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
   8 from sfa.trust.certificate import Keypair, convert_public_key
   9 from sfa.trust.gid import create_uuid
  10
  11 from sfa.storage.alchemy import dbsession
  12 from sfa.storage.model import RegRecord, RegAuthority, RegSlice, RegNode, \
  13                                                     RegUser, RegKey
  14 from sfa.util.sfalogging import logger
  15
  16 from sqlalchemy.exc import SQLAlchemyError
  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, loc_logger):
  26         self.auth_hierarchy = auth_hierarchy
  27         self.logger = loc_logger
  28         self.logger.setLevelDebug()
  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, record_type, hrn):
  43         return self.records_by_type_hrn.get ( (record_type, hrn), None)
  44
  45     def locate_by_type_pointer (self, record_type, pointer):
  46         print >>sys.stderr, " \r\n \r\n \t SLABPOSTGRES locate_by_type_pointer  .........................."
  47         ret = self.records_by_type_pointer.get ( (record_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         rec_tuple = (record.type, record.hrn)
  53         if rec_tuple in self.records_by_type_hrn:
  54             self.logger.warning ("SlabImporter.update_just_added_records_dict: duplicate (%s,%s)"%rec_tuple)
  55             return
  56         self.records_by_type_hrn [ rec_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('slab_xp'):
  66             slabdriver.db.createtable()
  67             self.logger.info ("SlabImporter.run:  slab_xp table created ")
  68
  69         #retrieve all existing SFA objects
  70         all_records = dbsession.query(RegRecord).all()
  71
  72         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  73         for record in all_records:
  74             record.stale = True
  75         #create hash by (type,hrn)
  76         #used  to know if a given record is already known to SFA
  77
  78         self.records_by_type_hrn = \
  79             dict ( [ ( (record.type,record.hrn) , record ) for record in all_records ] )
  80         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])
  81         self.users_rec_by_email = \
  82             dict ( [ (record.email, record) for record in all_records if record.type == 'user' ] )
  83
  84         # create hash by (type,pointer)
  85         self.records_by_type_pointer = \
  86             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  87
  88
  89         nodes_listdict  = slabdriver.slab_api.GetNodes()
  90         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  91         sites_listdict  = slabdriver.slab_api.GetSites()
  92
  93         ldap_person_listdict = slabdriver.slab_api.GetPersons()
  94         print>>sys.stderr,"\r\n SLABIMPORT \t ldap_person_listdict %s \r\n" %(ldap_person_listdict)
  95         slices_listdict = slabdriver.slab_api.GetSlices()
  96         try:
  97             slices_by_userid = dict ( [ (one_slice['reg_researchers']['record_id'], one_slice ) for one_slice in slices_listdict ] )
  98         except TypeError:
  99             self.logger.log_exc("SlabImporter: failed to create list of slices by user id.")
 100             pass
 101
 102         for site in sites_listdict:
 103             site_hrn = _get_site_hrn(site)
 104             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 105             if not site_record:
 106                 try:
 107                     urn = hrn_to_urn(site_hrn, 'authority')
 108                     if not self.auth_hierarchy.auth_exists(urn):
 109                         self.auth_hierarchy.create_auth(urn)
 110                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 111                     site_record = RegAuthority(hrn=site_hrn, gid=auth_info.get_gid_object(),
 112                                                pointer='-1',
 113                                                authority=get_authority(site_hrn))
 114                     site_record.just_created()
 115                     dbsession.add(site_record)
 116                     dbsession.commit()
 117                     self.logger.info("SlabImporter: imported authority (site) : %s" % site_record)
 118                     self.update_just_added_records_dict(site_record)
 119                 except SQLAlchemyError:
 120                     # if the site import fails then there is no point in trying to import the
 121                     # site's child records (node, slices, persons), so skip them.
 122                     self.logger.log_exc("SlabImporter: failed to import site. Skipping child records")
 123                     continue
 124             else:
 125                 # xxx update the record ...
 126                 pass
 127             site_record.stale = False
 128
 129          # import node records in site
 130             for node_id in site['node_ids']:
 131                 try:
 132                     node = nodes_by_id[node_id]
 133                 except:
 134                     self.logger.warning ("SlabImporter: cannot find node_id %s - ignored"%node_id)
 135                     continue
 136                 site_auth = get_authority(site_hrn)
 137                 site_name = site['name']
 138                 escaped_hrn =  self.hostname_to_hrn_escaped(slabdriver.slab_api.root_auth, node['hostname'])
 139                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 140                 hrn =  node['hrn']
 141
 142
 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(escaped_hrn, 'node')
 150                         node_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 151                         def slab_get_authority(hrn):
 152                             return hrn.split(".")[0]
 153
 154                         node_record = RegNode (hrn=hrn, gid=node_gid,
 155                                                 pointer = '-1',
 156                                                 authority=slab_get_authority(hrn))
 157                         node_record.just_created()
 158                         dbsession.add(node_record)
 159                         dbsession.commit()
 160                         #self.logger.info("SlabImporter: imported node: %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
 174             print>>sys.stderr,"SlabImporter: person: %s" %(person)
 175             if 'ssh-rsa' not in person['pkey']:
 176                 #people with invalid ssh key (ssh-dss, empty, bullshit keys...)
 177                 #won't be imported
 178                 continue
 179             person_hrn = person['hrn']
 180             slice_hrn = self.slicename_to_hrn(person['hrn'])
 181
 182             # xxx suspicious again
 183             if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 184             person_urn = hrn_to_urn(person_hrn, 'user')
 185
 186
 187             print>>sys.stderr," \r\n SlabImporter:  HEYYYYYYYYYY" , self.users_rec_by_email
 188
 189             #Check if user using person['email'] form LDAP is already registered
 190             #in SFA. One email = one person. Inb this case, do not create another
 191             #record for this person
 192             #person_hrn  returned by GetPErson based on senslab root auth + uid ldap
 193             user_record = self.find_record_by_type_hrn('user', person_hrn)
 194             if not user_record and  person['email'] in self.users_rec_by_email:
 195                 user_record = self.users_rec_by_email[person['email']]
 196                 person_hrn = user_record.hrn
 197                 person_urn = hrn_to_urn(person_hrn, 'user')
 198
 199
 200             slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 201
 202             # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 203             def init_person_key (person, slab_key):
 204                 pubkey = None
 205                 if  person['pkey']:
 206                     # randomly pick first key in set
 207                     pubkey = slab_key
 208
 209                     try:
 210                         pkey = convert_public_key(pubkey)
 211                     except TypeError:
 212                         #key not good. create another pkey
 213                         self.logger.warn('SlabImporter: \
 214                                             unable to convert public \
 215                                             key for %s' % person_hrn)
 216                         pkey = Keypair(create=True)
 217
 218                 else:
 219                     # the user has no keys. Creating a random keypair for the user's gid
 220                     self.logger.warn("SlabImporter: person %s does not have a  public key"%person_hrn)
 221                     pkey = Keypair(create=True)
 222                 return (pubkey, pkey)
 223
 224
 225             try:
 226                 slab_key = person['pkey']
 227                 # new person
 228                 if not user_record:
 229                     (pubkey,pkey) = init_person_key (person, slab_key )
 230                     if pubkey is not None and pkey is not None :
 231                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 232                         if person['email']:
 233                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 234                             person_gid.set_email(person['email'])
 235                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 236                                                     pointer='-1',
 237                                                     authority=get_authority(person_hrn),
 238                                                     email=person['email'])
 239                         else:
 240                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 241                                                     pointer='-1',
 242                                                     authority=get_authority(person_hrn))
 243
 244                         if pubkey:
 245                             user_record.reg_keys = [RegKey (pubkey)]
 246                         else:
 247                             self.logger.warning("No key found for user %s"%user_record)
 248                         user_record.just_created()
 249                         dbsession.add (user_record)
 250                         dbsession.commit()
 251                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 252                         self.update_just_added_records_dict( user_record )
 253                 else:
 254                     # update the record ?
 255                     # if user's primary key has changed then we need to update the
 256                     # users gid by forcing an update here
 257                     sfa_keys = user_record.reg_keys
 258
 259                     new_key=False
 260                     if slab_key is not sfa_keys :
 261                         new_key = True
 262                     if new_key:
 263                         print>>sys.stderr,"SlabImporter: \t \t USER UPDATE person: %s" %(person['hrn'])
 264                         (pubkey,pkey) = init_person_key (person, slab_key)
 265                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 266                         if not pubkey:
 267                             user_record.reg_keys=[]
 268                         else:
 269                             user_record.reg_keys=[ RegKey (pubkey)]
 270                         self.logger.info("SlabImporter: updated person: %s" % user_record)
 271
 272                     if person['email']:
 273                         user_record.email = person['email']
 274
 275                 dbsession.commit()
 276
 277                 user_record.stale = False
 278             except:
 279                 self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 280
 281             try:
 282                 single_slice = slices_by_userid[user_record.record_id]
 283             except:
 284                 self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record)
 285
 286             if not slice_record :
 287                 try:
 288                     pkey = Keypair(create=True)
 289                     urn = hrn_to_urn(slice_hrn, 'slice')
 290                     slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 291                     slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 292                                                 pointer='-1',
 293                                                 authority=get_authority(slice_hrn))
 294
 295                     slice_record.just_created()
 296                     dbsession.add(slice_record)
 297                     dbsession.commit()
 298
 299                     #Serial id created after commit
 300                     #Get it
 301                     sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 302
 303                     #slab_slice = SenslabXP( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, record_id_user= user_record.record_id)
 304                     #print>>sys.stderr, "\r\n \r\n SLAB IMPORTER SLICE IMPORT NOTslice_record %s \r\n slab_slice %s" %(sl_rec,slab_slice)
 305                     #slab_dbsession.add(slab_slice)
 306                     #slab_dbsession.commit()
 307                     #self.logger.info("SlabImporter: imported slice: %s" % slice_record)
 308                     self.update_just_added_records_dict ( slice_record )
 309
 310                 except:
 311                     self.logger.log_exc("SlabImporter: failed to import slice")
 312
 313             #No slice update upon import in senslab
 314             else:
 315                 # xxx update the record ...
 316                 self.logger.warning ("Slice update not yet implemented")
 317                 pass
 318             # record current users affiliated with the slice
 319
 320
 321             slice_record.reg_researchers =  [user_record]
 322             dbsession.commit()
 323             slice_record.stale=False
 324
 325
 326
 327          ### remove stale records
 328         # special records must be preserved
 329         system_hrns = [slabdriver.hrn, slabdriver.slab_api.root_auth,  \
 330                                         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" \
 341                                             %(record.hrn,record.stale)
 342             try:
 343                 stale = record.stale
 344             except:
 345                 stale=True
 346                 self.logger.warning("stale not found with %s"%record)
 347             if stale:
 348                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 349                 #if record.type == 'user':
 350                     #rec = slab_dbsession.query(SenslabXP).filter_by(record_id_user = record.record_id).first()
 351                     #slab_dbsession.delete(rec)
 352                     #slab_dbsession.commit()
 353                 dbsession.delete(record)
 354                 dbsession.commit()
 355
 356
 357