sfa/methods/RegisterPeerObject.py

   1 from sfa.trust.certificate import Keypair, convert_public_key
   2 from sfa.trust.gid import *
   3
   4 from sfa.util.faults import *
   5 from sfa.util.xrn import get_authority
   6 from sfa.util.method import Method
   7 from sfa.util.parameter import Parameter, Mixed
   8 from sfa.util.record import SfaRecord
   9 from sfa.util.table import SfaTable
  10 from sfa.trust.auth import Auth
  11 from sfa.trust.gid import create_uuid
  12 from sfa.trust.credential import Credential
  13
  14 class RegisterPeerObject(Method):
  15     """
  16     Register a peer object with the registry. In addition to being stored in the
  17     SFA database, the appropriate records will also be created in the
  18     PLC databases
  19
  20     @param cred credential string
  21     @param record_dict dictionary containing record fields
  22     @return gid string representation
  23     """
  24
  25     interfaces = ['registry']
  26
  27     accepts = [
  28         Parameter(str, "Credential string"),
  29         Parameter(dict, "Record dictionary containing record fields"),
  30         Mixed(Parameter(str, "Human readable name of the original caller"),
  31               Parameter(None, "Origin hrn not specified"))
  32         ]
  33
  34     returns = Parameter(int, "1 if successful")
  35
  36     def call(self, cred, record_dict, origin_hrn=None):
  37         user_cred = Credential(string=cred)
  38
  39         #log the call
  40         if not origin_hrn:
  41             origin_hrn = user_cred.get_gid_caller().get_hrn()
  42         self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, None, self.name))
  43
  44         # validate the cred
  45         self.api.auth.check(cred, "register")
  46
  47         # make sure this is a peer record
  48         if 'peer_authority' not in record_dict or \
  49            not record_dict['peer_authority']:
  50             raise SfaInvalidArgument, "peer_authority must be specified"
  51
  52         record = SfaRecord(dict = record_dict)
  53         type, hrn, peer_authority = record['type'], record['hrn'], record['peer_authority']
  54         record['authority'] = get_authority(record['hrn'])
  55         # verify permissions
  56         self.api.auth.verify_cred_is_me(cred)
  57
  58         # check if record already exists
  59         table = SfaTable()
  60         existing_records = table.find({'type': type, 'hrn': hrn, 'peer_authority': peer_authority})
  61         if existing_records:
  62             for existing_record in existing_records:
  63                 if existing_record['pointer'] != record['pointer']:
  64                     record['record_id'] = existing_record['record_id']
  65                     table.update(record)
  66         else:
  67             record_id = table.insert(record)
  68
  69         return 1