1 // OpenTween - Client of Twitter
2 // Copyright (c) 2013 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
3 // All rights reserved.
5 // This file is part of OpenTween.
7 // This program is free software; you can redistribute it and/or modify it
8 // under the terms of the GNU General Public License as published by the Free
9 // Software Foundation; either version 3 of the License, or (at your option)
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 // You should have received a copy of the GNU General Public License along
18 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
19 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
20 // Boston, MA 02110-1301, USA.
23 using System.Collections.Generic;
28 using System.Threading.Tasks;
29 using System.Threading;
31 namespace OpenTween.Thumbnail.Services
34 /// Twitter の DM に添付された画像をサムネイル表示するためのクラス
36 class TonTwitterCom : IThumbnailService
39 /// OAuth のトークン等を設定させるためのデリゲート
41 internal static Action<HttpConnectionOAuth> InitializeOAuthToken;
43 public override ThumbnailInfo GetThumbnailInfo(string url, PostClass post)
45 if (InitializeOAuthToken == null)
48 if (!url.StartsWith(@"https://ton.twitter.com/1.1/ton/data/"))
51 return new TonTwitterCom.Thumbnail
56 FullSizeImageUrl = url,
60 public class Thumbnail : ThumbnailInfo
62 public override Task<MemoryImage> LoadThumbnailImageAsync(CancellationToken token)
64 return Task.Factory.StartNew(() =>
66 var oauth = new HttpOAuthApiProxy();
67 TonTwitterCom.InitializeOAuthToken(oauth);
69 Stream response = null;
70 var statusCode = oauth.GetContent("GET", new Uri(this.ThumbnailUrl), null, ref response, MyCommon.GetUserAgentString());
74 if (statusCode == HttpStatusCode.OK)
75 return MemoryImage.CopyFromStream(response);
77 throw new WebException(statusCode.ToString(), WebExceptionStatus.ProtocolError);
80 token, TaskCreationOptions.None, TaskScheduler.Default); // 明示しないと TaskScheduler.Current になり UI スレッド上で実行されてしまう