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         Parameter(str, "Request hash")
  33         ]
  34
  35     returns = Parameter(int, "1 if successful")
  36
  37     def call(self, cred, type, hrn, request_hash, caller_cred=None):
  38
  39         if caller_cred==None:
  40             caller_cred=cred
  41         #log the call
  42         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))
  43         # This cred will be an authority cred, not a user, so we cant use it to
  44         # authenticate the caller's request_hash. Let just get the caller's gid
  45         # from the cred and authenticate using that
  46         client_gid = Credential(string=cred).get_gid_caller()
  47         client_gid_str = client_gid.save_to_string(save_parents=True)
  48         self.api.auth.authenticateGid(client_gid_str, [cred, type, hrn], request_hash)
  49         self.api.auth.check(cred, "remove")
  50         self.api.auth.verify_object_permission(hrn)
  51         table = GeniTable()
  52         filter = {'hrn': hrn}
  53         if type not in ['all', '*']:
  54             filter['type'] = type
  55         records = table.find(filter)
  56         if not records:
  57             raise RecordNotFound(hrn)
  58         record = records[0]
  59         type = record['type']
  60
  61         credential = self.api.getCredential()
  62         registries = Registries(self.api)
  63
  64         # Try to remove the object from the PLCDB of federated agg.
  65         # This is attempted before removing the object from the local agg's PLCDB and sfa table
  66         if hrn.startswith(self.api.hrn) and type in ['user', 'slice', 'authority']:
  67             for registry in registries:
  68                 if registry not in [self.api.hrn]:
  69                     try:
  70                         result=registries[registry].remove_peer_object(credential, record)
  71                     except:
  72                         pass
  73         if type == "user":
  74             persons = self.api.plshell.GetPersons(self.api.plauth, record['pointer'])
  75             # only delete this person if he has site ids. if he doesnt, it probably means
  76             # he was just removed from a site, not actually deleted
  77             if persons and persons[0]['site_ids']:
  78                 self.api.plshell.DeletePerson(self.api.plauth, record['pointer'])
  79         elif type == "slice":
  80             if self.api.plshell.GetSlices(self.api.plauth, record['pointer']):
  81                 self.api.plshell.DeleteSlice(self.api.plauth, record['pointer'])
  82         elif type == "node":
  83             if self.api.plshell.GetNodes(self.api.plauth, record['pointer']):
  84                 self.api.plshell.DeleteNode(self.api.plauth, record['pointer'])
  85         elif type == "authority":
  86             if self.api.plshell.GetSites(self.api.plauth, record['pointer']):
  87                 self.api.plshell.DeleteSite(self.api.plauth, record['pointer'])
  88         else:
  89             raise UnknownGeniType(type)
  90
  91         table.remove(record)
  92
  93         # forward the call after replacing the root hrn
  94
  95         return 1