### $Id$
### $URL$
import traceback
+import types
from sfa.util.faults import *
+from sfa.util.namespace import *
from sfa.util.method import Method
from sfa.util.parameter import Parameter, Mixed
-from sfa.trust.auth import Auth
-from sfa.util.record import GeniRecord
-from sfa.util.genitable import GeniTable
from sfa.util.debug import log
-from sfa.server.registry import Registries
-from sfa.util.prefixTree import prefixTree
from sfa.trust.credential import Credential
+from sfa.util.record import SfaRecord
class resolve(Method):
"""
Resolve a record.
@param cred credential string authorizing the caller
- @param hrn human readable name to resolve
+ @param hrn human readable name to resolve (hrn or urn)
@return a list of record dictionaries or empty list
"""
accepts = [
Parameter(str, "Credential string"),
- Parameter(str, "Human readable name (hrn)"),
- Mixed(Parameter(str, "Request hash"),
- Parameter(None, "Request hash not specified"))
+ Mixed(Parameter(str, "Human readable name (hrn or urn)"),
+ Parameter(list, "List of Human readable names ([hrn])"))
]
- returns = [GeniRecord]
+ returns = [SfaRecord]
- def call(self, cred, hrn, request_hash=None, caller_cred=None):
-
- self.api.auth.authenticateCred(cred, [cred, hrn], request_hash)
- self.api.auth.check(cred, 'resolve')
- if caller_cred==None:
- caller_cred=cred
+ def call(self, cred, xrns, origin_hrn=None):
+ user_cred = Credential(string=cred)
+ if not isinstance(xrns, types.ListType):
+ xrns=[xrns]
+ hrns = [urn_to_hrn(xrn)[0] for xrn in xrns]
#log the call
- 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))
- good_records = []
-
- # load all know registry names into a prefix tree and attempt to find
- # the longest matching prefix
- registries = Registries(self.api)
- hrns = registries.keys()
- tree = prefixTree()
- tree.load(hrns)
- registry_hrn = tree.best_match(hrn)
-
- #if there was no match then this record belongs to an unknow registry
- if not registry_hrn:
- raise MissingAuthority(hrn)
-
- # if the best match (longest matching hrn) is not the local registry,
- # forward the request
- if registry_hrn != self.api.hrn:
- credential = self.api.getCredential()
- try:
- records = registries[registry_hrn].resolve(credential, hrn, caller_cred)
- good_records = [GeniRecord(dict=record).as_dict() for record in records]
- except:
- arg_list = [credential, hrn]
- request_hash=self.api.key.compute_hash(arg_list)
- records = registries[registry_hrn].resolve(credential, hrn, request_hash, caller_cred)
- good_records = [GeniRecord(dict=record).as_dict() for record in records]
-
- if good_records:
- return good_records
-
- # if we still havnt found the record yet, try the local registry
- table = GeniTable()
- records = table.findObjects(hrn)
- if not records:
- raise RecordNotFound(hrn)
- for record in records:
- try:
- self.api.fill_record_info(record)
- good_records.append(dict(record))
- except PlanetLabRecordDoesNotExist:
- # silently drop the ones that are missing in PL
- print >> log, "ignoring geni record ", record['hrn'], \
- " because pl record does not exist"
- table.remove(record)
+ if not origin_hrn:
+ origin_hrn = user_cred.get_gid_caller().get_hrn()
+ self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrns, self.name))
+
+ # validate the cred
+ self.api.auth.check(cred, 'resolve')
+ # send the call to the right manager
+ manager_base = 'sfa.managers'
+ mgr_type = self.api.config.SFA_REGISTRY_TYPE
+ manager_module = manager_base + ".registry_manager_%s" % mgr_type
+ manager = __import__(manager_module, fromlist=[manager_base])
+ return manager.resolve(self.api, xrns, origin_hrn=origin_hrn)
- return good_records