Java tutorial
/* The MIT License (MIT) Copyright (c) 2013 bobcodes Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package rotmg.actions.outgoing; import java.io.DataInputStream; import java.io.DataOutputStream; import java.io.IOException; import java.io.Reader; import java.io.StringReader; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.security.PublicKey; import java.security.Security; import java.util.Arrays; import javax.crypto.BadPaddingException; import javax.crypto.Cipher; import javax.crypto.IllegalBlockSizeException; import javax.crypto.NoSuchPaddingException; import org.bouncycastle.jce.provider.BouncyCastleProvider; import org.bouncycastle.openssl.PEMReader; import org.bouncycastle.util.encoders.Base64; import rotmg.account.UserConfig; import rotmg.actions.OutgoingAction; import rotmg.net.RotmgParameters; import com.google.common.base.Charsets; /** * var _loc2_:HelloNetworkMessage = this.govizupas.runozak(HELLO) as HelloNetworkMessage; _loc2_.buildVersion_=UserConfig.BUILD_VERSION; _loc2_._whereToSendPlayer=_whereToSendPlayer; _loc2_.guid_=this.qopy(account.getUserId()); _loc2_.password_=this.qopy(account.password()); _loc2_.secret_=this.qopy(account.platformDependantSecret()); _loc2_.keyTime_=keyTime_; _loc2_.key_.length=0; _loc2_.sofabe=sofabe==null?"":sofabe; // possibly empty _loc2_.vukyluz = account.qujipoj(); // ExternalInterface.call("rotmg.UrlLib.getParam","entrypt"); // according to firebug console: // >>> rotmg.UrlLib.getParam("entrypt"); // "" _loc2_.accountType=account.getGameNet(); _loc2_.metulocy=account.zyz(); // empty for rotmg account _loc2_.getPlayPlatform=account.getPlayPlatform(); // rotmg _loc2_.kofimupo=account.rowyr(); // possibly empty */ public class HelloAction implements OutgoingAction { /** * 2013-06-01 build version upgraded to 13.4 */ private final String buildVersion; private final int whereToSendPlayer; private final String userId; private final String password; private final String platformDependantSecret; private final int keyTime; private final byte[] key; private final String somethingThatsEmpty1; private final String rotmgUrlLibParamEntryPoint; private final String gameNet; private final String somethingThatsEmpty2; private final String playPlatform; private final String somethingThatsEmpty3; public HelloAction() { this(RotmgParameters.BUILD_VERSION, -2, // whereToSendPlayer UserConfig.USERNAME, UserConfig.PASSWORD, "", //platformDependantSecret -1, //keyTime new byte[] {}, // key "", //somethingThatsEmpty1 "", //rotmgUrlLibParamEntryPoint "rotmg", //gameNet "", //somethingThatsEmpty2 "rotmg", //playPlatform "" //somethingThatsEmpty3 ); } public HelloAction(String buildVersion, int whereToSendPlayer, String userId, String password, String platformDependantSecret, int keyTime, byte[] key, String somethingThatsEmpty1, String rotmgUrlLibParamEntryPoint, String gameNet, String somethingThatsEmpty2, String playPlatform, String somethingThatsEmpty3) { super(); this.buildVersion = buildVersion; this.whereToSendPlayer = whereToSendPlayer; this.userId = userId; this.password = password; this.platformDependantSecret = platformDependantSecret; this.keyTime = keyTime; this.key = key; this.somethingThatsEmpty1 = somethingThatsEmpty1; this.rotmgUrlLibParamEntryPoint = rotmgUrlLibParamEntryPoint; this.gameNet = gameNet; this.somethingThatsEmpty2 = somethingThatsEmpty2; this.playPlatform = playPlatform; this.somethingThatsEmpty3 = somethingThatsEmpty3; } /** public static const SEND_TO_TUTORIAL:int = -1; public static const SEND_TO_NEXUS:int = -2; public static const SEND_TO_RANDOM_REALM:int = -3; hello.guid_=this.qopy(account.getUserId()); hello.password_=this.qopy(account.password()); hello.secret_=this.qopy(account.platformDependantSecret()); param1.writeUTF(this.buildVersion_); // 13.3 param1.writeInt(this._whereToSendPlayer); // tutorial, nexus, random realm param1.writeUTF(this.guid_); // user name param1.writeUTF(this.password_); // user pw param1.writeUTF(this.secret_); // "" param1.writeInt(this.keyTime_); // initially -1 param1.writeShort(this.key_.length); // initially 0 param1.writeBytes(this.key_); // {} param1.writeInt(this.sofabe.length); // 0 param1.writeUTFBytes(this.sofabe); // "" param1.writeUTF(this.rotmgUrlLibParamEntryPoint); // "" param1.writeUTF(this.gameNet); // rotmg param1.writeUTF(this.metulocy); // "" param1.writeUTF(this.getPlayPlatform); // rotmg param1.writeUTF(this.kofimupo); // "" */ @Override public void toBytes(DataOutputStream dout) throws IOException { dout.writeUTF(buildVersion); dout.writeInt(whereToSendPlayer); dout.writeUTF(encryptWithPublicKey(userId)); // user name dout.writeUTF(encryptWithPublicKey(password)); // user pw dout.writeUTF(encryptWithPublicKey(platformDependantSecret)); // "" dout.writeInt(keyTime); // initially -1 dout.writeShort(key.length); // initially 0 dout.write(key); // {} dout.writeInt(somethingThatsEmpty1.length()); // 0 dout.write(somethingThatsEmpty1.getBytes(Charsets.UTF_8)); // "" dout.writeUTF(rotmgUrlLibParamEntryPoint); // "" dout.writeUTF(gameNet); // rotmg dout.writeUTF(somethingThatsEmpty2); // "" dout.writeUTF(playPlatform); // rotmg dout.writeUTF(somethingThatsEmpty3); // "" } @Override public OutgoingAction fromBytes(DataInputStream din) throws IOException { String buildVersion = din.readUTF(); int whereToSendPlayer = din.readInt(); String username = null; din.readUTF(); String password = null; din.readUTF(); String secret = null; din.readUTF(); int keyTime = din.readInt(); int keyLength = din.readUnsignedShort(); byte[] key = new byte[keyLength]; din.read(key, 0, keyLength); int emptyString1Len = din.readInt(); byte[] emptyString1Bytes = new byte[emptyString1Len]; din.read(emptyString1Bytes, 0, emptyString1Len); String somethingThatsEmpty1 = new String(emptyString1Bytes, Charsets.UTF_8); String rotmgUrlLibParamEntryPoint = din.readUTF(); String gameNet = din.readUTF(); String somethingThatsEmpty2 = din.readUTF(); String playPlatform = din.readUTF(); String somethingThatsEmpty3 = din.readUTF(); return new HelloAction(buildVersion, whereToSendPlayer, username, password, secret, keyTime, key, somethingThatsEmpty1, rotmgUrlLibParamEntryPoint, gameNet, somethingThatsEmpty2, playPlatform, somethingThatsEmpty3); } /** * private function encryptWithPublicKey(param1:String) : String { var rsaPublicKey:RSAKey = PEM.readRSAPublicKey(UserConfig.rotmgPEM); var bytesToEncrypt:ByteArray = new ByteArray(); bytesToEncrypt.writeUTFBytes(param1); var encryptedBytes:ByteArray = new ByteArray(); rsaPublicKey.encrypt(bytesToEncrypt,encryptedBytes,bytesToEncrypt.length); return Base64.encodeByteArray(encryptedBytes); */ private String encryptWithPublicKey(String thingToEncrypt) throws IOException { try (Reader reader = new StringReader(RotmgParameters.ROTMG_PUBLIC_KEY); PEMReader pemReader = new PEMReader(reader)) { Security.addProvider(new BouncyCastleProvider()); PublicKey publicKey = (PublicKey) pemReader.readObject(); Cipher rsa = Cipher.getInstance("RSA"); rsa.init(Cipher.ENCRYPT_MODE, publicKey); byte[] encryptedBytes = rsa.doFinal(thingToEncrypt.getBytes()); return new String(Base64.encode(encryptedBytes)); } catch (IllegalBlockSizeException | BadPaddingException | NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException e) { throw new IOException("Could not encrypt.", e); } } /** * public static const HELLO:int = 17; */ @Override public int getMessageId() { return 17; } @Override public String toString() { return "HelloAction [buildVersion=" + buildVersion + ", whereToSendPlayer=" + whereToSendPlayer //+ ", userId=" //+ userId + ", password=" + password //+ ", platformDependantSecret=" + platformDependantSecret + ", keyTime=" + keyTime + ", key=" + Arrays.toString(key) + ", somethingThatsEmpty1=" + somethingThatsEmpty1 + ", rotmgUrlLibParamEntryPoint=" + rotmgUrlLibParamEntryPoint + ", gameNet=" + gameNet + ", somethingThatsEmpty2=" + somethingThatsEmpty2 + ", playPlatform=" + playPlatform + ", somethingThatsEmpty3=" + somethingThatsEmpty3 + "]"; } }