diff options
Diffstat (limited to 'plugins/mod_pep.lua')
| -rw-r--r-- | plugins/mod_pep.lua | 244 |
1 files changed, 154 insertions, 90 deletions
diff --git a/plugins/mod_pep.lua b/plugins/mod_pep.lua index e07759f0..a65ee903 100644 --- a/plugins/mod_pep.lua +++ b/plugins/mod_pep.lua @@ -1,6 +1,6 @@ -- 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. @@ -10,26 +10,40 @@ 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 NULL = {}; local data = {}; local recipients = {}; local hash_map = {}; -module:add_identity("pubsub", "pep"); +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", module:get_option_string("name", "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'}) @@ -48,9 +62,9 @@ local function publish(session, node, item) 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 @@ -64,10 +78,14 @@ local function publish_all(user, recipient, session) 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 @@ -96,28 +114,46 @@ 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; + local self = not stanza.attr.to; + + 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 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 @@ -125,73 +161,74 @@ 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 == '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)); - return true; - end + 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 - 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 + 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 == '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 - table.sort(form); - form = table.concat(form, "<"); - if FORM_TYPE then form = FORM_TYPE.."\0"..form; end - table.insert(extensions, form); + 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 - 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 +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]; @@ -208,9 +245,36 @@ module:hook("iq/bare/disco", function(event) 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); |