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xmpp.chapril.org-ejabberd
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* src/mod_caps.erl: CAPS support (thanks to Magnus Henoch) 

* src/ejabberd_local.erl: Support for IQ responses
* src/jlib.erl: Added iq_query_or_response_info/1 function
* src/jlib.hrl: Added NS_PUBSUB_ERRORS and NS_CAPS

* src/mod_pubsub/Makefile.in: New pubsub+pep implementation
(thanks to Christophe Romain and Magnus Henoch)
* src/ejabberd_sm.erl: Added get_session_pid/3 function
* src/ejabberd_c2s.erl: Added get_subscribed_and_online/1 function

SVN Revision: 1004
This commit is contained in:
Alexey Shchepin 2007-12-01 05:16:30 +00:00
parent e4cf286aa2
commit c3c782d882
23 changed files with 5233 additions and 1346 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
ChangeLog
View File

@ -1,32 +1,44 @@
2007-12-01 Alexey Shchepin <alexey@process-one.net>
* src/mod_caps.erl: CAPS support (thanks to Magnus Henoch)
* src/ejabberd_local.erl: Support for IQ responses
* src/jlib.erl: Added iq_query_or_response_info/1 function
* src/jlib.hrl: Added NS_PUBSUB_ERRORS and NS_CAPS
* src/mod_pubsub/Makefile.in: New pubsub+pep implementation
(thanks to Christophe Romain and Magnus Henoch)
* src/ejabberd_sm.erl: Added get_session_pid/3 function
* src/ejabberd_c2s.erl: Added get_subscribed_and_online/1 function
2007-11-30 Mickael Remond <mremond@process-one.net>
* src/odbc_queries.erl: Added a default define value so that we can
recompile the file manually with a simple erlc command.
* src/odbc_queries.erl: Added a default define value so that we
can recompile the file manually with a simple erlc command.
2007-11-29 Badlop <badlop@process-one.net>
* src/mod_vcard.erl: Add type of x:data field to search
results (thanks to Robin Redeker) (EJAB-327)
* src/mod_vcard_ldap.erl:
* src/mod_vcard_odbc.erl:
* src/mod_vcard.erl: Add type of x:data field to search results
(thanks to Robin Redeker) (EJAB-327)
* src/mod_vcard_ldap.erl: Likewise
* src/mod_vcard_odbc.erl: Likewise
* src/aclocal.m4: Fix autoconf caching for SSL libraries (thanks
to Michael Shields) (EJAB-439)
* src/configure.ac: Don't hardcode gcc and gcc options in
Makefiles (thanks to Etan Reisner) (EJAB-436)
* src/Makefile.in:
* src/ejabberd_zlib/Makefile.in:
* src/eldap/Makefile.in:
* src/mod_irc/Makefile.in:
* src/mod_muc/Makefile.in:
* src/mod_proxy65/Makefile.in:
* src/mod_pubsub/Makefile.in:
* src/odbc/Makefile.in:
* src/pam/Makefile.in:
* src/stringprep/Makefile.in:
* src/tls/Makefile.in:
* src/web/Makefile.in:
* src/Makefile.in: Likewise
* src/ejabberd_zlib/Makefile.in: Likewise
* src/eldap/Makefile.in: Likewise
* src/mod_irc/Makefile.in: Likewise
* src/mod_muc/Makefile.in: Likewise
* src/mod_proxy65/Makefile.in: Likewise
* src/mod_pubsub/Makefile.in: Likewise
* src/odbc/Makefile.in: Likewise
* src/pam/Makefile.in: Likewise
* src/stringprep/Makefile.in: Likewise
* src/tls/Makefile.in: Likewise
* src/web/Makefile.in: Likewise
* src/mod_muc/mod_muc_room.erl: Hide the option 'Make room
moderated' because it isn't implemented, and set the default value

54
src/ejabberd_c2s.erl
View File

@ -18,7 +18,8 @@
send_text/2,
send_element/2,
socket_type/0,
get_presence/1]).
get_presence/1,
get_subscribed_and_online/1]).
%% gen_fsm callbacks
-export([init/1,
@ -39,6 +40,7 @@
-include("jlib.hrl").
-define(SETS, gb_sets).
-define(DICT, dict).
-record(state, {socket,
sockmod,
@ -60,6 +62,7 @@
pres_f = ?SETS:new(),
pres_a = ?SETS:new(),
pres_i = ?SETS:new(),
pres_available = ?DICT:new(),
pres_last, pres_pri,
pres_timestamp,
pres_invis = false,
@ -173,6 +176,12 @@ init([{SockMod, Socket}, Opts]) ->
shaper = Shaper,
ip = IP}, ?C2S_OPEN_TIMEOUT}.
%% Return list of all available resources of contacts,
%% in form [{JID, Caps}].
get_subscribed_and_online(FsmRef) ->
gen_fsm:sync_send_all_state_event(
FsmRef, get_subscribed_and_online, 1000).
%%----------------------------------------------------------------------
%% Func: StateName/2
@ -572,7 +581,7 @@ wait_for_feature_request({xmlstreamelement, El}, StateData) ->
case xml:get_subtag(El, "method") of
false ->
send_element(StateData,
{xmlelement, "failure",
{xmlelement, "failure",
[{"xmlns", ?NS_COMPRESS}],
[{xmlelement, "setup-failed", [], []}]}),
fsm_next_state(wait_for_feature_request, StateData);
@ -964,6 +973,17 @@ handle_sync_event({get_presence}, _From, StateName, StateData) ->
Reply = {User, Resource, Show, Status},
fsm_reply(Reply, StateName, StateData);
handle_sync_event(get_subscribed_and_online, _From, StateName, StateData) ->
Subscribed = StateData#state.pres_f,
Online = StateData#state.pres_available,
Pred = fun(User, _Caps) ->
?SETS:is_element(jlib:jid_remove_resource(User),
Subscribed) orelse
?SETS:is_element(User, Subscribed)
end,
SubscribedAndOnline = ?DICT:filter(Pred, Online),
{reply, ?DICT:to_list(SubscribedAndOnline), StateName, StateData};
handle_sync_event(_Event, _From, StateName, StateData) ->
Reply = ok,
fsm_reply(Reply, StateName, StateData).
@ -1054,32 +1074,42 @@ handle_info({route, From, To, Packet}, StateName, StateData) ->
allow ->
LFrom = jlib:jid_tolower(From),
LBFrom = jlib:jid_remove_resource(LFrom),
%% Note contact availability
Caps = mod_caps:read_caps(Els),
mod_caps:note_caps(StateData#state.server, From, Caps),
NewAvailable = case xml:get_attr_s("type", Attrs) of
"unavailable" ->
?DICT:erase(LFrom, StateData#state.pres_available);
_ ->
?DICT:store(LFrom, Caps, StateData#state.pres_available)
end,
NewStateData = StateData#state{pres_available = NewAvailable},
case ?SETS:is_element(
LFrom, StateData#state.pres_a) orelse
LFrom, NewStateData#state.pres_a) orelse
?SETS:is_element(
LBFrom, StateData#state.pres_a) of
LBFrom, NewStateData#state.pres_a) of
true ->
{true, Attrs, StateData};
{true, Attrs, NewStateData};
false ->
case ?SETS:is_element(
LFrom, StateData#state.pres_f) of
LFrom, NewStateData#state.pres_f) of
true ->
A = ?SETS:add_element(
LFrom,
StateData#state.pres_a),
NewStateData#state.pres_a),
{true, Attrs,
StateData#state{pres_a = A}};
NewStateData#state{pres_a = A}};
false ->
case ?SETS:is_element(
LBFrom, StateData#state.pres_f) of
LBFrom, NewStateData#state.pres_f) of
true ->
A = ?SETS:add_element(
LBFrom,
StateData#state.pres_a),
NewStateData#state.pres_a),
{true, Attrs,
StateData#state{pres_a = A}};
NewStateData#state{pres_a = A}};
false ->
{true, Attrs, StateData}
{true, Attrs, NewStateData}
end
end
end;

39
src/ejabberd_local.erl
View File

@ -18,6 +18,7 @@
-export([route/3,
register_iq_handler/4,
register_iq_handler/5,
register_iq_response_handler/4,
unregister_iq_handler/2,
refresh_iq_handlers/0,
bounce_resource_packet/3
@ -32,6 +33,8 @@
-record(state, {}).
-record(iq_response, {id, module, function}).
-define(IQTABLE, local_iqtable).
%%====================================================================
@ -68,13 +71,38 @@ process_iq(From, To, Packet) ->
ejabberd_router:route(To, From, Err)
end;
reply ->
ok;
process_iq_reply(From, To, Packet);
_ ->
Err = jlib:make_error_reply(Packet, ?ERR_BAD_REQUEST),
ejabberd_router:route(To, From, Err),
ok
end.
process_iq_reply(From, To, Packet) ->
IQ = jlib:iq_query_or_response_info(Packet),
#iq{id = ID} = IQ,
case catch mnesia:dirty_read(iq_response, ID) of
[] ->
ok;
_ ->
F = fun() ->
case mnesia:read({iq_response, ID}) of
[] ->
nothing;
[#iq_response{module = Module,
function = Function}] ->
mnesia:delete({iq_response, ID}),
{Module, Function}
end
end,
case mnesia:transaction(F) of
{atomic, {Module, Function}} ->
Module:Function(From, To, IQ);
_ ->
ok
end
end.
route(From, To, Packet) ->
case catch do_route(From, To, Packet) of
{'EXIT', Reason} ->
@ -84,6 +112,9 @@ route(From, To, Packet) ->
ok
end.
register_iq_response_handler(Host, ID, Module, Fun) ->
ejabberd_local ! {register_iq_response_handler, Host, ID, Module, Fun}.
register_iq_handler(Host, XMLNS, Module, Fun) ->
ejabberd_local ! {register_iq_handler, Host, XMLNS, Module, Fun}.
@ -120,6 +151,9 @@ init([]) ->
?MODULE, bounce_resource_packet, 100)
end, ?MYHOSTS),
catch ets:new(?IQTABLE, [named_table, public]),
mnesia:create_table(iq_response,
[{ram_copies, [node()]},
{attributes, record_info(fields, iq_response)}]),
{ok, #state{}}.
%%--------------------------------------------------------------------
@ -159,6 +193,9 @@ handle_info({route, From, To, Packet}, State) ->
ok
end,
{noreply, State};
handle_info({register_iq_response_handler, _Host, ID, Module, Function}, State) ->
mnesia:dirty_write(#iq_response{id = ID, module = Module, function = Function}),
{noreply, State};
handle_info({register_iq_handler, Host, XMLNS, Module, Function}, State) ->
ets:insert(?IQTABLE, {{XMLNS, Host}, Module, Function}),
catch mod_disco:register_feature(Host, XMLNS),

20
src/ejabberd_sm.erl
View File

@ -28,6 +28,7 @@
register_iq_handler/5,
unregister_iq_handler/2,
ctl_process/2,
get_session_pid/3,
get_user_ip/3
]).
@ -74,7 +75,7 @@ open_session(SID, User, Server, Resource, IP) ->
close_session(SID, User, Server, Resource) ->
F = fun() ->
mnesia:delete({session, SID})
end,
end,
mnesia:sync_dirty(F),
JID = jlib:make_jid(User, Server, Resource),
ejabberd_hooks:run(sm_remove_connection_hook, JID#jid.lserver,
@ -139,6 +140,15 @@ close_session_unset_presence(SID, User, Server, Resource, Status) ->
ejabberd_hooks:run(unset_presence_hook, jlib:nameprep(Server),
[User, Server, Resource, Status]).
get_session_pid(User, Server, Resource) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
LResource = jlib:resourceprep(Resource),
USR = {LUser, LServer, LResource},
case catch mnesia:dirty_index_read(session, USR, #session.usr) of
[#session{sid = {_, Pid}}] -> Pid;
_ -> none
end.
dirty_get_sessions_list() ->
mnesia:dirty_select(
@ -315,7 +325,7 @@ clean_table_from_bad_node(Node) ->
lists:foreach(fun(E) ->
mnesia:delete({session, E#session.sid})
end, Es)
end,
end,
mnesia:sync_dirty(F).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@ -368,7 +378,6 @@ do_route(From, To, Packet) ->
{true, false}
end,
if Pass ->
LFrom = jlib:jid_tolower(From),
PResources = get_user_present_resources(
LUser, LServer),
lists:foreach(
@ -377,7 +386,9 @@ do_route(From, To, Packet) ->
From,
jlib:jid_replace_resource(To, R),
Packet)
end, PResources);
end, PResources),
ejabberd_hooks:run(incoming_presence_hook, LServer,
[From, To, Packet]);
true ->
ok
end;
@ -649,4 +660,3 @@ update_tables() ->
false ->
ok
end.

72
src/jlib.erl
View File

@ -32,6 +32,7 @@
jid_replace_resource/2,
get_iq_namespace/1,
iq_query_info/1,
iq_query_or_response_info/1,
is_iq_request_type/1,
iq_to_xml/1,
parse_xdata_submit/1,
@ -331,39 +332,66 @@ get_iq_namespace({xmlelement, Name, _Attrs, Els}) when Name == "iq" ->
get_iq_namespace(_) ->
"".
iq_query_info({xmlelement, Name, Attrs, Els}) when Name == "iq" ->
iq_query_info(El) ->
iq_info_internal(El, request).
iq_query_or_response_info(El) ->
iq_info_internal(El, any).
iq_info_internal({xmlelement, Name, Attrs, Els}, Filter) when Name == "iq" ->
%% Filter is either request or any. If it is request, any replies
%% are converted to the atom reply.
ID = xml:get_attr_s("id", Attrs),
Type = xml:get_attr_s("type", Attrs),
Lang = xml:get_attr_s("xml:lang", Attrs),
Type1 = case Type of
"set" -> set;
"get" -> get;
"result" -> reply;
"error" -> reply;
_ -> invalid
{Type1, Class} = case Type of
"set" -> {set, request};
"get" -> {get, request};
"result" -> {result, reply};
"error" -> {error, reply};
_ -> {invalid, invalid}
end,
if
(Type1 /= invalid) and (Type1 /= reply) ->
case xml:remove_cdata(Els) of
[{xmlelement, Name2, Attrs2, Els2}] ->
XMLNS = xml:get_attr_s("xmlns", Attrs2),
if
XMLNS /= "" ->
Type1 == invalid ->
invalid;
Class == request; Filter == any ->
%% The iq record is a bit strange. The sub_el field is an
%% XML tuple for requests, but a list of XML tuples for
%% responses.
FilteredEls = xml:remove_cdata(Els),
{XMLNS, SubEl} =
case {Class, FilteredEls} of
{request, [{xmlelement, _Name2, Attrs2, _Els2}]} ->
{xml:get_attr_s("xmlns", Attrs2),
hd(FilteredEls)};
{reply, _} ->
%% Find the namespace of the first non-error
%% element, if there is one.
NonErrorEls = [El ||
{xmlelement, SubName, _, _} = El
<- FilteredEls,
SubName /= "error"],
{case NonErrorEls of
[NonErrorEl] -> xml:get_tag_attr_s("xmlns", NonErrorEl);
_ -> invalid
end,
FilteredEls};
_ ->
{invalid, invalid}
end,
if XMLNS == "", Class == request ->
invalid;
true ->
#iq{id = ID,
type = Type1,
xmlns = XMLNS,
lang = Lang,
sub_el = {xmlelement, Name2, Attrs2, Els2}};
true ->
invalid
sub_el = SubEl}
end;
_ ->
invalid
end;
true ->
Type1
Class == reply, Filter /= any ->
reply
end;
iq_query_info(_) ->
iq_info_internal(_, _) ->
not_iq.
is_iq_request_type(set) -> true;

3
src/jlib.hrl
View File

@ -33,6 +33,7 @@
-define(NS_PUBSUB_EVENT, "http://jabber.org/protocol/pubsub#event").
-define(NS_PUBSUB_OWNER, "http://jabber.org/protocol/pubsub#owner").
-define(NS_PUBSUB_NMI, "http://jabber.org/protocol/pubsub#node-meta-info").
-define(NS_PUBSUB_ERRORS,"http://jabber.org/protocol/pubsub#errors").
-define(NS_COMMANDS, "http://jabber.org/protocol/commands").
-define(NS_BYTESTREAMS, "http://jabber.org/protocol/bytestreams").
-define(NS_ADMIN, "http://jabber.org/protocol/admin").
@ -55,6 +56,8 @@
-define(NS_COMPRESS, "http://jabber.org/protocol/compress").
-define(NS_CAPS, "http://jabber.org/protocol/caps").
% TODO: remove "code" attribute (currently it used for backward-compatibility)
-define(STANZA_ERROR(Code, Type, Condition),
{xmlelement, "error",

259
src/mod_caps.erl Normal file
View File

@ -0,0 +1,259 @@
%%%----------------------------------------------------------------------
%%% File : mod_caps.erl
%%% Author : Magnus Henoch <henoch@dtek.chalmers.se>
%%% Purpose : Request and cache Entity Capabilities (XEP-0115)
%%% Created : 7 Oct 2006 by Magnus Henoch <henoch@dtek.chalmers.se>
%%%----------------------------------------------------------------------
-module(mod_caps).
-author('henoch@dtek.chalmers.se').
-behaviour(gen_server).
-behaviour(gen_mod).
-export([read_caps/1,
note_caps/3,
get_features/2,
handle_disco_response/3]).
%% gen_mod callbacks
-export([start/2, start_link/2,
stop/1]).
%% gen_server callbacks
-export([init/1,
handle_info/2,
handle_call/3,
handle_cast/2,
terminate/2,
code_change/3
]).
-include("ejabberd.hrl").
-include("jlib.hrl").
-define(PROCNAME, ejabberd_mod_caps).
-define(DICT, dict).
-record(caps, {node, version, exts}).
-record(caps_features, {node_pair, features}).
-record(state, {host,
disco_requests = ?DICT:new(),
feature_queries = []}).
%% read_caps takes a list of XML elements (the child elements of a
%% <presence/> stanza) and returns an opaque value representing the
%% Entity Capabilities contained therein, or the atom nothing if no
%% capabilities are advertised.
read_caps([{xmlelement, "c", Attrs, _Els} | Tail]) ->
case xml:get_attr_s("xmlns", Attrs) of
?NS_CAPS ->
Node = xml:get_attr_s("node", Attrs),
Version = xml:get_attr_s("ver", Attrs),
Exts = string:tokens(xml:get_attr_s("ext", Attrs), " "),
#caps{node = Node, version = Version, exts = Exts};
_ ->
read_caps(Tail)
end;
read_caps([_ | Tail]) ->
read_caps(Tail);
read_caps([]) ->
nothing.
%% note_caps should be called to make the module request disco
%% information. Host is the host that asks, From is the full JID that
%% sent the caps packet, and Caps is what read_caps returned.
note_caps(Host, From, Caps) ->
case Caps of
nothing -> ok;
_ ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:cast(Proc, {note_caps, From, Caps})
end.
%% get_features returns a list of features implied by the given caps
%% record (as extracted by read_caps). It may block, and may signal a
%% timeout error.
get_features(Host, Caps) ->
case Caps of
nothing -> [];
#caps{} ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:call(Proc, {get_features, Caps})
end.
start_link(Host, Opts) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:start_link({local, Proc}, ?MODULE, [Host, Opts], []).
start(Host, Opts) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
ChildSpec =
{Proc,
{?MODULE, start_link, [Host, Opts]},
transient,
1000,
worker,
[?MODULE]},
supervisor:start_child(ejabberd_sup, ChildSpec).
stop(Host) ->
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:call(Proc, stop),
supervisor:stop_child(ejabberd_sup, Proc).
%%====================================================================
%% gen_server callbacks
%%====================================================================
init([Host, _Opts]) ->
mnesia:create_table(caps_features,
[{ram_copies, [node()]},
{attributes, record_info(fields, caps_features)}]),
mnesia:add_table_copy(caps_features, node(), ram_copies),
{ok, #state{host = Host}}.
maybe_get_features(#caps{node = Node, version = Version, exts = Exts}) ->
SubNodes = [Version | Exts],
F = fun() ->
%% Make sure that we have all nodes we need to know.
%% If a single one is missing, we wait for more disco
%% responses.
lists:foldl(fun(SubNode, Acc) ->
case Acc of
fail -> fail;
_ ->
case mnesia:read({caps_features, {Node, SubNode}}) of
[] -> fail;
[#caps_features{features = Features}] -> Features ++ Acc
end
end
end, [], SubNodes)
end,
case mnesia:transaction(F) of
{atomic, fail} ->
wait;
{atomic, Features} ->
{ok, Features}
end.
timestamp() ->
{MegaSecs, Secs, _MicroSecs} = now(),
MegaSecs * 1000000 + Secs.
handle_call({get_features, Caps}, From, State) ->
case maybe_get_features(Caps) of
{ok, Features} ->
{reply, Features, State};
wait ->
Timeout = timestamp() + 10,
FeatureQueries = State#state.feature_queries,
NewFeatureQueries = [{From, Caps, Timeout} | FeatureQueries],
NewState = State#state{feature_queries = NewFeatureQueries},
{noreply, NewState}
end;
handle_call(stop, _From, State) ->
{stop, normal, ok, State}.
handle_cast({note_caps, From,
#caps{node = Node, version = Version, exts = Exts}},
#state{host = Host, disco_requests = Requests} = State) ->
%% XXX: this leads to race conditions where ejabberd will send
%% lots of caps disco requests.
SubNodes = [Version | Exts],
%% Now, find which of these are not already in the database.
Fun = fun() ->
lists:foldl(fun(SubNode, Acc) ->
case mnesia:read({caps_features, {Node, SubNode}}) of
[] ->
[SubNode | Acc];
_ ->
Acc
end
end, [], SubNodes)
end,
case mnesia:transaction(Fun) of
{atomic, Missing} ->
%% For each unknown caps "subnode", we send a disco
%% request.
NewRequests =
lists:foldl(
fun(SubNode, Dict) ->
ID = randoms:get_string(),
Stanza =
{xmlelement, "iq",
[{"type", "get"},
{"id", ID}],
[{xmlelement, "query",
[{"xmlns", ?NS_DISCO_INFO},
{"node", Node ++ "#" ++ SubNode}],
[]}]},
ejabberd_local:register_iq_response_handler
(Host, ID, ?MODULE, handle_disco_response),
ejabberd_router:route(jlib:make_jid("", Host, ""), From, Stanza),
?DICT:store(ID, {Node, SubNode}, Dict)
end, Requests, Missing),
{noreply, State#state{disco_requests = NewRequests}};
Error ->
?ERROR_MSG("Transaction failed: ~p", [Error]),
{noreply, State}
end;
handle_cast({disco_response, From, _To,
#iq{type = Type, id = ID,
sub_el = SubEls}},
#state{disco_requests = Requests} = State) ->
case {Type, SubEls} of
{result, [{xmlelement, "query", Attrs, Els}]} ->
case ?DICT:find(ID, Requests) of
{ok, {Node, SubNode}} ->
Features =
lists:flatmap(fun({xmlelement, "feature", FAttrs, _}) ->
[xml:get_attr_s("var", FAttrs)];
(_) ->
[]
end, Els),
mnesia:transaction(
fun() ->
mnesia:write(#caps_features{node_pair = {Node, SubNode},
features = Features})
end),
gen_server:cast(self(), visit_feature_queries);
error ->
?ERROR_MSG("ID '~s' matches no query", [ID])
end;
{result, _} ->
?ERROR_MSG("Invalid IQ contents from ~s: ~p", [jlib:jid_to_string(From), SubEls]);
_ ->
%% Can't do anything about errors
ok
end,
NewRequests = ?DICT:erase(ID, Requests),
{noreply, State#state{disco_requests = NewRequests}};
handle_cast(visit_feature_queries, #state{feature_queries = FeatureQueries} = State) ->
Timestamp = timestamp(),
NewFeatureQueries =
lists:foldl(fun({From, Caps, Timeout}, Acc) ->
case maybe_get_features(Caps) of
wait when Timeout < Timestamp -> [{From, Caps, Timeout} | Acc];
wait -> Acc;
{ok, Features} ->
gen_server:reply(From, Features),
Acc
end
end, [], FeatureQueries),
{noreply, State#state{feature_queries = NewFeatureQueries}}.
handle_disco_response(From, To, IQ) ->
#jid{lserver = Host} = To,
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
gen_server:cast(Proc, {disco_response, From, To, IQ}).
handle_info(_Info, State) ->
{noreply, State}.
terminate(_Reason, _State) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.

11
src/mod_pubsub/Makefile.in
View File

@ -15,11 +15,18 @@ OUTDIR = ..
EFLAGS = -I .. -pz ..
# make debug=true to compile Erlang module with debug informations.
ifdef debug
EFLAGS+=+debug_info
EFLAGS+=+debug_info
endif
OBJS = \
$(OUTDIR)/mod_pubsub.beam
$(OUTDIR)/gen_pubsub_node.beam \
$(OUTDIR)/gen_pubsub_nodetree.beam \
$(OUTDIR)/nodetree_default.beam \
$(OUTDIR)/nodetree_virtual.beam \
$(OUTDIR)/mod_pubsub.beam \
$(OUTDIR)/mod_pubsub_old.beam \
$(OUTDIR)/node_default.beam \
$(OUTDIR)/node_pep.beam
all: $(OBJS)

28
src/mod_pubsub/Makefile.win32
View File

@ -5,12 +5,38 @@ OUTDIR = ..
EFLAGS = -I .. -pz ..
OBJS = \
$(OUTDIR)\mod_pubsub.beam
$(OUTDIR)/gen_pubsub_node.beam \
$(OUTDIR)/gen_pubsub_nodetree.beam \
$(OUTDIR)/nodetree_default.beam \
$(OUTDIR)/nodetree_virtual.beam \
$(OUTDIR)/mod_pubsub.beam \
$(OUTDIR)/mod_pubsub_old.beam \
$(OUTDIR)/node_default.beam \
$(OUTDIR)/node_pep.beam
ALL : $(OBJS)
CLEAN :
-@erase $(OBJS)
$(OUTDIR)\gen_pubsub_node.beam : gen_pubsub_node.erl
erlc -W $(EFLAGS) -o $(OUTDIR) gen_pubsub_node.erl
$(OUTDIR)\gen_pubsub_nodetree.beam : gen_pubsub_nodetree.erl
erlc -W $(EFLAGS) -o $(OUTDIR) gen_pubsub_nodetree.erl
$(OUTDIR)\mod_pubsub.beam : mod_pubsub.erl
erlc -W $(EFLAGS) -o $(OUTDIR) mod_pubsub.erl
$(OUTDIR)\nodetree_default.beam : nodetree_default.erl
erlc -W $(EFLAGS) -o $(OUTDIR) nodetree_default.erl
$(OUTDIR)\nodetree_virtual.beam : nodetree_virtual.erl
erlc -W $(EFLAGS) -o $(OUTDIR) nodetree_virtual.erl
$(OUTDIR)\node_default.beam : node_default.erl
erlc -W $(EFLAGS) -o $(OUTDIR) node_default.erl
$(OUTDIR)\node_pep.beam : node_pep.erl
erlc -W $(EFLAGS) -o $(OUTDIR) node_pep.erl

55
src/mod_pubsub/gen_pubsub_node.erl Normal file
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@ -0,0 +1,55 @@
%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2006 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @private
%%% @doc <p>The module <strong>{@module}</strong> defines the PubSub node
%%% plugin behaviour. This behaviour is used to check that a PubSub plugin
%%% respects the current ejabberd PubSub plugin API.</p>
-module(gen_pubsub_node).
-export([behaviour_info/1]).
%% @spec (Query::atom()) -> Callbacks | atom()
%% Callbacks = [{Function,Arity}]
%% Function = atom()
%% Arity = integer()
%% @doc Behaviour definition
behaviour_info(callbacks) ->
[{init, 3},
{terminate, 2},
{options, 0},
{features, 0},
{create_node_permission, 6},
{create_node, 3},
{delete_node, 2},
{purge_node, 3},
{subscribe_node, 8},
{unsubscribe_node, 5},
{publish_item, 7},
{delete_item, 4},
{remove_extra_items, 4},
{get_node_affiliations, 2},
{get_entity_affiliations, 2},
{get_affiliation, 3},
{set_affiliation, 4},
{get_node_subscriptions, 2},
{get_entity_subscriptions, 2},
{get_subscription, 3},
{set_subscription, 4},
{get_states, 2},
{get_state, 3},
{set_state, 1},
{get_items, 2},
{get_item, 3},
{set_item, 1}
];
behaviour_info(_Other) ->
undefined.

40
src/mod_pubsub/gen_pubsub_nodetree.erl Normal file
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@ -0,0 +1,40 @@
%%% ====================================================================
%%% This software is copyright 2006, Process-one.
%%%
%%% $Id: gen_pubsub_nodetree.erl 100 2007-11-15 13:04:44Z mremond $
%%%
%%% @copyright 2006 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @private
%%% @doc <p>The module <strong>{@module}</strong> defines the PubSub node
%%% tree plugin behaviour. This behaviour is used to check that a PubSub
%%% node tree plugin respects the current ejabberd PubSub plugin API.</p>
-module(gen_pubsub_nodetree).
-export([behaviour_info/1]).
%% @spec (Query::atom()) -> Callbacks | atom()
%% Callbacks = [{Function,Arity}]
%% Function = atom()
%% Arity = integer()
%% @doc Behaviour definition
behaviour_info(callbacks) ->
[{init, 3},
{terminate, 2},
{options, 0},
{set_node, 1},
{get_node, 2},
{get_nodes, 1},
{get_subnodes, 2},
{get_subnodes_tree, 2},
{create_node, 5},
{delete_node, 2}
];
behaviour_info(_Other) ->
undefined.

3677
src/mod_pubsub/mod_pubsub.erl
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163
src/mod_pubsub/node.template Normal file
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@ -0,0 +1,163 @@
%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(__TO_BE_DEFINED__).
-author(__TO_BE_DEFINED__).
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% Note on function definition
%% included is all defined plugin function
%% it's possible not to define some function at all
%% in that case, warning will be generated at compilation
%% and function call will fail,
%% then mod_pubsub will call function from node_default
%% (this makes code cleaner, but execution a little bit longer)
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, __TO_BE_DEFINED__},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, open},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID).
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

163
src/mod_pubsub/node_buddy.erl Normal file
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@ -0,0 +1,163 @@
%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(node_buddy).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% Note on function definition
%% included is all defined plugin function
%% it's possible not to define some function at all
%% in that case, warning will be generated at compilation
%% and function call will fail,
%% then mod_pubsub will call function from node_default
%% (this makes code cleaner, but execution a little bit longer)
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, buddy},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, presence},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID).
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

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@ -0,0 +1,163 @@
%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(node_club).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% Note on function definition
%% included is all defined plugin function
%% it's possible not to define some function at all
%% in that case, warning will be generated at compilation
%% and function call will fail,
%% then mod_pubsub will call function from node_default
%% (this makes code cleaner, but execution a little bit longer)
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, club},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, authorize},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID).
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

712
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@ -0,0 +1,712 @@
%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @todo The item table should be handled by the plugin, but plugin that do
%%% not want to manage it should be able to use the default behaviour.
%%% @todo Plugin modules should be able to register to receive presence update
%%% send to pubsub.
%%% @doc The module <strong>{@module}</strong> is the default PubSub plugin.
%%% <p>It is used as a default for all unknown PubSub node type. It can serve
%%% as a developer basis and reference to build its own custom pubsub node
%%% types.</p>
%%% <p>PubSub plugin nodes are using the {@link gen_node} behaviour.</p>
%%% <p><strong>The API isn't stabilized yet</strong>. The pubsub plugin
%%% development is still a work in progress. However, the system is already
%%% useable and useful as is. Please, send us comments, feedback and
%%% improvements.</p>
-module(node_default).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
%% ================
%% API definition
%% ================
%% @spec (Host) -> any()
%% Host = mod_pubsub:host()
%% ServerHost = host()
%% Opts = list()
%% @doc <p>Called during pubsub modules initialisation. Any pubsub plugin must
%% implement this function. It can return anything.</p>
%% <p>This function is mainly used to trigger the setup task necessary for the
%% plugin. It can be used for example by the developer to create the specific
%% module database schema if it does not exists yet.</p>
init(_Host, _ServerHost, _Opts) ->
mnesia:create_table(pubsub_state,
[{disc_copies, [node()]},
{attributes, record_info(fields, pubsub_state)}]),
StatesFields = record_info(fields, pubsub_state),
case mnesia:table_info(pubsub_state, attributes) of
StatesFields -> ok;
_ ->
mnesia:transform_table(pubsub_state, ignore, StatesFields)
end,
mnesia:create_table(pubsub_item,
[{disc_only_copies, [node()]},
{attributes, record_info(fields, pubsub_item)}]),
ItemsFields = record_info(fields, pubsub_item),
case mnesia:table_info(pubsub_item, attributes) of
ItemsFields -> ok;
_ ->
mnesia:transform_table(pubsub_item, ignore, ItemsFields)
end,
ok.
%% @spec (Host) -> any()
%% Host = mod_pubsub:host()
%% @doc <p>Called during pubsub modules termination. Any pubsub plugin must
%% implement this function. It can return anything.</p>
terminate(_Host, _ServerHost) ->
ok.
%% @spec () -> [Option]
%% Option = mod_pubsub:nodeOption()
%% @doc Returns the default pubsub node options.
%% <p>Example of function return value:</p>
%% ```
%% [{deliver_payloads, true},
%% {notify_config, false},
%% {notify_delete, false},
%% {notify_retract, true},
%% {persist_items, true},
%% {max_items, 10},
%% {subscribe, true},
%% {access_model, open},
%% {publish_model, publishers},
%% {max_payload_size, 100000},
%% {send_last_published_item, never},
%% {presence_based_delivery, false}]'''
options() ->
[{node_type, default},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, open},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
%% @spec () -> []
%% @doc Returns the node features
features() ->
["create-nodes",
"auto-create",
"delete-nodes",
"instant-nodes",
"item-ids",
"manage-subscriptions",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
%% @spec (Host, Node, Owner, Access) -> bool()
%% Host = mod_pubsub:host()
%% ServerHost = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Owner = mod_pubsub:jid()
%% Access = all | atom()
%% @doc Checks if the current user has the permission to create the requested node
%% <p>In {@link node_default}, the permission is decided by the place in the
%% hierarchy where the user is creating the node. The access parameter is also
%% checked in the default module. This parameter depends on the value of the
%% <tt>access_createnode</tt> ACL value in ejabberd config file.</p>
%% <p>This function also check that node can be created a a children of its
%% parent node</p>
%% <p>PubSub plugins can redefine the PubSub node creation rights as they
%% which. They can simply delegate this check to the {@link node_default}
%% module by implementing this function like this:
%% ```check_create_user_permission(Host, Node, Owner, Access) ->
%% node_default:check_create_user_permission(Host, Node, Owner, Access).'''</p>
create_node_permission(Host, ServerHost, Node, _ParentNode, Owner, Access) ->
LOwner = jlib:jid_tolower(Owner),
{User, Server, _Resource} = LOwner,
Allowed = case acl:match_rule(ServerHost, Access, LOwner) of
allow ->
if Server == Host -> %% Server == ServerHost ??
true;
true ->
case Node of
["home", Server, User | _] -> true;
_ -> false
end
end;
_ ->
case Owner of
?PUBSUB_JID -> true;
_ -> false
end
end,
ChildOK = true, %% TODO test with ParentNode
{result, Allowed and ChildOK}.
%% @spec (Host, Node, Owner) ->
%% {result, Result} | exit
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Owner = mod_pubsub:jid()
%% @doc <p></p>
create_node(Host, Node, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
mnesia:write(#pubsub_state{stateid = {OwnerKey, {Host, Node}},
affiliation = owner, subscription = none}),
{result, {default, broadcast}}.
%% @spec (Host, Removed) -> ok
%% Host = mod_pubsub:host()
%% Removed = [mod_pubsub:pubsubNode()]
%% @doc <p>purge items of deleted nodes after effective deletion.</p>
delete_node(Host, Removed) ->
lists:foreach(
fun(Node) ->
lists:foreach(
fun(#pubsub_state{stateid = StateId, items = Items}) ->
lists:foreach(
fun(ItemId) ->
mnesia:delete(
{pubsub_item, {ItemId, {Host, Node}}})
end, Items),
mnesia:delete({pubsub_state, StateId})
end,
mnesia:match_object(
#pubsub_state{stateid = {'_', {Host, Node}}, _ = '_'}))
end, Removed),
{result, {default, broadcast, Removed}}.
%% @spec (Host, Node, Sender, Subscriber, AccessModel, SendLast) ->
%% {error, Reason} | {result, Result}
%% @doc <p>Accepts or rejects subcription requests on a PubSub node.</p>
%% <p>The mechanism works as follow:
%% <ul>
%% <li>The main PubSub module prepares the subscription and passes the
%% result of the preparation as a record.</li>
%% <li>This function gets the prepared record and several other parameters and
%% can decide to:<ul>
%% <li>reject the subscription;</li>
%% <li>allow it as is, letting the main module perform the database
%% persistance;</li>
%% <li>allow it, modifying the record. The main module will store the
%% modified record;</li>
%% <li>allow it, but perform the needed persistance operations.</li></ul>
%% </li></ul></p>
%% <p>The selected behaviour depends on the return parameter:
%% <ul>
%% <li><tt>{error, Reason}</tt>: an IQ error result will be returned. No
%% subscription will actually be performed.</li>
%% <li><tt>true</tt>: Subscribe operation is allowed, based on the
%% unmodified record passed in parameter <tt>SubscribeResult</tt>. If this
%% parameter contains an error, no subscription will be performed.</li>
%% <li><tt>{true, PubsubState}</tt>: Subscribe operation is allowed, but
%% the {@link mod_pubsub:pubsubState()} record returned replaces the value
%% passed in parameter <tt>SubscribeResult</tt>.</li>
%% <li><tt>{true, done}</tt>: Subscribe operation is allowed, but the
%% {@link mod_pubsub:pubsubState()} will be considered as already stored and
%% no further persistance operation will be performed. This case is used,
%% when the plugin module is doing the persistance by itself or when it want
%% to completly disable persistance.</li></ul>
%% </p>
%% <p>In the default plugin module, the record is unchanged.</p>
subscribe_node(Host, Node, Sender, Subscriber, AccessModel,
SendLast, PresenceSubscription, RosterGroup) ->
SenderKey = jlib:jid_tolower(Sender),
Authorized = (jlib:jid_remove_resource(SenderKey) == jlib:jid_remove_resource(Subscriber)),
% TODO add some acl check for Authorized ?
State = case get_state(Host, Node, Subscriber) of
{error, ?ERR_ITEM_NOT_FOUND} ->
#pubsub_state{stateid = {Subscriber, {Host, Node}}}; % TODO: bug on Key ?
{result, S} -> S
end,
#pubsub_state{affiliation = Affiliation,
subscription = Subscription} = State,
if
not Authorized ->
%% JIDs do not match
{error, ?ERR_EXTENDED(?ERR_BAD_REQUEST, "invalid-jid")};
Subscription == pending ->
%% Requesting entity has pending subscription
{error, ?ERR_EXTENDED(?ERR_NOT_AUTHORIZED, "pending-subscription")};
Affiliation == outcast ->
%% Requesting entity is blocked
{error, ?ERR_FORBIDDEN};
(AccessModel == presence) and (not PresenceSubscription) ->
%% Entity is not authorized to create a subscription (presence subscription required)
{error, ?ERR_EXTENDED(?ERR_NOT_AUTHORIZED, "presence-subscription-required")};
(AccessModel == roster) and (not RosterGroup) ->
%% Entity is not authorized to create a subscription (not in roster group)
{error, ?ERR_EXTENDED(?ERR_NOT_AUTHORIZED, "not-in-roster-group")};
(AccessModel == whitelist) -> % TODO: to be done
%% Node has whitelist access model
{error, ?ERR_EXTENDED(?ERR_NOT_ALLOWED, "closed-node")};
(AccessModel == authorize) -> % TODO: to be done
%% Node has authorize access model
{error, ?ERR_FORBIDDEN};
%%MustPay ->
%% % Payment is required for a subscription
%% {error, ?ERR_PAYMENT_REQUIRED};
%%ForbiddenAnonymous ->
%% % Requesting entity is anonymous
%% {error, ?ERR_FORBIDDEN};
true ->
NewSubscription =
if
AccessModel == authorize ->
pending;
%%TODO Affiliation == none -> ?
%%NeedConfiguration ->
%% unconfigured
true ->
subscribed
end,
set_state(State#pubsub_state{subscription = NewSubscription}),
case NewSubscription of
subscribed ->
case SendLast of
never -> {result, {default, NewSubscription}};
_ -> {result, {default, NewSubscription, send_last}}
end;
_ ->
{result, {default, NewSubscription}}
end
end.
%% @spec (Host, Node, Sender, Subscriber, SubID) ->
%% {error, Reason} | {result, []}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Sender = mod_pubsub:jid()
%% Subscriber = mod_pubsub:jid()
%% SubID = string()
%% Reason = mod_pubsub:stanzaError()
%% @doc <p>Unsubscribe the <tt>Subscriber</tt> from the <tt>Node</tt>.</p>
unsubscribe_node(Host, Node, Sender, Subscriber, _SubId) ->
SenderKey = jlib:jid_tolower(Sender),
Match = jlib:jid_remove_resource(SenderKey) == jlib:jid_remove_resource(Subscriber),
Authorized = case Match of
true ->
true;
false ->
case get_state(Host, Node, SenderKey) of % TODO: bug on Key ?
{result, #pubsub_state{affiliation=owner}} -> true;
_ -> false
end
end,
case get_state(Host, Node, Subscriber) of
{error, ?ERR_ITEM_NOT_FOUND} ->
%% Requesting entity is not a subscriber
{error, ?ERR_EXTENDED(?ERR_UNEXPECTED_REQUEST, "not-subscribed")};
{result, State} ->
if
%% Entity did not specify SubID
%%SubID == "", ?? ->
%% {error, ?ERR_EXTENDED(?ERR_BAD_REQUEST, "subid-required")};
%% Invalid subscription identifier
%%InvalidSubID ->
%% {error, ?ERR_EXTENDED(?ERR_NOT_ACCEPTABLE, "invalid-subid")};
%% Requesting entity is not a subscriber
State#pubsub_state.subscription == none ->
{error, ?ERR_EXTENDED(?ERR_UNEXPECTED_REQUEST, "not-subscribed")};
%% Requesting entity is prohibited from unsubscribing entity
not Authorized ->
{error, ?ERR_FORBIDDEN};
true ->
set_state(State#pubsub_state{subscription = none}),
{result, default}
end
end.
%% @spec (Host, Node, Publisher, PublishModel, MaxItems, ItemId, Payload) ->
%% {true, PubsubItem} | {result, Reply}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Publisher = mod_pubsub:jid()
%% PublishModel = atom()
%% MaxItems = integer()
%% ItemId = string()
%% Payload = term()
%% @doc <p>Publishes the item passed as parameter.</p>
%% <p>The mechanism works as follow:
%% <ul>
%% <li>The main PubSub module prepares the item to publish and passes the
%% result of the preparation as a {@link mod_pubsub:pubsubItem()} record.</li>
%% <li>This function gets the prepared record and several other parameters and can decide to:<ul>
%% <li>reject the publication;</li>
%% <li>allow the publication as is, letting the main module perform the database persistance;</li>
%% <li>allow the publication, modifying the record. The main module will store the modified record;</li>
%% <li>allow it, but perform the needed persistance operations.</li></ul>
%% </li></ul></p>
%% <p>The selected behaviour depends on the return parameter:
%% <ul>
%% <li><tt>{error, Reason}</tt>: an iq error result will be return. No
%% publication is actually performed.</li>
%% <li><tt>true</tt>: Publication operation is allowed, based on the
%% unmodified record passed in parameter <tt>Item</tt>. If the <tt>Item</tt>
%% parameter contains an error, no subscription will actually be
%% performed.</li>
%% <li><tt>{true, Item}</tt>: Publication operation is allowed, but the
%% {@link mod_pubsub:pubsubItem()} record returned replaces the value passed
%% in parameter <tt>Item</tt>. The persistance will be performed by the main
%% module.</li>
%% <li><tt>{true, done}</tt>: Publication operation is allowed, but the
%% {@link mod_pubsub:pubsubItem()} will be considered as already stored and
%% no further persistance operation will be performed. This case is used,
%% when the plugin module is doing the persistance by itself or when it want
%% to completly disable persistance.</li></ul>
%% </p>
%% <p>In the default plugin module, the record is unchanged.</p>
publish_item(Host, Node, Publisher, PublishModel, MaxItems, ItemId, Payload) ->
PublisherKey = jlib:jid_tolower(jlib:jid_remove_resource(Publisher)),
State = case get_state(Host, Node, PublisherKey) of
{error, ?ERR_ITEM_NOT_FOUND} -> #pubsub_state{stateid={PublisherKey, {Host, Node}}};
{result, S} -> S
end,
#pubsub_state{affiliation = Affiliation,
subscription = Subscription} = State,
if
not ((PublishModel == open)
or ((PublishModel == publishers)
and ((Affiliation == owner) or (Affiliation == publisher)))
or ((PublishModel == subscribers)
and (Subscription == subscribed))) ->
%% Entity does not have sufficient privileges to publish to node
{error, ?ERR_FORBIDDEN};
true ->
PubId = {PublisherKey, now()},
Item = case get_item(Host, Node, ItemId) of
{error, ?ERR_ITEM_NOT_FOUND} ->
#pubsub_item{itemid = {ItemId, {Host, Node}},
creation = PubId,
modification = PubId,
payload = Payload};
{result, OldItem} ->
OldItem#pubsub_item{modification = PubId,
payload = Payload}
end,
Items = [ItemId | State#pubsub_state.items],
{result, {NI, OI}} = remove_extra_items(
Host, Node, MaxItems, Items),
set_item(Item),
set_state(State#pubsub_state{items = NI}),
{result, {default, broadcast, OI}}
end.
%% @spec (Host, Node, MaxItems, ItemIds) -> {NewItemIds,OldItemIds}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% MaxItems = integer() | unlimited
%% ItemIds = [ItemId::string()]
%% NewItemIds = [ItemId::string()]
%% @doc <p>This function is used to remove extra items, most notably when the
%% maximum number of items has been reached.</p>
%% <p>This function is used internally by the core PubSub module, as no
%% permission check is performed.</p>
%% <p>In the default plugin module, the oldest items are removed, but other
%% rules can be used.</p>
%% <p>If another PubSub plugin wants to delegate the item removal (and if the
%% plugin is using the default pubsub storage), it can implements this function like this:
%% ```remove_extra_items(Host, Node, MaxItems, ItemIds) ->
%% node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).'''</p>
remove_extra_items(_Host, _Node, unlimited, ItemIds) ->
{result, {ItemIds, []}};
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
NewItems = lists:sublist(ItemIds, MaxItems),
OldItems = lists:nthtail(length(NewItems), ItemIds),
%% Remove extra items:
lists:foreach(fun(ItemId) ->
mnesia:delete({pubsub_item, {ItemId, {Host, Node}}})
end, OldItems),
%% Return the new items list:
{result, {NewItems, OldItems}}.
%% @spec (Host, Node, JID, ItemId) ->
%% {error, Reason::stanzaError()} |
%% {result, []}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% JID = mod_pubsub:jid()
%% ItemId = string()
%% @doc <p>Triggers item deletion.</p>
%% <p>Default plugin: The user performing the deletion must be the node owner
%% or a node publisher e item publisher.</p>
delete_item(Host, Node, Publisher, ItemId) ->
PublisherKey = jlib:jid_tolower(jlib:jid_remove_resource(Publisher)),
State = case get_state(Host, Node, PublisherKey) of
{error, ?ERR_ITEM_NOT_FOUND} ->
#pubsub_state{stateid = {PublisherKey, {Host, Node}}};
{result, S} ->
S
end,
#pubsub_state{affiliation = Affiliation, items = Items} = State,
Allowed = (Affiliation == publisher) orelse (Affiliation == owner)
orelse case get_item(Host, Node, ItemId) of
{result, #pubsub_item{creation = {PublisherKey, _}}} -> true;
_ -> false
end,
if
not Allowed ->
%% Requesting entity does not have sufficient privileges
{error, ?ERR_FORBIDDEN};
true ->
case get_item(Host, Node, ItemId) of
{result, _} ->
mnesia:delete({pubsub_item, {ItemId, {Host, Node}}}),
NewItems = lists:delete(ItemId, Items),
set_state(State#pubsub_state{items = NewItems}),
{result, {default, broadcast}};
_ ->
%% Non-existent node or item
{error, ?ERR_ITEM_NOT_FOUND}
end
end.
%% @spec (TODO)
purge_node(Host, Node, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
case get_state(Host, Node, OwnerKey) of
{error, ?ERR_ITEM_NOT_FOUND} ->
%% This should not append (case node does not exists)
{error, ?ERR_ITEM_NOT_FOUND};
{result, #pubsub_state{items = Items, affiliation = owner}} ->
lists:foreach(fun(ItemId) ->
mnesia:delete({pubsub_item, {ItemId, {Host, Node}}})
end, Items),
{result, {default, broadcast}};
_ ->
%% Entity is not an owner
{error, ?ERR_FORBIDDEN}
end.
%% @spec (Host, JID) -> [{Node,Affiliation}]
%% Host = host()
%% JID = mod_pubsub:jid()
%% @doc <p>Return the current affiliations for the given user</p>
%% <p>The default module reads affiliations in the main Mnesia
%% <tt>pubsub_state</tt> table. If a plugin stores its data in the same
%% table, it should return an empty list, as the affiliation will be read by
%% the default PubSub module. Otherwise, it should return its own affiliation,
%% that will be added to the affiliation stored in the main
%% <tt>pubsub_state</tt> table.</p>
get_entity_affiliations(Host, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
States = mnesia:match_object(
#pubsub_state{stateid = {OwnerKey, {Host, '_'}},
_ = '_'}),
Tr = fun(#pubsub_state{stateid = {_, {_, N}}, affiliation = A}) ->
{N, A}
end,
{result, lists:map(Tr, States)}.
get_node_affiliations(Host, Node) ->
States = mnesia:match_object(
#pubsub_state{stateid = {'_', {Host, Node}},
_ = '_'}),
Tr = fun(#pubsub_state{stateid = {J, {_, _}}, affiliation = A}) ->
{J, A}
end,
{result, lists:map(Tr, States)}.
get_affiliation(Host, Node, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
Affiliation = case get_state(Host, Node, OwnerKey) of
{result, #pubsub_state{affiliation = A}} -> A;
_ -> unknown
end,
{result, Affiliation}.
set_affiliation(Host, Node, Owner, Affiliation) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
Record = case get_state(Host, Node, OwnerKey) of
{error, ?ERR_ITEM_NOT_FOUND} ->
#pubsub_state{stateid = {OwnerKey, {Host, Node}},
affiliation = Affiliation};
{result, State} ->
State#pubsub_state{affiliation = Affiliation}
end,
set_state(Record),
ok.
%% @spec (Host) -> [{Node,Subscription}]
%% Host = host()
%% JID = mod_pubsub:jid()
%% @doc <p>Return the current subscriptions for the given user</p>
%% <p>The default module reads subscriptions in the main Mnesia
%% <tt>pubsub_state</tt> table. If a plugin stores its data in the same
%% table, it should return an empty list, as the affiliation will be read by
%% the default PubSub module. Otherwise, it should return its own affiliation,
%% that will be added to the affiliation stored in the main
%% <tt>pubsub_state</tt> table.</p>
get_entity_subscriptions(Host, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
States = mnesia:match_object(
#pubsub_state{stateid = {OwnerKey, {Host, '_'}},
_ = '_'}),
Tr = fun(#pubsub_state{stateid = {_, {_, N}}, subscription = S}) ->
{N, S}
end,
{result, lists:map(Tr, States)}.
get_node_subscriptions(Host, Node) ->
States = mnesia:match_object(
#pubsub_state{stateid = {'_', {Host, Node}},
_ = '_'}),
Tr = fun(#pubsub_state{stateid = {J, {_, _}}, subscription = S}) ->
{J, S}
end,
{result, lists:map(Tr, States)}.
get_subscription(Host, Node, Owner) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
Subscription = case get_state(Host, Node, OwnerKey) of
{result, #pubsub_state{subscription = S}} -> S;
_ -> unknown
end,
{result, Subscription}.
set_subscription(Host, Node, Owner, Subscription) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
Record = case get_state(Host, Node, OwnerKey) of
{error, ?ERR_ITEM_NOT_FOUND} ->
#pubsub_state{stateid = {OwnerKey, {Host, Node}},
subscription = Subscription};
{result, State} ->
State#pubsub_state{subscription = Subscription}
end,
set_state(Record),
ok.
%% @spec (Host, Node) -> [States] | []
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Item = mod_pubsub:pubsubItems()
%% @doc Returns the list of stored states for a given node.
%% <p>For the default PubSub module, states are stored in Mnesia database.</p>
%% <p>We can consider that the pubsub_state table have been created by the main
%% mod_pubsub module.</p>
%% <p>PubSub plugins can store the states where they wants (for example in a
%% relational database).</p>
%% <p>If a PubSub plugin wants to delegate the states storage to the default node,
%% they can implement this function like this:
%% ```get_states(Host, Node) ->
%% node_default:get_states(Host, Node).'''</p>
get_states(Host, Node) ->
States = mnesia:match_object(
#pubsub_state{stateid = {'_', {Host, Node}}, _ = '_'}),
{result, States}.
%% @spec (JID, Host, Node) -> [State] | []
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% JID = mod_pubsub:jid()
%% State = mod_pubsub:pubsubItems()
%% @doc <p>Returns a state (one state list), given its reference.</p>
get_state(Host, Node, JID) ->
case mnesia:read({pubsub_state, {JID, {Host, Node}}}) of
[State] when is_record(State, pubsub_state) ->
{result, State};
_ ->
{error, ?ERR_ITEM_NOT_FOUND}
end.
%% @spec (State) -> ok | {error, ?ERR_INTERNAL_SERVER_ERROR}
%% State = mod_pubsub:pubsubStates()
%% @doc <p>Write a state into database.</p>
set_state(State) when is_record(State, pubsub_state) ->
mnesia:write(State);
set_state(_) ->
{error, ?ERR_INTERNAL_SERVER_ERROR}.
%% @spec (Host, Node) -> [Items] | []
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Items = mod_pubsub:pubsubItems()
%% @doc Returns the list of stored items for a given node.
%% <p>For the default PubSub module, items are stored in Mnesia database.</p>
%% <p>We can consider that the pubsub_item table have been created by the main
%% mod_pubsub module.</p>
%% <p>PubSub plugins can store the items where they wants (for example in a
%% relational database), or they can even decide not to persist any items.</p>
%% <p>If a PubSub plugin wants to delegate the item storage to the default node,
%% they can implement this function like this:
%% ```get_items(Host, Node) ->
%% node_default:get_items(Host, Node).'''</p>
get_items(Host, Node) ->
Items = mnesia:match_object(
#pubsub_item{itemid = {'_', {Host, Node}}, _ = '_'}),
{result, Items}.
%% @spec (Host, Node, ItemId) -> [Item] | []
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% ItemId = string()
%% Item = mod_pubsub:pubsubItems()
%% @doc <p>Returns an item (one item list), given its reference.</p>
get_item(Host, Node, ItemId) ->
case mnesia:read({pubsub_item, {ItemId, {Host, Node}}}) of
[Item] when is_record(Item, pubsub_item) ->
{result, Item};
_ ->
{error, ?ERR_ITEM_NOT_FOUND}
end.
%% @spec (Item) -> ok | {error, ?ERR_INTERNAL_SERVER_ERROR}
%% Item = mod_pubsub:pubsubItems()
%% @doc <p>Write a state into database.</p>
set_item(Item) when is_record(Item, pubsub_item) ->
mnesia:write(Item);
set_item(_) ->
{error, ?ERR_INTERNAL_SERVER_ERROR}.

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(node_dispatch).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%%% @doc <p>The <strong>{@module}</strong> module is a PubSub plugin whose
%%% goal is to republished each published item to all its children.</p>
%%% <p>Users cannot subscribe to this node, but are supposed to subscribe to
%%% its children.</p>
%%% This module can not work with virtual nodetree
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, dispatch},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, open},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
%%"purge-nodes",
%%"retract-items",
%%"retrieve-affiliations",
"retrieve-items",
%%"retrieve-subscriptions",
%%"subscribe",
%%"subscription-notifications",
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(_Host, _Node, _Sender, _Subscriber, _AccessModel,
_SendLast, _PresenceSubscription, _RosterGroup) ->
{error, ?ERR_FORBIDDEN}.
unsubscribe_node(_Host, _Node, _Sender, _Subscriber, _SubID) ->
{error, ?ERR_FORBIDDEN}.
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
lists:foreach(fun(SubNode) ->
node_default:publish_item(
Host, SubNode, Publisher, Model,
MaxItems, ItemId, Payload)
end, nodetree_default:get_subnodes(Host, Node)).
remove_extra_items(_Host, _Node, _MaxItems, ItemIds) ->
{result, {ItemsIds, []}}.
delete_item(_Host, _Node, _JID, _ItemId) ->
{error, ?ERR_ITEM_NOT_FOUND}.
purge_node(_Host, _Node, _Owner) ->
{error, ?ERR_FORBIDDEN}.
get_entity_affiliations(_Host, _Owner) ->
{result, []}.
get_node_affiliations(_Host, _Node) ->
{result, []}.
get_affiliation(_Host, _Node, _Owner) ->
{result, []}.
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(_Host, _Owner) ->
{result, []}.
get_node_subscriptions(_Host, _Node) ->
{result, []}.
get_subscription(_Host, _Node, _Owner) ->
{result, []}.
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @doc The module <strong>{@module}</strong> is the pep PubSub plugin.
%%% <p>PubSub plugin nodes are using the {@link gen_pubsub_node} behaviour.</p>
-module(node_pep).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts),
ok.
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost),
ok.
options() ->
[{node_type, pep},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, false},
{persist_items, false},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, presence},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, on_sub_and_presence},
{deliver_notifications, true},
{presence_based_delivery, true}].
features() ->
["create-nodes", %*
"auto-create", %*
"delete-nodes", %*
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish", %*
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items", %*
"retrieve-subscriptions",
"subscribe", %*
"auto-subscribe", %*
"filtered-notifications" %*
].
create_node_permission(_Host, _ServerHost, _Node, _ParentNode, _Owner, _Access) ->
%% TODO may we check bare JID match ?
{result, true}.
create_node(Host, Node, Owner) ->
case node_default:create_node(Host, Node, Owner) of
{result, _} -> {result, []};
Error -> Error
end.
delete_node(Host, Removed) ->
case node_default:delete_node(Host, Removed) of
{result, {_, _, Removed}} -> {result, {[], Removed}};
Error -> Error
end.
subscribe_node(Host, Node, Sender, Subscriber, AccessModel,
SendLast, PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(
Host, Node, Sender, Subscriber, AccessModel, SendLast,
PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
case node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID) of
{error, Error} -> {error, Error};
{result, _} -> {result, []}
end.
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(node_private).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% Note on function definition
%% included is all defined plugin function
%% it's possible not to define some function at all
%% in that case, warning will be generated at compilation
%% and function call will fail,
%% then mod_pubsub will call function from node_default
%% (this makes code cleaner, but execution a little bit longer)
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, private},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, whitelist},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, false},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode,
Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast,
PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(Host, Node, Sender, Subscriber, AccessModel,
SendLast, PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID).
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% $Id: node_public.erl 100 2007-11-15 13:04:44Z mremond $
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
-module(node_public).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_node).
%% Note on function definition
%% included is all defined plugin function
%% it's possible not to define some function at all
%% in that case, warning will be generated at compilation
%% and function call will fail,
%% then mod_pubsub will call function from node_default
%% (this makes code cleaner, but execution a little bit longer)
%% API definition
-export([init/3, terminate/2,
options/0, features/0,
create_node_permission/6,
create_node/3,
delete_node/2,
purge_node/3,
subscribe_node/8,
unsubscribe_node/5,
publish_item/7,
delete_item/4,
remove_extra_items/4,
get_entity_affiliations/2,
get_node_affiliations/2,
get_affiliation/3,
set_affiliation/4,
get_entity_subscriptions/2,
get_node_subscriptions/2,
get_subscription/3,
set_subscription/4,
get_states/2,
get_state/3,
set_state/1,
get_items/2,
get_item/3,
set_item/1
]).
init(Host, ServerHost, Opts) ->
node_default:init(Host, ServerHost, Opts).
terminate(Host, ServerHost) ->
node_default:terminate(Host, ServerHost).
options() ->
[{node_type, public},
{deliver_payloads, true},
{notify_config, false},
{notify_delete, false},
{notify_retract, true},
{persist_items, true},
{max_items, ?MAXITEMS div 2},
{subscribe, true},
{access_model, open},
{access_roster_groups, []},
{publish_model, publishers},
{max_payload_size, ?MAX_PAYLOAD_SIZE},
{send_last_published_item, never},
{deliver_notifications, true},
{presence_based_delivery, false}].
features() ->
["create-nodes",
"delete-nodes",
"instant-nodes",
"item-ids",
"outcast-affiliation",
"persistent-items",
"publish",
"purge-nodes",
"retract-items",
"retrieve-affiliations",
"retrieve-items",
"retrieve-subscriptions",
"subscribe",
"subscription-notifications"
].
create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access) ->
node_default:create_node_permission(Host, ServerHost, Node, ParentNode, Owner, Access).
create_node(Host, Node, Owner) ->
node_default:create_node(Host, Node, Owner).
delete_node(Host, Removed) ->
node_default:delete_node(Host, Removed).
subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup) ->
node_default:subscribe_node(Host, Node, Sender, Subscriber, AccessModel, SendLast, PresenceSubscription, RosterGroup).
unsubscribe_node(Host, Node, Sender, Subscriber, SubID) ->
node_default:unsubscribe_node(Host, Node, Sender, Subscriber, SubID).
publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload) ->
node_default:publish_item(Host, Node, Publisher, Model, MaxItems, ItemId, Payload).
remove_extra_items(Host, Node, MaxItems, ItemIds) ->
node_default:remove_extra_items(Host, Node, MaxItems, ItemIds).
delete_item(Host, Node, JID, ItemId) ->
node_default:delete_item(Host, Node, JID, ItemId).
purge_node(Host, Node, Owner) ->
node_default:purge_node(Host, Node, Owner).
get_entity_affiliations(Host, Owner) ->
node_default:get_entity_affiliations(Host, Owner).
get_node_affiliations(Host, Node) ->
node_default:get_node_affiliations(Host, Node).
get_affiliation(Host, Node, Owner) ->
node_default:get_affiliation(Host, Node, Owner).
set_affiliation(Host, Node, Owner, Affiliation) ->
node_default:set_affiliation(Host, Node, Owner, Affiliation).
get_entity_subscriptions(Host, Owner) ->
node_default:get_entity_subscriptions(Host, Owner).
get_node_subscriptions(Host, Node) ->
node_default:get_node_subscriptions(Host, Node).
get_subscription(Host, Node, Owner) ->
node_default:get_subscription(Host, Node, Owner).
set_subscription(Host, Node, Owner, Subscription) ->
node_default:set_subscription(Host, Node, Owner, Subscription).
get_states(Host, Node) ->
node_default:get_states(Host, Node).
get_state(Host, Node, JID) ->
node_default:get_state(Host, Node, JID).
set_state(State) ->
node_default:set_state(State).
get_items(Host, Node) ->
node_default:get_items(Host, Node).
get_item(Host, Node, ItemId) ->
node_default:get_items(Host, Node, ItemId).
set_item(Item) ->
node_default:set_item(Item).

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @doc The module <strong>{@module}</strong> is the default PubSub node tree plugin.
%%% <p>It is used as a default for all unknown PubSub node type. It can serve
%%% as a developer basis and reference to build its own custom pubsub node tree
%%% types.</p>
%%% <p>PubSub node tree plugins are using the {@link gen_nodetree} behaviour.</p>
%%% <p><strong>The API isn't stabilized yet</strong>. The pubsub plugin
%%% development is still a work in progress. However, the system is already
%%% useable and useful as is. Please, send us comments, feedback and
%%% improvements.</p>
-module(nodetree_default).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_nodetree).
-export([init/3,
terminate/2,
options/0,
set_node/1,
get_node/2,
get_nodes/1,
get_subnodes/2,
get_subnodes_tree/2,
create_node/5,
delete_node/2
]).
%% ================
%% API definition
%% ================
%% @spec (Host) -> any()
%% Host = mod_pubsub:host()
%% ServerHost = host()
%% Opts = list()
%% @doc <p>Called during pubsub modules initialisation. Any pubsub plugin must
%% implement this function. It can return anything.</p>
%% <p>This function is mainly used to trigger the setup task necessary for the
%% plugin. It can be used for example by the developer to create the specific
%% module database schema if it does not exists yet.</p>
init(_Host, _ServerHost, _Opts) ->
mnesia:create_table(pubsub_node,
[{disc_copies, [node()]},
{attributes, record_info(fields, pubsub_node)},
{index, [type,parentid]}]),
NodesFields = record_info(fields, pubsub_node),
case mnesia:table_info(pubsub_node, attributes) of
NodesFields -> ok;
_ -> mnesia:transform_table(pubsub_node, ignore, NodesFields)
end,
ok.
terminate(_Host, _ServerHost) ->
ok.
%% @spec () -> [Option]
%% Option = mod_pubsub:nodetreeOption()
%% @doc Returns the default pubsub node tree options.
options() ->
[{virtual_tree, false}].
%% @spec (NodeRecord) -> ok | {error, Reason}
%% Record = mod_pubsub:pubsub_node()
set_node(Record) when is_record(Record, pubsub_node) ->
mnesia:write(Record);
set_node(_) ->
{error, ?ERR_INTERNAL_SERVER_ERROR}.
%% @spec (Host, Node) -> pubsubNode() | {error, Reason}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
get_node(Host, Node) ->
case catch mnesia:read({pubsub_node, {Host, Node}}) of
[Record] when is_record(Record, pubsub_node) -> Record;
[] -> {error, ?ERR_ITEM_NOT_FOUND};
Error -> Error
end.
%% @spec (Key) -> [pubsubNode()] | {error, Reason}
%% Key = mod_pubsub:host() | mod_pubsub:jid()
get_nodes(Key) ->
mnesia:match_object(#pubsub_node{nodeid = {Key, '_'}, _ = '_'}).
%% @spec (Host, Index) -> [pubsubNode()] | {error, Reason}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
get_subnodes(Host, Node) ->
mnesia:index_read(pubsub_node, {Host, Node}, #pubsub_node.parentid).
%% @spec (Host, Index) -> [pubsubNode()] | {error, Reason}
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
get_subnodes_tree(Host, Node) ->
mnesia:foldl(fun(#pubsub_node{nodeid = {H, N}}, Acc) ->
case lists:prefix(Node, N) and (H == Host) of
true -> [N | Acc];
_ -> Acc
end
end, [], pubsub_node).
%% @spec (Key, Node, Type, Owner, Options) -> ok | {error, Reason}
%% Key = mod_pubsub:host() | mod_pubsub:jid()
%% Node = mod_pubsub:pubsubNode()
%% NodeType = mod_pubsub:nodeType()
%% Owner = mod_pubsub:jid()
%% Options = list()
create_node(Key, Node, Type, Owner, Options) ->
OwnerKey = jlib:jid_tolower(jlib:jid_remove_resource(Owner)),
case mnesia:read({pubsub_node, {Key, Node}}) of
[] ->
Parent = lists:sublist(Node, length(Node) - 1),
ParentExists =
case Key of
{_U, _S, _R} ->
%% This is special case for PEP handling
%% PEP does not uses hierarchy
true;
_ ->
(Parent == []) orelse
case mnesia:read({pubsub_node, {Key, Parent}}) of
[] -> false;
_ -> true
end
end,
case ParentExists of
true ->
%% Service requires registration
%%{error, ?ERR_REGISTRATION_REQUIRED};
mnesia:write(#pubsub_node{nodeid = {Key, Node},
parentid = {Key, Parent},
type = Type,
owners = [OwnerKey],
options = Options});
false ->
%% Requesting entity is prohibited from creating nodes
{error, ?ERR_FORBIDDEN}
end;
_ ->
%% NodeID already exists
{error, ?ERR_CONFLICT}
end.
%% @spec (Key, Node) -> [mod_pubsub:node()]
%% Key = mod_pubsub:host() | mod_pubsub:jid()
%% Node = mod_pubsub:pubsubNode()
delete_node(Key, Node) ->
Removed = get_subnodes_tree(Key, Node),
lists:foreach(fun(N) ->
mnesia:delete({pubsub_node, {Key, N}})
end, Removed),
Removed.

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%%% ====================================================================
%%% This software is copyright 2007, Process-one.
%%%
%%% @copyright 2007 Process-one
%%% @author Christophe Romain <christophe.romain@process-one.net>
%%% [http://www.process-one.net/]
%%% @version {@vsn}, {@date} {@time}
%%% @end
%%% ====================================================================
%%% @doc The module <strong>{@module}</strong> is the PubSub node tree plugin that
%%% allow virtual nodes handling.
%%% <p>PubSub node tree plugins are using the {@link gen_nodetree} behaviour.</p>
%%% <p><strong>The API isn't stabilized yet</strong>. The pubsub plugin
%%% development is still a work in progress. However, the system is already
%%% useable and useful as is. Please, send us comments, feedback and
%%% improvements.</p>
-module(nodetree_virtual).
-author('christophe.romain@process-one.net').
-include("pubsub.hrl").
-include("jlib.hrl").
-behaviour(gen_pubsub_nodetree).
-export([init/3,
terminate/2,
options/0,
set_node/1,
get_node/2,
get_nodes/1,
get_subnodes/2,
get_subnodes_tree/2,
create_node/5,
delete_node/2
]).
%% ================
%% API definition
%% ================
%% @spec (Host) -> any()
%% Host = mod_pubsub:host()
%% ServerHost = host()
%% Opts = list()
%% @doc <p>Called during pubsub modules initialisation. Any pubsub plugin must
%% implement this function. It can return anything.</p>
%% <p>This function is mainly used to trigger the setup task necessary for the
%% plugin. It can be used for example by the developer to create the specific
%% module database schema if it does not exists yet.</p>
init(_Host, _ServerHost, _Opts) ->
ok.
terminate(_Host, _ServerHost) ->
ok.
%% @spec () -> [Option]
%% Option = mod_pubsub:nodetreeOption()
%% @doc <p>Returns the default pubsub node tree options.</p>
options() ->
[{virtual_tree, true}].
%% @spec (NodeRecord) -> ok | {error, Reason}
%% NodeRecord = mod_pubsub:pubsub_node()
%% @doc <p>No node record is stored on database. Just do nothing.</p>
set_node(_NodeRecord) ->
ok.
%% @spec (Host, Node) -> pubsubNode()
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% @doc <p>Virtual node tree does not handle a node database. Any node is considered
%% as existing. Node record contains default values.</p>
get_node(Host, Node) ->
#pubsub_node{nodeid = {Host, Node}}.
%% @spec (Key) -> [pubsubNode()]
%% Host = mod_pubsub:host() | mod_pubsub:jid()
%% @doc <p>Virtual node tree does not handle a node database. Any node is considered
%% as existing. Nodes list can not be determined.</p>
get_nodes(_Key) ->
[].
%% @spec (Host, Index) -> [pubsubNode()]
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% @doc <p>Virtual node tree does not handle parent/child. Child list is empty.</p>
get_subnodes(_Host, _Node) ->
[].
%% @spec (Host, Index) -> [pubsubNode()]
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% @doc <p>Virtual node tree does not handle parent/child. Child list is empty.</p>
get_subnodes_tree(_Host, _Node) ->
[].
%% @spec (Host, Node, Type, Owner, Options) -> ok
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% Type = mod_pubsub:nodeType()
%% Owner = mod_pubsub:jid()
%% Options = list()
%% @doc <p>No node record is stored on database. Any valid node
%% is considered as already created.</p>
%% <p>default allowed nodes: /home/host/user/any/node/name</p>
create_node(_Host, Node, _Type, {UserName, UserHost, _}, _Options) ->
case Node of
["home", UserHost, UserName | _] -> {error, ?ERR_CONFLICT};
_ -> {error, ?ERR_NOT_ALLOWED}
end.
%% @spec (Host, Node) -> [mod_pubsub:node()]
%% Host = mod_pubsub:host()
%% Node = mod_pubsub:pubsubNode()
%% @doc <p>Virtual node tree does not handle parent/child.
%% node deletion just affects the corresponding node.</p>
delete_node(_Host, Node) ->
[Node].

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%%% ====================================================================
%%% This software is copyright 2006, Process-one.
%%%
%%% This file contains pubsub types definition.
%%% ====================================================================
%% -------------------------------
%% Pubsub constants
-define(PUBSUB_JID, {jid, "", Host, "", "", Host, ""}).
-define(ERR_EXTENDED(E,C), mod_pubsub:extended_error(E,C)).
% TODO: move to jlib.hrl
-define(NS_PUBSUB_NODE_CONFIG, "http://jabber.org/protocol/pubsub#node_config").
-define(NS_PUBSUB_SUB_AUTH, "http://jabber.org/protocol/pubsub#subscribe_authorization").
%% this is currently a hard limit.
%% Would be nice to have it configurable.
-define(MAXITEMS, 20).
-define(MAX_PAYLOAD_SIZE, 60000).
%% -------------------------------
%% Pubsub types
%%% @type host() = string().
%%% <p><tt>host</tt> is the name of the PubSub service. For example, it can be
%%% <tt>"pubsub.localhost"</tt>.</p>
%%% @type pubsubNode() = [string()].
%%% <p>A node is defined by a list of its ancestors. The last element is the name
%%% of the current node. For example:
%%% ```["home", "localhost", "cromain", "node1"]'''</p>
%%% @type stanzaError() = #xmlelement{}.
%%% Example:
%%% ```{xmlelement, "error",
%%% [{"code", Code}, {"type", Type}],
%%% [{xmlelement, Condition, [{"xmlns", ?NS_STANZAS}], []}]}'''
%%% @type pubsubIQResponse() = #xmlelement{}.
%%% Example:
%%% ```{xmlelement, "pubsub",
%%% [{"xmlns", ?NS_PUBSUB_EVENT}],
%%% [{xmlelement, "affiliations", [],
%%% []}]}'''
%%% @type nodeOption() = {Option::atom(), Value::term()}.
%%% Example:
%%% ```{deliver_payloads, true}'''
%%% @type nodeType() = string().
%%% <p>The <tt>nodeType</tt> is a string containing the name of the PubSub
%%% plugin to use to manage a given node. For example, it can be
%%% <tt>"default"</tt>, <tt>"collection"</tt> or <tt>"blog"</tt>.</p>
%%% @type jid() = #jid{
%%% user = string(),
%%% server = string(),
%%% resource = string(),
%%% luser = string(),
%%% lserver = string(),
%%% lresource = string()}.
%%% @type usr() = {User::string(), Server::string(), Resource::string()}.
%%% @type affiliation() = none | owner | publisher | outcast.
%%% @type subscription() = none | pending | unconfigured | subscribed.
%%% @type pubsubNode() = #pubsub_node{
%%% nodeid = {Host::host(), Node::pubsubNode()},
%%% parentid = {Host::host(), Node::pubsubNode()},
%%% type = nodeType(),
%%% owners = [usr()],
%%% options = [nodeOption()]}.
%%% <p>This is the format of the <tt>nodes</tt> table. The type of the table
%%% is: <tt>set</tt>,<tt>ram/disc</tt>.</p>
%%% <p>The <tt>parentid</tt> and <tt>type</tt> fields are indexed.</p>
-record(pubsub_node, {nodeid,
parentid = {},
type = "",
owners = [],
options = []
}).
%%% @type pubsubState() = #pubsub_state{
%%% stateid = {jid(), {Host::host(), Node::pubsubNode()}},
%%% items = [ItemId::string()],
%%% affiliation = affiliation(),
%%% subscription = subscription()}.
%%% <p>This is the format of the <tt>affiliations</tt> table. The type of the
%%% table is: <tt>set</tt>,<tt>ram/disc</tt>.</p>
-record(pubsub_state, {stateid,
items = [],
affiliation = none,
subscription = none
}).
%% @type pubsubItem() = #pubsub_item{
%% itemid = {ItemId::string(), {Host::host(),Node::pubsubNode()}},
%% creation = {JID::jid(), now()},
%% modification = {JID::jid(), now()},
%% payload = XMLContent::string()}.
%%% <p>This is the format of the <tt>published items</tt> table. The type of the
%%% table is: <tt>set</tt>,<tt>disc</tt>,<tt>fragmented</tt>.</p>
-record(pubsub_item, {itemid,
creation = {unknown,unknown},
modification = {unknown,unknown},
payload = []
}).
%% @type pubsubPresence() = #pubsub_presence{
%% key = {Host::host(), User::string(), Server::string()},
%% presence = list().
%%% <p>This is the format of the <tt>published presence</tt> table. The type of the
%%% table is: <tt>set</tt>,<tt>ram</tt>.</p>
-record(pubsub_presence, {key,
resource
}).