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Support version identification of Minecraft 1.14

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This commit is contained in:
huanghongxun 2019-02-06 21:54:51 +08:00
parent c0bcafd747
commit 639bc58e84
1 changed files with 41 additions and 0 deletions
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41
HMCLCore/src/main/java/org/jackhuang/hmcl/game/GameVersion.java
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@ -17,12 +17,17 @@
*/
package org.jackhuang.hmcl.game;
import com.google.gson.JsonParseException;
import com.google.gson.annotations.SerializedName;
import org.jackhuang.hmcl.util.gson.JsonUtils;
import org.jackhuang.hmcl.util.io.CompressingUtils;
import org.jackhuang.hmcl.util.io.FileUtils;
import org.jenkinsci.constant_pool_scanner.ConstantPool;
import org.jenkinsci.constant_pool_scanner.ConstantPoolScanner;
import org.jenkinsci.constant_pool_scanner.ConstantType;
import org.jenkinsci.constant_pool_scanner.StringConstant;
import javax.swing.text.html.Option;
import java.io.File;
import java.io.IOException;
import java.nio.file.FileSystem;
@ -37,6 +42,15 @@ import java.util.stream.StreamSupport;
* @author huangyuhui
*/
public final class GameVersion {
private static Optional<String> getVersionFromJson(Path versionJson) {
try {
MinecraftVersion version = JsonUtils.fromNonNullJson(FileUtils.readText(versionJson), MinecraftVersion.class);
return Optional.of(version.name);
} catch (IOException | JsonParseException | NullPointerException e) {
return Optional.empty();
}
}
private static Optional<String> getVersionOfClassMinecraft(byte[] bytecode) throws IOException {
ConstantPool pool = ConstantPoolScanner.parse(bytecode, ConstantType.STRING);
@ -74,6 +88,13 @@ public final class GameVersion {
return Optional.empty();
try (FileSystem gameJar = CompressingUtils.createReadOnlyZipFileSystem(file.toPath())) {
Path versionJson = gameJar.getPath("version.json");
if (Files.exists(versionJson)) {
Optional<String> result = getVersionFromJson(versionJson);
if (result.isPresent())
return result;
}
Path minecraft = gameJar.getPath("net/minecraft/client/Minecraft.class");
if (Files.exists(minecraft)) {
Optional<String> result = getVersionOfClassMinecraft(Files.readAllBytes(minecraft));
@ -88,4 +109,24 @@ public final class GameVersion {
return Optional.empty();
}
}
private static final class MinecraftVersion {
public String name;
@SerializedName("release_target")
public String releaseTarget;
public String id;
public boolean stable;
@SerializedName("world_version")
public int worldVersion;
@SerializedName("protocol_version")
public int protocolVersion;
@SerializedName("pack_version")
public int packVersion;
}
}