again getting away with caller_Cred and passing just the hrn of the initial caller
[sfa.git] / sfa / methods / delete_slice.py
1 ### $Id$
2 ### $URL$
3
4 from sfa.util.faults import *
5 from sfa.util.misc import *
6 from sfa.util.method import Method
7 from sfa.util.parameter import Parameter, Mixed
8 from sfa.trust.auth import Auth
9 from sfa.trust.credential import Credential
10
11 class delete_slice(Method):
12     """
13     Remove the slice from all nodes.      
14
15     @param cred credential string specifying the rights of the caller
16     @param hrn human readable name specifying the slice to delete
17     @return 1 if successful, faults otherwise  
18     """
19
20     interfaces = ['aggregate', 'slicemgr', 'component']
21     
22     accepts = [
23         Parameter(str, "Credential string"),
24         Parameter(str, "Human readable name of slice to delete"),
25         Mixed(Parameter(str, "Request hash"),
26               Parameter(None, "Request hash not specified"))
27         ]
28
29     returns = Parameter(int, "1 if successful")
30     
31     def call(self, cred, hrn, request_hash=None, origin_hrn=None):
32        
33         if origin_hrn==None:
34             origin_hrn=origin_hrn=Credential(string=cred).get_gid_caller().get_hrn()
35         #log the call
36         self.api.logger.info("interface: %s\tcaller-hrn: %s\ttarget-hrn: %s\tmethod-name: %s"%(self.api.interface, origin_hrn, hrn, self.name))
37
38         # This cred will be an slice cred, not a user, so we cant use it to
39         # authenticate the caller's request_hash. Let just get the caller's gid
40         # from the cred and authenticate using that
41         client_gid = Credential(string=cred).get_gid_caller()
42         client_gid_str = client_gid.save_to_string(save_parents=True)
43         self.api.auth.authenticateGid(client_gid_str, [cred, hrn], request_hash)
44         self.api.auth.check(cred, 'deleteslice')
45
46         
47         # send the call to the right manager
48         manager_base = 'sfa.managers'
49         if self.api.interface in ['component']:
50             mgr_type = self.api.config.SFA_CM_TYPE
51             manager_module = manager_base + ".component_manager_%s" % mgr_type
52             manager = __import__(manager_module, fromlist=[manager_base])
53             manager.delete_slice(self.api, hrn)
54         elif self.api.interface in ['aggregate']:
55             mgr_type = self.api.config.SFA_AGGREGATE_TYPE
56             manager_module = manager_base + ".aggregate_manager_%s" % mgr_type
57             manager = __import__(manager_module, fromlist=[manager_base])
58             manager.delete_slice(self.api, hrn)
59         elif self.api.interface in ['slicemgr']:        
60             mgr_type = self.api.config.SFA_SM_TYPE
61             manager_module = manager_base + ".slice_manager_%s" % mgr_type
62             manager = __import__(manager_module, fromlist=[manager_base])
63             manager.delete_slice(self.api, hrn, origin_hrn)
64
65         return 1