patch

acegijsf.taglib.xml reference from http://www.koders.com/xml/fid3FC5C48AA07739519005C0C5640CE79E11C34834.aspx
This can also be included as a custom taglib as tomahawk

<?xml version="1.0"?>
<!DOCTYPE facelet-taglib PUBLIC "-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN"
    "http://java.sun.com/dtd/facelet-taglib_1_0.dtd">
<facelet-taglib>
    <namespace>http://sourceforge.net/projects/jsf-comp/acegijsf&lt;/namespace>
    <tag>
        <tag-name>authorize</tag-name>
        <component>
            <component-type>net.sf.jsfcomp.acegijsf.Authorize</component-type>
        </component>
    </tag>
    <tag>
        <tag-name>authentication</tag-name>
        <component>
            <component-type>net.sf.jsfcomp.acegijsf.Authentication</component-type>
        </component>
    </tag>
</facelet-taglib>

Updated Patch:
Includes support
- for Manageable security once it's implemented by the cartridge.
- Inter UseCase security via action.targetUseCase

Other comments of previous and current patch features:
This patch enables support for Acegi Security System by intercepting all URLs calls to secured UseCase & Manageable Servlets and Views with a FilterSecurityInterceptor. Also includes conditional (based on Roles) rendering of JSF components with acegijsf tags. This means that actually all JSF components are in the xhtml but only get rendered if the user has the roles to view the component.

I found some limitations of the acegijsf tag library and mentioned them to Kenan Sevindik, one of the authors. He pointed me out that since facelets supports EL functions it should be easy to create functions for acegi support and avoid such limitations. Indeed it was, I developed some custom functions to get the username and other to apply conditional rendering of JSF components integrated into the bundled "rendered" attribute of JSF components (supported by standard, tomahawk & trinidad).
I'll be re-engineering the patch for such support.
I think it will be ideal if such functions could be included inside the androma-jsf-components library