Merge from trunk

[plcapi.git] / trunk / PLC / Methods / DeleteNodeFromPCU.py

diff --git a/trunk/PLC/Methods/DeleteNodeFromPCU.py b/trunk/PLC/Methods/DeleteNodeFromPCU.py
new file mode 100644 (file)
index 0000000..8e728ef
--- /dev/null
+++ b/trunk/PLC/Methods/DeleteNodeFromPCU.py
@@ -0,0 +1,65 @@
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.Nodes import Node, Nodes
+from PLC.PCUs import PCU, PCUs
+from PLC.Sites import Site, Sites
+from PLC.Auth import Auth
+
+class DeleteNodeFromPCU(Method):
+    """
+    Deletes a node from a PCU.
+
+    Non-admins may only update PCUs at their sites.
+
+    Returns 1 if successful, faults otherwise.
+    """
+
+    roles = ['admin', 'pi', 'tech']
+
+    accepts = [
+        Auth(),
+       Mixed(Node.fields['node_id'],
+              Node.fields['hostname']),
+        PCU.fields['pcu_id']
+        ]
+
+    returns = Parameter(int, '1 if successful')
+
+    def call(self, auth, node_id_or_hostname, pcu_id):
+        # Get node
+        nodes = Nodes(self.api, [node_id_or_hostname])
+        if not nodes:
+            raise PLCInvalidArgument, "No such node"
+
+        node = nodes[0]
+
+        # Get PCU
+        pcus = PCUs(self.api, [pcu_id])
+        if not pcus:
+            raise PLCInvalidArgument, "No such PCU"
+
+        pcu = pcus[0]
+
+        if 'admin' not in self.caller['roles']:
+            ok = False
+            sites = Sites(self.api, self.caller['site_ids'])
+            for site in sites:
+                if pcu['pcu_id'] in site['pcu_ids']:
+                    ok = True
+                    break
+            if not ok:
+                raise PLCPermissionDenied, "Not allowed to update that PCU"
+       
+       # Removed node from PCU
+       
+        if node['node_id'] in pcu['node_ids']:
+            pcu.remove_node(node)
+
+       # Logging variables
+       self.event_objects = {'PCU': [pcu['pcu_id']],
+                             'Node': [node['node_id']]}        
+       self.message = 'Node %d removed from PCU %d' % \
+               (node['node_id'], pcu['pcu_id']) 
+       
+       return 1