sfa/importer/slabimporter.py

   1 import os
   2 import sys
   3 import datetime
   4 import time
   5
   6 from sfa.util.config import Config
   7 from sfa.util.xrn import Xrn, get_leaf, get_authority, hrn_to_urn
   8 from sfa.util.plxrn import PlXrn, slicename_to_hrn, email_to_hrn, hrn_to_pl_slicename
   9
  10 from sfa.senslab.LDAPapi import LDAPapi
  11 from sfa.senslab.slabdriver import SlabDriver
  12 from sfa.senslab.slabpostgres import SlabDB
  13
  14 from sfa.trust.certificate import Keypair,convert_public_key
  15 from sfa.trust.gid import create_uuid
  16
  17 from sfa.storage.alchemy import dbsession
  18 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
  19
  20 def _get_site_hrn(site):
  21     hrn = site['login_base']
  22     return hrn
  23
  24 class SlabImporter:
  25
  26     def __init__ (self, auth_hierarchy, logger):
  27         self.auth_hierarchy = auth_hierarchy
  28         self.logger=logger
  29
  30     def hostname_to_hrn(self,root_auth,login_base,hostname):
  31         return PlXrn(auth=root_auth,hostname=login_base+'_'+hostname).get_hrn()
  32
  33     def slicename_to_hrn(self, person_hrn):
  34         return  (person_hrn +'_slice')
  35
  36     def add_options (self, parser):
  37         # we don't have any options for now
  38         pass
  39
  40     def find_record_by_type_hrn(self,type,hrn):
  41         return self.records_by_type_hrn.get ( (type, hrn), None)
  42
  43     def update_just_added_records_dict (self, record):
  44         tuple = (record.type, record.hrn)
  45         if tuple in self.records_by_type_hrn:
  46             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  47             return
  48         self.records_by_type_hrn [ tuple ] = record
  49
  50     def run (self, options):
  51         config = Config()
  52         interface_hrn = config.SFA_INTERFACE_HRN
  53         root_auth = config.SFA_REGISTRY_ROOT_AUTH
  54         slabdriver = SlabDriver(config)
  55
  56         #Create special slice table for senslab
  57         db = SlabDB()
  58         if not db.exists('slice_senslab'):
  59             db.createtable('slice_senslab')
  60        ######## retrieve all existing SFA objects
  61         all_records = dbsession.query(RegRecord).all()
  62          # create hash by (type,hrn)
  63         # used  to know if a given record is already known to SFA
  64
  65         self.records_by_type_hrn = \
  66             dict ( [ ( (record.type, record.hrn) , record ) for record in all_records ] )
  67
  68         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  69         for record in all_records:
  70             record.stale=True
  71
  72         nodes_listdict  = slabdriver.GetNodes()
  73         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  74         sites_listdict  = slabdriver.GetSites()
  75
  76         ldap_person_listdict = slabdriver.GetPersons()
  77         slices_listdict = slabdriver.GetSlices()
  78         for site in sites_listdict:
  79             site_hrn = _get_site_hrn(site)
  80             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
  81             if not site_record:
  82                 try:
  83                     urn = hrn_to_urn(site_hrn, 'authority')
  84                     if not self.auth_hierarchy.auth_exists(urn):
  85                         self.auth_hierarchy.create_auth(urn)
  86                     auth_info = self.auth_hierarchy.get_auth_info(urn)
  87                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
  88                                                pointer='-1',
  89                                                authority=get_authority(site_hrn))
  90                     site_record.just_created()
  91                     dbsession.add(site_record)
  92                     dbsession.commit()
  93                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
  94                     self.update_just_added_records_dict (site_record)
  95                 except:
  96                     # if the site import fails then there is no point in trying to import the
  97                     # site's child records (node, slices, persons), so skip them.
  98                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
  99                     continue
 100             else:
 101                 # xxx update the record ...
 102                 pass
 103             site_record.stale=False
 104
 105          # import node records in site
 106             for node_id in site['node_ids']:
 107                 try:
 108                     node = nodes_by_id[node_id]
 109                 except:
 110                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 111                     continue
 112                 site_auth = get_authority(site_hrn)
 113                 site_name = site['login_base']
 114                 hrn =  self.hostname_to_hrn(root_auth, site_name, node['hostname'])
 115                 # xxx this sounds suspicious
 116                 if len(hrn) > 64: hrn = hrn[:64]
 117                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 118                 print >>sys.stderr, " \r\n \r\n SLAB IMPORTER node_record %s " %(node_record)
 119                 if not node_record:
 120                     try:
 121                         pkey = Keypair(create=True)
 122                         urn = hrn_to_urn(hrn, 'node')
 123                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER NODE IMPORT urn %s hrn %s" %(urn, hrn)
 124                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 125                         node_record = RegNode (hrn=hrn, gid=node_gid,
 126                                                 pointer =node['node_id'],
 127                                                 authority=get_authority(hrn))
 128                         node_record.just_created()
 129                         dbsession.add(node_record)
 130                         dbsession.commit()
 131                         self.logger.info("SlabImporter: imported node: %s" % node_record)
 132                         print>>sys.stderr, "\r\n \t\t\t SLAB IMPORTER NODE IMPORT NOTnode_record %s " %(node_record)
 133                         self.update_just_added_records_dict(node_record)
 134                     except:
 135                         self.logger.log_exc("SlabImporter: failed to import node")
 136                 else:
 137                     # xxx update the record ...
 138                     pass
 139                 node_record.stale=False
 140
 141
 142             # import persons
 143             for person in ldap_person_listdict :
 144
 145                 person_hrn = person['hrn']
 146                 slice_hrn = self.slicename_to_hrn(person['hrn'],'_slice')
 147
 148                 # xxx suspicious again
 149                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 150                 person_urn = hrn_to_urn(person_hrn, 'user')
 151
 152                 user_record = self.find_record_by_type_hrn( 'user', person_hrn)
 153                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 154                 print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT user_record %s " %(user_record)
 155
 156
 157                 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 158                 def init_person_key (person, slab_key):
 159                     pubkey=None
 160                     if  person['pkey']:
 161                         # randomly pick first key in set
 162                         pubkey = slab_key
 163                         try:
 164                             pkey = convert_public_key(pubkey)
 165                         except:
 166                             self.logger.warn('SlabImporter: unable to convert public key for %s' % person_hrn)
 167                             pkey = Keypair(create=True)
 168                     else:
 169                         # the user has no keys. Creating a random keypair for the user's gid
 170                         self.logger.warn("SlabImporter: person %s does not have a PL public key"%person_hrn)
 171                         pkey = Keypair(create=True)
 172                     return (pubkey, pkey)
 173
 174
 175                 try:
 176                     slab_key = person['pkey']
 177                     # new person
 178                     if not user_record:
 179                         (pubkey,pkey) = init_person_key (person, slab_key )
 180                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 181                         person_gid.set_email(person['email'])
 182                         user_record = RegUser (hrn=person_hrn, gid=person_gid,
 183                                                  pointer='-1',
 184                                                  authority=get_authority(person_hrn),
 185                                                  email=person['email'])
 186                         if pubkey:
 187                             user_record.reg_keys=[RegKey (pubkey)]
 188                         else:
 189                             self.logger.warning("No key found for user %s"%user_record)
 190                         user_record.just_created()
 191                         dbsession.add (user_record)
 192                         dbsession.commit()
 193                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 194                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 195                         self.update_just_added_records_dict( user_record )
 196                     else:
 197                         # update the record ?
 198                         # if user's primary key has changed then we need to update the
 199                         # users gid by forcing an update here
 200                         sfa_keys = user_record.reg_keys
 201                         #def key_in_list (key,sfa_keys):
 202                             #for reg_key in sfa_keys:
 203                                 #if reg_key.key==key['key']: return True
 204                             #return False
 205                         # is there a new key in myplc ?
 206                         new_keys=False
 207                         if key is not sfa_keys :
 208                             new_keys = True
 209                         if new_keys:
 210                             (pubkey,pkey) = init_person_key (person, slab_key)
 211                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 212                             if not pubkey:
 213                                 user_record.reg_keys=[]
 214                             else:
 215                                 user_record.reg_keys=[ RegKey (pubkey)]
 216                             self.logger.info("SlabImporter: updated person: %s" % user_record)
 217                     user_record.email = person['email']
 218                     dbsession.commit()
 219                     user_record.stale=False
 220                 except:
 221                     self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 222
 223                 if not slice_record:
 224                     try:
 225                         pkey = Keypair(create=True)
 226                         urn = hrn_to_urn(slice_hrn, 'slice')
 227                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 228                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 229                                                     pointer='-1',
 230                                                     authority=get_authority(slice_hrn))
 231                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record%s " %(slice_record)
 232                         slice_record.just_created()
 233                         dbsession.add(slice_record)
 234                         dbsession.commit()
 235                         self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 236                         self.remember_record ( slice_record )
 237                     except:
 238                         self.logger.log_exc("SlabImporter: failed to import slice")
 239                 else:
 240                     # xxx update the record ...
 241                     self.logger.warning ("Slice update not yet implemented")
 242                     pass
 243                 # record current users affiliated with the slice
 244                 slice_record.reg_researchers = \
 245                     [ self.locate_by_type_pointer ('user',user_id) for user_id in slice['person_ids'] ]
 246                 dbsession.commit()
 247                 slice_record.stale=False
 248
 249
 250
 251          ### remove stale records
 252         # special records must be preserved
 253         system_hrns = [interface_hrn, root_auth, interface_hrn + '.slicemanager']
 254         for record in all_records:
 255             if record.hrn in system_hrns:
 256                 record.stale=False
 257             if record.peer_authority:
 258                 record.stale=False
 259
 260
 261         for record in all_records:
 262             try:
 263                 stale=record.stale
 264             except:
 265                 stale=True
 266                 self.logger.warning("stale not found with %s"%record)
 267             if stale:
 268                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 269                 dbsession.delete(record)
 270                 dbsession.commit()
 271
 272
 273