renaming

[sfa.git] / sfa / methods / Renew.py

diff --git a/sfa/methods/Renew.py b/sfa/methods/Renew.py
new file mode 100644 (file)
index 0000000..ee951c0
--- /dev/null
+++ b/sfa/methods/Renew.py
@@ -0,0 +1,46 @@
+import datetime
+
+from sfa.util.faults import InsufficientRights
+from sfa.util.xrn import urn_to_hrn
+from sfa.util.method import Method
+from sfa.util.sfatime import utcparse
+
+from sfa.trust.credential import Credential
+
+from sfa.storage.parameter import Parameter
+
+class Renew(Method):
+    """
+    Renews the resources in the specified slice or slivers by 
+    extending the lifetime.
+    
+    @param surn ([string]) List of URNs of to renew
+    @param credentials ([string]) of credentials
+    @param expiration_time (string) requested time of expiration
+    @param options (dict) options
+    """
+    interfaces = ['aggregate', 'slicemgr']
+    accepts = [
+        Parameter(str, "Slice URN"),
+        Parameter(type([str]), "List of credentials"),
+        Parameter(str, "Expiration time in RFC 3339 format"),
+        Parameter(dict, "Options"),
+        ]
+    returns = Parameter(bool, "Success or Failure")
+
+    def call(self, urns, creds, expiration_time, options):
+
+        self.api.logger.info("interface: %s\ttarget-hrn: %s\tcaller-creds: %s\tmethod-name: %s"%(self.api.interface, urns, creds, self.name))
+
+        # Find the valid credentials
+        valid_creds = self.api.auth.checkCredentials(creds, 'renewsliver', urns)
+
+        # Validate that the time does not go beyond the credential's expiration time
+        requested_time = utcparse(expiration_time)
+        max_renew_days = int(self.api.config.SFA_MAX_SLICE_RENEW)
+        if requested_time > Credential(string=valid_creds[0]).get_expiration():
+            raise InsufficientRights('Renewsliver: Credential expires before requested expiration time')
+        if requested_time > datetime.datetime.utcnow() + datetime.timedelta(days=max_renew_days):
+            raise Exception('Cannot renew > %s days from now' % max_renew_days)
+        return self.api.manager.Renew(self.api, urns, expiration_time, options)
+