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video/util/file_util.py

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import os
import datetime
from pathlib import Path
from typing import Dict
def save_face_to_up_images(
client_ip: str,
face_name: str,
image_bytes: bytes,
image_format: str = "jpg"
) -> Dict[str, str]:
"""
保存人脸图片到 `/up_images/用户IP/人脸名字/` 路径
修复路径计算错误确保所有路径在up_images根目录下
参数:
client_ip: 客户端IP原始格式如192.168.1.101
face_name: 人脸名称用户输入可为空
image_bytes: 人脸图片二进制数据
image_format: 图片格式默认jpg
返回:
字典success是否成功db_path存数据库的相对路径local_abs_path本地绝对路径msg提示
"""
try:
# 1. 基础参数校验
if not client_ip.strip():
return {"success": False, "db_path": "", "local_abs_path": "", "msg": "客户端IP不能为空"}
if not image_bytes:
return {"success": False, "db_path": "", "local_abs_path": "", "msg": "图片二进制数据为空"}
if image_format.lower() not in ["jpg", "jpeg", "png"]:
return {"success": False, "db_path": "", "local_abs_path": "", "msg": "仅支持jpg/jpeg/png格式"}
# 2. 处理特殊字符(避免路径错误)
safe_ip = client_ip.strip().replace(".", "_") # IP中的.替换为_
safe_face_name = face_name.strip() if (face_name and face_name.strip()) else "未命名"
safe_face_name = "".join([c for c in safe_face_name if c not in r'\/:*?"<>|']) # 过滤非法字符
# 3. 构建根目录(强制转为绝对路径,避免相对路径混淆)
root_dir = Path("up_images").resolve() # 转为绝对路径(关键修复!)
if not root_dir.exists():
root_dir.mkdir(parents=True, exist_ok=True)
print(f"[FileUtil] 已创建up_images根目录{root_dir}")
# 4. 构建文件层级路径确保在root_dir子目录下
ip_dir = root_dir / safe_ip
face_name_dir = ip_dir / safe_face_name
face_name_dir.mkdir(parents=True, exist_ok=True) # 自动创建目录
print(f"[FileUtil] 图片存储目录:{face_name_dir}")
# 5. 生成唯一文件名(毫秒级时间戳)
timestamp = datetime.datetime.now().strftime("%Y%m%d%H%M%S%f")[:-3]
image_filename = f"face_{safe_ip}_{timestamp}.{image_format.lower()}"
# 6. 计算路径关键修复确保所有路径都是绝对路径且在root_dir下
local_abs_path = face_name_dir / image_filename # 绝对路径
# 验证路径是否在root_dir下防止路径穿越攻击
if not local_abs_path.resolve().is_relative_to(root_dir.resolve()):
raise Exception(f"图片路径不在up_images根目录下安全校验失败{local_abs_path}")
# 数据库存储路径从root_dir开始的相对路径如 up_images/192_168_110_31/小王/xxx.jpg
db_path = str(root_dir.name / local_abs_path.relative_to(root_dir))
# 7. 写入图片文件
with open(local_abs_path, "wb") as f:
f.write(image_bytes)
print(f"[FileUtil] 图片保存成功:")
print(f" 数据库路径:{db_path}")
print(f" 本地绝对路径:{local_abs_path}")
return {
"success": True,
"db_path": db_path, # 存数据库的相对路径up_images开头
"local_abs_path": str(local_abs_path), # 本地绝对路径
"msg": "图片保存成功"
}
except Exception as e:
error_msg = f"图片保存失败:{str(e)}"
print(f"[FileUtil] 错误:{error_msg}")
return {"success": False, "db_path": "", "local_abs_path": "", "msg": error_msg}