MatrixRoomUtils

Room.cs (5901B)

---

 using System.Diagnostics.CodeAnalysis;
 using System.Net.Http.Json;
 using System.Reflection;
 using System.Text.Json;
 using System.Text.Json.Serialization;
 using System.Web;
 using MatrixRoomUtils.Core.Extensions;
 
 namespace MatrixRoomUtils.Core;
 
 public class Room
 {
     private readonly HttpClient _httpClient;
     public string RoomId { get; set; }
 
     public Room(HttpClient httpClient, string roomId)
     {
         _httpClient = httpClient;
         RoomId = roomId;
     }
 
     public async Task<JsonElement?> GetStateAsync(string type, string stateKey = "", bool logOnFailure = true)
     {
         var url = $"/_matrix/client/v3/rooms/{RoomId}/state";
         if (!string.IsNullOrEmpty(type)) url += $"/{type}";
         if (!string.IsNullOrEmpty(stateKey)) url += $"/{stateKey}";
 
         var res = await _httpClient.GetAsync(url);
         if (!res.IsSuccessStatusCode)
         {
             if (logOnFailure) Console.WriteLine($"{RoomId}/{stateKey}/{type} - got status: {res.StatusCode}");
             return null;
         }
 
         var result = await res.Content.ReadFromJsonAsync<JsonElement>();
         return result;
     }
 
     public async Task<T?> GetStateAsync<T>(string type, string stateKey = "", bool logOnFailure = false)
     {
         var res = await GetStateAsync(type, stateKey, logOnFailure);
         if (res == null) return default;
         return res.Value.Deserialize<T>();
     }
 
     public async Task<string> GetNameAsync()
     {
         var res = await GetStateAsync("m.room.name");
         if (!res.HasValue)
         {
             Console.WriteLine($"Room {RoomId} has no name!");
             return RoomId;
         }
 
         var resn = res?.TryGetProperty("name", out var name) ?? false ? name.GetString() ?? RoomId : RoomId;
         //Console.WriteLine($"Got name: {resn}");
         return resn;
     }
 
     public async Task JoinAsync(string[]? homeservers = null)
     {
         string join_url = $"/_matrix/client/r0/join/{HttpUtility.UrlEncode(RoomId)}";
         Console.WriteLine($"Calling {join_url} with {homeservers?.Length ?? 0} via's...");
         if (homeservers == null || homeservers.Length == 0) homeservers = new[] { RoomId.Split(':')[1] };
         var fullJoinUrl = $"{join_url}?server_name=" + string.Join("&server_name=", homeservers);
         var res = await _httpClient.PostAsync(fullJoinUrl, null);
     }
 
     public async Task<List<string>> GetMembersAsync(bool joinedOnly = true)
     {
         var res = await GetStateAsync("");
         if (!res.HasValue) return new List<string>();
         var members = new List<string>();
         foreach (var member in res.Value.EnumerateArray())
         {
             if (member.GetProperty("type").GetString() != "m.room.member") continue;
             if (joinedOnly && member.GetProperty("content").GetProperty("membership").GetString() != "join") continue;
             var memberId = member.GetProperty("state_key").GetString();
             members.Add(memberId ?? throw new InvalidOperationException("Event type was member but state key was null!"));
         }
 
         return members;
     }
 
     public async Task<List<string>> GetAliasesAsync()
     {
         var res = await GetStateAsync("m.room.aliases");
         if (!res.HasValue) return new List<string>();
         var aliases = new List<string>();
         foreach (var alias in res.Value.GetProperty("aliases").EnumerateArray())
         {
             aliases.Add(alias.GetString() ?? "");
         }
 
         return aliases;
     }
 
     public async Task<string> GetCanonicalAliasAsync()
     {
         var res = await GetStateAsync("m.room.canonical_alias");
         if (!res.HasValue) return "";
         return res.Value.GetProperty("alias").GetString() ?? "";
     }
 
     public async Task<string> GetTopicAsync()
     {
         var res = await GetStateAsync("m.room.topic");
         if (!res.HasValue) return "";
         return res.Value.GetProperty("topic").GetString() ?? "";
     }
 
     public async Task<string> GetAvatarUrlAsync()
     {
         var res = await GetStateAsync("m.room.avatar");
         if (!res.HasValue) return "";
         return res.Value.GetProperty("url").GetString() ?? "";
     }
 
     public async Task<JoinRules> GetJoinRuleAsync()
     {
         var res = await GetStateAsync("m.room.join_rules");
         if (!res.HasValue) return new JoinRules();
         return res.Value.Deserialize<JoinRules>() ?? new JoinRules();
     }
 
     public async Task<string> GetHistoryVisibilityAsync()
     {
         var res = await GetStateAsync("m.room.history_visibility");
         if (!res.HasValue) return "";
         return res.Value.GetProperty("history_visibility").GetString() ?? "";
     }
 
     public async Task<string> GetGuestAccessAsync()
     {
         var res = await GetStateAsync("m.room.guest_access");
         if (!res.HasValue) return "";
         return res.Value.GetProperty("guest_access").GetString() ?? "";
     }
 
     public async Task<CreateEvent> GetCreateEventAsync()
     {
         var res = await GetStateAsync("m.room.create");
         if (!res.HasValue) return new CreateEvent();
 
         res.FindExtraJsonFields(typeof(CreateEvent));
 
         return res.Value.Deserialize<CreateEvent>() ?? new CreateEvent();
     }
 }
 
 public class CreateEvent
 {
     [JsonPropertyName("creator")] public string Creator { get; set; }
     [JsonPropertyName("room_version")] public string RoomVersion { get; set; }
     [JsonPropertyName("type")] public string? Type { get; set; }
     [JsonPropertyName("predecessor")] public object? Predecessor { get; set; }
     [JsonPropertyName("m.federate")] public bool Federate { get; set; }
 }
 
 public class JoinRules
 {
     private const string Public = "public";
     private const string Invite = "invite";
     private const string Knock = "knock";
 
     [JsonPropertyName("join_rule")] public string JoinRule { get; set; }
     [JsonPropertyName("allow")] public List<string> Allow { get; set; }
 }