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Posted to users@httpd.apache.org by Paul Schroeder <pa...@nimbix.net> on 2017/03/06 22:18:00 UTC
[users@httpd] mod_rewrite behavior when port is specified
Hello..
I'm seeing an issue where mod_rewrite seems to behave differently when the
client connects to my VirtualHost and includes the port as a part of the
URL. i.e. http://xenial.localdomain vs. http://xenial.localdomain:80
With this RewriteRule, the redirection that I want (to my SSL VirtualHost
listening on port 443) is working just fine as long as the client uses
http://xenial.localdomain as the URL:
RewriteRule ^/?(.*) https://%{HTTP_HOST}:443/$1 [R=301,L]
However, when the port is specified ( http://xenial.localdomain:80 ), the
redirect does not work as expected. I see the following in my logs:
192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET / HTTP/1.1" 301 595 "-"
"Links (2.13; Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET
/https://xenial.localdomain:80:443/ HTTP/1.1" 301 662 "-" "Links (2.13;
Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/ HTTP/1.1" 301 798 "-" "Links (2.13;
Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/ HTTP/1.1" 301 1070 "-" "Links (2.13;
Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/https://xenial.localdomain:80:443
/https://xenial.localdomain:80:443/ HTTP/1.1" 301 1614 "-" "Links (2.13;
Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
As you can see, a '/' is being prepended to the rewritten URL and recursion
occurs which eventually causes the URL to become too long and cause an
error. Why does specifying the port in the URL cause mod_rewrite to behave
differently? Is there a better way for me to do this?
Normally, this wouldn't be an issue, but I need to be able to run this
VirtualHost on a port other than 80.
Thanks in advance for any suggestions...Paul..
---
Paul B Schroeder <paul.schroeder "at" nimbix "dot" net>
[users@httpd] Re: mod_rewrite behavior when port is specified
Posted by Paul Schroeder <pa...@nimbix.net>.
Ah, I see what was going on. The port being included in the HTTP_HOST var
was causing the initial rewrite to be written as an invalid URL. It
appears the mod_rewrite was then assuming that this wasn't actually a
redirect and that it needed to prepend the '/' because of this. I was
distracted by the prepended '/'. I don't know how I didn't see that
before. At any rate, here is a solution that works:
RewriteCond %{HTTP_HOST} ^([^:]+):?.*
RewriteRule ^/?(.*) https://%1:443/$1 [R=301,L]
Cheers...Paul..
On Mon, Mar 6, 2017 at 4:18 PM, Paul Schroeder <pa...@nimbix.net>
wrote:
> Hello..
>
> I'm seeing an issue where mod_rewrite seems to behave differently when the
> client connects to my VirtualHost and includes the port as a part of the
> URL. i.e. http://xenial.localdomain vs. http://xenial.localdomain:80
>
> With this RewriteRule, the redirection that I want (to my SSL VirtualHost
> listening on port 443) is working just fine as long as the client uses
> http://xenial.localdomain as the URL:
>
> RewriteRule ^/?(.*) https://%{HTTP_HOST}:443/$1 [R=301,L]
>
> However, when the port is specified ( http://xenial.localdomain:80 ), the
> redirect does not work as expected. I see the following in my logs:
>
> 192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET / HTTP/1.1" 301 595
> "-" "Links (2.13; Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
> 192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET /
> https://xenial.localdomain:80:443/ HTTP/1.1" 301 662 "-" "Links (2.13;
> Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
> 192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET /
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/ HTTP/1.1" 301 798
> "-" "Links (2.13; Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
> 192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET /
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/ HTTP/1.1" 301 1070 "-" "Links (2.13;
> Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
> 192.168.122.1 - - [06/Mar/2017:18:57:58 +0000] "GET /
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/
> https://xenial.localdomain:80:443/https://xenial.
> localdomain:80:443/https://xenial.localdomain:80:443/ HTTP/1.1" 301 1614
> "-" "Links (2.13; Linux 4.8.13-100.fc23.x86_64 x86_64; GNU C 5.3.1; text)"
>
> As you can see, a '/' is being prepended to the rewritten URL and
> recursion occurs which eventually causes the URL to become too long and
> cause an error. Why does specifying the port in the URL cause mod_rewrite
> to behave differently? Is there a better way for me to do this?
>
> Normally, this wouldn't be an issue, but I need to be able to run this
> VirtualHost on a port other than 80.
>
> Thanks in advance for any suggestions...Paul..
>
>
> ---
>
> Paul B Schroeder <paul.schroeder "at" nimbix "dot" net>
>
--
--
---
Paul B Schroeder <paul.schroeder "at" nimbix "dot" net>