视频加密流程图:

后端获取保利威的视频播放授权token,提供接口api给前端

参考文档:http://dev.polyv.net/2019/videoproduct/v-api/v-api-play/create-playsafe-token/

在utils下创建polyv.py,编写token生成工具函数，path:utils/polyv.py

utils 是多个模块的公共函数库的文件夹里面存放自己开发的组件

from django.conf import settings

import time

import requests

#pip install requests

import hashlib

class PolyvPlayer(object):

def __init__(self,userId,secretkey,tokenUrl):

"""初始化，提供用户id和秘钥"""

self.userId = userId

self.secretKey = secretkey

self.tokenUrl = tokenUrl

def tomd5(self, value):

"""取md5值"""

return hashlib.md5(value.encode()).hexdigest()

# 获取视频数据的token

def get_video_token(self, videoId, viewerIp, viewerId=None, viewerName='', extraParams='HTML5'):

"""

:param videoId: 视频id

:param viewerId: 看视频用户id

:param viewerIp: 看视频用户ip

:param viewerName: 看视频用户昵称

:param extraParams: 扩展参数

:param sign: 加密的sign

:return: 返回点播的视频的token

"""

ts = int(time.time() * 1000) # 时间戳

plain = {

"userId": self.userId,

'videoId': videoId,

'ts': ts,

'viewerId': viewerId,

'viewerIp': viewerIp,

'viewerName': viewerName,

}

# 按照ASCKII升序 key + value + key + value... + value 拼接

plain_sorted = {}

key_temp = sorted(plain)

for key in key_temp:

plain_sorted[key] = plain[key]

plain_string = ''

for k, v in plain_sorted.items():

plain_string += str(k) + str(v)

# 首尾拼接上秘钥

sign_data = self.secretKey + plain_string + self.secretKey

# 取sign_data的md5的大写

sign = self.tomd5(sign_data).upper()

# 新的带有sign的字典

plain.update({'sign': sign})

# python 提供的发送http请求的模块

result = requests.post(

url=self.tokenUrl,

headers={"Content-type": "application/x-www-form-urlencoded"},

data=plain # 平台所需要携带的数据

).json() # json.loads 把那拿到的数据序列化

token = {} if isinstance(result, str) else result.get("data", {}) # 如果保利威视频平台返回的的字符串 token={} 否则

if token == '':

return result

return token

在 项目开发时的本地配置 配置参数:

配置文件settings/dev.py，代码：

# 保利威视频加密服务

POLYV_CONFIG = {

"userId":"62dc475e3f",

"secretkey":"h6FiaEBRMU",

"tokenUrl":"https://hls.videocc.net/service/v1/token",

}

保利威文档地址:https://my.polyv.net/secure/setting/api

保利威api参考文档:http://dev.polyv.net/2019/videoproduct/v-api/v-api-play/create-playsafe-token/

urls.py，主路由代码：

path(r'polyv/',include('polyv.urls')),

在项目主应用文件夹下创建app

命令:

cd 主应用文件夹下

python3 …/…/manage.py startapp polyv

urls.py，子路由代码：

from django.urls import path,re_path

from . import views

urlpatterns = [

path('video/',views.Video.as_view(),)

]

polyv/views.py，视图代码:

from django.shortcuts import render

# Create your views here.

from rest_framework import status

from lyapi.utils.polyv import PolyvPlayer

from rest_framework.views import APIView

from rest_framework.permissions import IsAuthenticated

from django.conf import settings

from rest_framework.response import Response

class VideoView(APIView):

# vid = '348e998797383060cb19620b1c600203_3'

# permission_classes = [IsAuthenticated, ] #from rest_framework.permissions import IsAuthenticated 登录认证

def get(self,request):

polyv_obj = PolyvPlayer(settings.POLYV_CONF['userid'],settings.POLYV_CONF['secretKey'],settings.POLYV_CONF['tokenUrl']) # 调用polyv文件下的polyv_obj类

# vid = 'cee1047a76927eb43774263cd93bb69f_c' # 存在保利威平台的视频ID

# vid = '348e998797383060cb19620b1c600203_3' # 存在保利威平台的视频ID

vid = request.query_params.get('vid')# 需要把保利威平台的视频ID存在数据库里或者直接或者在前段直接在的Params加 vid cee1047a76927eb43774263cd93bb69f_c

viewerIp = request.META.get('REMOTE_ADDR') # 获取用户访问的IP地址

viewerId = request.user.id # 获取用户的id

viewerName = request.user.username # 获取用户的账号名

token_dict = polyv_obj.get_video_token(vid,viewerIp,viewerId,viewerName) # 调用polyv文件下的polyv_obj类下的get_video_token方法

print(token_dict)

if 'code' in list(token_dict) and token_dict['code'] != 200: # 返回请求失败的信息

return Response(token_dict, status=status.HTTP_403_FORBIDDEN)

'''

返回结果:

{

"code": 403,

"status": "error",

"message": "invalid userId or videoId.",

"data": ""

}

'''

return Response(token_dict) # 返回请求成功的信息

'''

返回结果:

{

"token": "43883858-92a3-4f25-a6e8-701d10d88cde-f2",

"userId": "cee1047a76",

"appId": null,

"videoId": "cee1047a76927eb43774263cd93bb69f_c",

"viewerIp": "127.0.0.1",

"viewerId": "2",

"viewerName": "root",

"extraParams": null,

"ttl": 600000,

"createdTime": 1605614888570,

"expiredTime": 1605615488570,

"iswxa": 0,

"disposable": false

}

'''

到这里后端的api接口就已经写好啦!

前段 vue界面 简写：

在src下的components下新建一个Player.vue

# Player.vue

export default {

name:"Player",

data () {

return {

}

},

mounted() { //如果需要对标签进行一些加工处理，然后再放数据时，需要用mounted这个钩子函数，如果单纯的是获取数据，添加到数据属性中

// 那么用created方法

this.get_video_data();

},

methods: {

get_video_data(){

let user_name = localStorage.username || sessionStorage.username; //token认证

let token = localStorage.token || sessionStorage.token;//token认证

console.log(this.$route.params.vid)

let self = this;

var player = polyvPlayer({

wrap: '#player',

width: document.documentElement.clientWidth - 300,

height: document.documentElement.clientHeight,

vid: this.$route.params.vid,

// forceH5: true,

// code: user_name,

playsafe: (vid, next) =>{

console.log(self)

self.$axios.get(`${self.$settings.Host}/polyv/video/?vid=${self.$route.params.vid}`,{

headers:{

'Authorization':'jwt ' + token

}

}).then((res)=>{

// {‘token':'asasfd'}

next(res.data.token);

}).catch((error)=>{

})

}

});

}

},

computed: {

}

}

src下的router的index.js配置url：

import Vue from 'vue'

import Router from 'vue-router'

import Home from '@/components/Home'

import Login from '@/components/Login'

import Register from "@/components/Register";

import Course from "@/components/Course"

import Detail from "@/components/Detail";

import Cart from "@/components/Cart";

import Order from "@/components/Order";

import Player from "@/components/Player";//Player组件的url 需要复制这里,其他的url忽略

import Myorder from "@/components/Myorder";

Vue.use(Router)

export default new Router({

mode:'history',

routes: [

{

path: '/',

//name: 'heme',

component: Home

},

{

path: '/home',

//name: 'heme',

component: Home

},

{

path: '/user/login',

//name: 'heme',

component: Login

},

{

path: '/register',

//name: 'heme',

component: Register

},

{

path: '/courses',

//name: 'heme',

component: Course

},

{

path: '/courses/detail/:id',

//name: 'heme',

component: Detail

},

{

path: '/cart',

//name: 'heme',

component: Cart

},

{

path: '/order',

//name: 'heme',

component: Order

},

{

path: '/myorder',

//name: 'heme',

component: Myorder

},

{//Player组件的url 需要复制这个括号里的,其他的url忽略

path: '/polyv/player/:vid',

//name: 'heme',

component: Player

},

]

})

自己配置的 访问路径http://www.luffycity.cn:8080/polyv/player/cee1047a76927eb43774263cd93bb69f_c```

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