From 01f57ad65d7c75fb455f48e354bb3a328c472ce4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 7 Jan 2013 22:42:16 +0100
Subject: Add optional automatic response body compression

This behavior can be enabled with the `compress` protocol option.
See the `compress_response` example for more details.

All tests are now ran with and without compression for both HTTP
and HTTPS.
---
 .../src/compress_response.app.src                  | 15 +++++++++++
 .../compress_response/src/compress_response.erl    | 14 ++++++++++
 .../src/compress_response_app.erl                  | 26 ++++++++++++++++++
 .../src/compress_response_sup.erl                  | 23 ++++++++++++++++
 examples/compress_response/src/toppage_handler.erl | 31 ++++++++++++++++++++++
 5 files changed, 109 insertions(+)
 create mode 100644 examples/compress_response/src/compress_response.app.src
 create mode 100644 examples/compress_response/src/compress_response.erl
 create mode 100644 examples/compress_response/src/compress_response_app.erl
 create mode 100644 examples/compress_response/src/compress_response_sup.erl
 create mode 100644 examples/compress_response/src/toppage_handler.erl

(limited to 'examples/compress_response/src')

diff --git a/examples/compress_response/src/compress_response.app.src b/examples/compress_response/src/compress_response.app.src
new file mode 100644
index 0000000..3512084
--- /dev/null
+++ b/examples/compress_response/src/compress_response.app.src
@@ -0,0 +1,15 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+{application, compress_response, [
+	{description, "Cowboy Compress Response example."},
+	{vsn, "1"},
+	{modules, []},
+	{registered, []},
+	{applications, [
+		kernel,
+		stdlib,
+		cowboy
+	]},
+	{mod, {compress_response_app, []}},
+	{env, []}
+]}.
diff --git a/examples/compress_response/src/compress_response.erl b/examples/compress_response/src/compress_response.erl
new file mode 100644
index 0000000..ac2636c
--- /dev/null
+++ b/examples/compress_response/src/compress_response.erl
@@ -0,0 +1,14 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+-module(compress_response).
+
+%% API.
+-export([start/0]).
+
+%% API.
+
+start() ->
+	ok = application:start(crypto),
+	ok = application:start(ranch),
+	ok = application:start(cowboy),
+	ok = application:start(compress_response).
diff --git a/examples/compress_response/src/compress_response_app.erl b/examples/compress_response/src/compress_response_app.erl
new file mode 100644
index 0000000..b5f3054
--- /dev/null
+++ b/examples/compress_response/src/compress_response_app.erl
@@ -0,0 +1,26 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+%% @private
+-module(compress_response_app).
+-behaviour(application).
+
+%% API.
+-export([start/2]).
+-export([stop/1]).
+
+%% API.
+
+start(_Type, _Args) ->
+	Dispatch = [
+		{'_', [
+			{[], toppage_handler, []}
+		]}
+	],
+	{ok, _} = cowboy:start_http(http, 100, [{port, 8080}], [
+		{compress, true},
+		{env, [{dispatch, Dispatch}]}
+	]),
+	compress_response_sup:start_link().
+
+stop(_State) ->
+	ok.
diff --git a/examples/compress_response/src/compress_response_sup.erl b/examples/compress_response/src/compress_response_sup.erl
new file mode 100644
index 0000000..d1bc312
--- /dev/null
+++ b/examples/compress_response/src/compress_response_sup.erl
@@ -0,0 +1,23 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+%% @private
+-module(compress_response_sup).
+-behaviour(supervisor).
+
+%% API.
+-export([start_link/0]).
+
+%% supervisor.
+-export([init/1]).
+
+%% API.
+
+-spec start_link() -> {ok, pid()}.
+start_link() ->
+	supervisor:start_link({local, ?MODULE}, ?MODULE, []).
+
+%% supervisor.
+
+init([]) ->
+	Procs = [],
+	{ok, {{one_for_one, 10, 10}, Procs}}.
diff --git a/examples/compress_response/src/toppage_handler.erl b/examples/compress_response/src/toppage_handler.erl
new file mode 100644
index 0000000..68d0e09
--- /dev/null
+++ b/examples/compress_response/src/toppage_handler.erl
@@ -0,0 +1,31 @@
+%% Feel free to use, reuse and abuse the code in this file.
+
+%% @doc Compress response handler.
+-module(toppage_handler).
+
+-export([init/3]).
+-export([handle/2]).
+-export([terminate/2]).
+
+init(_Transport, Req, []) ->
+	{ok, Req, undefined}.
+
+handle(Req, State) ->
+	BigBody =
+<<"A cowboy is an animal herder who tends cattle on ranches in North America,
+traditionally on horseback, and often performs a multitude of other ranch-
+related tasks. The historic American cowboy of the late 19th century arose
+from the vaquero traditions of northern Mexico and became a figure of special
+significance and legend. A subtype, called a wrangler, specifically tends the
+horses used to work cattle. In addition to ranch work, some cowboys work for
+or participate in rodeos. Cowgirls, first defined as such in the late 19th
+century, had a less-well documented historical role, but in the modern world
+have established the ability to work at virtually identical tasks and obtained
+considerable respect for their achievements. There are also cattle handlers
+in many other parts of the world, particularly South America and Australia,
+who perform work similar to the cowboy in their respective nations.\n">>,
+	{ok, Req2} = cowboy_req:reply(200, [], BigBody, Req),
+	{ok, Req2, State}.
+
+terminate(_Req, _State) ->
+	ok.
-- 
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