Files
gemini-balance/app/config/config.py
snaily b6a54190ed feat(config): 更新数据库类型设置的同步逻辑
本次提交主要更改了 `sync_initial_settings` 函数,增加了对 `DATABASE_TYPE` 设置的处理逻辑。具体变更包括:

- 在从数据库更新内存设置时,跳过对 `DATABASE_TYPE` 的更新,并记录调试信息,说明该设置由环境变量控制。
- 在将内存设置同步到数据库时,同样跳过对 `DATABASE_TYPE` 的同步,并记录调试信息。

DATABASE_TYPE 配置项将不会从数据库加载,也不会被同步到数据库,确保了您可以通过环境配置来控制数据库类型。
2025-05-08 22:12:14 +08:00

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"""
应用程序配置模块
"""
import datetime
import json
from typing import Any, Dict, List, Type
from pydantic import ValidationError, ValidationInfo, field_validator
from pydantic_settings import BaseSettings
from sqlalchemy import insert, select, update
from app.core.constants import (
API_VERSION,
DEFAULT_CREATE_IMAGE_MODEL,
DEFAULT_FILTER_MODELS,
DEFAULT_MODEL,
DEFAULT_SAFETY_SETTINGS,
DEFAULT_STREAM_CHUNK_SIZE,
DEFAULT_STREAM_LONG_TEXT_THRESHOLD,
DEFAULT_STREAM_MAX_DELAY,
DEFAULT_STREAM_MIN_DELAY,
DEFAULT_STREAM_SHORT_TEXT_THRESHOLD,
DEFAULT_TIMEOUT,
MAX_RETRIES,
)
from app.log.logger import Logger
class Settings(BaseSettings):
# 数据库配置
DATABASE_TYPE: str = "mysql" # sqlite 或 mysql
SQLITE_DATABASE: str = "default_db"
MYSQL_HOST: str = ""
MYSQL_PORT: int = 3306
MYSQL_USER: str = ""
MYSQL_PASSWORD: str = ""
MYSQL_DATABASE: str = ""
MYSQL_SOCKET: str = ""
# 验证 MySQL 配置
@field_validator(
"MYSQL_HOST", "MYSQL_PORT", "MYSQL_USER", "MYSQL_PASSWORD", "MYSQL_DATABASE"
)
def validate_mysql_config(cls, v: Any, info: ValidationInfo) -> Any:
if info.data.get("DATABASE_TYPE") == "mysql":
if v is None or v == "":
raise ValueError(
"MySQL configuration is required when DATABASE_TYPE is 'mysql'"
)
return v
# API相关配置
API_KEYS: List[str]
ALLOWED_TOKENS: List[str]
BASE_URL: str = f"https://generativelanguage.googleapis.com/{API_VERSION}"
AUTH_TOKEN: str = ""
MAX_FAILURES: int = 3
TEST_MODEL: str = DEFAULT_MODEL
TIME_OUT: int = DEFAULT_TIMEOUT
MAX_RETRIES: int = MAX_RETRIES
PROXIES: List[str] = [] # 新增:代理服务器列表
# 模型相关配置
SEARCH_MODELS: List[str] = ["gemini-2.0-flash-exp"]
IMAGE_MODELS: List[str] = ["gemini-2.0-flash-exp"]
FILTERED_MODELS: List[str] = DEFAULT_FILTER_MODELS
TOOLS_CODE_EXECUTION_ENABLED: bool = False
SHOW_SEARCH_LINK: bool = True
SHOW_THINKING_PROCESS: bool = True
THINKING_MODELS: List[str] = [] # 新增:用于思考过程的模型列表
THINKING_BUDGET_MAP: Dict[str, float] = {} # 新增:模型对应的预算映射
# 图像生成相关配置
PAID_KEY: str = ""
CREATE_IMAGE_MODEL: str = DEFAULT_CREATE_IMAGE_MODEL
UPLOAD_PROVIDER: str = "smms"
SMMS_SECRET_TOKEN: str = ""
PICGO_API_KEY: str = ""
CLOUDFLARE_IMGBED_URL: str = ""
CLOUDFLARE_IMGBED_AUTH_CODE: str = ""
# 流式输出优化器配置
STREAM_OPTIMIZER_ENABLED: bool = False
STREAM_MIN_DELAY: float = DEFAULT_STREAM_MIN_DELAY
STREAM_MAX_DELAY: float = DEFAULT_STREAM_MAX_DELAY
STREAM_SHORT_TEXT_THRESHOLD: int = DEFAULT_STREAM_SHORT_TEXT_THRESHOLD
STREAM_LONG_TEXT_THRESHOLD: int = DEFAULT_STREAM_LONG_TEXT_THRESHOLD
STREAM_CHUNK_SIZE: int = DEFAULT_STREAM_CHUNK_SIZE
# 调度器配置
CHECK_INTERVAL_HOURS: int = 1 # 默认检查间隔为1小时
TIMEZONE: str = "Asia/Shanghai" # 默认时区
# github
GITHUB_REPO_OWNER: str = "snailyp"
GITHUB_REPO_NAME: str = "gemini-balance"
# 日志配置
LOG_LEVEL: str = "INFO" # 默认日志级别
AUTO_DELETE_ERROR_LOGS_ENABLED: bool = True # 是否开启自动删除错误日志
AUTO_DELETE_ERROR_LOGS_DAYS: int = 7 # 自动删除多少天前的错误日志 (1, 7, 30)
AUTO_DELETE_REQUEST_LOGS_ENABLED: bool = False # 是否开启自动删除请求日志
AUTO_DELETE_REQUEST_LOGS_DAYS: int = 30 # 自动删除多少天前的请求日志 (1, 7, 30)
SAFETY_SETTINGS: List[Dict[str, str]] = DEFAULT_SAFETY_SETTINGS # 新增:安全设置
def __init__(self, **kwargs):
super().__init__(**kwargs)
# 设置默认AUTH_TOKEN如果未提供
if not self.AUTH_TOKEN and self.ALLOWED_TOKENS:
self.AUTH_TOKEN = self.ALLOWED_TOKENS[0]
# 创建全局配置实例
settings = Settings()
def _parse_db_value(key: str, db_value: str, target_type: Type) -> Any:
"""尝试将数据库字符串值解析为目标 Python 类型"""
from app.log.logger import get_config_logger # 函数内导入
logger = get_config_logger() # 函数内初始化
try:
# 处理 List[str]
if target_type == List[str]:
try:
parsed = json.loads(db_value)
if isinstance(parsed, list):
return [str(item) for item in parsed]
except json.JSONDecodeError:
return [item.strip() for item in db_value.split(",") if item.strip()]
logger.warning(
f"Could not parse '{db_value}' as List[str] for key '{key}', falling back to comma split or empty list."
)
return [item.strip() for item in db_value.split(",") if item.strip()]
# 处理 Dict[str, float]
elif target_type == Dict[str, float]:
parsed_dict = {}
try:
# First attempt: standard JSON parsing
parsed = json.loads(db_value)
if isinstance(parsed, dict):
parsed_dict = {str(k): float(v) for k, v in parsed.items()}
else:
logger.warning(
f"Parsed DB value for key '{key}' is not a dictionary type. Value: {db_value}"
)
except (json.JSONDecodeError, ValueError, TypeError) as e1:
# Second attempt: try replacing single quotes if JSONDecodeError occurred
if isinstance(e1, json.JSONDecodeError) and "'" in db_value:
logger.warning(
f"Failed initial JSON parse for key '{key}'. Attempting to replace single quotes. Error: {e1}"
)
try:
corrected_db_value = db_value.replace("'", '"')
parsed = json.loads(corrected_db_value)
if isinstance(parsed, dict):
parsed_dict = {str(k): float(v) for k, v in parsed.items()}
else:
logger.warning(
f"Parsed DB value (after quote replacement) for key '{key}' is not a dictionary type. Value: {corrected_db_value}"
)
except (json.JSONDecodeError, ValueError, TypeError) as e2:
logger.error(
f"Could not parse '{db_value}' as Dict[str, float] for key '{key}' even after replacing quotes: {e2}. Returning empty dict."
)
else:
# Log other errors (ValueError, TypeError) or JSON errors without single quotes
logger.error(
f"Could not parse '{db_value}' as Dict[str, float] for key '{key}': {e1}. Returning empty dict."
)
return parsed_dict # Return the parsed dict or an empty one if all attempts fail
# 处理 List[Dict[str, str]]
elif target_type == List[Dict[str, str]]:
try:
parsed = json.loads(db_value)
if isinstance(parsed, list):
# 验证列表中的每个元素是否为字典,并且键和值都是字符串
valid = all(
isinstance(item, dict)
and all(isinstance(k, str) for k in item.keys())
and all(isinstance(v, str) for v in item.values())
for item in parsed
)
if valid:
return parsed
else:
logger.warning(
f"Invalid structure in List[Dict[str, str]] for key '{key}'. Value: {db_value}"
)
return [] # 或者返回默认值?这里返回空列表
else:
logger.warning(
f"Parsed DB value for key '{key}' is not a list type. Value: {db_value}"
)
return []
except json.JSONDecodeError:
logger.error(
f"Could not parse '{db_value}' as JSON for List[Dict[str, str]] for key '{key}'. Returning empty list."
)
return []
except Exception as e:
logger.error(
f"Error parsing List[Dict[str, str]] for key '{key}': {e}. Value: {db_value}. Returning empty list."
)
return []
# 处理 bool
elif target_type == bool:
return db_value.lower() in ("true", "1", "yes", "on")
# 处理 int
elif target_type == int:
return int(db_value)
# 处理 float
elif target_type == float:
return float(db_value)
# 默认为 str 或其他 pydantic 能直接处理的类型
else:
return db_value
except (ValueError, TypeError, json.JSONDecodeError) as e:
logger.warning(
f"Failed to parse db_value '{db_value}' for key '{key}' as type {target_type}: {e}. Using original string value."
)
return db_value # 解析失败则返回原始字符串
async def sync_initial_settings():
"""
应用启动时同步配置:
1. 从数据库加载设置。
2. 将数据库设置合并到内存 settings (数据库优先)。
3. 将最终的内存 settings 同步回数据库。
"""
from app.log.logger import get_config_logger # 函数内导入
logger = get_config_logger() # 函数内初始化
# 延迟导入以避免循环依赖和确保数据库连接已初始化
from app.database.connection import database
from app.database.models import Settings as SettingsModel
global settings
logger.info("Starting initial settings synchronization...")
if not database.is_connected:
try:
await database.connect()
logger.info("Database connection established for initial sync.")
except Exception as e:
logger.error(
f"Failed to connect to database for initial settings sync: {e}. Skipping sync."
)
return
try:
# 1. 从数据库加载设置
db_settings_raw: List[Dict[str, Any]] = []
try:
query = select(SettingsModel.key, SettingsModel.value)
results = await database.fetch_all(query)
db_settings_raw = [
{"key": row["key"], "value": row["value"]} for row in results
]
logger.info(f"Fetched {len(db_settings_raw)} settings from database.")
except Exception as e:
logger.error(
f"Failed to fetch settings from database: {e}. Proceeding with environment/dotenv settings."
)
# 即使数据库读取失败,也要继续执行,确保基于 env/dotenv 的配置能同步到数据库
db_settings_map: Dict[str, str] = {
s["key"]: s["value"] for s in db_settings_raw
}
# 2. 将数据库设置合并到内存 settings (数据库优先)
updated_in_memory = False
for key, db_value in db_settings_map.items():
if key == "DATABASE_TYPE":
logger.debug(
f"Skipping update of '{key}' in memory from database. "
"This setting is controlled by environment/dotenv."
)
continue
if hasattr(settings, key):
target_type = Settings.__annotations__.get(key)
if target_type:
try:
parsed_db_value = _parse_db_value(key, db_value, target_type)
memory_value = getattr(settings, key)
# 比较解析后的值和内存中的值
# 注意:对于列表等复杂类型,直接比较可能不够健壮,但这里简化处理
if parsed_db_value != memory_value:
# 检查类型是否匹配,以防解析函数返回了不兼容的类型
type_match = False
if target_type == List[str] and isinstance(
parsed_db_value, list
):
type_match = True
elif target_type == Dict[str, float] and isinstance(
parsed_db_value, dict
):
type_match = True
elif target_type not in (
List[str],
Dict[str, float],
) and isinstance(parsed_db_value, target_type):
type_match = True
if type_match:
setattr(settings, key, parsed_db_value)
logger.debug(
f"Updated setting '{key}' in memory from database value ({target_type})."
)
updated_in_memory = True
else:
logger.warning(
f"Parsed DB value type mismatch for key '{key}'. Expected {target_type}, got {type(parsed_db_value)}. Skipping update."
)
except Exception as e:
logger.error(
f"Error processing database setting for key '{key}': {e}"
)
else:
logger.warning(
f"Database setting '{key}' not found in Settings model definition. Ignoring."
)
# 如果内存中有更新,重新验证 Pydantic 模型(可选但推荐)
if updated_in_memory:
try:
# 重新加载以确保类型转换和验证
settings = Settings(**settings.model_dump())
logger.info(
"Settings object re-validated after merging database values."
)
except ValidationError as e:
logger.error(
f"Validation error after merging database settings: {e}. Settings might be inconsistent."
)
# 3. 将最终的内存 settings 同步回数据库
final_memory_settings = settings.model_dump()
settings_to_update: List[Dict[str, Any]] = []
settings_to_insert: List[Dict[str, Any]] = []
now = datetime.datetime.now(datetime.timezone.utc)
existing_db_keys = set(db_settings_map.keys())
for key, value in final_memory_settings.items():
if key == "DATABASE_TYPE":
logger.debug(
f"Skipping synchronization of '{key}' to database. "
"This setting is controlled by environment/dotenv."
)
continue
# 序列化值为字符串或 JSON 字符串
if isinstance(value, (list, dict)): # 处理列表和字典
db_value = json.dumps(
value, ensure_ascii=False
) # 使用 ensure_ascii=False 以支持非 ASCII 字符
elif isinstance(value, bool):
db_value = str(value).lower()
elif value is None: # 处理 None 值
db_value = "" # 或者根据需要设为 NULL 或其他标记
else:
db_value = str(value)
data = {
"key": key,
"value": db_value,
"description": f"{key} configuration setting", # 默认描述
"updated_at": now,
}
if key in existing_db_keys:
# 仅当值与数据库中的不同时才更新
if db_settings_map[key] != db_value:
settings_to_update.append(data)
else:
# 如果键不在数据库中,则插入
data["created_at"] = now
settings_to_insert.append(data)
# 在事务中执行批量插入和更新
if settings_to_insert or settings_to_update:
try:
async with database.transaction():
if settings_to_insert:
# 获取现有描述以避免覆盖
query_existing = select(
SettingsModel.key, SettingsModel.description
).where(
SettingsModel.key.in_(
[s["key"] for s in settings_to_insert]
)
)
existing_desc = {
row["key"]: row["description"]
for row in await database.fetch_all(query_existing)
}
for item in settings_to_insert:
item["description"] = existing_desc.get(
item["key"], item["description"]
)
query_insert = insert(SettingsModel).values(settings_to_insert)
await database.execute(query=query_insert)
logger.info(
f"Synced (inserted) {len(settings_to_insert)} settings to database."
)
if settings_to_update:
# 获取现有描述以避免覆盖
query_existing = select(
SettingsModel.key, SettingsModel.description
).where(
SettingsModel.key.in_(
[s["key"] for s in settings_to_update]
)
)
existing_desc = {
row["key"]: row["description"]
for row in await database.fetch_all(query_existing)
}
for setting_data in settings_to_update:
setting_data["description"] = existing_desc.get(
setting_data["key"], setting_data["description"]
)
query_update = (
update(SettingsModel)
.where(SettingsModel.key == setting_data["key"])
.values(
value=setting_data["value"],
description=setting_data["description"],
updated_at=setting_data["updated_at"],
)
)
await database.execute(query=query_update)
logger.info(
f"Synced (updated) {len(settings_to_update)} settings to database."
)
except Exception as e:
logger.error(
f"Failed to sync settings to database during startup: {str(e)}"
)
else:
logger.info(
"No setting changes detected between memory and database during initial sync."
)
# 刷新日志等级
Logger.update_log_levels(final_memory_settings.get("LOG_LEVEL"))
except Exception as e:
logger.error(f"An unexpected error occurred during initial settings sync: {e}")
finally:
if database.is_connected:
try:
pass
except Exception as e:
logger.error(f"Error disconnecting database after initial sync: {e}")
logger.info("Initial settings synchronization finished.")