sfa/senslab/slabslices.py

   1 from sfa.util.xrn import get_authority, urn_to_hrn
   2 from sfa.util.sfalogging import logger
   3
   4
   5 MAXINT =  2L**31-1
   6
   7 class SlabSlices:
   8
   9     rspec_to_slice_tag = {'max_rate':'net_max_rate'}
  10
  11
  12     def __init__(self, driver):
  13         self.driver = driver
  14
  15
  16     def get_peer(self, xrn):
  17         hrn, hrn_type = urn_to_hrn(xrn)
  18         #Does this slice belong to a local site or a peer senslab site?
  19         peer = None
  20
  21         # get this slice's authority (site)
  22         slice_authority = get_authority(hrn)
  23         site_authority = slice_authority
  24         # get this site's authority (sfa root authority or sub authority)
  25         #site_authority = get_authority(slice_authority).lower()
  26         logger.debug("SLABSLICES \ get_peer slice_authority  %s \
  27                     site_authority %s hrn %s" %(slice_authority, \
  28                                         site_authority, hrn))
  29         #This slice belongs to the current site
  30         if site_authority == self.driver.root_auth :
  31             return None
  32         # check if we are already peered with this site_authority, if so
  33         #peers = self.driver.GetPeers({})
  34         peers = self.driver.GetPeers(peer_filter = slice_authority)
  35         for peer_record in peers:
  36
  37             if site_authority == peer_record.hrn:
  38                 peer = peer_record
  39         logger.debug(" SLABSLICES \tget_peer peer  %s " %(peer))
  40         return peer
  41
  42     def get_sfa_peer(self, xrn):
  43         hrn, hrn_type = urn_to_hrn(xrn)
  44
  45         # return the authority for this hrn or None if we are the authority
  46         sfa_peer = None
  47         slice_authority = get_authority(hrn)
  48         site_authority = get_authority(slice_authority)
  49
  50         if site_authority != self.driver.hrn:
  51             sfa_peer = site_authority
  52
  53         return sfa_peer
  54
  55
  56     def verify_slice_leases(self, sfa_slice, requested_jobs_dict, peer):
  57
  58         logger.debug("SLABSLICES verify_slice_leases sfa_slice %s \
  59                         "%( sfa_slice))
  60         #First get the list of current leases from OAR
  61         leases = self.driver.GetLeases({'name':sfa_slice['hrn']})
  62         logger.debug("SLABSLICES verify_slice_leases requested_jobs_dict %s \
  63                         leases %s "%(requested_jobs_dict, leases ))
  64
  65         current_nodes_reserved_by_start_time = {}
  66         requested_nodes_by_start_time = {}
  67         leases_by_start_time = {}
  68         reschedule_jobs_dict = {}
  69
  70
  71         #Create reduced dictionary with key start_time and value
  72         # the list of nodes
  73         #-for the leases already registered by OAR first
  74         # then for the new leases requested by the user
  75
  76         #Leases already scheduled/running in OAR
  77         for lease in leases :
  78             current_nodes_reserved_by_start_time[lease['t_from']] = \
  79                     lease['reserved_nodes']
  80             leases_by_start_time[lease['t_from']] = lease
  81
  82
  83         #Requested jobs
  84         for start_time in requested_jobs_dict:
  85             requested_nodes_by_start_time[int(start_time)]  = \
  86                     requested_jobs_dict[start_time]['hostname']
  87         #Check if there is any difference between the leases already
  88         #registered in OAR and the requested jobs.
  89         #Difference could be:
  90         #-Lease deleted in the requested jobs
  91         #-Added/removed nodes
  92         #-Newly added lease
  93
  94         logger.debug("SLABSLICES verify_slice_leases \
  95                         requested_nodes_by_start_time %s \
  96                         "%(requested_nodes_by_start_time ))
  97         #Find all deleted leases
  98         start_time_list = \
  99             list(set(leases_by_start_time.keys()).\
 100             difference(requested_nodes_by_start_time.keys()))
 101         deleted_leases = [leases_by_start_time[start_time]['lease_id'] \
 102                             for start_time in start_time_list]
 103
 104
 105
 106         #Find added or removed nodes in exisiting leases
 107         for start_time in requested_nodes_by_start_time:
 108             logger.debug("SLABSLICES verify_slice_leases  start_time %s \
 109                          "%( start_time))
 110             if start_time in current_nodes_reserved_by_start_time:
 111
 112                 if requested_nodes_by_start_time[start_time] == \
 113                     current_nodes_reserved_by_start_time[start_time]:
 114                     continue
 115
 116                 else:
 117                     update_node_set = \
 118                             set(requested_nodes_by_start_time[start_time])
 119                     added_nodes = \
 120                         update_node_set.difference(\
 121                         current_nodes_reserved_by_start_time[start_time])
 122                     shared_nodes = \
 123                         update_node_set.intersection(\
 124                         current_nodes_reserved_by_start_time[start_time])
 125                     old_nodes_set = \
 126                         set(\
 127                         current_nodes_reserved_by_start_time[start_time])
 128                     removed_nodes = \
 129                         old_nodes_set.difference(\
 130                         requested_nodes_by_start_time[start_time])
 131                     logger.debug("SLABSLICES verify_slice_leases \
 132                         shared_nodes %s  added_nodes %s removed_nodes %s"\
 133                         %(shared_nodes, added_nodes,removed_nodes ))
 134                     #If the lease is modified, delete it before
 135                     #creating it again.
 136                     #Add the deleted lease job id in the list
 137                     #WARNING :rescheduling does not work if there is already
 138                     # 2 running/scheduled jobs because deleting a job
 139                     #takes time SA 18/10/2012
 140                     if added_nodes or removed_nodes:
 141                         deleted_leases.append(\
 142                             leases_by_start_time[start_time]['lease_id'])
 143                         #Reschedule the job
 144                         if added_nodes or shared_nodes:
 145                             reschedule_jobs_dict[str(start_time)] = \
 146                                         requested_jobs_dict[str(start_time)]
 147
 148             else:
 149                     #New lease
 150
 151                     job = requested_jobs_dict[str(start_time)]
 152                     logger.debug("SLABSLICES \
 153                     NEWLEASE slice %s  job %s"\
 154                     %(sfa_slice, job))
 155                     self.driver.AddLeases(job['hostname'], \
 156                             sfa_slice, int(job['start_time']), \
 157                             int(job['duration']))
 158
 159         #Deleted leases are the ones with lease id not declared in the Rspec
 160         if deleted_leases:
 161             self.driver.DeleteLeases(deleted_leases, sfa_slice['hrn'])
 162             logger.debug("SLABSLICES \
 163                     verify_slice_leases slice %s deleted_leases %s"\
 164                     %(sfa_slice, deleted_leases))
 165
 166
 167         if reschedule_jobs_dict :
 168             for start_time in  reschedule_jobs_dict:
 169                 job = reschedule_jobs_dict[start_time]
 170                 self.driver.AddLeases(job['hostname'], \
 171                     sfa_slice, int(job['start_time']), \
 172                     int(job['duration']))
 173         return leases
 174
 175     def verify_slice_nodes(self, sfa_slice, requested_slivers, peer):
 176         current_slivers = []
 177         deleted_nodes = []
 178
 179         if 'node_ids' in sfa_slice:
 180             nodes = self.driver.GetNodes(sfa_slice['list_node_ids'], \
 181                 ['hostname'])
 182             current_slivers = [node['hostname'] for node in nodes]
 183
 184             # remove nodes not in rspec
 185             deleted_nodes = list(set(current_slivers).\
 186                                                 difference(requested_slivers))
 187             # add nodes from rspec
 188             #added_nodes = list(set(requested_slivers).\
 189                                         #difference(current_slivers))
 190
 191
 192             logger.debug("SLABSLICES \tverify_slice_nodes slice %s\
 193                                          \r\n \r\n deleted_nodes %s"\
 194                                         %(sfa_slice, deleted_nodes))
 195
 196             if deleted_nodes:
 197                 #Delete the entire experience
 198                 self.driver.DeleteSliceFromNodes(sfa_slice)
 199                 #self.driver.DeleteSliceFromNodes(sfa_slice['slice_hrn'], \
 200                                                                 #deleted_nodes)
 201             return nodes
 202
 203
 204
 205     def free_egre_key(self):
 206         used = set()
 207         for tag in self.driver.GetSliceTags({'tagname': 'egre_key'}):
 208             used.add(int(tag['value']))
 209
 210         for i in range(1, 256):
 211             if i not in used:
 212                 key = i
 213                 break
 214         else:
 215             raise KeyError("No more EGRE keys available")
 216
 217         return str(key)
 218
 219
 220
 221
 222
 223
 224     def handle_peer(self, site, sfa_slice, persons, peer):
 225         if peer:
 226             # bind site
 227             try:
 228                 if site:
 229                     self.driver.BindObjectToPeer('site', site['site_id'], \
 230                                         peer['shortname'], sfa_slice['site_id'])
 231             except Exception, error:
 232                 self.driver.DeleteSite(site['site_id'])
 233                 raise error
 234
 235             # bind slice
 236             try:
 237                 if sfa_slice:
 238                     self.driver.BindObjectToPeer('slice', slice['slice_id'], \
 239                                     peer['shortname'], sfa_slice['slice_id'])
 240             except Exception, error:
 241                 self.driver.DeleteSlice(sfa_slice['slice_id'])
 242                 raise error
 243
 244             # bind persons
 245             for person in persons:
 246                 try:
 247                     self.driver.BindObjectToPeer('person', \
 248                                     person['person_id'], peer['shortname'], \
 249                                     person['peer_person_id'])
 250
 251                     for (key, remote_key_id) in zip(person['keys'], \
 252                                                         person['key_ids']):
 253                         try:
 254                             self.driver.BindObjectToPeer( 'key', \
 255                                             key['key_id'], peer['shortname'], \
 256                                             remote_key_id)
 257                         except:
 258                             self.driver.DeleteKey(key['key_id'])
 259                             logger.log_exc("failed to bind key: %s \
 260                                             to peer: %s " % (key['key_id'], \
 261                                             peer['shortname']))
 262                 except Exception, error:
 263                     self.driver.DeletePerson(person['person_id'])
 264                     raise error
 265
 266         return sfa_slice
 267
 268     #def verify_site(self, slice_xrn, slice_record={}, peer=None, \
 269                                         #sfa_peer=None, options={}):
 270         #(slice_hrn, type) = urn_to_hrn(slice_xrn)
 271         #site_hrn = get_authority(slice_hrn)
 272         ## login base can't be longer than 20 characters
 273         ##slicename = hrn_to_pl_slicename(slice_hrn)
 274         #authority_name = slice_hrn.split('.')[0]
 275         #login_base = authority_name[:20]
 276         #logger.debug(" SLABSLICES.PY \tverify_site authority_name %s  \
 277                                         #login_base %s slice_hrn %s" \
 278                                         #%(authority_name,login_base,slice_hrn)
 279
 280         #sites = self.driver.GetSites(login_base)
 281         #if not sites:
 282             ## create new site record
 283             #site = {'name': 'geni.%s' % authority_name,
 284                     #'abbreviated_name': authority_name,
 285                     #'login_base': login_base,
 286                     #'max_slices': 100,
 287                     #'max_slivers': 1000,
 288                     #'enabled': True,
 289                     #'peer_site_id': None}
 290             #if peer:
 291                 #site['peer_site_id'] = slice_record.get('site_id', None)
 292             #site['site_id'] = self.driver.AddSite(site)
 293             ## exempt federated sites from monitor policies
 294             #self.driver.AddSiteTag(site['site_id'], 'exempt_site_until', \
 295                                                                 #"20200101")
 296
 297             ### is this still necessary?
 298             ### add record to the local registry
 299             ##if sfa_peer and slice_record:
 300                 ##peer_dict = {'type': 'authority', 'hrn': site_hrn, \
 301                              ##'peer_authority': sfa_peer, 'pointer': \
 302                                                         #site['site_id']}
 303                 ##self.registry.register_peer_object(self.credential, peer_dict)
 304         #else:
 305             #site =  sites[0]
 306             #if peer:
 307                 ## unbind from peer so we can modify if necessary.
 308                 ## Will bind back later
 309                 #self.driver.UnBindObjectFromPeer('site', site['site_id'], \
 310                                                             #peer['shortname'])
 311
 312         #return site
 313
 314     def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer):
 315
 316         #login_base = slice_hrn.split(".")[0]
 317         slicename = slice_hrn
 318         slices_list = self.driver.GetSlices(slice_filter = slicename, \
 319                                             slice_filter_type = 'slice_hrn')
 320         sfa_slice = None
 321         if slices_list:
 322             for sl in slices_list:
 323
 324                 logger.debug("SLABSLICE \tverify_slice slicename %s slices_list %s sl %s \
 325                                     slice_record %s"%(slicename, slices_list,sl, \
 326                                                             slice_record))
 327                 sfa_slice = sl
 328                 sfa_slice.update(slice_record)
 329                 #del slice['last_updated']
 330                 #del slice['date_created']
 331                 #if peer:
 332                     #slice['peer_slice_id'] = slice_record.get('slice_id', None)
 333                     ## unbind from peer so we can modify if necessary.
 334                     ## Will bind back later
 335                     #self.driver.UnBindObjectFromPeer('slice', \
 336                                                         #slice['slice_id'], \
 337                                                             #peer['shortname'])
 338                 #Update existing record (e.g. expires field)
 339                     #it with the latest info.
 340                 ##if slice_record and slice['expires'] != slice_record['expires']:
 341                     ##self.driver.UpdateSlice( slice['slice_id'], {'expires' : \
 342                                                         #slice_record['expires']})
 343         else:
 344             #Search for user in ldap based on email SA 14/11/12
 345             ldap_user = self.driver.ldap.LdapFindUser(slice_record['user'])
 346             logger.debug(" SLABSLICES \tverify_slice Oups \
 347                         slice_record %s peer %s sfa_peer %s ldap_user %s"\
 348                         %(slice_record, peer,sfa_peer ,ldap_user ))
 349             #User already registered in ldap, meaning user should be in SFA db
 350             #and hrn = sfa_auth+ uid
 351             if ldap_user :
 352                 hrn = self.driver.root_auth +'.'+ ldap_user['uid']
 353
 354                 user = self.driver.get_user(hrn)
 355
 356                 logger.debug(" SLABSLICES \tverify_slice hrn %s USER %s" %(hrn, user))
 357                 sfa_slice = {'slice_hrn': slicename,
 358                      #'url': slice_record.get('url', slice_hrn),
 359                      #'description': slice_record.get('description', slice_hrn)
 360                      'node_list' : [],
 361                      'authority' : slice_record['authority'],
 362                      'gid':slice_record['gid'],
 363                      'record_id_user' : user.record_id,
 364                      'slice_id' : slice_record['record_id'],
 365                      'reg-researchers':slice_record['reg-researchers'],
 366                      #'record_id_slice': slice_record['record_id'],
 367                      'peer_authority':str(peer.hrn)
 368
 369                      }
 370
 371                 if peer:
 372                     sfa_slice['slice_id'] = slice_record['record_id']
 373             # add the slice
 374             if sfa_slice:
 375                 self.driver.AddSlice(sfa_slice, user)
 376             #slice['slice_id'] = self.driver.AddSlice(slice)
 377             logger.debug("SLABSLICES \tverify_slice ADDSLICE OK")
 378             #slice['node_ids']=[]
 379             #slice['person_ids'] = []
 380             #if peer:
 381                 #sfa_slice['peer_slice_id'] = slice_record.get('slice_id', None)
 382             # mark this slice as an sfa peer record
 383             #if sfa_peer:
 384                 #peer_dict = {'type': 'slice', 'hrn': slice_hrn,
 385                              #'peer_authority': sfa_peer, 'pointer': \
 386                                                     #slice['slice_id']}
 387                 #self.registry.register_peer_object(self.credential, peer_dict)
 388
 389
 390
 391         return sfa_slice
 392
 393
 394     def verify_persons(self, slice_hrn, slice_record, users,  peer, sfa_peer, \
 395                                                                 options={}):
 396         """
 397         users is a record list. Records can either be local records
 398         or users records from known and trusted federated sites.
 399         If the user is from another site that senslab doesn't trust yet,
 400         then Resolve will raise an error before getting to create_sliver.
 401         """
 402         #TODO SA 21/08/12 verify_persons Needs review
 403
 404         logger.debug("SLABSLICES \tverify_persons \tslice_hrn  %s  \t slice_record %s\r\n users %s \t peer %s "%( slice_hrn, slice_record, users,  peer))
 405         users_by_id = {}
 406         users_by_hrn = {}
 407         #users_dict : dict whose keys can either be the user's hrn or its id.
 408         #Values contains only id and hrn
 409         users_dict = {}
 410
 411         #First create dicts by hrn and id for each user in the user record list:
 412         for info in users:
 413
 414             if 'slice_record' in info :
 415                 slice_rec = info['slice_record']
 416                 user = slice_rec['user']
 417
 418
 419             if 'hrn' in user:
 420
 421                 users_by_hrn[user['hrn']] = user
 422                 users_dict[user['hrn']] = user
 423
 424
 425         logger.debug( "SLABSLICE.PY \t verify_person  \
 426                         users_dict %s \r\n user_by_hrn %s \r\n \
 427                         \tusers_by_id %s " \
 428                         %(users_dict,users_by_hrn, users_by_id))
 429
 430         existing_user_ids = []
 431         existing_user_hrns = []
 432         existing_users = []
 433         # Check if user is in Senslab LDAP using its hrn.
 434         # Assuming Senslab is centralised :  one LDAP for all sites,
 435         # user_id unknown from LDAP
 436         # LDAP does not provide users id, therefore we rely on hrns containing
 437         # the login of the user.
 438         # If the hrn is not a senslab hrn, the user may not be in LDAP.
 439         if users_by_hrn:
 440             #Construct the list of filters (list of dicts) for GetPersons
 441             filter_user = []
 442             for hrn in users_by_hrn:
 443                 filter_user.append (users_by_hrn[hrn])
 444             logger.debug(" SLABSLICE.PY \tverify_person  filter_user %s " \
 445                                                     %(filter_user))
 446             #Check user's in LDAP with GetPersons
 447             #Needed because what if the user has been deleted in LDAP but
 448             #is still in SFA?
 449             existing_users = self.driver.GetPersons(filter_user)
 450
 451             #User's in senslab LDAP
 452             if existing_users:
 453                 for user in existing_users :
 454                     existing_user_hrns.append(users_dict[user['hrn']]['hrn'])
 455                     #existing_user_ids.\
 456                                     #append(users_dict[user['hrn']]['person_id'])
 457
 458             # User from another known trusted federated site. Check
 459             # if a senslab account matching the email has already been created.
 460             else:
 461                 req = 'mail='
 462                 if isinstance(users, list):
 463
 464                     req += users[0]['email']
 465                 else:
 466                     req += users['email']
 467
 468                 ldap_reslt = self.driver.ldap.LdapSearch(req)
 469                 if ldap_reslt:
 470                     logger.debug(" SLABSLICE.PY \tverify_person users \
 471                                 USER already in Senslab \t ldap_reslt %s \
 472                                 "%( ldap_reslt))
 473                     existing_users.append(ldap_reslt[1])
 474
 475                 else:
 476                     #User not existing in LDAP
 477                     #TODO SA 21/08/12 raise smthg to add user or add it auto ?
 478                     #new_record = {}
 479                     #new_record['pkey'] = users[0]['keys'][0]
 480                     #new_record['mail'] = users[0]['email']
 481
 482                     logger.debug(" SLABSLICE.PY \tverify_person users \
 483                                 not in ldap ...NEW ACCOUNT NEEDED %s \r\n \t \
 484                                 ldap_reslt %s "  %(users, ldap_reslt))
 485
 486         #requested_user_ids = users_by_id.keys()
 487         requested_user_hrns = users_by_hrn.keys()
 488         logger.debug("SLABSLICE.PY \tverify_person  \
 489                         user_by_hrn %s " %( users_by_hrn))
 490
 491
 492         #Check that the user of the slice in the slice record
 493         #matches the existing users
 494         try:
 495             if slice_record['PI'][0] in requested_user_hrns:
 496             #if slice_record['record_id_user'] in requested_user_ids and \
 497                                 #slice_record['PI'][0] in requested_user_hrns:
 498                 logger.debug(" SLABSLICE  \tverify_person  \slice_record['record_id_user'] %s" \
 499                         %(slice_record['record_id_user']))
 500
 501         except KeyError:
 502             pass
 503
 504
 505         # users to be added, removed or updated
 506         #One user in one senslab slice : there should be no need
 507         #to remove/ add any user from/to a slice.
 508         #However a user from SFA which is not registered in Senslab yet
 509         #should be added to the LDAP.
 510
 511         added_user_hrns = set(requested_user_hrns).\
 512                                             difference(set(existing_user_hrns))
 513
 514         #self.verify_keys(existing_slice_users, updated_users_list, \
 515                                                             #peer, append)
 516
 517         added_persons = []
 518         # add new users
 519         for added_user_hrn in added_user_hrns:
 520             added_user = users_dict[added_user_hrn]
 521             #hrn, type = urn_to_hrn(added_user['urn'])
 522
 523             person = {}
 524             person['peer_person_id'] =  None
 525             k_list  = ['first_name','last_name','person_id']
 526             for k in k_list:
 527                 if k in added_user:
 528                     person[k] = added_user[k]
 529
 530             person['pkey'] = added_user['keys'][0]
 531             person['mail'] = added_user['email']
 532             person['email'] = added_user['email']
 533             person['key_ids'] =  added_user.get('key_ids', [])
 534
 535             #person['person_id'] = self.driver.AddPerson(person)
 536             person['uid'] = self.driver.AddPerson(person)
 537
 538             #Update slice_Record with the id now known to LDAP
 539             slice_record['reg-researchers'] = [self.driver.root_auth + '.' + person['uid']]
 540             #if peer:
 541                 #person['peer_person_id'] = added_user['person_id']
 542             added_persons.append(person)
 543
 544             # enable the account
 545             self.driver.UpdatePerson(slice_record['reg-researchers'][0], added_user_hrn)
 546
 547             # add person to site
 548             #self.driver.AddPersonToSite(added_user_id, login_base)
 549
 550             #for key_string in added_user.get('keys', []):
 551                 #key = {'key':key_string, 'key_type':'ssh'}
 552                 #key['key_id'] = self.driver.AddPersonKey(person['person_id'], \
 553                                                 #                       key)
 554                 #person['keys'].append(key)
 555
 556             # add the registry record
 557             #if sfa_peer:
 558                 #peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': \
 559                                                 #sfa_peer, \
 560                                                 #'pointer': person['person_id']}
 561                 #self.registry.register_peer_object(self.credential, peer_dict)
 562         #for added_slice_user_hrn in \
 563                                 #added_slice_user_hrns.union(added_user_hrns):
 564             #self.driver.AddPersonToSlice(added_slice_user_hrn, \
 565                                                     #slice_record['name'])
 566         #for added_slice_user_id in \
 567                                     #added_slice_user_ids.union(added_user_ids):
 568             # add person to the slice
 569             #self.driver.AddPersonToSlice(added_slice_user_id, \
 570                                                 #slice_record['name'])
 571             # if this is a peer record then it
 572             # should already be bound to a peer.
 573             # no need to return worry about it getting bound later
 574
 575         return added_persons
 576
 577     #Unused
 578     def verify_keys(self, persons, users, peer, options={}):
 579         # existing keys
 580         key_ids = []
 581         for person in persons:
 582             key_ids.extend(person['key_ids'])
 583         keylist = self.driver.GetKeys(key_ids, ['key_id', 'key'])
 584         keydict = {}
 585         for key in keylist:
 586             keydict[key['key']] = key['key_id']
 587         existing_keys = keydict.keys()
 588         persondict = {}
 589         for person in persons:
 590             persondict[person['email']] = person
 591
 592         # add new keys
 593         requested_keys = []
 594         updated_persons = []
 595         for user in users:
 596             user_keys = user.get('keys', [])
 597             updated_persons.append(user)
 598             for key_string in user_keys:
 599                 requested_keys.append(key_string)
 600                 if key_string not in existing_keys:
 601                     key = {'key': key_string, 'key_type': 'ssh'}
 602                     try:
 603                         if peer:
 604                             person = persondict[user['email']]
 605                             self.driver.UnBindObjectFromPeer('person', \
 606                                         person['person_id'], peer['shortname'])
 607                         key['key_id'] = \
 608                                 self.driver.AddPersonKey(user['email'], key)
 609                         if peer:
 610                             key_index = user_keys.index(key['key'])
 611                             remote_key_id = user['key_ids'][key_index]
 612                             self.driver.BindObjectToPeer('key', \
 613                                             key['key_id'], peer['shortname'], \
 614                                             remote_key_id)
 615
 616                     finally:
 617                         if peer:
 618                             self.driver.BindObjectToPeer('person', \
 619                                     person['person_id'], peer['shortname'], \
 620                                     user['person_id'])
 621
 622         # remove old keys (only if we are not appending)
 623         append = options.get('append', True)
 624         if append == False:
 625             removed_keys = set(existing_keys).difference(requested_keys)
 626             for existing_key_id in keydict:
 627                 if keydict[existing_key_id] in removed_keys:
 628
 629                     if peer:
 630                         self.driver.UnBindObjectFromPeer('key', \
 631                                         existing_key_id, peer['shortname'])
 632                     self.driver.DeleteKey(existing_key_id)
 633
 634
 635     #def verify_slice_attributes(self, slice, requested_slice_attributes, \
 636                                             #append=False, admin=False):
 637         ## get list of attributes users ar able to manage
 638         #filter = {'category': '*slice*'}
 639         #if not admin:
 640             #filter['|roles'] = ['user']
 641         #slice_attributes = self.driver.GetTagTypes(filter)
 642         #valid_slice_attribute_names = [attribute['tagname'] \
 643                                             #for attribute in slice_attributes]
 644
 645         ## get sliver attributes
 646         #added_slice_attributes = []
 647         #removed_slice_attributes = []
 648         #ignored_slice_attribute_names = []
 649         #existing_slice_attributes = self.driver.GetSliceTags({'slice_id': \
 650                                                             #slice['slice_id']})
 651
 652         ## get attributes that should be removed
 653         #for slice_tag in existing_slice_attributes:
 654             #if slice_tag['tagname'] in ignored_slice_attribute_names:
 655                 ## If a slice already has a admin only role
 656                 ## it was probably given to them by an
 657                 ## admin, so we should ignore it.
 658                 #ignored_slice_attribute_names.append(slice_tag['tagname'])
 659             #else:
 660                 ## If an existing slice attribute was not
 661                 ## found in the request it should
 662                 ## be removed
 663                 #attribute_found=False
 664                 #for requested_attribute in requested_slice_attributes:
 665                     #if requested_attribute['name'] == slice_tag['tagname'] \
 666                         #and requested_attribute['value'] == slice_tag['value']:
 667                         #attribute_found=True
 668                         #break
 669
 670             #if not attribute_found and not append:
 671                 #removed_slice_attributes.append(slice_tag)
 672
 673         ## get attributes that should be added:
 674         #for requested_attribute in requested_slice_attributes:
 675             ## if the requested attribute wasn't found  we should add it
 676             #if requested_attribute['name'] in valid_slice_attribute_names:
 677                 #attribute_found = False
 678                 #for existing_attribute in existing_slice_attributes:
 679                     #if requested_attribute['name'] == \
 680                         #existing_attribute['tagname'] and \
 681                        #requested_attribute['value'] == \
 682                        #existing_attribute['value']:
 683                         #attribute_found=True
 684                         #break
 685                 #if not attribute_found:
 686                     #added_slice_attributes.append(requested_attribute)
 687
 688
 689         ## remove stale attributes
 690         #for attribute in removed_slice_attributes:
 691             #try:
 692                 #self.driver.DeleteSliceTag(attribute['slice_tag_id'])
 693             #except Exception, error:
 694                 #self.logger.warn('Failed to remove sliver attribute. name: \
 695                                 #%s, value: %s, node_id: %s\nCause:%s'\
 696                                 #% (name, value,  node_id, str(error)))
 697
 698         ## add requested_attributes
 699         #for attribute in added_slice_attributes:
 700             #try:
 701                 #self.driver.AddSliceTag(slice['name'], attribute['name'], \
 702                             #attribute['value'], attribute.get('node_id', None))
 703             #except Exception, error:
 704                 #self.logger.warn('Failed to add sliver attribute. name: %s, \
 705                                 #value: %s, node_id: %s\nCause:%s'\
 706                                 #% (name, value,  node_id, str(error)))
 707
 708