emsApplication/applications/ems_datahubs/eventhandler.cpp

#include "eventhandler.h"

#include <hv/hv.h>
#include <hv/hmain.h>
#include <hv/iniparser.h>
#include <hv/hloop.h>
#include <hv/hsocket.h>
#include <hv/hssl.h>

#include "kdefine.h"
#include "frame_define.h"
#include "openjson.h"
#include "iconv-utils.h"
#include "kutilities.h"

EventHandler::EventHandler()
{

}

EventHandler::~EventHandler()
{

}


void EventHandler::onRecvHandler(hio_t* io, void* buf, int readbytes)
{
    __USING_NAMESPACE_HJ__;

    char localaddrstr[SOCKADDR_STRLEN] = { 0 };
    char peeraddrstr[SOCKADDR_STRLEN] = { 0 };
    hlogi("### 1 ### on_recv fd=%d readbytes=%d [%s] <==== [%s]", hio_fd(io), readbytes,
        SOCKADDR_STR(hio_localaddr(io), localaddrstr),
        SOCKADDR_STR(hio_peeraddr(io), peeraddrstr));

    MessageFrame respFrame;
    if( readbytes > 0xFFFF - 1 )
    {
        hloge("too large data buffer to process: %d", readbytes);
        respFrame.setErrorFrame(ERR_INVALID_BUF_LEN);
        hio_write(io, (void*)&respFrame, sizeof respFrame);
        return;
    }
    
    hlogi("<=== decode OK [\n%s\n]", printHex(buf, readbytes).c_str());

    MessageFrame* pReadFrame = (MessageFrame*)buf;
    hlogi("on_recv fd=%d frame_len=%d [0x%x] ", hio_fd(io), pReadFrame->frame_len, pReadFrame->frame_len);

    if( pReadFrame->frame_len > 0xFFFF - 1 )
    {
        hloge("too big string buffer to process: %d, it should be less than %d", pReadFrame->frame_len, 0xFFFF);
        respFrame.setErrorFrame(ERR_INVALID_LEN);
        hio_write(io, (void*)&respFrame, sizeof respFrame);
        return;
    }

    if( Frame_DeviceData_Request == pReadFrame->frame_type )
    {
        hlogi("<=== reveive device data request");

        OpenJson json;

        CODING buf_code = GetCoding((unsigned char*)pReadFrame->frame_content, pReadFrame->frame_len);   //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD><C7B7><EFBFBD>utf-8

        hlogi("<=== recieve buffer coding is [%s]", buf_code== GBK ? "GBK": (buf_code == UTF8 ? "UTF8" : "UNKNOWN CODING"));

        //<2F><><EFBFBD>ｫ֡<EFBDAB><D6A1>֡<EFBFBD><D6A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>json<6F><6E>ʽ<EFBFBD><CABD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>mqtt_msg.h<><68>MessageData<74>ṹ<EFBFBD><E1B9B9><EFBFBD><EFBFBD>
        std::string msg((char*)pReadFrame->frame_content + 8, pReadFrame->frame_len - 8);

        if( buf_code == CODING::GBK
            || buf_code == CODING::UNKOWN )
        {
            std::string str_result;
            //ת<><D7AA>ΪUTF8
            if( !GBKToUTF8(msg, str_result) )
            {
                hloge("Failed to transfer code from GBK to UTF-8");
                respFrame.setErrorFrame(ERR_INVALID_UTF8);
                hio_write(io, (void*)&respFrame, sizeof respFrame);
                return;
            }

            hlogi("Successfuly transfer code from GBK to UTF-8!");
            msg = str_result;
        }

#ifdef _DEBUG
        hlogd("<=== recieve !!VALID!! mqtt pack len =[%d] data=[%s]", msg.length(), msg.c_str()); //<2F><><EFBFBD>ﻹ<EFBFBD>Ǻõ<C7BA>
#endif

        unsigned int len = msg.length();
        char* pTmp = new char[len];
        memcpy(pTmp, msg.c_str(), len);

        std::shared_ptr<char> ptr; //<2F>Ÿ<EFBFBD><C5B8><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>ʡ<EFBFBD><CAA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
        ptr.reset(pTmp);

        //hlogi("<=== decode OK, msg=[%s]", msg.c_str());

#if 0
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 17).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 18).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 19).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 20).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 21).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 22).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 23).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 24).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 25).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 26).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 27).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 28).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 29).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 30).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 31).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 32).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 33).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 34).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 61).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 62).c_str());
        hlogi("<=== decode OK [\n%s\n]", printHex(pTmp, 63).c_str());
#endif

        //hlogd("<=== decode OK [\n%s\n]", printHex(pTmp, len).c_str());

        try
        {
            if( !json.decode(msg) )
            {
                hloge("Failed to decode json string pack , length=%d", readbytes);
                respFrame.setErrorFrame(ERR_INVALID_JSON_FMT);
                hio_write(io, (void*)&respFrame, sizeof respFrame);
                return;
            }

            std::string fsucode = json["FsuCode"].s();
            std::string msg_type = json["type"].s();
            std::string timestamp = get_current_timestamp(); // json["TimeStamp"].s();

            if( fsucode.length() == 0 )
            {
                //delete[] pTmp;
                hlogw("!!empty fsucode recieved!");
                respFrame.setErrorFrame(ERR_INVALID_FSUCODE);
                hio_write(io, (void*)&respFrame, sizeof respFrame);
                return;
            }

            hlogi("<=== decode OK, recieve fsucode=[%s] type=[%s] ts=[%s]", fsucode.c_str(), msg_type.c_str(), timestamp.c_str());
            
            hio_write(io, (void*)&respFrame, sizeof respFrame);

#ifdef _DEBUG
            hlogd("<<<<Check Mem after decode here>>>> \n[\n%s\n]\n", printHex(pTmp, len).c_str());
#endif

            std::string out_compress;

            int zip_ret = 0;
            if( (zip_ret = CompressString(pTmp, len, out_compress, Z_DEFAULT_COMPRESSION)) != Z_OK )
            {
                hloge("Failed to compress source data, zip return value %d", zip_ret);
                return;
            }

            hlogd("<<<<Compress result: string size from original [%d] to [%d]", len, out_compress.size());

#ifdef _DEBUG
            hlogd("<<<<Compressed string here>>>> \n[\n%s\n]\n", printHex(out_compress.c_str(), out_compress.size()).c_str());
#endif
            //std::string msg2(pTmp, len);

            if( msg_type == "gateway-data"
                || msg_type == "gateway-alarmdata"
                || msg_type == "gateway-writedata"
                || msg_type == "gateway-readdata"
                || msg_type == "web-write"
                || msg_type == "web-alarm" )
            {
                auto& IdCodeContent = json["IdCodeContent"];
                if( IdCodeContent.size() <= 0 )
                {
                    //delete[] pTmp;
                    hloge("invalid IdCodeContent's size: %d", IdCodeContent.size());
                    return;
                }

                auto& pNode = IdCodeContent[0]; //<2F><><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ڵ<EFBFBD>
                std::string oid = pNode["OID"].s();

                //OpDatabase::getInstance()->InsertMessage(timestamp, msg_type, fsucode, out_compress, (int)pData->mqtt_topic, (int)pData->device_id);
            }

            if( msg_type == "web-read" )
            {
                auto& IdCodeContent = json["IdCodes"];
                if( IdCodeContent.size() <= 0 )
                {
                    hloge("invalid IdCodes's size: %d", IdCodeContent.size());
                    //delete[] pTmp;
                    return;
                }

                auto& pNode = IdCodeContent[0]; //<2F><><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ڵ<EFBFBD>
                std::string oid = pNode.s();

                //OpDatabase::getInstance()->InsertMessage(timestamp, msg_type, fsucode, out_compress, (int)pData->mqtt_topic, (int)pData->device_id);
            }
            //delete[] pTmp;
        }
        catch( const char* errMsg )
        {
            hloge("Failed to decode json string pack , catch error:%s", errMsg);
            respFrame.setErrorFrame(ERR_INVALID_JSON_FMT);
            hio_write(io, (void*)&respFrame, sizeof respFrame);
            return;
        }

    }
}