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 SenslabXP, 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('slab_xp'):
  67             slabdriver.db.createtable()
  68             self.logger.info ("SlabImporter.run:  slab_xp 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         print>>sys.stderr,"\r\n SLABIMPORT \t all_records[0] %s all_records[0].email %s \r\n" %(all_records[0].type, all_records[0])
  79         self.users_rec_by_email = \
  80             dict ( [ (record.email, record) for record in all_records if record.type == 'user' ] )
  81
  82         # create hash by (type,pointer)
  83         self.records_by_type_pointer = \
  84             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  85
  86         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  87         for record in all_records:
  88             record.stale=True
  89
  90         nodes_listdict  = slabdriver.GetNodes()
  91         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  92         sites_listdict  = slabdriver.GetSites()
  93
  94         ldap_person_listdict = slabdriver.GetPersons()
  95         print>>sys.stderr,"\r\n SLABIMPORT \t ldap_person_listdict %s \r\n" %(ldap_person_listdict)
  96         slices_listdict = slabdriver.GetSlices()
  97         try:
  98             slices_by_userid = dict ( [ (one_slice['reg_researchers']['record_id'], one_slice ) for one_slice in slices_listdict ] )
  99         except TypeError:
 100              self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
 101              pass
 102
 103         for site in sites_listdict:
 104             site_hrn = _get_site_hrn(site)
 105             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 106             if not site_record:
 107                 try:
 108                     urn = hrn_to_urn(site_hrn, 'authority')
 109                     if not self.auth_hierarchy.auth_exists(urn):
 110                         self.auth_hierarchy.create_auth(urn)
 111                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 112                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 113                                                pointer='-1',
 114                                                authority=get_authority(site_hrn))
 115                     site_record.just_created()
 116                     dbsession.add(site_record)
 117                     dbsession.commit()
 118                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 119                     self.update_just_added_records_dict(site_record)
 120                 except SQLAlchemyError:
 121                     # if the site import fails then there is no point in 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. Skipping child records")
 124                     continue
 125             else:
 126                 # xxx update the record ...
 127                 pass
 128             site_record.stale=False
 129
 130          # import node records in site
 131             for node_id in site['node_ids']:
 132                 try:
 133                     node = nodes_by_id[node_id]
 134                 except:
 135                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 136                     continue
 137                 site_auth = get_authority(site_hrn)
 138                 site_name = site['name']
 139                 escaped_hrn =  self.hostname_to_hrn_escaped(slabdriver.root_auth, node['hostname'])
 140                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 141                 hrn =  node['hrn']
 142
 143
 144                 # xxx this sounds suspicious
 145                 if len(hrn) > 64: hrn = hrn[:64]
 146                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 147                 if not node_record:
 148                     try:
 149                         pkey = Keypair(create=True)
 150                         urn = hrn_to_urn(escaped_hrn, 'node')
 151                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 152                         def slab_get_authority(hrn):
 153                             return hrn.split(".")[0]
 154
 155                         node_record = RegNode (hrn=hrn, gid=node_gid,
 156                                                 pointer = '-1',
 157                                                 authority=slab_get_authority(hrn))
 158                         node_record.just_created()
 159                         dbsession.add(node_record)
 160                         dbsession.commit()
 161                         #self.logger.info("SlabImporter: imported node: %s" % node_record)
 162                         self.update_just_added_records_dict(node_record)
 163                     except:
 164                         self.logger.log_exc("SlabImporter: failed to import node")
 165                 else:
 166                     # xxx update the record ...
 167                     pass
 168                 node_record.stale=False
 169
 170
 171         # import persons
 172         for person in ldap_person_listdict :
 173
 174
 175             print>>sys.stderr,"SlabImporter: person: %s" %(person['hrn'])
 176             if 'ssh-rsa' not in person['pkey']:
 177                 #people with invalid ssh key (ssh-dss, empty, bullshit keys...)
 178                 #won't be imported
 179                 continue
 180             person_hrn = person['hrn']
 181             slice_hrn = self.slicename_to_hrn(person['hrn'])
 182
 183             # xxx suspicious again
 184             if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 185             person_urn = hrn_to_urn(person_hrn, 'user')
 186
 187
 188             print>>sys.stderr," \r\n SlabImporter:  HEYYYYYYYYYY" , self.users_rec_by_email
 189
 190             #Check if user using person['email'] form LDAP is already registered
 191             #in SFA. One email = one person. Inb this case, do not create another
 192             #record for this person
 193             #person_hrn  returned by GetPErson based on senslab root auth + uid ldap
 194             user_record = self.find_record_by_type_hrn('user', person_hrn)
 195             if not user_record and  person['email'] in self.users_rec_by_email:
 196                 user_record = self.users_rec_by_email[person['email']]
 197                 person_hrn = user_record.hrn
 198                 person_urn = hrn_to_urn(person_hrn, 'user')
 199
 200
 201             slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 202
 203             # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 204             def init_person_key (person, slab_key):
 205                 pubkey = None
 206                 if  person['pkey']:
 207                     # randomly pick first key in set
 208                     pubkey = slab_key
 209
 210                     try:
 211                         pkey = convert_public_key(pubkey)
 212                     except TypeError:
 213                         #key not good. create another pkey
 214                         self.logger.warn('SlabImporter: \
 215                                             unable to convert public \
 216                                             key for %s' % person_hrn)
 217                         pkey = Keypair(create=True)
 218
 219                 else:
 220                     # the user has no keys. Creating a random keypair for the user's gid
 221                     self.logger.warn("SlabImporter: person %s does not have a  public key"%person_hrn)
 222                     pkey = Keypair(create=True)
 223                 return (pubkey, pkey)
 224
 225
 226             try:
 227                 slab_key = person['pkey']
 228                 # new person
 229                 if not user_record:
 230                     (pubkey,pkey) = init_person_key (person, slab_key )
 231                     if pubkey is not None and pkey is not None :
 232                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 233                         if person['email']:
 234                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 235                             person_gid.set_email(person['email'])
 236                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 237                                                     pointer='-1',
 238                                                     authority=get_authority(person_hrn),
 239                                                     email=person['email'])
 240                         else:
 241                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 242                                                     pointer='-1',
 243                                                     authority=get_authority(person_hrn))
 244
 245                         if pubkey:
 246                             user_record.reg_keys = [RegKey (pubkey)]
 247                         else:
 248                             self.logger.warning("No key found for user %s"%user_record)
 249                         user_record.just_created()
 250                         dbsession.add (user_record)
 251                         dbsession.commit()
 252                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 253                         self.update_just_added_records_dict( user_record )
 254                 else:
 255                     # update the record ?
 256                     # if user's primary key has changed then we need to update the
 257                     # users gid by forcing an update here
 258                     sfa_keys = user_record.reg_keys
 259
 260                     new_key=False
 261                     if slab_key is not sfa_keys :
 262                         new_key = True
 263                     if new_key:
 264                         print>>sys.stderr,"SlabImporter: \t \t USER UPDATE person: %s" %(person['hrn'])
 265                         (pubkey,pkey) = init_person_key (person, slab_key)
 266                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 267                         if not pubkey:
 268                             user_record.reg_keys=[]
 269                         else:
 270                             user_record.reg_keys=[ RegKey (pubkey)]
 271                         self.logger.info("SlabImporter: updated person: %s" % user_record)
 272
 273                     if person['email']:
 274                         user_record.email = person['email']
 275
 276                 dbsession.commit()
 277
 278                 user_record.stale = False
 279             except:
 280                 self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 281
 282             try:
 283                 slice = slices_by_userid[user_record.record_id]
 284             except:
 285                 self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record)
 286
 287             if not slice_record :
 288                 try:
 289                     pkey = Keypair(create=True)
 290                     urn = hrn_to_urn(slice_hrn, 'slice')
 291                     slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 292                     slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 293                                                 pointer='-1',
 294                                                 authority=get_authority(slice_hrn))
 295
 296                     slice_record.just_created()
 297                     dbsession.add(slice_record)
 298                     dbsession.commit()
 299
 300                     #Serial id created after commit
 301                     #Get it
 302                     sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 303
 304                     #slab_slice = SenslabXP( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 305                     #print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 306                     #slab_dbsession.add(slab_slice)
 307                     #slab_dbsession.commit()
 308                     #self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 309                     self.update_just_added_records_dict ( slice_record )
 310
 311                 except:
 312                     self.logger.log_exc("SlabImporter: failed to import slice")
 313
 314             #No slice update upon import in senslab
 315             else:
 316                 # xxx update the record ...
 317                 self.logger.warning ("Slice update not yet implemented")
 318                 pass
 319             # record current users affiliated with the slice
 320
 321
 322             slice_record.reg_researchers =  [user_record]
 323             dbsession.commit()
 324             slice_record.stale=False
 325
 326
 327
 328          ### remove stale records
 329         # special records must be preserved
 330         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 331         for record in all_records:
 332             if record.hrn in system_hrns:
 333                 record.stale=False
 334             if record.peer_authority:
 335                 record.stale=False
 336
 337
 338         for record in all_records:
 339             if record.type == 'user':
 340                 print>>sys.stderr,"SlabImporter: stale records: hrn %s %s" %(record.hrn,record.stale)
 341             try:
 342                 stale=record.stale
 343             except:
 344                 stale=True
 345                 self.logger.warning("stale not found with %s"%record)
 346             if stale:
 347                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 348                 #if record.type == 'user':
 349                     #rec = slab_dbsession.query(SenslabXP).filter_by(record_id_user = record.record_id).first()
 350                     #slab_dbsession.delete(rec)
 351                     #slab_dbsession.commit()
 352                 dbsession.delete(record)
 353                 dbsession.commit()
 354
 355
 356