// ==UserScript==
// @name 自动封禁装置，启动！
// @namespace http://tampermonkey.net/
// @version 0.3
// @description 再见了！广告君
// @author holynnchen
// @match https://live.bilibili.com/*
// @grant none
// ==/UserScript==
/*毕竟是基于相似度进行封禁的，可能存在误封、漏封的情况，请及时查看封禁信息避免误封*/
/*语料库功能还不完善，请谨慎使用，不同方法所使用的语料库均不同*/
/*菜单指令 开发者工具中使用*/
//autoban.showStatus() 查看运行情况
//autoban.showBan() 查看封禁情况
//autoban.clearUID(uid) 根据指定uid删除ban_db中数据
//autoban.addCorpus() 将当前ban_db中每个uid的第一条发言不重复的放入当前语料库中
//autoban.allReport() 一键举报所有被封禁用户，同时加入封禁窗口
const ban_limit=0.7;//弹幕相似率大于ban_limit时自动禁言
let count_in=0,count_ban=0,count_clear=0;//弹幕入库次数、弹幕封禁次数、清理次数
const startCheck=3;//timeRange内长弹幕数量大于startCheck开始检测（不含startCheck）
const timeRange=10000;//只统计timeRange这段时间内的弹幕
const useCorpus=true;//是否启用语料库
const filterList=[filter1,filter2];//匹配过滤函数，若其中一个返回true都认为是正常弹幕，针对B站默认采用filter1与filter2
const filterBanList=[ban_filter1,ban_filter2];
const CorpusCheck_choice=new CorpusCheck_special(0.7,(uid)=>{return uid>400000000});//选择语料库函数进行快速封禁，有下述方法
//CorpusCheck_base 相似度匹配 参数 匹配度下限 特点：根据编辑距离计算相似度，结构为数组，每次都对语料库进行由新到旧的compare，因此前期快，封禁数量上升后慢
//CorpusCheck_lost 随机损失法 参数 损失度上限 特点：使用随机损失法做字典，因此储存占用较大，损失度越大每次操作耗时越大，但每次操作的耗时都是相对固定的
//CorpusCheck_equal 精确匹配法 参数 无 特点：使用原封禁弹幕做字典，内存占用小，对广告有一定变形机制作用较小(指非混淆的第一句弹幕)，但几乎不耗时
//CorpusCheck_special 相似度匹配_B站特别版 参数 匹配度下限，uid匹配函数（默认>400000000） 特点：B站广告君uid几乎都大于400000000，从这一点出发可以大幅度减少检测匹配
const filter1_config=0.75;//弹幕内同一字符占弹幕长度的分数，大于该值视为正常弹幕
const filter2_config=[];//含有数组内的子字符串的均视为正常弹幕
const ban_filter1_config=['扣群'];//若用户在时间区域内发数组内子字符串两次直接封禁
const ban_filter2_config=5;//窗口最大上限
const startTime=Date.now();
const csrf=getCookie('bili_jct');// use for ban
let RoomLongID;//window.BilibiliLive.ROOMID
let RoomShortID;//window.BilibiliLive.SHORT_ROOMID
let ReplaceDict={};
const ReplaceDictText='ÀÁÂÃÄÅàáâãäåĀāĂ㥹ȀȁȂȃȦȧɑΆΑάαАаӐӑӒӓ:a;ƀƁƂƃƄƅɃʙΒβВЬвЪъьѢѣҌҍ:b;ÇçĆćĈĉĊċČčƇƈϲϹСсҪҫ:c;ÐĎďĐđƉƊƋƌȡɖɗ:d;ÈÉÊËèéêëĒēĔĕĖėĘęĚěȄȅȆȇȨȩɐΈΕЀЁЕеѐёҼҽҾҿӖӗ:e;Ƒƒƭ:f;ĜĝĞğĠġĢģƓɠɡɢʛԌԍ:g;ĤĥĦħȞȟʜɦʰʱΉΗНнћҢңҤҺһӇӈӉӊԊԋ:h;ÌÍÎÏìíîïĨĩĪīĬĭĮįİıƗȈȉȊȋɪΊΙΪϊії:i;ĴĵʲͿϳ:j;ĶķĸƘƙΚκϏЌКкќҚқҜҝҞҟҠҡԞԟ:k;ĹĺĻļĽľĿŀŁłȴɭʟӏ:l;ɱʍΜϺϻМмӍӎ:m;ÑñŃńŅņŇňʼnŊŋƝƞȵɴΝηПп:n;ÒÓÔÕÖòóôõöŌōŎŏŐőơƢȌȍȎȏȪȫȬȭȮȯȰȱΌΟοόОоӦӧ:o;ƤΡρϼРр:p;ɊɋԚԛ:q;ŔŕŖŗŘřƦȐȑȒȓɌɍʀʳг:r;ŚśŜŝŞşŠšȘșȿЅѕ:s;ŢţŤťŦŧƫƬƮȚțͲͳΤТтҬҭ:t;ÙÚÛÜùúûŨũŪūŬŭŮůŰűŲųƯưƱȔȕȖȗ:u;ƔƲʋνυϋύΰѴѵѶѷ:v;ŴŵƜɯɰʷωώϢϣШЩшщѡѿԜԝ:w;ΧχХхҲҳӼӽ:x;ÝýÿŶŷŸƳƴȲȳɎɏʏʸΎΥΫϒϓϔЎУуўҮүӮӯӰӱӲӳ:y;ŹźŻżŽžƵƶȤȥʐʑΖ:z;o:0;∃э:3;➏:6;┑┐┓┑:7;╬╪:+';
const ReplaceRegexp=/(.{3,}?)\1+/g;
let prepareDelete={};
const enablePoint=true;//是否在无房管权限时启动探针模式
const EventPool={event_add_ban,event_add_point};
let globalObserver=null;
let intervalId=null;
let isMaster=false;
//初始化工作
(async ()=>{
await waitCreat(window,'BilibiliLive');
RoomLongID=await waitCreat(window.BilibiliLive,'ROOMID');
RoomShortID=await waitCreat(window.BilibiliLive,'SHORT_ROOMID');
show('机器人自动封禁装置初始化中...');
for(let i of ReplaceDictText.split(';')){
let [keys,value]=i.split(':');
for(let j of keys)ReplaceDict[j]=value;
}
let res=await fetch('https://api.live.bilibili.com/live_user/v1/UserInfo/get_info_in_room?roomid='+RoomLongID,{credentials: "include"});
res=await res.json();
if(res.code==0){
if(res.data.room_admin.is_admin){
isMaster=true;
main();
return;
}else{
if(!enablePoint){
show('您还不是本房间的房管，装置已自动关闭！');
return;
}
}
}else{
show('获取信息异常，请刷新页面重新获取！')
console.log(res);
return;
};
if(enablePoint){
main();
}
})()
//主运行函数
function main() {
if(!isMaster){
show('当前开启探针模式');
sendMessage('event_add_point',{comeFrom:RoomShortID});
}
start();
};
function start(){//一键开启
if(globalObserver)globalObserver.disconnect();
window.globalSaver={};
window.ban_db=[];
window.ban_db_window=[];
globalObserver=new MutationObserver((mutations)=>{
for(let i of mutations){
if(i.addedNodes.length!=0){
doOne:for(let j of i.addedNodes){
if(j.dataset.danmaku&&j.dataset.danmaku.length>9){
count_in++;
let uid=j.dataset.uid,name=j.dataset.uname,danmu=j.dataset.danmaku,ct=j.dataset.ct,ts=j.dataset.ts;
//压缩弹幕
danmu=danmu.replaceAll(ReplaceRegexp,"$1");
if(danmu.length<=9)continue doOne;
// 例外规则
if((Date.now()-ts*1000)>timeRange)continue doOne;
for(let filterCheck of filterList){
if(filterCheck(danmu))continue doOne;
}
// 例外规则结束
if(!window.globalSaver[uid]){
window.globalSaver[uid]=[]
}
let nowtime=Date.now();
window.globalSaver[uid].push([nowtime,danmu]);
window.globalSaver[uid]=window.globalSaver[uid].filter((item)=>nowtime-item[0]<timeRange);
for(let filterCheck of filterBanList){
if(filterCheck(danmu,uid)){
ban_user({uid,name,ct,ts,reason:'预过滤封禁'});
continue doOne;
}
}
// 查询语料库
if(useCorpus){
if(CorpusCheck_choice.check(danmu,uid)){
ban_user({uid,name,ct,ts,reason:'语料库封禁'});
continue;
}
}
// 查询语料库结束
let deleteMark=true,temp_length=window.globalSaver[uid].length;
if(temp_length>startCheck){
if(prepareDelete[uid])continue;
let allcompare=0;
for(let i=1;deleteMark&&i<temp_length;i++){
allcompare=(allcompare*(i-1)+compare(window.globalSaver[uid][temp_length-i][1],window.globalSaver[uid][temp_length-i-1][1]))/i;
if(i>2 && allcompare>ban_limit)break;
}
if(allcompare>ban_limit){
ban_user({uid,name,ct,ts,reason:'时间范围内近似发言过多'});
}
}
}
}
}
}
});
globalObserver.observe(document.body.querySelector('#chat-items'),{childList:true});
show('机器人自动封禁装置，启动!');
show(`设定定时任务：自动清理小本本 1次/${timeRange/1000}s`);
intervalId=setInterval(()=>{
let nowtime=Date.now();
count_clear++;
for(let i in window.globalSaver){
window.globalSaver[i]=window.globalSaver[i].filter((item)=>nowtime-item[0]<timeRange);
if(window.globalSaver[i].length==0){
delete window.globalSaver[i];
}
}
},timeRange);
}
function stop(){//优雅关闭
if(globalObserver)globalObserver.disconnect();
if(intervalId)clearInterval(intervalId);
globalObserver=null;
clearInterval(intervalId);
show('机器人自动封禁装置已退出');
}
function ban_user({uid,name='',ct,ts,Saver,reason}){
if(prepareDelete[uid])return;
prepareDelete[uid]=true;
count_ban++;
show(`自动禁言${name}(${uid})`);
ts=ts||Date.now();
Saver=Saver||deepCopy(window.globalSaver[uid]);
window.ban_db.push([Number(ts)*1000,name,uid,Saver,ct,reason]);
if(!isMaster){
sendMessage('event_add_ban',{uid,name,ct,ts,Saver,reason,comeFrom:RoomShortID});
show('已发送至主节点');
return;
}
fetch('https://api.live.bilibili.com/banned_service/v2/Silent/add_block_user',
{method:'POST',
credentials: "include",
headers:{'Content-Type':'application/x-www-form-urlencoded'},
body:createFormData({roomid:RoomLongID,block_uid:uid,hour:720,csrf_token:csrf,csrf:csrf})})
.then(res=>res.json())
.then(res=>{
if(res.code==0){
//delete prepareDelete[uid];
}
})
}
function compare(s1,s2) {
let len1=s1.length,len2=s2.length;
let d=[];
let i,j;
for(i = 0;i <= len1;i++){
d[i]= i;
}
for(i = 1;i <= len2;i++){
let left=i,up=i-1;
for(j = 1;j <= len1;j++) {
let cost = s2[i-1] == s1[j-1] ? 0 : 1;
left= Math.min(d[j]+1,left+1,up+cost);
up=d[j];
d[j]=left;
}
}
return Math.min(1-d[len1]/len1,1-d[len1]/len2);
}
/*过滤函数*/
function filter1(s){
let max_in=0,temp_save={};
for(let i of s){
if(!temp_save[i])temp_save[i]=0;
temp_save[i]++;
max_in=Math.max(max_in,temp_save[i]);
}
return (max_in/s.length)>filter1_config;
}
function filter2(s){
for(let i=0;i<filter2_config.length;i++){
if(s.indexOf(filter2_config[i])>-1)return true;
}
return false;
}
function ban_filter1(s,uid){
if(window.globalSaver[uid]&& window.globalSaver[uid].length>0){
for(let i of ban_filter1_config){
if(s.indexOf(i)>-1){
for(let j of ban_filter1_config){
if(window.globalSaver[uid][0].indexOf(j)>-1){
return true;
}
}
}
}
}
return false;
}
function ban_filter2(s){
for(let i=window.ban_db_window.length-1;i>-1;i--){
if(compare(s,window.ban_db_window[i])>0.55){
return true;
}
}
return false;
}
/*工具函数*/
function getCookie(name){
let arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
if(arr=document.cookie.match(reg)){return unescape(arr[2]);}
else{return null;}
}
function createFormData(data){
let result=[];
for(let key in data){
result.push(`${key}=${data[key]}`)
}
return result.join('&')
}
function show(str){
console.log(`[${RoomShortID}]> `+str+' '.repeat(40-getBytes(str))+(new Date()).toLocaleString());
}
function easy_show(str){
console.log(`[${RoomShortID}]> `+str);
}
function getBytes(str){
return str.replace(/[^\u0000-\u00ff]/g,' ').length
}
function deepCopy(data){
let databak=[]
for(let i in data){
databak.push([...data[i]])
}
return databak
}
function waitCreat(obj,prop,sleep=10){
return new Promise((resolve,reject)=>{
if(obj[prop]){
resolve(obj[prop]);
return;
}
let waiter=setInterval(()=>{
if(obj[prop]){
clearInterval(waiter);
resolve(obj[prop]);
}
},sleep)
})
}
String.prototype.map=function(f){return Array.from(this).map(f).join('');}
async function allAwait(arr){
let rs=[];
for(let i=0;i<arr.length;i++){
rs.push(await arr)
}
return rs
}
async function report(uid,msg,ts,ct){
let res=await fetch('https://api.live.bilibili.com/room_ex/v1/Danmu/danmuReport',
{method:'POST',
credentials: "include",
headers:{'Content-Type':'application/x-www-form-urlencoded'},
body:createFormData({roomid:RoomLongID,uid:uid,msg:msg,reason:'垃圾广告',ts:ts,sign:ct,csrf_token:csrf,csrf:csrf})})
return await res.json()
}
/*语料库类*/
function deformate(danmu){
danmu=danmu.map((a)=>{
if(ReplaceDict[a])a=ReplaceDict[a];
let code=a.charCodeAt();
if(code==12288)return '';
if(code>65280 &&code<65375)return String.fromCharCode(code-65248);
if (code >= 0x0030 && code <= 0x0039 ||
code >= 0x2460 && code <= 0x249b ||
code >= 0x3220 && code <= 0x3229 ||
code >= 0x3248 && code <= 0x324f ||
code >= 0x3251 && code <= 0x325f ||
code >= 0x3280 && code <= 0x3289 ||
code >= 0x32b1 && code <= 0x32bf ||
code >= 0xff10 && code <= 0xff19)return '#';
return a;
});
danmu=danmu.toLowerCase().replace(/\d/g,'#').replace(/[.|/\@~*&^ +-]/g,'');
return danmu;
}
function CorpusCheck_base(maxlimit){
this.maxlimit=maxlimit;
this.Corpus=JSON.parse(localStorage.getItem('Corpus_base'))||[];
this.check=function(danmu){
danmu=deformate(danmu);
for(let i=this.Corpus.length-1;i>-1;i--){
if(compare(this.Corpus[i],danmu)>this.maxlimit){
return true;
}
}
return false;
};
this.addCorpus=function(){
let success_count=0;
for(let i=0;i<window.ban_db.length;i++){
let danmu=window.ban_db[i][3][0][1];
if(this.addSingle(danmu))success_count++;
}
localStorage.setItem('Corpus_base',JSON.stringify(this.Corpus));
easy_show(`已添加${success_count}条新记录到Corpus_base语料库`);
};
this.addSingle=function(danmu){
let result=this.check(danmu);
if(result)return false;
this.Corpus.push(deformate(danmu));
return true;
}
}
function CorpusCheck_special(maxlimit,uidcheck){//共享Corpus_base语料库
CorpusCheck_base.call(this,maxlimit);
let bak=this.check;
this.check=function(danmu,uid){
danmu=deformate(danmu).replace(/#\D|\D#/g,'##');
if(uid&&uidcheck&&!uidcheck(uid))return false;
return bak.call(this,danmu)
}
}
function CorpusCheck_lost(maxlost){//数量容易过大，建议损失要控制在3字节以内
this.maxlost=maxlost;
if(maxlost>=0.25)throw('损失过大，易造成内存溢出');
this.Corpus=JSON.parse(localStorage.getItem('Corpus_lost'))||{};
this.getLostString=function*(str,maxLost){
yield str;
let tempresult=[str]
for(let i=1;i<=maxLost;i++){
let secondresult=[];
let tempsave={};
for(let j of tempresult){
let thelength=j.length,lastone;
for(let z=0;z<thelength;z++){
if(j[z]==lastone)continue;
lastone=j[z];
let theone=j.substring(0,z)+j.substring(z+1);
if(tempsave[theone])continue;
tempsave[theone]=true;
yield theone;
secondresult.push(theone);
}
}
tempresult=secondresult;
}
};
this.check=function(danmu){//随机损失法
danmu=deformate(danmu);
for(let i of this.getLostString(danmu,~~(this.maxlost*danmu.length))){
if(this.Corpus[i]){
return true
}
}
return false;
};
this.addCorpus=function(){
let tempsave={};
for(let i=0;i<window.ban_db.length;i++){
let danmu=deformate(window.ban_db[i][3][0][1]);
if(tempsave[danmu])continue;
tempsave[danmu]=true;
console.log(this.getLostString(danmu,~~(this.maxlost*danmu.length)));
for(let i of this.getLostString(danmu,~~(this.maxlost*danmu.length)))this.Corpus[i]=true;
}
localStorage.setItem('Corpus_lost',JSON.stringify(this.Corpus));
easy_show('已添加到Corpus_lost语料库');
}
}
function CorpusCheck_equal(){
this.Corpus=JSON.parse(localStorage.getItem('Corpus_equal'))||{};
this.check=function(danmu){
danmu=deformate(danmu);
if(this.Corpus[danmu])return true;
return false;
}
this.addCorpus=function(){
let tempsave={};
for(let i=0;i<window.ban_db.length;i++){
let danmu=deformate(window.ban_db[i][3][0][1]);
if(tempsave[danmu])continue;
tempsave[danmu]=true;
this.Corpus[danmu]=true;
}
localStorage.setItem('Corpus_equal',JSON.stringify(this.Corpus));
easy_show('已添加到Corpus_equal语料库');
}
}
/*菜单函数*/
window.autoban={
showBan(){
if(!window.ban_db.length){
easy_show('暂无封禁记录哦~')
}
for(let i in window.ban_db){
easy_show(`用户名:${window.ban_db[i][1]} UID:${window.ban_db[i][2]} 封禁时间：${(new Date(window.ban_db[i][0])).toLocaleString()} 最后发言记录：${window.ban_db[i][3][window.ban_db[i][3].length-1][1]} 原因：${window.ban_db[i][5]}`)
}
},
showStatus(){
easy_show('感谢使用自动封禁装置!');
easy_show(`装置启动时间：${(new Date(startTime)).toLocaleString()}`);
easy_show(`累计弹幕入库次数: ${count_in}`);
easy_show(`累计弹幕封禁次数: ${count_ban}`);
easy_show(`累计库存清理次数: ${count_clear}`);
},
clearUID(uid){
for(let i=window.ban_db.length-1;i>-1;i--){
if(window.ban_db[i][2]==uid){
let user=window.ban_db.splice(i,1)[0];
easy_show(`已删除${user[1]}(${user[2]})的封禁记录`);
return;
}
}
easy_show(`未找到UID为${uid}的封禁记录`);
},
addCorpus(){CorpusCheck_choice.addCorpus()},
allReport(){
let waitArr=[]
for(let i in window.ban_db){
waitArr.push(report(window.ban_db[i][2],window.ban_db[i][3][window.ban_db[i][3].length-1][1],window.ban_db[i][0]/1000,window.ban_db[i][4]));
let temp=window.ban_db[i][3][0][1];
if(!ban_filter2(temp)){
if(window.ban_db_window.length>=ban_filter2_config)window.ban_db_window.shift();
window.ban_db_window.push(temp);
}
}
this.addCorpus();
window.ban_db=[];
allAwait(waitArr).then((result)=>{easy_show('全部举报完毕');console.log(result)})
}
}
/*调试函数*/
window.debug_autoban={
saveBanDB:()=>{
localStorage.setItem('ban_db',JSON.stringify(window.ban_db));
},
restoreBanDB:()=>{
window.ban_db=JSON.parse(localStorage.getItem('ban_db'))||[];
},
deformate:deformate
}
/*探针模块*/
async function sendMessage(key,value){
let newKey='autobanEvent-'+key;
let newValue=JSON.stringify({data:value,timstamp:Date.now()});
await getLock('autobanWrite-'+newKey);
localStorage.setItem(newKey,newValue);
releaseLock('autobanWrite-'+newKey);
};
//注册事件锁
function getLock(key,sleep=10,sleepMax=1000){
return new Promise((resolve,reject)=>{
let sleepNow=sleepMax;
if(!localStorage.hasOwnProperty(key)){
resolve(true);
return;
}
let waiter=setInterval(()=>{
if(!localStorage.hasOwnProperty(key)){
localStorage.setItem(key);
clearInterval(waiter);
resolve(true);
}
sleepNow-=10;
if(sleepNow<=0){
clearInterval(waiter);
reject(false);
}
},sleep)
})
}
function releaseLock(key){
localStorage.removeItem(key);
}
window.addEventListener("storage",function(ev){
if(!ev.newValue)return;
if(ev.key.match(/^autobanEvent-/g)){
let key=ev.key.replace(/^autobanEvent-/,'');
let value=JSON.parse(ev.newValue).data;
if(localStorage.hasOwnProperty(ev.key))localStorage.removeItem(ev.key);
if(EventPool[key]&&value)EventPool[key](value);
}
})
function event_add_ban({uid,name,ct,ts,Saver,reason,comeFrom}){
if(!isMaster)return;
show(`收到来自房间${comeFrom}探针的封禁事件`);
ban_user({uid,name,ct,ts,Saver,reason});
}
function event_add_point({comeFrom}){
if(!isMaster)return;
show(`来自房间${comeFrom}的探针已上线`)
}
