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improve send last published items spawning
SVN Revision: 2036
This commit is contained in:
Christophe Romain
parent
6acf7fb5ec
commit
eab7a509f9
@ -1,3 +1,9 @@
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2009-04-23 Christophe Romain <christophe.romain@process-one.net>
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* src/mod_pubsub/mod_pubsub.erl: improve send last published items
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(not spawned as much) and allow to send last PEP items of our offline
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contacts if configured for (fix discussion issue on standars ML)
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2009-04-22 Badlop <badlop@process-one.net>
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* src/ejabberd.cfg.example: Fix English typos. Fix line length:
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@ -108,6 +108,10 @@
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code_change/3
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]).
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%% calls for parallel sending of last items
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-export([send_loop/1
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]).
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-define(PROCNAME, ejabberd_mod_pubsub).
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-define(PLUGIN_PREFIX, "node_").
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-define(TREE_PREFIX, "nodetree_").
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@ -116,8 +120,10 @@
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host,
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access,
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pep_mapping = [],
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pep_sendlast_offline,
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nodetree = ?STDTREE,
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plugins = [?STDNODE]}).
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plugins = [?STDNODE],
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send_loop}).
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%%====================================================================
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%% API
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@ -157,6 +163,7 @@ init([ServerHost, Opts]) ->
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?DEBUG("pubsub init ~p ~p",[ServerHost,Opts]),
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Host = gen_mod:get_opt_host(ServerHost, Opts, "pubsub.@HOST@"),
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Access = gen_mod:get_opt(access_createnode, Opts, all),
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PepOffline = gen_mod:get_opt(pep_sendlast_offline, Opts, false),
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IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
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mod_disco:register_feature(ServerHost, ?NS_PUBSUB),
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ejabberd_hooks:add(disco_sm_identity, ServerHost, ?MODULE, disco_sm_identity, 75),
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@ -188,12 +195,15 @@ init([ServerHost, Opts]) ->
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ets:insert(gen_mod:get_module_proc(ServerHost, pubsub_state), {plugins, Plugins}),
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ets:insert(gen_mod:get_module_proc(ServerHost, pubsub_state), {pep_mapping, PepMapping}),
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init_nodes(Host, ServerHost),
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{ok, #state{host = Host,
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State = #state{host = Host,
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server_host = ServerHost,
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access = Access,
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pep_mapping = PepMapping,
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pep_sendlast_offline = PepOffline,
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nodetree = NodeTree,
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plugins = Plugins}}.
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plugins = Plugins},
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SendLoop = spawn(?MODULE, send_loop, [State]), %% TODO supervise that process
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{ok, State#state{send_loop = SendLoop}}.
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%% @spec (Host, ServerHost, Opts) -> Plugins
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%% Host = mod_pubsub:host() Opts = [{Key,Value}]
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@ -308,6 +318,113 @@ update_database(Host) ->
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ok
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end.
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send_loop(State) ->
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receive
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{presence, JID, Pid} ->
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Host = State#state.host,
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ServerHost = State#state.server_host,
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LJID = jlib:jid_tolower(JID),
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BJID = jlib:jid_remove_resource(LJID),
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%% for each node From is subscribed to
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%% and if the node is so configured, send the last published item to From
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lists:foreach(fun(Type) ->
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{result, Subscriptions} = node_action(Type, get_entity_subscriptions, [Host, JID]),
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lists:foreach(
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fun({Node, subscribed, SubJID}) ->
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if (SubJID == LJID) or (SubJID == BJID) ->
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case tree_action(Host, get_node, [Host, Node, JID]) of
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#pubsub_node{options = Options} ->
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case get_option(Options, send_last_published_item) of
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on_sub_and_presence ->
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send_items(Host, Node, SubJID, last);
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_ ->
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ok
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end;
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_ ->
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ok
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end;
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true ->
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% resource not concerned about that subscription
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ok
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end;
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(_) ->
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ok
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end, Subscriptions)
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end, State#state.plugins),
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%% and force send the last PEP events published by its offline and local contacts
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%% only if pubsub is explicitely configured for that.
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%% this is a hack in a sense that PEP should only be based on presence
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%% and is not able to "store" events of remote users (via s2s)
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%% this makes that hack only work for local domain by now
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if State#state.pep_sendlast_offline ->
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case catch ejabberd_c2s:get_subscribed(Pid) of
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Contacts when is_list(Contacts) ->
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{User, Server, Resource} = jlib:jid_tolower(JID),
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lists:foreach(
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fun({U, S, R}) -> %% local contacts
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case ejabberd_sm:get_user_resources(U, S) of
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[] -> %% offline
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case S of
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ServerHost -> %% local contact, so we may have pep items
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PeerJID = jlib:make_jid(U, S, R),
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handle_cast({presence, User, Server, [Resource], PeerJID}, State);
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_ -> %% remote contact, no items available
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ok
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end;
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_ -> %% online
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% this is already handled by presence probe
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ok
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end;
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(_) -> %% remote contacts
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% we can not do anything in any cases
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ok
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end, Contacts);
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_ ->
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ok
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end;
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true ->
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ok
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end,
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send_loop(State);
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{presence, User, Server, Resources, JID} ->
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Owner = jlib:jid_remove_resource(jlib:jid_tolower(JID)),
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Host = State#state.host,
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ServerHost = State#state.server_host,
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lists:foreach(fun(#pubsub_node{nodeid = {_, Node}, options = Options}) ->
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case get_option(Options, send_last_published_item) of
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on_sub_and_presence ->
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lists:foreach(fun(Resource) ->
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LJID = {User, Server, Resource},
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case is_caps_notify(ServerHost, Node, LJID) of
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true ->
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Subscribed = case get_option(Options, access_model) of
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open -> true;
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presence -> true;
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whitelist -> false; % subscribers are added manually
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authorize -> false; % likewise
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roster ->
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Grps = get_option(Options, roster_groups_allowed, []),
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{OU, OS, _} = Owner,
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element(2, get_roster_info(OU, OS, LJID, Grps))
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end,
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if Subscribed ->
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send_items(Owner, Node, LJID, last);
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true ->
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ok
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end;
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false ->
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ok
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end
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end, Resources);
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_ ->
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ok
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end
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end, tree_action(Host, get_nodes, [Owner, JID])),
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send_loop(State);
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stop ->
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ok
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end.
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%% -------
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%% disco hooks handling functions
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%%
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@ -415,9 +532,9 @@ disco_sm_items(Acc, From, To, Node, _Lang) ->
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%% presence hooks handling functions
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%%
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presence_probe(#jid{luser = User, lserver = Server, lresource = Resource} = JID, JID, _Pid) ->
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presence_probe(#jid{luser = User, lserver = Server, lresource = Resource} = JID, JID, Pid) ->
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Proc = gen_mod:get_module_proc(Server, ?PROCNAME),
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gen_server:cast(Proc, {presence, JID}),
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gen_server:cast(Proc, {presence, JID, Pid}),
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gen_server:cast(Proc, {presence, User, Server, [Resource], JID});
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presence_probe(#jid{luser = User, lserver = Server, lresource = Resource}, #jid{lserver = Host} = JID, _Pid) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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@ -478,72 +595,14 @@ handle_call(stop, _From, State) ->
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%% Description: Handling cast messages
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%%--------------------------------------------------------------------
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%% @private
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handle_cast({presence, JID}, State) ->
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handle_cast({presence, JID, Pid}, State) ->
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%% A new resource is available. send last published items
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Host = State#state.host,
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LJID = jlib:jid_tolower(JID),
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%% for each node From is subscribed to
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%% and if the node is so configured, send the last published item to From
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spawn(fun() ->
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lists:foreach(fun(Type) ->
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{result, Subscriptions} = node_action(Type, get_entity_subscriptions, [Host, JID]),
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lists:foreach(
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fun({Node, subscribed, _SubJID}) ->
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case tree_action(Host, get_node, [Host, Node, JID]) of
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#pubsub_node{options = Options} ->
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case get_option(Options, send_last_published_item) of
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on_sub_and_presence ->
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send_items(Host, Node, LJID, last);
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_ ->
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ok
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end;
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_ ->
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ok
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end;
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(_) ->
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ok
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end, Subscriptions)
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end, State#state.plugins)
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end),
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State#state.send_loop ! {presence, JID, Pid},
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{noreply, State};
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handle_cast({presence, User, Server, Resources, JID}, State) ->
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%% A new resource is available. send last published PEP items
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Owner = jlib:jid_remove_resource(jlib:jid_tolower(JID)),
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Host = State#state.host,
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ServerHost = State#state.server_host,
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spawn(fun() ->
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lists:foreach(fun(#pubsub_node{nodeid = {_, Node}, options = Options}) ->
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case get_option(Options, send_last_published_item) of
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on_sub_and_presence ->
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lists:foreach(fun(Resource) ->
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LJID = {User, Server, Resource},
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case is_caps_notify(ServerHost, Node, LJID) of
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true ->
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Subscribed = case get_option(Options, access_model) of
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open -> true;
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presence -> true;
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whitelist -> false; % subscribers are added manually
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authorize -> false; % likewise
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roster ->
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Grps = get_option(Options, roster_groups_allowed, []),
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{OU, OS, _} = Owner,
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element(2, get_roster_info(OU, OS, LJID, Grps))
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end,
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if Subscribed ->
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send_items(Owner, Node, LJID, last);
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true ->
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ok
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end;
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false ->
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ok
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end
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end, Resources);
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_ ->
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ok
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end
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end, tree_action(Host, get_nodes, [Owner, JID]))
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end),
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State#state.send_loop ! {presence, User, Server, Resources, JID},
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{noreply, State};
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handle_cast({remove_user, LUser, LServer}, State) ->
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@ -600,7 +659,8 @@ handle_info(_Info, State) ->
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terminate(_Reason, #state{host = Host,
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server_host = ServerHost,
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nodetree = TreePlugin,
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plugins = Plugins}) ->
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plugins = Plugins,
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send_loop = SendLoop}) ->
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terminate_plugins(Host, ServerHost, Plugins, TreePlugin),
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ejabberd_router:unregister_route(Host),
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case lists:member(?PEPNODE, Plugins) of
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@ -622,6 +682,7 @@ terminate(_Reason, #state{host = Host,
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gen_iq_handler:remove_iq_handler(ejabberd_sm, ServerHost, ?NS_PUBSUB),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, ServerHost, ?NS_PUBSUB_OWNER),
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mod_disco:unregister_feature(ServerHost, ?NS_PUBSUB),
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SendLoop ! stop,
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ok.
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%%--------------------------------------------------------------------
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@ -820,7 +881,7 @@ iq_disco_items(Host, Item, From) ->
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%% Note: Multiple Node Discovery not supported (mask on pubsub#type)
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%% TODO this code is also back-compatible with pubsub v1.8 (for client issue)
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%% TODO make it pubsub v1.12 compliant (breaks client compatibility ?)
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%% TODO That is, remove name attribute
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%% TODO That is, remove name attribute (or node?, please check)
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Action =
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fun(#pubsub_node{type = Type}) ->
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NodeItems = case node_call(Type, get_items, [Host, Node, From]) of
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@ -1563,7 +1624,7 @@ publish_item(Host, ServerHost, Node, Publisher, ItemId, Payload) ->
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end
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end,
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ejabberd_hooks:run(pubsub_publish_item, ServerHost, [ServerHost, Node, Publisher, service_jid(Host), ItemId, Payload]),
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Reply = [],
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Reply = [], %% TODO EJAB-909
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case transaction(Host, Node, Action, sync_dirty) of
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{error, ?ERR_ITEM_NOT_FOUND} ->
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%% handles auto-create feature
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