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- import os
- import re
- import time
- from common.expired_dict import ExpiredDict
- from channel.channel import Channel
- from bridge.reply import *
- from bridge.context import *
- from config import conf
- from common.log import logger
- from plugins import *
- try:
- from voice.audio_convert import any_to_wav
- except Exception as e:
- pass
-
- # 抽象类, 它包含了与消息通道无关的通用处理逻辑
- class ChatChannel(Channel):
- name = None # 登录的用户名
- user_id = None # 登录的用户id
- def __init__(self):
- pass
-
- # 根据消息构造context，消息内容相关的触发项写在这里
- def _compose_context(self, ctype: ContextType, content, **kwargs):
- context = Context(ctype, content)
- context.kwargs = kwargs
- # context首次传入时，origin_ctype是None,
- # 引入的起因是：当输入语音时，会嵌套生成两个context，第一步语音转文本，第二步通过文本生成文字回复。
- # origin_ctype用于第二步文本回复时，判断是否需要匹配前缀，如果是私聊的语音，就不需要匹配前缀
- if 'origin_ctype' not in context:
- context['origin_ctype'] = ctype
- # context首次传入时，receiver是None，根据类型设置receiver
- first_in = 'receiver' not in context
- # 群名匹配过程，设置session_id和receiver
- if first_in: # context首次传入时，receiver是None，根据类型设置receiver
- config = conf()
- cmsg = context['msg']
- if cmsg.from_user_id == self.user_id:
- logger.debug("[WX]self message skipped")
- return None
- if context["isgroup"]:
- group_name = cmsg.other_user_nickname
- group_id = cmsg.other_user_id
-
- group_name_white_list = config.get('group_name_white_list', [])
- group_name_keyword_white_list = config.get('group_name_keyword_white_list', [])
- if any([group_name in group_name_white_list, 'ALL_GROUP' in group_name_white_list, check_contain(group_name, group_name_keyword_white_list)]):
- group_chat_in_one_session = conf().get('group_chat_in_one_session', [])
- session_id = cmsg.actual_user_id
- if any([group_name in group_chat_in_one_session, 'ALL_GROUP' in group_chat_in_one_session]):
- session_id = group_id
- else:
- return None
- context['session_id'] = session_id
- context['receiver'] = group_id
- else:
- context['session_id'] = cmsg.other_user_id
- context['receiver'] = cmsg.other_user_id
-
- # 消息内容匹配过程，并处理content
- if ctype == ContextType.TEXT:
- if first_in and "」\n- - - - - - -" in content: # 初次匹配 过滤引用消息
- logger.debug("[WX]reference query skipped")
- return None
-
- if context["isgroup"]: # 群聊
- # 校验关键字
- match_prefix = check_prefix(content, conf().get('group_chat_prefix'))
- match_contain = check_contain(content, conf().get('group_chat_keyword'))
- if match_prefix is not None or match_contain is not None:
- if match_prefix:
- content = content.replace(match_prefix, '', 1).strip()
- elif context['msg'].is_at and not conf().get("group_at_off", False):
- logger.info("[WX]receive group at, continue")
- pattern = f'@{self.name}(\u2005|\u0020)'
- content = re.sub(pattern, r'', content)
- elif context["origin_ctype"] == ContextType.VOICE:
- logger.info("[WX]receive group voice, checkprefix didn't match")
- return None
- else:
- return None
- else: # 单聊
- match_prefix = check_prefix(content, conf().get('single_chat_prefix'))
- if match_prefix is not None: # 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
- content = content.replace(match_prefix, '', 1).strip()
- elif context["origin_ctype"] == ContextType.VOICE: # 如果源消息是私聊的语音消息，允许不匹配前缀，放宽条件
- pass
- else:
- return None
-
- 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
- elif context.type == ContextType.VOICE:
- if 'desire_rtype' not in context and conf().get('voice_reply_voice'):
- context['desire_rtype'] = ReplyType.VOICE
-
-
- return context
-
- # 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: Context):
- if context is None or not context.content:
- return
- logger.debug('[WX] ready to handle context: {}'.format(context))
- # reply的构建步骤
- reply = self._generate_reply(context)
-
- logger.debug('[WX] ready to decorate reply: {}'.format(reply))
- # reply的包装步骤
- reply = self._decorate_reply(context, reply)
-
- # reply的发送步骤
- self._send_reply(context, reply)
-
- def _generate_reply(self, context: Context, reply: Reply = Reply()) -> Reply:
- 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
- cmsg = context['msg']
- cmsg.prepare()
- file_path = context.content
- wav_path = os.path.splitext(file_path)[0] + '.wav'
- try:
- any_to_wav(file_path, wav_path)
- except Exception as e: # 转换失败，直接使用mp3，对于某些api，mp3也可以识别
- logger.warning("[WX]any to wav error, use raw path. " + str(e))
- wav_path = file_path
- # 语音识别
- reply = super().build_voice_to_text(wav_path)
- # 删除临时文件
- try:
- os.remove(file_path)
- os.remove(wav_path)
- except Exception as e:
- logger.warning("[WX]delete temp file error: " + str(e))
-
- if reply.type == ReplyType.TEXT:
- new_context = self._compose_context(
- ContextType.TEXT, reply.content, **context.kwargs)
- if new_context:
- reply = self._generate_reply(new_context)
- else:
- return
- else:
- logger.error('[WX] unknown context type: {}'.format(context.type))
- return
- return reply
-
- def _decorate_reply(self, context: Context, reply: Reply) -> Reply:
- 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']
- desire_rtype = context.get('desire_rtype')
- if not e_context.is_pass() and reply and reply.type:
- if reply.type == ReplyType.TEXT:
- reply_text = reply.content
- if desire_rtype == ReplyType.VOICE:
- reply = super().build_text_to_voice(reply.content)
- return self._decorate_reply(context, reply)
- if context['isgroup']:
- reply_text = '@' + context['msg'].actual_user_nickname + ' ' + 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
- if desire_rtype and desire_rtype != reply.type and reply.type not in [ReplyType.ERROR, ReplyType.INFO]:
- logger.warning('[WX] desire_rtype: {}, but reply type: {}'.format(context.get('desire_rtype'), reply.type))
- return reply
-
- def _send_reply(self, context: Context, reply: Reply):
- 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))
- self._send(reply, context)
-
- def _send(self, reply: Reply, context: Context, retry_cnt = 0):
- try:
- self.send(reply, context)
- except Exception as e:
- logger.error('[WX] sendMsg error: {}'.format(e))
- if retry_cnt < 2:
- time.sleep(3+3*retry_cnt)
- self._send(reply, context, retry_cnt+1)
-
-
-
- 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
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