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         self.users_rec_by_email = \
  79             dict ( [ (record.email, record) for record in all_records if record.type == 'user' ] )
  80
  81         # create hash by (type,pointer)
  82         self.records_by_type_pointer = \
  83             dict ( [ ( (str(record.type),record.pointer) , record ) for record in all_records  if record.pointer != -1] )
  84
  85         # initialize record.stale to True by default, then mark stale=False on the ones that are in use
  86         for record in all_records:
  87             record.stale=True
  88
  89         nodes_listdict  = slabdriver.GetNodes()
  90         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  91         sites_listdict  = slabdriver.GetSites()
  92
  93         ldap_person_listdict = slabdriver.GetPersons()
  94         print>>sys.stderr,"\r\n SLABIMPORT \t ldap_person_listdict %s \r\n" %(ldap_person_listdict)
  95         slices_listdict = slabdriver.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.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             print>>sys.stderr,"SlabImporter: person: %s" %(person['hrn'])
 173             if 'ssh-rsa' not in person['pkey']:
 174                 #people with invalid ssh key (ssh-dss, empty, bullshit keys...)
 175                 #won't be imported
 176                 continue
 177             person_hrn = person['hrn']
 178             slice_hrn = self.slicename_to_hrn(person['hrn'])
 179
 180             # xxx suspicious again
 181             if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 182             person_urn = hrn_to_urn(person_hrn, 'user')
 183
 184             user_record = self.users_rec_by_email[person['email']]
 185             print>>sys.stderr,"SlabImporter: user_record " , user_record
 186             #user_record = self.find_record_by_type_hrn('user', person_hrn)
 187             slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 188
 189             # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 190             def init_person_key (person, slab_key):
 191                 pubkey = None
 192                 if  person['pkey']:
 193                     # randomly pick first key in set
 194                     pubkey = slab_key
 195
 196                     try:
 197                         pkey = convert_public_key(pubkey)
 198                     except TypeError:
 199                         #key not good. create another pkey
 200                         self.logger.warn('SlabImporter: \
 201                                             unable to convert public \
 202                                             key for %s' % person_hrn)
 203                         pkey = Keypair(create=True)
 204
 205                 else:
 206                     # the user has no keys. Creating a random keypair for the user's gid
 207                     self.logger.warn("SlabImporter: person %s does not have a  public key"%person_hrn)
 208                     pkey = Keypair(create=True)
 209                 return (pubkey, pkey)
 210
 211
 212             try:
 213                 slab_key = person['pkey']
 214                 # new person
 215                 if not user_record:
 216                     (pubkey,pkey) = init_person_key (person, slab_key )
 217                     if pubkey is not None and pkey is not None :
 218                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 219                         if person['email']:
 220                             print>>sys.stderr, "\r\n \r\n SLAB IMPORTER PERSON EMAIL OK email %s " %(person['email'])
 221                             person_gid.set_email(person['email'])
 222                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 223                                                     pointer='-1',
 224                                                     authority=get_authority(person_hrn),
 225                                                     email=person['email'])
 226                         else:
 227                             user_record = RegUser (hrn=person_hrn, gid=person_gid,
 228                                                     pointer='-1',
 229                                                     authority=get_authority(person_hrn))
 230
 231                         if pubkey:
 232                             user_record.reg_keys = [RegKey (pubkey)]
 233                         else:
 234                             self.logger.warning("No key found for user %s"%user_record)
 235                         user_record.just_created()
 236                         dbsession.add (user_record)
 237                         dbsession.commit()
 238                         self.logger.info("SlabImporter: imported person: %s" % user_record)
 239                         self.update_just_added_records_dict( user_record )
 240                 else:
 241                     # update the record ?
 242                     # if user's primary key has changed then we need to update the
 243                     # users gid by forcing an update here
 244                     sfa_keys = user_record.reg_keys
 245
 246                     new_key=False
 247                     if slab_key is not sfa_keys :
 248                         new_key = True
 249                     if new_key:
 250                         print>>sys.stderr,"SlabImporter: \t \t USER UPDATE person: %s" %(person['hrn'])
 251                         (pubkey,pkey) = init_person_key (person, slab_key)
 252                         person_gid = self.auth_hierarchy.create_gid(person_urn, create_uuid(), pkey)
 253                         if not pubkey:
 254                             user_record.reg_keys=[]
 255                         else:
 256                             user_record.reg_keys=[ RegKey (pubkey)]
 257                         self.logger.info("SlabImporter: updated person: %s" % user_record)
 258
 259                     if person['email']:
 260                         user_record.email = person['email']
 261
 262                 dbsession.commit()
 263
 264                 user_record.stale = False
 265             except:
 266                 self.logger.log_exc("SlabImporter: failed to import person  %s"%(person) )
 267
 268             try:
 269                 slice = slices_by_userid[user_record.record_id]
 270             except:
 271                 self.logger.warning ("SlabImporter: cannot locate slices_by_userid[user_record.record_id] %s - ignored"%user_record)
 272
 273             if not slice_record :
 274                 try:
 275                     pkey = Keypair(create=True)
 276                     urn = hrn_to_urn(slice_hrn, 'slice')
 277                     slice_gid = self.auth_hierarchy.create_gid(urn, create_uuid(), pkey)
 278                     slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 279                                                 pointer='-1',
 280                                                 authority=get_authority(slice_hrn))
 281
 282                     slice_record.just_created()
 283                     dbsession.add(slice_record)
 284                     dbsession.commit()
 285
 286                     #Serial id created after commit
 287                     #Get it
 288                     sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 289
 290                     #slab_slice = SenslabXP( slice_hrn = slice_hrn, record_id_slice=sl_rec[0].record_id, 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" % slice_record)
 295                     self.update_just_added_records_dict ( slice_record )
 296
 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
 308             slice_record.reg_researchers =  [user_record]
 309             dbsession.commit()
 310             slice_record.stale=False
 311
 312
 313
 314          ### remove stale records
 315         # special records must be preserved
 316         system_hrns = [slabdriver.hrn, slabdriver.root_auth,  slabdriver.hrn+ '.slicemanager']
 317         for record in all_records:
 318             if record.hrn in system_hrns:
 319                 record.stale=False
 320             if record.peer_authority:
 321                 record.stale=False
 322
 323
 324         for record in all_records:
 325             if record.type == 'user':
 326                 print>>sys.stderr,"SlabImporter: stale records: hrn %s %s" %(record.hrn,record.stale)
 327             try:
 328                 stale=record.stale
 329             except:
 330                 stale=True
 331                 self.logger.warning("stale not found with %s"%record)
 332             if stale:
 333                 self.logger.info("SlabImporter: deleting stale record: %s" % record)
 334                 #if record.type == 'user':
 335                     #rec = slab_dbsession.query(SenslabXP).filter_by(record_id_user = record.record_id).first()
 336                     #slab_dbsession.delete(rec)
 337                     #slab_dbsession.commit()
 338                 dbsession.delete(record)
 339                 dbsession.commit()
 340
 341
 342