I spent a couple of minutes and made the attached (pretty bad) patch to add
a del-header-by-prefix.

Unfortunately, I made it off of master before noticing that master
segfaults on every request, so I haven't tested it yet. At least it
compiles... Feel free to use it, throw it away, or whatever else suits your

On Thu, Jan 23, 2020 at 9:26 AM James Brown <jbr...@easypost.com> wrote:

> Yes, they’re all identified by a prefix.
> On Thu, Jan 23, 2020 at 02:03 Willy Tarreau <w...@1wt.eu> wrote:
>> Hi James,
>> On Wed, Jan 22, 2020 at 04:19:41PM -0800, James Brown wrote:
>> > We're upgrading from 1.8 to 2.x and one of the things I've noticed is
>> that
>> > reqidel and rspidel seem to be totally gone in 2.1... What's the new
>> > recommendation to delete headers from request/response based on a
>> regular
>> > expression? Do I have to write a Lua action to do this now? I read
>> through
>> > the documentation for http-request and http-response and there doesn't
>> seem
>> > to be an `http-request del-header-by-regex`...
>> >
>> > Our use case is that we have dozens of different internal headers
>> behind a
>> > prefix, and we promise that we'll strip them all for incoming requests
>> and
>> > outgoing responses at the edge load balancer. That is harder to do if we
>> > can't delete all headers matching a certain regex...
>> That's an intereting use case, which I find totally legitimate and that
>> we need to figure how to address. In 2.0 you can still rely on rspdel
>> but we then need to have a solution for 2.2. Probably that in the short
>> term using Lua will be the easiest solution. And maybe we'd need to add
>> a new action such as "del-headers" which would take a regex or a prefix.
>> By the way, are all your headers identified by the same prefix ? I'm
>> asking because if that's the case, maybe we could append an optional
>> argument to del-header to mention that we want to delete all those
>> starting with this prefix and not just this exact one.
>> Willy
> --
> James Brown
> Engineer

James Brown

Attachment: 0001-add-http-request-del-header-prefix-and-http-response.patch
Description: Binary data

Reply via email to