Not Able to get Alfresco 4.2 repository session in Java CMIS

Question

I want to get session for Alfresco 4.2.1 Repository. But i am not getting below Exception

Exception in thread "main" org.apache.chemistry.opencmis.commons.exceptions.CmisConnectionException: Cannot access "https://test.uk.corplan.net/alfresco/api/-default-/public/cmis/versions/1.1/atom": handshake alert:  unrecognized_name
at org.apache.chemistry.opencmis.client.bindings.spi.http.DefaultHttpInvoker.invoke(DefaultHttpInvoker.java:228)
at org.apache.chemistry.opencmis.client.bindings.spi.http.DefaultHttpInvoker.invokeGET(DefaultHttpInvoker.java:55)
at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.read(AbstractAtomPubService.java:615)
at org.apache.chemistry.opencmis.client.bindings.spi.atompub.AbstractAtomPubService.getRepositoriesInternal(AbstractAtomPubService.java:782)
at org.apache.chemistry.opencmis.client.bindings.spi.atompub.RepositoryServiceImpl.getRepositoryInfos(RepositoryServiceImpl.java:65)
at org.apache.chemistry.opencmis.client.bindings.impl.RepositoryServiceImpl.getRepositoryInfos(RepositoryServiceImpl.java:88)
at org.apache.chemistry.opencmis.client.runtime.SessionFactoryImpl.getRepositories(SessionFactoryImpl.java:133)
at org.apache.chemistry.opencmis.client.runtime.SessionFactoryImpl.getRepositories(SessionFactoryImpl.java:111)
at com.rave.utils.GetAlfrescoSession.getalfrescosession(GetAlfrescoSession.java:42)
at com.rave.utils.GetAlfrescoSession.main(GetAlfrescoSession.java:18)Caused by: javax.net.ssl.SSLProtocolException: handshake alert:  unrecognized_name
at sun.security.ssl.ClientHandshaker.handshakeAlert(Unknown Source)
at sun.security.ssl.SSLSocketImpl.recvAlert(Unknown Source)
at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
at sun.net.www.protocol.https.HttpsClient.afterConnect(Unknown Source)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(Unknown Source)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(Unknown Source)
at org.apache.chemistry.opencmis.client.bindings.spi.http.DefaultHttpInvoker.invoke(DefaultHttpInvoker.java:203)

I have written below code to get the session. but i am not getting whats wrong here.

import java.util.HashMap;
import java.util.Map;
import org.apache.chemistry.opencmis.client.api.Session;
import org.apache.chemistry.opencmis.client.api.SessionFactory;
import org.apache.chemistry.opencmis.client.runtime.SessionFactoryImpl;
import org.apache.chemistry.opencmis.commons.SessionParameter;
import org.apache.chemistry.opencmis.commons.enums.BindingType;

public class GetAlfrescoSession {
    public static void main(String[] args) {
        getalfrescosession();
    }

    public static Session getalfrescosession() {
        Map<String, String> parameter = new HashMap<String, String>();
        parameter.put(SessionParameter.USER, "admin");
        parameter.put(SessionParameter.PASSWORD, "admin");
        parameter.put(SessionParameter.ATOMPUB_URL,
                "https://test.uk.corplan.net/alfresco/api/-default-/public/cmis/versions/1.1/atom");
        parameter.put(SessionParameter.BINDING_TYPE, BindingType.ATOMPUB.value());
        parameter.put(SessionParameter.OBJECT_FACTORY_CLASS, "org.alfresco.cmis.client.impl.AlfrescoObjectFactoryImpl");
        SessionFactory factory = SessionFactoryImpl.newInstance();
        Session session = factory.getRepositories(parameter).get(0).createSession();
        return session;
    }
}

Can anyone please help me?

Thanks in Advance...

Did you see my post [How to connect to Alfresco repository](http://stackoverflow.com/questions/38407839/how-to-make-a-link-between-a-jsp-page-and-an-alfresco-activiti/38455289#38455289) i am almost sure you have an error in your `ATOMPUB_URL` — Yagami Light, Apr 17 '17 at 06:16
Please use this `"http://127.0.0.1:8080/alfresco/api/-default-/public/cmis/versions/1.0/atom"` for your `ATOMPUB_URL` and tell me if it does work — Yagami Light, Apr 17 '17 at 06:18
@YagamiLight This happends only in the case of production server. With same URL i am able to connect to LOCAL and DEV server. But i am getting issue while connecting to PRODUCTION. — Deepak Talape, Apr 17 '17 at 09:13
Yes, with same version means alfresco 4.2.1 i am able to connect to repository on local, but on production i am getting some SSL related Error.. — Deepak Talape, Apr 17 '17 at 09:21

score 4 · Answer 1 · answered Apr 15 '17 at 16:13

4

I believe that the URL that you use is compatible only with Alfresco 5.x. If you use Alfresco 4.2.x, you need to use an other URL. Just open the page:

http://<your alfresco>/alfresco/s/cmis/index

And you should get all details related to your instance. The URL of the CMIS repo should be:

http://<your alfresco>/alfresco/cmisatom

answered Apr 15 '17 at 16:13

Ben Chevallereau

429
4
8

i changed the URL, but still i am getting same issue. can you tell me here any cause of https protocol. because this is production repository. and having HTTPS. – Deepak Talape Apr 16 '17 at 07:19
Or is there any possibility that CMIS is Disabled so i cant access repository? if yes, can i Enable it?? – Deepak Talape Apr 16 '17 at 07:20
Hi. No CMIS is always available. I'll check 4.2 and I'll come back to you. – Ben Chevallereau Apr 17 '17 at 08:55

score 4 · Answer 2 · answered Apr 16 '17 at 08:10

4

This has nothing to do with Alfresco or OpenCMIS. SSL is no set up correctly on the server.

See this answer: SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0

answered Apr 16 '17 at 08:10

Florian Müller

3,215
1
14
11

Muller i aulredy gone through the link you provided. But i am not getting what exactly i have to do. Can you please tell me some simple steps to follow regarding SSL setup. That will be really help full. Thanks in Advance.... – Deepak Talape Apr 16 '17 at 08:15
1

Try adding this before you create the session: `System.setProperty("jsse.enableSNIExtension", "false");` – Florian Müller Apr 16 '17 at 08:39
Not its giving additional error as follows.... javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target – Deepak Talape Apr 16 '17 at 09:41
The server is probably providing a self-signed certificate. The server admin has to fix the SSL configuration. – Florian Müller Apr 16 '17 at 09:54
Where exactly it has to fix SSL configuration? Can you please elaborate? – Deepak Talape Apr 16 '17 at 10:44

score 1 · Answer 3 · answered Apr 17 '17 at 10:05

1

I just installed the latest Alfresco 4.2.x and I checked the URL:

http://127.0.0.1:8080/alfresco/s/cmis/index

Then, I clicked on the link highlighted in the screenshot called AtomPub Service Document and the URL of the CMIS service is:

http://127.0.0.1:8080/alfresco/cmisatom

Be aware that Alfresco 4.2 supports only CMIS 1.0 and not CMIS 1.1.

answered Apr 17 '17 at 10:05

Ben Chevallereau

429
4
8

Even i am also able to access or connect to Alfresco repository on my local machine. but this issue is there with PRODUCTION. I am not able ti connect to production only. and the exception i am getting is related to SSL – Deepak Talape Apr 17 '17 at 10:10

score 0 · Answer 4 · answered Jan 05 '18 at 13:45

I've run into this issue before on version 5.1 and what fixed it for me was the following setup:

            SessionFactory factory = SessionFactoryImpl.newInstance();
            Map<String, String> parameters = new HashMap<String, String>();

            // user credentials
            parameters.put(SessionParameter.USER, "username");
            parameters.put(SessionParameter.PASSWORD, "password");

            // connection settings
            parameters.put(SessionParameter.ATOMPUB_URL, "https://someurl.com/alfresco/cmisatom");
            parameters.put(SessionParameter.BINDING_TYPE, BindingType.ATOMPUB.value());
            parameters.put(SessionParameter.REPOSITORY_ID, "IMPORTANT! the repository id must be defined here");

            // create session
            Session session = factory.createSession(parameters);

If you're using version 4.2 you need to verify that you connection endpoints and the version of CMIS you're using are are compatible.

Not Able to get Alfresco 4.2 repository session in Java CMIS

4 Answers4