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% Simple Bridge
% Copyright (c) 2008-2010 Rusty Klophaus
% See MIT-LICENSE for licensing information.
-module (inets_response_bridge).
-behaviour (simple_bridge_response).
-include_lib ("simple_bridge.hrl").
-export ([build_response/2,init/1]).
init(Req) ->
Req.
build_response(Req, Res) ->
ResponseCode = Res#response.statuscode,
case Res#response.data of
{data, Data} ->
Size = integer_to_list(httpd_util:flatlength(Data)),
% Assemble headers...
Headers = lists:flatten([
{code, ResponseCode},
{content_length, Size},
[{massage(X#header.name), X#header.value} || X <- Res#response.headers],
[create_cookie_header(X) || X <- Res#response.cookies]
]),
% Send the inets response...
{break,[
{response, {response, Headers, Data}}
]};
{file, _Path} ->
mod_get:do(Req)
end.
create_cookie_header(Cookie) ->
SecondsToLive = Cookie#cookie.minutes_to_live * 60,
Expire = to_cookie_expire(SecondsToLive),
Name = Cookie#cookie.name,
Value = Cookie#cookie.value,
Path = Cookie#cookie.path,
{"Set-Cookie", io_lib:format("~s=~s; Path=~s; Expires=~s", [Name, Value, Path, Expire])}.
to_cookie_expire(SecondsToLive) ->
Seconds = calendar:datetime_to_gregorian_seconds(calendar:local_time()),
DateTime = calendar:gregorian_seconds_to_datetime(Seconds + SecondsToLive),
httpd_util:rfc1123_date(DateTime).
%% Inets wants some headers as lowercase atoms, so we
%% need to do some special massage here.
massage(Header) ->
X = list_to_atom(
binary_to_list(
list_to_binary(
re:replace(string:to_lower(a2l(Header)),"-","_")))),
case lists:member(X, special_headers()) of
true -> X;
false -> Header
end.
special_headers() ->
[accept_ranges , allow , cache_control , content_MD5 , content_encoding ,
content_language , content_length , content_location , content_range ,
content_type , date , etag , expires , last_modified , location ,
pragma , retry_after , server , trailer , transfer_encoding].
a2l(A) when is_atom(A) -> atom_to_list(A);
a2l(L) when is_list(L) -> L.
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