Chapter 212. LDAP Component Available as of Camel version 1.5 The ldap component allows you to perform searches in LDAP servers using filters as the message payload. This component uses standard JNDI ( javax.naming package) to access the server. Maven users will need to add the following dependency to their pom.xml for this component: <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-ldap</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency> 212.1. URI format ldap:ldapServerBean[?options] The ldapServerBean portion of the URI refers to a DirContext bean in the registry. The LDAP component only supports producer endpoints, which means that an ldap URI cannot appear in the from at the start of a route. You can append query options to the URI in the following format, ?option=value&option=value&... 212.2. Options The LDAP component has no options. The LDAP endpoint is configured using URI syntax: with the following path and query parameters: 212.2.1. Path Parameters (1 parameters): Name Description Default Type dirContextName Required Name of either a javax.naming.directory.DirContext, or java.util.Hashtable, or Map bean to lookup in the registry. If the bean is either a Hashtable or Map then a new javax.naming.directory.DirContext instance is created for each use. If the bean is a javax.naming.directory.DirContext then the bean is used as given. The latter may not be possible in all situations where the javax.naming.directory.DirContext must not be shared, and in those situations it can be better to use java.util.Hashtable or Map instead. String 212.2.2. Query Parameters (5 parameters): Name Description Default Type base (producer) The base DN for searches. ou=system String pageSize (producer) When specified the ldap module uses paging to retrieve all results (most LDAP Servers throw an exception when trying to retrieve more than 1000 entries in one query). To be able to use this a LdapContext (subclass of DirContext) has to be passed in as ldapServerBean (otherwise an exception is thrown) Integer returnedAttributes (producer) Comma-separated list of attributes that should be set in each entry of the result String scope (producer) Specifies how deeply to search the tree of entries, starting at the base DN. subtree String synchronous (advanced) Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported). false boolean 212.3. Spring Boot Auto-Configuration The component supports 2 options, which are listed below. Name Description Default Type camel.component.ldap.enabled Enable ldap component true Boolean camel.component.ldap.resolve-property-placeholders Whether the component should resolve property placeholders on itself when starting. Only properties which are of String type can use property placeholders. true Boolean 212.4. Result The result is returned in the Out body as a ArrayList<javax.naming.directory.SearchResult> object. 212.5. DirContext The URI, ldap:ldapserver , references a Spring bean with the ID, ldapserver . The ldapserver bean may be defined as follows: <bean id="ldapserver" class="javax.naming.directory.InitialDirContext" scope="prototype"> <constructor-arg> <props> <prop key="java.naming.factory.initial">com.sun.jndi.ldap.LdapCtxFactory</prop> <prop key="java.naming.provider.url">ldap://localhost:10389</prop> <prop key="java.naming.security.authentication">none</prop> </props> </constructor-arg> </bean> The preceding example declares a regular Sun based LDAP DirContext that connects anonymously to a locally hosted LDAP server. Note DirContext objects are not required to support concurrency by contract. It is therefore important that the directory context is declared with the setting, scope="prototype" , in the bean definition or that the context supports concurrency. In the Spring framework, prototype scoped objects are instantiated each time they are looked up. 212.6. Samples Following on from the Spring configuration above, the code sample below sends an LDAP request to filter search a group for a member. The Common Name is then extracted from the response. ProducerTemplate<Exchange> template = exchange .getContext().createProducerTemplate(); Collection<?> results = (Collection<?>) (template .sendBody( "ldap:ldapserver?base=ou=mygroup,ou=groups,ou=system", "(member=uid=huntc,ou=users,ou=system)")); if (results.size() > 0) { // Extract what we need from the device's profile Iterator<?> resultIter = results.iterator(); SearchResult searchResult = (SearchResult) resultIter .(); Attributes attributes = searchResult .getAttributes(); Attribute deviceCNAttr = attributes.get("cn"); String deviceCN = (String) deviceCNAttr.get(); ... If no specific filter is required - for example, you just need to look up a single entry - specify a wildcard filter expression. For example, if the LDAP entry has a Common Name, use a filter expression like: (cn=*) 212.6.1. Binding using credentials A Camel end user donated this sample code he used to bind to the ldap server using credentials. Properties props = new Properties(); props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); props.setProperty(Context.PROVIDER_URL, "ldap://localhost:389"); props.setProperty(Context.URL_PKG_PREFIXES, "com.sun.jndi.url"); props.setProperty(Context.REFERRAL, "ignore"); props.setProperty(Context.SECURITY_AUTHENTICATION, "simple"); props.setProperty(Context.SECURITY_PRINCIPAL, "cn=Manager"); props.setProperty(Context.SECURITY_CREDENTIALS, "secret"); SimpleRegistry reg = new SimpleRegistry(); reg.put("myldap", new InitialLdapContext(props, null)); CamelContext context = new DefaultCamelContext(reg); context.addRoutes( new RouteBuilder() { public void configure() throws Exception { from("direct:start").to("ldap:myldap?base=ou=test"); } } ); context.start(); ProducerTemplate template = context.createProducerTemplate(); Endpoint endpoint = context.getEndpoint("direct:start"); Exchange exchange = endpoint.createExchange(); exchange.getIn().setBody("(uid=test)"); Exchange out = template.send(endpoint, exchange); Collection<SearchResult> data = out.getOut().getBody(Collection.class); assert data != null; assert !data.isEmpty(); System.out.println(out.getOut().getBody()); context.stop(); 212.7. Configuring SSL All required is to create a custom socket factory and reference it in the InitialDirContext bean - see below sample. SSL Configuration <?xml version="1.0" encoding="UTF-8"?> <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd"> <sslContextParameters xmlns="http://camel.apache.org/schema/blueprint" id="sslContextParameters"> <keyManagers keyPassword="{{keystore.pwd}}"> <keyStore resource="{{keystore.url}}" password="{{keystore.pwd}}"/> </keyManagers> </sslContextParameters> <bean id="customSocketFactory" class="zotix.co.util.CustomSocketFactory"> <argument ref="sslContextParameters" /> </bean> <bean id="ldapserver" class="javax.naming.directory.InitialDirContext" scope="prototype"> <argument> <props> <prop key="java.naming.factory.initial" value="com.sun.jndi.ldap.LdapCtxFactory"/> <prop key="java.naming.provider.url" value="ldaps://lab.zotix.co:636"/> <prop key="java.naming.security.protocol" value="ssl"/> <prop key="java.naming.security.authentication" value="simple" /> <prop key="java.naming.security.principal" value="cn=Manager,dc=example,dc=com"/> <prop key="java.naming.security.credentials" value="passw0rd"/> <prop key="java.naming.ldap.factory.socket" value="zotix.co.util.CustomSocketFactory"/> </props> </argument> </bean> </blueprint> Custom Socket Factory import org.apache.camel.util.jsse.SSLContextParameters; import javax.net.SocketFactory; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManagerFactory; import java.io.IOException; import java.net.InetAddress; import java.net.Socket; import java.security.KeyStore; /** * The CustomSocketFactory. Loads the KeyStore and creates an instance of SSLSocketFactory */ public class CustomSocketFactory extends SSLSocketFactory { private static SSLSocketFactory socketFactory; /** * Called by the getDefault() method. */ public CustomSocketFactory() { } /** * Called by Blueprint DI to initialise an instance of SocketFactory * * @param sslContextParameters */ public CustomSocketFactory(SSLContextParameters sslContextParameters) { try { KeyStore keyStore = sslContextParameters.getKeyManagers().getKeyStore().createKeyStore(); TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509"); tmf.init(keyStore); SSLContext ctx = SSLContext.getInstance("TLS"); ctx.init(null, tmf.getTrustManagers(), null); socketFactory = ctx.getSocketFactory(); } catch (Exception ex) { ex.printStackTrace(System.err); /* handle exception */ } } /** * Getter for the SocketFactory * * @return */ public static SocketFactory getDefault() { return new CustomSocketFactory(); } @Override public String[] getDefaultCipherSuites() { return socketFactory.getDefaultCipherSuites(); } @Override public String[] getSupportedCipherSuites() { return socketFactory.getSupportedCipherSuites(); } @Override public Socket createSocket(Socket socket, String string, int i, boolean bln) throws IOException { return socketFactory.createSocket(socket, string, i, bln); } @Override public Socket createSocket(String string, int i) throws IOException { return socketFactory.createSocket(string, i); } @Override public Socket createSocket(String string, int i, InetAddress ia, int i1) throws IOException { return socketFactory.createSocket(string, i, ia, i1); } @Override public Socket createSocket(InetAddress ia, int i) throws IOException { return socketFactory.createSocket(ia, i); } @Override public Socket createSocket(InetAddress ia, int i, InetAddress ia1, int i1) throws IOException { return socketFactory.createSocket(ia, i, ia1, i1); } } 212.8. See Also Configuring Camel Component Endpoint Getting Started

Commands:
<dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-ldap</artifactId> <version>x.x.x</version> <!-- use the same version as your Camel core version --> </dependency>
ldap:ldapServerBean[?options]
ldap:dirContextName
<bean id="ldapserver" class="javax.naming.directory.InitialDirContext" scope="prototype"> <constructor-arg> <props> <prop key="java.naming.factory.initial">com.sun.jndi.ldap.LdapCtxFactory</prop> <prop key="java.naming.provider.url">ldap://localhost:10389</prop> <prop key="java.naming.security.authentication">none</prop> </props> </constructor-arg> </bean>
ProducerTemplate<Exchange> template = exchange .getContext().createProducerTemplate(); Collection<?> results = (Collection<?>) (template .sendBody( "ldap:ldapserver?base=ou=mygroup,ou=groups,ou=system", "(member=uid=huntc,ou=users,ou=system)")); if (results.size() > 0) { // Extract what we need from the device's profile Iterator<?> resultIter = results.iterator(); SearchResult searchResult = (SearchResult) resultIter .next(); Attributes attributes = searchResult .getAttributes(); Attribute deviceCNAttr = attributes.get("cn"); String deviceCN = (String) deviceCNAttr.get();
(cn=*)
Properties props = new Properties(); props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory"); props.setProperty(Context.PROVIDER_URL, "ldap://localhost:389"); props.setProperty(Context.URL_PKG_PREFIXES, "com.sun.jndi.url"); props.setProperty(Context.REFERRAL, "ignore"); props.setProperty(Context.SECURITY_AUTHENTICATION, "simple"); props.setProperty(Context.SECURITY_PRINCIPAL, "cn=Manager"); props.setProperty(Context.SECURITY_CREDENTIALS, "secret"); SimpleRegistry reg = new SimpleRegistry(); reg.put("myldap", new InitialLdapContext(props, null)); CamelContext context = new DefaultCamelContext(reg); context.addRoutes( new RouteBuilder() { public void configure() throws Exception { from("direct:start").to("ldap:myldap?base=ou=test"); } } ); context.start(); ProducerTemplate template = context.createProducerTemplate(); Endpoint endpoint = context.getEndpoint("direct:start"); Exchange exchange = endpoint.createExchange(); exchange.getIn().setBody("(uid=test)"); Exchange out = template.send(endpoint, exchange); Collection<SearchResult> data = out.getOut().getBody(Collection.class); assert data != null; assert !data.isEmpty(); System.out.println(out.getOut().getBody()); context.stop();
<?xml version="1.0" encoding="UTF-8"?> <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd http://camel.apache.org/schema/blueprint http://camel.apache.org/schema/blueprint/camel-blueprint.xsd"> <sslContextParameters xmlns="http://camel.apache.org/schema/blueprint" id="sslContextParameters"> <keyManagers keyPassword="{{keystore.pwd}}"> <keyStore resource="{{keystore.url}}" password="{{keystore.pwd}}"/> </keyManagers> </sslContextParameters> <bean id="customSocketFactory" class="zotix.co.util.CustomSocketFactory"> <argument ref="sslContextParameters" /> </bean> <bean id="ldapserver" class="javax.naming.directory.InitialDirContext" scope="prototype"> <argument> <props> <prop key="java.naming.factory.initial" value="com.sun.jndi.ldap.LdapCtxFactory"/> <prop key="java.naming.provider.url" value="ldaps://lab.zotix.co:636"/> <prop key="java.naming.security.protocol" value="ssl"/> <prop key="java.naming.security.authentication" value="simple" /> <prop key="java.naming.security.principal" value="cn=Manager,dc=example,dc=com"/> <prop key="java.naming.security.credentials" value="passw0rd"/> <prop key="java.naming.ldap.factory.socket" value="zotix.co.util.CustomSocketFactory"/> </props> </argument> </bean> </blueprint>
import org.apache.camel.util.jsse.SSLContextParameters; import javax.net.SocketFactory; import javax.net.ssl.SSLContext; import javax.net.ssl.SSLSocketFactory; import javax.net.ssl.TrustManagerFactory; import java.io.IOException; import java.net.InetAddress; import java.net.Socket; import java.security.KeyStore; /** * The CustomSocketFactory. Loads the KeyStore and creates an instance of SSLSocketFactory */ public class CustomSocketFactory extends SSLSocketFactory { private static SSLSocketFactory socketFactory; /** * Called by the getDefault() method. */ public CustomSocketFactory() { } /** * Called by Blueprint DI to initialise an instance of SocketFactory * * @param sslContextParameters */ public CustomSocketFactory(SSLContextParameters sslContextParameters) { try { KeyStore keyStore = sslContextParameters.getKeyManagers().getKeyStore().createKeyStore(); TrustManagerFactory tmf = TrustManagerFactory.getInstance("SunX509"); tmf.init(keyStore); SSLContext ctx = SSLContext.getInstance("TLS"); ctx.init(null, tmf.getTrustManagers(), null); socketFactory = ctx.getSocketFactory(); } catch (Exception ex) { ex.printStackTrace(System.err); /* handle exception */ } } /** * Getter for the SocketFactory * * @return */ public static SocketFactory getDefault() { return new CustomSocketFactory(); } @Override public String[] getDefaultCipherSuites() { return socketFactory.getDefaultCipherSuites(); } @Override public String[] getSupportedCipherSuites() { return socketFactory.getSupportedCipherSuites(); } @Override public Socket createSocket(Socket socket, String string, int i, boolean bln) throws IOException { return socketFactory.createSocket(socket, string, i, bln); } @Override public Socket createSocket(String string, int i) throws IOException { return socketFactory.createSocket(string, i); } @Override public Socket createSocket(String string, int i, InetAddress ia, int i1) throws IOException { return socketFactory.createSocket(string, i, ia, i1); } @Override public Socket createSocket(InetAddress ia, int i) throws IOException { return socketFactory.createSocket(ia, i); } @Override public Socket createSocket(InetAddress ia, int i, InetAddress ia1, int i1) throws IOException { return socketFactory.createSocket(ia, i, ia1, i1); } }