sfa/managers/registry_manager_pl.py

   1 import types
   2 import time
   3 from sfa.util.prefixTree import prefixTree
   4 from sfa.util.record import SfaRecord
   5 from sfa.util.table import SfaTable
   6 from sfa.util.record import SfaRecord
   7 from sfa.trust.gid import GID
   8 from sfa.util.namespace import *
   9 from sfa.trust.credential import *
  10 from sfa.trust.certificate import *
  11 from sfa.util.faults import *
  12
  13
  14
  15 def get_credential(api, xrn, type, is_self=False):
  16     # convert xrn to hrn
  17     if type:
  18         hrn = urn_to_hrn(xrn)[0]
  19     else:
  20         hrn, type = urn_to_hrn(xrn)
  21
  22     # Is this a root or sub authority
  23     auth_hrn = api.auth.get_authority(hrn)
  24     if not auth_hrn or hrn == api.config.SFA_INTERFACE_HRN:
  25         auth_hrn = hrn
  26     # get record info
  27     auth_info = api.auth.get_auth_info(auth_hrn)
  28     table = SfaTable()
  29     records = table.findObjects({'type': type, 'hrn': hrn})
  30     if not records:
  31         raise RecordNotFound(hrn)
  32     record = records[0]
  33
  34     # verify_cancreate_credential requires that the member lists
  35     # (researchers, pis, etc) be filled in
  36     api.fill_record_info(record)
  37     if record['type']=='user':
  38        if not record['enabled']:
  39           raise AccountNotEnabled(": PlanetLab account %s is not enabled. Please contact your site PI" %(record['email']))
  40
  41     # get the callers gid
  42     # if this is a self cred the record's gid is the caller's gid
  43     if is_self:
  44         caller_hrn = hrn
  45         caller_gid = record.get_gid_object()
  46     else:
  47         caller_gid = api.auth.client_cred.get_gid_caller()
  48         caller_hrn = caller_gid.get_hrn()
  49
  50     object_hrn = record.get_gid_object().get_hrn()
  51     rights = api.auth.determine_user_rights(caller_hrn, record)
  52     # make sure caller has rights to this object
  53     if rights.is_empty():
  54         raise PermissionError(caller_hrn + " has no rights to " + record['name'])
  55
  56     object_gid = GID(string=record['gid'])
  57     new_cred = Credential(subject = object_gid.get_subject())
  58     new_cred.set_gid_caller(caller_gid)
  59     new_cred.set_gid_object(object_gid)
  60     new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename())
  61     #new_cred.set_pubkey(object_gid.get_pubkey())
  62     new_cred.set_privileges(rights)
  63     new_cred.get_privileges().delegate_all_privileges(True)
  64     auth_kind = "authority,ma,sa"
  65     # Parent not necessary, verify with certs
  66     #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
  67     new_cred.encode()
  68     new_cred.sign()
  69
  70     return new_cred.save_to_string(save_parents=True)
  71
  72
  73 # The GENI GetVersion call
  74 def GetVersion():
  75     version = {}
  76     version['geni_api'] = 1
  77     return version
  78
  79
  80
  81 # The GENI resolve call
  82 def Resolve(api, xrn, creds):
  83     records = resolve(api, xrn)
  84
  85     if len(records) == 0:
  86         return {}
  87
  88     record = records[0]
  89     if record.type == 'slice':
  90         return {'geni_urn': xrn, 'geni_creator': " ".join(record.PI)}
  91     if record.type == 'user':
  92         return {'geni_urn': xrn, 'geni_certificate': record.gid}
  93
  94
  95
  96 def resolve(api, xrns, type=None, origin_hrn=None, full=True):
  97
  98     # load all know registry names into a prefix tree and attempt to find
  99     # the longest matching prefix
 100     if not isinstance(xrns, types.ListType):
 101         xrns = [xrns]
 102     hrns = [urn_to_hrn(xrn)[0] for xrn in xrns]
 103     # create a dict whre key is an registry hrn and its value is a
 104     # hrns at that registry (determined by the known prefix tree).
 105     xrn_dict = {}
 106     registries = api.registries
 107     tree = prefixTree()
 108     registry_hrns = registries.keys()
 109     tree.load(registry_hrns)
 110     for xrn in xrns:
 111         registry_hrn = tree.best_match(urn_to_hrn(xrn)[0])
 112         if registry_hrn not in xrn_dict:
 113             xrn_dict[registry_hrn] = []
 114         xrn_dict[registry_hrn].append(xrn)
 115
 116     records = []
 117     for registry_hrn in xrn_dict:
 118         # skip the hrn without a registry hrn
 119         # XX should we let the user know the authority is unknown?
 120         if not registry_hrn:
 121             continue
 122
 123         # if the best match (longest matching hrn) is not the local registry,
 124         # forward the request
 125         xrns = xrn_dict[registry_hrn]
 126         if registry_hrn != api.hrn:
 127             credential = api.getCredential()
 128             peer_records = registries[registry_hrn].resolve(credential, xrns, origin_hrn)
 129             records.extend([SfaRecord(dict=record).as_dict() for record in peer_records])
 130
 131     # try resolving the remaining unfound records at the local registry
 132     remaining_hrns = set(hrns).difference([record['hrn'] for record in records])
 133     # convert set to list
 134     remaining_hrns = [hrn for hrn in remaining_hrns]
 135     table = SfaTable()
 136     local_records = table.findObjects({'hrn': remaining_hrns})
 137     if full:
 138         api.fill_record_info(local_records)
 139
 140     # convert local record objects to dicts
 141     records.extend([dict(record) for record in local_records])
 142     if not records:
 143         raise RecordNotFound(str(hrns))
 144
 145     if type:
 146         records = filter(lambda rec: rec['type'] in [type], records)
 147
 148     return records
 149
 150 def list(api, xrn, origin_hrn=None):
 151     hrn, type = urn_to_hrn(xrn)
 152     # load all know registry names into a prefix tree and attempt to find
 153     # the longest matching prefix
 154     records = []
 155     registries = api.registries
 156     registry_hrns = registries.keys()
 157     tree = prefixTree()
 158     tree.load(registry_hrns)
 159     registry_hrn = tree.best_match(hrn)
 160
 161     #if there was no match then this record belongs to an unknow registry
 162     if not registry_hrn:
 163         raise MissingAuthority(xrn)
 164
 165     # if the best match (longest matching hrn) is not the local registry,
 166     # forward the request
 167     records = []
 168     if registry_hrn != api.hrn:
 169         credential = api.getCredential()
 170         record_list = registries[registry_hrn].list(credential, xrn, origin_hrn)
 171         records = [SfaRecord(dict=record).as_dict() for record in record_list]
 172
 173     # if we still havnt found the record yet, try the local registry
 174     if not records:
 175         if not api.auth.hierarchy.auth_exists(hrn):
 176             raise MissingAuthority(hrn)
 177
 178         table = SfaTable()
 179         records = table.find({'authority': hrn})
 180
 181     return records
 182
 183
 184 def register(api, record):
 185
 186     hrn, type = record['hrn'], record['type']
 187     urn = hrn_to_urn(hrn,type)
 188     # validate the type
 189     if type not in ['authority', 'slice', 'node', 'user']:
 190         raise UnknownSfaType(type)
 191
 192     # check if record already exists
 193     table = SfaTable()
 194     existing_records = table.find({'type': type, 'hrn': hrn})
 195     if existing_records:
 196         raise ExistingRecord(hrn)
 197
 198     record = SfaRecord(dict = record)
 199     record['authority'] = get_authority(record['hrn'])
 200     type = record['type']
 201     hrn = record['hrn']
 202     api.auth.verify_object_permission(hrn)
 203     auth_info = api.auth.get_auth_info(record['authority'])
 204     pub_key = None
 205     # make sure record has a gid
 206     if 'gid' not in record:
 207         uuid = create_uuid()
 208         pkey = Keypair(create=True)
 209         if 'key' in record and record['key']:
 210             if isinstance(record['key'], types.ListType):
 211                 pub_key = record['key'][0]
 212             else:
 213                 pub_key = record['key']
 214             pkey = convert_public_key(pub_key)
 215
 216         gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 217         gid = gid_object.save_to_string(save_parents=True)
 218         record['gid'] = gid
 219         record.set_gid(gid)
 220
 221     if type in ["authority"]:
 222         # update the tree
 223         if not api.auth.hierarchy.auth_exists(hrn):
 224             api.auth.hierarchy.create_auth(hrn_to_urn(hrn,'authority'))
 225
 226         # get the GID from the newly created authority
 227         gid = auth_info.get_gid_object()
 228         record.set_gid(gid.save_to_string(save_parents=True))
 229         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 230         sites = api.plshell.GetSites(api.plauth, [pl_record['login_base']])
 231         if not sites:
 232             pointer = api.plshell.AddSite(api.plauth, pl_record)
 233         else:
 234             pointer = sites[0]['site_id']
 235
 236         record.set_pointer(pointer)
 237         record['pointer'] = pointer
 238
 239     elif (type == "slice"):
 240         acceptable_fields=['url', 'instantiation', 'name', 'description']
 241         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 242         for key in pl_record.keys():
 243             if key not in acceptable_fields:
 244                 pl_record.pop(key)
 245         slices = api.plshell.GetSlices(api.plauth, [pl_record['name']])
 246         if not slices:
 247              pointer = api.plshell.AddSlice(api.plauth, pl_record)
 248         else:
 249              pointer = slices[0]['slice_id']
 250         record.set_pointer(pointer)
 251         record['pointer'] = pointer
 252
 253     elif  (type == "user"):
 254         persons = api.plshell.GetPersons(api.plauth, [record['email']])
 255         if not persons:
 256             pointer = api.plshell.AddPerson(api.plauth, dict(record))
 257         else:
 258             pointer = persons[0]['person_id']
 259
 260         if 'enabled' in record and record['enabled']:
 261             api.plshell.UpdatePerson(api.plauth, pointer, {'enabled': record['enabled']})
 262         # add this persons to the site only if he is being added for the first
 263         # time by sfa and doesont already exist in plc
 264         if not persons or not persons[0]['site_ids']:
 265             login_base = get_leaf(record['authority'])
 266             api.plshell.AddPersonToSite(api.plauth, pointer, login_base)
 267
 268         # What roles should this user have?
 269         api.plshell.AddRoleToPerson(api.plauth, 'user', pointer)
 270         # Add the user's key
 271         if pub_key:
 272             api.plshell.AddPersonKey(api.plauth, pointer, {'key_type' : 'ssh', 'key' : pub_key})
 273
 274     elif (type == "node"):
 275         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 276         login_base = hrn_to_pl_login_base(record['authority'])
 277         nodes = api.plshell.GetNodes(api.plauth, [pl_record['hostname']])
 278         if not nodes:
 279             pointer = api.plshell.AddNode(api.plauth, login_base, pl_record)
 280         else:
 281             pointer = nodes[0]['node_id']
 282
 283     record['pointer'] = pointer
 284     record.set_pointer(pointer)
 285     record_id = table.insert(record)
 286     record['record_id'] = record_id
 287
 288     # update membership for researchers, pis, owners, operators
 289     api.update_membership(None, record)
 290
 291     return record.get_gid_object().save_to_string(save_parents=True)
 292
 293 def update(api, record_dict):
 294     new_record = SfaRecord(dict = record_dict)
 295     type = new_record['type']
 296     hrn = new_record['hrn']
 297     urn = hrn_to_urn(hrn,type)
 298     api.auth.verify_object_permission(hrn)
 299     table = SfaTable()
 300     # make sure the record exists
 301     records = table.findObjects({'type': type, 'hrn': hrn})
 302     if not records:
 303         raise RecordNotFound(hrn)
 304     record = records[0]
 305     record['last_updated'] = time.gmtime()
 306
 307     # Update_membership needs the membership lists in the existing record
 308     # filled in, so it can see if members were added or removed
 309     api.fill_record_info(record)
 310
 311     # Use the pointer from the existing record, not the one that the user
 312     # gave us. This prevents the user from inserting a forged pointer
 313     pointer = record['pointer']
 314     # update the PLC information that was specified with the record
 315
 316     if (type == "authority"):
 317         api.plshell.UpdateSite(api.plauth, pointer, new_record)
 318
 319     elif type == "slice":
 320         pl_record=api.sfa_fields_to_pl_fields(type, hrn, new_record)
 321         if 'name' in pl_record:
 322             pl_record.pop('name')
 323             api.plshell.UpdateSlice(api.plauth, pointer, pl_record)
 324
 325     elif type == "user":
 326         # SMBAKER: UpdatePerson only allows a limited set of fields to be
 327         #    updated. Ideally we should have a more generic way of doing
 328         #    this. I copied the field names from UpdatePerson.py...
 329         update_fields = {}
 330         all_fields = new_record
 331         for key in all_fields.keys():
 332             if key in ['first_name', 'last_name', 'title', 'email',
 333                        'password', 'phone', 'url', 'bio', 'accepted_aup',
 334                        'enabled']:
 335                 update_fields[key] = all_fields[key]
 336         api.plshell.UpdatePerson(api.plauth, pointer, update_fields)
 337
 338         if 'key' in new_record and new_record['key']:
 339             # must check this key against the previous one if it exists
 340             persons = api.plshell.GetPersons(api.plauth, [pointer], ['key_ids'])
 341             person = persons[0]
 342             keys = person['key_ids']
 343             keys = api.plshell.GetKeys(api.plauth, person['key_ids'])
 344             key_exists = False
 345             if isinstance(new_record['key'], types.ListType):
 346                 new_key = new_record['key'][0]
 347             else:
 348                 new_key = new_record['key']
 349
 350             # Delete all stale keys
 351             for key in keys:
 352                 if new_record['key'] != key['key']:
 353                     api.plshell.DeleteKey(api.plauth, key['key_id'])
 354                 else:
 355                     key_exists = True
 356             if not key_exists:
 357                 api.plshell.AddPersonKey(api.plauth, pointer, {'key_type': 'ssh', 'key': new_key})
 358
 359             # update the openssl key and gid
 360             pkey = convert_public_key(new_key)
 361             uuid = create_uuid()
 362             gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 363             gid = gid_object.save_to_string(save_parents=True)
 364             record['gid'] = gid
 365             record = SfaRecord(dict=record)
 366             table.update(record)
 367
 368     elif type == "node":
 369         api.plshell.UpdateNode(api.plauth, pointer, new_record)
 370
 371     else:
 372         raise UnknownSfaType(type)
 373
 374     # update membership for researchers, pis, owners, operators
 375     api.update_membership(record, new_record)
 376
 377     return 1
 378
 379 def remove(api, xrn, type, origin_hrn=None):
 380     # convert xrn to hrn
 381     if type:
 382         hrn = urn_to_hrn(xrn)[0]
 383     else:
 384         hrn, type = urn_to_hrn(xrn)
 385
 386     table = SfaTable()
 387     filter = {'hrn': hrn}
 388     if type not in ['all', '*']:
 389         filter['type'] = type
 390     records = table.find(filter)
 391     if not records:
 392         raise RecordNotFound(hrn)
 393     record = records[0]
 394     type = record['type']
 395
 396     credential = api.getCredential()
 397     registries = api.registries
 398
 399     # Try to remove the object from the PLCDB of federated agg.
 400     # This is attempted before removing the object from the local agg's PLCDB and sfa table
 401     if hrn.startswith(api.hrn) and type in ['user', 'slice', 'authority']:
 402         for registry in registries:
 403             if registry not in [api.hrn]:
 404                 try:
 405                     result=registries[registry].remove_peer_object(credential, record, origin_hrn)
 406                 except:
 407                     pass
 408     if type == "user":
 409         persons = api.plshell.GetPersons(api.plauth, record['pointer'])
 410         # only delete this person if he has site ids. if he doesnt, it probably means
 411         # he was just removed from a site, not actually deleted
 412         if persons and persons[0]['site_ids']:
 413             api.plshell.DeletePerson(api.plauth, record['pointer'])
 414     elif type == "slice":
 415         if api.plshell.GetSlices(api.plauth, record['pointer']):
 416             api.plshell.DeleteSlice(api.plauth, record['pointer'])
 417     elif type == "node":
 418         if api.plshell.GetNodes(api.plauth, record['pointer']):
 419             api.plshell.DeleteNode(api.plauth, record['pointer'])
 420     elif type == "authority":
 421         if api.plshell.GetSites(api.plauth, record['pointer']):
 422             api.plshell.DeleteSite(api.plauth, record['pointer'])
 423     else:
 424         raise UnknownSfaType(type)
 425
 426     table.remove(record)
 427
 428     return 1
 429
 430 def remove_peer_object(api, record, origin_hrn=None):
 431     pass
 432
 433 def register_peer_object(api, record, origin_hrn=None):
 434     pass