hubian
34afe96055
- 端口从 19007+19008 合并为 19007 - 前台API: http://localhost:19007/v1/chat/completions - 后台管理: http://localhost:19007/admin - 新增 templates 目录，整合管理页面模板 - 更新所有路由为 /admin 路径 - 后台API统一到 /api/admin 路径下
1184 lines
39 KiB
Python
1184 lines
39 KiB
Python
"""
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||
大模型API中转系统
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v2.0.0 - 合并后台管理到单端口
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兼容OpenAI API格式，支持多上游提供商优先级调度
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端口: 19007
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前台API: http://localhost:19007/v1/chat/completions
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后台管理: http://localhost:19007/admin
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"""
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from flask import Flask, request, jsonify, Response, stream_with_context, render_template
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from flask_cors import CORS
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import requests
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import json
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import time
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import logging
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from datetime import datetime, date
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from pathlib import Path
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import sys
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import threading
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import uuid
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# 添加配置路径
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sys.path.insert(0, str(Path(__file__).parent))
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from config.settings import (
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get_providers, get_model_aliases, get_auto_profiles, SERVER_CONFIG,
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LOG_CONFIG, RETRY_CONFIG,
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load_config, save_config, get_provider, add_provider, update_provider,
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delete_provider, update_priority, update_model_alias,
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get_auto_profile, add_auto_profile, update_auto_profile, delete_auto_profile,
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DEFAULT_PROVIDERS, DEFAULT_MODEL_ALIASES, DEFAULT_AUTO_PROFILES
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)
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app = Flask(__name__, template_folder='templates')
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CORS(app)
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# 数据目录和统计文件
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DATA_DIR = Path(__file__).parent / 'data'
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DATA_DIR.mkdir(exist_ok=True)
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STATS_FILE = DATA_DIR / 'stats.json'
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CHATS_FILE = DATA_DIR / 'chats.json'
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LOGS_DIR = Path(__file__).parent / 'logs'
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LOGS_DIR.mkdir(exist_ok=True)
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# 统计锁（避免并发写入冲突）
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stats_lock = threading.Lock()
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# 提供商状态缓存
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provider_status = {}
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# 配置缓存时间（秒）
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CONFIG_CACHE_TTL = 5
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_last_config_load = 0
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_cached_providers = []
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_cached_aliases = {}
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_cached_auto_profiles = {}
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def load_stats():
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"""加载统计数据"""
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if STATS_FILE.exists():
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try:
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return json.loads(STATS_FILE.read_text(encoding='utf-8'))
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except:
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pass
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return {
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'total_requests': 0,
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'total_success': 0,
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'total_errors': 0,
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'total_tokens': 0,
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'requests_today': 0,
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'requests_by_model': {},
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'providers': {},
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'last_updated': None,
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'date': None
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}
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def save_stats(stats):
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"""保存统计数据"""
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stats['last_updated'] = datetime.now().isoformat()
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STATS_FILE.write_text(json.dumps(stats, ensure_ascii=False, indent=2), encoding='utf-8')
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def increment_stats(model, provider_name, success=False, tokens=0, error=None):
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"""增加统计计数"""
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with stats_lock:
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stats = load_stats()
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today = date.today().isoformat()
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if stats.get('date') != today:
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stats['date'] = today
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stats['requests_today'] = 0
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stats['total_requests'] += 1
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stats['requests_today'] += 1
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if model not in stats['requests_by_model']:
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stats['requests_by_model'][model] = {'count': 0, 'success': 0, 'tokens': 0}
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stats['requests_by_model'][model]['count'] += 1
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if success:
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stats['requests_by_model'][model]['success'] += 1
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stats['requests_by_model'][model]['tokens'] += tokens
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if provider_name not in stats['providers']:
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stats['providers'][provider_name] = {'requests': 0, 'success': 0, 'errors': 0, 'tokens': 0}
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stats['providers'][provider_name]['requests'] += 1
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if success:
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stats['providers'][provider_name]['success'] += 1
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stats['providers'][provider_name]['tokens'] += tokens
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stats['total_success'] += 1
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stats['total_tokens'] += tokens
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else:
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stats['providers'][provider_name]['errors'] += 1
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stats['total_errors'] += 1
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save_stats(stats)
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def refresh_config():
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"""动态刷新配置"""
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global _last_config_load, _cached_providers, _cached_aliases, _cached_auto_profiles, provider_status
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current_time = time.time()
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if current_time - _last_config_load > CONFIG_CACHE_TTL:
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_cached_providers = get_providers()
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_cached_aliases = get_model_aliases()
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_cached_auto_profiles = get_auto_profiles()
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_last_config_load = current_time
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for provider in _cached_providers:
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if provider['name'] not in provider_status:
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provider_status[provider['name']] = {
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'available': True,
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'last_check': None,
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'error_count': 0,
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'last_error': None,
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}
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def refresh_provider_status():
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"""刷新提供商状态"""
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providers = get_providers()
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for provider in providers:
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if provider['name'] not in provider_status:
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provider_status[provider['name']] = {
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'available': True,
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'last_check': None,
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'error_count': 0,
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'last_error': None,
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'request_count': 0,
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'success_count': 0,
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'total_tokens': 0,
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}
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def load_chats():
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"""加载对话数据"""
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if CHATS_FILE.exists():
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return json.loads(CHATS_FILE.read_text(encoding='utf-8'))
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return {'chats': []}
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def save_chats(data):
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"""保存对话数据"""
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CHATS_FILE.write_text(json.dumps(data, ensure_ascii=False, indent=2), encoding='utf-8')
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# 配置日志
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logging.basicConfig(
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level=logging.INFO,
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format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
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handlers=[
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logging.FileHandler(LOGS_DIR / 'proxy.log', encoding='utf-8'),
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logging.StreamHandler()
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]
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)
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logger = logging.getLogger(__name__)
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# 初始化
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refresh_config()
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# ============ 提供商选择逻辑 ============
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def get_provider_for_model(model_name):
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"""根据模型名获取提供商"""
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refresh_config()
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resolved_model = _cached_aliases.get(model_name, model_name)
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if resolved_model == 'auto' or resolved_model.startswith('auto-'):
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return get_available_provider_for_auto(resolved_model)
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sorted_providers = sorted(_cached_providers, key=lambda x: x['priority'])
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for provider in sorted_providers:
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if not provider['enabled']:
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continue
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if not provider_status.get(provider['name'], {}).get('available', True):
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continue
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if resolved_model in provider['models']:
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return provider, resolved_model
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for provider in sorted_providers:
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if not provider['enabled']:
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continue
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if not provider_status.get(provider['name'], {}).get('available', True):
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continue
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for m in provider['models']:
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if resolved_model.lower() in m.lower() or m.lower() in resolved_model.lower():
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return provider, m
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return None, None
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def get_available_provider_for_auto(auto_name='auto', exclude_providers=None):
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"""获取auto模式下的可用提供商"""
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refresh_config()
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exclude_providers = exclude_providers or []
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profile = _cached_auto_profiles.get(auto_name, _cached_auto_profiles.get('auto', {}))
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allowed_providers = profile.get('providers', ['*'])
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sorted_providers = sorted(_cached_providers, key=lambda x: x['priority'])
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candidates = []
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for provider in sorted_providers:
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if not provider['enabled']:
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continue
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if provider['name'] in exclude_providers:
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continue
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if not provider_status.get(provider['name'], {}).get('available', True):
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continue
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if '*' in allowed_providers:
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candidates.append(provider)
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elif provider.get('id') in allowed_providers or provider['name'] in allowed_providers:
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candidates.append(provider)
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if not candidates:
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if sorted_providers:
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return sorted_providers[0], sorted_providers[0]['default_model']
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return None, None
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return candidates[0], candidates[0]['default_model']
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def mark_provider_error(provider_name, error):
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"""标记提供商错误"""
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if provider_name in provider_status:
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provider_status[provider_name]['error_count'] += 1
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provider_status[provider_name]['last_error'] = str(error)
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provider_status[provider_name]['last_check'] = datetime.now()
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if provider_status[provider_name]['error_count'] >= 3:
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provider_status[provider_name]['available'] = False
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logger.warning(f"Provider {provider_name} marked as unavailable")
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def mark_provider_success(provider_name):
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"""标记提供商成功"""
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if provider_name in provider_status:
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provider_status[provider_name]['error_count'] = 0
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provider_status[provider_name]['available'] = True
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provider_status[provider_name]['last_check'] = datetime.now()
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def proxy_request(provider, model, request_data, stream=False):
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"""转发请求到上游提供商"""
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url = f"{provider['base_url'].rstrip('/')}/chat/completions"
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headers = {
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"Content-Type": "application/json",
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"Authorization": f"Bearer {provider['api_key']}"
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}
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data = request_data.copy()
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data['model'] = model
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try:
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if stream:
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response = requests.post(url, headers=headers, json=data, stream=True, timeout=provider.get('timeout', 120))
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return response
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else:
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response = requests.post(url, headers=headers, json=data, timeout=provider.get('timeout', 120))
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return response
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except requests.exceptions.Timeout:
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mark_provider_error(provider['name'], "Timeout")
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raise Exception(f"Provider {provider['name']} timeout")
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except requests.exceptions.ConnectionError:
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mark_provider_error(provider['name'], "Connection error")
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raise Exception(f"Provider {provider['name']} connection error")
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except Exception as e:
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mark_provider_error(provider['name'], str(e))
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raise
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def stream_response(response):
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"""流式响应生成器"""
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try:
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for line in response.iter_lines():
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if line:
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yield line + b'\n'
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except Exception as e:
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logger.error(f"Stream error: {e}")
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yield b'data: {"error": "' + str(e).encode() + b'"}\n\n'
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# ============ 前台 API 路由 ============
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||
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@app.route('/')
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def index():
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"""首页"""
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return jsonify({
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||
"name": "LLM Proxy",
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"version": "2.0.0",
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"description": "OpenAI-compatible LLM API Proxy",
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"endpoints": {
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"chat": "/v1/chat/completions",
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"models": "/v1/models",
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"embeddings": "/v1/embeddings",
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||
"health": "/health",
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"status": "/status",
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"admin": "/admin"
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||
}
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})
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||
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@app.route('/v1/models', methods=['GET'])
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def list_models():
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"""列出可用模型"""
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refresh_config()
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models_list = []
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added_models = set()
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||
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||
for profile_name, profile in _cached_auto_profiles.items():
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||
if profile_name not in added_models:
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||
models_list.append({
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||
"id": profile_name,
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||
"object": "model",
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||
"created": int(time.time()),
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"owned_by": "proxy",
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||
"description": profile.get('description', 'Auto-select available model')
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||
})
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added_models.add(profile_name)
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||
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||
for provider in _cached_providers:
|
||
if not provider['enabled']:
|
||
continue
|
||
for model in provider['models']:
|
||
if model not in added_models:
|
||
models_list.append({
|
||
"id": model,
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||
"object": "model",
|
||
"created": int(time.time()),
|
||
"owned_by": provider['name'],
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||
})
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||
added_models.add(model)
|
||
|
||
return jsonify({"object": "list", "data": models_list})
|
||
|
||
|
||
@app.route('/v1/chat/completions', methods=['POST'])
|
||
def chat_completions():
|
||
"""聊天完成API"""
|
||
request_model = None
|
||
request_provider = None
|
||
request_success = False
|
||
request_tokens = 0
|
||
|
||
try:
|
||
data = request.get_json()
|
||
|
||
if not data:
|
||
increment_stats('unknown', 'unknown', success=False, error='Invalid request body')
|
||
return jsonify({"error": "Invalid request body"}), 400
|
||
|
||
model = data.get('model', 'auto')
|
||
stream = data.get('stream', False)
|
||
request_model = model
|
||
|
||
provider, resolved_model = get_provider_for_model(model)
|
||
|
||
if not provider:
|
||
increment_stats(model, 'unknown', success=False, error=f'No provider for model: {model}')
|
||
return jsonify({"error": {"message": f"No available provider for model: {model}", "type": "invalid_request_error"}}), 400
|
||
|
||
request_provider = provider['name']
|
||
logger.info(f"Request: model={model} -> provider={provider['name']}, resolved_model={resolved_model}, stream={stream}")
|
||
|
||
last_error = None
|
||
tried_providers = []
|
||
|
||
for attempt in range(RETRY_CONFIG['max_retries']):
|
||
try:
|
||
response = proxy_request(provider, resolved_model, data, stream)
|
||
|
||
if response.status_code == 200:
|
||
mark_provider_success(provider['name'])
|
||
request_success = True
|
||
|
||
if stream:
|
||
increment_stats(model, provider['name'], success=True, tokens=0)
|
||
return Response(
|
||
stream_with_context(stream_response(response)),
|
||
content_type='text/event-stream',
|
||
headers={'Cache-Control': 'no-cache', 'Connection': 'keep-alive'}
|
||
)
|
||
else:
|
||
result = response.json()
|
||
usage = result.get('usage', {})
|
||
request_tokens = usage.get('total_tokens', 0)
|
||
increment_stats(model, provider['name'], success=True, tokens=request_tokens)
|
||
return jsonify(result)
|
||
|
||
else:
|
||
error_info = response.json() if response.headers.get('content-type', '').startswith('application/json') else {"error": response.text}
|
||
last_error = error_info
|
||
logger.warning(f"Provider {provider['name']} returned {response.status_code}: {error_info}")
|
||
mark_provider_error(provider['name'], f"HTTP {response.status_code}")
|
||
tried_providers.append(provider['name'])
|
||
|
||
next_provider, next_model = get_available_provider_for_auto('auto', exclude_providers=tried_providers)
|
||
if next_provider and next_provider['name'] not in tried_providers:
|
||
logger.info(f"Switching to next provider: {next_provider['name']}")
|
||
provider = next_provider
|
||
resolved_model = next_model
|
||
request_provider = provider['name']
|
||
time.sleep(RETRY_CONFIG['retry_delay'])
|
||
continue
|
||
|
||
increment_stats(model, provider['name'], success=False, error=str(last_error))
|
||
return jsonify(error_info), response.status_code
|
||
|
||
except Exception as e:
|
||
last_error = str(e)
|
||
logger.error(f"Attempt {attempt + 1} failed: {e}")
|
||
tried_providers.append(provider['name'])
|
||
|
||
next_provider, next_model = get_available_provider_for_auto('auto', exclude_providers=tried_providers)
|
||
if next_provider and next_provider['name'] not in tried_providers:
|
||
provider = next_provider
|
||
resolved_model = next_model
|
||
request_provider = provider['name']
|
||
time.sleep(RETRY_CONFIG['retry_delay'])
|
||
continue
|
||
|
||
increment_stats(model, request_provider or 'unknown', success=False, error=str(last_error))
|
||
return jsonify({"error": {"message": f"All providers failed. Last error: {last_error}", "type": "api_error"}}), 503
|
||
|
||
except Exception as e:
|
||
logger.error(f"Unexpected error: {e}")
|
||
increment_stats(request_model or 'unknown', request_provider or 'unknown', success=False, error=str(e))
|
||
return jsonify({"error": {"message": str(e), "type": "internal_error"}}), 500
|
||
|
||
|
||
@app.route('/v1/embeddings', methods=['POST'])
|
||
def embeddings():
|
||
"""嵌入API"""
|
||
refresh_config()
|
||
|
||
try:
|
||
data = request.get_json()
|
||
|
||
if _cached_providers:
|
||
provider = _cached_providers[0]
|
||
url = f"{provider['base_url'].rstrip('/')}/embeddings"
|
||
headers = {"Content-Type": "application/json", "Authorization": f"Bearer {provider['api_key']}"}
|
||
response = requests.post(url, headers=headers, json=data, timeout=60)
|
||
return jsonify(response.json()), response.status_code
|
||
else:
|
||
return jsonify({"error": "No providers available"}), 503
|
||
except Exception as e:
|
||
return jsonify({"error": str(e)}), 500
|
||
|
||
|
||
@app.route('/health', methods=['GET'])
|
||
def health():
|
||
"""健康检查"""
|
||
available_count = sum(1 for s in provider_status.values() if s['available'])
|
||
total_count = len(provider_status)
|
||
|
||
return jsonify({
|
||
"status": "healthy" if available_count > 0 else "degraded",
|
||
"providers": {"available": available_count, "total": total_count},
|
||
"timestamp": datetime.now().isoformat()
|
||
})
|
||
|
||
|
||
@app.route('/status', methods=['GET'])
|
||
def status():
|
||
"""详细状态"""
|
||
refresh_config()
|
||
|
||
providers_detail = []
|
||
for provider in _cached_providers:
|
||
status_info = provider_status.get(provider['name'], {})
|
||
providers_detail.append({
|
||
"name": provider['name'],
|
||
"priority": provider['priority'],
|
||
"enabled": provider['enabled'],
|
||
"available": status_info.get('available', True),
|
||
"error_count": status_info.get('error_count', 0),
|
||
"last_error": status_info.get('last_error'),
|
||
"models": provider['models'],
|
||
})
|
||
|
||
return jsonify({
|
||
"version": "2.0.0",
|
||
"uptime": time.time(),
|
||
"providers": providers_detail,
|
||
"model_aliases": _cached_aliases,
|
||
})
|
||
|
||
|
||
# 兼容旧版端点
|
||
@app.route('/v1/engines', methods=['GET'])
|
||
def list_engines():
|
||
return list_models()
|
||
|
||
|
||
@app.route('/v1/engines/<model>/completions', methods=['POST'])
|
||
def engine_completions(model):
|
||
data = request.get_json()
|
||
data['model'] = model
|
||
return chat_completions()
|
||
|
||
|
||
# ============ 后台管理页面路由 ============
|
||
|
||
@app.route('/admin')
|
||
def admin_index():
|
||
return render_template('index.html')
|
||
|
||
|
||
@app.route('/admin/providers')
|
||
def admin_providers():
|
||
return render_template('providers.html')
|
||
|
||
|
||
@app.route('/admin/models')
|
||
def admin_models():
|
||
return render_template('models.html')
|
||
|
||
|
||
@app.route('/admin/logs')
|
||
def admin_logs():
|
||
return render_template('logs.html')
|
||
|
||
|
||
@app.route('/admin/config')
|
||
def admin_config():
|
||
return render_template('config.html')
|
||
|
||
|
||
@app.route('/admin/chat')
|
||
def admin_chat():
|
||
return render_template('chat.html')
|
||
|
||
|
||
@app.route('/admin/auto-profiles')
|
||
def admin_auto_profiles():
|
||
return render_template('auto-profiles.html')
|
||
|
||
|
||
# ============ 后台管理 API 路由 ============
|
||
|
||
@app.route('/api/admin/stats')
|
||
def api_admin_stats():
|
||
"""获取统计数据"""
|
||
stats = load_stats()
|
||
providers = get_providers()
|
||
refresh_provider_status()
|
||
|
||
available_count = sum(1 for p in providers if provider_status.get(p['name'], {}).get('available', True))
|
||
|
||
return jsonify({
|
||
'total_requests': stats.get('total_requests', 0),
|
||
'total_success': stats.get('total_success', 0),
|
||
'total_errors': stats.get('total_errors', 0),
|
||
'total_tokens': stats.get('total_tokens', 0),
|
||
'providers_count': len(providers),
|
||
'available_providers': available_count,
|
||
'models_count': len(get_model_aliases()),
|
||
'uptime': time.time(),
|
||
})
|
||
|
||
|
||
@app.route('/api/admin/providers')
|
||
def api_admin_providers():
|
||
"""获取提供商列表"""
|
||
providers = get_providers()
|
||
refresh_provider_status()
|
||
stats = load_stats()
|
||
providers_data = []
|
||
|
||
for provider in sorted(providers, key=lambda x: x['priority']):
|
||
p_stats = stats.get('providers', {}).get(provider['name'], {})
|
||
p_status = provider_status.get(provider['name'], {})
|
||
|
||
providers_data.append({
|
||
'id': provider.get('id', provider['name'].lower().replace(' ', '-')),
|
||
'name': provider['name'],
|
||
'priority': provider['priority'],
|
||
'enabled': provider['enabled'],
|
||
'available': p_status.get('available', True),
|
||
'base_url': provider['base_url'],
|
||
'api_key': provider['api_key'],
|
||
'models': provider['models'],
|
||
'default_model': provider['default_model'],
|
||
'timeout': provider.get('timeout', 120),
|
||
'request_count': p_stats.get('requests', 0),
|
||
'success_count': p_stats.get('success', 0),
|
||
'error_count': p_status.get('error_count', 0),
|
||
'last_error': p_status.get('last_error'),
|
||
'last_check': p_status.get('last_check'),
|
||
})
|
||
|
||
return jsonify(providers_data)
|
||
|
||
|
||
@app.route('/api/admin/providers/<provider_id>', methods=['GET'])
|
||
def api_admin_provider_detail(provider_id):
|
||
"""获取提供商详情"""
|
||
provider = get_provider(provider_id)
|
||
|
||
if not provider:
|
||
return jsonify({'error': 'Provider not found'}), 404
|
||
|
||
stats = load_stats()
|
||
p_stats = stats.get('providers', {}).get(provider['name'], {})
|
||
p_status = provider_status.get(provider['name'], {})
|
||
|
||
return jsonify({
|
||
**provider,
|
||
'status': {
|
||
'available': p_status.get('available', True),
|
||
'error_count': p_status.get('error_count', 0),
|
||
'last_error': p_status.get('last_error'),
|
||
'request_count': p_stats.get('requests', 0),
|
||
'success_count': p_stats.get('success', 0),
|
||
}
|
||
})
|
||
|
||
|
||
@app.route('/api/admin/providers', methods=['POST'])
|
||
def api_admin_add_provider():
|
||
"""添加新提供商"""
|
||
data = request.get_json()
|
||
|
||
if not data:
|
||
return jsonify({'error': 'Invalid request body'}), 400
|
||
|
||
required = ['name', 'base_url', 'api_key', 'models']
|
||
for field in required:
|
||
if not data.get(field):
|
||
return jsonify({'error': f'Missing required field: {field}'}), 400
|
||
|
||
providers = get_providers()
|
||
max_priority = max([p['priority'] for p in providers]) if providers else 0
|
||
|
||
new_provider = {
|
||
'id': data.get('id') or data['name'].lower().replace(' ', '-').replace('.', '-'),
|
||
'name': data['name'],
|
||
'priority': data.get('priority', max_priority + 1),
|
||
'base_url': data['base_url'].rstrip('/'),
|
||
'api_key': data['api_key'],
|
||
'models': data['models'] if isinstance(data['models'], list) else data['models'].split(','),
|
||
'default_model': data.get('default_model', data['models'][0] if isinstance(data['models'], list) else data['models'].split(',')[0]),
|
||
'timeout': data.get('timeout', 120),
|
||
'enabled': data.get('enabled', True),
|
||
}
|
||
|
||
result = add_provider(new_provider)
|
||
|
||
provider_status[result['name']] = {
|
||
'available': True,
|
||
'last_check': None,
|
||
'error_count': 0,
|
||
'last_error': None,
|
||
}
|
||
|
||
return jsonify({'success': True, 'provider': result})
|
||
|
||
|
||
@app.route('/api/admin/providers/<provider_id>', methods=['PUT'])
|
||
def api_admin_update_provider(provider_id):
|
||
"""更新提供商"""
|
||
data = request.get_json()
|
||
|
||
if not data:
|
||
return jsonify({'error': 'Invalid request body'}), 400
|
||
|
||
if 'models' in data and isinstance(data['models'], str):
|
||
data['models'] = [m.strip() for m in data['models'].split(',') if m.strip()]
|
||
|
||
result = update_provider(provider_id, data)
|
||
|
||
if not result:
|
||
return jsonify({'error': 'Provider not found'}), 404
|
||
|
||
return jsonify({'success': True, 'provider': result})
|
||
|
||
|
||
@app.route('/api/admin/providers/<provider_id>', methods=['DELETE'])
|
||
def api_admin_delete_provider(provider_id):
|
||
"""删除提供商"""
|
||
result = delete_provider(provider_id)
|
||
|
||
if not result:
|
||
return jsonify({'error': 'Provider not found'}), 404
|
||
|
||
providers = get_providers()
|
||
for p in providers:
|
||
if p.get('id') == provider_id:
|
||
if p['name'] in provider_status:
|
||
del provider_status[p['name']]
|
||
break
|
||
|
||
return jsonify({'success': True})
|
||
|
||
|
||
@app.route('/api/admin/providers/priority', methods=['POST'])
|
||
def api_admin_update_priority():
|
||
"""更新优先级顺序"""
|
||
data = request.get_json()
|
||
|
||
if not data or 'order' not in data:
|
||
return jsonify({'error': 'Missing order field'}), 400
|
||
|
||
provider_ids = data['order']
|
||
result = update_priority(provider_ids)
|
||
|
||
return jsonify({'success': True, 'providers': result})
|
||
|
||
|
||
@app.route('/api/admin/providers/<provider_id>/toggle', methods=['POST'])
|
||
def api_admin_toggle_provider(provider_id):
|
||
"""切换提供商启用状态"""
|
||
provider = get_provider(provider_id)
|
||
|
||
if not provider:
|
||
return jsonify({'error': 'Provider not found'}), 404
|
||
|
||
new_enabled = not provider.get('enabled', True)
|
||
result = update_provider(provider_id, {'enabled': new_enabled})
|
||
|
||
return jsonify({'success': True, 'enabled': new_enabled})
|
||
|
||
|
||
@app.route('/api/admin/providers/<provider_id>/test', methods=['POST'])
|
||
def api_admin_test_provider(provider_id):
|
||
"""测试提供商连接"""
|
||
provider = get_provider(provider_id)
|
||
|
||
if not provider:
|
||
return jsonify({'success': False, 'error': 'Provider not found'}), 404
|
||
|
||
try:
|
||
url = f"{provider['base_url'].rstrip('/')}/models"
|
||
headers = {"Authorization": f"Bearer {provider['api_key']}"}
|
||
|
||
response = requests.get(url, headers=headers, timeout=10)
|
||
|
||
if response.status_code == 200:
|
||
provider_status[provider['name']] = {
|
||
'available': True,
|
||
'last_check': datetime.now().isoformat(),
|
||
'error_count': 0,
|
||
'last_error': None,
|
||
}
|
||
models_data = []
|
||
try:
|
||
resp_json = response.json()
|
||
models_data = resp_json.get('data', [])
|
||
except:
|
||
pass
|
||
|
||
return jsonify({'success': True, 'message': 'Connection successful', 'models_count': len(models_data)})
|
||
else:
|
||
provider_status[provider['name']] = {
|
||
'available': False,
|
||
'last_check': datetime.now().isoformat(),
|
||
'error_count': provider_status.get(provider['name'], {}).get('error_count', 0) + 1,
|
||
'last_error': f'HTTP {response.status_code}',
|
||
}
|
||
return jsonify({'success': False, 'error': f'HTTP {response.status_code}: {response.text[:200]}'})
|
||
|
||
except Exception as e:
|
||
provider_status[provider['name']] = {
|
||
'available': False,
|
||
'last_check': datetime.now().isoformat(),
|
||
'error_count': provider_status.get(provider['name'], {}).get('error_count', 0) + 1,
|
||
'last_error': str(e),
|
||
}
|
||
return jsonify({'success': False, 'error': str(e)})
|
||
|
||
|
||
@app.route('/api/admin/models')
|
||
def api_admin_models():
|
||
"""获取模型列表"""
|
||
providers = get_providers()
|
||
aliases = get_model_aliases()
|
||
|
||
models_list = []
|
||
added = set()
|
||
|
||
models_list.append({'alias': 'auto', 'target': 'auto', 'description': '自动选择可用模型'})
|
||
added.add('auto')
|
||
|
||
for provider in sorted(providers, key=lambda x: x['priority']):
|
||
for model in provider['models']:
|
||
if model not in added:
|
||
models_list.append({
|
||
'alias': model,
|
||
'target': model,
|
||
'provider': provider['name'],
|
||
'priority': provider['priority'],
|
||
})
|
||
added.add(model)
|
||
|
||
for alias, target in aliases.items():
|
||
if alias != 'auto' and alias not in added:
|
||
provider_name = None
|
||
for p in providers:
|
||
if target in p['models']:
|
||
provider_name = p['name']
|
||
break
|
||
models_list.append({'alias': alias, 'target': target, 'provider': provider_name})
|
||
|
||
return jsonify(models_list)
|
||
|
||
|
||
@app.route('/api/admin/logs')
|
||
def api_admin_logs():
|
||
"""获取日志"""
|
||
log_file = LOGS_DIR / 'proxy.log'
|
||
|
||
lines = []
|
||
if log_file.exists():
|
||
content = log_file.read_text(encoding='utf-8')
|
||
lines = content.strip().split('\n')[-100:]
|
||
|
||
return jsonify({'logs': lines, 'total_lines': len(lines)})
|
||
|
||
|
||
@app.route('/api/admin/config')
|
||
def api_admin_config():
|
||
"""获取配置"""
|
||
providers = get_providers()
|
||
aliases = get_model_aliases()
|
||
|
||
return jsonify({
|
||
'providers': [{
|
||
'id': p.get('id', p['name'].lower().replace(' ', '-')),
|
||
'name': p['name'],
|
||
'priority': p['priority'],
|
||
'base_url': p['base_url'],
|
||
'models': p['models'],
|
||
'timeout': p.get('timeout', 120),
|
||
'enabled': p['enabled'],
|
||
} for p in providers],
|
||
'model_aliases': aliases,
|
||
'retry_config': RETRY_CONFIG,
|
||
'server_config': {'port': SERVER_CONFIG['port']}
|
||
})
|
||
|
||
|
||
# ============ Auto配置管理 ============
|
||
|
||
@app.route('/api/admin/auto-profiles')
|
||
def api_admin_auto_profiles():
|
||
"""获取所有Auto配置"""
|
||
profiles = get_auto_profiles()
|
||
providers = get_providers()
|
||
|
||
result = []
|
||
for name, profile in profiles.items():
|
||
allowed_providers = profile.get('providers', ['*'])
|
||
provider_details = []
|
||
|
||
if '*' in allowed_providers:
|
||
provider_details = [{'id': '*', 'name': '所有启用的提供商'}]
|
||
else:
|
||
for p in providers:
|
||
if p.get('id') in allowed_providers or p['name'] in allowed_providers:
|
||
provider_details.append({'id': p.get('id'), 'name': p['name'], 'priority': p['priority']})
|
||
|
||
result.append({
|
||
'name': name,
|
||
'display_name': profile.get('name', name),
|
||
'description': profile.get('description', ''),
|
||
'strategy': profile.get('strategy', 'priority'),
|
||
'providers': allowed_providers,
|
||
'provider_details': provider_details,
|
||
})
|
||
|
||
return jsonify(result)
|
||
|
||
|
||
@app.route('/api/admin/auto-profiles/<profile_name>', methods=['GET'])
|
||
def api_admin_auto_profile_detail(profile_name):
|
||
"""获取单个Auto配置详情"""
|
||
profile = get_auto_profile(profile_name)
|
||
|
||
if not profile:
|
||
return jsonify({'error': 'Profile not found'}), 404
|
||
|
||
providers = get_providers()
|
||
allowed_providers = profile.get('providers', ['*'])
|
||
provider_details = []
|
||
|
||
if '*' in allowed_providers:
|
||
provider_details = [{'id': '*', 'name': '所有启用的提供商', 'selected': True}]
|
||
for p in providers:
|
||
provider_details.append({'id': p.get('id'), 'name': p['name'], 'priority': p['priority'], 'selected': True})
|
||
else:
|
||
for p in providers:
|
||
selected = p.get('id') in allowed_providers or p['name'] in allowed_providers
|
||
provider_details.append({'id': p.get('id'), 'name': p['name'], 'priority': p['priority'], 'selected': selected})
|
||
|
||
return jsonify({
|
||
'name': profile_name,
|
||
'display_name': profile.get('name', profile_name),
|
||
'description': profile.get('description', ''),
|
||
'strategy': profile.get('strategy', 'priority'),
|
||
'providers': allowed_providers,
|
||
'provider_details': provider_details,
|
||
})
|
||
|
||
|
||
@app.route('/api/admin/auto-profiles', methods=['POST'])
|
||
def api_admin_add_auto_profile():
|
||
"""添加新的Auto配置"""
|
||
data = request.get_json()
|
||
|
||
if not data or not data.get('name'):
|
||
return jsonify({'error': 'Missing profile name'}), 400
|
||
|
||
profile_name = data['name'].lower().replace(' ', '-').replace('.', '-')
|
||
|
||
if profile_name in get_auto_profiles():
|
||
return jsonify({'error': 'Profile already exists'}), 400
|
||
|
||
profile_data = {
|
||
'name': data.get('display_name', data['name']),
|
||
'description': data.get('description', ''),
|
||
'providers': data.get('providers', ['*']),
|
||
'strategy': data.get('strategy', 'priority'),
|
||
}
|
||
|
||
result = add_auto_profile(profile_name, profile_data)
|
||
|
||
return jsonify({'success': True, 'profile': {profile_name: profile_data}})
|
||
|
||
|
||
@app.route('/api/admin/auto-profiles/<profile_name>', methods=['PUT'])
|
||
def api_admin_update_auto_profile(profile_name):
|
||
"""更新Auto配置"""
|
||
data = request.get_json()
|
||
|
||
if not data:
|
||
return jsonify({'error': 'Invalid request body'}), 400
|
||
|
||
profile_data = {}
|
||
if 'display_name' in data:
|
||
profile_data['name'] = data['display_name']
|
||
if 'description' in data:
|
||
profile_data['description'] = data['description']
|
||
if 'providers' in data:
|
||
profile_data['providers'] = data['providers']
|
||
if 'strategy' in data:
|
||
profile_data['strategy'] = data['strategy']
|
||
|
||
result = update_auto_profile(profile_name, profile_data)
|
||
|
||
if not result:
|
||
return jsonify({'error': 'Profile not found'}), 404
|
||
|
||
return jsonify({'success': True, 'profile': result})
|
||
|
||
|
||
@app.route('/api/admin/auto-profiles/<profile_name>', methods=['DELETE'])
|
||
def api_admin_delete_auto_profile(profile_name):
|
||
"""删除Auto配置"""
|
||
result = delete_auto_profile(profile_name)
|
||
|
||
if not result:
|
||
return jsonify({'error': 'Cannot delete default auto profile or profile not found'}), 400
|
||
|
||
return jsonify({'success': True})
|
||
|
||
|
||
# ============ 对话功能 ============
|
||
|
||
@app.route('/api/admin/chat/models')
|
||
def api_admin_chat_models():
|
||
"""获取可用模型列表"""
|
||
providers = get_providers()
|
||
profiles = get_auto_profiles()
|
||
|
||
models = []
|
||
added = set()
|
||
|
||
for name, profile in profiles.items():
|
||
if name not in added:
|
||
models.append({'id': name, 'description': profile.get('description', 'Auto-select')})
|
||
added.add(name)
|
||
|
||
for provider in providers:
|
||
if not provider['enabled']:
|
||
continue
|
||
for model in provider['models']:
|
||
if model not in added:
|
||
models.append({'id': model, 'description': provider['name']})
|
||
added.add(model)
|
||
|
||
return jsonify(models)
|
||
|
||
|
||
@app.route('/api/admin/chat/list')
|
||
def api_admin_chat_list():
|
||
"""获取对话列表"""
|
||
data = load_chats()
|
||
|
||
chats = []
|
||
for chat in data.get('chats', []):
|
||
chats.append({
|
||
'id': chat['id'],
|
||
'title': chat.get('title', '新对话'),
|
||
'model': chat.get('model', 'auto'),
|
||
'message_count': len(chat.get('messages', [])),
|
||
'created_at': chat.get('created_at'),
|
||
'updated_at': chat.get('updated_at')
|
||
})
|
||
|
||
chats.sort(key=lambda x: x.get('updated_at', ''), reverse=True)
|
||
|
||
return jsonify(chats)
|
||
|
||
|
||
@app.route('/api/admin/chat/<chat_id>')
|
||
def api_admin_chat_detail(chat_id):
|
||
"""获取对话详情"""
|
||
data = load_chats()
|
||
|
||
for chat in data.get('chats', []):
|
||
if chat['id'] == chat_id:
|
||
return jsonify(chat)
|
||
|
||
return jsonify({'error': 'Chat not found'}), 404
|
||
|
||
|
||
@app.route('/api/admin/chat/send', methods=['POST'])
|
||
def api_admin_chat_send():
|
||
"""发送消息"""
|
||
req = request.get_json()
|
||
|
||
user_message = req.get('message', '')
|
||
model = req.get('model', 'auto')
|
||
chat_id = req.get('chat_id')
|
||
|
||
if not user_message:
|
||
return jsonify({'error': 'Message is required'}), 400
|
||
|
||
data = load_chats()
|
||
|
||
chat = None
|
||
if chat_id:
|
||
for c in data['chats']:
|
||
if c['id'] == chat_id:
|
||
chat = c
|
||
break
|
||
|
||
if not chat:
|
||
chat_id = str(uuid.uuid4())[:8]
|
||
chat = {
|
||
'id': chat_id,
|
||
'title': '新对话',
|
||
'model': model,
|
||
'messages': [],
|
||
'created_at': datetime.now().isoformat(),
|
||
'updated_at': datetime.now().isoformat()
|
||
}
|
||
data['chats'].append(chat)
|
||
|
||
chat['messages'].append({
|
||
'role': 'user',
|
||
'content': user_message,
|
||
'time': datetime.now().isoformat()
|
||
})
|
||
|
||
try:
|
||
proxy_url = f"http://localhost:{SERVER_CONFIG['port']}/v1/chat/completions"
|
||
|
||
messages = []
|
||
for msg in chat['messages'][-20:]:
|
||
messages.append({'role': msg['role'], 'content': msg['content']})
|
||
|
||
response = requests.post(proxy_url, json={
|
||
'model': model,
|
||
'messages': messages,
|
||
'stream': False
|
||
}, timeout=120)
|
||
|
||
if response.status_code == 200:
|
||
result = response.json()
|
||
assistant_message = result['choices'][0]['message']['content']
|
||
used_model = result.get('model', model)
|
||
|
||
chat['messages'].append({
|
||
'role': 'assistant',
|
||
'content': assistant_message,
|
||
'model': used_model,
|
||
'time': datetime.now().isoformat()
|
||
})
|
||
|
||
if len(chat['messages']) == 2:
|
||
chat['title'] = user_message[:30] + ('...' if len(user_message) > 30 else '')
|
||
|
||
chat['updated_at'] = datetime.now().isoformat()
|
||
save_chats(data)
|
||
|
||
return jsonify({
|
||
'success': True,
|
||
'chat_id': chat_id,
|
||
'response': assistant_message,
|
||
'model': used_model,
|
||
'title': chat['title']
|
||
})
|
||
else:
|
||
error_msg = response.json().get('error', {}).get('message', 'Unknown error')
|
||
return jsonify({'error': error_msg}), response.status_code
|
||
|
||
except Exception as e:
|
||
return jsonify({'error': str(e)}), 500
|
||
|
||
|
||
@app.route('/api/admin/chat/<chat_id>', methods=['DELETE'])
|
||
def api_admin_delete_chat(chat_id):
|
||
"""删除对话"""
|
||
data = load_chats()
|
||
data['chats'] = [c for c in data['chats'] if c['id'] != chat_id]
|
||
save_chats(data)
|
||
return jsonify({'success': True})
|
||
|
||
|
||
@app.route('/api/admin/chat/<chat_id>/clear', methods=['POST'])
|
||
def api_admin_clear_chat(chat_id):
|
||
"""清空对话消息"""
|
||
data = load_chats()
|
||
|
||
for chat in data['chats']:
|
||
if chat['id'] == chat_id:
|
||
chat['messages'] = []
|
||
chat['updated_at'] = datetime.now().isoformat()
|
||
save_chats(data)
|
||
return jsonify({'success': True})
|
||
|
||
return jsonify({'error': 'Chat not found'}), 404
|
||
|
||
|
||
if __name__ == '__main__':
|
||
refresh_config()
|
||
|
||
print("=" * 60)
|
||
print("大模型API中转系统 v2.0.0")
|
||
print("=" * 60)
|
||
print(f"API地址: http://localhost:{SERVER_CONFIG['port']}")
|
||
print(f"后台管理: http://localhost:{SERVER_CONFIG['port']}/admin")
|
||
print("=" * 60)
|
||
print("上游提供商:")
|
||
for p in sorted(_cached_providers, key=lambda x: x['priority']):
|
||
print(f" [{p['priority']}] {p['name']}: {p['base_url']}")
|
||
print(f" 模型: {', '.join(p['models'])}")
|
||
print("=" * 60)
|
||
|
||
app.run(
|
||
host=SERVER_CONFIG['host'],
|
||
port=SERVER_CONFIG['port'],
|
||
debug=SERVER_CONFIG['debug']
|
||
) |