Simple gravatar.tag for JSP

gravatar.tag

<%@ tag import="java.util.Formatter"
%><%@ tag import="java.security.MessageDigest"
%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"
%><%@ attribute name="email" required="true" type="java.lang.String"
%><%@ attribute name="sz" required="false" type="java.lang.Integer"
%><c:if test="${empty sz}"><c:set var="sz">20</c:set></c:if><c:choose
><c:when test="${empty email}"><c:set var="hash">00000000000000000000000000000000</c:set></c:when><c:otherwise
><c:set var="hash"><%=javax.xml.bind.DatatypeConverter.printHexBinary(MessageDigest.getInstance("MD5").digest(email.toLowerCase().trim().getBytes("UTF-8"))).trim().toLowerCase()%></c:set></c:otherwise
></c:choose><img class="gravatarimg${sz}" src="http://www.gravatar.com/avatar/${hash}?s=${sz}&d=mm" alt="">

If only we had email in web page of TeamCity we could have implemented this in JS...

Maybe it's possible to use email from sso header

Or static ui extension which adds simple json with email into all pages.