public async Task Handle(SignOn command)
{
if (command.Principal.Identity.IsAuthenticated)
{
command.SignedOn = await _queries.Execute(new UserBy(command.Principal));
return;
}
// try to find user by external login credentials
var externalLogin = await _queries.Execute(new PrincipalRemoteMembershipTicket(command.Principal));
if (externalLogin == null)
{
return;
}
var user = await _queries.Execute(new UserBy(externalLogin.Login));
if (user != null)
{
await _authenticator.SignOn(user, command.IsPersistent);
command.SignedOn = user;
return;
}
// if they don't exist, check with email claim
var emailClaim = await _queries.Execute(new ExternalCookieClaim(ClaimTypes.Email));
if (emailClaim != null)
{
var emailAddress = await _queries.Execute(new EmailAddressBy(emailClaim)
{
IsVerified = true,
EagerLoad = new Expression <Func <EmailAddress, object> >[]
{
x => x.User,
},
});
if (emailAddress != null)
{
// need to add the external login credentials
user = emailAddress.User;
_entities.Update(user); // make sure it is attached to the context
await _commands.Execute(new CreateRemoteMembership
{
Principal = command.Principal,
User = user,
});
await _authenticator.SignOn(user, command.IsPersistent);
command.SignedOn = user;
}
}
}
public Task UpdateAsync(User user)
{
ThrowIfDisposed();
if (user == null)
{
throw new ArgumentNullException("user");
}
_entities.Update(user);
//await SaveChanges().ConfigureAwait(false);
return(Task.FromResult(0));
}