public dynamic Respond()
{
var task = DatabaseContext.Instance.UserExists(model.AuthenticatedClient.ProviderName,
model.AuthenticatedClient.UserInformation.Email);
task.ConfigureAwait(false); // For running async methods synchronously.
var result = task.Result;
Debug.WriteLine("UserExists: " + result);
if (result)
{
Debug.WriteLine("User exists, now retrieving user.");
var userTask = DatabaseContext.Instance.GetUser(model.AuthenticatedClient.ProviderName, model.AuthenticatedClient.UserInformation.Email);
UserModel user = userTask.Result;
if (!Utils.Instance.TokenExpired(user.AuthToken.Value.ToDateTimeFromEpoch())) //IF the AuthToken is not expired.
{
// Retrieving existing AuthToken.
var respone = new RegisterLoginModel(user.UserId, user.AuthToken.Key, Utils.Instance.SecondsfromNow(user.AuthToken.Value.ToDateTimeFromEpoch()));
return JsonConvert.SerializeObject(respone);
}
else
{
// Updating AuthToken+Timestamp.
string token = Convert.ToBase64String(Guid.NewGuid().ToByteArray());
user.AuthToken = new KeyValuePair<string, long>(token, DateTime.Now.ToEpochTime());
DatabaseContext.Instance.UpdateAuthToken(user);
var response = new RegisterLoginModel(user.UserId, user.AuthToken.Key, Utils.Instance.SecondsfromNow(user.AuthToken.Value.ToDateTimeFromEpoch()));
return JsonConvert.SerializeObject(response);
}
}
else
{
// Creating new user.
Debug.WriteLine("User doesn't exists, new user being created.");
UserModel newUser = new UserModel()
{
UserId = Guid.NewGuid().ToString(),
AuthProvider = model.AuthenticatedClient.ProviderName,
AuthId = model.AuthenticatedClient.UserInformation.Email,
AuthToken = new KeyValuePair<string,long>(Convert.ToBase64String(Guid.NewGuid().ToByteArray()), DateTime.Now.AddDays(1).ToEpochTime())
};
Debug.WriteLine(newUser);
DatabaseContext.Instance.AddUser(newUser);
var response = new RegisterLoginModel()
{
user_id = newUser.UserId,
auth_token = newUser.AuthToken.Key,
seconds = Utils.Instance.SecondsfromNow(newUser.AuthToken.Value.ToDateTimeFromEpoch())
};
return JsonConvert.SerializeObject(response);
}
}
public dynamic RespondToIDToken()
{
BsonDocument tokeninfo;
try
{
SaveRefreshToken();
tokeninfo = BsonDocument.Parse(ValidateToken());
loginRequestModel.auth_id = (string)tokeninfo["email"];
Debug.WriteLine("Response from Google tokeninfo endpoint: " + tokeninfo);
}
catch (Exception ex)
{
return "Oops, an error occured. Details: " + ex.Message;
}
if (tokeninfo.Contains("error_description"))
{
// ID token invalid.
return new BsonDocument{
{"status", "error"},
{"description", "Invalid ID token"}
};
}
else if ((string)tokeninfo["email"]!=loginRequestModel.auth_id)
{
// Email provided by the client and auth provider doesn't match.
return new BsonDocument{
{"status", "error"},
{"description", "Email ID mismatch"}
};
}
else
{
var task = DatabaseContext.Instance.UserExists(loginRequestModel.auth_provider,loginRequestModel.auth_id);
task.ConfigureAwait(false); // For running async methods synchronously.
var result = task.Result;
Debug.WriteLine("UserExists: " + result);
if (result)
{
Debug.WriteLine("User exists, now retrieving user.");
var userTask = DatabaseContext.Instance.GetUser(loginRequestModel.auth_provider, loginRequestModel.auth_id);
UserModel user = userTask.Result;
// Updating AuthToken+Timestamp.
string token = Convert.ToBase64String(Guid.NewGuid().ToByteArray());
user.AuthToken = new KeyValuePair<string, long>(token, DateTime.Now.ToEpochTime());
DatabaseContext.Instance.UpdateAuthToken(user);
var response = new RegisterLoginModel(user.UserId, user.AuthToken.Key, Utils.Instance.SecondsfromNow(user.AuthToken.Value.ToDateTimeFromEpoch()));
return JsonConvert.SerializeObject(response);
}
else
{
// Creating new user.
Debug.WriteLine("User doesn't exists, new user being created.");
UserModel newUser = new UserModel()
{
UserId = Guid.NewGuid().ToString(),
AuthProvider = loginRequestModel.auth_provider,
AuthId = loginRequestModel.auth_id,
IdToken = loginRequestModel.id_token,
AuthToken = new KeyValuePair<string, long>(Convert.ToBase64String(Guid.NewGuid().ToByteArray()), DateTime.Now.AddDays(1).ToEpochTime()),
AuthCode = loginRequestModel.server_auth_code
};
Debug.WriteLine(newUser);
DatabaseContext.Instance.AddUser(newUser);
var response = new RegisterLoginModel()
{
user_id = newUser.UserId,
auth_token = newUser.AuthToken.Key,
seconds = Utils.Instance.SecondsfromNow(newUser.AuthToken.Value.ToDateTimeFromEpoch())
};
return JsonConvert.SerializeObject(response);
}
}
}
