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From Michael Altenhofen <Michael.Altenho...@sap.com>
Subject mod_rewrite/4869: Can't rewrite a URL if hostname part is followed by a port
Date Tue, 17 Aug 1999 14:57:29 GMT

>Number:         4869
>Category:       mod_rewrite
>Synopsis:       Can't rewrite a URL if hostname part is followed by a port
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Tue Aug 17 08:00:03 PDT 1999
>Originator:     Michael.Altenhofen@sap.com
>Release:        1.3.6
Debugger session under Windows/NT 4.0 Server, SP4 with VC 6.0.
Binary compiled from latest source kit. 
I'll try to build up a rewrite rule logic that allows me to rewrite proxy requests on a per-dir
basis. For that, I've included the following rule in httpd.conf:

RewriteRule ^proxy:([^:]*:)//([^/]*[/].*$) /proxyrequests/${ident-to-dir:%{REMOTE_ADDR}|default}/$2

An example rule in /proxyrequests/default/.htaccess could be this one:

RewriteRule (.*) %{ENV:PTYPE}$1 [p]

Now, if the requested URL contains a port number, like e.g. http://www.foobar.com:8080/, I'll
get an Forbidden reply.

After hook_uri2file mod_rewrite reports an
"go-ahead with /apache/htdocs/proxyrequests/default/www.foobar.com:8080/ [OK]"

The subsequent "dirwalk" will fail, though, because "ap_os_is_filename_valid"
considers this file name invalid.

See description above:

Add the RewriteRule to httpd.conf. You can omit the RewriteMap directive. I assume that doesn't
change the behaviour. Set up the appropriate .htaccess file. Type in a URL that contains a
port number.
I must confess that I still haven't completely figured out how mod_rewrite works. The PTYPE
hack in the rule above is my poor man's solution to the fact that I can't keep the schema
part in the URL, otherwise all rewrites will fail.

The short-hand work around is to also strip the host part from the URL and have mod_rewrite
work on the rest. But then, I can't have such clever things like host based rewriting.

So I'm waiting for a more throughout solution, either by modifications to the software or
by explaining me a more clever way to do the things I want to do.
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