app/Helpers/ConfigHelper.php

@@ -123,8 +123,11 @@ class ConfigHelper
             'smtp_port' => 25,
             'smtp_username' => '',
             'social_facebook_login' => false,
+            'social_twitter_login' => false,
             'social_user_profiles' => false,
-            'theme' => 'default'
+            'theme' => 'default',
+            'twitter_app_id' => '',
+            'twitter_app_secret' => '',
         );
     }
 
@@ -171,4 +174,10 @@ class ConfigHelper
 
         return $config;
     }
+
+    public function isSocialMediaLoginEnabled()
+    {
+        return  $this->get('social_facebook_login') ||
+                $this->get('social_twitter_login');
+    }
 }

app/Http/Controllers/Admin/DefaultController.php

@@ -38,7 +38,8 @@ class DefaultController extends Controller
 
         $this->passwordSettingKeys = [
             'smtp_password',
-            'facebook_app_secret'
+            'facebook_app_secret',
+            'twitter_app_secret'
         ];
     }
 
@@ -229,6 +230,7 @@ class DefaultController extends Controller
             'restrict_original_download',
             'smtp_encryption',
             'social_facebook_login',
+            'social_twitter_login',
             'social_user_profiles'
         ];
         $updateKeys = [
@@ -244,6 +246,8 @@ class DefaultController extends Controller
             'smtp_username',
             'smtp_password',
             'theme',
+            'twitter_app_id',
+            'twitter_app_secret',
             'recaptcha_site_key',
             'recaptcha_secret_key',
             'analytics_code'

app/Http/Controllers/Auth/LoginController.php

@@ -8,7 +8,9 @@ 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 League\OAuth1\Client\Server\Twitter as TwitterServer;
 use Socialite;
 
 class LoginController extends Controller
@@ -126,6 +128,17 @@ class LoginController extends Controller
         return $socialite->driver('facebook')->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.
      *
@@ -192,6 +205,17 @@ class LoginController extends Controller
                 return $socialite->buildProvider(FacebookProvider::class, $config);
             }
         );
+        $socialite->extend(
+            'twitter',
+            function ($app) use ($socialite) {
+                $config = [
+                    'identifier' => UserConfig::get('twitter_app_id'),
+                    'secret' => decrypt(UserConfig::get('twitter_app_secret')),
+                    'callback_uri' => route('login_callback.twitter')
+                ];
+                return new TwitterProvider($app['request'], new TwitterServer($config));
+            }
+        );
 
         return $socialite;
     }

resources/lang/en/admin.php

@@ -212,7 +212,8 @@ return [
         '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_facebook' => 'Facebook',
-        'social_tab' => 'Social'
+        '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/forms.php

@@ -49,6 +49,10 @@ return [
     '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_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

@@ -327,6 +327,7 @@
 
                                 <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>
@@ -339,7 +340,7 @@
                                             </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', UserConfig::get('social_facebook_login')))checked="checked"@endif>
+                                                <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')
@@ -358,7 +359,7 @@
                                             </div>
 
                                             <div class="form-group mt-3">
-                                                <label class="form-control-label" for="facebook-app-id">@lang('forms.settings_social_facebook_app_secret')</label>
+                                                <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'))
@@ -370,6 +371,53 @@
                                         </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>
                             </div>
                         </div>
 

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

@@ -1,8 +1,8 @@
 @if (!$is_sso)
-    <p>@lang('auth.social_login')</p>
+    @if (UserConfig::isSocialMediaLoginEnabled())
-    <p class="text-center">
+        <p>@lang('auth.social_login')</p>
-        <a href="{{ route('login.facebook') }}"><i class="fa fa-facebook fa-fw" style="font-size: xx-large;"></i></a>
+        @include(Theme::viewName('partials.social_login_providers'))
-    </p>
+    @endif
 
     <p class="mt-5 mb-4">@lang('auth.email_password_login')</p>
 @else

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

@@ -1,8 +1,8 @@
 @if (!$is_sso)
-    <p>@lang('auth.social_register')</p>
+    @if (UserConfig::isSocialMediaLoginEnabled())
-    <p class="text-center">
+        <p>@lang('auth.social_register')</p>
-        <a href="{{ route('login.facebook') }}"><i class="fa fa-facebook fa-fw" style="font-size: xx-large;"></i></a>
+        @include(Theme::viewName('partials.social_login_providers'))
-    </p>
+    @endif
 
     <p class="mt-5 mb-4">@lang('auth.email_password_register')</p>
 @else

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

@@ -0,0 +1,8 @@
+<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
+</p>

routes/web.php

@@ -78,6 +78,8 @@ Route::group(['prefix' => 'install'], function () {
 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/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