mirror of
https://github.com/zhayujie/chatgpt-on-wechat.git
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268 lines
12 KiB
Python
268 lines
12 KiB
Python
# -*- coding: utf-8 -*-
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import web
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import time
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import math
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import hashlib
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import textwrap
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from channel.chat_channel import ChatChannel
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import channel.wechatmp.reply as reply
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import channel.wechatmp.receive as receive
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from common.expired_dict import ExpiredDict
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from common.singleton import singleton
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from common.log import logger
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from config import conf
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from bridge.reply import *
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from bridge.context import *
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from plugins import *
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import traceback
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# If using SSL, uncomment the following lines, and modify the certificate path.
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# from cheroot.server import HTTPServer
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# from cheroot.ssl.builtin import BuiltinSSLAdapter
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# HTTPServer.ssl_adapter = BuiltinSSLAdapter(
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# certificate='/ssl/cert.pem',
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# private_key='/ssl/cert.key')
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# from concurrent.futures import ThreadPoolExecutor
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# thread_pool = ThreadPoolExecutor(max_workers=8)
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MAX_UTF8_LEN = 2048
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@singleton
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class WechatMPChannel(ChatChannel):
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NOT_SUPPORT_REPLYTYPE = [ReplyType.IMAGE, ReplyType.VOICE]
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def __init__(self):
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super().__init__()
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self.cache_dict = dict()
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self.running = set()
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self.query1 = dict()
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self.query2 = dict()
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self.query3 = dict()
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self.received_msgs = ExpiredDict(60*60*24)
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def startup(self):
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urls = (
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'/wx', 'SubsribeAccountQuery',
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)
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app = web.application(urls, globals(), autoreload=False)
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port = conf().get('wechatmp_port', 8080)
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web.httpserver.runsimple(app.wsgifunc(), ('0.0.0.0', port))
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def send(self, reply: Reply, context: Context):
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receiver = context["receiver"]
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self.cache_dict[receiver] = reply.content
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self.running.remove(receiver)
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logger.debug("[send] reply to {} saved to cache: {}".format(receiver, reply))
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def _fail_callback(self, session_id, exception, context, **kwargs):
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logger.exception("[wechatmp] Fail to generation message to user, msgId={}, exception={}".format(context['msg'].msg_id, exception))
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assert session_id not in self.cache_dict
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self.running.remove(session_id)
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def verify_server():
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try:
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data = web.input()
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if len(data) == 0:
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return "None"
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signature = data.signature
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timestamp = data.timestamp
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nonce = data.nonce
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echostr = data.echostr
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token = conf().get('wechatmp_token') #请按照公众平台官网\基本配置中信息填写
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data_list = [token, timestamp, nonce]
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data_list.sort()
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sha1 = hashlib.sha1()
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# map(sha1.update, data_list) #python2
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sha1.update("".join(data_list).encode('utf-8'))
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hashcode = sha1.hexdigest()
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print("handle/GET func: hashcode, signature: ", hashcode, signature)
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if hashcode == signature:
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return echostr
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else:
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return ""
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except Exception as Argument:
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return Argument
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# This class is instantiated once per query
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class SubsribeAccountQuery():
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def GET(self):
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return verify_server()
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def POST(self):
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channel = WechatMPChannel()
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try:
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query_time = time.time()
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webData = web.data()
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logger.debug("[wechatmp] Receive request:\n" + webData.decode("utf-8"))
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wechat_msg = receive.parse_xml(webData)
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if wechat_msg.msg_type == 'text':
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from_user = wechat_msg.from_user_id
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to_user = wechat_msg.to_user_id
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message = wechat_msg.content.decode("utf-8")
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message_id = wechat_msg.msg_id
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logger.info("[wechatmp] {}:{} Receive post query {} {}: {}".format(web.ctx.env.get('REMOTE_ADDR'), web.ctx.env.get('REMOTE_PORT'), from_user, message_id, message))
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supported = True
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if "【收到不支持的消息类型，暂无法显示】" in message:
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supported = False # not supported, used to refresh
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cache_key = from_user
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reply_text = ""
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# New request
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if cache_key not in channel.cache_dict and cache_key not in channel.running:
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# The first query begin, reset the cache
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context = channel._compose_context(ContextType.TEXT, message, isgroup=False, msg=wechat_msg)
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logger.debug("[wechatmp] context: {} {}".format(context, wechat_msg))
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if message_id in channel.received_msgs: # received and finished
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return
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if supported and context:
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# set private openai_api_key
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# if from_user is not changed in itchat, this can be placed at chat_channel
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user_data = conf().get_user_data(from_user)
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context['openai_api_key'] = user_data.get('openai_api_key') # None or user openai_api_key
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channel.received_msgs[message_id] = wechat_msg
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channel.running.add(cache_key)
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channel.produce(context)
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else:
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trigger_prefix = conf().get('single_chat_prefix',[''])[0]
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if trigger_prefix or not supported:
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if trigger_prefix:
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content = textwrap.dedent(f"""\
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请输入'{trigger_prefix}'接你想说的话跟我说话。
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例如:
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{trigger_prefix}你好，很高兴见到你。""")
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else:
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content = textwrap.dedent("""\
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你好，很高兴见到你。
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请跟我说话吧。""")
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else:
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logger.error(f"[wechatmp] unknown error")
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content = textwrap.dedent("""\
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未知错误，请稍后再试""")
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replyMsg = reply.TextMsg(wechat_msg.from_user_id, wechat_msg.to_user_id, content)
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return replyMsg.send()
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channel.query1[cache_key] = False
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channel.query2[cache_key] = False
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channel.query3[cache_key] = False
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# Request again
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elif cache_key in channel.running and channel.query1.get(cache_key) == True and channel.query2.get(cache_key) == True and channel.query3.get(cache_key) == True:
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channel.query1[cache_key] = False #To improve waiting experience, this can be set to True.
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channel.query2[cache_key] = False #To improve waiting experience, this can be set to True.
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channel.query3[cache_key] = False
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elif cache_key in channel.cache_dict:
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# Skip the waiting phase
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channel.query1[cache_key] = True
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channel.query2[cache_key] = True
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channel.query3[cache_key] = True
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assert not (cache_key in channel.cache_dict and cache_key in channel.running)
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if channel.query1.get(cache_key) == False:
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# The first query from wechat official server
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logger.debug("[wechatmp] query1 {}".format(cache_key))
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channel.query1[cache_key] = True
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cnt = 0
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while cache_key not in channel.cache_dict and cnt < 45:
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cnt = cnt + 1
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time.sleep(0.1)
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if cnt == 45:
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# waiting for timeout (the POST query will be closed by wechat official server)
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time.sleep(1)
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# and do nothing
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return
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else:
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pass
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elif channel.query2.get(cache_key) == False:
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# The second query from wechat official server
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logger.debug("[wechatmp] query2 {}".format(cache_key))
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channel.query2[cache_key] = True
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cnt = 0
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while cache_key not in channel.cache_dict and cnt < 45:
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cnt = cnt + 1
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time.sleep(0.1)
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if cnt == 45:
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# waiting for timeout (the POST query will be closed by wechat official server)
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time.sleep(1)
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# and do nothing
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return
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else:
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pass
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elif channel.query3.get(cache_key) == False:
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# The third query from wechat official server
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logger.debug("[wechatmp] query3 {}".format(cache_key))
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channel.query3[cache_key] = True
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cnt = 0
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while cache_key not in channel.cache_dict and cnt < 40:
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cnt = cnt + 1
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time.sleep(0.1)
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if cnt == 40:
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# Have waiting for 3x5 seconds
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# return timeout message
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reply_text = "【正在思考中，回复任意文字尝试获取回复】"
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logger.info("[wechatmp] Three queries has finished For {}: {}".format(from_user, message_id))
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replyPost = reply.TextMsg(from_user, to_user, reply_text).send()
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return replyPost
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else:
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pass
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if float(time.time()) - float(query_time) > 4.8:
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reply_text = "【正在思考中，回复任意文字尝试获取回复】"
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logger.info("[wechatmp] Timeout for {} {}, return".format(from_user, message_id))
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replyPost = reply.TextMsg(from_user, to_user, reply_text).send()
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return replyPost
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if cache_key in channel.cache_dict:
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content = channel.cache_dict[cache_key]
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if len(content.encode('utf8'))<=MAX_UTF8_LEN:
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reply_text = channel.cache_dict[cache_key]
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channel.cache_dict.pop(cache_key)
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else:
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continue_text = "\n【未完待续，回复任意文字以继续】"
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splits = split_string_by_utf8_length(content, MAX_UTF8_LEN - len(continue_text.encode('utf-8')), max_split= 1)
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reply_text = splits[0] + continue_text
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channel.cache_dict[cache_key] = splits[1]
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logger.info("[wechatmp] {}:{} Do send {}".format(web.ctx.env.get('REMOTE_ADDR'), web.ctx.env.get('REMOTE_PORT'), reply_text))
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replyPost = reply.TextMsg(from_user, to_user, reply_text).send()
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return replyPost
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elif wechat_msg.msg_type == 'event':
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logger.info("[wechatmp] Event {} from {}".format(wechat_msg.content, wechat_msg.from_user_id))
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trigger_prefix = conf().get('single_chat_prefix',[''])[0]
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content = textwrap.dedent(f"""\
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感谢您的关注！
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这里是ChatGPT，可以自由对话。
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资源有限，回复较慢，请勿着急。
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支持通用表情输入。
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暂时不支持图片输入。
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支持图片输出，画字开头的问题将回复图片链接。
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支持角色扮演和文字冒险两种定制模式对话。
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输入'{trigger_prefix}#帮助' 查看详细指令。""")
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replyMsg = reply.TextMsg(wechat_msg.from_user_id, wechat_msg.to_user_id, content)
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return replyMsg.send()
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else:
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logger.info("暂且不处理")
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return "success"
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except Exception as exc:
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logger.exception(exc)
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return exc
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def split_string_by_utf8_length(string, max_length, max_split=0):
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encoded = string.encode('utf-8')
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start, end = 0, 0
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result = []
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while end < len(encoded):
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if max_split > 0 and len(result) >= max_split:
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result.append(encoded[start:].decode('utf-8'))
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break
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end = start + max_length
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# 如果当前字节不是 UTF-8 编码的开始字节，则向前查找直到找到开始字节为止
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while end < len(encoded) and (encoded[end] & 0b11000000) == 0b10000000:
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end -= 1
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result.append(encoded[start:end].decode('utf-8'))
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start = end
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return result |