package codechicken.core.launch;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import cpw.mods.fml.common.versioning.ComparableVersion;
import cpw.mods.fml.relauncher.FMLInjectionData;
import cpw.mods.fml.relauncher.FMLLaunchHandler;
import cpw.mods.fml.relauncher.IFMLCallHook;
import cpw.mods.fml.relauncher.IFMLLoadingPlugin;
import net.minecraft.launchwrapper.LaunchClassLoader;
import sun.misc.URLClassPath;
import sun.net.util.URLUtil;
import javax.swing.*;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import java.awt.*;
import java.awt.Dialog.ModalityType;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.io.*;
import java.lang.reflect.Field;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLConnection;
import java.nio.ByteBuffer;
import java.util.*;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.regex.PatternSyntaxException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* For autodownloading stuff.
* This is really unoriginal, mostly ripped off FML, credits to cpw.
*/
public class DepLoader implements IFMLLoadingPlugin, IFMLCallHook {
private static ByteBuffer downloadBuffer = ByteBuffer.allocateDirect(1 << 23);
private static final String owner = "CB's DepLoader";
private static DepLoadInst inst;
public interface IDownloadDisplay {
void resetProgress(int sizeGuess);
void setPokeThread(Thread currentThread);
void updateProgress(int fullLength);
boolean shouldStopIt();
void updateProgressString(String string, Object... data);
Object makeDialog();
void showErrorDialog(String name, String url);
}
@SuppressWarnings("serial")
public static class Downloader extends JOptionPane implements IDownloadDisplay {
private JDialog container;
private JLabel currentActivity;
private JProgressBar progress;
boolean stopIt;
Thread pokeThread;
private Box makeProgressPanel() {
Box box = Box.createVerticalBox();
box.add(Box.createRigidArea(new Dimension(0, 10)));
JLabel welcomeLabel = new JLabel("<html><b><font size='+1'>" + owner + " is setting up your minecraft environment</font></b></html>");
box.add(welcomeLabel);
welcomeLabel.setAlignmentY(LEFT_ALIGNMENT);
welcomeLabel = new JLabel("<html>Please wait, " + owner + " has some tasks to do before you can play</html>");
welcomeLabel.setAlignmentY(LEFT_ALIGNMENT);
box.add(welcomeLabel);
box.add(Box.createRigidArea(new Dimension(0, 10)));
currentActivity = new JLabel("Currently doing ...");
box.add(currentActivity);
box.add(Box.createRigidArea(new Dimension(0, 10)));
progress = new JProgressBar(0, 100);
progress.setStringPainted(true);
box.add(progress);
box.add(Box.createRigidArea(new Dimension(0, 30)));
return box;
}
@Override
public JDialog makeDialog() {
if (container != null)
return container;
setMessageType(JOptionPane.INFORMATION_MESSAGE);
setMessage(makeProgressPanel());
setOptions(new Object[]{"Stop"});
addPropertyChangeListener(new PropertyChangeListener() {
@Override
public void propertyChange(PropertyChangeEvent evt) {
if (evt.getSource() == Downloader.this && evt.getPropertyName() == VALUE_PROPERTY) {
requestClose("This will stop minecraft from launching\nAre you sure you want to do this?");
}
}
});
container = new JDialog(null, "Hello", ModalityType.MODELESS);
container.setResizable(false);
container.setLocationRelativeTo(null);
container.add(this);
this.updateUI();
container.pack();
container.setMinimumSize(container.getPreferredSize());
container.setVisible(true);
container.setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
container.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
requestClose("Closing this window will stop minecraft from launching\nAre you sure you wish to do this?");
}
});
return container;
}
protected void requestClose(String message) {
int shouldClose = JOptionPane.showConfirmDialog(container, message, "Are you sure you want to stop?", JOptionPane.YES_NO_OPTION, JOptionPane.WARNING_MESSAGE);
if (shouldClose == JOptionPane.YES_OPTION)
container.dispose();
stopIt = true;
if (pokeThread != null)
pokeThread.interrupt();
}
@Override
public void updateProgressString(String progressUpdate, Object... data) {
//FMLLog.finest(progressUpdate, data);
if (currentActivity != null)
currentActivity.setText(String.format(progressUpdate, data));
}
@Override
public void resetProgress(int sizeGuess) {
if (progress != null)
progress.getModel().setRangeProperties(0, 0, 0, sizeGuess, false);
}
@Override
public void updateProgress(int fullLength) {
if (progress != null)
progress.getModel().setValue(fullLength);
}
@Override
public void setPokeThread(Thread currentThread) {
this.pokeThread = currentThread;
}
@Override
public boolean shouldStopIt() {
return stopIt;
}
@Override
public void showErrorDialog(String name, String url) {
JEditorPane ep = new JEditorPane("text/html",
"<html>" +
owner + " was unable to download required library " + name +
"<br>Check your internet connection and try restarting or download it manually from" +
"<br><a href=\"" + url + "\">" + url + "</a> and put it in your mods folder" +
"</html>");
ep.setEditable(false);
ep.setOpaque(false);
ep.addHyperlinkListener(new HyperlinkListener() {
@Override
public void hyperlinkUpdate(HyperlinkEvent event) {
try {
if (event.getEventType().equals(HyperlinkEvent.EventType.ACTIVATED))
Desktop.getDesktop().browse(event.getURL().toURI());
} catch (Exception e) {
}
}
});
JOptionPane.showMessageDialog(null, ep, "A download error has occured", JOptionPane.ERROR_MESSAGE);
}
}
public static class DummyDownloader implements IDownloadDisplay {
@Override
public void resetProgress(int sizeGuess) {
}
@Override
public void setPokeThread(Thread currentThread) {
}
@Override
public void updateProgress(int fullLength) {
}
@Override
public boolean shouldStopIt() {
return false;
}
@Override
public void updateProgressString(String string, Object... data) {
}
@Override
public Object makeDialog() {
return null;
}
@Override
public void showErrorDialog(String name, String url) {
}
}
public static class VersionedFile
{
public final Pattern pattern;
public final String filename;
public final ComparableVersion version;
public final String name;
public VersionedFile(String filename, Pattern pattern) {
this.pattern = pattern;
this.filename = filename;
Matcher m = pattern.matcher(filename);
if(m.matches()) {
name = m.group(1);
version = new ComparableVersion(m.group(2));
}
else {
name = null;
version = null;
}
}
public boolean matches() {
return name != null;
}
}
public static class Dependency
{
public String url;
public VersionedFile file;
public String existing;
/**
* Flag set to add this dep to the classpath immediately because it is required for a coremod.
*/
public boolean coreLib;
public Dependency(String url, VersionedFile file, boolean coreLib) {
this.url = url;
this.file = file;
this.coreLib = coreLib;
}
}
public static class DepLoadInst {
private File modsDir;
private File v_modsDir;
private IDownloadDisplay downloadMonitor;
private JDialog popupWindow;
private Map<String, Dependency> depMap = new HashMap<String, Dependency>();
private HashSet<String> depSet = new HashSet<String>();
public DepLoadInst() {
String mcVer = (String) FMLInjectionData.data()[4];
File mcDir = (File) FMLInjectionData.data()[6];
modsDir = new File(mcDir, "mods");
v_modsDir = new File(mcDir, "mods/" + mcVer);
if (!v_modsDir.exists())
v_modsDir.mkdirs();
}
private void addClasspath(String name) {
try {
((LaunchClassLoader) DepLoader.class.getClassLoader()).addURL(new File(v_modsDir, name).toURI().toURL());
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
private void deleteMod(File mod) {
if (mod.delete())
return;
try {
ClassLoader cl = DepLoader.class.getClassLoader();
URL url = mod.toURI().toURL();
Field f_ucp = URLClassLoader.class.getDeclaredField("ucp");
Field f_loaders = URLClassPath.class.getDeclaredField("loaders");
Field f_lmap = URLClassPath.class.getDeclaredField("lmap");
f_ucp.setAccessible(true);
f_loaders.setAccessible(true);
f_lmap.setAccessible(true);
URLClassPath ucp = (URLClassPath) f_ucp.get(cl);
Closeable loader = ((Map<String, Closeable>) f_lmap.get(ucp)).remove(URLUtil.urlNoFragString(url));
if (loader != null) {
loader.close();
((List<?>) f_loaders.get(ucp)).remove(loader);
}
} catch (Exception e) {
e.printStackTrace();
}
if (!mod.delete()) {
mod.deleteOnExit();
String msg = owner + " was unable to delete file " + mod.getPath() + " the game will now try to delete it on exit. If this dialog appears again, delete it manually.";
System.err.println(msg);
if (!GraphicsEnvironment.isHeadless())
JOptionPane.showMessageDialog(null, msg, "An update error has occured", JOptionPane.ERROR_MESSAGE);
System.exit(1);
}
}
private void download(Dependency dep) {
popupWindow = (JDialog) downloadMonitor.makeDialog();
File libFile = new File(v_modsDir, dep.file.filename);
try {
URL libDownload = new URL(dep.url + '/' + dep.file.filename);
downloadMonitor.updateProgressString("Downloading file %s", libDownload.toString());
System.out.format("Downloading file %s\n", libDownload.toString());
URLConnection connection = libDownload.openConnection();
connection.setConnectTimeout(5000);
connection.setReadTimeout(5000);
connection.setRequestProperty("User-Agent", "" + owner + " Downloader");
int sizeGuess = connection.getContentLength();
download(connection.getInputStream(), sizeGuess, libFile);
downloadMonitor.updateProgressString("Download complete");
System.out.println("Download complete");
scanDepInfo(libFile);
} catch (Exception e) {
libFile.delete();
if (downloadMonitor.shouldStopIt()) {
System.err.println("You have stopped the downloading operation before it could complete");
System.exit(1);
return;
}
downloadMonitor.showErrorDialog(dep.file.filename, dep.url + '/' + dep.file.filename);
throw new RuntimeException("A download error occured", e);
}
}
private void download(InputStream is, int sizeGuess, File target) throws Exception {
if (sizeGuess > downloadBuffer.capacity())
throw new Exception(String.format("The file %s is too large to be downloaded by " + owner + " - the download is invalid", target.getName()));
downloadBuffer.clear();
int bytesRead, fullLength = 0;
downloadMonitor.resetProgress(sizeGuess);
try {
downloadMonitor.setPokeThread(Thread.currentThread());
byte[] smallBuffer = new byte[1024];
while ((bytesRead = is.read(smallBuffer)) >= 0) {
downloadBuffer.put(smallBuffer, 0, bytesRead);
fullLength += bytesRead;
if (downloadMonitor.shouldStopIt()) {
break;
}
downloadMonitor.updateProgress(fullLength);
}
is.close();
downloadMonitor.setPokeThread(null);
downloadBuffer.limit(fullLength);
downloadBuffer.position(0);
} catch (InterruptedIOException e) {
// We were interrupted by the stop button. We're stopping now.. clear interruption flag.
Thread.interrupted();
throw new Exception("Stop");
} catch (IOException e) {
throw e;
}
try {
/*String cksum = generateChecksum(downloadBuffer);
if (cksum.equals(validationHash))
{*/
if (!target.exists())
target.createNewFile();
downloadBuffer.position(0);
FileOutputStream fos = new FileOutputStream(target);
fos.getChannel().write(downloadBuffer);
fos.close();
/*}
else
{
throw new RuntimeException(String.format("The downloaded file %s has an invalid checksum %s (expecting %s). The download did not succeed correctly and the file has been deleted. Please try launching again.", target.getName(), cksum, validationHash));
}*/
} catch (Exception e) {
throw e;
}
}
private String checkExisting(Dependency dep) {
for (File f : modsDir.listFiles()) {
VersionedFile vfile = new VersionedFile(f.getName(), dep.file.pattern);
if (!vfile.matches() || !vfile.name.equals(dep.file.name))
continue;
if (f.renameTo(new File(v_modsDir, f.getName())))
continue;
deleteMod(f);
}
for (File f : v_modsDir.listFiles()) {
VersionedFile vfile = new VersionedFile(f.getName(), dep.file.pattern);
if (!vfile.matches() || !vfile.name.equals(dep.file.name))
continue;
int cmp = vfile.version.compareTo(dep.file.version);
if (cmp < 0) {
System.out.println("Deleted old version " + f.getName());
deleteMod(f);
return null;
}
if (cmp > 0) {
System.err.println("Warning: version of " + dep.file.name + ", " + vfile.version + " is newer than request " + dep.file.version);
return f.getName();
}
return f.getName();//found dependency
}
return null;
}
public void load() {
scanDepInfos();
if (depMap.isEmpty())
return;
loadDeps();
activateDeps();
}
private void activateDeps() {
for (Dependency dep : depMap.values())
if (dep.coreLib)
addClasspath(dep.existing);
}
private void loadDeps() {
downloadMonitor = FMLLaunchHandler.side().isClient() ? new Downloader() : new DummyDownloader();
try {
while (!depSet.isEmpty()) {
Iterator<String> it = depSet.iterator();
Dependency dep = depMap.get(it.next());
it.remove();
load(dep);
}
} finally {
if (popupWindow != null) {
popupWindow.setVisible(false);
popupWindow.dispose();
}
}
}
private void load(Dependency dep) {
dep.existing = checkExisting(dep);
if (dep.existing == null)//download dep
{
download(dep);
dep.existing = dep.file.filename;
}
}
private List<File> modFiles() {
List<File> list = new LinkedList<File>();
list.addAll(Arrays.asList(modsDir.listFiles()));
list.addAll(Arrays.asList(v_modsDir.listFiles()));
return list;
}
private void scanDepInfos() {
for (File file : modFiles()) {
if (!file.getName().endsWith(".jar") && !file.getName().endsWith(".zip"))
continue;
scanDepInfo(file);
}
}
private void scanDepInfo(File file) {
try {
ZipFile zip = new ZipFile(file);
ZipEntry e = zip.getEntry("dependancies.info");
if (e == null) e = zip.getEntry("dependencies.info");
if (e != null)
loadJSon(zip.getInputStream(e));
zip.close();
} catch (Exception e) {
System.err.println("Failed to load dependencies.info from " + file.getName() + " as JSON");
e.printStackTrace();
}
}
private void loadJSon(InputStream input) throws IOException {
InputStreamReader reader = new InputStreamReader(input);
JsonElement root = new JsonParser().parse(reader);
if (root.isJsonArray())
loadJSonArr(root);
else
loadJson(root.getAsJsonObject());
reader.close();
}
private void loadJSonArr(JsonElement root) throws IOException {
for (JsonElement node : root.getAsJsonArray())
loadJson(node.getAsJsonObject());
}
private void loadJson(JsonObject node) throws IOException {
boolean obfuscated = ((LaunchClassLoader) DepLoader.class.getClassLoader())
.getClassBytes("net.minecraft.world.World") == null;
String testClass = node.get("class").getAsString();
if (DepLoader.class.getResource("/" + testClass.replace('.', '/') + ".class") != null)
return;
String repo = node.get("repo").getAsString();
String filename = node.get("file").getAsString();
if (!obfuscated && node.has("dev"))
filename = node.get("dev").getAsString();
boolean coreLib = node.has("coreLib") && node.get("coreLib").getAsBoolean();
Pattern pattern = null;
try {
if(node.has("pattern"))
pattern = Pattern.compile(node.get("pattern").getAsString());
} catch (PatternSyntaxException e) {
System.err.println("Invalid filename pattern: "+node.get("pattern"));
e.printStackTrace();
}
if(pattern == null)
pattern = Pattern.compile("(\\w+).*?([\\d\\.]+)[-\\w]*\\.[^\\d]+");
VersionedFile file = new VersionedFile(filename, pattern);
if (!file.matches())
throw new RuntimeException("Invalid filename format for dependency: " + filename);
addDep(new Dependency(repo, file, coreLib));
}
private void addDep(Dependency newDep) {
if (mergeNew(depMap.get(newDep.file.name), newDep)) {
depMap.put(newDep.file.name, newDep);
depSet.add(newDep.file.name);
}
}
private boolean mergeNew(Dependency oldDep, Dependency newDep) {
if (oldDep == null)
return true;
Dependency newest = newDep.file.version.compareTo(oldDep.file.version) > 0 ? newDep : oldDep;
newest.coreLib = newDep.coreLib || oldDep.coreLib;
return newest == newDep;
}
}
public static void load() {
if (inst == null) {
inst = new DepLoadInst();
inst.load();
}
}
@Override
public String[] getASMTransformerClass() {
return null;
}
@Override
public String getModContainerClass() {
return null;
}
@Override
public String getSetupClass() {
return getClass().getName();
}
@Override
public void injectData(Map<String, Object> data) {
}
@Override
public Void call() {
load();
return null;
}
@Override
public String getAccessTransformerClass() {
return null;
}
}
