sfa/planetlab/plslices.py

   1 from types import StringTypes
   2 from collections import defaultdict
   3
   4 from sfa.util.sfatime import utcparse, datetime_to_epoch
   5 from sfa.util.sfalogging import logger
   6 from sfa.util.xrn import Xrn, get_leaf, get_authority, urn_to_hrn
   7 from sfa.rspecs.rspec import RSpec
   8 from sfa.planetlab.vlink import VLink
   9 from sfa.planetlab.topology import Topology
  10 from sfa.planetlab.plxrn import PlXrn, hrn_to_pl_slicename
  11 from sfa.storage.model import SliverAllocation
  12 from sfa.storage.alchemy import dbsession
  13
  14 MAXINT =  2L**31-1
  15
  16 class PlSlices:
  17
  18     rspec_to_slice_tag = {'max_rate':'net_max_rate'}
  19
  20     def __init__(self, driver):
  21         self.driver = driver
  22
  23     def get_slivers(self, xrn, node=None):
  24         hrn, type = urn_to_hrn(xrn)
  25
  26         slice_name = hrn_to_pl_slicename(hrn)
  27         # XX Should we just call PLCAPI.GetSliceTicket(slice_name) instead
  28         # of doing all of this?
  29         #return self.driver.shell.GetSliceTicket(self.auth, slice_name)
  30
  31         # from PLCAPI.GetSlivers.get_slivers()
  32         slice_fields = ['slice_id', 'name', 'instantiation', 'expires', 'person_ids', 'slice_tag_ids']
  33         slices = self.driver.shell.GetSlices(slice_name, slice_fields)
  34         # Build up list of users and slice attributes
  35         person_ids = set()
  36         all_slice_tag_ids = set()
  37         for slice in slices:
  38             person_ids.update(slice['person_ids'])
  39             all_slice_tag_ids.update(slice['slice_tag_ids'])
  40         person_ids = list(person_ids)
  41         all_slice_tag_ids = list(all_slice_tag_ids)
  42         # Get user information
  43         all_persons_list = self.driver.shell.GetPersons({'person_id':person_ids,'enabled':True}, ['person_id', 'enabled', 'key_ids'])
  44         all_persons = {}
  45         for person in all_persons_list:
  46             all_persons[person['person_id']] = person
  47
  48         # Build up list of keys
  49         key_ids = set()
  50         for person in all_persons.values():
  51             key_ids.update(person['key_ids'])
  52         key_ids = list(key_ids)
  53         # Get user account keys
  54         all_keys_list = self.driver.shell.GetKeys(key_ids, ['key_id', 'key', 'key_type'])
  55         all_keys = {}
  56         for key in all_keys_list:
  57             all_keys[key['key_id']] = key
  58         # Get slice attributes
  59         all_slice_tags_list = self.driver.shell.GetSliceTags(all_slice_tag_ids)
  60         all_slice_tags = {}
  61         for slice_tag in all_slice_tags_list:
  62             all_slice_tags[slice_tag['slice_tag_id']] = slice_tag
  63
  64         slivers = []
  65         for slice in slices:
  66             keys = []
  67             for person_id in slice['person_ids']:
  68                 if person_id in all_persons:
  69                     person = all_persons[person_id]
  70                     if not person['enabled']:
  71                         continue
  72                     for key_id in person['key_ids']:
  73                         if key_id in all_keys:
  74                             key = all_keys[key_id]
  75                             keys += [{'key_type': key['key_type'],
  76                                     'key': key['key']}]
  77             attributes = []
  78             # All (per-node and global) attributes for this slice
  79             slice_tags = []
  80             for slice_tag_id in slice['slice_tag_ids']:
  81                 if slice_tag_id in all_slice_tags:
  82                     slice_tags.append(all_slice_tags[slice_tag_id])
  83             # Per-node sliver attributes take precedence over global
  84             # slice attributes, so set them first.
  85             # Then comes nodegroup slice attributes
  86             # Followed by global slice attributes
  87             sliver_attributes = []
  88
  89             if node is not None:
  90                 for sliver_attribute in filter(lambda a: a['node_id'] == node['node_id'], slice_tags):
  91                     sliver_attributes.append(sliver_attribute['tagname'])
  92                     attributes.append({'tagname': sliver_attribute['tagname'],
  93                                     'value': sliver_attribute['value']})
  94
  95             # set nodegroup slice attributes
  96             for slice_tag in filter(lambda a: a['nodegroup_id'] in node['nodegroup_ids'], slice_tags):
  97                 # Do not set any nodegroup slice attributes for
  98                 # which there is at least one sliver attribute
  99                 # already set.
 100                 if slice_tag not in slice_tags:
 101                     attributes.append({'tagname': slice_tag['tagname'],
 102                         'value': slice_tag['value']})
 103
 104             for slice_tag in filter(lambda a: a['node_id'] is None, slice_tags):
 105                 # Do not set any global slice attributes for
 106                 # which there is at least one sliver attribute
 107                 # already set.
 108                 if slice_tag['tagname'] not in sliver_attributes:
 109                     attributes.append({'tagname': slice_tag['tagname'],
 110                                    'value': slice_tag['value']})
 111
 112             # XXX Sanity check; though technically this should be a system invariant
 113             # checked with an assertion
 114             if slice['expires'] > MAXINT:  slice['expires']= MAXINT
 115
 116             slivers.append({
 117                 'hrn': hrn,
 118                 'name': slice['name'],
 119                 'slice_id': slice['slice_id'],
 120                 'instantiation': slice['instantiation'],
 121                 'expires': slice['expires'],
 122                 'keys': keys,
 123                 'attributes': attributes
 124             })
 125
 126         return slivers
 127
 128     def get_peer(self, xrn):
 129         hrn, type = urn_to_hrn(xrn)
 130         # Becaues of myplc federation,  we first need to determine if this
 131         # slice belongs to out local plc or a myplc peer. We will assume it
 132         # is a local site, unless we find out otherwise
 133         peer = None
 134
 135         # get this slice's authority (site)
 136         slice_authority = get_authority(hrn)
 137
 138         # get this site's authority (sfa root authority or sub authority)
 139         site_authority = get_authority(slice_authority).lower()
 140
 141         # check if we are already peered with this site_authority, if so
 142         peers = self.driver.shell.GetPeers({}, ['peer_id', 'peername', 'shortname', 'hrn_root'])
 143         for peer_record in peers:
 144             names = [name.lower() for name in peer_record.values() if isinstance(name, StringTypes)]
 145             if site_authority in names:
 146                 peer = peer_record
 147
 148         return peer
 149
 150     def get_sfa_peer(self, xrn):
 151         hrn, type = urn_to_hrn(xrn)
 152
 153         # return the authority for this hrn or None if we are the authority
 154         sfa_peer = None
 155         slice_authority = get_authority(hrn)
 156         site_authority = get_authority(slice_authority)
 157
 158         if site_authority != self.driver.hrn:
 159             sfa_peer = site_authority
 160
 161         return sfa_peer
 162
 163     def verify_slice_leases(self, slice, rspec_requested_leases, peer):
 164
 165         leases = self.driver.shell.GetLeases({'name':slice['name'], 'clip':int(time.time())}, ['lease_id','name', 'hostname', 't_from', 't_until'])
 166         grain = self.driver.shell.GetLeaseGranularity()
 167
 168         requested_leases = []
 169         for lease in rspec_requested_leases:
 170              requested_lease = {}
 171              slice_name = hrn_to_pl_slicename(lease['slice_id'])
 172              if slice_name != slice['name']:
 173                  continue
 174              elif Xrn(lease['component_id']).get_authority_urn().split(':')[0] != self.driver.hrn:
 175                  continue
 176
 177              hostname = xrn_to_hostname(lease['component_id'])
 178              # fill the requested node with nitos ids
 179              requested_lease['name'] = slice['name']
 180              requested_lease['hostname'] = hostname
 181              requested_lease['t_from'] = int(lease['start_time'])
 182              requested_lease['t_until'] = int(lease['duration']) * grain + int(lease['start_time'])
 183              requested_leases.append(requested_lease)
 184
 185
 186
 187         # prepare actual slice leases by lease_id
 188         leases_by_id = {}
 189         for lease in leases:
 190              leases_by_id[lease['lease_id']] = {'name': lease['name'], 'hostname': lease['hostname'], \
 191                                                 't_from': lease['t_from'], 't_until': lease['t_until']}
 192
 193         added_leases = []
 194         kept_leases_id = []
 195         deleted_leases_id = []
 196         for lease_id in leases_by_id:
 197              if leases_by_id[lease_id] not in requested_leases:
 198                  deleted_leases_id.append(lease_id)
 199              else:
 200                  kept_leases_id.append(lease_id)
 201                  requested_leases.remove(leases_by_id[lease_id])
 202         added_leases = requested_leases
 203
 204
 205         try:
 206             if peer:
 207                 self.driver.shell.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
 208             self.driver.shell.DeleteLeases(deleted_leases_id)
 209             for lease in added_leases:
 210                 self.driver.shell.AddLeases(lease['hostname'], slice['name'], lease['t_from'], lease['t_until'])
 211
 212         except:
 213             logger.log_exc('Failed to add/remove slice leases')
 214
 215         return leases
 216
 217
 218     def verify_slice_nodes(self, slice_urn, slice, rspec_nodes, peer):
 219
 220         slivers = {}
 221         for node in rspec_nodes:
 222             hostname = node.get('component_name')
 223             client_id = node.get('client_id')
 224             component_id = node.get('component_id').strip()
 225             if hostname:
 226                 hostname = hostname.strip()
 227             elif component_id:
 228                 hostname = xrn_to_hostname(component_id)
 229             if hostname:
 230                 slivers[hostname] = {'client_id': client_id, 'component_id': component_id}
 231
 232         nodes = self.driver.shell.GetNodes(slice['node_ids'], ['node_id', 'hostname', 'interface_ids'])
 233         current_slivers = [node['hostname'] for node in nodes]
 234
 235         requested_slivers = []
 236         tags = []
 237         for node in slivers:
 238             hostname = None
 239             if node.get('component_name'):
 240                 hostname = node.get('component_name').strip()
 241             elif node.get('component_id'):
 242                 hostname = xrn_to_hostname(node.get('component_id').strip())
 243             if node.get('client_id'):
 244                 tags.append({'slicename': slice['name'],
 245                              'tagname': 'client_id',
 246                              'value': node['client_id'],
 247                              'node': hostname})
 248             if hostname:
 249                 requested_slivers.append(hostname)
 250
 251         # remove nodes not in rspec
 252         deleted_nodes = list(set(current_slivers).difference(slivers.keys()))
 253
 254         # add nodes from rspec
 255         added_nodes = list(set(slivers.keys()).difference(current_slivers))
 256
 257         try:
 258             if peer:
 259                 self.driver.shell.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
 260             self.driver.shell.AddSliceToNodes(slice['name'], added_nodes)
 261             self.driver.shell.DeleteSliceFromNodes(slice['name'], deleted_nodes)
 262
 263         except:
 264             logger.log_exc('Failed to add/remove slice from nodes')
 265
 266         slices = self.driver.shell.GetSlices(slice['name'], ['node_ids'])
 267         resulting_nodes = self.driver.shell.GetNodes(slices[0]['node_ids'])
 268
 269         # update sliver allocations
 270         for node in resulting_nodes:
 271             client_id = slivers[node['hostname']]['client_id']
 272             component_id = slivers[node['hostname']]['component_id']
 273             sliver_hrn = '%s.%s-%s' % (self.driver.hrn, slice['slice_id'], node['node_id'])
 274             sliver_id = Xrn(sliver_hrn, type='sliver').urn
 275             record = SliverAllocation(sliver_id=sliver_id, client_id=client_id,
 276                                       component_id=component_id,
 277                                       slice_urn = slice_urn,
 278                                       allocation_state='geni_allocated')
 279             record.sync()
 280         return resulting_nodes
 281
 282     def free_egre_key(self):
 283         used = set()
 284         for tag in self.driver.shell.GetSliceTags({'tagname': 'egre_key'}):
 285                 used.add(int(tag['value']))
 286
 287         for i in range(1, 256):
 288             if i not in used:
 289                 key = i
 290                 break
 291         else:
 292             raise KeyError("No more EGRE keys available")
 293
 294         return str(key)
 295
 296     def verify_slice_links(self, slice, requested_links, nodes):
 297
 298         if not requested_links:
 299             return
 300
 301         # exit if links are not supported here
 302         topology = Topology()
 303         if not topology:
 304             return
 305
 306         # build dict of nodes
 307         nodes_dict = {}
 308         interface_ids = []
 309         for node in nodes:
 310             nodes_dict[node['node_id']] = node
 311             interface_ids.extend(node['interface_ids'])
 312         # build dict of interfaces
 313         interfaces = self.driver.shell.GetInterfaces(interface_ids)
 314         interfaces_dict = {}
 315         for interface in interfaces:
 316             interfaces_dict[interface['interface_id']] = interface
 317
 318         slice_tags = []
 319
 320         # set egre key
 321         slice_tags.append({'name': 'egre_key', 'value': self.free_egre_key()})
 322
 323         # set netns
 324         slice_tags.append({'name': 'netns', 'value': '1'})
 325
 326         # set cap_net_admin
 327         # need to update the attribute string?
 328         slice_tags.append({'name': 'capabilities', 'value': 'CAP_NET_ADMIN'})
 329
 330         for link in requested_links:
 331             # get the ip address of the first node in the link
 332             ifname1 = Xrn(link['interface1']['component_id']).get_leaf()
 333             ifname_parts = ifname1.split(':')
 334             node_raw = ifname_parts[0]
 335             device = None
 336             if len(ifname_parts) > 1:
 337                 device = ifname_parts[1]
 338             node_id = int(node_raw.replace('node', ''))
 339             node = nodes_dict[node_id]
 340             if1 = interfaces_dict[node['interface_ids'][0]]
 341             ipaddr = if1['ip']
 342             topo_rspec = VLink.get_topo_rspec(link, ipaddr)
 343             # set topo_rspec tag
 344             slice_tags.append({'name': 'topo_rspec', 'value': str([topo_rspec]), 'node_id': node_id})
 345             # set vini_topo tag
 346             slice_tags.append({'name': 'vini_topo', 'value': 'manual', 'node_id': node_id})
 347             #self.driver.shell.AddSliceTag(slice['name'], 'topo_rspec', str([topo_rspec]), node_id)
 348
 349         self.verify_slice_attributes(slice, slice_tags, {'append': True}, admin=True)
 350
 351
 352
 353     def handle_peer(self, site, slice, persons, peer):
 354         if peer:
 355             # bind site
 356             try:
 357                 if site:
 358                     self.driver.shell.BindObjectToPeer('site', site['site_id'], peer['shortname'], slice['site_id'])
 359             except Exception,e:
 360                 self.driver.shell.DeleteSite(site['site_id'])
 361                 raise e
 362
 363             # bind slice
 364             try:
 365                 if slice:
 366                     self.driver.shell.BindObjectToPeer('slice', slice['slice_id'], peer['shortname'], slice['slice_id'])
 367             except Exception,e:
 368                 self.driver.shell.DeleteSlice(slice['slice_id'])
 369                 raise e
 370
 371             # bind persons
 372             for person in persons:
 373                 try:
 374                     self.driver.shell.BindObjectToPeer('person',
 375                                                      person['person_id'], peer['shortname'], person['peer_person_id'])
 376
 377                     for (key, remote_key_id) in zip(person['keys'], person['key_ids']):
 378                         try:
 379                             self.driver.shell.BindObjectToPeer( 'key', key['key_id'], peer['shortname'], remote_key_id)
 380                         except:
 381                             self.driver.shell.DeleteKey(key['key_id'])
 382                             logger("failed to bind key: %s to peer: %s " % (key['key_id'], peer['shortname']))
 383                 except Exception,e:
 384                     self.driver.shell.DeletePerson(person['person_id'])
 385                     raise e
 386
 387         return slice
 388
 389     def verify_site(self, slice_xrn, slice_record={}, peer=None, sfa_peer=None, options={}):
 390         (slice_hrn, type) = urn_to_hrn(slice_xrn)
 391         site_hrn = get_authority(slice_hrn)
 392         # login base can't be longer than 20 characters
 393         slicename = hrn_to_pl_slicename(slice_hrn)
 394         authority_name = slicename.split('_')[0]
 395         login_base = authority_name[:20]
 396         sites = self.driver.shell.GetSites(login_base)
 397         if not sites:
 398             # create new site record
 399             site = {'name': 'geni.%s' % authority_name,
 400                     'abbreviated_name': authority_name,
 401                     'login_base': login_base,
 402                     'max_slices': 100,
 403                     'max_slivers': 1000,
 404                     'enabled': True,
 405                     'peer_site_id': None}
 406             if peer:
 407                 site['peer_site_id'] = slice_record.get('site_id', None)
 408             site['site_id'] = self.driver.shell.AddSite(site)
 409             # exempt federated sites from monitor policies
 410             self.driver.shell.AddSiteTag(site['site_id'], 'exempt_site_until', "20200101")
 411
 412 #            # is this still necessary?
 413 #            # add record to the local registry
 414 #            if sfa_peer and slice_record:
 415 #                peer_dict = {'type': 'authority', 'hrn': site_hrn, \
 416 #                             'peer_authority': sfa_peer, 'pointer': site['site_id']}
 417 #                self.registry.register_peer_object(self.credential, peer_dict)
 418         else:
 419             site =  sites[0]
 420             if peer:
 421                 # unbind from peer so we can modify if necessary. Will bind back later
 422                 self.driver.shell.UnBindObjectFromPeer('site', site['site_id'], peer['shortname'])
 423
 424         return site
 425
 426     def verify_slice(self, slice_hrn, slice_record, peer, sfa_peer, expiration, options={}):
 427         slicename = hrn_to_pl_slicename(slice_hrn)
 428         parts = slicename.split("_")
 429         login_base = parts[0]
 430         slices = self.driver.shell.GetSlices([slicename])
 431         expires = int(datetime_to_epoch(utcparse(expiration)))
 432         if not slices:
 433             slice = {'name': slicename,
 434                      'url': 'No Url',
 435                      'description': 'No Description'}
 436             # add the slice
 437             slice['slice_id'] = self.driver.shell.AddSlice(slice)
 438             slice['node_ids'] = []
 439             slice['person_ids'] = []
 440             if peer and slice_record:
 441                 slice['peer_slice_id'] = slice_record.get('slice_id', None)
 442             # set the expiration
 443             self.driver.shell.UpdateSlice(slice['slice_id'], {'expires': expires})
 444         else:
 445             slice = slices[0]
 446             if peer and slice_record:
 447                 slice['peer_slice_id'] = slice_record.get('slice_id', None)
 448                 # unbind from peer so we can modify if necessary. Will bind back later
 449                 self.driver.shell.UnBindObjectFromPeer('slice', slice['slice_id'], peer['shortname'])
 450
 451                 #Update expiration if necessary
 452             if slice['expires'] != expires:
 453                 self.driver.shell.UpdateSlice( slice['slice_id'], {'expires' : expires})
 454
 455         return slice
 456
 457     #def get_existing_persons(self, users):
 458     def verify_persons(self, slice_hrn, slice_record, users, peer, sfa_peer, options={}):
 459         users_by_email = {}
 460         users_by_site = defaultdict(list)
 461         users_dict = {}
 462         for user in users:
 463             user['urn'] = user['urn'].lower()
 464             hrn, type = urn_to_hrn(user['urn'])
 465             username = get_leaf(hrn)
 466             login_base = PlXrn(xrn=user['urn']).pl_login_base()
 467             user['username'] = username
 468             user['site'] = login_base
 469
 470             if 'email' in user:
 471                 user['email'] = user['email'].lower()
 472                 users_by_email[user['email']] = user
 473                 users_dict[user['email']] = user
 474             else:
 475                 users_by_site[user['site']].append(user)
 476
 477         # start building a list of existing users
 478         existing_user_ids = []
 479         existing_user_ids_filter = []
 480         if users_by_email:
 481             existing_user_ids_filter.extend(users_by_email.keys())
 482         if users_by_site:
 483             for login_base in users_by_site:
 484                 users = users_by_site[login_base]
 485                 for user in users:
 486                     existing_user_ids_filter.append(user['username']+'@geni.net')
 487         if existing_user_ids_filter:
 488             # get existing users by email
 489             existing_users = self.driver.shell.GetPersons({'email': existing_user_ids_filter},
 490                                                         ['person_id', 'key_ids', 'email'])
 491             existing_user_ids.extend([user['email'] for user in existing_users])
 492
 493         if users_by_site:
 494             # get a list of user sites (based on requeste user urns
 495             site_list = self.driver.shell.GetSites(users_by_site.keys(), \
 496                 ['site_id', 'login_base', 'person_ids'])
 497             # get all existing users at these sites
 498             sites = {}
 499             site_user_ids = []
 500             for site in site_list:
 501                 sites[site['site_id']] = site
 502                 site_user_ids.extend(site['person_ids'])
 503
 504             existing_site_persons_list = self.driver.shell.GetPersons(site_user_ids,
 505                                                                     ['person_id', 'key_ids', 'email', 'site_ids'])
 506
 507             # all requested users are either existing users or new (added) users
 508             for login_base in users_by_site:
 509                 requested_site_users = users_by_site[login_base]
 510                 for requested_user in requested_site_users:
 511                     user_found = False
 512                     for existing_user in existing_site_persons_list:
 513                         for site_id in existing_user['site_ids']:
 514                             if site_id in sites:
 515                                 site = sites[site_id]
 516                                 if login_base == site['login_base'] and \
 517                                    existing_user['email'].startswith(requested_user['username']+'@'):
 518                                     existing_user_ids.append(existing_user['email'])
 519                                     requested_user['email'] = existing_user['email']
 520                                     users_dict[existing_user['email']] = requested_user
 521                                     user_found = True
 522                                     break
 523                         if user_found:
 524                             break
 525
 526                     if user_found == False:
 527                         fake_email = requested_user['username'] + '@geni.net'
 528                         requested_user['email'] = fake_email
 529                         users_dict[fake_email] = requested_user
 530
 531         # requested slice users
 532         requested_user_ids = users_dict.keys()
 533         # existing slice users
 534         existing_slice_users_filter = {'person_id': slice_record.get('person_ids', [])}
 535         existing_slice_users = self.driver.shell.GetPersons(existing_slice_users_filter,
 536                                                           ['person_id', 'key_ids', 'email'])
 537         existing_slice_user_ids = [user['email'] for user in existing_slice_users]
 538
 539         # users to be added, removed or updated
 540         added_user_ids = set(requested_user_ids).difference(existing_user_ids)
 541         added_slice_user_ids = set(requested_user_ids).difference(existing_slice_user_ids)
 542         removed_user_ids = set(existing_slice_user_ids).difference(requested_user_ids)
 543         updated_user_ids = set(existing_slice_user_ids).intersection(requested_user_ids)
 544
 545         # Remove stale users (only if we are not appending).
 546         # Append by default.
 547         append = options.get('append', True)
 548         if append == False:
 549             for removed_user_id in removed_user_ids:
 550                 self.driver.shell.DeletePersonFromSlice(removed_user_id, slice_record['name'])
 551         # update_existing users
 552         updated_users_list = [user for user in users_dict.values() if user['email'] in \
 553           updated_user_ids]
 554         self.verify_keys(existing_slice_users, updated_users_list, peer, options)
 555
 556         added_persons = []
 557         # add new users
 558         for added_user_id in added_user_ids:
 559             added_user = users_dict[added_user_id]
 560             hrn, type = urn_to_hrn(added_user['urn'])
 561             person = {
 562                 'first_name': added_user.get('first_name', hrn),
 563                 'last_name': added_user.get('last_name', hrn),
 564                 'email': added_user_id,
 565                 'peer_person_id': None,
 566                 'keys': [],
 567                 'key_ids': added_user.get('key_ids', []),
 568             }
 569             person['person_id'] = self.driver.shell.AddPerson(person)
 570             if peer:
 571                 person['peer_person_id'] = added_user['person_id']
 572             added_persons.append(person)
 573
 574             # enable the account
 575             self.driver.shell.UpdatePerson(person['person_id'], {'enabled': True})
 576
 577             # add person to site
 578             self.driver.shell.AddPersonToSite(added_user_id, added_user['site'])
 579
 580             for key_string in added_user.get('keys', []):
 581                 key = {'key':key_string, 'key_type':'ssh'}
 582                 key['key_id'] = self.driver.shell.AddPersonKey(person['person_id'], key)
 583                 person['keys'].append(key)
 584
 585             # add the registry record
 586 #            if sfa_peer:
 587 #                peer_dict = {'type': 'user', 'hrn': hrn, 'peer_authority': sfa_peer, \
 588 #                    'pointer': person['person_id']}
 589 #                self.registry.register_peer_object(self.credential, peer_dict)
 590
 591         for added_slice_user_id in added_slice_user_ids.union(added_user_ids):
 592             # add person to the slice
 593             self.driver.shell.AddPersonToSlice(added_slice_user_id, slice_record['name'])
 594             # if this is a peer record then it should already be bound to a peer.
 595             # no need to return worry about it getting bound later
 596
 597         return added_persons
 598
 599
 600     def verify_keys(self, persons, users, peer, options={}):
 601         # existing keys
 602         key_ids = []
 603         for person in persons:
 604             key_ids.extend(person['key_ids'])
 605         keylist = self.driver.shell.GetKeys(key_ids, ['key_id', 'key'])
 606         keydict = {}
 607         for key in keylist:
 608             keydict[key['key']] = key['key_id']
 609         existing_keys = keydict.keys()
 610         persondict = {}
 611         for person in persons:
 612             persondict[person['email']] = person
 613
 614         # add new keys
 615         requested_keys = []
 616         updated_persons = []
 617         for user in users:
 618             user_keys = user.get('keys', [])
 619             updated_persons.append(user)
 620             for key_string in user_keys:
 621                 requested_keys.append(key_string)
 622                 if key_string not in existing_keys:
 623                     key = {'key': key_string, 'key_type': 'ssh'}
 624                     try:
 625                         if peer:
 626                             person = persondict[user['email']]
 627                             self.driver.shell.UnBindObjectFromPeer('person', person['person_id'], peer['shortname'])
 628                         key['key_id'] = self.driver.shell.AddPersonKey(user['email'], key)
 629                         if peer:
 630                             key_index = user_keys.index(key['key'])
 631                             remote_key_id = user['key_ids'][key_index]
 632                             self.driver.shell.BindObjectToPeer('key', key['key_id'], peer['shortname'], remote_key_id)
 633
 634                     finally:
 635                         if peer:
 636                             self.driver.shell.BindObjectToPeer('person', person['person_id'], peer['shortname'], user['person_id'])
 637
 638         # remove old keys (only if we are not appending)
 639         append = options.get('append', True)
 640         if append == False:
 641             removed_keys = set(existing_keys).difference(requested_keys)
 642             for existing_key_id in keydict:
 643                 if keydict[existing_key_id] in removed_keys:
 644                     try:
 645                         if peer:
 646                             self.driver.shell.UnBindObjectFromPeer('key', existing_key_id, peer['shortname'])
 647                         self.driver.shell.DeleteKey(existing_key_id)
 648                     except:
 649                         pass
 650
 651     def verify_slice_attributes(self, slice, requested_slice_attributes, options={}, admin=False):
 652         append = options.get('append', True)
 653         # get list of attributes users ar able to manage
 654         filter = {'category': '*slice*'}
 655         if not admin:
 656             filter['|roles'] = ['user']
 657         slice_attributes = self.driver.shell.GetTagTypes(filter)
 658         valid_slice_attribute_names = [attribute['tagname'] for attribute in slice_attributes]
 659
 660         # get sliver attributes
 661         added_slice_attributes = []
 662         removed_slice_attributes = []
 663         ignored_slice_attribute_names = []
 664         existing_slice_attributes = self.driver.shell.GetSliceTags({'slice_id': slice['slice_id']})
 665
 666         # get attributes that should be removed
 667         for slice_tag in existing_slice_attributes:
 668             if slice_tag['tagname'] in ignored_slice_attribute_names:
 669                 # If a slice already has a admin only role it was probably given to them by an
 670                 # admin, so we should ignore it.
 671                 ignored_slice_attribute_names.append(slice_tag['tagname'])
 672             else:
 673                 # If an existing slice attribute was not found in the request it should
 674                 # be removed
 675                 attribute_found=False
 676                 for requested_attribute in requested_slice_attributes:
 677                     if requested_attribute['name'] == slice_tag['tagname'] and \
 678                        requested_attribute['value'] == slice_tag['value']:
 679                         attribute_found=True
 680                         break
 681
 682             if not attribute_found and not append:
 683                 removed_slice_attributes.append(slice_tag)
 684
 685         # get attributes that should be added:
 686         for requested_attribute in requested_slice_attributes:
 687             # if the requested attribute wasn't found  we should add it
 688             if requested_attribute['name'] in valid_slice_attribute_names:
 689                 attribute_found = False
 690                 for existing_attribute in existing_slice_attributes:
 691                     if requested_attribute['name'] == existing_attribute['tagname'] and \
 692                        requested_attribute['value'] == existing_attribute['value']:
 693                         attribute_found=True
 694                         break
 695                 if not attribute_found:
 696                     added_slice_attributes.append(requested_attribute)
 697
 698
 699         # remove stale attributes
 700         for attribute in removed_slice_attributes:
 701             try:
 702                 self.driver.shell.DeleteSliceTag(attribute['slice_tag_id'])
 703             except Exception, e:
 704                 logger.warn('Failed to remove sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\
 705                                 % (slice['name'], attribute['value'],  attribute.get('node_id'), str(e)))
 706
 707         # add requested_attributes
 708         for attribute in added_slice_attributes:
 709             try:
 710                 self.driver.shell.AddSliceTag(slice['name'], attribute['name'], attribute['value'], attribute.get('node_id', None))
 711             except Exception, e:
 712                 logger.warn('Failed to add sliver attribute. name: %s, value: %s, node_id: %s\nCause:%s'\
 713                                 % (slice['name'], attribute['value'],  attribute.get('node_id'), str(e)))
 714