DeleteExport.cs

using System;
using System.IO;
using System.Threading.Tasks;
using Waher.Content;
using Waher.Content.Text;
using Waher.Events;
using Waher.IoTGateway.WebResources.ExportFormats;
using Waher.Networking.HTTP;
 
namespace Waher.IoTGateway.WebResources
{
    public class DeleteExport : HttpSynchronousResource, IHttpPostMethod
    {
        public DeleteExport()
            : base("/DeleteExport")
        {
        }
 
        public override bool HandlesSubPaths => false;
 
        public override bool UserSessions => true;
 
        public bool AllowsPOST => true;
 
        public async Task POST(HttpRequest Request, HttpResponse Response)
        {
            Gateway.AssertUserAuthenticated(Request, "Admin.Data.Backup");
 
            if (!Request.HasData)
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            ContentResponse Content = await Request.DecodeDataAsync();
            if (Content.HasError || !(Content.Decoded is string FileName))
            {
                await Response.SendResponse(new BadRequestException());
                return;
            }
 
            string Dir;
 
            if (FileName.EndsWith(".key", StringComparison.CurrentCultureIgnoreCase))
                Dir = await Export.GetFullKeyExportFolderAsync();
            else
                Dir = await Export.GetFullExportFolderAsync();
 
            if (!Directory.Exists(Dir))
            {
                await Response.SendResponse(new NotFoundException("Folder not found: " + Dir));
                return;
            }
 
            string FullFileName = Dir + Path.DirectorySeparatorChar + FileName;
            if (!File.Exists(FullFileName))
            {
                await Response.SendResponse(new NotFoundException("File not found: " + FullFileName));
                return;
            }
 
            File.Delete(FullFileName);
 
            Log.Informational("Export deleted.", FileName);
 
            Response.StatusCode = 200;
            Response.StatusMessage = "OK";
            Response.ContentType = PlainTextCodec.DefaultContentType;
            await Response.Write("1");
 
            ExportFormat.UpdateClientsFileDeleted(FileName);
        }
 
    }
}