software/dufs: fix misconfiguration preventing uploading in /pub

This have been a regression when upgrading to v0.40.0

software/dufs/buildout.hash.cfg

@@ -15,4 +15,4 @@
 
 [instance.cfg.in]
 filename = instance.cfg.in
-md5sum = c1c5db680dee5cfe5334cedae4b7fc51
+md5sum = 765bb15f322f5566a66d15baa8c68f9a

software/dufs/instance.cfg.in

@@ -159,7 +159,7 @@ command-line =
     --render-try-index
     --allow-all
     --auth-method basic
-    --auth ${admin-password:user}:${admin-password:passwd-sha512-crypt}@/:rw
+    --auth ${admin-password:user}:${admin-password:passwd-sha512-crypt}@/:rw,/pub:rw
     --auth @/pub
     --tls-cert ${dufs-certificate:cert-file}
     --tls-key ${dufs-certificate:key-file}

software/dufs/test/test.py

@@ -139,15 +139,17 @@ class TestFileServer(SlapOSInstanceTestCase):
     self.assertEqual(resp.status_code, requests.codes.unauthorized)
 
   def test_upload_file(self):
+    for path in 'hello.txt', 'pub/hello.txt', 'create/intermediate/paths':
+      with self.subTest(path):
         resp = requests.put(
-      urllib.parse.urljoin(self.connection_parameters['upload-url'], 'hello.txt'),
+          urllib.parse.urljoin(self.connection_parameters['upload-url'], path),
           data=io.BytesIO(b'hello'),
           verify=self.ca_cert,
         )
         self.assertEqual(resp.status_code, requests.codes.created)
 
         resp = requests.get(
-      urllib.parse.urljoin(self.connection_parameters['upload-url'], 'hello.txt'),
+          urllib.parse.urljoin(self.connection_parameters['upload-url'], path),
           verify=self.ca_cert,
         )
         self.assertEqual(resp.text, 'hello')