sfa/importer/slabimporter.py

   1 import sys
   2
   3 from sfa.util.config import Config
   4 from sfa.util.xrn import Xrn, get_authority, hrn_to_urn
   5
   6 from sfa.senslab.slabdriver import SlabDriver
   7 from sfa.senslab.slabpostgres import SliceSenslab, slab_dbsession
   8
   9 from sfa.trust.certificate import Keypair,convert_public_key
  10 from sfa.trust.gid import create_uuid
  11
  12 from sfa.storage.alchemy import dbsession
  13 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, \
  14                                                     RegUser, RegKey
  15
  16
  17 from sqlalchemy.exc import SQLAlchemyError
  18
  19
  20 def _get_site_hrn(site):
  21     hrn = site['name']
  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_escaped(self, root_auth, hostname):
  31         return '.'.join( [root_auth,Xrn.escape(hostname)] )
  32
  33
  34
  35     def slicename_to_hrn(self, person_hrn):
  36         return  (person_hrn +'_slice')
  37
  38     def add_options (self, parser):
  39         # we don't have any options for now
  40         pass
  41
  42     def find_record_by_type_hrn(self,type,hrn):
  43         return self.records_by_type_hrn.get ( (type, hrn), None)
  44
  45     def locate_by_type_pointer (self, type, pointer):
  46         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  47         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  48         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  "
  49         return ret
  50
  51     def update_just_added_records_dict (self, record):
  52         tuple = (record.type, record.hrn)
  53         if tuple in self.records_by_type_hrn:
  54             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  55             return
  56         self.records_by_type_hrn [ tuple ] = record
  57
  58     def run (self, options):
  59         config = Config()
  60
  61         slabdriver = SlabDriver(config)
  62
  63         #Create special slice table for senslab
  64
  65         if not slabdriver.db.exists('slice_senslab'):
  66             slabdriver.db.createtable('slice_senslab')
  67             self.logger.info ("SlabImporter.run:  slice_senslab table created ")
  68
  69         #retrieve all existing SFA objects
  70         all_records = dbsession.query(RegRecord).all()
  71
  72         #create hash by (type,hrn)
  73         #used  to know if a given record is already known to SFA
  74
  75         self.records_by_type_hrn = \
  76             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  77
  78         # create hash by (type,pointer)
  79         self.records_by_type_pointer = \
  80             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  81
  82         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  83         for record in all_records:
  84             record.stale=True
  85
  86         nodes_listdict  = slabdriver.GetNodes()
  87         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  88         sites_listdict  = slabdriver.GetSites()
  89
  90         ldap_person_listdict = slabdriver.GetPersons()
  91         slices_listdict = slabdriver.GetSlices()
  92         try:
  93             slices_by_userid = dict ( [ (one_slice['record_id_user'], one_slice ) for one_slice in slices_listdict ] )
  94         except TypeError:
  95              self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
  96              pass
  97
  98         for site in sites_listdict:
  99             site_hrn = _get_site_hrn(site)
 100             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 101             if not site_record:
 102                 try:
 103                     urn = hrn_to_urn(site_hrn, 'authority')
 104                     if not self.auth_hierarchy.auth_exists(urn):
 105                         self.auth_hierarchy.create_auth(urn)
 106                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 107                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 108                                                pointer='-1',
 109                                                authority=get_authority(site_hrn))
 110                     site_record.just_created()
 111                     dbsession.add(site_record)
 112                     dbsession.commit()
 113                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 114                     self.update_just_added_records_dict(site_record)
 115                 except SQLAlchemyError:
 116                     # if the site import fails then there is no point in trying to import the
 117                     # site's child records (node, slices, persons), so skip them.
 118                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
 119                     continue
 120             else:
 121                 # xxx update the record ...
 122                 pass
 123             site_record.stale=False
 124
 125          # import node records in site
 126             for node_id in site['node_ids']:
 127                 try:
 128                     node = nodes_by_id[node_id]
 129                 except:
 130                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 131                     continue
 132                 site_auth = get_authority(site_hrn)
 133                 site_name = site['name']
 134                 escaped_hrn =  self.hostname_to_hrn_escaped(slabdriver.root_auth, node['hostname'])
 135                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 136                 hrn =  node['hrn']
 137
 138
 139                 # xxx this sounds suspicious
 140                 if len(hrn) > 64: hrn = hrn[:64]
 141                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 142                 if not node_record:
 143                     try:
 144                         pkey = Keypair(create=True)
 145                         urn = hrn_to_urn(escaped_hrn, 'node')
 146                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 147                         node_record = RegNode (hrn=hrn, gid=node_gid,
 148                                                 pointer = '-1',
 149                                                 authority=get_authority(hrn))
 150                         node_record.just_created()
 151                         dbsession.add(node_record)
 152                         dbsession.commit()
 153                         self.logger.info("SlabImporter: imported node: %s" % node_record)
 154                         self.update_just_added_records_dict(node_record)
 155                     except:
 156                         self.logger.log_exc("SlabImporter: failed to import node")
 157                 else:
 158                     # xxx update the record ...
 159                     pass
 160                 node_record.stale=False
 161
 162
 163             # import persons
 164             for person in ldap_person_listdict :
 165
 166                 person_hrn = person['hrn']
 167                 slice_hrn = self.slicename_to_hrn(person['hrn'])
 168
 169                 # xxx suspicious again
 170                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 171                 person_urn = hrn_to_urn(person_hrn, 'user')
 172
 173                 user_record = self.find_record_by_type_hrn( 'user', person_hrn)
 174                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 175
 176                 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 177                 def init_person_key (person, slab_key):
 178                     pubkey=None
 179                     if  person['pkey']:
 180                         # randomly pick first key in set
 181                         pubkey = slab_key
 182                         try:
 183                             pkey = convert_public_key(pubkey)
 184                         except:
 185                             self.logger.warn('SlabImporter: unable to convert public key for %s' % person_hrn)
 186                             pkey = Keypair(create=True)
 187                     else:
 188                         # the user has no keys. Creating a random keypair for the user's gid
 189                         self.logger.warn("SlabImporter: person %s does not have a PL public key"%person_hrn)
 190                         pkey = Keypair(create=True)
 191                     return (pubkey, pkey)
 192
 193
 194                 try:
 195                     slab_key = person['pkey']
 196                     # new person
 197                     if not user_record:
 198                         (pubkey,pkey) = init_person_key (person, slab_key )
 199                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 200                         if person['email']:
 201                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 202                             person_gid.set_email(person['email'])
 203                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 204                                                     pointer='-1',
 205                                                     authority=get_authority(person_hrn),
 206                                                     email=person['email'])
 207                         else:
 208                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 209                                                     pointer='-1',
 210                                                     authority=get_authority(person_hrn))
 211
 212                         if pubkey:
 213                             user_record.reg_keys=[RegKey (pubkey)]
 214                         else:
 215                             self.logger.warning("No key found for user %s"%user_record)
 216                         user_record.just_created()
 217                         dbsession.add (user_record)
 218                         dbsession.commit()
 219                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 220                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 221                         self.update_just_added_records_dict( user_record )
 222                     else:
 223                         # update the record ?
 224                         # if user's primary key has changed then we need to update the
 225                         # users gid by forcing an update here
 226                         sfa_keys = user_record.reg_keys
 227
 228                         new_key=False
 229                         if slab_key is not sfa_keys :
 230                             new_key = True
 231                         if new_key:
 232                             (pubkey,pkey) = init_person_key (person, slab_key)
 233                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 234                             if not pubkey:
 235                                 user_record.reg_keys=[]
 236                             else:
 237                                 user_record.reg_keys=[ RegKey (pubkey)]
 238                             self.logger.info("SlabImporter: updated person: %s" % user_record)
 239                     if person['email']:
 240                         user_record.email = person['email']
 241                     dbsession.commit()
 242                     user_record.stale=False
 243                 except:
 244                     self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 245
 246                 try:
 247                     slice = slices_by_userid[user_record.record_id]
 248                 except:
 249                     self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record.record_id )
 250                 if not slice_record:
 251
 252                     try:
 253                         pkey = Keypair(create=True)
 254                         urn = hrn_to_urn(slice_hrn, 'slice')
 255                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 256                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 257                                                     pointer='-1',
 258                                                     authority=get_authority(slice_hrn))
 259
 260                         slice_record.just_created()
 261                         dbsession.add(slice_record)
 262                         dbsession.commit()
 263
 264                         #Serial id created after commit
 265                         #Get it
 266                         sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 267
 268                         slab_slice = SliceSenslab( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 269                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 270                         slab_dbsession.add(slab_slice)
 271                         slab_dbsession.commit()
 272                         self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 273                         self.update_just_added_records_dict ( slice_record )
 274                     except:
 275                         self.logger.log_exc("SlabImporter: failed to import slice")
 276
 277                 #No slice update upon import in senslab
 278                 else:
 279                     # xxx update the record ...
 280                     self.logger.warning ("Slice update not yet implemented")
 281                     pass
 282                 # record current users affiliated with the slice
 283
 284                 slice_record.reg_researchers =  [user_record]
 285                 dbsession.commit()
 286                 slice_record.stale=False
 287
 288
 289
 290          ### remove stale records
 291         # special records must be preserved
 292         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 293         for record in all_records:
 294             if record.hrn in system_hrns:
 295                 record.stale=False
 296             if record.peer_authority:
 297                 record.stale=False
 298
 299
 300         for record in all_records:
 301             try:
 302                 stale=record.stale
 303             except:
 304                 stale=True
 305                 self.logger.warning("stale not found with %s"%record)
 306             if stale:
 307                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 308                 dbsession.delete(record)
 309                 dbsession.commit()
 310
 311
 312