s3:pylibsmb: Add .deltree() API to SMB py bindings

This basically re-uses the underlying functionality of existing APIs in
order to support a .deltree() API, i.e.
- we use the .list() functionality (i.e. do_listing()) to traverse every
  item in the given directory.
- we then use either .unlink() (i.e. unlink_file()) or .rmdir() (i.e.
  remove_dir()) to delete the individual item.
- sub-directories are handled recursively, by repeating the process.

Note that the .deltree() API is currently only really used for testing
(and deleting GPO files). So the recursion is never going to be
excessive.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13676

Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

python/samba/tests/smb.py

@@ -58,7 +58,7 @@ class SMBTests(samba.tests.TestCase):
     def tearDown(self):
         super(SMBTests, self).tearDown()
         try:
-            self.conn.deltree(test_dir)
+            self.smb_conn.deltree(test_dir)
         except:
             pass
 
@@ -96,6 +96,7 @@ class SMBTests(samba.tests.TestCase):
         dirpaths = []
         empty_dirs = []
         cur_dir = test_dir
+
         for subdir in ["subdir-X", "subdir-Y", "subdir-Z"]:
             path = self.make_sysvol_path(cur_dir, subdir)
             self.smb_conn.mkdir(path)
@@ -126,18 +127,18 @@ class SMBTests(samba.tests.TestCase):
 
         # try using deltree to remove a single empty directory
         path = empty_dirs.pop(0)
-        self.conn.deltree(path)
+        self.smb_conn.deltree(path)
         self.assertFalse(self.smb_conn.chkpath(path),
                          "Failed to delete {0}".format(path))
 
         # try using deltree to remove a single file
         path = filepaths.pop(0)
-        self.conn.deltree(path)
+        self.smb_conn.deltree(path)
         self.assertFalse(self.file_exists(path),
                          "Failed to delete {0}".format(path))
 
         # delete the top-level dir
-        self.conn.deltree(test_dir)
+        self.smb_conn.deltree(test_dir)
 
         # now check that all the dirs/files are no longer there
         for subdir in dirpaths + empty_dirs: