Change cn actions to d1_python

[iannesbitt]

All of the commands that use curl have corresponding functions in the d1_client package. The onboarding script should be able to create a session then use it to create and validate subjects, and register nodes.

[iannesbitt]

This will supersede #24 and #25.

[iannesbitt]

In addition to tools available in d1_python, we can make use of the following functions in DataONE_Operations:

• once schema.org is found to comply to standards, node approval can be handled using approveNode rather than the current method which requires manual manipulation of a Java binary LDAP interface:

  import d1_admin_tools.d1_node_properties as d1_node
  nodeid = 'urn:node:mnTestCANWIN'
  ldappass = 'password'
  d1_node.approveNode(node_id=nodeid, ldap_pass=ldappass, approval=True)

• setting the four CN_ properties listed under the Preferred Custom Properties heading on this page (CN_node_name, CN_operational_status, CN_info_url, and CN_logo_url) can presumably be done using setNodesProperties:

  # assuming same imports and definitions as above
  node_prop_dict = {
      'urn:node:mnTestCANWIN': {'CN_node_name': 'Canadian Watershed Information Network',
                                'CN_operational_status': 'operational',
                                'CN_info_url': 'https://canwin-datahub.ad.umanitoba.ca/',
                                'CN_logo_url': 'https://raw.githubusercontent.com/DataONEorg/member-node-info/master/production/graphics/web/CANWIN.png',}
  }
  con = d1_node.getLDAPConnection(password=ldappass)
  d1_node.setNodesProperties(con=con, nodes_properties=node_prop_dict)

  An example configuration for mnTestHAKAI_IYS that uses these four newer CN_ properties is available by doing curl -k "https://cn-stage.test.dataone.org/cn/v2/node/urn:node:mnTestHAKAI_IYS" | xml fo