sfa/importer/plimporter.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, hrn_to_pl_slicename
   6
   7 from sfa.trust.gid import create_uuid
   8 from sfa.trust.certificate import convert_public_key, Keypair
   9
  10 from sfa.storage.alchemy import dbsession
  11 from sfa.storage.model import RegRecord, RegAuthority, RegUser, RegSlice, RegNode
  12
  13 from sfa.plc.plshell import PlShell
  14
  15 def load_keys(filename):
  16     keys = {}
  17     tmp_dict = {}
  18     try:
  19         execfile(filename, tmp_dict)
  20         if 'keys' in tmp_dict:
  21             keys = tmp_dict['keys']
  22         return keys
  23     except:
  24         return keys
  25
  26 def save_keys(filename, keys):
  27     f = open(filename, 'w')
  28     f.write("keys = %s" % str(keys))
  29     f.close()
  30
  31 def _get_site_hrn(interface_hrn, site):
  32     # Hardcode 'internet2' into the hrn for sites hosting
  33     # internet2 nodes. This is a special operation for some vini
  34     # sites only
  35     hrn = ".".join([interface_hrn, site['login_base']])
  36     if ".vini" in interface_hrn and interface_hrn.endswith('vini'):
  37         if site['login_base'].startswith("i2") or site['login_base'].startswith("nlr"):
  38             hrn = ".".join([interface_hrn, "internet2", site['login_base']])
  39     return hrn
  40
  41
  42 class PlImporter:
  43
  44     def __init__ (self, auth_hierarchy, logger):
  45         self.auth_hierarchy = auth_hierarchy
  46         self.logger=logger
  47
  48     def record_options (self, parser):
  49         self.logger.debug ("PlImporter no options yet")
  50         pass
  51
  52     def run (self, options):
  53         # we don't have any options for now
  54         self.logger.info ("PlImporter.run : to do")
  55
  56         config = Config ()
  57         interface_hrn = config.SFA_INTERFACE_HRN
  58         root_auth = config.SFA_REGISTRY_ROOT_AUTH
  59         shell = PlShell (config)
  60
  61         # create dict of all existing sfa records
  62         existing_records = {}
  63         existing_hrns = []
  64         key_ids = []
  65         for record in dbsession.query(RegRecord):
  66             existing_records[ (record.hrn, record.type,) ] = record
  67             existing_hrns.append(record.hrn)
  68
  69         # Get all plc sites
  70         sites = shell.GetSites({'peer_id': None})
  71         sites_dict = {}
  72         for site in sites:
  73             sites_dict[site['login_base']] = site
  74
  75         # Get all plc users
  76         persons = shell.GetPersons({'peer_id': None, 'enabled': True},
  77                                    ['person_id', 'email', 'key_ids', 'site_ids'])
  78         persons_dict = {}
  79         for person in persons:
  80             persons_dict[person['person_id']] = person
  81             key_ids.extend(person['key_ids'])
  82
  83         # Get all public keys
  84         keys = shell.GetKeys( {'peer_id': None, 'key_id': key_ids})
  85         keys_dict = {}
  86         for key in keys:
  87             keys_dict[key['key_id']] = key['key']
  88
  89         # create a dict of person keys keyed on key_id
  90         keys_filename = config.config_path + os.sep + 'person_keys.py'
  91         old_person_keys = load_keys(keys_filename)
  92         person_keys = {}
  93         for person in persons:
  94             pubkeys = []
  95             for key_id in person['key_ids']:
  96                 pubkeys.append(keys_dict[key_id])
  97             person_keys[person['person_id']] = pubkeys
  98
  99         # Get all plc nodes
 100         nodes = shell.GetNodes( {'peer_id': None}, ['node_id', 'hostname', 'site_id'])
 101         nodes_dict = {}
 102         for node in nodes:
 103             nodes_dict[node['node_id']] = node
 104
 105         # Get all plc slices
 106         slices = shell.GetSlices( {'peer_id': None}, ['slice_id', 'name'])
 107         slices_dict = {}
 108         for slice in slices:
 109             slices_dict[slice['slice_id']] = slice
 110
 111         # special case for vini
 112         if ".vini" in interface_hrn and interface_hrn.endswith('vini'):
 113             # create a fake internet2 site first
 114             i2site = {'name': 'Internet2', 'abbreviated_name': 'I2',
 115                         'login_base': 'internet2', 'site_id': -1}
 116             site_hrn = _get_site_hrn(interface_hrn, i2site)
 117             # import if hrn is not in list of existing hrns or if the hrn exists
 118             # but its not a site record
 119             if site_hrn not in existing_hrns or \
 120                (site_hrn, 'authority') not in existing_records:
 121                 urn = hrn_to_urn(site_hrn, 'authority')
 122                 if not self.auth_hierarchy.auth_exists(urn):
 123                     self.auth_hierarchy.create_auth(urn)
 124                 auth_info = self.auth_hierarchy.get_auth_info(urn)
 125                 auth_record = RegAuthority()
 126                 auth_record.type='authority'
 127                 auth_record.hrn=site_hrn
 128                 auth_record.gid=auth_info.get_gid_object()
 129                 auth_record.pointer=site['site_id']
 130                 auth_record.authority=get_authority(site_hrn)
 131                 dbsession.add(auth_record)
 132                 dbsession.commit()
 133                 self.logger.info("Import: Imported authority (vini site) %s"%auth_record)
 134
 135         # start importing
 136         for site in sites:
 137             site_hrn = _get_site_hrn(interface_hrn, site)
 138
 139             # import if hrn is not in list of existing hrns or if the hrn exists
 140             # but its not a site record
 141             if site_hrn not in existing_hrns or \
 142                (site_hrn, 'authority') not in existing_records:
 143                 try:
 144                     urn = hrn_to_urn(site_hrn, 'authority')
 145                     if not self.auth_hierarchy.auth_exists(urn):
 146                         self.auth_hierarchy.create_auth(urn)
 147                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 148                     auth_record = RegAuthority()
 149                     auth_record.type='authority'
 150                     auth_record.hrn=site_hrn
 151                     auth_record.gid=auth_info.get_gid_object()
 152                     auth_record.pointer=site['site_id']
 153                     auth_record.authority=get_authority(site_hrn)
 154                     dbsession.add(auth_record)
 155                     dbsession.commit()
 156                     self.logger.info("Import: imported authority (site) : %s" % auth_record)
 157                 except:
 158                     # if the site import fails then there is no point in trying to import the
 159                     # site's child records (node, slices, persons), so skip them.
 160                     self.logger.log_exc("Import: failed to import site. Skipping child records")
 161                     continue
 162
 163             # import node records
 164             for node_id in site['node_ids']:
 165                 if node_id not in nodes_dict:
 166                     continue
 167                 node = nodes_dict[node_id]
 168                 site_auth = get_authority(site_hrn)
 169                 site_name = get_leaf(site_hrn)
 170                 hrn =  hostname_to_hrn(site_auth, site_name, node['hostname'])
 171                 if len(hrn) > 64:
 172                     hrn = hrn[:64]
 173                 if hrn not in existing_hrns or \
 174                    (hrn, 'node') not in existing_records:
 175                     try:
 176                         pkey = Keypair(create=True)
 177                         urn = hrn_to_urn(hrn, 'node')
 178                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 179                         node_record = RegNode ()
 180                         node_record.type='node'
 181                         node_record.hrn=hrn
 182                         node_record.gid=node_gid
 183                         node_record.pointer =node['node_id']
 184                         node_record.authority=get_authority(hrn)
 185                         dbsession.add(node_record)
 186                         dbsession.commit()
 187                         self.logger.info("Import: imported node: %s" % node_record)
 188                     except:
 189                         self.logger.log_exc("Import: failed to import node")
 190
 191
 192             # import slices
 193             for slice_id in site['slice_ids']:
 194                 if slice_id not in slices_dict:
 195                     continue
 196                 slice = slices_dict[slice_id]
 197                 hrn = slicename_to_hrn(interface_hrn, slice['name'])
 198                 if hrn not in existing_hrns or \
 199                    (hrn, 'slice') not in existing_records:
 200                     try:
 201                         pkey = Keypair(create=True)
 202                         urn = hrn_to_urn(hrn, 'slice')
 203                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 204                         slice_record = RegSlice ()
 205                         slice_record.type='slice'
 206                         slice_record.hrn=hrn
 207                         slice_record.gid=slice_gid
 208                         slice_record.pointer=slice['slice_id']
 209                         slice_record.authority=get_authority(hrn)
 210                         dbsession.add(slice_record)
 211                         dbsession.commit()
 212                         self.logger.info("Import: imported slice: %s" % slice_record)
 213                     except:
 214                         self.logger.log_exc("Import: failed to  import slice")
 215
 216             # import persons
 217             for person_id in site['person_ids']:
 218                 if person_id not in persons_dict:
 219                     continue
 220                 person = persons_dict[person_id]
 221                 hrn = email_to_hrn(site_hrn, person['email'])
 222                 if len(hrn) > 64:
 223                     hrn = hrn[:64]
 224
 225                 # if user's primary key has changed then we need to update the
 226                 # users gid by forcing an update here
 227                 old_keys = []
 228                 new_keys = []
 229                 if person_id in old_person_keys:
 230                     old_keys = old_person_keys[person_id]
 231                 if person_id in person_keys:
 232                     new_keys = person_keys[person_id]
 233                 update_record = False
 234                 for key in new_keys:
 235                     if key not in old_keys:
 236                         update_record = True
 237
 238                 if hrn not in existing_hrns or \
 239                    (hrn, 'user') not in existing_records or update_record:
 240                     try:
 241                         if 'key_ids' in person and person['key_ids']:
 242                             key = new_keys[0]
 243                             try:
 244                                 pkey = convert_public_key(key)
 245                             except:
 246                                 self.logger.warn('unable to convert public key for %s' % hrn)
 247                                 pkey = Keypair(create=True)
 248                         else:
 249                             # the user has no keys. Creating a random keypair for the user's gid
 250                             self.logger.warn("Import: person %s does not have a PL public key"%hrn)
 251                             pkey = Keypair(create=True)
 252                         urn = hrn_to_urn(hrn, 'user')
 253                         person_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 254                         person_record = RegUser ()
 255                         person_record.type='user'
 256                         person_record.hrn=hrn
 257                         person_record.gid=person_gid
 258                         person_record.pointer=person['person_id']
 259                         person_record.authority=get_authority(hrn)
 260                         dbsession.add (person_record)
 261                         dbsession.commit()
 262                         self.logger.info("Import: imported person: %s" % person_record)
 263                     except:
 264                         self.logger.log_exc("Import: failed to import person.")
 265
 266         # remove stale records
 267         system_records = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
 268         for (record_hrn, type) in existing_records.keys():
 269             if record_hrn in system_records:
 270                 continue
 271
 272             record = existing_records[(record_hrn, type)]
 273             if record.peer_authority:
 274                 continue
 275
 276             # dont delete vini's internet2 placeholdder record
 277             # normally this would be deleted becuase it does not have a plc record
 278             if ".vini" in interface_hrn and interface_hrn.endswith('vini') and \
 279                record_hrn.endswith("internet2"):
 280                 continue
 281
 282             found = False
 283
 284             if type == 'authority':
 285                 for site in sites:
 286                     site_hrn = interface_hrn + "." + site['login_base']
 287                     if site_hrn == record_hrn and site['site_id'] == record.pointer:
 288                         found = True
 289                         break
 290
 291             elif type == 'user':
 292                 login_base = get_leaf(get_authority(record_hrn))
 293                 username = get_leaf(record_hrn)
 294                 if login_base in sites_dict:
 295                     site = sites_dict[login_base]
 296                     for person in persons:
 297                         tmp_username = person['email'].split("@")[0]
 298                         alt_username = person['email'].split("@")[0].replace(".", "_").replace("+", "_")
 299                         if username in [tmp_username, alt_username] and \
 300                            site['site_id'] in person['site_ids'] and \
 301                            person['person_id'] == record.pointer:
 302                             found = True
 303                             break
 304
 305             elif type == 'slice':
 306                 slicename = hrn_to_pl_slicename(record_hrn)
 307                 for slice in slices:
 308                     if slicename == slice['name'] and \
 309                        slice['slice_id'] == record.pointer:
 310                         found = True
 311                         break
 312
 313             elif type == 'node':
 314                 login_base = get_leaf(get_authority(record_hrn))
 315                 nodename = Xrn.unescape(get_leaf(record_hrn))
 316                 if login_base in sites_dict:
 317                     site = sites_dict[login_base]
 318                     for node in nodes:
 319                         tmp_nodename = node['hostname']
 320                         if tmp_nodename == nodename and \
 321                            node['site_id'] == site['site_id'] and \
 322                            node['node_id'] == record.pointer:
 323                             found = True
 324                             break
 325             else:
 326                 continue
 327
 328             if not found:
 329                 try:
 330                     record_object = existing_records[(record_hrn, type)]
 331                     self.logger.info("Import: deleting record: %s" % record)
 332                     dbsession.delete(record_object)
 333                     dbsession.commit()
 334                 except:
 335                     self.logger.log_exc("Import: failded to delete record")
 336
 337         # save pub keys
 338         self.logger.info('Import: saving current pub keys')
 339         save_keys(keys_filename, person_keys)
 340