feat: contact form and more edits

apps/pages/views.py

@@ -1,6 +1,12 @@
+import random
+
+from django.http import JsonResponse
+from django.shortcuts import render
+from django.views import View
 from django.views.generic import ListView, TemplateView
 
-from .models import DownloadItem, FAQEntry
+from .forms import ContactForm
+from .models import ContactSubmission, DownloadItem, FAQEntry
 
 
 class HomeView(TemplateView):
@@ -36,5 +42,43 @@ class FAQView(ListView):
     queryset = FAQEntry.objects.filter(is_active=True)
 
 
-class ContactView(TemplateView):
+class ContactView(View):
     template_name = "pages/contact.html"
+
+    def _new_captcha(self, request):
+        a, b = random.randint(1, 9), random.randint(1, 9)
+        request.session["captcha_answer"] = a + b
+        return f"{a} + {b}"
+
+    def get(self, request, *args, **kwargs):
+        return render(
+            request,
+            self.template_name,
+            {"form": ContactForm(), "captcha_question": self._new_captcha(request)},
+        )
+
+    def post(self, request, *args, **kwargs):
+        form = ContactForm(request.POST)
+        expected = request.session.get("captcha_answer")
+        captcha_question = self._new_captcha(request)
+
+        captcha_ok = False
+        try:
+            captcha_ok = int(request.POST.get("captcha_answer", "")) == expected
+        except (ValueError, TypeError):
+            pass
+
+        if form.is_valid() and captcha_ok:
+            form.save()
+            return JsonResponse({"success": True})
+
+        errors: dict = {}
+        if not captcha_ok:
+            errors["captcha"] = ["Incorrect answer — please try again."]
+        errors.update(
+            {field: [str(e) for e in errs] for field, errs in form.errors.items()}
+        )
+        return JsonResponse(
+            {"success": False, "errors": errors, "captcha_question": captcha_question},
+            status=400,
+        )