python如何查看微信消息撤回

# -*-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 = \"/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 = \"爱你蕾蕾 ⇣\" + \"\\n\" \\
            + old_msg.get(\'msg_from\') + \" 撤回了 \" + old_msg.get(\"msg_type\") + \" 消息\" + \"\\n\" \\
            + old_msg.get(\'msg_time_rec\') + \"\\n\" \\
            + \"内容 ⇣\" + \"\\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=1)
  itchat.run()