998211c483
- 从服务器拉取完整代码 - 按框架规范整理项目结构 - 配置 Drone CI 测试环境部署 - 包含后端(FastAPI)、前端(Vue3)、管理端 技术栈: Vue3 + TypeScript + FastAPI + MySQL
364 lines
11 KiB
Python
364 lines
11 KiB
Python
"""
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SQL 执行器 API - 用于内部服务调用
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支持执行查询和写入操作的 SQL 语句
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"""
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import json
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from typing import Any, Dict, List, Optional, Union
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from datetime import datetime, date
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from fastapi import APIRouter, Depends, HTTPException, status
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from sqlalchemy import text
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from sqlalchemy.ext.asyncio import AsyncSession
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from sqlalchemy.engine.result import Result
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import structlog
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from app.core.deps import get_current_user, get_db
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try:
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from app.core.simple_auth import get_current_user_simple
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except ImportError:
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get_current_user_simple = None
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from app.core.config import settings
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from app.models.user import User
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from app.schemas.base import ResponseModel
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logger = structlog.get_logger(__name__)
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router = APIRouter(tags=["SQL Executor"])
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class SQLExecutorRequest:
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"""SQL执行请求模型"""
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def __init__(self, sql: str, params: Optional[Dict[str, Any]] = None):
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self.sql = sql
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self.params = params or {}
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class DateTimeEncoder(json.JSONEncoder):
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"""处理日期时间对象的 JSON 编码器"""
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def default(self, obj):
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if isinstance(obj, (datetime, date)):
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return obj.isoformat()
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return super().default(obj)
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def serialize_row(row: Any) -> Union[Dict[str, Any], Any]:
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"""序列化数据库行结果"""
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if hasattr(row, '_mapping'):
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# 处理 SQLAlchemy Row 对象
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return dict(row._mapping)
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elif hasattr(row, '__dict__'):
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# 处理 ORM 对象
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return {k: v for k, v in row.__dict__.items() if not k.startswith('_')}
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else:
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# 处理单值结果
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return row
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@router.post("/execute", response_model=ResponseModel)
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async def execute_sql(
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request: Dict[str, Any],
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current_user: User = Depends(get_current_user),
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db: AsyncSession = Depends(get_db)
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) -> ResponseModel:
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"""
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执行 SQL 语句
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Args:
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request: 包含 sql 和可选的 params 字段
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- sql: SQL 语句
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- params: 参数字典（可选）
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Returns:
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执行结果，包括：
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- 查询操作：返回数据行
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- 写入操作：返回影响的行数
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安全说明：
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- 需要用户身份验证
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- 所有操作都会记录日志
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- 建议在生产环境中限制可执行的 SQL 类型
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"""
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try:
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# 提取参数
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sql = request.get('sql', '').strip()
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params = request.get('params', {})
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if not sql:
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="SQL 语句不能为空"
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)
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# 记录 SQL 执行日志
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logger.info(
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"sql_execution_request",
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user_id=current_user.id,
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username=current_user.username,
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sql_type=sql.split()[0].upper() if sql else "UNKNOWN",
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sql_length=len(sql),
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has_params=bool(params)
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)
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# 判断 SQL 类型
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sql_upper = sql.upper().strip()
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is_select = sql_upper.startswith('SELECT')
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is_show = sql_upper.startswith('SHOW')
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is_describe = sql_upper.startswith(('DESCRIBE', 'DESC'))
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is_query = is_select or is_show or is_describe
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# 执行 SQL
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try:
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result = await db.execute(text(sql), params)
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if is_query:
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# 查询操作
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rows = result.fetchall()
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columns = list(result.keys()) if result.keys() else []
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# 序列化结果
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data = []
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for row in rows:
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serialized_row = serialize_row(row)
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if isinstance(serialized_row, dict):
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data.append(serialized_row)
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else:
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# 单列结果
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data.append({columns[0] if columns else 'value': serialized_row})
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# 使用自定义编码器处理日期时间
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response_data = {
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"type": "query",
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"columns": columns,
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"rows": json.loads(json.dumps(data, cls=DateTimeEncoder)),
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"row_count": len(data)
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}
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logger.info(
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"sql_query_success",
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user_id=current_user.id,
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row_count=len(data),
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column_count=len(columns)
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)
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else:
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# 写入操作
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await db.commit()
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affected_rows = result.rowcount
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response_data = {
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"type": "execute",
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"affected_rows": affected_rows,
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"success": True
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}
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logger.info(
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"sql_execute_success",
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user_id=current_user.id,
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affected_rows=affected_rows
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)
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return ResponseModel(
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code=200,
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message="SQL 执行成功",
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data=response_data
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)
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except Exception as e:
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# 回滚事务
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await db.rollback()
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logger.error(
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"sql_execution_error",
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user_id=current_user.id,
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sql_type=sql.split()[0].upper() if sql else "UNKNOWN",
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error=str(e),
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exc_info=True
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)
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"SQL 执行失败: {str(e)}"
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)
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except HTTPException:
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raise
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except Exception as e:
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logger.error(
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"sql_executor_error",
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user_id=current_user.id,
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error=str(e),
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exc_info=True
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)
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"处理请求时发生错误: {str(e)}"
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)
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@router.post("/validate", response_model=ResponseModel)
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async def validate_sql(
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request: Dict[str, Any],
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current_user: User = Depends(get_current_user)
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) -> ResponseModel:
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"""
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验证 SQL 语句的语法（不执行）
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Args:
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request: 包含 sql 字段的请求
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Returns:
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验证结果
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"""
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try:
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sql = request.get('sql', '').strip()
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if not sql:
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return ResponseModel(
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code=400,
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message="SQL 语句不能为空",
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data={"valid": False, "error": "SQL 语句不能为空"}
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)
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# 基本的 SQL 验证
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sql_upper = sql.upper().strip()
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# 检查危险操作（可根据需要调整）
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dangerous_keywords = ['DROP', 'TRUNCATE', 'DELETE FROM', 'UPDATE']
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warnings = []
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for keyword in dangerous_keywords:
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if keyword in sql_upper:
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warnings.append(f"包含危险操作: {keyword}")
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return ResponseModel(
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code=200,
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message="SQL 验证完成",
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data={
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"valid": True,
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"warnings": warnings,
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"sql_type": sql_upper.split()[0] if sql_upper else "UNKNOWN"
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}
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)
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except Exception as e:
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logger.error(
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"sql_validation_error",
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user_id=current_user.id,
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error=str(e)
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)
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return ResponseModel(
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code=500,
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message="SQL 验证失败",
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data={"valid": False, "error": str(e)}
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)
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@router.get("/tables", response_model=ResponseModel)
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async def get_tables(
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current_user: User = Depends(get_current_user),
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db: AsyncSession = Depends(get_db)
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) -> ResponseModel:
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"""
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获取数据库中的所有表
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Returns:
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数据库表列表
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"""
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try:
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result = await db.execute(text("SHOW TABLES"))
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tables = [row[0] for row in result.fetchall()]
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return ResponseModel(
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code=200,
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message="获取表列表成功",
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data={
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"tables": tables,
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"count": len(tables)
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}
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)
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except Exception as e:
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logger.error(
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"get_tables_error",
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user_id=current_user.id,
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error=str(e)
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)
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"获取表列表失败: {str(e)}"
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)
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@router.get("/table/{table_name}/schema", response_model=ResponseModel)
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async def get_table_schema(
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table_name: str,
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current_user: User = Depends(get_current_user),
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db: AsyncSession = Depends(get_db)
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) -> ResponseModel:
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"""
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获取指定表的结构信息
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Args:
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table_name: 表名
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Returns:
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表结构信息
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"""
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try:
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# MySQL 的 DESCRIBE 不支持参数化，需要直接拼接
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# 但为了安全，先验证表名
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if not table_name.replace('_', '').isalnum():
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raise HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail="无效的表名"
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)
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result = await db.execute(text(f"DESCRIBE {table_name}"))
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columns = []
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for row in result.fetchall():
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columns.append({
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"field": row[0],
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"type": row[1],
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"null": row[2],
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"key": row[3],
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"default": row[4],
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"extra": row[5]
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})
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return ResponseModel(
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code=200,
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message="获取表结构成功",
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data={
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"table_name": table_name,
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"columns": columns,
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"column_count": len(columns)
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}
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)
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except Exception as e:
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logger.error(
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"get_table_schema_error",
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user_id=current_user.id,
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table_name=table_name,
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error=str(e)
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)
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raise HTTPException(
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status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
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detail=f"获取表结构失败: {str(e)}"
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)
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# 简化认证版本的端点（如果启用）
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if get_current_user_simple:
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@router.post("/execute-simple", response_model=ResponseModel)
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async def execute_sql_simple(
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request: Dict[str, Any],
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current_user: User = Depends(get_current_user_simple),
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db: AsyncSession = Depends(get_db)
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) -> ResponseModel:
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"""
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执行 SQL 语句（简化认证版本）
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支持 API Key 和 Token 两种认证方式，专为内部服务设计。
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"""
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return await execute_sql(request, current_user, db)
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