Brian Bouterse created QPID-6674:
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Summary: EXTERNAL sasl mech without username gives "no mechanism
available" error message
Key: QPID-6674
URL: https://issues.apache.org/jira/browse/QPID-6674
Project: Qpid
Issue Type: Bug
Components: Python Client
Affects Versions: 0.26
Environment: cyrus-sasl-scram-2.1.26-14.fc20.x86_64
cyrus-sasl-plain-2.1.26-14.fc20.x86_64
cyrus-sasl-gssapi-2.1.26-14.fc20.x86_64
cyrus-sasl-2.1.26-14.fc20.x86_64
python-saslwrapper-0.16-5.fc20.x86_64
erlang-sasl-R16B-03.10.fc20.x86_64
cyrus-sasl-lib-2.1.26-14.fc20.x86_64
cyrus-sasl-md5-2.1.26-14.fc20.x86_64
cyrus-sasl-devel-2.1.26-14.fc20.x86_64
saslwrapper-0.16-5.fc20.x86_64
qpid-cpp-server-0.26-13.fc20.x86_64
python-qpid-proton-0.7-3.fc20.x86_64
qpid-tools-0.26-13.fc20.noarch
qpid-cpp-client-0.26-13.fc20.x86_64
qpid-cpp-server-store-0.26-13.fc20.x86_64
qpid-proton-c-0.7-3.fc20.x86_64
python-qpid-qmf-0.26-2.fc20.x86_64
python-qpid-0.26-2.fc20.noarch
qpid-qmf-0.26-2.fc20.x86_64
python-qpid-common-0.26-2.fc20.noarch
Reporter: Brian Bouterse
I tried to use qpid.messaging with EXTERNAL. I was not specifying a username
and I received an error message that makes no sense: "no mechanism available"
I have the following line in sasl2/qpidd.conf:
mech_list: ANONYMOUS DIGEST-MD5 EXTERNAL PLAIN
The contents of qpidd.conf are:
auth=yes
require-encryption=yes
ssl-require-client-authentication=yes
ssl-cert-db=/etc/pki/pulp/qpid/nss
ssl-cert-password-file=/etc/pki/pulp/qpid/nss/password
ssl-cert-name=broker
ssl-port=5671
If I use ANONYMOUS or PLAIN it works for me, but when I use EXTERNAL I get the
strange message. Here is my reproducer script:
from qpid.messaging.endpoints import Connection
opts = {'ssl_certfile': '/etc/pki/pulp/qpid/client.crt', 'ssl_trustfile':
'/etc/pki/pulp/qpid/ca.crt', 'ssl_skip_hostname_check': False,
'sasl_mechanisms': 'EXTERNAL', 'host': 'dhcp129-138.rdu.redhat.com', 'timeout':
4, 'ssl_keyfile': '/etc/pki/pulp/qpid/client.crt', 'port': 5671, 'transport':
'ssl'}
print 'no username'
try:
Connection.establish(**opts)
except Exception as err:
print err
print 'wrong username'
opts['username'] = 'wrongusername'
try:
Connection.establish(**opts)
except Exception as err:
print err
print 'right username'
opts['username'] = 'client'
try:
Connection.establish(**opts)
except Exception as err:
print err
else:
print 'no error'
When I run that I get this output:
no username
Error in sasl_client_start (-4) SASL(-4): no mechanism available:
wrong username
connection-forced: Authentication failed(320)
right username
no error
I expected that if a username is required that I would be told that from the
error message. If not all cases require a username then I expect not including
a username would give me a "Authentication failed(320)" also
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