initial checkin of redeem_ticket method

diff --git a/sfacomponent/methods/redeem_ticket.py b/sfacomponent/methods/redeem_ticket.py
new file mode 100644 (file)
index 0000000..7351869
--- /dev/null
+++ b/sfacomponent/methods/redeem_ticket.py
@@ -0,0 +1,56 @@
+### $Id: reset_slice.py 15428 2009-10-23 15:28:03Z tmack $
+### $URL: https://svn.planet-lab.org/svn/sfa/trunk/sfacomponent/methods/reset_slice.py $
+import xmlrpclib
+from sfa.util.faults import *
+from sfa.util.misc import *
+from sfa.util.method import Method
+from sfa.util.parameter import Parameter, Mixed
+
+class redeem_ticket(Method):
+    """
+    Reset the specified slice      
+
+    @param cred credential string specifying the rights of the caller
+    @param ticket 
+    @return 1 is successful, faults otherwise  
+    """
+
+    interfaces = ['component']
+    
+    accepts = [
+        Parameter(str, "Credential string representation of SFA credential"),
+        Parameter(str, "Ticket  string representation of SFA ticket"),
+        Mixed(Parameter(str, "Request hash"),
+              Parameter(None, "Request hash not specified"))
+        ]
+
+    returns = [Parameter(int, "1 if successful")]
+    
+    def call(self, cred, ticket, request_hash=None):
+        # This cred will be an slice cred, not a user, so we cant use it to
+        # authenticate the caller's request_hash. Let just get the caller's gid
+        # from the cred and authenticate using that
+        client_gid = Credential(string=cred).get_gid_caller()
+        client_gid_str = client_gid.save_to_string(save_parents=True)
+        self.api.auth.authenticateGid(client_gid_str, [cred, hrn], request_hash)
+        self.api.auth.check(cred, 'redeemticket')
+        
+        ticket = SfaTicket(string=ticket)
+        # XX we should verify the ticket, but we need the privste keys to do that
+        # maybe we should just pass the ticket to the authoriative registry to it 
+        # verify the ticket for us
+        #ticket.verify(pkey)
+        # or 
+        #self.api.registry.verify_ticket(ticket.save_to_string(save_parents=True))
+
+        ticket.decode()
+        hrn = ticket.attributes['slivers'][0]['hrn']
+        slicename = hrn_to_pl_slicename(hrn)
+        if not self.api.sliver_exists(slicename):
+            raise SliverDoesNotExist(slicename)
+
+        # convert ticket to format nm is used to
+        nm_ticket = xmlrpclib.dumps((ticket.attributes,), methodresponse=True)
+        self.api.nodemanager.AdminTicket(nm_ticket)
+        
+        return 1