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, \
  15                                                     RegUser, RegKey
  16
  17
  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
  31     def hostname_to_hrn(self,root_auth,login_base,hostname):
  32         return PlXrn(auth=root_auth,hostname = hostname).get_hrn()
  33
  34     def slicename_to_hrn(self, person_hrn):
  35         return  (person_hrn +'_slice')
  36
  37     def add_options (self, parser):
  38         # we don't have any options for now
  39         pass
  40
  41     def find_record_by_type_hrn(self,type,hrn):
  42         return self.records_by_type_hrn.get ( (type, hrn), None)
  43
  44     def locate_by_type_pointer (self, type, pointer):
  45         ret = self.records_by_type_pointer.get ( (type, pointer), None)
  46         return ret
  47
  48     def update_just_added_records_dict (self, record):
  49         record_tuple = (record.type, record.hrn)
  50         if record_tuple in self.records_by_type_hrn:
  51             self.logger.warning ("SlabImporter.update_just_added_records_dict: \
  52                                             duplicate (%s,%s)" %(record_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 ) \
  75                                                 for record in all_records ] )
  76
  77         # create hash by (type,pointer)
  78         self.records_by_type_pointer = \
  79             dict ( [ ( (str(record.type),record.pointer), record ) \
  80                             for record in all_records  if record.pointer != -1])
  81
  82         # initialize record.stale to True by default,
  83         #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 ([(slice.record_id_user, slice ) \
  95                                                 for slice in slices_listdict])
  96         except TypeError:
  97              self.logger.log_exc("SlabImporter: failed to create list \
  98                                                         of slices by user id.")
  99              pass
 100
 101         for site in sites_listdict:
 102             site_hrn = _get_site_hrn(site)
 103             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 104             if not site_record:
 105                 try:
 106                     urn = hrn_to_urn(site_hrn, 'authority')
 107                     if not self.auth_hierarchy.auth_exists(urn):
 108                         self.auth_hierarchy.create_auth(urn)
 109                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 110                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 111                                                pointer='-1',
 112                                                authority=get_authority(site_hrn))
 113                     site_record.just_created()
 114                     dbsession.add(site_record)
 115                     dbsession.commit()
 116                     self.logger.info("SlabImporter: imported authority (site) \
 117                                                     : %s" % (site_record))
 118                     self.update_just_added_records_dict(site_record)
 119                 except:
 120                     # if the site import fails then there is no point in
 121                     # trying to import the
 122                     # site's child records (node, slices, persons), so skip them.
 123                     self.logger.log_exc("SlabImporter: failed to import site. \
 124                                                         Skipping child records")
 125                     continue
 126             else:
 127                 # xxx update the record ...
 128                 pass
 129             site_record.stale=False
 130
 131          # import node records in site
 132             for node_id in site['node_ids']:
 133                 try:
 134                     node = nodes_by_id[node_id]
 135                 except:
 136                     self.logger.warning ("SlabImporter: cannot find node_id \
 137                                             %s - ignored" %(node_id))
 138                     continue
 139                 site_auth = get_authority(site_hrn)
 140                 site_name = site['name']
 141                 hrn =  self.hostname_to_hrn(slabdriver.root_auth, site_name, \
 142                                                             node['hostname'])
 143                 # xxx this sounds suspicious
 144                 if len(hrn) > 64: hrn = hrn[:64]
 145                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 146                 if not node_record:
 147                     try:
 148                         pkey = Keypair(create=True)
 149                         urn = hrn_to_urn(hrn, 'node')
 150                         node_gid = self.auth_hierarchy.create_gid(urn, \
 151                                                         create_uuid(), pkey)
 152                         node_record = RegNode (hrn=hrn, gid=node_gid,
 153                                                 pointer = '-1',
 154                                                 authority=get_authority(hrn))
 155                         node_record.just_created()
 156                         dbsession.add(node_record)
 157                         dbsession.commit()
 158                         self.logger.info("SlabImporter: imported node: %s" \
 159                                                             %(node_record))
 160                         print>>sys.stderr, "\r\n \t\t\t SLAB IMPORTER NODE IMPORT NOTnode_record %s " %(node_record)
 161                         self.update_just_added_records_dict(node_record)
 162                     except:
 163                         self.logger.log_exc("SlabImporter: failed to import node")
 164                 else:
 165                     # xxx update the record ...
 166                     pass
 167                 node_record.stale=False
 168
 169
 170             # import persons
 171             for person in ldap_person_listdict :
 172
 173                 person_hrn = person['hrn']
 174                 slice_hrn = self.slicename_to_hrn(person['hrn'])
 175
 176                 # xxx suspicious again
 177                 if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 178                 person_urn = hrn_to_urn(person_hrn, 'user')
 179
 180                 user_record = self.find_record_by_type_hrn( 'user', person_hrn)
 181                 slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 182
 183                 # return a tuple pubkey (a plc key object) and pkey
 184                 # (a Keypair object)
 185                 def init_person_key (person, slab_key):
 186                     pubkey=None
 187                     if  person['pkey']:
 188                         # randomly pick first key in set
 189                         pubkey = slab_key
 190                         try:
 191                             pkey = convert_public_key(pubkey)
 192                         except:
 193                             self.logger.warning('SlabImporter: unable to convert \
 194                                             public key for %s' %(person_hrn))
 195                             pkey = Keypair(create=True)
 196                     else:
 197                         # the user has no keys. Creating a random keypair
 198                         # for the user's gid
 199                         self.logger.warn("SlabImporter: person %s does not \
 200                                             have a  public key" %(person_hrn))
 201                         pkey = Keypair(create=True)
 202                     return (pubkey, pkey)
 203
 204
 205                 try:
 206                     slab_key = person['pkey']
 207                     # new person
 208                     if not user_record:
 209                         (pubkey,pkey) = init_person_key(person, slab_key )
 210                         person_gid = self.auth_hierarchy.create_gid(\
 211                                                 person_urn, create_uuid(), pkey)
 212                         if person['email']:
 213                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 214                             person_gid.set_email(person['email'])
 215                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 216                                                     pointer='-1',
 217                                                     authority=get_authority(person_hrn),
 218                                                     email=person['email'])
 219                         else:
 220                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 221                                                     pointer='-1',
 222                                                     authority=get_authority(person_hrn))
 223
 224                         if pubkey:
 225                             user_record.reg_keys = [RegKey (pubkey)]
 226                         else:
 227                             self.logger.warning("No key found for user %s" \
 228                                                         %(user_record))
 229                         user_record.just_created()
 230                         dbsession.add (user_record)
 231                         dbsession.commit()
 232                         self.logger.info("SlabImporter: imported person: %s" \
 233                                                          %(user_record))
 234                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON IMPORT NOTuser_record %s " %(user_record)
 235                         self.update_just_added_records_dict(user_record)
 236                     else:
 237                         # update the record ?
 238                         # if user's primary key has changed then we need to update the
 239                         # users gid by forcing an update here
 240                         sfa_keys = user_record.reg_keys
 241
 242                         new_key=False
 243                         if slab_key is not sfa_keys :
 244                             new_key = True
 245                         if new_key:
 246                             (pubkey,pkey) = init_person_key (person, slab_key)
 247                             person_gid = self.auth_hierarchy.create_gid(\
 248                                                 person_urn, create_uuid(), pkey)
 249                             if not pubkey:
 250                                 user_record.reg_keys = []
 251                             else:
 252                                 user_record.reg_keys = [RegKey(pubkey)]
 253                             self.logger.info("SlabImporter: updated person: \
 254                                                     %s" %(user_record))
 255                     if person['email']:
 256                         user_record.email = person['email']
 257                     dbsession.commit()
 258                     user_record.stale=False
 259                 except:
 260                     self.logger.log_exc("SlabImporter: \
 261                                     failed to import person  %s"%(person) )
 262
 263                 try:
 264                     slice = slices_by_userid[user_record.record_id]
 265                 except:
 266                     self.logger.warning ("SlabImporter: \
 267                     cannot locate slices_by_userid[user_record.record_id] %s\
 268                                      - ignored" %(user_record.record_id ))
 269                 if not slice_record:
 270
 271                     try:
 272                         pkey = Keypair(create=True)
 273                         urn = hrn_to_urn(slice_hrn, 'slice')
 274                         slice_gid = self.auth_hierarchy.create_gid(urn, \
 275                                                         create_uuid(), pkey)
 276                         slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 277                                                     pointer='-1',
 278                                                     authority=get_authority(slice_hrn))
 279
 280                         slice_record.just_created()
 281                         dbsession.add(slice_record)
 282                         dbsession.commit()
 283
 284                         #Serial id created after commit
 285                         #Get it
 286                         sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 287
 288                         slab_slice = SliceSenslab(slice_hrn=slice_hrn, \
 289                                         record_id_slice=sl_rec[0].record_id, \
 290                                         record_id_user= user_record.record_id)
 291                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 292                         slab_dbsession.add(slab_slice)
 293                         slab_dbsession.commit()
 294                         self.logger.info("SlabImporter: imported slice: %s" \
 295                                                     %(slice_record) )
 296                         self.update_just_added_records_dict ( slice_record )
 297                     except:
 298                         self.logger.log_exc("SlabImporter: failed to import slice")
 299
 300                 #No slice update upon import in senslab
 301                 else:
 302                     # xxx update the record ...
 303                     self.logger.warning ("Slice update not yet implemented")
 304                     pass
 305                 # record current users affiliated with the slice
 306
 307                 slice_record.reg_researchers =  [user_record]
 308                 dbsession.commit()
 309                 slice_record.stale=False
 310
 311
 312
 313          ### remove stale records
 314         # special records must be preserved
 315         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 316         for record in all_records:
 317             if record.hrn in system_hrns:
 318                 record.stale=False
 319             if record.peer_authority:
 320                 record.stale=False
 321
 322
 323         for record in all_records:
 324             try:
 325                 stale=record.stale
 326             except:
 327                 stale=True
 328                 self.logger.warning("stale not found with %s"%record)
 329             if stale:
 330                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 331                 dbsession.delete(record)
 332                 dbsession.commit()
 333
 334
 335