2 from sfa.util.faults import *
3 from sfa.util.xrn import urn_to_hrn
4 from sfa.util.method import Method
5 from sfa.util.parameter import Parameter, Mixed
6 from sfa.trust.auth import Auth
7 from sfa.util.config import Config
8 from sfa.trust.credential import Credential
9 from sfa.util.sfatablesRuntime import run_sfatables
11 class GetTicket(Method):
13 Retrieve a ticket. This operation is currently implemented on PLC
14 only (see SFA, engineering decisions); it is not implemented on
17 The ticket is filled in with information from the PLC database. This
18 information includes resources, and attributes such as user keys and
21 @param cred credential string
22 @param name name of the slice to retrieve a ticket for (hrn or urn)
23 @param rspec resource specification dictionary
25 @return the string representation of a ticket object
28 interfaces = ['aggregate', 'slicemgr']
31 Parameter(str, "Human readable name of slice to retrive a ticket for (hrn or urn)"),
32 Mixed(Parameter(str, "Credential string"),
33 Parameter(type([str]), "List of credentials")),
34 Parameter(str, "Resource specification (rspec)"),
35 Parameter(type([]), "List of user information")
38 returns = Parameter(str, "String representation of a ticket object")
40 def call(self, xrn, creds, rspec, users):
41 hrn, type = urn_to_hrn(xrn)
42 # Find the valid credentials
43 valid_creds = self.api.auth.checkCredentials(creds, 'getticket', hrn)
44 origin_hrn = Credential(string=valid_creds[0]).get_gid_caller().get_hrn()
47 self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
49 manager = self.api.get_interface_manager()
51 # filter rspec through sfatables
52 if self.api.interface in ['aggregate']:
53 chain_name = 'OUTGOING'
54 elif self.api.interface in ['slicemgr']:
55 chain_name = 'FORWARD-OUTGOING'
56 rspec = run_sfatables(chain_name, hrn, origin_hrn, rspec)
58 # remove nodes that are not available at this interface from the rspec
59 ticket = manager.get_ticket(self.api, xrn, creds, rspec, users)