UserManager.java

package de.maxgb.minecraft.second_screen.data;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;

import net.minecraftforge.common.config.Configuration;
import de.maxgb.minecraft.second_screen.Configs;
import de.maxgb.minecraft.second_screen.util.Constants;
import de.maxgb.minecraft.second_screen.util.Helper;
import de.maxgb.minecraft.second_screen.util.Logger;
import de.maxgb.minecraft.second_screen.util.User;

/**
 * Manages the second screen users
 * @author Max
 *
 */
public class UserManager {
	private static final String TAG = "UserManager";
	private static ArrayList<User> auth_users = new ArrayList<User>();
	private static ArrayList<User> temp_users = new ArrayList<User>();

	public static void addUser(String username, int pass) {
		if (username != null && !username.equals("")) {
			for (User u : auth_users) {
				if (u.username.equals(username)) {
					u.setPassword(pass);
					return;
				}
			}
			auth_users.add(new User(username, pass));
		}

	}

	/**
	 * Returns if the username password combination is correct
	 * 
	 * @param username
	 *            Username
	 * @param password
	 *            Passwordhash
	 * @return
	 */
	public static boolean auth(String username, int pass) {
		User u = getUser(username);
		if (u == null) {
			return false;
		}
		return u.getPassword() == pass;

	}

	/**
	 * Gets the user with the given username
	 * 
	 * @param username
	 * @return
	 */
	public static User getUser(String username) {
		if (Configs.auth_required) {
			for (User u : auth_users) {
				if (u.username.equals(username)) {
					if (Helper.isPlayerOpped(u.username)) {
						u.setAllAllowed(true);
					}
					return u;
				}
			}
			return null;
		}

		User u = new User(username, 0);
		u.setAllAllowed(true);
		temp_users.add(u);
		return u;

	}

	private static File getUsersDir() {
		File dir = new File(DataStorageDriver.getSaveDir(), Constants.USER_SAVE_DIR);
		dir.mkdirs();
		return dir;
	}

	/**
	 * Loads a user from file
	 * 
	 * @param f
	 * @return User or null if unsuccesfull
	 */
	private static User loadUser(File f) {
		Configuration config = new Configuration(f);

		return User.readFromConfig(config);
	}

	public static void loadUsers() {
		auth_users = new ArrayList<User>();
		File dir = getUsersDir();
		File[] files = dir.listFiles();
		for (File f : files) {
			if (f.isFile()) {
				User u = loadUser(f);
				if (u != null) {
					auth_users.add(u);
				}
			}
		}
		Logger.i(TAG, "Loaded " + auth_users.size() + " users");

	}

	private static void saveUser(File f, User u) {

		try {
			f.createNewFile();
			Configuration config = new Configuration(f);
			u.saveToConfig(config);

		} catch (IOException e) {
			Logger.e(TAG, "Failed to create user config for " + u.username);
		}
	}

	public static void saveUsers() {
		for (User u : auth_users) {
			File uf = new File(getUsersDir(), u.username);
			saveUser(uf, u);
		}
	}

}