python接口自动化3-自动发帖（session）【转载】

本篇转自博客：上海-悠悠

原文地址：http://www.cnblogs.com/yoyoketang/tag/python%E6%8E%A5%E5%8F%A3%E8%87%AA%E5%8A%A8%E5%8C%96/

前言

上一篇模拟登录博客园，但这只是第一步，一般登录后，还会有其它的操作，如发帖，评论等，这时候如何保持会话呢？

（敲黑板！！！由于博客园最近登录机制变了，登录全部走cookie登录）

一、session简介

1.查看帮助文档,贴了一部分，后面省略了

>>import requests
>>help(requests.session())

class Session(SessionRedirectMixin)
 |  A Requests session.
 |  
 |  Provides cookie persistence, connection-pooling, and configuration.
 |  
 |  Basic Usage::
 |  
 |    >>> import requests
 |    >>> s = requests.Session()
 |    >>> s.get('http://httpbin.org/get')
 |    <Response [200]>
 |  
 |  Or as a context manager::
 |  
 |    >>> with requests.Session() as s:
 |    >>>     s.get('http://httpbin.org/get')
 |    <Response [200]>

二、使用session登录

1.使用session登录只需在上一篇基础上稍做修改

# coding:utf-8
import requests
url = "https://passport.cnblogs.com/user/signin"

headers = {
                  头部信息已省略

}
payload = {"input1":"xxx",
                "input2":"xxx",
                "remember":True}

# r = requests.post(url, json=payload, headers=headers,verify=False)

# 修改后如下
s = requests.session()
r = s.post(url, json=payload, headers=headers,verify=False)
print r.json()

三、保存编辑

1.先打开我的随笔，手动输入内容后，打开fiddler抓包

2.把body的参数内容写成字典格式，有几个空的参数不是必填的，可以去掉

body = {"__VIEWSTATE": "",
        "__VIEWSTATEGENERATOR":"FE27D343",
        "Editor$Edit$txbTitle":"这是我的标题：上海-悠悠",
        "Editor$Edit$EditorBody":"<p>这里是中文内容：http://www.cnblogs.com/yoyoketang/</p>",
        "Editor$Edit$Advanced$ckbPublished":"on",
        "Editor$Edit$Advanced$chkDisplayHomePage":"on",
        "Editor$Edit$Advanced$chkComments":"on",
        "Editor$Edit$Advanced$chkMainSyndication":"on",
        "Editor$Edit$lkbDraft":"存为草稿",
         }

3.用上面的session继续发送post请求

4.执行后，查看我的草稿箱就多了一条新增的了

四、参考代码

# coding:utf-8
import requests

# 先打开登录首页，获取部分cookie
url = "https://passport.cnblogs.com/user/signin"
headers = {
            "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:44.0) Gecko/20100101 Firefox/44.0"
           }  # get方法其它加个ser-Agent就可以了

s = requests.session()
r = s.get(url, headers=headers,verify=False)
print s.cookies

# 添加登录需要的两个cookie
c = requests.cookies.RequestsCookieJar()

c.set('.CNBlogsCookie', '这里是抓到的')  # 填上面抓包内容
c.set('.Cnblogs.AspNetCore.Cookies','这里是抓到的')  # 填上面抓包内容
c.set('AlwaysCreateItemsAsActive',"True")
c.set('AdminCookieAlwaysExpandAdvanced',"True")
s.cookies.update(c)
print s.cookies

# 登录成功后保存编辑内容
r1 = s.get("https://i.cnblogs.com/EditPosts.aspx?opt=1", headers=headers, verify=False)

# 保存草稿箱
url2= "https://i.cnblogs.com/EditPosts.aspx?opt=1"
body = {"__VIEWSTATE": "",
        "__VIEWSTATEGENERATOR":"FE27D343",
        "Editor$Edit$txbTitle":"这是3111",
        "Editor$Edit$EditorBody":"<p>这里111：http://www.cnblogs.com/yoyoketang/</p>",
        "Editor$Edit$Advanced$ckbPublished":"on",
        "Editor$Edit$Advanced$chkDisplayHomePage":"on",
        "Editor$Edit$Advanced$chkComments":"on",
        "Editor$Edit$Advanced$chkMainSyndication":"on",
        "Editor$Edit$Advanced$txbEntryName":"",
        "Editor$Edit$Advanced$txbExcerpt":"",
        "Editor$Edit$Advanced$tbEnryPassword":"",
        "Editor$Edit$lkbDraft":"存为草稿",
         }
r2 = s.post(url2, data=body, verify=False)
print r.content