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Posted to dev@httpd.apache.org by jean-frederic clere <jf...@gmail.com> on 2017/07/10 06:56:41 UTC

rfc1123 aka Proxy balancer://127

Hi,

According rfc1123 the configuration:
ProxyPass "/" "balancer://127"
<Proxy balancer://127>
    BalancerMember ajp://tomcat1:8009
    BalancerMember ajp://tomcat2:8009
</Proxy>

127 looks valid but it is rejected by httpd, apr_parse_addr_port() takes
127 as port instead hostname.

So addr is NULL, then I have:
"AH01157: error parsing URL //127: Invalid host/port"

Is 127 really valid, if yes do we plan to fix that?

Cheers

Jean-Frederic

AW: rfc1123 aka Proxy balancer://127

Posted by Plüm, Rüdiger, Vodafone Group <ru...@vodafone.com>.

> -----Ursprüngliche Nachricht-----
> Von: Jim Jagielski [mailto:jim@jaguNET.com]
> Gesendet: Montag, 10. Juli 2017 15:33
> An: dev@httpd.apache.org
> Betreff: Re: rfc1123 aka Proxy balancer://127
> 
> Personally, I think we simply document that balancer names
> must start w/ a character.

+1

Regards

Rüdiger

> 
> > On Jul 10, 2017, at 2:56 AM, jean-frederic clere <jf...@gmail.com>
> wrote:
> >
> > Hi,
> >
> > According rfc1123 the configuration:
> > ProxyPass "/" "balancer://127"
> > <Proxy balancer://127>
> >    BalancerMember ajp://tomcat1:8009
> >    BalancerMember ajp://tomcat2:8009
> > </Proxy>
> >
> > 127 looks valid but it is rejected by httpd, apr_parse_addr_port()
> takes
> > 127 as port instead hostname.
> >
> > So addr is NULL, then I have:
> > "AH01157: error parsing URL //127: Invalid host/port"
> >
> > Is 127 really valid, if yes do we plan to fix that?
> >
> > Cheers
> >
> > Jean-Frederic


Re: rfc1123 aka Proxy balancer://127

Posted by Jim Jagielski <ji...@jaguNET.com>.
Personally, I think we simply document that balancer names
must start w/ a character.

> On Jul 10, 2017, at 2:56 AM, jean-frederic clere <jf...@gmail.com> wrote:
> 
> Hi,
> 
> According rfc1123 the configuration:
> ProxyPass "/" "balancer://127"
> <Proxy balancer://127>
>    BalancerMember ajp://tomcat1:8009
>    BalancerMember ajp://tomcat2:8009
> </Proxy>
> 
> 127 looks valid but it is rejected by httpd, apr_parse_addr_port() takes
> 127 as port instead hostname.
> 
> So addr is NULL, then I have:
> "AH01157: error parsing URL //127: Invalid host/port"
> 
> Is 127 really valid, if yes do we plan to fix that?
> 
> Cheers
> 
> Jean-Frederic


Re: rfc1123 aka Proxy balancer://127

Posted by jean-frederic clere <jf...@gmail.com>.
On 07/10/2017 11:36 AM, Yann Ylavic wrote:
> Hi Jean-Frederic,
> 
> On Mon, Jul 10, 2017 at 8:56 AM, jean-frederic clere <jf...@gmail.com> wrote:
>>
>> According rfc1123 the configuration:
>> ProxyPass "/" "balancer://127"
>> <Proxy balancer://127>
>>     BalancerMember ajp://tomcat1:8009
>>     BalancerMember ajp://tomcat2:8009
>> </Proxy>
>>
>> 127 looks valid but it is rejected by httpd, apr_parse_addr_port() takes
>> 127 as port instead hostname.
> 
> I think apr_parse_addr_port() is more meant to parse some special
> httpd directives (which can be port only) than rfc1123's hosts.
> 
>>
>> So addr is NULL, then I have:
>> "AH01157: error parsing URL //127: Invalid host/port"
>>
>> Is 127 really valid, if yes do we plan to fix that?
> 
> We probably should use apr_uri_parse() in ap_proxy_canon_netloc(), and
> possibly for performance reasons even try to do it one and only once
> by request in the whole mod_proxy processing...

Correct the problem isn't limited to the balancer scheme for example:
ProxyPass "/" "ajp://127"
gives:
AH00867: error parsing URL //127: Invalid host/port

So we should we say we are limited to RFC-952 or/and we need the
hostname/balancer names to start with a letter?

Cheers

Jean-Frederic

> 
> 
> Regards,
> Yann.
> 


Re: rfc1123 aka Proxy balancer://127

Posted by Yann Ylavic <yl...@gmail.com>.
Hi Jean-Frederic,

On Mon, Jul 10, 2017 at 8:56 AM, jean-frederic clere <jf...@gmail.com> wrote:
>
> According rfc1123 the configuration:
> ProxyPass "/" "balancer://127"
> <Proxy balancer://127>
>     BalancerMember ajp://tomcat1:8009
>     BalancerMember ajp://tomcat2:8009
> </Proxy>
>
> 127 looks valid but it is rejected by httpd, apr_parse_addr_port() takes
> 127 as port instead hostname.

I think apr_parse_addr_port() is more meant to parse some special
httpd directives (which can be port only) than rfc1123's hosts.

>
> So addr is NULL, then I have:
> "AH01157: error parsing URL //127: Invalid host/port"
>
> Is 127 really valid, if yes do we plan to fix that?

We probably should use apr_uri_parse() in ap_proxy_canon_netloc(), and
possibly for performance reasons even try to do it one and only once
by request in the whole mod_proxy processing...


Regards,
Yann.