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78 lines of Python code teach you to retrieve wechat withdrawal messages

編輯:Python

Preface

I came to the library early this morning , Think about a simple and powerful tool of wechat , There are still a lot of news on wechat recently , such as : Applet time axis etc. , This is not the point , The point is to see one based on python Wechat open source library :itchat, Played all day .Python Once said to me :" There is not much time , Hasten to use Python".

So let's use itchat Make such a program :undefined The information withdrawn from private chat can be collected and sent to the file assistant of personal wechat , Include :undefined(1) who : Who sent undefined(2) when : When was the message sent undefined(3) what: What information undefined(4) which: What kind of information , Include : Text 、 picture 、 voice 、 video 、 Share 、 Location 、 The attachment undefined...


Code implementation

# -*-encoding:utf-8-*-
import os
import re
import shutil
import time
import itchat
from itchat.content import *
# explain : There is text that can be withdrawn 、 voice 、 video 、 picture 、 Location 、 Business card 、 Share 、 The attachment
# {msg_id:(msg_from,msg_to,msg_time,msg_time_rec,msg_type,msg_content,msg_share_url)}
msg_dict = {}
# File storage temporary directory
rev_tmp_dir = "/home/alic/RevDir/"
if not os.path.exists(rev_tmp_dir): os.mkdir(rev_tmp_dir)
# There's a problem with the expression | Receive information and accept note Of msg_id atypism Coincidence solution
face_bug = None
# Store the received message in the dictionary , When a new message is received, the time-out message in the dictionary is cleaned up | Do not accept information without withdrawal function
# [TEXT, PICTURE, MAP, CARD, SHARING, RECORDING, ATTACHMENT, VIDEO, FRIENDS, NOTE]
@itchat.msg_register([TEXT, PICTURE, MAP, CARD, SHARING, RECORDING, ATTACHMENT, VIDEO])
def handler_receive_msg(msg):
global face_bug
# Get the local timestamp and format the local timestamp e: 2017-04-21 21:30:08
msg_time_rec = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
# news ID
msg_id = msg['MsgId']
# Time of news
msg_time = msg['CreateTime']
# Sender's nickname | It can also be used here RemarkName remarks But yourself or someone without a note None
msg_from = (itchat.search_friends(userName=msg['FromUserName']))["NickName"]
# The message content
msg_content = None
# Shared Links
msg_share_url = None
if msg['Type'] == 'Text' \
or msg['Type'] == 'Friends':
msg_content = msg['Text']
elif msg['Type'] == 'Recording' \
or msg['Type'] == 'Attachment' \
or msg['Type'] == 'Video' \
or msg['Type'] == 'Picture':
msg_content = r"" + msg['FileName']
# Save the file
msg['Text'](rev_tmp_dir + msg['FileName'])
elif msg['Type'] == 'Card':
msg_content = msg['RecommendInfo']['NickName'] + r" Business card of "
elif msg['Type'] == 'Map':
x, y, location = re.search(
"<location x=\"(.*?)\" y=\"(.*?)\".*label=\"(.*?)\".*", msg['OriContent']).group(1, 2, 3)
if location is None:
msg_content = r" latitude ->" + x.__str__() + " longitude ->" + y.__str__()
else:
msg_content = r"" + location
elif msg['Type'] == 'Sharing':
msg_content = msg['Text']
msg_share_url = msg['Url']
face_bug = msg_content
# Update Dictionary
msg_dict.update(
{
msg_id: {
"msg_from": msg_from, "msg_time": msg_time, "msg_time_rec": msg_time_rec,
"msg_type": msg["Type"],
"msg_content": msg_content, "msg_share_url": msg_share_url
}
}
)
# received note Notification messages , Determine whether to withdraw and operate accordingly
@itchat.msg_register([NOTE])
def send_msg_helper(msg):
global face_bug
if re.search(r"\<\!\[CDATA\[.* Recalled a message \]\]\>", msg['Content']) is not None:
# Get the message id
old_msg_id = re.search("\<msgid\>(.*?)\<\/msgid\>", msg['Content']).group(1)
old_msg = msg_dict.get(old_msg_id, {})
if len(old_msg_id) < 11:
itchat.send_file(rev_tmp_dir + face_bug, toUserName='filehelper')
os.remove(rev_tmp_dir + face_bug)
else:
msg_body = " Tell you a secret ~" + "\n" \
+ old_msg.get('msg_from') + " Withdrawn " + old_msg.get("msg_type") + " news " + "\n" \
+ old_msg.get('msg_time_rec') + "\n" \
+ " Withdraw what ⇣" + "\n" \
+ r"" + old_msg.get('msg_content')
# If it's sharing, there are links
if old_msg['msg_type'] == "Sharing": msg_body += "\n This is the link * " + old_msg.get('msg_share_url')
# Send the recall message to the file assistant
itchat.send(msg_body, toUserName='filehelper')
# If you have documents, send them back
if old_msg["msg_type"] == "Picture" \
or old_msg["msg_type"] == "Recording" \
or old_msg["msg_type"] == "Video" \
or old_msg["msg_type"] == "Attachment":
file = '@[email protected]%s' % (rev_tmp_dir + old_msg['msg_content'])
itchat.send(msg=file, toUserName='filehelper')
os.remove(rev_tmp_dir + old_msg['msg_content'])
# Delete dictionary old messages
msg_dict.pop(old_msg_id)
if __name__ == '__main__':
itchat.auto_login(hotReload=True,enableCmdQR=2)
itchat.run()

The program can be run directly at the terminal , After scanning the code on the terminal, you can log in successfully , It can also be packaged in window System operation ( Pay attention to modifying the path , Relative path is recommended ).

* ~ python wx.py
Getting uuid of QR code.
Downloading QR code.
Please scan the QR code to log in.
Please press confirm on your phone.
Loading the contact, this may take a little while.
�[3;J
Login successfully as AlicFeng
Start auto replying.

design sketch


tchat

It's all about programming logic , I'd better record itchat Wechat is an open source library .

  • brief introduction undefineditchat Is an open source wechat personal number interface , Use python Calling wechat becomes very simple . Simple is to use itchat Code can build an instant messaging system based on wechat , The better embodiment is that it is convenient to expand more communication functions of personal wechat on other platforms .
  • install
pip3 install itchat
  • itchat - Helloworldundefined Just three lines of code send a message to the file assistant
import itchat
itchat.auto_login(hotReload=True)
itchat.send('Hello AlicFeng', toUserName='filehelper')
  • View clients

If you find something wrong or don't understand , In the comments section , Let's talk !

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