Hi!
On http://httpd.apache.org/docs/2.2/mod/mod_rewrite.html, an option is
described:
======================================================================
'B' (escape backreferences)
Apache has to unescape URLs before mapping them, so backreferences will
be unescaped at the time they are applied. Using the B flag,
non-alphanumeric characters in backreferences will be escaped. For
example, consider the rule:
RewriteRule ^(.*)$ index.php?show=$1
This will map /C++ to index.php?show=C++. But it will also map /C%2b%2b
to index.php?show=C++, because the %2b has been unescaped. With the B
flag, it will instead map to index.php?show=>/C%2b%2b.
This escaping is particularly necessary in a proxy situation, when the
backend may break if presented with an unescaped URL.
======================================================================
Before I upgrade, can someone confirm that this option will do what I
expect it to do? Given a request for: "/Hello/One%2FTwo%2FThree/World/"
with "AllowEncodedSlashes" turned on.
1.) Without the 'B' flag: "RewriteRule ^(.*)$ http://domain$1 [P]"
proxies the request to: "http://domain/Hello/One/Two/Three/World/";
2.) *With* the 'B' flag: RewriteRule ^(.*)$ http://domain$1 [P,B] will
proxy the request to: "http://domain/Hello/One%2FTwo%2FThree/World/";
Is that correct, or have I misunderstood?
Also, am I correct in thinking this option isn't included in the latest
stable 2.2 release and will be released with 2.2.7? I only ask because I
found it mentioned at
http://svn.apache.org/viewvc/httpd/httpd/branches/2.2.x/CHANGES?view=diff&r1=589614&r2=589615&pathrev=589615
If this *is* the case, why is it already mentioned in the online
documentation?
Regards,
Mike
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