package net.minecraftforge.gradle;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import joptsimple.NonOptionArgumentSpec;
import joptsimple.OptionParser;
import joptsimple.OptionSet;
import net.minecraft.launchwrapper.IClassTransformer;
import net.minecraft.launchwrapper.Launch;
import net.minecraft.launchwrapper.LaunchClassLoader;
import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import com.google.common.base.Charsets;
import com.google.common.base.Joiner;
import com.google.common.base.Splitter;
import com.google.common.base.Strings;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.google.common.io.Files;
public abstract class GradleStartCommon
{
protected static Logger LOGGER = LogManager.getLogger("GradleStart");
private static final String NO_CORE_SEARCH = "noCoreSearch";
private Map<String, String> argMap = Maps.newHashMap();
private List<String> extras = Lists.newArrayList();
private static final File SRG_DIR = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs");
private static final File SRG_NOTCH_SRG = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs/notch-srg.srg");
private static final File SRG_NOTCH_MCP = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs/notch-mcp.srg");
private static final File SRG_SRG_MCP = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs/srg-mcp.srg");
private static final File SRG_MCP_SRG = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs/mcp-srg.srg");
private static final File SRG_MCP_NOTCH = new File("C:/Users/Aaron/.gradle/caches/minecraft/net/minecraftforge/forge/1.7.10-10.13.4.1492-1.7.10/stable/12/srgs/mcp-notch.srg");
private static final File CSV_DIR = new File("C:/Users/Aaron/.gradle/caches/minecraft/de/oceanlabs/mcp/mcp_stable/12");
protected abstract void setDefaultArguments(Map<String, String> argMap);
protected abstract void preLaunch(Map<String, String> argMap, List<String> extras);
protected abstract String getBounceClass();
protected abstract String getTweakClass();
protected void launch(String[] args) throws Throwable
{
// DEPRECATED, use the properties below instead!
System.setProperty("net.minecraftforge.gradle.GradleStart.srgDir", SRG_DIR.getCanonicalPath());
// set system vars for passwords
System.setProperty("net.minecraftforge.gradle.GradleStart.srg.notch-srg", SRG_NOTCH_SRG.getCanonicalPath());
System.setProperty("net.minecraftforge.gradle.GradleStart.srg.notch-mcp", SRG_NOTCH_MCP.getCanonicalPath());
System.setProperty("net.minecraftforge.gradle.GradleStart.srg.srg-mcp", SRG_SRG_MCP.getCanonicalPath());
System.setProperty("net.minecraftforge.gradle.GradleStart.srg.mcp-srg", SRG_MCP_SRG.getCanonicalPath());
System.setProperty("net.minecraftforge.gradle.GradleStart.srg.mcp-notch", SRG_MCP_NOTCH.getCanonicalPath());
System.setProperty("net.minecraftforge.gradle.GradleStart.csvDir", CSV_DIR.getCanonicalPath());
// set defaults!
setDefaultArguments(argMap);
// parse stuff
parseArgs(args);
// now send it back for prelaunch
preLaunch(argMap, extras);
// because its the dev env.
System.setProperty("fml.ignoreInvalidMinecraftCertificates", "true"); // cant hurt. set it now.
// coremod searching.
if (argMap.get(NO_CORE_SEARCH) == null)
searchCoremods();
else
LOGGER.info("GradleStart coremod searching disabled!");
// now the actual launch args.
args = getArgs();
// clear it out
argMap = null;
extras = null;
// launch.
System.gc();
String bounce = getBounceClass(); // marginally faster. And we need the launch wrapper anyways.
if (bounce.endsWith("launchwrapper.Launch"))
Launch.main(args);
else
Class.forName(getBounceClass()).getDeclaredMethod("main", String[].class).invoke(null, new Object[] { args });
}
private String[] getArgs()
{
ArrayList<String> list = new ArrayList<String>(22);
for (Map.Entry<String, String> e : argMap.entrySet())
{
String val = e.getValue();
if (!Strings.isNullOrEmpty(val))
{
list.add("--" + e.getKey());
list.add(val);
}
}
// grab tweakClass
if (!Strings.isNullOrEmpty(getTweakClass()))
{
list.add("--tweakClass");
list.add(getTweakClass());
}
if (extras != null)
{
list.addAll(extras);
}
String[] out = list.toArray(new String[0]);
// final logging.
StringBuilder b = new StringBuilder();
b.append('[');
for (int x = 0; x < out.length; x++)
{
b.append(out[x]).append(", ");
if ("--accessToken".equalsIgnoreCase(out[x]))
{
b.append("{REDACTED}, ");
x++;
}
}
b.replace(b.length() - 2, b.length(), "");
b.append(']');
GradleStartCommon.LOGGER.info("Running with arguments: " + b.toString());
return out;
}
private void parseArgs(String[] args)
{
final OptionParser parser = new OptionParser();
parser.allowsUnrecognizedOptions();
for (String key : argMap.keySet())
{
parser.accepts(key).withRequiredArg().ofType(String.class);
}
// accept the noCoreSearch thing
parser.accepts(NO_CORE_SEARCH);
final NonOptionArgumentSpec<String> nonOption = parser.nonOptions();
final OptionSet options = parser.parse(args);
for (String key : argMap.keySet())
{
if (options.hasArgument(key))
{
String value = (String) options.valueOf(key);
argMap.put(key, value);
if (!"password".equalsIgnoreCase(key))
LOGGER.info(key + ": " + value);
}
}
if (options.has(NO_CORE_SEARCH))
argMap.put(NO_CORE_SEARCH, "");
extras = Lists.newArrayList(nonOption.values(options));
LOGGER.info("Extra: " + extras);
}
/* ----------- REFLECTION HELPER --------- */
private static final String MC_VERSION = "1.7.10";
private static final String FML_PACK_OLD = "cpw.mods";
private static final String FML_PACK_NEW = "net.minecraftforge";
@SuppressWarnings("rawtypes")
protected static Class getFmlClass(String classname) throws ClassNotFoundException
{
return getFmlClass(classname, GradleStartCommon.class.getClassLoader());
}
@SuppressWarnings("rawtypes")
public static Class getFmlClass(String classname, ClassLoader loader) throws ClassNotFoundException
{
if (!classname.startsWith("fml")) // dummy check myself
throw new IllegalArgumentException("invalid FML classname");
if (MC_VERSION.startsWith("1.7"))
classname = FML_PACK_OLD + "." + classname;
else
classname = FML_PACK_NEW + "." + classname;
return Class.forName(classname, true, loader);
}
/* ----------- COREMOD AND AT HACK --------- */
// coremod hack
private static final String COREMOD_VAR = "fml.coreMods.load";
private static final String COREMOD_MF = "FMLCorePlugin";
// AT hack
private static final String MOD_ATD_CLASS = "fml.common.asm.transformers.ModAccessTransformer";
private static final String MOD_AT_METHOD = "addJar";
public static final Map<String, File> coreMap = Maps.newHashMap();
@SuppressWarnings("unchecked")
private void searchCoremods() throws Exception
{
// intialize AT hack Method
Method atRegistrar = null;
try
{
atRegistrar = getFmlClass(MOD_ATD_CLASS).getDeclaredMethod(MOD_AT_METHOD, JarFile.class);
}
catch (Throwable t)
{}
for (URL url : ((URLClassLoader) GradleStartCommon.class.getClassLoader()).getURLs())
{
if (!url.getProtocol().startsWith("file")) // because file urls start with file://
continue; // this isnt a file
File coreMod = new File(url.toURI().getPath());
Manifest manifest = null;
if (!coreMod.exists())
continue;
if (coreMod.isDirectory())
{
File manifestMF = new File(coreMod, "META-INF/MANIFEST.MF");
if (manifestMF.exists())
{
FileInputStream stream = new FileInputStream(manifestMF);
manifest = new Manifest(stream);
stream.close();
}
}
else if (coreMod.getName().endsWith("jar")) // its a jar
{
JarFile jar = new JarFile(coreMod);
manifest = jar.getManifest();
if (atRegistrar != null && manifest != null)
atRegistrar.invoke(null, jar);
jar.close();
}
// we got the manifest? use it.
if (manifest != null)
{
String clazz = manifest.getMainAttributes().getValue(COREMOD_MF);
if (!Strings.isNullOrEmpty(clazz))
{
LOGGER.info("Found and added coremod: " + clazz);
coreMap.put(clazz, coreMod);
}
}
}
// set property.
Set<String> coremodsSet = Sets.newHashSet();
if (!Strings.isNullOrEmpty(System.getProperty(COREMOD_VAR)))
coremodsSet.addAll(Splitter.on(',').splitToList(System.getProperty(COREMOD_VAR)));
coremodsSet.addAll(coreMap.keySet());
System.setProperty(COREMOD_VAR, Joiner.on(',').join(coremodsSet));
// ok.. tweaker hack now.
if (!Strings.isNullOrEmpty(getTweakClass()))
{
extras.add("--tweakClass");
extras.add("net.minecraftforge.gradle.tweakers.CoremodTweaker");
}
}
/* ----------- CUSTOM TWEAKER FOR COREMOD HACK --------- */
// here and not in the tweaker package because classloader hell
public static final class AccessTransformerTransformer implements IClassTransformer
{
public AccessTransformerTransformer()
{
doStuff((LaunchClassLoader) getClass().getClassLoader());
}
@SuppressWarnings({ "rawtypes", "unchecked" })
private void doStuff(LaunchClassLoader classloader)
{
// the class and instance of ModAccessTransformer
Class<? extends IClassTransformer> clazz = null;
IClassTransformer instance = null;
// find the instance I want. AND grab the type too, since thats better than Class.forName()
for (IClassTransformer transformer : classloader.getTransformers())
{
if (transformer.getClass().getCanonicalName().endsWith(MOD_ATD_CLASS))
{
clazz = transformer.getClass();
instance = transformer;
}
}
// impossible! but i will ignore it.
if (clazz == null || instance == null)
{
LOGGER.log(Level.ERROR, "ModAccessTransformer was somehow not found.");
return;
}
// grab the list of Modifiers I wanna mess with
Collection<Object> modifiers = null;
try
{
// super class of ModAccessTransformer is AccessTransformer
Field f = clazz.getSuperclass().getDeclaredFields()[1]; // its the modifiers map. Only non-static field there.
f.setAccessible(true);
modifiers = ((com.google.common.collect.Multimap) f.get(instance)).values();
}
catch (Throwable t)
{
LOGGER.log(Level.ERROR, "AccessTransformer.modifiers field was somehow not found...");
return;
}
if (modifiers.isEmpty())
{
return; // hell no am I gonna do stuff if its empty..
}
// grab the field I wanna hack
Field nameField = null;
try
{
// get 1 from the collection
Object mod = null;
for (Object val : modifiers)
{
mod = val;
break;
} // i wish this was cleaner
nameField = mod.getClass().getFields()[0]; // first field. "name"
nameField.setAccessible(true); // its alreadypublic, but just in case
}
catch (Throwable t)
{
LOGGER.log(Level.ERROR, "AccessTransformer.Modifier.name field was somehow not found...");
return;
}
// read the field and method CSV files.
Map<String, String> nameMap = Maps.newHashMap();
try
{
readCsv(new File(CSV_DIR, "fields.csv"), nameMap);
readCsv(new File(CSV_DIR, "methods.csv"), nameMap);
}
catch (IOException e)
{
// If I cant find these.. something is terribly wrong.
LOGGER.log(Level.ERROR, "Could not load CSV files!");
e.printStackTrace();
return;
}
LOGGER.log(Level.INFO, "Remapping AccessTransformer rules...");
// finally hit the modifiers
for (Object modifier : modifiers) // these are instances of AccessTransformer.Modifier
{
String name;
try
{
name = (String) nameField.get(modifier);
String newName = nameMap.get(name);
if (newName != null)
{
nameField.set(modifier, newName);
}
}
catch (Exception e)
{
// impossible. It would have failed earlier if possible.
}
}
}
private void readCsv(File file, Map<String, String> map) throws IOException
{
LOGGER.log(Level.DEBUG, "Reading CSV file: {}", file);
Splitter split = Splitter.on(',').trimResults().limit(3);
for (String line : Files.readLines(file, Charsets.UTF_8))
{
if (line.startsWith("searge")) // header line
continue;
List<String> splits = split.splitToList(line);
map.put(splits.get(0), splits.get(1));
}
}
@Override
public byte[] transform(String name, String transformedName, byte[] basicClass)
{
return basicClass; // nothing here
}
}
}