private Guid?DecryptCookie(EncryptedDeviceCookie encryptedDeviceCookie)
{
string value = _deviceCookieProtector.Unprotect(encryptedDeviceCookie.EncryptedValue);
bool isGuid = Guid.TryParse(value, out var deviceGuid);
if (isGuid)
{
return(deviceGuid);
}
return(null);
}
public async Task <bool> IsCookieTrustedForUser(EncryptedDeviceCookie encryptedDeviceCookie, AppUser user)
{
Guid?deviceId = DecryptCookie(encryptedDeviceCookie);
if (deviceId != null)
{
int count = await _authDbContext.Users
.AsNoTracking()
.Where(
u => u == user
)
.Where(
u => u.Sessions.Any(
s => s.DeviceCookie.Id == deviceId
)
)
.CountAsync();
return(count == 1);
}
return(false);
}
public async Task <AuthServer.Server.Models.DeviceCookie?> GetDeviceCookieAsync(EncryptedDeviceCookie encryptedDeviceCookie)
{
Guid?deviceId = DecryptCookie(encryptedDeviceCookie);
if (deviceId != null)
{
AuthServer.Server.Models.DeviceCookie?deviceCookie = await _authDbContext.DeviceCookies
.SingleOrDefaultAsync(d => d.Id == deviceId);
return(deviceCookie);
}
return(null);
}
