192 lines
6.3 KiB
Python
192 lines
6.3 KiB
Python
from datetime import datetime
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from urllib.parse import urlparse
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from pydantic import (
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BaseModel,
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ConfigDict,
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Field,
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field_validator,
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model_validator,
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)
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class ResourceItemSchema(BaseModel):
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"""资源项目模型"""
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model_config = ConfigDict(from_attributes=True)
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name: str = Field(..., description="文件名")
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file_url: str = Field(..., description="文件URL路径")
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relative_path: str = Field(..., description="相对路径")
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is_file: bool = Field(..., description="是否为文件")
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is_dir: bool = Field(..., description="是否为目录")
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size: int | None = Field(None, description="文件大小(字节)")
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created_time: datetime | None = Field(None, description="创建时间")
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modified_time: datetime | None = Field(None, description="修改时间")
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is_hidden: bool = Field(False, description="是否为隐藏文件")
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@field_validator("file_url")
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@classmethod
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def _validate_file_url(cls, v: str) -> str:
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v = v.strip()
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parsed = urlparse(v)
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# 允许相对路径（以 / 开头）和完整的 http/https URL
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if parsed.scheme and parsed.scheme not in ("http", "https"):
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raise ValueError("文件URL必须为 http/https 或相对路径")
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return v
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@field_validator("relative_path")
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@classmethod
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def _validate_relative_path(cls, v: str) -> str:
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v = v.strip()
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if ".." in v or v.startswith("\\"):
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raise ValueError("相对路径包含不安全字符")
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return v
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@model_validator(mode="after")
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def _validate_flags(self):
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if self.is_file and self.is_dir:
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raise ValueError("不能同时为文件和目录")
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if not self.is_file and not self.is_dir:
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raise ValueError("必须是文件或目录之一")
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# 根据名称自动修正隐藏标记
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self.is_hidden = self.name.startswith(".")
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return self
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class ResourceDirectorySchema(BaseModel):
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"""资源目录模型"""
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model_config = ConfigDict(from_attributes=True)
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path: str = Field(..., description="目录路径")
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name: str = Field(..., description="目录名称")
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items: list[ResourceItemSchema] = Field(default_factory=list, description="目录项")
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total_files: int = Field(0, description="文件总数")
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total_dirs: int = Field(0, description="目录总数")
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total_size: int = Field(0, description="总大小")
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class ResourceUploadSchema(BaseModel):
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"""资源上传响应模型"""
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model_config = ConfigDict(from_attributes=True)
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filename: str = Field(..., description="文件名")
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file_url: str = Field(..., description="访问URL")
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file_size: int = Field(..., description="文件大小")
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upload_time: datetime = Field(..., description="上传时间")
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class ResourceMoveSchema(BaseModel):
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"""资源移动模型"""
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model_config = ConfigDict(from_attributes=True)
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source_path: str = Field(..., description="源路径")
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target_path: str = Field(..., description="目标路径")
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overwrite: bool = Field(False, description="是否覆盖")
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@field_validator("source_path", "target_path")
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@classmethod
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def validate_paths(cls, value: str):
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"""校验移动/复制涉及的源路径与目标路径非空并去首尾空格。
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参数:
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- value (str): 路径字段当前值。
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返回:
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- str: 去空格后的路径。
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异常:
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- ValueError: 路径为空时抛出。
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"""
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if not value or len(value.strip()) == 0:
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raise ValueError("路径不能为空")
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return value.strip()
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class ResourceCopySchema(ResourceMoveSchema):
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"""资源复制模型"""
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class ResourceRenameSchema(BaseModel):
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"""资源重命名模型"""
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model_config = ConfigDict(from_attributes=True)
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old_path: str = Field(..., description="原路径")
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new_name: str = Field(..., max_length=255, description="新名称")
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@field_validator("old_path", "new_name")
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@classmethod
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def validate_inputs(cls, value: str):
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"""校验重命名所需的原路径与新名称非空并去首尾空格。
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参数:
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- value (str): 字段当前值。
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返回:
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- str: 去空格后的值。
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异常:
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- ValueError: 值为空时抛出。
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"""
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if not value or len(value.strip()) == 0:
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raise ValueError("参数不能为空")
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return value.strip()
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@field_validator("new_name")
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@classmethod
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def _validate_new_name(cls, v: str) -> str:
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v = v.strip()
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if ".." in v or "/" in v or "\\" in v:
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raise ValueError("新名称包含不安全字符")
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return v
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class ResourceCreateDirSchema(BaseModel):
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"""创建目录模型"""
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model_config = ConfigDict(from_attributes=True)
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parent_path: str = Field(..., description="父目录路径")
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dir_name: str = Field(..., description="目录名称", max_length=255)
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@field_validator("parent_path", "dir_name")
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@classmethod
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def validate_inputs(cls, value: str, info):
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"""校验创建目录的父路径与目录名，防止路径遍历等不安全输入。
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参数:
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- value (str): 当前字段值。
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- info: Pydantic 校验上下文（含 `field_name`）。
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返回:
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- str: 规范化后的字段值。
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异常:
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- ValueError: 含不安全字符或目录名为空时抛出。
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"""
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# 对于parent_path允许为空字符串（表示根目录）或 '/'，其他情况必须非空
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if info.field_name == "parent_path":
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# 对于parent_path仍然严格检查路径遍历
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if ".." in value or value.startswith("\\"):
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raise ValueError("参数包含不安全字符")
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else: # 对于dir_name仍然严格检查
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if not value or len(value.strip()) == 0:
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raise ValueError("参数不能为空")
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if ".." in value or value.startswith(("/", "\\")):
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raise ValueError("参数包含不安全字符")
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return value.strip()
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class ResourceSearchQueryParam(BaseModel):
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"""资源搜索查询参数"""
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name: str | None = Field(None, description="搜索关键词")
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path: str | None = Field(None, description="目录路径")
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include_hidden: bool = Field(False, description="是否包含隐藏文件")
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