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package cuchaz.enigma;
import java.io.File;
import java.io.FileReader;
import java.util.jar.JarFile;
import cuchaz.enigma.Deobfuscator.ProgressListener;
import cuchaz.enigma.mapping.Mappings;
import cuchaz.enigma.mapping.MappingsReader;
public class CommandMain {
public static class ConsoleProgressListener implements ProgressListener {
private static final int ReportTime = 5000; // 5s
private int m_totalWork;
private long m_startTime;
private long m_lastReportTime;
@Override
public void init(int totalWork, String title) {
m_totalWork = totalWork;
m_startTime = System.currentTimeMillis();
m_lastReportTime = m_startTime;
System.out.println(title);
}
@Override
public void onProgress(int numDone, String message) {
long now = System.currentTimeMillis();
boolean isLastUpdate = numDone == m_totalWork;
boolean shouldReport = isLastUpdate || now - m_lastReportTime > ReportTime;
if (shouldReport) {
int percent = numDone*100/m_totalWork;
System.out.println(String.format("\tProgress: %3d%%", percent));
m_lastReportTime = now;
}
if (isLastUpdate) {
double elapsedSeconds = (now - m_startTime)/1000;
System.out.println(String.format("Finished in %.1f seconds", elapsedSeconds));
}
}
}
public static void main(String[] args)
throws Exception {
try {
// process the command
String command = getArg(args, 0, "command");
if (command.equalsIgnoreCase("deobfuscate")) {
deobfuscate(args);
} else if(command.equalsIgnoreCase("decompile")) {
decompile(args);
} else {
throw new IllegalArgumentException("Command not recognized: " + command);
}
} catch (IllegalArgumentException ex) {
System.out.println(ex.getMessage());
printHelp();
}
}
private static void printHelp() {
System.out.println(String.format("%s - %s", Constants.Name, Constants.Version));
System.out.println("Usage:");
System.out.println("\tjava -cp enigma.jar cuchaz.enigma.CommandMain <command>");
System.out.println("\twhere <command> is one of:");
System.out.println("\t\tdeobfuscate <mappings file> <in jar> <out jar>");
System.out.println("\t\tdecompile <mappings file> <in jar> <out folder>");
}
private static void decompile(String[] args)
throws Exception {
File fileMappings = getReadableFile(getArg(args, 1, "mappings file"));
File fileJarIn = getReadableFile(getArg(args, 2, "in jar"));
File fileJarOut = getWritableFolder(getArg(args, 3, "out folder"));
Deobfuscator deobfuscator = getDeobfuscator(fileMappings, new JarFile(fileJarIn));
deobfuscator.writeSources(fileJarOut, new ConsoleProgressListener());
}
private static void deobfuscate(String[] args)
throws Exception {
File fileMappings = getReadableFile(getArg(args, 1, "mappings file"));
File fileJarIn = getReadableFile(getArg(args, 2, "in jar"));
File fileJarOut = getWritableFile(getArg(args, 3, "out jar"));
Deobfuscator deobfuscator = getDeobfuscator(fileMappings, new JarFile(fileJarIn));
deobfuscator.writeJar(fileJarOut, new ConsoleProgressListener());
}
private static Deobfuscator getDeobfuscator(File fileMappings, JarFile jar)
throws Exception {
System.out.println("Reading mappings...");
Mappings mappings = new MappingsReader().read(new FileReader(fileMappings));
System.out.println("Reading jar...");
Deobfuscator deobfuscator = new Deobfuscator(jar);
deobfuscator.setMappings(mappings);
return deobfuscator;
}
private static String getArg(String[] args, int i, String name) {
if (i >= args.length) {
throw new IllegalArgumentException(name + " is required");
}
return args[i];
}
private static File getWritableFile(String path) {
File file = new File(path).getAbsoluteFile();
File dir = file.getParentFile();
if (dir == null || !dir.exists()) {
throw new IllegalArgumentException("Cannot write to folder: " + file);
}
return file;
}
private static File getWritableFolder(String path) {
File dir = new File(path).getAbsoluteFile();
if (!dir.exists()) {
throw new IllegalArgumentException("Cannot write to folder: " + dir);
}
return dir;
}
private static File getReadableFile(String path) {
File file = new File(path).getAbsoluteFile();
if (!file.exists()) {
throw new IllegalArgumentException("Cannot find file: " + file.getAbsolutePath());
}
return file;
}
}
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