-- Prosody IM
--- Copyright (C) 2008-2009 Matthew Wild
--- Copyright (C) 2008-2009 Waqas Hussain
+-- 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 jid_bare = require "util.jid".bare;
local jid_split = require "util.jid".split;
local st = require "util.stanza";
-local hosts = hosts;
-local user_exists = require "core.usermanager".user_exists;
local is_contact_subscribed = require "core.rostermanager".is_contact_subscribed;
-local pairs, ipairs = pairs, ipairs;
+local pairs = pairs;
local next = next;
local type = type;
-local load_roster = require "core.rostermanager".load_roster;
-local sha1 = require "util.hashes".sha1;
-local base64 = require "util.encodings".base64.encode;
+local calculate_hash = require "util.caps".calculate_hash;
+local core_post_stanza = prosody.core_post_stanza;
+local bare_sessions = prosody.bare_sessions;
+-- Used as canonical 'empty table'
local NULL = {};
+-- data[user_bare_jid][node] = item_stanza
local data = {};
+--- recipients[user_bare_jid][contact_full_jid][subscribed_node] = true
local recipients = {};
+-- hash_map[hash][subscribed_nodes] = true
local hash_map = {};
module.save = function()
hash_map = state.hash_map or {};
end
-module:add_identity("pubsub", "pep", "Prosody");
+module:add_identity("pubsub", "pep", module:get_option_string("name", "Prosody"));
module:add_feature("http://jabber.org/protocol/pubsub#publish");
local function subscription_presence(user_bare, recipient)
local recipient_bare = jid_bare(recipient);
if (recipient_bare == user_bare) then return true end
- local item = load_roster(jid_split(user_bare))[recipient_bare];
- return item and (item.subscription == 'from' or item.subscription == 'both');
+ local username, host = jid_split(user_bare);
+ return is_contact_subscribed(username, host, recipient_bare);
end
local function publish(session, node, id, item)
end
else
if not user_data then user_data = {}; data[bare] = user_data; end
- user_data[node] = {id or "1", item};
+ user_data[node] = {id, item};
end
-- broadcast
-- inbound presence to bare JID recieved
local origin, stanza = event.origin, event.stanza;
local user = stanza.attr.to or (origin.username..'@'..origin.host);
+ local t = stanza.attr.type;
+ local self = not stanza.attr.to;
+
+ -- Only cache subscriptions if user is online
+ if not bare_sessions[user] then return; end
- if not stanza.attr.to or subscription_presence(user, stanza.attr.from) then
- local recipient = stanza.attr.from;
- local current = recipients[user] and recipients[user][recipient];
- local hash = get_caps_hash_from_presence(stanza, current);
- if current == hash then return; end
- if not hash then
- if recipients[user] then recipients[user][recipient] = nil; end
- else
- recipients[user] = recipients[user] or {};
- if hash_map[hash] then
- recipients[user][recipient] = hash_map[hash];
- publish_all(user, recipient, origin);
+ if not t then -- available presence
+ if self or subscription_presence(user, stanza.attr.from) then
+ local recipient = stanza.attr.from;
+ local current = recipients[user] and recipients[user][recipient];
+ local hash = get_caps_hash_from_presence(stanza, current);
+ if current == hash or (current and current == hash_map[hash]) then return; end
+ if not hash then
+ if recipients[user] then recipients[user][recipient] = nil; end
else
- recipients[user][recipient] = hash;
- origin.send(
- st.stanza("iq", {from=stanza.attr.to, to=stanza.attr.from, id="disco", type="get"})
- :query("http://jabber.org/protocol/disco#info")
- );
+ recipients[user] = recipients[user] or {};
+ if hash_map[hash] then
+ recipients[user][recipient] = hash_map[hash];
+ publish_all(user, recipient, origin);
+ else
+ recipients[user][recipient] = hash;
+ local from_bare = origin.type == "c2s" and origin.username.."@"..origin.host;
+ if self or origin.type ~= "c2s" or (recipients[from_bare] and recipients[from_bare][origin.full_jid]) ~= hash then
+ -- COMPAT from ~= stanza.attr.to because OneTeam and Asterisk 1.8 can't deal with missing from attribute
+ origin.send(
+ st.stanza("iq", {from=user, to=stanza.attr.from, id="disco", type="get"})
+ :query("http://jabber.org/protocol/disco#info")
+ );
+ end
+ end
+ end
+ end
+ elseif t == "unavailable" then
+ if recipients[user] then recipients[user][stanza.attr.from] = nil; end
+ elseif not self and t == "unsubscribe" then
+ local from = jid_bare(stanza.attr.from);
+ local subscriptions = recipients[user];
+ if subscriptions then
+ for subscriber in pairs(subscriptions) do
+ if jid_bare(subscriber) == from then
+ recipients[user][subscriber] = nil;
+ end
end
end
end
local node = payload.attr.node;
payload = payload.tags[1];
if payload and payload.name == "item" then -- <item>
- local id = payload.attr.id;
+ local id = payload.attr.id or "1";
+ payload.attr.id = id;
session.send(st.reply(stanza));
publish(session, node, id, st.clone(payload));
return true;
end
end);
-local function calculate_hash(disco_info)
- local identities, features, extensions = {}, {}, {};
- for _, tag in pairs(disco_info) do
- if tag.name == "identity" then
- table.insert(identities, (tag.attr.category or "").."\0"..(tag.attr.type or "").."\0"..(tag.attr["xml:lang"] or "").."\0"..(tag.attr.name or ""));
- elseif tag.name == "feature" then
- table.insert(features, tag.attr.var or "");
- elseif tag.name == "x" and tag.attr.xmlns == "jabber:x:data" then
- local form = {};
- local FORM_TYPE;
- for _, field in pairs(tag.tags) do
- if field.name == "field" and field.attr.var then
- local values = {};
- for _, val in pairs(field.tags) do
- val = #val.tags == 0 and table.concat(val); -- FIXME use get_text?
- if val then table.insert(values, val); end
- end
- table.sort(values);
- if field.attr.var == "FORM_TYPE" then
- FORM_TYPE = values[1];
- elseif #values > 0 then
- table.insert(form, field.attr.var.."\0"..table.concat(values, "<"));
- else
- table.insert(form, field.attr.var);
- end
- end
- end
- table.sort(form);
- form = table.concat(form, "<");
- if FORM_TYPE then form = FORM_TYPE.."\0"..form; end
- table.insert(extensions, form);
- end
- end
- table.sort(identities);
- table.sort(features);
- table.sort(extensions);
- if #identities > 0 then identities = table.concat(identities, "<"):gsub("%z", "/").."<"; else identities = ""; end
- if #features > 0 then features = table.concat(features, "<").."<"; else features = ""; end
- if #extensions > 0 then extensions = table.concat(extensions, "<"):gsub("%z", "<").."<"; else extensions = ""; end
- local S = identities..features..extensions;
- local ver = base64(sha1(S));
- return ver, S;
-end
-
-module:hook("iq/bare/disco", function(event)
+module:hook("iq-result/bare/disco", function(event)
local session, stanza = event.origin, event.stanza;
if stanza.attr.type == "result" then
local disco = stanza.tags[1];
if disco and disco.name == "query" and disco.attr.xmlns == "http://jabber.org/protocol/disco#info" then
-- Process disco response
+ local self = not stanza.attr.to;
local user = stanza.attr.to or (session.username..'@'..session.host);
local contact = stanza.attr.from;
local current = recipients[user] and recipients[user][contact];
end
end
hash_map[ver] = notify; -- update hash map
+ if self then
+ for jid, item in pairs(session.roster) do -- for all interested contacts
+ if item.subscription == "both" or item.subscription == "from" then
+ if not recipients[jid] then recipients[jid] = {}; end
+ recipients[jid][contact] = notify;
+ publish_all(jid, contact, session);
+ end
+ end
+ end
recipients[user][contact] = notify; -- set recipient's data to calculated data
-- send messages to recipient
publish_all(user, contact, session);
end
end
end);
+
+module:hook("account-disco-info", function(event)
+ local stanza = event.stanza;
+ stanza:tag('identity', {category='pubsub', type='pep'}):up();
+ stanza:tag('feature', {var='http://jabber.org/protocol/pubsub#publish'}):up();
+end);
+
+module:hook("account-disco-items", function(event)
+ local stanza = event.stanza;
+ local bare = stanza.attr.to;
+ local user_data = data[bare];
+
+ if user_data then
+ for node, _ in pairs(user_data) do
+ stanza:tag('item', {jid=bare, node=node}):up(); -- TODO we need to handle queries to these nodes
+ end
+ end
+end);
+
+module:hook("resource-unbind", function (event)
+ local user_bare_jid = event.session.username.."@"..event.session.host;
+ if not bare_sessions[user_bare_jid] then -- User went offline
+ -- We don't need this info cached anymore, clear it.
+ recipients[user_bare_jid] = nil;
+ end
+end);