Facebook Delete Group Script

var deleteAllGroupMembers = (
	function ()
	{
		var deleteAllGroupMembers = {};
		// the facebook ids of the users that will not be removed.
		// IMPORTANT: add your own facebook id here so that the script will not remove yourself!
		var excludedFbIds = ['jessica.manoo.7']; // make sure each id is a string!
		var totalDeleted = 0;
		var usersToDeleteQueue = [];
		var scriptEnabled = false;
		var processing = false;
		deleteAllGroupMembers.start =
		function()
		{
			scriptEnabled = true;
			deleteAll();
		};
		deleteAllGroupMembers.stop = function()
		{
			scriptEnabled = false;
		};
		function deleteAll()
		{
			if (scriptEnabled)
			{
				queueMembersToDelete();
				processQueue();
			}
		}

		function queueMembersToDelete()
		{
			var adminActions = document.getElementsByClassName('adminActions');
			console.log(excludedFbIds);
			for(var i=0; i<adminActions.length; i++)
			{
				var gearWheelIconDiv = adminActions[i];
				var hyperlinksInAdminDialog = gearWheelIconDiv.getElementsByTagName('button')[0];
				//var fbMemberId = gearWheelIconDiv.parentNode.parentNode.id.replace('member_','');
				//var fbMemberName = getTextFromElement(gearWheelIconDiv.parentNode.parentNode.getElementsByClassName('fcb')[0]);
				var fbMemberName = gearWheelIconDiv.parentNode.parentNode.parentNode.children[0].children[0].text;
				if (gearWheelIconDiv.parentNode.parentNode.parentNode.children[0].children[0].attributes[0] == null)
					continue;
				var str = gearWheelIconDiv.parentNode.parentNode.parentNode.children[0].children[0].attributes[0].value;

				str = str.substring(str.indexOf('.com') + 5);
				fbMemberId = str.substring(0,str.indexOf('?'));
				if (excludedFbIds.indexOf(fbMemberId) != -1)
				{
					console.log("SKIPPING "+fbMemberName+' ('+fbMemberId+')');
					continue;
				}
				else
				{
					console.log('Queing: ' + fbMemberName+ ', (' + fbMemberId + ')');
					usersToDeleteQueue.push({'memberId': fbMemberId, 'gearWheelIconDiv': gearWheelIconDiv});
				}
			}
		}

		function processQueue()
		{
			if (!scriptEnabled)
			{
				return;
			}
			if (usersToDeleteQueue.length > 0)
			{
				removeNext();
				setTimeout(
				function()
				{
					processQueue();
				},1000);
			}
			else
			{
				getMore();
			}
		}
		function removeNext()
		{
			if (!scriptEnabled)
			{
				return;
			}
			if (usersToDeleteQueue.length > 0)
			{
				var nextElement = usersToDeleteQueue.pop();
				removeMember(nextElement.memberId, nextElement.gearWheelIconDiv);
			}
		}
		function removeMember(memberId, gearWheelIconDiv) {
		if (processing)
		{
			return;
		}
		var gearWheelHref = gearWheelIconDiv.getElementsByTagName('button')[0];
		gearWheelHref.click();
		processing = true;
		setTimeout(
			function()
			{
				var popupRef = gearWheelHref.id;
				var popupDiv = getElementByAttribute('data-ownerid',popupRef);
				var popupLinks = popupDiv.getElementsByTagName('a');
				for(var j=0; j<popupLinks.length; j++)
				{
					if (popupLinks[j].getAttribute('href').indexOf('remove.php') !== -1)
					{
						// this is the remove link
						popupLinks[j].click();
						setTimeout(function(){
						var confirmButton = document.getElementsByClassName('layerConfirm uiOverlayButton selected')[0];
						var errorDialog = getElementByAttribute('data-reactid','.4.0');
						if (confirmButton != null) {
						if (canClick(confirmButton)) {
						confirmButton.click();
						} else {
						console.log('This should not happen memberid: '+memberId);
						5/0;
						console.log(gearWheelIconDiv);
						}
						}
						if (errorDialog != null) {
						console.log("Error while removing member "+memberId);
						errorDialog.getElementsByClassName('selected layerCancel autofocus')[0].click();
						}
						else
						{
							console.log("Now Deleting "+ memberId + ', (' + totalDeleted + ')');
							totalDeleted = totalDeleted + 1;
						}
						processing = false;
						},1500);
						continue;
					}
				}
			},1000);
		}
		function canClick(el)
		{
			return (typeof el != 'undefined') && (typeof el.click != 'undefined');
		}
		function getMore()
		{
			processing = true;
			more = document.getElementsByClassName("pam uiBoxLightblue uiMorePagerPrimary");
			if (typeof more != 'undefined' && canClick(more[0]))
			{
				more[0].click();
				setTimeout(
					function()
					{
						deleteAll();
						processing = false;
					}, 4000);
			}
			else
			{
				deleteAllGroupMembers.stop();
			}
		}
		function getTextFromElement(element)
		{
			var text = element.textContent;
			return text;
		}
		function getElementByAttribute(attr, value, root)
		{
			root = root || document.body;
			if(root.hasAttribute(attr) && root.getAttribute(attr) == value)
			{
				return root;
			}
			var children = root.children,
			element;
			for(var i = children.length; i--; )
			{
				element = getElementByAttribute(attr, value, children[i]);
				if(element)
				{
					return element;
				}
			}
			return null;
		}

		return deleteAllGroupMembers;
	})();
deleteAllGroupMembers.start();