| -- 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 |