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         Mixed(Parameter(str, "Request hash"),
  33               Parameter(None, "Request hash not specified"))
  34         ]
  35
  36     returns = Parameter(int, "1 if successful")
  37
  38     def call(self, cred, type, hrn, request_hash=None, origin_hrn=None):
  39         # This cred will be an authority cred, not a user, so we cant use it to
  40         # authenticate the caller's request_hash. Let just get the caller's gid
  41         # from the cred and authenticate using that
  42         client_gid = Credential(string=cred).get_gid_caller()
  43         client_gid_str = client_gid.save_to_string(save_parents=True)
  44         self.api.auth.authenticateGid(client_gid_str, [cred, type, hrn], request_hash)
  45         self.api.auth.check(cred, "remove")
  46         self.api.auth.verify_object_permission(hrn)
  47
  48         if origin_hrn==None:
  49             origin_hrn=Credential(string=cred).get_gid_caller().get_hrn()
  50
  51         #log the call
  52         self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
  53         table = GeniTable()
  54         filter = {'hrn': hrn}
  55         if type not in ['all', '*']:
  56             filter['type'] = type
  57         records = table.find(filter)
  58         if not records:
  59             raise RecordNotFound(hrn)
  60         record = records[0]
  61         type = record['type']
  62
  63         credential = self.api.getCredential()
  64         registries = Registries(self.api)
  65
  66         # Try to remove the object from the PLCDB of federated agg.
  67         # This is attempted before removing the object from the local agg's PLCDB and sfa table
  68         if hrn.startswith(self.api.hrn) and type in ['user', 'slice', 'authority']:
  69             for registry in registries:
  70                 if registry not in [self.api.hrn]:
  71                     try:
  72                         request_hash=None
  73                         result=registries[registry].remove_peer_object(credential, record, request_hash, origin_hrn)
  74                     except:
  75                         pass
  76         if type == "user":
  77             persons = self.api.plshell.GetPersons(self.api.plauth, record['pointer'])
  78             # only delete this person if he has site ids. if he doesnt, it probably means
  79             # he was just removed from a site, not actually deleted
  80             if persons and persons[0]['site_ids']:
  81                 self.api.plshell.DeletePerson(self.api.plauth, record['pointer'])
  82         elif type == "slice":
  83             if self.api.plshell.GetSlices(self.api.plauth, record['pointer']):
  84                 self.api.plshell.DeleteSlice(self.api.plauth, record['pointer'])
  85         elif type == "node":
  86             if self.api.plshell.GetNodes(self.api.plauth, record['pointer']):
  87                 self.api.plshell.DeleteNode(self.api.plauth, record['pointer'])
  88         elif type == "authority":
  89             if self.api.plshell.GetSites(self.api.plauth, record['pointer']):
  90                 self.api.plshell.DeleteSite(self.api.plauth, record['pointer'])
  91         else:
  92             raise UnknownGeniType(type)
  93
  94         table.remove(record)
  95
  96         # forward the call after replacing the root hrn
  97
  98         return 1