Merge pull request #33 from ansuha/master

Settings changes for google based authentication

Author: devmahmud

README.md

@@ -29,6 +29,46 @@ Django poll app is a full featured polling app. You have to register in this app
 <code>seeder.seed_all(30)</code>
 <p>Here 30 is a number of entry. You can use it as your own</p>
 
+<h2>Obtaining OAuth Client ID for Google:</h2>
+
+To use Google's OAuth authentication in your application, you need to obtain a client ID and client secret. Follow these steps to get your OAuth client ID for Google:
+
+1. **Go to the Google Cloud Console:**
+   - Navigate to [Google Cloud Console](https://console.cloud.google.com/).
+   - Sign in with your Google account.
+
+2. **Create a new project:**
+   - Click on the project dropdown menu at the top of the page.
+   - Click on "New Project" and follow the prompts to create a new project.
+
+3. **Enable the Google Identity service:**
+   - In the Google Cloud Console, navigate to "APIs & Services" > "Dashboard."
+   - Click on "Enable APIs and Services."
+   - Search for "Google Identity" or "Google+ API" and enable it for your project.
+
+4. **Create OAuth consent screen:**
+   - In the Google Cloud Console, navigate to "APIs & Services" > "OAuth consent screen."
+   - Fill in the required fields (like application name, user support email, etc.).
+   - Add scopes (permissions) your application requires.
+   - Save the consent screen information.
+
+5. **Create OAuth credentials:**
+   - In the Google Cloud Console, navigate to "APIs & Services" > "Credentials."
+   - Click on "Create Credentials" > "OAuth client ID."
+   - Select "Web application" as the application type.
+   - Enter a name for your OAuth client.
+   - Add authorized redirect URIs : `http://127.0.0.1:8000/complete/google-oauth2/`
+   - Click "Create."
+
+6. **Copy the client ID and client secret:**
+   - Once the OAuth client is created, you'll see your client ID and client secret.
+   - Copy these values and update following variables in settings.py
+
+        <code>SOCIAL_AUTH_GOOGLE_OAUTH2_KEY =  'your-client-id'
+        SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET ='your-client-secret'</code>
+
+For detailed instructions, refer to Google's documentation on [OAuth 2.0](https://developers.google.com/identity/protocols/oauth2).
+
 <h2> To run the program in local server use the following command </h2>
 <code>python manage.py runserver</code>
 

accounts/templates/accounts/login.html

@@ -3,6 +3,9 @@
 {% block content %}
     <div class="vh-100 d-flex justify-content-center align-items-center p-5" id="login-content">
         <div class="col-md-5 p-5 shadow-sm border rounded-5 border-primary bg-white">
+           
+            <a href="{% url 'social:begin' 'google-oauth2' %}">Login with Google</a>
+
             <h2 class="text-center mb-4 text-primary">Login</h2>
             {% if messages %}
                 <div class="messages">
@@ -38,4 +41,4 @@ <h2 class="text-center mb-4 text-primary">Login</h2>
             </div>
         </div>
     </div>
-{% endblock %}
+{% endblock %}

pollme/settings.py

@@ -31,6 +31,7 @@
 # Application definition
 
 INSTALLED_APPS = [
+    'social_django',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',
@@ -41,6 +42,11 @@
     'accounts.apps.AccountsConfig',
 ]
 
+AUTHENTICATION_BACKENDS = (
+    'social_core.backends.google.GoogleOAuth2',
+    'django.contrib.auth.backends.ModelBackend',
+)
+
 MIDDLEWARE = [
     'django.middleware.security.SecurityMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
@@ -64,6 +70,8 @@
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
+                'social_django.context_processors.backends',
+                'social_django.context_processors.login_redirect',
             ],
         },
     },
@@ -123,3 +131,8 @@
 STATICFILES_DIRS = [
     os.path.join(BASE_DIR, 'static')
 ]
+
+SOCIAL_AUTH_GOOGLE_OAUTH2_KEY =  'your-client-id'
+SOCIAL_AUTH_GOOGLE_OAUTH2_SECRET ='your-client-secret'
+SOCIAL_AUTH_URL_NAMESPACE = 'social'
+SOCIAL_AUTH_LOGIN_REDIRECT_URL = '/polls/list/user/'

pollme/urls.py

@@ -22,4 +22,5 @@
     path('admin/', admin.site.urls),
     path('accounts/', include('accounts.urls', namespace="accounts")),
     path('polls/', include('polls.urls', namespace="polls")),
+    path('', include('social_django.urls', namespace='social')),
 ]

requirements.txt

@@ -2,3 +2,4 @@ asgiref==3.3.1
 Django==3.1.14
 pytz==2020.5
 sqlparse==0.4.4
+social-auth-app-django>=0.4.0