How can I convert this Apache Rewrite rule into a Tuckey UrlRewriteFilter Rule?

I have the following Apache Rewrite rule

<IfModule rewrite_module>
     RewriteEngine on
     RewriteMap tolowercase int:tolower
     RewriteCond $2 [A-Z] 
     RewriteRule ^(.*)/(.*).html$ $1/${tolowercase:$2}.html [R=301,L]
</IfModule>

that changes this:

http://localhost.localdomain.com/FooBarBaz.html

to this:

http://localhost.localdomain.com/foobarbaz.html

I'd like to port it to this tuckey.org URL Rewrite Filter.

What is an equivalent rule that I could use to make the URL lowercase? I'm particul开发者_如何学运维arly interested in how to form the condition element.

Here's my first cut at the rule, but it doesn't work, even without the condition:

<rule>
    <name>Force URL filenames to lower case</name>
    <from>^(.*)/(.*).html$</from>
    <to type="permanent-redirect" last="true">$1/${lower:$2}.html</to>
</rule>

Here's what I eventually settled on:

<rule match-type="regex">
    <name>Force URL filenames to lower case</name>
    <condition type="request-uri" casesensitive="false" operator="notequal">^.*/a4j.*$</condition>
    <condition type="request-uri" casesensitive="true">^.*/.*[A-Z].*.html$</condition>
    <from>^(.*)/(.*).html$</from>
    <to type="permanent-redirect" last="true">$1/${lower:$2}.html</to>
</rule>

The first condition is to prevent the rule from running on A4J AJAX requests.

Sean,

You don't need a condition to do this (excepting the ignore on the AJAX calls). More importantly, the condition element does not have a casesensitive attribute, only the from element does. Once I realized this, I was able to write the rule as:

<rule match-type="regex">  
    <note>Force URL to lower case</note>
    <from casesensitive="true">^.*[A-Z].*$</from>
    <to type="permanent-redirect" last="true">${lower:$0}</to>  
</rule>

NOTE: This works for the entire path request (though not the querystring).

I stumbled across your post because the URL Rewrite Filter rule I was given that looked a lot like yours was not working. Through a ton of trial and error, I eventually found that the problem wasn't with the regular expression at all. It was that it was matching but was not case sensitive, so I was getting infinite redirects.