initial commit

users/admin.py

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+from django.contrib import admin
+
+# Register your models here.

users/apps.py

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+from django.apps import AppConfig
+
+
+class UserProfilesConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'users'

users/models.py

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+from django.db import models
+
+# Create your models here.

users/serializers.py

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+from django.contrib.auth import authenticate
+from rest_framework import serializers
+from django.contrib.auth.models import User, Group
+
+
+class UserSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = User
+        fields = ["url", "username", "email", "password", "groups"]
+
+
+class GroupSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Group
+        fields = ["url", "name"]
+
+
+class AuthSerializer(serializers.Serializer):
+    username = serializers.CharField()
+    password = serializers.CharField(
+        style={"input_type": "password"}, trim_whitespace=False
+    )
+
+    def validate(self, attrs):
+        username = attrs.get("username")
+        password = attrs.get("password")
+
+        user = authenticate(
+            request=self.context.get("request"),
+            username=username,
+            password=password,
+        )
+
+        if not user:
+            msg = f"Invalid username or password."
+            raise serializers.ValidationError(msg, code="authentication")
+
+        attrs["user"] = user
+        return

users/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

users/urls.py

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+from django.urls import path
+
+from . import views
+
+urlpatterns = []

users/views.py

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+from django.contrib.auth import login
+from django.contrib.auth.models import Group, User, AnonymousUser
+from rest_framework import permissions, viewsets, status
+from knox.auth import TokenAuthentication
+from knox.views import LoginView as KnoxLoginView
+from rest_framework.authentication import BasicAuthentication
+from rest_framework.authtoken.serializers import AuthTokenSerializer
+from rest_framework.response import Response
+from rest_framework.decorators import api_view
+
+from users.serializers import GroupSerializer, UserSerializer
+
+
+class UserViewSet(viewsets.ModelViewSet):
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [permissions.IsAuthenticated]
+
+    queryset = User.objects.all().order_by("-date_joined")
+    serializer_class = UserSerializer
+
+
+class GroupViewSet(viewsets.ModelViewSet):
+    authentication_classes = [TokenAuthentication]
+    permission_classes = [permissions.IsAuthenticated]
+
+    queryset = Group.objects.all().order_by("name")
+    serializer_class = GroupSerializer
+
+
+@api_view(["POST"])
+def register(request):
+    user_data = UserSerializer(data=request.data)
+
+    if user_data.is_valid():
+        User.objects.create_user(**user_data.validated_data)
+        return Response(request.data, status=status.HTTP_201_CREATED)
+    else:
+        return Response([], status=status.HTTP_400_BAD_REQUEST)
+
+
+class LoginView(KnoxLoginView):
+    serializer_class = UserSerializer
+    permission_classes = [permissions.AllowAny]
+
+    def post(self, request, format=None):
+        serializer = AuthTokenSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+        user = serializer.validated_data["user"]
+        login(request, user)
+        return super(LoginView, self).post(request, format=None)