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315 lines (286 loc) · 13.5 KB
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using elFinder.NetCore.Drawing;
using elFinder.NetCore.Drivers;
using elFinder.NetCore.Exceptions;
using elFinder.NetCore.Helpers;
using Microsoft.Extensions.Primitives;
using System.Net;
namespace elFinder.NetCore;
/// <summary>
/// Represents a connector which processes elFinder requests
/// </summary>
public class Connector
{
public MimeDetectOption MimeDetect { get; set; } = MimeDetectOption.Auto;
private readonly IDriver driver;
public Connector(IDriver driver)
{
this.driver = driver;
}
public async Task<IActionResult> ProcessAsync(HttpRequest request)
{
try
{
return await ProcessCoreAsync(request);
}
catch (FileNotFoundException)
{
return Error.FileNotFound();
}
catch (DirectoryNotFoundException)
{
return Error.FolderNotFound();
}
catch (FileTypeNotAllowedException)
{
return Error.FileTypeNotAllowed();
}
}
protected async Task<IActionResult> ProcessCoreAsync(HttpRequest request)
{
var parameters = request.Query.Any()
? request.Query.ToDictionary(k => k.Key, v => v.Value)
: request.Form.ToDictionary(k => k.Key, v => v.Value);
string cmd = parameters.GetValueOrDefault("cmd");
if (string.IsNullOrEmpty(cmd))
{
return Error.UnknownCommand();
}
switch (cmd)
{
case "archive":
{
var parentPath = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var paths = await GetFullPathArrayAsync(parameters.GetValueOrDefault("targets[]"));
var name = parameters.GetValueOrDefault("name");
var type = parameters.GetValueOrDefault("type");
return await driver.ArchiveAsync(parentPath, paths, name, type);
}
case "dim":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
return await driver.DimAsync(path);
}
case "duplicate":
{
var targets = await GetFullPathArrayAsync(parameters.GetValueOrDefault("targets[]"));
return await driver.DuplicateAsync(targets);
}
case "extract":
{
var fullPath = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var makedir = parameters.GetValueOrDefault("makedir");
return await driver.ExtractAsync(fullPath, makedir == "1");
}
case "file":
{
var cPath = parameters.GetValueOrDefault("cpath");
var reqId = parameters.GetValueOrDefault("reqid");
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var result = await driver.FileAsync(path, parameters.GetValueOrDefault("download") == "1");
if (!string.IsNullOrEmpty(cPath))
{
// API >= 2.1.39
request.HttpContext.Response.Cookies.Append($"elfdl{reqId}", "1");
}
return result;
}
case "get":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
return await driver.GetAsync(path);
}
case "ls":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var intersects = parameters.GetValueOrDefault("intersect[]");
var mimeTypes = MimeDetect == MimeDetectOption.Internal
? parameters.GetValueOrDefault("mimes[]")
: default;
return await driver.ListAsync(path, intersects, mimeTypes);
}
case "mkdir":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var name = parameters.GetValueOrDefault("name");
var dirs = parameters.GetValueOrDefault("dirs[]");
return await driver.MakeDirAsync(path, name, dirs);
}
case "mkfile":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var name = parameters.GetValueOrDefault("name");
return await driver.MakeFileAsync(path, name);
}
case "open":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var mimeTypes = MimeDetect == MimeDetectOption.Internal
? parameters.GetValueOrDefault("mimes[]")
: default;
if (parameters.GetValueOrDefault("init") == "1")
{
return await driver.InitAsync(path, mimeTypes);
}
else
{
return await driver.OpenAsync(path, parameters.GetValueOrDefault("tree") == "1", mimeTypes);
}
}
case "parents":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
return await driver.ParentsAsync(path);
}
case "paste":
{
var paths = await GetFullPathArrayAsync(parameters.GetValueOrDefault("targets[]"));
var dst = parameters.GetValueOrDefault("dst");
bool cut = parameters.GetValueOrDefault("cut") == "1";
var renames = parameters.GetValueOrDefault("ranames[]");
var suffix = parameters.GetValueOrDefault("suffix");
return await driver.PasteAsync(await driver.ParsePathAsync(dst), paths, cut, renames, suffix);
}
case "put":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var content = parameters.GetValueOrDefault("content");
var encoding = parameters.GetValueOrDefault("encoding");
if (encoding == "scheme")
{
//TODO: It's worth noting that for optimal performance and resource management,
// HttpClient should not be instantiated for each request in a real-world application.
// Instead, it's typically best to create a single or few long-lived HttpClient instances and reuse
// them for all HTTP calls. This can be achieved through dependency injection or a static/singleton
// instance, depending on your application's architecture.
using var client = new HttpClient();
var data = await client.GetByteArrayAsync(new Uri(content));
return await driver.PutAsync(path, data);
}
else
return await driver.PutAsync(path, content);
}
case "rename":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var name = parameters.GetValueOrDefault("name");
return await driver.RenameAsync(path, name);
}
case "resize":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
switch (parameters.GetValueOrDefault("mode"))
{
case "resize":
return await driver.ResizeAsync(
path,
int.Parse(parameters.GetValueOrDefault("width")),
int.Parse(parameters.GetValueOrDefault("height")));
case "crop":
return await driver.CropAsync(
path,
int.Parse(parameters.GetValueOrDefault("x")),
int.Parse(parameters.GetValueOrDefault("y")),
int.Parse(parameters.GetValueOrDefault("width")),
int.Parse(parameters.GetValueOrDefault("height")));
case "rotate":
return await driver.RotateAsync(path, int.Parse(parameters.GetValueOrDefault("degree")));
default:
return Error.UnknownCommand();
}
}
case "rm":
{
var paths = await GetFullPathArrayAsync(parameters.GetValueOrDefault("targets[]"));
return await driver.RemoveAsync(paths);
}
case "search":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var query = parameters.GetValueOrDefault("q");
var mimeTypes = MimeDetect == MimeDetectOption.Internal
? parameters.GetValueOrDefault("mimes[]")
: default;
return await driver.SearchAsync(path, query, mimeTypes);
}
case "size":
{
var paths = new StringValues(parameters.Where(p => p.Key.StartsWith("target")).Select(p => (string)p.Value).ToArray());
return await driver.SizeAsync(await GetFullPathArrayAsync(paths));
}
case "tmb":
{
var targets = await GetFullPathArrayAsync(parameters.GetValueOrDefault("targets[]"));
return await driver.ThumbsAsync(targets);
}
case "tree":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
return await driver.TreeAsync(path);
}
case "upload":
{
var path = await driver.ParsePathAsync(parameters.GetValueOrDefault("target"));
var uploadPath = await GetFullPathArrayAsync(parameters.GetValueOrDefault("upload_path[]"));
bool overwrite = parameters.GetValueOrDefault("overwrite") != "0";
var renames = parameters.GetValueOrDefault("renames[]");
var suffix = parameters.GetValueOrDefault("suffix");
return await driver.UploadAsync(path, request.Form.Files, overwrite, uploadPath, renames, suffix);
}
case "zipdl":
{
var targets = parameters.GetValueOrDefault("targets[]");
var download = parameters.GetValueOrDefault("download");
if (download != "1")
{
var targetPaths = await GetFullPathArrayAsync(targets);
return await driver.ZipDownloadAsync(targetPaths);
}
var cwdPath = await driver.ParsePathAsync(targets[0]);
string archiveFileKey = targets[1];
string downloadFileName = targets[2];
string mimeType = targets[3];
return await driver.ZipDownloadAsync(cwdPath, archiveFileKey, downloadFileName, mimeType);
}
default: return Error.UnknownCommand();
}
}
/// <summary>
/// Get actual filesystem path by hash
/// </summary>
/// <param name="hash">Hash of file or directory</param>
public async Task<IFile> GetFileByHashAsync(string hash)
{
var path = await driver.ParsePathAsync(hash);
return !path.IsDirectory ? path.File : null;
}
public async Task<IActionResult> GetThumbnailAsync(HttpRequest request, HttpResponse response, string hash)
{
if (hash != null)
{
var path = await driver.ParsePathAsync(hash);
if (!path.IsDirectory && CanCreateThumbnail(path, path.RootVolume.PictureEditor))
{
//if (!await HttpCacheHelper.IsFileFromCache(path.File, request, response))
//{
var thumb = await path.GenerateThumbnailAsync();
return new FileStreamResult(thumb.ImageStream, thumb.MimeType);
//}
//else
//{
// response.ContentType = Utils.GetMimeType(path.RootVolume.PictureEditor.ConvertThumbnailExtension(path.File.Extension));
//response.End();
//}
}
}
return new EmptyResult();
}
private bool CanCreateThumbnail(FullPath path, IPictureEditor pictureEditor)
{
return !string.IsNullOrEmpty(path.RootVolume.ThumbnailUrl) && pictureEditor.CanProcessFile(path.File.Extension);
}
private async Task<IEnumerable<FullPath>> GetFullPathArrayAsync(StringValues targets)
{
var tasks = targets.Select(async t => await driver.ParsePathAsync(t));
return await Task.WhenAll(tasks);
}
}