A public cloud with django backend

[Rahul Doshi]

Hi ,I want to setup  a dropbox like server with django. So far i have achieved uploading files onto a location .I want these files to show up on browser which they do(while saving file to the location I indexed an entry in the Db so i just print the file names from the DB(POSTGRESQL).Now i want to provide users options to view or download the files.I put a link on it and tried ,it did not work since it shows an javascript error "NOT ALLOWED TO LOAD LOCAL RECOURCE" . All uploaded files are loaded in C drive of my laptop. Where else do i load so that javascript can load it? Attaching my code ..thanks in advance.

Index.html

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

<script>

function downloadFile(filename){

}

</script>

<table id='filetable' border = '1'>

{% for i in q  %}

   <tr>

   <td>{{i.id}}</td>

   <td>

   <a href='C:\Users\rdoshi\storage\{{i.file_name}}'>{{i.file_name}}</a>

   <button type="button" onclick="downloadFile("{{i.file_name}}")">Download</button>

   </td>

   </tr>

 {% endfor %}

</table>

<form method = "post" action="../upload/" enctype ="multipart/form-data">{% csrf_token %}

         <input type="file" name="files" multiple />

<input type = "submit" value="Upload" />

</form>

views.py

from django.shortcuts import render

from django.http import HttpResponse

from django.shortcuts import render_to_response

from polls.models import Files

from os import walk

from os.path import isfile, join

def index(request):

return render(request,"index.html", {})

def upload(request):

for x in request.FILES.getlist("files"):

def process(f):

with open(r'C:\Users\rdoshi\storage\%s ' %f.name , 'wb+') as destination:

b = Files(file_name= f.name)

b.save()

for chunk in f.chunks():

destination.write(chunk)

process(x)

q = Files.objects.all()

return render(request,  "index.html", {'q' : q})

[Andreas Kuhne]

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Hi, 

I think you should look at how the django storage system works https://docs.djangoproject.com/el/1.10/ref/files/storage/.

You should store the files in the media directory of your app and not directly on your harddrive in an arbitrary folder. Then you can serve the files by using the url that you get from the file field in the model.

The way you have created it now the link goes to your local harddrive and not to the server itself. If you where to run that on the internet, the files would be located on the servers drive (to wherever you put the file folder) and then when clicking on the link the users would be looking at there own harddrive for the file.

Check https://docs.djangoproject.com/ja/1.10/ref/models/fields/#filefield for more information about the filefield.

Regards,

Andréas

[Tom Evans]

On Thu, Sep 15, 2016 at 8:21 AM, Rahul Doshi <raulju...@gmail.com> wrote:
> Hi ,I want to setup a dropbox like server with django. So far i have
> achieved uploading files onto a location .I want these files to show up on
> browser which they do(while saving file to the location I indexed an entry
> in the Db so i just print the file names from the DB(POSTGRESQL).Now i want
> to provide users options to view or download the files.I put a link on it
> and tried ,it did not work since it shows an javascript error "NOT ALLOWED
> TO LOAD LOCAL RECOURCE" . All uploaded files are loaded in C drive of my
> laptop. Where else do i load so that javascript can load it? Attaching my
> code ..thanks in advance.

For security reasons, browser do not allow internet zone sites to
access local content from javascript (otherwise, any site could read
any accessible file from your computer and submit it, well, anywhere).

Serve the files from the webserver instead.

Cheers

Tom

[Phang Mulianto]

hi,

this one :

<a href='C:\Users\rdoshi\storage\{{i.file_name}}'>{{i.file_name}}</a>   

should be 

<a href='/media/{{i.file_name}}'>{{i.file_name}}</a>

it will point to your local webserver if in local dev (http://127.0.0.1/media/filename) , and in prod will be from your domain (http://yourdomain.com/media/filename)

Cheers,

Mulianto

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