mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-06 16:42:56 +01:00
7583eef401
SVN Revision: 958
700 lines
17 KiB
Erlang
700 lines
17 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_privacy.erl
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%%% Author : Alexey Shchepin <alexey@sevcom.net>
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%%% Purpose : jabber:iq:privacy support
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%%% Created : 21 Jul 2003 by Alexey Shchepin <alexey@sevcom.net>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(mod_privacy).
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-author('alexey@sevcom.net').
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-vsn('$Revision$ ').
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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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get_user_list/3,
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check_packet/6,
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updated_list/3]).
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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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mnesia:create_table(privacy, [{disc_copies, [node()]},
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{attributes, record_info(fields, privacy)}]),
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update_table(),
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ejabberd_hooks:add(privacy_iq_get, Host,
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?MODULE, process_iq_get, 50),
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ejabberd_hooks:add(privacy_iq_set, Host,
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?MODULE, process_iq_set, 50),
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ejabberd_hooks:add(privacy_get_user_list, Host,
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?MODULE, get_user_list, 50),
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ejabberd_hooks:add(privacy_check_packet, Host,
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?MODULE, check_packet, 50),
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ejabberd_hooks:add(privacy_updated_list, Host,
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?MODULE, updated_list, 50),
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gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_PRIVACY,
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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, 50),
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ejabberd_hooks:delete(privacy_iq_set, Host,
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?MODULE, process_iq_set, 50),
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ejabberd_hooks:delete(privacy_get_user_list, Host,
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?MODULE, get_user_list, 50),
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ejabberd_hooks:delete(privacy_check_packet, Host,
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?MODULE, check_packet, 50),
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ejabberd_hooks:delete(privacy_updated_list, Host,
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?MODULE, updated_list, 50),
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gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_PRIVACY).
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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, #iq{sub_el = SubEl},
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#userlist{name = Active}) ->
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#jid{luser = LUser, lserver = LServer} = From,
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{xmlelement, _, _, Els} = SubEl,
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case xml:remove_cdata(Els) of
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[] ->
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process_lists_get(LUser, LServer, Active);
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[{xmlelement, Name, Attrs, _SubEls}] ->
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case Name of
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"list" ->
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ListName = xml:get_attr("name", Attrs),
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process_list_get(LUser, LServer, ListName);
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_ ->
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{error, ?ERR_BAD_REQUEST}
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end;
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_ ->
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{error, ?ERR_BAD_REQUEST}
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end.
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process_lists_get(LUser, LServer, Active) ->
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case catch mnesia:dirty_read(privacy, {LUser, LServer}) of
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{'EXIT', _Reason} ->
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{error, ?ERR_INTERNAL_SERVER_ERROR};
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[] ->
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{result, [{xmlelement, "query", [{"xmlns", ?NS_PRIVACY}], []}]};
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[#privacy{default = Default, lists = Lists}] ->
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case Lists of
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[] ->
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{result, [{xmlelement, "query",
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[{"xmlns", ?NS_PRIVACY}], []}]};
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_ ->
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LItems = lists:map(
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fun({N, _}) ->
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{xmlelement, "list",
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[{"name", N}], []}
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end, Lists),
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DItems =
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case Default of
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none ->
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LItems;
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_ ->
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[{xmlelement, "default",
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[{"name", Default}], []} | LItems]
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end,
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ADItems =
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case Active of
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none ->
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DItems;
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_ ->
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[{xmlelement, "active",
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[{"name", Active}], []} | DItems]
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end,
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{result,
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[{xmlelement, "query", [{"xmlns", ?NS_PRIVACY}],
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ADItems}]}
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end
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end.
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process_list_get(LUser, LServer, {value, Name}) ->
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case catch mnesia:dirty_read(privacy, {LUser, LServer}) of
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{'EXIT', _Reason} ->
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{error, ?ERR_INTERNAL_SERVER_ERROR};
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[] ->
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{error, ?ERR_ITEM_NOT_FOUND};
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%{result, [{xmlelement, "query", [{"xmlns", ?NS_PRIVACY}], []}]};
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[#privacy{lists = Lists}] ->
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case lists:keysearch(Name, 1, Lists) of
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{value, {_, List}} ->
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LItems = lists:map(fun item_to_xml/1, List),
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{result,
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[{xmlelement, "query", [{"xmlns", ?NS_PRIVACY}],
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[{xmlelement, "list",
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[{"name", Name}], LItems}]}]};
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_ ->
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{error, ?ERR_ITEM_NOT_FOUND}
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end
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end;
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process_list_get(_LUser, _LServer, false) ->
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{error, ?ERR_BAD_REQUEST}.
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item_to_xml(Item) ->
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Attrs1 = [{"action", action_to_list(Item#listitem.action)},
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{"order", order_to_list(Item#listitem.order)}],
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Attrs2 = case Item#listitem.type of
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none ->
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Attrs1;
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Type ->
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[{"type", type_to_list(Item#listitem.type)},
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{"value", value_to_list(Type, Item#listitem.value)} |
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Attrs1]
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end,
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SubEls = case Item#listitem.match_all of
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true ->
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[];
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false ->
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SE1 = case Item#listitem.match_iq of
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true ->
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[{xmlelement, "iq", [], []}];
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false ->
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[]
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end,
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SE2 = case Item#listitem.match_message of
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true ->
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[{xmlelement, "message", [], []} | SE1];
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false ->
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SE1
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end,
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SE3 = case Item#listitem.match_presence_in of
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true ->
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[{xmlelement, "presence-in", [], []} | SE2];
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false ->
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SE2
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end,
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SE4 = case Item#listitem.match_presence_out of
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true ->
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[{xmlelement, "presence-out", [], []} | SE3];
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false ->
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SE3
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end,
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SE4
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end,
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{xmlelement, "item", Attrs2, SubEls}.
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action_to_list(Action) ->
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case Action of
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allow -> "allow";
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deny -> "deny"
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end.
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order_to_list(Order) ->
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integer_to_list(Order).
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type_to_list(Type) ->
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case Type of
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jid -> "jid";
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group -> "group";
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subscription -> "subscription"
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end.
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value_to_list(Type, Val) ->
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case Type of
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jid -> jlib:jid_to_string(Val);
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group -> Val;
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subscription ->
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case Val of
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both -> "both";
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to -> "to";
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from -> "from";
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none -> "none"
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end
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end.
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list_to_action(S) ->
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case S of
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"allow" -> allow;
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"deny" -> deny
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end.
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process_iq_set(_, From, _To, #iq{sub_el = SubEl}) ->
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#jid{luser = LUser, lserver = LServer} = From,
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{xmlelement, _, _, Els} = SubEl,
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case xml:remove_cdata(Els) of
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[{xmlelement, Name, Attrs, SubEls}] ->
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ListName = xml:get_attr("name", Attrs),
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case Name of
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"list" ->
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process_list_set(LUser, LServer, ListName,
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xml:remove_cdata(SubEls));
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"active" ->
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process_active_set(LUser, LServer, ListName);
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"default" ->
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process_default_set(LUser, LServer, ListName);
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_ ->
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{error, ?ERR_BAD_REQUEST}
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end;
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_ ->
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{error, ?ERR_BAD_REQUEST}
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end.
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process_default_set(LUser, LServer, {value, Name}) ->
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F = fun() ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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[] ->
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{error, ?ERR_ITEM_NOT_FOUND};
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[#privacy{lists = Lists} = P] ->
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case lists:keymember(Name, 1, Lists) of
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true ->
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mnesia:write(P#privacy{default = Name,
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lists = Lists}),
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{result, []};
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false ->
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{error, ?ERR_ITEM_NOT_FOUND}
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end
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end
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end,
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case mnesia:transaction(F) of
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{atomic, {error, _} = Error} ->
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Error;
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{atomic, {result, _} = Res} ->
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Res;
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end;
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process_default_set(LUser, LServer, false) ->
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F = fun() ->
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case mnesia:read({privacy, {LUser, LServer}}) of
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[] ->
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{result, []};
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[R] ->
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mnesia:write(R#privacy{default = none}),
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{result, []}
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end
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end,
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case mnesia:transaction(F) of
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{atomic, {error, _} = Error} ->
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Error;
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{atomic, {result, _} = Res} ->
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Res;
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end.
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process_active_set(LUser, LServer, {value, Name}) ->
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case catch mnesia:dirty_read(privacy, {LUser, LServer}) of
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[] ->
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{error, ?ERR_ITEM_NOT_FOUND};
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[#privacy{lists = Lists}] ->
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case lists:keysearch(Name, 1, Lists) of
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{value, {_, List}} ->
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{result, [], #userlist{name = Name, list = List}};
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false ->
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{error, ?ERR_ITEM_NOT_FOUND}
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end
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end;
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process_active_set(_LUser, _LServer, false) ->
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{result, [], #userlist{}}.
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process_list_set(LUser, LServer, {value, Name}, Els) ->
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case parse_items(Els) of
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false ->
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{error, ?ERR_BAD_REQUEST};
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remove ->
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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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{result, []};
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[#privacy{default = Default, lists = Lists} = P] ->
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% TODO: check active
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if
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Name == Default ->
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{error, ?ERR_CONFLICT};
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true ->
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NewLists =
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lists:keydelete(Name, 1, Lists),
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mnesia:write(
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P#privacy{lists = NewLists}),
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{result, []}
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end
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end
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end,
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case mnesia:transaction(F) of
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{atomic, {error, _} = Error} ->
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Error;
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{atomic, {result, _} = Res} ->
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ejabberd_router:route(
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jlib:make_jid(LUser, LServer, ""),
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jlib:make_jid(LUser, LServer, ""),
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{xmlelement, "broadcast", [],
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[{privacy_list,
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#userlist{name = Name, list = []},
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Name}]}),
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Res;
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end;
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List ->
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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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NewLists = [{Name, List}],
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mnesia:write(#privacy{us = {LUser, LServer},
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lists = NewLists}),
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{result, []};
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[#privacy{lists = Lists} = P] ->
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NewLists1 = lists:keydelete(Name, 1, Lists),
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NewLists = [{Name, List} | NewLists1],
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mnesia:write(P#privacy{lists = NewLists}),
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{result, []}
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end
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end,
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case mnesia:transaction(F) of
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{atomic, {error, _} = Error} ->
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Error;
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{atomic, {result, _} = Res} ->
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ejabberd_router:route(
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jlib:make_jid(LUser, LServer, ""),
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jlib:make_jid(LUser, LServer, ""),
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{xmlelement, "broadcast", [],
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[{privacy_list,
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#userlist{name = Name, list = List},
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Name}]}),
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Res;
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_ ->
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{error, ?ERR_INTERNAL_SERVER_ERROR}
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end
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end;
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process_list_set(_LUser, _LServer, false, _Els) ->
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{error, ?ERR_BAD_REQUEST}.
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parse_items([]) ->
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remove;
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parse_items(Els) ->
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parse_items(Els, []).
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parse_items([], Res) ->
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lists:reverse(Res);
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parse_items([{xmlelement, "item", Attrs, SubEls} | Els], Res) ->
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Type = xml:get_attr("type", Attrs),
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Value = xml:get_attr("value", Attrs),
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SAction = xml:get_attr("action", Attrs),
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SOrder = xml:get_attr("order", Attrs),
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Action = case catch list_to_action(element(2, SAction)) of
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{'EXIT', _} -> false;
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Val -> Val
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end,
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Order = case catch list_to_integer(element(2, SOrder)) of
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{'EXIT', _} ->
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false;
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IntVal ->
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if
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IntVal >= 0 ->
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IntVal;
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true ->
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false
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end
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end,
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if
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(Action /= false) and (Order /= false) ->
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I1 = #listitem{action = Action, order = Order},
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I2 = case {Type, Value} of
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{{value, T}, {value, V}} ->
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case T of
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"jid" ->
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case jlib:string_to_jid(V) of
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error ->
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false;
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JID ->
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I1#listitem{
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type = jid,
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value = jlib:jid_tolower(JID)}
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end;
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"group" ->
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I1#listitem{type = group,
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value = V};
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"subscription" ->
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case V of
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"none" ->
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I1#listitem{type = subscription,
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value = none};
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"both" ->
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I1#listitem{type = subscription,
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value = both};
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"from" ->
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I1#listitem{type = subscription,
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value = from};
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"to" ->
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I1#listitem{type = subscription,
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value = to};
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_ ->
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false
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end
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end;
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{{value, _}, false} ->
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false;
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_ ->
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I1
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end,
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case I2 of
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false ->
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false;
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_ ->
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case parse_matches(I2, xml:remove_cdata(SubEls)) of
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false ->
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false;
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I3 ->
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parse_items(Els, [I3 | Res])
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end
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end;
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true ->
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false
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end;
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parse_items(_, _Res) ->
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false.
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parse_matches(Item, []) ->
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Item#listitem{match_all = true};
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parse_matches(Item, Els) ->
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parse_matches1(Item, Els).
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parse_matches1(Item, []) ->
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Item;
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parse_matches1(Item, [{xmlelement, "message", _, _} | Els]) ->
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parse_matches1(Item#listitem{match_message = true}, Els);
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parse_matches1(Item, [{xmlelement, "iq", _, _} | Els]) ->
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parse_matches1(Item#listitem{match_iq = true}, Els);
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parse_matches1(Item, [{xmlelement, "presence-in", _, _} | Els]) ->
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parse_matches1(Item#listitem{match_presence_in = true}, Els);
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parse_matches1(Item, [{xmlelement, "presence-out", _, _} | Els]) ->
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parse_matches1(Item#listitem{match_presence_out = true}, Els);
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parse_matches1(_Item, [{xmlelement, _, _, _} | _Els]) ->
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false.
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get_user_list(_, User, Server) ->
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LUser = jlib:nodeprep(User),
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LServer = jlib:nameprep(Server),
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case catch mnesia:dirty_read(privacy, {LUser, LServer}) of
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[] ->
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#userlist{};
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[#privacy{default = Default, lists = Lists}] ->
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case Default of
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none ->
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#userlist{};
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_ ->
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case lists:keysearch(Default, 1, Lists) of
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{value, {_, List}} ->
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SortedList = lists:keysort(#listitem.order, List),
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#userlist{name = Default, list = SortedList};
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_ ->
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#userlist{}
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end
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end;
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_ ->
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#userlist{}
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end.
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check_packet(_, User, Server,
|
|
#userlist{list = List},
|
|
{From, To, {xmlelement, PName, _, _}},
|
|
Dir) ->
|
|
case List of
|
|
[] ->
|
|
allow;
|
|
_ ->
|
|
PType = case PName of
|
|
"message" -> message;
|
|
"iq" -> iq;
|
|
"presence" -> presence
|
|
end,
|
|
case {PType, Dir} of
|
|
{message, in} ->
|
|
LJID = jlib:jid_tolower(From),
|
|
{Subscription, Groups} =
|
|
ejabberd_hooks:run_fold(
|
|
roster_get_jid_info, jlib:nameprep(Server),
|
|
{none, []}, [User, Server, LJID]),
|
|
check_packet_aux(List, message,
|
|
LJID, Subscription, Groups);
|
|
{iq, in} ->
|
|
LJID = jlib:jid_tolower(From),
|
|
{Subscription, Groups} =
|
|
ejabberd_hooks:run_fold(
|
|
roster_get_jid_info, jlib:nameprep(Server),
|
|
{none, []}, [User, Server, LJID]),
|
|
check_packet_aux(List, iq,
|
|
LJID, Subscription, Groups);
|
|
{presence, in} ->
|
|
LJID = jlib:jid_tolower(From),
|
|
{Subscription, Groups} =
|
|
ejabberd_hooks:run_fold(
|
|
roster_get_jid_info, jlib:nameprep(Server),
|
|
{none, []}, [User, Server, LJID]),
|
|
check_packet_aux(List, presence_in,
|
|
LJID, Subscription, Groups);
|
|
{presence, out} ->
|
|
LJID = jlib:jid_tolower(To),
|
|
{Subscription, Groups} =
|
|
ejabberd_hooks:run_fold(
|
|
roster_get_jid_info, jlib:nameprep(Server),
|
|
{none, []}, [User, Server, LJID]),
|
|
check_packet_aux(List, presence_out,
|
|
LJID, Subscription, Groups);
|
|
_ ->
|
|
allow
|
|
end
|
|
end.
|
|
|
|
check_packet_aux([], _PType, _JID, _Subscription, _Groups) ->
|
|
allow;
|
|
check_packet_aux([Item | List], PType, JID, Subscription, Groups) ->
|
|
#listitem{type = Type, value = Value, action = Action} = Item,
|
|
case is_ptype_match(Item, PType) of
|
|
true ->
|
|
case Type of
|
|
none ->
|
|
Action;
|
|
_ ->
|
|
case is_type_match(Type, Value,
|
|
JID, Subscription, Groups) of
|
|
true ->
|
|
Action;
|
|
false ->
|
|
check_packet_aux(List, PType,
|
|
JID, Subscription, Groups)
|
|
end
|
|
end;
|
|
false ->
|
|
check_packet_aux(List, PType, JID, Subscription, Groups)
|
|
end.
|
|
|
|
|
|
is_ptype_match(Item, PType) ->
|
|
case Item#listitem.match_all of
|
|
true ->
|
|
true;
|
|
false ->
|
|
case PType of
|
|
message ->
|
|
Item#listitem.match_message;
|
|
iq ->
|
|
Item#listitem.match_iq;
|
|
presence_in ->
|
|
Item#listitem.match_presence_in;
|
|
presence_out ->
|
|
Item#listitem.match_presence_out
|
|
end
|
|
end.
|
|
|
|
|
|
is_type_match(Type, Value, JID, Subscription, Groups) ->
|
|
case Type of
|
|
jid ->
|
|
case Value of
|
|
{"", Server, ""} ->
|
|
case JID of
|
|
{_, Server, _} ->
|
|
true;
|
|
_ ->
|
|
false
|
|
end;
|
|
{User, Server, ""} ->
|
|
case JID of
|
|
{User, Server, _} ->
|
|
true;
|
|
_ ->
|
|
false
|
|
end;
|
|
_ ->
|
|
Value == JID
|
|
end;
|
|
subscription ->
|
|
Value == Subscription;
|
|
group ->
|
|
lists:member(Value, Groups)
|
|
end.
|
|
|
|
|
|
updated_list(_,
|
|
#userlist{name = OldName} = Old,
|
|
#userlist{name = NewName} = New) ->
|
|
if
|
|
OldName == NewName ->
|
|
New;
|
|
true ->
|
|
Old
|
|
end.
|
|
|
|
|
|
|
|
update_table() ->
|
|
Fields = record_info(fields, privacy),
|
|
case mnesia:table_info(privacy, attributes) of
|
|
Fields ->
|
|
ok;
|
|
[user, default, lists] ->
|
|
?INFO_MSG("Converting privacy table from "
|
|
"{user, default, lists} format", []),
|
|
Host = ?MYNAME,
|
|
{atomic, ok} = mnesia:create_table(
|
|
mod_privacy_tmp_table,
|
|
[{disc_only_copies, [node()]},
|
|
{type, bag},
|
|
{local_content, true},
|
|
{record_name, privacy},
|
|
{attributes, record_info(fields, privacy)}]),
|
|
mnesia:transform_table(privacy, ignore, Fields),
|
|
F1 = fun() ->
|
|
mnesia:write_lock_table(mod_privacy_tmp_table),
|
|
mnesia:foldl(
|
|
fun(#privacy{us = U} = R, _) ->
|
|
mnesia:dirty_write(
|
|
mod_privacy_tmp_table,
|
|
R#privacy{us = {U, Host}})
|
|
end, ok, privacy)
|
|
end,
|
|
mnesia:transaction(F1),
|
|
mnesia:clear_table(privacy),
|
|
F2 = fun() ->
|
|
mnesia:write_lock_table(privacy),
|
|
mnesia:foldl(
|
|
fun(R, _) ->
|
|
mnesia:dirty_write(R)
|
|
end, ok, mod_privacy_tmp_table)
|
|
end,
|
|
mnesia:transaction(F2),
|
|
mnesia:delete_table(mod_privacy_tmp_table);
|
|
_ ->
|
|
?INFO_MSG("Recreating privacy table", []),
|
|
mnesia:transform_table(privacy, ignore, Fields)
|
|
end.
|
|
|
|
|