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from flask import Flask, request, make_response |
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import hashlib |
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import time |
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import xml.etree.ElementTree as ET |
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import os |
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import json |
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from openai import OpenAI |
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from dotenv import load_dotenv |
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from duckduckgo_search import DDGS |
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import smtplib |
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from email.mime.text import MIMEText |
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from email.mime.multipart import MIMEMultipart |
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load_dotenv() |
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app = Flask(__name__) |
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TOKEN = os.getenv('TOKEN') |
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API_KEY = os.getenv("API_KEY") |
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BASE_URL = os.getenv("OPENAI_BASE_URL") |
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EMAIL_KEY = os.getenv("EMAIL_KEY") |
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client = OpenAI(api_key=API_KEY, base_url=BASE_URL) |
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user_sessions = {} |
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FUNCTIONS = [ |
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{ |
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"name": "search_duckduckgo", |
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"description": "使用DuckDuckGo搜索引擎查询信息。可以搜索最新新闻、文章、博客等内容。", |
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"parameters": { |
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"type": "object", |
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"properties": { |
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"keywords": { |
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"type": "array", |
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"items": {"type": "string"}, |
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"description": "搜索的关键词列表。例如:['Python', '机器学习', '最新进展']。" |
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} |
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}, |
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"required": ["keywords"] |
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} |
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}, |
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{ |
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"name": "send_email", |
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"description": "发送电子邮件。", |
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"parameters": { |
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"type": "object", |
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"properties": { |
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"to": { |
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"type": "string", |
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"description": "收件人邮箱地址" |
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}, |
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"subject": { |
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"type": "string", |
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"description": "邮件主题" |
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}, |
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"content": { |
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"type": "string", |
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"description": "邮件内容" |
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} |
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}, |
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"required": ["to", "subject", "content"] |
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} |
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} |
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] |
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def verify_wechat(request): |
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data = request.args |
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signature = data.get('signature') |
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timestamp = data.get('timestamp') |
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nonce = data.get('nonce') |
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echostr = data.get('echostr') |
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temp = [timestamp, nonce, TOKEN] |
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temp.sort() |
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temp = ''.join(temp) |
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if (hashlib.sha1(temp.encode('utf8')).hexdigest() == signature): |
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return echostr |
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else: |
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return 'error', 403 |
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def getUserMessageContentFromXML(xml_content): |
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root = ET.fromstring(xml_content) |
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content = root.find('Content').text |
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from_user_name = root.find('FromUserName').text |
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to_user_name = root.find('ToUserName').text |
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return content, from_user_name, to_user_name |
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def generate_response_xml(from_user_name, to_user_name, output_content): |
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output_xml = ''' |
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<xml> |
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<ToUserName><![CDATA[%s]]></ToUserName> |
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<FromUserName><![CDATA[%s]]></FromUserName> |
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<CreateTime>%s</CreateTime> |
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<MsgType><![CDATA[text]]></MsgType> |
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<Content><![CDATA[%s]]></Content> |
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</xml>''' |
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response = make_response(output_xml % (from_user_name, to_user_name, str(int(time.time())), output_content)) |
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response.content_type = 'application/xml' |
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return response |
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def get_openai_response(messages, functions=None, function_call=None): |
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try: |
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response = client.chat.completions.create( |
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model="gpt-4o-mini", |
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messages=messages, |
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functions=functions, |
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function_call=function_call |
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) |
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return response.choices[0].message |
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except Exception as e: |
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print(f"调用OpenAI API时出错: {str(e)}") |
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return None |
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def split_message(message, max_length=500): |
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return [message[i:i+max_length] for i in range(0, len(message), max_length)] |
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def search_duckduckgo(keywords): |
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search_term = " ".join(keywords) |
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with DDGS() as ddgs: |
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return list(ddgs.text(keywords=search_term, region="cn-zh", safesearch="on", max_results=5)) |
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def send_email(to, subject, content): |
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try: |
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with smtplib.SMTP('106.15.184.28', 8025) as smtp: |
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smtp.login("jwt", EMAIL_KEY) |
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message = MIMEMultipart() |
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message['From'] = "Me <[email protected]>" |
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message['To'] = to |
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message['Subject'] = subject |
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message.attach(MIMEText(content, 'html')) |
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smtp.sendmail("[email protected]", to, message.as_string()) |
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return True |
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except Exception as e: |
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print(f"发送邮件时出错: {str(e)}") |
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return False |
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def process_function_call(response_message, session): |
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function_name = response_message.function_call.name |
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function_args = json.loads(response_message.function_call.arguments) |
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print(f"\n模型选择调用函数: {function_name}") |
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if function_name == "search_duckduckgo": |
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keywords = function_args.get('keywords', []) |
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if not keywords: |
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print("错误:模型没有提供搜索关键词") |
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return None |
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print(f"关键词: {', '.join(keywords)}") |
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return search_duckduckgo(keywords) |
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elif function_name == "send_email": |
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to = function_args.get('to') |
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subject = function_args.get('subject') |
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content = function_args.get('content') |
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if not session.get('email_sent', False): |
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if send_email(to, subject, content): |
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session['email_sent'] = True |
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return "邮件发送成功" |
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else: |
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return "邮件发送失败" |
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else: |
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return "邮件已经发送过,不再重复发送。" |
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else: |
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print(f"未知的函数名称: {function_name}") |
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return None |
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@app.route('/api/wx', methods=['GET', 'POST']) |
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def wechatai(): |
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if request.method == 'GET': |
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return verify_wechat(request) |
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else: |
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print("user request data: ", request.data) |
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user_message_content, from_user_name, to_user_name = getUserMessageContentFromXML(request.data) |
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print("user message content: ", user_message_content) |
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if from_user_name not in user_sessions: |
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user_sessions[from_user_name] = {'messages': [], 'pending_response': [], 'email_sent': False} |
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session = user_sessions[from_user_name] |
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if user_message_content.lower() == '继续': |
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if session['pending_response']: |
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response_content = session['pending_response'].pop(0) |
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if session['pending_response']: |
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response_content += '\n\n回复"继续"获取下一部分。' |
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else: |
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response_content += '\n\n回复结束。' |
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else: |
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response_content = "没有待发送的消息。" |
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else: |
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session['messages'].append({"role": "user", "content": user_message_content}) |
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response_message = get_openai_response(session['messages'], functions=FUNCTIONS, function_call="auto") |
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if response_message.function_call: |
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function_response = process_function_call(response_message, session) |
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if function_response: |
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session['messages'].extend([ |
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response_message.model_dump(), |
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{ |
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"role": "function", |
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"name": response_message.function_call.name, |
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"content": json.dumps(function_response, ensure_ascii=False) |
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} |
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]) |
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final_response = get_openai_response(session['messages']) |
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if final_response: |
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gpt_response = final_response.content |
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else: |
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gpt_response = "抱歉,我遇到了一些问题,无法回答您的问题。" |
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else: |
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gpt_response = "抱歉,我在执行任务时遇到了问题。" |
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else: |
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gpt_response = response_message.content |
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session['messages'].append({"role": "assistant", "content": gpt_response}) |
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response_parts = split_message(gpt_response) |
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if len(response_parts) > 1: |
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response_content = response_parts[0] + '\n\n回复"继续"获取下一部分。' |
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session['pending_response'] = response_parts[1:] |
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else: |
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response_content = response_parts[0] |
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return generate_response_xml(from_user_name, to_user_name, response_content) |
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if __name__ == '__main__': |
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app.run(host='0.0.0.0', port=7860, debug=True) |