%% @author Bob Ippolito %% @copyright 2007 Mochi Media, Inc. %% @doc HTTP server. -module(mochiweb_http). -author('bob@mochimedia.com'). -export([start/0, start/1, stop/0, stop/1]). -export([loop/2, default_body/1]). -export([after_response/2, reentry/1]). -define(IDLE_TIMEOUT, 30000). -define(MAX_HEADERS, 1000). -define(DEFAULTS, [{name, ?MODULE}, {port, 8888}]). set_default({Prop, Value}, PropList) -> case proplists:is_defined(Prop, PropList) of true -> PropList; false -> [{Prop, Value} | PropList] end. set_defaults(Defaults, PropList) -> lists:foldl(fun set_default/2, PropList, Defaults). parse_options(Options) -> {loop, HttpLoop} = proplists:lookup(loop, Options), Loop = fun (S) -> ?MODULE:loop(S, HttpLoop) end, Options1 = [{loop, Loop} | proplists:delete(loop, Options)], set_defaults(?DEFAULTS, Options1). stop() -> mochiweb_socket_server:stop(?MODULE). stop(Name) -> mochiweb_socket_server:stop(Name). start() -> start([{ip, "127.0.0.1"}, {loop, {?MODULE, default_body}}]). start(Options) -> mochiweb_socket_server:start(parse_options(Options)). frm(Body) -> ["" "" "
" "" "

", Body, "

" ""]. default_body(Req, M, "/chunked") when M =:= 'GET'; M =:= 'HEAD' -> Res = Req:ok({"text/plain", [], chunked}), Res:write_chunk("First chunk\r\n"), timer:sleep(5000), Res:write_chunk("Last chunk\r\n"), Res:write_chunk(""); default_body(Req, M, _Path) when M =:= 'GET'; M =:= 'HEAD' -> Body = io_lib:format("~p~n", [[{parse_qs, Req:parse_qs()}, {parse_cookie, Req:parse_cookie()}, Req:dump()]]), Req:ok({"text/html", [mochiweb_cookies:cookie("mochiweb_http", "test_cookie")], frm(Body)}); default_body(Req, 'POST', "/multipart") -> Body = io_lib:format("~p~n", [[{parse_qs, Req:parse_qs()}, {parse_cookie, Req:parse_cookie()}, {body, Req:recv_body()}, Req:dump()]]), Req:ok({"text/html", [], frm(Body)}); default_body(Req, 'POST', _Path) -> Body = io_lib:format("~p~n", [[{parse_qs, Req:parse_qs()}, {parse_cookie, Req:parse_cookie()}, {parse_post, Req:parse_post()}, Req:dump()]]), Req:ok({"text/html", [], frm(Body)}); default_body(Req, _Method, _Path) -> Req:respond({501, [], []}). default_body(Req) -> default_body(Req, Req:get(method), Req:get(path)). loop(Socket, Body) -> inet:setopts(Socket, [{packet, http}]), request(Socket, Body). request(Socket, Body) -> case gen_tcp:recv(Socket, 0, ?IDLE_TIMEOUT) of {ok, {http_request, Method, Path, Version}} -> headers(Socket, {Method, Path, Version}, [], Body, 0); {error, {http_error, "\r\n"}} -> request(Socket, Body); {error, {http_error, "\n"}} -> request(Socket, Body); _Other -> gen_tcp:close(Socket), exit(normal) end. reentry(Body) -> fun (Req) -> ?MODULE:after_response(Body, Req) end. headers(Socket, Request, Headers, _Body, ?MAX_HEADERS) -> %% Too many headers sent, bad request. inet:setopts(Socket, [{packet, raw}]), Req = mochiweb:new_request({Socket, Request, lists:reverse(Headers)}), Req:respond({400, [], []}), gen_tcp:close(Socket), exit(normal); headers(Socket, Request, Headers, Body, HeaderCount) -> case gen_tcp:recv(Socket, 0, ?IDLE_TIMEOUT) of {ok, http_eoh} -> inet:setopts(Socket, [{packet, raw}]), Req = mochiweb:new_request({Socket, Request, lists:reverse(Headers)}), Body(Req), ?MODULE:after_response(Body, Req); {ok, {http_header, _, Name, _, Value}} -> headers(Socket, Request, [{Name, Value} | Headers], Body, 1 + HeaderCount); _Other -> gen_tcp:close(Socket), exit(normal) end. after_response(Body, Req) -> Socket = Req:get(socket), case Req:should_close() of true -> gen_tcp:close(Socket), exit(normal); false -> Req:cleanup(), ?MODULE:loop(Socket, Body) end.