添加实时直播接口（目前步步高用）

@@ -5,6 +5,7 @@ var cookieParser = require('cookie-parser');
 var logger = require('morgan');
 
 var indexRouter = require('./routes/index');
+var bbgRecordingRouter = require('./routes/bbgRecording');
 
 var app = express();
 
@@ -18,7 +19,18 @@ app.use(express.urlencoded({ extended: false }));
 app.use(cookieParser());
 app.use(express.static(path.join(__dirname, 'public')));
 
+app.all("*",function(req,res,next){
+  //设置允许跨域的域名，*代表允许任意域名跨域
+  res.header("Access-Control-Allow-Origin","*");
+  //允许的header类型
+  res.header("Access-Control-Allow-Headers","content-type");
+  //跨域允许的请求方式
+  res.header("Access-Control-Allow-Methods","POST,OPTIONS");
+  next();
+});
+
 app.use('/', indexRouter);
+app.use('/mp4record',bbgRecordingRouter)
 
 // catch 404 and forward to error handler
 app.use(function(req, res, next) {
@@ -28,12 +40,13 @@ app.use(function(req, res, next) {
 // error handler
 app.use(function(err, req, res, next) {
   // set locals, only providing error in development
-  res.locals.message = err.message;
-  res.locals.error = req.app.get('env') === 'development' ? err : {};
+  // res.locals.message = err.message;
+  // res.locals.error = req.app.get('env') === 'development' ? err : {};
 
   // render the error page
-  res.status(err.status || 500);
-  res.render('error');
+  // res.status(err.status || 500);
+  // res.render('error');
+  res.send({ code: err.status || 500 });
 });
 
 module.exports = app;

+{
+  "PROJECTWINCATALOG": "F:/project/web_capture_release/win-x64",
+  "PROJECTCATALOG": "/Users/zhangaichen/Desktop/学点云/webScreen",
+  "BACKMEDIACONFIG": {
+    "url": "https://pclive.xuedianyun.com/pcBase/pclive2/dev/index.html",
+    "recordMp4": true,
+    "classId": "",
+    "userId": 0,
+    "userName": "",
+    "userRole": "invisible",
+    "portalIP": "saas.xuedianyun.com",
+    "portalPort": 80,
+    "channels": 0,
+    "playRecord": 1,
+    "d": 21600000,
+    "s": 3000,
+    "fa": 15,
+    "k": 0,
+    "w": 1280,
+    "h": 720
+  }
+}

+var express = require('express');
+var router = express.Router();
+const {  exec } = require('child_process');
+const fs = require("fs");
+const axios = require('axios');
+
+const method = require("../config/method")
+
+const { dayTimeYMD } = method
+
+
+let classids = []
+
+/**
+ *
+ * @param {*} id 课堂id
+ */
+class MediaCreat {
+    constructor() {
+    }
+
+    wrieLog(text) {
+        // 写入log
+        let logFile = `./log/${dayTimeYMD().ymd}.txt`
+        fs.appendFileSync(logFile, new Date().toLocaleString() + " " + text + '\r\n');
+    }
+
+    recordingCreat(id,siteId,classUrl,duration,width,height,frameRate,bitrate) {
+        this.wrieLog(" 课堂录制开始:------>" + id)
+        let fileConfig = this.getConfigFileJson()
+        if (!fileConfig) return false
+        const { BACKMEDIACONFIG, PROJECTWINCATALOG, PROJECTCATALOG } = JSON.parse(fileConfig)
+        let mediaDir = PROJECTCATALOG + "/media/"
+        let classDir = PROJECTCATALOG + "/media/" + siteId
+        let ymdDir = null
+        let timeDir = dayTimeYMD().ymd
+        ymdDir = PROJECTCATALOG + "/media/" + siteId + "/" + timeDir
+
+        if (!fs.existsSync(mediaDir)) {
+            fs.mkdirSync(mediaDir);
+        }
+        if (!fs.existsSync(classDir)) {
+            fs.mkdirSync(classDir);
+        }
+        if (!fs.existsSync(ymdDir)) {
+            fs.mkdirSync(ymdDir);
+        }
+        // let files = fs.readdirSync(ymdDir);
+        // let interValGetFile = setInterval(()=>{
+        // this.wrieLog("files：" + files)
+        // if (files.indexOf(id + ".mp4") != -1) {
+        //     this.wrieLog("已存在：" + id + "课堂号，停止继续录制")
+        //     return
+        // }
+
+        // if(!classUrl){
+        //     classUrl = `${BACKMEDIACONFIG.url}?classId=${id}&recordMp4=${BACKMEDIACONFIG.recordMp4}&userId=${BACKMEDIACONFIG.userId}&userName=${BACKMEDIACONFIG.userName}&userRole=${BACKMEDIACONFIG.userRole}&portalIP=${BACKMEDIACONFIG.portalIP}&portalPort=${BACKMEDIACONFIG.portalPort}&channels=${BACKMEDIACONFIG.channels}"`
+        // }
+        // if(!duration){
+        //     duration = BACKMEDIACONFIG.d
+        // }
+        let url = `${PROJECTWINCATALOG}/web_capture_c -o=${ymdDir}/${id}.mp4 -u="${classUrl}" -d=${duration} -s=${BACKMEDIACONFIG.s} -k=${BACKMEDIACONFIG.k} -w=${width} -h=${height} -fa=${frameRate} -vb=${bitrate}`
+        this.wrieLog("全地址"+url)
+        exec(url, { maxBuffer: 1073741824 }, (err, stdout, stderr) => {
+            if (err != null) {
+                this.wrieLog(" 错误" + id + "：" + err)
+                this.wrieLog(" 错误 stdout" + id + "：" + stdout)
+                this.wrieLog(" 错误 stderr" + id + "：" + stderr)
+                // 删除已存元素
+                classids.splice(classids.findIndex(item => item === id),1)
+                return
+            }
+            // let files = fs.readdirSync(ymdDir);
+            // if (files.indexOf(id + ".mp4") != -1) {
+                // 删除已存元素
+                classids.splice(classids.findIndex(item => item === id),1)
+                this.sendMediaInfo(siteId,id,timeDir)
+            // }
+        })
+    }
+    // 上报地址
+    async sendMediaInfo(siteId,id,timeDir){
+        // https://testmp4.obs.cn-north-4.myhuaweicloud.com/oss/media/eebbktest/20210326/1657547103.mp4
+        let MediaUrl = `https://testmp4.obs.cn-north-4.myhuaweicloud.com/oss/media/${siteId}/${timeDir}/${id}.mp4`
+        let urlSizeId = {
+            "eebbktest": "gdbbkwxyace",
+            "gdbbk":"gdbbkwx",
+            "gdbbkdev":"gdbbkwxtest"
+        }
+        let requestUrl = `https://${urlSizeId[siteId]}.xuedianyun.com/bbgserver/app/course/updateRecordUrl`
+        let result = await axios.post(
+            requestUrl,
+            {meetingNumber:id,url:MediaUrl},
+            {headers: {'orgId':siteId }}
+            )
+        if(result.data){
+            this.wrieLog("更新视频地址结果："+JSON.stringify(result.data))
+        }
+    }
+
+    getConfigFileJson() {
+        const buffer = fs.readFileSync(process.cwd() + "/config/realTimeConfig.json")
+        return String(buffer)
+    }
+}
+
+/**
+ * {
+ * "classId":[{ classId: '389675110', siteId: 'kuaikuenglish' }]
+ * }
+ */
+router.post('/recording/:id', function (req, res, next) {
+    new MediaCreat().wrieLog("录制启动:------>")
+    let fileConfig = new MediaCreat().getConfigFileJson()
+    if (!fileConfig) return false
+    /**
+     * classId：课堂号
+     * siteId：机构编码
+     * url：课堂地址
+     * duration：录制时长
+     * width height 录制视频宽高
+     * frameRate 帧率
+     * bitrate 码率
+     */
+    let { classId,siteId,url:classUrl,duration,width,height,frameRate,bitrate } = req.body
+
+    if (classId && siteId && classUrl && duration && width && height && frameRate && bitrate) {
+        if(!Number.isInteger(classId) || !Number.isInteger(duration) || !Number.isInteger(width) || !Number.isInteger(height) || !Number.isInteger(frameRate) || !Number.isInteger(bitrate)){
+            res.send({ code: "3", message: "参数类型错误" });
+            return
+        }
+        let maxTime = 10*60*60*1000
+        if(duration < 0 || duration > maxTime){
+            res.send({ code: "4", message: "参数范围错误" });
+            return
+        }
+        // 避免多次重复课堂号请求
+        if(!classids.includes(classId)){
+            // 没有正在录制的该课堂
+            classids.push(classId)
+            bitrate = bitrate * 1024 // 转换 * 1024
+            new MediaCreat().recordingCreat(classId, siteId,classUrl,duration,width,height,frameRate,bitrate)
+            res.send({ code: "0" });
+        }else{
+            res.send({ code: "2", message: "重复请求课堂号" });
+        }
+    } else {
+        res.send({ code: "1", message: "缺少参数" });
+    }
+
+})
+
+
+module.exports = router;