1、基礎設計

實驗環境 Python3+jupyter
1、程序框架

2、工具層 utils.py
1. 單例函數

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

3、網絡層 jquery.py
要求：
1. 實現get、post請求
2. 添加cookie和headers
3. 處理http狀態碼異常
4. 判斷返回數據是json 仍是str
5. 每一個用戶的cookies獨立
6. 實現cookie文件和cookie的轉化

代碼：

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

4、代碼測試

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)