-- 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 pairs, ipairs = pairs, ipairs;
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 recipients = {};
local hash_map = {};
+module.save = function()
+ return { data = data, recipients = recipients, hash_map = hash_map };
+end
+module.restore = function(state)
+ data = state.data or {};
+ recipients = state.recipients or {};
+ hash_map = state.hash_map or {};
+end
+
module:add_identity("pubsub", "pep", "Prosody");
module:add_feature("http://jabber.org/protocol/pubsub#publish");
-local function publish(session, node, item)
- local disable = #item.tags ~= 1 or #item.tags[1].tags == 0;
+local function subscription_presence(user_bare, recipient)
+ local recipient_bare = jid_bare(recipient);
+ if (recipient_bare == user_bare) then return true end
+ local username, host = jid_split(user_bare);
+ return is_contact_subscribed(username, host, recipient_bare);
+end
+
+local function publish(session, node, id, item)
+ item.attr.xmlns = nil;
+ local disable = #item.tags ~= 1 or #item.tags[1] == 0;
if #item.tags == 0 then item.name = "retract"; end
local bare = session.username..'@'..session.host;
local stanza = st.message({from=bare, type='headline'})
end
else
if not user_data then user_data = {}; data[bare] = user_data; end
- user_data[node] = stanza;
+ user_data[node] = {id or "1", item};
end
-
+
-- broadcast
for recipient, notify in pairs(recipients[bare] or NULL) do
if notify[node] then
local notify = recipients[user] and recipients[user][recipient];
if d and notify then
for node in pairs(notify) do
- local message = d[node];
- if message then
- message.attr.to = recipient;
- session.send(message);
+ if d[node] then
+ local id, item = unpack(d[node]);
+ session.send(st.message({from=user, to=recipient, type='headline'})
+ :tag('event', {xmlns='http://jabber.org/protocol/pubsub#event'})
+ :tag('items', {node=node})
+ :add_child(item)
+ :up()
+ :up());
end
end
end
module:hook("presence/bare", function(event)
-- inbound presence to bare JID recieved
local origin, stanza = event.origin, event.stanza;
-
local user = stanza.attr.to or (origin.username..'@'..origin.host);
- local bare = jid_bare(stanza.attr.from);
- local item = load_roster(jid_split(user))[bare];
- if not stanza.attr.to or (item and (item.subscription == 'from' or item.subscription == 'both')) 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);
+ local t = stanza.attr.type;
+
+ if not t then -- available presence
+ 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][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;
+ origin.send(
+ st.stanza("iq", {from=stanza.attr.to, to=stanza.attr.from, id="disco", type="get"})
+ :query("http://jabber.org/protocol/disco#info")
+ );
+ end
end
end
+ elseif t == "unavailable" then
+ if recipients[user] then recipients[user][stanza.attr.from] = nil; end
end
end, 10);
module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event)
local session, stanza = event.origin, event.stanza;
+ local payload = stanza.tags[1];
+
if stanza.attr.type == 'set' and (not stanza.attr.to or jid_bare(stanza.attr.from) == stanza.attr.to) then
- local payload = stanza.tags[1];
- if payload.name == 'pubsub' then -- <pubsub xmlns='http://jabber.org/protocol/pubsub'>
+ payload = payload.tags[1];
+ if payload and (payload.name == 'publish' or payload.name == 'retract') and payload.attr.node then -- <publish node='http://jabber.org/protocol/tune'>
+ local node = payload.attr.node;
+ payload = payload.tags[1];
+ if payload and payload.name == "item" then -- <item>
+ local id = payload.attr.id;
+ session.send(st.reply(stanza));
+ publish(session, node, id, st.clone(payload));
+ return true;
+ end
+ end
+ elseif stanza.attr.type == 'get' then
+ local user = stanza.attr.to and jid_bare(stanza.attr.to) or session.username..'@'..session.host;
+ if subscription_presence(user, stanza.attr.from) then
+ local user_data = data[user];
+ local node, requested_id;
payload = payload.tags[1];
- if payload and (payload.name == 'publish' or payload.name == 'retract') and payload.attr.node then -- <publish node='http://jabber.org/protocol/tune'>
- local node = payload.attr.node;
- payload = payload.tags[1];
- if payload then -- <item>
- publish(session, node, payload);
- session.send(st.reply(stanza));
+ if payload and payload.name == 'items' then
+ node = payload.attr.node;
+ local item = payload.tags[1];
+ if item and item.name == "item" then
+ requested_id = item.attr.id;
+ end
+ end
+ if node and user_data and user_data[node] then -- Send the last item
+ local id, item = unpack(user_data[node]);
+ if not requested_id or id == requested_id then
+ local stanza = st.reply(stanza)
+ :tag('pubsub', {xmlns='http://jabber.org/protocol/pubsub'})
+ :tag('items', {node=node})
+ :add_child(item)
+ :up()
+ :up();
+ session.send(stanza);
+ return true;
+ else -- requested item doesn't exist
+ local stanza = st.reply(stanza)
+ :tag('pubsub', {xmlns='http://jabber.org/protocol/pubsub'})
+ :tag('items', {node=node})
+ :up();
+ session.send(stanza);
return true;
end
+ elseif node then -- node doesn't exist
+ session.send(st.error_reply(stanza, 'cancel', 'item-not-found'));
+ return true;
+ else --invalid request
+ session.send(st.error_reply(stanza, 'modify', 'bad-request'));
+ return true;
end
+ else --no presence subscription
+ session.send(st.error_reply(stanza, 'auth', 'not-authorized')
+ :tag('presence-subscription-required', {xmlns='http://jabber.org/protocol/pubsub#errors'}));
+ return true;
end
end
end);
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);
projects / prosody.git / blobdiff