# encoding:utf-8 """ wechat channel """ import os import requests import io import time from lib import itchat import json from lib.itchat.content import * from bridge.reply import * from bridge.context import * from channel.channel import Channel from concurrent.futures import ThreadPoolExecutor from common.log import logger from common.tmp_dir import TmpDir from config import conf from common.time_check import time_checker from plugins import * from voice.audio_convert import mp3_to_wav thread_pool = ThreadPoolExecutor(max_workers=8) def thread_pool_callback(worker): worker_exception = worker.exception() if worker_exception: logger.exception("Worker return exception: {}".format(worker_exception)) @itchat.msg_register(TEXT) def handler_single_msg(msg): WechatChannel().handle_text(msg) return None @itchat.msg_register(TEXT, isGroupChat=True) def handler_group_msg(msg): WechatChannel().handle_group(msg) return None @itchat.msg_register(VOICE) def handler_single_voice(msg): WechatChannel().handle_voice(msg) return None @itchat.msg_register(VOICE, isGroupChat=True) def handler_group_voice(msg): WechatChannel().handle_group_voice(msg) return None class WechatChannel(Channel): def __init__(self): self.userName = None self.nickName = None def startup(self): itchat.instance.receivingRetryCount = 600 # 修改断线超时时间 # login by scan QRCode hotReload = conf().get('hot_reload', False) try: itchat.auto_login(enableCmdQR=2, hotReload=hotReload) except Exception as e: if hotReload: logger.error( "Hot reload failed, try to login without hot reload") itchat.logout() os.remove("itchat.pkl") itchat.auto_login(enableCmdQR=2, hotReload=hotReload) else: raise e self.userName = itchat.instance.storageClass.userName self.nickName = itchat.instance.storageClass.nickName logger.info("Wechat login success, username: {}, nickname: {}".format(self.userName, self.nickName)) # start message listener itchat.run() # handle_* 系列函数处理收到的消息后构造Context，然后传入handle函数中处理Context和发送回复 # Context包含了消息的所有信息，包括以下属性 # type 消息类型, 包括TEXT、VOICE、IMAGE_CREATE # content 消息内容，如果是TEXT类型，content就是文本内容，如果是VOICE类型，content就是语音文件名，如果是IMAGE_CREATE类型，content就是图片生成命令 # kwargs 附加参数字典，包含以下的key： # session_id: 会话id # isgroup: 是否是群聊 # receiver: 需要回复的对象 # msg: itchat的原始消息对象 def handle_voice(self, msg): if conf().get('speech_recognition') != True: return logger.debug("[WX]receive voice msg: " + msg['FileName']) to_user_id = msg['ToUserName'] from_user_id = msg['FromUserName'] try: other_user_id = msg['User']['UserName'] # 对手方id except Exception as e: logger.warn("[WX]get other_user_id failed: " + str(e)) if from_user_id == self.userName: other_user_id = to_user_id else: other_user_id = from_user_id if from_user_id == other_user_id: context = Context(ContextType.VOICE,msg['FileName']) context.kwargs = {'isgroup': False, 'msg': msg, 'receiver': other_user_id, 'session_id': other_user_id} thread_pool.submit(self.handle, context).add_done_callback(thread_pool_callback) @time_checker def handle_text(self, msg): logger.debug("[WX]receive text msg: " + json.dumps(msg, ensure_ascii=False)) content = msg['Text'] from_user_id = msg['FromUserName'] to_user_id = msg['ToUserName'] # 接收人id try: other_user_id = msg['User']['UserName'] # 对手方id except Exception as e: logger.warn("[WX]get other_user_id failed: " + str(e)) if from_user_id == self.userName: other_user_id = to_user_id else: other_user_id = from_user_id create_time = msg['CreateTime'] # 消息时间 match_prefix = check_prefix(content, conf().get('single_chat_prefix')) if conf().get('hot_reload') == True and int(create_time) < int(time.time()) - 60: # 跳过1分钟前的历史消息 logger.debug("[WX]history message skipped") return if "」\n- - - - - - - - - - - - - - -" in content: logger.debug("[WX]reference query skipped") return if match_prefix: content = content.replace(match_prefix, '', 1).strip() elif match_prefix is None: return context = Context() context.kwargs = {'isgroup': False, 'msg': msg, 'receiver': other_user_id, 'session_id': other_user_id} img_match_prefix = check_prefix( content, conf().get('image_create_prefix')) if img_match_prefix: content = content.replace(img_match_prefix, '', 1).strip() context.type = ContextType.IMAGE_CREATE else: context.type = ContextType.TEXT context.content = content thread_pool.submit(self.handle, context).add_done_callback( thread_pool_callback) @time_checker def handle_group(self, msg): logger.debug("[WX]receive group msg: " + json.dumps(msg, ensure_ascii=False)) group_name = msg['User'].get('NickName', None) group_id = msg['User'].get('UserName', None) create_time = msg['CreateTime'] # 消息时间 if conf().get('hot_reload') == True and int(create_time) < int(time.time()) - 60: # 跳过1分钟前的历史消息 logger.debug("[WX]history group message skipped") return if not group_name: return "" origin_content = msg['Content'] content = msg['Content'] content_list = content.split(' ', 1) context_special_list = content.split('\u2005', 1) if len(context_special_list) == 2: content = context_special_list[1] elif len(content_list) == 2: content = content_list[1] if "」\n- - - - - - - - - - - - - - -" in content: logger.debug("[WX]reference query skipped") return "" config = conf() match_prefix = (msg['IsAt'] and not config.get("group_at_off", False)) or check_prefix(origin_content, config.get('group_chat_prefix')) \ or check_contain(origin_content, config.get('group_chat_keyword')) if ('ALL_GROUP' in config.get('group_name_white_list') or group_name in config.get('group_name_white_list') or check_contain(group_name, config.get('group_name_keyword_white_list'))) and match_prefix: context = Context() context.kwargs = {'isgroup': True, 'msg': msg, 'receiver': group_id} img_match_prefix = check_prefix( content, conf().get('image_create_prefix')) if img_match_prefix: content = content.replace(img_match_prefix, '', 1).strip() context.type = ContextType.IMAGE_CREATE else: context.type = ContextType.TEXT context.content = content group_chat_in_one_session = conf().get('group_chat_in_one_session', []) if ('ALL_GROUP' in group_chat_in_one_session or group_name in group_chat_in_one_session or check_contain(group_name, group_chat_in_one_session)): context['session_id'] = group_id else: context['session_id'] = msg['ActualUserName'] thread_pool.submit(self.handle, context).add_done_callback( thread_pool_callback) def handle_group_voice(self, msg): if conf().get('group_speech_recognition', False) != True: return logger.debug("[WX]receive voice for group msg: " + msg['FileName']) group_name = msg['User'].get('NickName', None) group_id = msg['User'].get('UserName', None) create_time = msg['CreateTime'] # 消息时间 if conf().get('hot_reload') == True and int(create_time) < int(time.time()) - 60: #跳过1分钟前的历史消息 logger.debug("[WX]history group voice skipped") return # 验证群名 if not group_name: return "" if ('ALL_GROUP' in conf().get('group_name_white_list') or group_name in conf().get('group_name_white_list') or check_contain(group_name, conf().get('group_name_keyword_white_list'))): context = Context(ContextType.VOICE,msg['FileName']) context.kwargs = {'isgroup': True, 'msg': msg, 'receiver': group_id} group_chat_in_one_session = conf().get('group_chat_in_one_session', []) if ('ALL_GROUP' in group_chat_in_one_session or group_name in group_chat_in_one_session or check_contain(group_name, group_chat_in_one_session)): context['session_id'] = group_id else: context['session_id'] = msg['ActualUserName'] thread_pool.submit(self.handle, context).add_done_callback(thread_pool_callback) # 统一的发送函数，每个Channel自行实现，根据reply的type字段发送不同类型的消息 def send(self, reply: Reply, receiver): if reply.type == ReplyType.TEXT: itchat.send(reply.content, toUserName=receiver) logger.info('[WX] sendMsg={}, receiver={}'.format(reply, receiver)) elif reply.type == ReplyType.ERROR or reply.type == ReplyType.INFO: itchat.send(reply.content, toUserName=receiver) logger.info('[WX] sendMsg={}, receiver={}'.format(reply, receiver)) elif reply.type == ReplyType.VOICE: itchat.send_file(reply.content, toUserName=receiver) logger.info('[WX] sendFile={}, receiver={}'.format( reply.content, receiver)) elif reply.type == ReplyType.IMAGE_URL: # 从网络下载图片 img_url = reply.content pic_res = requests.get(img_url, stream=True) image_storage = io.BytesIO() for block in pic_res.iter_content(1024): image_storage.write(block) image_storage.seek(0) itchat.send_image(image_storage, toUserName=receiver) logger.info('[WX] sendImage url={}, receiver={}'.format( img_url, receiver)) elif reply.type == ReplyType.IMAGE: # 从文件读取图片 image_storage = reply.content image_storage.seek(0) itchat.send_image(image_storage, toUserName=receiver) logger.info('[WX] sendImage, receiver={}'.format(receiver)) # 处理消息 TODO: 如果wechaty解耦，此处逻辑可以放置到父类 def handle(self, context): if not context.content: return reply = Reply() logger.debug('[WX] ready to handle context: {}'.format(context)) # reply的构建步骤 e_context = PluginManager().emit_event(EventContext(Event.ON_HANDLE_CONTEXT, { 'channel': self, 'context': context, 'reply': reply})) reply = e_context['reply'] if not e_context.is_pass(): logger.debug('[WX] ready to handle context: type={}, content={}'.format(context.type, context.content)) if context.type == ContextType.TEXT or context.type == ContextType.IMAGE_CREATE: # 文字和图片消息 reply = super().build_reply_content(context.content, context) elif context.type == ContextType.VOICE: # 语音消息 msg = context['msg'] mp3_path = TmpDir().path() + context.content msg.download(mp3_path) # mp3转wav wav_path = os.path.splitext(mp3_path)[0] + '.wav' mp3_to_wav(mp3_path=mp3_path, wav_path=wav_path) # 语音识别 reply = super().build_voice_to_text(wav_path) # 删除临时文件 os.remove(wav_path) os.remove(mp3_path) if reply.type != ReplyType.ERROR and reply.type != ReplyType.INFO: content = reply.content # 语音转文字后，将文字内容作为新的context context.type = ContextType.TEXT if (context["isgroup"] == True): # 校验关键字 match_prefix = check_prefix(content, conf().get('group_chat_prefix')) \ or check_contain(content, conf().get('group_chat_keyword')) # Wechaty判断is_at为True，返回的内容是过滤掉@之后的内容；而is_at为False，则会返回完整的内容 if match_prefix is not None: # 故判断如果匹配到自定义前缀，则返回过滤掉前缀+空格后的内容，用于实现类似自定义+前缀触发生成AI图片的功能 prefixes = conf().get('group_chat_prefix') for prefix in prefixes: if content.startswith(prefix): content = content.replace(prefix, '', 1).strip() break else: logger.info("[WX]receive voice check prefix: " + 'False') return img_match_prefix = check_prefix(content, conf().get('image_create_prefix')) if img_match_prefix: content = content.replace(img_match_prefix, '', 1).strip() context.type = ContextType.IMAGE_CREATE else: context.type = ContextType.TEXT context.content = content reply = super().build_reply_content(context.content, context) if reply.type == ReplyType.TEXT: if conf().get('voice_reply_voice'): reply = super().build_text_to_voice(reply.content) else: logger.error('[WX] unknown context type: {}'.format(context.type)) return logger.debug('[WX] ready to decorate reply: {}'.format(reply)) # reply的包装步骤 if reply and reply.type: e_context = PluginManager().emit_event(EventContext(Event.ON_DECORATE_REPLY, { 'channel': self, 'context': context, 'reply': reply})) reply = e_context['reply'] if not e_context.is_pass() and reply and reply.type: if reply.type == ReplyType.TEXT: reply_text = reply.content if context['isgroup']: reply_text = '@' + \ context['msg']['ActualNickName'] + \ ' ' + reply_text.strip() reply_text = conf().get("group_chat_reply_prefix", "")+reply_text else: reply_text = conf().get("single_chat_reply_prefix", "")+reply_text reply.content = reply_text elif reply.type == ReplyType.ERROR or reply.type == ReplyType.INFO: reply.content = str(reply.type)+":\n" + reply.content elif reply.type == ReplyType.IMAGE_URL or reply.type == ReplyType.VOICE or reply.type == ReplyType.IMAGE: pass else: logger.error( '[WX] unknown reply type: {}'.format(reply.type)) return # reply的发送步骤 if reply and reply.type: e_context = PluginManager().emit_event(EventContext(Event.ON_SEND_REPLY, { 'channel': self, 'context': context, 'reply': reply})) reply = e_context['reply'] if not e_context.is_pass() and reply and reply.type: logger.debug('[WX] ready to send reply: {} to {}'.format( reply, context['receiver'])) self.send(reply, context['receiver']) def check_prefix(content, prefix_list): for prefix in prefix_list: if content.startswith(prefix): return prefix return None def check_contain(content, keyword_list): if not keyword_list: return None for ky in keyword_list: if content.find(ky) != -1: return True return None