app/Helpers/ConfigHelper.php

@@ -106,6 +106,8 @@ class ConfigHelper
             '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,
@@ -123,6 +125,7 @@ class ConfigHelper
             'smtp_port' => 25,
             'smtp_username' => '',
             'social_facebook_login' => false,
+            'social_google_login' => false,
             'social_twitter_login' => false,
             'social_user_profiles' => false,
             'theme' => 'default',

app/Http/Controllers/Admin/DefaultController.php

@@ -39,6 +39,7 @@ class DefaultController extends Controller
         $this->passwordSettingKeys = [
             'smtp_password',
             'facebook_app_secret',
+            'google_app_secret',
             'twitter_app_secret'
         ];
     }
@@ -230,6 +231,7 @@ class DefaultController extends Controller
             'restrict_original_download',
             'smtp_encryption',
             'social_facebook_login',
+            'social_google_login',
             'social_twitter_login',
             'social_user_profiles'
         ];
@@ -239,6 +241,8 @@ class DefaultController extends Controller
             'date_format',
             'facebook_app_id',
             'facebook_app_secret',
+            'google_app_id',
+            'google_app_secret',
             'sender_address',
             'sender_name',
             'smtp_server',

app/Http/Controllers/Auth/LoginController.php

@@ -10,6 +10,7 @@ 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;
 
@@ -128,6 +129,17 @@ class LoginController extends Controller
         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.
      *
@@ -152,6 +164,19 @@ class LoginController extends Controller
         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', $googleUser);
+    }
+
     /**
      * Obtain the user information from Twitter.
      *
@@ -216,19 +241,30 @@ class LoginController extends Controller
             'facebook',
             function ($app) use ($socialite) {
                 $config = [
-                    'client_id' => UserConfig::get('facebook_app_id'),
-                    'client_secret' => decrypt(UserConfig::get('facebook_app_secret')),
+                    '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) {
                 $config = [
-                    'identifier' => UserConfig::get('twitter_app_id'),
-                    'secret' => decrypt(UserConfig::get('twitter_app_secret')),
+                    'identifier' => trim(UserConfig::get('twitter_app_id')),
+                    'secret' => trim(decrypt(UserConfig::get('twitter_app_secret'))),
                     'callback_uri' => route('login_callback.twitter')
                 ];
                 return new TwitterProvider($app['request'], new TwitterServer($config));

app/User.php

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

@@ -212,6 +212,7 @@ 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_google' => 'Google',
         'social_tab' => 'Social',
         'social_twitter' => 'Twitter'
     ],

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_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',

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

@@ -418,6 +418,51 @@
                                         </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/partials/social_login_providers.blade.php

@@ -5,4 +5,7 @@
     @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

@@ -77,6 +77,8 @@ Route::group(['prefix' => 'install'], function () {
 // 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');