2012-07-21 22:19:13 +02:00
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%% Feel free to use, reuse and abuse the code in this file.
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%% @doc POST echo handler.
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-module(toppage_handler).
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2014-09-26 15:58:44 +03:00
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-export([init/2]).
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2012-07-21 22:19:13 +02:00
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2014-09-26 15:58:44 +03:00
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init(Req, Opts) ->
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2014-09-23 16:43:29 +03:00
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Method = cowboy_req:method(Req),
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HasBody = cowboy_req:has_body(Req),
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Req2 = maybe_echo(Method, HasBody, Req),
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2014-09-30 20:12:13 +03:00
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{ok, Req2, Opts}.
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2012-07-21 22:19:13 +02:00
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2012-09-20 06:22:51 +02:00
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maybe_echo(<<"POST">>, true, Req) ->
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2012-09-16 03:51:07 +02:00
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{ok, PostVals, Req2} = cowboy_req:body_qs(Req),
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2012-07-21 22:19:13 +02:00
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Echo = proplists:get_value(<<"echo">>, PostVals),
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2016-06-08 23:35:02 +02:00
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echo(Echo, Req2),
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Req2;
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2012-09-20 06:22:51 +02:00
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maybe_echo(<<"POST">>, false, Req) ->
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2016-06-08 23:35:02 +02:00
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cowboy_req:reply(400, [], <<"Missing body.">>, Req),
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Req;
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2012-07-21 22:19:13 +02:00
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maybe_echo(_, _, Req) ->
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%% Method not allowed.
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2016-06-08 23:35:02 +02:00
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cowboy_req:reply(405, Req),
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Req.
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2012-07-21 22:19:13 +02:00
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echo(undefined, Req) ->
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2012-08-27 13:28:57 +02:00
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cowboy_req:reply(400, [], <<"Missing echo parameter.">>, Req);
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2012-07-21 22:19:13 +02:00
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echo(Echo, Req) ->
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2016-06-08 23:35:02 +02:00
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cowboy_req:reply(200, #{
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<<"content-type">> => <<"text/plain; charset=utf-8">>
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}, Echo, Req).
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