Start.java
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/*
* This file is part of LiteLoader.
* Copyright (C) 2012-16 Adam Mummery-Smith
* All Rights Reserved.
*/
package com.mumfrey.liteloader.debug;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import net.minecraft.launchwrapper.Launch;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableSet;
import com.mumfrey.liteloader.launch.LiteLoaderTweaker;
import com.mumfrey.liteloader.launch.LiteLoaderTweakerServer;
import com.mumfrey.liteloader.util.log.LiteLoaderLogger;
/**
* Wrapper class for LaunchWrapper Main class, which logs in using Yggdrasil
* first so that online shizzle can be tested.
*
* @author Adam Mummery-Smith
*/
public abstract class Start
{
/**
* Number of times to retry Yggdrasil login
*/
private static final int LOGIN_RETRIES = 5;
/**
* Arguments which are allowed to have multiple occurrences
*/
private static final Set<String> MULTI_VALUE_ARGS = ImmutableSet.<String>of(
"--tweakClass"
);
/**
* Entry point.
*
* @param args
*/
public static void main(String[] args)
{
System.setProperty("mcpenv", "true");
Launch.main(Start.processArgs(args));
}
/**
* Process the launch-time args, since we may be being launched by
* GradleStart we need to parse out any values passed in and ensure we
* replace them with our own.
*/
private static String[] processArgs(String[] args)
{
List<String> unqualifiedArgs = new ArrayList<String>();
Map<String, Set<String>> qualifiedArgs = new HashMap<String, Set<String>>();
Start.parseArgs(args, unqualifiedArgs, qualifiedArgs);
if (Start.hasArg(unqualifiedArgs, "server"))
{
Start.addRequiredArgsServer(args, unqualifiedArgs, qualifiedArgs);
}
else
{
Start.addRequiredArgsClient(args, unqualifiedArgs, qualifiedArgs);
}
args = Start.combineArgs(args, unqualifiedArgs, qualifiedArgs);
return args;
}
private static boolean hasArg(List<String> args, String target)
{
for (String arg : args)
{
if (target.equalsIgnoreCase(arg))
{
return true;
}
}
return false;
}
/**
* Read the args from the command line into the qualified and unqualified
* collections.
*/
private static void parseArgs(String[] args, List<String> unqualifiedArgs, Map<String, Set<String>> qualifiedArgs)
{
String qualifier = null;
for (String arg : args)
{
boolean isQualifier = arg.startsWith("-");
if (isQualifier)
{
if (qualifier != null) unqualifiedArgs.add(qualifier);
qualifier = arg;
}
else if (qualifier != null)
{
Start.addArg(qualifiedArgs, qualifier, arg);
qualifier = null;
}
else
{
unqualifiedArgs.add(arg);
}
}
if (qualifier != null) unqualifiedArgs.add(qualifier);
}
private static void addRequiredArgsClient(String[] args, List<String> unqualifiedArgs, Map<String, Set<String>> qualifiedArgs)
{
LoginManager loginManager = Start.doLogin(qualifiedArgs);
File gameDir = new File(System.getProperty("user.dir"));
File assetsDir = new File(gameDir, "assets");
File assetIndexDir = new File(assetsDir, "indexes");
Start.addArg(qualifiedArgs, "--tweakClass", LiteLoaderTweaker.class.getName());
Start.addArg(qualifiedArgs, "--username", loginManager.getProfileName());
Start.addArg(qualifiedArgs, "--uuid", loginManager.getUUID());
Start.addArg(qualifiedArgs, "--accessToken", loginManager.getAuthenticatedToken());
Start.addArg(qualifiedArgs, "--userType", loginManager.getUserType());
Start.addArg(qualifiedArgs, "--userProperties", loginManager.getUserProperties());
Start.addArg(qualifiedArgs, "--version", "mcp", true);
Start.addArg(qualifiedArgs, "--gameDir", gameDir.getAbsolutePath(), true);
Start.addArg(qualifiedArgs, "--assetIndex", LiteLoaderTweaker.VERSION, true);
Start.addArg(qualifiedArgs, "--assetsDir", assetsDir.getAbsolutePath(), !assetIndexDir.exists());
}
private static void addRequiredArgsServer(String[] args, List<String> unqualifiedArgs, Map<String, Set<String>> qualifiedArgs)
{
File gameDir = new File(System.getProperty("user.dir"));
Start.addArg(qualifiedArgs, "--tweakClass", LiteLoaderTweakerServer.class.getName());
Start.addArg(qualifiedArgs, "--version", "mcp");
Start.addArg(qualifiedArgs, "--gameDir", gameDir.getAbsolutePath());
}
private static LoginManager doLogin(Map<String, Set<String>> qualifiedArgs)
{
File loginJson = new File(new File(System.getProperty("user.dir")), ".auth.json");
LoginManager loginManager = new LoginManager(loginJson);
String usernameFromCmdLine = Start.getArg(qualifiedArgs, "--username");
String passwordFromCmdLine = Start.getArg(qualifiedArgs, "--password");
loginManager.login(usernameFromCmdLine, passwordFromCmdLine, Start.LOGIN_RETRIES);
LiteLoaderLogger.info("Launching game as %s", loginManager.getProfileName());
return loginManager;
}
private static void addArg(Map<String, Set<String>> qualifiedArgs, String qualifier, String arg)
{
Start.addArg(qualifiedArgs, qualifier, arg, false);
}
private static void addArg(Map<String, Set<String>> qualifiedArgs, String qualifier, String arg, boolean skipExisting)
{
Set<String> args = qualifiedArgs.get(qualifier);
if (args == null)
{
args = new HashSet<String>();
qualifiedArgs.put(qualifier, args);
}
else if (skipExisting)
{
return;
}
if (!Start.MULTI_VALUE_ARGS.contains(qualifier))
{
args.clear();
}
args.add(arg);
}
private static String getArg(Map<String, Set<String>> qualifiedArgs, String arg)
{
if (qualifiedArgs.containsKey(arg))
{
return qualifiedArgs.get(arg).iterator().next();
}
return null;
}
private static String[] combineArgs(String[] args, List<String> unqualifiedArgs, Map<String, Set<String>> qualifiedArgs)
{
for (Entry<String, Set<String>> qualifiedArg : qualifiedArgs.entrySet())
{
for (String argValue : qualifiedArg.getValue())
{
unqualifiedArgs.add(qualifiedArg.getKey());
if (!Strings.isNullOrEmpty(argValue)) unqualifiedArgs.add(argValue);
}
}
return unqualifiedArgs.toArray(args);
}
}