topic Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document in Alfresco Forum

Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

taran2la — Mon, 14 May 2018 16:38:54 GMT

Hello everyoneI have an application which uses PortCMIS (.NET) library to interact with Alfresco repositories.It works as expected with 5.0-5.2 versions, but I get an error with locally installed Alfresco 6.0.2.1 (Alfresco Community Edition 201802 EA).If I try to create a session and get the reposit

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

angelborroy — Tue, 15 May 2018 12:34:57 GMT

This is default behaviour for REST API authentication. Why do you want the browser to show an authentication popup?

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

taran2la — Tue, 15 May 2018 13:46:42 GMT

Thank You for reply!

The authentication popup appears in browser if I use Alfresco 5.x. I haven't found any changes about authentication in release notes. According to that, the default behaviour is with an authentication popup and it should also be displayed in 6.0 version.

How should I use in Alfresco 6.0 the "CMIS 1.1 AtomPub Service Document" link, which is displayed on http://127.0.0.1:8080/alfresco, if I cannot use my credentials (like in previous versions) and I get an exception?

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

angelborroy — Tue, 15 May 2018 13:54:21 GMT

CMIS API is not designed to be used from Web Browser.

You can still use it from Postman or developing a client program in some compatible technology (Java, PHP, Python....)

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

angelborroy — Tue, 15 May 2018 14:00:53 GMT

It looks like it's a new "feature": https://github.com/Alfresco/alfresco-remote-api/commit/dfb270a6e171b0808f92701128e41261c53faf3f

You can restore the behaviour by setting

alfresco.restApi.basicAuthScheme=true

in alfresco-global.properties

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

angelborroy — Tue, 15 May 2018 14:25:19 GMT

Just to complete the answer with information provided by Younes REGAIEG‌ in the IRC: when restoring popup behaviour ADF apps will present also the popup in login page (before login in). In fact this patch was developed to avoid this problem.

So if you are using both (CMIS Browsing and ADF apps), you need to raise a new issue to be solved.

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

taran2la — Wed, 16 May 2018 11:31:37 GMT

Yes, seems to be this is the problem. Thanks again.

I cannot modify alfresco-global.properties file because I expect users to interact with default version from Alfresco Community Edition 201802 EA file list.

Now the main question is: how can I get repositories from Alfresco 6.0 or at least authorize the user using PortCMIS in my app?

I'm using default approach and it works great with Alfresco 4.x/5.x:

var repos = PortCMIS.Client.Impl.SessionFactory.NewInstance().GetRepositories(sessionParameters);

And the dictionary sessionParameters is filled with following values:

Seems like the credentials are not used now and it causes "Unauthorized" exception.

Any ideas how to handle this?

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

angelborroy — Wed, 16 May 2018 12:33:38 GMT

I guess this is a problem related with PortCMIS, as Java CMIS Client is working fine.

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

robl — Tue, 07 Aug 2018 09:46:35 GMT

I know I am a little late to respond, but I ran across this thread when trying to find a solution to the same issue (except I am using the browser binding) with Alfresco 6 and PortCMIS.

I've been able work around this without any changes to Alfresco configuration by adding a {SessionParameter.PreemptivAuthentication, "true"} as part of the dictionary of parameters that I pass when creating the session.

Regards,

Robert

Re: Alfresco 6.0 and CMIS 1.1 AtomPub Service Document

jpotts — Wed, 20 May 2020 17:36:52 GMT

Old thread, but in case you are using cmislib, the Python CMIS library, you will have to set alfresco.restApi.basicAuthScheme=true in alfresco-global.properties or cmislib will not work.