tools/ejabberd2prosody: Disable generating a config, as the format it generates is...
[prosody.git] / plugins / mod_pep.lua
index aa46d2d31807bb526a595b4e6d4da1fd756141c6..bdb742e3a458f22f2b856616b406ea3e99e840af 100644 (file)
 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 = {};
@@ -34,14 +31,14 @@ module.restore = function(state)
        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)
@@ -65,7 +62,7 @@ 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
@@ -118,25 +115,45 @@ 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 t = stanza.attr.type;
+       local self = not stanza.attr.to;
 
-       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
@@ -152,7 +169,8 @@ module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event)
                        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;
@@ -205,56 +223,13 @@ module:hook("iq/bare/http://jabber.org/protocol/pubsub:pubsub", function(event)
        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];
@@ -271,6 +246,15 @@ 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);
@@ -285,8 +269,8 @@ module:hook("account-disco-info", function(event)
 end);
 
 module:hook("account-disco-items", function(event)
-       local session, stanza = event.session, event.stanza;
-       local bare = session.username..'@'..session.host;
+       local stanza = event.stanza;
+       local bare = stanza.attr.to;
        local user_data = data[bare];
 
        if user_data then