MultiMC/ForgeWrapper
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Fix compatibility with Java 9+.

Browse source 
Remove unnecessary functions.
This commit is contained in:
ZekerZhayard 2020-03-29 02:03:57 +08:00
parent fb8888aed9
commit 9f65af36b0
7 changed files with 29 additions and 319 deletions
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20
README.md
View file

@ -2,9 +2,10 @@
Allow [MultiMC](https://github.com/MultiMC/MultiMC5) to launch Minecraft 1.13+ with Forge.
## How to use
**ForgeWrapper has been adopted by MultiMC, you do not need to perform the following steps manually. (2020-03-29)**
## How to use (Outdated)
### Install Forge Only
1. Download Forge installer for Minecraft 1.13+ [here](https://files.minecraftforge.net/).
2. Download ForgeWrapper jar file at the [release](https://github.com/ZekerZhayard/ForgeWrapper/releases) page.
3. Run the below command in terminal:
@ -14,17 +15,4 @@ Allow [MultiMC](https://github.com/MultiMC/MultiMC5) to launch Minecraft 1.13+ w
*Notice: If you don't specify a MultiMC instance path, ForgeWrapper will create the instance folder in current working space.*
4. If the instance folder which just created is not in `MultiMC/instances` folder, you just need to move to the `MultiMC/instances` folder.
5. Run MultiMC, and you will see a new instance named `forge-<mcVersion>-<forgeVersion>`.
### Install CurseForge Modpack
1. Download the modpack zip file.
2. Download ForgeWrapper jar file at the [release](https://github.com/ZekerZhayard/ForgeWrapper/releases) page.
3. Run the below command in terminal:
```
java -jar <ForgeWrapper.jar> --cursepack=<curseforge-modpack.zip> [--instance=<instance-path>]
```
*Notice: If you don't specify a MultiMC instance path, ForgeWrapper will create the instance folder in current working space.*
4. If the instance folder which just created is not in `MultiMC/instances` folder, you just need to move to the `MultiMC/instances` folder.
5. Run MultiMC, and you will see a new instance named `<modpackName>-<modpackVersion>`.
*Notice: CurseForge modpack will be installed on first launch by [cursepacklocator](https://github.com/cpw/cursepacklocator), it will take a few minutes.*
5. Run MultiMC, and you will see a new instance named `forge-<mcVersion>-<forgeVersion>`.

2
build.gradle
View file

@ -5,7 +5,7 @@ apply plugin: "idea"
sourceCompatibility = targetCompatibility = 1.8
version = "1.4.0"
version = "1.4.1"
group = "io.github.zekerzhayard"
archivesBaseName = rootProject.name

166
src/main/java/cpw/mods/forge/cursepacklocator/Murmur2.java
View file

@ -1,166 +0,0 @@
/**
* Copyright 2014 Prasanth Jayachandran
*
* 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 cpw.mods.forge.cursepacklocator;
/**
* Murmur2 32 and 64 bit variants.
* 32-bit Java port of https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash2.cpp#37
* 64-bit Java port of https://code.google.com/p/smhasher/source/browse/trunk/MurmurHash2.cpp#96
*/
public class Murmur2 {
// Constants for 32-bit variant
private static final int M_32 = 0x5bd1e995;
private static final int R_32 = 24;
// Constants for 64-bit variant
private static final long M_64 = 0xc6a4a7935bd1e995L;
private static final int R_64 = 47;
private static final int DEFAULT_SEED = 0;
/**
* Murmur2 32-bit variant.
*
* @param data - input byte array
* @return - hashcode
*/
public static int hash32(byte[] data) {
return hash32(data, data.length, DEFAULT_SEED);
}
/**
* Murmur2 32-bit variant.
*
* @param data - input byte array
* @param length - length of array
* @param seed - seed. (default 0)
* @return - hashcode
*/
public static int hash32(byte[] data, int length, int seed) {
int h = seed ^ length;
int len_4 = length >> 2;
// body
for (int i = 0; i < len_4; i++) {
int i_4 = i << 2;
int k = (data[i_4] & 0xff)
| ((data[i_4 + 1] & 0xff) << 8)
| ((data[i_4 + 2] & 0xff) << 16)
| ((data[i_4 + 3] & 0xff) << 24);
// mix functions
k *= M_32;
k ^= k >>> R_32;
k *= M_32;
h *= M_32;
h ^= k;
}
// tail
int len_m = len_4 << 2;
int left = length - len_m;
if (left != 0) {
// see https://github.com/cpw/cursepacklocator/pull/3
if (left >= 3) {
h ^= (int) data[length - (left - 2)] << 16;
}
if (left >= 2) {
h ^= (int) data[length - (left - 1)] << 8;
}
if (left >= 1) {
h ^= (int) data[length - left];
}
h *= M_32;
}
// finalization
h ^= h >>> 13;
h *= M_32;
h ^= h >>> 15;
return h;
}
/**
* Murmur2 64-bit variant.
*
* @param data - input byte array
* @return - hashcode
*/
public static long hash64(final byte[] data) {
return hash64(data, data.length, DEFAULT_SEED);
}
/**
* Murmur2 64-bit variant.
*
* @param data - input byte array
* @param length - length of array
* @param seed - seed. (default 0)
* @return - hashcode
*/
public static long hash64(final byte[] data, int length, int seed) {
long h = (seed & 0xffffffffl) ^ (length * M_64);
int length8 = length >> 3;
// body
for (int i = 0; i < length8; i++) {
final int i8 = i << 3;
long k = ((long) data[i8] & 0xff)
| (((long) data[i8 + 1] & 0xff) << 8)
| (((long) data[i8 + 2] & 0xff) << 16)
| (((long) data[i8 + 3] & 0xff) << 24)
| (((long) data[i8 + 4] & 0xff) << 32)
| (((long) data[i8 + 5] & 0xff) << 40)
| (((long) data[i8 + 6] & 0xff) << 48)
| (((long) data[i8 + 7] & 0xff) << 56);
// mix functions
k *= M_64;
k ^= k >>> R_64;
k *= M_64;
h ^= k;
h *= M_64;
}
// tail
int tailStart = length8 << 3;
switch (length - tailStart) {
case 7:
h ^= (long) (data[tailStart + 6] & 0xff) << 48;
case 6:
h ^= (long) (data[tailStart + 5] & 0xff) << 40;
case 5:
h ^= (long) (data[tailStart + 4] & 0xff) << 32;
case 4:
h ^= (long) (data[tailStart + 3] & 0xff) << 24;
case 3:
h ^= (long) (data[tailStart + 2] & 0xff) << 16;
case 2:
h ^= (long) (data[tailStart + 1] & 0xff) << 8;
case 1:
h ^= (long) (data[tailStart] & 0xff);
h *= M_64;
}
// finalization
h ^= h >>> R_64;
h *= M_64;
h ^= h >>> R_64;
return h;
}
}

65
src/main/java/io/github/zekerzhayard/forgewrapper/Utils.java
View file

@ -1,65 +0,0 @@
package io.github.zekerzhayard.forgewrapper;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Locale;
public class Utils {
private static final char[] DIGITS = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
public static void download(String url, String location) throws Exception {
File localFile = new File(location);
localFile.getParentFile().mkdirs();
if (localFile.isFile()) {
try {
System.out.println("Checking Fingerprints of installer...");
String md5 = new BufferedReader(new InputStreamReader(new URL(url + ".md5").openConnection().getInputStream())).readLine();
String sha1 = new BufferedReader(new InputStreamReader(new URL(url + ".sha1").openConnection().getInputStream())).readLine();
if (!checkMD5(location, md5) || !checkSHA1(location, sha1)) {
System.out.println("Fingerprints do not match!");
localFile.delete();
}
} catch (IOException e) {
e.printStackTrace();
}
}
if (!localFile.isFile()) {
if (localFile.isDirectory()) {
throw new RuntimeException(location + " must be a file!");
}
System.out.println("Downloading forge installer... (" + url + " ---> " + location + ")");
Files.copy(new URL(url).openConnection().getInputStream(), Paths.get(location), StandardCopyOption.REPLACE_EXISTING);
download(url, location);
}
}
public static boolean checkMD5(String path, String hash) throws IOException, NoSuchAlgorithmException {
String md5 = new String(encodeHex(MessageDigest.getInstance("MD5").digest(Files.readAllBytes(Paths.get(path)))));
System.out.println("MD5: " + hash + " ---> " + md5);
return md5.toLowerCase(Locale.ENGLISH).equals(hash.toLowerCase(Locale.ENGLISH));
}
public static boolean checkSHA1(String path, String hash) throws IOException, NoSuchAlgorithmException {
String sha1 = new String(encodeHex(MessageDigest.getInstance("SHA-1").digest(Files.readAllBytes(Paths.get(path)))));
System.out.println("SHA-1: " + hash + " ---> " + sha1);
return sha1.toLowerCase(Locale.ENGLISH).equals(hash.toLowerCase(Locale.ENGLISH));
}
private static char[] encodeHex(final byte[] data) {
final int l = data.length;
final char[] out = new char[l << 1];
for (int i = 0, j = 0; i < l; i++) {
out[j++] = DIGITS[(0xF0 & data[i]) >>> 4];
out[j++] = DIGITS[0x0F & data[i]];
}
return out;
}
}

60
src/main/java/io/github/zekerzhayard/forgewrapper/converter/Converter.java
View file

@ -9,7 +9,6 @@ import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
@ -22,33 +21,27 @@ import com.google.gson.JsonElement;
import com.google.gson.JsonNull;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import io.github.zekerzhayard.forgewrapper.Utils;
public class Converter {
public static void convert(Path installerPath, Path targetDir, Path multimcDir, String cursepack) throws Exception {
if (cursepack != null) {
installerPath = getForgeInstallerFromCursePack(cursepack);
}
public static void convert(Path installerPath, Path targetDir, Path multimcDir) throws Exception {
JsonObject installer = getJsonFromZip(installerPath, "version.json");
JsonObject installProfile = getJsonFromZip(installerPath, "install_profile.json");
List<String> arguments = getAdditionalArgs(installer);
String mcVersion = arguments.get(arguments.indexOf("--fml.mcVersion") + 1);
String forgeVersion = arguments.get(arguments.indexOf("--fml.forgeVersion") + 1);
String forgeFullVersion = "forge-" + mcVersion + "-" + forgeVersion;
String instanceName = cursepack == null ? forgeFullVersion : installerPath.toFile().getName().replace("-installer.jar", "");
StringBuilder wrapperVersion = new StringBuilder();
JsonObject pack = convertPackJson(mcVersion);
JsonObject patches = convertPatchesJson(installer, installProfile, mcVersion, forgeVersion, wrapperVersion, cursepack);
JsonObject patches = convertPatchesJson(installer, installProfile, mcVersion, forgeVersion, wrapperVersion);
Files.createDirectories(targetDir);
// Copy mmc-pack.json and instance.cfg to <instance> folder.
Path instancePath = targetDir.resolve(instanceName);
Path instancePath = targetDir.resolve(forgeFullVersion);
Files.createDirectories(instancePath);
Files.copy(new ByteArrayInputStream(pack.toString().getBytes(StandardCharsets.UTF_8)), instancePath.resolve("mmc-pack.json"), StandardCopyOption.REPLACE_EXISTING);
Files.copy(new ByteArrayInputStream(("InstanceType=OneSix\nname=" + instanceName).getBytes(StandardCharsets.UTF_8)), instancePath.resolve("instance.cfg"), StandardCopyOption.REPLACE_EXISTING);
Files.copy(new ByteArrayInputStream(("InstanceType=OneSix\nname=" + forgeFullVersion).getBytes(StandardCharsets.UTF_8)), instancePath.resolve("instance.cfg"), StandardCopyOption.REPLACE_EXISTING);
// Copy ForgeWrapper to <instance>/libraries folder.
Path librariesPath = instancePath.resolve("libraries");
@ -60,22 +53,9 @@ public class Converter {
Files.createDirectories(patchesPath);
Files.copy(new ByteArrayInputStream(patches.toString().getBytes(StandardCharsets.UTF_8)), patchesPath.resolve("net.minecraftforge.json"), StandardCopyOption.REPLACE_EXISTING);
// Extract all curse pack entries to <instance>/.minecraft folder.
Path minecraftPath = instancePath.resolve(".minecraft");
if (cursepack != null) {
ZipFile zip = new ZipFile(cursepack);
Enumeration<? extends ZipEntry> entries = zip.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
Path targetFolder = minecraftPath.resolve(entry.getName());
Files.createDirectories(targetFolder.getParent());
Files.copy(zip.getInputStream(entry), targetFolder, StandardCopyOption.REPLACE_EXISTING);
}
}
// Copy forge installer to MultiMC/libraries/net/minecraftforge/forge/<mcVersion>-<forgeVersion> folder.
if (multimcDir != null) {
Path targetInstallerPath = multimcDir.resolve("net").resolve("minecraftforge").resolve("forge").resolve(forgeVersion);
Path targetInstallerPath = multimcDir.resolve("libraries").resolve("net").resolve("minecraftforge").resolve("forge").resolve(forgeVersion);
Files.createDirectories(targetInstallerPath);
Files.copy(installerPath, targetInstallerPath.resolve(forgeFullVersion + "-installer.jar"), StandardCopyOption.REPLACE_EXISTING);
}
@ -101,28 +81,6 @@ public class Converter {
}
}
private static Path getForgeInstallerFromCursePack(String cursepack) throws Exception {
JsonObject manifest = getJsonFromZip(Paths.get(cursepack), "manifest.json");
JsonObject minecraft = getElement(manifest, "minecraft").getAsJsonObject();
String mcVersion = getElement(minecraft, "version").getAsString();
String forgeVersion = null;
for (JsonElement element : getElement(minecraft, "modLoaders").getAsJsonArray()) {
String id = getElement(element.getAsJsonObject(), "id").getAsString();
if (id.startsWith("forge-")) {
forgeVersion = id.replace("forge-", "");
break;
}
}
if (forgeVersion == null) {
throw new RuntimeException("The curse pack is invalid!");
}
String packName = getElement(manifest, "name").getAsString();
String packVersion = getElement(manifest, "version").getAsString();
Path installer = Paths.get(System.getProperty("java.io.tmpdir", "."), String.format("%s-%s-installer.jar", packName, packVersion));
Utils.download(String.format("https://files.minecraftforge.net/maven/net/minecraftforge/forge/%s-%s/forge-%s-%s-installer.jar", mcVersion, forgeVersion, mcVersion, forgeVersion), installer.toString());
return installer;
}
// Convert mmc-pack.json:
// - Replace Minecraft version
private static JsonObject convertPackJson(String mcVersion) {
@ -142,7 +100,7 @@ public class Converter {
// - Add libraries
// - Add forge-launcher url
// - Replace Minecraft & Forge versions
private static JsonObject convertPatchesJson(JsonObject installer, JsonObject installProfile, String mcVersion, String forgeVersion, StringBuilder wrapperVersion, String cursepack) {
private static JsonObject convertPatchesJson(JsonObject installer, JsonObject installProfile, String mcVersion, String forgeVersion, StringBuilder wrapperVersion) {
JsonObject patches = new JsonParser().parse(new InputStreamReader(Converter.class.getResourceAsStream("/patches/net.minecraftforge.json"))).getAsJsonObject();
JsonArray mavenFiles = getElement(patches, "mavenFiles").getAsJsonArray();
JsonArray libraries = getElement(patches, "libraries").getAsJsonArray();
@ -160,12 +118,6 @@ public class Converter {
wrapperVersion.append(getElement(lib.getAsJsonObject(), "MMC-filename").getAsString());
}
}
if (cursepack != null) {
JsonObject cursepacklocator = new JsonObject();
cursepacklocator.addProperty("name", "cpw.mods.forge:cursepacklocator:1.2.0");
cursepacklocator.addProperty("url", "https://files.minecraftforge.net/maven/");
libraries.add(cursepacklocator);
}
Map<String, String> additionalUrls = new HashMap<>();
String path = String.format("net/minecraftforge/forge/%s-%s/forge-%s-%s", mcVersion, forgeVersion, mcVersion, forgeVersion);
additionalUrls.put(path + "-universal.jar", "https://files.minecraftforge.net/maven/" + path + "-universal.jar");

19
src/main/java/io/github/zekerzhayard/forgewrapper/converter/Main.java
View file

@ -6,29 +6,18 @@ import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.HashMap;
import io.github.zekerzhayard.forgewrapper.Utils;
public class Main {
public static void main(String[] args) {
Path installer = null, instance = Paths.get("."), multimc = null;
String cursepack = null;
try {
HashMap<String, String> argsMap = parseArgs(args);
if (argsMap.containsKey("--installer")) {
installer = Paths.get(argsMap.get("--installer"));
} else {
installer = Paths.get(System.getProperty("java.io.tmpdir", "."), "gson-2.8.6.jar");
Utils.download("https://repo1.maven.org/maven2/com/google/code/gson/gson/2.8.6/gson-2.8.6.jar", installer.toString());
}
installer = Paths.get(argsMap.get("--installer"));
if (argsMap.containsKey("--instance")) {
instance = Paths.get(argsMap.get("--instance"));
multimc = instance.getParent();
}
if (argsMap.containsKey("--cursepack")) {
cursepack = argsMap.get("--cursepack");
}
} catch (Exception e) {
System.out.println("Invalid arguments! Use: java -jar <ForgeWrapper.jar> [--installer=<forge-installer.jar> | --cursepack=<curseforge-modpack.zip>] [--instance=<instance-path>]");
System.out.println("Invalid arguments! Use: java -jar <ForgeWrapper.jar> --installer=<forge-installer.jar> [--instance=<instance-path>]");
throw new RuntimeException(e);
}
@ -37,7 +26,7 @@ public class Main {
Converter.class.getProtectionDomain().getCodeSource().getLocation(),
installer.toUri().toURL()
}, null);
ucl.loadClass("io.github.zekerzhayard.forgewrapper.converter.Converter").getMethod("convert", Path.class, Path.class, Path.class, String.class).invoke(null, installer, instance, multimc, cursepack);
ucl.loadClass("io.github.zekerzhayard.forgewrapper.converter.Converter").getMethod("convert", Path.class, Path.class, Path.class).invoke(null, installer, instance, multimc);
System.out.println("Successfully install Forge for MultiMC!");
} catch (Exception e) {
System.out.println("Failed to install Forge!");
@ -56,7 +45,7 @@ public class Main {
String[] params = arg.split("=", 2);
map.put(params[0], params[1]);
}
if (!map.containsKey("--installer") && !map.containsKey("--cursepack")) {
if (!map.containsKey("--installer")) {
throw new IllegalArgumentException();
}
return map;

16
src/main/java/io/github/zekerzhayard/forgewrapper/installer/Main.java
View file

@ -23,12 +23,12 @@ public class Main {
Path minecraftDir = librariesDir.resolve("net").resolve("minecraft").resolve("client");
Path forgeDir = librariesDir.resolve("net").resolve("minecraftforge").resolve("forge").resolve(forgeFullVersion);
if (getAdditionalLibraries(minecraftDir, forgeDir, mcVersion, forgeFullVersion, mcpFullVersion).anyMatch(path -> !Files.exists(path))) {
System.out.println("Some extra libraries are missing! Run installer to spawn them now.");
System.out.println("Some extra libraries are missing! Run the installer to generate them now.");
URLClassLoader ucl = URLClassLoader.newInstance(new URL[] {
Main.class.getProtectionDomain().getCodeSource().getLocation(),
Launcher.class.getProtectionDomain().getCodeSource().getLocation(),
forgeDir.resolve("forge-" + forgeFullVersion + "-installer.jar").toUri().toURL()
}, null);
}, getParentClassLoader());
Class<?> installer = ucl.loadClass("io.github.zekerzhayard.forgewrapper.installer.Installer");
if (!(boolean) installer.getMethod("install").invoke(null)) {
@ -56,4 +56,16 @@ public class Main {
minecraftDir.resolve(mcpFullVersion).resolve("client-" + mcpFullVersion + "-srg.jar")
);
}
// https://github.com/MinecraftForge/Installer/blob/fe18a164b5ebb15b5f8f33f6a149cc224f446dc2/src/main/java/net/minecraftforge/installer/actions/PostProcessors.java#L287-L303
private static ClassLoader getParentClassLoader() {
if (!System.getProperty("java.version").startsWith("1.")) {
try {
return (ClassLoader) ClassLoader.class.getDeclaredMethod("getPlatformClassLoader").invoke(null);
} catch (Exception e) {
System.out.println("No platform classloader: " + System.getProperty("java.version"));
}
}
return null;
}
}