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using MediaBrowser.Common.Net;
using MediaBrowser.Common.Net.Handlers;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Model.Entities;
using System;
using System.ComponentModel.Composition;
using System.IO;
using System.Net;
using System.Threading.Tasks;
namespace MediaBrowser.Api.HttpHandlers
{
[Export(typeof(BaseHandler))]
public class ImageHandler : BaseHandler
{
public override bool HandlesRequest(HttpListenerRequest request)
{
return ApiService.IsApiUrlMatch("image", request);
}
private string _imagePath;
private async Task<string> GetImagePath()
{
_imagePath = _imagePath ?? await DiscoverImagePath();
return _imagePath;
}
private BaseEntity _sourceEntity;
private async Task<BaseEntity> GetSourceEntity()
{
if (_sourceEntity == null)
{
if (!string.IsNullOrEmpty(QueryString["personname"]))
{
_sourceEntity =
await Kernel.Instance.ItemController.GetPerson(QueryString["personname"]).ConfigureAwait(false);
}
else if (!string.IsNullOrEmpty(QueryString["genre"]))
{
_sourceEntity =
await Kernel.Instance.ItemController.GetGenre(QueryString["genre"]).ConfigureAwait(false);
}
else if (!string.IsNullOrEmpty(QueryString["year"]))
{
_sourceEntity =
await
Kernel.Instance.ItemController.GetYear(int.Parse(QueryString["year"])).ConfigureAwait(false);
}
else if (!string.IsNullOrEmpty(QueryString["studio"]))
{
_sourceEntity =
await Kernel.Instance.ItemController.GetStudio(QueryString["studio"]).ConfigureAwait(false);
}
else if (!string.IsNullOrEmpty(QueryString["userid"]))
{
_sourceEntity = ApiService.GetUserById(QueryString["userid"], false);
}
else
{
_sourceEntity = ApiService.GetItemById(QueryString["id"]);
}
}
return _sourceEntity;
}
private async Task<string> DiscoverImagePath()
{
var entity = await GetSourceEntity().ConfigureAwait(false);
return ImageProcessor.GetImagePath(entity, ImageType, ImageIndex);
}
protected async override Task<ResponseInfo> GetResponseInfo()
{
string path = await GetImagePath().ConfigureAwait(false);
ResponseInfo info = new ResponseInfo
{
CacheDuration = TimeSpan.FromDays(365),
ContentType = MimeTypes.GetMimeType(path)
};
DateTime? date = File.GetLastWriteTimeUtc(path);
// If the file does not exist it will return jan 1, 1601
// http://msdn.microsoft.com/en-us/library/system.io.file.getlastwritetimeutc.aspx
if (date.Value.Year == 1601)
{
if (!File.Exists(path))
{
info.StatusCode = 404;
date = null;
}
}
info.DateLastModified = date;
return info;
}
private int ImageIndex
{
get
{
string val = QueryString["index"];
if (string.IsNullOrEmpty(val))
{
return 0;
}
return int.Parse(val);
}
}
private int? Height
{
get
{
string val = QueryString["height"];
if (string.IsNullOrEmpty(val))
{
return null;
}
return int.Parse(val);
}
}
private int? Width
{
get
{
string val = QueryString["width"];
if (string.IsNullOrEmpty(val))
{
return null;
}
return int.Parse(val);
}
}
private int? MaxHeight
{
get
{
string val = QueryString["maxheight"];
if (string.IsNullOrEmpty(val))
{
return null;
}
return int.Parse(val);
}
}
private int? MaxWidth
{
get
{
string val = QueryString["maxwidth"];
if (string.IsNullOrEmpty(val))
{
return null;
}
return int.Parse(val);
}
}
private int? Quality
{
get
{
string val = QueryString["quality"];
if (string.IsNullOrEmpty(val))
{
return null;
}
return int.Parse(val);
}
}
private ImageType ImageType
{
get
{
string imageType = QueryString["type"];
if (string.IsNullOrEmpty(imageType))
{
return ImageType.Primary;
}
return (ImageType)Enum.Parse(typeof(ImageType), imageType, true);
}
}
protected override async Task WriteResponseToOutputStream(Stream stream)
{
var entity = await GetSourceEntity().ConfigureAwait(false);
ImageProcessor.ProcessImage(entity, ImageType, ImageIndex, stream, Width, Height, MaxWidth, MaxHeight, Quality);
}
}
}
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