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core.rostermanager/mod_roster: Support for roster versioning

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This commit is contained in:
Matthew Wild 2009-03-23 00:31:29 +00:00
parent 39ac97e87a
commit 000fa4bb34
2 changed files with 30 additions and 15 deletions
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33
plugins/mod_roster.lua
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@ -12,6 +12,7 @@ local st = require "util.stanza"
local jid_split = require "util.jid".split;
local t_concat = table.concat;
local tostring = tostring;
local handle_presence = require "core.presencemanager".handle_presence;
local rm_remove_from_roster = require "core.rostermanager".remove_from_roster;
@ -27,19 +28,26 @@ module:add_iq_handler("c2s", "jabber:iq:roster",
if stanza.attr.type == "get" then
local roster = st.reply(stanza)
:query("jabber:iq:roster");
for jid in pairs(session.roster) do
if jid ~= "pending" then
roster:tag("item", {
jid = jid,
subscription = session.roster[jid].subscription,
ask = session.roster[jid].ask,
name = session.roster[jid].name,
});
for group in pairs(session.roster[jid].groups) do
roster:tag("group"):text(group):up();
local ver = stanza.tags[1].attr.ver
if (not ver) or tonumber(ver) ~= (session.roster[false].version or 1) then
-- Client does not support versioning, or has stale roster
for jid in pairs(session.roster) do
if jid ~= "pending" and jid then
roster:tag("item", {
jid = jid,
subscription = session.roster[jid].subscription,
ask = session.roster[jid].ask,
name = session.roster[jid].name,
});
for group in pairs(session.roster[jid].groups) do
roster:tag("group"):text(group):up();
end
roster:up(); -- move out from item
end
roster:up(); -- move out from item
end
roster.tags[1].attr.ver = tostring(session.roster[false].version or "1");
end
session.send(roster);
session.interested = true; -- resource is interested in roster updates
@ -47,7 +55,8 @@ module:add_iq_handler("c2s", "jabber:iq:roster",
elseif stanza.attr.type == "set" then
local query = stanza.tags[1];
if #query.tags == 1 and query.tags[1].name == "item"
and query.tags[1].attr.xmlns == "jabber:iq:roster" and query.tags[1].attr.jid
and query.tags[1].attr.xmlns == "jabber:iq:roster" and query.tags[1].attr.jid
-- Protection against overwriting roster.pending, until we move it
and query.tags[1].attr.jid ~= "pending" then
local item = query.tags[1];
local from_node, from_host = jid_split(stanza.attr.from);