介绍

微信自动回复其实主要就是登录，接收消息，回复消息三个功能，微信没有提供方便的API，但是可以分析网页版微信通信原理，通过模拟浏览器来实现需要的功能。下面将给出微信网页版通信原理以及Python具体实现代码。

分析

-获取uuid:

-获取二维码：

-监听是否扫描二维码以及是否确认登录：

GET https://login.wx.qq.com/cgi-bin/mmwebwx-bin/login?loginicon=true&uuid=4YyQFP2Daw==

Param uuid 同上

Response

-获取后续访问所需要的key等

GET https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxnewloginpage?ticket=ARxD7GSdBYtNHOxhK0BF0ek-@qrticket_0&uuid=4YyQFP2Daw==

Param URL为上次返回的redirect_uri 参数已经带上了

Response

-初始化

POST https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxinit?r=-485039295&lang=zh_CN&pass_ticket=OLxGHwqL%2BWNArxvXaqjDy06qzdrSojq6DJwiBF19sgw2CibZSJBv1WwOXAfKnLIg

Param r ( - + 9位随机数）,pass_ticket,{"BaseRequest": {"Uin": "1564527827", "Skey": "@crypt_828c27e0_e98d62f6954235194f2b1252943f25ad", "DeviceID": "

Response 返回json,包含用户自己的信息，最近联系人，订阅的公众号消息等等；这里只需要关注 UserName=@821c154488cdddbfb04141aa8f681174305d21d67a24cfd6eca3e77a152e52ff 每位用户都有一个UserName，但是每次登陆UserName都是重新分配的,

-状态检查

GET https://wx.qq.com/cgi-bin/mmwebwx-bin/synccheck?r=1486743215000&skey=@crypt_828c27e0_e98d62f6954235194f2b1252943f25ad&sid=0zEvAdWKm9Z

Param r(时间戳),skey,sid,uin,deviceid,synckey(将SyncKey中的多组key 以 key1_value1|key2_value2 的形式拼接成字符串如：3_660530485|1000_1486721341),_ (时间戳)

Response window.synccheck={retcode:"0",selector:"2"} retcode=0 正常 ，1101 退出登录，1102 会话异常 ， selector= 0 无变化 2or6 有消息

-接收消息

代码

# -*- coding:utf-8 -*-
#author:fengw
import urllib,urllib2,cStringIO,re,sys,os,cookielib,ssl,requests,time,json,random,threading,warnings
from PIL import Image
from matplotlib import pyplot as plt
import xml.etree.cElementTree as et
reload(sys)
sys.setdefaultencoding('utf-8')
warnings.filterwarnings("ignore")
def get_device_id():
return 'e'+str(random.random()*10000000000)[0:10]+str(random.random()*100000)[0:5]
def qrcode_img():
response=urllib2.urlopen(QRCODE_KEY_URL).read()
p=re.compile(r'(d+(.d+)?)')
code=p.findall(response)[0][0]
if
code =='200':
p=re.compile(r'"(.*)"')
qrcode_key=p.findall(response)[0]
qrcode_img_url=QRCODE_IMG_BASE_URL+qrcode_key
global CHECK_LOGIN_STATUS_BASE_URL
CHECK_LOGIN_STATUS_BASE_URL=CHECK_LOGIN_STATUS_BASE_URL+qrcode_key
qrcode_img=Image.open(cStringIO.StringIO(urllib2.urlopen(qrcode_img_url).read()))
plt.ion()
plt.figure()
plt.imshow(qrcode_img)
plt.figure()
plt.close(2)
else :
print 'sorry,request qrcode failed...'
time.sleep(2)
os._exit(0)
def listen_login():
run=True
times=0
msg='please scan the qrcode'
while run:
times+=1
print msg
response=urllib2.urlopen(CHECK_LOGIN_STATUS_BASE_URL).read()
p=re.compile(r'(d+(.d+)?)')
code=p.findall(response)[0][0]
if
code=='201':
msg= 'please login...'
plt.close()
if
code=='200':
run=False
plt.close()
print
'login sucess,running....'
p=re.compile(r'"(.*)"')
redirect_url=p.findall(response)[0]
response=conn.get(url=redirect_url,allow_redirects=False,verify=False)
msg=response.text
global ret,message,skey,wxsid,wxuin,pass_ticket,isgrayscale
xml=et.fromstring(msg)
ret=xml[0].text
message=xml[1].text
skey=xml[2].text
wxsid=xml[3].text
wxuin=xml[4].text
pass_ticket=xml[5].text
isgrayscale=xml[6].text
if
times==20:
run=False
def update_synckey(msg):
global synckey,syncheck_key
synckey=str(msg['SyncKey']).replace("u'","'")
for k_v in msg['SyncKey']['List']:
syncheck_key+='|'+str(k_v['Key'])+'_'+str(k_v['Val'])
syncheck_key=syncheck_key[1:]
def
wx_init():
url='https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxinit?r=-485039295&lang=zh_CN&pass_ticket='+pass_ticket
data={'BaseRequest':{'DeviceID':'%s'%get_device_id(),'Sid':'%s'%wxsid,'Skey':'%s'%skey,'Uin':'%s'%wxuin}}
res=conn.post(url=url,headers=headers,data=json.dumps(data),verify=False)
response=res.text
msg=json.loads(response)
global user
user=msg['User']['UserName']
update_synckey(msg)
def get_contact_list():
base_url='https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxgetcontact?lang=zh_CN&seq=0'
base_url+='&pass_ticket='+pass_ticket+'&r='+str(int(time.time())*1000)+'&skey='+skey
response=urllib2.urlopen(base_url).read()
data=json.loads(response)
f=open(r'd:/linklist.txt','w')
for friend in data['MemberList']:
msg=friend['NickName']+","+friend['RemarkName']+"n"
f.write(msg.encode('utf-8'))
f.close()
def get_auto_reply(send_msg):
url='http://www.niurenqushi.com/api/simsimi/'
data={'txt':'%s'%send_msg}
res=conn.post(url=url,data=data)
res.encoding='utf-8'
return
json.loads(res.text,'')['text']
def reply_msg(content,touser):
url='https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsg?lang=zh_CN&pass_ticket='+pass_ticket
#touser='filehelper'
ClientMsgId=str(int(time.time()))+str(random.random()*10000000)[0:7]
print 'recive msg :',content
sendmsg=get_auto_reply(content)
data={'BaseRequest':{'Uin':'%s'%wxuin,'Sid':'%s'%wxsid,'Skey':'%s'%skey,'DeviceID':'%s'%get_device_id()},'Msg':{'ClientMsgId':'%s'%ClientMsgId,'Content':'%s'%sendmsg.encode('utf-8'),'FromUserName':'%s'%user,'LocalID':ClientMsgId,'ToUserName':'%s'%touser,'Type':'1'},'Scene':'0'}

	data=json.dumps(data,ensure_ascii=False)
res=conn.post(url=url,headers=headers,data=data.encode('utf-8'),verify=False)
print 'reply:',sendmsg
def recive_msg():
base_url='https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsync'
base_url+='?sid='+wxsid+'&skey='+skey+'&lang='+'zh_CN'+'&pass_ticket='+pass_ticket
while True:
try:
rr='-'+str(random.random()*1000000000)[0:9]
data={'BaseRequest':{'Uin':'%s'%wxuin,'Sid':'%s'%wxsid,'Skey':'%s'%skey,'DeviceID':'%s'%get_device_id()},'SyncKey':eval(synckey),'rr':'%s'%rr}
res=conn.post(url=base_url,headers=headers,data=json.dumps(data),verify=False)
res.encoding='utf-8'
response=res.text
if response==None:
continue
data=json.loads(response)
update_synckey(data)
for msg in data['AddMsgList']:
content=msg['Content']
fromuser=msg['FromUserName']
if fromuser==user:
continue
if content[0:4]=='<':
continue
#print 'recived msg:',content.decode('unicode_escape'),'from user :',fromuser

threading.Thread(target=reply_msg,args=(content,fromuser)).start()
time.sleep(2)
except Exception
as e :
pass
def sync_check():
listen=True
base_url='https://webpush.wx.qq.com/cgi-bin/mmwebwx-bin/synccheck'
base_url+='?r='+str(int(time.time())*1000)+'&skey='+skey+'&sid='+wxsid+'&uin='+wxuin+'&deviceid='+get_device_id()+'&synckey='+syncheck_key+'&_='+str(int(time.time())*1000-3000000)
request = urllib2.Request(url=base_url, headers=headers)
while listen:
try:
res=conn.get(url=base_url,headers=headers,verify=False)
response=res.text
p=re.compile(r'(d+(.d+)?)')
retcode=p.findall(response)[0][0]
if retcode=='1101' or retcode=='1102':
print 'login out ...'
listen=False
os._exit(0)
time.sleep(2)
except Exception:
pass
if __name__ == '__main__':
ssl._create_default_https_context = ssl._create_unverified_context
QRCODE_KEY_URL='https://login.wx.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Fwx.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN&_='+str(int(time.time())*1000)
QRCODE_IMG_BASE_URL='https://login.weixin.qq.com/qrcode/'
CHECK_LOGIN_STATUS_BASE_URL='https://login.wx.qq.com/cgi-bin/mmwebwx-bin/login?loginicon=true&uuid='
ret,message,skey,wxsid,wxuin,pass_ticket,isgrayscale='','','','','','',''
synckey,user='',''
syncheck_key=''
cookie=cookielib.CookieJar()
handler=urllib2.HTTPCookieProcessor(cookie)
debug_h=urllib2.HTTPSHandler(debuglevel=0)
opener=urllib2.build_opener(handler,debug_h)
urllib2.install_opener(opener)
conn=requests.session()
headers = {
'Host': 'wx.qq.com',
'Connection': 'keep-alive',
'Accept': 'application/json, text/plain, */*',
'Origin': 'https://wx.qq.com',
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0',
'Content-Type': 'application/json;',
'Accept-Encoding': 'gzip, deflate, br',
'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3'
}
#获取微信二维码并显示

qrcode_img()
#监听用户扫描二维码和登录动作
listen_login()
#微信初始化
wx_init()
#开启子线程监听登录状态
check_status_task=threading.Thread(target=sync_check)
check_status_task.start()
#get_contact_list()
#主线程监听消息
recive_msg()

_{第一次写，请无视排版}肯定是编辑器的问题，怎么感觉比word还难

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