一、基础设计

实验环境 Python3+jupyter
一、程序框架

二、工具层 utils.py
1. 单例函数

def singleton(cls):
    instance = cls()
    instance.__call__ = lambda: instance
    return instance

三、网络层 jquery.py
要求：
1. 实现get、post请求
2. 添加cookie和headers
3. 处理http状态码异常
4. 判断返回数据是json 还是str
5. 每个用户的cookies独立
6. 实现cookie文件和cookie的转化

代码：

import json,requests
import  http.cookiejar as cookielib
from utils import singleton

class session(requests.Session):
    def __init__(self,headers={},cookie_file=None):
        requests.Session.__init__(self)
        self.cookies = cookielib.LWPCookieJar(filename=cookie_file)
        try:self.cookies.load(ignore_discard=True)
        except:print("failed load cookie_file")
        self.headers=headers
        self.auth = ('user', 'pass')
        self._type='str'
        
    def save(self):
        self.cookies.save()
@singleton
class http():
    def get(self,s,url,data=None):
        r=s.get(url,params=data)
        self.error(r.status_code)
        return self.res_data(r,s._type)
        
    def post(self,s,url,data):
        r=s.post(url,data=data)
        self.error(r.status_code)
        return self.res_data(r,s._type)
        
    def error(self,code):
        if code==200:return
        elif code==403:raise RuntimeError('403 - Forbidden')
        elif code==404:raise RuntimeError('404 -  Not Found')
        
    def res_data(self,r,_type):
        if _type=='json':return json.loads(r.content)
        return r.content

四、代码测试

headers={
    'Host': 'api.live.bilibili.com',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0',
    'Accept': 'application/json, text/plain, */*',
    'Accept-Language': 'zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
    'Accept-Encoding': 'gzip, deflate, br',
    'Referer': 'https://live.bilibili.com/',
    'Origin': 'https://live.bilibili.com',
    'Connection': 'keep-alive'
    }
s=session(headers,'cookie.txt')
s._type='json'
url='https://api.live.bilibili.com/room/v1/Room/playUrl'
data={
    'cid':7603080,
    'quality':0,
    'platform': 'web'
}
r=http.get(s,url,data)
for d in r['data']['durl']:print(d['url'])

failedload cookie_file
[https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562](https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562)
[https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562](https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562)
[https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562](https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562)
[https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562](https://qn.live-play.acgvideo.com/live-qn/165966/live_267605959_3403844.flv?wsSecret=06028657c2cc08ff816df9d9d505a5a3&wsTime=1538217562)