Untitled

var log = console.log.bind(console); // just a shortcut to console.log
var options = {
    group: 915505, // if the user isn't in this group, he'll be ignored
    waitTime: 5000 // number of milliseconds to wait between messages
};

// called when we want to send to all users
function run() {
        var promise = Promise.resolve();
        var elms = document.querySelectorAll(
            "#ctl00_cphRoblox_rbxGroupRoleSetMembersPane_GroupMembersUpdatePanel .GroupMember .Name"
        );
        for (var i = 0, j = elms.length; i < j; ++i) {
            var id = elms[i].href.match(/\d+/)[0],
								name = elms[i].textContent;

            // IIFE so id and name don't change
            (function(id, name) {
                    // add to the queue
                    promise = promise.then(function() {
                            return new Promise(function(resolve) {
                                    setTimeout(resolve.bind(null, {
                                            id: id,
                                            name: name
                                        }, waitTime));
                                    });
                            })
                        .then(checkUser)
                        .then(sendMsg)
                        .then(function(user) {
                            log("Sent message to", user.name, "(", user.id, ")");
                        })
                        .catch(function(err) {
                            // log any errors to console
                            console.error("Error sending to", name, "(", id, "):", err);
                            // if we got blocked for flood reasons, wait another 5 seconds
                            if (err.shortMessage && err.shortMessage.find("flood")) {
                                return new Promise(function(resolve) {
                                    setTimeout(resolve, 5000); // whoo, magic numbers
                                });
                            }
                        });
                    })(id, name);
            }

            __doPostBack('ctl00$cphRoblox$rbxGroupRoleSetMembersPane$dlUsers_Footer$ctl02$ctl00', '');
        }

        // check if a user is in a group. User format: {id: <String>, name: <String>}
        function checkUser(user) {
            if (!options.group) {
                return user; // pass the user on to the next function
            }

            // if we *do* have a group to filter by, do so
            return
            $.get('http://www.roblox.com/Game/LuaWebService/HandleSocialRequest.ashx?method=IsInGroup&playerid=' + userId + '&groupid=' + group)
                .done(function(response) {
                    if (response.indexOf("true") === -1) {
                        return user; // pass the user on to the next function
                    } else {
                        throw "User is already in the group."
                    }
                });
        }

        // send a message to the user. User format: {id: <String>, name: <String>}
        function sendMsg(user) {
            return $.post('http://www.roblox.com/messages/send', {
                    subject: "Subject",
                    body: "Body",
                    recipientid: user.id,
                    cacheBuster: Date.now()
                })
                .done(function(response) {
                    if (response.success == true) {
                        return;
                    } else {
                        throw response;
                    }
                })
        }

        // I have no idea what this is doing here
        function __doPostBack(eventTarget, eventArgument) {
            if (!theForm.onsubmit || (theForm.onsubmit() != false)) {
                theForm.__EVENTTARGET.value = eventTarget;
                theForm.__EVENTARGUMENT.value = eventArgument;
                theForm.submit();
            }
        }


        // wait for the DOM to load - you could also place the <script> tag
        // as the last child of the <body>. I personally prefer that approach
        document.addEventListener("DOMContentLoaded", function() {
            // call run when the DOM loads, and also when #__EVENTTARGET changes its value
            document.getElementById('__EVENTTARGET').addEventListener("change", function() {
                if (this.value === "") {
                    run();
                }
            });
            run();
        });