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Posted to users@trafficserver.apache.org by 彭勇 <pp...@pubyun.com> on 2017/03/09 09:15:49 UTC

problem when rewrite host header with plugin header_rewrite

I would like to like rewrite host header with regex:

some.domain.abc.com -> some.domain

here is regex:

/(.*)\.abc\.com$/  ->  $1

i dig into header_rewrite doc and code, but i don't know how to write
the rewrite rule with regex:

cond %{SEND_REQUEST_HDR_HOOK}
cond %{HEADER:HOST} /(.*)\.abc\.com$/
set-header host how_to_write_some_regex_value


here is some hint in document:

Setting a header with a value can take the following formats:

Any condition which extracts a value from the request.
$N, where 0 <= N <= 9, from matching groups in a regular expression.



-- 
Peng Yong

Re: problem when rewrite host header with plugin header_rewrite

Posted by Nick Kew <ni...@apache.org>.

On Fri, 2017-03-10 at 08:40 +0800, \u5f6d\u52c7 wrote:
> thanks zwoop,
> 
> i would like to only rewrite the host header and not the origin server.
> 
> the map_regex will rewrite the host header and the origin server.

Check your proxy.config.url_remap.pristine_host_hdr

-- 
Nick Kew

Re: problem when rewrite host header with plugin header_rewrite

Posted by 彭勇 <pp...@pubyun.com>.

thanks zwoop,

i would like to only rewrite the host header and not the origin server.

the map_regex will rewrite the host header and the origin server.

On Thu, Mar 9, 2017 at 11:25 PM, Leif Hedstrom <zw...@apache.org> wrote:
> You can do this with map_regex without a plugin I think.
>
> -- Leif
>
>> On Mar 9, 2017, at 1:15 AM, 彭勇 <pp...@pubyun.com> wrote:
>>
>> I would like to like rewrite host header with regex:
>>
>> some.domain.abc.com -> some.domain
>>
>> here is regex:
>>
>> /(.*)\.abc\.com$/  ->  $1
>>
>> i dig into header_rewrite doc and code, but i don't know how to write
>> the rewrite rule with regex:
>>
>> cond %{SEND_REQUEST_HDR_HOOK}
>> cond %{HEADER:HOST} /(.*)\.abc\.com$/
>> set-header host how_to_write_some_regex_value
>>
>>
>> here is some hint in document:
>>
>> Setting a header with a value can take the following formats:
>>
>> Any condition which extracts a value from the request.
>> $N, where 0 <= N <= 9, from matching groups in a regular expression.
>>
>>
>>
>> --
>> Peng Yong
>



-- 
Peng Yong

Re: problem when rewrite host header with plugin header_rewrite

Posted by Leif Hedstrom <zw...@apache.org>.

You can do this with map_regex without a plugin I think.

-- Leif 

> On Mar 9, 2017, at 1:15 AM, 彭勇 <pp...@pubyun.com> wrote:
> 
> I would like to like rewrite host header with regex:
> 
> some.domain.abc.com -> some.domain
> 
> here is regex:
> 
> /(.*)\.abc\.com$/  ->  $1
> 
> i dig into header_rewrite doc and code, but i don't know how to write
> the rewrite rule with regex:
> 
> cond %{SEND_REQUEST_HDR_HOOK}
> cond %{HEADER:HOST} /(.*)\.abc\.com$/
> set-header host how_to_write_some_regex_value
> 
> 
> here is some hint in document:
> 
> Setting a header with a value can take the following formats:
> 
> Any condition which extracts a value from the request.
> $N, where 0 <= N <= 9, from matching groups in a regular expression.
> 
> 
> 
> -- 
> Peng Yong