Don't accept master nodes as secondary if they are not in the configuration

file. New masters will be registered by an admin and their config updated to
ensure no more than one master could run concurrently when they restart without
known each other.


git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@1170 71dcc9de-d417-0410-9af5-da40c76e7ee4

neo/master/app.py

@@ -813,6 +813,9 @@ class Application(object):
             handler = administration.AdministrationHandler
             logging.info('Accept an admin %s' % dump(uuid))
         elif node_type == protocol.MASTER_NODE_TYPE:
+            if node is None:
+                # unknown master, rejected
+                raise protocol.ProtocolError('Reject an unknown master node')
             # always put other master in waiting state
             klass = MasterNode
             handler = secondary.SecondaryMasterHandler
@@ -820,7 +823,7 @@ class Application(object):
         elif node_type == protocol.CLIENT_NODE_TYPE:
             # refuse any client before running
             if self.cluster_state != protocol.RUNNING:
-                logging.info('reject a connection from a client')
+                logging.info('Reject a connection from a client')
                 raise protocol.NotReadyError
             klass = ClientNode
             handler = client.ClientServiceHandler

neo/master/handlers/election.py

@@ -44,10 +44,8 @@ class ElectionHandler(MasterHandler):
                 continue
             else:
                 node = app.nm.getNodeByServer(addr)
-                if node is None:
-                    node = MasterNode(server = addr)
-                    app.nm.add(node)
-                    app.unconnected_master_node_set.add(addr)
+                # The master must be known
+                assert node is not None
 
                 if uuid is not None:
                     # If I don't know the UUID yet, believe what the peer
@@ -168,10 +166,8 @@ class ClientElectionHandler(MasterHandler):
                 continue
             else:
                 n = app.nm.getNodeByServer(address)
-                if n is None:
-                    n = MasterNode(server=address)
-                    app.nm.add(n)
-                    app.unconnected_master_node_set.add(address)
+                # master node must be known
+                assert n is not None
 
                 if uuid is not None:
                     # If I don't know the UUID yet, believe what the peer
@@ -232,10 +228,8 @@ class ServerElectionHandler(MasterHandler):
             raise protocol.NotReadyError
         node = app.nm.getNodeByServer(address)
         if node is None:
-            node = MasterNode(server=address, uuid=uuid)
-            app.nm.add(node)
-            app.unconnected_master_node_set.add(address)
-        else:
+            logging.error('unknown master node: %s' % (address, ))
+            raise protocol.ProtocolError('unknown master node')
         # If this node is broken, reject it.
         if node.getUUID() == uuid:
             if node.getState() == BROKEN_STATE:

neo/master/handlers/secondary.py

@@ -79,9 +79,8 @@ class PrimaryMasterHandler(MasterHandler):
                 continue
             else:
                 n = app.nm.getNodeByServer(addr)
-                if n is None:
-                    n = MasterNode(server = addr)
-                    app.nm.add(n)
+                # master node must be known
+                assert n is not None
 
                 if uuid is not None:
                     # If I don't know the UUID yet, believe what the peer