sfa/importer/openstackimporter.py

   1 import os
   2
   3 from sfa.util.config import Config
   4 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
   5 from sfa.util.plxrn import hostname_to_hrn, slicename_to_hrn, email_to_hrn
   6 from sfa.trust.gid import create_uuid
   7 from sfa.trust.certificate import convert_public_key, Keypair
   8 from sfa.storage.alchemy import dbsession
   9 from sfa.storage.model import RegRecord, RegAuthority, RegUser, RegSlice, RegNode
  10 from sfa.openstack.nova_shell import NovaShell
  11
  12 def load_keys(filename):
  13     keys = {}
  14     tmp_dict = {}
  15     try:
  16         execfile(filename, tmp_dict)
  17         if 'keys' in tmp_dict:
  18             keys = tmp_dict['keys']
  19         return keys
  20     except:
  21         return keys
  22
  23 def save_keys(filename, keys):
  24     f = open(filename, 'w')
  25     f.write("keys = %s" % str(keys))
  26     f.close()
  27
  28 class OpenstackImporter:
  29
  30     def __init__ (self, auth_hierarchy, logger):
  31         self.auth_hierarchy = auth_hierarchy
  32         self.logger=logger
  33
  34     def add_options (self, parser):
  35         self.logger.debug ("OpenstackImporter: no options yet")
  36         pass
  37
  38     def run (self, options):
  39         # we don't have any options for now
  40         self.logger.info ("OpenstackImporter.run : to do")
  41
  42         config = Config ()
  43         interface_hrn = config.SFA_INTERFACE_HRN
  44         root_auth = config.SFA_REGISTRY_ROOT_AUTH
  45         shell = NovaShell (config)
  46
  47         # create dict of all existing sfa records
  48         existing_records = {}
  49         existing_hrns = []
  50         key_ids = []
  51         for record in dbsession.query(RegRecord):
  52             existing_records[ (record.hrn, record.type,) ] = record
  53             existing_hrns.append(record.hrn)
  54
  55         # Get all users
  56         persons = shell.auth_manager.get_users()
  57         persons_dict = {}
  58         keys_filename = config.config_path + os.sep + 'person_keys.py'
  59         old_person_keys = load_keys(keys_filename)
  60         person_keys = {}
  61         for person in persons:
  62             hrn = config.SFA_INTERFACE_HRN + "." + person.id
  63             persons_dict[hrn] = person
  64             old_keys = old_person_keys.get(person.id, [])
  65             keys = [k.public_key for k in shell.db.key_pair_get_all_by_user(person.id)]
  66             person_keys[person.id] = keys
  67             update_record = False
  68             if old_keys != keys:
  69                 update_record = True
  70             if hrn not in existing_hrns or \
  71                    (hrn, 'user') not in existing_records or update_record:
  72                 urn = hrn_to_urn(hrn, 'user')
  73
  74                 if keys:
  75                     try:
  76                         pkey = convert_public_key(keys[0])
  77                     except:
  78                         self.logger.log_exc('unable to convert public key for %s' % hrn)
  79                         pkey = Keypair(create=True)
  80                 else:
  81                     self.logger.warn("OpenstackImporter: person %s does not have a PL public key"%hrn)
  82                     pkey = Keypair(create=True)
  83                 person_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
  84                 person_record = RegUser ()
  85                 person_record.type='user'
  86                 person_record.hrn=hrn
  87                 person_record.gid=person_gid
  88                 person_record.authority=get_authority(hrn)
  89                 dbsession.add(person_record)
  90                 dbsession.commit()
  91                 self.logger.info("OpenstackImporter: imported person %s" % person_record)
  92
  93         # Get all projects
  94         projects = shell.auth_manager.get_projects()
  95         projects_dict = {}
  96         for project in projects:
  97             hrn = config.SFA_INTERFACE_HRN + '.' + project.id
  98             projects_dict[hrn] = project
  99             if hrn not in existing_hrns or \
 100             (hrn, 'slice') not in existing_records:
 101                 pkey = Keypair(create=True)
 102                 urn = hrn_to_urn(hrn, 'slice')
 103                 project_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 104                 project_record = RegSlice ()
 105                 project_record.type='slice'
 106                 project_record.hrn=hrn
 107                 project_record.gid=project_gid
 108                 project_record.authority=get_authority(hrn)
 109                 dbsession.add(project_record)
 110                 dbsession.commit()
 111                 self.logger.info("OpenstackImporter: imported slice: %s" % project_record)
 112
 113         # remove stale records
 114         system_records = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
 115         for (record_hrn, type) in existing_records.keys():
 116             if record_hrn in system_records:
 117                 continue
 118
 119             record = existing_records[(record_hrn, type)]
 120             if record.peer_authority:
 121                 continue
 122
 123             if type == 'user':
 124                 if record_hrn in persons_dict:
 125                     continue
 126             elif type == 'slice':
 127                 if record_hrn in projects_dict:
 128                     continue
 129             else:
 130                 continue
 131
 132             record_object = existing_records[ (record_hrn, type) ]
 133             self.logger.info("OpenstackImporter: removing %s " % record)
 134             dbsession.delete(record_object)
 135             dbsession.commit()
 136
 137         # save pub keys
 138         self.logger.info('OpenstackImporter: saving current pub keys')
 139         save_keys(keys_filename, person_keys)
 140