def GetTicket(self, api, xrn, creds, rspec, users, options):
slice_hrn, type = urn_to_hrn(xrn)
# get the netspecs contained within the clients rspec
aggregate_rspecs = {}
tree= etree.parse(StringIO(rspec))
elements = tree.findall('./network')
for element in elements:
aggregate_hrn = element.values()[0]
aggregate_rspecs[aggregate_hrn] = rspec
# get the callers hrn
valid_cred = api.auth.checkCredentials(creds, 'getticket', slice_hrn)[0]
caller_hrn = Credential(string=valid_cred).get_gid_caller().get_hrn()
# attempt to use delegated credential first
cred = api.getDelegatedCredential(creds)
if not cred:
cred = api.getCredential()
threads = ThreadManager()
for (aggregate, aggregate_rspec) in aggregate_rspecs.iteritems():
# xxx sounds like using call_id here would be safer
# prevent infinite loop. Dont send request back to caller
# unless the caller is the aggregate's SM
if caller_hrn == aggregate and aggregate != api.hrn:
continue
interface = api.aggregates[aggregate]
server = api.server_proxy(interface, cred)
threads.run(server.GetTicket, xrn, [cred], aggregate_rspec, users, options)
results = threads.get_results()
# gather information from each ticket
rspec = None
initscripts = []
slivers = []
object_gid = None
for result in results:
agg_ticket = SfaTicket(string=result)
attrs = agg_ticket.get_attributes()
if not object_gid:
object_gid = agg_ticket.get_gid_object()
if not rspec:
rspec = RSpec(agg_ticket.get_rspec())
else:
rspec.version.merge(agg_ticket.get_rspec())
initscripts.extend(attrs.get('initscripts', []))
slivers.extend(attrs.get('slivers', []))
# merge info
attributes = {'initscripts': initscripts,
'slivers': slivers}
# create a new ticket
ticket = SfaTicket(subject = slice_hrn)
ticket.set_gid_caller(api.auth.client_gid)
ticket.set_issuer(key=api.key, subject=api.hrn)
ticket.set_gid_object(object_gid)
ticket.set_pubkey(object_gid.get_pubkey())
#new_ticket.set_parent(api.auth.hierarchy.get_auth_ticket(auth_hrn))
ticket.set_attributes(attributes)
ticket.set_rspec(rspec.toxml())
ticket.encode()
ticket.sign()
return ticket.save_to_string(save_parents=True)
