Hide U2 blacklist user

Hide blacklist users' words
当前为 2019-01-04 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Hide U2 blacklist user
// @namespace    https://xsky123.com
// @version      1.0
// @description  Hide blacklist users' words
// @author       XSky123
// @match        *://u2.dmhy.org*
// @noframes
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

// GLOBAL SETTINGS
// 1. Disable async in ajax
$.ajaxSetup({
    async : false
});

// 2. Set empty blacklist
var blacklist = [];


function get_date() {
    var now = new Date();
    var year = now.getFullYear();
    var month = now.getMonth() + 1;
    var day = now.getDate();
    var hour = now.getHours();
    var minute = now.getMinutes();
    var second = now.getSeconds();
    return `${year}-${month < 10 ? "0"+month : month}-${day < 10 ? "0"+day : day} ${hour < 10 ? "0"+hour : hour}:${minute < 10 ? "0"+hour : hour}:${second < 10 ? "0"+second : second}`;
}


// Step 1: Fetch blacklist from localStorage
function init_blacklist(){
    if(!localStorage.getItem('u2_blacklist')){ // not storaged
        get_blacklist();
    }else{
        // check refresh
        if(localStorage.getItem('u2_blacklist_update_at')){
            var now = get_date();
            var last_update_at = new Date(localStorage.getItem('u2_blacklist_update_at'));
            if(now - last_update_at > 24 * 3600 * 1000){ // if over 1 day fetch new
                get_blacklist();
            }else{                                       // else use local data
                blacklist = JSON.parse(localStorage.getItem('u2_blacklist'));
            }
        }else{
            get_blacklist();
        }
    }
}


function get_blacklist(){
    blacklist = fetch_blacklist();
    localStorage.setItem('u2_blacklist', JSON.stringify(blacklist));
    localStorage.setItem('u2_blacklist_update_at', get_date());
}


function fetch_blacklist(){
    var black_list = [];
    var friend_page = "";
    var all_blocked = [];
    var finish_flag = 0;
    $.get("https://u2.dmhy.org/friends.php", function(data, status){
        // alert("Data: " + data + "\nStatus: " + status);
        if(status === "success"){
            friend_page = data;
            all_blocked = friend_page.match(/type=block.*?ltr'>(.*?)<\/bdo/g);
            all_blocked.forEach(function(each){
                black_list.push(each.match(/targetid=(.*?)"/)[1]);
            });
            finish_flag = 1;
        }else{
            throw new Error("Can not access friends page.");
        }
    });
    return black_list;

}




// Step 2.1: Hide MotherFxxker's words in shoutbox
function hide_shoutbox_dirty_words(){
    var shoutbox = document.getElementsByTagName('iframe')[0];
    if(shoutbox.contentWindow.document.getElementsByTagName("head").innerText == "")
        ;
    else{
        var shoutrow = shoutbox.contentWindow.document.getElementsByClassName("shoutrow");
        var shoutrows = shoutrow[0].getElementsByTagName("div");
        var uid;
        var i;
        var count = 0;
        for(i=0;i<shoutrows.length;i++)
        {
            var each = shoutrows[i];

            uid = each.innerHTML.match(/sbat\((.*?)\)/);
            if(!uid)
                continue;

            if(blacklist.indexOf(uid[1]) !== -1){ // find blocked user
                each.getElementsByTagName("bdo")[1].innerHTML = "<i>黑名单用户发言，已屏蔽</i>";
                count++;
            }
        }
        console.log("Blocked " + count + " messages.")
    }
}

window.addEventListener("load",init,false);
init_blacklist();
function init(){
    document.getElementsByTagName('iframe')[0].onload = function () {
        hide_shoutbox_dirty_words()
    };
    hide_shoutbox_dirty_words();
}
})();