text: /*
   * Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
   *
   * 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.
   */
  
  #ifndef OUTPUTMESSAGE_H
  #define OUTPUTMESSAGE_H
  
  #include "declarations.h"
  #include <framework/luascript/luaobject.h>
  
  // @bindclass
  class OutputMessage : public LuaObject
  {
  public:
      enum {
          BUFFER_MAXSIZE = 1024,
          MAX_STRING_LENGTH = 65536,
          MAX_HEADER_SIZE = 8
      };
  
      OutputMessage();
  
      void reset();
  
      std::string getBuffer() { return std::string((char*)m_buffer + m_headerPos, m_messageSize); }
  
      void addU8(uint8 value);
      void addU16(uint16 value);
      void addU32(uint32 value);
      void addU64(uint64 value);
      void addString(const std::string& buffer);
      void addPaddingBytes(int bytes, uint8 byte = 0);
  
      void encryptRSA(int size, const std::string& key);
  
      uint16 getMessageSize() { return m_messageSize; }
  
  protected:
      uint8* getWriteBuffer() { return m_buffer + m_writePos; }
      uint8* getHeaderBuffer() { return m_buffer + m_headerPos; }
      uint8* getDataBuffer() { return m_buffer + MAX_HEADER_SIZE; }
  
      void writeChecksum();
      void writeMessageSize();
  
      friend class Protocol;
  
  private:
      bool canWrite(int bytes);
      void checkWrite(int bytes);
  
      uint16 m_headerPos;
      uint16 m_writePos;
      uint16 m_messageSize;
      uint8 m_buffer[BUFFER_MAXSIZE];
  };
  
  #endif
  