抖音无水印解析 Python

import requests
import re
import os

headers = {
    'User-Agent': 'User-Agent", "Mozilla/5.0 iPhone; CPU iPhone OS 12_1_4 like Mac OS X) AppleWebKit/605.1.15 KHTML, like Gecko) Mobile/16D57 Version/12.0 Safari/604.1',
}


class Douyin:
    def __init__self, url):
        '''
        数据初始化
        :param url:
        '''
        self.url = url
        # self.item_ids = ''
        # self.dytk = ''

    def infoself):
        '''
        获取item_ids和dytk参数
        :return: [item_ids,dytk]
        '''
        url = self.url
        response = requests.geturl, headers=headers)
        now_url = response.url
        pat_item_ids = '/video/.*?)/'
        self.item_ids = re.compilepat_item_ids, re.S).findallnow_url)
        pat_dytk = 'dytk: ".*?)"'
        self.dytk = re.compilepat_dytk, re.S).findallresponse.text)
        printself.item_ids, self.dytk)
        return [self.item_ids[0], self.dytk[0]]

    def videoself):
        '''
        获取无水印视频链接和视频描述
        :return: true_url
        '''
        Douyin.infoself)
        url = 'https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/'
        params = {
            'item_ids': self.item_ids,
            'dytk': self.dytk
        }
        response = requests.geturl, headers=headers, params=params).json)
        self.true_url = response['item_list'][0]['video']['play_addr']['url_list'][0]
        self.des = response['item_list'][0]['desc']
        printself.true_url, self.des)
        return [self.true_url, self.des]

    def downloadself):
        '''
        下载视频
        :return:
        '''
        Douyin.videoself)
        response = requests.getself.true_url, headers=headers).content
        if os.path.exists'video') == False:
            os.mkdir'video')
        with open'video/' + self.des + '.mp4', mode='wb') as f:
            f.writeresponse)


# 主程序
if __name__ == '__main__':
    a = Douyin'https://v.douyin.com/38JgQ3/')
    a.download)