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