OpenTween/Twitter.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      Egtra (@egtra) <http://dev.activebasic.com/egtra/>
   8 //           (c) 2013      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.Diagnostics;
  29 using System.IO;
  30 using System.Linq;
  31 using System.Net;
  32 using System.Net.Http;
  33 using System.Runtime.CompilerServices;
  34 using System.Runtime.Serialization;
  35 using System.Runtime.Serialization.Json;
  36 using System.Text;
  37 using System.Text.RegularExpressions;
  38 using System.Threading;
  39 using System.Threading.Tasks;
  40 using System.Web;
  41 using System.Xml;
  42 using System.Xml.Linq;
  43 using System.Xml.XPath;
  44 using System;
  45 using System.Reflection;
  46 using System.Collections.Generic;
  47 using System.Drawing;
  48 using System.Windows.Forms;
  49 using OpenTween.Api;
  50 using OpenTween.Api.DataModel;
  51 using OpenTween.Connection;
  52 using OpenTween.Models;
  53
  54 namespace OpenTween
  55 {
  56     public class Twitter : IDisposable
  57     {
  58         #region Regexp from twitter-text-js
  59
  60         // The code in this region code block incorporates works covered by
  61         // the following copyright and permission notices:
  62         //
  63         //   Copyright 2011 Twitter, Inc.
  64         //
  65         //   Licensed under the Apache License, Version 2.0 (the "License"); you
  66         //   may not use this work except in compliance with the License. You
  67         //   may obtain a copy of the License in the LICENSE file, or at:
  68         //
  69         //   http://www.apache.org/licenses/LICENSE-2.0
  70         //
  71         //   Unless required by applicable law or agreed to in writing, software
  72         //   distributed under the License is distributed on an "AS IS" BASIS,
  73         //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  74         //   implied. See the License for the specific language governing
  75         //   permissions and limitations under the License.
  76
  77         //Hashtag用正規表現
  78         private const string LATIN_ACCENTS = @"\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff\u0100-\u024f\u0253\u0254\u0256\u0257\u0259\u025b\u0263\u0268\u026f\u0272\u0289\u028b\u02bb\u1e00-\u1eff";
  79         private const string NON_LATIN_HASHTAG_CHARS = @"\u0400-\u04ff\u0500-\u0527\u1100-\u11ff\u3130-\u3185\uA960-\uA97F\uAC00-\uD7AF\uD7B0-\uD7FF";
  80         //private const string CJ_HASHTAG_CHARACTERS = @"\u30A1-\u30FA\uFF66-\uFF9F\uFF10-\uFF19\uFF21-\uFF3A\uFF41-\uFF5A\u3041-\u3096\u3400-\u4DBF\u4E00-\u9FFF\u20000-\u2A6DF\u2A700-\u2B73F\u2B740-\u2B81F\u2F800-\u2FA1F";
  81         private const string CJ_HASHTAG_CHARACTERS = @"\u30A1-\u30FA\u30FC\u3005\uFF66-\uFF9F\uFF10-\uFF19\uFF21-\uFF3A\uFF41-\uFF5A\u3041-\u309A\u3400-\u4DBF\p{IsCJKUnifiedIdeographs}";
  82         private const string HASHTAG_BOUNDARY = @"^|$|\s|「|」|。|\.|!";
  83         private const string HASHTAG_ALPHA = "[a-z_" + LATIN_ACCENTS + NON_LATIN_HASHTAG_CHARS + CJ_HASHTAG_CHARACTERS + "]";
  84         private const string HASHTAG_ALPHANUMERIC = "[a-z0-9_" + LATIN_ACCENTS + NON_LATIN_HASHTAG_CHARS + CJ_HASHTAG_CHARACTERS + "]";
  85         private const string HASHTAG_TERMINATOR = "[^a-z0-9_" + LATIN_ACCENTS + NON_LATIN_HASHTAG_CHARS + CJ_HASHTAG_CHARACTERS + "]";
  86         public const string HASHTAG = "(" + HASHTAG_BOUNDARY + ")(#|＃)(" + HASHTAG_ALPHANUMERIC + "*" + HASHTAG_ALPHA + HASHTAG_ALPHANUMERIC + "*)(?=" + HASHTAG_TERMINATOR + "|" + HASHTAG_BOUNDARY + ")";
  87         //URL正規表現
  88         private const string url_valid_preceding_chars = @"(?:[^A-Za-z0-9@＠$#＃\ufffe\ufeff\uffff\u202a-\u202e]|^)";
  89         public const string url_invalid_without_protocol_preceding_chars = @"[-_./]$";
  90         private const string url_invalid_domain_chars = @"\!'#%&'\(\)*\+,\\\-\.\/:;<=>\?@\[\]\^_{|}~\$\u2000-\u200a\u0009-\u000d\u0020\u0085\u00a0\u1680\u180e\u2028\u2029\u202f\u205f\u3000\ufffe\ufeff\uffff\u202a-\u202e";
  91         private const string url_valid_domain_chars = @"[^" + url_invalid_domain_chars + "]";
  92         private const string url_valid_subdomain = @"(?:(?:" + url_valid_domain_chars + @"(?:[_-]|" + url_valid_domain_chars + @")*)?" + url_valid_domain_chars + @"\.)";
  93         private const string url_valid_domain_name = @"(?:(?:" + url_valid_domain_chars + @"(?:-|" + url_valid_domain_chars + @")*)?" + url_valid_domain_chars + @"\.)";
  94         private const string url_valid_GTLD = @"(?:(?:aero|asia|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|tel|travel|xxx)(?=[^0-9a-zA-Z]|$))";
  95         private const string url_valid_CCTLD = @"(?:(?:ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|ss|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|za|zm|zw)(?=[^0-9a-zA-Z]|$))";
  96         private const string url_valid_punycode = @"(?:xn--[0-9a-z]+)";
  97         private const string url_valid_domain = @"(?<domain>" + url_valid_subdomain + "*" + url_valid_domain_name + "(?:" + url_valid_GTLD + "|" + url_valid_CCTLD + ")|" + url_valid_punycode + ")";
  98         public const string url_valid_ascii_domain = @"(?:(?:[a-z0-9" + LATIN_ACCENTS + @"]+)\.)+(?:" + url_valid_GTLD + "|" + url_valid_CCTLD + "|" + url_valid_punycode + ")";
  99         public const string url_invalid_short_domain = "^" + url_valid_domain_name + url_valid_CCTLD + "$";
 100         private const string url_valid_port_number = @"[0-9]+";
 101
 102         private const string url_valid_general_path_chars = @"[a-z0-9!*';:=+,.$/%#\[\]\-_~|&" + LATIN_ACCENTS + "]";
 103         private const string url_balance_parens = @"(?:\(" + url_valid_general_path_chars + @"+\))";
 104         private const string url_valid_path_ending_chars = @"(?:[+\-a-z0-9=_#/" + LATIN_ACCENTS + "]|" + url_balance_parens + ")";
 105         private const string pth = "(?:" +
 106             "(?:" +
 107                 url_valid_general_path_chars + "*" +
 108                 "(?:" + url_balance_parens + url_valid_general_path_chars + "*)*" +
 109                 url_valid_path_ending_chars +
 110                 ")|(?:@" + url_valid_general_path_chars + "+/)" +
 111             ")";
 112         private const string qry = @"(?<query>\?[a-z0-9!?*'();:&=+$/%#\[\]\-_.,~|]*[a-z0-9_&=#/])?";
 113         public const string rgUrl = @"(?<before>" + url_valid_preceding_chars + ")" +
 114                                     "(?<url>(?<protocol>https?://)?" +
 115                                     "(?<domain>" + url_valid_domain + ")" +
 116                                     "(?::" + url_valid_port_number + ")?" +
 117                                     "(?<path>/" + pth + "*)?" +
 118                                     qry +
 119                                     ")";
 120
 121         #endregion
 122
 123         /// <summary>
 124         /// Twitter API のステータスページのURL
 125         /// </summary>
 126         public const string ServiceAvailabilityStatusUrl = "https://status.io.watchmouse.com/7617";
 127
 128         /// <summary>
 129         /// ツイートへのパーマリンクURLを判定する正規表現
 130         /// </summary>
 131         public static readonly Regex StatusUrlRegex = new Regex(@"https?://([^.]+\.)?twitter\.com/(#!/)?(?<ScreenName>[a-zA-Z0-9_]+)/status(es)?/(?<StatusId>[0-9]+)(/photo)?", RegexOptions.IgnoreCase);
 132
 133         /// <summary>
 134         /// FavstarやaclogなどTwitter関連サービスのパーマリンクURLからステータスIDを抽出する正規表現
 135         /// </summary>
 136         public static readonly Regex ThirdPartyStatusUrlRegex = new Regex(@"https?://(?:[^.]+\.)?(?:
 137   favstar\.fm/users/[a-zA-Z0-9_]+/status/       # Favstar
 138 | favstar\.fm/t/                                # Favstar (short)
 139 | aclog\.koba789\.com/i/                        # aclog
 140 | frtrt\.net/solo_status\.php\?status=          # RtRT
 141 )(?<StatusId>[0-9]+)", RegexOptions.IgnoreCase | RegexOptions.IgnorePatternWhitespace);
 142
 143         /// <summary>
 144         /// DM送信かどうかを判定する正規表現
 145         /// </summary>
 146         public static readonly Regex DMSendTextRegex = new Regex(@"^DM? +(?<id>[a-zA-Z0-9_]+) +(?<body>.*)", RegexOptions.IgnoreCase | RegexOptions.Singleline);
 147
 148         public TwitterApi Api { get; }
 149         public TwitterConfiguration Configuration { get; private set; }
 150
 151         delegate void GetIconImageDelegate(PostClass post);
 152         private readonly object LockObj = new object();
 153         private ISet<long> followerId = new HashSet<long>();
 154         private bool _GetFollowerResult = false;
 155         private long[] noRTId = new long[0];
 156         private bool _GetNoRetweetResult = false;
 157
 158         //プロパティからアクセスされる共通情報
 159         private string _uname;
 160
 161         private bool _readOwnPost;
 162         private List<string> _hashList = new List<string>();
 163
 164         //max_idで古い発言を取得するために保持（lists分は個別タブで管理）
 165         private long minDirectmessage = long.MaxValue;
 166         private long minDirectmessageSent = long.MaxValue;
 167
 168         private long previousStatusId = -1L;
 169
 170         //private FavoriteQueue favQueue;
 171
 172         //private List<PostClass> _deletemessages = new List<PostClass>();
 173
 174         public Twitter() : this(new TwitterApi())
 175         {
 176         }
 177
 178         public Twitter(TwitterApi api)
 179         {
 180             this.Api = api;
 181             this.Configuration = TwitterConfiguration.DefaultConfiguration();
 182         }
 183
 184         public TwitterApiAccessLevel AccessLevel
 185         {
 186             get
 187             {
 188                 return MyCommon.TwitterApiInfo.AccessLevel;
 189             }
 190         }
 191
 192         protected void ResetApiStatus()
 193         {
 194             MyCommon.TwitterApiInfo.Reset();
 195         }
 196
 197         public void ClearAuthInfo()
 198         {
 199             Twitter.AccountState = MyCommon.ACCOUNT_STATE.Invalid;
 200             this.ResetApiStatus();
 201         }
 202
 203         [Obsolete]
 204         public void VerifyCredentials()
 205         {
 206             try
 207             {
 208                 this.VerifyCredentialsAsync().Wait();
 209             }
 210             catch (AggregateException ex) when (ex.InnerException is WebApiException)
 211             {
 212                 throw new WebApiException(ex.InnerException.Message, ex);
 213             }
 214         }
 215
 216         public async Task VerifyCredentialsAsync()
 217         {
 218             var user = await this.Api.AccountVerifyCredentials()
 219                 .ConfigureAwait(false);
 220
 221             this.UpdateUserStats(user);
 222         }
 223
 224         public void Initialize(string token, string tokenSecret, string username, long userId)
 225         {
 226             //OAuth認証
 227             if (string.IsNullOrEmpty(token) || string.IsNullOrEmpty(tokenSecret) || string.IsNullOrEmpty(username))
 228             {
 229                 Twitter.AccountState = MyCommon.ACCOUNT_STATE.Invalid;
 230             }
 231             this.ResetApiStatus();
 232             this.Api.Initialize(token, tokenSecret, userId, username);
 233             _uname = username.ToLowerInvariant();
 234             if (SettingCommon.Instance.UserstreamStartup) this.ReconnectUserStream();
 235         }
 236
 237         public string PreProcessUrl(string orgData)
 238         {
 239             int posl1;
 240             var posl2 = 0;
 241             //var IDNConveter = new IdnMapping();
 242             var href = "<a href=\"";
 243
 244             while (true)
 245             {
 246                 if (orgData.IndexOf(href, posl2, StringComparison.Ordinal) > -1)
 247                 {
 248                     var urlStr = "";
 249                     // IDN展開
 250                     posl1 = orgData.IndexOf(href, posl2, StringComparison.Ordinal);
 251                     posl1 += href.Length;
 252                     posl2 = orgData.IndexOf("\"", posl1, StringComparison.Ordinal);
 253                     urlStr = orgData.Substring(posl1, posl2 - posl1);
 254
 255                     if (!urlStr.StartsWith("http://", StringComparison.Ordinal)
 256                         && !urlStr.StartsWith("https://", StringComparison.Ordinal)
 257                         && !urlStr.StartsWith("ftp://", StringComparison.Ordinal))
 258                     {
 259                         continue;
 260                     }
 261
 262                     var replacedUrl = MyCommon.IDNEncode(urlStr);
 263                     if (replacedUrl == null) continue;
 264                     if (replacedUrl == urlStr) continue;
 265
 266                     orgData = orgData.Replace("<a href=\"" + urlStr, "<a href=\"" + replacedUrl);
 267                     posl2 = 0;
 268                 }
 269                 else
 270                 {
 271                     break;
 272                 }
 273             }
 274             return orgData;
 275         }
 276
 277         public async Task PostStatus(string postStr, long? reply_to, IReadOnlyList<long> mediaIds = null)
 278         {
 279             this.CheckAccountState();
 280
 281             if (mediaIds == null &&
 282                 Twitter.DMSendTextRegex.IsMatch(postStr))
 283             {
 284                 await this.SendDirectMessage(postStr)
 285                     .ConfigureAwait(false);
 286                 return;
 287             }
 288
 289             var response = await this.Api.StatusesUpdate(postStr, reply_to, mediaIds)
 290                 .ConfigureAwait(false);
 291
 292             var status = await response.LoadJsonAsync()
 293                 .ConfigureAwait(false);
 294
 295             this.UpdateUserStats(status.User);
 296
 297             if (status.Id == this.previousStatusId)
 298                 throw new WebApiException("OK:Delaying?");
 299
 300             this.previousStatusId = status.Id;
 301         }
 302
 303         public async Task<long> UploadMedia(IMediaItem item)
 304         {
 305             this.CheckAccountState();
 306
 307             var response = await this.Api.MediaUpload(item)
 308                 .ConfigureAwait(false);
 309
 310             var media = await response.LoadJsonAsync()
 311                 .ConfigureAwait(false);
 312
 313             return media.MediaId;
 314         }
 315
 316         public async Task SendDirectMessage(string postStr)
 317         {
 318             this.CheckAccountState();
 319             this.CheckAccessLevel(TwitterApiAccessLevel.ReadWriteAndDirectMessage);
 320
 321             var mc = Twitter.DMSendTextRegex.Match(postStr);
 322
 323             var response = await this.Api.DirectMessagesNew(mc.Groups["body"].Value, mc.Groups["id"].Value)
 324                 .ConfigureAwait(false);
 325
 326             var dm = await response.LoadJsonAsync()
 327                 .ConfigureAwait(false);
 328
 329             this.UpdateUserStats(dm.Sender);
 330         }
 331
 332         public async Task PostRetweet(long id, bool read)
 333         {
 334             this.CheckAccountState();
 335
 336             //データ部分の生成
 337             var target = id;
 338             var post = TabInformations.GetInstance()[id];
 339             if (post == null)
 340             {
 341                 throw new WebApiException("Err:Target isn't found.");
 342             }
 343             if (TabInformations.GetInstance()[id].RetweetedId != null)
 344             {
 345                 target = TabInformations.GetInstance()[id].RetweetedId.Value; //再RTの場合は元発言をRT
 346             }
 347
 348             var response = await this.Api.StatusesRetweet(target)
 349                 .ConfigureAwait(false);
 350
 351             var status = await response.LoadJsonAsync()
 352                 .ConfigureAwait(false);
 353
 354             //ReTweetしたものをTLに追加
 355             post = CreatePostsFromStatusData(status);
 356             if (post == null)
 357                 throw new WebApiException("Invalid Json!");
 358
 359             //二重取得回避
 360             lock (LockObj)
 361             {
 362                 if (TabInformations.GetInstance().ContainsKey(post.StatusId))
 363                     return;
 364             }
 365             //Retweet判定
 366             if (post.RetweetedId == null)
 367                 throw new WebApiException("Invalid Json!");
 368             //ユーザー情報
 369             post.IsMe = true;
 370
 371             post.IsRead = read;
 372             post.IsOwl = false;
 373             if (_readOwnPost) post.IsRead = true;
 374             post.IsDm = false;
 375
 376             TabInformations.GetInstance().AddPost(post);
 377         }
 378
 379         public string Username
 380             => this.Api.CurrentScreenName;
 381
 382         public long UserId
 383             => this.Api.CurrentUserId;
 384
 385         private static MyCommon.ACCOUNT_STATE _accountState = MyCommon.ACCOUNT_STATE.Valid;
 386         public static MyCommon.ACCOUNT_STATE AccountState
 387         {
 388             get
 389             {
 390                 return _accountState;
 391             }
 392             set
 393             {
 394                 _accountState = value;
 395             }
 396         }
 397
 398         public bool RestrictFavCheck { get; set; }
 399
 400         public bool ReadOwnPost
 401         {
 402             get
 403             {
 404                 return _readOwnPost;
 405             }
 406             set
 407             {
 408                 _readOwnPost = value;
 409             }
 410         }
 411
 412         public int FollowersCount { get; private set; }
 413         public int FriendsCount { get; private set; }
 414         public int StatusesCount { get; private set; }
 415         public string Location { get; private set; } = "";
 416         public string Bio { get; private set; } = "";
 417
 418         /// <summary>ユーザーのフォロワー数などの情報を更新します</summary>
 419         private void UpdateUserStats(TwitterUser self)
 420         {
 421             this.FollowersCount = self.FollowersCount;
 422             this.FriendsCount = self.FriendsCount;
 423             this.StatusesCount = self.StatusesCount;
 424             this.Location = self.Location;
 425             this.Bio = self.Description;
 426         }
 427
 428         /// <summary>
 429         /// 渡された取得件数がWORKERTYPEに応じた取得可能範囲に収まっているか検証する
 430         /// </summary>
 431         public static bool VerifyApiResultCount(MyCommon.WORKERTYPE type, int count)
 432         {
 433             return count >= 20 && count <= GetMaxApiResultCount(type);
 434         }
 435
 436         /// <summary>
 437         /// 渡された取得件数が更新時の取得可能範囲に収まっているか検証する
 438         /// </summary>
 439         public static bool VerifyMoreApiResultCount(int count)
 440         {
 441             return count >= 20 && count <= 200;
 442         }
 443
 444         /// <summary>
 445         /// 渡された取得件数が起動時の取得可能範囲に収まっているか検証する
 446         /// </summary>
 447         public static bool VerifyFirstApiResultCount(int count)
 448         {
 449             return count >= 20 && count <= 200;
 450         }
 451
 452         /// <summary>
 453         /// WORKERTYPEに応じた取得可能な最大件数を取得する
 454         /// </summary>
 455         public static int GetMaxApiResultCount(MyCommon.WORKERTYPE type)
 456         {
 457             // 参照: REST APIs - 各endpointのcountパラメータ
 458             // https://dev.twitter.com/rest/public
 459             switch (type)
 460             {
 461                 case MyCommon.WORKERTYPE.Timeline:
 462                 case MyCommon.WORKERTYPE.Reply:
 463                 case MyCommon.WORKERTYPE.UserTimeline:
 464                 case MyCommon.WORKERTYPE.Favorites:
 465                 case MyCommon.WORKERTYPE.DirectMessegeRcv:
 466                 case MyCommon.WORKERTYPE.DirectMessegeSnt:
 467                 case MyCommon.WORKERTYPE.List:  // 不明
 468                     return 200;
 469
 470                 case MyCommon.WORKERTYPE.PublicSearch:
 471                     return 100;
 472
 473                 default:
 474                     throw new InvalidOperationException("Invalid type: " + type);
 475             }
 476         }
 477
 478         /// <summary>
 479         /// WORKERTYPEに応じた取得件数を取得する
 480         /// </summary>
 481         public static int GetApiResultCount(MyCommon.WORKERTYPE type, bool more, bool startup)
 482         {
 483             if (type == MyCommon.WORKERTYPE.DirectMessegeRcv ||
 484                 type == MyCommon.WORKERTYPE.DirectMessegeSnt)
 485             {
 486                 return 20;
 487             }
 488
 489             if (SettingCommon.Instance.UseAdditionalCount)
 490             {
 491                 switch (type)
 492                 {
 493                     case MyCommon.WORKERTYPE.Favorites:
 494                         if (SettingCommon.Instance.FavoritesCountApi != 0)
 495                             return SettingCommon.Instance.FavoritesCountApi;
 496                         break;
 497                     case MyCommon.WORKERTYPE.List:
 498                         if (SettingCommon.Instance.ListCountApi != 0)
 499                             return SettingCommon.Instance.ListCountApi;
 500                         break;
 501                     case MyCommon.WORKERTYPE.PublicSearch:
 502                         if (SettingCommon.Instance.SearchCountApi != 0)
 503                             return SettingCommon.Instance.SearchCountApi;
 504                         break;
 505                     case MyCommon.WORKERTYPE.UserTimeline:
 506                         if (SettingCommon.Instance.UserTimelineCountApi != 0)
 507                             return SettingCommon.Instance.UserTimelineCountApi;
 508                         break;
 509                 }
 510                 if (more && SettingCommon.Instance.MoreCountApi != 0)
 511                 {
 512                     return Math.Min(SettingCommon.Instance.MoreCountApi, GetMaxApiResultCount(type));
 513                 }
 514                 if (startup && SettingCommon.Instance.FirstCountApi != 0 && type != MyCommon.WORKERTYPE.Reply)
 515                 {
 516                     return Math.Min(SettingCommon.Instance.FirstCountApi, GetMaxApiResultCount(type));
 517                 }
 518             }
 519
 520             // 上記に当てはまらない場合の共通処理
 521             var count = SettingCommon.Instance.CountApi;
 522
 523             if (type == MyCommon.WORKERTYPE.Reply)
 524                 count = SettingCommon.Instance.CountApiReply;
 525
 526             return Math.Min(count, GetMaxApiResultCount(type));
 527         }
 528
 529         public async Task GetHomeTimelineApi(bool read, HomeTabModel tab, bool more, bool startup)
 530         {
 531             this.CheckAccountState();
 532
 533             var count = GetApiResultCount(MyCommon.WORKERTYPE.Timeline, more, startup);
 534
 535             TwitterStatus[] statuses;
 536             if (more)
 537             {
 538                 statuses = await this.Api.StatusesHomeTimeline(count, maxId: tab.OldestId)
 539                     .ConfigureAwait(false);
 540             }
 541             else
 542             {
 543                 statuses = await this.Api.StatusesHomeTimeline(count)
 544                     .ConfigureAwait(false);
 545             }
 546
 547             var minimumId = this.CreatePostsFromJson(statuses, MyCommon.WORKERTYPE.Timeline, tab, read);
 548             if (minimumId != null)
 549                 tab.OldestId = minimumId.Value;
 550         }
 551
 552         public async Task GetMentionsTimelineApi(bool read, MentionsTabModel tab, bool more, bool startup)
 553         {
 554             this.CheckAccountState();
 555
 556             var count = GetApiResultCount(MyCommon.WORKERTYPE.Reply, more, startup);
 557
 558             TwitterStatus[] statuses;
 559             if (more)
 560             {
 561                 statuses = await this.Api.StatusesMentionsTimeline(count, maxId: tab.OldestId)
 562                     .ConfigureAwait(false);
 563             }
 564             else
 565             {
 566                 statuses = await this.Api.StatusesMentionsTimeline(count)
 567                     .ConfigureAwait(false);
 568             }
 569
 570             var minimumId = this.CreatePostsFromJson(statuses, MyCommon.WORKERTYPE.Reply, tab, read);
 571             if (minimumId != null)
 572                 tab.OldestId = minimumId.Value;
 573         }
 574
 575         public async Task GetUserTimelineApi(bool read, string userName, UserTimelineTabModel tab, bool more)
 576         {
 577             this.CheckAccountState();
 578
 579             var count = GetApiResultCount(MyCommon.WORKERTYPE.UserTimeline, more, false);
 580
 581             TwitterStatus[] statuses;
 582             if (string.IsNullOrEmpty(userName))
 583             {
 584                 var target = tab.ScreenName;
 585                 if (string.IsNullOrEmpty(target)) return;
 586                 userName = target;
 587                 statuses = await this.Api.StatusesUserTimeline(userName, count)
 588                     .ConfigureAwait(false);
 589             }
 590             else
 591             {
 592                 if (more)
 593                 {
 594                     statuses = await this.Api.StatusesUserTimeline(userName, count, maxId: tab.OldestId)
 595                         .ConfigureAwait(false);
 596                 }
 597                 else
 598                 {
 599                     statuses = await this.Api.StatusesUserTimeline(userName, count)
 600                         .ConfigureAwait(false);
 601                 }
 602             }
 603
 604             var minimumId = CreatePostsFromJson(statuses, MyCommon.WORKERTYPE.UserTimeline, tab, read);
 605
 606             if (minimumId != null)
 607                 tab.OldestId = minimumId.Value;
 608         }
 609
 610         public async Task<PostClass> GetStatusApi(bool read, long id)
 611         {
 612             this.CheckAccountState();
 613
 614             var status = await this.Api.StatusesShow(id)
 615                 .ConfigureAwait(false);
 616
 617             var item = CreatePostsFromStatusData(status);
 618             if (item == null)
 619                 throw new WebApiException("Err:Can't create post");
 620
 621             item.IsRead = read;
 622             if (item.IsMe && !read && _readOwnPost) item.IsRead = true;
 623
 624             return item;
 625         }
 626
 627         public async Task GetStatusApi(bool read, long id, TabModel tab)
 628         {
 629             var post = await this.GetStatusApi(read, id)
 630                 .ConfigureAwait(false);
 631
 632             //非同期アイコン取得＆StatusDictionaryに追加
 633             if (tab != null && tab.IsInnerStorageTabType)
 634                 tab.AddPostQueue(post);
 635             else
 636                 TabInformations.GetInstance().AddPost(post);
 637         }
 638
 639         private PostClass CreatePostsFromStatusData(TwitterStatus status)
 640         {
 641             return CreatePostsFromStatusData(status, false);
 642         }
 643
 644         private PostClass CreatePostsFromStatusData(TwitterStatus status, bool favTweet)
 645         {
 646             var post = new PostClass();
 647             TwitterEntities entities;
 648             string sourceHtml;
 649
 650             post.StatusId = status.Id;
 651             if (status.RetweetedStatus != null)
 652             {
 653                 var retweeted = status.RetweetedStatus;
 654
 655                 post.CreatedAt = MyCommon.DateTimeParse(retweeted.CreatedAt);
 656
 657                 //Id
 658                 post.RetweetedId = retweeted.Id;
 659                 //本文
 660                 post.TextFromApi = retweeted.Text;
 661                 entities = retweeted.MergedEntities;
 662                 sourceHtml = retweeted.Source;
 663                 //Reply先
 664                 post.InReplyToStatusId = retweeted.InReplyToStatusId;
 665                 post.InReplyToUser = retweeted.InReplyToScreenName;
 666                 post.InReplyToUserId = status.InReplyToUserId;
 667
 668                 if (favTweet)
 669                 {
 670                     post.IsFav = true;
 671                 }
 672                 else
 673                 {
 674                     //幻覚fav対策
 675                     var tc = TabInformations.GetInstance().GetTabByType(MyCommon.TabUsageType.Favorites);
 676                     post.IsFav = tc.Contains(retweeted.Id);
 677                 }
 678
 679                 if (retweeted.Coordinates != null)
 680                     post.PostGeo = new PostClass.StatusGeo(retweeted.Coordinates.Coordinates[0], retweeted.Coordinates.Coordinates[1]);
 681
 682                 //以下、ユーザー情報
 683                 var user = retweeted.User;
 684                 if (user != null)
 685                 {
 686                     post.UserId = user.Id;
 687                     post.ScreenName = user.ScreenName;
 688                     post.Nickname = user.Name.Trim();
 689                     post.ImageUrl = user.ProfileImageUrlHttps;
 690                     post.IsProtect = user.Protected;
 691                 }
 692                 else
 693                 {
 694                     post.UserId = 0L;
 695                     post.ScreenName = "?????";
 696                     post.Nickname = "Unknown User";
 697                 }
 698
 699                 //Retweetした人
 700                 if (status.User != null)
 701                 {
 702                     post.RetweetedBy = status.User.ScreenName;
 703                     post.RetweetedByUserId = status.User.Id;
 704                     post.IsMe = post.RetweetedBy.ToLowerInvariant().Equals(_uname);
 705                 }
 706                 else
 707                 {
 708                     post.RetweetedBy = "?????";
 709                     post.RetweetedByUserId = 0L;
 710                 }
 711             }
 712             else
 713             {
 714                 post.CreatedAt = MyCommon.DateTimeParse(status.CreatedAt);
 715                 //本文
 716                 post.TextFromApi = status.Text;
 717                 entities = status.MergedEntities;
 718                 sourceHtml = status.Source;
 719                 post.InReplyToStatusId = status.InReplyToStatusId;
 720                 post.InReplyToUser = status.InReplyToScreenName;
 721                 post.InReplyToUserId = status.InReplyToUserId;
 722
 723                 if (favTweet)
 724                 {
 725                     post.IsFav = true;
 726                 }
 727                 else
 728                 {
 729                     //幻覚fav対策
 730                     var tc = TabInformations.GetInstance().GetTabByType(MyCommon.TabUsageType.Favorites);
 731                     post.IsFav = tc.Contains(post.StatusId) && TabInformations.GetInstance()[post.StatusId].IsFav;
 732                 }
 733
 734                 if (status.Coordinates != null)
 735                     post.PostGeo = new PostClass.StatusGeo(status.Coordinates.Coordinates[0], status.Coordinates.Coordinates[1]);
 736
 737                 //以下、ユーザー情報
 738                 var user = status.User;
 739                 if (user != null)
 740                 {
 741                     post.UserId = user.Id;
 742                     post.ScreenName = user.ScreenName;
 743                     post.Nickname = user.Name.Trim();
 744                     post.ImageUrl = user.ProfileImageUrlHttps;
 745                     post.IsProtect = user.Protected;
 746                     post.IsMe = post.ScreenName.ToLowerInvariant().Equals(_uname);
 747                 }
 748                 else
 749                 {
 750                     post.UserId = 0L;
 751                     post.ScreenName = "?????";
 752                     post.Nickname = "Unknown User";
 753                 }
 754             }
 755             //HTMLに整形
 756             string textFromApi = post.TextFromApi;
 757             post.Text = CreateHtmlAnchor(textFromApi, post.ReplyToList, entities, post.Media);
 758             post.TextFromApi = textFromApi;
 759             post.TextFromApi = this.ReplaceTextFromApi(post.TextFromApi, entities);
 760             post.TextFromApi = WebUtility.HtmlDecode(post.TextFromApi);
 761             post.TextFromApi = post.TextFromApi.Replace("<3", "\u2661");
 762
 763             post.QuoteStatusIds = GetQuoteTweetStatusIds(entities)
 764                 .Where(x => x != post.StatusId && x != post.RetweetedId)
 765                 .Distinct().ToArray();
 766
 767             post.ExpandedUrls = entities.OfType<TwitterEntityUrl>()
 768                 .Select(x => new PostClass.ExpandedUrlInfo(x.Url, x.ExpandedUrl))
 769                 .ToArray();
 770
 771             //Source整形
 772             var source = ParseSource(sourceHtml);
 773             post.Source = source.Item1;
 774             post.SourceUri = source.Item2;
 775
 776             post.IsReply = post.ReplyToList.Contains(_uname);
 777             post.IsExcludeReply = false;
 778
 779             if (post.IsMe)
 780             {
 781                 post.IsOwl = false;
 782             }
 783             else
 784             {
 785                 if (followerId.Count > 0) post.IsOwl = !followerId.Contains(post.UserId);
 786             }
 787
 788             post.IsDm = false;
 789             return post;
 790         }
 791
 792         /// <summary>
 793         /// ツイートに含まれる引用ツイートのURLからステータスIDを抽出
 794         /// </summary>
 795         public static IEnumerable<long> GetQuoteTweetStatusIds(IEnumerable<TwitterEntity> entities)
 796         {
 797             var urls = entities.OfType<TwitterEntityUrl>().Select(x => x.ExpandedUrl);
 798
 799             return GetQuoteTweetStatusIds(urls);
 800         }
 801
 802         public static IEnumerable<long> GetQuoteTweetStatusIds(IEnumerable<string> urls)
 803         {
 804             foreach (var url in urls)
 805             {
 806                 var match = Twitter.StatusUrlRegex.Match(url);
 807                 if (match.Success)
 808                 {
 809                     long statusId;
 810                     if (long.TryParse(match.Groups["StatusId"].Value, out statusId))
 811                         yield return statusId;
 812                 }
 813             }
 814         }
 815
 816         private long? CreatePostsFromJson(TwitterStatus[] items, MyCommon.WORKERTYPE gType, TabModel tab, bool read)
 817         {
 818             long? minimumId = null;
 819
 820             foreach (var status in items)
 821             {
 822                 PostClass post = null;
 823                 post = CreatePostsFromStatusData(status);
 824                 if (post == null) continue;
 825
 826                 if (minimumId == null || minimumId.Value > post.StatusId)
 827                     minimumId = post.StatusId;
 828
 829                 //二重取得回避
 830                 lock (LockObj)
 831                 {
 832                     if (tab == null)
 833                     {
 834                         if (TabInformations.GetInstance().ContainsKey(post.StatusId)) continue;
 835                     }
 836                     else
 837                     {
 838                         if (tab.Contains(post.StatusId)) continue;
 839                     }
 840                 }
 841
 842                 //RT禁止ユーザーによるもの
 843                 if (gType != MyCommon.WORKERTYPE.UserTimeline &&
 844                     post.RetweetedByUserId != null && this.noRTId.Contains(post.RetweetedByUserId.Value)) continue;
 845
 846                 post.IsRead = read;
 847                 if (post.IsMe && !read && _readOwnPost) post.IsRead = true;
 848
 849                 //非同期アイコン取得＆StatusDictionaryに追加
 850                 if (tab != null && tab.IsInnerStorageTabType)
 851                     tab.AddPostQueue(post);
 852                 else
 853                     TabInformations.GetInstance().AddPost(post);
 854             }
 855
 856             return minimumId;
 857         }
 858
 859         private long? CreatePostsFromSearchJson(TwitterSearchResult items, TabModel tab, bool read, int count, bool more)
 860         {
 861             long? minimumId = null;
 862
 863             foreach (var result in items.Statuses)
 864             {
 865                 var post = CreatePostsFromStatusData(result);
 866                 if (post == null)
 867                     continue;
 868
 869                 if (minimumId == null || minimumId.Value > post.StatusId)
 870                     minimumId = post.StatusId;
 871
 872                 if (!more && post.StatusId > tab.SinceId) tab.SinceId = post.StatusId;
 873                 //二重取得回避
 874                 lock (LockObj)
 875                 {
 876                     if (tab == null)
 877                     {
 878                         if (TabInformations.GetInstance().ContainsKey(post.StatusId)) continue;
 879                     }
 880                     else
 881                     {
 882                         if (tab.Contains(post.StatusId)) continue;
 883                     }
 884                 }
 885
 886                 post.IsRead = read;
 887                 if ((post.IsMe && !read) && this._readOwnPost) post.IsRead = true;
 888
 889                 //非同期アイコン取得＆StatusDictionaryに追加
 890                 if (tab != null && tab.IsInnerStorageTabType)
 891                     tab.AddPostQueue(post);
 892                 else
 893                     TabInformations.GetInstance().AddPost(post);
 894             }
 895
 896             return minimumId;
 897         }
 898
 899         private void CreateFavoritePostsFromJson(TwitterStatus[] item, bool read)
 900         {
 901             var favTab = TabInformations.GetInstance().GetTabByType(MyCommon.TabUsageType.Favorites);
 902
 903             foreach (var status in item)
 904             {
 905                 //二重取得回避
 906                 lock (LockObj)
 907                 {
 908                     if (favTab.Contains(status.Id)) continue;
 909                 }
 910
 911                 var post = CreatePostsFromStatusData(status, true);
 912                 if (post == null) continue;
 913
 914                 post.IsRead = read;
 915
 916                 TabInformations.GetInstance().AddPost(post);
 917             }
 918         }
 919
 920         public async Task GetListStatus(bool read, ListTimelineTabModel tab, bool more, bool startup)
 921         {
 922             var count = GetApiResultCount(MyCommon.WORKERTYPE.List, more, startup);
 923
 924             TwitterStatus[] statuses;
 925             if (more)
 926             {
 927                 statuses = await this.Api.ListsStatuses(tab.ListInfo.Id, count, maxId: tab.OldestId, includeRTs: SettingCommon.Instance.IsListsIncludeRts)
 928                     .ConfigureAwait(false);
 929             }
 930             else
 931             {
 932                 statuses = await this.Api.ListsStatuses(tab.ListInfo.Id, count, includeRTs: SettingCommon.Instance.IsListsIncludeRts)
 933                     .ConfigureAwait(false);
 934             }
 935
 936             var minimumId = CreatePostsFromJson(statuses, MyCommon.WORKERTYPE.List, tab, read);
 937
 938             if (minimumId != null)
 939                 tab.OldestId = minimumId.Value;
 940         }
 941
 942         /// <summary>
 943         /// startStatusId からリプライ先の発言を辿る。発言は posts 以外からは検索しない。
 944         /// </summary>
 945         /// <returns>posts の中から検索されたリプライチェインの末端</returns>
 946         internal static PostClass FindTopOfReplyChain(IDictionary<Int64, PostClass> posts, Int64 startStatusId)
 947         {
 948             if (!posts.ContainsKey(startStatusId))
 949                 throw new ArgumentException("startStatusId (" + startStatusId + ") が posts の中から見つかりませんでした。", nameof(startStatusId));
 950
 951             var nextPost = posts[startStatusId];
 952             while (nextPost.InReplyToStatusId != null)
 953             {
 954                 if (!posts.ContainsKey(nextPost.InReplyToStatusId.Value))
 955                     break;
 956                 nextPost = posts[nextPost.InReplyToStatusId.Value];
 957             }
 958
 959             return nextPost;
 960         }
 961
 962         public async Task GetRelatedResult(bool read, RelatedPostsTabModel tab)
 963         {
 964             var targetPost = tab.TargetPost;
 965             var relPosts = new Dictionary<Int64, PostClass>();
 966             if (targetPost.TextFromApi.Contains("@") && targetPost.InReplyToStatusId == null)
 967             {
 968                 //検索結果対応
 969                 var p = TabInformations.GetInstance()[targetPost.StatusId];
 970                 if (p != null && p.InReplyToStatusId != null)
 971                 {
 972                     targetPost = p;
 973                 }
 974                 else
 975                 {
 976                     p = await this.GetStatusApi(read, targetPost.StatusId)
 977                         .ConfigureAwait(false);
 978                     targetPost = p;
 979                 }
 980             }
 981             relPosts.Add(targetPost.StatusId, targetPost);
 982
 983             Exception lastException = null;
 984
 985             // in_reply_to_status_id を使用してリプライチェインを辿る
 986             var nextPost = FindTopOfReplyChain(relPosts, targetPost.StatusId);
 987             var loopCount = 1;
 988             while (nextPost.InReplyToStatusId != null && loopCount++ <= 20)
 989             {
 990                 var inReplyToId = nextPost.InReplyToStatusId.Value;
 991
 992                 var inReplyToPost = TabInformations.GetInstance()[inReplyToId];
 993                 if (inReplyToPost == null)
 994                 {
 995                     try
 996                     {
 997                         inReplyToPost = await this.GetStatusApi(read, inReplyToId)
 998                             .ConfigureAwait(false);
 999                     }
1000                     catch (WebApiException ex)
1001                     {
1002                         lastException = ex;
1003                         break;
1004                     }
1005                 }
1006
1007                 relPosts.Add(inReplyToPost.StatusId, inReplyToPost);
1008
1009                 nextPost = FindTopOfReplyChain(relPosts, nextPost.StatusId);
1010             }
1011
1012             //MRTとかに対応のためツイート内にあるツイートを指すURLを取り込む
1013             var text = targetPost.Text;
1014             var ma = Twitter.StatusUrlRegex.Matches(text).Cast<Match>()
1015                 .Concat(Twitter.ThirdPartyStatusUrlRegex.Matches(text).Cast<Match>());
1016             foreach (var _match in ma)
1017             {
1018                 Int64 _statusId;
1019                 if (Int64.TryParse(_match.Groups["StatusId"].Value, out _statusId))
1020                 {
1021                     if (relPosts.ContainsKey(_statusId))
1022                         continue;
1023
1024                     var p = TabInformations.GetInstance()[_statusId];
1025                     if (p == null)
1026                     {
1027                         try
1028                         {
1029                             p = await this.GetStatusApi(read, _statusId)
1030                                 .ConfigureAwait(false);
1031                         }
1032                         catch (WebApiException ex)
1033                         {
1034                             lastException = ex;
1035                             break;
1036                         }
1037                     }
1038
1039                     if (p != null)
1040                         relPosts.Add(p.StatusId, p);
1041                 }
1042             }
1043
1044             relPosts.Values.ToList().ForEach(p =>
1045             {
1046                 if (p.IsMe && !read && this._readOwnPost)
1047                     p.IsRead = true;
1048                 else
1049                     p.IsRead = read;
1050
1051                 tab.AddPostQueue(p);
1052             });
1053
1054             if (lastException != null)
1055                 throw new WebApiException(lastException.Message, lastException);
1056         }
1057
1058         public async Task GetSearch(bool read, PublicSearchTabModel tab, bool more)
1059         {
1060             var count = GetApiResultCount(MyCommon.WORKERTYPE.PublicSearch, more, false);
1061
1062             long? maxId = null;
1063             long? sinceId = null;
1064             if (more)
1065             {
1066                 maxId = tab.OldestId - 1;
1067             }
1068             else
1069             {
1070                 sinceId = tab.SinceId;
1071             }
1072
1073             var searchResult = await this.Api.SearchTweets(tab.SearchWords, tab.SearchLang, count, maxId, sinceId)
1074                 .ConfigureAwait(false);
1075
1076             if (!TabInformations.GetInstance().ContainsTab(tab))
1077                 return;
1078
1079             var minimumId = this.CreatePostsFromSearchJson(searchResult, tab, read, count, more);
1080
1081             if (minimumId != null)
1082                 tab.OldestId = minimumId.Value;
1083         }
1084
1085         private void CreateDirectMessagesFromJson(TwitterDirectMessage[] item, MyCommon.WORKERTYPE gType, bool read)
1086         {
1087             foreach (var message in item)
1088             {
1089                 var post = new PostClass();
1090                 try
1091                 {
1092                     post.StatusId = message.Id;
1093                     if (gType != MyCommon.WORKERTYPE.UserStream)
1094                     {
1095                         if (gType == MyCommon.WORKERTYPE.DirectMessegeRcv)
1096                         {
1097                             if (minDirectmessage > post.StatusId) minDirectmessage = post.StatusId;
1098                         }
1099                         else
1100                         {
1101                             if (minDirectmessageSent > post.StatusId) minDirectmessageSent = post.StatusId;
1102                         }
1103                     }
1104
1105                     //二重取得回避
1106                     lock (LockObj)
1107                     {
1108                         if (TabInformations.GetInstance().GetTabByType(MyCommon.TabUsageType.DirectMessage).Contains(post.StatusId)) continue;
1109                     }
1110                     //sender_id
1111                     //recipient_id
1112                     post.CreatedAt = MyCommon.DateTimeParse(message.CreatedAt);
1113                     //本文
1114                     var textFromApi = message.Text;
1115                     //HTMLに整形
1116                     post.Text = CreateHtmlAnchor(textFromApi, post.ReplyToList, message.Entities, post.Media);
1117                     post.TextFromApi = this.ReplaceTextFromApi(textFromApi, message.Entities);
1118                     post.TextFromApi = WebUtility.HtmlDecode(post.TextFromApi);
1119                     post.TextFromApi = post.TextFromApi.Replace("<3", "\u2661");
1120                     post.IsFav = false;
1121
1122                     post.QuoteStatusIds = GetQuoteTweetStatusIds(message.Entities).Distinct().ToArray();
1123
1124                     post.ExpandedUrls = message.Entities.OfType<TwitterEntityUrl>()
1125                         .Select(x => new PostClass.ExpandedUrlInfo(x.Url, x.ExpandedUrl))
1126                         .ToArray();
1127
1128                     //以下、ユーザー情報
1129                     TwitterUser user;
1130                     if (gType == MyCommon.WORKERTYPE.UserStream)
1131                     {
1132                         if (this.Api.CurrentUserId == message.Recipient.Id)
1133                         {
1134                             user = message.Sender;
1135                             post.IsMe = false;
1136                             post.IsOwl = true;
1137                         }
1138                         else
1139                         {
1140                             user = message.Recipient;
1141                             post.IsMe = true;
1142                             post.IsOwl = false;
1143                         }
1144                     }
1145                     else
1146                     {
1147                         if (gType == MyCommon.WORKERTYPE.DirectMessegeRcv)
1148                         {
1149                             user = message.Sender;
1150                             post.IsMe = false;
1151                             post.IsOwl = true;
1152                         }
1153                         else
1154                         {
1155                             user = message.Recipient;
1156                             post.IsMe = true;
1157                             post.IsOwl = false;
1158                         }
1159                     }
1160
1161                     post.UserId = user.Id;
1162                     post.ScreenName = user.ScreenName;
1163                     post.Nickname = user.Name.Trim();
1164                     post.ImageUrl = user.ProfileImageUrlHttps;
1165                     post.IsProtect = user.Protected;
1166                 }
1167                 catch(Exception ex)
1168                 {
1169                     MyCommon.TraceOut(ex, MethodBase.GetCurrentMethod().Name);
1170                     MessageBox.Show("Parse Error(CreateDirectMessagesFromJson)");
1171                     continue;
1172                 }
1173
1174                 post.IsRead = read;
1175                 if (post.IsMe && !read && _readOwnPost) post.IsRead = true;
1176                 post.IsReply = false;
1177                 post.IsExcludeReply = false;
1178                 post.IsDm = true;
1179
1180                 var dmTab = TabInformations.GetInstance().GetTabByType(MyCommon.TabUsageType.DirectMessage);
1181                 dmTab.AddPostQueue(post);
1182             }
1183         }
1184
1185         public async Task GetDirectMessageApi(bool read, MyCommon.WORKERTYPE gType, bool more)
1186         {
1187             this.CheckAccountState();
1188             this.CheckAccessLevel(TwitterApiAccessLevel.ReadWriteAndDirectMessage);
1189
1190             var count = GetApiResultCount(gType, more, false);
1191
1192             TwitterDirectMessage[] messages;
1193             if (gType == MyCommon.WORKERTYPE.DirectMessegeRcv)
1194             {
1195                 if (more)
1196                 {
1197                     messages = await this.Api.DirectMessagesRecv(count, maxId: this.minDirectmessage)
1198                         .ConfigureAwait(false);
1199                 }
1200                 else
1201                 {
1202                     messages = await this.Api.DirectMessagesRecv(count)
1203                         .ConfigureAwait(false);
1204                 }
1205             }
1206             else
1207             {
1208                 if (more)
1209                 {
1210                     messages = await this.Api.DirectMessagesSent(count, maxId: this.minDirectmessageSent)
1211                         .ConfigureAwait(false);
1212                 }
1213                 else
1214                 {
1215                     messages = await this.Api.DirectMessagesSent(count)
1216                         .ConfigureAwait(false);
1217                 }
1218             }
1219
1220             CreateDirectMessagesFromJson(messages, gType, read);
1221         }
1222
1223         public async Task GetFavoritesApi(bool read, bool more)
1224         {
1225             this.CheckAccountState();
1226
1227             var count = GetApiResultCount(MyCommon.WORKERTYPE.Favorites, more, false);
1228
1229             var statuses = await this.Api.FavoritesList(count)
1230                 .ConfigureAwait(false);
1231
1232             CreateFavoritePostsFromJson(statuses, read);
1233         }
1234
1235         private string ReplaceTextFromApi(string text, TwitterEntities entities)
1236         {
1237             if (entities != null)
1238             {
1239                 if (entities.Urls != null)
1240                 {
1241                     foreach (var m in entities.Urls)
1242                     {
1243                         if (!string.IsNullOrEmpty(m.DisplayUrl)) text = text.Replace(m.Url, m.DisplayUrl);
1244                     }
1245                 }
1246                 if (entities.Media != null)
1247                 {
1248                     foreach (var m in entities.Media)
1249                     {
1250                         if (m.AltText != null)
1251                         {
1252                             text = text.Replace(m.Url, string.Format(Properties.Resources.ImageAltText, m.AltText));
1253                         }
1254                         else
1255                         {
1256                             if (!string.IsNullOrEmpty(m.DisplayUrl)) text = text.Replace(m.Url, m.DisplayUrl);
1257                         }
1258                     }
1259                 }
1260             }
1261             return text;
1262         }
1263
1264         /// <summary>
1265         /// フォロワーIDを更新します
1266         /// </summary>
1267         /// <exception cref="WebApiException"/>
1268         public async Task RefreshFollowerIds()
1269         {
1270             if (MyCommon._endingFlag) return;
1271
1272             var cursor = -1L;
1273             var newFollowerIds = new HashSet<long>();
1274             do
1275             {
1276                 var ret = await this.Api.FollowersIds(cursor)
1277                     .ConfigureAwait(false);
1278
1279                 if (ret.Ids == null)
1280                     throw new WebApiException("ret.ids == null");
1281
1282                 newFollowerIds.UnionWith(ret.Ids);
1283                 cursor = ret.NextCursor;
1284             } while (cursor != 0);
1285
1286             this.followerId = newFollowerIds;
1287             TabInformations.GetInstance().RefreshOwl(this.followerId);
1288
1289             this._GetFollowerResult = true;
1290         }
1291
1292         public bool GetFollowersSuccess
1293         {
1294             get
1295             {
1296                 return _GetFollowerResult;
1297             }
1298         }
1299
1300         /// <summary>
1301         /// RT 非表示ユーザーを更新します
1302         /// </summary>
1303         /// <exception cref="WebApiException"/>
1304         public async Task RefreshNoRetweetIds()
1305         {
1306             if (MyCommon._endingFlag) return;
1307
1308             this.noRTId = await this.Api.NoRetweetIds()
1309                 .ConfigureAwait(false);
1310
1311             this._GetNoRetweetResult = true;
1312         }
1313
1314         public bool GetNoRetweetSuccess
1315         {
1316             get
1317             {
1318                 return _GetNoRetweetResult;
1319             }
1320         }
1321
1322         /// <summary>
1323         /// t.co の文字列長などの設定情報を更新します
1324         /// </summary>
1325         /// <exception cref="WebApiException"/>
1326         public async Task RefreshConfiguration()
1327         {
1328             this.Configuration = await this.Api.Configuration()
1329                 .ConfigureAwait(false);
1330         }
1331
1332         public async Task GetListsApi()
1333         {
1334             this.CheckAccountState();
1335
1336             var ownedLists = await TwitterLists.GetAllItemsAsync(x => this.Api.ListsOwnerships(this.Username, cursor: x))
1337                 .ConfigureAwait(false);
1338
1339             var subscribedLists = await TwitterLists.GetAllItemsAsync(x => this.Api.ListsSubscriptions(this.Username, cursor: x))
1340                 .ConfigureAwait(false);
1341
1342             TabInformations.GetInstance().SubscribableLists = Enumerable.Concat(ownedLists, subscribedLists)
1343                 .Select(x => new ListElement(x, this))
1344                 .ToList();
1345         }
1346
1347         public async Task DeleteList(long listId)
1348         {
1349             await this.Api.ListsDestroy(listId)
1350                 .IgnoreResponse()
1351                 .ConfigureAwait(false);
1352
1353             var tabinfo = TabInformations.GetInstance();
1354
1355             tabinfo.SubscribableLists = tabinfo.SubscribableLists
1356                 .Where(x => x.Id != listId)
1357                 .ToList();
1358         }
1359
1360         public async Task<ListElement> EditList(long listId, string new_name, bool isPrivate, string description)
1361         {
1362             var response = await this.Api.ListsUpdate(listId, new_name, description, isPrivate)
1363                 .ConfigureAwait(false);
1364
1365             var list = await response.LoadJsonAsync()
1366                 .ConfigureAwait(false);
1367
1368             return new ListElement(list, this);
1369         }
1370
1371         public async Task<long> GetListMembers(long listId, List<UserInfo> lists, long cursor)
1372         {
1373             this.CheckAccountState();
1374
1375             var users = await this.Api.ListsMembers(listId, cursor)
1376                 .ConfigureAwait(false);
1377
1378             Array.ForEach(users.Users, u => lists.Add(new UserInfo(u)));
1379
1380             return users.NextCursor;
1381         }
1382
1383         public async Task CreateListApi(string listName, bool isPrivate, string description)
1384         {
1385             this.CheckAccountState();
1386
1387             var response = await this.Api.ListsCreate(listName, description, isPrivate)
1388                 .ConfigureAwait(false);
1389
1390             var list = await response.LoadJsonAsync()
1391                 .ConfigureAwait(false);
1392
1393             TabInformations.GetInstance().SubscribableLists.Add(new ListElement(list, this));
1394         }
1395
1396         public async Task<bool> ContainsUserAtList(long listId, string user)
1397         {
1398             this.CheckAccountState();
1399
1400             try
1401             {
1402                 await this.Api.ListsMembersShow(listId, user)
1403                     .ConfigureAwait(false);
1404
1405                 return true;
1406             }
1407             catch (TwitterApiException ex)
1408                 when (ex.ErrorResponse.Errors.Any(x => x.Code == TwitterErrorCode.NotFound))
1409             {
1410                 return false;
1411             }
1412         }
1413
1414         public string CreateHtmlAnchor(string text, List<string> AtList, TwitterEntities entities, List<MediaInfo> media)
1415         {
1416             if (entities != null)
1417             {
1418                 if (entities.Hashtags != null)
1419                 {
1420                     lock (this.LockObj)
1421                     {
1422                         this._hashList.AddRange(entities.Hashtags.Select(x => "#" + x.Text));
1423                     }
1424                 }
1425                 if (entities.UserMentions != null)
1426                 {
1427                     foreach (var ent in entities.UserMentions)
1428                     {
1429                         var screenName = ent.ScreenName.ToLowerInvariant();
1430                         if (!AtList.Contains(screenName))
1431                             AtList.Add(screenName);
1432                     }
1433                 }
1434                 if (entities.Media != null)
1435                 {
1436                     if (media != null)
1437                     {
1438                         foreach (var ent in entities.Media)
1439                         {
1440                             if (!media.Any(x => x.Url == ent.MediaUrl))
1441                             {
1442                                 if (ent.VideoInfo != null &&
1443                                     ent.Type == "animated_gif" || ent.Type == "video")
1444                                 {
1445                                     //var videoUrl = ent.VideoInfo.Variants
1446                                     //    .Where(v => v.ContentType == "video/mp4")
1447                                     //    .OrderByDescending(v => v.Bitrate)
1448                                     //    .Select(v => v.Url).FirstOrDefault();
1449                                     media.Add(new MediaInfo(ent.MediaUrl, ent.AltText, ent.ExpandedUrl));
1450                                 }
1451                                 else
1452                                     media.Add(new MediaInfo(ent.MediaUrl, ent.AltText, videoUrl: null));
1453                             }
1454                         }
1455                     }
1456                 }
1457             }
1458
1459             // PostClass.ExpandedUrlInfo を使用して非同期に URL 展開を行うためここでは expanded_url を使用しない
1460             text = TweetFormatter.AutoLinkHtml(text, entities, keepTco: true);
1461
1462             text = Regex.Replace(text, "(^|[^a-zA-Z0-9_/&#＃@＠>=.~])(sm|nm)([0-9]{1,10})", "$1<a href=\"http://www.nicovideo.jp/watch/$2$3\">$2$3</a>");
1463             text = PreProcessUrl(text); //IDN置換
1464
1465             return text;
1466         }
1467
1468         private static readonly Uri SourceUriBase = new Uri("https://twitter.com/");
1469
1470         /// <summary>
1471         /// Twitter APIから得たHTML形式のsource文字列を分析し、source名とURLに分離します
1472         /// </summary>
1473         public static Tuple<string, Uri> ParseSource(string sourceHtml)
1474         {
1475             if (string.IsNullOrEmpty(sourceHtml))
1476                 return Tuple.Create<string, Uri>("", null);
1477
1478             string sourceText;
1479             Uri sourceUri;
1480
1481             // sourceHtmlの例: <a href="http://twitter.com" rel="nofollow">Twitter Web Client</a>
1482
1483             var match = Regex.Match(sourceHtml, "^<a href=\"(?<uri>.+?)\".*?>(?<text>.+)</a>$", RegexOptions.IgnoreCase);
1484             if (match.Success)
1485             {
1486                 sourceText = WebUtility.HtmlDecode(match.Groups["text"].Value);
1487                 try
1488                 {
1489                     var uriStr = WebUtility.HtmlDecode(match.Groups["uri"].Value);
1490                     sourceUri = new Uri(SourceUriBase, uriStr);
1491                 }
1492                 catch (UriFormatException)
1493                 {
1494                     sourceUri = null;
1495                 }
1496             }
1497             else
1498             {
1499                 sourceText = WebUtility.HtmlDecode(sourceHtml);
1500                 sourceUri = null;
1501             }
1502
1503             return Tuple.Create(sourceText, sourceUri);
1504         }
1505
1506         public async Task<TwitterApiStatus> GetInfoApi()
1507         {
1508             if (Twitter.AccountState != MyCommon.ACCOUNT_STATE.Valid) return null;
1509
1510             if (MyCommon._endingFlag) return null;
1511
1512             var limits = await this.Api.ApplicationRateLimitStatus()
1513                 .ConfigureAwait(false);
1514
1515             MyCommon.TwitterApiInfo.UpdateFromJson(limits);
1516
1517             return MyCommon.TwitterApiInfo;
1518         }
1519
1520         /// <summary>
1521         /// ブロック中のユーザーを更新します
1522         /// </summary>
1523         /// <exception cref="WebApiException"/>
1524         public async Task RefreshBlockIds()
1525         {
1526             if (MyCommon._endingFlag) return;
1527
1528             var cursor = -1L;
1529             var newBlockIds = new HashSet<long>();
1530             do
1531             {
1532                 var ret = await this.Api.BlocksIds(cursor)
1533                     .ConfigureAwait(false);
1534
1535                 newBlockIds.UnionWith(ret.Ids);
1536                 cursor = ret.NextCursor;
1537             } while (cursor != 0);
1538
1539             newBlockIds.Remove(this.UserId); // 元のソースにあったので一応残しておく
1540
1541             TabInformations.GetInstance().BlockIds = newBlockIds;
1542         }
1543
1544         /// <summary>
1545         /// ミュート中のユーザーIDを更新します
1546         /// </summary>
1547         /// <exception cref="WebApiException"/>
1548         public async Task RefreshMuteUserIdsAsync()
1549         {
1550             if (MyCommon._endingFlag) return;
1551
1552             var ids = await TwitterIds.GetAllItemsAsync(x => this.Api.MutesUsersIds(x))
1553                 .ConfigureAwait(false);
1554
1555             TabInformations.GetInstance().MuteUserIds = new HashSet<long>(ids);
1556         }
1557
1558         public string[] GetHashList()
1559         {
1560             string[] hashArray;
1561             lock (LockObj)
1562             {
1563                 hashArray = _hashList.ToArray();
1564                 _hashList.Clear();
1565             }
1566             return hashArray;
1567         }
1568
1569         public string AccessToken
1570             => ((TwitterApiConnection)this.Api.Connection).AccessToken;
1571
1572         public string AccessTokenSecret
1573             => ((TwitterApiConnection)this.Api.Connection).AccessSecret;
1574
1575         private void CheckAccountState()
1576         {
1577             if (Twitter.AccountState != MyCommon.ACCOUNT_STATE.Valid)
1578                 throw new WebApiException("Auth error. Check your account");
1579         }
1580
1581         private void CheckAccessLevel(TwitterApiAccessLevel accessLevelFlags)
1582         {
1583             if (!this.AccessLevel.HasFlag(accessLevelFlags))
1584                 throw new WebApiException("Auth Err:try to re-authorization.");
1585         }
1586
1587         public int GetTextLengthRemain(string postText)
1588         {
1589             var matchDm = Twitter.DMSendTextRegex.Match(postText);
1590             if (matchDm.Success)
1591                 return this.GetTextLengthRemainInternal(matchDm.Groups["body"].Value, isDm: true);
1592
1593             return this.GetTextLengthRemainInternal(postText, isDm: false);
1594         }
1595
1596         private int GetTextLengthRemainInternal(string postText, bool isDm)
1597         {
1598             var textLength = 0;
1599
1600             var pos = 0;
1601             while (pos < postText.Length)
1602             {
1603                 textLength++;
1604
1605                 if (char.IsSurrogatePair(postText, pos))
1606                     pos += 2; // サロゲートペアの場合は2文字分進める
1607                 else
1608                     pos++;
1609             }
1610
1611             var urls = TweetExtractor.ExtractUrls(postText);
1612             foreach (var url in urls)
1613             {
1614                 var shortUrlLength = url.StartsWith("https://", StringComparison.OrdinalIgnoreCase)
1615                     ? this.Configuration.ShortUrlLengthHttps
1616                     : this.Configuration.ShortUrlLength;
1617
1618                 textLength += shortUrlLength - url.Length;
1619             }
1620
1621             if (isDm)
1622                 return this.Configuration.DmTextCharacterLimit - textLength;
1623             else
1624                 return 140 - textLength;
1625         }
1626
1627
1628 #region "UserStream"
1629         private string trackWord_ = "";
1630         public string TrackWord
1631         {
1632             get
1633             {
1634                 return trackWord_;
1635             }
1636             set
1637             {
1638                 trackWord_ = value;
1639             }
1640         }
1641         private bool allAtReply_ = false;
1642         public bool AllAtReply
1643         {
1644             get
1645             {
1646                 return allAtReply_;
1647             }
1648             set
1649             {
1650                 allAtReply_ = value;
1651             }
1652         }
1653
1654         public event EventHandler NewPostFromStream;
1655         public event EventHandler UserStreamStarted;
1656         public event EventHandler UserStreamStopped;
1657         public event EventHandler<PostDeletedEventArgs> PostDeleted;
1658         public event EventHandler<UserStreamEventReceivedEventArgs> UserStreamEventReceived;
1659         private DateTime _lastUserstreamDataReceived;
1660         private TwitterUserstream userStream;
1661
1662         public class FormattedEvent
1663         {
1664             public MyCommon.EVENTTYPE Eventtype { get; set; }
1665             public DateTime CreatedAt { get; set; }
1666             public string Event { get; set; }
1667             public string Username { get; set; }
1668             public string Target { get; set; }
1669             public Int64 Id { get; set; }
1670             public bool IsMe { get; set; }
1671         }
1672
1673         public List<FormattedEvent> storedEvent_ = new List<FormattedEvent>();
1674         public List<FormattedEvent> StoredEvent
1675         {
1676             get
1677             {
1678                 return storedEvent_;
1679             }
1680             set
1681             {
1682                 storedEvent_ = value;
1683             }
1684         }
1685
1686         private readonly IReadOnlyDictionary<string, MyCommon.EVENTTYPE> eventTable = new Dictionary<string, MyCommon.EVENTTYPE>
1687         {
1688             ["favorite"] = MyCommon.EVENTTYPE.Favorite,
1689             ["unfavorite"] = MyCommon.EVENTTYPE.Unfavorite,
1690             ["follow"] = MyCommon.EVENTTYPE.Follow,
1691             ["list_member_added"] = MyCommon.EVENTTYPE.ListMemberAdded,
1692             ["list_member_removed"] = MyCommon.EVENTTYPE.ListMemberRemoved,
1693             ["block"] = MyCommon.EVENTTYPE.Block,
1694             ["unblock"] = MyCommon.EVENTTYPE.Unblock,
1695             ["user_update"] = MyCommon.EVENTTYPE.UserUpdate,
1696             ["deleted"] = MyCommon.EVENTTYPE.Deleted,
1697             ["list_created"] = MyCommon.EVENTTYPE.ListCreated,
1698             ["list_destroyed"] = MyCommon.EVENTTYPE.ListDestroyed,
1699             ["list_updated"] = MyCommon.EVENTTYPE.ListUpdated,
1700             ["unfollow"] = MyCommon.EVENTTYPE.Unfollow,
1701             ["list_user_subscribed"] = MyCommon.EVENTTYPE.ListUserSubscribed,
1702             ["list_user_unsubscribed"] = MyCommon.EVENTTYPE.ListUserUnsubscribed,
1703             ["mute"] = MyCommon.EVENTTYPE.Mute,
1704             ["unmute"] = MyCommon.EVENTTYPE.Unmute,
1705             ["quoted_tweet"] = MyCommon.EVENTTYPE.QuotedTweet,
1706         };
1707
1708         public bool IsUserstreamDataReceived
1709         {
1710             get
1711             {
1712                 return DateTime.Now.Subtract(this._lastUserstreamDataReceived).TotalSeconds < 31;
1713             }
1714         }
1715
1716         private void userStream_StatusArrived(string line)
1717         {
1718             this._lastUserstreamDataReceived = DateTime.Now;
1719             if (string.IsNullOrEmpty(line)) return;
1720
1721             if (line.First() != '{' || line.Last() != '}')
1722             {
1723                 MyCommon.TraceOut("Invalid JSON (StatusArrived):" + Environment.NewLine + line);
1724                 return;
1725             }
1726
1727             var isDm = false;
1728
1729             try
1730             {
1731                 using (var jsonReader = JsonReaderWriterFactory.CreateJsonReader(Encoding.UTF8.GetBytes(line), XmlDictionaryReaderQuotas.Max))
1732                 {
1733                     var xElm = XElement.Load(jsonReader);
1734                     if (xElm.Element("friends") != null)
1735                     {
1736                         Debug.WriteLine("friends");
1737                         return;
1738                     }
1739                     else if (xElm.Element("delete") != null)
1740                     {
1741                         Debug.WriteLine("delete");
1742                         Int64 id;
1743                         XElement idElm;
1744                         if ((idElm = xElm.Element("delete").Element("direct_message")?.Element("id")) != null)
1745                         {
1746                             id = 0;
1747                             long.TryParse(idElm.Value, out id);
1748
1749                             this.PostDeleted?.Invoke(this, new PostDeletedEventArgs(id));
1750                         }
1751                         else if ((idElm = xElm.Element("delete").Element("status")?.Element("id")) != null)
1752                         {
1753                             id = 0;
1754                             long.TryParse(idElm.Value, out id);
1755
1756                             this.PostDeleted?.Invoke(this, new PostDeletedEventArgs(id));
1757                         }
1758                         else
1759                         {
1760                             MyCommon.TraceOut("delete:" + line);
1761                             return;
1762                         }
1763                         for (int i = this.StoredEvent.Count - 1; i >= 0; i--)
1764                         {
1765                             var sEvt = this.StoredEvent[i];
1766                             if (sEvt.Id == id && (sEvt.Event == "favorite" || sEvt.Event == "unfavorite"))
1767                             {
1768                                 this.StoredEvent.RemoveAt(i);
1769                             }
1770                         }
1771                         return;
1772                     }
1773                     else if (xElm.Element("limit") != null)
1774                     {
1775                         Debug.WriteLine(line);
1776                         return;
1777                     }
1778                     else if (xElm.Element("event") != null)
1779                     {
1780                         Debug.WriteLine("event: " + xElm.Element("event").Value);
1781                         CreateEventFromJson(line);
1782                         return;
1783                     }
1784                     else if (xElm.Element("direct_message") != null)
1785                     {
1786                         Debug.WriteLine("direct_message");
1787                         isDm = true;
1788                     }
1789                     else if (xElm.Element("retweeted_status") != null)
1790                     {
1791                         var sourceUserId = xElm.XPathSelectElement("/user/id_str").Value;
1792                         var targetUserId = xElm.XPathSelectElement("/retweeted_status/user/id_str").Value;
1793
1794                         // 自分に関係しないリツイートの場合は無視する
1795                         var selfUserId = this.UserId.ToString();
1796                         if (sourceUserId == selfUserId || targetUserId == selfUserId)
1797                         {
1798                             // 公式 RT をイベントとしても扱う
1799                             var evt = CreateEventFromRetweet(xElm);
1800                             if (evt != null)
1801                             {
1802                                 this.StoredEvent.Insert(0, evt);
1803
1804                                 this.UserStreamEventReceived?.Invoke(this, new UserStreamEventReceivedEventArgs(evt));
1805                             }
1806                         }
1807
1808                         // 従来通り公式 RT の表示も行うため return しない
1809                     }
1810                     else if (xElm.Element("scrub_geo") != null)
1811                     {
1812                         try
1813                         {
1814                             TabInformations.GetInstance().ScrubGeoReserve(long.Parse(xElm.Element("scrub_geo").Element("user_id").Value),
1815                                                                         long.Parse(xElm.Element("scrub_geo").Element("up_to_status_id").Value));
1816                         }
1817                         catch(Exception)
1818                         {
1819                             MyCommon.TraceOut("scrub_geo:" + line);
1820                         }
1821                         return;
1822                     }
1823                 }
1824
1825                 if (isDm)
1826                 {
1827                     try
1828                     {
1829                         var message = TwitterStreamEventDirectMessage.ParseJson(line).DirectMessage;
1830                         this.CreateDirectMessagesFromJson(new[] { message }, MyCommon.WORKERTYPE.UserStream, false);
1831                     }
1832                     catch (SerializationException ex)
1833                     {
1834                         throw TwitterApiException.CreateFromException(ex, line);
1835                     }
1836                 }
1837                 else
1838                 {
1839                     try
1840                     {
1841                         var status = TwitterStatus.ParseJson(line);
1842                         this.CreatePostsFromJson(new[] { status }, MyCommon.WORKERTYPE.UserStream, null, false);
1843                     }
1844                     catch (SerializationException ex)
1845                     {
1846                         throw TwitterApiException.CreateFromException(ex, line);
1847                     }
1848                 }
1849             }
1850             catch (WebApiException ex)
1851             {
1852                 MyCommon.TraceOut(ex);
1853                 return;
1854             }
1855             catch(NullReferenceException)
1856             {
1857                 MyCommon.TraceOut("NullRef StatusArrived: " + line);
1858             }
1859
1860             this.NewPostFromStream?.Invoke(this, EventArgs.Empty);
1861         }
1862
1863         /// <summary>
1864         /// UserStreamsから受信した公式RTをイベントに変換します
1865         /// </summary>
1866         private FormattedEvent CreateEventFromRetweet(XElement xElm)
1867         {
1868             return new FormattedEvent
1869             {
1870                 Eventtype = MyCommon.EVENTTYPE.Retweet,
1871                 Event = "retweet",
1872                 CreatedAt = MyCommon.DateTimeParse(xElm.XPathSelectElement("/created_at").Value),
1873                 IsMe = xElm.XPathSelectElement("/user/id_str").Value == this.UserId.ToString(),
1874                 Username = xElm.XPathSelectElement("/user/screen_name").Value,
1875                 Target = string.Format("@{0}:{1}", new[]
1876                 {
1877                     xElm.XPathSelectElement("/retweeted_status/user/screen_name").Value,
1878                     WebUtility.HtmlDecode(xElm.XPathSelectElement("/retweeted_status/text").Value),
1879                 }),
1880                 Id = long.Parse(xElm.XPathSelectElement("/retweeted_status/id_str").Value),
1881             };
1882         }
1883
1884         private void CreateEventFromJson(string content)
1885         {
1886             TwitterStreamEvent eventData = null;
1887             try
1888             {
1889                 eventData = TwitterStreamEvent.ParseJson(content);
1890             }
1891             catch(SerializationException ex)
1892             {
1893                 MyCommon.TraceOut(ex, "Event Serialize Exception!" + Environment.NewLine + content);
1894             }
1895             catch(Exception ex)
1896             {
1897                 MyCommon.TraceOut(ex, "Event Exception!" + Environment.NewLine + content);
1898             }
1899
1900             var evt = new FormattedEvent();
1901             evt.CreatedAt = MyCommon.DateTimeParse(eventData.CreatedAt);
1902             evt.Event = eventData.Event;
1903             evt.Username = eventData.Source.ScreenName;
1904             evt.IsMe = evt.Username.ToLowerInvariant().Equals(this.Username.ToLowerInvariant());
1905
1906             MyCommon.EVENTTYPE eventType;
1907             eventTable.TryGetValue(eventData.Event, out eventType);
1908             evt.Eventtype = eventType;
1909
1910             TwitterStreamEvent<TwitterStatus> tweetEvent;
1911
1912             switch (eventData.Event)
1913             {
1914                 case "access_revoked":
1915                 case "access_unrevoked":
1916                 case "user_delete":
1917                 case "user_suspend":
1918                     return;
1919                 case "follow":
1920                     if (eventData.Target.ScreenName.ToLowerInvariant().Equals(_uname))
1921                     {
1922                         if (!this.followerId.Contains(eventData.Source.Id)) this.followerId.Add(eventData.Source.Id);
1923                     }
1924                     else
1925                     {
1926                         return;    //Block後のUndoをすると、SourceとTargetが逆転したfollowイベントが帰ってくるため。
1927                     }
1928                     evt.Target = "";
1929                     break;
1930                 case "unfollow":
1931                     evt.Target = "@" + eventData.Target.ScreenName;
1932                     break;
1933                 case "favorited_retweet":
1934                 case "retweeted_retweet":
1935                     return;
1936                 case "favorite":
1937                 case "unfavorite":
1938                     tweetEvent = TwitterStreamEvent<TwitterStatus>.ParseJson(content);
1939                     evt.Target = "@" + tweetEvent.TargetObject.User.ScreenName + ":" + WebUtility.HtmlDecode(tweetEvent.TargetObject.Text);
1940                     evt.Id = tweetEvent.TargetObject.Id;
1941
1942                     if (SettingCommon.Instance.IsRemoveSameEvent)
1943                     {
1944                         if (this.StoredEvent.Any(ev => ev.Username == evt.Username && ev.Eventtype == evt.Eventtype && ev.Target == evt.Target))
1945                             return;
1946                     }
1947
1948                     var tabinfo = TabInformations.GetInstance();
1949
1950                     PostClass post;
1951                     var statusId = tweetEvent.TargetObject.Id;
1952                     if (!tabinfo.Posts.TryGetValue(statusId, out post))
1953                         break;
1954
1955                     if (eventData.Event == "favorite")
1956                     {
1957                         var favTab = tabinfo.GetTabByType(MyCommon.TabUsageType.Favorites);
1958                         if (!favTab.Contains(post.StatusId))
1959                             favTab.AddPostImmediately(post.StatusId, post.IsRead);
1960
1961                         if (tweetEvent.Source.Id == this.UserId)
1962                         {
1963                             post.IsFav = true;
1964                         }
1965                         else if (tweetEvent.Target.Id == this.UserId)
1966                         {
1967                             post.FavoritedCount++;
1968
1969                             if (SettingCommon.Instance.FavEventUnread)
1970                                 tabinfo.SetReadAllTab(post.StatusId, read: false);
1971                         }
1972                     }
1973                     else // unfavorite
1974                     {
1975                         if (tweetEvent.Source.Id == this.UserId)
1976                         {
1977                             post.IsFav = false;
1978                         }
1979                         else if (tweetEvent.Target.Id == this.UserId)
1980                         {
1981                             post.FavoritedCount = Math.Max(0, post.FavoritedCount - 1);
1982                         }
1983                     }
1984                     break;
1985                 case "quoted_tweet":
1986                     if (evt.IsMe) return;
1987
1988                     tweetEvent = TwitterStreamEvent<TwitterStatus>.ParseJson(content);
1989                     evt.Target = "@" + tweetEvent.TargetObject.User.ScreenName + ":" + WebUtility.HtmlDecode(tweetEvent.TargetObject.Text);
1990                     evt.Id = tweetEvent.TargetObject.Id;
1991
1992                     if (SettingCommon.Instance.IsRemoveSameEvent)
1993                     {
1994                         if (this.StoredEvent.Any(ev => ev.Username == evt.Username && ev.Eventtype == evt.Eventtype && ev.Target == evt.Target))
1995                             return;
1996                     }
1997                     break;
1998                 case "list_member_added":
1999                 case "list_member_removed":
2000                 case "list_created":
2001                 case "list_destroyed":
2002                 case "list_updated":
2003                 case "list_user_subscribed":
2004                 case "list_user_unsubscribed":
2005                     var listEvent = TwitterStreamEvent<TwitterList>.ParseJson(content);
2006                     evt.Target = listEvent.TargetObject.FullName;
2007                     break;
2008                 case "block":
2009                     if (!TabInformations.GetInstance().BlockIds.Contains(eventData.Target.Id)) TabInformations.GetInstance().BlockIds.Add(eventData.Target.Id);
2010                     evt.Target = "";
2011                     break;
2012                 case "unblock":
2013                     if (TabInformations.GetInstance().BlockIds.Contains(eventData.Target.Id)) TabInformations.GetInstance().BlockIds.Remove(eventData.Target.Id);
2014                     evt.Target = "";
2015                     break;
2016                 case "user_update":
2017                     evt.Target = "";
2018                     break;
2019
2020                 // Mute / Unmute
2021                 case "mute":
2022                     evt.Target = "@" + eventData.Target.ScreenName;
2023                     if (!TabInformations.GetInstance().MuteUserIds.Contains(eventData.Target.Id))
2024                     {
2025                         TabInformations.GetInstance().MuteUserIds.Add(eventData.Target.Id);
2026                     }
2027                     break;
2028                 case "unmute":
2029                     evt.Target = "@" + eventData.Target.ScreenName;
2030                     if (TabInformations.GetInstance().MuteUserIds.Contains(eventData.Target.Id))
2031                     {
2032                         TabInformations.GetInstance().MuteUserIds.Remove(eventData.Target.Id);
2033                     }
2034                     break;
2035
2036                 default:
2037                     MyCommon.TraceOut("Unknown Event:" + evt.Event + Environment.NewLine + content);
2038                     break;
2039             }
2040             this.StoredEvent.Insert(0, evt);
2041
2042             this.UserStreamEventReceived?.Invoke(this, new UserStreamEventReceivedEventArgs(evt));
2043         }
2044
2045         private void userStream_Started()
2046         {
2047             this.UserStreamStarted?.Invoke(this, EventArgs.Empty);
2048         }
2049
2050         private void userStream_Stopped()
2051         {
2052             this.UserStreamStopped?.Invoke(this, EventArgs.Empty);
2053         }
2054
2055         public bool UserStreamActive
2056             => this.userStream == null ? false : this.userStream.IsStreamActive;
2057
2058         public void StartUserStream()
2059         {
2060             var newStream = new TwitterUserstream(this.Api);
2061
2062             newStream.StatusArrived += userStream_StatusArrived;
2063             newStream.Started += userStream_Started;
2064             newStream.Stopped += userStream_Stopped;
2065
2066             newStream.Start(this.AllAtReply, this.TrackWord);
2067
2068             var oldStream = Interlocked.Exchange(ref this.userStream, newStream);
2069             oldStream?.Dispose();
2070         }
2071
2072         public void StopUserStream()
2073         {
2074             var oldStream = Interlocked.Exchange(ref this.userStream, null);
2075             oldStream?.Dispose();
2076         }
2077
2078         public void ReconnectUserStream()
2079         {
2080             this.StartUserStream();
2081         }
2082
2083         private class TwitterUserstream : IDisposable
2084         {
2085             public bool AllAtReplies { get; private set; }
2086             public string TrackWords { get; private set; }
2087
2088             public bool IsStreamActive { get; private set; }
2089
2090             public event Action<string> StatusArrived;
2091             public event Action Stopped;
2092             public event Action Started;
2093
2094             private TwitterApi twitterApi;
2095
2096             private Task streamTask;
2097             private CancellationTokenSource streamCts;
2098
2099             public TwitterUserstream(TwitterApi twitterApi)
2100             {
2101                 this.twitterApi = twitterApi;
2102             }
2103
2104             public void Start(bool allAtReplies, string trackwords)
2105             {
2106                 this.AllAtReplies = allAtReplies;
2107                 this.TrackWords = trackwords;
2108
2109                 var cts = new CancellationTokenSource();
2110
2111                 this.streamCts = cts;
2112                 this.streamTask = Task.Run(async () =>
2113                 {
2114                     try
2115                     {
2116                         await this.UserStreamLoop(cts.Token)
2117                             .ConfigureAwait(false);
2118                     }
2119                     catch (OperationCanceledException) { }
2120                 });
2121             }
2122
2123             public void Stop()
2124             {
2125                 this.streamCts?.Cancel();
2126
2127                 // streamTask の完了を待たずに IsStreamActive を false にセットする
2128                 this.IsStreamActive = false;
2129                 this.Stopped?.Invoke();
2130             }
2131
2132             private async Task UserStreamLoop(CancellationToken cancellationToken)
2133             {
2134                 TimeSpan sleep = TimeSpan.Zero;
2135                 for (;;)
2136                 {
2137                     if (sleep != TimeSpan.Zero)
2138                     {
2139                         await Task.Delay(sleep, cancellationToken)
2140                             .ConfigureAwait(false);
2141                         sleep = TimeSpan.Zero;
2142                     }
2143
2144                     if (!MyCommon.IsNetworkAvailable())
2145                     {
2146                         sleep = TimeSpan.FromSeconds(30);
2147                         continue;
2148                     }
2149
2150                     this.IsStreamActive = true;
2151                     this.Started?.Invoke();
2152
2153                     try
2154                     {
2155                         var replies = this.AllAtReplies ? "all" : null;
2156
2157                         using (var stream = await this.twitterApi.UserStreams(replies, this.TrackWords)
2158                             .ConfigureAwait(false))
2159                         using (var reader = new StreamReader(stream))
2160                         {
2161                             while (!reader.EndOfStream)
2162                             {
2163                                 var line = await reader.ReadLineAsync()
2164                                     .ConfigureAwait(false);
2165
2166                                 cancellationToken.ThrowIfCancellationRequested();
2167
2168                                 this.StatusArrived?.Invoke(line);
2169                             }
2170                         }
2171
2172                         // キャンセルされていないのにストリームが終了した場合
2173                         sleep = TimeSpan.FromSeconds(30);
2174                     }
2175                     catch (TwitterApiException) { sleep = TimeSpan.FromSeconds(30); }
2176                     catch (IOException) { sleep = TimeSpan.FromSeconds(30); }
2177                     catch (OperationCanceledException)
2178                     {
2179                         if (cancellationToken.IsCancellationRequested)
2180                             throw;
2181
2182                         // cancellationToken によるキャンセルではない（＝タイムアウトエラー）
2183                         sleep = TimeSpan.FromSeconds(30);
2184                     }
2185                     catch (Exception ex)
2186                     {
2187                         MyCommon.ExceptionOut(ex);
2188                         sleep = TimeSpan.FromSeconds(30);
2189                     }
2190                     finally
2191                     {
2192                         this.IsStreamActive = false;
2193                         this.Stopped?.Invoke();
2194                     }
2195                 }
2196             }
2197
2198             private bool disposed = false;
2199
2200             public void Dispose()
2201             {
2202                 if (this.disposed)
2203                     return;
2204
2205                 this.disposed = true;
2206
2207                 this.Stop();
2208
2209                 this.Started = null;
2210                 this.Stopped = null;
2211                 this.StatusArrived = null;
2212             }
2213         }
2214 #endregion
2215
2216 #region "IDisposable Support"
2217         private bool disposedValue; // 重複する呼び出しを検出するには
2218
2219         // IDisposable
2220         protected virtual void Dispose(bool disposing)
2221         {
2222             if (!this.disposedValue)
2223             {
2224                 if (disposing)
2225                 {
2226                     this.StopUserStream();
2227                 }
2228             }
2229             this.disposedValue = true;
2230         }
2231
2232         //protected Overrides void Finalize()
2233         //{
2234         //    // このコードを変更しないでください。クリーンアップ コードを上の Dispose(bool disposing) に記述します。
2235         //    Dispose(false)
2236         //    MyBase.Finalize()
2237         //}
2238
2239         // このコードは、破棄可能なパターンを正しく実装できるように Visual Basic によって追加されました。
2240         public void Dispose()
2241         {
2242             // このコードを変更しないでください。クリーンアップ コードを上の Dispose(bool disposing) に記述します。
2243             Dispose(true);
2244             GC.SuppressFinalize(this);
2245         }
2246 #endregion
2247     }
2248
2249     public class PostDeletedEventArgs : EventArgs
2250     {
2251         public long StatusId { get; }
2252
2253         public PostDeletedEventArgs(long statusId)
2254         {
2255             this.StatusId = statusId;
2256         }
2257     }
2258
2259     public class UserStreamEventReceivedEventArgs : EventArgs
2260     {
2261         public Twitter.FormattedEvent EventData { get; }
2262
2263         public UserStreamEventReceivedEventArgs(Twitter.FormattedEvent eventData)
2264         {
2265             this.EventData = eventData;
2266         }
2267     }
2268 }