teamtalk_websocket_server/WebSocketConn.cpp at master · xiaominfc/teamtalk_websocket_server · GitHub

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/*
 * =====================================================================================
 *
 *       Filename:  WebSocketConn.cpp
 *
 *    Description:
 *
 *        Version:  1.0
 *        Created:  06/23/16 09:59:19
 *       Revision:  none
 *       Compiler:  gcc
 *
 *         Author:  YOUR NAME (),
 *   Organization:
 *
 * =====================================================================================
 */
#include <WebSocketConn.h>

void WebSocketConn::OnRead()
{
    if(m_socket_type == NORMALSOCKET) {
        CMsgConn::OnRead();
        return;
    }
    for (;;)
    {
        uint32_t free_buf_len = m_in_buf.GetAllocSize() - m_in_buf.GetWriteOffset();
        if (free_buf_len < READ_BUF_SIZE)
            m_in_buf.Extend(READ_BUF_SIZE);
        int ret = netlib_recv(m_handle, m_in_buf.GetBuffer() + m_in_buf.GetWriteOffset(), READ_BUF_SIZE);
        if (ret <= 0)
            break;
        m_recv_bytes += ret;
        m_in_buf.IncWriteOffset(ret);
        m_last_recv_tick = get_tick_count();
    }
/*
    if(m_websocket == NULL)
    {
        m_websocket = new WebSocket;
    }
*/

    WebSocket websocket;
    if(m_websocket_inited)
    {
        CImPdu *pPdu = NULL;

        int data_size = m_in_buf.GetWriteOffset();
        unsigned char *dataBuffer = (unsigned char*)malloc(data_size);
        try{
            int data_length = 0;
            int use_length = 0;
            int read_count = 0;
            WebSocketFrameType frameType = websocket.getFrame(m_in_buf.GetBuffer() ,m_in_buf.GetWriteOffset() ,dataBuffer ,data_size, data_length,use_length);
            //log("len:%d use:%d",m_in_buf.GetWriteOffset(),use_length);
            while(frameType == BINARY_FRAME || frameType == TEXT_FRAME)
            {
                read_count = read_count + use_length;
                while((pPdu = CImPdu::ReadPdu((uchar_t*)dataBuffer,data_length)))
                {
                    uint32_t pdu_len = pPdu->GetLength();
                    HandlePdu(pPdu);
                    delete pPdu;
                    pPdu = NULL;
                    break;
                }
                m_in_buf.Read(NULL, use_length);
                if(read_count >= data_size) {
                    break;
                }
                data_length = 0;
                use_length = 0;
                frameType = websocket.getFrame(m_in_buf.GetBuffer(),m_in_buf.GetWriteOffset() ,dataBuffer ,data_size, data_length,use_length);
            }

            //m_in_buf.~CSimpleBuffer();
        }catch(CPduException& ex)
        {

        }
        free(dataBuffer);

    }else
    {
        WebSocketFrameType type = websocket.parseHandshake(m_in_buf.GetBuffer(),m_in_buf.GetWriteOffset());
        if(type == OPENING_FRAME) {
            log("this is a websocket");
            string answer = websocket.answerHandshake();
            CMsgConn::Send((void *)answer.c_str(), answer.size());
            m_in_buf.Read(NULL, m_in_buf.GetWriteOffset());
          //  m_in_buf.~CSimpleBuffer();
            m_websocket_inited = true;
        }else {
            m_socket_type = NORMALSOCKET;
            log("this is a normal socket");
            CImPdu *pPdu = NULL;
            try
            {
                while ((pPdu = CImPdu::ReadPdu(m_in_buf.GetBuffer(), m_in_buf.GetWriteOffset())))
                {
                    uint32_t pdu_len = pPdu->GetLength();
                    HandlePdu(pPdu);
                    m_in_buf.Read(NULL, pdu_len);
                    delete pPdu;
                    pPdu = NULL;
                }
            } catch (CPduException& ex) {
                log("!!!catch exception, sid=%u, cid=%u, err_code=%u, err_msg=%s, close the connection ",
                    ex.GetServiceId(), ex.GetCommandId(), ex.GetErrorCode(), ex.GetErrorMsg());
                if (pPdu) {
                    delete pPdu;
                    pPdu = NULL;
                }
                OnClose();
            }
            //OnClose();
        }
    }
}


int WebSocketConn::Send(void *data, int len)
{
    if(m_socket_type == NORMALSOCKET){
        return CMsgConn::Send(data ,len);
    }
    WebSocket websocket;
    unsigned char* outData = (unsigned char*)malloc(len + 14);
    int out_len = websocket.makeFrame(BINARY_FRAME, (unsigned char*)data,len,outData ,len + 14);
    int result =  CMsgConn::Send(outData ,out_len);
    free(outData);
    return result;
}