你以为你撤回消息了，我就没办法了吗？大Python暴力破解撤回系统

01 代码实现

# -*-encoding:utf-8-*- 
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/alic/RevDir/" 
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) 
 
if __name__ == '__main__': 
 itchat.auto_login(hotReload=True,enableCmdQR=2) 
 itchat.run()

03 itchat

上面都是编程逻辑的小事，我还是记录一下itchat微信这个开源库。

1. 简介

itchat是一个开源的微信个人号接口，使用python调用微信变得非常简单。简单是用itchat代码即可构建一个基于微信的即时通讯，更不错的体现在于方便扩展个人微信的在其他平台的更多通讯功能。

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你以为你撤回消息了，我就没办法了吗？大Python暴力破解撤回系统

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