pratk30/LinkRedirection.txt

## LinkRedirection.txt
<style>
  .loadingBody {
      display : none;
      background: url("SharePointFolderURLFromSource/Redirecting.gif") 50% 50% no-repeat !important;
      background-attachment: fixed;
      background-position: center;
      background-color: #cccccc;
      }
</style>

<script>
  var legacyUserGroupId = 329; //Your SharePoint Legacy group Id from Source Site
  var getCurrentUser = function getCurrentUser() {
    try {
        var currentUserId = _spPageContextInfo.userId;
        isUserMemberOfGroup(currentUserId, legacyUserGroupId,
        function (isCurrentUserInGroup) {
          if (!isCurrentUserInGroup){ //if ProjectTeamMember is present in legacy sharepoint group then redirection will not happen. End user will be redirected to new site.
            setTimeout(function () {
              $(location).attr('href', 'Target Site URL');
              }, 3000);

            $("#loading").addClass("loadingBody"); //adding loading class
          }
    },
    function (sender, args) {
      console.log(args.get_message());
    });
  }
  catch (err) {
      alert(err.message)
  }
 }

function isUserMemberOfGroup(userId, groupId, success, error) {
  try {
      var ctx = SP.ClientContext.get_current();
      var allGroups = ctx.get_web().get_siteGroups();
      var group = allGroups.getById(groupId);
      ctx.load(group, 'Users');

      ctx.executeQueryAsync(
         function (sender, args) {
             try {
                 var userInGroup = findUserById(group.get_users(), userId);
                 success(userInGroup);
             }
             catch (err) {
                 alert(err.message)
             }
         },
        error);

      var findUserById = function (users, id) {
          var found = false;
          var eUsers = users.getEnumerator();
          while (eUsers.moveNext()) {
              var user = eUsers.get_current();
              if (user.get_id() == id) {
                  found = true;
                  break;
              }
          }
          return found;
      };

  }
  catch (err) {
      alert(err.message)
  }
}

$(document).ready(getCurrentUser);
</script>

<body id="loading"> //SharePoint Master Page Body tag with Id = loading
   // Your Master Page content
</body>
	<style>
	.loadingBody {
	display : none;
	background: url("SharePointFolderURLFromSource/Redirecting.gif") 50% 50% no-repeat !important;
	background-attachment: fixed;
	background-position: center;
	background-color: #cccccc;
	}
	</style>

	<script>
	var legacyUserGroupId = 329; //Your SharePoint Legacy group Id from Source Site
	var getCurrentUser = function getCurrentUser() {
	try {
	var currentUserId = _spPageContextInfo.userId;
	isUserMemberOfGroup(currentUserId, legacyUserGroupId,
	function (isCurrentUserInGroup) {
	if (!isCurrentUserInGroup){ //if ProjectTeamMember is present in legacy sharepoint group then redirection will not happen. End user will be redirected to new site.
	setTimeout(function () {
	$(location).attr('href', 'Target Site URL');
	}, 3000);

	$("#loading").addClass("loadingBody"); //adding loading class
	}
	},
	function (sender, args) {
	console.log(args.get_message());
	});
	}
	catch (err) {
	alert(err.message)
	}
	}

	function isUserMemberOfGroup(userId, groupId, success, error) {
	try {
	var ctx = SP.ClientContext.get_current();
	var allGroups = ctx.get_web().get_siteGroups();
	var group = allGroups.getById(groupId);
	ctx.load(group, 'Users');

	ctx.executeQueryAsync(
	function (sender, args) {
	try {
	var userInGroup = findUserById(group.get_users(), userId);
	success(userInGroup);
	}
	catch (err) {
	alert(err.message)
	}
	},
	error);

	var findUserById = function (users, id) {
	var found = false;
	var eUsers = users.getEnumerator();
	while (eUsers.moveNext()) {
	var user = eUsers.get_current();
	if (user.get_id() == id) {
	found = true;
	break;
	}
	}
	return found;
	};

	}
	catch (err) {
	alert(err.message)
	}
	}

	$(document).ready(getCurrentUser);
	</script>

	<body id="loading"> //SharePoint Master Page Body tag with Id = loading
	// Your Master Page content
	</body>