blind 2to3

[plcapi.git] / PLC / Methods / GetSlices.py

diff --git a/PLC/Methods/GetSlices.py b/PLC/Methods/GetSlices.py
index 9aa041d..fff2c39 100644 (file)
--- a/PLC/Methods/GetSlices.py
+++ b/PLC/Methods/GetSlices.py
@@ -1,45 +1,82 @@
 from PLC.Method import Method
 from PLC.Parameter import Parameter, Mixed
-from PLC.Auth import PasswordAuth
+from PLC.Filter import Filter
+from PLC.Auth import Auth
+from PLC.Persons import Person, Persons
+from PLC.Nodes import Nodes
+from PLC.Sites import Site, Sites
 from PLC.Slices import Slice, Slices
 
 class GetSlices(Method):
     """
-    Return an array of structs containing details about slices. If
-    slice_id_or_name_list is specified, only the specified slices will
-    be queried.
+    Returns an array of structs containing details about slices. If
+    slice_filter is specified and is an array of slice identifiers or
+    slice names, or a struct of slice attributes, only slices matching
+    the filter will be returned. If return_fields is specified, only the
+    specified details will be returned.
 
     Users may only query slices of which they are members. PIs may
-    query any of the slices at their sites. Admins may query any
-    slice. If a slice that cannot be queried is specified in
-    slice_id_or_name_list, details about that slice will not be
-    returned.
+    query any of the slices at their sites. Admins and nodes may query
+    any slice. If a slice that cannot be queried is specified in
+    slice_filter, details about that slice will not be returned.
     """
 
-    roles = ['admin', 'pi', 'user', 'tech']
+    roles = ['admin', 'pi', 'user', 'node']
 
     accepts = [
-        PasswordAuth(),
-        [Mixed(Slice.fields['slice_id'],
-               Slice.fields['name'])],
-        Parameter([str], 'List of fields to return')
+        Auth(),
+        Mixed([Mixed(Slice.fields['slice_id'],
+                     Slice.fields['name'])],
+              Parameter(str,"name"),
+              Parameter(int,"slice_id"),
+              Filter(Slice.fields)),
+        Parameter([str], "List of fields to return", nullok = True)
         ]
 
     returns = [Slice.fields]
 
-    def call(self, auth, slice_id_or_name_list = None):
-        # Get slice information
-        slices = Slices(self.api, slice_id_or_name_list).values()
+    def call(self, auth, slice_filter = None, return_fields = None):
+        # If we are not admin, make sure to return only viewable
+        # slices.
+        if isinstance(self.caller, Person) and \
+           'admin' not in self.caller['roles']:
+            # Get slices that we are able to view
+            valid_slice_ids = self.caller['slice_ids']
+            # pis can view all slices at their site
+            if 'pi' in self.caller['roles'] and self.caller['site_ids']:
+                sites = Sites(self.api, self.caller['site_ids'])
+                for site in sites:
+                    valid_slice_ids += site['slice_ids']
+            # techs can view all slices on the nodes at their site
+            if 'tech' in self.caller['roles'] and self.caller['site_ids']:
+                nodes = Nodes(self.api, {'site_id': self.caller['site_ids']}, ['site_id', 'slice_ids'])
+                for node in nodes:
+                    valid_slice_ids.extend(node['slice_ids'])
+
+            if not valid_slice_ids:
+                return []
+
+            if slice_filter is None:
+                slice_filter = valid_slice_ids
+
+        # Must query at least slice_id (see below)
+        if return_fields is not None and 'slice_id' not in return_fields:
+            return_fields.append('slice_id')
+            added_fields = True
+        else:
+            added_fields = False
+
+        slices = Slices(self.api, slice_filter, return_fields)
 
         # Filter out slices that are not viewable
-        if 'admin' not in self.caller['roles']:
-            member_of = lambda slice: self.caller['person_id'] in slice['person_ids']
-            if 'pi' in self.caller['roles']:
-                can_view = lambda slice: \
-                           member_of(slice) or \
-                           slice['site_id'] in self.caller['site_ids']
-            else:
-                can_view = member_of
-            slices = filter(can_view, slices)
+        if isinstance(self.caller, Person) and \
+           'admin' not in self.caller['roles']:
+            slices = [slice for slice in slices if slice['slice_id'] in valid_slice_ids]
+
+        # Remove slice_id if not specified
+        if added_fields:
+            for slice in slices:
+                if 'slice_id' in slice:
+                    del slice['slice_id']
 
         return slices