sfa/importer/slabimporter.py

   1 import sys
   2
   3 from sfa.util.config import Config
   4 from sfa.util.xrn import get_authority, hrn_to_urn
   5 from sfa.planetlab.plxrn import PlXrn
   6
   7 from sfa.senslab.slabdriver import SlabDriver
   8 from sfa.senslab.slabpostgres import SliceSenslab, slab_dbsession
   9
  10 from sfa.trust.certificate import Keypair,convert_public_key
  11 from sfa.trust.gid import create_uuid
  12
  13 from sfa.storage.alchemy import dbsession
  14 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, RegUser, RegKey
  15
  16
  17
  18
  19 def _get_site_hrn(site):
  20     hrn = site['name']
  21     return hrn
  22
  23 class SlabImporter:
  24
  25     def __init__ (self, auth_hierarchy, logger):
  26         self.auth_hierarchy = auth_hierarchy
  27         self.logger=logger
  28
  29
  30     def hostname_to_hrn(self,root_auth,login_base,hostname):
  31         return PlXrn(auth=root_auth,hostname = 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 locate_by_type_pointer (self, type, pointer):
  44         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  45         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  46         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  "
  47         return ret
  48
  49     def update_just_added_records_dict (self, record):
  50         tuple = (record.type, record.hrn)
  51         if tuple in self.records_by_type_hrn:
  52             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  53             return
  54         self.records_by_type_hrn [ tuple ] = record
  55
  56     def run (self, options):
  57         config = Config()
  58
  59         slabdriver = SlabDriver(config)
  60
  61         #Create special slice table for senslab
  62
  63         if not slabdriver.db.exists('slice_senslab'):
  64             slabdriver.db.createtable('slice_senslab')
  65             self.logger.info ("SlabImporter.run:  slice_senslab table created ")
  66
  67         #retrieve all existing SFA objects
  68         all_records = dbsession.query(RegRecord).all()
  69
  70         #create hash by (type,hrn)
  71         #used  to know if a given record is already known to SFA
  72
  73         self.records_by_type_hrn = \
  74             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  75
  76         # create hash by (type,pointer)
  77         self.records_by_type_pointer = \
  78             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  79
  80         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  81         for record in all_records:
  82             record.stale=True
  83
  84         nodes_listdict  = slabdriver.GetNodes()
  85         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  86         sites_listdict  = slabdriver.GetSites()
  87
  88         ldap_person_listdict = slabdriver.GetPersons()
  89         slices_listdict = slabdriver.GetSlices()
  90         try:
  91             slices_by_userid = dict ( [ (slice.record_id_user, slice ) for slice in slices_listdict ] )
  92         except TypeError:
  93              self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
  94              pass
  95
  96         for site in sites_listdict:
  97             site_hrn = _get_site_hrn(site)
  98             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
  99             if not site_record:
 100                 try:
 101                     urn = hrn_to_urn(site_hrn, 'authority')
 102                     if not self.auth_hierarchy.auth_exists(urn):
 103                         self.auth_hierarchy.create_auth(urn)
 104                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 105                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 106                                                pointer='-1',
 107                                                authority=get_authority(site_hrn))
 108                     site_record.just_created()
 109                     dbsession.add(site_record)
 110                     dbsession.commit()
 111                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 112                     self.update_just_added_records_dict(site_record)
 113                 except:
 114                     # if the site import fails then there is no point in trying to import the
 115                     # site's child records (node, slices, persons), so skip them.
 116                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
 117                     continue
 118             else:
 119                 # xxx update the record ...
 120                 pass
 121             site_record.stale=False
 122
 123          # import node records in site
 124             for node_id in site['node_ids']:
 125                 try:
 126                     node = nodes_by_id[node_id]
 127                 except:
 128                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 129                     continue
 130                 site_auth = get_authority(site_hrn)
 131                 site_name = site['name']
 132                 hrn =  self.hostname_to_hrn(slabdriver.root_auth, site_name, node['hostname'])
 133                 # xxx this sounds suspicious
 134                 if len(hrn) > 64: hrn = hrn[:64]
 135                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 136                 if not node_record:
 137                     try:
 138                         pkey = Keypair(create=True)
 139                         urn = hrn_to_urn(hrn, 'node')
 140                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 141                         node_record = RegNode (hrn=hrn, gid=node_gid,
 142                                                 pointer = '-1',
 143                                                 authority=get_authority(hrn))
 144                         node_record.just_created()
 145                         dbsession.add(node_record)
 146                         dbsession.commit()
 147                         self.logger.info("SlabImporter: imported node: %s" % node_record)
 148                         print>>sys.stderr, "\r\n \t\t\t SLAB IMPORTER NODE IMPORT NOTnode_record %s " %(node_record)
 149                         self.update_just_added_records_dict(node_record)
 150                     except:
 151                         self.logger.log_exc("SlabImporter: failed to import node")
 152                 else:
 153                     # xxx update the record ...
 154                     pass
 155                 node_record.stale=False
 156
 157
 158             # import persons
 159             for person in ldap_person_listdict :
 160
 161                 person_hrn = person['hrn']
 162                 slice_hrn = self.slicename_to_hrn(person['hrn'])
 163
 164                 # xxx suspicious again
 165                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 166                 person_urn = hrn_to_urn(person_hrn, 'user')
 167
 168                 user_record = self.find_record_by_type_hrn( 'user', person_hrn)
 169                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 170
 171                 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 172                 def init_person_key (person, slab_key):
 173                     pubkey=None
 174                     if  person['pkey']:
 175                         # randomly pick first key in set
 176                         pubkey = slab_key
 177                         try:
 178                             pkey = convert_public_key(pubkey)
 179                         except:
 180                             self.logger.warn('SlabImporter: unable to convert public key for %s' % person_hrn)
 181                             pkey = Keypair(create=True)
 182                     else:
 183                         # the user has no keys. Creating a random keypair for the user's gid
 184                         self.logger.warn("SlabImporter: person %s does not have a PL public key"%person_hrn)
 185                         pkey = Keypair(create=True)
 186                     return (pubkey, pkey)
 187
 188
 189                 try:
 190                     slab_key = person['pkey']
 191                     # new person
 192                     if not user_record:
 193                         (pubkey,pkey) = init_person_key (person, slab_key )
 194                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 195                         if person['email']:
 196                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 197                             person_gid.set_email(person['email'])
 198                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 199                                                     pointer='-1',
 200                                                     authority=get_authority(person_hrn),
 201                                                     email=person['email'])
 202                         else:
 203                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 204                                                     pointer='-1',
 205                                                     authority=get_authority(person_hrn))
 206
 207                         if pubkey:
 208                             user_record.reg_keys=[RegKey (pubkey)]
 209                         else:
 210                             self.logger.warning("No key found for user %s"%user_record)
 211                         user_record.just_created()
 212                         dbsession.add (user_record)
 213                         dbsession.commit()
 214                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 215                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 216                         self.update_just_added_records_dict( user_record )
 217                     else:
 218                         # update the record ?
 219                         # if user's primary key has changed then we need to update the
 220                         # users gid by forcing an update here
 221                         sfa_keys = user_record.reg_keys
 222
 223                         new_key=False
 224                         if slab_key is not sfa_keys :
 225                             new_key = True
 226                         if new_key:
 227                             (pubkey,pkey) = init_person_key (person, slab_key)
 228                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 229                             if not pubkey:
 230                                 user_record.reg_keys=[]
 231                             else:
 232                                 user_record.reg_keys=[ RegKey (pubkey)]
 233                             self.logger.info("SlabImporter: updated person: %s" % user_record)
 234                     if person['email']:
 235                         user_record.email = person['email']
 236                     dbsession.commit()
 237                     user_record.stale=False
 238                 except:
 239                     self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 240
 241                 try:
 242                     slice = slices_by_userid[user_record.record_id]
 243                 except:
 244                     self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record.record_id )
 245                 if not slice_record:
 246
 247                     try:
 248                         pkey = Keypair(create=True)
 249                         urn = hrn_to_urn(slice_hrn, 'slice')
 250                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 251                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 252                                                     pointer='-1',
 253                                                     authority=get_authority(slice_hrn))
 254
 255                         slice_record.just_created()
 256                         dbsession.add(slice_record)
 257                         dbsession.commit()
 258
 259                         #Serial id created after commit
 260                         #Get it
 261                         sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 262
 263                         slab_slice = SliceSenslab( slice_hrn = slice_hrn,  record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 264                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 265                         slab_dbsession.add(slab_slice)
 266                         slab_dbsession.commit()
 267                         self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 268                         self.update_just_added_records_dict ( slice_record )
 269                     except:
 270                         self.logger.log_exc("SlabImporter: failed to import slice")
 271
 272                 #No slice update upon import in senslab
 273                 else:
 274                     # xxx update the record ...
 275                     self.logger.warning ("Slice update not yet implemented")
 276                     pass
 277                 # record current users affiliated with the slice
 278
 279                 slice_record.reg_researchers =  [user_record]
 280                 dbsession.commit()
 281                 slice_record.stale=False
 282
 283
 284
 285          ### remove stale records
 286         # special records must be preserved
 287         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 288         for record in all_records:
 289             if record.hrn in system_hrns:
 290                 record.stale=False
 291             if record.peer_authority:
 292                 record.stale=False
 293
 294
 295         for record in all_records:
 296             try:
 297                 stale=record.stale
 298             except:
 299                 stale=True
 300                 self.logger.warning("stale not found with %s"%record)
 301             if stale:
 302                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 303                 dbsession.delete(record)
 304                 dbsession.commit()
 305
 306
 307