- Change .py files to use 4-space indents and no hard tab characters.

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

diff --git a/PLC/Methods/GetPeerData.py b/PLC/Methods/GetPeerData.py
index da562e1..f26322e 100644 (file)
--- a/PLC/Methods/GetPeerData.py
+++ b/PLC/Methods/GetPeerData.py
@@ -1,6 +1,10 @@
 #
 # Thierry Parmentelat - INRIA
-# 
+#
+# $Id$
+# $URL$
+
+import time
 
 from PLC.Faults import *
 from PLC.Method import Method
@@ -13,38 +17,72 @@ from PLC.Sites import Site, Sites
 from PLC.Keys import Key, Keys
 from PLC.Nodes import Node, Nodes
 from PLC.Persons import Person, Persons
-from PLC.SliceAttributeTypes import SliceAttributeType, SliceAttributeTypes
 from PLC.Slices import Slice, Slices
+from PLC.SliceTags import SliceTags
 
-
-class GetPeerData (Method):
+class GetPeerData(Method):
     """
-    Gather all data needed by RefreshPeer in a single xmlrpc request
+    Returns lists of local objects that a peer should cache in its
+    database as foreign objects. Also returns the list of foreign
+    nodes in this database, for which the calling peer is
+    authoritative, to assist in synchronization of slivers.
 
-    Expects a peer id or peer name, that identifies the requesting peer
-    
-    Returns a dict containing, for the various types of cached entities,
-    the local objects as well as the ones attached to that peer
+    See the implementation of RefreshPeer for how this data is used.
     """
 
-    roles = ['admin']
-
-    accepts = [Auth(),
-               Parameter (int, "Peer id"),
-               ]
-    # for RefreshPeer 
-    returns = Parameter (dict,"Sites, Keys, Nodes, Persons, Slices")
-
-    def call (self, auth, peer_id):
-        # xxx a peer cannot yet compute it's peer_id under another plc
-        # so we return evrything by now
-        
-        return {
-            'Sites' : Sites (self.api),
-            'Keys' : Keys (self.api),
-            'Nodes' : Nodes (self.api),
-            'Persons' : Persons (self.api),
-            'SliceAttibuteTypes' : SliceAttributeTypes (self.api),
-            'Slices' : Slices (self.api,{'peer_id':None}),
+    roles = ['admin', 'peer']
+
+    accepts = [Auth()]
+
+    returns = {
+        'Sites': Parameter([dict], "List of local sites"),
+        'Keys': Parameter([dict], "List of local keys"),
+        'Nodes': Parameter([dict], "List of local nodes"),
+        'Persons': Parameter([dict], "List of local users"),
+        'Slices': Parameter([dict], "List of local slices"),
+        'db_time': Parameter(float, "(Debug) Database fetch time"),
+        }
+
+    def call (self, auth):
+        start = time.time()
+
+        # Filter out various secrets
+        node_fields = filter(lambda field: field not in \
+                             ['boot_nonce', 'key', 'session', 'root_person_ids'],
+                             Node.fields)
+        nodes = Nodes(self.api, {'peer_id': None}, node_fields);
+        # filter out whitelisted nodes
+        nodes = [ n for n in nodes if not n['slice_ids_whitelist']]
+
+
+        person_fields = filter(lambda field: field not in \
+                               ['password', 'verification_key', 'verification_expires'],
+                               Person.fields)
+
+        # XXX Optimize to return only those Persons, Keys, and Slices
+        # necessary for slice creation on the calling peer's nodes.
+
+        # filter out special person
+        persons = Persons(self.api, {'~email':[self.api.config.PLC_API_MAINTENANCE_USER,
+                                               self.api.config.PLC_ROOT_USER],
+                                     'peer_id': None}, person_fields)
+
+        # filter out system slices
+        system_slice_ids = SliceTags(self.api, {'name': 'system', 'value': '1'}).dict('slice_id')
+        slices = Slices(self.api, {'peer_id': None,
+                                   '~slice_id':system_slice_ids.keys()})
+
+        result = {
+            'Sites': Sites(self.api, {'peer_id': None}),
+            'Keys': Keys(self.api, {'peer_id': None}),
+            'Nodes': nodes,
+            'Persons': persons,
+            'Slices': slices,
             }
-        
+
+        if isinstance(self.caller, Peer):
+            result['PeerNodes'] = Nodes(self.api, {'peer_id': self.caller['peer_id']})
+
+        result['db_time'] = time.time() - start
+
+        return result