Django フレームワークにおける認証と認可の実践的なガイド

from django.contrib.auth import authenticate, login, logout

def login_view(request):
    if request.method == 'POST':
        username = request.POST.get('username')
        password = request.POST.get('password')
        user = authenticate(request, username=username, password=password)
        if user is not None:
            login(request, user)
            return redirect('home')
        else:
            return HttpResponse('登录失败')
    return render(request, 'login.html')

def logout_view(request):
    logout(request)
    return redirect('login')

from allauth.socialaccount.models import SocialAccount

def social_login(request):
    social_account = SocialAccount.objects.filter(user=request.user).first()
    if social_account is not None:
        return HttpResponse('已绑定社交账号')
    else:
        return redirect('socialaccount_signup')

from django.contrib.auth.decorators import login_required, permission_required

@login_required
def home(request):
    return render(request, 'home.html')

@permission_required('app.view_post')
def view_post(request, post_id):
    post = Post.objects.get(id=post_id)
    return render(request, 'post.html', {'post': post})

from django.contrib.auth.middleware import PermissionDeniedMiddleware

class CustomPermissionDeniedMiddleware(PermissionDeniedMiddleware):
    def process_exception(self, request, exception):
        if isinstance(exception, PermissionDenied):
            return HttpResponse('没有权限访问')