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package cc.polyfrost.oneconfigloader;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import net.minecraft.launchwrapper.Launch;
import net.minecraftforge.fml.relauncher.IFMLLoadingPlugin;
import javax.net.ssl.HttpsURLConnection;
import java.io.*;
import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLClassLoader;
import java.net.URLConnection;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Map;
public class OneConfigLoader implements IFMLLoadingPlugin {
private IFMLLoadingPlugin OneConfigTransformer = null;
public OneConfigLoader() {
File oneConfigDir = new File(Launch.minecraftHome, "OneConfig");
if (!oneConfigDir.exists() && !oneConfigDir.mkdir())
throw new IllegalStateException("Could not create OneConfig dir!");
File oneConfigFile = new File(oneConfigDir, "OneConfig (1.8.9).jar");
if (!isInitialized(oneConfigFile)) {
JsonElement json = getRequest("https://polyfrost.cc/static/oneconfig-versions.json");
if (json != null && json.isJsonObject()) {
JsonObject jsonObject = json.getAsJsonObject();
if (jsonObject.has("oneconfig") && jsonObject.getAsJsonObject("oneconfig").has("url")
&& jsonObject.getAsJsonObject("oneconfig").has("checksum")) {
String checksum = jsonObject.getAsJsonObject("oneconfig").get("checksum").getAsString();
String downloadUrl = jsonObject.getAsJsonObject("oneconfig").get("url").getAsString();
if (!oneConfigFile.exists() || !checksum.equals(getChecksum(oneConfigFile))) {
System.out.println("Updating OneConfig...");
File newOneConfigFile = new File(oneConfigDir, "OneConfig-NEW (1.8.9).jar");
downloadFile(downloadUrl, newOneConfigFile);
if (newOneConfigFile.exists() && checksum.equals(getChecksum(newOneConfigFile))) {
try {
Files.move(newOneConfigFile.toPath(), oneConfigFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
System.out.println("Updated OneConfig");
} catch (IOException ignored) {}
} else {
if (newOneConfigFile.exists()) newOneConfigFile.delete();
System.out.println("Failed to update OneConfig, trying to continue...");
}
}
}
}
if (!oneConfigFile.exists()) throw new IllegalStateException("OneConfig jar doesn't exist");
addToClasspath(oneConfigFile);
}
try {
OneConfigTransformer = ((IFMLLoadingPlugin) Launch.classLoader.findClass("cc.polyfrost.oneconfig.lwjgl.plugin.LoadingPlugin").newInstance());
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException e) {
throw new RuntimeException(e);
}
}
private boolean isInitialized(File file) {
try {
URL url = file.toURI().toURL();
return Arrays.asList(((URLClassLoader) Launch.classLoader.getClass().getClassLoader()).getURLs()).contains(url);
} catch (MalformedURLException e) {
e.printStackTrace();
}
return false;
}
private void addToClasspath(File file) {
try {
URL url = file.toURI().toURL();
Launch.classLoader.addURL(url);
ClassLoader classLoader = Launch.classLoader.getClass().getClassLoader();
Method method = URLClassLoader.class.getDeclaredMethod("addURL", URL.class);
method.setAccessible(true);
method.invoke(classLoader, url);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
private void downloadFile(String url, File location) {
try {
URLConnection con = new URL(url).openConnection();
con.setUseCaches(false);
con.setRequestProperty("User-Agent", "OneConfig-Loader");
InputStream in = con.getInputStream();
Files.copy(in, location.toPath(), StandardCopyOption.REPLACE_EXISTING);
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
private static JsonElement getRequest(String site) {
try {
URL url = new URL(site);
HttpsURLConnection con = (HttpsURLConnection) url.openConnection();
con.setRequestMethod("GET");
int status = con.getResponseCode();
if (status != 200) {
System.out.println("API request failed, status code " + status);
return null;
}
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
String inputLine;
StringBuilder content = new StringBuilder();
while ((inputLine = in.readLine()) != null) {
content.append(inputLine);
}
in.close();
JsonParser parser = new JsonParser();
return parser.parse(content.toString());
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
private String getChecksum(File file) {
try (FileInputStream in = new FileInputStream(file)) {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] buffer = new byte[1024];
int count;
while ((count = in.read(buffer)) != -1) {
digest.update(buffer, 0, count);
}
byte[] digested = digest.digest();
StringBuilder sb = new StringBuilder();
for (byte b : digested) {
sb.append(Integer.toString((b & 0xff) + 0x100, 16).substring(1));
}
return sb.toString();
} catch (IOException | NoSuchAlgorithmException e) {
e.printStackTrace();
}
return "";
}
@Override
public String[] getASMTransformerClass() {
return OneConfigTransformer == null ? null : OneConfigTransformer.getASMTransformerClass();
}
@Override
public String getModContainerClass() {
return OneConfigTransformer == null ? null : OneConfigTransformer.getModContainerClass();
}
@Override
public String getSetupClass() {
return OneConfigTransformer == null ? null : OneConfigTransformer.getSetupClass();
}
@Override
public void injectData(Map<String, Object> data) {
if (OneConfigTransformer != null) OneConfigTransformer.injectData(data);
}
@Override
public String getAccessTransformerClass() {
return OneConfigTransformer == null ? null : OneConfigTransformer.getAccessTransformerClass();
}
}
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