tree d42b69e266761ba6caed601f5d710df9d9739bb5
parent 48e17629b0b6c89cb77342c0364a1cf3a0b2a0fb
author Jeff Sharkey <jsharkey@android.com> 1417037906 -0800
committer Jeff Sharkey <jsharkey@android.com> 1417455529 -0800

Sanitize display names, keep extensions intact.

When creating or renaming files on external storage, sanitize the
requested display names to be valid FAT filenames.  This also fixes
a handful of directory traversal bugs.

Also relax logic around generating display names to allow any
extension which maps to the requested MIME type.  Tests to verify.

Bug: 18512473, 18504132
Change-Id: I89e632019ee145f53d9d9d2050932f8939a756af