Fix: 无法安装带有 Fabric 的非标准 MMC 整合包 (#4034)

- 修复无法安装带有 Fabric 的非标准 MMC 整合包的漏洞
- 在安装时写入当前安装器实现信息和启动器信息，以在后续调试时获得更多信息

Fix #4049

minecraft/libraries/HMCLMultiMCBootstrap/build.gradle.kts

@@ -0,0 +1,15 @@
+version = "1.0"
+
+tasks.compileJava {
+    sourceCompatibility = "1.8"
+    targetCompatibility = "1.8"
+}
+
+tasks.jar {
+    manifest {
+        attributes(
+            "Created-By" to "Copyright(c) 2013-2025 huangyuhui.",
+            "Implementation-Version" to project.version
+        )
+    }
+}

minecraft/libraries/HMCLMultiMCBootstrap/src/main/java/org/jackhuang/hmcl/HMCLMultiMCBootstrap.java

@@ -0,0 +1,116 @@
+/*
+ * Hello Minecraft! Launcher
+ * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package org.jackhuang.hmcl;
+
+import java.io.UnsupportedEncodingException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.net.URI;
+import java.net.URLDecoder;
+import java.nio.charset.StandardCharsets;
+import java.util.Base64;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Scanner;
+
+public final class HMCLMultiMCBootstrap {
+    private HMCLMultiMCBootstrap() {
+    }
+
+    public static void main(String[] args) throws Throwable {
+        String profile = System.getProperty("hmcl.mmc.bootstrap");
+        if (profile == null) {
+            launchLegacy(args);
+            return;
+        }
+
+        URI uri = URI.create(profile);
+        if (Objects.equals(uri.getPath(), "/bootstrap_profile_v1/")) {
+            launchV1(parseQuery(uri.getRawQuery()), args);
+        }
+    }
+
+    private static void launchV1(Map<String, String> arguments, String[] args) throws Throwable {
+        String mainClass = arguments.get("main_class");
+        String installerInfo = arguments.get("installer");
+
+        launch(installerInfo, mainClass, args);
+    }
+
+    private static void launchLegacy(String[] args) throws Throwable {
+        String mainClass = new String(Base64.getUrlDecoder().decode(System.getProperty("hmcl.mmc.bootstrap.main")), StandardCharsets.UTF_8);
+        String installerInfo = new String(Base64.getUrlDecoder().decode(System.getProperty("hmcl.mmc.bootstrap.installer")), StandardCharsets.UTF_8);
+
+        launch(installerInfo, mainClass, args);
+    }
+
+    private static void launch(String installerInfo, String mainClass, String[] args) throws Throwable {
+        System.out.println("This version is installed by HMCLCore's MultiMC combat layer.");
+        System.out.println("Installer Properties:");
+        System.out.println(installerInfo);
+        System.out.println("Main Class: " + mainClass);
+        System.out.println("GAME MAY CRASH DUE TO BUGS. TEST YOUR GAME ON OFFICIAL MMC BEFORE REPORTING BUGS TO AUTHORS.");
+
+        Method[] methods = Class.forName(mainClass).getMethods();
+        for (Method method : methods) {
+            // https://docs.oracle.com/javase/specs/jls/se21/html/jls-12.html#jls-12.1.4
+            if ("main".equals(method.getName()) &&
+                    Modifier.isStatic(method.getModifiers()) &&
+                    method.getReturnType() == void.class &&
+                    method.getParameterCount() == 1 &&
+                    method.getParameters()[0].getType() == String[].class
+            ) {
+                method.invoke(null, (Object) args);
+                return;
+            }
+        }
+
+        throw new IllegalArgumentException("Cannot find method 'main(String[])' in " + mainClass);
+    }
+
+    private static Map<String, String> parseQuery(String queryParameterString) {
+        if (queryParameterString == null) return Collections.emptyMap();
+
+        Map<String, String> result = new HashMap<>();
+
+        try (Scanner scanner = new Scanner(queryParameterString)) {
+            scanner.useDelimiter("&");
+            while (scanner.hasNext()) {
+                String[] nameValue = scanner.next().split("=");
+                if (nameValue.length == 0 || nameValue.length > 2) {
+                    throw new IllegalArgumentException("bad query string");
+                }
+
+                String name = decodeURL(nameValue[0]);
+                String value = nameValue.length == 2 ? decodeURL(nameValue[1]) : null;
+                result.put(name, value);
+            }
+        }
+        return result;
+    }
+
+    private static String decodeURL(String value) {
+        try {
+            return URLDecoder.decode(value, "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            throw new AssertionError(e);
+        }
+    }
+}