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WorldSocket.cpp
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WorldSocket.cpp
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/*
* Copyright (C) 2008-2013 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <ace/Message_Block.h>
#include <ace/OS_NS_string.h>
#include <ace/OS_NS_unistd.h>
#include <ace/os_include/arpa/os_inet.h>
#include <ace/os_include/netinet/os_tcp.h>
#include <ace/os_include/sys/os_types.h>
#include <ace/os_include/sys/os_socket.h>
#include <ace/OS_NS_string.h>
#include <ace/Reactor.h>
#include <ace/Auto_Ptr.h>
#include "WorldSocket.h"
#include "Common.h"
#include "Player.h"
#include "Util.h"
#include "World.h"
#include "WorldPacket.h"
#include "SharedDefines.h"
#include "ByteBuffer.h"
#include "Opcodes.h"
#include "DatabaseEnv.h"
#include "BigNumber.h"
#include "SHA1.h"
#include "WorldSession.h"
#include "WorldSocketMgr.h"
#include "Log.h"
#include "PacketLog.h"
#include "ScriptMgr.h"
#include "AccountMgr.h"
#if defined(__GNUC__)
#pragma pack(1)
#else
#pragma pack(push, 1)
#endif
struct ServerPktHeader
{
/**
* size is the length of the payload _plus_ the length of the opcode
*/
ServerPktHeader(uint32 size, uint16 cmd) : size(size)
{
uint8 headerIndex=0;
if (isLargePacket())
{
sLog->outDebug(LOG_FILTER_NETWORKIO, "initializing large server to client packet. Size: %u, cmd: %u", size, cmd);
header[headerIndex++] = 0x80 | (0xFF & (size >> 16));
}
header[headerIndex++] = 0xFF &(size >> 8);
header[headerIndex++] = 0xFF & size;
header[headerIndex++] = 0xFF & cmd;
header[headerIndex++] = 0xFF & (cmd >> 8);
}
uint8 getHeaderLength()
{
// cmd = 2 bytes, size= 2||3bytes
return 2 + (isLargePacket() ? 3 : 2);
}
bool isLargePacket() const
{
return size > 0x7FFF;
}
const uint32 size;
uint8 header[5];
};
struct ClientPktHeader
{
uint16 size;
uint32 cmd;
};
#if defined(__GNUC__)
#pragma pack()
#else
#pragma pack(pop)
#endif
WorldSocket::WorldSocket (void): WorldHandler(),
m_LastPingTime(ACE_Time_Value::zero), m_OverSpeedPings(0), m_Session(0),
m_RecvWPct(0), m_RecvPct(), m_Header(sizeof (ClientPktHeader)),
m_OutBuffer(0), m_OutBufferSize(65536), m_OutActive(false),
m_Seed(static_cast<uint32> (rand32()))
{
reference_counting_policy().value (ACE_Event_Handler::Reference_Counting_Policy::ENABLED);
msg_queue()->high_water_mark(8 * 1024 * 1024);
msg_queue()->low_water_mark(8 * 1024 * 1024);
}
WorldSocket::~WorldSocket (void)
{
delete m_RecvWPct;
if (m_OutBuffer)
m_OutBuffer->release();
closing_ = true;
peer().close();
}
bool WorldSocket::IsClosed (void) const
{
return closing_;
}
void WorldSocket::CloseSocket (void)
{
{
ACE_GUARD (LockType, Guard, m_OutBufferLock);
if (closing_)
return;
closing_ = true;
peer().close_writer();
}
{
ACE_GUARD (LockType, Guard, m_SessionLock);
m_Session = NULL;
}
}
const std::string& WorldSocket::GetRemoteAddress (void) const
{
return m_Address;
}
int WorldSocket::SendPacket(WorldPacket const& pct)
{
ACE_GUARD_RETURN (LockType, Guard, m_OutBufferLock, -1);
if (closing_)
return -1;
// Dump outgoing packet
if (sPacketLog->CanLogPacket())
sPacketLog->LogPacket(pct, SERVER_TO_CLIENT);
WorldPacket const* pkt = &pct;
if (m_Session)
sLog->outTrace(LOG_FILTER_OPCODES, "S->C: %s %s", m_Session->GetPlayerInfo().c_str(), GetOpcodeNameForLogging(pkt->GetOpcode()).c_str());
sScriptMgr->OnPacketSend(this, *pkt);
ServerPktHeader header(pkt->size()+2, pkt->GetOpcode());
m_Crypt.EncryptSend ((uint8*)header.header, header.getHeaderLength());
if (m_OutBuffer->space() >= pkt->size() + header.getHeaderLength() && msg_queue()->is_empty())
{
// Put the packet on the buffer.
if (m_OutBuffer->copy((char*) header.header, header.getHeaderLength()) == -1)
ACE_ASSERT (false);
if (!pkt->empty())
if (m_OutBuffer->copy((char*) pkt->contents(), pkt->size()) == -1)
ACE_ASSERT (false);
}
else
{
// Enqueue the packet.
ACE_Message_Block* mb;
ACE_NEW_RETURN(mb, ACE_Message_Block(pkt->size() + header.getHeaderLength()), -1);
mb->copy((char*) header.header, header.getHeaderLength());
if (!pkt->empty())
mb->copy((const char*)pkt->contents(), pkt->size());
if (msg_queue()->enqueue_tail(mb, (ACE_Time_Value*)&ACE_Time_Value::zero) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::SendPacket enqueue_tail failed");
mb->release();
return -1;
}
}
return 0;
}
long WorldSocket::AddReference (void)
{
return static_cast<long> (add_reference());
}
long WorldSocket::RemoveReference (void)
{
return static_cast<long> (remove_reference());
}
int WorldSocket::open (void *a)
{
ACE_UNUSED_ARG (a);
// Prevent double call to this func.
if (m_OutBuffer)
return -1;
// This will also prevent the socket from being Updated
// while we are initializing it.
m_OutActive = true;
// Hook for the manager.
if (sWorldSocketMgr->OnSocketOpen(this) == -1)
return -1;
// Allocate the buffer.
ACE_NEW_RETURN (m_OutBuffer, ACE_Message_Block (m_OutBufferSize), -1);
// Store peer address.
ACE_INET_Addr remote_addr;
if (peer().get_remote_addr(remote_addr) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::open: peer().get_remote_addr errno = %s", ACE_OS::strerror (errno));
return -1;
}
m_Address = remote_addr.get_host_addr();
if (HandleSendAuthSession() == -1)
return -1;
// Register with ACE Reactor
if (reactor()->register_handler(this, ACE_Event_Handler::READ_MASK | ACE_Event_Handler::WRITE_MASK) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::open: unable to register client handler errno = %s", ACE_OS::strerror (errno));
return -1;
}
// reactor takes care of the socket from now on
remove_reference();
return 0;
}
int WorldSocket::close (u_long)
{
shutdown();
closing_ = true;
remove_reference();
return 0;
}
int WorldSocket::handle_input (ACE_HANDLE)
{
if (closing_)
return -1;
switch (handle_input_missing_data())
{
case -1 :
{
if ((errno == EWOULDBLOCK) ||
(errno == EAGAIN))
{
return Update(); // interesting line, isn't it ?
}
sLog->outDebug(LOG_FILTER_NETWORKIO, "WorldSocket::handle_input: Peer error closing connection errno = %s", ACE_OS::strerror (errno));
errno = ECONNRESET;
return -1;
}
case 0:
{
sLog->outDebug(LOG_FILTER_NETWORKIO, "WorldSocket::handle_input: Peer has closed connection");
errno = ECONNRESET;
return -1;
}
case 1:
return 1;
default:
return Update(); // another interesting line ;)
}
ACE_NOTREACHED(return -1);
}
int WorldSocket::handle_output (ACE_HANDLE)
{
ACE_GUARD_RETURN (LockType, Guard, m_OutBufferLock, -1);
if (closing_)
return -1;
size_t send_len = m_OutBuffer->length();
if (send_len == 0)
return handle_output_queue(Guard);
#ifdef MSG_NOSIGNAL
ssize_t n = peer().send (m_OutBuffer->rd_ptr(), send_len, MSG_NOSIGNAL);
#else
ssize_t n = peer().send (m_OutBuffer->rd_ptr(), send_len);
#endif // MSG_NOSIGNAL
if (n == 0)
return -1;
else if (n == -1)
{
if (errno == EWOULDBLOCK || errno == EAGAIN)
return schedule_wakeup_output (Guard);
return -1;
}
else if (n < (ssize_t)send_len) //now n > 0
{
m_OutBuffer->rd_ptr (static_cast<size_t> (n));
// move the data to the base of the buffer
m_OutBuffer->crunch();
return schedule_wakeup_output (Guard);
}
else //now n == send_len
{
m_OutBuffer->reset();
return handle_output_queue (Guard);
}
ACE_NOTREACHED (return 0);
}
int WorldSocket::handle_output_queue (GuardType& g)
{
if (msg_queue()->is_empty())
return cancel_wakeup_output(g);
ACE_Message_Block* mblk;
if (msg_queue()->dequeue_head(mblk, (ACE_Time_Value*)&ACE_Time_Value::zero) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::handle_output_queue dequeue_head");
return -1;
}
const size_t send_len = mblk->length();
#ifdef MSG_NOSIGNAL
ssize_t n = peer().send (mblk->rd_ptr(), send_len, MSG_NOSIGNAL);
#else
ssize_t n = peer().send (mblk->rd_ptr(), send_len);
#endif // MSG_NOSIGNAL
if (n == 0)
{
mblk->release();
return -1;
}
else if (n == -1)
{
if (errno == EWOULDBLOCK || errno == EAGAIN)
{
msg_queue()->enqueue_head(mblk, (ACE_Time_Value*) &ACE_Time_Value::zero);
return schedule_wakeup_output (g);
}
mblk->release();
return -1;
}
else if (n < (ssize_t)send_len) //now n > 0
{
mblk->rd_ptr(static_cast<size_t> (n));
if (msg_queue()->enqueue_head(mblk, (ACE_Time_Value*) &ACE_Time_Value::zero) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::handle_output_queue enqueue_head");
mblk->release();
return -1;
}
return schedule_wakeup_output (g);
}
else //now n == send_len
{
mblk->release();
return msg_queue()->is_empty() ? cancel_wakeup_output(g) : ACE_Event_Handler::WRITE_MASK;
}
ACE_NOTREACHED(return -1);
}
int WorldSocket::handle_close (ACE_HANDLE h, ACE_Reactor_Mask)
{
// Critical section
{
ACE_GUARD_RETURN (LockType, Guard, m_OutBufferLock, -1);
closing_ = true;
if (h == ACE_INVALID_HANDLE)
peer().close_writer();
}
// Critical section
{
ACE_GUARD_RETURN (LockType, Guard, m_SessionLock, -1);
m_Session = NULL;
}
reactor()->remove_handler(this, ACE_Event_Handler::DONT_CALL | ACE_Event_Handler::ALL_EVENTS_MASK);
return 0;
}
int WorldSocket::Update (void)
{
if (closing_)
return -1;
if (m_OutActive || (m_OutBuffer->length() == 0 && msg_queue()->is_empty()))
return 0;
int ret;
do
ret = handle_output(get_handle());
while (ret > 0);
return ret;
}
int WorldSocket::handle_input_header (void)
{
ACE_ASSERT(m_RecvWPct == NULL);
ACE_ASSERT(m_Header.length() == sizeof(ClientPktHeader));
m_Crypt.DecryptRecv ((uint8*)m_Header.rd_ptr(), sizeof(ClientPktHeader));
ClientPktHeader& header = *((ClientPktHeader*)m_Header.rd_ptr());
EndianConvertReverse(header.size);
EndianConvert(header.cmd);
if ((header.size < 4) || (header.size > 10240) || (header.cmd > 10240))
{
Player* _player = m_Session ? m_Session->GetPlayer() : NULL;
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::handle_input_header(): client (account: %u, char [GUID: %u, name: %s]) sent malformed packet (size: %d, cmd: %d)",
m_Session ? m_Session->GetAccountId() : 0,
_player ? _player->GetGUIDLow() : 0,
_player ? _player->GetName().c_str() : "<none>",
header.size, header.cmd);
errno = EINVAL;
return -1;
}
header.size -= 4;
ACE_NEW_RETURN(m_RecvWPct, WorldPacket ((uint16)header.cmd, header.size), -1);
if (header.size > 0)
{
m_RecvWPct->resize(header.size);
m_RecvPct.base ((char*) m_RecvWPct->contents(), m_RecvWPct->size());
}
else
{
ACE_ASSERT(m_RecvPct.space() == 0);
}
return 0;
}
int WorldSocket::handle_input_payload (void)
{
// set errno properly here on error !!!
// now have a header and payload
ACE_ASSERT (m_RecvPct.space() == 0);
ACE_ASSERT (m_Header.space() == 0);
ACE_ASSERT (m_RecvWPct != NULL);
const int ret = ProcessIncoming (m_RecvWPct);
m_RecvPct.base (NULL, 0);
m_RecvPct.reset();
m_RecvWPct = NULL;
m_Header.reset();
if (ret == -1)
errno = EINVAL;
return ret;
}
int WorldSocket::handle_input_missing_data (void)
{
char buf [4096];
ACE_Data_Block db (sizeof (buf),
ACE_Message_Block::MB_DATA,
buf,
0,
0,
ACE_Message_Block::DONT_DELETE,
0);
ACE_Message_Block message_block(&db,
ACE_Message_Block::DONT_DELETE,
0);
const size_t recv_size = message_block.space();
const ssize_t n = peer().recv (message_block.wr_ptr(),
recv_size);
if (n <= 0)
return int(n);
message_block.wr_ptr (n);
while (message_block.length() > 0)
{
if (m_Header.space() > 0)
{
//need to receive the header
const size_t to_header = (message_block.length() > m_Header.space() ? m_Header.space() : message_block.length());
m_Header.copy (message_block.rd_ptr(), to_header);
message_block.rd_ptr (to_header);
if (m_Header.space() > 0)
{
// Couldn't receive the whole header this time.
ACE_ASSERT (message_block.length() == 0);
errno = EWOULDBLOCK;
return -1;
}
// We just received nice new header
if (handle_input_header() == -1)
{
ACE_ASSERT ((errno != EWOULDBLOCK) && (errno != EAGAIN));
return -1;
}
}
// Its possible on some error situations that this happens
// for example on closing when epoll receives more chunked data and stuff
// hope this is not hack, as proper m_RecvWPct is asserted around
if (!m_RecvWPct)
{
sLog->outError(LOG_FILTER_NETWORKIO, "Forcing close on input m_RecvWPct = NULL");
errno = EINVAL;
return -1;
}
// We have full read header, now check the data payload
if (m_RecvPct.space() > 0)
{
//need more data in the payload
const size_t to_data = (message_block.length() > m_RecvPct.space() ? m_RecvPct.space() : message_block.length());
m_RecvPct.copy (message_block.rd_ptr(), to_data);
message_block.rd_ptr (to_data);
if (m_RecvPct.space() > 0)
{
// Couldn't receive the whole data this time.
ACE_ASSERT (message_block.length() == 0);
errno = EWOULDBLOCK;
return -1;
}
}
//just received fresh new payload
if (handle_input_payload() == -1)
{
ACE_ASSERT ((errno != EWOULDBLOCK) && (errno != EAGAIN));
return -1;
}
}
return size_t(n) == recv_size ? 1 : 2;
}
int WorldSocket::cancel_wakeup_output (GuardType& g)
{
if (!m_OutActive)
return 0;
m_OutActive = false;
g.release();
if (reactor()->cancel_wakeup
(this, ACE_Event_Handler::WRITE_MASK) == -1)
{
// would be good to store errno from reactor with errno guard
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::cancel_wakeup_output");
return -1;
}
return 0;
}
int WorldSocket::schedule_wakeup_output (GuardType& g)
{
if (m_OutActive)
return 0;
m_OutActive = true;
g.release();
if (reactor()->schedule_wakeup
(this, ACE_Event_Handler::WRITE_MASK) == -1)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::schedule_wakeup_output");
return -1;
}
return 0;
}
int WorldSocket::ProcessIncoming(WorldPacket* new_pct)
{
ACE_ASSERT (new_pct);
// manage memory ;)
ACE_Auto_Ptr<WorldPacket> aptr(new_pct);
const ACE_UINT16 opcode = new_pct->GetOpcode();
if (closing_)
return -1;
// Dump received packet.
if (sPacketLog->CanLogPacket())
sPacketLog->LogPacket(*new_pct, CLIENT_TO_SERVER);
std::string opcodeName = GetOpcodeNameForLogging(opcode);
if (m_Session)
sLog->outTrace(LOG_FILTER_OPCODES, "C->S: %s %s", m_Session->GetPlayerInfo().c_str(), opcodeName.c_str());
try
{
switch (opcode)
{
case CMSG_PING:
return HandlePing(*new_pct);
case CMSG_AUTH_SESSION:
if (m_Session)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::ProcessIncoming: received duplicate CMSG_AUTH_SESSION from %s", m_Session->GetPlayerInfo().c_str());
return -1;
}
sScriptMgr->OnPacketReceive(this, WorldPacket(*new_pct));
return HandleAuthSession(*new_pct);
case CMSG_KEEP_ALIVE:
sLog->outDebug(LOG_FILTER_NETWORKIO, "%s", opcodeName.c_str());
sScriptMgr->OnPacketReceive(this, WorldPacket(*new_pct));
return 0;
default:
{
ACE_GUARD_RETURN(LockType, Guard, m_SessionLock, -1);
if (!m_Session)
{
sLog->outError(LOG_FILTER_OPCODES, "ProcessIncoming: Client not authed opcode = %u", uint32(opcode));
return -1;
}
// Our Idle timer will reset on any non PING opcodes.
// Catches people idling on the login screen and any lingering ingame connections.
m_Session->ResetTimeOutTime();
// OK, give the packet to WorldSession
aptr.release();
// WARNING here we call it with locks held.
// Its possible to cause deadlock if QueuePacket calls back
m_Session->QueuePacket(new_pct);
return 0;
}
}
}
catch (ByteBufferException &)
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::ProcessIncoming ByteBufferException occured while parsing an instant handled packet %s from client %s, accountid=%i. Disconnected client.",
opcodeName.c_str(), GetRemoteAddress().c_str(), m_Session ? int32(m_Session->GetAccountId()) : -1);
new_pct->hexlike();
return -1;
}
ACE_NOTREACHED (return 0);
}
int WorldSocket::HandleSendAuthSession()
{
WorldPacket packet(SMSG_AUTH_CHALLENGE, 37);
packet << uint32(1); // 1...31
packet << uint32(m_Seed);
BigNumber seed1;
seed1.SetRand(16 * 8);
packet.append(seed1.AsByteArray(16), 16); // new encryption seeds
BigNumber seed2;
seed2.SetRand(16 * 8);
packet.append(seed2.AsByteArray(16), 16); // new encryption seeds
return SendPacket(packet);
}
int WorldSocket::HandleAuthSession(WorldPacket& recvPacket)
{
uint8 digest[20];
uint32 clientSeed;
uint8 security;
uint32 id;
LocaleConstant locale;
std::string account;
SHA1Hash sha;
uint32 clientBuild;
uint32 unk2, unk3, unk5, unk6, unk7;
uint64 unk4;
WorldPacket packet, SendAddonPacked;
BigNumber k;
if (sWorld->IsClosed())
{
SendAuthResponseError(AUTH_REJECT);
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: World closed, denying client (%s).", GetRemoteAddress().c_str());
return -1;
}
// Read the content of the packet
recvPacket >> clientBuild;
recvPacket >> unk2;
recvPacket >> account;
recvPacket >> unk3;
recvPacket >> clientSeed;
recvPacket >> unk5 >> unk6 >> unk7;
recvPacket >> unk4;
recvPacket.read(digest, 20);
sLog->outDebug(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: client %u, unk2 %u, account %s, unk3 %u, clientseed %u",
clientBuild,
unk2,
account.c_str(),
unk3,
clientSeed);
// Get the account information from the realmd database
// 0 1 2 3 4 5 6 7 8
// SELECT id, sessionkey, last_ip, locked, expansion, mutetime, locale, recruiter, os FROM account WHERE username = ?
PreparedStatement* stmt = LoginDatabase.GetPreparedStatement(LOGIN_SEL_ACCOUNT_INFO_BY_NAME);
stmt->setString(0, account);
PreparedQueryResult result = LoginDatabase.Query(stmt);
// Stop if the account is not found
if (!result)
{
SendAuthResponseError(AUTH_UNKNOWN_ACCOUNT);
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Sent Auth Response (unknown account).");
return -1;
}
Field* fields = result->Fetch();
uint8 expansion = fields[4].GetUInt8();
uint32 world_expansion = sWorld->getIntConfig(CONFIG_EXPANSION);
if (expansion > world_expansion)
expansion = world_expansion;
///- Re-check ip locking (same check as in realmd).
if (fields[3].GetUInt8() == 1) // if ip is locked
{
if (strcmp (fields[2].GetCString(), GetRemoteAddress().c_str()))
{
SendAuthResponseError(AUTH_FAILED);
sLog->outDebug(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Sent Auth Response (Account IP differs).");
return -1;
}
}
id = fields[0].GetUInt32();
k.SetHexStr(fields[1].GetCString());
int64 mutetime = fields[5].GetInt64();
//! Negative mutetime indicates amount of seconds to be muted effective on next login - which is now.
if (mutetime < 0)
{
mutetime = time(NULL) + llabs(mutetime);
PreparedStatement* stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_MUTE_TIME_LOGIN);
stmt->setInt64(0, mutetime);
stmt->setUInt32(1, id);
LoginDatabase.Execute(stmt);
}
locale = LocaleConstant (fields[6].GetUInt8());
if (locale >= TOTAL_LOCALES)
locale = LOCALE_enUS;
uint32 recruiter = fields[7].GetUInt32();
std::string os = fields[8].GetString();
// Must be done before WorldSession is created
if (sWorld->getBoolConfig(CONFIG_WARDEN_ENABLED) && os != "Win" && os != "OSX")
{
SendAuthResponseError(AUTH_REJECT);
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Client %s attempted to log in using invalid client OS (%s).", GetRemoteAddress().c_str(), os.c_str());
return -1;
}
// Checks gmlevel per Realm
stmt = LoginDatabase.GetPreparedStatement(LOGIN_GET_GMLEVEL_BY_REALMID);
stmt->setUInt32(0, id);
stmt->setInt32(1, int32(realmID));
result = LoginDatabase.Query(stmt);
if (!result)
security = 0;
else
{
fields = result->Fetch();
security = fields[0].GetUInt8();
}
// Re-check account ban (same check as in realmd)
stmt = LoginDatabase.GetPreparedStatement(LOGIN_SEL_BANS);
stmt->setUInt32(0, id);
stmt->setString(1, GetRemoteAddress());
PreparedQueryResult banresult = LoginDatabase.Query(stmt);
if (banresult) // if account banned
{
SendAuthResponseError(AUTH_BANNED);
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Sent Auth Response (Account banned).");
return -1;
}
// Check locked state for server
AccountTypes allowedAccountType = sWorld->GetPlayerSecurityLimit();
sLog->outDebug(LOG_FILTER_NETWORKIO, "Allowed Level: %u Player Level %u", allowedAccountType, AccountTypes(security));
if (allowedAccountType > SEC_PLAYER && AccountTypes(security) < allowedAccountType)
{
SendAuthResponseError(AUTH_UNAVAILABLE);
sLog->outInfo(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: User tries to login but his security level is not enough");
return -1;
}
// Check that Key and account name are the same on client and server
uint32 t = 0;
uint32 seed = m_Seed;
sha.UpdateData(account);
sha.UpdateData((uint8*)&t, 4);
sha.UpdateData((uint8*)&clientSeed, 4);
sha.UpdateData((uint8*)&seed, 4);
sha.UpdateBigNumbers(&k, NULL);
sha.Finalize();
std::string address = GetRemoteAddress();
if (memcmp(sha.GetDigest(), digest, 20))
{
SendAuthResponseError(AUTH_FAILED);
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Authentication failed for account: %u ('%s') address: %s", id, account.c_str(), address.c_str());
return -1;
}
sLog->outDebug(LOG_FILTER_NETWORKIO, "WorldSocket::HandleAuthSession: Client '%s' authenticated successfully from %s.",
account.c_str(),
address.c_str());
// Check if this user is by any chance a recruiter
stmt = LoginDatabase.GetPreparedStatement(LOGIN_SEL_ACCOUNT_RECRUITER);
stmt->setUInt32(0, id);
result = LoginDatabase.Query(stmt);
bool isRecruiter = false;
if (result)
isRecruiter = true;
// Update the last_ip in the database
stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_LAST_IP);
stmt->setString(0, address);
stmt->setString(1, account);
LoginDatabase.Execute(stmt);
// NOTE ATM the socket is single-threaded, have this in mind ...
ACE_NEW_RETURN(m_Session, WorldSession(id, this, AccountTypes(security), expansion, mutetime, locale, recruiter, isRecruiter), -1);
stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_CLEAR_SESSIONKEY);
stmt->setUInt32(0, id);
LoginDatabase.Execute(stmt);
m_Crypt.Init(&k);
m_Session->LoadGlobalAccountData();
m_Session->LoadTutorialsData();
m_Session->ReadAddonsInfo(recvPacket);
m_Session->LoadPermissions();
// Initialize Warden system only if it is enabled by config
if (sWorld->getBoolConfig(CONFIG_WARDEN_ENABLED))
m_Session->InitWarden(&k, os);
// Sleep this Network thread for
uint32 sleepTime = sWorld->getIntConfig(CONFIG_SESSION_ADD_DELAY);
ACE_OS::sleep(ACE_Time_Value(0, sleepTime));
sWorld->AddSession(m_Session);
return 0;
}
int WorldSocket::HandlePing (WorldPacket& recvPacket)
{
uint32 ping;
uint32 latency;
// Get the ping packet content
recvPacket >> ping;
recvPacket >> latency;
if (m_LastPingTime == ACE_Time_Value::zero)
m_LastPingTime = ACE_OS::gettimeofday(); // for 1st ping
else
{
ACE_Time_Value cur_time = ACE_OS::gettimeofday();
ACE_Time_Value diff_time (cur_time);
diff_time -= m_LastPingTime;
m_LastPingTime = cur_time;
if (diff_time < ACE_Time_Value (27))
{
++m_OverSpeedPings;
uint32 max_count = sWorld->getIntConfig (CONFIG_MAX_OVERSPEED_PINGS);
if (max_count && m_OverSpeedPings > max_count)
{
ACE_GUARD_RETURN (LockType, Guard, m_SessionLock, -1);
if (m_Session && AccountMgr::IsPlayerAccount(m_Session->GetSecurity()))
{
sLog->outError(LOG_FILTER_NETWORKIO, "WorldSocket::HandlePing: %s kicked for over-speed pings (address: %s)",
m_Session->GetPlayerInfo().c_str(), GetRemoteAddress().c_str());
return -1;
}
}
}
else
m_OverSpeedPings = 0;
}