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Will it work for GOD H5 Client Protocol 140??
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In this guide we will cover how to understand and implement the packages belonging to the Lineage 2 UI. More specifically the Essence version UI. Required UTPT (Unreal Tournament Package Tool) : https://github.com/l2jsourcecode/ut-package-tool File : InterfaceClassic.U The packages are embedded into the interface, specifically located in the InterfaceClassic.u file. Some key classes include: UIPacket.uc (defines package structure) UIProtocol.uc (defines package opcode) The packages are split into two main types: Client to Server (prefix: C) Server to Client (prefix: S) For example, in the UIProtocol class: const C_EX_COSTUME_LOCK = 573; // packet from client to server const S_EX_COSTUME_LOCK = 785; // packet from server to client We’ll use this package as a case study to delve deeper. Understanding Client to Server Packets Let's examine a packet from the client with an opcode of 573. On the server side, opcodes are converted into hexadecimal values using a formula: opcode - C_MAX where C_MAX is an opcode defined in UIProtocol. Recently, C_MAX has been set to 209. For instance: 573 - 209 = 364 364 -> hex = 16C This hexadecimal value (16C) corresponds to the opcode for the Java class. Understanding Server to Client Packets For server packets, we also use hexadecimal conversion but with a different opcode: S_MAX = 255 S_MAX is applied to packages with an opcode above 255. For values below this, simply convert the number to hex. For example: const S_EX_COSTUME_LOCK = 785; 785 - 255 = 530 530 -> hex = 212 = 0xFE:0x212 Here, 0xFE represents S_MAX. Packet Structure Finally, let’s look at the packet structure. Open UIPacket.uc and locate the C_EX_COSTUME_LOCK to examine its structure in detail. struct _C_EX_COSTUME_LOCK { var int nCostumeId; var int nLockState; }; We observe two integer variables, representing the structure of the package transmitted to the server. By continuing our search within this file, we find the following code: static function bool Encode_C_EX_COSTUME_LOCK(out array<byte> stream, _C_EX_COSTUME_LOCK packet) { if(!EncodeInt(stream, packet.nCostumeId)) { return false; } if(!EncodeChar(stream, packet.nLockState)) { return false; } return true; } This function encodes the packet structure for transmission. As discussed earlier, the data types within the packet are crucial. Specifically: EncodeInt corresponds to an integer. EncodeChar is treated as a short in Java, typically read using readC, while readD is used for EncodeInt. Having examined the client-to-server packet structure, let's now explore the structure expected by the client from the server. The process is similar. We locate _S_EX_COSTUME_LOCK within UIPacket: struct _S_EX_COSTUME_LOCK { var byte bResult; var int nCostumeId; var int nLockState; }; Data Decryption The corresponding decryption function is: static function bool Decode_S_EX_COSTUME_LOCK(out _S_EX_COSTUME_LOCK packet) { if(!DecodeBool(packet.bResult)) { return false; } if(!DecodeInt(packet.nCostumeId)) { return false; } if(!DecodeChar(packet.nLockState)) { return false; } return true; } Here, the variables are decoded as follows: bResult is decoded as a Bool. nCostumeId is decoded as an Int. nLockState is decoded as a Char. This consistent approach to encoding and decoding ensures reliable data transmission between the client and server. Example usage : https://imgur.com/a/zVZHVzq Credits : L2j West Coast Custom ( https://discord.gg/n2c8meMN )
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Starting Login Server.
INFO : loading login config
INFO : MLog clients using log4j logging.
INFO : Initializing c3p0-0.9.1.1 [built 15-March-2007 01:32:31; debug? true; tra
ce: 10]
INFO : Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDataSource [ jav
a.beans.IntrospectionException: java.lang.reflect.InvocationTargetException [las
tAcquisitionFailureDefaultUser] ]
WARN : SQL Error: 1045, SQLState: 28000
ERROR : Access denied for user 'root'@'localhost' (using password: YES)
WARN : Could not obtain connection metadata java.sql.SQLException: Access denied
for user 'root'@'localhost' (using password: YES)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:771)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3647)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1176)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2544)
at com.mysql.jdbc.Connection.<init>(Connection.java:1474)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java
:266)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManag
erDataSource.java:120)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti
on(WrapperConnectionPoolDataSource.java:143)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti
on(WrapperConnectionPoolDataSource.java:132)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.initializeAu
tomaticTestTable(C3P0PooledConnectionPoolManager.java:772)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.createPooled
ConnectionPool(C3P0PooledConnectionPoolManager.java:696)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0
PooledConnectionPoolManager.java:257)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0
PooledConnectionPoolManager.java:271)
at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(A
bstractPoolBackedDataSource.java:128)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.
getConnection(LocalDataSourceConnectionProvider.java:81)
at org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:
84)
at org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2009
)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.jav
a:1292)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSession
Factory(LocalSessionFactoryBean.java:804)
at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessi
onFactory(LocalSessionFactoryBean.java:744)
at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPr
opertiesSet(AbstractSessionFactoryBean.java:131)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1118)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.initializeBean(AbstractAutowireCapableBeanFactory.java:1085)
at org.springframework.beans.factory.support.AbstractAutowireCapableBean
Factory.createBean(AbstractAutowireCapableBeanFactory.java:429)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getOb
ject(AbstractBeanFactory.java:250)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistr
y.getSingleton(DefaultSingletonBeanRegistry.java:141)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean
(AbstractBeanFactory.java:247)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean
(AbstractBeanFactory.java:161)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.
preInstantiateSingletons(DefaultListableBeanFactory.java:270)
at org.springframework.context.support.AbstractApplicationContext.refres
h(AbstractApplicationContext.java:346)
at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:92)
at org.springframework.context.support.ClassPathXmlApplicationContext.<i
nit>(ClassPathXmlApplicationContext.java:77)
at net.sf.l2j.tools.L2Registry.loadRegistry(L2Registry.java:65)
at net.sf.l2j.loginserver.L2LoginServer.<init>(L2LoginServer.java:104)
at net.sf.l2j.loginserver.L2LoginServer.main(L2LoginServer.java:77)
INFO : Loaded 127 server names
INFO : LoginManager initiating
INFO : Cached 10 KeyPairs for RSA communication
INFO : Stored 20 keys for Blowfish communication
WARN : SQL Error: 1045, SQLState: 28000
ERROR : Access denied for user 'root'@'localhost' (using password: YES)
WARN : SQL Error: 1045, SQLState: 28000
ERROR : Access denied for user 'root'@'localhost' (using password: YES)
Exception in thread "main" org.springframework.transaction.CannotCreateTransacti
onException: Could not open Hibernate Session for transaction; nested exception
is org.hibernate.exception.GenericJDBCException: Cannot open connection
Caused by: org.hibernate.exception.GenericJDBCException: Cannot open connection
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException
(SQLStateConverter.java:103)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.j
ava:91)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:43)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelp
er.java:29)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager
.java:424)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.
java:144)
at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:119)
at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:
57)
at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326
)
at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegi
n(HibernateTransactionManager.java:497)
at org.springframework.transaction.support.AbstractPlatformTransactionMa
nager.getTransaction(AbstractPlatformTransactionManager.java:349)
at org.springframework.transaction.interceptor.TransactionAspectSupport.
createTransactionIfNecessary(TransactionAspectSupport.java:255)
at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:102)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:176)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterc
eptor.intercept(Cglib2AopProxy.java:616)
at net.sf.l2j.loginserver.services.GameserversServices$$EnhancerByCGLIB$
$cf15d50a.getAllGameservers(<generated>)
at net.sf.l2j.loginserver.manager.GameServerManager.load(GameServerManag
er.java:208)
at net.sf.l2j.loginserver.manager.GameServerManager.<init>(GameServerMan
ager.java:111)
at net.sf.l2j.loginserver.manager.GameServerManager.getInstance(GameServ
erManager.java:82)
at net.sf.l2j.loginserver.L2LoginServer.<init>(L2LoginServer.java:113)
at net.sf.l2j.loginserver.L2LoginServer.main(L2LoginServer.java:77)
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (usi
ng password: YES)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2926)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:771)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3647)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1176)
at com.mysql.jdbc.Connection.createNewIO(Connection.java:2544)
at com.mysql.jdbc.Connection.<init>(Connection.java:1474)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java
:266)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManag
erDataSource.java:120)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti
on(WrapperConnectionPoolDataSource.java:143)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnecti
on(WrapperConnectionPoolDataSource.java:132)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.initializeAu
tomaticTestTable(C3P0PooledConnectionPoolManager.java:772)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.createPooled
ConnectionPool(C3P0PooledConnectionPoolManager.java:696)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0
PooledConnectionPoolManager.java:257)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPoolManager.getPool(C3P0
PooledConnectionPoolManager.java:271)
at com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource.getConnection(A
bstractPoolBackedDataSource.java:128)
at org.springframework.orm.hibernate3.LocalDataSourceConnectionProvider.
getConnection(LocalDataSourceConnectionProvider.java:81)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager
.java:421)
... 16 more
Server terminated abnormaly
server terminated
Press any key to continue . . .
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