Send_file problem with IE7. Save Image as untitled.bmp

Rails
1

Platform = Linux and Mongrel

I’m using send_file to send images from a controller. like this:

send_file( @content.location, :disposition => ‘inline’, :type =>
File.mime_type?(@content.location)) # mime_type? courtesy of mimetype_fu

This is called for in an ordinary tag.

It all works perfectly except for one minor hitch which is driving me
mad.

If you right click on the image in IE7 and choose “Save Image As…” the
file save dialog always defaults the filename to “untitled.bmp”.

Other browsers always get the correct file name (usually something like
“61.png” or “18.jpg”)

If I copy the file into the corresponding path under RAILS_ROOT/public
then IE7 will get the filename correct - as will all browsers.

Interestingly if you do save the file as untitled.bmp it’s a perfectly
good bmp file.

The HTTP headers set by mongrel differ substantially from the ones set
by send_file.

Using send_file gives:

Status=OK - 200
Date=Tue, 16 Sep 2008 18:16:59 GMT
Server=Mongrel 1.1.4
Vary=Host
Status=200 OK
X-Runtime=0.01416
Content-Transfer-Encoding=binary
Cache-Control=private
Content-Disposition=inline; filename=“16.jpg”
Content-Type=image/jpeg
Content-Length=164553
X-Cache=MISS from www.sharehost.co.uk
Keep-Alive=timeout=15, max=100
Connection=Keep-Alive

Serving the file from the public area gives:

Status=OK - 200
Date=Tue, 16 Sep 2008 18:17:09 GMT
Vary=Host
Etag=“48cfb25c-65c2f-918190”
Last-Modified=Tue, 16 Sep 2008 13:19:24 GMT
Content-Type=image/jpeg
Content-Length=416815
X-Cache=MISS from www.sharehost.co.uk
Keep-Alive=timeout=15, max=99
Connection=Keep-Alive

Anybody know what I can do about this?

2

Noel W. wrote:

If you right click on the image in IE7 and choose “Save Image As…” the
file save dialog always defaults the filename to “untitled.bmp”.

Try using send_file’s :filename option.

–
Rails Wheels - Find Plugins, List & Sell Plugins -
http://railswheels.com

3

Mark Reginald J. wrote:

Noel W. wrote:

If you right click on the image in IE7 and choose “Save Image As…” the
file save dialog always defaults the filename to “untitled.bmp”.

Try using send_file’s :filename option.

–
Rails Wheels - Find Plugins, List & Sell Plugins -
http://railswheels.com

I already tried that but it makes no difference - the response headers
are exactly the same. In fact in the one instance when explorer gets it
right (when the file is served normally without using send_file) there
is no content-disposition header and no mention of the filename in any
of the other headers either.

Thanks anyway!

4

Your other solution that should work is to set the header directly
that IE is parsing, Content-Disposition.

i.e.:

headers[‘Content-Disposition’] = “inline; filename="” + @filename +
“"”

-Brady
[email protected]

On Sep 16, 12:28 pm, Noel W. [email protected]

5

brady8 wrote:

Your other solution that should work is to set the header directly
that IE is parsing, Content-Disposition.

i.e.:

headers[‘Content-Disposition’] = “inline; filename="” + @filename +
“"”

-Brady
[email protected]

On Sep 16, 12:28�pm, Noel W. [email protected]

Thanks, but send_file already puts the correct Content-Disposition
header in the response, but IE only seems to work properly when it’s
missing - but there are other differences in the headers, so I can’t
tell if that is significant or not.

Here is the response header that you get when the server sends a file
from a public folder. It works properly with all the browsers I’ve tried

Status=OK - 200
Date=Tue, 16 Sep 2008 18:17:09 GMT
Vary=Host
Etag=“48cfb25c-65c2f-918190”
Last-Modified=Tue, 16 Sep 2008 13:19:24 GMT
Content-Type=image/jpeg
Content-Length=416815
X-Cache=MISS from www.sharehost.co.uk
Keep-Alive=timeout=15, max=99
Connection=Keep-Alive

This is what send_file is producing. It doesn’t work properly with IE -

Status=OK - 200
Date=Tue, 16 Sep 2008 18:16:59 GMT
Server=Mongrel 1.1.4
Vary=Host
Status=200 OK
X-Runtime=0.01416
Content-Transfer-Encoding=binary
Cache-Control=private
Content-Disposition=inline; filename=“16.jpg”
Content-Type=image/jpeg
Content-Length=164553
X-Cache=MISS from www.sharehost.co.uk
Keep-Alive=timeout=15, max=100
Connection=Keep-Alive

I did wonder if the doubled Status header is the source of the problem -
but I’ve no idea how to get rid of it without abandoning the use of
send_file.

if there was a way to get send_file to produce a response like the
first one I’d be quite happy.

otherwise I’ll just have to put up with it - it’s not terribly serious
just inconsistent.

Maybe I could make the controller create a publicly accesible symlink to
the file, do a redirect to the same controller/action and then delete
the link again.

I’ve been frigging about with this for 3 days now. Not feeling terribly
Agile.