So maybe the header added to HTTP GETs of resources would be: resource-is-not-modifiable-by-you: true
*In the absence of this new feature of Subversion* I'm going to have to encode something verbose in the repo itself as hidden files: <repo-URL>/.sync/server-settings/users/<username>/readonly-masks.txt And I would generate those masks from dav_svn.authz for that user (on the server side). The file would be Globbing/regex-ish, of course. Regards, - Paul