用Python实现微信撤回消息还原

在使用微信过程中，有时候我们会撤回一些发错或者不该发的一些信息，今天我就用一段代码实现将撤回的消息还原。。。

从此再也不怕别人撤回消息，自己不能看的尴尬了

import os
import re
import shutil
import time
import itchat
from itchat.content import *

# 说明：可以撤回的有文本文字、语音、视频、图片、位置、名片、分享、附件
# {msg_id:(msg_from,msg_to,msg_time,msg_time_rec,msg_type,msg_content,msg_share_url)}
msg_dict = {}

# 文件存储临时目录
rev_tmp_dir = "/home/worker/Desktop/wechat"
if not os.path.exists(rev_tmp_dir): os.mkdir(rev_tmp_dir)

# 表情有一个问题 | 接受信息和接受note的msg_id不一致巧合解决方案
face_bug = None

# 将接收到的消息存放在字典中，当接收到新消息时对字典中超时的消息进行清理 | 不接受不具有撤回功能的信息 # [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
# 获取的是本地时间戳并格式化本地时间戳 e: 2017-04-21 21:30:08
msg_time_rec = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
# 消息ID
msg_id = msg['MsgId']
# 消息时间
msg_time = msg['CreateTime']
# 消息发送人昵称 | 这里也可以使用RemarkName备注　但是自己或者没有备注的人为None
msg_from = (itchat.search_friends(userName=msg['FromUserName']))["NickName"]
# 消息内容
msg_content = None
# 分享的链接
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']
# 保存文件
msg['Text'](rev_tmp_dir + msg['FileName'])
elif msg['Type'] == 'Card':
msg_content = msg['RecommendInfo']['NickName'] + r" 的名片"
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"纬度->" + x.__str__() + " 经度->" + y.__str__()
else:
msg_content = r"" + location
elif msg['Type'] == 'Sharing':
msg_content = msg['Text']
msg_share_url = msg['Url']
face_bug = msg_content
# 更新字典
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
}
}
)

# 收到note通知类消息，判断是不是撤回并进行相应操作
@itchat.msg_register([NOTE])
def send_msg_helper(msg):
global face_bug
if re.search(r"\<\!\[CDATA\[.*撤回了一条消息\]\]\>", msg['Content']) is not None:
# 获取消息的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 = "告诉你一个秘密~" + "\n" \
+ old_msg.get('msg_from') + " 撤回了 " + old_msg.get("msg_type") + " 消息" + "\n" \
+ old_msg.get('msg_time_rec') + "\n" \
+ "撤回了什么 ⇣" + "\n" \
+ r"" + old_msg.get('msg_content')
# 如果是分享存在链接
if old_msg['msg_type'] == "Sharing": msg_body += "\n就是这个链接➣ " + old_msg.get('msg_share_url')

# 将撤回消息发送到文件助手
itchat.send(msg_body, toUserName='filehelper')
# 有文件的话也要将文件发送回去
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' % (rev_tmp_dir + old_msg['msg_content'])
itchat.send(msg=file, toUserName='filehelper')
os.remove(rev_tmp_dir + old_msg['msg_content'])
# 删除字典旧消息
msg_dict.pop(old_msg_id)