Failed to authenticate after upgrade to DSM 7

[mjozefcz]

After synology upgrade to DSM 7, the _initialize_api_sid fails on

Traceback (most recent call last):
  File "synology-snapshot.py", line 34, in <module>
    surveillance = SurveillanceStation(api_url, username, password, verify_ssl=verify_ssl, timeout=timeout)
  File "/root/synology-snapshot-docker/.venv/lib/python3.8/site-packages/synology/surveillance_station.py", line 13, in __init__
    self._api = Api(url, username, password, timeout, verify_ssl)
  File "/root/synology-snapshot-docker/.venv/lib/python3.8/site-packages/synology/api.py", line 74, in __init__
    self._initialize_api_sid()
  File "/root/synology-snapshot-docker/.venv/lib/python3.8/site-packages/synology/api.py", line 102, in _initialize_api_sid
    response = self._get_json_with_retry(api['url'], payload)
  File "/root/synology-snapshot-docker/.venv/lib/python3.8/site-packages/synology/api.py", line 303, in _get_json_with_retry
    return self._get_json(url, payload)
  File "/root/synology-snapshot-docker/.venv/lib/python3.8/site-packages/synology/api.py", line 318, in _get_json
    raise ValueError('Invalid or failed response', content)
ValueError: ('Invalid or failed response', {'error': {'code': 103}, 'success': False})

Based on WebAPi documentation it seems like the requested API method doesn't exist.

_api_info structure:

{'_api_info': {'auth': {'name': 'SYNO.API.Auth', 'url': 'https://IP:5001/webapi/entry.cgi', 'version': 2},
               'camera': {'name': 'SYNO.SurveillanceStation.Camera', 'url': 'https://IP:5001/webapi/entry.cgi', 'version': 1},
               'camera_event': {'name': 'SYNO.SurveillanceStation.Camera.Event', 'url': 'https://IP:5001/webapi/entry.cgi', 'version': 1},
               'home_mode': {'name': 'SYNO.SurveillanceStation.HomeMode', 'url': 'https://IP:5001/webapi/entry.cgi', 'version': 1},
               'snapshot': {'name': 'SYNO.SurveillanceStation.SnapShot', 'url': 'https://IP:5001/webapi/entry.cgi', 'version': 1},
               'video_stream': {'name': 'SYNO.SurveillanceStation.VideoStream', 'url': 'https://IP:5001/webapi/SurveillanceStation/videoStreaming.cgi', 'version': 1}},
 '_base_url': 'https://IP:5001/webapi/',
 '_password': 'foo',
 '_sid': None,
 '_timeout': 30,
 '_username': 'bar',
 '_verify_ssl': False}
(Pdb++)

Surveillance station version: 8.2.9-7301
https://www.synology.com/en-uk/releaseNote/SurveillanceStation

[mjozefcz]

I've bumped the SYNO.API.Auth to 7 and changed the login method from "Login" to "login" and it started working.
Looks like we need some api discovery to setup proper parameters.