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xmpp.chapril.org-ejabberd/src/mod_roster_odbc.erl
Badlop 007cafa7cd Fix EDoc errors. 
SVN Revision: 2495
2009-08-17 17:17:34 +00:00

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%%%----------------------------------------------------------------------
%%% File : mod_roster_odbc.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : Roster management
%%% Created : 15 Dec 2004 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2009 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License
%%% along with this program; if not, write to the Free Software
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%%
%%%----------------------------------------------------------------------
%%% @doc Roster management (Mnesia storage).
%%%
%%% Includes support for XEP-0237: Roster Versioning.
%%% The roster versioning follows an all-or-nothing strategy:
%%% - If the version supplied by the client is the latest, return an empty response.
%%% - If not, return the entire new roster (with updated version string).
%%% Roster version is a hash digest of the entire roster.
%%% No additional data is stored in DB.
-module(mod_roster_odbc).
-author('alexey@process-one.net').
-behaviour(gen_mod).
-export([start/2, stop/1,
process_iq/3,
process_local_iq/3,
get_user_roster/2,
get_subscription_lists/3,
get_in_pending_subscriptions/3,
in_subscription/6,
out_subscription/4,
set_items/3,
remove_user/2,
get_jid_info/4,
webadmin_page/3,
webadmin_user/4,
get_versioning_feature/2,
roster_versioning_enabled/1]).
-include_lib("exmpp/include/exmpp.hrl").
-include("ejabberd.hrl").
-include("mod_roster.hrl").
-include("web/ejabberd_http.hrl").
-include("web/ejabberd_web_admin.hrl").
-define(NS_ROSTER_VER, "urn:xmpp:features:rosterver").
start(Host, Opts) ->
HostB = list_to_binary(Host),
IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
ejabberd_hooks:add(roster_get, HostB,
?MODULE, get_user_roster, 50),
ejabberd_hooks:add(roster_in_subscription, HostB,
?MODULE, in_subscription, 50),
ejabberd_hooks:add(roster_out_subscription, HostB,
?MODULE, out_subscription, 50),
ejabberd_hooks:add(roster_get_subscription_lists, HostB,
?MODULE, get_subscription_lists, 50),
ejabberd_hooks:add(roster_get_jid_info, HostB,
?MODULE, get_jid_info, 50),
ejabberd_hooks:add(remove_user, HostB,
?MODULE, remove_user, 50),
ejabberd_hooks:add(anonymous_purge_hook, HostB,
?MODULE, remove_user, 50),
ejabberd_hooks:add(resend_subscription_requests_hook, HostB,
?MODULE, get_in_pending_subscriptions, 50),
ejabberd_hooks:add(roster_get_versioning_feature, HostB,
?MODULE, get_versioning_feature, 50),
ejabberd_hooks:add(webadmin_page_host, HostB,
?MODULE, webadmin_page, 50),
ejabberd_hooks:add(webadmin_user, HostB,
?MODULE, webadmin_user, 50),
gen_iq_handler:add_iq_handler(ejabberd_sm, HostB, ?NS_ROSTER,
?MODULE, process_iq, IQDisc).
stop(Host) ->
HostB = list_to_binary(Host),
ejabberd_hooks:delete(roster_get, HostB,
?MODULE, get_user_roster, 50),
ejabberd_hooks:delete(roster_in_subscription, HostB,
?MODULE, in_subscription, 50),
ejabberd_hooks:delete(roster_out_subscription, HostB,
?MODULE, out_subscription, 50),
ejabberd_hooks:delete(roster_get_subscription_lists, HostB,
?MODULE, get_subscription_lists, 50),
ejabberd_hooks:delete(roster_get_jid_info, HostB,
?MODULE, get_jid_info, 50),
ejabberd_hooks:delete(remove_user, HostB,
?MODULE, remove_user, 50),
ejabberd_hooks:delete(anonymous_purge_hook, HostB,
?MODULE, remove_user, 50),
ejabberd_hooks:delete(resend_subscription_requests_hook, HostB,
?MODULE, get_in_pending_subscriptions, 50),
ejabberd_hooks:delete(roster_get_versioning_feature, HostB,
?MODULE, get_versioning_feature, 50),
ejabberd_hooks:delete(webadmin_page_host, HostB,
?MODULE, webadmin_page, 50),
ejabberd_hooks:delete(webadmin_user, HostB,
?MODULE, webadmin_user, 50),
gen_iq_handler:remove_iq_handler(ejabberd_sm, HostB, ?NS_ROSTER).
process_iq(From, To, IQ_Rec) ->
LServer = exmpp_jid:prep_domain_as_list(From),
case lists:member(LServer, ?MYHOSTS) of
true ->
process_local_iq(From, To, IQ_Rec);
_ ->
exmpp_iq:error(IQ_Rec, 'item-not-found')
end.
process_local_iq(From, To, #iq{type = get} = IQ_Rec) ->
process_iq_get(From, To, IQ_Rec);
process_local_iq(From, To, #iq{type = set} = IQ_Rec) ->
process_iq_set(From, To, IQ_Rec).
roster_hash(Items) ->
sha:sha(term_to_binary(
lists:sort(
[R#roster{groups = lists:sort(Grs)} ||
R = #roster{groups = Grs} <- Items]))).
%% @spec (Host::binary()) -> true | false
roster_versioning_enabled(Host) ->
gen_mod:get_module_opt(binary_to_list(Host), ?MODULE, versioning, false).
%% @spec (Host::binary()) -> true | false
roster_version_on_db(Host) ->
gen_mod:get_module_opt(binary_to_list(Host), ?MODULE, store_current_id, false).
%% Returns a list that may contain an xmlelement with the XEP-237 feature if it's enabled.
get_versioning_feature(Acc, Host) ->
case roster_versioning_enabled(Host) of
true ->
Feature = exmpp_xml:element(?NS_ROSTER_VER, 'ver', [],
[exmpp_xml:element(?NS_ROSTER_VER, 'optional')]),
[Feature | Acc];
false -> []
end.
roster_version(LServer ,LUser) ->
US = {LUser, LServer},
case roster_version_on_db(LServer) of
true ->
case odbc_queries:get_roster_version(ejabberd_odbc:escape(LServer), ejabberd_odbc:escape(LUser)) of
{selected, ["version"], [{Version}]} -> Version;
{selected, ["version"], []} -> not_found
end;
false ->
roster_hash(ejabberd_hooks:run_fold(roster_get, LServer, [], [US]))
end.
%% Load roster from DB only if neccesary.
%% It is neccesary if
%% - roster versioning is disabled in server OR
%% - roster versioning is not used by the client OR
%% - roster versioning is used by server and client, BUT the server isn't storing versions on db OR
%% - the roster version from client don't match current version.
process_iq_get(From, To, IQ_Rec) ->
US = {LUser, LServer} = {exmpp_jid:prep_node(From), exmpp_jid:prep_domain(From)},
try
{ItemsToSend, VersionToSend} =
case {exmpp_xml:get_attribute_as_list(exmpp_iq:get_request(IQ_Rec), ver, not_found),
roster_versioning_enabled(LServer),
roster_version_on_db(LServer)} of
{not_found, _ , _} ->
{lists:map(fun item_to_xml/1,
ejabberd_hooks:run_fold(roster_get, exmpp_jid:prep_domain(To), [], [US])), false};
{_, false, _} ->
{lists:map(fun item_to_xml/1,
ejabberd_hooks:run_fold(roster_get, exmpp_jid:prep_domain(To), [], [US])), false};
{RequestedVersion, true, true} ->
%% Retrieve version from DB. Only load entire roster
%% when neccesary.
case odbc_queries:get_roster_version(ejabberd_odbc:escape(LServer), ejabberd_odbc:escape(LUser)) of
{selected, ["version"], [{RequestedVersion}]} ->
{false, false};
{selected, ["version"], [{NewVersion}]} ->
{lists:map(fun item_to_xml/1,
ejabberd_hooks:run_fold(roster_get, exmpp_jid:prep_domain(To), [], [US])), NewVersion};
{selected, ["version"], []} ->
RosterVersion = sha:sha(term_to_binary(now())),
{atomic, {updated,1}} = odbc_queries:sql_transaction(binary_to_list(LServer), fun() ->
odbc_queries:set_roster_version(ejabberd_odbc:escape(LUser), RosterVersion)
end),
{lists:map(fun item_to_xml/1,
ejabberd_hooks:run_fold(roster_get, exmpp_jid:prep_domain(To), [], [US])), RosterVersion}
end;
{RequestedVersion, true, false} ->
RosterItems = ejabberd_hooks:run_fold(roster_get, exmpp_jid:prep_domain(To), [] , [US]),
case roster_hash(RosterItems) of
RequestedVersion ->
{false, false};
New ->
{lists:map(fun item_to_xml/1, RosterItems), New}
end
end,
case {ItemsToSend, VersionToSend} of
{false, false} ->
exmpp_iq:result(IQ_Rec);
{Items, false} ->
exmpp_iq:result(IQ_Rec, exmpp_xml:element(?NS_ROSTER, 'query', [] , Items));
{Items, Version} ->
exmpp_iq:result(IQ_Rec, exmpp_xml:element(?NS_ROSTER, 'query', [?XMLATTR('ver', Version)], Items))
end
catch
_:_ ->
exmpp_iq:error(IQ_Rec, 'internal-server-error')
end.
get_user_roster(Acc, {LUser, LServer}) ->
Items = get_roster(LUser, LServer),
lists:filter(fun(#roster{subscription = none, ask = in}) ->
false;
(_) ->
true
end, Items) ++ Acc.
get_roster(LUser, LServer) when is_binary(LUser), is_binary(LServer)->
Username = ejabberd_odbc:escape(LUser),
DomainString = binary_to_list(LServer),
case catch odbc_queries:get_roster(DomainString, Username) of
{selected, ["username", "jid", "nick", "subscription", "ask",
"askmessage", "server", "subscribe", "type"],
Items} when is_list(Items) ->
JIDGroups = case catch odbc_queries:get_roster_jid_groups(DomainString, Username) of
{selected, ["jid","grp"], JGrps}
when is_list(JGrps) ->
[{list_to_binary(S), list_to_binary(G)} || {S, G} <- JGrps];
_ ->
[]
end,
RItems = lists:flatmap(
fun(I) ->
case raw_to_record(LServer, I) of
%% Bad JID in database:
error ->
[];
R ->
{U2, S2, R2} = R#roster.jid,
SJID = exmpp_jid:to_binary(U2, S2, R2),
Groups = lists:flatmap(
fun({S, G}) when S == SJID ->
[G];
(_) ->
[]
end, JIDGroups),
[R#roster{groups = Groups}]
end
end, Items),
RItems;
_ ->
[]
end.
item_to_xml(Item) ->
{U, S, R} = Item#roster.jid,
Attrs1 = exmpp_xml:set_attribute_in_list([],
'jid', exmpp_jid:to_binary(U, S, R)),
Attrs2 = case Item#roster.name of
<<>> ->
Attrs1;
Name ->
exmpp_xml:set_attribute_in_list(Attrs1, 'name', Name)
end,
Attrs3 = exmpp_xml:set_attribute_in_list(Attrs2,
'subscription', Item#roster.subscription),
Attrs = case ask_to_pending(Item#roster.ask) of
out ->
exmpp_xml:set_attribute_in_list(Attrs3,
'ask', <<"subscribe">>);
both ->
exmpp_xml:set_attribute_in_list(Attrs3,
'ask', <<"subscribe">>);
_ ->
Attrs3
end,
SubEls = lists:map(fun(G) ->
exmpp_xml:set_cdata(
#xmlel{ns = ?NS_ROSTER, name = 'group'}, G)
end, Item#roster.groups),
#xmlel{ns = ?NS_ROSTER, name = 'item', attrs = Attrs, children = SubEls}.
process_iq_set(From, To, #iq{payload = Request} = IQ_Rec) ->
case Request of
#xmlel{children = Els} ->
lists:foreach(fun(El) -> process_item_set(From, To, El) end, Els);
_ ->
ok
end,
exmpp_iq:result(IQ_Rec).
process_item_set(From, To, #xmlel{} = El) ->
try
JID1 = exmpp_jid:parse(exmpp_xml:get_attribute_as_binary(El, 'jid', <<>>)),
User = exmpp_jid:prep_node(From),
Server = exmpp_jid:prep_domain(From),
LServer = binary_to_list(Server),
{U0, S0, R0} = LJID = jlib:short_prepd_jid(JID1),
Username = ejabberd_odbc:escape(User),
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(U0, S0, R0)),
F = fun() ->
{selected,
["username", "jid", "nick", "subscription",
"ask", "askmessage", "server", "subscribe", "type"],
Res} = odbc_queries:get_roster_by_jid(LServer, Username, SJID),
Item = case Res of
[] ->
#roster{usj = {User, Server, LJID},
us = {User, Server},
jid = LJID};
[I] ->
R = raw_to_record(exmpp_jid:prep_domain(From), I),
case R of
%% Bad JID in database:
error ->
#roster{usj = {User, Server, LJID},
us = {User, Server},
jid = LJID};
_ ->
R#roster{
usj = {User, Server, LJID},
us = {User, Server},
jid = LJID,
name = <<>>}
end
end,
Item1 = process_item_attrs(Item, El#xmlel.attrs),
Item2 = process_item_els(Item1, El#xmlel.children),
case Item2#roster.subscription of
remove ->
odbc_queries:del_roster(LServer, Username, SJID);
_ ->
ItemVals = record_to_string(Item2),
ItemGroups = groups_to_string(Item2),
odbc_queries:update_roster(LServer, Username, SJID, ItemVals, ItemGroups)
end,
%% If the item exist in shared roster, take the
%% subscription information from there:
Item3 = ejabberd_hooks:run_fold(roster_process_item,
exmpp_jid:prep_domain(From), Item2, [exmpp_jid:prep_domain(From)]),
case roster_version_on_db(Server) of
true -> odbc_queries:set_roster_version(Username, sha:sha(term_to_binary(now())));
false -> ok
end,
{Item, Item3}
end,
case odbc_queries:sql_transaction(LServer, F) of
{atomic, {OldItem, Item}} ->
push_item(exmpp_jid:node(From), exmpp_jid:prep_domain(From), To, Item),
case Item#roster.subscription of
remove ->
IsTo = case OldItem#roster.subscription of
both -> true;
to -> true;
_ -> false
end,
IsFrom = case OldItem#roster.subscription of
both -> true;
from -> true;
_ -> false
end,
{U, S, R} = OldItem#roster.jid,
if IsTo ->
ejabberd_router:route(
exmpp_jid:bare(From),
exmpp_jid:make(U, S, R),
exmpp_presence:unsubscribe());
true -> ok
end,
if IsFrom ->
ejabberd_router:route(
exmpp_jid:bare(From),
exmpp_jid:make(U, S, R),
exmpp_presence:unsubscribed());
true -> ok
end,
ok;
_ ->
ok
end;
E ->
?DEBUG("ROSTER: roster item set error: ~p~n", [E]),
ok
end
catch
_ ->
ok
end;
process_item_set(_From, _To, _) ->
ok.
process_item_attrs(Item, [#xmlattr{name = Attr, value = Val} | Attrs]) ->
case Attr of
'name' ->
process_item_attrs(Item#roster{name = Val}, Attrs);
'subscription' ->
case Val of
<<"remove">> ->
process_item_attrs(Item#roster{subscription = remove},
Attrs);
_ ->
process_item_attrs(Item, Attrs)
end;
'ask' ->
process_item_attrs(Item, Attrs);
_ ->
process_item_attrs(Item, Attrs)
end;
process_item_attrs(Item, []) ->
Item.
process_item_els(Item, [#xmlel{name = Name} = El | Els]) ->
case Name of
'group' ->
Groups = [exmpp_xml:get_cdata(El) | Item#roster.groups],
process_item_els(Item#roster{groups = Groups}, Els);
_ ->
process_item_els(Item, Els)
end;
process_item_els(Item, [_ | Els]) ->
process_item_els(Item, Els);
process_item_els(Item, []) ->
Item.
push_item(User, Server, From, Item) when is_binary(User), is_binary(Server) ->
ejabberd_sm:route(exmpp_jid:make(),
exmpp_jid:make(User, Server),
#xmlel{name = 'broadcast', children =
[{item,
Item#roster.jid,
Item#roster.subscription}]}),
case roster_versioning_enabled(Server) of
true ->
push_item_version(Server, User, From, Item, roster_version(Server, User));
false ->
lists:foreach(fun(Resource) ->
push_item(User, Server, Resource, From, Item)
end, ejabberd_sm:get_user_resources(User, Server))
end.
% TODO: don't push to those who not load roster
push_item(User, Server, Resource, From, Item) ->
Request = #xmlel{ns = ?NS_ROSTER, name = 'query',
children = [item_to_xml(Item)]},
ResIQ = exmpp_iq:set(?NS_JABBER_CLIENT, Request,
"push" ++ randoms:get_string()),
ejabberd_router:route(
From,
exmpp_jid:make(User, Server, Resource),
ResIQ).
%% @doc Roster push, calculate and include the version attribute.
%% TODO: don't push to those who didn't load roster
push_item_version(Server, User, From, Item, RosterVersion) ->
lists:foreach(fun(Resource) ->
push_item_version(User, Server, Resource, From, Item, RosterVersion)
end, ejabberd_sm:get_user_resources(User, Server)).
push_item_version(User, Server, Resource, From, Item, RosterVersion) ->
Request = #xmlel{ns = ?NS_ROSTER, name = 'query', attrs = [?XMLATTR('ver', RosterVersion)],
children = [mod_roster:item_to_xml(Item)]},
ResIQ = exmpp_iq:set(?NS_JABBER_CLIENT, Request,
"push" ++ randoms:get_string()),
ejabberd_router:route(
From,
exmpp_jid:make(User, Server, Resource),
ResIQ).
get_subscription_lists(_, User, Server)
when is_binary(User), is_binary(Server) ->
try
LServer = binary_to_list(Server),
Username = ejabberd_odbc:escape(User),
case catch odbc_queries:get_roster(LServer, Username) of
{selected, ["username", "jid", "nick", "subscription", "ask",
"askmessage", "server", "subscribe", "type"],
Items} when is_list(Items) ->
fill_subscription_lists(Server, Items, [], []);
_ ->
{[], []}
end
catch
_ ->
{[], []}
end.
fill_subscription_lists(LServer, [RawI | Is], F, T) ->
I = raw_to_record(LServer, RawI),
case I of
%% Bad JID in database:
error ->
fill_subscription_lists(LServer, Is, F, T);
_ ->
J = I#roster.jid,
case I#roster.subscription of
both ->
fill_subscription_lists(LServer, Is, [J | F], [J | T]);
from ->
fill_subscription_lists(LServer, Is, [J | F], T);
to ->
fill_subscription_lists(LServer, Is, F, [J | T]);
_ ->
fill_subscription_lists(LServer, Is, F, T)
end
end;
fill_subscription_lists(_LServer, [], F, T) ->
{F, T}.
ask_to_pending(subscribe) -> out;
ask_to_pending(unsubscribe) -> none;
ask_to_pending(Ask) -> Ask.
in_subscription(_, User, Server, JID, Type, Reason) ->
process_subscription(in, User, Server, JID, Type, Reason).
out_subscription(User, Server, JID, Type) ->
process_subscription(out, User, Server, JID, Type, <<>>).
process_subscription(Direction, User, Server, JID1, Type, Reason)
when is_binary(User), is_binary(Server) ->
try
LServer = binary_to_list(Server),
{N0,D0,R0} = LJID = jlib:short_prepd_jid(JID1),
Username = ejabberd_odbc:escape(User),
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(N0,D0,R0)),
F = fun() ->
Item =
case odbc_queries:get_roster_by_jid(LServer, Username, SJID) of
{selected,
["username", "jid", "nick", "subscription", "ask",
"askmessage", "server", "subscribe", "type"],
[I]} ->
%% raw_to_record can return error, but
%% jlib_to_string would fail before this point
R = raw_to_record(list_to_binary(LServer), I),
Groups =
case odbc_queries:get_roster_groups(LServer, Username, SJID) of
{selected, ["grp"], JGrps} when is_list(JGrps) ->
[list_to_binary(JGrp) || {JGrp} <- JGrps];
_ ->
[]
end,
R#roster{groups = Groups};
{selected,
["username", "jid", "nick", "subscription", "ask",
"askmessage", "server", "subscribe", "type"],
[]} ->
#roster{usj = {User, Server, LJID},
us = {User, Server},
jid = LJID}
end,
NewState = case Direction of
out ->
out_state_change(Item#roster.subscription,
Item#roster.ask,
Type);
in ->
in_state_change(Item#roster.subscription,
Item#roster.ask,
Type)
end,
AutoReply = case Direction of
out ->
none;
in ->
in_auto_reply(Item#roster.subscription,
Item#roster.ask,
Type)
end,
AskMessage = case NewState of
{_, both} -> Reason;
{_, in} -> Reason;
_ -> <<>>
end,
case NewState of
none ->
{none, AutoReply};
{none, none} when Item#roster.subscription == none,
Item#roster.ask == in ->
odbc_queries:del_roster(LServer, Username, SJID),
{none, AutoReply};
{Subscription, Pending} ->
AskBinary = case AskMessage of
undefined -> <<>>;
B -> B
end,
NewItem = Item#roster{subscription = Subscription,
ask = Pending,
askmessage = AskBinary},
ItemVals = record_to_string(NewItem),
odbc_queries:roster_subscribe(LServer, Username, SJID, ItemVals),
case roster_version_on_db(Server) of
true -> odbc_queries:set_roster_version(Username, sha:sha(term_to_binary(now())));
false -> ok
end,
{{push, NewItem}, AutoReply}
end
end,
case odbc_queries:sql_transaction(LServer, F) of
{atomic, {Push, AutoReply}} ->
case AutoReply of
none ->
ok;
_ ->
ejabberd_router:route(
exmpp_jid:make(User, Server), JID1,
exmpp_presence:AutoReply())
end,
case Push of
{push, Item} ->
if
Item#roster.subscription == none,
Item#roster.ask == in ->
ok;
true ->
push_item(User, Server,
exmpp_jid:make(User, Server), Item)
end,
true;
none ->
false
end;
_ ->
false
end
catch
_ ->
false
end.
%% in_state_change(Subscription, Pending, Type) -> NewState
%% NewState = none | {NewSubscription, NewPending}
-ifdef(ROSTER_GATEWAY_WORKAROUND).
-define(NNSD, {to, none}).
-define(NISD, {to, in}).
-else.
-define(NNSD, none).
-define(NISD, none).
-endif.
in_state_change(none, none, subscribe) -> {none, in};
in_state_change(none, none, subscribed) -> ?NNSD;
in_state_change(none, none, unsubscribe) -> none;
in_state_change(none, none, unsubscribed) -> none;
in_state_change(none, out, subscribe) -> {none, both};
in_state_change(none, out, subscribed) -> {to, none};
in_state_change(none, out, unsubscribe) -> none;
in_state_change(none, out, unsubscribed) -> {none, none};
in_state_change(none, in, subscribe) -> none;
in_state_change(none, in, subscribed) -> ?NISD;
in_state_change(none, in, unsubscribe) -> {none, none};
in_state_change(none, in, unsubscribed) -> none;
in_state_change(none, both, subscribe) -> none;
in_state_change(none, both, subscribed) -> {to, in};
in_state_change(none, both, unsubscribe) -> {none, out};
in_state_change(none, both, unsubscribed) -> {none, in};
in_state_change(to, none, subscribe) -> {to, in};
in_state_change(to, none, subscribed) -> none;
in_state_change(to, none, unsubscribe) -> none;
in_state_change(to, none, unsubscribed) -> {none, none};
in_state_change(to, in, subscribe) -> none;
in_state_change(to, in, subscribed) -> none;
in_state_change(to, in, unsubscribe) -> {to, none};
in_state_change(to, in, unsubscribed) -> {none, in};
in_state_change(from, none, subscribe) -> none;
in_state_change(from, none, subscribed) -> none;
in_state_change(from, none, unsubscribe) -> {none, none};
in_state_change(from, none, unsubscribed) -> none;
in_state_change(from, out, subscribe) -> none;
in_state_change(from, out, subscribed) -> {both, none};
in_state_change(from, out, unsubscribe) -> {none, out};
in_state_change(from, out, unsubscribed) -> {from, none};
in_state_change(both, none, subscribe) -> none;
in_state_change(both, none, subscribed) -> none;
in_state_change(both, none, unsubscribe) -> {to, none};
in_state_change(both, none, unsubscribed) -> {from, none}.
out_state_change(none, none, subscribe) -> {none, out};
out_state_change(none, none, subscribed) -> none;
out_state_change(none, none, unsubscribe) -> none;
out_state_change(none, none, unsubscribed) -> none;
out_state_change(none, out, subscribe) -> {none, out}; %% We need to resend query (RFC3921, section 9.2)
out_state_change(none, out, subscribed) -> none;
out_state_change(none, out, unsubscribe) -> {none, none};
out_state_change(none, out, unsubscribed) -> none;
out_state_change(none, in, subscribe) -> {none, both};
out_state_change(none, in, subscribed) -> {from, none};
out_state_change(none, in, unsubscribe) -> none;
out_state_change(none, in, unsubscribed) -> {none, none};
out_state_change(none, both, subscribe) -> none;
out_state_change(none, both, subscribed) -> {from, out};
out_state_change(none, both, unsubscribe) -> {none, in};
out_state_change(none, both, unsubscribed) -> {none, out};
out_state_change(to, none, subscribe) -> none;
out_state_change(to, none, subscribed) -> none;
out_state_change(to, none, unsubscribe) -> {none, none};
out_state_change(to, none, unsubscribed) -> none;
out_state_change(to, in, subscribe) -> none;
out_state_change(to, in, subscribed) -> {both, none};
out_state_change(to, in, unsubscribe) -> {none, in};
out_state_change(to, in, unsubscribed) -> {to, none};
out_state_change(from, none, subscribe) -> {from, out};
out_state_change(from, none, subscribed) -> none;
out_state_change(from, none, unsubscribe) -> none;
out_state_change(from, none, unsubscribed) -> {none, none};
out_state_change(from, out, subscribe) -> none;
out_state_change(from, out, subscribed) -> none;
out_state_change(from, out, unsubscribe) -> {from, none};
out_state_change(from, out, unsubscribed) -> {none, out};
out_state_change(both, none, subscribe) -> none;
out_state_change(both, none, subscribed) -> none;
out_state_change(both, none, unsubscribe) -> {from, none};
out_state_change(both, none, unsubscribed) -> {to, none}.
in_auto_reply(from, none, subscribe) -> subscribed;
in_auto_reply(from, out, subscribe) -> subscribed;
in_auto_reply(both, none, subscribe) -> subscribed;
in_auto_reply(none, in, unsubscribe) -> unsubscribed;
in_auto_reply(none, both, unsubscribe) -> unsubscribed;
in_auto_reply(to, in, unsubscribe) -> unsubscribed;
in_auto_reply(from, none, unsubscribe) -> unsubscribed;
in_auto_reply(from, out, unsubscribe) -> unsubscribed;
in_auto_reply(both, none, unsubscribe) -> unsubscribed;
in_auto_reply(_, _, _) -> none.
remove_user(User, Server) when is_binary(User), is_binary(Server) ->
try
LUser = exmpp_stringprep:nodeprep(User),
LServer = binary_to_list(exmpp_stringprep:nameprep(Server)),
Username = ejabberd_odbc:escape(LUser),
send_unsubscription_to_rosteritems(LUser, LServer),
odbc_queries:del_user_roster_t(LServer, Username),
ok
catch
_ ->
ok
end.
%% For each contact with Subscription:
%% Both or From, send a "unsubscribed" presence stanza;
%% Both or To, send a "unsubscribe" presence stanza.
send_unsubscription_to_rosteritems(LUser, LServer) ->
RosterItems = get_user_roster([], {LUser, LServer}),
From = jlib:make_jid({LUser, LServer, ""}),
lists:foreach(fun(RosterItem) ->
send_unsubscribing_presence(From, RosterItem)
end,
RosterItems).
%% @spec (From::jid(), Item::roster()) -> ok
send_unsubscribing_presence(From, Item) ->
IsTo = case Item#roster.subscription of
both -> true;
to -> true;
_ -> false
end,
IsFrom = case Item#roster.subscription of
both -> true;
from -> true;
_ -> false
end,
{INode, IDom, IRes} = Item#roster.jid,
SendToJID = exmpp_jid:make(INode, IDom, IRes),
if IsTo ->
ejabberd_router:route(
exmpp_jid:bare(From),
SendToJID,
exmpp_presence:unsubscribe());
true -> ok
end,
if IsFrom ->
ejabberd_router:route(
exmpp_jid:bare(From),
SendToJID,
exmpp_presence:unsubscribed());
true -> ok
end,
ok.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
set_items(User, Server, #xmlel{children = Els}) when is_binary(User), is_binary(Server) ->
LUser = exmpp_stringprep:nodeprep(User),
LServer = exmpp_stringprep:nameprep(Server),
catch odbc_queries:sql_transaction(
LServer,
lists:flatmap(fun(El) ->
process_item_set_t(LUser, LServer, El)
end, Els)).
process_item_set_t(LUser, LServer, #xmlel{} = El) ->
try
JID1 = exmpp_jid:parse(exmpp_xml:get_attribute_as_binary(El, 'jid', <<>>)),
{U0, S0, R0} = LJID = jlib:short_prepd_jid(JID1),
Username = ejabberd_odbc:escape(LUser),
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(U0, S0, R0)),
Item = #roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer},
jid = LJID},
Item1 = process_item_attrs_ws(Item, El#xmlel.attrs),
Item2 = process_item_els(Item1, El#xmlel.children),
case Item2#roster.subscription of
remove ->
odbc_queries:del_roster_sql(Username, SJID);
_ ->
ItemVals = record_to_string(Item1),
ItemGroups = groups_to_string(Item2),
odbc_queries:update_roster_sql(Username, SJID, ItemVals, ItemGroups)
end
catch
_ ->
[]
end;
process_item_set_t(_LUser, _LServer, _) ->
[].
process_item_attrs_ws(Item, [#xmlattr{name = Attr, value = Val} | Attrs]) ->
case Attr of
'name' ->
process_item_attrs_ws(Item#roster{name = Val}, Attrs);
'subscription' ->
case Val of
<<"remove">> ->
process_item_attrs_ws(Item#roster{subscription = remove},
Attrs);
<<"none">> ->
process_item_attrs_ws(Item#roster{subscription = none},
Attrs);
<<"both">> ->
process_item_attrs_ws(Item#roster{subscription = both},
Attrs);
<<"from">> ->
process_item_attrs_ws(Item#roster{subscription = from},
Attrs);
<<"to">> ->
process_item_attrs_ws(Item#roster{subscription = to},
Attrs);
_ ->
process_item_attrs_ws(Item, Attrs)
end;
'ask' ->
process_item_attrs_ws(Item, Attrs);
_ ->
process_item_attrs_ws(Item, Attrs)
end;
process_item_attrs_ws(Item, []) ->
Item.
get_in_pending_subscriptions(Ls, User, Server)
when is_binary(User), is_binary(Server) ->
JID = exmpp_jid:make(User, Server),
LUser = exmpp_jid:prep_node(JID),
LServer = exmpp_jid:prep_domain_as_list(JID),
Username = ejabberd_odbc:escape(LUser),
case catch odbc_queries:get_roster(LServer, Username) of
{selected, ["username", "jid", "nick", "subscription", "ask",
"askmessage", "server", "subscribe", "type"],
Items} when is_list(Items) ->
Ls ++ lists:map(
fun(R) ->
Message = R#roster.askmessage,
{U0, S0, R0} = R#roster.jid,
Pres1 = exmpp_presence:subscribe(),
Pres2 = exmpp_stanza:set_jids(Pres1,
exmpp_jid:to_binary(U0, S0, R0),
exmpp_jid:to_binary(JID)),
exmpp_presence:set_status(Pres2, Message)
end,
lists:flatmap(
fun(I) ->
case raw_to_record(exmpp_jid:prep_domain(JID), I) of
%% Bad JID in database:
error ->
[];
R ->
case R#roster.ask of
in -> [R];
both -> [R];
_ -> []
end
end
end,
Items));
_ ->
Ls
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% JID is jid() record, because it's used latter on for both short_prepd_jid
%% and short_prepd_bare_jid
get_jid_info(_, User, Server, JID) when is_binary(User), is_binary(Server) ->
try
LServer = binary_to_list(Server),
LJID = {N, D, R} = jlib:short_prepd_jid(JID),
Username = ejabberd_odbc:escape(User),
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(N, D, R)),
case catch odbc_queries:get_subscription(LServer, Username, SJID) of
{selected, ["subscription"], [{SSubscription}]} ->
Subscription = case SSubscription of
"B" -> both;
"T" -> to;
"F" -> from;
_ -> none
end,
Groups = case catch odbc_queries:get_rostergroup_by_jid(LServer, Username, SJID) of
{selected, ["grp"], JGrps} when is_list(JGrps) ->
[list_to_binary(JGrp) || {JGrp} <- JGrps];
_ ->
[]
end,
{Subscription, Groups};
_ ->
LRJID = jlib:short_prepd_bare_jid(JID),
if
LRJID == LJID ->
{none, []};
true ->
{LR_N, LR_D, LR_R} = LRJID,
SRJID = ejabberd_odbc:escape(exmpp_jid:to_binary(LR_N, LR_D, LR_R)),
case catch odbc_queries:get_subscription(LServer, Username, SRJID) of
{selected, ["subscription"], [{SSubscription}]} ->
Subscription = case SSubscription of
"B" -> both;
"T" -> to;
"F" -> from;
_ -> none
end,
Groups = case catch odbc_queries:get_rostergroup_by_jid(LServer, Username, SRJID) of
{selected, ["grp"], JGrps} when is_list(JGrps) ->
[list_to_binary(JGrp) || {JGrp} <- JGrps];
_ ->
[]
end,
{Subscription, Groups};
_ ->
{none, []}
end
end
end
catch
_ ->
{none, []}
end.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
raw_to_record(LServer, {User, SJID, Nick, SSubscription, SAsk, SAskMessage,
_SServer, _SSubscribe, _SType}) when is_binary(LServer) ->
try
JID = exmpp_jid:parse(SJID),
LJID = jlib:short_prepd_jid(JID),
Subscription = case SSubscription of
"B" -> both;
"T" -> to;
"F" -> from;
_ -> none
end,
Ask = case SAsk of
"S" -> subscribe;
"U" -> unsubscribe;
"B" -> both;
"O" -> out;
"I" -> in;
_ -> none
end,
UserB = list_to_binary(User),
#roster{usj = {UserB, LServer, LJID},
us = {UserB, LServer},
jid = LJID,
name = list_to_binary(Nick),
subscription = Subscription,
ask = Ask,
askmessage = list_to_binary(SAskMessage)}
catch
_ ->
error
end.
record_to_string(#roster{us = {User, _Server},
jid = JID,
name = Name,
subscription = Subscription,
ask = Ask,
askmessage = AskMessage}) ->
Username = ejabberd_odbc:escape(User),
{U, S, R} = JID,
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(U, S, R)),
Nick = ejabberd_odbc:escape(Name),
SSubscription = case Subscription of
both -> "B";
to -> "T";
from -> "F";
none -> "N"
end,
SAsk = case Ask of
subscribe -> "S";
unsubscribe -> "U";
both -> "B";
out -> "O";
in -> "I";
none -> "N"
end,
SAskMessage = ejabberd_odbc:escape(AskMessage),
[Username, SJID, Nick, SSubscription, SAsk, SAskMessage, "N", "", "item"].
groups_to_string(#roster{us = {User, _Server},
jid = JID,
groups = Groups}) ->
Username = ejabberd_odbc:escape(User),
{U, S, R} = JID,
SJID = ejabberd_odbc:escape(exmpp_jid:to_binary(U, S, R)),
%% Empty groups do not need to be converted to string to be inserted in
%% the database
lists:foldl(
fun([], Acc) -> Acc;
(Group, Acc) ->
G = ejabberd_odbc:escape(Group),
[[Username, SJID, G]|Acc] end, [], Groups).
webadmin_page(_, Host,
#request{us = _US,
path = ["user", U, "roster"],
q = Query,
lang = Lang} = _Request) ->
Res = user_roster(U, Host, Query, Lang),
{stop, Res};
webadmin_page(Acc, _, _) -> Acc.
user_roster(User, Server, Query, Lang) ->
try
LUser = exmpp_stringprep:nodeprep(User),
LServer = exmpp_stringprep:nameprep(Server),
US = {LUser, LServer},
Items1 = get_roster(LUser, LServer),
Res = user_roster_parse_query(User, Server, Items1, Query),
Items = get_roster(LUser, LServer),
SItems = lists:sort(Items),
FItems =
case SItems of
[] ->
[?CT("None")];
_ ->
[?XE("table",
[?XE("thead",
[?XE("tr",
[?XCT("td", "Jabber ID"),
?XCT("td", "Nickname"),
?XCT("td", "Subscription"),
?XCT("td", "Pending"),
?XCT("td", "Groups")
])]),
?XE("tbody",
lists:map(
fun(R) ->
Groups =
lists:flatmap(
fun(Group) ->
[?C(Group), ?BR]
end, R#roster.groups),
Pending = ask_to_pending(R#roster.ask),
TDJID = build_contact_jid_td(R#roster.jid),
?XE("tr",
[TDJID,
?XAC("td", [?XMLATTR('class', <<"valign">>)],
binary_to_list(R#roster.name)),
?XAC("td", [?XMLATTR('class', <<"valign">>)],
atom_to_list(R#roster.subscription)),
?XAC("td", [?XMLATTR('class', <<"valign">>)],
atom_to_list(Pending)),
?XAE("td", [?XMLATTR('class', <<"valign">>)], Groups),
if
Pending == in ->
?XAE("td", [?XMLATTR('class', <<"valign">>)],
[?INPUTT("submit",
"validate" ++
ejabberd_web_admin:term_to_id(R#roster.jid),
"Validate")]);
true ->
?X("td")
end,
?XAE("td", [?XMLATTR('class', <<"valign">>)],
[?INPUTT("submit",
"remove" ++
ejabberd_web_admin:term_to_id(R#roster.jid),
"Remove")])])
end, SItems))])]
end,
[?XC("h1", ?T("Roster of ") ++ us_to_list(US))] ++
case Res of
ok -> [?XREST("Submitted")];
error -> [?XREST("Bad format")];
nothing -> []
end ++
[?XAE("form", [?XMLATTR('action', <<"">>), ?XMLATTR('method', <<"post">>)],
FItems ++
[?P,
?INPUT("text", "newjid", ""), ?C(" "),
?INPUTT("submit", "addjid", "Add Jabber ID")
])]
catch
_ ->
[?XC("h1", ?T("Roster of ") ++ us_to_list({User, Server}))] ++
[?CT("Bad format"), ?P] ++
[?XAE("form", [?XMLATTR('action', <<"">>), ?XMLATTR('method', <<"post">>)],
[?P,
?INPUT("text", "newjid", ""), ?C(" "),
?INPUTT("submit", "addjid", "Add Jabber ID")
])]
end.
build_contact_jid_td({U, S, R}) ->
%% Convert {U, S, R} into {jid, U, S, R, U, S, R}:
ContactJID = exmpp_jid:make(U, S, R),
JIDURI = case {exmpp_jid:prep_node(ContactJID), exmpp_jid:prep_domain(ContactJID)} of
{undefined, _} -> "";
{CUser, CServer} ->
CUser_S = binary_to_list(CUser),
CServer_S = binary_to_list(CServer),
case lists:member(CServer_S, ?MYHOSTS) of
false -> "";
true -> "/admin/server/" ++ CServer_S ++ "/user/" ++ CUser_S ++ "/"
end
end,
case JIDURI of
[] ->
?XAC('td', [?XMLATTR('class', <<"valign">>)], exmpp_jid:to_list(ContactJID));
URI when is_list(URI) ->
?XAE('td', [?XMLATTR('class', <<"valign">>)], [?AC(JIDURI, exmpp_jid:to_list(ContactJID))])
end.
user_roster_parse_query(User, Server, Items, Query) ->
case lists:keysearch("addjid", 1, Query) of
{value, _} ->
case lists:keysearch("newjid", 1, Query) of
{value, {_, undefined}} ->
error;
{value, {_, SJID}} ->
try
JID = exmpp_jid:parse(SJID),
user_roster_subscribe_jid(User, Server, JID),
ok
catch
_ ->
error
end;
false ->
error
end;
false ->
case catch user_roster_item_parse_query(
User, Server, Items, Query) of
submitted ->
ok;
{'EXIT', _Reason} ->
error;
_ ->
nothing
end
end.
user_roster_subscribe_jid(User, Server, JID) ->
out_subscription(User, Server, JID, subscribe),
UJID = exmpp_jid:make(User, Server),
ejabberd_router:route(
UJID, JID, exmpp_presence:subscribe()).
user_roster_item_parse_query(User, Server, Items, Query) ->
lists:foreach(
fun(R) ->
JID = R#roster.jid,
case lists:keysearch(
"validate" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
{value, _} ->
{U, S, R} = JID,
JID1 = exmpp_jid:make(U, S, R),
out_subscription(
User, Server, JID1, subscribed),
UJID = exmpp_jid:make(User, Server),
ejabberd_router:route(
UJID, JID1, exmpp_presence:subscribed()),
throw(submitted);
false ->
case lists:keysearch(
"remove" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
{value, _} ->
UJID = exmpp_jid:make(User, Server),
Attrs1 = exmpp_xml:set_attribute_in_list([],
'jid', exmpp_jid:to_list(JID)),
Attrs2 = exmpp_xml:set_attribute_in_list(Attrs1,
'subscription', "remove"),
Item = #xmlel{ns = ?NS_ROSTER, name = 'item',
attrs = Attrs2},
Request = #xmlel{
ns = ?NS_ROSTER,
name = 'query',
children = [Item]},
process_iq(
UJID, UJID,
exmpp_iq:set(?NS_JABBER_CLIENT, Request)),
throw(submitted);
false ->
ok
end
end
end, Items),
nothing.
us_to_list({User, Server}) ->
exmpp_jid:bare_to_list(User, Server).
webadmin_user(Acc, _User, _Server, Lang) ->
Acc ++ [?XE("h3", [?ACT("roster/", "Roster")])].
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