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-- 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 componentmanager_get_children = require "core.componentmanager".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");
-- Handle disco requests to the server
local function build_server_disco_info(stanza)
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
stanza: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
stanza:tag("feature", {var=feature}):up();
done[feature] = true;
end
end
end
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 ~= "" then return; end -- TODO fire event?
local reply = st.reply(stanza):query("http://jabber.org/protocol/disco#info");
build_server_disco_info(reply);
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(componentmanager_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);
-- Server caps hash calculation
local caps_hash_feature;
local function recalculate_server_caps()
local caps_hash = calculate_hash(st.stanza());
caps_hash_feature = st.stanza("c", {
xmlns = "http://jabber.org/protocol/caps";
hash = "sha-1";
node = "http://prosody.im";
ver = caps_hash;
});
end
recalculate_server_caps();
module:hook("item-added/identity", recalculate_server_caps);
module:hook("item-added/feature", recalculate_server_caps);
module:hook("stream-features", function (event)
if caps_hash_feature then
event.features:add_child(caps_hash_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", { session = 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", { session = origin, stanza = reply });
origin.send(reply);
return true;
end
end);
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