Taxii poll script - Can't handle multiple message bindings

[adambaumeister]

Describe the bug

Taxii services that publish multiple message bindings fail to be parsed by minemeld.

Expected behavior

Taxii service should look through list of provided message bindings to determine compatibility.

Current behavior

Taxii script simply pulls the first element of the list of message bindings, and if it is not 1.1, reports it as failed.

Possible solution

Change this

        for pi in tci.polling_service_instances:
            LOG.info('{} - message binding: {}'.format(
                self.name, pi.poll_message_bindings
            ))
            if pi.poll_message_bindings[0] == libtaxii.constants.VID_TAXII_XML_11:
                self.poll_service = pi.poll_address
                LOG.info('{} - poll service found'.format(self.name))
                break

To this

        for pi in tci.polling_service_instances:
            LOG.info('{} - message binding: {}'.format(
                self.name, pi.poll_message_bindings
            ))
            if libtaxii.constants.VID_TAXII_XML_11 in pi.poll_message_bindings:
                self.poll_service = pi.poll_address
                LOG.info('{} - poll service found'.format(self.name))
                break

Screenshots

Example Collecton output
Service Type: COLLECTION_MANAGEMENT
Service Version: urn:taxii.mitre.org:services:1.1
Protocol Binding: urn:taxii.mitre.org:protocol:https:1.0
Service Address: https://blah.this.is.not.real.com/taxii/acsc/services/collections
Message Binding: urn:taxii.mitre.org:message:xml:1.0
Message Binding: urn:taxii.mitre.org:message:xml:1.1
Available: True
Message: example

Context

Your Environment

• Version used: 0.9.66 (Container)