1 from sfa.util.xrn import urn_to_hrn
2 from sfa.util.method import Method
3 from sfa.util.parameter import Parameter, Mixed
4 from sfa.trust.credential import Credential
6 class GetCredential(Method):
8 Retrive a credential for an object
9 If cred == None then the behavior reverts to GetSelfCredential
11 @param hrn human readable name of object (hrn or urn)
12 @param cred credential object specifying rights of the caller
13 @param type type of object (user | slice | node | authority )
15 @return the string representation of a credential object
18 interfaces = ['registry']
21 Mixed(Parameter(str, "Credential string"),
22 Parameter(type([str]), "List of credentials")),
23 Parameter(str, "Human readable name (hrn or urn)"),
24 Mixed(Parameter(str, "Record type"),
25 Parameter(None, "Type not specified")),
28 returns = Parameter(str, "String representation of a credential object")
30 def call(self, creds, xrn, type):
33 hrn = urn_to_hrn(xrn)[0]
35 hrn, type = urn_to_hrn(xrn)
38 valid_creds = self.api.auth.checkCredentials(creds, 'getcredential')
39 self.api.auth.verify_object_belongs_to_me(hrn)
42 origin_hrn = Credential(string=valid_creds[0]).get_gid_caller().get_hrn()
43 self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
45 return self.api.manager.GetCredential(self.api, xrn, type)