public UserDTO doLdapAuthentication(UserDTO dto) throws Exception {
log.info("INSIDE LDAP AUTHENTICATION 2");
UserDTO ldapDTO = null;
String url = "ldap://172.18.20.0:10389";
Hashtable<String, String> env = new Hashtable<String, String>();
env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, url);
env.put(Context.SECURITY_AUTHENTICATION, "simple");
env.put(Context.SECURITY_PRINCIPAL, "uid=admin,ou=system");
env.put(Context.SECURITY_CREDENTIALS, "secret");
try {
ldapDTO = new UserDTO();
DirContext ctx = new InitialDirContext(env);
Attributes attrs = ctx.getAttributes("cn=" + dto.getUsername() + ",ou=users,ou=system");
Attribute userPassword = attrs.get("userPassword");
String ldapPasswordFromDB = new String((byte[]) userPassword.get());
String md5EncryptedPassword = encryptLdapPassword("md5", dto.getPassword());
if (md5EncryptedPassword.equalsIgnoreCase(ldapPasswordFromDB)) {
ldapDTO.setEmployeeId((String) (attrs.get("employeeNumber").get()));
ldapDTO.setEmployeeType((String) (attrs.get("employeeType").get()));
ldapDTO.setUsername((String) (attrs.get("cn").get()));
}
ctx.close();
} catch (Exception e) {
e.printStackTrace();
}
return ldapDTO;
}
