[17.4k Lines] Added a QR code image to the two factor authentication system

core/build.gradle.kts

@@ -4,4 +4,5 @@ dependencies {
     compileOnly("com.destroystokyo:paperspigot:1.12.2")
     implementation("com.github.cryptomorin:XSeries:7.8.0")
     implementation("com.warrenstrange:googleauth:1.4.0")
+    implementation("com.google.zxing:javase:3.4.1")
 }

core/src/main/java/zone/themcgamer/core/account/MiniAccount.java

@@ -2,7 +2,6 @@ package zone.themcgamer.core.account;
 
 import lombok.Getter;
 import org.bukkit.plugin.java.JavaPlugin;
-import zone.themcgamer.core.account.Account;
 import zone.themcgamer.core.module.Module;
 
 import java.sql.ResultSet;

core/src/main/java/zone/themcgamer/core/twoFactor/TwoFactorAuthentication.java

@@ -1,7 +1,11 @@
 package zone.themcgamer.core.twoFactor;
 
+import com.cryptomorin.xseries.XMaterial;
 import com.cryptomorin.xseries.XSound;
 import com.warrenstrange.googleauth.GoogleAuthenticator;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.ComponentBuilder;
+import net.md_5.bungee.api.chat.HoverEvent;
 import org.bukkit.Bukkit;
 import org.bukkit.Location;
 import org.bukkit.entity.Entity;
@@ -13,13 +17,18 @@ import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.entity.FoodLevelChangeEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.player.*;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.map.MapView;
 import org.bukkit.plugin.java.JavaPlugin;
 import zone.themcgamer.common.EnumUtils;
 import zone.themcgamer.core.account.Account;
 import zone.themcgamer.core.account.AccountManager;
 import zone.themcgamer.core.account.MiniAccount;
+import zone.themcgamer.core.common.ItemBuilder;
 import zone.themcgamer.core.common.Style;
 import zone.themcgamer.core.module.ModuleInfo;
+import zone.themcgamer.core.twoFactor.image.QRImageGenerator;
+import zone.themcgamer.core.twoFactor.image.QRMapRenderer;
 import zone.themcgamer.data.Rank;
 import zone.themcgamer.data.mysql.MySQLController;
 
@@ -109,11 +118,25 @@ public class TwoFactorAuthentication extends MiniAccount<TwoFactorClient> {
                 String secretKey = googleAuthenticator.createCredentials().getKey();
                 twoFactorClient.setSecretKey(secretKey);
 
-                // TODO: 2/20/21 generate a qr map and give it to the player so they can scan it on their twoFactor app
+                // QR Map
+                ItemStack firstSlotItem = player.getInventory().getItem(0);
+                if (firstSlotItem != null)
+                    twoFactorClient.setFirstSlotItem(firstSlotItem);
+
+                // Creating the map
+                Bukkit.getScheduler().runTaskAsynchronously(getPlugin(), new QRImageGenerator(player, twoFactorClient.getSecretKey(), image -> {
+                    MapView mapView = Bukkit.createMap(player.getWorld());
+                    mapView.getRenderers().removeIf(mapView::removeRenderer);
+                    mapView.addRenderer(new QRMapRenderer(player, image));
+                    player.getInventory().setItem(0, new ItemBuilder(XMaterial.FILLED_MAP, 1, (byte) mapView.getId()).toItemStack());
+                    player.getInventory().setHeldItemSlot(0);
+                }));
+
                 player.sendMessage(Style.main(getName(), "Hey §b" + player.getName() + "§7, you have not setup your two factor authentication yet!"));
-                player.sendMessage(Style.main(getName(), "To begin, open your authentication app of choice and insert the secret key"));
+                player.sendMessage(new ComponentBuilder(Style.main(getName(), "To begin, open your authentication app of choice and scan the QR code on the map or enter " +
-                player.sendMessage(Style.main(getName(), "§f" + secretKey));
+                        "the code §6" + secretKey + " §7manually. Once done, type the 6 digit code provided by your authentication app into the chat"))
-                player.sendMessage(Style.main(getName(), "Once done, type the 6 digit code provided by your authentication app into the chat"));
+                        .event(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ComponentBuilder("§aClick to copy").create()))
+                        .event(new ClickEvent(ClickEvent.Action.SUGGEST_COMMAND, secretKey)).create());
                 return;
             }
             player.sendMessage(Style.main(getName(), "§cYou need to re-authenticate!"));
@@ -143,13 +166,16 @@ public class TwoFactorAuthentication extends MiniAccount<TwoFactorClient> {
         }
         TwoFactorClient twoFactorClient = optionalTwoFactorClient.get();
         String secretKey = twoFactorClient.getSecretKey();
-        if (!googleAuthenticator.authorize(secretKey, code))
+        if (!googleAuthenticator.authorize(secretKey, code)) // If the provided code is incorrect, show an error to the player
             player.sendMessage(Style.main(getName(), "§cInvalid authentication code!"));
         else {
+            // If the code is correct, we wanna authenticate the player
             twoFactorClient.setLastAuthentication(System.currentTimeMillis());
             repository.authenticate(optionalAccount.get().getId(), secretKey, twoFactorClient.getLastAuthentication());
             authenticating.remove(player.getUniqueId());
             player.playSound(player.getEyeLocation(), XSound.ENTITY_PLAYER_LEVELUP.parseSound(), 0.9f, 1f);
+            if (twoFactorClient.getFirstSlotItem() != null)
+                player.getInventory().setItem(0, twoFactorClient.getFirstSlotItem());
             player.sendMessage(Style.main(getName(), "§aAuthenticated!"));
         }
     }
@@ -194,6 +220,16 @@ public class TwoFactorAuthentication extends MiniAccount<TwoFactorClient> {
         authenticating.remove(event.getPlayer().getUniqueId());
     }
 
+    /**
+     * Check whetherr or not the provided {@link Player} is authenticating
+     *
+     * @param player the player to check
+     * @return whether or not they're authenticating
+     */
+    public boolean isAuthenticating(Player player) {
+        return authenticating.contains(player.getUniqueId());
+    }
+
     private void cancelEvent(Cancellable cancellable) {
         if (!(cancellable instanceof PlayerEvent))
             return;

core/src/main/java/zone/themcgamer/core/twoFactor/TwoFactorClient.java

@@ -3,6 +3,7 @@ package zone.themcgamer.core.twoFactor;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
+import org.bukkit.inventory.ItemStack;
 
 import java.util.concurrent.TimeUnit;
 
@@ -14,6 +15,11 @@ public class TwoFactorClient {
     private String secretKey;
     private long lastAuthentication;
 
+    // This is not stored in MySQL, this is just a copy of the item in the first slot of the player's inventory
+    // when they join. We save this item as we place the QR map in that slot and we give them the item when they
+    // authenticate
+    private ItemStack firstSlotItem;
+
     public boolean requiresAuthentication() {
         return secretKey == null || (System.currentTimeMillis() - lastAuthentication) >= TimeUnit.DAYS.toMillis(1L);
     }

core/src/main/java/zone/themcgamer/core/twoFactor/image/QRImageGenerator.java

@@ -0,0 +1,35 @@
+package zone.themcgamer.core.twoFactor.image;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.google.zxing.client.j2se.MatrixToImageWriter;
+import com.google.zxing.qrcode.QRCodeWriter;
+import lombok.AllArgsConstructor;
+import org.bukkit.entity.Player;
+
+import java.awt.image.BufferedImage;
+import java.util.function.Consumer;
+
+/**
+ * @author Braydon
+ */
+@AllArgsConstructor
+public class QRImageGenerator implements Runnable {
+    private static final int MAP_SIZE = 132;
+
+    private final Player player;
+    private final String secretKey;
+    private final Consumer<BufferedImage> imageConsumer;
+
+    @Override
+    public void run() {
+        QRCodeWriter qrWriter = new QRCodeWriter();
+        try {
+            imageConsumer.accept(MatrixToImageWriter.toBufferedImage(qrWriter.encode(
+                    "otpauth://totp/" + player.getName() + "@McGamerZone?secret=" + secretKey,
+                    BarcodeFormat.QR_CODE, MAP_SIZE, MAP_SIZE)));
+        } catch (WriterException ex) {
+            ex.printStackTrace();
+        }
+    }
+}

core/src/main/java/zone/themcgamer/core/twoFactor/image/QRMapRenderer.java

@@ -0,0 +1,32 @@
+package zone.themcgamer.core.twoFactor.image;
+
+import org.bukkit.entity.Player;
+import org.bukkit.map.MapCanvas;
+import org.bukkit.map.MapRenderer;
+import org.bukkit.map.MapView;
+
+import java.awt.image.BufferedImage;
+
+/**
+ * @author Braydon
+ */
+public class QRMapRenderer extends MapRenderer {
+    private final Player player;
+    private BufferedImage bufferedImage;
+
+    public QRMapRenderer(Player player, BufferedImage bufferedImage) {
+        super(true);
+        this.player = player;
+        this.bufferedImage = bufferedImage;
+    }
+
+    @Override
+    public void render(MapView mapView, MapCanvas mapCanvas, Player player) {
+        if (bufferedImage == null)
+            return;
+        if (this.player.equals(player)) {
+            mapCanvas.drawImage(0, 0, bufferedImage);
+            bufferedImage = null;
+        }
+    }
+}