弹幕 - 源代码

弹幕

获取直播弹幕信息并发送详情
当前为 2023-09-19 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         弹幕
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  获取直播弹幕信息并发送详情
// @match        https://liveplatform.taobao.com/*
// @icon         https://cdn.52ym.vip/temp/a0whr-l6z8y-001.ico
// @grant        none
// @license      MIT
// ==/UserScript==

const TIME = 3000;


const platformMap = new Map([
    ['taobao', handleTaoBaoBarrage]
]);

let barrageIds = []; // 存储已处理的弹幕ID

let requestData = {
  "rommId": 0,//直播间ID
  "username":"",//用户
  "content":"",//评论
  "onlineUserCount":0,//在线人数
  "isSub":false,//是否关注
}


//发送弹幕消息
function handleRequest(params) {
    // 构造弹幕数据对象
    let data = {
        nickname: params.username,
        content: params.content
    };

    console.log(data);
    // 将已处理的弹幕ID添加到列表中
    barrageIds.push(params.username+params.content);
    if (barrageIds.length > 300) {
        barrageIds.splice(0, 100);
    }
    httpRequest({
        method:"post",
        url:"http://127.0.0.1:8000/api/live/comment/push/",
        data:params,
        async:true,
    },(res)=>{
        console.log('res:',res)
    },(err)=>{
        console.log("err:",err)
    })
}

//查询直播间ID
function getQueryName(name) {
  var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
  var r = window.location.search.substr(1).match(reg);
  if (r != null) {
    return decodeURI(r[2]);
  }
  return null;
}

function getOnlineCount() {


}


let xmlHttp=""
//推送数据
function httpRequest(requestObj,successFun,failFun) {
    let { url:httpUrl, method, data, async } = requestObj

    xmlHttp = checkBrowser(xmlHttp);

    //请求方式， 转换为大写
    var httpMethod = (method || "Get").toUpperCase();
    //post请求时参数处理
    if (httpMethod === "POST") requestData = JSON.stringify(data)

    xmlHttp.onreadystatechange = function () {
        if (xmlHttp.readyState === 4 && xmlHttp.status === 200) {
            // 请求成功的回调函数
            successFun(JSON.parse(xmlHttp.responseText));

        } else {
            //请求失败的回调函数
            failFun(xmlHttp.responseText);
        }
    }

    // 发送请求
    sendRequest(httpUrl, requestData, httpMethod, async );
}

/**
 * 校验浏览器创建xmlHttp对象
 * @param xmlHttp
 */
function checkBrowser(xmlHttp) {
    //创建 XMLHttpRequest 对象，老版本的 Internet Explorer （IE5 和 IE6）
    //使用 ActiveX 对象：xmlhttp=new ActiveXObject("Microsoft.XMLHTTP")
    if (window.XMLHttpRequest) {
        //code for all new browsers
        xmlHttp = new XMLHttpRequest;

    } else if (window.ActiveXObject) {
        //code for IE5 and IE6
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    }
    // console.log(xmlHttp)
    return xmlHttp;
}

/**
 * 发送请求
 * @param xmlHttp
 * @param requestData
 */
function sendRequest(httpUrl, requestData, httpMethod, async) {

    if (httpMethod === "GET") {
        xmlHttp.open("GET", httpUrl, async);
        xmlHttp.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
        xmlHttp.send(null);
    } else if (httpMethod === "POST") {
        xmlHttp.open("POST", httpUrl, async);
        xmlHttp.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
        xmlHttp.setRequestHeader("Access-Control-Allow-Origin", "*"); // 用来解决跨域
        xmlHttp.send(requestData);
    }
}


//处理弹幕消息
function handleTaoBaoBarrage() {
    let barrageContainer = document.querySelector('#rc-tabs-1-panel-AssistantCommentCard > div.alpw-container > div > div:last-child');

    if (!barrageContainer) {
        return; // Exit if the barrage container element is not found
    }
    let usernameElement = barrageContainer.querySelector('div.alpw-userinfo > div > div > div.alpw-username-text');
    let usernickElement = barrageContainer.querySelector('div.alpw-userinfo > div > div > div.alpw-username-nick')
    let contentElement = barrageContainer.querySelector('div.alpw-comment-content');

    let username = usernameElement.textContent.trim()+usernickElement.textContent.trim();
    let content = contentElement.textContent.trim();
    // 检查是否已处理过该弹幕
    if (barrageIds.includes((username+content))) {
        return;
    }
    const roomId = getQueryName("liveId");
    let is_sub=false;
    if(content.indexOf("关注了主播")!==-1){
        is_sub=true
    }
    requestData = {
      "roomId":roomId,
      "username":username,//用户
      "content":content,//评论
      "onlineCount": 0,//在线人数
      "isSub":is_sub,//是否关注
    }
    handleRequest(requestData);
}

(function () {
    setTimeout(()=>{
        const currUrl = window.location.href;
        platformMap.forEach((value, key) => {
            if (currUrl.indexOf(key) !== -1) {
                setInterval(value, TIME);
            }
        });
    },5000)
})();
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