OpenTween/Connection/yfrog.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2007-2011 kiri_feather (@kiri_feather) <kiri.feather@gmail.com>
   3 //           (c) 2008-2011 Moz (@syo68k)
   4 //           (c) 2008-2011 takeshik (@takeshik) <http://www.takeshik.org/>
   5 //           (c) 2010-2011 anis774 (@anis774) <http://d.hatena.ne.jp/anis774/>
   6 //           (c) 2010-2011 fantasticswallow (@f_swallow) <http://twitter.com/f_swallow>
   7 //           (c) 2011      spinor (@tplantd) <http://d.hatena.ne.jp/spinor/>
   8 //           (c) 2014      kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
   9 // All rights reserved.
  10 //
  11 // This file is part of OpenTween.
  12 //
  13 // This program is free software; you can redistribute it and/or modify it
  14 // under the terms of the GNU General Public License as published by the Free
  15 // Software Foundation; either version 3 of the License, or (at your option)
  16 // any later version.
  17 //
  18 // This program is distributed in the hope that it will be useful, but
  19 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  20 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  21 // for more details.
  22 //
  23 // You should have received a copy of the GNU General Public License along
  24 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
  25 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  26 // Boston, MA 02110-1301, USA.
  27
  28 using System;
  29 using System.Collections.Generic;
  30 using System.IO;
  31 using System.Linq;
  32 using System.Net;
  33 using System.Threading.Tasks;
  34 using System.Xml;
  35 using System.Xml.Linq;
  36 using System.Xml.XPath;
  37 using OpenTween.Api.DataModel;
  38
  39 namespace OpenTween.Connection
  40 {
  41     public class yfrog : IMediaUploadService
  42     {
  43         private readonly string[] pictureExt = new[] { ".jpg", ".jpeg", ".gif", ".png" };
  44         private readonly long MaxFileSize = 5L * 1024 * 1024;
  45
  46         private readonly Twitter tw;
  47         private readonly YfrogApi yfrogApi;
  48
  49         private TwitterConfiguration twitterConfig;
  50
  51         public yfrog(Twitter twitter, TwitterConfiguration twitterConfig)
  52         {
  53             this.tw = twitter;
  54             this.twitterConfig = twitterConfig;
  55
  56             this.yfrogApi = new YfrogApi(twitter.AccessToken, twitter.AccessTokenSecret);
  57         }
  58
  59         public int MaxMediaCount
  60         {
  61             get { return 1; }
  62         }
  63
  64         public string SupportedFormatsStrForDialog
  65         {
  66             get
  67             {
  68                 return "Image Files(*.gif;*.jpg;*.jpeg;*.png)|*.gif;*.jpg;*.jpeg;*.png";
  69             }
  70         }
  71
  72         public bool CheckFileExtension(string fileExtension)
  73         {
  74             return this.pictureExt.Contains(fileExtension.ToLowerInvariant());
  75         }
  76
  77         public bool CheckFileSize(string fileExtension, long fileSize)
  78         {
  79             var maxFileSize = this.GetMaxFileSize(fileExtension);
  80             return maxFileSize == null || fileSize <= maxFileSize.Value;
  81         }
  82
  83         public long? GetMaxFileSize(string fileExtension)
  84         {
  85             return MaxFileSize;
  86         }
  87
  88         public async Task PostStatusAsync(string text, long? inReplyToStatusId, IMediaItem[] mediaItems)
  89         {
  90             if (mediaItems == null)
  91                 throw new ArgumentNullException(nameof(mediaItems));
  92
  93             if (mediaItems.Length != 1)
  94                 throw new ArgumentOutOfRangeException(nameof(mediaItems));
  95
  96             var item = mediaItems[0];
  97
  98             if (item == null)
  99                 throw new ArgumentException("Err:Media not specified.");
 100
 101             if (!item.Exists)
 102                 throw new ArgumentException("Err:Media not found.");
 103
 104             var xml = await this.yfrogApi.UploadFileAsync(item, text)
 105                 .ConfigureAwait(false);
 106
 107             var imageUrlElm = xml.XPathSelectElement("/rsp/mediaurl");
 108             if (imageUrlElm == null)
 109                 throw new WebApiException("Invalid API response", xml.ToString());
 110
 111             var textWithImageUrl = text + " " + imageUrlElm.Value.Trim();
 112
 113             await this.tw.PostStatus(textWithImageUrl, inReplyToStatusId)
 114                 .ConfigureAwait(false);
 115         }
 116
 117         public int GetReservedTextLength(int mediaCount)
 118         {
 119             return this.twitterConfig.ShortUrlLength;
 120         }
 121
 122         public void UpdateTwitterConfiguration(TwitterConfiguration config)
 123         {
 124             this.twitterConfig = config;
 125         }
 126
 127         public class YfrogApi : HttpConnectionOAuthEcho
 128         {
 129             private static readonly Uri UploadEndpoint = new Uri("https://yfrog.com/api/xauth_upload");
 130
 131             public YfrogApi(string twitterAccessToken, string twitterAccessTokenSecret)
 132                 : base(new Uri("http://api.twitter.com/"), new Uri("https://api.twitter.com/1.1/account/verify_credentials.xml"))
 133             {
 134                 this.Initialize(ApplicationSettings.TwitterConsumerKey, ApplicationSettings.TwitterConsumerSecret,
 135                     twitterAccessToken, twitterAccessTokenSecret, "", "");
 136
 137                 this.InstanceTimeout = 60000;
 138             }
 139
 140             /// <summary>
 141             /// 画像のアップロードを行います
 142             /// </summary>
 143             /// <exception cref="WebApiException"/>
 144             /// <exception cref="XmlException"/>
 145             public async Task<XDocument> UploadFileAsync(IMediaItem item, string message)
 146             {
 147                 // 参照: http://twitter.yfrog.com/page/api#a1
 148
 149                 var param = new Dictionary<string, string>
 150                 {
 151                     ["key"] = ApplicationSettings.YfrogApiKey,
 152                 };
 153                 var paramFiles = new List<KeyValuePair<string, IMediaItem>>
 154                 {
 155                     new KeyValuePair<string, IMediaItem>("media", item),
 156                 };
 157                 var response = "";
 158
 159                 var uploadTask = Task.Run(() => this.GetContent(HttpConnection.PostMethod,
 160                     UploadEndpoint, param, paramFiles, ref response, null, null));
 161
 162                 var ret = await uploadTask.ConfigureAwait(false);
 163
 164                 if (ret != HttpStatusCode.OK)
 165                     throw new WebApiException("Err:" + ret, response);
 166
 167                 return XDocument.Parse(response);
 168             }
 169         }
 170     }
 171 }