CakeDC\Users\Model\Behavior\SocialBehavior::socialLogin PHP Method

    public function socialLogin(array $data, array $options)
    {
        $reference = Hash::get($data, 'id');
        $existingAccount = $this->_table->SocialAccounts->find()->where(['SocialAccounts.reference' => $reference, 'SocialAccounts.provider' => $data['provider']])->contain(['Users'])->first();
        if (empty($existingAccount->user)) {
            $user = $this->_createSocialUser($data, $options);
            if (!empty($user->social_accounts[0])) {
                $existingAccount = $user->social_accounts[0];
            } else {
                //@todo: what if we don't have a social account after createSocialUser?
                throw new InvalidArgumentException(__d('CakeDC/Users', 'Unable to login user with reference {0}', $reference));
            }
        } else {
            $user = $existingAccount->user;
        }
        if (!empty($existingAccount)) {
            if ($existingAccount->active) {
                if ($user->active) {
                    return $user;
                } else {
                    throw new UserNotActiveException([$existingAccount->provider, $existingAccount->{$user}]);
                }
            } else {
                throw new AccountNotActiveException([$existingAccount->provider, $existingAccount->reference]);
            }
        }
        return false;
    }