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-- Prosody IM |
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-- Copyright (C) 2010 Dai Zhiwei |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local st = require "util.stanza"; |
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local dm = require "util.datamanager"; |
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local jid = require "util.jid"; |
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local datetime = require "util.datetime"; |
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local PREFS_DIR = "archive_muc_prefs"; |
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local ARCHIVE_DIR = "archive_muc"; |
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local HOST = 'localhost'; |
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local AUTO_ARCHIVING_ENABLED = true; |
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module:add_feature("urn:xmpp:archive#preferences"); |
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module:add_feature("urn:xmpp:archive#management"); |
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------------------------------------------------------------ |
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-- Utils |
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------------------------------------------------------------ |
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local function load_prefs(node, host) |
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return st.deserialize(dm.load(node, host, PREFS_DIR)); |
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end |
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local function store_prefs(data, node, host) |
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dm.store(node, host, PREFS_DIR, st.preserialize(data)); |
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end |
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local function date_time(localtime) |
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return datetime.datetime(localtime); |
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end |
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local function match_jid(rule, id) |
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return not rule or jid.compare(id, rule); |
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end |
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local function is_earlier(start, coll_start) |
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return not start or start <= coll_start; |
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end |
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local function is_later(endtime, coll_start) |
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return not endtime or endtime >= coll_start; |
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end |
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------------------------------------------------------------ |
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-- Preferences |
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------------------------------------------------------------ |
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local function preferences_handler(event) |
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local origin, stanza = event.origin, event.stanza; |
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module:log("debug", "-- Enter muc preferences_handler()"); |
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module:log("debug", "-- muc pref:\n%s", tostring(stanza)); |
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if stanza.attr.type == "get" then |
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local data = load_prefs(origin.username, origin.host); |
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if data then |
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origin.send(st.reply(stanza):add_child(data)); |
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else |
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origin.send(st.reply(stanza)); |
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end |
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elseif stanza.attr.type == "set" then |
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local node, host = origin.username, origin.host; |
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if stanza.tags[1] and stanza.tags[1].name == 'prefs' then |
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store_prefs(stanza.tags[1], node, host); |
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origin.send(st.reply(stanza)); |
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local user = bare_sessions[node.."@"..host]; |
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local push = st.iq({type="set"}); |
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push:add_child(stanza.tags[1]); |
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for _, res in pairs(user and user.sessions or NULL) do -- broadcast to all resources |
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if res.presence then -- to resource |
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push.attr.to = res.full_jid; |
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res.send(push); |
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end |
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end |
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end |
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end |
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return true; |
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end |
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------------------------------------------------------------ |
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-- Archive Management |
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------------------------------------------------------------ |
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local function management_handler(event) |
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module:log("debug", "-- Enter muc management_handler()"); |
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local origin, stanza = event.origin, event.stanza; |
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local node, host = origin.username, origin.host; |
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local data = dm.list_load(node, host, ARCHIVE_DIR); |
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local elem = stanza.tags[1]; |
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local resset = {} |
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if data then |
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for i = #data, 1, -1 do |
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local forwarded = st.deserialize(data[i]); |
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local res = (match_jid(elem.attr["with"], forwarded.tags[2].attr.from) |
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or match_jid(elem.attr["with"], forwarded.tags[2].attr.to)) |
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and is_earlier(elem.attr["start"], forwarded.tags[1].attr["stamp"]) |
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and is_later(elem.attr["end"], forwarded.tags[1].attr["stamp"]); |
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if res then |
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table.insert(resset, forwarded); |
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end |
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end |
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for i = #resset, 1, -1 do |
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local res = st.message({to = stanza.attr.from, id=st.new_id()}); |
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res:add_child(resset[i]); |
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origin.send(res); |
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end |
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end |
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origin.send(st.reply(stanza)); |
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return true; |
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end |
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------------------------------------------------------------ |
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-- Message Handler |
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------------------------------------------------------------ |
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local function is_in(list, jid) |
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for _,v in ipairs(list) do |
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if match_jid(v:get_text(), jid) then -- JID Matching |
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return true; |
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end |
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end |
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return false; |
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end |
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local function is_in_roster(node, host, jid) |
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-- TODO |
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return true; |
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end |
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local function apply_pref(node, host, jid) |
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local pref = load_prefs(node, host); |
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if not pref then |
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return AUTO_ARCHIVING_ENABLED; |
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end |
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local always = pref:child_with_name('always'); |
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if always and is_in(always, jid) then |
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return true; |
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end |
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local never = pref:child_with_name('never'); |
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if never and is_in(never, jid) then |
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return false; |
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end |
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local default = pref.attr['default']; |
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if default == 'roster' then |
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return is_in_roster(node, host, jid); |
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elseif default == 'always' then |
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return true; |
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elseif default == 'never' then |
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return false; |
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end |
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return AUTO_ARCHIVING_ENABLED; |
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end |
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local function store_msg(msg, node, host) |
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local forwarded = st.stanza('forwarded', {xmlns='urn:xmpp:forward:tmp'}); |
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forwarded:tag('delay', {xmlns='urn:xmpp:delay',stamp=date_time()}):up(); |
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forwarded:add_child(msg); |
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dm.list_append(node, host, ARCHIVE_DIR, st.preserialize(forwarded)); |
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end |
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local function msg_handler(data) |
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module:log("debug", "-- Enter muc msg_handler()"); |
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local origin, stanza = data.origin, data.stanza; |
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local body = stanza:child_with_name("body"); |
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if body then |
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local from_node, from_host = jid.split(stanza.attr.from); |
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local to_node, to_host = jid.split(stanza.attr.to); |
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-- FIXME only archive messages of users on this host |
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if from_host == HOST and apply_pref(from_node, from_host, stanza.attr.to) then |
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store_msg(stanza, from_node, from_host); |
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end |
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if to_host == HOST and apply_pref(to_node, to_host, stanza.attr.from) then |
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store_msg(stanza, to_node, to_host); |
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end |
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end |
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return nil; |
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end |
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-- Preferences |
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module:hook("iq/self/urn:xmpp:archive#preferences:prefs", preferences_handler); |
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-- Archive management |
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module:hook("iq/self/urn:xmpp:archive#management:query", management_handler); |
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module:hook("message/full", msg_handler, 20); |
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module:hook("message/bare", msg_handler, 20); |
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-- TODO prefs: [1] = "\n "; |