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 from sfa.util.sfalogging import logger
  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, loc_logger):
  27         self.auth_hierarchy = auth_hierarchy
  28         self.logger = loc_logger
  29         self.logger.setLevelDebug()
  30
  31     def hostname_to_hrn_escaped(self, root_auth, hostname):
  32         return '.'.join( [root_auth,Xrn.escape(hostname)] )
  33
  34
  35
  36     def slicename_to_hrn(self, person_hrn):
  37         return  (person_hrn +'_slice')
  38
  39     def add_options (self, parser):
  40         # we don't have any options for now
  41         pass
  42
  43     def find_record_by_type_hrn(self,type,hrn):
  44         return self.records_by_type_hrn.get ( (type, hrn), None)
  45
  46     def locate_by_type_pointer (self, type, pointer):
  47         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  48         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  49         print>>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  "
  50         return ret
  51
  52     def update_just_added_records_dict (self, record):
  53         tuple = (record.type, record.hrn)
  54         if tuple in self.records_by_type_hrn:
  55             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%tuple)
  56             return
  57         self.records_by_type_hrn [ tuple ] = record
  58
  59     def run (self, options):
  60         config = Config()
  61
  62         slabdriver = SlabDriver(config)
  63
  64         #Create special slice table for senslab
  65
  66         if not slabdriver.db.exists('slice_senslab'):
  67             slabdriver.db.createtable('slice_senslab')
  68             self.logger.info ("SlabImporter.run:  slice_senslab table created ")
  69
  70         #retrieve all existing SFA objects
  71         all_records = dbsession.query(RegRecord).all()
  72
  73         #create hash by (type,hrn)
  74         #used  to know if a given record is already known to SFA
  75
  76         self.records_by_type_hrn = \
  77             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  78
  79         # create hash by (type,pointer)
  80         self.records_by_type_pointer = \
  81             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  82
  83         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  84         for record in all_records:
  85             record.stale=True
  86
  87         nodes_listdict  = slabdriver.GetNodes()
  88         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  89         sites_listdict  = slabdriver.GetSites()
  90
  91         ldap_person_listdict = slabdriver.GetPersons()
  92         slices_listdict = slabdriver.GetSlices()
  93         try:
  94             slices_by_userid = dict ( [ (one_slice['record_id_user'], one_slice ) for one_slice in slices_listdict ] )
  95         except TypeError:
  96              self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
  97              pass
  98
  99         for site in sites_listdict:
 100             site_hrn = _get_site_hrn(site)
 101             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 102             if not site_record:
 103                 try:
 104                     urn = hrn_to_urn(site_hrn, 'authority')
 105                     if not self.auth_hierarchy.auth_exists(urn):
 106                         self.auth_hierarchy.create_auth(urn)
 107                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 108                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 109                                                pointer='-1',
 110                                                authority=get_authority(site_hrn))
 111                     site_record.just_created()
 112                     dbsession.add(site_record)
 113                     dbsession.commit()
 114                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 115                     self.update_just_added_records_dict(site_record)
 116                 except SQLAlchemyError:
 117                     # if the site import fails then there is no point in trying to import the
 118                     # site's child records (node, slices, persons), so skip them.
 119                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
 120                     continue
 121             else:
 122                 # xxx update the record ...
 123                 pass
 124             site_record.stale=False
 125
 126          # import node records in site
 127             for node_id in site['node_ids']:
 128                 try:
 129                     node = nodes_by_id[node_id]
 130                 except:
 131                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 132                     continue
 133                 site_auth = get_authority(site_hrn)
 134                 site_name = site['name']
 135                 escaped_hrn =  self.hostname_to_hrn_escaped(slabdriver.root_auth, node['hostname'])
 136                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 137                 hrn =  node['hrn']
 138
 139
 140                 # xxx this sounds suspicious
 141                 if len(hrn) > 64: hrn = hrn[:64]
 142                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 143                 if not node_record:
 144                     try:
 145                         pkey = Keypair(create=True)
 146                         urn = hrn_to_urn(escaped_hrn, 'node')
 147                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 148                         def slab_get_authority(hrn):
 149                             return hrn.split(".")[0]
 150
 151                         node_record = RegNode (hrn=hrn, gid=node_gid,
 152                                                 pointer = '-1',
 153                                                 authority=slab_get_authority(hrn))
 154                         node_record.just_created()
 155                         dbsession.add(node_record)
 156                         dbsession.commit()
 157                         self.logger.info("SlabImporter: imported node: %s" % node_record)
 158                         self.update_just_added_records_dict(node_record)
 159                     except:
 160                         self.logger.log_exc("SlabImporter: failed to import node")
 161                 else:
 162                     # xxx update the record ...
 163                     pass
 164                 node_record.stale=False
 165
 166
 167             # import persons
 168             for person in ldap_person_listdict :
 169                 if 'ssh-rsa' not in person['pkey']:
 170                     continue
 171                 person_hrn = person['hrn']
 172                 slice_hrn = self.slicename_to_hrn(person['hrn'])
 173
 174                 # xxx suspicious again
 175                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 176                 person_urn = hrn_to_urn(person_hrn, 'user')
 177
 178                 user_record = self.find_record_by_type_hrn('user', person_hrn)
 179                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 180
 181                 # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 182                 def init_person_key (person, slab_key):
 183                     pubkey = None
 184                     if  person['pkey']:
 185                         # randomly pick first key in set
 186                         pubkey = slab_key
 187
 188                         try:
 189                             pkey = convert_public_key(pubkey)
 190                         except TypeError:
 191                             #key not good. create another pkey
 192                             self.logger.warn('SlabImporter: \
 193                                                 unable to convert public \
 194                                                 key for %s' % person_hrn)
 195                             pkey = Keypair(create=True)
 196
 197                     else:
 198                         # the user has no keys. Creating a random keypair for the user's gid
 199                         self.logger.warn("SlabImporter: person %s does not have a PL public key"%person_hrn)
 200                         pkey = Keypair(create=True)
 201                     return (pubkey, pkey)
 202
 203
 204                 try:
 205                     slab_key = person['pkey']
 206                     # new person
 207                     if not user_record:
 208                         (pubkey,pkey) = init_person_key (person, slab_key )
 209                         if pubkey is not None and pkey is not None :
 210                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 211                             if person['email']:
 212                                 print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 213                                 person_gid.set_email(person['email'])
 214                                 user_record = RegUser (hrn=person_hrn, gid=person_gid,
 215                                                         pointer='-1',
 216                                                         authority=get_authority(person_hrn),
 217                                                         email=person['email'])
 218                             else:
 219                                 user_record = RegUser (hrn=person_hrn, gid=person_gid,
 220                                                         pointer='-1',
 221                                                         authority=get_authority(person_hrn))
 222
 223                             if pubkey:
 224                                 user_record.reg_keys = [RegKey (pubkey)]
 225                             else:
 226                                 self.logger.warning("No key found for user %s"%user_record)
 227                             user_record.just_created()
 228                             dbsession.add (user_record)
 229                             dbsession.commit()
 230                             self.logger.info("SlabImporter: imported person: %s" % user_record)
 231                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 232                             self.update_just_added_records_dict( user_record )
 233                     else:
 234                         # update the record ?
 235                         # if user's primary key has changed then we need to update the
 236                         # users gid by forcing an update here
 237                         sfa_keys = user_record.reg_keys
 238
 239                         new_key=False
 240                         if slab_key is not sfa_keys :
 241                             new_key = True
 242                         if new_key:
 243                             (pubkey,pkey) = init_person_key (person, slab_key)
 244                             person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 245                             if not pubkey:
 246                                 user_record.reg_keys=[]
 247                             else:
 248                                 user_record.reg_keys=[ RegKey (pubkey)]
 249                             self.logger.info("SlabImporter: updated person: %s" % user_record)
 250                     if person['email']:
 251                         user_record.email = person['email']
 252                     dbsession.commit()
 253                     user_record.stale=False
 254                 except:
 255                     self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 256
 257                 try:
 258                     slice = slices_by_userid[user_record.record_id]
 259                 except:
 260                     self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record)
 261
 262                 if not slice_record :
 263                     try:
 264                         pkey = Keypair(create=True)
 265                         urn = hrn_to_urn(slice_hrn, 'slice')
 266                         slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 267                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 268                                                     pointer='-1',
 269                                                     authority=get_authority(slice_hrn))
 270
 271                         slice_record.just_created()
 272                         dbsession.add(slice_record)
 273                         dbsession.commit()
 274
 275                         #Serial id created after commit
 276                         #Get it
 277                         sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 278
 279                         slab_slice = SliceSenslab( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 280                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 281                         slab_dbsession.add(slab_slice)
 282                         slab_dbsession.commit()
 283                         self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 284                         self.update_just_added_records_dict ( slice_record )
 285
 286                     except:
 287                         self.logger.log_exc("SlabImporter: failed to import slice")
 288
 289                 #No slice update upon import in senslab
 290                 else:
 291                     # xxx update the record ...
 292                     self.logger.warning ("Slice update not yet implemented")
 293                     pass
 294                 # record current users affiliated with the slice
 295
 296
 297                 slice_record.reg_researchers =  [user_record]
 298                 dbsession.commit()
 299                 slice_record.stale=False
 300
 301
 302
 303          ### remove stale records
 304         # special records must be preserved
 305         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 306         for record in all_records:
 307             if record.hrn in system_hrns:
 308                 record.stale=False
 309             if record.peer_authority:
 310                 record.stale=False
 311
 312
 313         for record in all_records:
 314             try:
 315                 stale=record.stale
 316             except:
 317                 stale=True
 318                 self.logger.warning("stale not found with %s"%record)
 319             if stale:
 320                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 321                 dbsession.delete(record)
 322                 dbsession.commit()
 323
 324
 325