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