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         Parameter(str, "Request hash"),
  31         ]
  32
  33     returns = Parameter(int, "1 if successful")
  34
  35     def call(self, cred, record, request_hash, caller_cred=None):
  36         if caller_cred==None:
  37             caller_cred=cred
  38         #log the call
  39         self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, Credential(string=caller_cred).get_gid_caller().get_hrn(), record['hrn'], self.name))
  40         self.api.auth.authenticateCred(cred, [cred], request_hash)
  41         self.api.auth.check(cred, "remove")
  42
  43         # Only allow the local interface or record owner to delete peer_records
  44         try: self.api.auth.verify_object_permission(record['hrn'])
  45         except: self.api.auth.verify_cred_is_me(cred)
  46
  47         table = GeniTable()
  48         hrn, type = record['hrn'], record['type']
  49         records = table.find({'hrn': hrn, 'type': type })
  50         for record in records:
  51           if record['peer_authority']:
  52             self.remove_plc_record(record)
  53             table.remove(record)
  54
  55         return 1
  56
  57     def remove_plc_record(self, record):
  58         type = record['type']
  59         if type == "user":
  60             persons = self.api.plshell.GetPersons(self.api.plauth, {'person_id' : record['pointer']})
  61             if not persons:
  62                 return 1
  63             person = persons[0]
  64             if person['peer_id']:
  65                 peer = self.get_peer_name(person['peer_id'])
  66                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'person', person['person_id'], peer)
  67             self.api.plshell.DeletePerson(self.api.plauth, person['person_id'])
  68
  69         elif type == "slice":
  70             slices=self.api.plshell.GetSlices(self.api.plauth, {'slice_id' : record['pointer']})
  71             if not slices:
  72                 return 1
  73             slice=slices[0]
  74             if slice['peer_id']:
  75                 peer = self.get_peer_name(slice['peer_id'])
  76                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'slice', slice['slice_id'], peer)
  77             self.api.plshell.DeleteSlice(self.api.plauth, slice['slice_id'])
  78         elif type == "authority":
  79             sites=self.api.plshell.GetSites(self.api.plauth, {'site_id' : record['pointer']})
  80             if not sites:
  81                 return 1
  82             site=sites[0]
  83             if site['peer_id']:
  84                 peer = self.get_peer_name(site['peer_id'])
  85                 self.api.plshell.UnBindObjectFromPeer(self.api.plauth, 'site', site['site_id'], peer)
  86             self.api.plshell.DeleteSite(self.api.plauth, site['site_id'])
  87
  88         else:
  89             raise UnknownGeniType(type)
  90
  91         return 1
  92
  93     def get_peer_name(self, peer_id):
  94         peers = self.api.plshell.GetPeers(self.api.plauth, [peer_id], ['peername', 'shortname', 'hrn_root'])
  95         if not peers:
  96             raise GeniInvalidArgument, "No such peer"
  97         peer = peers[0]
  98         return peer['shortname']
  99
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