Add create device authorization response method

This method calls the server's create_device_authorization_response method
(https://datatracker.ietf.org/doc/html/rfc8628#section-3.2)

and is returns to the caller the information adhering to the rfc

Author: duzumaki

oauth2_provider/oauth2_backends.py

@@ -151,6 +151,16 @@ def create_authorization_response(self, request, scopes, credentials, allow):
         except oauth2.OAuth2Error as error:
             raise OAuthToolkitError(error=error, redirect_uri=credentials["redirect_uri"])
 
+    def create_device_authorization_response(self, request: HttpRequest):
+        uri, http_method, body, headers = self._extract_params(request)
+        try:
+            headers, body, status = self.server.create_device_authorization_response(
+                uri, http_method, body, headers
+            )
+            return headers, body, status
+        except OAuth2Error as exc:
+            return exc.headers, exc.json, exc.status_code
+
     def create_token_response(self, request):
         """
         A wrapper method that calls create_token_response on `server_class` instance.

oauth2_provider/views/mixins.py

@@ -2,7 +2,7 @@
 
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured, SuspiciousOperation
-from django.http import HttpResponseForbidden, HttpResponseNotFound
+from django.http import HttpRequest, HttpResponseForbidden, HttpResponseNotFound
 
 from ..exceptions import FatalClientError
 from ..scopes import get_scopes_backend
@@ -114,6 +114,20 @@ def create_authorization_response(self, request, scopes, credentials, allow):
         core = self.get_oauthlib_core()
         return core.create_authorization_response(request, scopes, credentials, allow)
 
+    def create_device_authorization_response(self, request: HttpRequest):
+        """
+        A wrapper method that calls create_device_authorization_response on `server_class`
+        instance.
+        :param request: The current django.http.HttpRequest object
+        """
+        oauth2_settings.EXTRA_SERVER_KWARGS = {
+            "verification_uri": oauth2_settings.OAUTH_DEVICE_VERIFICATION_URI,
+            "interval": oauth2_settings.DEVICE_FLOW_INTERVAL,
+            "user_code_generator": oauth2_settings.OAUTH_DEVICE_USER_CODE_GENERATOR,
+        }
+        core = self.get_oauthlib_core()
+        return core.create_device_authorization_response(request)
+
     def create_token_response(self, request):
         """
         A wrapper method that calls create_token_response on `server_class` instance.