xword/home/views.py

from django.http import HttpResponse, HttpResponseBadRequest
from django.shortcuts import render
from django.views import View
from .forms import CrosswordForm
from .xword import extract_crossword


class HomeView(View):
    def get(self, request, *args, **kwargs):
        return render(request, 'home/index.html', {'form': CrosswordForm()})

    def post(self, request, *args, **kwargs):
        form = CrosswordForm(request.POST, request.FILES)
        if not form.is_valid():
            return HttpResponseBadRequest('Invalid form data')
        image, warning = extract_crossword(form.cleaned_data['file'].temporary_file_path())
        return HttpResponse(image, content_type='image/png')