68 lines
2.8 KiB
Java
68 lines
2.8 KiB
Java
package io.gitlab.jfronny.inceptum.util.api;
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import io.gitlab.jfronny.inceptum.Inceptum;
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import io.gitlab.jfronny.inceptum.model.mojang.*;
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import io.gitlab.jfronny.inceptum.util.OSCheck;
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import io.gitlab.jfronny.inceptum.util.Utils;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.util.List;
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import java.util.Map;
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import static io.gitlab.jfronny.inceptum.util.Utils.downloadObject;
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public class McApi {
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public static VersionsList getVersions() {
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try {
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return downloadObject("https://launchermeta.mojang.com/mc/game/version_manifest.json", VersionsList.class);
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} catch (IOException e) {
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throw new RuntimeException("Could not load version manifest", e);
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}
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}
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public static VersionInfo getVersionInfo(VersionsListInfo listInfo) throws IOException {
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return downloadObject(listInfo.url, VersionInfo.class);
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}
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public static AssetIndex getAssetIndex(VersionInfo info) throws IOException {
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Path file = Inceptum.ASSETS_DIR.resolve("indexes");
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if (!Files.exists(file)) Files.createDirectories(file);
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file = file.resolve(info.assetIndex.url.substring(info.assetIndex.url.lastIndexOf("/") + 1));
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try {
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Utils.downloadFile(info.assetIndex.url, info.assetIndex.sha1, file);
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}
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catch (IOException e) {
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if (!Files.exists(file)) throw e;
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}
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return Utils.loadObject(file, AssetIndex.class);
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}
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public static Map<String, JvmFileInfo.File> getJvm(String component, int majorVersion) throws IOException {
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// https://github.com/ATLauncher/ATLauncher/blob/master/src/main/java/com/atlauncher/constants/Constants.java#L116
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JvmInfo info = Utils.downloadObject("https://launchermeta.mojang.com/v1/products/java-runtime/2ec0cc96c44e5a76b9c8b7c39df7210883d12871/all.json", JvmInfo.class);
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JvmInfo.Jvms vms = switch (OSCheck.OS) {
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case WINDOWS -> info.windowsX64;
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case LINUX -> info.linux;
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case MAC_OS -> info.macOs;
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};
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List<JvmInfo.Jvms.Jvm> vmList = switch (component) {
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case "java-runtime-alpha" -> vms.javaRuntimeAlpha;
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case "jre-legacy" -> vms.jreLegacy;
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default -> throw new IOException("Invalid JVM component: " + component);
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};
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for (JvmInfo.Jvms.Jvm jvm : vmList) {
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if (jvm.version.name.startsWith(Integer.toString(majorVersion))) {
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return downloadObject(jvm.manifest.url, jvm.manifest.sha1, JvmFileInfo.class).files;
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}
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}
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throw new IOException("JVM not found");
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}
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public static void downloadAsset(AssetIndex.Asset asset, Path path) throws IOException {
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String url = "http://resources.download.minecraft.net/" + asset.hash.substring(0, 2) + "/" + asset.hash;
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Utils.downloadFile(url, asset.hash, path);
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}
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}
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