项目地址是：https://www.chenshiyang.com/dytk
接下来我们分析下源码简要看下实现原理。
实现原理
该项目不需要使用模型(models), 最核心的只有两个页面：一个主页面(home)展示包含下载url地址的表单，一个下载页面(download)处理表单请求，并展示去水印后的视频文件地址及文件大小，以及用于手机预览的二维码。
对应两个核心页面的路由如下所示，每个url对应一个视图函数。
# urls.py
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from django.urls import pathfrom web.views import home, downloadurlpatterns = [ path('home', home), path('downloader', download),] |
#web/urls.py
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from django.http import httpresponsefrom django.shortcuts import render, redirect# create your views here.from common.utils import format_duration, load_mediafrom common.douyin import dydef home(request): """首页""" return render(request, 'home.html')def download(request): """下载""" url = request.post.get('url', none) assert url != none dy = dy() data = dy.parse(url) mp4_path, mp4_content_length = load_media(data['mp4'], 'mp4') mp3_path, mp3_content_length = load_media(data['mp3'], 'mp3') realpath = ''.join(['https://www.chenshiyang.com', mp4_path]) print('realpath---------------------', realpath) if len(data['desc'].split('#')) > 2: topic = data['desc'].split('#')[2].rstrip('#') return render(request, 'download.html', locals()) |
可以看出通过home页面表单提交过来的下载url会交由download函数处理。common模块的douyin.py中定义的dy类负责对url继续解析，爬取相关视频地址，通过自定义utils.py中的load_media方法下载文件，并返回文件路径以及文件大小。
由于解析下载url，从抖音爬取数据的代码都封装到dy类里了，所以我们有必要贴下这个类的代码。另外，我们还需要贴下load_media这个方法的代码。
# common/douyin.py
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# -*- coding: utf-8 -*-# @time : 2020-07-03 13:10# @author : chenshiyang# @email : chenshiyang@blued.com# @file : douyin.py# @software: pycharmimport refrom urllib.parse import urlparseimport requestsfrom common.utils import format_durationclass dy(object): def __init__(self, app=none): self.app = app if app is not none: self.init_app(app) self.headers = { 'accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9', # 'accept-encoding': 'gzip, deflate, br', 'accept-language': 'zh-cn,zh;q=0.9', 'cache-control': 'no-cache', 'cookie': 'sid_guard=2e624045d2da7f502b37ecf72974d311%7c1591170698%7c5184000%7csun%2c+02-aug-2020+07%3a51%3a38+gmt; uid_tt=0033579d9229eec4a4d09871dfc11271; sid_tt=2e624045d2da7f502b37ecf72974d311; sessionid=2e624045d2da7f502b37ecf72974d311', 'pragma': 'no-cache', 'sec-fetch-dest': 'document', 'sec-fetch-mode': 'navigate', 'sec-fetch-site': 'none', 'sec-fetch-user': '?1', 'upgrade-insecure-requests': '1', 'user-agent': 'mozilla/5.0 (iphone; cpu iphone os 13_2_3 like mac os x) applewebkit/605.1.15 (khtml, like gecko) version/13.0.3 mobile/15e148 safari/604.1' } self.domain = ['www.douyin.com', 'v.douyin.com', 'www.snssdk.com', 'www.amemv.com', 'www.iesdouyin.com', 'aweme.snssdk.com'] def init_app(self, app): self.app = app def parse(self, url): share_url = self.get_share_url(url) share_url_parse = urlparse(share_url) if share_url_parse.netloc not in self.domain: raise exception("无效的链接") dytk = none vid = re.findall(r'\/share\/video\/(\d*)', share_url_parse.path)[0] match = re.search(r'\/share\/video\/(\d*)', share_url_parse.path) if match: vid = match.group(1) response = requests.get( share_url, headers=self.headers, allow_redirects=false) match = re.search('dytk: "(.*?)"', response.text) if match: dytk = match.group(1) if vid: return self.get_data(vid, dytk) else: raise exception("解析失败") def get_share_url(self, url): response = requests.get(url, headers=self.headers, allow_redirects=false) if 'location' in response.headers.keys(): return response.headers['location'] elif '/share/video/' in url: return url else: raise exception("解析失败") def get_data(self, vid, dytk): url = f"https://www.iesdouyin.com/web/api/v2/aweme/iteminfo/?item_ids={vid}&dytk={dytk}" response = requests.get(url, headers=self.headers, ) result = response.json() if not response.status_code == 200: raise exception("解析失败") item = result.get("item_list")[0] author = item.get("author").get("nickname") mp4 = item.get("video").get("play_addr").get("url_list")[0] cover = item.get("video").get("cover").get("url_list")[0] mp4 = mp4.replace("playwm", "play") res = requests.get(mp4, headers=self.headers, allow_redirects=true) mp4 = res.url desc = item.get("desc") mp3 = item.get("music").get("play_url").get("url_list")[0] data = dict() data['mp3'] = mp3 data['mp4'] = mp4 data['cover'] = cover data['nickname'] = author data['desc'] = desc data['duration'] = format_duration(item.get("duration")) return data |
从代码你可以看到返回的data字典里包括了mp3和mp4源文件地址，以及视频的封面，作者昵称及描述等等。
接下来你可以看到load_media方法爬取了视频到本地，并提供了新的path和大小。
#common/utils.py
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# -*- coding: utf-8 -*-# @time : 2020-06-29 17:26# @author : chenshiyang# @email : chenshiyang@blued.com# @file : utils.py# @software: pycharmimport osimport timeimport requestsdef format_duration(duration): """ 格式化时长 :param duration 毫秒 """ total_seconds = int(duration / 1000) minute = total_seconds // 60 seconds = total_seconds % 60 return f'{minute:02}:{seconds:02}'suffixes = {1000: ['kb', 'mb', 'gb', 'tb', 'pb', 'eb', 'zb', 'yb'], 1024: ['kib', 'mib', 'gib', 'tib', 'pib', 'eib', 'zib', 'yib']}def approximate_size(size, a_kilobyte_is_1024_bytes=true): '''convert a file size to human-readable form. keyword arguments: size -- file size in bytes a_kilobyte_is_1024_bytes -- if true (default), use multiples of 1024 if false, use multiples of 1000 returns: string ''' if size < 0: raise valueerror('number must be non-negative') multiple = 1024 if a_kilobyte_is_1024_bytes else 1000 for suffix in suffixes[multiple]: size /= multiple if size < multiple: return '{0:.1f} {1}'.format(size, suffix) raise valueerror('number too large')def do_load_media(url, path): """ 对媒体下载 :param url: 多媒体地址 :param path: 文件保存路径 :return: none """ try: headers = { "user-agent": "mozilla/5.0 (iphone; cpu iphone os 13_2_3 like mac os x) applewebkit/605.1.15 (khtml, like gecko) version/13.0.3 mobile/15e148 safari/604.1"} pre_content_length = 0 # 循环接收视频数据 while true: # 若文件已经存在，则断点续传，设置接收来需接收数据的位置 if os.path.exists(path): headers['range'] = 'bytes=%d-' % os.path.getsize(path) res = requests.get(url, stream=true, headers=headers) content_length = int(res.headers['content-length']) # 若当前报文长度小于前次报文长度，或者已接收文件等于当前报文长度，则可以认为视频接收完成 if content_length < pre_content_length or ( os.path.exists(path) and os.path.getsize(path) == content_length): break pre_content_length = content_length # 写入收到的视频数据 with open(path, 'ab') as file: file.write(res.content) file.flush() print('receive data，file size : %d total size:%d' % (os.path.getsize(path), content_length)) return approximate_size(content_length, a_kilobyte_is_1024_bytes=false) except exception as e: print('视频下载异常:{}'.format(e))def load_media(url, path): basepath = os.path.abspath(os.path.dirname(os.path.dirname(__file__))) # 生成13位时间戳 suffixes = str(int(round(time.time() * 1000))) path = ''.join(['/media/', path, '/', '.'.join([suffixes, path])]) targetpath = ''.join([basepath, path]) content_length = do_load_media(url, targetpath) return path, content_lengthdef main(url, suffixes, path): load_media(url, suffixes, path)if __name__ == "__main__": # url = 'https://aweme.snssdk.com/aweme/v1/play/?video_id=v0200fe70000br155v26tgq06h08e0lg&ratio=720p&line=0' # suffixes = 'test' # main(url, suffixes, 'mp4',) print(approximate_size(3726257, a_kilobyte_is_1024_bytes=false)) |
接下来我们看下模板, 这个没什么好说的。
# templates/home.html
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{% extends "base.html" %}{% block content %} <div class="jumbotron custom-jum no-mrg"> <div class="container"> <div class="row"> <div class="col-md-12"> <div class="center"> <div class="home-search"> <h1>抖音无水印视频下载器</h1> <h2>将抖音无水印视频下载到mp4和mp3</h2> </div> <div class="form-home-search"> <form id="form_download" action='https://www.chenshiyang.com/dytk/downloader' method='post'> <div class="input-group col-lg-10 col-md-10 col-sm-10"> <input name="url" class="form-control input-md ht58" placeholder="输入抖音视频 url ..." type="text" required="" value=""> <span class="input-group-btn"><button class="btn btn-primary input-md btn-download ht58" type="submit" id="btn_submit">下载</button></span> </div> </form> </div> </div> </div> </div> </div> </div> </div> {% endblock %} |
# templates/download.html
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{% extends "base.html" %}{% block content %} <div class="page-content"> <div class="container"> <div class="row"> <div class="col-lg-12 col-centered"> <div class="ads mrg-bt20 text-center"> <ins class="adsbygoogle" style="display:inline-block;width:728px;height:90px" data-ad-client="ca-pub-2984659695526033" data-ad-slot="5734284394"></ins> </div> <div class="card"> <div class="row"> <div class="col-md-4 col-sm-4"> <a href="{{mp4_path}}" rel="external nofollow" rel="external nofollow" data-toggle="modal" class="card-aside-column img-video" style="height: 252px; background: url("{{data.cover}}") 0% 0% / cover;" title=""> <span class="btn-play-video"><i class="glyphicon glyphicon-play"></i></span> <p class="time-video" id="time">{{data.duration}}</p> </a> <h5>作者: {{data.nickname}}</h5> <h5><a href="#" rel="external nofollow" >{{topic}} <i class="open-new-window"></i></a></h5> <p class="card-text">{{data.desc}}</p> </div> <div class="col-md-8 col-sm-8 col-table"> <table class="table"> <thead> <tr> <th>format</th> <th>size</th> <th>downloads</th> </tr> </thead> <tbody> <tr> <td>mp4</td> <td>{{mp4_content_length}}</td> <td> <a href="{{mp4_path}}" rel="external nofollow" rel="external nofollow" class="btn btn-download" download="">下载</a> </td> </tr> <tr> <td>mp3</td> <td>{{mp3_content_length}}</td> <td> <a href="{{mp3_path}}" rel="external nofollow" class="btn btn-download" download="">下载</a> </td> </tr> </tbody> </table> </div> </div> </div> <div class="card card-qrcode"> <div class="row"> <div class="col-md-12 qrcode"> <div class="text-center"> <p class="qrcode-p">扫描下面的二维码直接下载到您的智能手机或平板电脑！</p> </div> </div> <div class="col-md-4 col-centered qrcode"> <div id="qrcode" title="{{realpath}}"> <script src="/static/js/qrcode.min.js"></script> <script type="text/javascript"> new qrcode(document.getelementbyid("qrcode"), { text: "{{realpath}}", width: 120, height: 120, correctlevel: qrcode.correctlevel.l });</script> </div> </div> </div> </div> </div> </div> </div></div>{% endblock %} |
完整源码地址：
https://github.com/tinysheepyang/python_api。
以上就是django实现在线无水印抖音视频下载(附源码及地址)的详细内容，更多关于django 无水印抖音视频下载的资料请关注服务器之家其它相关文章！
原文链接：https://mp.weixin.qq.com/s?__biz=MjM5OTMyODA4Nw==&mid=2247484839&idx=1&sn=7682815ebf82cf8bf2e4e773f2960d1b
