文件（夹）删除-防数据恢复

dzxsl

可通过拖拽、选择方式选择文件或者文件夹进行删除，可有效防止数据被软件恢复。

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2025-4-7 14:09 上传

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源代码

编译好的链接：https://pan.baidu.com/s/1kZCRBbWi6F6iD3FWoTVAuA 提取码：52pj

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import os import random import sys import threading import shutil import tkinter as tk from tkinter import ttk, filedialog, messagebox, END from tkinterdnd2 import TkinterDnD, DND_FILES   def secure_delete(file_path, passes=3, progress_callback=None):       """     安全删除文件，通过多次覆盖文件内容防止数据恢复           参数:         file_path (str): 要删除的文件路径         passes (int): 覆盖次数（默认3次）               返回:         bool: 成功返回True，失败返回False     """     try:         if not os.path.isfile(file_path):             raise ValueError(f"文件 {file_path} 不存在")           file_size = os.path.getsize(file_path)                   with open(file_path, 'br+') as f:  # 二进制读写模式             for pass_num in range(passes):                 # 生成覆盖模式描述                 patterns = [                     lambda n: os.urandom(n),                # 随机字节                     lambda n: bytes([0xFF] * n),            # 全1                     lambda n: bytes([0x00] * n),           # 全0                     lambda n: bytes([0xAA] * n),            # 1010模式                     lambda n: bytes([0x55] * n)             # 0101模式                 ]                 pattern = patterns[pass_num % len(patterns)]                   f.seek(0)                                   # 分块写入以处理大文件                 chunk_size = 1024 * 1024  # 1MB                 written = 0                 while written < file_size:                     write_size = min(chunk_size, file_size - written)                     data = pattern(write_size)                     f.write(data)                     written += write_size                     # 添加进度回调（确保在主线程更新）                     if progress_callback:                         progress_callback(written, file_size)  # 传入当前写入量和总量                 f.flush()                 os.fsync(f.fileno())  # 确保写入物理介质           # 重命名文件以破坏元数据         temp_name = None         for i in range(3):             try:                 # 在同一目录下创建临时文件                 temp_name = os.path.join(os.path.dirname(file_path), f".{random.randint(0, 9999999999)}.tmp")                 shutil.move(file_path, temp_name)  # 使用 shutil.move 支持跨磁盘驱动器                 break             except Exception as e:                 print(f"重命名失败: {str(e)}", file=sys.stderr)                 continue           # 最终删除文件         if temp_name and os.path.exists(temp_name):             try:                 os.remove(temp_name)             except Exception as e:                 print(f"删除临时文件失败: {str(e)}", file=sys.stderr)                 return False         else:             print("临时文件不存在，可能已被删除", file=sys.stderr)             return False                   return True       except Exception as e:         print(f"删除失败: {str(e)}", file=sys.stderr)         return False   class SecureDeleterGUI(TkinterDnD.Tk):     def __init__(self):         super().__init__()         self.title("文件（夹）永久删除-防恢复")         self.geometry("600x400")         self.configure(bg='#f0f0f0')                   # 初始化拖拽区域标识         self.drop_target_color = '#e0e0e0'         self.normal_bg_color = '#f0f0f0'                   # 创建GUI组件         self.create_widgets()         self.abort_flag = False         # 新增：用于存储所有要删除的文件和文件夹路径         self.target_paths = []               def create_widgets(self):         # 拖拽区域提示标签         self.drop_label = ttk.Label(             self,             text="拖拽文件或文件夹至此区域",             font=('微软雅黑', 14),             relief='ridge',             anchor='center'         )         self.drop_label.pack(pady=20, padx=40, fill=tk.X)                   # 绑定拖拽事件         self.drop_label.drop_target_register(DND_FILES)         self.drop_label.dnd_bind('<<Drop>>', self.on_drop)         self.drop_label.dnd_bind('<<Enter>>', self.on_drag_enter)         self.drop_label.dnd_bind('<<Leave>>', self.on_drag_leave)           # 进度条         self.progress = ttk.Progressbar(             self,             orient=tk.HORIZONTAL,             length=400,             mode='determinate'         )         self.progress.pack(pady=15)           # 日志文本框         self.log_text = tk.Text(             self,             height=12,             wrap=tk.WORD,             bg='white',             font=('Consolas', 9)         )         self.log_text.pack(pady=10, fill=tk.BOTH, expand=True, padx=20)           # 底部控制按钮         control_frame = ttk.Frame(self)         control_frame.pack(pady=10)                   ttk.Button(             control_frame,             text="选择文件",             command=self.select_file         ).grid(row=0, column=0, padx=5)                   ttk.Button(             control_frame,             text="选择文件夹",             command=self.select_folder         ).grid(row=0, column=1, padx=5)                   ttk.Button(             control_frame,             text="开始删除",             command=self.start_deletion         ).grid(row=0, column=2, padx=5)                   ttk.Button(             control_frame,             text="中止操作",             command=self.abort_operation         ).grid(row=0, column=3, padx=5)       def on_drag_enter(self, event):         """拖拽进入时的视觉效果"""         self.drop_label.configure(background=self.drop_target_color)               def on_drag_leave(self, event):         """拖拽离开时恢复颜色"""         self.drop_label.configure(background=self.normal_bg_color)               def on_drop(self, event):         """处理拖拽释放事件"""         self.drop_label.configure(background=self.normal_bg_color)                   # 解析拖拽数据         data = event.data         paths = self.parse_dropped_paths(data)                   if not paths:             self.log("错误：无效的拖拽内容")             return                       # 目前只处理第一个拖拽项         valid_paths = []         for path in paths:             path = path.strip()             if os.path.isfile(path) or os.path.isdir(path):                 valid_paths.append(path)                 if os.path.isfile(path):                     self.log(f"已拖入文件: {path}")                 else:                     self.log(f"已拖入文件夹: {path}")             else:                 self.log(f"错误：无效路径 {path}")           # 新增：将有效路径添加到目标路径列表         self.target_paths.extend(valid_paths)       @staticmethod     def parse_dropped_paths(data):         """跨平台解析拖拽路径"""         # Windows返回格式: {路径1} {路径2}         if data.startswith('{') and data.endswith('}'):             return data[1:-1].split('} {')         # Linux/macOS返回格式: 路径1 路径2 (用空格分隔)         else:             return data.split()       # 以下原有方法保持不变（select_file, select_folder, log等）     # ...（保持与之前版本相同的其他方法）...     def select_file(self):         # 修改为支持多选文件         file_paths = filedialog.askopenfilenames(title="选择要删除的文件")         if file_paths:             # 把多个文件路径添加到目标路径列表             self.target_paths.extend(file_paths)             for file_path in file_paths:                 self.log(f"已选择文件: {file_path}")       def select_folder(self):         # 选择选文件夹         folder_paths = filedialog.askdirectory(title="选择要删除的文件夹")         if folder_paths:             # 把多个文件夹路径添加到目标路径列表             self.target_paths.extend(folder_paths)             for folder_path in folder_paths:                 self.log(f"已选择文件夹: {folder_path}")       def log(self, message):         self.log_text.insert(END, message + "\n")         self.log_text.see(END)         self.update_idletasks()  # 修改此处：self.update_idletasks()       def start_deletion(self):         if not self.target_paths:             messagebox.showwarning("警告", "请先选择文件或文件夹")             return           confirm = messagebox.askyesno("确认删除",f"即将永久删除以下内容：\n{' '.join(self.target_paths)}\n此操作不可恢复！确认继续？")         if not confirm:             return           # 禁用按钮并重置进度条         self.toggle_controls(False)         self.abort_flag = False         self.progress['value'] = 0           # 启动后台线程执行删除         threading.Thread(target=self.process_deletion, daemon=True).start()       def process_deletion(self):         try:             total_items = len(self.target_paths)             current_item = 0             for path in self.target_paths:                 if self.abort_flag:                     self.log("用户中止操作")                     break                 if os.path.isfile(path):                     # 修改：传递具体文件路径                     self.process_single_file(path)                 else:                     # 修改：传递具体文件夹路径                     self.process_folder(path)                 current_item += 1                 self.progress['value'] = (current_item / total_items) * 100         except Exception as e:             self.log(f"发生错误: {str(e)}")         finally:             self.toggle_controls(True)             # 新增：清空目标路径列表             self.target_paths = []       def process_single_file(self, file_path):         # 修改：接收具体文件路径         self.log(f"开始处理文件: {os.path.basename(file_path)}")         success = secure_delete(file_path, progress_callback=self.update_progress)         self.log("文件删除完成" if success else "文件删除失败")       def process_folder(self, folder_path):         # 修改：接收具体文件夹路径         total_files = 0         # 预先统计文件总数         for root, dirs, files in os.walk(folder_path):             total_files += len(files)           if total_files == 0:             self.log("文件夹为空，直接删除该文件夹")             try:                 # 直接删除空文件夹                 shutil.rmtree(folder_path)                 self.log(f"文件夹 {folder_path} 删除完成")             except Exception as e:                 self.log(f"删除文件夹 {folder_path} 失败: {str(e)}")             return           self.log(f"发现 {total_files} 个文件，开始处理...")           current_count = 0         for root, dirs, files in os.walk(folder_path):             for filename in files:                 if self.abort_flag:                     self.log("用户中止操作")                     return                   file_path = os.path.join(root, filename)                 self.log(f"正在处理: {file_path}")                   secure_delete(file_path, progress_callback=self.update_progress)                 current_count += 1                 # 更新单个文件夹内文件处理的进度                 self.progress['value'] = (current_count / total_files) * 100         try:             # 删除已清空文件的文件夹             shutil.rmtree(folder_path)             self.log(f"文件夹 {folder_path} 及其内容删除完成")             self.log(f"已完成所有文件处理，共删除 {current_count} 个文件")         except Exception as e:             self.log(f"删除文件夹 {folder_path} 失败: {str(e)}")                     def update_progress(self, current, total):         def _update():             if total > 0:                 percent = (current / total) * 100                 self.progress['value'] = percent         self.after(0, _update)  # 使用 after 确保线程安全       def toggle_controls(self, enabled):         state = "normal" if enabled else "disabled"         for child in self.winfo_children():             if isinstance(child, ttk.Button):                 child['state'] = state       def abort_operation(self):         self.abort_flag = True         self.log("正在中止当前操作...")     if __name__ == "__main__":     try:         app = SecureDeleterGUI()         app.mainloop()     except ImportError:         print("错误：需要安装 tkinterdnd2 库")         print("安装命令: pip install tkinterdnd2")

少马石

不知道是啥原理，是在删除的地方填充0吗

RielCcc

感觉还实现不了防恢复的效果，有个疑问是被占用的文件或者驱动能删吗，好像不行。不过感谢楼主分享思路。

kaixinguoguo

下载试试看，谢谢分享

mrliuyiming

支持这个

xcgzs

这个东西好啊

xiaoshuimian

覆盖三次感觉不够

52PJ070

试试看效果怎么样，感谢分享！

hexiwo

大哥，给你提供个思路，修改原文件保存（等于破坏了原文件），然后删除，是否可以达到防恢复？

hollywu

一般防删除，先改名，扩展名再删除再擦除比较好

ysjd22

不错，不过电脑上装了火绒，就用火绒自带的了