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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; }
}
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