| Stefan Zoerner 2005-08-04, 5:45 pm |
| Hi all!
I have a problem with binary data within directory entries. If I import an
inetOrgPerson with jpegPhoto into the Apache DS (LDIF format, binary data
is Base64), the image data is damaged in the entry (at least when it is
read out). I tried different tools (import with LDAP Administrator from
Softerra, native ldapadd from Solaris 9, ...) the result was always the
same. Wenn I import the same file in another Directory Server (e.g.
OpenLDAP), it works fine.
I decided to check it with a little TestCase that uses JNDI to write some
random binary data to the directory, read it back and check whether
everything is ok.
My test looked like this:
package simple;
import java.util.Random;
import javax.naming.NamingException;
import javax.naming.directory.Attribute;
import javax.naming.directory.Attributes;
import javax.naming.directory.BasicAttribute;
import javax.naming.directory.BasicAttributes;
import javax.naming.directory.DirContext;
import javax.naming.directory.InitialDirContext;
import junit.framework.TestCase;
public class BinaryTest extends TestCase {
public static String TORI_DN = "cn=Tori Amos";
DirContext ctx;
protected void setUp() throws Exception {
ctx = new InitialDirContext();
}
public void testToriWithFunData() throws NamingException {
// Create attributes for test entry
Attribute ocls = new BasicAttribute("objectclass");
ocls.add("top");
ocls.add("person");
ocls.add("organizationalPerson");
ocls.add("inetOrgPerson");
Attributes attrs = new BasicAttributes();
attrs.put(ocls);
attrs.put("sn", "Amos");
attrs.put("cn", "Tori Amos");
// Random data for jpegPhoto, 64k
byte[] sourceData = new byte[64 * 1024];
Random r = new Random(0);
for (int i = 0; i < sourceData.length; i++) {
sourceData[i] = (byte) r.nextInt();
}
attrs.put("jpegPhoto", sourceData);
// Create entry
ctx.bind(TORI_DN, null, attrs);
// Read same entry and compare data bytewise
Attributes readAttrs = ctx.getAttributes(TORI_DN);
Attribute image = readAttrs.get("jpegPhoto");
byte[] imageBytes = (byte[]) image.get();
for (int i = 0; i < imageBytes.length; i++) {
assertEquals("Byte number " + i, sourceData[i],
imageBytes[i]);
}
}
protected void tearDown() throws Exception {
// Try to delete Entry
ctx.destroySubcontext(TORI_DN);
}
}
My jndi.properties looked like this:
java.naming.factory.initial=com.sun.jndi.ldap.LdapCtxFactory
# Apache@magritte
java.naming.provider.url=ldap://magritte:10389/ou=system
java.naming.security.principal=uid=admin,ou=system
java.naming.security.credentials=******
java.naming.security.authentication=simple
I'm not sure whether this is comparable to my original LDIF-Problem. But
at least the test fails with Apache DS 0.9.1:
junit.framework.AssertionFailedError: Byte number 47 expected:<-112> but
was:<63>
at junit.framework.Assert.fail(Assert.java:47)
at junit.framework.Assert.failNotEquals(Assert.java:282)
at junit.framework.Assert.assertEquals(Assert.java:64)
at junit.framework.Assert.assertEquals(Assert.java:162)
at simple.BinaryTest.testToriWithFunData(BinaryTest.java(Compiled
Code))
The same test works with Sun Java System Directory Server 5.2, for example
(I checked other LDAP servers as well). It also works if I only write
zeros in the array ...
I do not know whether it is stored wrong in the directory, Or if the read
operation fails. This would be an interesting thing to check out, I guess
....
Any suggestions? Configuration error? I used the default server.xml from
svn and ApacheDS 0.9.1 on a Windows XP workstation (JDK 1.5.0_3), Client
was Softerra@WindowsXP and ldapadd@Solaris9/SPARC.
Should I open a bug at JIRA? I volunteer for further investigation on this
(I'm quit interested in images within my entries ;-). But I need some
clues where to look (until now I only touched the surface of your
directory server).
Greetings from Hamburg,
Stefan
|