SEC-1181: DNS helper classes, will primarily be use for lookup of Active Directory servers.

2009-09-02 14:29:35 +00:00
parent 245fc96137
commit 58ee9a364e
6 changed files with 486 additions and 0 deletions
--- a/core/src/test/java/org/springframework/security/remoting/dns/JndiDnsResolverTest.java
+++ b/core/src/test/java/org/springframework/security/remoting/dns/JndiDnsResolverTest.java
@@ -0,0 +1,120 @@
+/*
+ * Copyright 2009 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.security.remoting.dns;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
+
+import javax.naming.NameNotFoundException;
+import javax.naming.NamingException;
+import javax.naming.directory.Attributes;
+import javax.naming.directory.BasicAttribute;
+import javax.naming.directory.BasicAttributes;
+import javax.naming.directory.DirContext;
+
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * 
+ * @author Mike Wiesner
+ * @since 3.0
+ * @version $Id$
+ */
+public class JndiDnsResolverTest {
+	
+	private JndiDnsResolver dnsResolver;
+	private InitialContextFactory contextFactory;
+	private DirContext context;
+	
+	@Before
+	public void setup() {
+		contextFactory = mock(InitialContextFactory.class);
+		context = mock(DirContext.class);
+		dnsResolver = new JndiDnsResolver();
+		dnsResolver.setCtxFactory(contextFactory);
+		when(contextFactory.getCtx()).thenReturn(context);
+	}
+	
+	@Test
+	public void testResolveIpAddress() throws Exception {
+		Attributes records = new BasicAttributes("A","63.246.7.80");	
+	
+		when(context.getAttributes("www.springsource.com", new String[] {"A"})).thenReturn(records);
+		
+		String ipAddress = dnsResolver.resolveIpAddress("www.springsource.com");
+		assertEquals("63.246.7.80", ipAddress);
+	}
+	
+	@Test(expected=DnsEntryNotFoundException.class)
+	public void testResolveIpAddressNotExisting() throws Exception {
+		when(context.getAttributes(any(String.class), any(String[].class))).thenThrow(new NameNotFoundException("not found"));
+		
+		dnsResolver.resolveIpAddress("notexisting.ansdansdugiuzgguzgioansdiandwq.foo");
+	}
+	
+	@Test
+	public void testResolveServiceEntry() throws Exception {
+		BasicAttributes records = createSrvRecords();
+		
+		when(context.getAttributes("_ldap._tcp.springsource.com", new String[] {"SRV"})).thenReturn(records);
+		
+		String hostname = dnsResolver.resolveServiceEntry("ldap", "springsource.com");
+		assertEquals("kdc.springsource.com", hostname);
+	}
+
+	
+	@Test(expected=DnsEntryNotFoundException.class)
+	public void testResolveServiceEntryNotExisting() throws Exception {
+		when(context.getAttributes(any(String.class), any(String[].class))).thenThrow(new NameNotFoundException("not found"));
+		
+		dnsResolver.resolveServiceEntry("wrong", "secpod.de");
+	}
+	
+	@Test
+	public void testResolveServiceIpAddress() throws Exception {
+		BasicAttributes srvRecords = createSrvRecords();
+		BasicAttributes aRecords = new BasicAttributes("A", "63.246.7.80");
+		when(context.getAttributes("_ldap._tcp.springsource.com", new String[] {"SRV"})).thenReturn(srvRecords);
+		when(context.getAttributes("kdc.springsource.com", new String[] {"A"})).thenReturn(aRecords);
+		
+		String ipAddress = dnsResolver.resolveServiceIpAddress("ldap", "springsource.com");
+		assertEquals("63.246.7.80", ipAddress);
+	}
+	
+	@Test(expected=DnsLookupException.class)
+	public void testUnknowError() throws Exception {
+		when(context.getAttributes(any(String.class), any(String[].class))).thenThrow(new NamingException("error"));
+		dnsResolver.resolveIpAddress("");
+	}
+
+	
+
+	private BasicAttributes createSrvRecords() {
+		BasicAttributes records = new BasicAttributes();
+		BasicAttribute record = new BasicAttribute("SRV");
+		// the structure of the service records is:
+		// priority weight port hostname
+		// for more information: http://en.wikipedia.org/wiki/SRV_record
+		record.add("20 80 389 kdc3.springsource.com.");
+		record.add("10 70 389 kdc.springsource.com.");
+		record.add("20 20 389 kdc4.springsource.com.");
+		record.add("10 30 389 kdc2.springsource.com");
+		records.put(record);
+		return records;
+	}
+}