mirror of
https://github.com/snailyp/gemini-balance.git
synced 2026-05-17 09:27:35 +08:00
0693a5c245
- 后端新增 ResetSelectedKeysRequest、VerifySelectedKeysRequest 数据模型及相关 API 路由，实现批量重置选定密钥失败计数功能 - 前端 keys_status.js/keys_status.html 新增批量验证按钮、批量验证弹窗及交互逻辑，支持对筛选后密钥进行批量验证 - 自动刷新功能支持开关，优化用户体验 - UI 细节优化，提升密钥管理便捷性
383 lines
16 KiB
Python
383 lines
16 KiB
Python
from fastapi import APIRouter, Depends, HTTPException
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from fastapi.responses import StreamingResponse, JSONResponse
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from copy import deepcopy
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from app.config.config import settings
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from app.log.logger import get_gemini_logger
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from app.core.security import SecurityService
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import asyncio # 导入 asyncio
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from app.domain.gemini_models import GeminiContent, GeminiRequest, ResetSelectedKeysRequest, VerifySelectedKeysRequest # 添加导入
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from app.service.chat.gemini_chat_service import GeminiChatService
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from app.service.key.key_manager import KeyManager, get_key_manager_instance
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from app.service.model.model_service import ModelService
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from app.handler.retry_handler import RetryHandler
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from app.core.constants import API_VERSION
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# 路由设置
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router = APIRouter(prefix=f"/gemini/{API_VERSION}")
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router_v1beta = APIRouter(prefix=f"/{API_VERSION}")
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logger = get_gemini_logger()
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# 初始化服务
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security_service = SecurityService()
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model_service = ModelService()
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async def get_key_manager():
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"""获取密钥管理器实例"""
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return await get_key_manager_instance()
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async def get_next_working_key(key_manager: KeyManager = Depends(get_key_manager)):
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"""获取下一个可用的API密钥"""
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return await key_manager.get_next_working_key()
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async def get_chat_service(key_manager: KeyManager = Depends(get_key_manager)):
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"""获取Gemini聊天服务实例"""
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return GeminiChatService(settings.BASE_URL, key_manager)
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@router.get("/models")
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@router_v1beta.get("/models")
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async def list_models(
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_=Depends(security_service.verify_key_or_goog_api_key),
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key_manager: KeyManager = Depends(get_key_manager)
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):
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"""获取可用的Gemini模型列表"""
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logger.info("-" * 50 + "list_gemini_models" + "-" * 50)
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logger.info("Handling Gemini models list request")
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api_key = await key_manager.get_first_valid_key()
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logger.info(f"Using API key: {api_key}")
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models_json = model_service.get_gemini_models(api_key)
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model_mapping = {x.get("name", "").split("/", maxsplit=1)[1]: x for x in models_json["models"]}
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# 添加搜索模型
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if settings.SEARCH_MODELS:
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for name in settings.SEARCH_MODELS:
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model = model_mapping.get(name)
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if not model:
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continue
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item = deepcopy(model)
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item["name"] = f"models/{name}-search"
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display_name = f'{item.get("displayName")} For Search'
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item["displayName"] = display_name
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item["description"] = display_name
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models_json["models"].append(item)
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# 添加图像生成模型
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if settings.IMAGE_MODELS:
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for name in settings.IMAGE_MODELS:
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model = model_mapping.get(name)
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if not model:
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continue
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item = deepcopy(model)
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item["name"] = f"models/{name}-image"
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display_name = f'{item.get("displayName")} For Image'
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item["displayName"] = display_name
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item["description"] = display_name
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models_json["models"].append(item)
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return models_json
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@router.post("/models/{model_name}:generateContent")
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@router_v1beta.post("/models/{model_name}:generateContent")
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@RetryHandler(max_retries=settings.MAX_RETRIES, key_arg="api_key")
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async def generate_content(
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model_name: str,
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request: GeminiRequest,
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_=Depends(security_service.verify_key_or_goog_api_key),
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api_key: str = Depends(get_next_working_key),
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chat_service: GeminiChatService = Depends(get_chat_service)
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):
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"""非流式生成内容"""
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logger.info("-" * 50 + "gemini_generate_content" + "-" * 50)
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logger.info(f"Handling Gemini content generation request for model: {model_name}")
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logger.info(f"Request: \n{request.model_dump_json(indent=2)}")
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logger.info(f"Using API key: {api_key}")
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if not model_service.check_model_support(model_name):
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raise HTTPException(status_code=400, detail=f"Model {model_name} is not supported")
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try:
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response = await chat_service.generate_content(
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model=model_name,
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request=request,
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api_key=api_key
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)
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return response
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except Exception as e:
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logger.error(f"Chat completion failed after retries: {str(e)}")
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raise HTTPException(status_code=500, detail="Chat completion failed") from e
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@router.post("/models/{model_name}:streamGenerateContent")
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@router_v1beta.post("/models/{model_name}:streamGenerateContent")
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@RetryHandler(max_retries=settings.MAX_RETRIES, key_arg="api_key")
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async def stream_generate_content(
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model_name: str,
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request: GeminiRequest,
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_=Depends(security_service.verify_key_or_goog_api_key),
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api_key: str = Depends(get_next_working_key),
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chat_service: GeminiChatService = Depends(get_chat_service)
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):
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"""流式生成内容"""
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logger.info("-" * 50 + "gemini_stream_generate_content" + "-" * 50)
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logger.info(f"Handling Gemini streaming content generation for model: {model_name}")
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logger.info(f"Request: \n{request.model_dump_json(indent=2)}")
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logger.info(f"Using API key: {api_key}")
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if not model_service.check_model_support(model_name):
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raise HTTPException(status_code=400, detail=f"Model {model_name} is not supported")
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try:
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response_stream = chat_service.stream_generate_content(
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model=model_name,
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request=request,
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api_key=api_key
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)
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return StreamingResponse(response_stream, media_type="text/event-stream")
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except Exception as e:
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logger.error(f"Streaming request failed: {str(e)}")
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raise HTTPException(status_code=500, detail="Streaming request failed") from e
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@router.post("/reset-all-fail-counts")
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async def reset_all_key_fail_counts(key_type: str = None, key_manager: KeyManager = Depends(get_key_manager)):
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"""批量重置Gemini API密钥的失败计数，可选择性地仅重置有效或无效密钥"""
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logger.info("-" * 50 + "reset_all_gemini_key_fail_counts" + "-" * 50)
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logger.info(f"Received reset request with key_type: {key_type}")
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try:
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# 获取分类后的密钥
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keys_by_status = await key_manager.get_keys_by_status()
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valid_keys = keys_by_status.get("valid_keys", {})
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invalid_keys = keys_by_status.get("invalid_keys", {})
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# 根据类型选择要重置的密钥
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keys_to_reset = []
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if key_type == "valid":
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keys_to_reset = list(valid_keys.keys())
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logger.info(f"Resetting only valid keys, count: {len(keys_to_reset)}")
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elif key_type == "invalid":
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keys_to_reset = list(invalid_keys.keys())
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logger.info(f"Resetting only invalid keys, count: {len(keys_to_reset)}")
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else:
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# 重置所有密钥
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await key_manager.reset_failure_counts()
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return JSONResponse({"success": True, "message": "所有密钥的失败计数已重置"})
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# 批量重置指定类型的密钥
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for key in keys_to_reset:
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await key_manager.reset_key_failure_count(key)
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return JSONResponse({
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"success": True,
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"message": f"{key_type}密钥的失败计数已重置",
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"reset_count": len(keys_to_reset)
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})
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except Exception as e:
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logger.error(f"Failed to reset key failure counts: {str(e)}")
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return JSONResponse({"success": False, "message": f"批量重置失败: {str(e)}"}, status_code=500)
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@router.post("/reset-selected-fail-counts")
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async def reset_selected_key_fail_counts(
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request: ResetSelectedKeysRequest,
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key_manager: KeyManager = Depends(get_key_manager)
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):
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"""批量重置选定Gemini API密钥的失败计数"""
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logger.info("-" * 50 + "reset_selected_gemini_key_fail_counts" + "-" * 50)
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keys_to_reset = request.keys
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key_type = request.key_type # 获取类型用于日志记录和响应消息
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logger.info(f"Received reset request for {len(keys_to_reset)} selected {key_type} keys.")
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if not keys_to_reset:
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return JSONResponse({"success": False, "message": "没有提供需要重置的密钥"}, status_code=400)
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reset_count = 0
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errors = []
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try:
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for key in keys_to_reset:
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try:
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result = await key_manager.reset_key_failure_count(key)
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if result:
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reset_count += 1
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else:
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# 记录未找到的密钥，但不视为致命错误
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logger.warning(f"Key not found during selective reset: {key}")
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except Exception as key_error:
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# 记录单个密钥重置时的错误
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logger.error(f"Error resetting key {key}: {str(key_error)}")
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errors.append(f"Key {key}: {str(key_error)}")
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if errors:
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# 如果有错误，报告部分成功或完全失败
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error_message = f"批量重置完成，但出现错误: {'; '.join(errors)}"
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# 确定最终状态码和成功标志
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final_success = reset_count > 0
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status_code = 207 if final_success and errors else 500 # 207 Multi-Status if partially successful, 500 if completely failed
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return JSONResponse({
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"success": final_success,
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"message": error_message,
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"reset_count": reset_count
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}, status_code=status_code)
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# 完全成功的情况
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return JSONResponse({
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"success": True,
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"message": f"成功重置 {reset_count} 个选定 {key_type} 密钥的失败计数",
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"reset_count": reset_count
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})
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except Exception as e:
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# 捕获循环外的意外错误
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logger.error(f"Failed to process reset selected key failure counts request: {str(e)}")
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return JSONResponse({"success": False, "message": f"批量重置处理失败: {str(e)}"}, status_code=500)
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@router.post("/reset-fail-count/{api_key}")
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async def reset_key_fail_count(api_key: str, key_manager: KeyManager = Depends(get_key_manager)):
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"""重置指定Gemini API密钥的失败计数"""
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logger.info("-" * 50 + "reset_gemini_key_fail_count" + "-" * 50)
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logger.info(f"Resetting failure count for API key: {api_key}")
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try:
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result = await key_manager.reset_key_failure_count(api_key)
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if result:
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return JSONResponse({"success": True, "message": "失败计数已重置"})
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return JSONResponse({"success": False, "message": "未找到指定密钥"}, status_code=404)
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except Exception as e:
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logger.error(f"Failed to reset key failure count: {str(e)}")
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return JSONResponse({"success": False, "message": f"重置失败: {str(e)}"}, status_code=500)
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@router.post("/verify-key/{api_key}")
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async def verify_key(api_key: str, chat_service: GeminiChatService = Depends(get_chat_service), key_manager: KeyManager = Depends(get_key_manager)):
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"""验证Gemini API密钥的有效性"""
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logger.info("-" * 50 + "verify_gemini_key" + "-" * 50)
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logger.info("Verifying API key validity")
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try:
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# 使用generate_content接口测试key的有效性
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gemini_request = GeminiRequest(
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contents=[
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GeminiContent(
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role="user",
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parts=[{"text": "hi"}]
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)
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]
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)
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response = await chat_service.generate_content(
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settings.TEST_MODEL,
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gemini_request,
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api_key
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)
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if response:
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return JSONResponse({"status": "valid"})
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except Exception as e:
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logger.error(f"Key verification failed: {str(e)}")
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# 验证出现异常时增加失败计数
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async with key_manager.failure_count_lock:
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if api_key in key_manager.key_failure_counts:
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key_manager.key_failure_counts[api_key] += 1
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logger.warning(f"Verification exception for key: {api_key}, incrementing failure count")
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return JSONResponse({"status": "invalid", "error": str(e)})
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@router.post("/verify-selected-keys")
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async def verify_selected_keys(
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request: VerifySelectedKeysRequest,
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chat_service: GeminiChatService = Depends(get_chat_service),
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key_manager: KeyManager = Depends(get_key_manager)
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):
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"""批量验证选定Gemini API密钥的有效性"""
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logger.info("-" * 50 + "verify_selected_gemini_keys" + "-" * 50)
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keys_to_verify = request.keys
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logger.info(f"Received verification request for {len(keys_to_verify)} selected keys.")
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if not keys_to_verify:
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return JSONResponse({"success": False, "message": "没有提供需要验证的密钥"}, status_code=400)
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valid_count = 0
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invalid_count = 0
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verification_errors = {} # 存储验证过程中的错误
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async def _verify_single_key(api_key: str):
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"""内部函数，用于验证单个密钥并处理异常"""
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nonlocal valid_count, invalid_count # 允许修改外部计数器
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try:
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# 重用单密钥验证逻辑的核心部分
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gemini_request = GeminiRequest(
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contents=[GeminiContent(role="user", parts=[{"text": "hi"}])]
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)
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# 注意：这里直接调用 chat_service.generate_content，不依赖于 key_manager 获取密钥
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await chat_service.generate_content(
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settings.TEST_MODEL,
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gemini_request,
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api_key
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)
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# 如果上面没有抛出异常，则认为密钥有效
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valid_count += 1
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return api_key, "valid", None
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except Exception as e:
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error_message = str(e)
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logger.warning(f"Key verification failed for {api_key}: {error_message}")
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# 验证失败时增加失败计数 (使用与 /verify-key 一致的逻辑)
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async with key_manager.failure_count_lock:
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if api_key in key_manager.key_failure_counts:
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key_manager.key_failure_counts[api_key] += 1
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logger.warning(f"Bulk verification exception for key: {api_key}, incrementing failure count")
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else:
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# 如果密钥不在计数中（可能刚添加或从未失败），初始化为1
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key_manager.key_failure_counts[api_key] = 1
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logger.warning(f"Bulk verification exception for key: {api_key}, initializing failure count to 1")
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invalid_count += 1
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return api_key, "invalid", error_message
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# 并发执行所有密钥的验证
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tasks = [_verify_single_key(key) for key in keys_to_verify]
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results = await asyncio.gather(*tasks, return_exceptions=True) # return_exceptions=True 捕获任务本身的异常
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# 处理并发执行的结果
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for result in results:
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if isinstance(result, Exception):
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# 捕获 asyncio.gather 可能遇到的异常（例如任务被取消）
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logger.error(f"An unexpected error occurred during bulk verification task: {result}")
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# 可以选择如何处理这种任务级别的错误，这里我们简单记录
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# 也可以将其计入 invalid_count 或单独记录
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elif result:
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key, status, error = result
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if status == "invalid" and error:
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verification_errors[key] = error # 记录具体的验证错误信息
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logger.info(f"Bulk verification finished. Valid: {valid_count}, Invalid: {invalid_count}")
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# 根据是否有错误决定最终消息和状态
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if verification_errors or valid_count + invalid_count != len(keys_to_verify): # 检查是否有错误或任务异常
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error_summary = "; ".join([f"{k}: {v}" for k, v in verification_errors.items()])
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message = f"批量验证完成，但出现问题。有效: {valid_count}, 无效: {invalid_count}。错误详情: {error_summary or '任务执行异常'}"
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return JSONResponse({
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"success": False, # 标记为失败，因为有错误
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"message": message,
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"valid_count": valid_count,
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"invalid_count": invalid_count,
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"errors": verification_errors
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}, status_code=207) # 207 Multi-Status 表示部分成功/失败
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else:
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# 完全成功
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return JSONResponse({
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"success": True,
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"message": f"批量验证成功完成。有效: {valid_count}, 无效: {invalid_count}",
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"valid_count": valid_count,
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"invalid_count": invalid_count
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}) |