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Undo all that encryption faff - NioBuffers arent for the job.
This commit is contained in:
md_5
parent
8ef8327c62
commit
a5cd0b0255
2 changed files with 42 additions and 31 deletions
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@ -1,4 +1,4 @@
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From 4f645adb9e1b754aca5511bb1960a4205e6982c4 Mon Sep 17 00:00:00 2001
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From a6b6583baf41c2a3043bae060eca88e7f6faf22d Mon Sep 17 00:00:00 2001
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From: md_5 <md_5@live.com.au>
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Date: Thu, 14 Feb 2013 17:32:20 +1100
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Subject: [PATCH] Netty
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@ -40,7 +40,7 @@ Subject: [PATCH] Netty
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.../net/minecraft/server/ThreadCommandReader.java | 1 +
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.../net/minecraft/server/ThreadLoginVerifier.java | 1 +
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.../craftbukkit/scheduler/CraftScheduler.java | 2 +-
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src/main/java/org/spigotmc/netty/CipherCodec.java | 50 +++++
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src/main/java/org/spigotmc/netty/CipherCodec.java | 67 ++++++
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.../org/spigotmc/netty/NettyNetworkManager.java | 229 +++++++++++++++++++
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.../org/spigotmc/netty/NettyServerConnection.java | 110 +++++++++
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.../org/spigotmc/netty/NettySocketAdaptor.java | 248 +++++++++++++++++++++
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@ -48,7 +48,7 @@ Subject: [PATCH] Netty
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.../java/org/spigotmc/netty/PacketEncoder.java | 43 ++++
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.../java/org/spigotmc/netty/PacketListener.java | 100 +++++++++
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src/main/java/org/spigotmc/netty/ReadState.java | 16 ++
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17 files changed, 907 insertions(+), 8 deletions(-)
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17 files changed, 924 insertions(+), 8 deletions(-)
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create mode 100644 src/main/java/net/minecraft/server/INetworkManager.java
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create mode 100644 src/main/java/org/spigotmc/netty/CipherCodec.java
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create mode 100644 src/main/java/org/spigotmc/netty/NettyNetworkManager.java
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@ -60,7 +60,7 @@ Subject: [PATCH] Netty
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create mode 100644 src/main/java/org/spigotmc/netty/ReadState.java
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diff --git a/pom.xml b/pom.xml
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index a92e73d..83917bb 100644
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index f17bd19..8efab09 100644
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--- a/pom.xml
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+++ b/pom.xml
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@@ -132,6 +132,11 @@
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@ -70,13 +70,13 @@ index a92e73d..83917bb 100644
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+ <dependency>
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+ <groupId>io.netty</groupId>
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+ <artifactId>netty-all</artifactId>
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+ <version>4.0.0.Beta3-SNAPSHOT</version>
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+ <version>4.0.0.Beta2</version>
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+ </dependency>
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</dependencies>
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<!-- This builds a completely 'ready to start' jar with all dependencies inside -->
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diff --git a/src/main/java/net/minecraft/server/DedicatedServer.java b/src/main/java/net/minecraft/server/DedicatedServer.java
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index bd0377a..aefe20f 100644
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index bd0377a..73cb5b1 100644
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--- a/src/main/java/net/minecraft/server/DedicatedServer.java
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+++ b/src/main/java/net/minecraft/server/DedicatedServer.java
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@@ -32,7 +32,7 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
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@ -235,10 +235,10 @@ index 0a5c61a..35badf3 100644
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private static final int RECENT_TICKS;
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diff --git a/src/main/java/org/spigotmc/netty/CipherCodec.java b/src/main/java/org/spigotmc/netty/CipherCodec.java
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new file mode 100644
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index 0000000..cb1a5c8
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index 0000000..15e3466
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/netty/CipherCodec.java
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@@ -0,0 +1,50 @@
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@@ -0,0 +1,67 @@
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+package org.spigotmc.netty;
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+
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+import io.netty.buffer.ByteBuf;
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@ -246,16 +246,18 @@ index 0000000..cb1a5c8
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+import io.netty.handler.codec.ByteToByteCodec;
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+import javax.crypto.Cipher;
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+import javax.crypto.ShortBufferException;
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+import org.bouncycastle.crypto.BufferedBlockCipher;
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+
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+/**
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+ * This class is a complete solution for encrypting and decoding bytes in a
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+ * Netty stream. It takes two {@link Cipher} instances, used for encryption and
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+ * decryption respectively.
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+ * Netty stream. It takes two {@link BufferedBlockCipher} instances, used for
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+ * encryption and decryption respectively.
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+ */
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+public class CipherCodec extends ByteToByteCodec {
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+
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+ private Cipher encrypt;
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+ private Cipher decrypt;
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+ private ByteBuf heapOut;
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+
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+ public CipherCodec(Cipher encrypt, Cipher decrypt) {
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+ this.encrypt = encrypt;
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@ -264,7 +266,12 @@ index 0000000..cb1a5c8
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+
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+ @Override
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+ public void encode(ChannelHandlerContext ctx, ByteBuf in, ByteBuf out) throws Exception {
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+ cipher(encrypt, in, out);
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+ if (heapOut == null) {
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+ heapOut = ctx.alloc().heapBuffer();
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+ }
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+ cipher(encrypt, in, heapOut);
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+ out.writeBytes(heapOut);
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+ heapOut.discardSomeReadBytes();
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+ }
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+
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+ @Override
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@ -272,21 +279,31 @@ index 0000000..cb1a5c8
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+ cipher(decrypt, in, out);
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+ }
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+
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+ private void cipher(Cipher cipher, ByteBuf in, ByteBuf out) throws Exception {
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+ try {
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+ int available = in.readableBytes();
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+ int outputSize = cipher.getOutputSize(available);
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+ int writerIndex = out.writerIndex();
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+ if (out.capacity() + writerIndex < outputSize) {
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+ out.capacity(outputSize + writerIndex);
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+ }
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+ int processed = cipher.update(in.nioBuffer(), out.nioBuffer(out.writerIndex(), outputSize));
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+ in.readerIndex(in.readerIndex() + processed);
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+ out.writerIndex(writerIndex + processed);
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+ } catch (Exception ex) {
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+ ex.printStackTrace();
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+ throw ex;
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+ @Override
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+ public void freeInboundBuffer(ChannelHandlerContext ctx) throws Exception {
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+ super.freeInboundBuffer(ctx);
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+ decrypt = null;
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+ }
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+
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+ @Override
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+ public void freeOutboundBuffer(ChannelHandlerContext ctx) throws Exception {
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+ super.freeOutboundBuffer(ctx);
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+ if (heapOut != null) {
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+ heapOut.release();
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+ heapOut = null;
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+ }
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+ encrypt = null;
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+ }
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+
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+ private void cipher(Cipher cipher, ByteBuf in, ByteBuf out) throws ShortBufferException {
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+ int available = in.readableBytes();
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+ int outputSize = cipher.getOutputSize(available);
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+ if (out.capacity() < outputSize) {
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+ out.capacity(outputSize);
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+ }
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+ int processed = cipher.update(in.array(), in.arrayOffset() + in.readerIndex(), available, out.array(), out.arrayOffset() + out.writerIndex());
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+ in.readerIndex(in.readerIndex() + processed);
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+ out.writerIndex(out.writerIndex() + processed);
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+ }
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+}
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diff --git a/src/main/java/org/spigotmc/netty/NettyNetworkManager.java b/src/main/java/org/spigotmc/netty/NettyNetworkManager.java
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6
pom.xml
6
pom.xml
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@ -3,12 +3,6 @@
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.sonatype.oss</groupId>
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<artifactId>oss-parent</artifactId>
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<version>7</version>
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</parent>
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<groupId>org.spigotmc</groupId>
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<artifactId>spigot-parent</artifactId>
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<version>dev-SNAPSHOT</version>
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