import time import sys from sfa.util.sfalogging import logger from sfa.util.faults import RecordNotFound, SliverDoesNotExist from sfa.util.xrn import Xrn, get_authority, hrn_to_urn, urn_to_hrn, urn_to_sliver_id from sfa.util.plxrn import slicename_to_hrn, hrn_to_pl_slicename from sfa.util.version import version_core from sfa.util.sfatime import utcparse from sfa.util.callids import Callids from sfa.trust.sfaticket import SfaTicket from sfa.trust.credential import Credential from sfa.rspecs.version_manager import VersionManager from sfa.rspecs.rspec import RSpec from sfa.server.sfaapi import SfaApi import sfa.plc.peers as peers from sfa.plc.plaggregate import PlAggregate from sfa.plc.plslices import PlSlices class AggregateManager: def __init__ (self): # xxx Thierry : caching at the aggregate level sounds wrong... self.caching=True #self.caching=False # essentially a union of the core version, the generic version (this code) and # whatever the driver needs to expose def GetVersion(self, api, options): xrn=Xrn(api.hrn) version = version_core() version_generic = {'interface':'aggregate', 'sfa': 2, 'geni_api': 2, 'hrn':xrn.get_hrn(), 'urn':xrn.get_urn(), } version.update(version_generic) testbed_version = self.driver.aggregate_version() version.update(testbed_version) return version def SliverStatus (self, api, slice_xrn, creds, options): call_id = options.get('call_id') if Callids().already_handled(call_id): return {} xrn = Xrn(slice_xrn) slice_urn=xrn.get_urn() slice_hrn=xrn.get_hrn() return self.driver.sliver_status (slice_urn, slice_hrn) def CreateSliver(self, api, slice_xrn, creds, rspec_string, users, options): """ Create the sliver[s] (slice) at this aggregate. Verify HRN and initialize the slice record in PLC if necessary. """ call_id = options.get('call_id') if Callids().already_handled(call_id): return "" xrn = Xrn(slice_xrn) slice_urn=xrn.get_urn() slice_hrn=xrn.get_hrn() return self.driver.create_sliver (slice_urn, slice_hrn, creds, rspec_string, users, options) def RenewSliver(self, api, xrn, creds, expiration_time, options): call_id = options.get('call_id') if Callids().already_handled(call_id): return True xrn = Xrn(slice_xrn) slice_urn=xrn.get_urn() slice_hrn=xrn.get_hrn() return self.driver.renew_sliver (slice_urn, slice_hrn, creds, expiration_time, options) def start_slice(self, api, xrn, creds): (hrn, _) = urn_to_hrn(xrn) slicename = hrn_to_pl_slicename(hrn) slices = api.driver.GetSlices({'name': slicename}, ['slice_id']) if not slices: raise RecordNotFound(hrn) slice_id = slices[0]['slice_id'] slice_tags = api.driver.GetSliceTags({'slice_id': slice_id, 'tagname': 'enabled'}, ['slice_tag_id']) # just remove the tag if it exists if slice_tags: api.driver.DeleteSliceTag(slice_tags[0]['slice_tag_id']) return 1 def stop_slice(self, api, xrn, creds): hrn, _ = urn_to_hrn(xrn) slicename = hrn_to_pl_slicename(hrn) slices = api.driver.GetSlices({'name': slicename}, ['slice_id']) if not slices: raise RecordNotFound(hrn) slice_id = slices[0]['slice_id'] slice_tags = api.driver.GetSliceTags({'slice_id': slice_id, 'tagname': 'enabled'}) if not slice_tags: api.driver.AddSliceTag(slice_id, 'enabled', '0') elif slice_tags[0]['value'] != "0": tag_id = slice_tags[0]['slice_tag_id'] api.driver.UpdateSliceTag(tag_id, '0') return 1 def reset_slice(self, api, xrn): # XX not implemented at this interface return 1 def DeleteSliver(self, api, xrn, creds, options): call_id = options.get('call_id') if Callids().already_handled(call_id): return "" (hrn, _) = urn_to_hrn(xrn) slicename = hrn_to_pl_slicename(hrn) slices = api.driver.GetSlices({'name': slicename}) if not slices: return 1 slice = slices[0] # determine if this is a peer slice peer = peers.get_peer(api, hrn) try: if peer: api.driver.UnBindObjectFromPeer('slice', slice['slice_id'], peer) api.driver.DeleteSliceFromNodes(slicename, slice['node_ids']) finally: if peer: api.driver.BindObjectToPeer('slice', slice['slice_id'], peer, slice['peer_slice_id']) return 1 def ListSlices(self, api, creds, options): call_id = options.get('call_id') if Callids().already_handled(call_id): return [] # look in cache first if self.caching and api.cache: slices = api.cache.get('slices') if slices: return slices # get data from db slices = api.driver.GetSlices({'peer_id': None}, ['name']) slice_hrns = [slicename_to_hrn(api.hrn, slice['name']) for slice in slices] slice_urns = [hrn_to_urn(slice_hrn, 'slice') for slice_hrn in slice_hrns] # cache the result if self.caching and api.cache: api.cache.add('slices', slice_urns) return slice_urns def ListResources(self, api, creds, options): call_id = options.get('call_id') if Callids().already_handled(call_id): return "" # get slice's hrn from options xrn = options.get('geni_slice_urn', None) cached = options.get('cached', True) (hrn, _) = urn_to_hrn(xrn) version_manager = VersionManager() # get the rspec's return format from options rspec_version = version_manager.get_version(options.get('geni_rspec_version')) version_string = "rspec_%s" % (rspec_version) #panos adding the info option to the caching key (can be improved) if options.get('info'): version_string = version_string + "_"+options.get('info', 'default') # look in cache first if self.caching and api.cache and not xrn and cached: rspec = api.cache.get(version_string) if rspec: api.logger.info("aggregate.ListResources: returning cached value for hrn %s"%hrn) return rspec #panos: passing user-defined options #print "manager options = ",options aggregate = PlAggregate(self.driver) rspec = aggregate.get_rspec(slice_xrn=xrn, version=rspec_version, options=options) # cache the result if self.caching and api.cache and not xrn: api.cache.add(version_string, rspec) return rspec def GetTicket(self, api, xrn, creds, rspec, users, options): (slice_hrn, _) = urn_to_hrn(xrn) slices = PlSlices(self.driver) peer = slices.get_peer(slice_hrn) sfa_peer = slices.get_sfa_peer(slice_hrn) # get the slice record credential = api.getCredential() interface = api.registries[api.hrn] registry = api.server_proxy(interface, credential) records = registry.Resolve(xrn, credential) # make sure we get a local slice record record = None for tmp_record in records: if tmp_record['type'] == 'slice' and \ not tmp_record['peer_authority']: #Error (E0602, GetTicket): Undefined variable 'SliceRecord' record = SliceRecord(dict=tmp_record) if not record: raise RecordNotFound(slice_hrn) # similar to CreateSliver, we must verify that the required records exist # at this aggregate before we can issue a ticket # parse rspec rspec = RSpec(rspec_string) requested_attributes = rspec.version.get_slice_attributes() # ensure site record exists site = slices.verify_site(hrn, slice_record, peer, sfa_peer) # ensure slice record exists slice = slices.verify_slice(hrn, slice_record, peer, sfa_peer) # ensure person records exists persons = slices.verify_persons(hrn, slice, users, peer, sfa_peer) # ensure slice attributes exists slices.verify_slice_attributes(slice, requested_attributes) # get sliver info slivers = slices.get_slivers(slice_hrn) if not slivers: raise SliverDoesNotExist(slice_hrn) # get initscripts initscripts = [] data = { 'timestamp': int(time.time()), 'initscripts': initscripts, 'slivers': slivers } # create the ticket object_gid = record.get_gid_object() new_ticket = SfaTicket(subject = object_gid.get_subject()) new_ticket.set_gid_caller(api.auth.client_gid) new_ticket.set_gid_object(object_gid) new_ticket.set_issuer(key=api.key, subject=api.hrn) new_ticket.set_pubkey(object_gid.get_pubkey()) new_ticket.set_attributes(data) new_ticket.set_rspec(rspec) #new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn)) new_ticket.encode() new_ticket.sign() return new_ticket.save_to_string(save_parents=True)