爬虫day02

s10day112

内容回顾：
    第一部分：爬虫相关
        1. 谈谈你对http协议的理解？
            规范：
                1. Http请求收发数据的格式
                    GET /index/ http1.1/r/nhost:xxx.com/r/n/r/n
                    POST /index/ http1.1/r/nhost:xxx.com/r/n/r/nuser=xxx

                2. 短连接（无状态）
                    一次请求一次响应之后，就断开连接

                3. 基于TCP协议之上
                    sk = socket()
                    sk.send('GET /index/ http1.1/r/nhost:xxx.com/r/n/r/n')
            常见请求头有哪些？
                host
                content-type
                user-agent
                cookies
                referer，上一次请求地址
            常见的请求方法有哪些？
                GET
                POST
                DELETE
                PUT
                PATCH
                OPTIONS
        2. requests
            用于伪造浏览器发送请求
            参数：
                - url
                - headers
                - data
                - cookies
            响应：
                - content
                - text
                - encoding='gbk'
                - headers
                - cookies.get_dict()

        3. bs
            用于解析HTML格式的字符串
            方法和属性：
                - find
                - find_all
                - attrs
                - get
                - text 

        4. 套路
            - 汽车之家
            - 抽屉新闻：携带user-agent
            - 登录抽屉：第一访问保留cookie，登录时需要再次携带；
            - 自动登录github：获取csrf_token，到底携带那一个cookie

            补充：自动登录github

    第二部分：路飞相关
        1. 公司的组织架构？
            开发：
                - 村长
                - 前端姑娘
                - 涛
                - 云（产品+开发）
            UI：1人
            测试：1人
            运维：1人
            运营：2人
            销售：3人
            班主任：1人
            全职助教：2人
            人事/财务：老男孩共享

        2. 项目架构
            - 管理后台(1)
                - 权限
                - xadmin
            - 导师后台(1)
                - 权限
                - xadmin
            - 主站(1+1+0.5+1)
                - restful api
                - vue.js 

            现在开发：题库系统

        3. 涉及技术点：
            - django
            - django rest framework
            - vue.js
            - 跨域cors
            - redis
            - 支付宝支付
            - 视频播放
                - CC视频
                - 保利
            - 微信消息推送
                - 已认证的服务号
                - 发送模板消息
            - content-type 

今日内容：
    - 拉勾网
    - 抖音
    - requests
    - bs4
    - 初识scrapy框架

内容详细：
    1.拉勾网
        - Token和Code存在页面上，自定义请求头上
        - 重定向：
            - 响应头的Location中获取要重定向的地址
            - 自己去处理
        - 请求发送时需要携带上次请求的code和token 

        原则：
            - 完全模拟浏览器的行为

    2. 爬抖音视频 

    3. requests模块
        参数：
            url
            params
            headers
            cookies
            data
                示例：
                    request.post(
                        data={
                            user:'alex',
                            pwd:'sb'
                        }
                    )

                    user=alex&pwd=sb 

                chrome: formdata
            json
                示例：
                    request.post(
                        json={
                            user:'alex',
                            pwd:'sb'
                        }
                    )

                    '{"user":"alex","pwd":"sb"}'

                chrome: request payload
            allow_redirecs
            stream

            files
                requests.post(
                    url='xxx',
                    files={
                        'f1': open('readme', 'rb')
                    }
                )

            auth
                from requests.auth import HTTPBasicAuth, HTTPDigestAuth

                ret = requests.get('https://api.github.com/user', auth=HTTPBasicAuth('admin', 'admin'))
                print(ret.text)

            timeout
                ret = requests.get('http://google.com/', timeout=1)

                ret = requests.get('http://google.com/', timeout=(5, 1))
            proxies
                proxies = {
                    "http": "61.172.249.96:80",
                    "https": "http://61.185.219.126:3128",
                }
                # proxies = {'http://10.20.1.128': 'http://10.10.1.10:5323'}

                ret = requests.get("https://www.proxy360.cn/Proxy", proxies=proxies)
                print(ret.headers)

                from requests.auth import HTTPProxyAuth
                auth = HTTPProxyAuth('username', 'mypassword')

                r = requests.get("http://www.google.com", proxies=proxyDict, auth=auth)

            证书相关：
                cert
                verify

        session：自动管理cookie和headers（不建议使用）
            import requests

            session = requests.Session()
            i1 = session.get(url="http://dig.chouti.com/help/service")
            i2 = session.post(
                url="http://dig.chouti.com/login",
                data={
                    'phone': "8615131255089",
                    'password': "xxooxxoo",
                    'oneMonth': ""
                }
            )
            i3 = session.post(
                url="http://dig.chouti.com/link/vote?linksId=8589523"
            )
            print(i3.text)

    4. bs4 

        参考示例：https://www.cnblogs.com/wupeiqi/articles/6283017.html

预习：
    1. 安装scrapy
        https://www.cnblogs.com/wupeiqi/articles/6229292.html

        a. 下载twisted
            http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted

        b. 安装wheel
            pip3 install wheel

        c. 安装twisted 

            pip3 install Twisted‑18.7.0‑cp36‑cp36m‑win_amd64.whl

        d. 安装pywin32
            pip3 install pywin32

        e. 安装scrapy
            pip3 install scrapy 

今日课程笔记(teacher)

request、bs4参考博客

import requests
from bs4 import BeautifulSoup

r1 = requests.get(
    url='https://github.com/login'
)
s1 = BeautifulSoup(r1.text,'html.parser')
token = s1.find(name='input',attrs={'name':'authenticity_token'}).get('value')
r1_cookie_dict = r1.cookies.get_dict()

r2 = requests.post(
    url='https://github.com/session',
    data={
        'commit':'Sign in',
        'utf8':'✓',
        'authenticity_token':token,
        'login':'wupeiqi@live.com',
        'password':'sdfasdfasdfasdf'
    },
    cookies=r1_cookie_dict
)
r2_cookie_dict = r2.cookies.get_dict()
r3 = requests.get(
    url='https://github.com/settings/emails',
    cookies=r2_cookie_dict
)
print(r3.text)

github登录

import re
import requests
all_cookie_dict = {}

# ##################################### 第一步：访问登录页面 #####################################
r1 = requests.get(
    url='https://passport.lagou.com/login/login.html',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
    }
)

token =  re.findall("X_Anti_Forge_Token = '(.*)';",r1.text)[0]
code =  re.findall("X_Anti_Forge_Code = '(.*)';",r1.text)[0]
r1_cookie_dict = r1.cookies.get_dict()
all_cookie_dict.update(r1_cookie_dict)

# ##################################### 第二步：去登陆 #####################################
r2 = requests.post(
    url='https://passport.lagou.com/login/login.json',
    data={
        'isValidate':'true',
        'username':'',
        'password':'',
        'request_form_verifyCode':'',
        'submit':''
    },
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'X-Requested-With':'XMLHttpRequest',
        'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
        'Host':'passport.lagou.com',
        'Origin':'https://passport.lagou.com',
        'Referer':'https://passport.lagou.com/login/login.html',
        'X-Anit-Forge-Code':code,
        'X-Anit-Forge-Token':token
    },
    cookies=all_cookie_dict

)
r2_response_json = r2.json()
r2_cookie_dict = r2.cookies.get_dict()
all_cookie_dict.update(r2_cookie_dict)
# ##################################### 第三步：grant #####################################
r3 = requests.get(
    url='https://passport.lagou.com/grantServiceTicket/grant.html',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'passport.lagou.com',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r3_cookie_dict = r3.cookies.get_dict()
all_cookie_dict.update(r3_cookie_dict)
# ##################################### 第四步：action #####################################
r4 = requests.get(
    url=r3.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r4_cookie_dict = r4.cookies.get_dict()
all_cookie_dict.update(r4_cookie_dict)

# ##################################### 第五步：获取认证信息 #####################################
r5 = requests.get(
    url=r4.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r5_cookie_dict = r5.cookies.get_dict()
all_cookie_dict.update(r5_cookie_dict)

print(r5.headers['Location'])

# ##################################### 第六步：我的邀请 #####################################
r = requests.get(
    url='https://www.lagou.com/mycenter/invitation.html',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
        'Pragma':'no-cache',
    },
    cookies=all_cookie_dict
)
print('wupeiqi' in r.text)

lagou1.py

import re
import requests
all_cookie_dict = {}

# ##################################### 第一步：访问登录页面 #####################################
r1 = requests.get(
    url='https://passport.lagou.com/login/login.html',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36'
    }
)

token =  re.findall("X_Anti_Forge_Token = '(.*)';",r1.text)[0]
code =  re.findall("X_Anti_Forge_Code = '(.*)';",r1.text)[0]
r1_cookie_dict = r1.cookies.get_dict()
all_cookie_dict.update(r1_cookie_dict)

# ##################################### 第二步：去登陆 #####################################
r2 = requests.post(
    url='https://passport.lagou.com/login/login.json',
    data={
        'isValidate':'true',
        'username':'',
        'password':'',
        'request_form_verifyCode':'',
        'submit':''
    },
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'X-Requested-With':'XMLHttpRequest',
        'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
        'Host':'passport.lagou.com',
        'Origin':'https://passport.lagou.com',
        'Referer':'https://passport.lagou.com/login/login.html',
        'X-Anit-Forge-Code':code,
        'X-Anit-Forge-Token':token
    },
    cookies=all_cookie_dict

)
r2_response_json = r2.json()
r2_cookie_dict = r2.cookies.get_dict()
all_cookie_dict.update(r2_cookie_dict)
# ##################################### 第三步：grant #####################################
r3 = requests.get(
    url='https://passport.lagou.com/grantServiceTicket/grant.html',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'passport.lagou.com',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r3_cookie_dict = r3.cookies.get_dict()
all_cookie_dict.update(r3_cookie_dict)
# ##################################### 第四步：action #####################################
r4 = requests.get(
    url=r3.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r4_cookie_dict = r4.cookies.get_dict()
all_cookie_dict.update(r4_cookie_dict)

# ##################################### 第五步：获取认证信息 #####################################
r5 = requests.get(
    url=r4.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r5_cookie_dict = r5.cookies.get_dict()
all_cookie_dict.update(r5_cookie_dict)

print(r5.headers['Location'])

# ##################################### 第六步 #####################################
r6 = requests.get(
    url=r5.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r6_cookie_dict = r6.cookies.get_dict()
all_cookie_dict.update(r6_cookie_dict)

print(r6.headers['Location'])

# ##################################### 第七步 #####################################
r7 = requests.get(
    url=r6.headers['Location'],
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Referer':'https://passport.lagou.com/login/login.html',
        'Host':'www.lagou.com',
        'Upgrade-Insecure-Requests':'',
    },
    cookies=all_cookie_dict,
    allow_redirects=False

)
r7_cookie_dict = r7.cookies.get_dict()
all_cookie_dict.update(r7_cookie_dict)

# ##################################### 第八步：查看个人信息 #####################################
r8 = requests.get(
    url='https://gate.lagou.com/v1/neirong/account/users/0/',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Host':'gate.lagou.com',
        'Pragma':'no-cache',
        'Referer':'https://account.lagou.com/v2/account/userinfo.html',
        'X-L-REQ-HEADER':'{deviceType:1}'
    },
    cookies=all_cookie_dict
)
r8_response_json = r8.json()
# print(r8_response_json)
all_cookie_dict.update(r8.cookies.get_dict())

# ##################################### 第九步：查看个人信息 #####################################

r9 = requests.put(
    url='https://gate.lagou.com/v1/neirong/account/users/0/',
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
        'Host':'gate.lagou.com',
        'Origin':'https://account.lagou.com',
        'Referer':'https://account.lagou.com/v2/account/userinfo.html',
        'X-L-REQ-HEADER':'{deviceType:1}',
        'X-Anit-Forge-Code':r8_response_json.get('submitCode'),
        'X-Anit-Forge-Token':r8_response_json.get('submitToken'),
        'Content-Type':'application/json;charset=UTF-8',
    },
    json={"userName":"wupeiqi999","sex":"MALE","portrait":"images/myresume/default_headpic.png","positionName":"...","introduce":"...."},
    cookies=all_cookie_dict
)

print(r9.text)

lagou2

爬抖音

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    !function (t) {
        if (t.__M = t.__M || {},
            !t.__M.require) {
            var e, n, r = document.getElementsByTagName("head")[0], i = {}, o = {}, a = {}, u = {}, c = {}, s = {},
                l = function (t, n) {
                    if (!(t in u)) {
                        u[t] = !0;
                        var i = document.createElement("script");
                        if (n) {
                            var o = setTimeout(n, e.timeout);
                            i.onerror = function () {
                                clearTimeout(o),
                                    n()
                            }
                            ;
                            var a = function () {
                                clearTimeout(o)
                            };
                            "onload" in i ? i.onload = a : i.onreadystatechange = function () {
                                ("loaded" === this.readyState || "complete" === this.readyState) && a()
                            }
                        }
                        return i.type = "text/javascript",
                            i.src = t,
                            r.appendChild(i),
                            i
                    }
                }, f = function (t, e, n) {
                    var r = i[t] || (i[t] = []);
                    r.push(e);
                    var o, a = c[t] || c[t + ".js"] || {}, u = a.pkg;
                    o = u ? s[u].url || s[u].uri : a.url || a.uri || t,
                        l(o, n && function () {
                            n(t)
                        }
                        )
                };
            n = function (t, e) {
                "function" != typeof e && (e = arguments[2]),
                    t = t.replace(/\.js$/i, ""),
                    o[t] = e;
                var n = i[t];
                if (n) {
                    for (var r = 0, a = n.length; a > r; r++)
                        n[r]();
                    delete i[t]
                }
            }
                ,
                e = function (t) {
                    if (t && t.splice)
                        return e.async.apply(this, arguments);
                    t = e.alias(t);
                    var n = a[t];
                    if (n)
                        return n.exports;
                    var r = o[t];
                    if (!r)
                        throw "[ModJS] Cannot find module `" + t + "`";
                    n = a[t] = {
                        exports: {}
                    };
                    var i = "function" == typeof r ? r.apply(n, [e, n.exports, n]) : r;
                    return i && (n.exports = i),
                    n.exports && !n.exports["default"] && Object.defineProperty && Object.isExtensible(n.exports) && Object.defineProperty(n.exports, "default", {
                        value: n.exports
                    }),
                        n.exports
                }
                ,
                e.async = function (n, r, i) {
                    function a(t) {
                        for (var n, r = 0, h = t.length; h > r; r++) {
                            var p = e.alias(t[r]);
                            p in o ? (n = c[p] || c[p + ".js"],
                            n && "deps" in n && a(n.deps)) : p in s || (s[p] = !0,
                                l++,
                                f(p, u, i),
                                n = c[p] || c[p + ".js"],
                            n && "deps" in n && a(n.deps))
                        }
                    }

                    function u() {
                        if (0 === l--) {
                            for (var i = [], o = 0, a = n.length; a > o; o++)
                                i[o] = e(n[o]);
                            r && r.apply(t, i)
                        }
                    }

                    "string" == typeof n && (n = [n]);
                    var s = {}
                        , l = 0;
                    a(n),
                        u()
                }
                ,
                e.resourceMap = function (t) {
                    var e, n;
                    n = t.res;
                    for (e in n)
                        n.hasOwnProperty(e) && (c[e] = n[e]);
                    n = t.pkg;
                    for (e in n)
                        n.hasOwnProperty(e) && (s[e] = n[e])
                }
                ,
                e.loadJs = function (t) {
                    l(t)
                }
                ,
                e.loadCss = function (t) {
                    if (t.content) {
                        var e = document.createElement("style");
                        e.type = "text/css",
                            e.styleSheet ? e.styleSheet.cssText = t.content : e.innerHTML = t.content,
                            r.appendChild(e)
                    } else if (t.url) {
                        var n = document.createElement("link");
                        n.href = t.url,
                            n.rel = "stylesheet",
                            n.type = "text/css",
                            r.appendChild(n)
                    }
                }
                ,
                e.alias = function (t) {
                    return t.replace(/\.js$/i, "")
                }
                ,
                e.timeout = 5e3,
                t.__M.define = n,
                t.__M.require = e
        }
    }(this)

    __M.define("douyin_falcon:node_modules/byted-acrawler/dist/runtime", function (l, e) {
        Function(function (l) {
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    signature = _bytedAcrawler.sign('58841646784')
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</script>
</body>
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douyin.html

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_bytedAcrawler = this.__M.require("douyin_falcon:node_modules/byted-acrawler/dist/runtime");

signature = _bytedAcrawler.sign(process.argv[2])
console.log(signature);

s1.js

import requests

user_id = '58841646784' # 6556303280

# 获取小姐姐的所有作品
"""
 signature = _bytedAcrawler.sign('用户ID')
 douyin_falcon:node_modules/byted-acrawler/dist/runtime
"""
import subprocess
signature = subprocess.getoutput('node s1.js %s' %user_id)

user_video_list = []

# ############################# 获取个人作品 ##########################
user_video_params = {
    'user_id': str(user_id),
    'count': '21',
    'max_cursor': '0',
    'aid': '1128',
    '_signature': signature,
    'dytk': 'b4dceed99803a04a1c4395ffc81f3dbc' # '114f1984d1917343ccfb14d94e7ce5f5'
}

def get_aweme_list(max_cursor=None):
    if max_cursor:
        user_video_params['max_cursor'] = str(max_cursor)
    res = requests.get(
        url="https://www.douyin.com/aweme/v1/aweme/post/",
        params=user_video_params,
        headers={
            'user-agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
            'x-requested-with':'XMLHttpRequest',
            'referer':'https://www.douyin.com/share/user/58841646784',
        }
    )
    content_json = res.json()
    aweme_list = content_json.get('aweme_list', [])

    user_video_list.extend(aweme_list)
    if content_json.get('has_more') == 1:
        return get_aweme_list(content_json.get('max_cursor'))

get_aweme_list()

# ############################# 获取喜欢作品 ##########################

favor_video_list = []

favor_video_params = {
    'user_id': str(user_id),
    'count': '21',
    'max_cursor': '0',
    'aid': '1128',
    '_signature': signature,
    'dytk': 'b4dceed99803a04a1c4395ffc81f3dbc'
}

def get_favor_list(max_cursor=None):
    if max_cursor:
        favor_video_params['max_cursor'] = str(max_cursor)
    res = requests.get(
        url="https://www.douyin.com/aweme/v1/aweme/favorite/",
        params=favor_video_params,
        headers={
            'user-agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
            'x-requested-with':'XMLHttpRequest',
            'referer':'https://www.douyin.com/share/user/58841646784',
        }
    )
    content_json = res.json()
    aweme_list = content_json.get('aweme_list', [])
    favor_video_list.extend(aweme_list)
    if content_json.get('has_more') == 1:
        return get_favor_list(content_json.get('max_cursor'))

get_favor_list()

# ############################# 视频下载 ##########################
for item in user_video_list:
    video_id = item['video']['play_addr']['uri']

    video = requests.get(
        url='https://aweme.snssdk.com/aweme/v1/playwm/',
        params={
            'video_id':video_id
        },
        headers={
            'user-agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
            'x-requested-with': 'XMLHttpRequest',
            'referer': 'https://www.douyin.com/share/user/58841646784',
        },
        stream=True
    )
    file_name = video_id + '.mp4'
    with open(file_name,'wb') as f:
        for line in video.iter_content():
            f.write(line)

for item in favor_video_list:
    video_id = item['video']['play_addr']['uri']

    video = requests.get(
        url='https://aweme.snssdk.com/aweme/v1/playwm/',
        params={
            'video_id':video_id
        },
        headers={
            'user-agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36',
            'x-requested-with': 'XMLHttpRequest',
            'referer': 'https://www.douyin.com/share/user/58841646784',
        },
        stream=True
    )
    file_name = video_id + '.mp4'
    with open(file_name, 'wb') as f:
        for line in video.iter_content():
            f.write(line)

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