Re: How to connect to LDAP server on Geronimo from an LDAP client?

[Phani Madgula]

Hi Hernan/Aaron

 

I developed a small application that uses pure programmatic security login, using Nescape Java LDAP SDK.

When I store password in MD5/SHA, I applied corresponding hashing on password sent by user and compared with the passoword retrieved from the LDAP server. To know how the password is stored in LDAP, we can check for prefix "{md5}" for MD5, and "{sha}" for SHA.

The following is the code snippet

 

     String   uname  = req.getParameter("userName");
     String   password   = req.getParameter("password");
 

     boolean loginSucceed = false;

   String hashMethod = "PLAIN";
   String hashedPassword = password;

   String ldapPassword = getLdapPassword(uname); //Retrieve password from LDAP for the user
   if(ldapPassword.startsWith("{md5}")){
    hashMethod = "MD5";
   }else if(ldapPassword.startsWith ("{sha}")){
    hashMethod = "SHA";
   }

   if(hashMethod.equals("SHA")){
    hashedPassword = getSHAHashedPassword(password);
   }else if(hashMethod.equals("MD5")){
    hashedPassword = getMD5HashedPassword(password);
   }

   System.out.println("AuthenticateServlet:service:hashedPassword:"+hashedPassword);
   System.out.println("AuthenticateServlet:service:ldapPassword:"+ldapPassword);
   if(hashedPassword.equals (ldapPassword))loginSucceed=true;

.

 

So, with programmatic login, we can solve the problem. I guess hashing is not part of specification. With declarative security management, I guess, current application login implementation must consider MD5/SHA also.

 

If the above points are valid, we can have a JIRA on this..?

 

 

Thanks

phani

 

On 1/27/06, Phani Madgula <[EMAIL PROTECTED]> wrote:

Hi Hernan/Aaron

 

The following is the export of my LDAP entries. I could export using JXplorer. I also used another LDAP client called LDAP Browser/Editor 2.8.2.

 

In the below LDAP export, there are two users balaji1, balaji2 whose passwords are MD5 hashed.

Where as for other users, the passwords are stored PLAIN. So, with balaji1/balaji2, I am getting "Userid/password wrong" message in the browser while authenticating.

 

I am trying to find the answers for Aaron's questions. I will update soon.

 

version: 1
dn: ou=system
objectClass: organizationalUnit
objectClass: top
ou: system
userPassword:: e21kNX1JU012S1hwWHBhZERpVW9PU29BZnd3PT0=

dn: uid=admin,ou=system
objectClass: inetOrgPerson
objectClass: organizationalPerson
objectClass: person
objectClass: top
cn: system administrator
displayName: Directory Superuser
sn: administrator
uid: admin
userPassword:: c2VjcmV0

dn: ou=users,ou=system
objectClass: organizationalUnit
objectClass: top
ou: users

dn: uid=system,ou=users,ou=system
objectclass: inetOrgPerson
objectclass: organizationalPerson
objectclass: person
objectclass: top
cn: John Doe
facsimiletelephonenumber: +1 408 555 5556
givenname: John
l: Las Vegas
mail: [EMAIL PROTECTED]
ou: People
ou: Human Resources
roomnumber: 4613
sn: Doe
telephonenumber: +1 408 555 5555
uid: system
userPassword:: bWFuYWdlcg==

dn: uid=user1,ou=users,ou=system
objectclass: inetOrgPerson
objectclass: organizationalPerson
objectclass: person
objectclass: top
cn: User
facsimiletelephonenumber: +1 408 555 5556
givenname: User1
l: Las Vegas
mail: [EMAIL PROTECTED]
ou: People
ou: Human Resources
roomnumber: 4613
sn: One
telephonenumber: +1 408 555 5555
uid: user1
userPassword:: dXNlcjE=

dn: uid=user2,ou=users,ou=system
objectclass: inetOrgPerson
objectclass: organizationalPerson
objectclass: person
objectclass: top
cn: User
facsimiletelephonenumber: +1 408 555 5556
givenname: User2
l: Las Vegas
mail: [EMAIL PROTECTED]
ou: People
ou: Human Resources
roomnumber: 4613
sn: Two
telephonenumber: +1 408 555 5555
uid: user2
userPassword:: dXNlcjI=

dn: uid=admin,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: admin
sn: admin
uid: admin
userPassword:: YWRtaW4=

dn: uid=user3,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: user3
sn: user3
uid: user3
userPassword:: dXNlcjM=

dn: uid=user4,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: user4
sn: user4
uid: user4
userPassword:: dXNlcjQ=

dn: uid=phani1,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: phani1
sn: phani1
uid: phani1
userPassword:: cGhhbmkx

dn: uid=balaji1,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: balaji1
sn: balaji1
uid: balaji1
userPassword:: e21kNX1wRWdLL2ZSODZXQmlPU1FZYmdFQUpBPT0=

dn: uid=balaji2,ou=users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: balaji2
sn: balaji2
uid: balaji2
userPassword:: e21kNX1zdXNnSkwybWx0V0ZrZlpWWjk3WnBBPT0=

dn: ou=groups,ou=system
objectClass: organizationalUnit
objectClass: top
ou: groups

dn: cn=admin,ou=groups,ou=system
objectClass: groupOfUniqueNames
cn: admin
uniqueMember: uid=system,ou=users,ou=system

dn: cn=guest,ou=groups,ou=system
objectClass: groupOfUniqueNames
cn: guest
uniqueMember: uid=user2,ou=users,ou=system
uniqueMember: uid=user1,ou=users,ou=system

dn: ou=configuration,ou=system
objectClass: organizationalUnit
objectClass: top
ou: configuration

dn: ou=partitions,ou=configuration,ou=system
objectClass: organizationalUnit
objectClass: top
ou: partitions

dn: ou=services,ou=configuration,ou=system
objectClass: organizationalUnit
objectClass: top
ou: services

dn: ou=interceptors,ou=configuration,ou=system
objectClass: organizationalUnit
objectClass: top
ou: interceptors

dn: prefNodeName=sysPrefRoot,ou=system
objectClass: extensibleObject
prefNodeName: sysPrefRoot

dn: uid=phani-users,ou=system
objectClass: top
objectClass: person
objectClass: organizationalPerson
objectClass: inetOrgPerson
cn: user1
sn: user1
uid: phani-users

 

Thanks

phani

 

 

 

On 1/26/06, Hernan Cunico <[EMAIL PROTECTED] > wrote:

Hi Phani,
Can you export an LDIF so we can see your LDAP conf? I think the problem may be there.

So far I have been able to add new users and alter the groups with my other LDAP client. Jxplorer is
giving me some problems while importing/updating from LDIFs.

Can you summarize the steps you do for adding the user?

Cheers!
Hernan

Phani Madgula wrote:
> Hi Hernan,
>
> I am using AG1.0. I tried with other LDAP clients.
> I observed that, some clients store passwords in SHA, by deafult.
> The authentication is failing in either case [MD5 or SHA]
>
> Thanks
> phani
>
>
> On 1/25/06, *Hernan Cunico* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED] >> wrote:
>
>     Hi Phani,
>     So far I am only getting this error while using Jxplorer. What other
>     client have you tried?
>
>     Cheers!
>     Hernan
>
>     Hernan Cunico wrote:
>      >
>      >> Hi Phani,
>      >> sorry for the delay in the reply. I am having some issues too while
>      >> validating the user.
>      >> Maybe you arlready replied this in a previous note but, what
>     version
>      >> of Geronimo are you using?
>      >>
>      >> Cheers!
>      >> Hernan
>      >>
>      >> Phani Madgula wrote:
>      >>
>      >>> Hi Hernan,
>      >>>
>      >>> Thanks for the link. It is quite helpful & informative.
>      >>>
>      >>> I did similar operations, as specified in my previous mail, by
>      >>> deploying the sample application given in the article.  I added
>     a new
>      >>> user user3/pass123 in "ou=users, ou=system" in Directory
>     server, and
>      >>> in geronimo-web.xml I added the user3 in role mappings
>      >>>
>      >>>      <role-mappings>
>      >>>             <role role-name="content-administrator">
>      >>>                             <realm realm-name="ldap-realm">
>      >>>
>      >>> <principal
>      >>>
>     class="org.apache.geronimo.security.realm.providers.GeronimoGroupPrincipal "
>      >>>
>      >>>               name="admin" designated-run-as="true"/>
>      >>> <principal
>      >>>
>     class=" org.apache.geronimo.security.realm.providers.GeronimoUserPrincipal "
>      >>>
>      >>>               name="system"/>
>      >>> <principal
>      >>>
>     class="org.apache.geronimo.security.realm.providers.GeronimoUserPrincipal "
>      >>>
>      >>>               name="user3"/>
>      >>>                               </realm>
>      >>>                      </role>
>      >>>
>      >>>              <role role-name="guest">
>      >>>                 <realm realm-name="ldap-realm">
>      >>> <principal
>      >>>
>     class="org.apache.geronimo.security.realm.providers.GeronimoGroupPrincipal
>      >>> "
>      >>>                   name="guest" designated-run-as="true"/>
>      >>> <principal
>      >>>
>     class="org.apache.geronimo.security.realm.providers.GeronimoUserPrincipal"
>      >>>
>      >>>                  name="user1"/>
>      >>> <principal
>      >>>
>     class="org.apache.geronimo.security.realm.providers.GeronimoUserPrincipal"
>      >>>
>      >>>                   name="user2"/>
>      >>>                 </realm>
>      >>>             </role>
>      >>>
>      >>>         </role-mappings>
>      >>>
>      >>> I used Jxplorer LDAP client to create the new user users3. When I
>      >>> provide password in PLAIN format which uses BASE64 encoding
>     through
>      >>> LDAP client, the application is authenticating successfully. When I
>      >>> store it in MD5, the authentication is failing for user3.
>      >>>
>      >>> Any issue while using MD5 ?
>      >>>
>      >>> thanks
>      >>> phani
>      >>>
>      >>> On 1/21/06, *Hernan Cunico* < [EMAIL PROTECTED]
>     <mailto: [EMAIL PROTECTED]>
>      >>> <mailto: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > wrote:
>      >>>
>      >>>     Hi Phani,
>      >>>     Here is an article that may help you configure LDAP
>      >>>
>      >>>
>      >>>
>     http://opensource2.atlassian.com/confluence/oss/display/GERONIMO/Configuring+LDAP
>      >>>
>      >>>
>      >>>     Cheers!
>      >>>     Hernan
>      >>>
>      >>>     Phani Madgula wrote:
>      >>>      > Hi
>      >>>      >
>      >>>      > I am facing a problem while connecting to LDAP server
>     from an
>      >>>     LDAP client.
>      >>>      > I have installed Softerra LDAP browser and tried to
>     connect to
>      >>> LDAP
>      >>>      > server running on Geronimo.
>      >>>      >
>      >>>      > I always get "Can not connect to the LDAP server : ERROR
>     91".
>      >>>      >
>      >>>      > Any solution?
>      >>>      >
>      >>>      > thanks
>      >>>      > phani
>      >>>
>      >>>
>      >>
>      >
>
>