mass_delete_facebook_group_member.js

var deleteAllGroupMembers = (function () {
var deleteAllGroupMembers = {},

excludedFbIds = ['Insert whitelist UID'], // make sure each id is a string!
usersToDeleteQueue = [],
scriptEnabled = false, lowAlpha, highAlpha, maxDeletes;

deleteAllGroupMembers.start = function(pLowAlpha,pHighAlpha,maxDeletes) {
	lowAlpha = (pLowAlpha || 'a').toLowerCase();
	highAlpha = (pHighAlpha || 'z').toLowerCase();
	maxDeletes = maxDeletes || 100;
	scriptEnabled = true;
	deleteAll();
};
deleteAllGroupMembers.stop = function() {
	scriptEnabled = false;
};

function deleteAll() {
	if (scriptEnabled) {
		queueMembersToDelete();
		if (usersToDeleteQueue.length > 0) {
			removeNext();
		}
		//processQueue();
	}
}
function getFieldParm(field,parm) {
	var ipos, epos;
	if (field.indexOf(parm + '=') > 0) {
		ipos = field.indexOf(parm + '=') + parm.length + 1;
		epos = field.indexOf('&',ipos) > 0 ? field.indexOf('&',ipos) : field.length;
		return field.substring(ipos,epos);
	}
	return '';
}
function is_null_empty(value) {
	return value === null || value === '';
}
function getElementsByAttribute(el,attrName, attrValue) {
	return el.querySelectorAll('['+attrName+'=' + '"'+attrValue+'"]');
}
function queueMembersToDelete() {
	var count,idx, profileDiv = document.getElementById('groupsMemberSection_all_members'), profiles = getElementsByAttribute(profileDiv,'data-name','GroupProfileGridItem');
	count = profiles.length;
	// For each profile, get the id, name and button to click to Leave Group
	for (idx = 0;idx < count;idx++) {
		memberDiv = profiles[idx];
		var profileImg = memberDiv.getElementsByTagName('img'), fbMemberName, fbMemberIdv, gearWheelIconDiv, ary, firstLetter;
		if (profileImg.length > 0) {		
			fbMemberName = profileImg[0].getAttribute('aria-label');
			firstLetter = fbMemberName[0].toLowerCase();
			if (firstLetter >= lowAlpha && firstLetter <= highAlpha) {
				fbMemberId = getFieldParm(profileImg[0].parentNode.getAttribute('ajaxify'),'member_id');
				if (excludedFbIds.indexOf(fbMemberId) != -1) {
					console.log("SKIPPING "+fbMemberName+' ('+fbMemberId+')');
				} else {
					ary = getElementsByAttribute(memberDiv,'aria-label','Member Settings');
					if (ary.length > 0) {
						usersToDeleteQueue.push({'memberId': fbMemberId,'memberName' : fbMemberName, 'fbSettingsBtn': ary[0]});
						if (usersToDeleteQueue.length >= maxDeletes) {
							break;
						}	
					}
				}
			}
		}
	};
}

function removeNext() {
	if (!scriptEnabled) {
		return;
	}
	if (usersToDeleteQueue.length > 0) {
		var nextElement = usersToDeleteQueue.shift();
		removeMember(nextElement);
	} else {
		deleteAll();
	}
}

function removeMember(memberToRemove) {
	var testForMenuItem = function(resolve, reject) { 
			var interval = setInterval(function(){
					var menuId = memberToRemove.fbSettingsBtn.getAttribute('aria-controls');
					if (!is_null_empty(menuId)) {
						clearInterval(interval);
						resolve(menuId);
					}
				},150);
		}, waitForConfirm = function(memberId, memberName,startCount) {
			     return function(resolve, reject) { 
			var state = 0, interval = setInterval(function(){
				if (state === 0) {
					var btn = document.getElementsByClassName('layerConfirm uiOverlayButton selected');
					if (btn.length > 0) {							
						btn[0].click();
						state = 1;
					}
				} else {
					if (document.forms.length === startCount) {
						resolve({id: memberId, name: memberName});
					}
				}
				},150);
			};
		}, promise, p2;
	memberToRemove.fbSettingsBtn.click();
	promise = new Promise(testForMenuItem);
	promise.then(function(value){
		var removeItem;
		removeItem = getElementsByAttribute(document.getElementById(value), "data-testid", 'leave_group');
		if (removeItem.length > 0) {
			removeItem[0].click();				
			p2 = new Promise(waitForConfirm(memberToRemove.memberId, memberToRemove.memberName, document.forms.length));
			p2.then(function(obj){
				console.log('Member: ' + obj.name + ' (' + obj.id + ')');
				removeNext();
			});
		} else {
			console.log('link not found.');
		}
	});
		
}
return deleteAllGroupMembers;
})();
deleteAllGroupMembers.start();