python3下载抖音视频

# -*- coding:utf-8 -*-
from contextlib import closing
import requests, json, re, os, sys, random
from ipaddress import ip_address
from subprocess import Popen, PIPE
import urllib

class DouYin(object):
	def __init__(self, width = 500, height = 300):
		"""
		抖音App视频下载
		"""
		rip = ip_address('0.0.0.0')
		while rip.is_private:
			rip = ip_address('.'.join(map(str, (random.randint(0, 255) for _ in range(4)))))
		self.headers = {
			'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
			'accept-encoding': 'gzip, deflate, br',
			'accept-language': 'zh-CN,zh;q=0.9',
			'pragma': 'no-cache',
			'cache-control': 'no-cache',
			'upgrade-insecure-requests': '1',
			'user-agent': 'Mozilla/5.0 (Linux; U; Android 5.1.1; zh-cn; MI 4S Build/LMY47V) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/53.0.2785.146 Mobile Safari/537.36 XiaoMi/MiuiBrowser/9.1.3',
			'X-Real-IP': str(rip),
			'X-Forwarded-For': str(rip),
		}

	def get_video_urls(self, user_id, type_flag='f'):
		"""
		获得视频播放地址
		Parameters:
			user_id：查询的用户UID
		Returns:
			video_names: 视频名字列表
			video_urls: 视频链接列表
			nickname: 用户昵称
		"""
		video_names = []
		video_urls = []
		share_urls = []
		max_cursor = 0
		has_more = 1
		i = 0
		share_user_url = 'https://www.douyin.com/share/user/%s' % user_id
		share_user = requests.get(share_user_url, headers=self.headers)
		while share_user.status_code != 200:
			share_user = requests.get(share_user_url, headers=self.headers)
		_dytk_re = re.compile(r"dytk\s*:\s*'(.+)'")
		dytk = _dytk_re.search(share_user.text).group(1)
		_nickname_re = re.compile(r'<p class="nickname">(.+?)<\/p>')
		nickname = _nickname_re.search(share_user.text).group(1)
		urllib.request.urlretrieve('https://raw.githubusercontent.com/Jack-Cherish/python-spider/master/douyin/fuck-byted-acrawler.js', 'fuck-byted-acrawler.js')
		try:
			Popen(['node', '-v'], stdout=PIPE, stderr=PIPE).communicate()
		except (OSError, IOError) as err:
			print('请先安装 node.js: https://nodejs.org/')
			sys.exit()
		user_url_prefix = 'https://www.douyin.com/aweme/v1/aweme/favorite' if type_flag == 'f' else 'https://www.douyin.com/aweme/v1/aweme/post'
		print('解析视频链接中')
		while has_more != 0:
			process = Popen(['node', 'fuck-byted-acrawler.js', str(user_id)], stdout=PIPE, stderr=PIPE)
			_sign = process.communicate()[0].decode().strip('\n').strip('\r')
			user_url = user_url_prefix + '/?user_id=%s&max_cursor=%s&count=21&aid=1128&_signature=%s&dytk=%s' % (user_id, max_cursor, _sign, dytk)
			req = requests.get(user_url, headers=self.headers)
			while req.status_code != 200:
				req = requests.get(user_url, headers=self.headers)
			html = json.loads(req.text)
			try:
				while html['aweme_list'] == []:
					i = i + 1
					sys.stdout.write('已重新链接' + str(i) + '次 (若超过100次，请ctrl+c强制停止再重来)' + '\r')
					sys.stdout.flush()
					process = Popen(['node', 'fuck-byted-acrawler.js', str(user_id)], stdout=PIPE, stderr=PIPE)
					_sign = process.communicate()[0].decode().strip('\n').strip('\r')
					user_url = user_url_prefix + '/?user_id=%s&max_cursor=%s&count=21&aid=1128&_signature=%s&dytk=%s' % (user_id, max_cursor, _sign, dytk)
					req = requests.get(user_url, headers=self.headers)
					while req.status_code != 200:
						req = requests.get(user_url, headers=self.headers)
					html = json.loads(req.text)
			except:
				pass
			i = 0
			for each in html['aweme_list']:
				try:
					url = 'https://aweme.snssdk.com/aweme/v1/play/?video_id=%s&line=0&ratio=720p&media_type=4&vr_type=0&test_cdn=None&improve_bitrate=0'
					uri = each['video']['play_addr']['uri']
					video_url = url % uri
				except:
					continue
				share_desc = each['share_info']['share_desc']
				if os.name == 'nt':
					for c in r'\/:*?"<>|':
						nickname = nickname.replace(c, '').strip().strip('\.')
						share_desc = share_desc.replace(c, '').strip()
				share_id = each['aweme_id']
				if share_desc in ['抖音-原创音乐短视频社区', 'TikTok', '']:
					video_names.append(share_id + '.mp4')
				else:
					video_names.append(share_id + '-' + share_desc + '.mp4')
				share_urls.append(each['share_info']['share_url'])
				video_urls.append(video_url)
			max_cursor = html['max_cursor']
			has_more = html['has_more']

		return video_names, video_urls, share_urls, nickname

	def get_download_url(self, video_url, watermark_flag):
		"""
		获得带水印的视频播放地址
		Parameters:
			video_url：带水印的视频播放地址
		Returns:
			download_url: 带水印的视频下载地址
		"""
		# 带水印视频
		if watermark_flag == True:
			download_url = video_url.replace('/play/', '/playwm/')
		# 无水印视频
		else:
			download_url = video_url.replace('/playwm/', '/play/')

		return download_url

	def video_downloader(self, video_url, video_name, watermark_flag=False):
		"""
		视频下载
		Parameters:
			video_url: 带水印的视频地址
			video_name: 视频名
			watermark_flag: 是否下载带水印的视频
		Returns:
			无
		"""
		size = 0
		video_url = self.get_download_url(video_url, watermark_flag=watermark_flag)
		with closing(requests.get(video_url, headers=self.headers, stream=True)) as response:
			chunk_size = 1024
			content_size = int(response.headers['content-length'])
			if response.status_code == 200:
				sys.stdout.write('  [文件大小]:%0.2f MB\n' % (content_size / chunk_size / 1024))

				with open(video_name, 'wb') as file:
					for data in response.iter_content(chunk_size = chunk_size):
						file.write(data)
						size += len(data)
						file.flush()

						sys.stdout.write('  [下载进度]:%.2f%%' % float(size / content_size * 100) + '\r')
						sys.stdout.flush()

	def run(self):
		"""
		运行函数
		Parameters:
			None
		Returns:
			None
		"""
		self.hello()
		print('搜索api需要登录，暂时使用UID下载\n分享用户页面，用浏览器打开短链接，原始链接中/share/user/后的数字即是UID')
		user_id = input('请输入ID (例如95006183):')
		user_id = user_id if user_id else '95006183'
		watermark_flag = input('是否下载带水印的视频 (0-否(默认), 1-是):')
		watermark_flag = watermark_flag if watermark_flag!='' else '0'
		watermark_flag = bool(int(watermark_flag))
		type_flag = input('f-收藏的(默认), p-上传的:')
		type_flag = type_flag if type_flag!='' else 'f'
		save_dir = input('保存路径 (例如"E:/Download/", 默认"./Download/"):')
		save_dir = save_dir if save_dir else "./Download/"
		video_names, video_urls, share_urls, nickname = self.get_video_urls(user_id, type_flag)
		nickname_dir = os.path.join(save_dir, nickname)
		if not os.path.exists(save_dir):
			os.makedirs(save_dir)
		if nickname not in os.listdir(save_dir):
			os.mkdir(nickname_dir)
		if type_flag == 'f':
			if 'favorite' not in os.listdir(nickname_dir):
				os.mkdir(os.path.join(nickname_dir, 'favorite'))
		print('视频下载中:共有%d个作品!\n' % len(video_urls))
		for num in range(len(video_urls)):
			print('  解析第%d个视频链接 [%s] 中，请稍后!\n' % (num + 1, share_urls[num]))
			if '\\' in video_names[num]:
				video_name = video_names[num].replace('\\', '')
			elif '/' in video_names[num]:
				video_name = video_names[num].replace('/', '')
			else:
				video_name = video_names[num]
			video_path = os.path.join(nickname_dir, video_name) if type_flag!='f' else os.path.join(nickname_dir, 'favorite', video_name)
			if os.path.isfile(video_path):
				print('视频已存在')
			else:
				self.video_downloader(video_urls[num], video_path, watermark_flag)
			print('\n')
		print('下载完成!')

	def hello(self):
		"""
		打印欢迎界面
		Parameters:
			None
		Returns:
			None
		"""
		print('*' * 100)
		print('\t\t\t\t抖音App视频下载小助手')
		print('\t\t作者:Jack Cui、steven7851')
		print('*' * 100)


if __name__ == '__main__':
	douyin = DouYin()
	douyin.run()

原文链接