[Lynx-dev] HTML Forms > Fileupload (RFC1867) > Content-Type

[s . marek]

Hi,

when loading up a file to a webserver via an HTML Form, RFC 1867 suggests, 
that you set the Content-Type of the mime-part of the file to 
application/octet-stream, if the media-type is unknown. (see sections 3.3 
and 7 in RFC 1867)

Lynx uses Content-Type: text/plain, when no suffix is matching. I have to 
admit, that the RFC is a bit unclear in section 7 about what the default 
Content-Type actually is, but IMHO it should default to the binary type 
(section 3.3 is clearer).

--- src/GridText.c.old  2007-11-07 09:19:03.000000000 +0100
+++ src/GridText.c      2007-11-07 09:20:53.000000000 +0100
@@ -10342,7 +10342,7 @@
 
     return (format != 0 && non_empty(format->name))
        ? format->name
-       : "text/plain";
+       : "application/octet-stream";
 }
 #endif /* USE_FILE_UPLOAD */


This is a patch against lynx2.8.6rel.4 - so the line-numbers may differ in 
2.8.7. The affected function is 
static const char *guess_content_type(const char *filename) in 
src/GridText.c.

I worked around my local problem without recompiling lynx by adding an 
extra SUFFIX-line in lynx.cfg for my special file here, which has the 
extension .image and needs to be treated as application/octet-stream. But 
I think the root of the problem is the wrong default Content-Type. It 
should have worked right out-of-the-box.

Hope I haven't overlooked anything,
Sebastian.