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Lidarr/NzbDrone.Core/MediaCover/CoverAlreadyExistsSpecifica...

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using NzbDrone.Common;
namespace NzbDrone.Core.MediaCover
{
public interface ICoverExistsSpecification
{
bool AlreadyExists(string url, string paht);
}
public class CoverAlreadyExistsSpecification : ICoverExistsSpecification
{
private readonly IDiskProvider _diskProvider;
private readonly IHttpProvider _httpProvider;
public CoverAlreadyExistsSpecification(IDiskProvider diskProvider, IHttpProvider httpProvider)
{
_diskProvider = diskProvider;
_httpProvider = httpProvider;
}
public bool AlreadyExists(string url, string path)
{
if (!_diskProvider.FileExists(path))
{
return false;
}
var headers = _httpProvider.DownloadHeader(url);
string sizeString = null;
if (headers.TryGetValue(HttpProvider.ContentLenghtHeader, out sizeString))
{
int size;
int.TryParse(sizeString, out size);
var fileSize = _diskProvider.GetFileSize(path);
if (fileSize != size)
{
return false;
}
}
return true;
}
}
}