dify-on-wechat/bot/chatgpt/chat_gpt_bot.py

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# encoding:utf-8
import base64
import time
import openai
import openai.error
import requests
from bot.bot import Bot
from bot.chatgpt.chat_gpt_session import ChatGPTSession
from bot.openai.open_ai_image import OpenAIImage
from bot.openai.open_ai_vision import OpenAIVision
from bot.session_manager import SessionManager
from bridge.context import ContextType
from bridge.reply import Reply, ReplyType
from common.log import logger
from common.token_bucket import TokenBucket
from common import memory, utils, const
from config import conf, load_config
# OpenAI对话模型API (可用)
class ChatGPTBot(Bot, OpenAIImage, OpenAIVision):
def __init__(self):
super().__init__()
# set the default api_key
openai.api_key = conf().get("open_ai_api_key")
if conf().get("open_ai_api_base"):
openai.api_base = conf().get("open_ai_api_base")
proxy = conf().get("proxy")
if proxy:
openai.proxy = proxy
if conf().get("rate_limit_chatgpt"):
self.tb4chatgpt = TokenBucket(conf().get("rate_limit_chatgpt", 20))
self.sessions = SessionManager(ChatGPTSession, model=conf().get("model") or "gpt-3.5-turbo")
self.args = {
"model": conf().get("model") or "gpt-3.5-turbo", # 对话模型的名称
"temperature": conf().get("temperature", 0.9), # 值在[0,1]之间,越大表示回复越具有不确定性
# "max_tokens":4096, # 回复最大的字符数
"top_p": conf().get("top_p", 1),
"frequency_penalty": conf().get("frequency_penalty", 0.0), # [-2,2]之间,该值越大则更倾向于产生不同的内容
"presence_penalty": conf().get("presence_penalty", 0.0), # [-2,2]之间,该值越大则更倾向于产生不同的内容
"request_timeout": conf().get("request_timeout", None), # 请求超时时间openai接口默认设置为600对于难问题一般需要较长时间
"timeout": conf().get("request_timeout", None), # 重试超时时间,在这个时间内,将会自动重试
}
def reply(self, query, context=None):
# acquire reply content
if context.type == ContextType.TEXT:
logger.info("[CHATGPT] query={}".format(query))
session_id = context["session_id"]
reply = None
clear_memory_commands = conf().get("clear_memory_commands", ["#清除记忆"])
if query in clear_memory_commands:
self.sessions.clear_session(session_id)
reply = Reply(ReplyType.INFO, "记忆已清除")
elif query == "#清除所有":
self.sessions.clear_all_session()
reply = Reply(ReplyType.INFO, "所有人记忆已清除")
elif query == "#更新配置":
load_config()
reply = Reply(ReplyType.INFO, "配置已更新")
if reply:
return reply
session = self.sessions.session_query(query, session_id)
logger.debug("[CHATGPT] session query={}".format(session.messages))
api_key = context.get("openai_api_key")
model = context.get("gpt_model")
new_args = None
if model:
new_args = self.args.copy()
new_args["model"] = model
# if context.get('stream'):
# # reply in stream
# return self.reply_text_stream(query, new_query, session_id)
reply_content = self.reply_text(session_id, session, api_key, args=new_args)
logger.debug(
"[CHATGPT] new_query={}, session_id={}, reply_cont={}, completion_tokens={}".format(
session.messages,
session_id,
reply_content["content"],
reply_content["completion_tokens"],
)
)
if reply_content["completion_tokens"] == 0 and len(reply_content["content"]) > 0:
reply = Reply(ReplyType.ERROR, reply_content["content"])
elif reply_content["completion_tokens"] > 0:
self.sessions.session_reply(reply_content["content"], session_id, reply_content["total_tokens"])
reply = Reply(ReplyType.TEXT, reply_content["content"])
else:
reply = Reply(ReplyType.ERROR, reply_content["content"])
logger.debug("[CHATGPT] reply {} used 0 tokens.".format(reply_content))
return reply
elif context.type == ContextType.IMAGE_CREATE:
ok, retstring = self.create_img(query, 0, context=context)
reply = None
if ok:
reply = Reply(ReplyType.IMAGE_URL, retstring)
else:
reply = Reply(ReplyType.ERROR, retstring)
return reply
else:
reply = Reply(ReplyType.ERROR, "Bot不支持处理{}类型的消息".format(context.type))
return reply
def reply_text(self, session_id: str, session: ChatGPTSession, api_key=None, args=None, retry_count=0) -> dict:
"""
call openai's ChatCompletion to get the answer
:param session: a conversation session
:param session_id: session id
:param retry_count: retry count
:return: {}
"""
try:
if conf().get("rate_limit_chatgpt") and not self.tb4chatgpt.get_token():
raise openai.error.RateLimitError("RateLimitError: rate limit exceeded")
# if api_key == None, the default openai.api_key will be used
if args is None:
args = self.args
res = self.do_vision_completion_if_need(session_id, session.messages[-1]['content'])
if res:
return res
response = openai.ChatCompletion.create(api_key=api_key, messages=session.messages, **args)
# logger.debug("[CHATGPT] response={}".format(response))
# logger.info("[ChatGPT] reply={}, total_tokens={}".format(response.choices[0]['message']['content'], response["usage"]["total_tokens"]))
content = response.choices[0]["message"]["content"]
# fastgpt工具调用格式处理
if isinstance(content, list):
# {
# "id": "",
# "model": "",
# "usage": {},
# "choices": [
# {
# "message": {
# "role": "assistant",
# "content": [
# {
# "type": "tool",
# "tools": [
# {
# "id": "xx",
# "toolName": "HTTP请求",
# "toolAvatar": "xx",
# "functionName": "xx",
# "params": "{\"key1\":\"xx\",\"key2\":\"xxx"}",
# "response": "xxx"
# }
# ]
# },
# {
# "type": "text",
# "text": {
# "content": "xxx"
# }
# }
# ]
# },
# "finish_reason": "stop",
# "index": 0
# }
# ]
# }
for item in content:
if item["type"] == "text":
content = item["text"]["content"]
break
return {
"total_tokens": response["usage"]["total_tokens"],
"completion_tokens": response["usage"]["completion_tokens"],
"content": content,
}
except Exception as e:
need_retry = retry_count < 2
result = {"completion_tokens": 0, "content": "我现在有点累了,等会再来吧"}
if isinstance(e, openai.error.RateLimitError):
logger.warn("[CHATGPT] RateLimitError: {}".format(e))
result["content"] = "提问太快啦,请休息一下再问我吧"
if need_retry:
time.sleep(20)
elif isinstance(e, openai.error.Timeout):
logger.warn("[CHATGPT] Timeout: {}".format(e))
result["content"] = "我没有收到你的消息"
if need_retry:
time.sleep(5)
elif isinstance(e, openai.error.APIError):
logger.warn("[CHATGPT] Bad Gateway: {}".format(e))
result["content"] = "请再问我一次"
if need_retry:
time.sleep(10)
elif isinstance(e, openai.error.APIConnectionError):
logger.warn("[CHATGPT] APIConnectionError: {}".format(e))
result["content"] = "我连接不到你的网络"
if need_retry:
time.sleep(5)
else:
logger.exception("[CHATGPT] Exception: {}".format(e))
need_retry = False
self.sessions.clear_session(session.session_id)
if need_retry:
logger.warn("[CHATGPT] 第{}次重试".format(retry_count + 1))
return self.reply_text(session_id, session, api_key, args, retry_count + 1)
else:
return result
class AzureChatGPTBot(ChatGPTBot):
def __init__(self):
super().__init__()
openai.api_type = "azure"
openai.api_version = conf().get("azure_api_version", "2023-06-01-preview")
self.args["deployment_id"] = conf().get("azure_deployment_id")
def create_img(self, query, retry_count=0, api_key=None):
api_version = "2022-08-03-preview"
url = "{}dalle/text-to-image?api-version={}".format(openai.api_base, api_version)
api_key = api_key or openai.api_key
headers = {"api-key": api_key, "Content-Type": "application/json"}
try:
body = {"caption": query, "resolution": conf().get("image_create_size", "256x256")}
submission = requests.post(url, headers=headers, json=body)
operation_location = submission.headers["Operation-Location"]
retry_after = submission.headers["Retry-after"]
status = ""
image_url = ""
while status != "Succeeded":
logger.info("waiting for image create..., " + status + ",retry after " + retry_after + " seconds")
time.sleep(int(retry_after))
response = requests.get(operation_location, headers=headers)
status = response.json()["status"]
image_url = response.json()["result"]["contentUrl"]
return True, image_url
except Exception as e:
logger.error("create image error: {}".format(e))
return False, "图片生成失败"