First upload

src/main/java/com/github/games647/fastlogin/FastLogin.java

@@ -0,0 +1,93 @@
+package com.github.games647.fastlogin;
+
+import com.github.games647.fastlogin.listener.PlayerListener;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.ProtocolManager;
+import com.github.games647.fastlogin.listener.EncryptionPacketListener;
+import com.github.games647.fastlogin.listener.StartPacketListener;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+import java.security.KeyPair;
+import java.security.KeyPairGenerator;
+import java.security.NoSuchAlgorithmException;
+import java.util.concurrent.TimeUnit;
+
+import org.bukkit.plugin.java.JavaPlugin;
+
+public class FastLogin extends JavaPlugin {
+
+    private final KeyPair keyPair = generateKey();
+    private final Cache<String, PlayerData> session = CacheBuilder.newBuilder()
+            .expireAfterWrite(2, TimeUnit.MINUTES)
+            .build();
+
+    @Override
+    public void onEnable() {
+        if (!isEnabled()) {
+            return;
+        }
+
+        if (!getServer().getPluginManager().isPluginEnabled("AuthMe")
+                && !getServer().getPluginManager().isPluginEnabled("xAuth")) {
+            getLogger().warning("No support offline Auth plugin found. ");
+            getLogger().warning("Disabling this plugin...");
+
+            setEnabled(false);
+            return;
+        }
+
+        ProtocolManager protocolManager = ProtocolLibrary.getProtocolManager();
+        protocolManager.addPacketListener(new EncryptionPacketListener(this, protocolManager));
+        protocolManager.addPacketListener(new StartPacketListener(this, protocolManager));
+
+        getServer().getPluginManager().registerEvents(new PlayerListener(this), this);
+    }
+
+    @Override
+    public void onLoad() {
+        //online mode is only changeable aftter a restart
+        if (getServer().getOnlineMode()) {
+            getLogger().severe("Server have to be in offline mode");
+
+            setEnabled(false);
+        }
+
+        generateKey();
+    }
+
+    private KeyPair generateKey() {
+        try {
+            KeyPairGenerator keypairgenerator = KeyPairGenerator.getInstance("RSA");
+
+            keypairgenerator.initialize(1024);
+            return keypairgenerator.generateKeyPair();
+        } catch (NoSuchAlgorithmException noSuchAlgorithmException) {
+            //Should be default existing in every vm
+        }
+
+        return null;
+    }
+
+    public Cache<String, PlayerData> getSession() {
+        return session;
+    }
+
+    public KeyPair getKeyPair() {
+        return keyPair;
+    }
+
+    public HttpURLConnection getConnection(String url) throws IOException {
+        final HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
+        connection.setConnectTimeout(15000);
+        connection.setReadTimeout(15000);
+        connection.setRequestProperty("Content-Type", "application/json");
+        connection.setRequestProperty("User-Agent", "Premium-Checker");
+
+        return connection;
+    }
+}