OpenTween/Api/GraphQL/CreateRetweetRequest.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.IO;
  27 using System.Linq;
  28 using System.Runtime.Serialization.Json;
  29 using System.Text;
  30 using System.Threading.Tasks;
  31 using System.Xml;
  32 using System.Xml.Linq;
  33 using System.Xml.XPath;
  34 using OpenTween.Connection;
  35 using OpenTween.Models;
  36
  37 namespace OpenTween.Api.GraphQL
  38 {
  39     public class CreateRetweetRequest
  40     {
  41         private static readonly Uri EndpointUri = new("https://twitter.com/i/api/graphql/ojPdsZsimiJrUGLR1sjUtA/CreateRetweet");
  42
  43         public required TwitterStatusId TweetId { get; set; }
  44
  45         public string CreateRequestBody()
  46         {
  47             return $$"""
  48             {"variables":{"tweet_id":"{{JsonUtils.EscapeJsonString(this.TweetId.Id)}}","dark_request":false},"queryId":"ojPdsZsimiJrUGLR1sjUtA"}
  49             """;
  50         }
  51
  52         public async Task<TwitterStatusId> Send(IApiConnectionLegacy apiConnection)
  53         {
  54             var json = this.CreateRequestBody();
  55             var response = await apiConnection.PostJsonAsync(EndpointUri, json);
  56             var responseBytes = Encoding.UTF8.GetBytes(response);
  57             using var jsonReader = JsonReaderWriterFactory.CreateJsonReader(responseBytes, XmlDictionaryReaderQuotas.Max);
  58
  59             var rootElm = XElement.Load(jsonReader);
  60             ErrorResponse.ThrowIfError(rootElm);
  61
  62             var tweetIdStr = rootElm.XPathSelectElement("/data/create_retweet/retweet_results/result/rest_id")?.Value ?? throw CreateParseError();
  63
  64             return new(tweetIdStr);
  65         }
  66
  67         private static Exception CreateParseError()
  68             => throw new WebApiException($"Parse error on CreateRetweet");
  69     }
  70 }