%%%---------------------------------------------------------------------- %%% File : mod_irc.erl %%% Author : Alexey Shchepin %%% Purpose : IRC transport %%% Created : 15 Feb 2003 by Alexey Shchepin %%% %%% %%% ejabberd, Copyright (C) 2002-2016 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., %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. %%% %%%---------------------------------------------------------------------- -module(mod_irc). -author('alexey@process-one.net'). -behaviour(gen_server). -behaviour(gen_mod). %% API -export([start_link/2, start/2, stop/1, export/1, import/1, import/3, closed_connection/3, get_connection_params/3, data_to_binary/2]). -export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2, code_change/3, mod_opt_type/1]). -include("ejabberd.hrl"). -include("logger.hrl"). -include("jlib.hrl"). -include("adhoc.hrl"). -include("mod_irc.hrl"). -define(DEFAULT_IRC_ENCODING, <<"iso8859-15">>). -define(DEFAULT_IRC_PORT, 6667). -define(DEFAULT_REALNAME, <<"WebIRC-User">>). -define(DEFAULT_WEBIRC_PASSWORD, <<"">>). -define(POSSIBLE_ENCODINGS, [<<"koi8-r">>, <<"iso8859-15">>, <<"iso8859-1">>, <<"iso8859-2">>, <<"utf-8">>, <<"utf-8+latin-1">>]). -record(state, {host = <<"">> :: binary(), server_host = <<"">> :: binary(), access = all :: atom()}). -define(PROCNAME, ejabberd_mod_irc). -callback init(binary(), gen_mod:opts()) -> any(). -callback import(binary(), #irc_custom{}) -> ok | pass. -callback get_data(binary(), binary(), {binary(), binary()}) -> error | empty | irc_data(). -callback set_data(binary(), binary(), {binary(), binary()}, irc_data()) -> {atomic, any()}. %%==================================================================== %% API %%==================================================================== %%-------------------------------------------------------------------- %% Function: start_link() -> {ok,Pid} | ignore | {error,Error} %% Description: Starts the server %%-------------------------------------------------------------------- start_link(Host, Opts) -> Proc = gen_mod:get_module_proc(Host, ?PROCNAME), gen_server:start_link({local, Proc}, ?MODULE, [Host, Opts], []). start(Host, Opts) -> start_supervisor(Host), Proc = gen_mod:get_module_proc(Host, ?PROCNAME), ChildSpec = {Proc, {?MODULE, start_link, [Host, Opts]}, temporary, 1000, worker, [?MODULE]}, supervisor:start_child(ejabberd_sup, ChildSpec). stop(Host) -> stop_supervisor(Host), Proc = gen_mod:get_module_proc(Host, ?PROCNAME), gen_server:call(Proc, stop), supervisor:delete_child(ejabberd_sup, Proc). %%==================================================================== %% gen_server callbacks %%==================================================================== %%-------------------------------------------------------------------- %% Function: init(Args) -> {ok, State} | %% {ok, State, Timeout} | %% ignore | %% {stop, Reason} %% Description: Initiates the server %%-------------------------------------------------------------------- init([Host, Opts]) -> ejabberd:start_app(iconv), MyHost = gen_mod:get_opt_host(Host, Opts, <<"irc.@HOST@">>), Mod = gen_mod:db_mod(Host, Opts, ?MODULE), Mod:init(Host, Opts), Access = gen_mod:get_opt(access, Opts, fun(A) when is_atom(A) -> A end, all), catch ets:new(irc_connection, [named_table, public, {keypos, #irc_connection.jid_server_host}]), ejabberd_router:register_route(MyHost, Host), {ok, #state{host = MyHost, server_host = Host, access = Access}}. %%-------------------------------------------------------------------- %% Function: %% handle_call(Request, From, State) -> {reply, Reply, State} | %% {reply, Reply, State, Timeout} | %% {noreply, State} | %% {noreply, State, Timeout} | %% {stop, Reason, Reply, State} | %% {stop, Reason, State} %% Description: Handling call messages %%-------------------------------------------------------------------- handle_call(stop, _From, State) -> {stop, normal, ok, State}. %%-------------------------------------------------------------------- %% Function: handle_cast(Msg, State) -> {noreply, State} | %% {noreply, State, Timeout} | %% {stop, Reason, State} %% Description: Handling cast messages %%-------------------------------------------------------------------- handle_cast(_Msg, State) -> {noreply, State}. %%-------------------------------------------------------------------- %% Function: handle_info(Info, State) -> {noreply, State} | %% {noreply, State, Timeout} | %% {stop, Reason, State} %% Description: Handling all non call/cast messages %%-------------------------------------------------------------------- handle_info({route, From, To, Packet}, #state{host = Host, server_host = ServerHost, access = Access} = State) -> case catch do_route(Host, ServerHost, Access, From, To, Packet) of {'EXIT', Reason} -> ?ERROR_MSG("~p", [Reason]); _ -> ok end, {noreply, State}; handle_info(_Info, State) -> {noreply, State}. %%-------------------------------------------------------------------- %% Function: terminate(Reason, State) -> void() %% Description: This function is called by a gen_server when it is about to %% terminate. It should be the opposite of Module:init/1 and do any necessary %% cleaning up. When it returns, the gen_server terminates with Reason. %% The return value is ignored. %%-------------------------------------------------------------------- terminate(_Reason, State) -> ejabberd_router:unregister_route(State#state.host), ok. %%-------------------------------------------------------------------- %% Func: code_change(OldVsn, State, Extra) -> {ok, NewState} %% Description: Convert process state when code is changed %%-------------------------------------------------------------------- code_change(_OldVsn, State, _Extra) -> {ok, State}. %%-------------------------------------------------------------------- %%% Internal functions %%-------------------------------------------------------------------- start_supervisor(Host) -> Proc = gen_mod:get_module_proc(Host, ejabberd_mod_irc_sup), ChildSpec = {Proc, {ejabberd_tmp_sup, start_link, [Proc, mod_irc_connection]}, permanent, infinity, supervisor, [ejabberd_tmp_sup]}, supervisor:start_child(ejabberd_sup, ChildSpec). stop_supervisor(Host) -> Proc = gen_mod:get_module_proc(Host, ejabberd_mod_irc_sup), supervisor:terminate_child(ejabberd_sup, Proc), supervisor:delete_child(ejabberd_sup, Proc). do_route(Host, ServerHost, Access, From, To, Packet) -> case acl:match_rule(ServerHost, Access, From) of allow -> do_route1(Host, ServerHost, From, To, Packet); _ -> #xmlel{attrs = Attrs} = Packet, Lang = fxml:get_attr_s(<<"xml:lang">>, Attrs), ErrText = <<"Access denied by service policy">>, Err = jlib:make_error_reply(Packet, ?ERRT_FORBIDDEN(Lang, ErrText)), ejabberd_router:route(To, From, Err) end. do_route1(Host, ServerHost, From, To, Packet) -> #jid{user = ChanServ, resource = Resource} = To, #xmlel{} = Packet, case ChanServ of <<"">> -> case Resource of <<"">> -> case jlib:iq_query_info(Packet) of #iq{type = get, xmlns = (?NS_DISCO_INFO) = XMLNS, sub_el = SubEl, lang = Lang} = IQ -> Node = fxml:get_tag_attr_s(<<"node">>, SubEl), Info = ejabberd_hooks:run_fold(disco_info, ServerHost, [], [ServerHost, ?MODULE, <<"">>, <<"">>]), case iq_disco(ServerHost, Node, Lang) of [] -> Res = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = []}]}, ejabberd_router:route(To, From, jlib:iq_to_xml(Res)); DiscoInfo -> Res = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = DiscoInfo ++ Info}]}, ejabberd_router:route(To, From, jlib:iq_to_xml(Res)) end; #iq{type = get, xmlns = (?NS_DISCO_ITEMS) = XMLNS, sub_el = SubEl, lang = Lang} = IQ -> Node = fxml:get_tag_attr_s(<<"node">>, SubEl), case Node of <<>> -> ResIQ = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = []}]}, Res = jlib:iq_to_xml(ResIQ); <<"join">> -> ResIQ = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = []}]}, Res = jlib:iq_to_xml(ResIQ); <<"register">> -> ResIQ = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = []}]}, Res = jlib:iq_to_xml(ResIQ); ?NS_COMMANDS -> ResIQ = IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}, {<<"node">>, Node}], children = command_items(ServerHost, Host, Lang)}]}, Res = jlib:iq_to_xml(ResIQ); _ -> Txt = <<"Node not found">>, Res = jlib:make_error_reply( Packet, ?ERRT_ITEM_NOT_FOUND(Lang, Txt)) end, ejabberd_router:route(To, From, Res); #iq{xmlns = ?NS_REGISTER} = IQ -> process_register(ServerHost, Host, From, To, IQ); #iq{type = get, xmlns = (?NS_VCARD) = XMLNS, lang = Lang} = IQ -> Res = IQ#iq{type = result, sub_el = [#xmlel{name = <<"vCard">>, attrs = [{<<"xmlns">>, XMLNS}], children = iq_get_vcard(Lang)}]}, ejabberd_router:route(To, From, jlib:iq_to_xml(Res)); #iq{type = set, xmlns = ?NS_COMMANDS, lang = Lang, sub_el = SubEl} = IQ -> Request = adhoc:parse_request(IQ), case lists:keysearch(Request#adhoc_request.node, 1, commands(ServerHost)) of {value, {_, _, Function}} -> case catch Function(From, To, Request) of {'EXIT', Reason} -> ?ERROR_MSG("~p~nfor ad-hoc handler of ~p", [Reason, {From, To, IQ}]), Res = IQ#iq{type = error, sub_el = [SubEl, ?ERR_INTERNAL_SERVER_ERROR]}; ignore -> Res = ignore; {error, Error} -> Res = IQ#iq{type = error, sub_el = [SubEl, Error]}; Command -> Res = IQ#iq{type = result, sub_el = [Command]} end, if Res /= ignore -> ejabberd_router:route(To, From, jlib:iq_to_xml(Res)); true -> ok end; _ -> Txt = <<"Node not found">>, Err = jlib:make_error_reply( Packet, ?ERRT_ITEM_NOT_FOUND(Lang, Txt)), ejabberd_router:route(To, From, Err) end; #iq{} = _IQ -> Err = jlib:make_error_reply(Packet, ?ERR_FEATURE_NOT_IMPLEMENTED), ejabberd_router:route(To, From, Err); _ -> ok end; _ -> Err = jlib:make_error_reply(Packet, ?ERR_BAD_REQUEST), ejabberd_router:route(To, From, Err) end; _ -> case str:tokens(ChanServ, <<"%">>) of [<<_, _/binary>> = Channel, <<_, _/binary>> = Server] -> case ets:lookup(irc_connection, {From, Server, Host}) of [] -> ?DEBUG("open new connection~n", []), {Username, Encoding, Port, Password} = get_connection_params(Host, ServerHost, From, Server), ConnectionUsername = case Packet of %% If the user tries to join a %% chatroom, the packet for sure %% contains the desired username. #xmlel{name = <<"presence">>} -> Resource; %% Otherwise, there is no firm %% conclusion from the packet. %% Better to use the configured %% username (which defaults to the %% username part of the JID). _ -> Username end, Ident = extract_ident(Packet), RemoteAddr = extract_ip_address(Packet), RealName = get_realname(ServerHost), WebircPassword = get_webirc_password(ServerHost), {ok, Pid} = mod_irc_connection:start(From, Host, ServerHost, Server, ConnectionUsername, Encoding, Port, Password, Ident, RemoteAddr, RealName, WebircPassword, ?MODULE), ets:insert(irc_connection, #irc_connection{jid_server_host = {From, Server, Host}, pid = Pid}), mod_irc_connection:route_chan(Pid, Channel, Resource, Packet), ok; [R] -> Pid = R#irc_connection.pid, ?DEBUG("send to process ~p~n", [Pid]), mod_irc_connection:route_chan(Pid, Channel, Resource, Packet), ok end; _ -> Lang = fxml:get_tag_attr_s(<<"xml:lang">>, Packet), case str:tokens(ChanServ, <<"!">>) of [<<_, _/binary>> = Nick, <<_, _/binary>> = Server] -> case ets:lookup(irc_connection, {From, Server, Host}) of [] -> Txt = <<"IRC connection not found">>, Err = jlib:make_error_reply( Packet, ?ERRT_SERVICE_UNAVAILABLE(Lang, Txt)), ejabberd_router:route(To, From, Err); [R] -> Pid = R#irc_connection.pid, ?DEBUG("send to process ~p~n", [Pid]), mod_irc_connection:route_nick(Pid, Nick, Packet), ok end; _ -> Txt = <<"Failed to parse chanserv">>, Err = jlib:make_error_reply( Packet, ?ERRT_BAD_REQUEST(Lang, Txt)), ejabberd_router:route(To, From, Err) end end end. closed_connection(Host, From, Server) -> ets:delete(irc_connection, {From, Server, Host}). iq_disco(_ServerHost, <<>>, Lang) -> [#xmlel{name = <<"identity">>, attrs = [{<<"category">>, <<"conference">>}, {<<"type">>, <<"irc">>}, {<<"name">>, translate:translate(Lang, <<"IRC Transport">>)}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_DISCO_INFO}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_MUC}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_REGISTER}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_VCARD}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_COMMANDS}], children = []}]; iq_disco(ServerHost, Node, Lang) -> case lists:keysearch(Node, 1, commands(ServerHost)) of {value, {_, Name, _}} -> [#xmlel{name = <<"identity">>, attrs = [{<<"category">>, <<"automation">>}, {<<"type">>, <<"command-node">>}, {<<"name">>, translate:translate(Lang, Name)}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_COMMANDS}], children = []}, #xmlel{name = <<"feature">>, attrs = [{<<"var">>, ?NS_XDATA}], children = []}]; _ -> [] end. iq_get_vcard(Lang) -> [#xmlel{name = <<"FN">>, attrs = [], children = [{xmlcdata, <<"ejabberd/mod_irc">>}]}, #xmlel{name = <<"URL">>, attrs = [], children = [{xmlcdata, ?EJABBERD_URI}]}, #xmlel{name = <<"DESC">>, attrs = [], children = [{xmlcdata, <<(translate:translate(Lang, <<"ejabberd IRC module">>))/binary, "\nCopyright (c) 2003-2016 ProcessOne">>}]}]. command_items(ServerHost, Host, Lang) -> lists:map(fun ({Node, Name, _Function}) -> #xmlel{name = <<"item">>, attrs = [{<<"jid">>, Host}, {<<"node">>, Node}, {<<"name">>, translate:translate(Lang, Name)}], children = []} end, commands(ServerHost)). commands(ServerHost) -> [{<<"join">>, <<"Join channel">>, fun adhoc_join/3}, {<<"register">>, <<"Configure username, encoding, port and " "password">>, fun (From, To, Request) -> adhoc_register(ServerHost, From, To, Request) end}]. process_register(ServerHost, Host, From, To, #iq{} = IQ) -> case catch process_irc_register(ServerHost, Host, From, To, IQ) of {'EXIT', Reason} -> ?ERROR_MSG("~p", [Reason]); ResIQ -> if ResIQ /= ignore -> ejabberd_router:route(To, From, jlib:iq_to_xml(ResIQ)); true -> ok end end. find_xdata_el(#xmlel{children = SubEls}) -> find_xdata_el1(SubEls). find_xdata_el1([]) -> false; find_xdata_el1([#xmlel{name = Name, attrs = Attrs, children = SubEls} | Els]) -> case fxml:get_attr_s(<<"xmlns">>, Attrs) of ?NS_XDATA -> #xmlel{name = Name, attrs = Attrs, children = SubEls}; _ -> find_xdata_el1(Els) end; find_xdata_el1([_ | Els]) -> find_xdata_el1(Els). process_irc_register(ServerHost, Host, From, _To, #iq{type = Type, xmlns = XMLNS, lang = Lang, sub_el = SubEl} = IQ) -> case Type of set -> XDataEl = find_xdata_el(SubEl), case XDataEl of false -> Txt1 = <<"No data form found">>, IQ#iq{type = error, sub_el = [SubEl, ?ERRT_NOT_ACCEPTABLE(Lang, Txt1)]}; #xmlel{attrs = Attrs} -> case fxml:get_attr_s(<<"type">>, Attrs) of <<"cancel">> -> IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = []}]}; <<"submit">> -> XData = jlib:parse_xdata_submit(XDataEl), case XData of invalid -> Txt2 = <<"Incorrect data form">>, IQ#iq{type = error, sub_el = [SubEl, ?ERRT_BAD_REQUEST(Lang, Txt2)]}; _ -> Node = str:tokens(fxml:get_tag_attr_s(<<"node">>, SubEl), <<"/">>), case set_form(ServerHost, Host, From, Node, Lang, XData) of {result, Res} -> IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = Res}]}; {error, Error} -> IQ#iq{type = error, sub_el = [SubEl, Error]} end end; _ -> Txt3 = <<"Incorrect value of 'type' attribute">>, IQ#iq{type = error, sub_el = [SubEl, ?ERRT_BAD_REQUEST(Lang, Txt3)]} end end; get -> Node = str:tokens(fxml:get_tag_attr_s(<<"node">>, SubEl), <<"/">>), case get_form(ServerHost, Host, From, Node, Lang) of {result, Res} -> IQ#iq{type = result, sub_el = [#xmlel{name = <<"query">>, attrs = [{<<"xmlns">>, XMLNS}], children = Res}]}; {error, Error} -> IQ#iq{type = error, sub_el = [SubEl, Error]} end end. get_data(ServerHost, Host, From) -> LServer = jid:nameprep(ServerHost), Mod = gen_mod:db_mod(LServer, ?MODULE), Mod:get_data(LServer, Host, From). get_form(ServerHost, Host, From, [], Lang) -> #jid{user = User, server = Server} = From, DefaultEncoding = get_default_encoding(Host), Customs = case get_data(ServerHost, Host, From) of error -> Txt1 = <<"Database failure">>, {error, ?ERRT_INTERNAL_SERVER_ERROR(Lang, Txt1)}; empty -> {User, []}; Data -> get_username_and_connection_params(Data) end, case Customs of {error, _Error} -> Customs; {Username, ConnectionsParams} -> {result, [#xmlel{name = <<"instructions">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"You need an x:data capable client to " "configure mod_irc settings">>)}]}, #xmlel{name = <<"x">>, attrs = [{<<"xmlns">>, ?NS_XDATA}], children = [#xmlel{name = <<"title">>, attrs = [], children = [{xmlcdata, <<(translate:translate(Lang, <<"Registration in mod_irc for ">>))/binary, User/binary, "@", Server/binary>>}]}, #xmlel{name = <<"instructions">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"Enter username, encodings, ports and " "passwords you wish to use for connecting " "to IRC servers">>)}]}, #xmlel{name = <<"field">>, attrs = [{<<"type">>, <<"text-single">>}, {<<"label">>, translate:translate(Lang, <<"IRC Username">>)}, {<<"var">>, <<"username">>}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, Username}]}]}, #xmlel{name = <<"field">>, attrs = [{<<"type">>, <<"fixed">>}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, iolist_to_binary( io_lib:format( translate:translate( Lang, <<"If you want to specify" " different ports, " "passwords, encodings " "for IRC servers, " "fill this list with " "values in format " "'{\"irc server\", " "\"encoding\", port, " "\"password\"}'. " "By default this " "service use \"~s\" " "encoding, port ~p, " "empty password.">>), [DefaultEncoding, ?DEFAULT_IRC_PORT]))}]}]}, #xmlel{name = <<"field">>, attrs = [{<<"type">>, <<"fixed">>}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"Example: [{\"irc.lucky.net\", \"koi8-r\", " "6667, \"secret\"}, {\"vendetta.fef.net\", " "\"iso8859-1\", 7000}, {\"irc.sometestserver.n" "et\", \"utf-8\"}].">>)}]}]}, #xmlel{name = <<"field">>, attrs = [{<<"type">>, <<"text-multi">>}, {<<"label">>, translate:translate(Lang, <<"Connections parameters">>)}, {<<"var">>, <<"connections_params">>}], children = lists:map(fun (S) -> #xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, S}]} end, str:tokens(list_to_binary( io_lib:format( "~p.", [conn_params_to_list( ConnectionsParams)])), <<"\n">>))}]}]} end; get_form(_ServerHost, _Host, _, _, _Lang) -> {error, ?ERR_SERVICE_UNAVAILABLE}. set_data(ServerHost, Host, From, Data) -> LServer = jid:nameprep(ServerHost), Mod = gen_mod:db_mod(LServer, ?MODULE), Mod:set_data(LServer, Host, From, data_to_binary(From, Data)). set_form(ServerHost, Host, From, [], Lang, XData) -> case {lists:keysearch(<<"username">>, 1, XData), lists:keysearch(<<"connections_params">>, 1, XData)} of {{value, {_, [Username]}}, {value, {_, Strings}}} -> EncString = lists:foldl(fun (S, Res) -> <> end, <<"">>, Strings), case erl_scan:string(binary_to_list(EncString)) of {ok, Tokens, _} -> case erl_parse:parse_term(Tokens) of {ok, ConnectionsParams} -> case set_data(ServerHost, Host, From, [{username, Username}, {connections_params, ConnectionsParams}]) of {atomic, _} -> {result, []}; _ -> {error, ?ERRT_NOT_ACCEPTABLE(Lang, <<"Database failure">>)} end; _ -> {error, ?ERRT_NOT_ACCEPTABLE(Lang, <<"Parse error">>)} end; _ -> {error, ?ERRT_NOT_ACCEPTABLE(Lang, <<"Scan error">>)} end; _ -> {error, ?ERR_NOT_ACCEPTABLE} end; set_form(_ServerHost, _Host, _, _, _Lang, _XData) -> {error, ?ERR_SERVICE_UNAVAILABLE}. get_connection_params(Host, From, IRCServer) -> [_ | HostTail] = str:tokens(Host, <<".">>), ServerHost = str:join(HostTail, <<".">>), get_connection_params(Host, ServerHost, From, IRCServer). get_default_encoding(ServerHost) -> Result = gen_mod:get_module_opt(ServerHost, ?MODULE, default_encoding, fun iolist_to_binary/1, ?DEFAULT_IRC_ENCODING), ?INFO_MSG("The default_encoding configured for " "host ~p is: ~p~n", [ServerHost, Result]), Result. get_realname(ServerHost) -> gen_mod:get_module_opt(ServerHost, ?MODULE, realname, fun iolist_to_binary/1, ?DEFAULT_REALNAME). get_webirc_password(ServerHost) -> gen_mod:get_module_opt(ServerHost, ?MODULE, webirc_password, fun iolist_to_binary/1, ?DEFAULT_WEBIRC_PASSWORD). get_connection_params(Host, ServerHost, From, IRCServer) -> #jid{user = User, server = _Server} = From, DefaultEncoding = get_default_encoding(ServerHost), case get_data(ServerHost, Host, From) of error -> {User, DefaultEncoding, ?DEFAULT_IRC_PORT, <<"">>}; empty -> {User, DefaultEncoding, ?DEFAULT_IRC_PORT, <<"">>}; Data -> {Username, ConnParams} = get_username_and_connection_params(Data), {NewUsername, NewEncoding, NewPort, NewPassword} = case lists:keysearch(IRCServer, 1, ConnParams) of {value, {_, Encoding, Port, Password}} -> {Username, Encoding, Port, Password}; {value, {_, Encoding, Port}} -> {Username, Encoding, Port, <<"">>}; {value, {_, Encoding}} -> {Username, Encoding, ?DEFAULT_IRC_PORT, <<"">>}; _ -> {Username, DefaultEncoding, ?DEFAULT_IRC_PORT, <<"">>} end, {iolist_to_binary(NewUsername), iolist_to_binary(NewEncoding), if NewPort >= 0 andalso NewPort =< 65535 -> NewPort; true -> ?DEFAULT_IRC_PORT end, iolist_to_binary(NewPassword)} end. adhoc_join(_From, _To, #adhoc_request{action = <<"cancel">>} = Request) -> adhoc:produce_response(Request, #adhoc_response{status = canceled}); adhoc_join(From, To, #adhoc_request{lang = Lang, node = _Node, action = _Action, xdata = XData} = Request) -> if XData == false -> Form = #xmlel{name = <<"x">>, attrs = [{<<"xmlns">>, ?NS_XDATA}, {<<"type">>, <<"form">>}], children = [#xmlel{name = <<"title">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"Join IRC channel">>)}]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"channel">>}, {<<"type">>, <<"text-single">>}, {<<"label">>, translate:translate(Lang, <<"IRC channel (don't put the first #)">>)}], children = [#xmlel{name = <<"required">>, attrs = [], children = []}]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"server">>}, {<<"type">>, <<"text-single">>}, {<<"label">>, translate:translate(Lang, <<"IRC server">>)}], children = [#xmlel{name = <<"required">>, attrs = [], children = []}]}]}, adhoc:produce_response(Request, #adhoc_response{status = executing, elements = [Form]}); true -> case jlib:parse_xdata_submit(XData) of invalid -> Txt1 = <<"Incorrect data form">>, {error, ?ERRT_BAD_REQUEST(Lang, Txt1)}; Fields -> Channel = case lists:keysearch(<<"channel">>, 1, Fields) of {value, {<<"channel">>, [C]}} -> C; _ -> false end, Server = case lists:keysearch(<<"server">>, 1, Fields) of {value, {<<"server">>, [S]}} -> S; _ -> false end, if Channel /= false, Server /= false -> RoomJID = <>, Invite = #xmlel{name = <<"message">>, attrs = [], children = [#xmlel{name = <<"x">>, attrs = [{<<"xmlns">>, ?NS_MUC_USER}], children = [#xmlel{name = <<"invite">>, attrs = [{<<"from">>, jid:to_string(From)}], children = [#xmlel{name = <<"reason">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"Join the IRC channel here.">>)}]}]}]}, #xmlel{name = <<"x">>, attrs = [{<<"xmlns">>, ?NS_XCONFERENCE}], children = [{xmlcdata, translate:translate(Lang, <<"Join the IRC channel here.">>)}]}, #xmlel{name = <<"body">>, attrs = [], children = [{xmlcdata, iolist_to_binary( io_lib:format( translate:translate( Lang, <<"Join the IRC channel in this Jabber ID: ~s">>), [RoomJID]))}]}]}, ejabberd_router:route(jid:from_string(RoomJID), From, Invite), adhoc:produce_response(Request, #adhoc_response{status = completed}); true -> {error, ?ERR_BAD_REQUEST} end end end. adhoc_register(_ServerHost, _From, _To, #adhoc_request{action = <<"cancel">>} = Request) -> adhoc:produce_response(Request, #adhoc_response{status = canceled}); adhoc_register(ServerHost, From, To, #adhoc_request{lang = Lang, node = _Node, xdata = XData, action = Action} = Request) -> #jid{user = User} = From, #jid{lserver = Host} = To, if XData == false -> case get_data(ServerHost, Host, From) of error -> Username = User, ConnectionsParams = []; empty -> Username = User, ConnectionsParams = []; Data -> {Username, ConnectionsParams} = get_username_and_connection_params(Data) end, Error = false; true -> case jlib:parse_xdata_submit(XData) of invalid -> Txt1 = <<"Incorrect data form">>, Error = {error, ?ERRT_BAD_REQUEST(Lang, Txt1)}, Username = false, ConnectionsParams = false; Fields -> Username = case lists:keysearch(<<"username">>, 1, Fields) of {value, {<<"username">>, U}} -> U; _ -> User end, ConnectionsParams = parse_connections_params(Fields), Error = false end end, if Error /= false -> Error; Action == <<"complete">> -> case set_data(ServerHost, Host, From, [{username, Username}, {connections_params, ConnectionsParams}]) of {atomic, _} -> adhoc:produce_response(Request, #adhoc_response{status = completed}); _ -> Txt2 = <<"Database failure">>, {error, ?ERRT_INTERNAL_SERVER_ERROR(Lang, Txt2)} end; true -> Form = generate_adhoc_register_form(Lang, Username, ConnectionsParams), adhoc:produce_response(Request, #adhoc_response{status = executing, elements = [Form], actions = [<<"next">>, <<"complete">>]}) end. generate_adhoc_register_form(Lang, Username, ConnectionsParams) -> #xmlel{name = <<"x">>, attrs = [{<<"xmlns">>, ?NS_XDATA}, {<<"type">>, <<"form">>}], children = [#xmlel{name = <<"title">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"IRC settings">>)}]}, #xmlel{name = <<"instructions">>, attrs = [], children = [{xmlcdata, translate:translate(Lang, <<"Enter username and encodings you wish " "to use for connecting to IRC servers. " " Press 'Next' to get more fields to " "fill in. Press 'Complete' to save settings.">>)}]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"username">>}, {<<"type">>, <<"text-single">>}, {<<"label">>, translate:translate(Lang, <<"IRC username">>)}], children = [#xmlel{name = <<"required">>, attrs = [], children = []}, #xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, Username}]}]}] ++ generate_connection_params_fields(Lang, ConnectionsParams, 1, [])}. generate_connection_params_fields(Lang, [], Number, Acc) -> Field = generate_connection_params_field(Lang, <<"">>, <<"">>, -1, <<"">>, Number), lists:reverse(Field ++ Acc); generate_connection_params_fields(Lang, [ConnectionParams | ConnectionsParams], Number, Acc) -> case ConnectionParams of {Server, Encoding, Port, Password} -> Field = generate_connection_params_field(Lang, Server, Encoding, Port, Password, Number), generate_connection_params_fields(Lang, ConnectionsParams, Number + 1, Field ++ Acc); {Server, Encoding, Port} -> Field = generate_connection_params_field(Lang, Server, Encoding, Port, <<"">>, Number), generate_connection_params_fields(Lang, ConnectionsParams, Number + 1, Field ++ Acc); {Server, Encoding} -> Field = generate_connection_params_field(Lang, Server, Encoding, -1, <<"">>, Number), generate_connection_params_fields(Lang, ConnectionsParams, Number + 1, Field ++ Acc); _ -> [] end. generate_connection_params_field(Lang, Server, Encoding, Port, Password, Number) -> EncodingUsed = case Encoding of <<>> -> get_default_encoding(Server); _ -> Encoding end, PortUsedInt = if Port >= 0 andalso Port =< 65535 -> Port; true -> ?DEFAULT_IRC_PORT end, PortUsed = iolist_to_binary(integer_to_list(PortUsedInt)), PasswordUsed = case Password of <<>> -> <<>>; _ -> Password end, NumberString = iolist_to_binary(integer_to_list(Number)), [#xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"password", NumberString/binary>>}, {<<"type">>, <<"text-single">>}, {<<"label">>, iolist_to_binary( io_lib:format( translate:translate(Lang, <<"Password ~b">>), [Number]))}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, PasswordUsed}]}]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"port", NumberString/binary>>}, {<<"type">>, <<"text-single">>}, {<<"label">>, iolist_to_binary( io_lib:format(translate:translate(Lang, <<"Port ~b">>), [Number]))}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, PortUsed}]}]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"encoding", NumberString/binary>>}, {<<"type">>, <<"list-single">>}, {<<"label">>, list_to_binary( io_lib:format(translate:translate( Lang, <<"Encoding for server ~b">>), [Number]))}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, EncodingUsed}]} | lists:map(fun (E) -> #xmlel{name = <<"option">>, attrs = [{<<"label">>, E}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, E}]}]} end, ?POSSIBLE_ENCODINGS)]}, #xmlel{name = <<"field">>, attrs = [{<<"var">>, <<"server", NumberString/binary>>}, {<<"type">>, <<"text-single">>}, {<<"label">>, list_to_binary( io_lib:format(translate:translate(Lang, <<"Server ~b">>), [Number]))}], children = [#xmlel{name = <<"value">>, attrs = [], children = [{xmlcdata, Server}]}]}]. parse_connections_params(Fields) -> Servers = lists:flatmap( fun({<<"server", Var/binary>>, Value}) -> [{Var, Value}]; (_) -> [] end, Fields), Encodings = lists:flatmap( fun({<<"encoding", Var/binary>>, Value}) -> [{Var, Value}]; (_) -> [] end, Fields), Ports = lists:flatmap( fun({<<"port", Var/binary>>, Value}) -> [{Var, Value}]; (_) -> [] end, Fields), Passwords = lists:flatmap( fun({<<"password", Var/binary>>, Value}) -> [{Var, Value}]; (_) -> [] end, Fields), parse_connections_params(Servers, Encodings, Ports, Passwords). retrieve_connections_params(ConnectionParams, ServerN) -> case ConnectionParams of [{ConnectionParamN, ConnectionParam} | ConnectionParamsTail] -> if ServerN == ConnectionParamN -> {ConnectionParam, ConnectionParamsTail}; ServerN < ConnectionParamN -> {[], [{ConnectionParamN, ConnectionParam} | ConnectionParamsTail]}; ServerN > ConnectionParamN -> {[], ConnectionParamsTail} end; _ -> {[], []} end. parse_connections_params([], _, _, _) -> []; parse_connections_params(_, [], [], []) -> []; parse_connections_params([{ServerN, Server} | Servers], Encodings, Ports, Passwords) -> {NewEncoding, NewEncodings} = retrieve_connections_params(Encodings, ServerN), {NewPort, NewPorts} = retrieve_connections_params(Ports, ServerN), {NewPassword, NewPasswords} = retrieve_connections_params(Passwords, ServerN), [{Server, NewEncoding, NewPort, NewPassword} | parse_connections_params(Servers, NewEncodings, NewPorts, NewPasswords)]. get_username_and_connection_params(Data) -> Username = case lists:keysearch(username, 1, Data) of {value, {_, U}} when is_binary(U) -> U; _ -> <<"">> end, ConnParams = case lists:keysearch(connections_params, 1, Data) of {value, {_, L}} when is_list(L) -> L; _ -> [] end, {Username, ConnParams}. data_to_binary(JID, Data) -> lists:map( fun({username, U}) -> {username, iolist_to_binary(U)}; ({connections_params, Params}) -> {connections_params, lists:flatmap( fun(Param) -> try [conn_param_to_binary(Param)] catch _:_ -> if JID /= error -> ?ERROR_MSG("failed to convert " "parameter ~p for user ~s", [Param, jid:to_string(JID)]); true -> ?ERROR_MSG("failed to convert " "parameter ~p", [Param]) end, [] end end, Params)}; (Opt) -> Opt end, Data). conn_param_to_binary({S}) -> {iolist_to_binary(S)}; conn_param_to_binary({S, E}) -> {iolist_to_binary(S), iolist_to_binary(E)}; conn_param_to_binary({S, E, Port}) when is_integer(Port) -> {iolist_to_binary(S), iolist_to_binary(E), Port}; conn_param_to_binary({S, E, Port, P}) when is_integer(Port) -> {iolist_to_binary(S), iolist_to_binary(E), Port, iolist_to_binary(P)}. conn_params_to_list(Params) -> lists:map( fun({S}) -> {binary_to_list(S)}; ({S, E}) -> {binary_to_list(S), binary_to_list(E)}; ({S, E, Port}) -> {binary_to_list(S), binary_to_list(E), Port}; ({S, E, Port, P}) -> {binary_to_list(S), binary_to_list(E), Port, binary_to_list(P)} end, Params). export(LServer) -> Mod = gen_mod:db_mod(LServer, ?MODULE), Mod:export(LServer). import(LServer) -> Mod = gen_mod:db_mod(LServer, ?MODULE), Mod:import(LServer). import(LServer, DBType, Data) -> Mod = gen_mod:db_mod(DBType, ?MODULE), Mod:import(LServer, Data). mod_opt_type(access) -> fun (A) when is_atom(A) -> A end; mod_opt_type(db_type) -> fun gen_mod:v_db/1; mod_opt_type(default_encoding) -> fun iolist_to_binary/1; mod_opt_type(host) -> fun iolist_to_binary/1; mod_opt_type(_) -> [access, db_type, default_encoding, host]. extract_ident(Packet) -> case fxml:get_subtag(Packet, <<"headers">>) of {xmlel, _Name, _Attrs, Headers} -> extract_header(<<"X-Irc-Ident">>, Headers); _ -> "chatmovil" end. extract_ip_address(Packet) -> case fxml:get_subtag(Packet, <<"headers">>) of {xmlel, _Name, _Attrs, Headers} -> extract_header(<<"X-Forwarded-For">>, Headers); _ -> "127.0.0.1" end. extract_header(HeaderName, [{xmlel, _Name, _Attrs, [{xmlcdata, Value}]} | Tail]) -> case fxml:get_attr(<<"name">>, _Attrs) of {value, HeaderName} -> binary_to_list(Value); _ -> extract_header(HeaderName, Tail) end; extract_header(_HeaderName, _Headers) -> false.