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 - 好文

01 代码实现

# -*-encoding:utf-8-*- import os import re import shutil import time import
itchatfrom 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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