Hello,
i tried to do pre-authentication for my zimbra server so :
1. I install CAS Server (/opt/zimbra/webapps/cas-web) in the some machine zimbra
2. I add CAS Filter in my zimbra.web.xml.in :
------------------------------------------------------------------------
<filter>
<filter-name>CAS Filter</filter-name>
<filter-class>edu.yale.its.tp.cas.client.filter.CASFilter</filter-class>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.loginUrl</param-name>
<param-value>https://teggoinfo.tp:8443/cas-web/login</param-value>
</init-param>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.validateUrl </param-name>
<param-value>https://teggoinfo.tp:8443/cas-web/proxyValidate</param-value>
</init-param>
<init-param>
<param-name>edu.yale.its.tp.cas.client.filter.serverName</param-name>
<param-value>teggoinfo.tp:80</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>CAS Filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
----------------------------------------------------------------------------------------
3. I Configure my /opt/zimbra/tomcat/webapps/zimbra/preauth.jsp
----------------------------------------------------------------------------------------
<%@ page import="java.security.InvalidKeyException" %>
<%@ page import="java.security.NoSuchAlgorithmException" %>
<%@ page import="java.security.SecureRandom" %>
<%@ page import="java.util.HashMap" %>
<%@ page import="java.util.Map" %>
<%@ page import="java.util.Iterator" %>
<%@ page import="java.util.TreeSet" %>
<%@ page import="javax.crypto.Mac" %>
<%@ page import="javax.crypto.SecretKey" %>
<%!
public static final String DOMAIN_KEY = "2e8e64b8b1ae546ed139c3358bb5d0e9224be926bf8f5707d c94eeca31858632";
public static String generateRedirect(HttpServletRequest request, String name) {
HashMap params = new HashMap();
String ts = System.currentTimeMillis()+"";
params.put("account", name);
params.put("by", "name"); // needs to be part of hmac
params.put("timestamp", ts);
params.put("expires", "0"); // means use the default
String preAuth = computePreAuth(params, DOMAIN_KEY);
return request.getScheme()+"://"+request.getServerName()+":"+request.getServerPor t()+"/service/preauth/?" +
"account="+name+
"&by=name"+
"×tamp="+ts+
"&expires=0"+
"&preauth="+preAuth;
}
public static String computePreAuth(Map params, String key) {
TreeSet names = new TreeSet(params.keySet());
StringBuffer sb = new StringBuffer();
for (Iterator it=names.iterator(); it.hasNext()
{
if (sb.length() > 0) sb.append('|');
sb.append(params.get(it.next()));
}
return getHmac(sb.toString(), key.getBytes());
}
private static String getHmac(String data, byte[] key) {
try {
ByteKey bk = new ByteKey(key);
Mac mac = Mac.getInstance("HmacSHA1");
mac.init(bk);
return toHex(mac.doFinal(data.getBytes()));
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException("fatal error", e);
} catch (InvalidKeyException e) {
throw new RuntimeException("fatal error", e);
}
}
static class ByteKey implements SecretKey {
private byte[] mKey;
ByteKey(byte[] key) {
mKey = (byte[]) key.clone();;
}
public byte[] getEncoded() {
return mKey;
}
public String getAlgorithm() {
return "HmacSHA1";
}
public String getFormat() {
return "RAW";
}
}
public static String toHex(byte[] data) {
StringBuilder sb = new StringBuilder(data.length * 2);
for (int i=0; i<data.length; i++ ) {
sb.append(hex[(data[i] & 0xf0) >>> 4]);
sb.append(hex[data[i] & 0x0f] );
}
return sb.toString();
}
private static final char[] hex =
{ '0' , '1' , '2' , '3' , '4' , '5' , '6' , '7' ,
'8' , '9' , 'a' , 'b' , 'c' , 'd' , 'e' , 'f'};
%><%
String redirect = generateRedirect(request, "admin@teggoinfo.tp");
response.sendRedirect(redirect);
%>
<html>
<head>
<title>Pre-auth redirect</title>
</head>
<body>
You should never see this page.
</body>
</html>
but the problem is when i want to test
http://teggoinfo.tp/zimbra/preauth.jsp
i just have an empty page in my browser with the url:
https://teggoinfo.tp:8443/cas-web/lo...%2Fpreauth.jsp
any help ?
Bugzilla
Wiki
Source
Problem with preauth 
Linear Mode
