愛比的新手筆記

using Microsoft.AspNetCore.Mvc;

namespace xxxxxx.Controllers;

[ApiController]
[Route("[controller]")]
public class FileController : ControllerBase
{
    [HttpGet]
    public IActionResult ListData(string path)
    {
        try
        {
            if (Directory.Exists(path))
            {
                var entries = Directory.GetFileSystemEntries(path);
                var result = entries.GroupBy(entry => Directory.Exists(entry) ? "DIR" : "File")
                             .ToDictionary(g => g.Key
                             			, g => g.Select(entry => Path.GetFileName(entry)).ToList());

                return Ok(result);
            }
            else if (System.IO.File.Exists(path))
                return GetFile(path);
            return NotFound("Directory not found");
        }
        catch (Exception ex)
        {
            return StatusCode(500, $"error: {ex.ToString()}");
        }
    }

    private IActionResult GetFile(string path)
    {
        var fileBytes = System.IO.File.ReadAllBytes(path);
        var fileName = Path.GetFileName(path);
        return File(fileBytes, "application/octet-stream", fileName);
    }

    [HttpPost]
    public async Task<IActionResult> UploadFile(string path, IFormFile file)
    {
        try
        {
            if (file == null || file.Length == 0)
                return BadRequest("No file uploaded");

            CreateDirectory(path);
            var filePath = Path.Combine(path, file.FileName);

            if (System.IO.File.Exists(filePath))
            {
                var fileInfo = new FileInfo(filePath);
                fileInfo.IsReadOnly = false;
            }

            using (var stream = new FileStream(filePath, FileMode.Create))
                await file.CopyToAsync(stream);

            return Ok("File uploaded successfully");
        }
        catch (Exception ex)
        {
            return StatusCode(500, $"error: {ex.ToString()}");
        }
    }

    [HttpDelete]
    public IActionResult DeleteData(string path, string repeat)
    {
        try
        {
            if (path != repeat)
                return BadRequest("Need check again");
            else if (Directory.Exists(path))
            {
                var dirInfo = new DirectoryInfo(path);
                dirInfo.Attributes &= ~FileAttributes.ReadOnly;
                Directory.Delete(path, true);
                return Ok("Directory deleted successfully");
            }
            else if (System.IO.File.Exists(path))
            {
                var fileInfo = new FileInfo(path);
                fileInfo.IsReadOnly = false;
                System.IO.File.Delete(path);
                return Ok("File deleted successfully");
            }
            return NotFound("Path not found");
        }
        catch (Exception ex)
        {
            return StatusCode(500, $"error: {ex.ToString()}");
        }
    }

    [HttpPatch]
    public IActionResult CreateDirectory(string path)
    {
        try
        {
            if (!Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
                return Ok("Directory created successfully");
            }
            return BadRequest("Directory already exists");
        }
        catch (Exception ex)
        {
            return StatusCode(500, $"error: {ex.ToString()}");
        }
    }
}

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