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Rich DiCroce fa7e69bf30 Allow a limit to be set on the decompressed buffer size for ZlibDecoders (#9924)
Motivation:
It is impossible to know in advance how much memory will be needed to
decompress a stream of bytes that was compressed using the DEFLATE
algorithm. In theory, up to 1032 times the compressed size could be
needed. For untrusted input, an attacker could exploit this to exhaust
the memory pool.

Modifications:
ZlibDecoder and its subclasses now support an optional limit on the size
of the decompressed buffer. By default, if the limit is reached,
decompression stops and a DecompressionException is thrown. Behavior
upon reaching the limit is modifiable by subclasses in case they desire
something else.

Result:
The decompressed buffer can now be limited to a configurable size, thus
mitigating the possibility of memory pool exhaustion.
2020-01-31 12:17:45 +01:00
.github Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
.mvn Use latest maven release (#9820) 2019-11-27 14:45:48 +01:00
all Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:03:40 +01:00
bom Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
buffer Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
codec Allow a limit to be set on the decompressed buffer size for ZlibDecoders (#9924) 2020-01-31 12:17:45 +01:00
codec-dns Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-haproxy Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-http Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
codec-http2 Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
codec-memcache Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-mqtt Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-redis Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-smtp Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-socks Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-stomp Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
codec-xml Remove the intermediate List from ByteToMessageDecoder (and sub-class… (#8626) 2019-12-16 21:00:32 +01:00
common fix bug: scheduled tasks may not be executed (#9980) 2020-01-31 11:10:21 +01:00
dev-tools Update version number to start working on Netty 5 2018-11-20 15:49:57 +01:00
docker Update to java8-242 (#9978) 2020-01-29 14:56:34 +01:00
example Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
handler SSL / BlockHound works out of the box with the default SSL provider (#9969) 2020-01-30 11:50:15 +01:00
handler-proxy Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
license Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:03:40 +01:00
microbench Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
resolver Remove @UnstableApi annotation from resolver-* (#9952) 2020-01-15 09:18:02 +01:00
resolver-dns Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
resolver-dns-native-macos Remove @UnstableApi annotation from resolver-* (#9952) 2020-01-15 09:18:02 +01:00
tarball Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:03:40 +01:00
testsuite Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
testsuite-autobahn Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
testsuite-http2 Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
testsuite-native-image Rename SimpleChannelInboundHandler.channelRead0() to messageReceived() (#8819) 2019-11-01 07:23:07 +01:00
testsuite-osgi Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
testsuite-shading Allow to build on powerpc 2019-09-13 22:21:36 +02:00
transport Use lambdas whenever possible (#9979) 2020-01-30 09:28:24 +01:00
transport-blockhound-tests SSL / BlockHound works out of the box with the default SSL provider (#9969) 2020-01-30 11:50:15 +01:00
transport-native-epoll Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
transport-native-kqueue Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
transport-native-unix-common Fix the transport-native-unix-common build on FreeBSD (#9814) 2019-11-27 06:52:58 +01:00
transport-native-unix-common-tests Rename SimpleChannelInboundHandler.channelRead0() to messageReceived() (#8819) 2019-11-01 07:23:07 +01:00
transport-sctp Cleanup usage of Channel*Handler (#9959) 2020-01-20 17:47:17 -08:00
.fbprefs Updated Find Bugs configuration 2009-03-04 10:33:09 +00:00
.gitattributes Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
.gitignore Add vscode specific files / directory to .gitignore (#9652) 2019-10-10 07:35:34 +02:00
.lgtm.yml Enables lgtm.com to process this project and create a CodeQL database 2020-01-20 19:22:49 +01:00
CONTRIBUTING.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
LICENSE.txt Relicensed to Apache License v2 2009-08-28 07:15:49 +00:00
mvnw Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
mvnw.cmd Include mvn wrapper to make setup of development env easier 2018-01-26 08:13:17 +01:00
NOTICE.txt Introduce MacOSDnsServerAddressStreamProvider which correctly detect all nameserver configuration on MacOS (#9161) 2019-10-28 15:03:40 +01:00
pom.xml Use JCTools 3.0 + do not break on shaded jars API changes (should not be used by downstream) (#9920) 2020-01-15 14:26:50 +01:00
README.md Change the netty.io homepage scheme(http -> https) (#9344) 2019-07-09 21:10:14 +02:00
run-example.sh Drop SPDY support (#8845) 2019-02-07 09:25:31 +01:00

Netty Project

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients.

How to build

For the detailed information about building and developing Netty, please visit the developer guide. This page only gives very basic information.

You require the following to build Netty:

Note that this is build-time requirement. JDK 5 (for 3.x) or 6 (for 4.0+) is enough to run your Netty-based application.

Branches to look

Development of all versions takes place in each branch whose name is identical to <majorVersion>.<minorVersion>. For example, the development of 3.9 and 4.0 resides in the branch '3.9' and the branch '4.0' respectively.

Usage with JDK 9

Netty can be used in modular JDK9 applications as a collection of automatic modules. The module names follow the reverse-DNS style, and are derived from subproject names rather than root packages due to historical reasons. They are listed below:

  • io.netty.all
  • io.netty.buffer
  • io.netty.codec
  • io.netty.codec.dns
  • io.netty.codec.haproxy
  • io.netty.codec.http
  • io.netty.codec.http2
  • io.netty.codec.memcache
  • io.netty.codec.mqtt
  • io.netty.codec.redis
  • io.netty.codec.smtp
  • io.netty.codec.socks
  • io.netty.codec.stomp
  • io.netty.codec.xml
  • io.netty.common
  • io.netty.handler
  • io.netty.handler.proxy
  • io.netty.resolver
  • io.netty.resolver.dns
  • io.netty.transport
  • io.netty.transport.epoll (native omitted - reserved keyword in Java)
  • io.netty.transport.kqueue (native omitted - reserved keyword in Java)
  • io.netty.transport.unix.common (native omitted - reserved keyword in Java)
  • io.netty.transport.rxtx
  • io.netty.transport.sctp
  • io.netty.transport.udt

Automatic modules do not provide any means to declare dependencies, so you need to list each used module separately in your module-info file.