/// <summary>
/// <inheritdoc />
/// </summary>
/// <param name="model"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
public virtual async Task <User> FacebookLoginAsync(FacebookLoginViewModel model,
CancellationToken cancellationToken = default(CancellationToken))
{
// Find token information.
var tokenInfo = await _externalAuthenticationService.GetFacebookTokenInfoAsync(model.AccessToken);
if (tokenInfo == null || string.IsNullOrWhiteSpace(tokenInfo.AccessToken))
{
throw new ApiException(HttpMessages.FacebookCodeIsInvalid, HttpStatusCode.Forbidden);
}
// Get the profile information.
var profile = await _externalAuthenticationService.GetFacebookBasicProfileAsync(tokenInfo.AccessToken);
if (profile == null)
{
throw new ApiException(HttpMessages.GoogleCodeIsInvalid, HttpStatusCode.Forbidden);
}
// Find accounts by searching for email address.
var accounts = _unitOfWork.Users.Search();
accounts = accounts.Where(x => x.Email.Equals(profile.Email));
// Get the first matched account.
var account = await accounts.FirstOrDefaultAsync(cancellationToken);
// Account is available in the system. Check its status.
if (account != null)
{
// Prevent account from logging into system because it is pending.
if (account.Status == UserStatus.Pending)
{
throw new ApiException(HttpMessages.AccountIsPending, HttpStatusCode.Forbidden);
}
// Prevent account from logging into system because it is deleted.
if (account.Status == UserStatus.Disabled)
{
throw new ApiException(HttpMessages.AccountIsPending, HttpStatusCode.Forbidden);
}
}
else
{
// Initialize account instance.
account = new User();
account.Email = profile.Email;
account.Nickname = profile.FullName;
account.Role = UserRole.User;
account.JoinedTime = _baseTimeService.DateTimeUtcToUnix(DateTime.UtcNow);
account.Type = UserKind.Facebook;
// Add account to database.
_unitOfWork.Users.Insert(account);
await _unitOfWork.CommitAsync(cancellationToken);
}
return(account);
}
