2011-05-27 11:43:52 +02:00
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%%%----------------------------------------------------------------------
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%%% File : mod_blocking.erl
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%%% Author : Stephan Maka
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%%% Purpose : XEP-0191: Simple Communications Blocking
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%%% Created : 24 Aug 2008 by Stephan Maka <stephan@spaceboyz.net>
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%%%
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%%%
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2012-02-23 16:52:34 +01:00
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%%% ejabberd, Copyright (C) 2002-2012 ProcessOne
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2011-05-27 11:43:52 +02:00
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License
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%%% along with this program; if not, write to the Free Software
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%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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%%% 02111-1307 USA
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%%%
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%%%----------------------------------------------------------------------
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-module(mod_blocking).
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-behaviour(gen_mod).
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-export([start/2, stop/1,
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process_iq/3,
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process_iq_set/4,
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process_iq_get/5]).
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-include("ejabberd.hrl").
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-include("jlib.hrl").
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-include("mod_privacy.hrl").
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start(Host, Opts) ->
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IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
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ejabberd_hooks:add(privacy_iq_get, Host,
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?MODULE, process_iq_get, 40),
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ejabberd_hooks:add(privacy_iq_set, Host,
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?MODULE, process_iq_set, 40),
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mod_disco:register_feature(Host, ?NS_BLOCKING),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_BLOCKING,
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?MODULE, process_iq, IQDisc).
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stop(Host) ->
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ejabberd_hooks:delete(privacy_iq_get, Host,
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?MODULE, process_iq_get, 40),
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ejabberd_hooks:delete(privacy_iq_set, Host,
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?MODULE, process_iq_set, 40),
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mod_disco:unregister_feature(Host, ?NS_BLOCKING),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_BLOCKING).
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process_iq(_From, _To, IQ) ->
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SubEl = IQ#iq.sub_el,
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IQ#iq{type = error, sub_el = [SubEl, ?ERR_NOT_ALLOWED]}.
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process_iq_get(_, From, _To,
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#iq{xmlns = ?NS_BLOCKING,
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sub_el = {xmlelement, "blocklist", _, _}},
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_) ->
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#jid{luser = LUser, lserver = LServer} = From,
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2011-12-21 15:20:59 +01:00
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{stop, process_blocklist_get(LUser, LServer)};
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2011-05-27 11:43:52 +02:00
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process_iq_get(Acc, _, _, _, _) ->
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Acc.
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process_iq_set(_, From, _To, #iq{xmlns = ?NS_BLOCKING,
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sub_el = {xmlelement, SubElName, _, SubEls}}) ->
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#jid{luser = LUser, lserver = LServer} = From,
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2011-12-21 15:20:59 +01:00
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Res =
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case {SubElName, xml:remove_cdata(SubEls)} of
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{"block", []} ->
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{error, ?ERR_BAD_REQUEST};
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{"block", Els} ->
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JIDs = parse_blocklist_items(Els, []),
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process_blocklist_block(LUser, LServer, JIDs);
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{"unblock", []} ->
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process_blocklist_unblock_all(LUser, LServer);
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{"unblock", Els} ->
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JIDs = parse_blocklist_items(Els, []),
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process_blocklist_unblock(LUser, LServer, JIDs);
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_ ->
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{error, ?ERR_BAD_REQUEST}
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end,
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{stop, Res};
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2011-05-27 11:43:52 +02:00
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process_iq_set(Acc, _, _, _) ->
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Acc.
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list_to_blocklist_jids([], JIDs) ->
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JIDs;
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list_to_blocklist_jids([#listitem{type = jid,
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action = deny,
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value = JID} = Item | Items], JIDs) ->
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case Item of
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#listitem{match_all = true} ->
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Match = true;
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#listitem{match_iq = true,
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match_message = true,
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match_presence_in = true,
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match_presence_out = true} ->
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Match = true;
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_ ->
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Match = false
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end,
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if
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Match ->
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list_to_blocklist_jids(Items, [JID | JIDs]);
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true ->
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list_to_blocklist_jids(Items, JIDs)
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end;
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% Skip Privacy List items than cannot be mapped to Blocking items
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list_to_blocklist_jids([_ | Items], JIDs) ->
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list_to_blocklist_jids(Items, JIDs).
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parse_blocklist_items([], JIDs) ->
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JIDs;
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parse_blocklist_items([{xmlelement, "item", Attrs, _} | Els], JIDs) ->
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case xml:get_attr("jid", Attrs) of
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{value, JID1} ->
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JID = jlib:jid_tolower(jlib:string_to_jid(JID1)),
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parse_blocklist_items(Els, [JID | JIDs]);
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false ->
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% Tolerate missing jid attribute
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parse_blocklist_items(Els, JIDs)
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end;
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parse_blocklist_items([_ | Els], JIDs) ->
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% Tolerate unknown elements
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parse_blocklist_items(Els, JIDs).
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process_blocklist_block(LUser, LServer, JIDs) ->
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2012-04-27 11:52:05 +02:00
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Filter = fun(List) ->
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AlreadyBlocked = list_to_blocklist_jids(List, []),
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lists:foldr(
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fun(JID, List1) ->
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case lists:member(JID, AlreadyBlocked) of
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true ->
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List1;
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false ->
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[#listitem{type = jid,
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value = JID,
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action = deny,
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order = 0,
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match_all = true}
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end
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end, List, JIDs)
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end,
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case process_blocklist_block(LUser, LServer, Filter,
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gen_mod:db_type(LServer, mod_privacy)) of
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{atomic, {ok, Default, List}} ->
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UserList = make_userlist(Default, List),
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broadcast_list_update(LUser, LServer, Default, UserList),
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broadcast_blocklist_event(LUser, LServer, {block, JIDs}),
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{result, [], UserList};
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end.
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process_blocklist_block(LUser, LServer, Filter, mnesia) ->
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2011-05-27 11:43:52 +02:00
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F =
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fun() ->
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case mnesia:wread({privacy, {LUser, LServer}}) of
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[] ->
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% No lists yet
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P = #privacy{us = {LUser, LServer}},
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% TODO: i18n here:
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NewDefault = "Blocked contacts",
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NewLists1 = [],
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List = [];
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[#privacy{default = Default,
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lists = Lists} = P] ->
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case lists:keysearch(Default, 1, Lists) of
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{value, {_, List}} ->
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% Default list exists
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NewDefault = Default,
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NewLists1 = lists:keydelete(Default, 1, Lists);
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false ->
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% No default list yet, create one
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% TODO: i18n here:
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NewDefault = "Blocked contacts",
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NewLists1 = Lists,
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List = []
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end
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end,
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2012-04-27 11:52:05 +02:00
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NewList = Filter(List),
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2011-05-27 11:43:52 +02:00
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NewLists = [{NewDefault, NewList} | NewLists1],
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mnesia:write(P#privacy{default = NewDefault,
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lists = NewLists}),
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{ok, NewDefault, NewList}
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end,
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2012-04-27 11:52:05 +02:00
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mnesia:transaction(F);
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process_blocklist_block(LUser, LServer, Filter, odbc) ->
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F = fun() ->
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Default =
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case mod_privacy:sql_get_default_privacy_list_t(LUser) of
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{selected, ["name"], []} ->
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Name = "Blocked contacts",
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mod_privacy:sql_add_privacy_list(LUser, Name),
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mod_privacy:sql_set_default_privacy_list(
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LUser, Name),
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Name;
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{selected, ["name"], [{Name}]} ->
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Name
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end,
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{selected, ["id"], [{ID}]} =
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mod_privacy:sql_get_privacy_list_id_t(LUser, Default),
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case mod_privacy:sql_get_privacy_list_data_by_id_t(ID) of
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{selected,
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["t", "value", "action", "ord",
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"match_all", "match_iq", "match_message",
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"match_presence_in",
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"match_presence_out"],
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RItems = [_|_]} ->
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List = lists:map(
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fun mod_privacy:raw_to_item/1,
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RItems);
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_ ->
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List = []
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end,
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NewList = Filter(List),
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NewRItems = lists:map(
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fun mod_privacy:item_to_raw/1,
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NewList),
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mod_privacy:sql_set_privacy_list(
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ID, NewRItems),
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{ok, Default, NewList}
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end,
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ejabberd_odbc:sql_transaction(LServer, F).
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process_blocklist_unblock_all(LUser, LServer) ->
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Filter = fun(List) ->
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lists:filter(
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fun(#listitem{action = A}) ->
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A =/= deny
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end, List)
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end,
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case process_blocklist_unblock_all(
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LUser, LServer, Filter, gen_mod:db_type(LServer, mod_privacy)) of
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{atomic, ok} ->
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{result, []};
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2011-05-27 11:43:52 +02:00
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{atomic, {ok, Default, List}} ->
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2011-12-21 15:20:59 +01:00
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UserList = make_userlist(Default, List),
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2011-12-21 17:27:24 +01:00
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broadcast_list_update(LUser, LServer, Default, UserList),
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2012-04-27 11:52:05 +02:00
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broadcast_blocklist_event(LUser, LServer, unblock_all),
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2011-12-21 15:20:59 +01:00
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{result, [], UserList};
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2011-05-27 11:43:52 +02:00
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end.
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2012-04-27 11:52:05 +02:00
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process_blocklist_unblock_all(LUser, LServer, Filter, mnesia) ->
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2011-05-27 11:43:52 +02:00
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F =
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fun() ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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[] ->
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% No lists, nothing to unblock
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ok;
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[#privacy{default = Default,
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lists = Lists} = P] ->
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case lists:keysearch(Default, 1, Lists) of
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{value, {_, List}} ->
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% Default list, remove all deny items
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2012-04-27 11:52:05 +02:00
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NewList = Filter(List),
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2011-05-27 11:43:52 +02:00
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NewLists1 = lists:keydelete(Default, 1, Lists),
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NewLists = [{Default, NewList} | NewLists1],
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mnesia:write(P#privacy{lists = NewLists}),
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{ok, Default, NewList};
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false ->
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% No default list, nothing to unblock
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ok
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end
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end
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end,
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2012-04-27 11:52:05 +02:00
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mnesia:transaction(F);
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process_blocklist_unblock_all(LUser, LServer, Filter, odbc) ->
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F = fun() ->
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case mod_privacy:sql_get_default_privacy_list_t(LUser) of
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{selected, ["name"], []} ->
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ok;
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{selected, ["name"], [{Default}]} ->
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{selected, ["id"], [{ID}]} =
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mod_privacy:sql_get_privacy_list_id_t(
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LUser, Default),
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case mod_privacy:sql_get_privacy_list_data_by_id_t(ID) of
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{selected,
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["t", "value", "action", "ord",
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"match_all", "match_iq", "match_message",
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"match_presence_in",
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"match_presence_out"],
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RItems = [_|_]} ->
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List = lists:map(
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fun mod_privacy:raw_to_item/1,
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RItems),
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NewList = Filter(List),
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NewRItems = lists:map(
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fun mod_privacy:item_to_raw/1,
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NewList),
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mod_privacy:sql_set_privacy_list(
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ID, NewRItems),
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{ok, Default, NewList};
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_ ->
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ok
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end;
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_ ->
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ok
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end
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end,
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ejabberd_odbc:sql_transaction(LServer, F).
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process_blocklist_unblock(LUser, LServer, JIDs) ->
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Filter = fun(List) ->
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lists:filter(
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fun(#listitem{action = deny,
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type = jid,
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value = JID}) ->
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not(lists:member(JID, JIDs));
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(_) ->
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true
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end, List)
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end,
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case process_blocklist_unblock(LUser, LServer, Filter,
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gen_mod:db_type(LServer, mod_privacy)) of
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{atomic, ok} ->
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2011-05-27 11:43:52 +02:00
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{result, []};
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{atomic, {ok, Default, List}} ->
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2011-12-21 15:20:59 +01:00
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UserList = make_userlist(Default, List),
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broadcast_list_update(LUser, LServer, Default, UserList),
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2012-04-27 11:52:05 +02:00
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broadcast_blocklist_event(LUser, LServer, {unblock, JIDs}),
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2011-12-21 15:20:59 +01:00
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{result, [], UserList};
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2011-05-27 11:43:52 +02:00
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
|
|
|
|
end.
|
|
|
|
|
2012-04-27 11:52:05 +02:00
|
|
|
process_blocklist_unblock(LUser, LServer, Filter, mnesia) ->
|
2011-05-27 11:43:52 +02:00
|
|
|
F =
|
|
|
|
fun() ->
|
|
|
|
case mnesia:read({privacy, {LUser, LServer}}) of
|
|
|
|
[] ->
|
|
|
|
% No lists, nothing to unblock
|
|
|
|
ok;
|
|
|
|
[#privacy{default = Default,
|
|
|
|
lists = Lists} = P] ->
|
|
|
|
case lists:keysearch(Default, 1, Lists) of
|
|
|
|
{value, {_, List}} ->
|
|
|
|
% Default list, remove matching deny items
|
2012-04-27 11:52:05 +02:00
|
|
|
NewList = Filter(List),
|
2011-05-27 11:43:52 +02:00
|
|
|
NewLists1 = lists:keydelete(Default, 1, Lists),
|
|
|
|
NewLists = [{Default, NewList} | NewLists1],
|
|
|
|
mnesia:write(P#privacy{lists = NewLists}),
|
|
|
|
|
|
|
|
{ok, Default, NewList};
|
|
|
|
false ->
|
|
|
|
% No default list, nothing to unblock
|
|
|
|
ok
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end,
|
2012-04-27 11:52:05 +02:00
|
|
|
mnesia:transaction(F);
|
|
|
|
process_blocklist_unblock(LUser, LServer, Filter, odbc) ->
|
|
|
|
F = fun() ->
|
|
|
|
case mod_privacy:sql_get_default_privacy_list_t(LUser) of
|
|
|
|
{selected, ["name"], []} ->
|
|
|
|
ok;
|
|
|
|
{selected, ["name"], [{Default}]} ->
|
|
|
|
{selected, ["id"], [{ID}]} =
|
|
|
|
mod_privacy:sql_get_privacy_list_id_t(
|
|
|
|
LUser, Default),
|
|
|
|
case mod_privacy:sql_get_privacy_list_data_by_id_t(ID) of
|
|
|
|
{selected,
|
|
|
|
["t", "value", "action", "ord",
|
|
|
|
"match_all", "match_iq", "match_message",
|
|
|
|
"match_presence_in",
|
|
|
|
"match_presence_out"],
|
|
|
|
RItems = [_|_]} ->
|
|
|
|
List = lists:map(
|
|
|
|
fun mod_privacy:raw_to_item/1,
|
|
|
|
RItems),
|
|
|
|
NewList = Filter(List),
|
|
|
|
NewRItems = lists:map(
|
|
|
|
fun mod_privacy:item_to_raw/1,
|
|
|
|
NewList),
|
|
|
|
mod_privacy:sql_set_privacy_list(
|
|
|
|
ID, NewRItems),
|
|
|
|
{ok, Default, NewList};
|
|
|
|
_ ->
|
|
|
|
ok
|
|
|
|
end;
|
|
|
|
_ ->
|
|
|
|
ok
|
|
|
|
end
|
|
|
|
end,
|
|
|
|
ejabberd_odbc:sql_transaction(LServer, F).
|
2011-05-27 11:43:52 +02:00
|
|
|
|
2011-12-21 15:20:59 +01:00
|
|
|
make_userlist(Name, List) ->
|
2012-04-27 11:52:05 +02:00
|
|
|
NeedDb = mod_privacy:is_list_needdb(List),
|
2011-12-21 15:20:59 +01:00
|
|
|
#userlist{name = Name, list = List, needdb = NeedDb}.
|
|
|
|
|
|
|
|
broadcast_list_update(LUser, LServer, Name, UserList) ->
|
2011-05-27 11:43:52 +02:00
|
|
|
ejabberd_router:route(
|
|
|
|
jlib:make_jid(LUser, LServer, ""),
|
|
|
|
jlib:make_jid(LUser, LServer, ""),
|
|
|
|
{xmlelement, "broadcast", [],
|
2011-12-21 15:20:59 +01:00
|
|
|
[{privacy_list, UserList, Name}]}).
|
2011-05-27 11:43:52 +02:00
|
|
|
|
|
|
|
broadcast_blocklist_event(LUser, LServer, Event) ->
|
|
|
|
JID = jlib:make_jid(LUser, LServer, ""),
|
|
|
|
ejabberd_router:route(
|
|
|
|
JID, JID,
|
|
|
|
{xmlelement, "broadcast", [],
|
|
|
|
[{blocking, Event}]}).
|
|
|
|
|
|
|
|
process_blocklist_get(LUser, LServer) ->
|
2012-04-27 11:52:05 +02:00
|
|
|
case process_blocklist_get(
|
|
|
|
LUser, LServer, gen_mod:db_type(LServer, mod_privacy)) of
|
|
|
|
error ->
|
|
|
|
{error, ?ERR_INTERNAL_SERVER_ERROR};
|
|
|
|
List ->
|
|
|
|
JIDs = list_to_blocklist_jids(List, []),
|
|
|
|
Items = lists:map(
|
|
|
|
fun(JID) ->
|
|
|
|
?DEBUG("JID: ~p",[JID]),
|
|
|
|
{xmlelement, "item",
|
|
|
|
[{"jid", jlib:jid_to_string(JID)}], []}
|
|
|
|
end, JIDs),
|
|
|
|
{result,
|
|
|
|
[{xmlelement, "blocklist", [{"xmlns", ?NS_BLOCKING}],
|
|
|
|
Items}]}
|
|
|
|
end.
|
|
|
|
|
|
|
|
process_blocklist_get(LUser, LServer, mnesia) ->
|
2011-05-27 11:43:52 +02:00
|
|
|
case catch mnesia:dirty_read(privacy, {LUser, LServer}) of
|
|
|
|
{'EXIT', _Reason} ->
|
2012-04-27 11:52:05 +02:00
|
|
|
error;
|
2011-05-27 11:43:52 +02:00
|
|
|
[] ->
|
2012-04-27 11:52:05 +02:00
|
|
|
[];
|
2011-05-27 11:43:52 +02:00
|
|
|
[#privacy{default = Default, lists = Lists}] ->
|
|
|
|
case lists:keysearch(Default, 1, Lists) of
|
|
|
|
{value, {_, List}} ->
|
2012-04-27 11:52:05 +02:00
|
|
|
List;
|
2011-05-27 11:43:52 +02:00
|
|
|
_ ->
|
2012-04-27 11:52:05 +02:00
|
|
|
[]
|
2011-05-27 11:43:52 +02:00
|
|
|
end
|
2012-04-27 11:52:05 +02:00
|
|
|
end;
|
|
|
|
process_blocklist_get(LUser, LServer, odbc) ->
|
|
|
|
case catch mod_privacy:sql_get_default_privacy_list(LUser, LServer) of
|
|
|
|
{selected, ["name"], []} ->
|
|
|
|
[];
|
|
|
|
{selected, ["name"], [{Default}]} ->
|
|
|
|
case catch mod_privacy:sql_get_privacy_list_data(
|
|
|
|
LUser, LServer, Default) of
|
|
|
|
{selected, ["t", "value", "action", "ord", "match_all",
|
|
|
|
"match_iq", "match_message",
|
|
|
|
"match_presence_in", "match_presence_out"],
|
|
|
|
RItems} ->
|
|
|
|
lists:map(fun mod_privacy:raw_to_item/1, RItems);
|
|
|
|
{'EXIT', _} ->
|
|
|
|
error
|
|
|
|
end;
|
|
|
|
{'EXIT', _} ->
|
|
|
|
error
|
2011-05-27 11:43:52 +02:00
|
|
|
end.
|