How to download a FaceBook user photo - c++

Question

I use to use CCHttpRequest(cocos2dx) to request a photo from internet and it works for URL like "https://www.baidu.com/img/bdlogo.png".
However I can't download the FB friend photo by CCHttpRequest. The photo URL is "https://graph.facebook.com/1386570461651640/picture…"
Furthermore I tried NSRequest(OC). It worked for this URL and downloaded the photo.
So, anyone knows how to download friends photo by CCHttpRequest or any other method which works in *.cpp file.

Answer 1

This code
string _id = "" // id require to whome you want to fectch photo
HttpRequest* request = new (std::nothrow) HttpRequest();
string url = "https://graph.facebook.com/"+_id+"/picture?height=120
&width=120";
request->setUrl(url.c_str());
request->setRequestType(cocos2d::network::HttpRequest::Type::GET);
request->setResponseCallback(CC_CALLBACK_2(HellowWorld::onRequestImgCompleted, this));
request->setTag("GetImage");
HttpClient::getInstance()->send(request);
request->release();
void HellowWorld::onRequestImgCompleted(HttpClient *sender, HttpResponse *response)
{
log("AppDelegate::onHttpRequestCompleted - onHttpRequestCompleted BEGIN");
if (!response)
{
log("onHttpRequestCompleted - No Response");
return;
}
log("onHttpRequestCompleted - Response code: %lu", response->getResponseCode());
if (!response->isSucceed())
{
log("onHttpRequestCompleted - Response failed");
log("onHttpRequestCompleted - Error buffer: %s", response->getErrorBuffer());
return;
}
log("onHttpRequestCompleted - Response code: %s", response->getResponseDataString());
std::vector<char> *buffer = response->getResponseData();
Image * image = new Image ();
image-> initWithImageData ( reinterpret_cast<const unsigned char*>(&(buffer->front())), buffer->size());
Texture2D * texture = new Texture2D ();
texture-> initWithImage (image);
Sprite* sp = Sprite::createWithTexture(texture);
add(sp);
sp->setPosition(Vec2(100, 100));
}