connection rework, entergame.lua fix

data/modules/mainmenu/entergame.lua

@@ -41,7 +41,7 @@ function EnterGame_connectToLoginServer()
     local motdBox = displayInfoBox("Message of the day", motdText)
 
     -- cancel protocol and reacreate enter game window
-    protocol.cancel()
+    protocol:cancel()
     motdBox.onOk = recreateEnterGame
   end
 

src/framework/net/connection.cpp

@@ -27,7 +27,6 @@
 static boost::asio::io_service ioService;
 
 Connection::Connection() :
-        m_connectionState(CONNECTION_STATE_IDLE),
         m_timer(ioService),
         m_resolver(ioService),
         m_socket(ioService)
@@ -43,7 +42,6 @@ void Connection::poll()
 void Connection::connect(const std::string& host, uint16 port, const std::function<void()>& connectCallback)
 {
     m_connectCallback = connectCallback;
-    m_connectionState = CONNECTION_STATE_RESOLVING;
 
     boost::asio::ip::tcp::resolver::query query(host, convert<std::string>(port));
     m_resolver.async_resolve(query, std::bind(&Connection::onResolve, shared_from_this(), std::placeholders::_1, std::placeholders::_2));
@@ -52,16 +50,31 @@ void Connection::connect(const std::string& host, uint16 port, const std::functi
     m_timer.async_wait(std::bind(&Connection::onTimeout, shared_from_this(), std::placeholders::_1));
 }
 
-void Connection::send(OutputMessage *outputMessage)
+void Connection::send(uint8 *buffer, uint16 size)
 {
     boost::asio::async_write(m_socket,
-                             boost::asio::buffer(outputMessage->getBuffer(), outputMessage->getMessageSize()),
+                             boost::asio::buffer(buffer, size),
                              std::bind(&Connection::onSend, shared_from_this(), std::placeholders::_1, std::placeholders::_2));
 
     m_timer.expires_from_now(boost::posix_time::seconds(2));
     m_timer.async_wait(std::bind(&Connection::onTimeout, shared_from_this(), std::placeholders::_1));
 }
 
+void Connection::recv(uint16 bytes, uint32 timeout, const RecvCallback& callback)
+{
+    m_recvCallback = callback;
+    m_recvSize = bytes;
+
+    boost::asio::async_read(m_socket,
+                            boost::asio::buffer(m_recvBuffer, bytes),
+                            std::bind(&Connection::onRecv, shared_from_this(), std::placeholders::_1));
+
+    if(timeout > 0) {
+        m_timer.expires_from_now(boost::posix_time::seconds(timeout));
+        m_timer.async_wait(std::bind(&Connection::onTimeout, shared_from_this(), std::placeholders::_1));
+    }
+}
+
 void Connection::onTimeout(const boost::system::error_code& error)
 {
     if(error != boost::asio::error::operation_aborted)
@@ -94,12 +107,8 @@ void Connection::onConnect(const boost::system::error_code& error)
         return;
     }
 
-    g_dispatcher.addTask(m_connectCallback);
-
-    // Start listening.
-    boost::asio::async_read(m_socket,
-                            boost::asio::buffer(m_inputMessage.getBuffer(), InputMessage::HEADER_LENGTH),
-                            std::bind(&Connection::onRecvHeader, shared_from_this(), std::placeholders::_1));
+    if(m_connectCallback)
+        g_dispatcher.addTask(m_connectCallback);
 }
 
 void Connection::onSend(const boost::system::error_code& error, size_t)
@@ -113,42 +122,16 @@ void Connection::onSend(const boost::system::error_code& error, size_t)
     }
 }
 
-void Connection::onRecvHeader(const boost::system::error_code& error)
+void Connection::onRecv(const boost::system::error_code& error)
 {
-    if(error) {
-        if(m_errorCallback)
-            g_dispatcher.addTask(std::bind(m_errorCallback, error));
-        return;
-    }
-
-    uint16 messageSize = m_inputMessage.getU16();
-    m_inputMessage.setMessageSize(messageSize);
-
-    boost::asio::async_read(m_socket,
-                            boost::asio::buffer(m_inputMessage.getBuffer() + InputMessage::CHECKSUM_POS, messageSize),
-                            std::bind(&Connection::onRecvData, shared_from_this(), std::placeholders::_1));
-}
+    m_timer.cancel();
 
-void Connection::onRecvData(const boost::system::error_code& error)
-{
     if(error) {
         if(m_errorCallback)
             g_dispatcher.addTask(std::bind(m_errorCallback, error));
         return;
     }
 
-    // call callback
-    // must be called outside dispatcher cause of inputmessage.
     if(m_recvCallback)
-        m_recvCallback(&m_inputMessage);
-        //g_dispatcher.addTask(std::bind(m_recvCallback, &m_inputMessage));
-
-    // keep reading
-
-    // TODO: lua code must be reworked.
-    /*m_inputMessage.reset();
-    boost::asio::async_read(m_socket,
-                            boost::asio::buffer(m_inputMessage.getBuffer(), InputMessage::HEADER_LENGTH),
-                            std::bind(&Connection::onRecvHeader, shared_from_this(), std::placeholders::_1));*/
-
+        g_dispatcher.addTask(std::bind(m_recvCallback, m_recvBuffer, m_recvSize));
 }

src/framework/net/connection.h

@@ -26,14 +26,10 @@
 #define CONNECTION_H
 
 #include <global.h>
-
-#include <net/inputmessage.h>
-#include <net/outputmessage.h>
-
 #include <boost/asio.hpp>
 
 typedef std::function<void(boost::system::error_code&)> ErrorCallback;
-typedef std::function<void(InputMessage*)> RecvCallback;
+typedef std::function<void(uint8*, uint16)> RecvCallback;
 
 class Connection : public std::enable_shared_from_this<Connection>, boost::noncopyable
 {
@@ -43,7 +39,9 @@ public:
     static void poll();
 
     void connect(const std::string& host, uint16 port, const std::function<void()>& connectCallback);
-    void send(OutputMessage *outputMessage);
+    void send(uint8 *buffer, uint16 size);
+    void recv(uint16 bytes, uint32 timeout, const RecvCallback& callback);
+    void recv(const std::string& data, uint32 timeout, const RecvCallback& callback);
 
     void setErrorCallback(const ErrorCallback& errorCallback) { m_errorCallback = errorCallback; }
     void setRecvCallback(const RecvCallback& recvCallback) { m_recvCallback = recvCallback; }
@@ -52,27 +50,19 @@ public:
     void onResolve(const boost::system::error_code& error, boost::asio::ip::tcp::resolver::iterator endpointIterator);
     void onConnect(const boost::system::error_code& error);
     void onSend(const boost::system::error_code& error, size_t);
-    void onRecvHeader(const boost::system::error_code& error);
-    void onRecvData(const boost::system::error_code& error);
-
-    enum ConnectionState_t {
-        CONNECTION_STATE_IDLE = 0,
-        CONNECTION_STATE_RESOLVING,
-        CONNECTION_STATE_CONNECTING,
-        CONNECTION_STATE_CONNECTED
-    };
+    void onRecv(const boost::system::error_code& error);
 
 private:
     ErrorCallback m_errorCallback;
-    RecvCallback m_recvCallback;
     std::function<void()> m_connectCallback;
-    ConnectionState_t m_connectionState;
 
     boost::asio::deadline_timer m_timer;
     boost::asio::ip::tcp::resolver m_resolver;
     boost::asio::ip::tcp::socket m_socket;
-    InputMessage m_inputMessage;
 
+    uint8 m_recvBuffer[65536];
+    uint16 m_recvSize;
+    RecvCallback m_recvCallback;
 };
 
 typedef std::shared_ptr<Connection> ConnectionPtr;

src/framework/net/protocol.cpp

@@ -30,13 +30,12 @@ Protocol::Protocol() :
         m_connection(new Connection)
 {
     m_connection->setErrorCallback(std::bind(&Protocol::onError, this, std::placeholders::_1));
-    m_connection->setRecvCallback(std::bind(&Protocol::onRecv, this, std::placeholders::_1));
     m_xteaEncryptionEnabled = false;
 }
 
-void Protocol::connect(const std::string& host, uint16 port, const std::function<void()>& callback)
+void Protocol::connect(const std::string& host, uint16 port)
 {
-    m_connection->connect(host, port, callback);
+    m_connection->connect(host, port, std::bind(&Protocol::onConnect, asProtocol()));
 }
 
 void Protocol::send(OutputMessage *outputMessage)
@@ -56,30 +55,56 @@ void Protocol::send(OutputMessage *outputMessage)
     outputMessage->addU16(messageSize);
 
     // Send
-    m_connection->send(outputMessage);
+    m_connection->send(outputMessage->getBuffer(), outputMessage->getMessageSize());
 }
 
-void Protocol::onRecv(InputMessage *inputMessage)
+void Protocol::recv()
 {
-    uint32 checksum = getAdlerChecksum(inputMessage->getBuffer() + InputMessage::DATA_POS, inputMessage->getMessageSize() - InputMessage::CHECKSUM_LENGTH);
-    if(inputMessage->getU32() != checksum) {
+    m_inputMessage.reset();
+
+    m_connection->recv(InputMessage::HEADER_LENGTH, 2, std::bind(&Protocol::internalRecvHeader, asProtocol(), std::placeholders::_1, std::placeholders::_2));
+}
+
+void Protocol::internalRecvHeader(uint8 *buffer, uint16 size)
+{
+    memcpy(m_inputMessage.getBuffer() + InputMessage::HEADER_POS, buffer, size);
+
+    uint16 dataSize = m_inputMessage.getU16();
+    m_inputMessage.setMessageSize(dataSize);
+
+    m_connection->recv(dataSize, 5, std::bind(&Protocol::internalRecvData, asProtocol(), std::placeholders::_1, std::placeholders::_2));
+}
+
+void Protocol::internalRecvData(uint8 *buffer, uint16 size)
+{
+    memcpy(m_inputMessage.getBuffer() + InputMessage::CHECKSUM_POS, buffer, size);
+
+    uint32 checksum = getAdlerChecksum(m_inputMessage.getBuffer() + InputMessage::DATA_POS, m_inputMessage.getMessageSize() - InputMessage::CHECKSUM_LENGTH);
+    if(m_inputMessage.getU32() != checksum) {
         // error
         logError("Checksum is invalid.");
         return;
     }
 
     if(m_xteaEncryptionEnabled)
-        xteaDecrypt(inputMessage);
+        xteaDecrypt(&m_inputMessage);
+
+    onRecv(&m_inputMessage);
 }
 
 void Protocol::onError(const boost::system::error_code& err)
 {
+    std::stringstream message;
+
     logError("PROTOCOL ERROR: ", err.message());
+    message << "Boost error: " << err.message();
 
     // invalid hostname
     // connection timeouted
 
     // displays a dialog, finish protocol
+
+    callField("onError", message.str());
 }
 
 bool Protocol::xteaDecrypt(InputMessage *inputMessage)
@@ -163,4 +188,3 @@ uint32 Protocol::getAdlerChecksum(uint8 *buffer, uint16 size)
 
     return (b << 16) | a;
 }
-

src/framework/net/protocol.h

@@ -38,22 +38,32 @@
 
 //#define RSA "109120132967399429278860960508995541528237502902798129123468757937266291492576446330739696001110603907230888610072655818825358503429057592827629436413108566029093628212635953836686562675849720620786279431090218017681061521755056710823876476444260558147179707119674283982419152118103759076030616683978566631413"
 
+class Protocol;
+typedef std::shared_ptr<Protocol> ProtocolPtr;
+
 class Protocol : public LuaObject
 {
 public:
     Protocol();
 
-    void connect(const std::string& host, uint16 port, const std::function<void()>& callback);
+    void connect(const std::string& host, uint16 port);
     void send(OutputMessage *outputMessage);
+    void recv();
+    void internalRecvHeader(uint8 *buffer, uint16 size);
+    void internalRecvData(uint8 *buffer, uint16 size);
 
-    virtual void onRecv(InputMessage *inputMessage);
+    virtual void onConnect() = 0;
+    virtual void onRecv(InputMessage *inputMessage) = 0;
     virtual void onError(const boost::system::error_code& err);
 
+    ProtocolPtr asProtocol() { return std::static_pointer_cast<Protocol>(shared_from_this()); }
+
     virtual const char* getLuaTypeName() const { return "Protocol"; }
 
 protected:
     uint32 m_xteaKey[4];
     bool m_xteaEncryptionEnabled;
+    InputMessage m_inputMessage;
 
 private:
     bool xteaDecrypt(InputMessage *inputMessage);
@@ -63,6 +73,4 @@ private:
     ConnectionPtr m_connection;
 };
 
-typedef std::shared_ptr<Protocol> ProtocolPtr;
-
 #endif

src/protocollogin.cpp

@@ -41,7 +41,7 @@ void ProtocolLogin::login(const std::string& accountName, const std::string& acc
     //std::string host = "tecserver.zapto.org";
     uint16 port = 7171;
 
-    connect(host, port, std::bind(&ProtocolLogin::onConnect, asProtocolLogin()));
+    connect(host, port);
 }
 
 void ProtocolLogin::onConnect()
@@ -55,11 +55,11 @@ void ProtocolLogin::sendPacket()
 
     oMsg.addU8(0x01); // Protocol id
     oMsg.addU16(0x02);  // OS
-    oMsg.addU16(874); // Client version
+    oMsg.addU16(910); // Client version
 
-    oMsg.addU32(0x4DBAA20B); // Data Signature
-    oMsg.addU32(0x4DAD1A32); // Sprite Signature
-    oMsg.addU32(0x4DA2D2B5); // Picture Signature
+    oMsg.addU32(0x4E12DAFF); // Data Signature
+    oMsg.addU32(0x4E12DB27); // Sprite Signature
+    oMsg.addU32(0x4E119CBF); // Picture Signature
 
     oMsg.addU8(0); // First RSA byte must be 0x00 // 1
 
@@ -88,12 +88,12 @@ void ProtocolLogin::sendPacket()
     send(&oMsg);
 
     m_xteaEncryptionEnabled = true;
+
+    recv();
 }
 
 void ProtocolLogin::onRecv(InputMessage *inputMessage)
 {
-    Protocol::onRecv(inputMessage);
-
     while(!inputMessage->end()) {
         uint8 opt = inputMessage->getU8();
         logDebug("opt:",(uint)opt);