We are looking for an approach for developing a web based application which should have facility to upload large files (size upto 10 GB) with resume开发者_运维问答 facility.
We want to develop this application using python/django or C#/asp.net.
Any suggestion would be appreciated.
plupload with the Java backend will support files up to any size.
https://github.com/jakobadam/plupload-java-runtime
You will need to port the uploading portion to Django. It would be something like this. Although this does not do any checksum verification.
def fileUpload(request):
    """file upload for plupload"""
    if request.method == 'POST':
        name = request.REQUEST.get('name','')
        uploaded_file = request.FILES['file']
        if not name:
            name = uploaded_file.name
        name,ext = os.path.splitext(name)
        #check to see if a user has uploaded a file before, and if they have
        #not, make them a upload directory
        upload_dir = "/results/referenceLibrary/temp/"
        if not os.path.exists(upload_dir):
            return render_to_json({"error":"upload path does not exist"})
        dest_path = '%s%s%s%s' % (upload_dir,os.sep,name,ext)
        chunk = request.REQUEST.get('chunk','0')
        chunks = request.REQUEST.get('chunks','0')
        md5chunk = request.REQUEST.get('md5chunk', False)
        md5total = request.REQUEST.get('md5total', False)
        debug = [chunk, chunks, md5chunk, md5total]
        with open(dest_path,('wb' if chunk==0 else 'ab')) as f:
            for content in uploaded_file.chunks():
                f.write(content)
        if int(chunk) + 1 >= int(chunks):
            #the upload has finished
            pass
        return render_to_json({"chuck posted":debug})
    else:
        return render_to_json({"method":"only post here"})
Using the standard upload functionality of the browser for such large files is rather insane. For such files you rather expose ftp functionality to a disk where you can have, in .NET, have a windows service monitor a certain folder and if something gets dropped there act accordingly. .NET has a FileSystemWatcher class available to aid you in your effort.
 
         
                                         
                                         
                                         
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