2 -- Copyright (C) 2008-2009 Matthew Wild
3 -- Copyright (C) 2008-2009 Waqas Hussain
5 -- This project is MIT/X11 licensed. Please see the
6 -- COPYING file in the source package for more information.
11 local st = require "util.stanza"
13 local jid_split = require "util.jid".split;
14 local jid_prep = require "util.jid".prep;
15 local t_concat = table.concat;
16 local tostring = tostring;
18 local handle_presence = require "core.presencemanager".handle_presence;
19 local rm_remove_from_roster = require "core.rostermanager".remove_from_roster;
20 local rm_add_to_roster = require "core.rostermanager".add_to_roster;
21 local rm_roster_push = require "core.rostermanager".roster_push;
22 local core_route_stanza = core_route_stanza;
24 module:add_feature("jabber:iq:roster");
26 local rosterver_stream_feature = st.stanza("ver", {xmlns="urn:xmpp:features:rosterver"}):tag("optional"):up();
27 module:add_event_hook("stream-features",
28 function (session, features)
29 if session.username then
30 features:add_child(rosterver_stream_feature);
34 module:add_iq_handler("c2s", "jabber:iq:roster",
35 function (session, stanza)
36 if stanza.tags[1].name == "query" then
37 if stanza.attr.type == "get" then
38 local roster = st.reply(stanza)
39 :query("jabber:iq:roster");
41 local ver = stanza.tags[1].attr.ver
43 if (not ver) or tonumber(ver) ~= (session.roster[false].version or 1) then
44 -- Client does not support versioning, or has stale roster
45 for jid in pairs(session.roster) do
46 if jid ~= "pending" and jid then
49 subscription = session.roster[jid].subscription,
50 ask = session.roster[jid].ask,
51 name = session.roster[jid].name,
53 for group in pairs(session.roster[jid].groups) do
54 roster:tag("group"):text(group):up();
56 roster:up(); -- move out from item
59 roster.tags[1].attr.ver = tostring(session.roster[false].version or "1");
62 session.interested = true; -- resource is interested in roster updates
64 elseif stanza.attr.type == "set" then
65 local query = stanza.tags[1];
66 if #query.tags == 1 and query.tags[1].name == "item"
67 and query.tags[1].attr.xmlns == "jabber:iq:roster" and query.tags[1].attr.jid
68 -- Protection against overwriting roster.pending, until we move it
69 and query.tags[1].attr.jid ~= "pending" then
70 local item = query.tags[1];
71 local from_node, from_host = jid_split(stanza.attr.from);
72 local from_bare = from_node and (from_node.."@"..from_host) or from_host; -- bare JID
73 local jid = jid_prep(item.attr.jid);
74 local node, host, resource = jid_split(jid);
75 if not resource and host then
76 if jid ~= from_node.."@"..from_host then
77 if item.attr.subscription == "remove" then
78 local r_item = session.roster[jid];
80 local success, err_type, err_cond, err_msg = rm_remove_from_roster(session, jid);
82 session.send(st.reply(stanza));
83 rm_roster_push(from_node, from_host, jid);
84 local to_bare = node and (node.."@"..host) or host; -- bare JID
85 if r_item.subscription == "both" or r_item.subscription == "from" then
86 handle_presence(session, st.presence({type="unsubscribed"}), from_bare, to_bare,
87 core_route_stanza, false);
88 elseif r_item.subscription == "both" or r_item.subscription == "to" then
89 handle_presence(session, st.presence({type="unsubscribe"}), from_bare, to_bare,
90 core_route_stanza, false);
93 session.send(st.error_reply(stanza, err_type, err_cond, err_msg));
96 session.send(st.error_reply(stanza, "modify", "item-not-found"));
99 local r_item = {name = item.attr.name, groups = {}};
100 if r_item.name == "" then r_item.name = nil; end
101 if session.roster[jid] then
102 r_item.subscription = session.roster[jid].subscription;
103 r_item.ask = session.roster[jid].ask;
105 r_item.subscription = "none";
107 for _, child in ipairs(item) do
108 if child.name == "group" then
109 local text = t_concat(child);
110 if text and text ~= "" then
111 r_item.groups[text] = true;
115 local success, err_type, err_cond, err_msg = rm_add_to_roster(session, jid, r_item);
117 session.send(st.reply(stanza));
118 rm_roster_push(from_node, from_host, jid);
120 session.send(st.error_reply(stanza, err_type, err_cond, err_msg));
124 session.send(st.error_reply(stanza, "cancel", "not-allowed"));
127 session.send(st.error_reply(stanza, "modify", "bad-request")); -- FIXME what's the correct error?
130 session.send(st.error_reply(stanza, "modify", "bad-request"));