How to connect to sharepoint on prem 2013 using CMIS

Question

I want to get the SharePoint document library data using CMIS

Here is my code:

Dictionary<string, string> parameters = new Dictionary<string, string>();
                parameters[SessionParameter.BindingType] = BindingType.AtomPub;
                parameters[SessionParameter.AtomPubUrl] = "http://zeus:18439/_vti_bin/cmis/rest/CD4E6A20-32DD-46F5-96A8-00EF7B754EC2?getRepositoryInfo";
                parameters[SessionParameter.User] = strSourceUserName;
                parameters[SessionParameter.Password] = strSourcePassword;
                SessionFactory factory = SessionFactory.NewInstance();
                migrateRepos = factory.GetRepositories(parameters);

I am getting an Unauthorized exception at GetRepositories() method. The stack trace is

at DotCMIS.Binding.AtomPub.AbstractAtomPubService.Read(UrlBuilder url)
   at DotCMIS.Binding.AtomPub.AbstractAtomPubService.GetRepositoriesInternal(String repositoryId)
   at DotCMIS.Binding.AtomPub.RepositoryService.GetRepositoryInfos(IExtensionsData extension)
   at DotCMIS.Binding.Impl.BindingRepositoryService.GetRepositoryInfos(IExtensionsData extension)
   at DotCMIS.Client.Impl.SessionFactory.GetRepositories(IDictionary`2 parameters, IObjectFactory objectFactory, AbstractAuthenticationProvider authenticationProvider, ICache cache)
   at DotCMIS.Client.Impl.SessionFactory.GetRepositories(IDictionary`2 parameters)
   at ReadFileInfo.AlfrescoAnalysis.MigrateCMISData() in D:\TFS\Optimum - MigrationTools\Alfresco_Analysis\ReadFileInfo\AlfrescoAnalysis.cs:line 289

Glad for any help..Thanks

Answer 1

You should be aware of using CMIS requires enabling Basic Authentication for your web application to avoid Unauthorized exception.

For more details, check CMIS Prerequisites In SharePoint 2016

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Solution

You should Enable Basic Authentication to your Web Application at Claims Authentication Types by doing the following:

• Open Central Administration > Application Management > Manage web application.

• Click on your web application, from the above ribbon, select Authentication Provider.

• Check Basic authentication (credentials are sent in clear text)

For more details, check Configure CMIS In SharePoint 2016