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39 lines
1.1 KiB
Erlang
39 lines
1.1 KiB
Erlang
%% Feel free to use, reuse and abuse the code in this file.
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-module(http_handler_body_qs).
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-behaviour(cowboy_http_handler).
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-export([init/3, handle/2, terminate/3]).
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init({_, http}, Req, _) ->
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{ok, Req, undefined}.
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handle(Req, State) ->
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{Method, Req2} = cowboy_req:method(Req),
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HasBody = cowboy_req:has_body(Req2),
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{ok, Req3} = maybe_echo(Method, HasBody, Req2),
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{ok, Req3, State}.
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maybe_echo(<<"POST">>, true, Req) ->
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case cowboy_req:body_qs(Req) of
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{error,badlength} ->
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echo(badlength, Req);
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{ok, PostVals, Req2} ->
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echo(proplists:get_value(<<"echo">>, PostVals), Req2)
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end;
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maybe_echo(<<"POST">>, false, Req) ->
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cowboy_req:reply(400, [], <<"Missing body.">>, Req);
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maybe_echo(_, _, Req) ->
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%% Method not allowed.
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cowboy_req:reply(405, Req).
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echo(badlength, Req) ->
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cowboy_req:reply(413, [], <<"POST body bigger than 16000 bytes">>, Req);
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echo(undefined, Req) ->
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cowboy_req:reply(400, [], <<"Missing echo parameter.">>, Req);
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echo(Echo, Req) ->
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cowboy_req:reply(200,
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[{<<"content-encoding">>, <<"utf-8">>}], Echo, Req).
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terminate(_, _, _) ->
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ok.
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