sfa/methods/remove.py

   1 ### $Id$
   2 ### $URL$
   3
   4 from sfa.util.faults import *
   5 from sfa.util.method import Method
   6 from sfa.util.parameter import Parameter, Mixed
   7 from sfa.trust.auth import Auth
   8 from sfa.util.record import GeniRecord
   9 from sfa.util.genitable import GeniTable
  10 from sfa.util.debug import log
  11 from sfa.trust.credential import Credential
  12 from sfa.server.registry import Registries
  13
  14 class remove(Method):
  15     """
  16     Remove an object from the registry. If the object represents a PLC object,
  17     then the PLC records will also be removed.
  18
  19     @param cred credential string
  20     @param type record type
  21     @param hrn human readable name of record to remove
  22
  23     @return 1 if successful, faults otherwise
  24     """
  25
  26     interfaces = ['registry']
  27
  28     accepts = [
  29         Parameter(str, "Credential string"),
  30         Parameter(str, "Record type"),
  31         Parameter(str, "Human readable name (hrn) of record to be removed")
  32         ]
  33
  34     returns = Parameter(int, "1 if successful")
  35
  36     def call(self, cred, type, hrn, caller_cred=None):
  37         if caller_cred==None:
  38             caller_cred=cred
  39         #log the call
  40         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(), hrn, self.name))
  41
  42         self.api.auth.check(cred, "remove")
  43         self.api.auth.verify_object_permission(hrn)
  44         table = GeniTable()
  45         filter = {'hrn': hrn}
  46         if type not in ['all', '*']:
  47             filter['type'] = type
  48         records = table.find(filter)
  49         if not records:
  50             raise RecordNotFound(hrn)
  51         record = records[0]
  52         type = record['type']
  53
  54         credential = self.api.getCredential()
  55         registries = Registries(self.api)
  56
  57         # Try to remove the object from the PLCDB of federated agg.
  58         # This is attempted before removing the object from the local agg's PLCDB and sfa table
  59         if hrn.startswith(self.api.hrn) and type in ['user', 'slice', 'authority']:
  60             for registry in registries:
  61                 if registry not in [self.api.hrn]:
  62                     try:
  63                         result=registries[registry].remove_peer_object(credential, record)
  64                     except:
  65                         pass
  66         if type == "user":
  67             persons = self.api.plshell.GetPersons(self.api.plauth, record['pointer'])
  68             # only delete this person if he has site ids. if he doesnt, it probably means
  69             # he was just removed from a site, not actually deleted
  70             if persons and persons[0]['site_ids']:
  71                 self.api.plshell.DeletePerson(self.api.plauth, record['pointer'])
  72         elif type == "slice":
  73             if self.api.plshell.GetSlices(self.api.plauth, record['pointer']):
  74                 self.api.plshell.DeleteSlice(self.api.plauth, record['pointer'])
  75         elif type == "node":
  76             if self.api.plshell.GetNodes(self.api.plauth, record['pointer']):
  77                 self.api.plshell.DeleteNode(self.api.plauth, record['pointer'])
  78         elif type == "authority":
  79             if self.api.plshell.GetSites(self.api.plauth, record['pointer']):
  80                 self.api.plshell.DeleteSite(self.api.plauth, record['pointer'])
  81         else:
  82             raise UnknownGeniType(type)
  83
  84         table.remove(record)
  85
  86         # forward the call after replacing the root hrn
  87
  88         return 1