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From bugzi...@apache.org
Subject [Bug 56094] New: mod_rewrite doesn't expose client_addr
Date Fri, 31 Jan 2014 11:15:56 GMT
https://issues.apache.org/bugzilla/show_bug.cgi?id=56094

            Bug ID: 56094
           Summary: mod_rewrite doesn't expose client_addr
           Product: Apache httpd-2
           Version: 2.4.7
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: mod_rewrite
          Assignee: bugs@httpd.apache.org
          Reporter: h.reindl@thelounge.net

quote from the httpd-devl-list:

> It looks to me like it is not exposed in mod_rewrite.
> I'd suggest opening a bug "mod_rewrite doesn't expose client_addr".
> For consistency, I'd suggest CONN_REMOTE_ADDR as in the expression parser
___________________________

mod_rewrite can't distinguish between %a and %{c}a currently

the idea is that the proxy has 127.0.0.1 and does SSL-termination
so it should use unecrypted connections to httpd, but in case
the connection comes from a different IP mod_rewrite is supposed
to redirect the request as shown below to https

without mod_remoteip the mod_rewrite snipped works as expected
so only a replacement for %{REMOTE_ADDR} would be needed that
uses the underlying peer IP address of the connection

<IfModule mod_remoteip.c>
 RemoteIPHeader X-Forwarded-For
 RemoteIPInternalProxy 127.0.0.1
</IfModule>
<IfModule mod_rewrite.c>
 RewriteEngine on
 RewriteCond %{REMOTE_ADDR} !^127\.0\.0\.1
 RewriteCond %{HTTPS} off
 RewriteRule (.*) https://www.example.com%{REQUEST_URI}
</IfModule>

http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html

http://httpd.apache.org/docs/2.4/mod/mod_log_config.html
%a     Client IP address of the request (see the mod_remoteip module).
%{c}a     Underlying peer IP address of the connection (see the mod_remoteip
module)

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