow))
{
throw new DomainException("Profile not in quarantine");
}
var nonceQuery = new RetrieveNonceQuery(profile.CovidPass);
var nonceCache = await mediator.Send(nonceQuery, cancellationToken);
if (nonceCache == null)
{
throw new DomainException("Invalid nonce");
}
if (nonceCache.Nonce != request.Nonce)
{
throw new DomainException("Invalid nonce");
}
profile.UpdateLastPositionReportTime(DateTime.UtcNow);
await repository.UnitOfWork.SaveChangesAsync(cancellationToken);
}
protected override async Task Handle(UpdatePresenceCheckCommand request, CancellationToken cancellationToken)
{
var profile = await repository.GetProfileAsync(request.ProfileId, request.DeviceId, request.CovidPass, cancellationToken);
if (profile == null)
{
throw new DomainException("Profile not found");
}
var nonceQuery = new RetrieveNonceQuery(profile.CovidPass);
var nonceCache = await mediator.Send(nonceQuery, cancellationToken);
if (nonceCache == null)
{
throw new DomainException("Invalid nonce");
}
if (nonceCache.Nonce != request.Nonce)
{
throw new DomainException("Invalid nonce");
}
var now = DateTime.UtcNow;
var pendingSuspectedPresenceCheck = await context.PresenceChecks
.Where(x => x.ProfileId == profile.Id)
.Where(x => x.Status == PresenceCheckStatus.SUSPECTED)
.Where(x => x.CreatedOn <= now && now <= x.DeadLineCheck)
.FirstOrDefaultAsync(cancellationToken);
if (pendingSuspectedPresenceCheck == null)
{
throw new DomainException("There is no active check for given covid pass");
}
var newStatus = request.Status switch
{
Contracts.Requests.PresenceCheckStatus.OK => PresenceCheckStatus.OK,
Contracts.Requests.PresenceCheckStatus.LEFT => PresenceCheckStatus.LEFT,
_ => PresenceCheckStatus.SUSPECTED
};
pendingSuspectedPresenceCheck.UpdateStatus(newStatus);
await context.SaveChangesAsync(cancellationToken);
}
}