sfa/methods/remove_peer_object.py

   1 from sfa.util.faults import *
   2 from sfa.util.method import Method
   3 from sfa.util.parameter import Parameter, Mixed
   4 from sfa.trust.auth import Auth
   5 from sfa.util.record import GeniRecord
   6 from sfa.util.genitable import GeniTable
   7 from sfa.util.debug import log
   8 from sfa.trust.credential import Credential
   9 from sfa.util.misc import *
  10 from types import StringTypes
  11
  12 class remove_peer_object(Method):
  13     """
  14     Remove an peer object from the PLC records of a local aggregate.
  15     This method will be called by registry.remove() while removing
  16     a record from the local aggreage's PLCDB and sfa table. This
  17     method need not be directly called by end-user.
  18
  19     @param cred credential string
  20     @param record record as stored in the local registry
  21
  22     @return 1 if successful, faults otherwise
  23     """
  24
  25     interfaces = ['registry']
  26
  27     accepts = [
  28         Parameter(str, "Credential string"),
  29         Parameter(dict, "Record dictionary"),
  30         Mixed(Parameter(str, "Human readable name of the original caller"),
  31               Paramater(None, "Origin hrn not specified"))
  32         ]
  33
  34     returns = Parameter(int, "1 if successful")
  35
  36     def call(self, cred, record, 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, hrn, self.name))
  43
  44         self.api.auth.check(cred, "remove")
  45
  46         # Only allow the local interface or record owner to delete peer_records
  47         try: self.api.auth.verify_object_permission(record['hrn'])
  48         except: self.api.auth.verify_cred_is_me(cred)
  49
  50         table = GeniTable()
  51         hrn, type = record['hrn'], record['type']
  52         records = table.find({'hrn': hrn, 'type': type })
  53         for record in records:
  54           if record['peer_authority']:
  55             self.remove_plc_record(record)
  56             table.remove(record)
  57
  58         return 1
  59
  60     def remove_plc_record(self, record):
  61         type = record['type']
  62         if type == "user":
  63             persons = self.api.plshell.GetPersons(self.api.plauth, {'person_id' : record['pointer']})
  64             if not persons:
  65                 return 1
  66             person = persons[0]
  67             if person['peer_id']:
  68                 peer = self.get_peer_name(person['peer_id'])
  69                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person['person_id'], peer)
  70             self.api.plshell.DeletePerson(self.api.plauth, person['person_id'])
  71
  72         elif type == "slice":
  73             slices=self.api.plshell.GetSlices(self.api.plauth, {'slice_id' : record['pointer']})
  74             if not slices:
  75                 return 1
  76             slice=slices[0]
  77             if slice['peer_id']:
  78                 peer = self.get_peer_name(slice['peer_id'])
  79                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
  80             self.api.plshell.DeleteSlice(self.api.plauth, slice['slice_id'])
  81         elif type == "authority":
  82             sites=self.api.plshell.GetSites(self.api.plauth, {'site_id' : record['pointer']})
  83             if not sites:
  84                 return 1
  85             site=sites[0]
  86             if site['peer_id']:
  87                 peer = self.get_peer_name(site['peer_id'])
  88                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site['site_id'], peer)
  89             self.api.plshell.DeleteSite(self.api.plauth, site['site_id'])
  90
  91         else:
  92             raise UnknownGeniType(type)
  93
  94         return 1
  95
  96     def get_peer_name(self, peer_id):
  97         peers = self.api.plshell.GetPeers(self.api.plauth, [peer_id], ['peername', 'shortname', 'hrn_root'])
  98         if not peers:
  99             raise GeniInvalidArgument, "No such peer"
 100         peer = peers[0]
 101         return peer['shortname']
 102
 103
 104