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