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  1. JDK
  2. JDK-4894089

DN containing four backslashes in Java is retrieved with three backslashes

    Details

    • Subcomponent:
    • CPU:
      generic
    • OS:
      solaris_8, solaris_9, windows_2000

      Description


      Backslash is a special character in LDAP and has to be escaped, in order to
      be used literally in a Distinguished Name (RFC 2253).
      Retrieving DN from LDAP results in a string containing three (3) backslashes.

      The problem is easily reproducible:

      1. Testcase
      -----------
       The testcase consists of the following files:

      -rw-r--r-- 1 tl15687 sun 251 Jul 22 10:39 test_u.ldif
      -rw-r--r-- 1 tl15687 sun 3869 Jul 22 10:19 SearchTest.java

      % more test_u.ldif
      dn: uid=de-dus-mgh-m-02\\u0146221,ou=People,dc=commslab,dc=ldap,dc=com
      givenName: u0146221
      sn: 0146221
      uid: de-dus-mgh-m-02\\u0146221
      cn: Backslash Test
      objectClass: top
      objectClass: person
      objectClass: organizationalPerson
      objectClass: inetorgperson

      %

      % more SearchTest.java
       
      import java.util.Hashtable;

      import javax.naming.*;
      import javax.naming.directory.*;

      public class SearchTest {

        static int timelimit = 50000;
        static int sizelimit = 2000;
        static String baseDN= "uid=de-dus-mgh-m-02\\\\u0146221";
        static String user = "cn=Directory Manager";
          //please adjust to your settings
        static String password = "";
        static String providerURL =
           "ldap://lab147.germany:389/ou=People,dc=commslab,dc=ldap,dc=com";

        public static void main(String[] args) {

          InitialDirContext ctx = openContext();

          SearchControls searchControls = new SearchControls();
          searchControls.setTimeLimit(timelimit);
          searchControls.setCountLimit(sizelimit);
          searchControls.setSearchScope(SearchControls.SUBTREE_SCOPE);
          searchControls.setReturningObjFlag(true);
          searchControls.setDerefLinkFlag(false);

          //searchControls.setReturningAttributes(new String[] {"wpproperty"});

          try {

            NamingEnumeration answers =
               ctx.search("", baseDN, searchControls);

            if (answers == null) System.out.println("no answer record");
            else System.out.println("one or more records found");

            // set data bag

            while(answers.hasMore()) {
             // get the entry from the search

              SearchResult sr = (SearchResult) answers.next();

              String dn = sr.getName();
              System.out.println("Distinguished Name is " + dn);

              Attributes attrs = sr.getAttributes();
              // if there is no mapping read the attributes by physical name

              NamingEnumeration ae = attrs.getAll();
              while (ae.hasMore()) {
                Attribute oneAttribute = (Attribute)ae.next();
                // get attribute name
                String currentAttribute = oneAttribute.getID();
                if (oneAttribute != null) {
                  NamingEnumeration allValues = oneAttribute.getAll();
                  while (allValues.hasMore()) {
                    System.out.println(
                      currentAttribute+" = "+(String) allValues.next());
                  }
                }
              }//end while
            }
          }catch (NoInitialContextException e) {
             String logMessage =
                "ADAPTER: Test JNDI NoInitialContext Exception when "
                 +"reading subcontext. System Msg: " + e;
             System.out.println(logMessage);
        
          }catch(CommunicationException e) {
             String logMessage =
                "ADAPTER: Test JNDI Communication Exception when reading "
                +"subcontext. System Msg: " + e;
             System.out.println(logMessage);

          }catch (NamingException e) {
             System.out.println(
                "Adapter: Test JNDI Exception getting attributes, DN:"
                 +baseDN);
             System.out.println("System Msg: " +e);
          }
        }

        public static InitialDirContext openContext () {
          Hashtable env = new Hashtable();
              
          env.put(Context.INITIAL_CONTEXT_FACTORY,
                  "com.sun.jndi.ldap.LdapCtxFactory");
          env.put(Context.SECURITY_AUTHENTICATION, "simple");
          env.put(Context.SECURITY_PRINCIPAL, user);
          env.put(Context.SECURITY_CREDENTIALS, password);
          env.put(Context.PROVIDER_URL, providerURL);
          InitialDirContext ctx = null;
          try {
            ctx = new InitialDirContext(env);
          } catch (Exception e) {
            System.out.println("exception when trying to open connection "
                               +e.getMessage());
          }

          return ctx;
        }
      }


      2. Create LDAP entry
      --------------------
       lab147 is running iPlanet Directory Server 5.1 SP 2 (Solaris bundled
       product + patch):

      # ldapadd -h lab147 -D "cn=directory manager" -w [wiped] -f test_u.ldif
      adding new entry uid=de-dus-mgh-m-02\\u0146221,ou=People,dc=commslab,dc=ldap,dc=com

      #

      # ldapsearch -h lab147 -D "cn=directory manager" -b ou=People,dc=commslab,dc=ldap,dc=com uid=de*
      Bind Password:
      uid=de-dus-mgh-m-02\u0146220,ou=People,dc=commslab,dc=ldap,dc=com
      uid=de-dus-mgh-m-02\u0146220
      uid=de-dus-mgh-m-02u0146220
      objectClass=top
      objectClass=person
      objectClass=organizationalPerson
      objectClass=inetorgperson
      givenName=Dirk
      sn=Winkler
      cn=Dirk Winkler

      uid=de\\backslashtest,ou=People,dc=commslab,dc=ldap,dc=com
      givenName=Backslash
      sn=Test
      uid=de\\backslashtest
      uid=de\backslashtest
      cn=Backslash Test
      objectClass=top
      objectClass=person
      objectClass=organizationalPerson
      objectClass=inetorgperson

      uid=de-dus-mgh-m-02\\u0146221,ou=People,dc=commslab,dc=ldap,dc=com
      givenName=u0146221
      sn=0146221
      uid=de-dus-mgh-m-02\\u0146221
      uid=de-dus-mgh-m-02\u0146221
      cn=Backslash Test
      objectClass=top
      objectClass=person
      objectClass=organizationalPerson
      objectClass=inetorgperson
      #


      3. Compile and run
      ------------------
      % /j2sdk1_3_1_08/bin/java -version
      java version "1.3.1_08"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_08-b03)
      Java HotSpot(TM) Client VM (build 1.3.1_08-b03, mixed mode)
      % /j2sdk1_3_1_08/bin/javac SearchTest.java
      %
      % /j2sdk1_3_1_08/bin/java SearchTest
      one or more records found
      Distinguished Name is uid=de-dus-mgh-m-02\\\u0146221 <------- !!!!!
      uid = de-dus-mgh-m-02\\u0146221
      uid = de-dus-mgh-m-02\u0146221
      objectClass = top
      objectClass = person
      objectClass = organizationalPerson
      objectClass = inetorgperson
      givenName = u0146221
      sn = 0146221
      cn = Backslash Test
      %


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              • Assignee:
                Unassigned
                Reporter:
                thlenz Thomas Lenz (Inactive)
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