app/Helpers/ConfigHelper.php

@@ -104,6 +104,10 @@ class ConfigHelper
             'date_format' => $this->allowedDateFormats()[0],
             'default_album_view' => $this->allowedAlbumViews()[0],
             'enable_visitor_hits' => false,
+            'facebook_app_id' => '',
+            'facebook_app_secret' => '',
+            'google_app_id' => '',
+            'google_app_secret' => '',
             'hotlink_protection' => false,
             'items_per_page' => 12,
             'items_per_page_admin' => 10,
@@ -120,8 +124,13 @@ class ConfigHelper
             'smtp_password' => '',
             'smtp_port' => 25,
             'smtp_username' => '',
+            'social_facebook_login' => false,
+            'social_google_login' => false,
+            'social_twitter_login' => false,
             'social_user_profiles' => false,
-            'theme' => 'default'
+            'theme' => 'default',
+            'twitter_app_id' => '',
+            'twitter_app_secret' => '',
         );
     }
 
@@ -168,4 +177,10 @@ class ConfigHelper
 
         return $config;
     }
+
+    public function isSocialMediaLoginEnabled()
+    {
+        return  $this->get('social_facebook_login') ||
+                $this->get('social_twitter_login');
+    }
 }

app/Http/Controllers/Admin/DefaultController.php

@@ -29,10 +29,19 @@ use Illuminate\Support\Facades\View;
 
 class DefaultController extends Controller
 {
+    private $passwordSettingKeys;
+
     public function __construct()
     {
         $this->middleware('auth');
         View::share('is_admin', true);
+
+        $this->passwordSettingKeys = [
+            'smtp_password',
+            'facebook_app_secret',
+            'google_app_secret',
+            'twitter_app_secret'
+        ];
     }
 
     public function about()
@@ -211,9 +220,6 @@ class DefaultController extends Controller
     {
         $this->authorizeAccessToAdminPanel('admin:configure');
 
-        $passwordKeys = [
-            'smtp_password'
-        ];
         $checkboxKeys = [
             'albums_menu_parents_only',
             'allow_self_registration',
@@ -224,12 +230,19 @@ class DefaultController extends Controller
             'require_email_verification',
             'restrict_original_download',
             'smtp_encryption',
+            'social_facebook_login',
+            'social_google_login',
+            'social_twitter_login',
             'social_user_profiles'
         ];
         $updateKeys = [
             'albums_menu_number_items',
             'app_name',
             'date_format',
+            'facebook_app_id',
+            'facebook_app_secret',
+            'google_app_id',
+            'google_app_secret',
             'sender_address',
             'sender_name',
             'smtp_server',
@@ -237,6 +250,8 @@ class DefaultController extends Controller
             'smtp_username',
             'smtp_password',
             'theme',
+            'twitter_app_id',
+            'twitter_app_secret',
             'recaptcha_site_key',
             'recaptcha_secret_key',
             'analytics_code'
@@ -261,7 +276,7 @@ class DefaultController extends Controller
             }
 
             $config->value = $request->request->get($key);
-            if (in_array($key, $passwordKeys) && strlen($config->value) > 0)
+            if (in_array($key, $this->passwordSettingKeys) && strlen($config->value) > 0)
             {
                 $config->value = encrypt($config->value);
             }
@@ -310,6 +325,14 @@ class DefaultController extends Controller
             $dateFormatsLookup[$dateFormat] = date($dateFormat);
         }
 
+        foreach ($this->passwordSettingKeys as $passwordSettingKey)
+        {
+            if (isset($config[$passwordSettingKey]) && !empty($config[$passwordSettingKey]))
+            {
+                $config[$passwordSettingKey] = decrypt($config[$passwordSettingKey]);
+            }
+        }
+
         $themeNamesLookup = UserConfig::allowedThemeNames();
 
         return Theme::render('admin.settings', [

app/Http/Controllers/Auth/LoginController.php

@@ -3,9 +3,16 @@
 namespace App\Http\Controllers\Auth;
 
 use App\Facade\Theme;
+use App\Facade\UserConfig;
 use App\Http\Controllers\Controller;
+use App\User;
 use Illuminate\Foundation\Auth\AuthenticatesUsers;
 use Illuminate\Http\Request;
+use Laravel\Socialite\One\TwitterProvider;
+use Laravel\Socialite\Two\FacebookProvider;
+use Laravel\Socialite\Two\GoogleProvider;
+use League\OAuth1\Client\Server\Twitter as TwitterServer;
+use Socialite;
 
 class LoginController extends Controller
 {
@@ -39,6 +46,31 @@ class LoginController extends Controller
         $this->middleware('guest', ['except' => 'logout']);
     }
 
+    protected function attemptLogin(Request $request)
+    {
+        $isSuccessful = $this->guard()->attempt($this->credentials($request));
+
+        if ($isSuccessful)
+        {
+            /** @var User $user */
+            $user = $this->guard()->user();
+
+            // Update the social media ID if successful login and it was referred by the SSO provider
+            $loginData = $request->getSession()->get('ssoLoginData');
+            if (!is_null($loginData))
+            {
+                unset($loginData['name']);
+                unset($loginData['email']);
+                $user->fill($loginData);
+                $user->save();
+
+                $request->getSession()->remove('ssoLoginData');
+            }
+        }
+
+        return $isSuccessful;
+    }
+
     protected function credentials(Request $request)
     {
         $result = $request->only($this->username(), 'password');
@@ -58,7 +90,187 @@ class LoginController extends Controller
     {
         return Theme::render('auth.v2_unified', [
             'active_tab' => 'login',
-            'info' => $request->session()->get('info')
+            'info' => $request->session()->get('info'),
+            'is_sso' => false
         ]);
     }
+
+    /**
+     * Show the application's login form (for a social media-linked account).
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function showLoginFormSso(Request $request)
+    {
+        // Social media login info
+        $loginData = $request->getSession()->get('ssoLoginData');
+        if (is_null($loginData))
+        {
+            // No SSO data in session, use the normal login screen
+            return redirect(route('login'));
+        }
+
+        return Theme::render('auth.v2_unified', [
+            'active_tab' => 'login',
+            'info' => $request->session()->get('info'),
+            'is_sso' => true,
+            'login_data' => $loginData
+        ]);
+    }
+
+    /**
+     * Redirect the user to the Facebook authentication page.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function redirectToFacebook()
+    {
+        $socialite = $this->setSocialiteConfigs();
+        return $socialite->driver('facebook')->redirect();
+    }
+
+    /**
+     * Redirect the user to the Google authentication page.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function redirectToGoogle()
+    {
+        $socialite = $this->setSocialiteConfigs();
+        return $socialite->driver('google')->redirect();
+    }
+
+    /**
+     * Redirect the user to the Twitter authentication page.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function redirectToTwitter()
+    {
+        $socialite = $this->setSocialiteConfigs();
+        return $socialite->driver('twitter')->redirect();
+    }
+
+    /**
+     * Obtain the user information from Facebook.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function handleFacebookCallback(Request $request)
+    {
+        $socialite = $this->setSocialiteConfigs();
+        $facebookUser = $socialite->driver('facebook')->user();
+
+        return $this->processSocialMediaLogin($request, 'facebook_id', $facebookUser);
+    }
+
+    /**
+     * Obtain the user information from Google.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function handleGoogleCallback(Request $request)
+    {
+        $socialite = $this->setSocialiteConfigs();
+        $googleUser = $socialite->driver('google')->user();
+
+        return $this->processSocialMediaLogin($request, 'google_id', $googleUser);
+    }
+
+    /**
+     * Obtain the user information from Twitter.
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function handleTwitterCallback(Request $request)
+    {
+        $socialite = $this->setSocialiteConfigs();
+        $twitterUser = $socialite->driver('twitter')->user();
+
+        return $this->processSocialMediaLogin($request, 'twitter_id', $twitterUser);
+    }
+
+    private function processSocialMediaLogin(Request $request, $socialMediaIdField, $socialMediaUser)
+    {
+        $userBySocialMediaId = User::where($socialMediaIdField, $socialMediaUser->getId())->first();
+
+        if (!is_null($userBySocialMediaId))
+        {
+            // We have an existing user for this Facebook ID - log them in
+            $this->guard()->login($userBySocialMediaId);
+            return redirect(route('home'));
+        }
+
+        // Some providers (*cough*Twitter*cough*) don't give e-mail addresses without explicit permission/additional
+        // verification
+        if (!is_null($socialMediaUser->email))
+        {
+            $userByEmailAddress = User::where('email', $socialMediaUser->getEmail())->first();
+
+            if (!is_null($userByEmailAddress))
+            {
+                // We have an existing user with the e-mail address associated with the Facebook account
+                // Prompt for the password for that account
+                $request->getSession()->put('ssoLoginData', [
+                    'name' => $socialMediaUser->getName(),
+                    'email' => $socialMediaUser->getEmail(),
+                    $socialMediaIdField => $socialMediaUser->getId(),
+                    'is_activated' => true
+                ]);
+
+                return redirect(route('auth.login_sso'));
+            }
+        }
+
+        // We don't have an existing user - prompt for registration
+        $request->getSession()->put('ssoRegisterData', [
+            'name' => $socialMediaUser->getName(),
+            'email' => $socialMediaUser->getEmail(),
+            $socialMediaIdField => $socialMediaUser->getId(),
+            'is_activated' => true
+        ]);
+
+        return redirect(route('auth.register_sso'));
+    }
+
+    private function setSocialiteConfigs()
+    {
+        // Force Socialite to use our config from the database instead of hard-coded in config/services.php
+        $socialite = app()->make(\Laravel\Socialite\Contracts\Factory::class);
+        $socialite->extend(
+            'facebook',
+            function ($app) use ($socialite) {
+                $config = [
+                    'client_id' => trim(UserConfig::get('facebook_app_id')),
+                    'client_secret' => trim(decrypt(UserConfig::get('facebook_app_secret'))),
+                    'redirect' => route('login_callback.facebook')
+                ];
+                return $socialite->buildProvider(FacebookProvider::class, $config);
+            }
+        );
+        $socialite->extend(
+            'google',
+            function ($app) use ($socialite) {
+                $config = [
+                    'client_id' => trim(UserConfig::get('google_app_id')),
+                    'client_secret' => trim(decrypt(UserConfig::get('google_app_secret'))),
+                    'redirect' => route('login_callback.google')
+                ];
+                return $socialite->buildProvider(GoogleProvider::class, $config);
+            }
+        );
+        $socialite->extend(
+            'twitter',
+            function ($app) use ($socialite) {
+                $config = [
+                    'identifier' => trim(UserConfig::get('twitter_app_id')),
+                    'secret' => trim(decrypt(UserConfig::get('twitter_app_secret'))),
+                    'callback_uri' => route('login_callback.twitter')
+                ];
+                return new TwitterProvider($app['request'], new TwitterServer($config));
+            }
+        );
+
+        return $socialite;
+    }
 }

app/Http/Controllers/Auth/RegisterController.php

@@ -85,25 +85,22 @@ class RegisterController extends Controller
      */
     protected function create(array $data)
     {
-        $activationData = [
+        if (!isset($data['is_activated']))
-            'is_activated' => true
+        {
-        ];
+            $data['is_activated'] = true;
 
             if (UserConfig::get('require_email_verification'))
             {
-            $activationData['is_activated'] = false;
+                $data['is_activated'] = false;
-            $activationData['activation_token'] = MiscHelper::randomString();
+                $data['activation_token'] = MiscHelper::randomString();
+            }
         }
 
-        return User::create(array_merge(
+        $data['password'] = bcrypt($data['password']);
-            [
+        $data['is_admin'] = false;
-                'name' => $data['name'],
+        unset($data['password_confirmation']);
-                'email' => $data['email'],
+
-                'password' => bcrypt($data['password']),
+        return User::create($data);
-                'is_admin' => false
-            ],
-            $activationData
-        ));
     }
 
     public function register(Request $request)
@@ -115,8 +112,18 @@ class RegisterController extends Controller
 
         $this->validator($request)->validate();
 
+        $userData = $request->all();
+
+        // Social media login info
+        $registerData = $request->getSession()->get('ssoRegisterData');
+        if (!is_null($registerData))
+        {
+            $userData = array_merge($registerData, $userData);
+            $request->getSession()->remove('ssoRegisterData');
+        }
+
         /** @var User $user */
-        $user = $this->create($request->all());
+        $user = $this->create($userData);
 
         if ($user->is_activated)
         {
@@ -137,7 +144,7 @@ class RegisterController extends Controller
      *
      * @return \Illuminate\Http\Response
      */
-    public function showRegistrationForm()
+    public function showRegistrationForm(Request $request)
     {
         if (!UserConfig::get('allow_self_registration'))
         {
@@ -145,7 +152,35 @@ class RegisterController extends Controller
         }
 
         return Theme::render('auth.v2_unified', [
-            'active_tab' => 'register'
+            'active_tab' => 'register',
+            'is_sso' => false
+        ]);
+    }
+
+    /**
+     * Show the application registration form (for a social media-linked account).
+     *
+     * @return \Illuminate\Http\Response
+     */
+    public function showRegistrationFormSso(Request $request)
+    {
+        if (!UserConfig::get('allow_self_registration'))
+        {
+            return redirect(route('home'));
+        }
+
+        // Social media login info
+        $registerData = $request->getSession()->get('ssoRegisterData');
+        if (is_null($registerData))
+        {
+            // No SSO data in session, use the normal registration screen
+            return redirect(route('register'));
+        }
+
+        return Theme::render('auth.v2_unified', [
+            'active_tab' => 'register',
+            'is_sso' => true,
+            'register_data' => $registerData
         ]);
     }
 }

app/User.php

@@ -16,7 +16,7 @@ class User extends Authenticatable
      * @var array
      */
     protected $fillable = [
-        'name', 'email', 'password', 'is_admin', 'is_activated', 'activation_token', 'profile_alias'
+        'name', 'email', 'password', 'is_admin', 'is_activated', 'activation_token', 'enable_profile_page', 'profile_alias', 'facebook_id', 'twitter_id', 'google_id'
     ];
 
     /**

composer.json

@@ -9,7 +9,8 @@
         "laravel/framework": "5.5.*",
         "rackspace/php-opencloud": "^1.16",
         "doctrine/dbal": "^2.5",
-        "aws/aws-sdk-php": "^3.19"
+        "aws/aws-sdk-php": "^3.19",
+        "laravel/socialite": "^3.0"
     },
     "require-dev": {
         "filp/whoops": "~2.0",

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "2469338aa47d9194dc0c44bc788fb070",
+    "content-hash": "7e1113109ae57d549a01afba28bdb219",
     "packages": [
         {
             "name": "aws/aws-sdk-php",
@@ -948,6 +948,68 @@
             ],
             "time": "2018-03-30T13:29:30+00:00"
         },
+        {
+            "name": "laravel/socialite",
+            "version": "v3.0.12",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/laravel/socialite.git",
+                "reference": "b5f465847b1d637efa86bbfe2fc1c9d2bd12f60f"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/laravel/socialite/zipball/b5f465847b1d637efa86bbfe2fc1c9d2bd12f60f",
+                "reference": "b5f465847b1d637efa86bbfe2fc1c9d2bd12f60f",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/guzzle": "~6.0",
+                "illuminate/contracts": "~5.4",
+                "illuminate/http": "~5.4",
+                "illuminate/support": "~5.4",
+                "league/oauth1-client": "~1.0",
+                "php": ">=5.4.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "~0.9",
+                "phpunit/phpunit": "~4.0|~5.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.0-dev"
+                },
+                "laravel": {
+                    "providers": [
+                        "Laravel\\Socialite\\SocialiteServiceProvider"
+                    ],
+                    "aliases": {
+                        "Socialite": "Laravel\\Socialite\\Facades\\Socialite"
+                    }
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Laravel\\Socialite\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Taylor Otwell",
+                    "email": "taylor@laravel.com"
+                }
+            ],
+            "description": "Laravel wrapper around OAuth 1 & OAuth 2 libraries.",
+            "keywords": [
+                "laravel",
+                "oauth"
+            ],
+            "time": "2018-06-01T15:06:47+00:00"
+        },
         {
             "name": "league/flysystem",
             "version": "1.0.45",
@@ -1032,6 +1094,69 @@
             ],
             "time": "2018-05-07T08:44:23+00:00"
         },
+        {
+            "name": "league/oauth1-client",
+            "version": "1.7.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/thephpleague/oauth1-client.git",
+                "reference": "fca5f160650cb74d23fc11aa570dd61f86dcf647"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/thephpleague/oauth1-client/zipball/fca5f160650cb74d23fc11aa570dd61f86dcf647",
+                "reference": "fca5f160650cb74d23fc11aa570dd61f86dcf647",
+                "shasum": ""
+            },
+            "require": {
+                "guzzlehttp/guzzle": "^6.0",
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "mockery/mockery": "^0.9",
+                "phpunit/phpunit": "^4.0",
+                "squizlabs/php_codesniffer": "^2.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "League\\OAuth1\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Corlett",
+                    "email": "bencorlett@me.com",
+                    "homepage": "http://www.webcomm.com.au",
+                    "role": "Developer"
+                }
+            ],
+            "description": "OAuth 1.0 Client Library",
+            "keywords": [
+                "Authentication",
+                "SSO",
+                "authorization",
+                "bitbucket",
+                "identity",
+                "idp",
+                "oauth",
+                "oauth1",
+                "single sign on",
+                "trello",
+                "tumblr",
+                "twitter"
+            ],
+            "time": "2016-08-17T00:36:58+00:00"
+        },
         {
             "name": "mikemccabe/json-patch-php",
             "version": "0.1.0",

database/migrations/2018_08_13_211541_add_user_facebook_id_column.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddUserFacebookIdColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->string('facebook_id')->nullable(true);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->dropColumn('facebook_id');
+        });
+    }
+}

database/migrations/2018_08_16_132300_add_user_twitter_id_column.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddUserTwitterIdColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->string('twitter_id')->nullable(true);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->dropColumn('twitter_id');
+        });
+    }
+}

database/migrations/2018_08_17_133429_add_user_google_id_column.php

@@ -0,0 +1,34 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddUserGoogleIdColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->string('google_id')->nullable(true);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table)
+        {
+            $table->dropColumn('google_id');
+        });
+    }
+}

resources/lang/en/admin.php

@@ -211,7 +211,10 @@ return [
         'analytics_tab' => 'Analytics',
         'security_allow_self_registration' => 'Allow self-registration',
         'security_allow_self_registration_description' => 'With this option enabled, users can sign up for their own accounts. You can grant permissions to accounts to allow users to upload their own photos or manage yours.',
-        'social_tab' => 'Social'
+        'social_facebook' => 'Facebook',
+        'social_google' => 'Google',
+        'social_tab' => 'Social',
+        'social_twitter' => 'Twitter'
     ],
     'select_all_action' => 'Select all',
     'select_all_album_active' => 'Any action you select in the list below will apply to all photos in this album.',

resources/lang/en/auth.php

@@ -22,6 +22,11 @@ return [
         'Please click the link in this e-mail to activate your account.',
     'change_password_action' => 'Change password',
     'change_password_title' => 'Change your password',
+    'email_password_login' => 'Alternatively, login with your e-mail address and password:',
+    'email_password_login_sso' => 'The social media account you logged in with has not been used here before, however an account with the e-mail address already exists.',
+    'email_password_login_sso_2' => 'Please enter the password for this account to link your social media account to it.',
+    'email_password_register' => 'Alternatively, create an account using your e-mail address and a password:',
+    'email_password_register_sso' => 'Please confirm your name and set a password for your account:',
     'forgot_password_action' => 'Send Reset E-mail',
     'forgot_password_link' => 'Forgotten your password?',
     'forgot_password_title' => 'Send password reset link',
@@ -29,5 +34,7 @@ return [
     'recaptcha_failed_message' => 'The reCAPTCHA verfication failed. Please ensure you have completed the reCAPTCHA challenge and try again.',
     'register_page_title' => 'Create an account',
     'reset_password_action' => 'Reset Password',
-    'reset_password_title' => 'Reset your password'
+    'reset_password_title' => 'Reset your password',
+    'social_login' => 'Feeling sociable? Login with:',
+    'social_register' => 'Feeling sociable? Register with:'
 ];

resources/lang/en/forms.php

@@ -45,6 +45,18 @@ return [
     'settings_hotlink_protection_help' => 'With this option enabled, direct linking to images is not allowed. Photos can only be viewed through Blue Twilight.',
     'settings_restrict_originals_download' => 'Restrict access to original images',
     'settings_restrict_originals_download_help' => 'With this option enabled, only the photo\'s owner can download the original high-resolution images.',
+    'settings_social_facebook_app_id' => 'Facebook App ID:',
+    'settings_social_facebook_app_secret' => 'Facebook App Secret:',
+    'settings_social_facebook_login' => 'Allow login/registration with a Facebook account.',
+    'settings_social_facebook_login_help' => 'With this option enabled, users can register (if enabled) and login with their Facebook account.',
+    'settings_social_google_app_id' => 'Google App ID:',
+    'settings_social_google_app_secret' => 'Google App Secret:',
+    'settings_social_google_login' => 'Allow login/registration with a Google account.',
+    'settings_social_google_login_help' => 'With this option enabled, users can register (if enabled) and login with their Google account.',
+    'settings_social_twitter_app_id' => 'Twitter App ID:',
+    'settings_social_twitter_app_secret' => 'Twitter App Secret:',
+    'settings_social_twitter_login' => 'Allow login/registration with a Twitter account',
+    'settings_social_twitter_login_help' => 'With this option enabled, users can register (if enabled) and login with their Twitter account.',
     'settings_social_user_profiles' => 'Enable public user profiles',
     'settings_social_user_profiles_help' => 'Display public pages for users showing their albums, cameras used and activity.',
     'storage_access_key_label' => 'Access key:',

resources/views/themes/base/admin/settings.blade.php

@@ -324,6 +324,145 @@
                                         @lang('forms.settings_social_user_profiles_help')
                                     </label>
                                 </div>
+
+                                <hr class="mt-4 mb-4"/>
+
+                                {{-- Facebook --}}
+                                <div class="row">
+                                    <div class="col-2 col-sm-1">
+                                        <i class="fa fa-facebook fa-fw" style="font-size: xx-large;"></i>
+                                    </div>
+
+                                    <div class="col-10 col-sm-11">
+                                        <fieldset>
+                                            <legend class="mb-3">
+                                                 @lang('admin.settings.social_facebook')
+                                            </legend>
+
+                                            <div class="form-check">
+                                                <input type="checkbox" class="form-check-input" id="social-facebook-login" name="social_facebook_login" @if (old('social_facebook_login', $config['social_facebook_login']))checked="checked"@endif>
+                                                <label class="form-check-label" for="social-facebook-login">
+                                                    <strong>@lang('forms.settings_social_facebook_login')</strong><br/>
+                                                    @lang('forms.settings_social_facebook_login_help')
+                                                </label>
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="facebook-app-id">@lang('forms.settings_social_facebook_app_id')</label>
+                                                <input type="text" class="form-control{{ $errors->has('facebook_app_id') ? ' is-invalid' : '' }}" id="facebook-app-id" name="facebook_app_id" value="{{ old('facebook_app_id', $config['facebook_app_id']) }}">
+
+                                                @if ($errors->has('facebook_app_id'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('facebook_app_id') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="facebook-app-secret">@lang('forms.settings_social_facebook_app_secret')</label>
+                                                <input type="text" class="form-control{{ $errors->has('facebook_app_secret') ? ' is-invalid' : '' }}" id="facebook-app-secret" name="facebook_app_secret" value="{{ old('facebook_app_secret', $config['facebook_app_secret']) }}">
+
+                                                @if ($errors->has('facebook_app_secret'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('facebook_app_secret') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+                                        </fieldset>
+                                    </div>
+                                </div>
+
+                                <hr class="mt-4 mb-4"/>
+
+                                {{-- Twitter --}}
+                                <div class="row">
+                                    <div class="col-2 col-sm-1">
+                                        <i class="fa fa-twitter fa-fw" style="font-size: xx-large;"></i>
+                                    </div>
+
+                                    <div class="col-10 col-sm-11">
+                                        <fieldset>
+                                            <legend class="mb-3">
+                                                @lang('admin.settings.social_twitter')
+                                            </legend>
+
+                                            <div class="form-check">
+                                                <input type="checkbox" class="form-check-input" id="social-twitter-login" name="social_twitter_login" @if (old('social_twitter_login', $config['social_twitter_login']))checked="checked"@endif>
+                                                <label class="form-check-label" for="social-twitter-login">
+                                                    <strong>@lang('forms.settings_social_twitter_login')</strong><br/>
+                                                    @lang('forms.settings_social_twitter_login_help')
+                                                </label>
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="twitter-app-id">@lang('forms.settings_social_twitter_app_id')</label>
+                                                <input type="text" class="form-control{{ $errors->has('twitter_app_id') ? ' is-invalid' : '' }}" id="twitter-app-id" name="twitter_app_id" value="{{ old('twitter_app_id', $config['twitter_app_id']) }}">
+
+                                                @if ($errors->has('twitter_app_id'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('twitter_app_id') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="twitter-app-secret">@lang('forms.settings_social_twitter_app_secret')</label>
+                                                <input type="text" class="form-control{{ $errors->has('twitter_app_secret') ? ' is-invalid' : '' }}" id="twitter-app-secret" name="twitter_app_secret" value="{{ old('twitter_app_secret', $config['twitter_app_secret']) }}">
+
+                                                @if ($errors->has('twitter_app_secret'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('twitter_app_secret') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+                                        </fieldset>
+                                    </div>
+                                </div>
+
+                                {{-- Google+ --}}
+                                <div class="row">
+                                    <div class="col-2 col-sm-1">
+                                        <i class="fa fa-google fa-fw" style="font-size: xx-large;"></i>
+                                    </div>
+
+                                    <div class="col-10 col-sm-11">
+                                        <fieldset>
+                                            <legend class="mb-3">
+                                                @lang('admin.settings.social_google')
+                                            </legend>
+
+                                            <div class="form-check">
+                                                <input type="checkbox" class="form-check-input" id="social-google-login" name="social_google_login" @if (old('social_google_login', $config['social_google_login']))checked="checked"@endif>
+                                                <label class="form-check-label" for="social-google-login">
+                                                    <strong>@lang('forms.settings_social_google_login')</strong><br/>
+                                                    @lang('forms.settings_social_google_login_help')
+                                                </label>
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="google-app-id">@lang('forms.settings_social_google_app_id')</label>
+                                                <input type="text" class="form-control{{ $errors->has('google_app_id') ? ' is-invalid' : '' }}" id="google-app-id" name="google_app_id" value="{{ old('google_app_id', $config['google_app_id']) }}">
+
+                                                @if ($errors->has('google_app_id'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('google_app_id') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+
+                                            <div class="form-group mt-3">
+                                                <label class="form-control-label" for="google-app-secret">@lang('forms.settings_social_google_app_secret')</label>
+                                                <input type="text" class="form-control{{ $errors->has('google_app_secret') ? ' is-invalid' : '' }}" id="google-app-secret" name="google_app_secret" value="{{ old('google_app_secret', $config['google_app_secret']) }}">
+
+                                                @if ($errors->has('google_app_secret'))
+                                                    <div class="invalid-feedback">
+                                                        <strong>{{ $errors->first('google_app_secret') }}</strong>
+                                                    </div>
+                                                @endif
+                                            </div>
+                                        </fieldset>
+                                    </div>
+                                </div>
                             </div>
                         </div>
 

resources/views/themes/base/auth/v2_unified.blade.php

@@ -8,6 +8,7 @@
                 <div class="card">
                     <div class="card-header">
                         <ul class="nav nav-tabs card-header-tabs">
+                            @if (!$is_sso)
                                 <li class="nav-item">
                                     <a class="nav-link{{ $active_tab == 'login' ? ' active' : '' }}" href="{{ url('/login') }}">@lang('auth.login_page_title')</a>
                                 </li>
@@ -16,6 +17,17 @@
                                         <a class="nav-link{{ $active_tab == 'register' ? ' active' : '' }}" href="{{ url('/register') }}">@lang('auth.register_page_title')</a>
                                     </li>
                                 @endif
+                            @else
+                                @if ($active_tab == 'register')
+                                    <li class="nav-item">
+                                        <a class="nav-link active" href="{{ route('auth.register_sso') }}">@lang('auth.register_page_title')</a>
+                                    </li>
+                                @elseif ($active_tab == 'login')
+                                    <li class="nav-item">
+                                        <a class="nav-link active" href="{{ route('auth.login_sso') }}">@lang('auth.login_page_title')</a>
+                                    </li>
+                                @endif
+                            @endif
                         </ul>
                     </div>
                     <div class="card-body">

resources/views/themes/base/partials/login.blade.php

@@ -1,3 +1,15 @@
+@if (!$is_sso)
+    @if (UserConfig::isSocialMediaLoginEnabled())
+        <p>@lang('auth.social_login')</p>
+        @include(Theme::viewName('partials.social_login_providers'))
+    @endif
+
+    <p class="mt-5 mb-4">@lang('auth.email_password_login')</p>
+@else
+    <p>@lang('auth.email_password_login_sso')</p>
+    <p class="mb-5">@lang('auth.email_password_login_sso_2')</p>
+@endif
+
 <form role="form" method="POST" action="{{ url('/login') }}">
     {{ csrf_field() }}
 
@@ -5,7 +17,12 @@
         <label for="email" class="col-md-4 col-form-label text-md-right">@lang('forms.email_label')</label>
 
         <div class="col-md-6">
+            @if ($is_sso)
+                <input type="hidden" name="email" value="{{ $login_data['email'] }}">
+                <input id="email" type="email" class="form-control{{ $errors->has('email') ? ' is-invalid' : '' }}" value="{{ $login_data['email'] }}" readonly>
+            @else
                 <input id="email" type="email" class="form-control{{ $errors->has('email') ? ' is-invalid' : '' }}" name="email" value="{{ old('email') }}" autofocus>
+            @endif
 
             @if ($errors->has('email'))
                 <div class="invalid-feedback">
@@ -19,7 +36,7 @@
         <label for="password" class="col-md-4 col-form-label text-md-right">@lang('forms.password_label')</label>
 
         <div class="col-md-6">
-            <input id="password" type="password" class="form-control{{ $errors->has('password') ? ' is-invalid' : '' }}" name="password">
+            <input id="password" type="password" class="form-control{{ $errors->has('password') ? ' is-invalid' : '' }}" name="password"{{ $is_sso ? ' autofocus' : '' }}>
 
             @if ($errors->has('password'))
                 <div class="invalid-feedback">
@@ -29,6 +46,7 @@
         </div>
     </div>
 
+    @if (!$is_sso)
         <div class="form-group row">
             <div class="col-md-4"><!-- --></div>
             <div class="col-md-6">
@@ -39,6 +57,7 @@
                 </div>
             </div>
         </div>
+    @endif
 
     <div class="form-group row">
         <div class="col-md-2"><!-- --></div>

resources/views/themes/base/partials/register.blade.php

@@ -1,3 +1,14 @@
+@if (!$is_sso)
+    @if (UserConfig::isSocialMediaLoginEnabled())
+        <p>@lang('auth.social_register')</p>
+        @include(Theme::viewName('partials.social_login_providers'))
+    @endif
+
+    <p class="mt-5 mb-4">@lang('auth.email_password_register')</p>
+@else
+    <p class="mb-4">@lang('auth.email_password_register_sso')</p>
+@endif
+
 <form role="form" method="POST" action="{{ url('/register') }}">
     {{ csrf_field() }}
 
@@ -5,7 +16,7 @@
         <label for="name" class="col-md-4 col-form-label text-md-right">@lang('forms.realname_label')</label>
 
         <div class="col-md-6">
-            <input id="name" type="text" class="form-control{{ $errors->has('name') ? ' is-invalid' : '' }}" name="name" value="{{ old('name') }}" autofocus>
+            <input id="name" type="text" class="form-control{{ $errors->has('name') ? ' is-invalid' : '' }}" name="name" value="{{ old('name', $is_sso ? $register_data['name'] : '') }}"{{ !$is_sso ? ' autofocus' : '' }}>
 
             @if ($errors->has('name'))
                 <div class="invalid-feedback">
@@ -19,7 +30,12 @@
         <label for="email" class="col-md-4 col-form-label text-md-right">@lang('forms.email_label')</label>
 
         <div class="col-md-6">
-            <input id="email" type="email" class="form-control{{ $errors->has('email') ? ' is-invalid' : '' }}" name="email" value="{{ old('email') }}">
+            @if ($is_sso && !empty($register_data['email']))
+                <input type="hidden" name="email" value="{{ $register_data['email'] }}">
+                <input id="email" type="email" class="form-control" value="{{ $register_data['email'] }}" readonly>
+            @else
+                <input id="email" type="email" class="form-control{{ $errors->has('email') ? ' is-invalid' : '' }}" name="email" value="{{ old('email', $is_sso ? $register_data['email'] : '') }}"{{ $is_sso && empty($register_data['email']) ? ' autofocus' : '' }}>
+            @endif
 
             @if ($errors->has('email'))
                 <div class="invalid-feedback">
@@ -33,7 +49,7 @@
         <label for="password" class="col-md-4 col-form-label text-md-right">@lang('forms.password_label')</label>
 
         <div class="col-md-6">
-            <input id="password" type="password" class="form-control{{ $errors->has('password') ? ' is-invalid' : '' }}" name="password">
+            <input id="password" type="password" class="form-control{{ $errors->has('password') ? ' is-invalid' : '' }}" name="password"{{ $is_sso && !empty($register_data['email']) ? ' autofocus' : '' }}>
 
             @if ($errors->has('password'))
                 <div class="invalid-feedback">

resources/views/themes/base/partials/social_login_providers.blade.php

@@ -0,0 +1,11 @@
+<p class="text-center" style="font-size: xx-large;">
+    @if (UserConfig::get('social_facebook_login'))
+        <a href="{{ route('login.facebook') }}"><i class="fa fa-facebook fa-fw"></i></a>
+    @endif
+    @if (UserConfig::get('social_twitter_login'))
+        <a href="{{ route('login.twitter') }}"><i class="fa fa-twitter fa-fw"></i></a>
+    @endif
+    @if (UserConfig::get('social_google_login'))
+        <a href="{{ route('login.google') }}"><i class="fa fa-google fa-fw"></i></a>
+    @endif
+</p>

routes/web.php

@@ -74,6 +74,16 @@ Route::group(['prefix' => 'install'], function () {
     Route::post('/database', 'InstallController@database')->name('install.database');
 });
 
+// Social media SSO
+Route::get('login/facebook', 'Auth\LoginController@redirectToFacebook')->name('login.facebook');
+Route::get('login/facebook/callback', 'Auth\LoginController@handleFacebookCallback')->name('login_callback.facebook');
+Route::get('login/google', 'Auth\LoginController@redirectToGoogle')->name('login.google');
+Route::get('login/google/callback', 'Auth\LoginController@handleGoogleCallback')->name('login_callback.google');
+Route::get('login/sso', 'Auth\LoginController@showLoginFormSso')->name('auth.login_sso');
+Route::get('login/twitter', 'Auth\LoginController@redirectToTwitter')->name('login.twitter');
+Route::get('login/twitter/callback', 'Auth\LoginController@handleTwitterCallback')->name('login_callback.twitter');
+Route::get('register/sso', 'Auth\RegisterController@showRegistrationFormSso')->name('auth.register_sso');
+
 // Gallery
 Route::get('/', 'Gallery\DefaultController@index')->name('home');
 Route::get('/activate/{token}', 'Auth\ActivateController@activate')->name('auth.activate');