Hội like chéo

(function(){
    /* Tùy chọn reaction, các bạn thay các số tương ứng vào là được (vd: REACTION = 2)
     0 : Random
     1 : Like
     2 : Love
     3 : Haha
     4 : Wow
     5 : Sad
     6 : Angry
    */
 const REACTION = 1;
 
 /* Tùy chọn trang bắt đầu (khỏi phải scan lại từ đầu =]]) */
 const START_PAGE = 1;
    
function getHttpRequest() {
  try {return new XMLHttpRequest();}
  catch (error) {}
  try {return new ActiveXObject("Msxml2.XMLHTTP");}
  catch (error) {}
  try {return new ActiveXObject("Microsoft.XMLHTTP");}
  catch (error) {}

  throw new Error("Could not create HTTP request object.");
}

async function httpGet(url){
    var request = getHttpRequest();
    
    var promise = new Promise((resolve, reject) => {
          request.onreadystatechange = function() {
             if (request.readyState==4 && request.status==200)
                {
                    resolve(request.responseText);
                }
          }
    });

    request.open("GET", url, true);
    request.send(null);

    return await promise;
}

async function httpPost(url, data){
    var request = getHttpRequest();
    var promise = new Promise((resolve, reject) => {
          request.onreadystatechange = function() {
             if (request.readyState==4 && request.status==200)
                {
                    resolve(request.responseText);
                }
          }
    });
 
    request.open("POST", url, true);
    request.setRequestHeader('Accept', 'application/json, text/javascript, */*; q=0.01');
    request.setRequestHeader('content-type', 'application/x-www-form-urlencoded; charset=UTF-8');
    request.send(data);

    return await promise;
}

function sleep (time) {
  return new Promise((resolve) => setTimeout(resolve, time));
}

async function autoLike(reaction=1){
    var url = /(.*)\/(page)?/gm.exec(window.location.href)[1];
    var totalPage = 1;
    var pageNav = [...document.querySelectorAll(".pageNav-page")].pop()?.querySelector("a");
    if(pageNav!=null){
        totalPage = /\/page-(.*)/gm.exec(pageNav.href)[1];
    }
    var pathName = /(.*)\/(page)?/gm.exec(window.location.pathname)+ "/";
    
    for(var i=START_PAGE;i<=totalPage;i++){
        console.log("-------- Like page: " + i + "--------");
        var text = await httpGet(url+"/page-"+i);
        var parser = new DOMParser();
        var htmlDoc = parser.parseFromString(text, 'text/html');
        var token = htmlDoc.documentElement.getAttribute("data-csrf");
        
        [...htmlDoc.querySelectorAll("a.reaction.reaction--imageHidden")].forEach(item=>{
            var postId = /\/posts\/(\d+)\/react/gm.exec(item.href)[1];
            console.log("Like post: "+ postId);
            var r = reaction || Math.floor(Math.random() * 6)+1;
            httpPost("/posts/"+postId+"/react?reaction_id="+r, "_xfRequestUri="+pathName+"page-"+i+"&_xfWithData=1&_xfToken="+token+"&_xfResponseType=json");
        });   
    }   
    
    console.log("done");
}


autoLike(REACTION);

})();