2 # Thierry Parmentelat - INRIA
5 from PLC.Faults import *
6 from PLC.Method import Method
7 from PLC.Parameter import Parameter, Mixed
8 from PLC.Auth import Auth
10 from PLC.Sites import Site, Sites
11 from PLC.Nodes import Node, Nodes
12 from PLC.TagTypes import TagType, TagTypes
13 from PLC.NodeTags import NodeTag, NodeTags
15 from PLC.AuthorizeHelpers import AuthorizeHelpers
17 class DeleteNodeTag(Method):
19 Deletes the specified node tag
21 Admins have full access. Non-admins need to
22 (1) have at least one of the roles attached to the tagtype,
23 and (2) belong in the same site as the tagged subject.
25 Returns 1 if successful, faults otherwise.
28 roles = ['admin', 'pi', 'user', 'tech']
32 NodeTag.fields['node_tag_id']
35 returns = Parameter(int, '1 if successful')
37 def call(self, auth, node_tag_id):
38 node_tags = NodeTags(self.api, [node_tag_id])
40 raise PLCInvalidArgument, "No such node tag %r"%node_tag_id
41 node_tag = node_tags[0]
43 tag_type_id = node_tag['tag_type_id']
44 tag_type = TagTypes (self.api,[tag_type_id])[0]
46 nodes = Nodes (self.api, node_tag['node_id'])
48 raise PLCInvalidArgument, "No such node %d"%node_tag['node_id']
51 # check authorizations
52 if 'admin' in self.caller['roles']:
54 elif not AuthorizeHelpers.caller_may_access_tag_type (self.api, self.caller, tag_type):
55 raise PLCPermissionDenied, "%s, forbidden tag %s"%(self.name,tag_type['tagname'])
56 elif AuthorizeHelpers.node_belongs_to_person (self.api, node, self.caller):
59 raise PLCPermissionDenied, "%s: you must belong in the same site as subject node"%self.name
62 self.object_ids = [node_tag['node_tag_id']]