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 def get_version(api):
  14     version = {}
  15     version['geni_api'] = 1
  16     version['sfa'] = 1
  17     return version
  18
  19 def get_credential(api, xrn, type, is_self=False):
  20     # convert xrn to hrn
  21     if type:
  22         hrn = urn_to_hrn(xrn)[0]
  23     else:
  24         hrn, type = urn_to_hrn(xrn)
  25
  26     # Is this a root or sub authority
  27     auth_hrn = api.auth.get_authority(hrn)
  28     if not auth_hrn or hrn == api.config.SFA_INTERFACE_HRN:
  29         auth_hrn = hrn
  30     # get record info
  31     auth_info = api.auth.get_auth_info(auth_hrn)
  32     table = SfaTable()
  33     records = table.findObjects({'type': type, 'hrn': hrn})
  34     if not records:
  35         raise RecordNotFound(hrn)
  36     record = records[0]
  37
  38     # verify_cancreate_credential requires that the member lists
  39     # (researchers, pis, etc) be filled in
  40     api.fill_record_info(record)
  41     if record['type']=='user':
  42        if not record['enabled']:
  43           raise AccountNotEnabled(": PlanetLab account %s is not enabled. Please contact your site PI" %(record['email']))
  44
  45     # get the callers gid
  46     # if this is a self cred the record's gid is the caller's gid
  47     if is_self:
  48         caller_hrn = hrn
  49         caller_gid = record.get_gid_object()
  50     else:
  51         caller_gid = api.auth.client_cred.get_gid_caller()
  52         caller_hrn = caller_gid.get_hrn()
  53
  54     object_hrn = record.get_gid_object().get_hrn()
  55     rights = api.auth.determine_user_rights(caller_hrn, record)
  56     # make sure caller has rights to this object
  57     if rights.is_empty():
  58         raise PermissionError(caller_hrn + " has no rights to " + record['name'])
  59
  60     object_gid = GID(string=record['gid'])
  61     new_cred = Credential(subject = object_gid.get_subject())
  62     new_cred.set_gid_caller(caller_gid)
  63     new_cred.set_gid_object(object_gid)
  64     new_cred.set_issuer_keys(auth_info.get_privkey_filename(), auth_info.get_gid_filename())
  65     #new_cred.set_pubkey(object_gid.get_pubkey())
  66     new_cred.set_privileges(rights)
  67     new_cred.get_privileges().delegate_all_privileges(True)
  68     auth_kind = "authority,ma,sa"
  69     # Parent not necessary, verify with certs
  70     #new_cred.set_parent(api.auth.hierarchy.get_auth_cred(auth_hrn, kind=auth_kind))
  71     new_cred.encode()
  72     new_cred.sign()
  73
  74     return new_cred.save_to_string(save_parents=True)
  75
  76
  77 # The GENI GetVersion call
  78 def GetVersion():
  79     version = {}
  80     version['geni_api'] = 1
  81     return version
  82
  83
  84
  85 # The GENI resolve call
  86 def Resolve(api, xrn, creds):
  87     records = resolve(api, xrn)
  88
  89     if len(records) == 0:
  90         return {}
  91
  92     record = records[0]
  93     if record.type == 'slice':
  94         return {'geni_urn': xrn, 'geni_creator': " ".join(record.PI)}
  95     if record.type == 'user':
  96         return {'geni_urn': xrn, 'geni_certificate': record.gid}
  97
  98
  99
 100 def resolve(api, xrns, type=None, origin_hrn=None, full=True):
 101
 102     # load all know registry names into a prefix tree and attempt to find
 103     # the longest matching prefix
 104     if not isinstance(xrns, types.ListType):
 105         xrns = [xrns]
 106     hrns = [urn_to_hrn(xrn)[0] for xrn in xrns]
 107     # create a dict whre key is an registry hrn and its value is a
 108     # hrns at that registry (determined by the known prefix tree).
 109     xrn_dict = {}
 110     registries = api.registries
 111     tree = prefixTree()
 112     registry_hrns = registries.keys()
 113     tree.load(registry_hrns)
 114     for xrn in xrns:
 115         registry_hrn = tree.best_match(urn_to_hrn(xrn)[0])
 116         if registry_hrn not in xrn_dict:
 117             xrn_dict[registry_hrn] = []
 118         xrn_dict[registry_hrn].append(xrn)
 119
 120     records = []
 121     for registry_hrn in xrn_dict:
 122         # skip the hrn without a registry hrn
 123         # XX should we let the user know the authority is unknown?
 124         if not registry_hrn:
 125             continue
 126
 127         # if the best match (longest matching hrn) is not the local registry,
 128         # forward the request
 129         xrns = xrn_dict[registry_hrn]
 130         if registry_hrn != api.hrn:
 131             credential = api.getCredential()
 132             peer_records = registries[registry_hrn].resolve(credential, xrns, origin_hrn)
 133             records.extend([SfaRecord(dict=record).as_dict() for record in peer_records])
 134
 135     # try resolving the remaining unfound records at the local registry
 136     remaining_hrns = set(hrns).difference([record['hrn'] for record in records])
 137     # convert set to list
 138     remaining_hrns = [hrn for hrn in remaining_hrns]
 139     table = SfaTable()
 140     local_records = table.findObjects({'hrn': remaining_hrns})
 141     if full:
 142         api.fill_record_info(local_records)
 143
 144     # convert local record objects to dicts
 145     records.extend([dict(record) for record in local_records])
 146     if not records:
 147         raise RecordNotFound(str(hrns))
 148
 149     if type:
 150         records = filter(lambda rec: rec['type'] in [type], records)
 151
 152     return records
 153
 154 def list(api, xrn, origin_hrn=None):
 155     hrn, type = urn_to_hrn(xrn)
 156     # load all know registry names into a prefix tree and attempt to find
 157     # the longest matching prefix
 158     records = []
 159     registries = api.registries
 160     registry_hrns = registries.keys()
 161     tree = prefixTree()
 162     tree.load(registry_hrns)
 163     registry_hrn = tree.best_match(hrn)
 164
 165     #if there was no match then this record belongs to an unknow registry
 166     if not registry_hrn:
 167         raise MissingAuthority(xrn)
 168
 169     # if the best match (longest matching hrn) is not the local registry,
 170     # forward the request
 171     records = []
 172     if registry_hrn != api.hrn:
 173         credential = api.getCredential()
 174         record_list = registries[registry_hrn].list(credential, xrn, origin_hrn)
 175         records = [SfaRecord(dict=record).as_dict() for record in record_list]
 176
 177     # if we still havnt found the record yet, try the local registry
 178     if not records:
 179         if not api.auth.hierarchy.auth_exists(hrn):
 180             raise MissingAuthority(hrn)
 181
 182         table = SfaTable()
 183         records = table.find({'authority': hrn})
 184
 185     return records
 186
 187
 188 def register(api, record):
 189
 190     hrn, type = record['hrn'], record['type']
 191     urn = hrn_to_urn(hrn,type)
 192     # validate the type
 193     if type not in ['authority', 'slice', 'node', 'user']:
 194         raise UnknownSfaType(type)
 195
 196     # check if record already exists
 197     table = SfaTable()
 198     existing_records = table.find({'type': type, 'hrn': hrn})
 199     if existing_records:
 200         raise ExistingRecord(hrn)
 201
 202     record = SfaRecord(dict = record)
 203     record['authority'] = get_authority(record['hrn'])
 204     type = record['type']
 205     hrn = record['hrn']
 206     api.auth.verify_object_permission(hrn)
 207     auth_info = api.auth.get_auth_info(record['authority'])
 208     pub_key = None
 209     # make sure record has a gid
 210     if 'gid' not in record:
 211         uuid = create_uuid()
 212         pkey = Keypair(create=True)
 213         if 'key' in record and record['key']:
 214             if isinstance(record['key'], types.ListType):
 215                 pub_key = record['key'][0]
 216             else:
 217                 pub_key = record['key']
 218             pkey = convert_public_key(pub_key)
 219
 220         gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 221         gid = gid_object.save_to_string(save_parents=True)
 222         record['gid'] = gid
 223         record.set_gid(gid)
 224
 225     if type in ["authority"]:
 226         # update the tree
 227         if not api.auth.hierarchy.auth_exists(hrn):
 228             api.auth.hierarchy.create_auth(hrn_to_urn(hrn,'authority'))
 229
 230         # get the GID from the newly created authority
 231         gid = auth_info.get_gid_object()
 232         record.set_gid(gid.save_to_string(save_parents=True))
 233         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 234         sites = api.plshell.GetSites(api.plauth, [pl_record['login_base']])
 235         if not sites:
 236             pointer = api.plshell.AddSite(api.plauth, pl_record)
 237         else:
 238             pointer = sites[0]['site_id']
 239
 240         record.set_pointer(pointer)
 241         record['pointer'] = pointer
 242
 243     elif (type == "slice"):
 244         acceptable_fields=['url', 'instantiation', 'name', 'description']
 245         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 246         for key in pl_record.keys():
 247             if key not in acceptable_fields:
 248                 pl_record.pop(key)
 249         slices = api.plshell.GetSlices(api.plauth, [pl_record['name']])
 250         if not slices:
 251              pointer = api.plshell.AddSlice(api.plauth, pl_record)
 252         else:
 253              pointer = slices[0]['slice_id']
 254         record.set_pointer(pointer)
 255         record['pointer'] = pointer
 256
 257     elif  (type == "user"):
 258         persons = api.plshell.GetPersons(api.plauth, [record['email']])
 259         if not persons:
 260             pointer = api.plshell.AddPerson(api.plauth, dict(record))
 261         else:
 262             pointer = persons[0]['person_id']
 263
 264         if 'enabled' in record and record['enabled']:
 265             api.plshell.UpdatePerson(api.plauth, pointer, {'enabled': record['enabled']})
 266         # add this persons to the site only if he is being added for the first
 267         # time by sfa and doesont already exist in plc
 268         if not persons or not persons[0]['site_ids']:
 269             login_base = get_leaf(record['authority'])
 270             api.plshell.AddPersonToSite(api.plauth, pointer, login_base)
 271
 272         # What roles should this user have?
 273         api.plshell.AddRoleToPerson(api.plauth, 'user', pointer)
 274         # Add the user's key
 275         if pub_key:
 276             api.plshell.AddPersonKey(api.plauth, pointer, {'key_type' : 'ssh', 'key' : pub_key})
 277
 278     elif (type == "node"):
 279         pl_record = api.sfa_fields_to_pl_fields(type, hrn, record)
 280         login_base = hrn_to_pl_login_base(record['authority'])
 281         nodes = api.plshell.GetNodes(api.plauth, [pl_record['hostname']])
 282         if not nodes:
 283             pointer = api.plshell.AddNode(api.plauth, login_base, pl_record)
 284         else:
 285             pointer = nodes[0]['node_id']
 286
 287     record['pointer'] = pointer
 288     record.set_pointer(pointer)
 289     record_id = table.insert(record)
 290     record['record_id'] = record_id
 291
 292     # update membership for researchers, pis, owners, operators
 293     api.update_membership(None, record)
 294
 295     return record.get_gid_object().save_to_string(save_parents=True)
 296
 297 def update(api, record_dict):
 298     new_record = SfaRecord(dict = record_dict)
 299     type = new_record['type']
 300     hrn = new_record['hrn']
 301     urn = hrn_to_urn(hrn,type)
 302     api.auth.verify_object_permission(hrn)
 303     table = SfaTable()
 304     # make sure the record exists
 305     records = table.findObjects({'type': type, 'hrn': hrn})
 306     if not records:
 307         raise RecordNotFound(hrn)
 308     record = records[0]
 309     record['last_updated'] = time.gmtime()
 310
 311     # Update_membership needs the membership lists in the existing record
 312     # filled in, so it can see if members were added or removed
 313     api.fill_record_info(record)
 314
 315     # Use the pointer from the existing record, not the one that the user
 316     # gave us. This prevents the user from inserting a forged pointer
 317     pointer = record['pointer']
 318     # update the PLC information that was specified with the record
 319
 320     if (type == "authority"):
 321         api.plshell.UpdateSite(api.plauth, pointer, new_record)
 322
 323     elif type == "slice":
 324         pl_record=api.sfa_fields_to_pl_fields(type, hrn, new_record)
 325         if 'name' in pl_record:
 326             pl_record.pop('name')
 327             api.plshell.UpdateSlice(api.plauth, pointer, pl_record)
 328
 329     elif type == "user":
 330         # SMBAKER: UpdatePerson only allows a limited set of fields to be
 331         #    updated. Ideally we should have a more generic way of doing
 332         #    this. I copied the field names from UpdatePerson.py...
 333         update_fields = {}
 334         all_fields = new_record
 335         for key in all_fields.keys():
 336             if key in ['first_name', 'last_name', 'title', 'email',
 337                        'password', 'phone', 'url', 'bio', 'accepted_aup',
 338                        'enabled']:
 339                 update_fields[key] = all_fields[key]
 340         api.plshell.UpdatePerson(api.plauth, pointer, update_fields)
 341
 342         if 'key' in new_record and new_record['key']:
 343             # must check this key against the previous one if it exists
 344             persons = api.plshell.GetPersons(api.plauth, [pointer], ['key_ids'])
 345             person = persons[0]
 346             keys = person['key_ids']
 347             keys = api.plshell.GetKeys(api.plauth, person['key_ids'])
 348             key_exists = False
 349             if isinstance(new_record['key'], types.ListType):
 350                 new_key = new_record['key'][0]
 351             else:
 352                 new_key = new_record['key']
 353
 354             # Delete all stale keys
 355             for key in keys:
 356                 if new_record['key'] != key['key']:
 357                     api.plshell.DeleteKey(api.plauth, key['key_id'])
 358                 else:
 359                     key_exists = True
 360             if not key_exists:
 361                 api.plshell.AddPersonKey(api.plauth, pointer, {'key_type': 'ssh', 'key': new_key})
 362
 363             # update the openssl key and gid
 364             pkey = convert_public_key(new_key)
 365             uuid = create_uuid()
 366             gid_object = api.auth.hierarchy.create_gid(urn, uuid, pkey)
 367             gid = gid_object.save_to_string(save_parents=True)
 368             record['gid'] = gid
 369             record = SfaRecord(dict=record)
 370             table.update(record)
 371
 372     elif type == "node":
 373         api.plshell.UpdateNode(api.plauth, pointer, new_record)
 374
 375     else:
 376         raise UnknownSfaType(type)
 377
 378     # update membership for researchers, pis, owners, operators
 379     api.update_membership(record, new_record)
 380
 381     return 1
 382
 383 def remove(api, xrn, type, origin_hrn=None):
 384     # convert xrn to hrn
 385     if type:
 386         hrn = urn_to_hrn(xrn)[0]
 387     else:
 388         hrn, type = urn_to_hrn(xrn)
 389
 390     table = SfaTable()
 391     filter = {'hrn': hrn}
 392     if type not in ['all', '*']:
 393         filter['type'] = type
 394     records = table.find(filter)
 395     if not records:
 396         raise RecordNotFound(hrn)
 397     record = records[0]
 398     type = record['type']
 399
 400     credential = api.getCredential()
 401     registries = api.registries
 402
 403     # Try to remove the object from the PLCDB of federated agg.
 404     # This is attempted before removing the object from the local agg's PLCDB and sfa table
 405     if hrn.startswith(api.hrn) and type in ['user', 'slice', 'authority']:
 406         for registry in registries:
 407             if registry not in [api.hrn]:
 408                 try:
 409                     result=registries[registry].remove_peer_object(credential, record, origin_hrn)
 410                 except:
 411                     pass
 412     if type == "user":
 413         persons = api.plshell.GetPersons(api.plauth, record['pointer'])
 414         # only delete this person if he has site ids. if he doesnt, it probably means
 415         # he was just removed from a site, not actually deleted
 416         if persons and persons[0]['site_ids']:
 417             api.plshell.DeletePerson(api.plauth, record['pointer'])
 418     elif type == "slice":
 419         if api.plshell.GetSlices(api.plauth, record['pointer']):
 420             api.plshell.DeleteSlice(api.plauth, record['pointer'])
 421     elif type == "node":
 422         if api.plshell.GetNodes(api.plauth, record['pointer']):
 423             api.plshell.DeleteNode(api.plauth, record['pointer'])
 424     elif type == "authority":
 425         if api.plshell.GetSites(api.plauth, record['pointer']):
 426             api.plshell.DeleteSite(api.plauth, record['pointer'])
 427     else:
 428         raise UnknownSfaType(type)
 429
 430     table.remove(record)
 431
 432     return 1
 433
 434 def remove_peer_object(api, record, origin_hrn=None):
 435     pass
 436
 437 def register_peer_object(api, record, origin_hrn=None):
 438     pass