前言

browser_cookie3 第三方模块

browser_cookie3是browser_cookie模块的分支，它可以获取到电脑上的浏览器cookies，本次程序会使用到此模块。

一、HTML藏玄机

在小破站的任意一个视频html中，head标签下都有一个script。里面有window.__playinfo__的json数据

通过JSON在线解析及格式化验证 - JSON.cn 进行解析，我看到了以下内容

天助我也！我想要的视频链接不就是在这里吗？

二、编写代码

1.引入库

代码如下：

# 处理windows.__playinfo__中的json
import json # 后面使用命令行获取链接
import sys
import os
import getopt# 用于请求和解析链接
import requests
from fileid.fileid import Newid # 生成随机文件名
from tqdm import tqdm
from bs4 import BeautifulSoup# 自定义的功能文件
import getHeaders
import bvid_aid

2.编写主类

代码如下：

PATH: str = os.path.split(__file__)[0]
COOKIE: bool = False
OUTPUTPATH: str = PATH
PAGE: list = [None
]class GBV:def __init__(self, _url: str, _browser: int, _params) -> None:self.url = _urlself.params = _paramsself.headers = getHeaders.get(_browser)self.title = Noneself.audio = Noneself.video = Noneself.tqdm = tqdm(range(100))self.tqdm.set_description(f"Url is: {self.url}")def move(self, file: str, toPath: str) -> str:if os.path.isfile(file):rfp = open(file, "rb")else:return Noneif os.path.isfile(toPath) == False:if os.path.isdir(toPath):toPath = os.path.join(toPath, self.title+".mp4")else:return Nonetry:with open(toPath, "wb") as wfp:wfp.write(rfp.read())except OSError:toPath = os.path.join(OUTPUTPATH, Newid(10).newfileid()+".mp4")with open(toPath, "wb") as wfp:wfp.write(rfp.read())rfp.close()os.remove(file)return toPathdef GetPlayinfoData(self) -> tuple:with requests.get(self.url, headers=self.headers, params=self.params) as get:self.title = BeautifulSoup(get.text, "lxml").find_all("h1")[0].attrs['title']data = BeautifulSoup(get.text, "lxml").find_all("script")[2].text.split("__playinfo__=")[-1]data = json.loads(data)self.audio = data['data']['dash']['audio'][0]['baseUrl']self.video = data['data']['dash']['video'][0]['baseUrl']return (self.title, self.audio, self.video)def save(self) -> None:randomStr = os.path.join(os.getcwd(), Newid(5).newfileid()+".mp4")outputJoin = os.path.join(os.getcwd(), "output.mp4")tempMp4Join = os.path.join(os.getcwd(), "temp.mp4")tempMp3Join = os.path.join(os.getcwd(), "temp.mp3")ffempgJoin = os.path.join(PATH, "ffmpeg.exe")with requests.get(self.audio, headers=self.headers) as AudioGet:with open(tempMp3Join, "wb") as faudio:self.tqdm.set_description("保存音频文件....")faudio.write(AudioGet.content)faudio.close()self.tqdm.update(50)with requests.get(self.video, headers=self.headers) as VideoGet:with open(tempMp4Join, "wb") as fvideo:self.tqdm.set_description("保存视频文件...")fvideo.write(VideoGet.content)fvideo.close()os.popen(fr"{ffempgJoin} -y -i {tempMp4Join} {outputJoin}").read()os.popen(fr"{ffempgJoin} -y -i {outputJoin} -i {tempMp3Join} -c:v copy -c:a copy -bsf:a aac_adtstoasc {randomStr}",).read()moveRturn = self.move(f"{randomStr}", OUTPUTPATH)self.tqdm.update(50)self.tqdm.close()if COOKIE:with open(f"{PATH}/.cookie", "w+", encoding="utf-8") as wfp:wfp.write(COOKIE)print("\n删除缓存...")os.remove(tempMp4Join)os.remove(tempMp3Join)os.remove(outputJoin)print(f"\nOk！视频保存文件为：{moveRturn}")def run(self, bvid: str) -> None:global OUTPUTPATHurl = "https://api.bilibili.com/x/web-interface/wbi/view/detail"params = {"bvid": bvid,"aid": bvid_aid.getAID(bvid),}videos = {}with requests.get(url, params=params, headers=self.headers) as get:page_all = 1for i in get.json()['data']['View']['pages']:videos[i['page']] = i['part']page_all += 1if OUTPUTPATH == os.path.split(__file__)[0]:try:OUTPUTPATH = os.path.join(os.getcwd(),get.json()['data']['View']['title'])if os.path.isdir(OUTPUTPATH) == False:os.mkdir(OUTPUTPATH)except OSError as oserror:print(f"{oserror}\n程序将随机生成文件夹名。")OUTPUTPATH = os.path.join(os.getcwd(),Newid(10).newfileid())if os.path.isdir(OUTPUTPATH) == False:os.mkdir(OUTPUTPATH)if PAGE[0] == "ALL":for key, value in videos.items():self.params = {"p": i}self.GetPlayinfoData()self.title = valueself.save()elif (type(PAGE) == list) and (PAGE[0] != None):for i in PAGE:if i <= int(page_all):self.params = {"p": i}self.GetPlayinfoData()self.title = f"{i}."+videos[i]self.save()elif PAGE[0] == None:self.GetPlayinfoData()self.save()

1.run函数用于读取用户输入的数据并处理，再启动相应函数

2.GetPlayinfoData就是用于处理window__playinfo__对象中的数据的

2.save函数用于下载音频与视频，再使用ffmpeg合并后保存文件。

3. 自动获取cookies值和生成headers

GetBilibiliCookies.py

import browser_cookie3class GetBrowser_cookies:def __init__(self, browser: int = 0) -> None:self.Bkeys = ["buvid4","b_nut","b_lsid","buvid3","i-wanna-go-back","_uuid","FEED_LIVE_VERSION","home_feed_column","browser_resolution","buvid_fp","header_theme_version","PVID","SESSDATA","bili_jct","DedeUserID","DedeUserID__ckMd5","b_ut","CURRENT_FNVAL","sid","rpdid"]try:if browser == 0:self.browserCookes = browser_cookie3.edge()if browser == 1:self.browserCookes = browser_cookie3.chrome()if browser == 2:self.browserCookes = browser_cookie3.firefox()except browser_cookie3.BrowserCookieError:self.browserCookes = Noneexcept PermissionError as PE:self.browserCookes = Noneraise PermissionError(f"{PE}\n可能是浏览器引起的问题，可以尝试重装浏览器")def get(self) -> str:cookies = ""for i in self.browserCookes:if i.name in self.Bkeys:cookies += f"{i.name}={i.value}; "return cookiesdef getValue(self, key: str) -> str:for i in self.browserCookes:if key == i.name:return i.valuereturn ""

为什么要获取cookies值？当然没有cookie值也行，但是下载下来的文件一般都是低画质的。但是你登录了账户在浏览器，就可以通过浏览器记录的cookies来提交服务器。前提是你在浏览器登录了bilibili账户。

getHeaders.py

此处为生成headers的程序

import GetBilibiliCookiesUSER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36"
REFERER = "https://www.bilibili.com/"def get(browser: int = 0) -> dict:return {"User-Agent":USER_AGENT,"cookie": GetBilibiliCookies.GetBrowser_cookies(browser).get(),"Referer": REFERER}

bvid_aid.py

import requestsimport getHeadersdef getAID(bvid: str) -> int:aid = Noneurl = f'https://api.bilibili.com/x/web-interface/view?bvid={bvid}'with requests.get(url, headers=getHeaders.get()) as get:if get.status_code == 200:aid = get.json()['data']['aid']return aid

4.获取命令行参数

代码如下：

def main(_url: str, _browser: int, bvid: str, params: dict) -> None:gbv = GBV(_url, _browser, params)gbv.run(bvid)def help() -> None:print("""#########################################################################   Get Bilibili Video (gbv)#   Author: PYmili#   Email: mc2005wj@163.com########################################################################Command:--cookie or -c [Url Cookies]--input_url or -i [Video URL]--browser or -b [edge(default), chrome, firefox]--output or -o [Output file or path]--page or -p [start-end / all] Select an array of videos to download""")if __name__ == '__main__':URL = NoneBROWSER = 0BVID = NonePARAMS = {}options, argv = getopt.getopt(sys.argv[1:], "i:c:b:o:p:",["--input_url=", "--cookie=", "--browser=", "--output=", "--page="])for key, value in options:if key in ["-i", "--input_url"]:splitValue = value.split("video")[-1]splitValue = splitValue.split("/", 1)[-1].split("/", 1)URL = valueBVID = splitValue[0]if splitValue[-1]:for i in splitValue[-1][1:].split("&"):try:PARAMS[i.split("=")[0]] = eval(i.split('=')[-1])except SyntaxError:PARAMS[i.split("=")[0]] = str(i.split('=')[-1])if key in ["-c", "--copkie"]:COOKIE = valueif key in ["-b", "--browser"]:if value == "chrome":BROWSER = 1elif value == "firefox":BROWSER = 2if key in ["-o", "--output"]:if os.path.isdir(value):OUTPUTPATH = valueelse:print(f"没有：{value} 这个路径。")if key in ["-p", "--page"]:if "-" in value:start, end = value.split("-")PAGE = [i for i in range(int(start), int(end)+1)]elif value in ["all", "ALL", "All"]:PAGE[0] = "ALL"else:PAGE.append(int(value))if (URL != None) and (BVID != None):main(URL, BROWSER, BVID, PARAMS)else:help()

这就是获取终端输入的传输来运行程序。