Python实现微信中找回好友、群聊用户撤回的消息功能示例

#coding=utf-8import itchatfrom itchat.content import TEXTfrom itchat.content import *import sysimport timeimport reimport osmsg_information = {}face_bug=None #针对表情包的内容@itchat.msg_register([TEXT,PICTURE,FRIENDS,CARD,MAP,SHARING,RECORDING,ATTACHMENT,VIDEO],isFriendChat=True,isGroupChat=True)def receive_msg(msg):  global face_bug  msg_time_rec = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime()) #接收消息的时间  if 'ActualNickName' in msg:    from_user = msg['ActualUserName'] #群消息的发送者,用户的唯一标识    msg_from = msg['ActualNickName']#发送者群内的昵称    friends = itchat.get_friends(update=True)#获取所有好友    for f in friends:      if from_user == f['UserName']: #如果群消息是好友发的        if f['RemarkName']: # 优先使用好友的备注名称，没有则使用昵称          msg_from = f['RemarkName']        else:          msg_from = f['NickName']        break    groups = itchat.get_chatrooms(update=True)#获取所有的群    for g in groups:      if msg['FromUserName'] == g['UserName']:#根据群消息的FromUserName匹配是哪个群        group_name = g['NickName']        group_menbers = g['MemberCount']        break    group_name = group_name + "(" + str(group_menbers) +")"  else:    if itchat.search_friends(userName=msg['FromUserName'])['RemarkName']:#优先使用备注名称      msg_from = itchat.search_friends(userName=msg['FromUserName'])['RemarkName']    else:      msg_from = itchat.search_friends(userName=msg['FromUserName'])['NickName'] #在好友列表中查询发送信息的好友昵称    group_name = ""  msg_time = msg['CreateTime'] #信息发送的时间  msg_id = msg['MsgId']  #每条信息的id  msg_content = None   #储存信息的内容  msg_share_url = None  #储存分享的链接，比如分享的文章和音乐  if msg['Type'] == 'Text' or msg['Type'] == 'Friends':   #如果发送的消息是文本或者好友推荐    msg_content = msg['Text']  #如果发送的消息是附件、视频、图片、语音  elif msg['Type'] == "Attachment" or msg['Type'] == "Video" /      or msg['Type'] == 'Picture' /      or msg['Type'] == 'Recording':    msg_content = msg['FileName']  #内容就是他们的文件名    msg['Text'](str(msg_content))  #下载文件  elif msg['Type'] == 'Map':  #如果消息为分享的位置信息    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__()   #内容为详细的地址    else:      msg_content = r"" + location  elif msg['Type'] == 'Sharing':   #如果消息为分享的音乐或者文章，详细的内容为文章的标题或者是分享的名字    msg_content = msg['Text']    msg_share_url = msg['Url']    #记录分享的url  face_bug = msg_content  #将信息存储在字典中，每一个msg_id对应一条信息  time.sleep(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      }    }  )  del_info = []  for k in msg_information:    m_time = msg_information[k]['msg_time'] #取得消息时间    if int(time.time()) - m_time > 130: #如果消息时间是130秒甚至更久之前的，则删除。      del_info.append(k)  if del_info:    for i in del_info:      msg_information.pop(i)#监听是否有消息撤回@itchat.msg_register(NOTE,isFriendChat=True,isGroupChat=True,isMpChat=True)def information(msg):  #如果这里的msg['Content']中包含消息撤回和id，就执行下面的语句  if '撤回了一条消息' in msg['Content']:    old_msg_id = re.search("/<msgid/>(.*?)/<//msgid/>", msg['Content']).group(1) #在返回的content查找撤回的消息的id    old_msg = msg_information.get(old_msg_id)  #获取到消息原文,类型：字典    print(old_msg)    if len(old_msg_id)<11: #如果发送的是表情包      itchat.send_file(face_bug,toUserName='filehelper')    else: #发送撤回的提示给文件助手      msg_body = old_msg['group_name'] + old_msg['msg_from'] +"/n" + old_msg['msg_time_rec'] /            + "撤回了:" + "/n" + r"" + old_msg['msg_content']      #如果是分享的文件被撤回了，那么就将分享的url加在msg_body中发送给文件助手      if old_msg['msg_type'] == "Sharing":        msg_body += "/n链接是:" + old_msg.get('msg_share_url')      #print(msg_body)      itchat.send_msg(msg_body, toUserName='filehelper')#将撤回消息发给文件助手      #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' % (old_msg['msg_content'])        itchat.send(msg=file, toUserName='filehelper')        os.remove(old_msg['msg_content'])      msg_information.pop(old_msg_id)# 删除字典旧消息itchat.auto_login(hotReload=True,enableCmdQR=1)itchat.run()