The specific code is described below:
#coding=utf-8
import itchat
from import TEXT
from import *
import sys
import time
import re
import os
msg_information = {}
face_bug=None #For emoji content
# TEXT here means if someone sends a text message ()
# TEXT Text Text content (text message)
# MAP Map Location Text (Location Sharing)
# CARD Business Card Referrer's Dictionary (Referrer's Business Card)
# SHARING Share Name of the share (music or article shared, etc.)
# PICTURE How to download images/expressions
# RECORDING Voice Download Method
# ATTACHMENT Attachment Download Method
# VIDEO How to Download
# FRIENDS Friends Invitation Required parameters to add friends
# SYSTEM System Message A list consisting of the UserName of the user or group chat that updated the content.
# NOTE Notification Notification text (message retraction, etc.), then the following method is called
# where isFriendChat means between friends, isGroupChat means group chat, isMapChat means public
@itchat.msg_register([TEXT,PICTURE,FRIENDS,CARD,MAP,SHARING,RECORDING,ATTACHMENT,VIDEO],isFriendChat=True,isGroupChat=True)
def receive_msg(msg):
global face_bug
# print("The message is: " + str(msg))
msg_time_rec = ("%Y-%m-%d %H:%M:%S", ()) #Time to receive a message
# ActualNickName : Actual NickName This value is only available in group messages (msg).
if 'ActualNickName' in msg:
from_user = msg['ActualUserName'] #Unique identifier of the sender of the group message, the user.
msg_from = msg['ActualNickName']# Nicknames in the sender's group
friends = itchat.get_friends(update=True)# Get all your friends
for f in friends:
if from_user == f['UserName']: #If a group message is sent by a friend
if f['RemarkName']: # Prioritize friends' note names, or nicknames if they don't have them
msg_from = f['RemarkName']
else:
msg_from = f['NickName']
break
groups = itchat.get_chatrooms(update=True)# Get all the groups
for g in groups:
if msg['FromUserName'] == g['UserName']:# Match the group message with the FromUserName of the group message.
group_name = g['NickName']
group_menbers = g['MemberCount']
break
group_name = group_name + "(" + str(group_menbers) +")"
#Otherwise it's a personal friend's message
else:
if itchat.search_friends(userName=msg['FromUserName'])['RemarkName']:# Prioritize the use of memo names
msg_from = itchat.search_friends(userName=msg['FromUserName'])['RemarkName']
else:
msg_from = itchat.search_friends(userName=msg['FromUserName'])['NickName'] # Look up the nicknames of friends who send messages in the friends list
group_name = ""
msg_time = msg['CreateTime'] # of time the message was sent
msg_id = msg['MsgId'] # id of each message
msg_content = None # Content of stored information
msg_share_url = None #Store shared links, such as shared articles and music
# If the message sent is text or a friend recommendation
if msg['Type'] == 'Text' or msg['Type'] == 'Friends':
msg_content = msg['Text']
# If the message sent is an attachment, video, picture, voice
elif msg['Type'] == "Attachment" or msg['Type'] == "Video" \
or msg['Type'] == 'Picture' \
or msg['Type'] == 'Recording':
msg_content = msg['FileName'] # The contents are their filenames
#msg_content = "F:\\weixininfo\\"+msg['FileName']
msg['Text'](str(msg_content)) #Download file
elif msg['Type'] == 'Map': # If the message is shared location information
x, y, location = (
"<location x=\"(.*?)\" y=\"(.*?)\".*label=\"(.*?)\".*", msg['OriContent']).group(1, 2, 3)
if location is None:
msg_content = r"Latitude->" + x.__str__() + " Longitude->" + y.__str__() #Content for detailed address
else:
msg_content = r"" + location
elif msg['Type'] == 'Sharing': # If the message is a shared music or article, the details are the title of the article or the name of the share
msg_content = msg['Text']
msg_share_url = msg['Url'] #record the shared url
face_bug = msg_content
# Store the messages in a dictionary, with each msg_id corresponding to a message
(2)
msg_information.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,
"group_name":group_name
}
}
)
#Automatically deletes messages older than 130 seconds to avoid memory shortage caused by too much data.
del_info = []
for k in msg_information:
m_time = msg_information[k]['msg_time'] # Get message time
if int(()) - m_time > 130:
del_info.append(k)
if del_info:
for i in del_info:
msg_information.pop(i)
# Listen for message withdrawals
@itchat.msg_register(NOTE,isFriendChat=True,isGroupChat=True,isMpChat=True)
def information(msg):
# If the msg['Content'] here contains the message withdrawal and id, execute the following statement
if 'Withdrew a message' in msg['Content']:
old_msg_id = ("\<msgid\>(.*?)\<\/msgid\>", msg['Content']).group(1) # Find the id of the withdrawn message in the returned content
old_msg = msg_information.get(old_msg_id) # Get the original message, type: dictionary
print(old_msg)
if len(old_msg_id)<11: #If you're sending an emoji
itchat.send_file(face_bug,toUserName='filehelper')
else: #Send withdrawn alerts to file helpers
msg_body = old_msg['group_name'] + old_msg['msg_from'] +"\n" + old_msg['msg_time_rec'] \
+ "Withdrawn:" + "\n" + r"" + old_msg['msg_content']
#If it's a shared file that's been withdrawn, then add the shared url to msg_body to send to the file helper
if old_msg['msg_type'] == "Sharing":
msg_body += "\n link is:" + old_msg.get('msg_share_url')
#print(msg_body)
itchat.send_msg(msg_body, toUserName='filehelper')# Send the withdrawal message to the document assistant
#Send the file back if there is one.
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 = '@fil@%s' % (old_msg['msg_content'])
(msg=file, toUserName='filehelper')
(old_msg['msg_content'])
msg_information.pop(old_msg_id)# Delete old dictionary messages
itchat.auto_login(hotReload=True,enableCmdQR=1)
()
reasoning
1) Login with itchat, a python wechat library
itchat.auto_login Scanning login required hotReload=True Means no scanning next time. will be generated locally
2）
@itchat.msg_register Called when the corresponding message type is received.
The corresponding types are as follows
# TEXT here means if someone sends a text message () # TEXT Text Text content (text message) # MAP Map Location Text (Location Sharing) # CARD Business Card Referrer's Dictionary (Referrer's Business Card) # SHARING Share Name of the share (music or article shared, etc.) # PICTURE How to download images/expressions # RECORDING Voice Download Method # ATTACHMENT Attachment Download Method # VIDEO How to Download # FRIENDS Friends Invitation Required parameters to add friends # SYSTEM System Message A list consisting of the UserName of the user or group chat that updated the content. # NOTE Notification Notification text (message retraction, etc.), then the following method is called # included among theseisFriendChatdenotes a close friend，isGroupChatIndicates a group chat，isMapChatdenote a public number
Then get the contents of the msg such as send time msg_time
Send content msg_content etc. Store these messages in msg_information.
Determine the content of the message has withdrawn a message according to the message id go to msg_information to get the content of the object send to the phone assistant and print on the screen finally if the time is more than 130 seconds delete the content of the msg_information
The running image is below:
summarize
The above is a small introduction to the use of Python WeChat library itchat to get friends and groups have withdrawn the message, I hope to help you, if you have any questions welcome to leave me a message, I will reply to you in a timely manner!