I'm trying to authenticate and then query our corporate LDAP using Spring LDAP and Spring security. I managed to make authentication work but when I attempt to run search I always get the following exception
In order to perform this operation a successful bind must be completed on the connection
After much research I have a theory that after I authenticate and before I can query I need to bind to connection. I just don't know what and how?
Just to mention - I can successfully browse and search our LDAP using JXplorer so my parameters are correct.
Here's section of my securityContext.xml
<security:http auto-config='true'>
<security:intercept-url pattern="/reports/goodbye.html"
access="ROLE_LOGOUT" />
<security:intercept-url pattern="/reports/**" access="ROLE_USER" />
<security:http-basic />
<security:logout logout-url="/reports/logout"
logout-success-url="/reports/goodbye.html" />
</security:http>
<security:ldap-server url="ldap://s140.foo.com:1389/dc=td,dc=foo,dc=com" />
<security:authentication-manager>
<security:authentication-provider ref="ldapAuthProvider">
</security:authentication-provider>
</security:authentication-manager>
<!-- Security beans -->
<bean id="contextSource" class="org.springframework.security.ldap.DefaultSpringSecurityContextSource">
<constructor-arg value="ldap://s140.foo.com:1389/dc=td,dc=foo,dc=com" />
</bean>
<bean id="ldapAuthProvider"
class="org.springframework.security.ldap.authentication.LdapAuthenticationProvider">
<constructor-arg>
<bean class="foo.bar.reporting.server.security.ldap.LdapAuthenticatorImpl">
<property name="contextFactory" ref="contextSource" />
<property name="principalPrefix" value="TD\" />
<property name="employee" ref="employee"></property>
</bean>
</constructor-arg>
<constructor-arg>
<bean class="foo.bar.reporting.server.security.ldap.LdapAuthoritiesPopulator" />
</constructor-arg>
</bean>
<!-- DAOs -->
<bean id="ldapTemplate" class="org.springframework.ldap.core.LdapTemplate">
<constructor-arg ref="contextSource" />
Here's code snippet from LdapAuthenticatorImpl
that performs authentication. No problem here:
@Override
public DirContextOperations authenticate(final Authentication authentication) {
// Grab the username and password out of the authentication object.
final String name = authentication.getName();
final String principal = this.principalPrefix + name;
String password = "";
if (authentication.getCredentials() != null) {
password = authentication.getCredentials().toString();
}
if (!("".equals(principal.trim())) && !("".equals(password.trim()))) {
final InitialLdapContext ldapContext = (InitialLdapContext)
this.contextFactory.getContext(principal, password);
// We need to pass the context back out, so that the auth provider
// can add it to the Authentication object.
final DirContextOperations authAdapter = new DirContextAdapter();
authAdapter.addAttributeValue("ldapContext", ldapContext);
this.employee.setqId(name);
return authAdapter;
} else {
throw new BadCredentialsException("Blank username and/or password!");
}
}
And here's another code snippet from EmployeeDao
with my futile attempt to query:
public List<Employee> queryEmployeesByName(String query)
throws BARServerException {
AndFilter filter = new AndFilter();
filter.and(new EqualsFilter("objectclass", "person"));
filter.and(new WhitespaceWildcardsFilter("cn", query));
try {
// the following line throws bind exception
List result = ldapTemplate.search(BASE, filter.encode(),
new AttributesMapper() {
@Override
public Employee mapFromAttributes(Attributes attrs)
throws NamingException {
Employee emp = new Employee((String) attrs.get("cn").get(),
(String) attrs.get("cn").get(),
(String) attrs.get("cn").get());
return emp;
}
});
return result;
} catch (Exception e) {
throw new BarServerException("Failed to query LDAP", e);
}
}
And lastly - the exception I'm getting
org.springframework.ldap.UncategorizedLdapException:
Uncategorized exception occured during LDAP processing; nested exception is
javax.naming.NamingException: [LDAP: error code 1 - 00000000: LdapErr:
DSID-0C090627, comment: In order to perform this operation a successful bind
must be completed on the connection., data 0, vece]; remaining name
'DC=TD,DC=FOO,DC=COM'