Rewrite registration logic

Author: ron8mcr

docs/api_endpoints.rst

@@ -51,20 +51,9 @@ Registration
 - /rest-auth/registration/ (POST)
 
     - username
-    - password1
-    - password2
+    - password
     - email
 
-    .. note:: This endpoint is based on ``allauth.account.views.SignupView`` and uses the same form as in this view. To override fields you have to create custom Signup Form and define it in django settings:
-
-        .. code-block:: python
-
-            ACCOUNT_FORMS = {
-                'signup': 'path.to.custom.SignupForm'
-            }
-
-        See allauth documentation for more details.
-
 - /rest-auth/registration/verify-email/ (POST)
 
     - key

docs/configuration.rst

@@ -29,6 +29,14 @@ Configuration
             ...
         }
 
+- **REST_AUTH_REGISTRATION_SERIALIZERS**
+
+    You can define your custom serializers for registration endpoint.
+    Possible key values:
+
+        - REGISTER_SERIALIZER - serializer class in ``rest_auth.register.views.RegisterView``, default value ``rest_auth.register.serializers.RegisterSerializer``
+
+
 
 - **REST_SESSION_LOGIN** - Enable session login in Login API view (default: True)
 

rest_auth/registration/app_settings.py

@@ -0,0 +1,11 @@
+from django.conf import settings
+
+from rest_auth.registration.serializers import (
+    RegisterSerializer as DefaultRegisterSerializer)
+from ..utils import import_callable
+
+
+serializers = getattr(settings, 'REST_AUTH_REGISTER_SERIALIZERS', {})
+
+RegisterSerializer = import_callable(
+    serializers.get('REGISTER_SERIALIZER', DefaultRegisterSerializer))

rest_auth/registration/serializers.py

@@ -1,6 +1,15 @@
 from django.http import HttpRequest
 from django.conf import settings
 
+try:
+    from allauth.account import app_settings as allauth_settings
+    from allauth.utils import (email_address_exists,
+                               get_username_max_length)
+    from allauth.account.adapter import get_adapter
+    from allauth.account.utils import setup_user_email
+except ImportError:
+    raise ImportError('allauth needs to be added to INSTALLED_APPS.')
+
 from rest_framework import serializers
 from requests.exceptions import HTTPError
 # Import is needed only if we are using social login, in which
@@ -109,3 +118,44 @@ def validate(self, attrs):
         attrs['user'] = login.account.user
 
         return attrs
+
+
+class RegisterSerializer(serializers.Serializer):
+    username = serializers.CharField(
+                               max_length=get_username_max_length(),
+                               min_length=allauth_settings.USERNAME_MIN_LENGTH,
+                               required=allauth_settings.USERNAME_REQUIRED)
+    email = serializers.EmailField(required=allauth_settings.EMAIL_REQUIRED)
+    password = serializers.CharField(required=True, write_only=True)
+
+    def validate_username(self, username):
+        username = get_adapter().clean_username(username)
+        return username
+
+    def validate_email(self, email):
+        email = get_adapter().clean_email(email)
+        if allauth_settings.UNIQUE_EMAIL:
+            if email and email_address_exists(email):
+                raise serializers.ValidationError(
+                    "A user is already registered with this e-mail address.")
+        return email
+
+    def validate_password(self, password):
+        return get_adapter().clean_password(password)
+
+    def custom_signup(self, request, user):
+        pass
+
+    def save(self, request):
+        adapter = get_adapter()
+        user = adapter.new_user(request)
+        self.cleaned_data = self.validated_data
+        self.cleaned_data['password1'] = self.cleaned_data['password']
+        adapter.save_user(request, user, self)
+        self.custom_signup(request, user)
+        setup_user_email(request, user, [])
+        return user
+
+
+class VerifyEmailSerializer(serializers.Serializer):
+    key = serializers.CharField()

rest_auth/registration/views.py

@@ -1,77 +1,41 @@
-from django.http import HttpRequest
 from rest_framework.views import APIView
 from rest_framework.response import Response
 from rest_framework.permissions import AllowAny
+from rest_framework.generics import CreateAPIView
 from rest_framework import status
 from rest_framework.authtoken.models import Token
+from rest_framework.exceptions import MethodNotAllowed
 
-from allauth.account.views import SignupView, ConfirmEmailView
+from allauth.account.views import ConfirmEmailView
 from allauth.account.utils import complete_signup
-from allauth.account import app_settings
+from allauth.account import app_settings as allauth_settings
 
 from rest_auth.app_settings import TokenSerializer
-from rest_auth.registration.serializers import SocialLoginSerializer
+from rest_auth.registration.serializers import (SocialLoginSerializer,
+                                                VerifyEmailSerializer)
+from .app_settings import RegisterSerializer
 from rest_auth.views import LoginView
 
 
-class RegisterView(APIView, SignupView):
-    """
-    Accepts the credentials and creates a new user
-    if user does not exist already
-    Return the REST Token if the credentials are valid and authenticated.
-    Calls allauth complete_signup method
-
-    Accept the following POST parameters: username, email, password
-    Return the REST Framework Token Object's key.
-    """
-
-    permission_classes = (AllowAny,)
-    allowed_methods = ('POST', 'OPTIONS', 'HEAD')
-    token_model = Token
-    serializer_class = TokenSerializer
-
-    def get(self, *args, **kwargs):
-        return Response({}, status=status.HTTP_405_METHOD_NOT_ALLOWED)
-
-    def put(self, *args, **kwargs):
-        return Response({}, status=status.HTTP_405_METHOD_NOT_ALLOWED)
-
-    def form_valid(self, form):
-        self.user = form.save(self.request)
-        self.token, created = self.token_model.objects.get_or_create(
-            user=self.user
-        )
-        if isinstance(self.request, HttpRequest):
-            request = self.request
-        else:
-            request = self.request._request
-        return complete_signup(request, self.user,
-                               app_settings.EMAIL_VERIFICATION,
-                               self.get_success_url())
-
-    def get_form_kwargs(self, *args, **kwargs):
-        kwargs = super(RegisterView, self).get_form_kwargs(*args, **kwargs)
-        kwargs['data'] = self.request.data
-        return kwargs
-
-    def post(self, request, *args, **kwargs):
-        self.initial = {}
-        form_class = self.get_form_class()
-        self.form = self.get_form(form_class)
-        if self.form.is_valid():
-            self.form_valid(self.form)
-            return self.get_response()
-        else:
-            return self.get_response_with_errors()
+class RegisterView(CreateAPIView):
+    serializer_class = RegisterSerializer
 
-    def get_response(self):
-        # serializer = self.user_serializer_class(instance=self.user)
-        serializer = self.serializer_class(instance=self.token,
-                                           context={'request': self.request})
-        return Response(serializer.data, status=status.HTTP_201_CREATED)
+    def create(self, request, *args, **kwargs):
+        serializer = self.get_serializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        user = self.perform_create(serializer)
+        headers = self.get_success_headers(serializer.data)
+        return Response(TokenSerializer(user.auth_token).data,
+                        status=status.HTTP_201_CREATED,
+                        headers=headers)
 
-    def get_response_with_errors(self):
-        return Response(self.form.errors, status=status.HTTP_400_BAD_REQUEST)
+    def perform_create(self, serializer):
+        user = serializer.save(self.request)
+        Token.objects.get_or_create(user=user)
+        complete_signup(self.request._request, user,
+                        allauth_settings.EMAIL_VERIFICATION,
+                        '/')
+        return user
 
 
 class VerifyEmailView(APIView, ConfirmEmailView):
@@ -80,10 +44,12 @@ class VerifyEmailView(APIView, ConfirmEmailView):
     allowed_methods = ('POST', 'OPTIONS', 'HEAD')
 
     def get(self, *args, **kwargs):
-        return Response({}, status=status.HTTP_405_METHOD_NOT_ALLOWED)
+        raise MethodNotAllowed('GET')
 
     def post(self, request, *args, **kwargs):
-        self.kwargs['key'] = self.request.data.get('key', '')
+        serializer = VerifyEmailSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        self.kwargs['key'] = serializer.validated_data['key']
         confirmation = self.get_object()
         confirmation.confirm(self.request)
         return Response({'message': 'ok'}, status=status.HTTP_200_OK)