net.http.server: Properly handle persistent connections
[prosody.git] / plugins / mod_pubsub.lua
index b7c04163a6552b4db887da88c367feea844a2317..40b119ccb234bca979761a9bcd18ea01cc6e591c 100644 (file)
@@ -3,12 +3,15 @@ local st = require "util.stanza";
 local jid_bare = require "util.jid".bare;
 local uuid_generate = require "util.uuid".generate;
 
-require "core.modulemanager".load(module.host, "iq");
-
 local xmlns_pubsub = "http://jabber.org/protocol/pubsub";
 local xmlns_pubsub_errors = "http://jabber.org/protocol/pubsub#errors";
 local xmlns_pubsub_event = "http://jabber.org/protocol/pubsub#event";
 
+local autocreate_on_publish = module:get_option_boolean("autocreate_on_publish", false);
+local autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscribe", false);
+local pubsub_disco_name = module:get_option("name");
+if type(pubsub_disco_name) ~= "string" then pubsub_disco_name = "Prosody PubSub Service"; end
+
 local service;
 
 local handlers = {};
@@ -54,6 +57,7 @@ function handlers.get_items(origin, stanza, items)
        for _, entry in pairs(results) do
                data:add_child(entry);
        end
+       local reply;
        if data then
                reply = st.reply(stanza)
                        :tag("pubsub", { xmlns = xmlns_pubsub })
@@ -64,6 +68,21 @@ function handlers.get_items(origin, stanza, items)
        return origin.send(reply);
 end
 
+function handlers.get_subscriptions(origin, stanza, subscriptions)
+       local node = subscriptions.attr.node;
+       local ok, ret = service:get_subscriptions(node, stanza.attr.from, stanza.attr.from);
+       if not ok then
+               return origin.send(pubsub_error_reply(stanza, ret));
+       end
+       local reply = st.reply(stanza)
+               :tag("pubsub", { xmlns = xmlns_pubsub })
+                       :tag("subscriptions");
+       for _, sub in ipairs(ret) do
+               reply:tag("subscription", { node = sub.node, jid = sub.jid, subscription = 'subscribed' }):up();
+       end
+       return origin.send(reply);
+end
+
 function handlers.set_create(origin, stanza, create)
        local node = create.attr.node;
        local ok, ret, reply;
@@ -92,10 +111,11 @@ end
 
 function handlers.set_subscribe(origin, stanza, subscribe)
        local node, jid = subscribe.attr.node, subscribe.attr.jid;
-       if jid_bare(jid) ~= jid_bare(stanza.attr.from) then
-               return origin.send(pubsub_error_reply(stanza, "invalid-jid"));
+       local options_tag, options = stanza.tags[1]:get_child("options"), nil;
+       if options_tag then
+               options = options_form:data(options_tag.tags[1]);
        end
-       local ok, ret = service:add_subscription(node, stanza.attr.from, jid);
+       local ok, ret = service:add_subscription(node, stanza.attr.from, jid, options);
        local reply;
        if ok then
                reply = st.reply(stanza)
@@ -104,18 +124,28 @@ function handlers.set_subscribe(origin, stanza, subscribe)
                                        node = node,
                                        jid = jid,
                                        subscription = "subscribed"
-                               });
+                               }):up();
+               if options_tag then
+                       reply:add_child(options_tag);
+               end
        else
                reply = pubsub_error_reply(stanza, ret);
        end
-       return origin.send(reply);
+       origin.send(reply);
+       if ok then
+               -- Send all current items
+               local ok, items = service:get_items(node, stanza.attr.from);
+               if items then
+                       local jids = { [jid] = options or true };
+                       for id, item in pairs(items) do
+                               service.config.broadcaster(node, jids, item);
+                       end
+               end
+       end
 end
 
 function handlers.set_unsubscribe(origin, stanza, unsubscribe)
        local node, jid = unsubscribe.attr.node, unsubscribe.attr.jid;
-       if jid_bare(jid) ~= jid_bare(stanza.attr.from) then
-               return origin.send(pubsub_error_reply(stanza, "invalid-jid"));
-       end
        local ok, ret = service:remove_subscription(node, stanza.attr.from, jid);
        local reply;
        if ok then
@@ -171,22 +201,92 @@ function simple_broadcast(node, jids, item)
        for jid in pairs(jids) do
                module:log("debug", "Sending notification to %s", jid);
                message.attr.to = jid;
-               core_post_stanza(hosts[module.host], message);
+               module:send(message);
        end
 end
 
 module:hook("iq/host/http://jabber.org/protocol/pubsub:pubsub", handle_pubsub_iq);
 
-local disco_info = st.stanza("query", { xmlns = "http://jabber.org/protocol/disco#info" })
-       :tag("identity", { category = "pubsub", type = "service" }):up()
-       :tag("feature", { var = "http://jabber.org/protocol/pubsub" }):up();
+local disco_info;
+
+local feature_map = {
+       create = { "create-nodes", autocreate_on_publish and "instant-nodes", "item-ids" };
+       retract = { "delete-items", "retract-items" };
+       publish = { "publish" };
+       get_items = { "retrieve-items" };
+       add_subscription = { "subscribe" };
+       get_subscriptions = { "retrieve-subscriptions" };
+};
+
+local function add_disco_features_from_service(disco, service)
+       for method, features in pairs(feature_map) do
+               if service[method] then
+                       for _, feature in ipairs(features) do
+                               if feature then
+                                       disco:tag("feature", { var = xmlns_pubsub.."#"..feature }):up();
+                               end
+                       end
+               end
+       end
+       for affiliation in pairs(service.config.capabilities) do
+               if affiliation ~= "none" and affiliation ~= "owner" then
+                       disco:tag("feature", { var = xmlns_pubsub.."#"..affiliation.."-affiliation" }):up();
+               end
+       end
+end
+
+local function build_disco_info(service)
+       local disco_info = st.stanza("query", { xmlns = "http://jabber.org/protocol/disco#info" })
+               :tag("identity", { category = "pubsub", type = "service", name = pubsub_disco_name }):up()
+               :tag("feature", { var = "http://jabber.org/protocol/pubsub" }):up();
+       add_disco_features_from_service(disco_info, service);
+       return disco_info;
+end
 
 module:hook("iq-get/host/http://jabber.org/protocol/disco#info:query", function (event)
-       event.origin.send(st.reply(event.stanza):add_child(disco_info));
-       return true;
+       local origin, stanza = event.origin, event.stanza;
+       local node = stanza.tags[1].attr.node;
+       if not node then
+               return origin.send(st.reply(stanza):add_child(disco_info));
+       else
+               local ok, ret = service:get_nodes(stanza.attr.from);
+               if ok and not ret[node] then
+                       ok, ret = false, "item-not-found";
+               end
+               if not ok then
+                       return origin.send(pubsub_error_reply(stanza, ret));
+               end
+               local reply = st.reply(stanza)
+                       :tag("query", { xmlns = "http://jabber.org/protocol/disco#info", node = node })
+                               :tag("identity", { category = "pubsub", type = "leaf" });
+               return origin.send(reply);
+       end
 end);
 
+local function handle_disco_items_on_node(event)
+       local stanza, origin = event.stanza, event.origin;
+       local query = stanza.tags[1];
+       local node = query.attr.node;
+       local ok, ret = service:get_items(node, stanza.attr.from);
+       if not ok then
+               return origin.send(pubsub_error_reply(stanza, ret));
+       end
+       
+       local reply = st.reply(stanza)
+               :tag("query", { xmlns = "http://jabber.org/protocol/disco#items", node = node });
+       
+       for id, item in pairs(ret) do
+               reply:tag("item", { jid = module.host, name = id }):up();
+       end
+       
+       return origin.send(reply);
+end
+
+
 module:hook("iq-get/host/http://jabber.org/protocol/disco#items:query", function (event)
+       if event.stanza.tags[1].attr.node then
+               return handle_disco_items_on_node(event);
+       end
        local ok, ret = service:get_nodes(event.stanza.attr.from);
        if not ok then
                event.origin.send(pubsub_error_reply(stanza, ret));
@@ -203,12 +303,27 @@ end);
 
 local admin_aff = module:get_option_string("default_admin_affiliation", "owner");
 local function get_affiliation(jid)
-       if usermanager.is_admin(jid, module.host) then
+       local bare_jid = jid_bare(jid);
+       if bare_jid == module.host or usermanager.is_admin(bare_jid, module.host) then
                return admin_aff;
        end
 end
 
-service = pubsub.new({
+function set_service(new_service)
+       service = new_service;
+       module.environment.service = service;
+       disco_info = build_disco_info(service);
+end
+
+function module.save()
+       return { service = service };
+end
+
+function module.restore(data)
+       set_service(data.service);
+end
+
+set_service(pubsub.new({
        capabilities = {
                none = {
                        create = false;
@@ -219,11 +334,35 @@ service = pubsub.new({
                        subscribe = true;
                        unsubscribe = true;
                        get_subscription = true;
-                       --get_items = true;
+                       get_subscriptions = true;
+                       get_items = true;
                        
                        subscribe_other = false;
                        unsubscribe_other = false;
                        get_subscription_other = false;
+                       get_subscriptions_other = false;
+                       
+                       be_subscribed = true;
+                       be_unsubscribed = true;
+                       
+                       set_affiliation = false;
+               };
+               publisher = {
+                       create = false;
+                       publish = true;
+                       retract = true;
+                       get_nodes = true;
+                       
+                       subscribe = true;
+                       unsubscribe = true;
+                       get_subscription = true;
+                       get_subscriptions = true;
+                       get_items = true;
+                       
+                       subscribe_other = false;
+                       unsubscribe_other = false;
+                       get_subscription_other = false;
+                       get_subscriptions_other = false;
                        
                        be_subscribed = true;
                        be_unsubscribed = true;
@@ -239,37 +378,27 @@ service = pubsub.new({
                        subscribe = true;
                        unsubscribe = true;
                        get_subscription = true;
-                       --get_items = true;
+                       get_subscriptions = true;
+                       get_items = true;
                        
                        
                        subscribe_other = true;
                        unsubscribe_other = true;
                        get_subscription_other = true;
+                       get_subscriptions_other = true;
                        
                        be_subscribed = true;
                        be_unsubscribed = true;
                        
                        set_affiliation = true;
                };
-               admin = { get_items = true };
        };
        
-       autocreate_on_publish = module:get_option_boolean("autocreate_on_publish");
-       autocreate_on_subscribe = module:get_option_boolean("autocreate_on_subscribe");
+       autocreate_on_publish = autocreate_on_publish;
+       autocreate_on_subscribe = autocreate_on_subscribe;
        
        broadcaster = simple_broadcast;
        get_affiliation = get_affiliation;
-       jids_equal = function (jid1, jid2)
-               return jid_bare(jid1) == jid_bare(jid2);
-       end;
-});
-module.environment.service = service;
-
-function module.save()
-       return { service = service };
-end
-
-function module.restore(data)
-       service = data.service;
-       module.environment.service = service;
-end
+       
+       normalize_jid = jid_bare;
+}));