Sending a zip file with Rails & nginx

Question

I cannot download a zip file (using send_file) when using nginx as a proxy.

def download
  send_file file_path, filename: "file.zip"
end

Running without nginx (webrick only) it works fine but with the nginx proxy it opens this in the browser:

Nginx proxy config:

server {
    server_name mydomain.com;

    location / {
        proxy_pass http://localhost:3001;
        proxy_set_header Host $host;
        auth_basic "Restricted";
        auth_basic_user_file /etc/nginx/keys/app.htpasswd;
    }
}

Edit:

Reloading the page results in the document being downloaded, so I looked at the request headers for each request. They should both be the same, but they are not.

Opened in browser

Failed

Successfully downloaded

Successful

The only difference is that the first one I clicked a link (opening link in new tab downloads and opens the file) and I refreshed the page on the second one.

Edit 2:

I tried it again with webrick and it is doing the same thing.

Well, show the controller code for how you send it. – Jul 22 '16 at 20:10 — , Jul 22 '16 at 20:10

score 0 · Answer 1 · answered Jul 22 '16 at 20:14

0

You should also send the file headers and make sure they are passed through via nginx. you can easily verify that by monitoring your browser's requests and responses in network tab

answered Jul 22 '16 at 20:14

Miad Abrin

952
7
14

Which headers should I be verifying? The content type (in chrome network console) correctly shows `application/zip` – agustaf Jul 22 '16 at 20:20
have you also verified the headers you receive from nginx? yes `application/zip` is the correct header – Miad Abrin Jul 22 '16 at 20:24
can I also see your nginx proxy config? – Miad Abrin Jul 22 '16 at 20:25
I added it to my post. – agustaf Jul 22 '16 at 20:29

score 0 · Accepted Answer · edited May 23 '17 at 10:30

0

Turns out it was turbolinks that was causing the problem. I had to add data: {turbolinks: false} to my link_to tag.

See also: Rails 4, asset pipeline causes user downloadable files to be downloaded twice, rails won't send_data as file, Ruby on Rails send_file, code in controller action running twice, Ruby on Rails send_file doesn't work until i refresh the page?

edited May 23 '17 at 10:30

Community

1
1

answered Dec 17 '16 at 22:06

agustaf

683
1
6
19

Sending a zip file with Rails & nginx

Edit:

Opened in browser

Successfully downloaded

Edit 2:

2 Answers2