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# jar-relocator
This is a fork of [jar-relocator by lucko](https://github.com/lucko/jar-relocator/) with some changes required for our own use.
#### Full list of changes
* Packages renamed from `me.lucko` to `com.hypherionmc`.
* Added a DirectoryRelocator task that allows remapping files inside a directory, instead of a jar
* Added a runDirectory() method to JarRelocator.
* Converted from MAVEN to Gradle
* Not published to maven central
* Not signed
This fork will probably not be of much use to anyone else, but it's kept here for source control, and to disclose the source of the library
### License
This library is licensed under Apache License Version 2.0, just like the original.

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plugins {
id 'java'
id 'maven-publish'
id 'com.github.johnrengelman.shadow' version '7.0.0'
}
group 'com.hypherionmc'
version '1.0.0'
repositories {
mavenCentral()
}
configurations {
shadeMe
implementation.extendsFrom shadeMe
}
dependencies {
shadeMe 'org.ow2.asm:asm:9.2'
shadeMe 'org.ow2.asm:asm-commons:9.2'
}
tasks.withType(JavaCompile) {
options.encoding = 'UTF-8'
sourceCompatibility = JavaVersion.VERSION_1_8
targetCompatibility = JavaVersion.VERSION_1_8
}
tasks.register('sourcesJar', Jar) {
archiveClassifier.set('sources')
from sourceSets.main.allJava
}
tasks.register('javadocJar', Jar) {
archiveClassifier.set('javadoc')
dependsOn 'javadoc'
from javadoc.destinationDir
}
shadowJar {
duplicatesStrategy = DuplicatesStrategy.EXCLUDE
configurations = [project.configurations.getByName("shadeMe")]
archiveClassifier.set(null)
}
publishing {
publications {
mavenJava(MavenPublication) {
artifact shadowJar
artifact sourcesJar
artifact javadocJar
}
}
repositories {
maven {
url System.getenv('MAVEN_URL')
credentials {
username System.getenv('MAVEN_USER')
password System.getenv('MAVEN_PASS')
}
}
}
}

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#Sun Oct 29 20:46:13 SAST 2023
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed 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
#
# https://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.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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rootProject.name = 'jar-relocator'

192
src/main/java/com/hypherionmc/jarrelocator/DirectoryRelocatorTask.java Normal file
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package com.hypherionmc.jarrelocator;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.*;
import java.util.jar.Attributes;
import java.util.jar.Manifest;
import java.util.regex.Pattern;
/**
* @author HypherionSA
* Same as {@link JarRelocatorTask}, but works on a directory instead of a jar
*/
final class DirectoryRelocatorTask {
/**
* META-INF/*.SF
* META-INF/*.DSA
* META-INF/*.RSA
* META-INF/SIG-*
*
* <a href="https://docs.oracle.com/en/java/javase/11/docs/specs/jar/jar.html#signed-jar-file">Specification</a>
*/
private static final Pattern SIGNATURE_FILE_PATTERN = Pattern.compile("META-INF/(?:[^/]+\\.(?:DSA|RSA|SF)|SIG-[^/]+)");
/**
* <a href="https://docs.oracle.com/en/java/javase/11/docs/specs/jar/jar.html#signature-validation">Specification</a>
*/
private static final Pattern SIGNATURE_PROPERTY_PATTERN = Pattern.compile(".*-Digest");
private final RelocatingRemapper remapper;
private final Set<String> resources = new HashSet<>();
private final File inputDirectory;
DirectoryRelocatorTask(RelocatingRemapper remapper, File inputDirectory) {
this.remapper = remapper;
this.inputDirectory = inputDirectory;
}
void processEntries() throws IOException {
for (File entry : listAllFiles(inputDirectory)) {
String name = entry.getName();
if (name.equals("META-INF/INDEX.LIST") || entry.isDirectory()) {
continue;
}
// Signatures will become invalid after remapping, so we delete them to avoid making the output useless
if (SIGNATURE_FILE_PATTERN.matcher(name).matches()) {
continue;
}
try (InputStream entryIn = Files.newInputStream(entry.toPath())) {
processEntry(entry, entryIn);
}
}
}
List<File> listAllFiles(File file) {
List<File> returnList = new ArrayList<>();
File[] files = file.listFiles();
if (files == null)
return new ArrayList<>();
for (File f : files) {
if (f.isDirectory()) {
returnList.addAll(listAllFiles(f));
continue;
}
returnList.add(f);
}
return returnList;
}
private void processEntry(File entry, InputStream inputStream) throws IOException {
String name = entry.getAbsolutePath();
String mappedName = this.remapper.map(name);
// ensure the parent directory structure exists for the entry.
processDirectory(mappedName, true);
if (name.endsWith(".class")) {
processClass(name, inputStream);
} else if (name.equals("META-INF/MANIFEST.MF")) {
processManifest(name, inputStream);
} else if (!this.resources.contains(mappedName)) {
processResource(mappedName, inputStream);
}
}
private void processDirectory(String name, boolean parentsOnly) throws IOException {
int index = name.lastIndexOf('/');
if (index != -1) {
String parentDirectory = name.substring(0, index);
if (!this.resources.contains(parentDirectory)) {
processDirectory(parentDirectory, false);
}
}
if (parentsOnly) {
return;
}
// directory entries must end in "/"
File dir = new File(inputDirectory, name);
if (!dir.exists())
dir.mkdirs();
this.resources.add(name);
}
private void processResource(String name, InputStream entryIn) throws IOException {
File file = new File(name);
File tmpFile = new File(name + ".tmp");
FileOutputStream outputStream = new FileOutputStream(tmpFile);
copy(entryIn, outputStream);
outputStream.close();
Files.move(tmpFile.toPath(), file.toPath(), StandardCopyOption.REPLACE_EXISTING);
this.resources.add(name);
}
private void processClass(String name, InputStream entryIn) throws IOException {
ClassReader classReader = new ClassReader(entryIn);
ClassWriter classWriter = new ClassWriter(0);
RelocatingClassVisitor classVisitor = new RelocatingClassVisitor(classWriter, this.remapper, name);
try {
classReader.accept(classVisitor, ClassReader.EXPAND_FRAMES);
} catch (Throwable e) {
throw new RuntimeException("Error processing class " + name, e);
}
byte[] renamedClass = classWriter.toByteArray();
// Need to take the .class off for remapping evaluation
String mappedName = this.remapper.map(name.substring(0, name.indexOf('.')));
File outName = new File(mappedName + ".class");
File tmpFile = new File(mappedName + ".tmp");
FileOutputStream outputStream = new FileOutputStream(tmpFile);
// Now we put it back on so the class file is written out with the right extension.
outputStream.write(renamedClass);
outputStream.close();
Files.move(tmpFile.toPath(), outName.toPath(), StandardCopyOption.REPLACE_EXISTING);
}
private void processManifest(String name, InputStream entryIn) throws IOException {
Manifest in = new Manifest(entryIn);
Manifest out = new Manifest();
out.getMainAttributes().putAll(in.getMainAttributes());
for (Map.Entry<String, Attributes> entry : in.getEntries().entrySet()) {
Attributes outAttributes = new Attributes();
for (Map.Entry<Object, Object> property : entry.getValue().entrySet()) {
String key = property.getKey().toString();
if (!SIGNATURE_PROPERTY_PATTERN.matcher(key).matches()) {
outAttributes.put(property.getKey(), property.getValue());
}
}
out.getEntries().put(entry.getKey(), outAttributes);
}
File outFile = new File(name);
File tempFile = new File(name + ".tmp");
FileOutputStream outputStream = new FileOutputStream(tempFile);
out.write(outputStream);
outputStream.close();
Files.move(tempFile.toPath(), outFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
this.resources.add(name);
}
private static void copy(InputStream from, OutputStream to) throws IOException {
byte[] buf = new byte[8192];
while (true) {
int n = from.read(buf);
if (n == -1) {
break;
}
to.write(buf, 0, n);
}
}
}

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/*
* Copyright Apache Software Foundation
*
* Licensed 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.
*/
package com.hypherionmc.jarrelocator;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.jar.JarFile;
import java.util.jar.JarOutputStream;
/**
* Relocates classes and resources within a jar file.
*/
public final class JarRelocator {
/** The input jar */
private final File input;
/** The output jar */
private final File output;
/** The relocating remapper */
private final RelocatingRemapper remapper;
/** If the {@link #run()} method has been called yet */
private final AtomicBoolean used = new AtomicBoolean(false);
/**
* Creates a new instance with the given settings.
*
* @param input the input jar file
* @param output the output jar file
* @param relocations the relocations
*/
public JarRelocator(File input, File output, Collection<Relocation> relocations) {
this.input = input;
this.output = output;
this.remapper = new RelocatingRemapper(relocations);
}
/**
* Creates a new instance with the given settings.
*
* @param input the input jar file
* @param output the output jar file
* @param relocations the relocations
*/
public JarRelocator(File input, File output, Map<String, String> relocations) {
this.input = input;
this.output = output;
Collection<Relocation> c = new ArrayList<>(relocations.size());
for (Map.Entry<String, String> entry : relocations.entrySet()) {
c.add(new Relocation(entry.getKey(), entry.getValue()));
}
this.remapper = new RelocatingRemapper(c);
}
/**
* Executes the relocation task
*
* @throws IOException if an exception is encountered whilst performing i/o
* with the input or output file
*/
public void run() throws IOException {
if (this.used.getAndSet(true)) {
throw new IllegalStateException("#run has already been called on this instance");
}
try (JarOutputStream out = new JarOutputStream(new BufferedOutputStream(Files.newOutputStream(this.output.toPath())))) {
try (JarFile in = new JarFile(this.input)) {
JarRelocatorTask task = new JarRelocatorTask(this.remapper, out, in);
task.processEntries();
}
}
}
public void runDirectory() throws IOException {
if (this.used.getAndSet(true)) {
throw new IllegalStateException("#run has already been called on this instance");
}
DirectoryRelocatorTask task = new DirectoryRelocatorTask(remapper, input);
task.processEntries();
}
}

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/*
* Copyright Apache Software Foundation
*
* Licensed 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.
*/
package com.hypherionmc.jarrelocator;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.jar.*;
import java.util.regex.Pattern;
/**
* A task that copies {@link JarEntry jar entries} from a {@link JarFile jar input} to a
* {@link JarOutputStream jar output}, applying the relocations defined by a
* {@link RelocatingRemapper}.
*/
final class JarRelocatorTask {
/**
* META-INF/*.SF
* META-INF/*.DSA
* META-INF/*.RSA
* META-INF/SIG-*
*
* <a href="https://docs.oracle.com/en/java/javase/11/docs/specs/jar/jar.html#signed-jar-file">Specification</a>
*/
private static final Pattern SIGNATURE_FILE_PATTERN = Pattern.compile("META-INF/(?:[^/]+\\.(?:DSA|RSA|SF)|SIG-[^/]+)");
/**
* <a href="https://docs.oracle.com/en/java/javase/11/docs/specs/jar/jar.html#signature-validation">Specification</a>
*/
private static final Pattern SIGNATURE_PROPERTY_PATTERN = Pattern.compile(".*-Digest");
private final RelocatingRemapper remapper;
private final JarOutputStream jarOut;
private final JarFile jarIn;
private final Set<String> resources = new HashSet<>();
JarRelocatorTask(RelocatingRemapper remapper, JarOutputStream jarOut, JarFile jarIn) {
this.remapper = remapper;
this.jarOut = jarOut;
this.jarIn = jarIn;
}
void processEntries() throws IOException {
for (Enumeration<JarEntry> entries = this.jarIn.entries(); entries.hasMoreElements(); ) {
JarEntry entry = entries.nextElement();
// The 'INDEX.LIST' file is an optional file, containing information about the packages
// defined in a jar. Instead of relocating the entries in it, we delete it, since it is
// optional anyway.
//
// We don't process directory entries, and instead opt to recreate them when adding
// classes/resources.
String name = entry.getName();
if (name.equals("META-INF/INDEX.LIST") || entry.isDirectory()) {
continue;
}
// Signatures will become invalid after remapping, so we delete them to avoid making the output useless
if (SIGNATURE_FILE_PATTERN.matcher(name).matches()) {
continue;
}
try (InputStream entryIn = this.jarIn.getInputStream(entry)) {
processEntry(entry, entryIn);
}
}
}
private void processEntry(JarEntry entry, InputStream entryIn) throws IOException {
String name = entry.getName();
String mappedName = this.remapper.map(name);
// ensure the parent directory structure exists for the entry.
processDirectory(mappedName, true);
if (name.endsWith(".class")) {
processClass(name, entryIn);
} else if (name.equals("META-INF/MANIFEST.MF")) {
processManifest(name, entryIn, entry.getTime());
} else if (!this.resources.contains(mappedName)) {
processResource(mappedName, entryIn, entry.getTime());
}
}
private void processDirectory(String name, boolean parentsOnly) throws IOException {
int index = name.lastIndexOf('/');
if (index != -1) {
String parentDirectory = name.substring(0, index);
if (!this.resources.contains(parentDirectory)) {
processDirectory(parentDirectory, false);
}
}
if (parentsOnly) {
return;
}
// directory entries must end in "/"
JarEntry entry = new JarEntry(name + "/");
this.jarOut.putNextEntry(entry);
this.resources.add(name);
}
private void processManifest(String name, InputStream entryIn, long lastModified) throws IOException {
Manifest in = new Manifest(entryIn);
Manifest out = new Manifest();
out.getMainAttributes().putAll(in.getMainAttributes());
for (Map.Entry<String, Attributes> entry : in.getEntries().entrySet()) {
Attributes outAttributes = new Attributes();
for (Map.Entry<Object, Object> property : entry.getValue().entrySet()) {
String key = property.getKey().toString();
if (!SIGNATURE_PROPERTY_PATTERN.matcher(key).matches()) {
outAttributes.put(property.getKey(), property.getValue());
}
}
out.getEntries().put(entry.getKey(), outAttributes);
}
JarEntry jarEntry = new JarEntry(name);
jarEntry.setTime(lastModified);
this.jarOut.putNextEntry(jarEntry);
out.write(this.jarOut);
this.resources.add(name);
}
private void processResource(String name, InputStream entryIn, long lastModified) throws IOException {
JarEntry jarEntry = new JarEntry(name);
jarEntry.setTime(lastModified);
this.jarOut.putNextEntry(jarEntry);
copy(entryIn, this.jarOut);
this.resources.add(name);
}
private void processClass(String name, InputStream entryIn) throws IOException {
ClassReader classReader = new ClassReader(entryIn);
ClassWriter classWriter = new ClassWriter(0);
RelocatingClassVisitor classVisitor = new RelocatingClassVisitor(classWriter, this.remapper, name);
try {
classReader.accept(classVisitor, ClassReader.EXPAND_FRAMES);
} catch (Throwable e) {
throw new RuntimeException("Error processing class " + name, e);
}
byte[] renamedClass = classWriter.toByteArray();
// Need to take the .class off for remapping evaluation
String mappedName = this.remapper.map(name.substring(0, name.indexOf('.')));
// Now we put it back on so the class file is written out with the right extension.
this.jarOut.putNextEntry(new JarEntry(mappedName + ".class"));
this.jarOut.write(renamedClass);
}
private static void copy(InputStream from, OutputStream to) throws IOException {
byte[] buf = new byte[8192];
while (true) {
int n = from.read(buf);
if (n == -1) {
break;
}
to.write(buf, 0, n);
}
}
}

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/*
* Copyright Apache Software Foundation
*
* Licensed 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.
*/
package com.hypherionmc.jarrelocator;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.ClassRemapper;
/**
* A {@link ClassVisitor} that relocates types and names with a {@link RelocatingRemapper}.
*/
final class RelocatingClassVisitor extends ClassRemapper {
private final String packageName;
RelocatingClassVisitor(ClassWriter writer, RelocatingRemapper remapper, String name) {
super(Opcodes.ASM9, writer, remapper);
this.packageName = name.substring(0, name.lastIndexOf('/') + 1);
}
@Override
public void visitSource(String source, String debug) {
if (source == null) {
super.visitSource(null, debug);
return;
}
// visit source file name
String name = this.packageName + source;
String mappedName = super.remapper.map(name);
String mappedFileName = mappedName.substring(mappedName.lastIndexOf('/') + 1);
super.visitSource(mappedFileName, debug);
}
}

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/*
* Copyright Apache Software Foundation
*
* Licensed 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.
*/
package com.hypherionmc.jarrelocator;
import org.objectweb.asm.commons.Remapper;
import java.util.Collection;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Remaps class names and types using defined {@link Relocation} rules.
*/
final class RelocatingRemapper extends Remapper {
private static final Pattern CLASS_PATTERN = Pattern.compile("(\\[*)?L(.+);");
// https://docs.oracle.com/javase/10/docs/specs/jar/jar.html#multi-release-jar-files
private static final Pattern VERSION_PATTERN = Pattern.compile("^(META-INF/versions/\\d+/)(.*)$");
private final Collection<Relocation> rules;
RelocatingRemapper(Collection<Relocation> rules) {
this.rules = rules;
}
@Override
public String map(String name) {
String relocatedName = relocate(name, false);
if (relocatedName != null) {
return relocatedName;
}
return super.map(name);
}
@Override
public Object mapValue(Object object) {
if (object instanceof String) {
String relocatedName = relocate((String) object, true);
if (relocatedName != null) {
return relocatedName;
}
}
return super.mapValue(object);
}
private String relocate(String name, boolean isStringValue) {
String prefix = "";
String suffix = "";
if (isStringValue) {
Matcher m = CLASS_PATTERN.matcher(name);
if (m.matches()) {
prefix = m.group(1) + "L";
name = m.group(2);
suffix = ";";
}
}
Matcher m = VERSION_PATTERN.matcher(name);
if (m.matches()) {
prefix = m.group(1);
name = m.group(2);
}
for (Relocation r : this.rules) {
if (isStringValue && r.canRelocateClass(name)) {
return prefix + r.relocateClass(name) + suffix;
} else if (r.canRelocatePath(name)) {
return prefix + r.relocatePath(name) + suffix;
}
}
return null;
}
}

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/*
* Copyright Apache Software Foundation
*
* Licensed 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.
*/
package com.hypherionmc.jarrelocator;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;
/**
* A relocation rule
*/
public final class Relocation {
private final String pattern;
private final String relocatedPattern;
private final String pathPattern;
private final String relocatedPathPattern;
private final Set<String> includes;
private final Set<String> excludes;
/**
* Creates a new relocation
*
* @param pattern the pattern to match
* @param relocatedPattern the pattern to relocate to
* @param includes a collection of patterns which this rule should specifically include
* @param excludes a collection of patterns which this rule should specifically exclude
*/
public Relocation(String pattern, String relocatedPattern, Collection<String> includes, Collection<String> excludes) {
this.pattern = pattern.replace('/', '.');
this.pathPattern = pattern.replace('.', '/');
this.relocatedPattern = relocatedPattern.replace('/', '.');
this.relocatedPathPattern = relocatedPattern.replace('.', '/');
if (includes != null && !includes.isEmpty()) {
this.includes = normalizePatterns(includes);
this.includes.addAll(includes);
} else {
this.includes = null;
}
if (excludes != null && !excludes.isEmpty()) {
this.excludes = normalizePatterns(excludes);
this.excludes.addAll(excludes);
} else {
this.excludes = null;
}
}
/**
* Creates a new relocation with no specific includes or excludes
*
* @param pattern the pattern to match
* @param relocatedPattern the pattern to relocate to
*/
public Relocation(String pattern, String relocatedPattern) {
this(pattern, relocatedPattern, Collections.<String>emptyList(), Collections.<String>emptyList());
}
private boolean isIncluded(String path) {
if (this.includes == null) {
return true;
}
for (String include : this.includes) {
if (SelectorUtils.matchPath(include, path, true)) {
return true;
}
}
return false;
}
private boolean isExcluded(String path) {
if (this.excludes == null) {
return false;
}
for (String exclude : this.excludes) {
if (SelectorUtils.matchPath(exclude, path, true)) {
return true;
}
}
return false;
}
boolean canRelocatePath(String path) {
if (path.endsWith(".class")) {
path = path.substring(0, path.length() - 6);
}
if (!isIncluded(path) || isExcluded(path)) {
return false;
}
return path.startsWith(this.pathPattern) || path.startsWith("/" + this.pathPattern);
}
boolean canRelocateClass(String clazz) {
return clazz.indexOf('/') == -1 && canRelocatePath(clazz.replace('.', '/'));
}
String relocatePath(String path) {
return path.replaceFirst(this.pathPattern, this.relocatedPathPattern);
}
String relocateClass(String clazz) {
return clazz.replaceFirst(this.pattern, this.relocatedPattern);
}
private static Set<String> normalizePatterns(Collection<String> patterns) {
Set<String> normalized = new LinkedHashSet<>();
for (String pattern : patterns) {
String classPattern = pattern.replace('.', '/');
normalized.add(classPattern);
if (classPattern.endsWith("/*")) {
String packagePattern = classPattern.substring(0, classPattern.lastIndexOf('/'));
normalized.add(packagePattern);
}
}
return normalized;
}
}

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/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.codehaus.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "Ant" and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact codehaus@codehaus.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.codehaus.org/>.
*/
package com.hypherionmc.jarrelocator;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
/**
* This is a stripped down version of org.codehaus.plexus.util.SelectorUtils for
* use in {@link Relocation}.
*
* @author Arnout J. Kuiper <a href="mailto:ajkuiper@wxs.nl">ajkuiper@wxs.nl</a>
* @author Magesh Umasankar
* @author <a href="mailto:bruce@callenish.com">Bruce Atherton</a>
*/
final class SelectorUtils {
private static final String PATTERN_HANDLER_PREFIX = "[";
private static final String PATTERN_HANDLER_SUFFIX = "]";
private static final String REGEX_HANDLER_PREFIX = "%regex" + PATTERN_HANDLER_PREFIX;
private static final String ANT_HANDLER_PREFIX = "%ant" + PATTERN_HANDLER_PREFIX;
private static boolean isAntPrefixedPattern(String pattern) {
return pattern.length() > (ANT_HANDLER_PREFIX.length() + PATTERN_HANDLER_SUFFIX.length() + 1)
&& pattern.startsWith(ANT_HANDLER_PREFIX) && pattern.endsWith(PATTERN_HANDLER_SUFFIX);
}
// When str starts with a File.separator, pattern has to start with a File.separator.
// When pattern starts with a File.separator, str has to start with a File.separator.
private static boolean separatorPatternStartSlashMismatch(String pattern, String str, String separator) {
return str.startsWith(separator) != pattern.startsWith(separator);
}
public static boolean matchPath(String pattern, String str, boolean isCaseSensitive) {
return matchPath(pattern, str, File.separator, isCaseSensitive);
}
private static boolean matchPath(String pattern, String str, String separator, boolean isCaseSensitive) {
if (isRegexPrefixedPattern(pattern)) {
pattern = pattern.substring(REGEX_HANDLER_PREFIX.length(), pattern.length() - PATTERN_HANDLER_SUFFIX.length());
return str.matches(pattern);
} else {
if (isAntPrefixedPattern(pattern)) {
pattern = pattern.substring(ANT_HANDLER_PREFIX.length(), pattern.length() - PATTERN_HANDLER_SUFFIX.length());
}
return matchAntPathPattern(pattern, str, separator, isCaseSensitive);
}
}
private static boolean isRegexPrefixedPattern(String pattern) {
return pattern.length() > (REGEX_HANDLER_PREFIX.length() + PATTERN_HANDLER_SUFFIX.length() + 1)
&& pattern.startsWith(REGEX_HANDLER_PREFIX) && pattern.endsWith(PATTERN_HANDLER_SUFFIX);
}
private static boolean matchAntPathPattern(String pattern, String str, String separator, boolean isCaseSensitive) {
if (separatorPatternStartSlashMismatch(pattern, str, separator)) {
return false;
}
String[] patDirs = tokenizePathToString(pattern, separator);
String[] strDirs = tokenizePathToString(str, separator);
return matchAntPathPattern(patDirs, strDirs, isCaseSensitive);
}
private static boolean matchAntPathPattern(String[] patDirs, String[] strDirs, boolean isCaseSensitive) {
int patIdxStart = 0;
int patIdxEnd = patDirs.length - 1;
int strIdxStart = 0;
int strIdxEnd = strDirs.length - 1;
// up to first '**'
while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) {
String patDir = patDirs[patIdxStart];
if (patDir.equals("**")) {
break;
}
if (!match(patDir, strDirs[strIdxStart], isCaseSensitive)) {
return false;
}
patIdxStart++;
strIdxStart++;
}
if (strIdxStart > strIdxEnd) {
// String is exhausted
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (!patDirs[i].equals("**")) {
return false;
}
}
return true;
} else {
if (patIdxStart > patIdxEnd) {
// String not exhausted, but pattern is. Failure.
return false;
}
}
// up to last '**'
while (patIdxStart <= patIdxEnd && strIdxStart <= strIdxEnd) {
String patDir = patDirs[patIdxEnd];
if (patDir.equals("**")) {
break;
}
if (!match(patDir, strDirs[strIdxEnd], isCaseSensitive)) {
return false;
}
patIdxEnd--;
strIdxEnd--;
}
if (strIdxStart > strIdxEnd) {
// String is exhausted
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (!patDirs[i].equals("**")) {
return false;
}
}
return true;
}
while (patIdxStart != patIdxEnd && strIdxStart <= strIdxEnd) {
int patIdxTmp = -1;
for (int i = patIdxStart + 1; i <= patIdxEnd; i++) {
if (patDirs[i].equals("**")) {
patIdxTmp = i;
break;
}
}
if (patIdxTmp == patIdxStart + 1) {
// '**/**' situation, so skip one
patIdxStart++;
continue;
}
// Find the pattern between padIdxStart & padIdxTmp in str between
// strIdxStart & strIdxEnd
int patLength = (patIdxTmp - patIdxStart - 1);
int strLength = (strIdxEnd - strIdxStart + 1);
int foundIdx = -1;
strLoop:
for (int i = 0; i <= strLength - patLength; i++) {
for (int j = 0; j < patLength; j++) {
String subPat = patDirs[patIdxStart + j + 1];
String subStr = strDirs[strIdxStart + i + j];
if (!match(subPat, subStr, isCaseSensitive)) {
continue strLoop;
}
}
foundIdx = strIdxStart + i;
break;
}
if (foundIdx == -1) {
return false;
}
patIdxStart = patIdxTmp;
strIdxStart = foundIdx + patLength;
}
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (!patDirs[i].equals("**")) {
return false;
}
}
return true;
}
private static boolean match(String pattern, String str, boolean isCaseSensitive) {
char[] patArr = pattern.toCharArray();
char[] strArr = str.toCharArray();
return match(patArr, strArr, isCaseSensitive);
}
private static boolean match(char[] patArr, char[] strArr, boolean isCaseSensitive) {
int patIdxStart = 0;
int patIdxEnd = patArr.length - 1;
int strIdxStart = 0;
int strIdxEnd = strArr.length - 1;
char ch;
boolean containsStar = false;
for (char aPatArr : patArr) {
if (aPatArr == '*') {
containsStar = true;
break;
}
}
if (!containsStar) {
// No '*'s, so we make a shortcut
if (patIdxEnd != strIdxEnd) {
return false; // Pattern and string do not have the same size
}
for (int i = 0; i <= patIdxEnd; i++) {
ch = patArr[i];
if (ch != '?' && !equals(ch, strArr[i], isCaseSensitive)) {
return false; // Character mismatch
}
}
return true; // String matches against pattern
}
if (patIdxEnd == 0) {
return true; // Pattern contains only '*', which matches anything
}
// Process characters before first star
while ((ch = patArr[patIdxStart]) != '*' && strIdxStart <= strIdxEnd) {
if (ch != '?' && !equals(ch, strArr[strIdxStart], isCaseSensitive)) {
return false; // Character mismatch
}
patIdxStart++;
strIdxStart++;
}
if (strIdxStart > strIdxEnd) {
// All characters in the string are used. Check if only '*'s are
// left in the pattern. If so, we succeeded. Otherwise failure.
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (patArr[i] != '*') {
return false;
}
}
return true;
}
// Process characters after last star
while ((ch = patArr[patIdxEnd]) != '*' && strIdxStart <= strIdxEnd) {
if (ch != '?' && !equals(ch, strArr[strIdxEnd], isCaseSensitive)) {
return false; // Character mismatch
}
patIdxEnd--;
strIdxEnd--;
}
if (strIdxStart > strIdxEnd) {
// All characters in the string are used. Check if only '*'s are
// left in the pattern. If so, we succeeded. Otherwise failure.
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (patArr[i] != '*') {
return false;
}
}
return true;
}
// process pattern between stars. padIdxStart and patIdxEnd point
// always to a '*'.
while (patIdxStart != patIdxEnd && strIdxStart <= strIdxEnd) {
int patIdxTmp = -1;
for (int i = patIdxStart + 1; i <= patIdxEnd; i++) {
if (patArr[i] == '*') {
patIdxTmp = i;
break;
}
}
if (patIdxTmp == patIdxStart + 1) {
// Two stars next to each other, skip the first one.
patIdxStart++;
continue;
}
// Find the pattern between padIdxStart & padIdxTmp in str between
// strIdxStart & strIdxEnd
int patLength = (patIdxTmp - patIdxStart - 1);
int strLength = (strIdxEnd - strIdxStart + 1);
int foundIdx = -1;
strLoop:
for (int i = 0; i <= strLength - patLength; i++) {
for (int j = 0; j < patLength; j++) {
ch = patArr[patIdxStart + j + 1];
if (ch != '?' && !equals(ch, strArr[strIdxStart + i + j], isCaseSensitive)) {
continue strLoop;
}
}
foundIdx = strIdxStart + i;
break;
}
if (foundIdx == -1) {
return false;
}
patIdxStart = patIdxTmp;
strIdxStart = foundIdx + patLength;
}
// All characters in the string are used. Check if only '*'s are left
// in the pattern. If so, we succeeded. Otherwise failure.
for (int i = patIdxStart; i <= patIdxEnd; i++) {
if (patArr[i] != '*') {
return false;
}
}
return true;
}
/**
* Tests whether two characters are equal.
*/
private static boolean equals(char c1, char c2, boolean isCaseSensitive) {
if (c1 == c2) {
return true;
}
if (!isCaseSensitive) {
// NOTE: Try both upper case and lower case as done by String.equalsIgnoreCase()
if (Character.toUpperCase(c1) == Character.toUpperCase(c2)
|| Character.toLowerCase(c1) == Character.toLowerCase(c2)) {
return true;
}
}
return false;
}
private static String[] tokenizePathToString(String path, String separator) {
List<String> ret = new ArrayList<String>();
StringTokenizer st = new StringTokenizer(path, separator);
while (st.hasMoreTokens()) {
ret.add(st.nextToken());
}
return ret.toArray(new String[ret.size()]);
}
/**
* Private Constructor
*/
private SelectorUtils() {
}
}