The root folder is unsupported

[pwierzgala]

I run the following code:

from django.core.management import call_command

def create_db_backup():
    call_command('dbbackup', compress=True, clean=True)

the backup creates and is uploaded to my dropbox account but at the end I get the following error:

[2018-08-25 17:18:13,416: INFO/ForkPoolWorker-2] Writing file to default-2018-08-25-17-17-50.psql.gz
[2018-08-25 17:18:13,417: INFO/ForkPoolWorker-2] Request to files/get_metadata
[2018-08-25 17:18:13,951: INFO/ForkPoolWorker-2] Request to files/upload_session/start
[2018-08-25 17:18:32,623: INFO/ForkPoolWorker-2] Request to files/upload_session/append_v2
[2018-08-25 17:18:50,764: INFO/ForkPoolWorker-2] Request to files/upload_session/append_v2
[2018-08-25 17:21:52,031: INFO/ForkPoolWorker-2] Request to files/upload_session/finish
[2018-08-25 17:21:54,395: INFO/ForkPoolWorker-2] Request to files/get_metadata
BadInputError: BadInputError('d8e906319f920d75ffc769f3fe86fba4', 'Error in call to API function "files/get_metadata": request body: path: The root folder is unsupported.')

If I set any directory in root_path of DBBACKUP_STORAGE_OPTIONS, e.g.:

DBBACKUP_STORAGE_OPTIONS = {
    'oauth2_access_token': 'token',
    'root_path': '/dir/'
}

then the error changes to: TypeError: 'FolderMetadata' object is not subscriptable. The same as in the issue: #396

Do you have any idea what may be wrong? Below I enclose information about my configuration.

Requirements:

dropbox==9.0.0
django-dbbackup==3.2.0
django-storages==1.6.6

Settings:

DBBACKUP_STORAGE = 'storages.backends.dropbox.DropBoxStorage'
DBBACKUP_STORAGE_OPTIONS = {
    'oauth2_access_token': 'token'
}

[matburnham]

I get a similar issue, when trying to use django-dbbackup's dbrestore or listbackups commands.

Digging a little, it's probably something to do with Apps sandboxing, but difficult to figure out.

$ ./manage.py shell
Python 3.6.7 (default, Oct 22 2018, 11:32:17)
[GCC 8.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from storages.backends.dropbox import DropBoxStorage
>>> DROPBOX_OAUTH2_TOKEN = '[my token]'
>>> d = DropBoxStorage(DROPBOX_OAUTH2_TOKEN)

>>> d.listdir()
Traceback (most recent call last):
  File "<console>", line 1, in <module>
TypeError: listdir() missing 1 required positional argument: 'path'

>>> d.listdir('')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/storages/backends/dropbox.py", line 81, in listdir
    metadata = self.client.files_get_metadata(full_path)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/base.py", line 1243, in files_get_metadata
    None,
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 274, in request
    timeout=timeout)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 365, in request_json_string_with_retry
    timeout=timeout)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 456, in request_json_string
    raise BadInputError(request_id, r.text)
dropbox.exceptions.BadInputError: BadInputError('...', 'Error in call to API function "files/get_metadata": request body: path: The root folder is unsupported.')

>>> d.listdir('/')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/storages/backends/dropbox.py", line 81, in listdir
    metadata = self.client.files_get_metadata(full_path)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/base.py", line 1243, in files_get_metadata
    None,
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 274, in request
    timeout=timeout)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 365, in request_json_string_with_retry
    timeout=timeout)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 456, in request_json_string
    raise BadInputError(request_id, r.text)
dropbox.exceptions.BadInputError: BadInputError('...', 'Error in call to API function "files/get_metadata": request body: path: The root folder is unsupported.')

>>> d.listdir('/Apps')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/storages/backends/dropbox.py", line 81, in listdir
    metadata = self.client.files_get_metadata(full_path)
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/base.py", line 1243, in files_get_metadata
    None,
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/dropbox/dropbox.py", line 296, in request
    user_message_locale)
dropbox.exceptions.ApiError: ApiError('...', GetMetadataError('path', LookupError('not_found', None)))

>>> d.listdir('/Test')
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/home/mat/.virtualenvs/flyuk/lib/python3.6/site-packages/storages/backends/dropbox.py", line 82, in listdir
    for entry in metadata['contents']:
TypeError: 'FolderMetadata' object is not subscriptable

Any ideas?

[matburnham]

Okay, looks like #402 fixes this, amongst other things.

[jschneier]

Fixed by #724.