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