diff options
Diffstat (limited to 'plugins/mod_disco.lua')
| -rw-r--r-- | plugins/mod_disco.lua | 60 |
1 files changed, 51 insertions, 9 deletions
diff --git a/plugins/mod_disco.lua b/plugins/mod_disco.lua index ee0043f1..8bb0afec 100644 --- a/plugins/mod_disco.lua +++ b/plugins/mod_disco.lua @@ -11,6 +11,7 @@ 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 @@ -35,27 +36,61 @@ module:add_identity("server", "im", "Prosody"); -- FIXME should be in the non-ex module:add_feature("http://jabber.org/protocol/disco#info"); module:add_feature("http://jabber.org/protocol/disco#items"); -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"); +-- 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 - reply:tag("identity", identity):up(); + 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 - reply:tag("feature", {var=feature}):up(); + 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); + +-- 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); @@ -75,6 +110,13 @@ module:hook("iq/host/http://jabber.org/protocol/disco#items:query", function(eve origin.send(reply); return true; end); + +-- Handle caps stream feature +module:hook("stream-features", function (event) + event.features:add_child(get_server_caps_feature()); +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 |