Over the past year or so a number of folks have posted questions for
suggestions on how to deal with non-ascii data. We recently addressed
this ourselves by adding support for passwords containing non-ascii
characters. Although our LDAP infrastructure supports it, CAS did
not. I'd like to sketch out the points of our solution since I don't
think it's been discussed fully anywhere. Perhaps this can be moved
to the wiki if there's interest.
1. Ensure pageEncoding of login form JSP is UTF-8, <%@ page
pageEncoding="UTF-8" %>
2. Ensure the HTML content type is UTF-8:
<%@ page contentType="text/html; charset=UTF-8" %>
and
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
...
</head>
(perhaps this is redundant, but it works nonetheless)
3. Set the request characterEncoding property to UTF-8:
request.setCharacterEncoding("UTF-8");
The last point is one I had never heard discussed and was essential to
supporting username/password credentials containing non-ascii
characters. We took a recommendation from
http://wiki.apache.org/tomcat/Tomcat/UTF-8 to implement setting
character encoding as a filter,
http://code.google.com/p/vt-middleware/wiki/vtservletfilters#CharacterEncodingFilter.
This approach appears to work well.
Hope that helps,
M
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