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
  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     @staticmethod
  31     def hostname_to_hrn_escaped(root_auth, hostname):
  32         return '.'.join( [root_auth, Xrn.escape(hostname)] )
  33
  34
  35     @staticmethod
  36     def slicename_to_hrn(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, record_type, hrn):
  44         return self.records_by_type_hrn.get ( (record_type, hrn), None)
  45
  46     def locate_by_type_pointer (self, record_type, pointer):
  47         ret = self.records_by_type_pointer.get ( (record_type, pointer), None)
  48         return ret
  49
  50     def update_just_added_records_dict (self, record):
  51         rec_tuple = (record.type, record.hrn)
  52         if rec_tuple in self.records_by_type_hrn:
  53             self.logger.warning ("SlabImporter.update_just_added_records_dict:\
  54                         duplicate (%s,%s)"%rec_tuple)
  55             return
  56         self.records_by_type_hrn [ rec_tuple ] = record
  57
  58     def import_sites(self) :
  59
  60     def run (self, options):
  61         config = Config()
  62
  63         slabdriver = SlabDriver(config)
  64
  65         #Create special slice table for senslab
  66
  67         if not slabdriver.db.exists('slab_xp'):
  68             slabdriver.db.createtable()
  69             self.logger.info ("SlabImporter.run:  slab_xp table created ")
  70
  71         #retrieve all existing SFA objects
  72         all_records = dbsession.query(RegRecord).all()
  73
  74         # initialize record.stale to True by default,
  75         # then mark stale=False on the ones that are in use
  76         for record in all_records:
  77             record.stale = True
  78         #create hash by (type,hrn)
  79         #used  to know if a given record is already known to SFA
  80
  81         self.records_by_type_hrn = \
  82             dict([( (record.type,record.hrn), record) \
  83                                         for record in all_records])
  84
  85         self.users_rec_by_email = \
  86             dict([ (record.email, record) \
  87                 for record in all_records if record.type == 'user'])
  88
  89         # create hash by (type,pointer)
  90         self.records_by_type_pointer = \
  91             dict([ ( (str(record.type), record.pointer) , record) \
  92                 for record in all_records  if record.pointer != -1])
  93
  94
  95         nodes_listdict  = slabdriver.slab_api.GetNodes()
  96         nodes_by_id = dict([(node['node_id'],node) for node in nodes_listdict])
  97         sites_listdict  = slabdriver.slab_api.GetSites()
  98
  99         ldap_person_listdict = slabdriver.slab_api.GetPersons()
 100         print>>sys.stderr,"\r\n SLABIMPORT \t ldap_person_listdict %s \r\n" \
 101                 %(ldap_person_listdict)
 102         slices_listdict = slabdriver.slab_api.GetSlices()
 103         #try:
 104             #slices_by_userid = \
 105                 #dict([(one_slice['reg_researchers']['record_id'], one_slice ) \
 106                 #for one_slice in slices_listdict ])
 107         #except TypeError:
 108             #self.logger.log_exc("SlabImporter: failed to create list \
 109                         #of slices by user id.")
 110             #pass
 111
 112         for site in sites_listdict:
 113             site_hrn = _get_site_hrn(site)
 114             site_record = self.find_record_by_type_hrn ('authority', site_hrn)
 115             if not site_record:
 116                 try:
 117                     urn = hrn_to_urn(site_hrn, 'authority')
 118                     if not self.auth_hierarchy.auth_exists(urn):
 119                         self.auth_hierarchy.create_auth(urn)
 120
 121                     auth_info = self.auth_hierarchy.get_auth_info(urn)
 122                     site_record = RegAuthority(hrn=site_hrn, \
 123                                             gid=auth_info.get_gid_object(),
 124                                             pointer='-1',
 125                                             authority=get_authority(site_hrn))
 126                     site_record.just_created()
 127                     dbsession.add(site_record)
 128                     dbsession.commit()
 129                     self.logger.info("SlabImporter: imported authority (site) \
 130                          %s" % site_record)
 131                     self.update_just_added_records_dict(site_record)
 132                 except SQLAlchemyError:
 133                     # if the site import fails then there is no point in
 134                     # trying to import the
 135                     # site's child records (node, slices, persons), so skip them.
 136                     self.logger.log_exc("SlabImporter: failed to import site. \
 137                         Skipping child records")
 138                     continue
 139             else:
 140                 # xxx update the record ...
 141                 pass
 142             site_record.stale = False
 143
 144          # import node records in site
 145             for node_id in site['node_ids']:
 146                 try:
 147                     node = nodes_by_id[node_id]
 148                 except KeyError:
 149                     self.logger.warning ("SlabImporter: cannot find node_id %s \
 150                             - ignored" %(node_id))
 151                     continue
 152                 escaped_hrn =  \
 153                 self.hostname_to_hrn_escaped(slabdriver.slab_api.root_auth, \
 154                 node['hostname'])
 155                 print>>sys.stderr, "\r\n \r\n SLABIMPORTER node %s " %(node)
 156                 hrn =  node['hrn']
 157
 158
 159                 # xxx this sounds suspicious
 160                 if len(hrn) > 64: hrn = hrn[:64]
 161                 node_record = self.find_record_by_type_hrn( 'node', hrn )
 162                 if not node_record:
 163                     pkey = Keypair(create=True)
 164                     urn = hrn_to_urn(escaped_hrn, 'node')
 165                     node_gid = \
 166                         self.auth_hierarchy.create_gid(urn, \
 167                         create_uuid(), pkey)
 168
 169                     def slab_get_authority(hrn):
 170                         return hrn.split(".")[0]
 171
 172                     node_record = RegNode(hrn=hrn, gid=node_gid,
 173                                         pointer = '-1',
 174                                         authority=slab_get_authority(hrn))
 175                     try:
 176
 177                         node_record.just_created()
 178                         dbsession.add(node_record)
 179                         dbsession.commit()
 180                         self.logger.info("SlabImporter: imported node: %s" \
 181                                     % node_record)
 182                         self.update_just_added_records_dict(node_record)
 183                     except SQLAlchemyError:
 184                         self.logger.log_exc("SlabImporter: \
 185                                         failed to import node")
 186                 else:
 187                     # xxx update the record ...
 188                     pass
 189                 node_record.stale=False
 190
 191
 192         # import persons
 193         for person in ldap_person_listdict :
 194
 195             self.logger.info("SlabImporter: person :" %(person))
 196             if 'ssh-rsa' not in person['pkey']:
 197                 #people with invalid ssh key (ssh-dss, empty, bullshit keys...)
 198                 #won't be imported
 199                 continue
 200             person_hrn = person['hrn']
 201             slice_hrn = self.slicename_to_hrn(person['hrn'])
 202
 203             # xxx suspicious again
 204             if len(person_hrn) > 64: person_hrn = person_hrn[:64]
 205             person_urn = hrn_to_urn(person_hrn, 'user')
 206
 207
 208             self.logger.info("SlabImporter: users_rec_by_email %s " \
 209                                             %(self.users_rec_by_email))
 210
 211             #Check if user using person['email'] form LDAP is already registered
 212             #in SFA. One email = one person. In this case, do not create another
 213             #record for this person
 214             #person_hrn returned by GetPerson based on senslab root auth + uid ldap
 215             user_record = self.find_record_by_type_hrn('user', person_hrn)
 216
 217             if not user_record and  person['email'] in self.users_rec_by_email:
 218                 user_record = self.users_rec_by_email[person['email']]
 219                 person_hrn = user_record.hrn
 220                 person_urn = hrn_to_urn(person_hrn, 'user')
 221
 222
 223             slice_record = self.find_record_by_type_hrn ('slice', slice_hrn)
 224
 225             # return a tuple pubkey (a plc key object) and pkey (a Keypair object)
 226             def init_person_key (person, slab_key):
 227                 pubkey = None
 228                 if  person['pkey']:
 229                     # randomly pick first key in set
 230                     pubkey = slab_key
 231
 232                     try:
 233                         pkey = convert_public_key(pubkey)
 234                     except TypeError:
 235                         #key not good. create another pkey
 236                         self.logger.warn('SlabImporter: \
 237                                             unable to convert public \
 238                                             key for %s' % person_hrn)
 239                         pkey = Keypair(create=True)
 240
 241                 else:
 242                     # the user has no keys.
 243                     #Creating a random keypair for the user's gid
 244                     self.logger.warn("SlabImporter: person %s does not have a  \
 245                                 public key" %(person_hrn))
 246                     pkey = Keypair(create=True)
 247                 return (pubkey, pkey)
 248
 249
 250
 251             slab_key = person['pkey']
 252             # new person
 253             if not user_record:
 254                 (pubkey,pkey) = init_person_key (person, slab_key )
 255                 if pubkey is not None and pkey is not None :
 256                     person_gid = \
 257                     self.auth_hierarchy.create_gid(person_urn, \
 258                     create_uuid(), pkey)
 259                     if person['email']:
 260                         print>>sys.stderr, "\r\n \r\n SLAB IMPORTER \
 261                             PERSON EMAIL OK email %s " %(person['email'])
 262                         person_gid.set_email(person['email'])
 263                         user_record = RegUser(hrn=person_hrn, \
 264                                                 gid=person_gid,
 265                                                 pointer='-1',
 266                                                 authority=get_authority(person_hrn),
 267                                                 email=person['email'])
 268                     else:
 269                         user_record = RegUser(hrn=person_hrn, \
 270                                                 gid=person_gid,
 271                                                 pointer='-1',
 272                                                 authority=get_authority(person_hrn))
 273
 274                     if pubkey:
 275                         user_record.reg_keys = [RegKey(pubkey)]
 276                     else:
 277                         self.logger.warning("No key found for user %s" \
 278                         %(user_record))
 279
 280                         try:
 281                             user_record.just_created()
 282                             dbsession.add (user_record)
 283                             dbsession.commit()
 284                             self.logger.info("SlabImporter: imported person: %s"\
 285                             %(user_record))
 286                             self.update_just_added_records_dict( user_record )
 287
 288                         except SQLAlchemyError:
 289                             self.logger.log_exc("SlabImporter: \
 290                                 failed to import person  %s"%(person))
 291             else:
 292                 # update the record ?
 293                 # if user's primary key has changed then we need to update
 294                 # the users gid by forcing an update here
 295                 sfa_keys = user_record.reg_keys
 296
 297                 new_key=False
 298                 if slab_key is not sfa_keys :
 299                     new_key = True
 300                 if new_key:
 301                     print>>sys.stderr,"SlabImporter: \t \t USER UPDATE \
 302                         person: %s" %(person['hrn'])
 303                     (pubkey,pkey) = init_person_key (person, slab_key)
 304                     person_gid = \
 305                         self.auth_hierarchy.create_gid(person_urn, \
 306                         create_uuid(), pkey)
 307                     if not pubkey:
 308                         user_record.reg_keys = []
 309                     else:
 310                         user_record.reg_keys = [RegKey(pubkey)]
 311                     self.logger.info("SlabImporter: updated person: %s" \
 312                     % (user_record))
 313
 314                 if person['email']:
 315                     user_record.email = person['email']
 316
 317             try:
 318                 dbsession.commit()
 319                 user_record.stale = False
 320             except SQLAlchemyError:
 321                 self.logger.log_exc("SlabImporter: \
 322                 failed to update person  %s"%(person))
 323
 324
 325             #try:
 326                 #single_slice = slices_by_userid[user_record.record_id]
 327             #except KeyError:
 328                 #self.logger.warning ("SlabImporter: \
 329                 #cannot locate slices_by_userid[user_record.record_id] %s - \
 330                 #ignored" %(user_record))
 331
 332             if not slice_record :
 333
 334                 pkey = Keypair(create=True)
 335                 urn = hrn_to_urn(slice_hrn, 'slice')
 336                 slice_gid = \
 337                     self.auth_hierarchy.create_gid(urn, \
 338                     create_uuid(), pkey)
 339                 slice_record = RegSlice (hrn=slice_hrn, gid=slice_gid,
 340                                             pointer='-1',
 341                                             authority=get_authority(slice_hrn))
 342                 try:
 343                     slice_record.just_created()
 344                     dbsession.add(slice_record)
 345                     dbsession.commit()
 346
 347                     #Serial id created after commit
 348                     #Get it
 349                     sl_rec = dbsession.query(RegSlice).filter(RegSlice.hrn.match(slice_hrn)).all()
 350
 351
 352                     self.update_just_added_records_dict ( slice_record )
 353
 354                 except SQLAlchemyError:
 355                     self.logger.log_exc("SlabImporter: failed to import slice")
 356
 357             #No slice update upon import in senslab
 358             else:
 359                 # xxx update the record ...
 360                 self.logger.warning ("Slice update not yet implemented")
 361                 pass
 362             # record current users affiliated with the slice
 363
 364
 365             slice_record.reg_researchers =  [user_record]
 366             try:
 367                 dbsession.commit()
 368                 slice_record.stale = False
 369             except SQLAlchemyError:
 370                 self.logger.log_exc("SlabImporter: failed to update slice")
 371
 372
 373
 374          ### remove stale records
 375         # special records must be preserved
 376         system_hrns = [slabdriver.hrn, slabdriver.slab_api.root_auth,  \
 377                                         slabdriver.hrn+ '.slicemanager']
 378         for record in all_records:
 379             if record.hrn in system_hrns:
 380                 record.stale = False
 381             if record.peer_authority:
 382                 record.stale = False
 383
 384
 385         for record in all_records:
 386             if record.type == 'user':
 387                 print>>sys.stderr,"SlabImporter: stale records: hrn %s %s" \
 388                                             %(record.hrn,record.stale)
 389             try:
 390                 stale = record.stale
 391             except :
 392                 stale = True
 393                 self.logger.warning("stale not found with %s"%record)
 394             if stale:
 395                 self.logger.info("SlabImporter: deleting stale record: %s" \
 396                 %(record))
 397
 398                 try:
 399                     dbsession.delete(record)
 400                     dbsession.commit()
 401                 except SQLAlchemyError:
 402                     self.logger.log_exc("SlabImporter: failed to delete stale \
 403                     record %s" %(record) )
 404
 405