Absterge (mirror)

// ==UserScript==
// @name           Absterge
// @namespace      http://userscripts.org/users/astojanov
// @include        http://*.facebook.com/*
// @include        https://*.facebook.com/*
// @require        http://code.jquery.com/jquery-1.7.1.min.js
// ==/UserScript==

function parseUri (str) {
    var o = parseUri.options,
    m   = o.parser[o.strictMode ? "strict" : "loose"].exec(str),
    uri = {},
    i   = 14;
    while (i--) uri[o.key[i]] = m[i] || "";
    uri[o.q.name] = {};
    uri[o.key[12]].replace(o.q.parser, function ($0, $1, $2) {
        if ($1) uri[o.q.name][$1] = $2;
    });
    return uri;
};

parseUri.options = {
        strictMode: false,
        key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],
        q:   {
            name:   "queryKey",
            parser: /(?:^|&)([^&=]*)=?([^&]*)/g
        },
        parser: {
            strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,
            loose:  /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/
        }
};

window.addEventListener('load', function()  {

    var fb_dtsg = null;
    var abstergeProcessingTimeout = 2000;

    // Unfriend as an action as well ?
    var deleteActions = ["Unfriend", "Delete", "Report/Remove Tag", "Delete Photo", "Unlike"];

    // Verify the delete action
    var isDeleteAction = function (actionType) {
        return (deleteActions.indexOf(actionType) >= 0);
    }

    // Get the value of fb_dtsg
    var getConstantParameters = function () {
        if ( fb_dtsg !== null ) {
            return true;
        } else {

            if ( fb_dtsg === null ) {
                $('input[name="fb_dtsg"]').each(function(){
                    fb_dtsg = $(this).attr("value");
                });
            }
            return (fb_dtsg !== null);
        }
    }

    // Mimic physical mouse click event (testing only)
    var physicalClick = function (obj) {
        var x = obj.offset().left + ( obj.width () / 2 );
        var y = obj.offset().top  + ( obj.height() / 2 );
        $(document.elementFromPoint(x, y)).click();
    }

    // Delete any ministory passed to this function
    var processMinistory = function (ministory, actionObj) {
        var ajaxify = parseUri("http://facebook.com" + actionObj.attr("ajaxify"));
        if ( ajaxify.file === "take_action_on_story.php" ) {
            var data = {
                    'fb_dtsg'  : fb_dtsg,
                    'confirmed': "true",
                    'ban_user' : "0"
            };
            for ( var key in ajaxify.queryKey ) {
                data[key] = ajaxify.queryKey[key];
            }
            $.ajax({
                type    : "POST",
                url     : "https://www.facebook.com/ajax/timeline/take_action_on_story.php",
                data    : data,
                complete: function(jqXHR, textStatus) {
                    if ( jqXHR.status === 200 ) {
                        if ( $('#cmdAbsterge').attr('deletecount') === undefined || $('#cmdAbsterge').attr('deletecount') === null ) {
                            $('#cmdAbsterge').attr('deletecount', '0');
                        }
                        var deleteCount = parseInt($('#cmdAbsterge').attr('deletecount')) + 1;
                        $('#cmdAbsterge').html("Absterge (" + deleteCount + ")");
                        $('#cmdAbsterge').attr('deletecount', '' + deleteCount);
                        ministory.remove();
                    }
                    console.log("Deleting:", jqXHR);
                }
            });
        }
    }


    var onAbstergeClick = function () {
        getConstantParameters ();
        console.log("Absterge is starting ...");
        $("div > div > div > div.fbTimelineSection > div > div > div > div > ul > li").each(function() {
            var ministory = $(this);
            ministory.find('a').each(function(){
                if ( $(this).attr("aria-label") === "Allowed on Timeline" ) {
                    var editButton = $(this);
                    editButton.mousemove();
                    editButton.find('i').click();
                    setTimeout ( function() { editButton.parent().find('a[ajaxify]').each (function() {
                        if ( isDeleteAction($(this).text()) ) {
                            // console.log(ministory, $(this).text());
                            processMinistory (ministory, $(this));
                        }
                    })}, abstergeProcessingTimeout);
                }
            });
        });
        $("html, body").animate({ scrollTop: $(document).height() }, "slow");
        console.log("Absterge done ...: ", fb_dtsg);
        setTimeout(onAbstergeClick, 3000);
    };


    // Include the
    $('<li id="navAbsterge" class="navItem middleItem"><a id="cmdAbsterge" class="navLink bigPadding" href="#">Absterge</a></li>').insertAfter('#navHome');
    var pathname = window.location.pathname;
    if ( pathname.indexOf('/allactivity') === -1 ) {
        $('#cmdAbsterge').click(function () {
            alert('You must navigate to "Activity Log" using the "Timeline" feature in order to use Absterge');
        });
    } else {
        $('#cmdAbsterge').css("color", "#FAFAD2");
        $('#cmdAbsterge').click(function () {
            onAbstergeClick();
        });
    }
});