%%%----------------------------------------------------------------------
%%% File    : ejabberd_web.erl
%%% Author  : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : 
%%% Created : 28 Feb 2004 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2007   Process-one
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
%%% General Public License for more details.
%%%                         
%%% You should have received a copy of the GNU General Public License
%%% along with this program; if not, write to the Free Software
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 USA
%%%
%%%----------------------------------------------------------------------

-module(ejabberd_web).
-author('alexey@process-one.net').

%% External exports
-export([make_xhtml/1,
         error/1]).

-include("ejabberd.hrl").
-include("jlib.hrl").
-include("ejabberd_http.hrl").


%% XXX bard: there are variants of make_xhtml in ejabberd_http and
%% ejabberd_web_admin.  It might be a good idea to centralize it here
%% and also create an ejabberd_web.hrl file holding the macros, so
%% that third parties can use ejabberd_web as an "utility" library.

make_xhtml(Els) ->
    {xmlelement, "html", [{"xmlns", "http://www.w3.org/1999/xhtml"},
			  {"xml:lang", "en"},
			  {"lang", "en"}],
     [{xmlelement, "head", [],
       [{xmlelement, "meta", [{"http-equiv", "Content-Type"},
			      {"content", "text/html; charset=utf-8"}], []}]},
      {xmlelement, "body", [], Els}
     ]}.


-define(X(Name), {xmlelement, Name, [], []}).
-define(XA(Name, Attrs), {xmlelement, Name, Attrs, []}).
-define(XE(Name, Els), {xmlelement, Name, [], Els}).
-define(XAE(Name, Attrs, Els), {xmlelement, Name, Attrs, Els}).
-define(C(Text), {xmlcdata, Text}).
-define(XC(Name, Text), ?XE(Name, [?C(Text)])).
-define(XAC(Name, Attrs, Text), ?XAE(Name, Attrs, [?C(Text)])).

-define(LI(Els), ?XE("li", Els)).
-define(A(URL, Els), ?XAE("a", [{"href", URL}], Els)).
-define(AC(URL, Text), ?A(URL, [?C(Text)])).
-define(P, ?X("p")).
-define(BR, ?X("br")).
-define(INPUT(Type, Name, Value),
	?XA("input", [{"type", Type},
		      {"name", Name},
		      {"value", Value}])).

error(not_found) ->
    {404, [], make_xhtml([?XC("h1", "404 Not Found")])};
error(not_allowed) ->
    {401, [], make_xhtml([?XC("h1", "401 Unauthorized")])}.