From 88227898edd26a823d0942fc7226adb61a20cb5d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= Date: Mon, 13 Jun 2016 13:23:22 +0200 Subject: Merge static_world and web_server examples The new example is called file_server and it's basically the same as web_server was. The name is clearer than the original, all examples being "Web servers". The new example is also tested and the test suite has been refactored a little. --- examples/file_server/src/directory_handler.erl | 47 ++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 examples/file_server/src/directory_handler.erl (limited to 'examples/file_server/src/directory_handler.erl') diff --git a/examples/file_server/src/directory_handler.erl b/examples/file_server/src/directory_handler.erl new file mode 100644 index 0000000..d16e014 --- /dev/null +++ b/examples/file_server/src/directory_handler.erl @@ -0,0 +1,47 @@ +%% Feel free to use, reuse and abuse the code in this file. + +%% @doc Directory handler. +-module(directory_handler). + +%% REST Callbacks +-export([init/2]). +-export([allowed_methods/2]). +-export([resource_exists/2]). +-export([content_types_provided/2]). + +%% Callback Callbacks +-export([list_json/2]). +-export([list_html/2]). + +init(Req, Paths) -> + {cowboy_rest, Req, Paths}. + +allowed_methods(Req, State) -> + {[<<"GET">>], Req, State}. + +resource_exists(Req, {ReqPath, FilePath}) -> + case file:list_dir(FilePath) of + {ok, Fs} -> {true, Req, {ReqPath, lists:sort(Fs)}}; + _Err -> {false, Req, {ReqPath, FilePath}} + end. + +content_types_provided(Req, State) -> + {[ + {{<<"text">>, <<"html">>, []}, list_html}, + {{<<"application">>, <<"json">>, []}, list_json} + ], Req, State}. + +list_json(Req, {Path, Fs}) -> + Files = [ <<(list_to_binary(F))/binary>> || F <- Fs ], + {jsx:encode(Files), Req, Path}. + +list_html(Req, {Path, Fs}) -> + Body = [[ links(Path, F) || F <- [".."|Fs] ]], + HTML = [<<"Index", + "">>, Body, <<"\n">>], + {HTML, Req, Path}. + +links(<<>>, File) -> + ["", File, "
\n"]; +links(Prefix, File) -> + ["", File, "
\n"]. -- cgit v1.2.3