60 lines
1.8 KiB
Python

import os
import tempfile
from datetime import datetime
from time import mktime
import magic
from django import forms
from django.conf import settings
from django_q.tasks import async_task
from pathvalidate import validate_filename, ValidationError
from documents.parsers import is_mime_type_supported
class UploadForm(forms.Form):
document = forms.FileField()
def clean_document(self):
document_name = self.cleaned_data.get("document").name
try:
validate_filename(document_name)
except ValidationError:
raise forms.ValidationError("That filename is suspicious.")
document_data = self.cleaned_data.get("document").read()
mime_type = magic.from_buffer(document_data, mime=True)
if not is_mime_type_supported(mime_type):
raise forms.ValidationError("This mime type is not supported.")
return document_name, document_data
def save(self):
"""
Since the consumer already does a lot of work, it's easier just to save
to-be-consumed files to the consumption directory rather than have the
form do that as well. Think of it as a poor-man's queue server.
"""
original_filename, data = self.cleaned_data.get("document")
t = int(mktime(datetime.now().timetuple()))
os.makedirs(settings.SCRATCH_DIR, exist_ok=True)
with tempfile.NamedTemporaryFile(prefix="paperless-upload-",
dir=settings.SCRATCH_DIR,
delete=False) as f:
f.write(data)
os.utime(f.name, times=(t, t))
async_task("documents.tasks.consume_file",
f.name,
override_filename=original_filename,
task_name=os.path.basename(original_filename)[:100])