Hi.
You can to implement a JDBCRealm with client certificates modifying the
org.apache.catalina.realm.JDBCRealm class. You need add the public
Principal authenticate(X509Certificate[] cert) method. Inside, you have
to include the following lines:
import java.security.cert.X509Certificate;
Connection dbConnection = null;
try {
// Obtain DN from client certificate.
String dn = cert[0].getSubjectDN().getName();
// Ensure that we have an open database connection
dbConnection = open();
// Acquire a Principal object for this user
Principal principal = authenticate(dbConnection,
dn, dn);
// Release the database connection we just used
release(dbConnection);
// Return the Principal (if any)
return (principal);
} catch (SQLException e) {
// Log the problem for posterity
log(sm.getString("jdbcRealm.exception"), e);
// Close the connection so that it gets reopened next time
if (dbConnection != null)
close(dbConnection);
// Return "not authenticated" for this request
return (null);
}
In authenticate(dbConnection,dn,dn); -> first dn = name of user (login)
and second dn = credentials. These credentials can to be the OU of the
certificate, etc.
With the previous example you have to put in <role-name> of web.xml the
full DN, and you need to create a user in BD with username = DN full
and credentials = DN full.
Luck!!
-------------------------------------
At 16:44 13/03/2003 +0100, you wrote:
Hello,
is it correct that only Memory- and JNDIRealm can perform the mapping
between the DN included in a certificate and a users role?
Because of the lack of dynamic changes in MemoryRealm, i want to replace
it with a JDBCRealm. Is there any information available how to implement
a JDBCRealm that authenticates users by CLIENT-CERT.
thanks in advance
Patrick
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