【分享】小鹅通 pri-cdn-tx.xiaoeknow.com开头的视频下载方法

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小鹅通 pri-cdn-tx.xiaoeknow.com开头的视频下载方法

环境

• win10
• Python3.9

方法一：手动抓包拼接下载地址

pri-cdn-tx.xiaoeknow.com开头的视频，m3u8文件中ts地址是加密的，没有办法直接提取出来替换 1.解析sign、us

    def get_detail_info(self, resource_id):
        """
        提取视频原始下载地址和参数：
        'param': '?sign=8c366cd81db547a00172a39d032444f0&t=63948ea8&us=bvZemXXVQx'
        """
        headers = {
            'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Mobile Safari/537.36 Edg/105.0.1343.33',
            'cookie': self.cookie
        }
        data = {
            'bizData[resource_id]': resource_id,
            'bizData[product_id]': self.product_id,
            'bizData[opr_sys]': 'Win32'
        }
        response = requests.post(url, headers=headers, data=data)
        response = response.json()
        video_info = response['data']['video_info']

        video_length = video_info['video_length']
        file_name = video_info['file_name']
        video_urls = response['data']['video_urls']
        # m3u8 解密
        video_urls = json.loads(self.dec_m3u8(video_urls))

        results = []
        for video_url in video_urls:
            host = video_url['ext']['host']
            path = video_url['ext']['path']
            baseuri = host + '/' + path + '/'
            param = '?' + video_url['ext']['param']
            m3u8url = video_url['url']
            # print(baseuri, param)
            info = {
                'm3u8url': m3u8url,
                'baseuri': baseuri,
                'param': param,
                'file_name': file_name
            }
            results.append(info)
        return results

2.去视频播放页面抓包，随便抓一个ts链接

3.手动拼接完整m3u8地址 加密参数： sign=1cedf0ef8927be6e5ac8fb12ec86d44e&t=63974ac0&us=tPzxDODjWL ts地址： https://encrypt-k-vod.xet.tech/2919df88vodtranscq1252524126/ab176def5285890794132337419/drm/v.f230.ts?start=0&end=196655&type=mpegts&sign=3f0b7ebfaa621ee2d9ac9dd5266b635c&t=63974e6c&us=VyiZZyhZvP

方法二：根据视频信息脚本自动导出下载地址

# 店铺IP
APPID = 'appsw2t0vpw1085'
# 视频id
# resource_id = 'v_637cc24ee4b0edc794f95a2a'
# 专栏id
product_id = 'p_5d8f2045bcc1d_i2P94QXd'
# 登录cookie
COOKIE = 'ko_token=354b9d9b1708677a7ed5a5b7ff29754f'

1.获取指定专栏下所有视频id

    def get_h5_resource(self):
        """
        根据课程ID获取课程目录：H5页面 网页端
        ko_token：随便抓个1.0或者2.0的包，提取token
        column_id：课程ID
        """
        cookie = str(self.cookie).split('=')[1]
        headers = {
            "Host": "appav87zodt7514.h5.xiaoeknow.com",
            "sec-ch-ua": "\"Chromium\";v=\"106\", \"Google Chrome\";v=\"106\", \"Not;A=Brand\";v=\"99\"",
            "sec-ch-ua-mobile": "?0",
            "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36",
            "retry": "1",
            "content-type": "application/x-www-form-urlencoded",
            "accept": "application/json, text/plain, */*",
            "req-uuid": "20221101114442000761199",
            "sec-ch-ua-platform": "\"Windows\"",
            "origin": "https://appav87zodt7514.h5.xiaoeknow.com",
            "sec-fetch-site": "same-origin",
            "sec-fetch-mode": "cors",
            "sec-fetch-dest": "empty",
            "accept-language": "zh-CN,zh;q=0.9"
        }
        data = {
            "bizData[column_id]": self.product_id,  # 课程ID
            "bizData[page_index]": "1",
            "bizData[page_size]": "20",
            "bizData[sort]": "desc"
        }
        response = requests.post(url, headers=headers, cookies=cookies, data=data)
        total = response.json().get("data").get("total")
        print(f'共：{total} 节课程')
        data = response.json().get("data").get("list")
        resource_title = [i.get("resource_title") for i in data]
        resource_id = [i.get("resource_id") for i in data]
        for i in zip(resource_title, resource_id):
            print(i)
            yield i

2.提取视频原始下载参数，及加密参数

    def get_detail_info(self, resource_id):
        """
        提取视频原始下载地址和参数：
        'param': '?sign=8c366cd81db547a00172a39d032444f0&t=63948ea8&us=bvZemXXVQx'
        """
        headers = {
            'user-agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Mobile Safari/537.36 Edg/105.0.1343.33',
        }
        data = {
            'bizData[resource_id]': resource_id,
            'bizData[product_id]': self.product_id,
            'bizData[opr_sys]': 'Win32'
        }
        response = requests.post(url, headers=headers, data=data)
        response = response.json()
        video_info = response['data']['video_info']

        video_length = video_info['video_length']
        file_name = video_info['file_name']
        video_urls = response['data']['video_urls']
        # m3u8 解密
        video_urls = json.loads(self.dec_m3u8(video_urls))

        results = []
        for video_url in video_urls:
            host = video_url['ext']['host']
            path = video_url['ext']['path']
            baseuri = host + '/' + path + '/'
            param = '?' + video_url['ext']['param']
            m3u8url = video_url['url']
            # print(baseuri, param)
            info = {
                'm3u8url': m3u8url,
                'baseuri': baseuri,
                'param': param,
                'file_name': file_name
            }
            results.append(info)
        return results

3.提取ts加密文件并拼接下载地址

# 下载m3u8文件
response = requests.get(m3u8url).text
 # 解key 不用key也能下载
 # keyurl = re.findall('URI="(.+?)"',response)[0] + f'&uid={USERID}'
 # key = base64.b64encode(requests.get(keyurl).content).decode()
 # print(f'key: {key}')

 # 找到一个ts链接去生成m3u8链接
 # 普通视频提取ts文件
 # temp_url = re.findall('#EXTINF.+\n(.+?)_.+\?start=',response,re.DOTALL)[0] + '.m3u8'
 # https://pri-cdn-tx.xiaoeknow.com域名的视频提取ts文件：v.f230.m3u8
 temp_url = re.findall(',+\n(.+?).ts\?start=', response, re.DOTALL | re.M | re.S)[0] + '.m3u8'
 print(temp_url)

 # 替换m3u8域名地址，构造下载m3u8视频下载地址
 m3u8url = self.decrypt(baseuri + temp_url + param)
 print(file_name, m3u8url)

效果

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