request - cookie操作(二)

from urllib import request,parse
from http.cookiejar import CookieJar

headers = {
        "User-Agent":"Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36"
    }

def get_opener():
    # 1.登錄
    # 1.1 創建一個cookiejar對象
    cookiejar = CookieJar()
    # 1.2 使用cookiejar創建一個HTTPCookieProcessor對象
    handler = request.HTTPCookieProcessor(cookiejar)
    # 1.3 使用上一步的handler創建一個opener
    opener = request.build_opener(handler)
    return opener

def login_renern(opener):
    # 1.4 使用opener發送登錄的請求(輸入賬號和密碼)
    data = {
        "email":"xxxx",
        "password":"xxxx"
    }
    login_url = "http://www.renren.com/PLogin.do"
    req = request.Request(login_url,data=parse.urlencode(data).encode("utf-8"),headers=headers)
    opener.open(req)

def visit_profile(opener):
    # 2.訪問主頁
    pro_url = "http://www.renren.com/452057374/profile?ref=page"
    #獲取個人主頁的頁面的時候，不要新建一個opener
    #而應該使用之前的那個opener，因為之前的那個opener已經包含了登錄所需要的cookie信息
    resp = opener.open(pro_url)
    with open("renren.html","w",encoding="utf-8") as file:
        file.write(resp.read().decode("utf-8"))

if __name__ == '__main__':
    opener = get_opener()
    login_renern(opener)
    visit_profile(opener)