抖音用户视频爬虫案例(2020)

- [抖音分享页面](https://cloud.tencent.com/developer)
- [抖音视频sign值生成](https://cloud.tencent.com/developer)
    - [运行环境：](https://cloud.tencent.com/developer)
    - [Code：](https://cloud.tencent.com/developer)
- [抖音无水印视频](https://cloud.tencent.com/developer)

import re,os,json,requests

PRO_DIR = os.path.dirname(os.path.abspath(__file__))

less_list = ['d','V','J','t','m','L','R','l','X','b','Z','B','r','3','v','N','D','P','9','1','H','7','T','z','j','f','x','p','h','5','F','.']
add_list = ['a','K','W','M','u','Q','S','A','e','U','O','Y','I','0','k','E','y','c','w','2','s','8','4','6','C','o','g','q','-','i','G','n',]

douyinShareId = '102064772608'      # 分享页面ID
ua = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.122 Safari/537.36'
headers = {"user-agent":ua}


share_url = 'https://www.amemv.com/share/user/{}'.format(douyinShareId)
doc = requests.get(share_url,headers=headers).text


# 提取 signature 获取用户视频数据
p1 = r'tac=\'(?P<tac>[\W\w]{150,}?)\''
pattern1 = re.compile(p1)
p2 = r'dytk ?: ?\'(?P[0-9a-z]*?)\''
pattern2 = re.compile(p2)

tac = pattern1.search(doc).group('tac')
dytk = pattern2.search(doc).group('dytk')
s_tac = "tac=\'{}\'".format(tac)
s1 = """

  抖音_signature破解




"""</span>
s2 <span class="token operator">=</span> <span class="token triple-quoted-string string">"""
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__M.define("douyin_falcon:node_modules/byted-acrawler/dist/runtime", function(l, e) {
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        dycs = __M.require("douyin_falcon:node_modules/byted-acrawler/dist/runtime")
        signc = dycs.sign(&&&)
        document.title=signc
        document.write(signc)

"""
s2 = s2.replace('&&&', douyinShareId)

with open(os.path.join(PRO_DIR, 'douyin_sign.html'), 'w', encoding='utf-8') as fw:
    fw.write(s1 + s_tac + s2)

from selenium import webdriver
option = webdriver.ChromeOptions()
option.add_argument('start-maximized')
option.add_argument('--disable-dev-shm-usage')
option.add_argument('--disable-extensions')
option.add_argument('--disable-gpu')
option.add_argument('--no-sandbox')
option.add_argument('headless')
option.add_argument('disable-infobars')
option.add_argument('--user-agent={}'.format(ua))
driver = webdriver.Chrome(chrome_options=option)
driver.execute_cdp_cmd("Page.addScriptToEvaluateOnNewDocument", {
    "source": """
    Object.defineProperty(navigator, 'webdriver', {
      get: () => undefined
    })
                """ })
driver.get('file:///' + PRO_DIR + '/douyin_sign.html')
sig = driver.title
driver.quit()


if sig[-2] in less_list:
    flag = '-1'
    sig = sig[:-2] + chr(ord(sig[-2])-1) + sig[-1:]
elif sig[-2] in add_list:
    flag = '+1'
    sig = sig[:-2] + chr(ord(sig[-2])+1) + sig[-1:]
else:
    print("新字符:",sig)       #  新字符默认取 ASCII +1
    flag = '+1'
    sig = sig[:-2] + chr(ord(sig[-2])+1) + sig[-1:]

#detail_url = 'https://www.iesdouyin.com/web/api/v2/aweme/post/?user_id={}&sec_uid=&count=21&max_cursor=0&aid=1128&_signature={}&dytk={}'.format(douyinShareId,sig, dytk)

detail_url = 'https://www.amemv.com/web/api/v2/aweme/post/?user_id={}&sec_uid=&count=21&max_cursor=0&aid=1128&_signature={}&dytk={}'.format(douyinShareId,sig, dytk)

data = json.loads(requests.get(detail_url,headers=headers).text)
if len(data['aweme_list']) == 0:
    sig = re.findall('&_signature=(.*?)&',detail_url)[0]
    if flag=='-1':
        new_sig = sig[:-2] + chr(ord(sig[-2])+2) + sig[-1:]
    else:
        new_sig = sig[:-2] + chr(ord(sig[-2])-2) + sig[-1:]
    url = detail_url.replace(sig,new_sig)
    data = requests.get(url,headers={headers}).json()


if data['status_code'] == 0:
    item = []
    for awlist in data['aweme_list']:
        video_list = {}
        statistics = awlist['statistics']
        video = awlist['video']
        digg_count = statistics.get('digg_count')               # 点赞数
        play_count = statistics.get('play_count')               # 播放数
        forward_count = statistics.get('forward_count')         # 转发数
        comment_count = statistics.get('comment_count')         # 评论数
        aweme_id = awlist['aweme_id']                           # 视频id
        desc = awlist.get('desc')                               # 简介
        cover = video['cover']['url_list'][0]                   # 视频封面
        download_addr = video['download_addr']['url_list']      # 下载地址
        share_count = statistics.get('share_count')             # 分享数
        duration = video.get('duration')                        # 持续时间

        video_list['likeNum'] = digg_count
        video_list['forwardNum'] = forward_count
        video_list['commentNum'] = comment_count
        video_list['mid'] = aweme_id
        video_list['content'] = desc
        video_list['videoPic'] = cover
        video_list['videoUrl'] = download_addr[0].replace('play/?','playwm/?')
        video_list['playNum'] = play_count
        item.append(video_list)
    print(item)