2023-12-28 18:17:42 +00:00
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# Create your views here.
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from django.contrib.auth.decorators import login_required
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from django.http import FileResponse, HttpResponse, HttpResponseRedirect
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from django.shortcuts import get_object_or_404, render
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import os
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import blake3
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from .forms import UploadFileForm
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from .models import Submission_File
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def compute_file_hash(file):
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'''
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Compute BLAKE3 hash of the file
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'''
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try:
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hasher = blake3.blake3()
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for chunk in file.chunks(chunk_size=65536):
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hasher.update(chunk)
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return hasher.hexdigest()
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except Exception as e:
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print(f"Error computing file hash: {e}")
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return None
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@login_required(login_url="/login/")
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def serve_submission_file(request, file_hash):
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'''
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View function to serve submission files for download or inline viewing
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'''
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download = request.GET.get('d')
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try:
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submission_file = get_object_or_404(Submission_File, file_hash=file_hash)
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file = submission_file.file.file
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file_name = submission_file.file_name
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response = FileResponse(file)
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if download == "1":
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response['Content-Disposition'] = f'attachment; filename="{file_name}"'
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else:
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response['Content-Disposition'] = f'inline; filename="{file_name}"'
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return response
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except:
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return HttpResponse("File not found", status=404)
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@login_required(login_url="/login/")
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def fileUpload(request):
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'''
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View function for handling file uploads
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'''
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if request.method == 'POST':
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form = UploadFileForm(request.POST, request.FILES)
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if form.is_valid():
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file = form.cleaned_data['file']
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file_name = file.name
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file_hash = compute_file_hash(file)
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Null, file_ext = os.path.splitext(file_name)
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hash_file_name = file_hash + file_ext
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new_submission_file, created = Submission_File.objects.get_or_create(file_hash=file_hash)
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new_submission_file.file_hash = file_hash
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new_submission_file.file_name = file_name
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new_submission_file.file.save(hash_file_name, file)
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new_submission_file.save
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2023-12-29 21:47:36 +00:00
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return HttpResponseRedirect(f"/files/submission/{file_hash}")
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2023-12-28 18:17:42 +00:00
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else:
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form = UploadFileForm()
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return render(request, 'files/upload.html', {'form': form})
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