# Django OAuth Toolkit

***

**1. Simple OAuth 2.0 Server**

```python
from django_oauth_toolkit.decorators import oauth2_required
from django_oauth_toolkit.models import Grant
from django.utils.decorators import method_decorator

class ProtectedView(View):
    @method_decorator(oauth2_required(scopes=["read:profile"]))
    def get(self, request, *args, **kwargs):
        # Access to the protected data
        grants = Grant.objects.all()
        return render(request, "protected.html", {"grants": grants})
```

**2. Authorize Endpoint**

```python
from django_oauth_toolkit.views import AuthorizeEndpointView

class CustomAuthorizeEndpointView(AuthorizeEndpointView):
    # Customization of the authorize endpoint
    def get_authorization_request(self, request, client_id):
        # Here you could validate the request or perform any additional checks
        return super().get_authorization_request(request, client_id)
```

**3. Django Admin Integration**

```python
from django.contrib import admin
from django_oauth_toolkit.admin import GrantAdmin

# Register the Grant model in Django Admin
admin.site.register(Grant, GrantAdmin)
```

**4. Token Endpoint**

```python
from django_oauth_toolkit.views import TokenEndpointView

class CustomTokenEndpointView(TokenEndpointView):
    # Customization of the token endpoint
    def post(self, request, *args, **kwargs):
        # Here you could validate the request or perform any additional checks
        response = super().post(request, *args, **kwargs)
        # Add custom headers, modify the response, etc.
        return response
```

**5. Introspection Endpoint**

```python
from django_oauth_toolkit.views import IntrospectEndpointView, IntrospectionToken

class CustomIntrospectionEndpointView(IntrospectEndpointView):
    # Customization of the introspection endpoint
    def post(self, request, *args, **kwargs):
        # Here you could validate the request or perform any additional checks
        response = super().post(request, *args, **kwargs)
        # Add custom headers, modify the response, etc.
        return response
```

**6. Revoke Endpoint**

```python
from django_oauth_toolkit.views import RevokeEndpointView

class CustomRevokeEndpointView(RevokeEndpointView):
    # Customization of the revoke endpoint
    def post(self, request, *args, **kwargs):
        # Here you could validate the request or perform any additional checks
        response = super().post(request, *args, **kwargs)
        # Add custom headers, modify the response, etc.
        return response
```

**7. OAuth 2.0 Client Registration**

```python
from django.contrib import admin
from django_oauth_toolkit.admin import ClientAdmin

# Register the Client model in Django Admin
admin.site.register(Client, ClientAdmin)
```

**8. Token Resource Server**

```python
from django_oauth_toolkit.validators import validate_access_token

def protected_api_view(request):
    # Validate the access token from the request header
    access_token = request.headers.get("Authorization").split()[1]
    is_valid, payload = validate_access_token(access_token)
    if is_valid:
        # Access to the protected data
        return HttpResponse("Access granted.")
    else:
        # Invalid access token, return an error response
        return HttpResponse("Invalid access token.", status=401)
```

**9. JWT Token Generation**

```python
from django_oauth_toolkit.auth import RemoteUserBackend
from django.contrib.auth.hashers import make_password

def generate_jwt_token(user):
    backend = RemoteUserBackend()
    password = make_password("my-password")  # Generate a strong password for authentication
    request = backend.authenticate(None, username=user.username, password=password)
    access_token = request.access_token
    return access_token
```

**10. Client Credentials Grant**

```python
from django_oauth_toolkit.auth import ClientCredentialsBackend
from django.contrib.auth.hashers import make_password

def client_credentials_authenticate(client_id, client_secret):
    backend = ClientCredentialsBackend()
    password = make_password(client_secret)  # Generate a strong password for authentication
    request = backend.authenticate(None, client_id=client_id, client_secret=password)
    access_token = request.access_token
    return access_token
```

**11. User Authorization Code Grant**

```python
from django_oauth_toolkit.auth import AuthorizationCodeBackend
from django.contrib.auth.hashers import make_password

def authorization_code_authenticate(code, client_id, user_id):
    backend = AuthorizationCodeBackend()
    password = make_password("my-password")  # Generate a strong password for authentication
    request = backend.authenticate(None, code=code, client_id=client_id, user_id=user_id)
    access_token = request.access_token
    return access_token
```

**12. Refresh Token Grant**

```python
from django_oauth_toolkit.auth import RefreshTokenBackend
from django.contrib.auth.hashers import make_password

def refresh_token_authenticate(refresh_token):
    backend = RefreshTokenBackend()
    password = make_password("my-password")  # Generate a strong password for authentication
    request = backend.authenticate(None, refresh_token=refresh_token)
    access_token = request.access_token
    return access_token
```

**13. Password Credentials Grant**

```python
from django_oauth_toolkit.auth import PasswordCredentialsBackend
from django.contrib.auth.hashers import make_password

def password_credentials_authenticate(username, password, client_id):
    backend = PasswordCredentialsBackend()
    password = make_password("my-password")  # Generate a strong password for authentication
    request = backend.authenticate(None, username=username, password=password, client_id=client_id)
    access_token = request.access_token
    return access_token
```

**14. JWT Claims Customizer**

```python
from django_oauth_toolkit.settings import oauth2_settings
from django_oauth_toolkit.utils import convert_user_to_dict

@oauth2_settings.JWT_CLAIMS_CUSTOMIZER
def jwt_claims_customizer(user, request, scope, **kwargs):
    user_dict = convert_user_to_dict(user)
    user_dict["extras"] = {"key": "value"}
    return user_dict
```

**15. Remote User Authentication**

```python
from django_oauth_toolkit.auth import RemoteUserBackend

def remote_user_authenticate(username_header="HTTP_REMOTE_USER", password_header=None):
    backend = RemoteUserBackend()
    request = backend.authenticate(None, username_header=username_header, password_header=password_header)
    access_token = request.access_token
    return access_token
```

**16. Social Authentication**

```python
from django_oauth_toolkit.auth import SocialAuthenticationBackend

def social_authenticate(provider, access_token, refresh_token, extra_data):
    backend = SocialAuthenticationBackend()
    request = backend.authenticate(None, provider=provider, access_token=access_token, refresh_token=refresh_token, extra_data=extra_data)
    access_token = request.access_token
    return access_token
```

**17. Aggregate Authentication**

```python
from django_oauth_toolkit.auth import AggregateAuthenticationBackend

def aggregate_authenticate(backends, username, password, client_id):
    backend = AggregateAuthenticationBackend()
    request = backend.authenticate(backends, username=username, password=password, client_id=client_id)
    access_token = request.access_token
    return access_token

```