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using IOL.Helpers;
namespace BlobBin;
public class WallE : BackgroundService
{
public IServiceProvider Services { get; }
private readonly ILogger<WallE> _logger;
public WallE(IServiceProvider services,
ILogger<WallE> logger) {
Services = services;
_logger = logger;
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken) {
_logger.LogInformation("WallE is running.");
await DoWork(stoppingToken);
}
private async Task DoWork(CancellationToken stoppingToken) {
_logger.LogInformation("WallE is working.");
using var scope = Services.CreateScope();
var eva = scope.ServiceProvider.GetRequiredService<Eva>();
var pastes = eva.Pastes.Where(c => c.DeletedAt != default || c.AutoDeleteAfter != default)
.Select(c => new Paste() {
Id = c.Id,
DeletedAt = c.DeletedAt,
AutoDeleteAfter = c.AutoDeleteAfter,
CreatedAt = c.CreatedAt
})
.ToList();
var files = eva.Files
.Where(c => c.DeletedAt != default || c.AutoDeleteAfter != default)
.Select(c => new File() {
Id = c.Id,
DeletedAt = c.DeletedAt,
AutoDeleteAfter = c.AutoDeleteAfter,
CreatedAt = c.CreatedAt
})
.ToList();
var now = DateTime.UtcNow;
foreach (var file in files) {
var path = Path.Combine(Tools.GetFilesDirectoryPath(), file.Id.ToString());
if (DateTime.Compare(now, file.DeletedAt?.AddDays(7) ?? DateTime.MinValue) > 0) {
System.IO.File.Delete(path);
eva.Files.Remove(file);
} else if (file.AutoDeleteAfter.HasValue()) {
var autoDeleteDateTime = file.CreatedAt.Add(Tools.ParseHumanTimeSpan(file.AutoDeleteAfter));
if (DateTime.Compare(now, autoDeleteDateTime) > 0) {
System.IO.File.Delete(path);
eva.Files.Remove(file);
}
}
}
// If the file has lived more than +7 days from when it should be automatically deleted, delete the file completely.
foreach (var paste in pastes) {
if (DateTime.Compare(now, paste.DeletedAt?.AddDays(7) ?? DateTime.MinValue) > 0) {
eva.Pastes.Remove(paste);
} else if (paste.AutoDeleteAfter.HasValue()) {
var autoDeleteDateTime = paste.CreatedAt.Add(Tools.ParseHumanTimeSpan(paste.AutoDeleteAfter));
if (DateTime.Compare(now, autoDeleteDateTime) > 0) {
eva.Pastes.Remove(paste);
}
}
}
}
public override async Task StopAsync(CancellationToken stoppingToken) {
_logger.LogInformation("WallE is stopping.");
await base.StopAsync(stoppingToken);
}
}
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