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* src/idna.erl: Support for IDNA (RFC3490)
* src/ejabberd_s2s_out.erl: Likewise * src/xml.erl: element_to_string/1 and crypt/1 now returns deep list * src/mod_muc/mod_muc_room.erl (add_message_to_history): Replaced string:len with lists:flatlength SVN Revision: 222
This commit is contained in:
Alexey Shchepin
parent
b75fb79677
commit
6f600f1a37
12
ChangeLog
12
ChangeLog
@ -1,3 +1,15 @@
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2004-04-10 Alexey Shchepin <alexey@sevcom.net>
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* src/idna.erl: Support for IDNA (RFC3490)
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* src/ejabberd_s2s_out.erl: Likewise
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2004-04-03 Alexey Shchepin <alexey@sevcom.net>
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* src/xml.erl: element_to_string/1 and crypt/1 now returns deep
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list
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* src/mod_muc/mod_muc_room.erl (add_message_to_history): Replaced
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string:len with lists:flatlength
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2004-03-21 Alexey Shchepin <alexey@sevcom.net>
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* (all): Updated win32 stuff (thanks to Sergei Golovan)
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@ -108,14 +108,18 @@ init([From, Server, Type]) ->
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%%----------------------------------------------------------------------
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open_socket(init, StateData) ->
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{Addr, Port} = get_addr_port(StateData#state.server),
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?DEBUG("s2s_out: connecting to ~s:~p~n", [Addr, Port]),
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Res = case gen_tcp:connect(Addr, Port,
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[binary, {packet, 0}]) of
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{ok, _Socket} = R -> R;
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{error, Reason1} ->
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?DEBUG("s2s_out: connect return ~p~n", [Reason1]),
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catch gen_tcp:connect(Addr, Port,
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[binary, {packet, 0}, inet6])
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Res = case idna:domain_utf8_to_ascii(Addr) of
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false -> {error, badarg};
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ASCIIAddr ->
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?DEBUG("s2s_out: connecting to ~s:~p~n", [ASCIIAddr, Port]),
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case gen_tcp:connect(ASCIIAddr, Port,
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[binary, {packet, 0}]) of
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{ok, _Socket} = R -> R;
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{error, Reason1} ->
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?DEBUG("s2s_out: connect return ~p~n", [Reason1]),
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catch gen_tcp:connect(Addr, Port,
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[binary, {packet, 0}, inet6])
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end
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end,
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case Res of
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{ok, Socket} ->
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179
src/idna.erl
Normal file
179
src/idna.erl
Normal file
@ -0,0 +1,179 @@
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%%%----------------------------------------------------------------------
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%%% File : idna.erl
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%%% Author : Alexey Shchepin <alexey@sevcom.net>
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%%% Purpose : Support for IDNA (RFC3490)
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%%% Created : 10 Apr 2004 by Alexey Shchepin <alexey@sevcom.net>
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%%% Id : $Id$
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%%%----------------------------------------------------------------------
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-module(idna).
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-author('alexey@sevcom.net').
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-vsn('$Revision$ ').
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%-compile(export_all).
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-export([domain_utf8_to_ascii/1,
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domain_ucs2_to_ascii/1]).
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domain_utf8_to_ascii(Domain) ->
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domain_ucs2_to_ascii(utf8_to_ucs2(Domain)).
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utf8_to_ucs2(S) ->
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utf8_to_ucs2(S, "").
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utf8_to_ucs2([], R) ->
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lists:reverse(R);
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utf8_to_ucs2([C | S], R) when C < 16#80 ->
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utf8_to_ucs2(S, [C | R]);
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utf8_to_ucs2([C1, C2 | S], R) when C1 < 16#E0 ->
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utf8_to_ucs2(S, [((C1 band 16#1F) bsl 6) bor
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(C2 band 16#3F) | R]);
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utf8_to_ucs2([C1, C2, C3 | S], R) when C1 < 16#F0 ->
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utf8_to_ucs2(S, [((C1 band 16#0F) bsl 12) bor
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((C2 band 16#3F) bsl 6) bor
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(C3 band 16#3F) | R]).
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domain_ucs2_to_ascii(Domain) ->
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case catch domain_ucs2_to_ascii1(Domain) of
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{'EXIT', _Reason} ->
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false;
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Res ->
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Res
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end.
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domain_ucs2_to_ascii1(Domain) ->
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Parts = string:tokens(Domain, [16#002E, 16#3002, 16#FF0E, 16#FF61]),
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ASCIIParts = lists:map(fun(P) ->
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to_ascii(P)
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end, Parts),
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string:strip(lists:flatmap(fun(P) -> [$. | P] end, ASCIIParts),
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left, $.).
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% Domain names are already nameprep'ed in ejabberd, so we skiping this step
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to_ascii(Name) ->
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false = lists:any(
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fun(C) when
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( 0 =< C) and (C =< 16#2C) or
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(16#2E =< C) and (C =< 16#2F) or
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(16#3A =< C) and (C =< 16#40) or
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(16#5B =< C) and (C =< 16#60) or
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(16#7B =< C) and (C =< 16#7F) ->
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true;
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(_) ->
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false
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end, Name),
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case Name of
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[H | _] when H /= $- ->
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true = lists:last(Name) /= $-
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end,
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ASCIIName = case lists:any(fun(C) -> C > 16#7F end, Name) of
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true ->
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true = case Name of
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"xn--" ++ _ -> false;
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_ -> true
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end,
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"xn--" ++ punycode_encode(Name);
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false ->
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Name
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end,
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L = length(ASCIIName),
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true = (1 =< L) and (L =< 63),
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ASCIIName.
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%%% PUNYCODE (RFC3492)
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-define(BASE, 36).
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-define(TMIN, 1).
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-define(TMAX, 26).
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-define(SKEW, 38).
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-define(DAMP, 700).
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-define(INITIAL_BIAS, 72).
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-define(INITIAL_N, 128).
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punycode_encode(Input) ->
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N = ?INITIAL_N,
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Delta = 0,
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Bias = ?INITIAL_BIAS,
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Basic = lists:filter(fun(C) -> C =< 16#7f end, Input),
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NonBasic = lists:filter(fun(C) -> C > 16#7f end, Input),
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L = length(Input),
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B = length(Basic),
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SNonBasic = lists:usort(NonBasic),
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Output1 = if
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B > 0 -> Basic ++ "-";
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true -> ""
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end,
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Output2 = punycode_encode1(Input, SNonBasic, B, B, L, N, Delta, Bias, ""),
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Output1 ++ Output2.
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punycode_encode1(Input, [M | SNonBasic], B, H, L, N, Delta, Bias, Out)
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when H < L ->
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Delta1 = Delta + (M - N) * (H + 1),
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% let n = m
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{NewDelta, NewBias, NewH, NewOut} =
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lists:foldl(
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fun(C, {ADelta, ABias, AH, AOut}) ->
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if
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C < M ->
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{ADelta + 1, ABias, AH, AOut};
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C == M ->
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NewOut = punycode_encode_delta(ADelta, ABias, AOut),
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NewBias = adapt(ADelta, H + 1, H == B),
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{0, NewBias, AH + 1, NewOut};
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true ->
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{ADelta, ABias, AH, AOut}
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end
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end, {Delta1, Bias, H, Out}, Input),
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punycode_encode1(
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Input, SNonBasic, B, NewH, L, M + 1, NewDelta + 1, NewBias, NewOut);
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punycode_encode1(Input, SNonBasic, B, H, L, N, Delta, Bias, Out) ->
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lists:reverse(Out).
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punycode_encode_delta(Delta, Bias, Out) ->
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punycode_encode_delta(Delta, Bias, Out, ?BASE).
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punycode_encode_delta(Delta, Bias, Out, K) ->
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T = if
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K =< Bias -> ?TMIN;
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K >= Bias + ?TMAX -> ?TMAX;
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true -> K - Bias
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end,
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if
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Delta < T ->
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[codepoint(Delta) | Out];
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true ->
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C = T + ((Delta - T) rem (?BASE - T)),
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punycode_encode_delta((Delta - T) div (?BASE - T), Bias,
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[codepoint(C) | Out], K + ?BASE)
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end.
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adapt(Delta, NumPoints, FirstTime) ->
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Delta1 = if
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FirstTime -> Delta div ?DAMP;
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true -> Delta div 2
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end,
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Delta2 = Delta1 + (Delta1 div NumPoints),
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adapt1(Delta2, 0).
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adapt1(Delta, K) ->
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if
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Delta > ((?BASE - ?TMIN) * ?TMAX) div 2 ->
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adapt1(Delta div (?BASE - ?TMIN), K + ?BASE);
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true ->
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K + (((?BASE - ?TMIN + 1) * Delta) div (Delta + ?SKEW))
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end.
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codepoint(C) ->
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if
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(0 =< C) and (C =< 25) ->
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C + 97;
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(26 =< C) and (C =< 35) ->
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C + 22
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end.
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@ -1383,7 +1383,7 @@ add_message_to_history(FromNick, Packet, StateData) ->
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jlib:jid_replace_resource(StateData#state.jid, FromNick),
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StateData#state.jid,
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TSPacket),
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Size = string:len(xml:element_to_string(SPacket)),
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Size = lists:flatlength(xml:element_to_string(SPacket)),
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Q1 = lqueue_in({FromNick, TSPacket, HaveSubject, TimeStamp, Size},
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StateData#state.history),
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StateData#state{history = Q1}.
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103
src/xml.erl
103
src/xml.erl
@ -20,26 +20,26 @@
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get_path_s/2,
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replace_tag_attr/3]).
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element_to_string(El) ->
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case El of
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{xmlelement, Name, Attrs, Els} ->
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if length(Els) > 0 ->
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"<" ++ Name ++ attrs_to_string(Attrs) ++ ">" ++
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lists:append(
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lists:map(fun(E) -> element_to_string(E) end, Els))
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++ "</" ++ Name ++ ">";
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true ->
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"<" ++ Name ++ attrs_to_string(Attrs) ++ "/>"
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end;
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{xmlcdata, CData} -> crypt(CData)
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end.
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attrs_to_string(Attrs) ->
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lists:append(lists:map(fun(A) -> attr_to_string(A) end, Attrs)).
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attr_to_string({Name, Value}) ->
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" " ++ crypt(Name) ++ "='" ++ crypt(Value) ++ "'".
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%element_to_string(El) ->
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% case El of
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% {xmlelement, Name, Attrs, Els} ->
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% if length(Els) > 0 ->
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% "<" ++ Name ++ attrs_to_string(Attrs) ++ ">" ++
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% lists:append(
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% lists:map(fun(E) -> element_to_string(E) end, Els))
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% ++ "</" ++ Name ++ ">";
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% true ->
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% "<" ++ Name ++ attrs_to_string(Attrs) ++ "/>"
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% end;
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% {xmlcdata, CData} -> crypt(CData)
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% end.
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%
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%
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%attrs_to_string(Attrs) ->
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% lists:append(lists:map(fun(A) -> attr_to_string(A) end, Attrs)).
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%
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%attr_to_string({Name, Value}) ->
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% " " ++ crypt(Name) ++ "='" ++ crypt(Value) ++ "'".
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%element_to_string2(El) ->
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@ -64,25 +64,56 @@ attr_to_string({Name, Value}) ->
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%attr_to_list({Name, Value}) ->
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% [" ", crypt(Name), "='", crypt(Value), "'"].
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element_to_string(El) ->
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case El of
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{xmlelement, Name, Attrs, Els} ->
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if
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Els /= [] ->
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[$<, Name, attrs_to_list(Attrs), $>,
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[element_to_string(E) || E <- Els],
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$<, $/, Name, $>];
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true ->
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[$<, Name, attrs_to_list(Attrs), $/, $>]
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end;
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{xmlcdata, CData} ->
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crypt(CData)
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end.
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attrs_to_list(Attrs) ->
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[attr_to_list(A) || A <- Attrs].
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attr_to_list({Name, Value}) ->
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[$\s, crypt(Name), $=, $', crypt(Value), $'].
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%crypt(S) ->
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% lists:reverse(crypt(S, "")).
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%
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%crypt([$& | S], R) ->
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% crypt(S, [$;, $p, $m, $a, $& | R]);
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%crypt([$< | S], R) ->
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% crypt(S, [$;, $t, $l, $& | R]);
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%crypt([$> | S], R) ->
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% crypt(S, [$;, $t, $g, $& | R]);
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%crypt([$" | S], R) ->
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% crypt(S, [$;, $t, $o, $u, $q, $& | R]);
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%crypt([$' | S], R) ->
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% crypt(S, [$;, $s, $o, $p, $a, $& | R]);
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%crypt([C | S], R) ->
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% crypt(S, [C | R]);
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%crypt([], R) ->
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% R.
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crypt(S) ->
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lists:reverse(crypt(S, "")).
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crypt([$& | S], R) ->
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crypt(S, [$;, $p, $m, $a, $& | R]);
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crypt([$< | S], R) ->
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crypt(S, [$;, $t, $l, $& | R]);
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crypt([$> | S], R) ->
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crypt(S, [$;, $t, $g, $& | R]);
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crypt([$" | S], R) ->
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crypt(S, [$;, $t, $o, $u, $q, $& | R]);
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crypt([$' | S], R) ->
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crypt(S, [$;, $s, $o, $p, $a, $& | R]);
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crypt([C | S], R) ->
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crypt(S, [C | R]);
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crypt([], R) ->
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R.
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[case C of
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$& -> "&";
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$< -> "<";
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$> -> ">";
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$" -> """;
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$' -> "'";
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_ -> C
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end || C <- S].
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%crypt1(S) ->
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% lists:flatten([case C of
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