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bug#32528: http-post breaks with XML response payload containing boundar
From: |
Ricardo Wurmus |
Subject: |
bug#32528: http-post breaks with XML response payload containing boundary |
Date: |
Wed, 29 Aug 2018 12:26:02 +0200 |
User-agent: |
mu4e 1.0; emacs 26.1 |
Hi Mark,
> Ricardo Wurmus <address@hidden> writes:
>
[…]
>> The reason why it fails is that Guile processes the response and treats
>> the *payload* contained in the XML response as HTTP.
>
> No, this was a good guess, but it's not actually the problem.
You are right. I also ended up trying with “wget --save-headers” after
sending the bug report and noticed the offending header like you did:
> Content-Type: multipart/related; type="text/xml"; start="<main_envelope>";
> boundary="=-=-="
>
> <?xml [...]
I assumed it was part of the payload when it really was a regular
header after all.
> The problem is simply that our Content-Type header parser is broken.
> It's very simplistic and merely splits the string wherever ';' is found,
> and then checks to make sure there's only one '=' in each parameter,
> without taking into account that quoted strings in the parameters might
> include those characters.
Right. I worked around this in guile-debbugs simply by replacing the
Content-Type header parser with one that lacks the check for the unique
“=” in the string part.
> I'll work on a proper parser for Content-Type headers.
Thanks!
--
Ricardo