OpenID plugin fails with: number of bits must be greater than zero

[sander.sweers@…]

I got this while testing the plugin for a project. Any help would be appreciated.

Thanks Sander

Python Traceback

Traceback (most recent call last):

File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 379, in dispatch_request

dispatcher.dispatch(req)

File "/usr/lib/python2.4/site-packages/trac/web/main.py", line 230, in dispatch

resp = chosen_handler.process_request(req)

File "build/bdist.linux-x86_64/egg/openidauth/auth.py", line 162, in process_request File "build/bdist.linux-x86_64/egg/openidauth/auth.py", line 205, in _start_login File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 308, in begin

return self.beginWithoutDiscovery(service)

File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 331, in beginWithoutDiscovery

auth_req = self.consumer.begin(service)

File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 423, in begin

assoc = self._getAssociation(service_endpoint.server_url)

File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 619, in _getAssociation

assoc_session, args = self._createAssociateRequest(server_url)

File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 639, in _createAssociateRequest

assoc_session = session_type()

File "/usr/lib/python2.4/site-packages/openid/consumer/consumer.py", line 378, in init

dh = DiffieHellman.fromDefaults()

File "/usr/lib/python2.4/site-packages/openid/dh.py", line 17, in fromDefaults

return cls(cls.DEFAULT_MOD, cls.DEFAULT_GEN)

File "/usr/lib/python2.4/site-packages/openid/dh.py", line 25, in init

self._setPrivate(cryptutil.randrange(1, modulus - 1))

File "/usr/lib/python2.4/random.py", line 189, in randrange

return int(istart + self._randbelow(width))

File "/usr/lib/python2.4/random.py", line 236, in _randbelow

r = getrandbits(k)

File "/usr/lib/python2.4/random.py", line 764, in getrandbits

raise ValueError('number of bits must be greater than zero')

ValueError: number of bits must be greater than zero

[wkornewald]

Assigning to new owner.

[sander.sweers@…]

Testing it a bit more and found this does not happen when trac is run under mod_python. The trace above is only when it is run as a cgi.

[Dalius]

If you want you can test this problem with AuthOpenIdPlugin which uses newer version of OpenID library which is potential source of problem.

[Ryan J Ollos]

Plugin is deprecated. See AuthOpenIdPlugin for an alternative.