How do I go about writing into the global webdav contents area from a cell? I want to write into the .../run/contents/XX area from a cell. Is this possible? Is this a permissions issue?
It is a permissions issue. Only users in the "admin" group can write to arbitrary locations in webdav. Everyone else can only write to their own user directory. The important bit here is that the permissions are per-client, not per-cell. So if an admin user loads the cell, they may be able to write to webdav, but if a regular user loads the same cell, they won't have permissions.
Ironically, this doesn't apply when accessing files from applications. I understand why this is the case, but it breaks the security model.
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