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using System.Text.Json.Serialization;
using ArcaneLibs.Extensions;
using LibMatrix.EventTypes.Spec.State.RoomInfo;
using LibMatrix.HomeserverEmulator.Services;
using LibMatrix.Homeservers;
using LibMatrix.Responses;
using Microsoft.AspNetCore.Mvc;
namespace LibMatrix.HomeserverEmulator.Controllers;
[ApiController]
[Route("/_matrix/")]
public class DirectoryController(ILogger<DirectoryController> logger, RoomStore roomStore) : ControllerBase {
#region Room directory
[HttpGet("client/v3/directory/room/{alias}")]
public async Task<AliasResult> GetRoomAliasV3(string alias) {
var match = roomStore._rooms.FirstOrDefault(x =>
x.State.Any(y => y.Type == RoomCanonicalAliasEventContent.EventId && y.StateKey == "" && y.RawContent?["alias"]?.ToString() == alias));
if (match == null)
throw new MatrixException() {
ErrorCode = "M_NOT_FOUND",
Error = "Room not found"
};
var servers = match.State.Where(x => x.Type == RoomMemberEventContent.EventId && x.RawContent?["membership"]?.ToString() == "join")
.Select(x => x.StateKey!.Split(':', 2)[1]).ToList();
return new() {
RoomId = match.RoomId,
Servers = servers
};
}
[HttpGet("client/v3/publicRooms")]
public async Task<PublicRoomDirectoryResult> GetPublicRooms(int limit = 100, string? server = null, string? since = null) {
var rooms = roomStore._rooms.OrderByDescending(x => x.JoinedMembers.Count).AsEnumerable();
if (since != null) {
rooms = rooms.SkipWhile(x => x.RoomId != since).Skip(1);
}
if (server != null) {
rooms = rooms.Where(x => x.State.Any(y => y.Type == RoomMemberEventContent.EventId && y.StateKey!.EndsWith(server)));
}
var count = rooms.Count();
rooms = rooms.Take(limit);
return new PublicRoomDirectoryResult() {
Chunk = rooms.Select(x => new PublicRoomDirectoryResult.PublicRoomListItem() {
RoomId = x.RoomId,
Name = x.State.FirstOrDefault(y => y.Type == RoomNameEventContent.EventId)?.RawContent?["name"]?.ToString(),
Topic = x.State.FirstOrDefault(y => y.Type == RoomTopicEventContent.EventId)?.RawContent?["topic"]?.ToString(),
AvatarUrl = x.State.FirstOrDefault(y => y.Type == RoomAvatarEventContent.EventId)?.RawContent?["url"]?.ToString(),
GuestCanJoin = x.State.Any(y => y.Type == RoomGuestAccessEventContent.EventId && y.RawContent?["guest_access"]?.ToString() == "can_join"),
NumJoinedMembers = x.JoinedMembers.Count,
WorldReadable = x.State.Any(y => y.Type == RoomHistoryVisibilityEventContent.EventId && y.RawContent?["history_visibility"]?.ToString() == "world_readable"),
JoinRule = x.State.FirstOrDefault(y => y.Type == RoomJoinRulesEventContent.EventId)?.RawContent?["join_rule"]?.ToString(),
CanonicalAlias = x.State.FirstOrDefault(y => y.Type == RoomCanonicalAliasEventContent.EventId)?.RawContent?["alias"]?.ToString()
}).ToList(),
NextBatch = count > limit ? rooms.Last().RoomId : null,
TotalRoomCountEstimate = count
};
}
[HttpPost("client/v3/publicRooms")]
public async Task<PublicRoomDirectoryResult> GetFilteredPublicRooms([FromBody] PublicRoomDirectoryRequest request, [FromQuery] string? server = null) {
var rooms = roomStore._rooms.OrderByDescending(x => x.JoinedMembers.Count).AsEnumerable();
if (request.Since != null) {
rooms = rooms.SkipWhile(x => x.RoomId != request.Since).Skip(1);
}
if (server != null) {
rooms = rooms.Where(x => x.State.Any(y => y.Type == RoomMemberEventContent.EventId && y.StateKey!.EndsWith(server)));
}
var count = rooms.Count();
rooms = rooms.Take(request.Limit ?? 100);
return new PublicRoomDirectoryResult() {
Chunk = rooms.Select(x => new PublicRoomDirectoryResult.PublicRoomListItem() {
RoomId = x.RoomId,
Name = x.State.FirstOrDefault(y => y.Type == RoomNameEventContent.EventId)?.RawContent?["name"]?.ToString(),
Topic = x.State.FirstOrDefault(y => y.Type == RoomTopicEventContent.EventId)?.RawContent?["topic"]?.ToString(),
AvatarUrl = x.State.FirstOrDefault(y => y.Type == RoomAvatarEventContent.EventId)?.RawContent?["url"]?.ToString(),
GuestCanJoin = x.State.Any(y => y.Type == RoomGuestAccessEventContent.EventId && y.RawContent?["guest_access"]?.ToString() == "can_join"),
NumJoinedMembers = x.JoinedMembers.Count,
WorldReadable = x.State.Any(y => y.Type == RoomHistoryVisibilityEventContent.EventId && y.RawContent?["history_visibility"]?.ToString() == "world_readable"),
JoinRule = x.State.FirstOrDefault(y => y.Type == RoomJoinRulesEventContent.EventId)?.RawContent?["join_rule"]?.ToString(),
CanonicalAlias = x.State.FirstOrDefault(y => y.Type == RoomCanonicalAliasEventContent.EventId)?.RawContent?["alias"]?.ToString()
}).ToList(),
NextBatch = count > request.Limit ? rooms.Last().RoomId : null,
TotalRoomCountEstimate = count
};
}
#endregion
#region User directory
[HttpPost("client/v3/user_directory/search")]
public async Task<UserDirectoryResponse> SearchUserDirectory([FromBody] UserDirectoryRequest request) {
var users = roomStore._rooms
.SelectMany(x => x.State.Where(y =>
y.Type == RoomMemberEventContent.EventId
&& y.RawContent?["membership"]?.ToString() == "join"
&& (y.StateKey!.ContainsAnyCase(request.SearchTerm) || y.RawContent?["displayname"]?.ToString()?.ContainsAnyCase(request.SearchTerm) == true)
)
)
.DistinctBy(x => x.StateKey)
.ToList();
request.Limit ??= 10;
return new() {
Results = users.Select(x => new UserDirectoryResponse.UserDirectoryResult {
UserId = x.StateKey!,
DisplayName = x.RawContent?["displayname"]?.ToString(),
AvatarUrl = x.RawContent?["avatar_url"]?.ToString()
}).ToList(),
Limited = users.Count > request.Limit
};
}
#endregion
}
public class PublicRoomDirectoryRequest {
[JsonPropertyName("filter")]
public PublicRoomDirectoryFilter Filter { get; set; }
[JsonPropertyName("include_all_networks")]
public bool IncludeAllNetworks { get; set; }
[JsonPropertyName("limit")]
public int? Limit { get; set; }
[JsonPropertyName("since")]
public string? Since { get; set; }
[JsonPropertyName("third_party_instance_id")]
public string? ThirdPartyInstanceId { get; set; }
public class PublicRoomDirectoryFilter {
[JsonPropertyName("generic_search_term")]
public string? GenericSearchTerm { get; set; }
[JsonPropertyName("room_types")]
public List<string>? RoomTypes { get; set; }
}
}
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