-- Licensed to the Apache Software Foundation (ASF) under one

-- or more contributor license agreements. See the NOTICE file

-- distributed with this work for additional information

-- regarding copyright ownership. The ASF licenses this file

-- to you under the Apache License, Version 2.0 (the

-- "License"); you may not use this file except in compliance

-- with the License. You may obtain a copy of the License at

--

-- http://www.apache.org/licenses/LICENSE-2.0

--

-- Unless required by applicable law or agreed to in writing, software

-- distributed under the License is distributed on an "AS IS" BASIS,

-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-- See the License for the specific language governing permissions and

-- limitations under the License.

-- This example depends on "lua-zlib".

-- It uncompresses a gzipped content body and prints it out in debug log.

-- It can be added in remap.config for a remap rule with the lua plugin.

-- Setup Instructions

-- 1) install lua-zlib - v1.2

ts.add_package_cpath("/usr/lib/lua/5.1/?.so")

local zlib = require "zlib"

function upper_transform(data, eos)

ts.ctx["text"] = ts.ctx["text"] .. data

if eos == 1 then

local stream = zlib.inflate()

local inflated, eof, bytes_in, bytes_out = stream(ts.ctx["text"])

if (eof == true) then

ts.debug("==== eof ====")

end

ts.debug("==== bytes_in: " .. (bytes_in or ""))

ts.debug("==== bytes_out:" .. (bytes_out or ""))

ts.debug("==== uncompressed data begin ===")

ts.debug(inflated or "no data")

ts.debug("==== uncompressed data end ===")

end

return string.upper(data), eos

end

function do_remap()

ts.hook(TS_LUA_RESPONSE_TRANSFORM, upper_transform)

ts.ctx["text"] = ""

return 0

end