OpenTween/Api/GraphQL/TwitterGraphqlUser.cs

   1 // OpenTween - Client of Twitter
   2 // Copyright (c) 2023 kim_upsilon (@kim_upsilon) <https://upsilo.net/~upsilon/>
   3 // All rights reserved.
   4 //
   5 // This file is part of OpenTween.
   6 //
   7 // This program is free software; you can redistribute it and/or modify it
   8 // under the terms of the GNU General Public License as published by the Free
   9 // Software Foundation; either version 3 of the License, or (at your option)
  10 // any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful, but
  13 // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  15 // for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this program. If not, see <http://www.gnu.org/licenses/>, or write to
  19 // the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
  20 // Boston, MA 02110-1301, USA.
  21
  22 #nullable enable
  23
  24 using System;
  25 using System.Collections.Generic;
  26 using System.Linq;
  27 using System.Text;
  28 using System.Threading.Tasks;
  29 using System.Xml.Linq;
  30 using System.Xml.XPath;
  31 using OpenTween.Api.DataModel;
  32
  33 namespace OpenTween.Api.GraphQL
  34 {
  35     public class TwitterGraphqlUser
  36     {
  37         public const string TypeName = "User";
  38
  39         public XElement Element { get; }
  40
  41         public TwitterGraphqlUser(XElement element)
  42         {
  43             var typeName = element.Element("__typename")?.Value;
  44             if (typeName != TypeName)
  45                 throw new ArgumentException($"Invalid itemType: {typeName}", nameof(element));
  46
  47             this.Element = element;
  48         }
  49
  50         public TwitterUser ToTwitterUser()
  51         {
  52             try
  53             {
  54                 return TwitterGraphqlUser.ParseUser(this.Element);
  55             }
  56             catch (WebApiException ex)
  57             {
  58                 ex.ResponseText = JsonUtils.JsonXmlToString(this.Element);
  59                 MyCommon.TraceOut(ex);
  60                 throw;
  61             }
  62         }
  63
  64         public static TwitterUser ParseUser(XElement userElm)
  65         {
  66             var userLegacyElm = userElm.Element("legacy") ?? throw CreateParseError();
  67
  68             static string GetText(XElement elm, string name)
  69                 => elm.Element(name)?.Value ?? throw CreateParseError();
  70
  71             static string? GetTextOrNull(XElement elm, string name)
  72                 => elm.Element(name)?.Value;
  73
  74             return new()
  75             {
  76                 Id = long.Parse(GetText(userElm, "rest_id")),
  77                 IdStr = GetText(userElm, "rest_id"),
  78                 Name = GetText(userLegacyElm, "name"),
  79                 ProfileImageUrlHttps = GetText(userLegacyElm, "profile_image_url_https"),
  80                 ScreenName = GetText(userLegacyElm, "screen_name"),
  81                 Protected = GetTextOrNull(userLegacyElm, "protected") == "true",
  82                 Verified = GetTextOrNull(userLegacyElm, "verified") == "true",
  83                 CreatedAt = GetText(userLegacyElm, "created_at"),
  84                 FollowersCount = int.Parse(GetText(userLegacyElm, "followers_count")),
  85                 FriendsCount = int.Parse(GetText(userLegacyElm, "friends_count")),
  86                 FavouritesCount = int.Parse(GetText(userLegacyElm, "favourites_count")),
  87                 StatusesCount = int.Parse(GetText(userLegacyElm, "statuses_count")),
  88                 Description = GetTextOrNull(userLegacyElm, "description"),
  89                 Location = GetTextOrNull(userLegacyElm, "location"),
  90                 Url = GetTextOrNull(userLegacyElm, "url"),
  91                 Entities = new()
  92                 {
  93                     Description = new()
  94                     {
  95                         Urls = userLegacyElm.XPathSelectElements("entities/description/urls/item")
  96                             .Select(x => new TwitterEntityUrl()
  97                             {
  98                                 Indices = x.XPathSelectElements("indices/item").Select(x => int.Parse(x.Value)).ToArray(),
  99                                 DisplayUrl = GetText(x, "display_url"),
 100                                 ExpandedUrl = GetText(x, "expanded_url"),
 101                                 Url = GetText(x, "url"),
 102                             })
 103                             .ToArray(),
 104                     },
 105                     Url = new()
 106                     {
 107                         Urls = userLegacyElm.XPathSelectElements("entities/url/urls/item")
 108                             .Select(x => new TwitterEntityUrl()
 109                             {
 110                                 Indices = x.XPathSelectElements("indices/item").Select(x => int.Parse(x.Value)).ToArray(),
 111                                 DisplayUrl = GetText(x, "display_url"),
 112                                 ExpandedUrl = GetText(x, "expanded_url"),
 113                                 Url = GetText(x, "url"),
 114                             })
 115                             .ToArray(),
 116                     },
 117                 },
 118             };
 119         }
 120
 121         private static Exception CreateParseError()
 122             => throw new WebApiException("Parse error on User");
 123     }
 124 }