userRepo = $userRepo; $this->socialite = $socialite; $this->socialAccount = $socialAccount; } /** * Start the social login path. * @param string $socialDriver * @return \Symfony\Component\HttpFoundation\RedirectResponse * @throws SocialDriverNotConfigured */ public function startLogIn($socialDriver) { $driver = $this->validateDriver($socialDriver); return $this->socialite->driver($driver)->redirect(); } /** * Start the social registration process * @param string $socialDriver * @return \Symfony\Component\HttpFoundation\RedirectResponse * @throws SocialDriverNotConfigured */ public function startRegister($socialDriver) { $driver = $this->validateDriver($socialDriver); return $this->socialite->driver($driver)->redirect(); } /** * Handle the social registration process on callback. * @param $socialDriver * @return \Laravel\Socialite\Contracts\User * @throws SocialDriverNotConfigured * @throws UserRegistrationException */ public function handleRegistrationCallback($socialDriver) { $driver = $this->validateDriver($socialDriver); // Get user details from social driver $socialUser = $this->socialite->driver($driver)->user(); // Check social account has not already been used if ($this->socialAccount->where('driver_id', '=', $socialUser->getId())->exists()) { throw new UserRegistrationException('This ' . $socialDriver . ' account is already in use, Try logging in via the ' . $socialDriver . ' option.', '/login'); } if ($this->userRepo->getByEmail($socialUser->getEmail())) { $email = $socialUser->getEmail(); throw new UserRegistrationException('The email ' . $email . ' is already in use. If you already have an account you can connect your ' . $socialDriver . ' account from your profile settings.', '/login'); } return $socialUser; } /** * Handle the login process on a oAuth callback. * @param $socialDriver * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector * @throws SocialDriverNotConfigured * @throws SocialSignInException */ public function handleLoginCallback($socialDriver) { $driver = $this->validateDriver($socialDriver); // Get user details from social driver $socialUser = $this->socialite->driver($driver)->user(); $socialId = $socialUser->getId(); // Get any attached social accounts or users $socialAccount = $this->socialAccount->where('driver_id', '=', $socialId)->first(); $user = $this->userRepo->getByEmail($socialUser->getEmail()); $isLoggedIn = auth()->check(); $currentUser = auth()->user(); // When a user is not logged in and a matching SocialAccount exists, // Simply log the user into the application. if (!$isLoggedIn && $socialAccount !== null) { return $this->logUserIn($socialAccount->user); } // When a user is logged in but the social account does not exist, // Create the social account and attach it to the user & redirect to the profile page. if ($isLoggedIn && $socialAccount === null) { $this->fillSocialAccount($socialDriver, $socialUser); $currentUser->socialAccounts()->save($this->socialAccount); session()->flash('success', title_case($socialDriver) . ' account was successfully attached to your profile.'); return redirect($currentUser->getEditUrl()); } // When a user is logged in and the social account exists and is already linked to the current user. if ($isLoggedIn && $socialAccount !== null && $socialAccount->user->id === $currentUser->id) { session()->flash('error', 'This ' . title_case($socialDriver) . ' account is already attached to your profile.'); return redirect($currentUser->getEditUrl()); } // When a user is logged in, A social account exists but the users do not match. // Change the user that the social account is assigned to. if ($isLoggedIn && $socialAccount !== null && $socialAccount->user->id != $currentUser->id) { session()->flash('success', 'This ' . title_case($socialDriver) . ' account is already used by another user.'); return redirect($currentUser->getEditUrl()); } // Otherwise let the user know this social account is not used by anyone. $message = 'This ' . $socialDriver . ' account is not linked to any users. Please attach it in your profile settings'; if (setting('registration-enabled')) { $message .= ' or, If you do not yet have an account, You can register an account using the ' . $socialDriver . ' option'; } throw new SocialSignInException($message . '.', '/login'); } private function logUserIn($user) { auth()->login($user); return redirect('/'); } /** * Ensure the social driver is correct and supported. * * @param $socialDriver * @return string * @throws SocialDriverNotConfigured */ private function validateDriver($socialDriver) { $driver = trim(strtolower($socialDriver)); if (!in_array($driver, $this->validSocialDrivers)) abort(404, 'Social Driver Not Found'); if (!$this->checkDriverConfigured($driver)) throw new SocialDriverNotConfigured; return $driver; } /** * Check a social driver has been configured correctly. * @param $driver * @return bool */ private function checkDriverConfigured($driver) { $lowerName = strtolower($driver); $configPrefix = 'services.' . $lowerName . '.'; $config = [config($configPrefix . 'client_id'), config($configPrefix . 'client_secret'), config('services.callback_url')]; return !in_array(false, $config) && !in_array(null, $config); } /** * Gets the names of the active social drivers. * @return array */ public function getActiveDrivers() { $activeDrivers = []; foreach ($this->validSocialDrivers as $driverName) { if ($this->checkDriverConfigured($driverName)) { $activeDrivers[$driverName] = true; } } return $activeDrivers; } /** * @param string $socialDriver * @param \Laravel\Socialite\Contracts\User $socialUser * @return SocialAccount */ public function fillSocialAccount($socialDriver, $socialUser) { $this->socialAccount->fill([ 'driver' => $socialDriver, 'driver_id' => $socialUser->getId(), 'avatar' => $socialUser->getAvatar() ]); return $this->socialAccount; } /** * Detach a social account from a user. * @param $socialDriver * @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector */ public function detachSocialAccount($socialDriver) { session(); auth()->user()->socialAccounts()->where('driver', '=', $socialDriver)->delete(); session()->flash('success', title_case($socialDriver) . ' account successfully detached'); return redirect(auth()->user()->getEditUrl()); } }