X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=trunk%2FPLC%2FMethods%2FGetNodes.py;fp=trunk%2FPLC%2FMethods%2FGetNodes.py;h=8e2931a1f424909039a500059c3a6cfd26500577;hb=5a4c1b1278ffa01e630fde47f7c54888ed20a576;hp=0000000000000000000000000000000000000000;hpb=cee5ab52df1c9f38b6eaff2dd354cb22f59028c7;p=plcapi.git

diff --git a/trunk/PLC/Methods/GetNodes.py b/trunk/PLC/Methods/GetNodes.py
new file mode 100644
index 0000000..8e2931a
--- /dev/null
+++ b/trunk/PLC/Methods/GetNodes.py
@@ -0,0 +1,79 @@
+from PLC.Faults import *
+from PLC.Method import Method
+from PLC.Parameter import Parameter, Mixed
+from PLC.Filter import Filter
+from PLC.Nodes import Node, Nodes
+from PLC.Persons import Person, Persons
+from PLC.Auth import Auth
+
+class GetNodes(Method):
+    """
+    Returns an array of structs containing details about nodes. If
+    node_filter is specified and is an array of node identifiers or
+    hostnames, or a struct of node attributes, only nodes matching the
+    filter will be returned. If return_fields is specified, only the
+    specified details will be returned.
+
+    Some fields may only be viewed by admins.
+    """
+
+    roles = ['admin', 'pi', 'user', 'tech', 'node', 'anonymous']
+
+    accepts = [
+        Auth(),
+        Mixed([Mixed(Node.fields['node_id'],
+                     Node.fields['hostname'])],
+	      Parameter(str,"hostname"),
+              Parameter(int,"node_id"),
+              Filter(Node.fields)),
+        Parameter([str], "List of fields to return", nullok = True),
+        ]
+
+    returns = [Node.fields]
+
+
+    def call(self, auth, node_filter = None, return_fields = None):
+        
+	# Must query at least slice_ids_whitelist
+	if return_fields is not None:
+	    added_fields = set(['slice_ids_whitelist', 'site_id']).difference(return_fields)
+	    return_fields += added_fields
+	else:
+	    added_fields =[]	
+
+	# Get node information
+        nodes = Nodes(self.api, node_filter, return_fields)
+
+        # Remove admin only fields
+        if not isinstance(self.caller, Person) or \
+           'admin' not in self.caller['roles']:
+	    slice_ids = set()
+	    site_ids = set()
+	    if self.caller:
+	        slice_ids.update(self.caller['slice_ids'])
+		site_ids.update(self.caller['site_ids'])
+
+	    # if node has whitelist, only return it if users is at
+	    # the same site or user has a slice on the whitelist 
+            for node in nodes[:]:
+		if 'site_id' in node and \
+		   site_ids.intersection([node['site_id']]):
+		    continue	
+	        if 'slice_ids_whitelist' in node and \
+		   node['slice_ids_whitelist'] and \
+		   not slice_ids.intersection(node['slice_ids_whitelist']):
+	 	    nodes.remove(node)
+
+	    # remove remaining admin only fields
+            for node in nodes:    
+		for field in ['boot_nonce', 'key', 'session', 'root_person_ids']:
+                    if field in node:
+                        del node[field]
+	
+	# remove added fields if not specified
+	if added_fields:
+	    for node in nodes:
+		for field in added_fields:
+		    del node[field]	
+
+        return nodes