Display scholarship attestation

apps/registration/views.py

@@ -474,6 +474,28 @@ class ParentalAuthorizationView(LoginRequiredMixin, View):
         return FileResponse(open(path, "rb"), content_type=mime_type, filename=true_file_name)
 
 
+class ScholarshipView(LoginRequiredMixin, View):
+    """
+    Display the sent scholarship paper.
+    """
+    def get(self, request, *args, **kwargs):
+        filename = kwargs["filename"]
+        path = f"media/authorization/scholarship/{filename}"
+        if not os.path.exists(path):
+            raise Http404
+        payment = Payment.objects.get(scholarship_file__endswith=filename)
+        user = request.user
+        if not (payment.registration.user == user or user.registration.is_admin):
+            raise PermissionDenied
+        # Guess mime type of the file
+        mime = Magic(mime=True)
+        mime_type = mime.from_file(path)
+        ext = mime_type.split("/")[1].replace("jpeg", "jpg")
+        # Replace file name
+        true_file_name = _("Scholarship attestation of {user}.{ext}").format(user=str(user.registration), ext=ext)
+        return FileResponse(open(path, "rb"), content_type=mime_type, filename=true_file_name)
+
+
 class SolutionView(LoginRequiredMixin, View):
     """
     Display the sent solution.