Authentication Failure with NTLM Subversion Authentication

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症状

Bamboo's Subversion Java client SVNKit does not work well with NTLM based Authentication.

This can be seen in the log files:

INFO [pool-17-thread-1] [DefaultErrorHandler] Recording error: Unable to detect changes : SLAPI-SLAPI2000
com.atlassian.bamboo.repository.RepositoryException: Build 'SLAPI-SLAPI2000' failed to check SVN repository
at com.atlassian.bamboo.repository.svn.SvnRepository.collectChangesSinceLastBuild(SvnRepository.java:219)
...
Caused by: org.tmatesoft.svn.core.SVNAuthenticationException: svn: Authentication required for '<[http://subversion:80]> (null)'
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.authenticationFailed(SVNErrorManager.java:47)
at org.tmatesoft.svn.core.internal.wc.SVNErrorManager.authenticationFailed(SVNErrorManager.java:41)
at org.tmatesoft.svn.core.internal.wc.DefaultSVNAuthenticationManager.getNextAuthentication(DefaultSVNAuthenticationManager.java:202)

If the repository server only offers NTLM authentication, then SVNKit cannot connect reliably.

原因

The SVNKit Java client does not handle NTLM authentication. It relies on Basic Authentication.

ソリューション

  • Configure repository server to offer both Basic and NTLM authentication (Apache httpd only).
    Use Apache mod_auth_sspi module on the server side, and add the following option to the Subversion repository location:

    SSPIOfferBasic On
    
  • Force Bamboo to prefer Basic Authentication
    Force Bamboo/SVNKit to prefer basic authentication by adding -Dsvnkit.http.methods=Basic,Digest,Negotiate,NTLM to the Java options when starting bamboo.

 

最終更新日 2013 年 6 月 27 日

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