Handling File Uploads in Django Forms - Unexpected Validation Errors on Certain File Types
I'm stuck trying to After trying multiple solutions online, I still can't figure this out... This might be a silly question, but I'm working with an scenario with file uploads in Django forms. I'm using Django 4.1 with a custom form that includes a `FileField`. When I try to upload files with certain extensions like `.exe` or `.bat`, the form validation throws an behavior instead of processing the upload. Here’s the relevant part of my form implementation: ```python from django import forms class UploadFileForm(forms.Form): file = forms.FileField() ``` In my view, I handle the form submission as follows: ```python def upload_file(request): if request.method == 'POST': form = UploadFileForm(request.POST, request.FILES) if form.is_valid(): # process the file handle_uploaded_file(request.FILES['file']) return HttpResponse('File uploaded successfully') else: return HttpResponse('Invalid file type') else: form = UploadFileForm() return render(request, 'upload.html', {'form': form}) ``` The question arises when I try to upload files with extensions like `.exe`, `.bat`, or even `.zip`. I get the behavior message: "Invalid file type". I have not set any specific validators on the `FileField`, so I am unsure why this happens. I've checked the `settings.py` for any `FILE_UPLOAD_HANDLERS` or `ALLOWED_HOSTS` configurations, but I want to find anything that would restrict these file types. I also tried adding a custom validator to allow these file types explicitly: ```python def validate_file_extension(value): valid_extensions = ['.exe', '.bat', '.zip'] if not any(value.name.endswith(ext) for ext in valid_extensions): raise forms.ValidationError('Unsupported file extension') ``` However, this doesn't seem to resolve the scenario. Could there be any default file upload restrictions in Django that I'm missing, or is there a better way to handle this scenario? Any insights would be greatly appreciated. I'm working on a API that needs to handle this. Any ideas what could be causing this? This is for a desktop app running on Debian. I'm coming from a different tech stack and learning Python. Thanks for taking the time to read this!