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