Method handshakeResponse

native/cocos/network/SocketIO.cpp:388–496

}

void SIOClientImpl::handshakeResponse(HttpClient * /*sender*/, HttpResponse *response) {
    CC_LOG_INFO("SIOClientImpl::handshakeResponse() called");

    if (0 != strlen(response->getHttpRequest()->getTag())) {
        CC_LOG_INFO("%s completed", response->getHttpRequest()->getTag());
    }

    auto statusCode = static_cast<int32_t>(response->getResponseCode());
    char statusString[64] = {};
    sprintf(statusString, "HTTP Status Code: %d, tag = %s", statusCode, response->getHttpRequest()->getTag());
    CC_LOG_INFO("response code: %ld", statusCode);

    if (!response->isSucceed() || statusCode >= 400) {
        CC_LOG_ERROR("SIOClientImpl::handshake() failed");
        CC_LOG_ERROR("error buffer: %s", response->getErrorBuffer());

        for (auto &client : _clients) {
            client.second->getDelegate()->onError(client.second, response->getErrorBuffer());
        }

        onClose(nullptr, 1015, "handshake_failure", false);
        return;
    }

    CC_LOG_INFO("SIOClientImpl::handshake() succeeded");

    ccstd::vector<char> *buffer = response->getResponseData();
    std::stringstream s;
    s.str("");

    for (const auto &iter : *buffer) {
        s << iter;
    }

    CC_LOG_INFO("SIOClientImpl::handshake() dump data: %s", s.str().c_str());

    ccstd::string res = s.str();
    ccstd::string sid;
    int heartbeat = 0;
    int timeout = 0;

    if (res.find('}') != ccstd::string::npos) {
        CC_LOG_INFO("SIOClientImpl::handshake() Socket.IO 1.x detected");
        _version = SocketIOPacket::SocketIOVersion::V10X;
        // sample: 97:0{"sid":"GMkL6lzCmgMvMs9bAAAA","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}
        //         96:0{"sid":"jzrjDlQusSUxLTd3AAAV","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000}2:40
        ccstd::string::size_type a;
        ccstd::string::size_type b;
        a = res.find('{');
        ccstd::string temp = res.substr(a, res.size() - a);

        // find the sid
        a = temp.find(':');
        b = temp.find(',');

        sid = temp.substr(a + 2, b - (a + 3));

        temp = temp.erase(0, b + 1);