> On 21 May 2015, at 04:17, J. Landman Gay <[email protected]> wrote:
>
> Thanks for this, Dave. I don't see any chunk markers in the file with the
> version of libURL I'm using, I see rows of plain text. But even though the
> Content-Encoding header indicates it's a gzip file, it isn't coming in as
> one. The data I'm getting from my client's server is a compressed gz file and
> uses a "Content-Transfer-Encoding: binary" header. It looks like the server
> sends plain text in your test file.
Jacque,
Is there really a "Content-Transfer-Encoding" line among the headers? If so,
that may be part of the problem. As far as I know, "Content-Transfer-Encoding"
is not a valid http header. (It’s used in email transfers I think.) libUrl
parses the headers looking for certain header types. It contains the line:
put lineOffset("Transfer-Encoding:",laRhHeader[laUrl[x]]) into tCodeLine
I think that will pick up any Content-Transfer-Encoding header if it exists
before a Transfer-Encoding header, and therefore miss the "chunked" value, and
so not try to de-chunk the data. (I guess that might be considered a bug in
libUrl. Even if Content-Transfer-Encoding is not valid, something like
X-Special-Transfer-Encoding is valid, and would probably trip up libUrl)
Out of interest, I modified the script from the previous mail to this:
on mouseUp
set the httpheaders to "Accept-Encoding: gzip, deflate"
libURLSetLogField "field 1"
put "http://www.lacscentre.com/chunkcheck/chunkcheck.php"; into tUrl
put url tUrl into field 2
end mouseUp
The server now returns gzipped data, but libUrl still strips out the chunk
markers.
>
> Last week I wrote a little utility to look at the first few bytes of the
> files as they arrive. Here are the first 10 bytes (in decimal) of a file that
> fails:
>
> 49 57 13 10 31 139 8 0 225 192
Those first four bytes are the chunk marker line.
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