Fri, 17 Dec 2010 17:28:05 +0100
util.stanza: Iterate on childtags instead of all childs.
-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local get_children = require "core.hostmanager".get_children; local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed; local jid_split = require "util.jid".split; local jid_bare = require "util.jid".bare; local st = require "util.stanza" local calculate_hash = require "util.caps".calculate_hash; local disco_items = module:get_option("disco_items") or {}; do -- validate disco_items for _, item in ipairs(disco_items) do local err; if type(item) ~= "table" then err = "item is not a table"; elseif type(item[1]) ~= "string" then err = "item jid is not a string"; elseif item[2] and type(item[2]) ~= "string" then err = "item name is not a string"; end if err then module:log("error", "option disco_items is malformed: %s", err); disco_items = {}; -- TODO clean up data instead of removing it? break; end end end module:add_identity("server", "im", "Prosody"); -- FIXME should be in the non-existing mod_router module:add_feature("http://jabber.org/protocol/disco#info"); module:add_feature("http://jabber.org/protocol/disco#items"); -- Generate and cache disco result and caps hash local _cached_server_disco_info, _cached_server_caps_feature, _cached_server_caps_hash; local function build_server_disco_info() local query = st.stanza("query", { xmlns = "http://jabber.org/protocol/disco#info" }); local done = {}; for _,identity in ipairs(module:get_host_items("identity")) do local identity_s = identity.category.."\0"..identity.type; if not done[identity_s] then query:tag("identity", identity):up(); done[identity_s] = true; end end for _,feature in ipairs(module:get_host_items("feature")) do if not done[feature] then query:tag("feature", {var=feature}):up(); done[feature] = true; end end _cached_server_disco_info = query; _cached_server_caps_hash = calculate_hash(query); _cached_server_caps_feature = st.stanza("c", { xmlns = "http://jabber.org/protocol/caps"; hash = "sha-1"; node = "http://prosody.im"; ver = _cached_server_caps_hash; }); end local function clear_disco_cache() _cached_server_disco_info, _cached_server_caps_feature, _cached_server_caps_hash = nil, nil, nil; end local function get_server_disco_info() if not _cached_server_disco_info then build_server_disco_info(); end return _cached_server_disco_info; end local function get_server_caps_feature() if not _cached_server_caps_feature then build_server_disco_info(); end return _cached_server_caps_feature; end local function get_server_caps_hash() if not _cached_server_caps_hash then build_server_disco_info(); end return _cached_server_caps_hash; end module:hook("item-added/identity", clear_disco_cache); module:hook("item-added/feature", clear_disco_cache); module:hook("item-removed/identity", clear_disco_cache); module:hook("item-removed/feature", clear_disco_cache); -- Handle disco requests to the server module:hook("iq/host/http://jabber.org/protocol/disco#info:query", function(event) local origin, stanza = event.origin, event.stanza; if stanza.attr.type ~= "get" then return; end local node = stanza.tags[1].attr.node; if node and node ~= "" and node ~= "http://prosody.im#"..get_server_caps_hash() then return; end -- TODO fire event? local reply_query = get_server_disco_info(); reply_query.node = node; local reply = st.reply(stanza):add_child(reply_query); origin.send(reply); return true; end); module:hook("iq/host/http://jabber.org/protocol/disco#items:query", function(event) local origin, stanza = event.origin, event.stanza; if stanza.attr.type ~= "get" then return; end local node = stanza.tags[1].attr.node; if node and node ~= "" then return; end -- TODO fire event? local reply = st.reply(stanza):query("http://jabber.org/protocol/disco#items"); for jid in pairs(get_children(module.host)) do reply:tag("item", {jid = jid}):up(); end for _, item in ipairs(disco_items) do reply:tag("item", {jid=item[1], name=item[2]}):up(); end origin.send(reply); return true; end); -- Handle caps stream feature module:hook("stream-features", function (event) if event.origin.type == "c2s" then event.features:add_child(get_server_caps_feature()); end end); -- Handle disco requests to user accounts module:hook("iq/bare/http://jabber.org/protocol/disco#info:query", function(event) local origin, stanza = event.origin, event.stanza; if stanza.attr.type ~= "get" then return; end local node = stanza.tags[1].attr.node; if node and node ~= "" then return; end -- TODO fire event? local username = jid_split(stanza.attr.to) or origin.username; if not stanza.attr.to or is_contact_subscribed(username, module.host, jid_bare(stanza.attr.from)) then local reply = st.reply(stanza):tag('query', {xmlns='http://jabber.org/protocol/disco#info'}); if not reply.attr.from then reply.attr.from = origin.username.."@"..origin.host; end -- COMPAT To satisfy Psi when querying own account module:fire_event("account-disco-info", { origin = origin, stanza = reply }); origin.send(reply); return true; end end); module:hook("iq/bare/http://jabber.org/protocol/disco#items:query", function(event) local origin, stanza = event.origin, event.stanza; if stanza.attr.type ~= "get" then return; end local node = stanza.tags[1].attr.node; if node and node ~= "" then return; end -- TODO fire event? local username = jid_split(stanza.attr.to) or origin.username; if not stanza.attr.to or is_contact_subscribed(username, module.host, jid_bare(stanza.attr.from)) then local reply = st.reply(stanza):tag('query', {xmlns='http://jabber.org/protocol/disco#items'}); if not reply.attr.from then reply.attr.from = origin.username.."@"..origin.host; end -- COMPAT To satisfy Psi when querying own account module:fire_event("account-disco-items", { origin = origin, stanza = reply }); origin.send(reply); return true; end end);