cocos-enhance-kit/cocos2d-x/cocos/scripting/js-bindings/manual/jsb_xmlhttprequest.cpp

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//
//  jsb_XMLHttpRequest.cpp
//  cocos2d_js_bindings
//
//  Created by James Chen on 5/15/17.
//
//
#include "base/ccConfig.h"
#include "jsb_xmlhttprequest.hpp"
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_IOS || CC_TARGET_PLATFORM == CC_PLATFORM_MAC || CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
#include <unordered_map>
#include <string>
#include <functional>
#include <algorithm>
#include <sstream>
#include "cocos/scripting/js-bindings/jswrapper/SeApi.h"
#include "cocos/scripting/js-bindings/manual/jsb_conversions.hpp"
#include "cocos/network/HttpClient.h"
#include "cocos/base/CCData.h"
#include "platform/CCApplication.h"

using namespace cocos2d;
using namespace cocos2d::network;

namespace
{
std::unordered_map<int, std::string> _httpStatusCodeMap = {
    {100, "Continue"},
    {101, "Switching Protocols"},
    {102, "Processing"},
    {200, "OK"},
    {201, "Created"},
    {202, "Accepted"},
    {203, "Non-authoritative Information"},
    {204, "No Content"},
    {205, "Reset Content"},
    {206, "Partial Content"},
    {207, "Multi-Status"},
    {208, "Already Reported"},
    {226, "IM Used"},
    {300, "Multiple Choices"},
    {301, "Moved Permanently"},
    {302, "Found"},
    {303, "See Other"},
    {304, "Not Modified"},
    {305, "Use Proxy"},
    {307, "Temporary Redirect"},
    {308, "Permanent Redirect"},
    {400, "Bad Request"},
    {401, "Unauthorized"},
    {402, "Payment Required"},
    {403, "Forbidden"},
    {404, "Not Found"},
    {405, "Method Not Allowed"},
    {406, "Not Acceptable"},
    {407, "Proxy Authentication Required"},
    {408, "Request Timeout"},
    {409, "Conflict"},
    {410, "Gone"},
    {411, "Length Required"},
    {412, "Precondition Failed"},
    {413, "Payload Too Large"},
    {414, "Request-URI Too Long"},
    {415, "Unsupported Media Type"},
    {416, "Requested Range Not Satisfiable"},
    {417, "Expectation Failed"},
    {418, "I'm a teapot"},
    {421, "Misdirected Request"},
    {422, "Unprocessable Entity"},
    {423, "Locked"},
    {424, "Failed Dependency"},
    {426, "Upgrade Required"},
    {428, "Precondition Required"},
    {429, "Too Many Requests"},
    {431, "Request Header Fields Too Large"},
    {444, "Connection Closed Without Response"},
    {451, "Unavailable For Legal Reasons"},
    {499, "Client Closed Request"},
    {500, "Internal Server Error"},
    {501, "Not Implemented"},
    {502, "Bad Gateway"},
    {503, "Service Unavailable"},
    {504, "Gateway Timeout"},
    {505, "HTTP Version Not Supported"},
    {506, "Variant Also Negotiates"},
    {507, "Insufficient Storage"},
    {508, "Loop Detected"},
    {510, "Not Extended"},
    {511, "Network Authentication Required"},
    {599, "Network Connect Timeout Error"}};
}

class XMLHttpRequest : public Ref
{
public:

    // Ready States: https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/readyState
    enum class ReadyState : char
    {
        UNSENT = 0, // Client has been created. open() not called yet.
        OPENED = 1, // open() has been called.
        HEADERS_RECEIVED = 2, // send() has been called, and headers and status are available.
        LOADING = 3, // Downloading; responseText holds partial data.
        DONE = 4 // The operation is complete.
    };

    enum class ResponseType : char
    {
        STRING,
        ARRAY_BUFFER,
        BLOB,
        DOCUMENT,
        JSON
    };

    std::function<void()> onloadstart;
    std::function<void()> onload;
    std::function<void()> onloadend;
    std::function<void()> onreadystatechange;
    std::function<void()> onabort;
    std::function<void()> onerror;
    std::function<void()> ontimeout;

    XMLHttpRequest();


    bool open(const std::string& method, const std::string& url);
    void send();
    void sendString(const std::string& str);
    void sendBinary(const cocos2d::Data& data);

    void setRequestHeader(const std::string& key, const std::string& value);
    std::string getAllResponseHeaders() const;
    std::string getResonpseHeader(const std::string& key) const;

    ReadyState getReadyState() const { return _readyState; }
    uint16_t getStatus() const { return _status; }
    const std::string& getStatusText() const { return _statusText; }
    const std::string& getResponseText() const { return _responseText; }
    const cocos2d::Data& getResponseData() const { return _responseData; }
    ResponseType getResponseType() const { return _responseType; }
    void setResponseType(ResponseType type) { _responseType = type; }

    void overrideMimeType(const std::string &mimeType);
    std::string getMimeType() const;

    void setTimeout(unsigned long timeoutInMilliseconds);
    unsigned long getTimeout() const;

    void abort();

    bool isDiscardedByReset() const { return _isDiscardedByReset; }

private:
    virtual ~XMLHttpRequest();

    void setReadyState(ReadyState readyState);
    void getHeader(const std::string& header);
    void onResponse(cocos2d::network::HttpClient* client, cocos2d::network::HttpResponse* response);

    void setHttpRequestData(const char* data, size_t len);
    void sendRequest();
    void setHttpRequestHeader();

    std::unordered_map<std::string, std::string> _httpHeader;
    std::unordered_map<std::string, std::string> _requestHeader;

    std::string _url;
    std::string _method;
    std::string _responseText;
    std::string _responseXML;
    std::string _statusText;
    std::string _overrideMimeType;

    cocos2d::Data _responseData;

    cocos2d::network::HttpRequest*  _httpRequest;
//    cocos2d::EventListenerCustom* _resetDirectorListener;

    unsigned long _timeoutInMilliseconds;
    uint16_t _status;

    ResponseType _responseType;
    ReadyState _readyState;

    bool _withCredentialsValue;
    bool _errorFlag;
    bool _isAborted;
    bool _isLoadStart;
    bool _isLoadEnd;
    bool _isDiscardedByReset;
    bool _isTimeout;
    bool _isSending;
};

XMLHttpRequest::XMLHttpRequest()
: onloadstart(nullptr)
, onload(nullptr)
, onloadend(nullptr)
, onreadystatechange(nullptr)
, onabort(nullptr)
, onerror(nullptr)
, ontimeout(nullptr)
, _httpRequest(new (std::nothrow) HttpRequest())
, _timeoutInMilliseconds(0UL)
, _status(0)
, _responseType(ResponseType:: STRING)
, _readyState(ReadyState::UNSENT)
, _withCredentialsValue(false)
, _errorFlag(false)
, _isAborted(false)
, _isLoadStart(false)
, _isLoadEnd(false)
, _isDiscardedByReset(false)
, _isTimeout(false)
, _isSending(false)
{
}

XMLHttpRequest::~XMLHttpRequest()
{
    Application::getInstance()->getScheduler()->unscheduleAllForTarget(this);
    // Avoid HttpClient response call a released object!
    _httpRequest->setResponseCallback(nullptr);
    CC_SAFE_RELEASE(_httpRequest);
}

bool XMLHttpRequest::open(const std::string& method, const std::string& url)
{
    if (_readyState != ReadyState::UNSENT)
        return false;

    _method = method;
    _url = url;

    HttpRequest::Type requestType = HttpRequest::Type::UNKNOWN;

    if (_method == "get" || _method == "GET")
        requestType = HttpRequest::Type::GET;
    else if (_method == "post" || _method == "POST")
        requestType = HttpRequest::Type::POST;
    else if (_method == "put" || _method == "PUT")
        requestType = HttpRequest::Type::PUT;
    else if (_method == "head" || _method == "HEAD")
        requestType = HttpRequest::Type::HEAD;
    else if (_method == "delete" || _method == "DELETE")
        requestType = HttpRequest::Type::DELETE;

    CCASSERT(requestType != HttpRequest::Type::UNKNOWN, (std::string("XMLHttpRequest.open: Unknown method: ") + method).c_str());

    _httpRequest->setRequestType(requestType);
    _httpRequest->setUrl(_url);

    _status = 0;
    _isAborted = false;
    _isTimeout = false;

    setReadyState(ReadyState::OPENED);

    return true;
}

void XMLHttpRequest::send()
{
    sendRequest();
}

void XMLHttpRequest::sendString(const std::string& str)
{
    setHttpRequestData(str.c_str(), str.length());
    sendRequest();
}

void XMLHttpRequest::sendBinary(const Data& data)
{
    setHttpRequestData((const char*)data.getBytes(), data.getSize());
    sendRequest();
}

void XMLHttpRequest::setTimeout(unsigned long timeoutInMilliseconds)
{
    _timeoutInMilliseconds = timeoutInMilliseconds;
    _httpRequest->setTimeout(timeoutInMilliseconds / 1000.0f + 2.0f); // Add 2 seconds more to ensure the timeout scheduler is invoked before http response.
}

unsigned long XMLHttpRequest::getTimeout() const
{
    return _httpRequest->getTimeout() * 1000.0f;
}

void XMLHttpRequest::abort()
{
    if (!_isLoadStart)
        return;

    _isAborted = true;
    _isSending = false;

    setReadyState(ReadyState::DONE);

    if (onabort != nullptr)
    {
        onabort();
    }

    _isLoadEnd = true;
    if (onloadend != nullptr)
    {
        onloadend();
    }
    
    _readyState = ReadyState::UNSENT;
    
    //request is aborted, no more callback needed.
    _httpRequest->setResponseCallback(nullptr);
}

void XMLHttpRequest::setReadyState(ReadyState readyState)
{
    if (_readyState != readyState)
    {
        _readyState = readyState;
        if (onreadystatechange != nullptr)
        {
            onreadystatechange();
        }
    }
}

void XMLHttpRequest::getHeader(const std::string& header)
{
    // check for colon.
    size_t found_header_field = header.find_first_of(":");

    if (found_header_field != std::string::npos)
    {
        // Found a header field.
        std::string http_field;
        std::string http_value;

        http_field = header.substr(0,found_header_field);
        http_value = header.substr(found_header_field+1, header.length());

        // Get rid of all \n
        if (!http_value.empty() && http_value[http_value.size() - 1] == '\n') {
            http_value.erase(http_value.size() - 1);
        }

        // Get rid of leading space (header is field: value format)
        if (!http_value.empty() && http_value[0] == ' ') {
            http_value.erase(0, 1);
        }

        // Transform field name to lower case as they are case-insensitive
        std::transform(http_field.begin(), http_field.end(), http_field.begin(), ::tolower);

        _httpHeader[http_field] = http_value;

    }
    else
    {
        // Get Header and Set StatusText
        // Split String into Tokens
        if (header.find("HTTP") == 0)
        {
            int _v1, _v2, code = 0;
            char statusText[64] = {0};
            sscanf(header.c_str(), "HTTP/%d.%d %d %63[^\n]", &_v1, &_v2, &code, statusText);
            _statusText = statusText;
            if(_statusText.empty())
            {
                auto itCode = _httpStatusCodeMap.find(code);
                if(itCode != _httpStatusCodeMap.end())
                {
                    _statusText = itCode->second;
                }
                else 
                {
                    CCLOG("XMLHTTPRequest invalid response code %d", code);
                }
            }
        }
    }
}

void XMLHttpRequest::onResponse(HttpClient* client, HttpResponse* response)
{
    Application::getInstance()->getScheduler()->unscheduleAllForTarget(this);
    _isSending = false;
    
    if(_isTimeout) {
        _isLoadEnd = true;
        if(onloadend)
        {
            onloadend();
        }
        return;
    }
    
    if (_isAborted || _readyState == ReadyState::UNSENT)
    {
        return;
    }

    std::string tag = response->getHttpRequest()->getTag();
    if (!tag.empty())
    {
        SE_LOGD("XMLHttpRequest::onResponse, %s completed\n", tag.c_str());
    }

    long statusCode = response->getResponseCode();
    char statusString[64] = {0};
    sprintf(statusString, "HTTP Status Code: %ld, tag = %s", statusCode, tag.c_str());

    _responseText.clear();
    _responseData.clear();

    if (!response->isSucceed())
    {
        std::string errorBuffer = response->getErrorBuffer();
        SE_LOGD("Response failed, error buffer: %s\n", errorBuffer.c_str());
        if (statusCode == 0 || statusCode == -1)
        {
            _errorFlag = true;
            _status = 0;
            _statusText.clear();
            if (onerror != nullptr)
            {
                onerror();
            }

            _isLoadEnd = true;
            if (onloadend != nullptr)
            {
                onloadend();
            }
            return;
        }
    }

    // set header
    std::vector<char> *headers = response->getResponseHeader();

    std::string header(headers->begin(), headers->end());

    std::istringstream stream(header);
    std::string line;
    while(std::getline(stream, line))
    {
        getHeader(line);
    }

    /** get the response data **/
    std::vector<char>* buffer = response->getResponseData();

    if (_responseType == ResponseType::STRING || _responseType == ResponseType::JSON)
    {
        _responseText.append(buffer->data(), buffer->size());
    }
    else
    {
        _responseData.copy((unsigned char*)buffer->data(), buffer->size());
    }

    _status = statusCode;

    setReadyState(ReadyState::DONE);

    if (onload != nullptr)
    {
        onload();
    }

    _isLoadEnd = true;
    if (onloadend != nullptr)
    {
        onloadend();
    }
}

void XMLHttpRequest::overrideMimeType(const std::string &mimeType)
{
    _overrideMimeType = mimeType;
}

std::string XMLHttpRequest::getMimeType() const
{
    if (!_overrideMimeType.empty()) {
        return _overrideMimeType;
    }
    auto contentType = getResonpseHeader("Content-Type");
    return contentType.empty() ? "text" : contentType;
}

void XMLHttpRequest::sendRequest()
{
    if(_isSending)
    {
        //ref https://xhr.spec.whatwg.org/#the-send()-method
        //TODO: if send() flag is set, an exception should be thrown out.
        return;
    }
    _isSending = true;
    _isTimeout = false;
    if (_timeoutInMilliseconds > 0)
    {
        Application::getInstance()->getScheduler()->schedule([this](float dt){
            if (ontimeout != nullptr)
                ontimeout();
            _isTimeout = true;
            _readyState = ReadyState::UNSENT;
        }, this, _timeoutInMilliseconds / 1000.0f, 0, 0.0f, false, "XMLHttpRequest");
    }
    setHttpRequestHeader();

    _httpRequest->setResponseCallback(CC_CALLBACK_2(XMLHttpRequest::onResponse, this));
    cocos2d::network::HttpClient::getInstance()->sendImmediate(_httpRequest);

    if (onloadstart != nullptr)
    {
        onloadstart();
    }

    _isLoadStart = true;
}

void XMLHttpRequest::setHttpRequestData(const char* data, size_t len)
{
    if (len > 0 &&
        (_method == "post" || _method == "POST" || _method == "put" || _method == "PUT"))
    {
        _httpRequest->setRequestData(data, len);
    }
}

void XMLHttpRequest::setRequestHeader(const std::string& key, const std::string& value)
{
    std::stringstream header_s;
    std::stringstream value_s;
    std::string header;

    auto iter = _requestHeader.find(key);

    // Concatenate values when header exists.
    if (iter != _requestHeader.end())
    {
        value_s << iter->second << "," << value;
    }
    else
    {
        value_s << value;
    }

    _requestHeader[key] = value_s.str();
}

std::string XMLHttpRequest::getAllResponseHeaders() const
{
    std::stringstream responseheaders;
    std::string responseheader;

    for (auto it = _httpHeader.begin(); it != _httpHeader.end(); ++it)
    {
        responseheaders << it->first << ": " << it->second << "\n";
    }

    responseheader = responseheaders.str();
    return responseheader;
}

std::string XMLHttpRequest::getResonpseHeader(const std::string& key) const
{
    std::string ret;
    std::string value = key;
    std::transform(value.begin(), value.end(), value.begin(), ::tolower);

    auto iter = _httpHeader.find(value);
    if (iter != _httpHeader.end())
    {
        ret = iter->second;
    }
    return ret;
}

void XMLHttpRequest::setHttpRequestHeader()
{
    std::vector<std::string> header;

    for (auto it = _requestHeader.begin(); it != _requestHeader.end(); ++it)
    {
        const char* first = it->first.c_str();
        const char* second = it->second.c_str();
        size_t len = sizeof(char) * (strlen(first) + 3 + strlen(second));
        char* test = (char*) malloc(len);
        memset(test, 0, len);

        strcpy(test, first);
        strcpy(test + strlen(first) , ": ");
        strcpy(test + strlen(first) + 2, second);

        header.push_back(test);

        free(test);

    }

    if (!header.empty())
    {
        _httpRequest->setHeaders(header);
    }
}


se::Class* __jsb_XMLHttpRequest_class = nullptr;


static bool XMLHttpRequest_finalize(se::State& s)
{
    XMLHttpRequest* request = (XMLHttpRequest*)s.nativeThisObject();
    SE_LOGD("XMLHttpRequest_finalize, %p ... \n", request);
    if (request->getReferenceCount() == 1)
    {
        request->autorelease();
    }
    else
    {
        request->release();
    }
    return true;
}
SE_BIND_FINALIZE_FUNC(XMLHttpRequest_finalize)


static bool XMLHttpRequest_constructor(se::State& s)
{
    XMLHttpRequest* request = new XMLHttpRequest();
    s.thisObject()->setPrivateData(request);

    se::Value thiz(s.thisObject());

    auto cb = [thiz](const char* eventName){
        se::ScriptEngine::getInstance()->clearException();
        se::AutoHandleScope hs;
        
        se::Object* thizObj = thiz.toObject();

        se::Value func;
        if (thizObj->getProperty(eventName, &func) && func.isObject() && func.toObject()->isFunction())
        {
            func.toObject()->call(se::EmptyValueArray, thizObj);
        }
    };
    
    request->onloadstart = [=](){
        if (!request->isDiscardedByReset())
        {
            thiz.toObject()->root();
            cb("onloadstart");
        }
    };
    request->onload = [=](){
        if (!request->isDiscardedByReset())
        {
            cb("onload");
        }
    };
    request->onloadend = [=](){
        if (!request->isDiscardedByReset())
        {
//            SE_LOGD("XMLHttpRequest (%p) onloadend ...\n", request);
            cb("onloadend");
            thiz.toObject()->unroot();
        }
        else
        {
            SE_LOGD("XMLHttpRequest (%p) onloadend after restart ScriptEngine.\n", request);
            request->release();
        }
    };
    request->onreadystatechange = [=](){
        if (!request->isDiscardedByReset())
        {
            cb("onreadystatechange");
        }
    };
    request->onabort = [=](){
        if (!request->isDiscardedByReset())
        {
            cb("onabort");
        }
    };
    request->onerror = [=](){
        if (!request->isDiscardedByReset())
        {
            cb("onerror");
        }
    };
    request->ontimeout = [=](){
        if (!request->isDiscardedByReset())
        {
            cb("ontimeout");
        }
    };
    return true;
}
SE_BIND_CTOR(XMLHttpRequest_constructor, __jsb_XMLHttpRequest_class, XMLHttpRequest_finalize)

static bool XMLHttpRequest_open(se::State& s)
{
    const auto& args = s.args();
    int argc = (int)args.size();
    if (argc >= 2)
    {
        XMLHttpRequest* request = (XMLHttpRequest*)s.nativeThisObject();
        bool ok = false;
        std::string method;
        ok = seval_to_std_string(args[0], &method);
        SE_PRECONDITION2(ok, false, "args[0] isn't a string.");
        std::string url;
        ok = seval_to_std_string(args[1], &url);
        SE_PRECONDITION2(ok, false, "args[1] isn't a string.");
        bool ret = request->open(method, url);
        s.rval().setBoolean(ret);
        return true;
    }

    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting >=2", (int)argc);
    return false;
}
SE_BIND_FUNC(XMLHttpRequest_open)

static bool XMLHttpRequest_abort(se::State& s)
{
    XMLHttpRequest* request = (XMLHttpRequest*)s.nativeThisObject();
    request->abort();
    return true;
}
SE_BIND_FUNC(XMLHttpRequest_abort)

static bool XMLHttpRequest_send(se::State& s)
{
    const auto& args = s.args();
    size_t argc = args.size();
    XMLHttpRequest* request = (XMLHttpRequest*)s.nativeThisObject();

    if (argc == 0)
    {
        request->send();
    }
    else if (argc > 0)
    {
        const auto& arg0 = args[0];
        if (arg0.isNullOrUndefined())
        {
            request->send();
        }
        else if (arg0.isString())
        {
            request->sendString(arg0.toString());
        }
        else if (arg0.isObject())
        {
            se::Object* obj = arg0.toObject();

            if (obj->isTypedArray())
            {
                uint8_t* ptr = nullptr;
                size_t len = 0;
                if (obj->getTypedArrayData(&ptr, &len))
                {
                    Data data;
                    data.copy(ptr, len);
                    request->sendBinary(data);
                }
                else
                {
                    SE_REPORT_ERROR("Failed to get data of TypedArray!");
                    return false;
                }
            }
            else if (obj->isArrayBuffer())
            {
                uint8_t* ptr = nullptr;
                size_t len = 0;
                if (obj->getArrayBufferData(&ptr, &len))
                {
                    Data data;
                    data.copy(ptr, len);
                    request->sendBinary(data);
                }
                else
                {
                    SE_REPORT_ERROR("Failed to get data of ArrayBufferObject!");
                    return false;
                }
            }
            else
            {
                SE_REPORT_ERROR("args[0] isn't a typed array or an array buffer");
                return false;
            }
        }
        else
        {
            const char* typeName = "UNKNOWN";
            if (arg0.isBoolean())
                typeName = "boolean";
            else if (arg0.isNumber())
                typeName = "number";

            SE_REPORT_ERROR("args[0] type: %s isn't supported!", typeName);
            return false;
        }
    }

    return true;
}
SE_BIND_FUNC(XMLHttpRequest_send)

static bool XMLHttpRequest_setRequestHeader(se::State& s)
{
    const auto& args = s.args();
    size_t argc = args.size();

    if (argc >= 2)
    {
        XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
        std::string key;
        bool ok = seval_to_std_string(args[0], &key);
        SE_PRECONDITION2(ok, false, "args[0] couldn't be converted to string.");
        std::string value;
        ok = seval_to_std_string(args[1], &value);
        SE_PRECONDITION2(ok, false, "args[1] couldn't be converted to string.");
        xhr->setRequestHeader(key, value);
        return true;
    }

    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting >=2", (int)argc);
    return false;
}
SE_BIND_FUNC(XMLHttpRequest_setRequestHeader)

static bool XMLHttpRequest_getAllResponseHeaders(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    std::string headers = xhr->getAllResponseHeaders();
    s.rval().setString(headers);
    return true;
}
SE_BIND_FUNC(XMLHttpRequest_getAllResponseHeaders)

static bool XMLHttpRequest_getResonpseHeader(se::State& s)
{
    const auto& args = s.args();
    size_t argc = args.size();
    if (argc > 0)
    {
        XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
        std::string key;
        bool ok = seval_to_std_string(args[0], &key);
        SE_PRECONDITION2(ok, false, "args[0] couldn't be converted to string.");
        std::string header = xhr->getResonpseHeader(key);
        s.rval().setString(header);
        return true;
    }

    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting > 0", (int)argc);
    return false;
}
SE_BIND_FUNC(XMLHttpRequest_getResonpseHeader)

static bool XMLHttpRequest_overrideMimeType(se::State& s)
{
    const auto& args = s.args();
    int argc = (int)args.size();
    if(argc > 0 && args[0].isString())
    {
        std::string mimeType;
        seval_to_std_string(args[0], &mimeType);
        XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
        xhr->overrideMimeType(mimeType);
    }
    return true;
}
SE_BIND_FUNC(XMLHttpRequest_overrideMimeType)

static bool XMLHttpRequest_getMIMEType(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    auto type = xhr->getMimeType();
    s.rval().setString(type);
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getMIMEType)

// getter

static bool XMLHttpRequest_getReadyState(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    s.rval().setInt32((int32_t)xhr->getReadyState());
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getReadyState)

static bool XMLHttpRequest_getStatus(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    s.rval().setInt32((int32_t)xhr->getStatus());
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getStatus)

static bool XMLHttpRequest_getStatusText(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    s.rval().setString(xhr->getStatusText());
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getStatusText)

static bool XMLHttpRequest_getResponseText(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    s.rval().setString(xhr->getResponseText());
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getResponseText)

static bool XMLHttpRequest_getResponseXML(se::State& s)
{
    // DOM API is not fully supported in cocos2d-x-lite.
    // `.responseXML` requires a document object that is not possible to fulfill. 
    s.rval().setNull();
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getResponseXML)

static bool XMLHttpRequest_getResponse(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();

    if (xhr->getResponseType() == XMLHttpRequest::ResponseType::STRING)
    {
        s.rval().setString(xhr->getResponseText());
    }
    else
    {
        if (xhr->getReadyState() != XMLHttpRequest::ReadyState::DONE)
        {
            s.rval().setNull();
        }
        else
        {
            if (xhr->getResponseType() == XMLHttpRequest::ResponseType::JSON)
            {
                const std::string& jsonText = xhr->getResponseText();
                se::HandleObject seObj(se::Object::createJSONObject(jsonText));
                if (!seObj.isEmpty())
                {
                    s.rval().setObject(seObj);
                }
                else
                {
                    s.rval().setNull();
                }
            }
            else if (xhr->getResponseType() == XMLHttpRequest::ResponseType::ARRAY_BUFFER)
            {
                const Data& data = xhr->getResponseData();
                se::HandleObject seObj(se::Object::createArrayBufferObject(data.getBytes(), data.getSize()));
                if (!seObj.isEmpty())
                {
                    s.rval().setObject(seObj);
                }
                else
                {
                    s.rval().setNull();
                }
            }
            else
            {
                SE_PRECONDITION2(false, false, "Invalid response type");
            }
        }
    }
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getResponse)

static bool XMLHttpRequest_getTimeout(se::State& s)
{
    XMLHttpRequest* cobj = (XMLHttpRequest*)s.nativeThisObject();
    s.rval().setUlong(cobj->getTimeout());
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getTimeout)

static bool XMLHttpRequest_setTimeout(se::State& s)
{
    const auto& args = s.args();
    int argc = (int)args.size();
    if (argc > 0)
    {
        XMLHttpRequest* cobj = (XMLHttpRequest*)s.nativeThisObject();
        unsigned long timeoutInMilliseconds = 0;
        bool ok = seval_to_ulong(args[0], &timeoutInMilliseconds);
        SE_PRECONDITION2(ok, false, "args[0] isn't a number");
        if (timeoutInMilliseconds < 50)
        {
            SE_LOGE("The timeout value (%lu ms) is too small, please note that timeout unit is milliseconds!", timeoutInMilliseconds);
        }
        cobj->setTimeout(timeoutInMilliseconds);
        return true;
    }

    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting > 0", argc);
    return false;
}
SE_BIND_PROP_SET(XMLHttpRequest_setTimeout)

static bool XMLHttpRequest_getResponseType(se::State& s)
{
    XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
    switch(xhr->getResponseType())
    {
        case XMLHttpRequest::ResponseType::STRING:
            s.rval().setString("text");
            break;
        case XMLHttpRequest::ResponseType::ARRAY_BUFFER:
            s.rval().setString("arraybuffer");
            break;
        case XMLHttpRequest::ResponseType::JSON:
            s.rval().setString("json");
            break;
        default:
            break;
    }
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getResponseType)

static bool XMLHttpRequest_setResponseType(se::State& s)
{
    const auto& args = s.args();
    size_t argc = args.size();

    if (argc > 0)
    {
        std::string type;
        bool ok = seval_to_std_string(args[0], &type);
        SE_PRECONDITION2(ok, false, "args[0] couldn't be converted to string!");

        XMLHttpRequest* xhr = (XMLHttpRequest*)s.nativeThisObject();
        if (type == "text")
        {
            xhr->setResponseType(XMLHttpRequest::ResponseType::STRING);
        }
        else if (type == "arraybuffer")
        {
            xhr->setResponseType(XMLHttpRequest::ResponseType::ARRAY_BUFFER);
        }
        else if (type == "json")
        {
            xhr->setResponseType(XMLHttpRequest::ResponseType::JSON);
        }
        else if (type == "document")
        {
            xhr->setResponseType(XMLHttpRequest::ResponseType::DOCUMENT);
        }
        else
        {
            SE_PRECONDITION2(false, false, "The response type isn't supported!");
        }
        return true;
    }

    SE_REPORT_ERROR("wrong number of arguments: %d, was expecting > 0", (int)argc);
    return false;
}
SE_BIND_PROP_SET(XMLHttpRequest_setResponseType)

static bool XMLHttpRequest_getWithCredentials(se::State& s)
{
    SE_LOGD("XMLHttpRequest.withCredentials isn't implemented on JSB!");
    return true;
}
SE_BIND_PROP_GET(XMLHttpRequest_getWithCredentials)

bool register_all_xmlhttprequest(se::Object* global)
{
    se::Class* cls = se::Class::create("XMLHttpRequest", global, nullptr, _SE(XMLHttpRequest_constructor));
    cls->defineFinalizeFunction(_SE(XMLHttpRequest_finalize));

    cls->defineFunction("open", _SE(XMLHttpRequest_open));
    cls->defineFunction("abort", _SE(XMLHttpRequest_abort));
    cls->defineFunction("send", _SE(XMLHttpRequest_send));
    cls->defineFunction("setRequestHeader", _SE(XMLHttpRequest_setRequestHeader));
    cls->defineFunction("getAllResponseHeaders", _SE(XMLHttpRequest_getAllResponseHeaders));
    cls->defineFunction("getResponseHeader", _SE(XMLHttpRequest_getResonpseHeader));
    cls->defineFunction("overrideMimeType", _SE(XMLHttpRequest_overrideMimeType));
    cls->defineProperty("__mimeType", _SE(XMLHttpRequest_getMIMEType), nullptr);

    cls->defineProperty("readyState", _SE(XMLHttpRequest_getReadyState), nullptr);
    cls->defineProperty("status", _SE(XMLHttpRequest_getStatus), nullptr);
    cls->defineProperty("statusText", _SE(XMLHttpRequest_getStatusText), nullptr);
    cls->defineProperty("responseText", _SE(XMLHttpRequest_getResponseText), nullptr);
    cls->defineProperty("responseXML", _SE(XMLHttpRequest_getResponseXML), nullptr);
    cls->defineProperty("response", _SE(XMLHttpRequest_getResponse), nullptr);
    cls->defineProperty("timeout", _SE(XMLHttpRequest_getTimeout), _SE(XMLHttpRequest_setTimeout));
    cls->defineProperty("responseType", _SE(XMLHttpRequest_getResponseType), _SE(XMLHttpRequest_setResponseType));
    cls->defineProperty("withCredentials", _SE(XMLHttpRequest_getWithCredentials), nullptr);

    cls->install();

    JSBClassType::registerClass<XMLHttpRequest>(cls);

    __jsb_XMLHttpRequest_class = cls;

    se::ScriptEngine::getInstance()->clearException();

    return true;
}
#endif //#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_IOS || CC_TARGET_PLATFORM == CC_PLATFORM_MAC || CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)