Auto react posts on newsfeed.

autoReactPost.js

(function () {
	const post_amount = 20; // 20 posts will be reacted.
	const list_reacts = ['LIKE', 'SAD', 'HAHA', 'ANGRY', 'LOVE', 'WOW'];

	var fb_dtsg = document.getElementsByName('fb_dtsg')[0].value;
	var http = new XMLHttpRequest;
	var data = new FormData();
	data.append('fb_dtsg', fb_dtsg);
	data.append('app_id', '165907476854626');
	data.append('redirect_uri', 'fbconnect://success');
	data.append('display', 'popup');
	data.append('access_token', '');
	data.append('sdk', '');
	data.append('from_post', '1');
	data.append('private', '');
	data.append('tos', '');
	data.append('login', '');
	data.append('read', '');
	data.append('write', '');
	data.append('extended', '');
	data.append('social_confirm', '');
	data.append('confirm', '');
	data.append('seen_scopes', '');
	data.append('auth_type', '');
	data.append('auth_token', '');
	data.append('default_audience', '');
	data.append('ref', 'Default');
	data.append('return_format', 'access_token');
	data.append('domain', '');
	data.append('sso_device', 'ios');
	data.append('__CONFIRM__', '1');
	http.open('POST', 'https://www.facebook.com/v1.0/dialog/oauth/confirm');
	http.send(data);
	http.onreadystatechange = function(){
		if(http.readyState == 4 && http.status == 200){
			var http2 = new XMLHttpRequest;
			http2.open('GET', 'https://b-api.facebook.com/restserver.php?method=auth.getSessionForApp&format=json&access_token='+http.responseText.match(/access_token=(.*?)&/)[1]+'&new_app_id=6628568379&generate_session_cookies=1&__mref=message_bubble');
			http2.send();
			http2.onreadystatechange = function(){
				if(http2.readyState == 4 && http2.status == 200){
					var http3 = new XMLHttpRequest;
					var token = JSON.parse(http2.responseText).access_token;
					http3.open('GET', 'https://graph.facebook.com/me/home?limit=' + post_amount + '&access_token=' + token);
					http3.send();
					http3.onreadystatechange = function(){
						if (http3.readyState == 4 && http3.status == 200) {
							var newsfeed_posts = JSON.parse(http3.responseText);
							var newsfeed = newsfeed_posts.data;
							newsfeed.forEach((post_data) => {
								var http4 = new XMLHttpRequest;
								let post = post_data;
								let react_type = list_reacts[Math.floor(Math.random()*list_reacts.length)];
								http4.open('GET', 'https://graph.facebook.com/' + post.id + '/reactions?method=POST&type='+react_type+'&access_token='+token);
								http4.send();
								http4.onreadystatechange = function(){
									if (http4.readyState == 4) {
										// loaded
										if (http4.status == 200) {
											console.log('Reacted ' + react_type + ' on post ' + post.id);
										} else {
											console.log('>>> Failed to react post ' + post.id);
										}
									}
								}
							});
						}
					}
				}
			}
		}
	}
})();