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Merge branch 'decode-multiple' into dev/1.1.0

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Dieser Commit ist enthalten in:
Andrew Steinborn 2020-06-21 13:39:24 -04:00
Commit ab9115178b
37 geänderte Dateien mit 462 neuen und 587 gelöschten Zeilen
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2
.gitignore vendored
Datei anzeigen

@ -89,3 +89,5 @@ plugins/
### Natives stuff ###
native/mbedtls
native/zlib-ng
native/zlib-cf
native/libdeflate

23
native/compile-linux.sh
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@ -1,21 +1,22 @@
#!/bin/bash
if [ ! -d zlib-ng ]; then
echo "Cloning zlib-ng..."
git clone https://github.com/zlib-ng/zlib-ng.git
if [ ! -d libdeflate ]; then
echo "Cloning libdeflate..."
git clone https://github.com/ebiggers/libdeflate.git
fi
echo "Compiling zlib-ng..."
cd zlib-ng
CFLAGS="-fPIC -O3" ./configure --zlib-compat --static
make clean && make
echo "Compiling libdeflate..."
cd libdeflate || exit
make
cd ..
# Modify as you need.
MBEDTLS_ROOT=mbedtls
CFLAGS="-O3 -I$JAVA_HOME/include/ -I$JAVA_HOME/include/linux/ -fPIC -shared"
gcc $CFLAGS -Izlib-ng src/main/c/jni_util.c src/main/c/jni_zlib_deflate.c src/main/c/jni_zlib_inflate.c \
src/main/c/jni_zlib_common.c zlib-ng/libz.a -o src/main/resources/linux_x64/velocity-compress.so
CFLAGS="-O3 -I$JAVA_HOME/include/ -I$JAVA_HOME/include/linux/ -fPIC -shared -Wl,-z,noexecstack"
ARCH=$(uname -m)
mkdir -p src/main/resources/linux_$ARCH
gcc $CFLAGS -Ilibdeflate src/main/c/jni_util.c src/main/c/jni_zlib_deflate.c src/main/c/jni_zlib_inflate.c \
libdeflate/libdeflate.a -o src/main/resources/linux_$ARCH/velocity-compress.so
gcc $CFLAGS -I $MBEDTLS_ROOT/include -shared $MBEDTLS_ROOT/library/aes.c $MBEDTLS_ROOT/library/aesni.c \
$MBEDTLS_ROOT/library/platform.c $MBEDTLS_ROOT/library/platform_util.c src/main/c/jni_util.c src/main/c/jni_cipher.c \
-o src/main/resources/linux_x64/velocity-cipher.so
-o src/main/resources/linux_$ARCH/velocity-cipher.so

23
native/compile-osx.sh
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@ -1,23 +0,0 @@
#!/bin/bash
if [ ! -d zlib-ng ]; then
echo "Cloning zlib-ng..."
git clone https://github.com/zlib-ng/zlib-ng.git
fi
echo "Compiling zlib-ng..."
cd zlib-ng
CFLAGS="-fPIC -O3" ./configure --zlib-compat --static
make clean && make
cd ..
# Modify as you need.
MBEDTLS_ROOT=mbedtls
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
CFLAGS="-O3 -I$JAVA_HOME/include/ -I$JAVA_HOME/include/darwin/ -fPIC -shared"
clang $CFLAGS -Izlib-ng src/main/c/jni_util.c src/main/c/jni_zlib_deflate.c src/main/c/jni_zlib_inflate.c \
src/main/c/jni_zlib_common.c zlib-ng/libz.a -o src/main/resources/macosx/velocity-compress.dylib
clang $CFLAGS -I $MBEDTLS_ROOT/include -shared $MBEDTLS_ROOT/library/aes.c $MBEDTLS_ROOT/library/aesni.c \
$MBEDTLS_ROOT/library/platform.c $MBEDTLS_ROOT/library/platform_util.c src/main/c/jni_util.c src/main/c/jni_cipher.c \
-o src/main/resources/macosx/velocity-cipher.dylib

29
native/src/main/c/jni_zlib_common.c
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@ -1,29 +0,0 @@
#include <jni.h>
#include <stdbool.h>
#include <stdlib.h>
#include <zlib.h>
#include "jni_util.h"
void JNICALL
check_zlib_free(JNIEnv *env, z_stream *stream, bool deflate)
{
int ret = deflate ? deflateEnd(stream) : inflateEnd(stream);
const char *msg = stream->msg;
free((void*) stream);
switch (ret) {
case Z_OK:
break;
case Z_STREAM_ERROR:
if (msg == NULL) {
msg = "stream state inconsistent";
}
// fall-through
case Z_DATA_ERROR:
if (msg == NULL) {
msg = "data was discarded";
}
throwException(env, "java/lang/IllegalArgumentException", msg);
break;
}
}

6
native/src/main/c/jni_zlib_common.h
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@ -1,6 +0,0 @@
#include <jni.h>
#include <stdbool.h>
#include <zlib.h>
void JNICALL
check_zlib_free(JNIEnv *env, z_stream *stream, bool deflate);

88
native/src/main/c/jni_zlib_deflate.c
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@ -2,56 +2,21 @@
#include <jni.h>
#include <stdbool.h>
#include <stdlib.h>
#include <zlib.h>
#include <libdeflate.h>
#include "jni_util.h"
#include "jni_zlib_common.h"
static jfieldID finishedID;
static jfieldID consumedID;
JNIEXPORT void JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibDeflate_initIDs(JNIEnv *env, jclass cls)
{
finishedID = (*env)->GetFieldID(env, cls, "finished", "Z");
consumedID = (*env)->GetFieldID(env, cls, "consumed", "I");
}
JNIEXPORT jlong JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibDeflate_init(JNIEnv *env,
jobject obj,
jint level)
{
z_stream* stream = calloc(1, sizeof(z_stream));
if (stream == 0) {
struct libdeflate_compressor *compressor = libdeflate_alloc_compressor(level);
if (compressor == NULL) {
// Out of memory!
throwException(env, "java/lang/OutOfMemoryError", "zlib allocate stream");
return 0;
}
int ret = deflateInit(stream, level);
if (ret == Z_OK) {
return (jlong) stream;
} else {
const char *zlib_msg = stream->msg;
free(stream);
switch (ret) {
case Z_MEM_ERROR:
throwException(env, "java/lang/OutOfMemoryError", "zlib init");
break;
case Z_STREAM_ERROR: {
// Thanks Ken and Ritchie!
char message[32];
snprintf(message, 32, "invalid level %d", level);
throwException(env, "java/lang/IllegalArgumentException", message);
break;
}
default:
throwException(env, "java/util/zip/DataFormatException", zlib_msg);
break;
}
throwException(env, "java/lang/OutOfMemoryError", "libdeflate allocate compressor");
return 0;
}
return (jlong) compressor;
}
JNIEXPORT void JNICALL
@ -59,11 +24,10 @@ Java_com_velocitypowered_natives_compression_NativeZlibDeflate_free(JNIEnv *env,
jobject obj,
jlong ctx)
{
z_stream* stream = (z_stream*) ctx;
check_zlib_free(env, stream, true);
libdeflate_free_compressor((struct libdeflate_compressor *) ctx);
}
JNIEXPORT int JNICALL
JNIEXPORT jboolean JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibDeflate_process(JNIEnv *env,
jobject obj,
jlong ctx,
@ -73,38 +37,8 @@ Java_com_velocitypowered_natives_compression_NativeZlibDeflate_process(JNIEnv *e
jint destinationLength,
jboolean finish)
{
z_stream* stream = (z_stream*) ctx;
stream->next_in = (Bytef *) sourceAddress;
stream->next_out = (Bytef *) destinationAddress;
stream->avail_in = sourceLength;
stream->avail_out = destinationLength;
int res = deflate(stream, finish ? Z_FINISH : Z_NO_FLUSH);
switch (res) {
case Z_STREAM_END:
// The stream has ended.
(*env)->SetBooleanField(env, obj, finishedID, JNI_TRUE);
// fall-through
case Z_OK:
// Not yet completed, but progress has been made. Tell Java how many bytes we've processed.
(*env)->SetIntField(env, obj, consumedID, sourceLength - stream->avail_in);
return destinationLength - stream->avail_out;
case Z_BUF_ERROR:
// This is not fatal. Just say we need more data. Usually this applies to the next_out buffer,
// which NativeVelocityCompressor will notice and will expand the buffer.
return 0;
default:
throwException(env, "java/util/zip/DataFormatException", stream->msg);
return 0;
}
}
JNIEXPORT void JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibDeflate_reset(JNIEnv *env,
jobject obj,
jlong ctx)
{
z_stream* stream = (z_stream*) ctx;
int ret = deflateReset(stream);
assert(ret == Z_OK);
struct libdeflate_compressor *compressor = (struct libdeflate_compressor *) ctx;
size_t produced = libdeflate_zlib_compress(compressor, (void *) sourceAddress, sourceLength,
(void *) destinationAddress, destinationLength);
return (jlong) produced;
}

94
native/src/main/c/jni_zlib_inflate.c
Datei anzeigen

@ -2,50 +2,21 @@
#include <jni.h>
#include <stdbool.h>
#include <stdlib.h>
#include <zlib.h>
#include <libdeflate.h>
#include "jni_util.h"
#include "jni_zlib_common.h"
static jfieldID finishedID;
static jfieldID consumedID;
JNIEXPORT void JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibInflate_initIDs(JNIEnv *env, jclass cls)
{
finishedID = (*env)->GetFieldID(env, cls, "finished", "Z");
consumedID = (*env)->GetFieldID(env, cls, "consumed", "I");
}
JNIEXPORT jlong JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibInflate_init(JNIEnv *env,
jobject obj)
{
z_stream* stream = calloc(1, sizeof(z_stream));
if (stream == 0) {
struct libdeflate_decompressor *decompress = libdeflate_alloc_decompressor();
if (decompress == NULL) {
// Out of memory!
throwException(env, "java/lang/OutOfMemoryError", "zlib allocate stream");
throwException(env, "java/lang/OutOfMemoryError", "libdeflate allocate decompressor");
return 0;
}
int ret = inflateInit(stream);
if (ret == Z_OK) {
return (jlong) stream;
} else {
const char *zlib_msg = stream->msg;
free(stream);
switch (ret) {
case Z_MEM_ERROR:
throwException(env, "java/lang/OutOfMemoryError", "zlib init");
return 0;
case Z_STREAM_ERROR:
throwException(env, "java/lang/IllegalArgumentException", "stream clobbered?");
return 0;
default:
throwException(env, "java/util/zip/DataFormatException", zlib_msg);
return 0;
}
}
return (jlong) decompress;
}
JNIEXPORT void JNICALL
@ -53,51 +24,34 @@ Java_com_velocitypowered_natives_compression_NativeZlibInflate_free(JNIEnv *env,
jobject obj,
jlong ctx)
{
z_stream* stream = (z_stream*) ctx;
check_zlib_free(env, stream, false);
libdeflate_free_decompressor((struct libdeflate_decompressor *) ctx);
}
JNIEXPORT int JNICALL
JNIEXPORT jboolean JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibInflate_process(JNIEnv *env,
jobject obj,
jlong ctx,
jlong sourceAddress,
jint sourceLength,
jlong destinationAddress,
jint destinationLength)
jint destinationLength,
jlong maximumSize)
{
z_stream* stream = (z_stream*) ctx;
stream->next_in = (Bytef *) sourceAddress;
stream->next_out = (Bytef *) destinationAddress;
stream->avail_in = sourceLength;
stream->avail_out = destinationLength;
struct libdeflate_decompressor *decompress = (struct libdeflate_decompressor *) ctx;
enum libdeflate_result result = libdeflate_zlib_decompress(decompress, (void *) sourceAddress,
sourceLength, (void *) destinationAddress, destinationLength, NULL);
int res = inflate(stream, Z_PARTIAL_FLUSH);
switch (res) {
case Z_STREAM_END:
// The stream has ended
(*env)->SetBooleanField(env, obj, finishedID, JNI_TRUE);
// fall-through
case Z_OK:
// Not yet completed, but progress has been made. Tell Java how many bytes we've processed.
(*env)->SetIntField(env, obj, consumedID, sourceLength - stream->avail_in);
return destinationLength - stream->avail_out;
case Z_BUF_ERROR:
// This is not fatal. Just say we need more data. Usually this applies to the next_out buffer,
// which NativeVelocityCompressor will notice and will expand the buffer.
return 0;
default:
throwException(env, "java/util/zip/DataFormatException", stream->msg);
return 0;
switch (result) {
case LIBDEFLATE_SUCCESS:
// We are happy
return JNI_TRUE;
case LIBDEFLATE_BAD_DATA:
throwException(env, "java/util/zip/DataFormatException", "inflate data is bad");
return JNI_FALSE;
case LIBDEFLATE_SHORT_OUTPUT:
case LIBDEFLATE_INSUFFICIENT_SPACE:
// These cases are the same for us. We expect the full uncompressed size to be known.
throwException(env, "java/util/zip/DataFormatException", "uncompressed size is inaccurate");
return JNI_FALSE;
}
}
JNIEXPORT void JNICALL
Java_com_velocitypowered_natives_compression_NativeZlibInflate_reset(JNIEnv *env,
jobject obj,
jlong ctx)
{
z_stream* stream = (z_stream*) ctx;
int ret = inflateReset(stream);
assert(ret == Z_OK);
}

5
native/src/main/java/com/velocitypowered/natives/compression/Java11VelocityCompressor.java
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@ -54,7 +54,8 @@ public class Java11VelocityCompressor implements VelocityCompressor {
}
@Override
public void inflate(ByteBuf source, ByteBuf destination, int max) throws DataFormatException {
public void inflate(ByteBuf source, ByteBuf destination, int uncompressedSize)
throws DataFormatException {
ensureNotDisposed();
// We (probably) can't nicely deal with >=1 buffer nicely, so let's scream loudly.
@ -67,7 +68,7 @@ public class Java11VelocityCompressor implements VelocityCompressor {
while (!inflater.finished() && inflater.getBytesRead() < source.readableBytes()) {
if (!destination.isWritable()) {
ensureMaxSize(destination, max);
ensureMaxSize(destination, uncompressedSize);
destination.ensureWritable(ZLIB_BUFFER_SIZE);
}

7
native/src/main/java/com/velocitypowered/natives/compression/JavaVelocityCompressor.java
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@ -25,20 +25,21 @@ public class JavaVelocityCompressor implements VelocityCompressor {
}
@Override
public void inflate(ByteBuf source, ByteBuf destination, int max) throws DataFormatException {
public void inflate(ByteBuf source, ByteBuf destination, int uncompressedSize)
throws DataFormatException {
ensureNotDisposed();
final int available = source.readableBytes();
this.setInflaterInput(source);
if (destination.hasArray()) {
this.inflateDestinationIsHeap(destination, available, max);
this.inflateDestinationIsHeap(destination, available, uncompressedSize);
} else {
if (buf.length == 0) {
buf = new byte[ZLIB_BUFFER_SIZE];
}
while (!inflater.finished() && inflater.getBytesRead() < available) {
ensureMaxSize(destination, max);
ensureMaxSize(destination, uncompressedSize);
int read = inflater.inflate(buf);
destination.writeBytes(buf, 0, read);
}

87
native/src/main/java/com/velocitypowered/natives/compression/LibdeflateVelocityCompressor.java Normale Datei
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@ -0,0 +1,87 @@
package com.velocitypowered.natives.compression;
import com.google.common.base.Preconditions;
import com.velocitypowered.natives.util.BufferPreference;
import io.netty.buffer.ByteBuf;
import java.util.zip.DataFormatException;
public class LibdeflateVelocityCompressor implements VelocityCompressor {
public static final VelocityCompressorFactory FACTORY = LibdeflateVelocityCompressor::new;
private final NativeZlibInflate inflate = new NativeZlibInflate();
private final long inflateCtx;
private final NativeZlibDeflate deflate = new NativeZlibDeflate();
private final long deflateCtx;
private boolean disposed = false;
private LibdeflateVelocityCompressor(int level) {
int correctedLevel = level == -1 ? 6 : level;
if (correctedLevel > 12 || correctedLevel < 1) {
throw new IllegalArgumentException("Invalid compression level " + level);
}
this.inflateCtx = inflate.init();
this.deflateCtx = deflate.init(level == -1 ? 6 : level);
}
@Override
public void inflate(ByteBuf source, ByteBuf destination, int uncompressedSize)
throws DataFormatException {
ensureNotDisposed();
source.memoryAddress();
destination.memoryAddress();
// libdeflate recommends we work with a known uncompressed size - so we work strictly within
// those parameters. If the uncompressed size doesn't match the compressed size, then we will
// throw an exception from native code.
destination.ensureWritable(uncompressedSize);
long sourceAddress = source.memoryAddress() + source.readerIndex();
long destinationAddress = destination.memoryAddress() + destination.writerIndex();
inflate.process(inflateCtx, sourceAddress, source.readableBytes(), destinationAddress,
uncompressedSize);
destination.writerIndex(destination.writerIndex() + uncompressedSize);
}
@Override
public void deflate(ByteBuf source, ByteBuf destination) throws DataFormatException {
ensureNotDisposed();
source.memoryAddress();
destination.memoryAddress();
while (true) {
long sourceAddress = source.memoryAddress() + source.readerIndex();
long destinationAddress = destination.memoryAddress() + destination.writerIndex();
int produced = deflate.process(deflateCtx, sourceAddress, source.readableBytes(),
destinationAddress, destination.writableBytes());
if (produced > 0) {
destination.writerIndex(destination.writerIndex() + produced);
return;
}
// Insufficient room - enlarge the buffer.
destination.capacity(destination.capacity() * 2);
}
}
private void ensureNotDisposed() {
Preconditions.checkState(!disposed, "Object already disposed");
}
@Override
public void dispose() {
if (!disposed) {
inflate.free(inflateCtx);
deflate.free(deflateCtx);
}
disposed = true;
}
@Override
public BufferPreference preferredBufferType() {
return BufferPreference.DIRECT_REQUIRED;
}
}

89
native/src/main/java/com/velocitypowered/natives/compression/NativeVelocityCompressor.java
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@ -1,89 +0,0 @@
package com.velocitypowered.natives.compression;
import static com.velocitypowered.natives.compression.CompressorUtils.ZLIB_BUFFER_SIZE;
import static com.velocitypowered.natives.compression.CompressorUtils.ensureMaxSize;
import com.google.common.base.Preconditions;
import com.velocitypowered.natives.util.BufferPreference;
import io.netty.buffer.ByteBuf;
import java.util.zip.DataFormatException;
public class NativeVelocityCompressor implements VelocityCompressor {
public static final VelocityCompressorFactory FACTORY = NativeVelocityCompressor::new;
private final NativeZlibInflate inflate = new NativeZlibInflate();
private final long inflateCtx;
private final NativeZlibDeflate deflate = new NativeZlibDeflate();
private final long deflateCtx;
private boolean disposed = false;
private NativeVelocityCompressor(int level) {
this.inflateCtx = inflate.init();
this.deflateCtx = deflate.init(level);
}
@Override
public void inflate(ByteBuf source, ByteBuf destination, int max) throws DataFormatException {
ensureNotDisposed();
source.memoryAddress();
destination.memoryAddress();
while (!inflate.finished && source.isReadable()) {
if (!destination.isWritable()) {
ensureMaxSize(destination, max);
destination.ensureWritable(ZLIB_BUFFER_SIZE);
}
int produced = inflate.process(inflateCtx, source.memoryAddress() + source.readerIndex(),
source.readableBytes(), destination.memoryAddress() + destination.writerIndex(),
destination.writableBytes());
source.readerIndex(source.readerIndex() + inflate.consumed);
destination.writerIndex(destination.writerIndex() + produced);
}
inflate.reset(inflateCtx);
inflate.consumed = 0;
inflate.finished = false;
}
@Override
public void deflate(ByteBuf source, ByteBuf destination) throws DataFormatException {
ensureNotDisposed();
source.memoryAddress();
destination.memoryAddress();
while (!deflate.finished) {
if (!destination.isWritable()) {
destination.ensureWritable(ZLIB_BUFFER_SIZE);
}
int produced = deflate.process(deflateCtx, source.memoryAddress() + source.readerIndex(),
source.readableBytes(),
destination.memoryAddress() + destination.writerIndex(), destination.writableBytes(),
true);
source.readerIndex(source.readerIndex() + deflate.consumed);
destination.writerIndex(destination.writerIndex() + produced);
}
deflate.reset(deflateCtx);
deflate.consumed = 0;
deflate.finished = false;
}
private void ensureNotDisposed() {
Preconditions.checkState(!disposed, "Object already disposed");
}
@Override
public void dispose() {
if (!disposed) {
inflate.free(inflateCtx);
deflate.free(deflateCtx);
}
disposed = true;
}
@Override
public BufferPreference preferredBufferType() {
return BufferPreference.DIRECT_REQUIRED;
}
}

13
native/src/main/java/com/velocitypowered/natives/compression/NativeZlibDeflate.java
Datei anzeigen

@ -5,21 +5,10 @@ package com.velocitypowered.natives.compression;
*/
class NativeZlibDeflate {
boolean finished;
int consumed;
native long init(int level);
native long free(long ctx);
native int process(long ctx, long sourceAddress, int sourceLength, long destinationAddress,
int destinationLength, boolean finish);
native void reset(long ctx);
static {
initIDs();
}
private static native void initIDs();
int destinationLength);
}

17
native/src/main/java/com/velocitypowered/natives/compression/NativeZlibInflate.java
Datei anzeigen

@ -1,25 +1,16 @@
package com.velocitypowered.natives.compression;
import java.util.zip.DataFormatException;
/**
* Represents a native interface for zlib's inflate functions.
*/
class NativeZlibInflate {
boolean finished;
int consumed;
native long init();
native long free(long ctx);
native int process(long ctx, long sourceAddress, int sourceLength, long destinationAddress,
int destinationLength);
native void reset(long ctx);
static {
initIDs();
}
private static native void initIDs();
native boolean process(long ctx, long sourceAddress, int sourceLength, long destinationAddress,
int destinationLength) throws DataFormatException;
}

6
native/src/main/java/com/velocitypowered/natives/compression/VelocityCompressor.java
Datei anzeigen

@ -6,10 +6,12 @@ import io.netty.buffer.ByteBuf;
import java.util.zip.DataFormatException;
/**
* Provides an interface to inflate and deflate {@link ByteBuf}s using zlib.
* Provides an interface to inflate and deflate {@link ByteBuf}s using zlib or a compatible
* implementation.
*/
public interface VelocityCompressor extends Disposable, Native {
void inflate(ByteBuf source, ByteBuf destination, int max) throws DataFormatException;
void inflate(ByteBuf source, ByteBuf destination, int uncompressedSize)
throws DataFormatException;
void deflate(ByteBuf source, ByteBuf destination) throws DataFormatException;
}

18
native/src/main/java/com/velocitypowered/natives/util/NativeConstraints.java
Datei anzeigen

@ -7,6 +7,7 @@ import java.util.function.BooleanSupplier;
public class NativeConstraints {
private static final boolean NATIVES_ENABLED = !Boolean.getBoolean("velocity.natives-disabled");
private static final boolean IS_AMD64;
private static final boolean IS_AARCH64;
private static final boolean CAN_GET_MEMORYADDRESS;
static {
@ -21,20 +22,21 @@ public class NativeConstraints {
// HotSpot on Intel macOS prefers x86_64, but OpenJ9 on macOS and HotSpot/OpenJ9 elsewhere
// give amd64.
IS_AMD64 = osArch.equals("amd64") || osArch.equals("x86_64");
IS_AARCH64 = osArch.equals("aarch64");
}
static final BooleanSupplier MACOS = () -> {
return NATIVES_ENABLED
&& CAN_GET_MEMORYADDRESS
&& System.getProperty("os.name", "").equalsIgnoreCase("Mac OS X")
static final BooleanSupplier NATIVE_BASE = () -> NATIVES_ENABLED && CAN_GET_MEMORYADDRESS;
static final BooleanSupplier LINUX_X86_64 = () -> {
return NATIVE_BASE.getAsBoolean()
&& System.getProperty("os.name", "").equalsIgnoreCase("Linux")
&& IS_AMD64;
};
static final BooleanSupplier LINUX = () -> {
return NATIVES_ENABLED
&& CAN_GET_MEMORYADDRESS
static final BooleanSupplier LINUX_AARCH64 = () -> {
return NATIVE_BASE.getAsBoolean()
&& System.getProperty("os.name", "").equalsIgnoreCase("Linux")
&& IS_AMD64;
&& IS_AARCH64;
};
static final BooleanSupplier JAVA_11 = () -> {

28
native/src/main/java/com/velocitypowered/natives/util/Natives.java
Datei anzeigen

@ -4,7 +4,7 @@ import com.google.common.collect.ImmutableList;
import com.velocitypowered.natives.NativeSetupException;
import com.velocitypowered.natives.compression.Java11VelocityCompressor;
import com.velocitypowered.natives.compression.JavaVelocityCompressor;
import com.velocitypowered.natives.compression.NativeVelocityCompressor;
import com.velocitypowered.natives.compression.LibdeflateVelocityCompressor;
import com.velocitypowered.natives.compression.VelocityCompressorFactory;
import com.velocitypowered.natives.encryption.JavaVelocityCipher;
import com.velocitypowered.natives.encryption.NativeVelocityCipher;
@ -62,12 +62,14 @@ public class Natives {
public static final NativeCodeLoader<VelocityCompressorFactory> compress = new NativeCodeLoader<>(
ImmutableList.of(
new NativeCodeLoader.Variant<>(NativeConstraints.MACOS,
copyAndLoadNative("/macosx/velocity-compress.dylib"), "native (macOS)",
NativeVelocityCompressor.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX,
copyAndLoadNative("/linux_x64/velocity-compress.so"), "native (Linux amd64)",
NativeVelocityCompressor.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX_X86_64,
copyAndLoadNative("/linux_x86_64/velocity-compress.so"),
"libdeflate (Linux x86_64)",
LibdeflateVelocityCompressor.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX_AARCH64,
copyAndLoadNative("/linux_aarch64/velocity-compress.so"),
"libdeflate (Linux aarch64)",
LibdeflateVelocityCompressor.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.JAVA_11, () -> {
}, "Java 11", () -> Java11VelocityCompressor.FACTORY),
new NativeCodeLoader.Variant<>(NativeCodeLoader.ALWAYS, () -> {
@ -77,12 +79,12 @@ public class Natives {
public static final NativeCodeLoader<VelocityCipherFactory> cipher = new NativeCodeLoader<>(
ImmutableList.of(
new NativeCodeLoader.Variant<>(NativeConstraints.MACOS,
copyAndLoadNative("/macosx/velocity-cipher.dylib"), "mbed TLS (macOS)",
NativeVelocityCipher.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX,
copyAndLoadNative("/linux_x64/velocity-cipher.so"), "mbed TLS (Linux amd64)",
NativeVelocityCipher.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX_X86_64,
copyAndLoadNative("/linux_x86_64/velocity-cipher.so"),
"mbed TLS (Linux x86_64)", NativeVelocityCipher.FACTORY),
new NativeCodeLoader.Variant<>(NativeConstraints.LINUX_AARCH64,
copyAndLoadNative("/linux_aarch64/velocity-cipher.so"),
"mbed TLS (Linux aarch64)", NativeVelocityCipher.FACTORY),
new NativeCodeLoader.Variant<>(NativeCodeLoader.ALWAYS, () -> {
}, "Java", JavaVelocityCipher.FACTORY)
)

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native/src/main/resources/linux_aarch64/velocity-compress.so Ausführbare Datei
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BIN
native/src/main/resources/linux_x64/velocity-compress.so
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native/src/main/resources/linux_x86_64/velocity-compress.so Ausführbare Datei
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native/src/main/resources/macosx/velocity-compress.dylib
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7
native/src/test/java/com/velocitypowered/natives/compression/VelocityCompressorTest.java
Datei anzeigen

@ -33,13 +33,13 @@ class VelocityCompressorTest {
}
@Test
@EnabledOnOs({MAC, LINUX})
@EnabledOnOs({LINUX})
void sanityCheckNative() {
assertThrows(IllegalArgumentException.class, () -> Natives.compress.get().create(-42));
}
@Test
@EnabledOnOs({MAC, LINUX})
@EnabledOnOs({LINUX})
void nativeIntegrityCheck() throws DataFormatException {
VelocityCompressor compressor = Natives.compress.get().create(Deflater.DEFAULT_COMPRESSION);
if (compressor.preferredBufferType() != BufferPreference.DIRECT_REQUIRED) {
@ -86,10 +86,11 @@ class VelocityCompressorTest {
ByteBuf decompressed = bufSupplier.get();
source.writeBytes(TEST_DATA);
int uncompressedData = source.readableBytes();
try {
compressor.deflate(source, dest);
compressor.inflate(dest, decompressed, Integer.MAX_VALUE);
compressor.inflate(dest, decompressed, uncompressedData);
source.readerIndex(0);
assertTrue(ByteBufUtil.equals(source, decompressed));
} finally {

3
proxy/build.gradle
Datei anzeigen

@ -48,8 +48,7 @@ dependencies {
compile "io.netty:netty-handler:${nettyVersion}"
compile "io.netty:netty-transport-native-epoll:${nettyVersion}"
compile "io.netty:netty-transport-native-epoll:${nettyVersion}:linux-x86_64"
compile "io.netty:netty-transport-native-kqueue:${nettyVersion}"
compile "io.netty:netty-transport-native-kqueue:${nettyVersion}:osx-x86_64"
compile "io.netty:netty-transport-native-epoll:${nettyVersion}:linux-aarch64"
compile "io.netty:netty-resolver-dns:${nettyVersion}"
compile "org.apache.logging.log4j:log4j-api:${log4jVersion}"

16
proxy/src/main/java/com/velocitypowered/proxy/VelocityServer.java
Datei anzeigen

@ -120,12 +120,12 @@ public class VelocityServer implements ProxyServer {
}
public KeyPair getServerKeyPair() {
return ensureInitialized(serverKeyPair);
return serverKeyPair;
}
@Override
public VelocityConfiguration getConfiguration() {
return ensureInitialized(this.configuration);
return this.configuration;
}
@Override
@ -229,7 +229,6 @@ public class VelocityServer implements ProxyServer {
Metrics.VelocityMetrics.startMetrics(this, configuration.getMetrics());
}
@RequiresNonNull({"pluginManager", "eventManager"})
private void loadPlugins() {
logger.info("Loading plugins...");
@ -443,18 +442,11 @@ public class VelocityServer implements ProxyServer {
}
public AsyncHttpClient getAsyncHttpClient() {
return ensureInitialized(cm).getHttpClient();
return cm.getHttpClient();
}
public Ratelimiter getIpAttemptLimiter() {
return ensureInitialized(ipAttemptLimiter);
}
private static <T> T ensureInitialized(T o) {
if (o == null) {
throw new IllegalStateException("The proxy isn't fully initialized.");
}
return o;
return ipAttemptLimiter;
}
/**

2
proxy/src/main/java/com/velocitypowered/proxy/config/VelocityConfiguration.java
Datei anzeigen

@ -465,7 +465,7 @@ public class VelocityConfiguration extends AnnotatedConfig implements ProxyConfi
Advanced advanced = new Advanced(toml.getTable("advanced"));
Query query = new Query(toml.getTable("query"));
Metrics metrics = new Metrics(toml.getTable("metrics"));
byte[] forwardingSecret = toml.getString("forwarding-secret", "5up3r53cr3t")
byte[] forwardingSecret = toml.getString("forwarding-secret", generateRandomString(12))
.getBytes(StandardCharsets.UTF_8);
String forwardingModeName = toml.getString("player-info-forwarding-mode", "MODERN")

25
proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftConnection.java
Datei anzeigen

@ -16,7 +16,6 @@ import com.velocitypowered.natives.encryption.VelocityCipher;
import com.velocitypowered.natives.encryption.VelocityCipherFactory;
import com.velocitypowered.natives.util.Natives;
import com.velocitypowered.proxy.VelocityServer;
import com.velocitypowered.proxy.network.netty.DiscardHandler;
import com.velocitypowered.proxy.protocol.MinecraftPacket;
import com.velocitypowered.proxy.protocol.StateRegistry;
import com.velocitypowered.proxy.protocol.netty.MinecraftCipherDecoder;
@ -125,6 +124,13 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
}
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
if (sessionHandler != null) {
sessionHandler.readCompleted();
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
if (ctx.channel().isActive()) {
@ -145,7 +151,6 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
}
}
installDiscardHandler(ctx);
ctx.close();
}
}
@ -161,18 +166,6 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
Preconditions.checkState(this.channel.eventLoop().inEventLoop(), "Not in event loop");
}
private void installDiscardHandler(ChannelHandlerContext ctx) {
if (ctx.pipeline().get("discard") == null) {
ctx.pipeline().addBefore(MINECRAFT_DECODER, "discard", DiscardHandler.HANDLER);
}
}
private void installDiscardHandler() {
if (channel.pipeline().get("discard") == null) {
channel.pipeline().addBefore(MINECRAFT_DECODER, "discard", DiscardHandler.HANDLER);
}
}
public EventLoop eventLoop() {
return channel.eventLoop();
}
@ -212,9 +205,10 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
*/
public void closeWith(Object msg) {
if (channel.isActive()) {
channel.eventLoop().execute(() -> {
knownDisconnect = true;
installDiscardHandler();
channel.writeAndFlush(msg).addListener(ChannelFutureListener.CLOSE);
});
}
}
@ -223,7 +217,6 @@ public class MinecraftConnection extends ChannelInboundHandlerAdapter {
*/
public void close() {
if (channel.isActive()) {
installDiscardHandler();
channel.close();
}
}

4
proxy/src/main/java/com/velocitypowered/proxy/connection/MinecraftSessionHandler.java
Datei anzeigen

@ -70,6 +70,10 @@ public interface MinecraftSessionHandler {
}
default void readCompleted() {
}
default boolean handle(AvailableCommands commands) {
return false;
}

9
proxy/src/main/java/com/velocitypowered/proxy/connection/backend/BackendPlaySessionHandler.java
Datei anzeigen

@ -188,12 +188,17 @@ public class BackendPlaySessionHandler implements MinecraftSessionHandler {
if (packet instanceof PluginMessage) {
((PluginMessage) packet).retain();
}
playerConnection.write(packet);
playerConnection.delayedWrite(packet);
}
@Override
public void handleUnknown(ByteBuf buf) {
playerConnection.write(buf.retain());
playerConnection.delayedWrite(buf.retain());
}
@Override
public void readCompleted() {
playerConnection.flush();
}
@Override

90
proxy/src/main/java/com/velocitypowered/proxy/connection/client/ClientPlaySessionHandler.java
Datei anzeigen

@ -170,41 +170,32 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
public boolean handle(PluginMessage packet) {
VelocityServerConnection serverConn = player.getConnectedServer();
MinecraftConnection backendConn = serverConn != null ? serverConn.getConnection() : null;
if (serverConn != null && backendConn != null) {
if (serverConn == null || backendConn == null) {
return true;
}
if (backendConn.getState() != StateRegistry.PLAY) {
logger.warn("A plugin message was received while the backend server was not "
+ "ready. Channel: {}. Packet discarded.", packet.getChannel());
} else if (PluginMessageUtil.isRegister(packet)) {
player.getKnownChannels().addAll(PluginMessageUtil.getChannels(packet));
backendConn.write(packet.retain());
} else if (PluginMessageUtil.isUnregister(packet)) {
player.getKnownChannels().removeAll(PluginMessageUtil.getChannels(packet));
backendConn.write(packet.retain());
} else if (PluginMessageUtil.isMcBrand(packet)) {
backendConn.write(PluginMessageUtil
.rewriteMinecraftBrand(packet, server.getVersion(), player.getProtocolVersion()));
} else {
return true;
}
if (this.tryHandleVanillaPluginMessageChannel(packet, backendConn)) {
return true;
}
if (serverConn.getPhase() == BackendConnectionPhases.IN_TRANSITION) {
// We must bypass the currently-connected server when forwarding Forge packets.
VelocityServerConnection inFlight = player.getConnectionInFlight();
if (inFlight != null) {
player.getPhase().handle(player, packet, inFlight);
if (player.getPhase().handle(player, packet, inFlight)) {
return true;
}
}
} else if (!this.tryHandleForgeMessage(packet, serverConn)) {
return true;
}
if (!player.getPhase().handle(player, packet, serverConn)) {
if (!player.getPhase().consideredComplete() || !serverConn.getPhase()
.consideredComplete()) {
// The client is trying to send messages too early. This is primarily caused by mods,
// but further aggravated by Velocity. To work around these issues, we will queue any
// non-FML handshake messages to be sent once the FML handshake has completed or the
// JoinGame packet has been received by the proxy, whichever comes first.
//
// We also need to make sure to retain these packets so they can be flushed
// appropriately.
loginPluginMessages.add(packet.retain());
} else {
ChannelIdentifier id = server.getChannelRegistrar().getFromId(packet.getChannel());
if (id == null) {
backendConn.write(packet.retain());
@ -218,11 +209,6 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
backendConn.write(message);
}, backendConn.eventLoop());
}
}
}
}
}
return true;
}
@ -277,9 +263,15 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
@Override
public void writabilityChanged() {
boolean writable = player.getConnection().getChannel().isWritable();
if (!writable) {
// We might have packets queued for the server, so flush them now to free up memory.
player.getConnection().flush();
}
VelocityServerConnection serverConn = player.getConnectedServer();
if (serverConn != null) {
boolean writable = player.getConnection().getChannel().isWritable();
MinecraftConnection smc = serverConn.getConnection();
if (smc != null) {
smc.setAutoReading(writable);
@ -287,6 +279,44 @@ public class ClientPlaySessionHandler implements MinecraftSessionHandler {
}
}
private boolean tryHandleVanillaPluginMessageChannel(PluginMessage packet,
MinecraftConnection backendConn) {
if (PluginMessageUtil.isRegister(packet)) {
player.getKnownChannels().addAll(PluginMessageUtil.getChannels(packet));
backendConn.write(packet.retain());
return true;
} else if (PluginMessageUtil.isUnregister(packet)) {
player.getKnownChannels().removeAll(PluginMessageUtil.getChannels(packet));
backendConn.write(packet.retain());
return true;
} else if (PluginMessageUtil.isMcBrand(packet)) {
backendConn.write(PluginMessageUtil.rewriteMinecraftBrand(packet, server.getVersion(),
player.getProtocolVersion()));
return true;
}
return false;
}
private boolean tryHandleForgeMessage(PluginMessage packet, VelocityServerConnection serverConn) {
if (player.getPhase().handle(player, packet, serverConn)) {
return true;
}
if (!player.getPhase().consideredComplete() || !serverConn.getPhase().consideredComplete()) {
// The client is trying to send messages too early. This is primarily caused by mods,
// but further aggravated by Velocity. To work around these issues, we will queue any
// non-FML handshake messages to be sent once the FML handshake has completed or the
// JoinGame packet has been received by the proxy, whichever comes first.
//
// We also need to make sure to retain these packets so they can be flushed
// appropriately.
loginPluginMessages.add(packet.retain());
return true;
} else {
return false;
}
}
/**
* Handles the {@code JoinGame} packet. This function is responsible for handling the client-side
* switching servers in Velocity.

20
proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
Datei anzeigen

@ -6,7 +6,7 @@ import static org.asynchttpclient.Dsl.config;
import com.google.common.base.Preconditions;
import com.velocitypowered.natives.util.Natives;
import com.velocitypowered.proxy.VelocityServer;
import com.velocitypowered.proxy.network.netty.DnsAddressResolverGroupNameResolverAdapter;
import com.velocitypowered.proxy.network.netty.SeparatePoolInetNameResolver;
import com.velocitypowered.proxy.protocol.netty.GS4QueryHandler;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
@ -18,6 +18,7 @@ import io.netty.channel.WriteBufferWaterMark;
import io.netty.channel.epoll.EpollChannelOption;
import io.netty.resolver.dns.DnsAddressResolverGroup;
import io.netty.resolver.dns.DnsNameResolverBuilder;
import io.netty.util.concurrent.GlobalEventExecutor;
import java.net.InetSocketAddress;
import java.util.HashMap;
import java.util.Map;
@ -48,7 +49,7 @@ public final class ConnectionManager {
@SuppressWarnings("WeakerAccess")
public final BackendChannelInitializerHolder backendChannelInitializer;
private final DnsAddressResolverGroup resolverGroup;
private final SeparatePoolInetNameResolver resolver;
private final AsyncHttpClient httpClient;
/**
@ -65,21 +66,16 @@ public final class ConnectionManager {
new ServerChannelInitializer(this.server));
this.backendChannelInitializer = new BackendChannelInitializerHolder(
new BackendChannelInitializer(this.server));
this.resolverGroup = new DnsAddressResolverGroup(new DnsNameResolverBuilder()
.channelType(this.transportType.datagramChannelClass)
.negativeTtl(15)
.ndots(1));
this.resolver = new SeparatePoolInetNameResolver(GlobalEventExecutor.INSTANCE);
this.httpClient = asyncHttpClient(config()
.setEventLoopGroup(this.workerGroup)
.setUserAgent(server.getVersion().getName() + "/" + server.getVersion().getVersion())
.addRequestFilter(new RequestFilter() {
@Override
public <T> FilterContext<T> filter(FilterContext<T> ctx) throws FilterException {
public <T> FilterContext<T> filter(FilterContext<T> ctx) {
return new FilterContextBuilder<>(ctx)
.request(new RequestBuilder(ctx.getRequest())
.setNameResolver(
new DnsAddressResolverGroupNameResolverAdapter(resolverGroup, workerGroup)
)
.setNameResolver(resolver)
.build())
.build();
}
@ -162,7 +158,7 @@ public final class ConnectionManager {
.option(ChannelOption.CONNECT_TIMEOUT_MILLIS,
this.server.getConfiguration().getConnectTimeout())
.group(group == null ? this.workerGroup : group)
.resolver(this.resolverGroup);
.resolver(this.resolver.asGroup());
if (transportType == TransportType.EPOLL && server.getConfiguration().useTcpFastOpen()) {
bootstrap.option(EpollChannelOption.TCP_FASTOPEN_CONNECT, true);
}
@ -194,6 +190,8 @@ public final class ConnectionManager {
Thread.currentThread().interrupt();
}
}
this.resolver.shutdown();
}
public EventLoopGroup getBossGroup() {

13
proxy/src/main/java/com/velocitypowered/proxy/network/TransportType.java
Datei anzeigen

@ -7,11 +7,6 @@ import io.netty.channel.epoll.EpollDatagramChannel;
import io.netty.channel.epoll.EpollEventLoopGroup;
import io.netty.channel.epoll.EpollServerSocketChannel;
import io.netty.channel.epoll.EpollSocketChannel;
import io.netty.channel.kqueue.KQueue;
import io.netty.channel.kqueue.KQueueDatagramChannel;
import io.netty.channel.kqueue.KQueueEventLoopGroup;
import io.netty.channel.kqueue.KQueueServerSocketChannel;
import io.netty.channel.kqueue.KQueueSocketChannel;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.DatagramChannel;
import io.netty.channel.socket.ServerSocketChannel;
@ -27,11 +22,7 @@ enum TransportType {
(name, type) -> new NioEventLoopGroup(0, createThreadFactory(name, type))),
EPOLL("epoll", EpollServerSocketChannel.class, EpollSocketChannel.class,
EpollDatagramChannel.class,
(name, type) -> new EpollEventLoopGroup(0, createThreadFactory(name, type))),
KQUEUE("Kqueue", KQueueServerSocketChannel.class, KQueueSocketChannel.class,
KQueueDatagramChannel.class,
(name, type) -> new KQueueEventLoopGroup(0, createThreadFactory(name, type)));
(name, type) -> new EpollEventLoopGroup(0, createThreadFactory(name, type)));
final String name;
final Class<? extends ServerSocketChannel> serverSocketChannelClass;
@ -71,8 +62,6 @@ enum TransportType {
if (Epoll.isAvailable()) {
return EPOLL;
} else if (KQueue.isAvailable()) {
return KQUEUE;
} else {
return NIO;
}

17
proxy/src/main/java/com/velocitypowered/proxy/network/netty/DiscardHandler.java
Datei anzeigen

@ -1,17 +0,0 @@
package com.velocitypowered.proxy.network.netty;
import io.netty.channel.ChannelHandler.Sharable;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.util.ReferenceCountUtil;
@Sharable
public class DiscardHandler extends ChannelInboundHandlerAdapter {
public static final DiscardHandler HANDLER = new DiscardHandler();
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
ReferenceCountUtil.release(msg);
}
}

68
proxy/src/main/java/com/velocitypowered/proxy/network/netty/DnsAddressResolverGroupNameResolverAdapter.java
Datei anzeigen

@ -1,68 +0,0 @@
package com.velocitypowered.proxy.network.netty;
import io.netty.channel.EventLoopGroup;
import io.netty.resolver.InetNameResolver;
import io.netty.resolver.dns.DnsAddressResolverGroup;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.concurrent.FutureListener;
import io.netty.util.concurrent.ImmediateEventExecutor;
import io.netty.util.concurrent.Promise;
import io.netty.util.internal.ThreadExecutorMap;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.util.ArrayList;
import java.util.List;
public class DnsAddressResolverGroupNameResolverAdapter extends InetNameResolver {
private final DnsAddressResolverGroup resolverGroup;
private final EventLoopGroup group;
/**
* Creates a DnsAddressResolverGroupNameResolverAdapter.
* @param resolverGroup the resolver group to use
* @param group the event loop group
*/
public DnsAddressResolverGroupNameResolverAdapter(
DnsAddressResolverGroup resolverGroup, EventLoopGroup group) {
super(ImmediateEventExecutor.INSTANCE);
this.resolverGroup = resolverGroup;
this.group = group;
}
@Override
protected void doResolve(String inetHost, Promise<InetAddress> promise) throws Exception {
EventExecutor executor = this.findExecutor();
resolverGroup.getResolver(executor).resolve(InetSocketAddress.createUnresolved(inetHost, 17))
.addListener((FutureListener<InetSocketAddress>) future -> {
if (future.isSuccess()) {
promise.trySuccess(future.getNow().getAddress());
} else {
promise.tryFailure(future.cause());
}
});
}
@Override
protected void doResolveAll(String inetHost, Promise<List<InetAddress>> promise)
throws Exception {
EventExecutor executor = this.findExecutor();
resolverGroup.getResolver(executor).resolveAll(InetSocketAddress.createUnresolved(inetHost, 17))
.addListener((FutureListener<List<InetSocketAddress>>) future -> {
if (future.isSuccess()) {
List<InetAddress> addresses = new ArrayList<>(future.getNow().size());
for (InetSocketAddress address : future.getNow()) {
addresses.add(address.getAddress());
}
promise.trySuccess(addresses);
} else {
promise.tryFailure(future.cause());
}
});
}
private EventExecutor findExecutor() {
EventExecutor current = ThreadExecutorMap.currentExecutor();
return current == null ? group.next() : current;
}
}

79
proxy/src/main/java/com/velocitypowered/proxy/network/netty/SeparatePoolInetNameResolver.java Normale Datei
Datei anzeigen

@ -0,0 +1,79 @@
package com.velocitypowered.proxy.network.netty;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import io.netty.resolver.AddressResolver;
import io.netty.resolver.AddressResolverGroup;
import io.netty.resolver.DefaultNameResolver;
import io.netty.resolver.InetNameResolver;
import io.netty.util.concurrent.EventExecutor;
import io.netty.util.concurrent.Future;
import io.netty.util.concurrent.Promise;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.RejectedExecutionException;
public final class SeparatePoolInetNameResolver extends InetNameResolver {
private final ExecutorService resolveExecutor;
private final InetNameResolver delegate;
private AddressResolverGroup<InetSocketAddress> resolverGroup;
/**
* Creates a new instance of {@code SeparatePoolInetNameResolver}.
*
* @param executor the {@link EventExecutor} which is used to notify the listeners of the {@link
* Future} returned by {@link #resolve(String)}
*/
public SeparatePoolInetNameResolver(EventExecutor executor) {
super(executor);
this.resolveExecutor = Executors.newSingleThreadExecutor(
new ThreadFactoryBuilder()
.setNameFormat("Velocity DNS Resolver")
.setDaemon(true)
.build());
this.delegate = new DefaultNameResolver(executor);
}
@Override
protected void doResolve(String inetHost, Promise<InetAddress> promise) throws Exception {
try {
resolveExecutor.execute(() -> this.delegate.resolve(inetHost, promise));
} catch (RejectedExecutionException e) {
promise.setFailure(e);
}
}
@Override
protected void doResolveAll(String inetHost, Promise<List<InetAddress>> promise)
throws Exception {
try {
resolveExecutor.execute(() -> this.delegate.resolveAll(inetHost, promise));
} catch (RejectedExecutionException e) {
promise.setFailure(e);
}
}
public void shutdown() {
this.resolveExecutor.shutdown();
}
/**
* Returns a view of this resolver as a AddressResolverGroup.
*
* @return a view of this resolver as a AddressResolverGroup
*/
public AddressResolverGroup<InetSocketAddress> asGroup() {
if (this.resolverGroup == null) {
this.resolverGroup = new AddressResolverGroup<InetSocketAddress>() {
@Override
protected AddressResolver<InetSocketAddress> newResolver(EventExecutor executor) {
return asAddressResolver();
}
};
}
return this.resolverGroup;
}
}

1
proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCipherDecoder.java
Datei anzeigen

@ -22,7 +22,6 @@ public class MinecraftCipherDecoder extends MessageToMessageDecoder<ByteBuf> {
try {
cipher.process(compatible);
out.add(compatible);
in.skipBytes(in.readableBytes());
} catch (Exception e) {
compatible.release(); // compatible will never be used if we throw an exception
throw e;

18
proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressDecoder.java
Datei anzeigen

@ -13,9 +13,13 @@ import java.util.List;
public class MinecraftCompressDecoder extends MessageToMessageDecoder<ByteBuf> {
private static final int SOFT_MAXIMUM_UNCOMPRESSED_SIZE = 2 * 1024 * 1024; // 2MiB
private static final int VANILLA_MAXIMUM_UNCOMPRESSED_SIZE = 2 * 1024 * 1024; // 2MiB
private static final int HARD_MAXIMUM_UNCOMPRESSED_SIZE = 16 * 1024 * 1024; // 16MiB
private static final int UNCOMPRESSED_CAP =
Boolean.getBoolean("velocity.increased-compression-cap")
? HARD_MAXIMUM_UNCOMPRESSED_SIZE : VANILLA_MAXIMUM_UNCOMPRESSED_SIZE;
private final int threshold;
private final VelocityCompressor compressor;
@ -28,21 +32,21 @@ public class MinecraftCompressDecoder extends MessageToMessageDecoder<ByteBuf> {
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
int claimedUncompressedSize = ProtocolUtils.readVarInt(in);
if (claimedUncompressedSize == 0) {
// Strip the now-useless uncompressed size, this message is already uncompressed.
// This message is not compressed.
out.add(in.retainedSlice());
in.skipBytes(in.readableBytes());
return;
}
checkFrame(claimedUncompressedSize >= threshold, "Uncompressed size %s is less than"
+ " threshold %s", claimedUncompressedSize, threshold);
int allowedMax = Math.min(claimedUncompressedSize, HARD_MAXIMUM_UNCOMPRESSED_SIZE);
int initialCapacity = Math.min(claimedUncompressedSize, SOFT_MAXIMUM_UNCOMPRESSED_SIZE);
checkFrame(claimedUncompressedSize <= UNCOMPRESSED_CAP,
"Uncompressed size %s exceeds hard threshold of %s", claimedUncompressedSize,
UNCOMPRESSED_CAP);
ByteBuf compatibleIn = ensureCompatible(ctx.alloc(), compressor, in);
ByteBuf uncompressed = preferredBuffer(ctx.alloc(), compressor, initialCapacity);
ByteBuf uncompressed = preferredBuffer(ctx.alloc(), compressor, claimedUncompressedSize);
try {
compressor.inflate(compatibleIn, uncompressed, allowedMax);
compressor.inflate(compatibleIn, uncompressed, claimedUncompressedSize);
out.add(uncompressed);
} catch (Exception e) {
uncompressed.release();

7
proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftCompressEncoder.java
Datei anzeigen

@ -38,8 +38,11 @@ public class MinecraftCompressEncoder extends MessageToByteEncoder<ByteBuf> {
@Override
protected ByteBuf allocateBuffer(ChannelHandlerContext ctx, ByteBuf msg, boolean preferDirect)
throws Exception {
int initialBufferSize = msg.readableBytes() <= threshold ? msg.readableBytes() + 1 :
msg.readableBytes() / 3;
// Follow the advice of https://github.com/ebiggers/libdeflate/blob/master/libdeflate.h#L103
// here for compression. The maximum buffer size if the data compresses well (which is almost
// always the case) is one less the input buffer.
int offset = msg.readableBytes() < threshold ? 1 : -1;
int initialBufferSize = msg.readableBytes() + offset;
return MoreByteBufUtils.preferredBuffer(ctx.alloc(), compressor, initialBufferSize);
}

85
proxy/src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftVarintFrameDecoder.java
Datei anzeigen

@ -1,43 +1,88 @@
package com.velocitypowered.proxy.protocol.netty;
import com.velocitypowered.proxy.protocol.ProtocolUtils;
import com.velocitypowered.proxy.util.except.QuietException;
import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import io.netty.handler.codec.CorruptedFrameException;
import io.netty.util.ByteProcessor;
import java.util.List;
public class MinecraftVarintFrameDecoder extends ByteToMessageDecoder {
private static final QuietException BAD_LENGTH_CACHED = new QuietException("Bad packet length");
private static final QuietException VARINT_BIG_CACHED = new QuietException("VarInt too big");
private final VarintByteDecoder reader = new VarintByteDecoder();
@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
if (!in.isReadable()) {
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
if (!ctx.channel().isActive()) {
in.skipBytes(in.readableBytes());
return;
}
int origReaderIndex = in.readerIndex();
for (int i = 0; i < 3; i++) {
if (!in.isReadable()) {
in.readerIndex(origReaderIndex);
while (in.isReadable()) {
reader.reset();
int varintEnd = in.forEachByte(reader);
if (varintEnd == -1) {
// We tried to go beyond the end of the buffer. This is probably a good sign that the
// buffer was too short to hold a proper varint.
return;
}
byte read = in.readByte();
if (read >= 0) {
// Make sure reader index of length buffer is returned to the beginning
in.readerIndex(origReaderIndex);
int packetLength = ProtocolUtils.readVarInt(in);
if (in.readableBytes() >= packetLength) {
out.add(in.readRetainedSlice(packetLength));
if (reader.result == DecodeResult.SUCCESS) {
if (reader.readVarint < 0) {
throw BAD_LENGTH_CACHED;
} else if (reader.readVarint == 0) {
// skip over the empty packet and ignore it
in.readerIndex(varintEnd + 1);
} else {
int minimumRead = reader.bytesRead + reader.readVarint;
if (in.isReadable(minimumRead)) {
out.add(in.retainedSlice(varintEnd + 1, reader.readVarint));
in.skipBytes(minimumRead);
} else {
in.readerIndex(origReaderIndex);
}
return;
}
}
} else if (reader.result == DecodeResult.TOO_BIG) {
throw VARINT_BIG_CACHED;
} else if (reader.result == DecodeResult.TOO_SHORT) {
// No-op: we couldn't get a useful result.
break;
}
}
}
throw new CorruptedFrameException("VarInt too big");
private static class VarintByteDecoder implements ByteProcessor {
private int readVarint;
private int bytesRead;
private DecodeResult result = DecodeResult.TOO_SHORT;
@Override
public boolean process(byte k) {
readVarint |= (k & 0x7F) << bytesRead++ * 7;
if (bytesRead > 3) {
result = DecodeResult.TOO_BIG;
return false;
}
if ((k & 0x80) != 128) {
result = DecodeResult.SUCCESS;
return false;
}
return true;
}
void reset() {
readVarint = 0;
bytesRead = 0;
result = DecodeResult.TOO_SHORT;
}
}
private enum DecodeResult {
SUCCESS,
TOO_SHORT,
TOO_BIG
}
}