Pritunl SAML is not working with WSO2 Identity Server. When I click Sign In With SAML it gives me a 500 Internal Server Error on the sso/request page. The Pritunl log does not provide much context about the SAML connection issue.
[snowy-plains-5952][2023-01-18 02:36:21,356][ERROR] Saml auth server error
status_code = 500
content = "b''"
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 912, in _bootstrap
self._bootstrap_inner()
File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
self.run()
File "/usr/lib/pritunl/lib/python3.9/site-packages/cheroot/workers/threadpool.py", line 125, in run
keep_conn_open = conn.communicate()
File "/usr/lib/pritunl/lib/python3.9/site-packages/cheroot/server.py", line 1300, in communicate
req.respond()
File "/usr/lib/pritunl/lib/python3.9/site-packages/cheroot/server.py", line 1090, in respond
self.server.gateway(self).respond()
File "/usr/lib/pritunl/lib/python3.9/site-packages/cheroot/wsgi.py", line 140, in respond
response = self.req.server.wsgi_app(self.env, self.start_response)
File "/usr/lib/pritunl/lib/python3.9/site-packages/flask/app.py", line 2091, in __call__
return self.wsgi_app(environ, start_response)
File "/usr/lib/pritunl/lib/python3.9/site-packages/flask/app.py", line 2073, in wsgi_app
response = self.full_dispatch_request()
File "/usr/lib/pritunl/lib/python3.9/site-packages/flask/app.py", line 1516, in full_dispatch_request
rv = self.dispatch_request()
File "/usr/lib/pritunl/lib/python3.9/site-packages/flask/app.py", line 1502, in dispatch_request
return self.ensure_sync(self.view_functions[rule.endpoint])(**req.view_args)
File "/usr/lib/pritunl/lib/python3.9/site-packages/pritunl-1.30.3388.46-py3.9.egg/pritunl/auth/app.py", line 26, in _wrapped
return call(*args, **kwargs)
File "/usr/lib/pritunl/lib/python3.9/site-packages/pritunl-1.30.3388.46-py3.9.egg/pritunl/handlers/sso.py", line 440, in sso_request_get
logger.error('Saml auth server error', 'sso',
File "/usr/lib/pritunl/lib/python3.9/site-packages/pritunl-1.30.3388.46-py3.9.egg/pritunl/logger/__init__.py", line 55, in error
kwargs['traceback'] = traceback.format_stack()
WSO2 Identity Server log does not output any connection from Pritunl VPN server during the SAML connection. However, it the SAML connection is working between the VPN and Nextcloud service. The Pritunl Web Server is running behind a firewall and not exposed to the public internet. The only way to access the VPN web service, is through the VPN. What could the problem be? And what are some potential solutions?