94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
# https://github.com/FineUploader/server-examples/blob/master/python/django-fine-uploader
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from django.conf import settings
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from django import forms
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from django.forms import ClearableFileInput
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import os, os.path
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import tempfile
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import shutil
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__all__ = ("handle_upload", "save_upload", "FineUploadForm", "FineUploadFileInput")
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def combine_chunks(total_parts, total_size, source_folder, dest):
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if not os.path.exists(os.path.dirname(dest)):
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os.makedirs(os.path.dirname(dest))
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with open(dest, "wb+") as destination:
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for i in range(total_parts):
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part = os.path.join(source_folder, str(i))
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with open(part, "rb") as source:
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destination.write(source.read())
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def save_upload(f, path):
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if not os.path.exists(os.path.dirname(path)):
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os.makedirs(os.path.dirname(path))
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with open(path, "wb+") as destination:
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if hasattr(f, "multiple_chunks") and f.multiple_chunks():
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for chunk in f.chunks():
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destination.write(chunk)
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else:
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destination.write(f.read())
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# pass callback function to post_upload
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def handle_upload(f, fileattrs, upload_dir, post_upload=None):
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chunks_dir = os.path.join(tempfile.gettempdir(), "chunk_upload_tmp")
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if not os.path.exists(os.path.dirname(chunks_dir)):
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os.makedirs(os.path.dirname(chunks_dir))
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chunked = False
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dest_folder = upload_dir
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dest = os.path.join(dest_folder, fileattrs["qqfilename"])
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# Chunked
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if fileattrs.get("qqtotalparts") and int(fileattrs["qqtotalparts"]) > 1:
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chunked = True
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dest_folder = os.path.join(chunks_dir, fileattrs["qquuid"])
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dest = os.path.join(
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dest_folder, fileattrs["qqfilename"], str(fileattrs["qqpartindex"])
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)
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save_upload(f, dest)
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# If the last chunk has been sent, combine the parts.
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if chunked and (fileattrs["qqtotalparts"] - 1 == fileattrs["qqpartindex"]):
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combine_chunks(
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fileattrs["qqtotalparts"],
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fileattrs["qqtotalfilesize"],
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source_folder=os.path.dirname(dest),
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dest=os.path.join(upload_dir, fileattrs["qqfilename"]),
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)
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shutil.rmtree(os.path.dirname(os.path.dirname(dest)))
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if post_upload and (
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not chunked or fileattrs["qqtotalparts"] - 1 == fileattrs["qqpartindex"]
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):
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post_upload()
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class FineUploadForm(forms.Form):
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qqfile = forms.FileField()
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qquuid = forms.CharField()
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qqfilename = forms.CharField()
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qqpartindex = forms.IntegerField(required=False)
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qqchunksize = forms.IntegerField(required=False)
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qqpartbyteoffset = forms.IntegerField(required=False)
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qqtotalfilesize = forms.IntegerField(required=False)
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qqtotalparts = forms.IntegerField(required=False)
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class FineUploadFileInput(ClearableFileInput):
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template_name = "widgets/fine_uploader.html"
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def fine_uploader_id(self, name):
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return name + "_" + "fine_uploader"
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def get_context(self, name, value, attrs):
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context = super().get_context(name, value, attrs)
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context["widget"].update(
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{
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"fine_uploader_id": self.fine_uploader_id(name),
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}
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)
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return context
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