Not working Backup to sinology webdav server on OctoPrint 1.5.2 Python 3.7.3 OctoPi 0.17.0

[courtpl]

When i try to use synology webdav backup:

Backup configuration
Server address: http://nasxx:5005/
username: yyyyyy
pasword : xxx
path: /OctopiBckp/%Y

I can acces to the sysnology repository with the command dav://nasxx:5005/OctopiBckp

Error message:

2021-01-19 18:08:00,470 - octoprint.plugin - ERROR - Error while calling plugin webdavbackup
Traceback (most recent call last):
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint/plugin/init.py", line 271, in call_plugin
result = getattr(plugin, method)(*args, **kwargs)
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint/util/init.py", line 1890, in wrapper
return f(*args, **kwargs)
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint_webdavbackup/init.py", line 71, in on_event
_recursive_create_path(upload_path)
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint_webdavbackup/init.py", line 68, in _recursive_create_path
_recursive_create_path(os.path.abspath(os.path.join(path, "..")))
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint_webdavbackup/init.py", line 68, in _recursive_create_path
_recursive_create_path(os.path.abspath(os.path.join(path, "..")))
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint_webdavbackup/init.py", line 68, in _recursive_create_path
_recursive_create_path(os.path.abspath(os.path.join(path, "..")))
[Previous line repeated 960 more times]
File "/home/pi/oprint/lib/python3.7/site-packages/octoprint_webdavbackup/init.py", line 64, in _recursive_create_path
if davclient.check(path):
File "/home/pi/oprint/lib/python3.7/site-packages/webdav3/client.py", line 66, in _wrapper
res = fn(self, *args, **kw)
File "/home/pi/oprint/lib/python3.7/site-packages/webdav3/client.py", line 292, in check
response = self.execute_request(action='check', path=urn.quote())
File "/home/pi/oprint/lib/python3.7/site-packages/webdav3/client.py", line 217, in execute_request
verify=self.verify
File "/home/pi/oprint/lib/python3.7/site-packages/requests/sessions.py", line 530, in request
resp = self.send(prep, **send_kwargs)
File "/home/pi/oprint/lib/python3.7/site-packages/requests/sessions.py", line 643, in send
r = adapter.send(request, **kwargs)
File "/home/pi/oprint/lib/python3.7/site-packages/requests/adapters.py", line 449, in send
timeout=timeout
File "/home/pi/oprint/lib/python3.7/site-packages/urllib3/connectionpool.py", line 677, in urlopen
chunked=chunked,
File "/home/pi/oprint/lib/python3.7/site-packages/urllib3/connectionpool.py", line 426, in _make_request
six.raise_from(e, None)
File "", line 3, in raise_from
File "/home/pi/oprint/lib/python3.7/site-packages/urllib3/connectionpool.py", line 421, in _make_request
httplib_response = conn.getresponse()
File "/home/pi/oprint/lib/python3.7/site-packages/sentry_sdk/integrations/stdlib.py", line 102, in getresponse
rv = real_getresponse(self, *args, **kwargs)
File "/usr/lib/python3.7/http/client.py", line 1336, in getresponse
response.begin()
File "/usr/lib/python3.7/http/client.py", line 330, in begin
self.headers = self.msg = parse_headers(self.fp)
File "/usr/lib/python3.7/http/client.py", line 224, in parse_headers
return email.parser.Parser(_class=_class).parsestr(hstring)
File "/usr/lib/python3.7/email/parser.py", line 68, in parsestr
return self.parse(StringIO(text), headersonly=headersonly)
File "/usr/lib/python3.7/email/parser.py", line 57, in parse
feedparser.feed(data)
File "/usr/lib/python3.7/email/feedparser.py", line 176, in feed
self._call_parse()
File "/usr/lib/python3.7/email/feedparser.py", line 180, in _call_parse
self._parse()
File "/usr/lib/python3.7/email/feedparser.py", line 295, in _parsegen
if self._cur.get_content_maintype() == 'message':
File "/usr/lib/python3.7/email/message.py", line 594, in get_content_maintype
ctype = self.get_content_type()
File "/usr/lib/python3.7/email/message.py", line 578, in get_content_type
value = self.get('content-type', missing)
File "/usr/lib/python3.7/email/message.py", line 471, in get
return self.policy.header_fetch_parse(k, v)
File "/usr/lib/python3.7/email/_policybase.py", line 316, in header_fetch_parse
return self._sanitize_header(name, value)
File "/usr/lib/python3.7/email/_policybase.py", line 287, in _sanitize_header
if _has_surrogates(value):
File "/usr/lib/python3.7/email/utils.py", line 57, in _has_surrogates
s.encode()
RecursionError: maximum recursion depth exceeded while calling a Python object

[edekeijzer]

Duplicate of #3

[courtpl]

I'm not sure is the same problem of issue #3
The pliug-in is loaded correctly, but the error message appear on the file transfert

[edekeijzer]

You are right, I assumed it was the same issue since the titles were nearly the same. Reopening this one.

[edekeijzer]

Currently looking into this. The piece of code that does the recursive checking of the path appears to have a few bugs, but it could also be an authentication issue that makes that checking the path always fails, which the code incorrectly interprets as a non-existing folder. Expect to release a fix later this week.

[edekeijzer]

@courtpl I've fixed some bugs that made the plugin try to get to the parent of / for about 1000 times before giving up when either the URL or the credentials for WebDAV were wrong. It should now at least give a more sensible error message when it's failing to connect or upload.
Unfortunately I do not have a Synology to test against, but I could ask a friend of mine who has one so I can improve my documentation for the right settings.