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using LibMatrix.EventTypes.Spec.State;
using LibMatrix.HomeserverEmulator.Services;
using Microsoft.AspNetCore.Mvc;
namespace LibMatrix.HomeserverEmulator.Controllers.Rooms;
[ApiController]
[Route("/_matrix/client/{version}/rooms/{roomId}/")]
public class RoomMembersController(
ILogger<RoomMembersController> logger,
TokenService tokenService,
UserStore userStore,
RoomStore roomStore,
PaginationTokenResolverService paginationTokenResolver) : ControllerBase {
[HttpGet("members")]
public async Task<List<LegacyMatrixEventResponse>> GetMembers(string roomId, string? at = null, string? membership = null, string? not_membership = null) {
var token = tokenService.GetAccessTokenOrNull(HttpContext);
if (token == null)
throw new MatrixException() {
ErrorCode = "M_MISSING_TOKEN",
Error = "Missing token"
};
var user = await userStore.GetUserByToken(token);
if (user == null)
throw new MatrixException() {
ErrorCode = "M_UNKNOWN_TOKEN",
Error = "No such user"
};
var room = roomStore.GetRoomById(roomId);
if (room == null)
throw new MatrixException() {
ErrorCode = "M_NOT_FOUND",
Error = "Room not found"
};
var members = room.Timeline.Where(x => x.Type == "m.room.member" && x.StateKey != null).ToList();
if (membership != null)
members = members.Where(x => (x.TypedContent as RoomMemberEventContent)?.Membership == membership).ToList();
if (not_membership != null)
members = members.Where(x => (x.TypedContent as RoomMemberEventContent)?.Membership != not_membership).ToList();
if (at != null) {
LegacyMatrixEventResponse? evt = null;
if (at.StartsWith('$'))
evt = await paginationTokenResolver.ResolveTokenToEvent(at, room);
if (evt is null) {
var time = await paginationTokenResolver.ResolveTokenToTimestamp(at);
evt = room.Timeline.LastOrDefault(x => x.OriginServerTs <= time);
if (evt is null) {
logger.LogWarning("Sent empty list of members for room {roomId} at {at}, because there were no events at this time!", roomId, at);
return [];
}
}
else if (!room.Timeline.Contains(evt)) {
evt = room.Timeline.LastOrDefault(x => x.OriginServerTs <= evt.OriginServerTs);
if (evt is null) {
logger.LogWarning("Sent empty list of members for room {roomId} at {at}, because there were no events at this time!", roomId, at);
return [];
}
}
// evt = room.Timeline.FirstOrDefault(x => x.EventId == at);
if (evt == null)
throw new MatrixException() {
ErrorCode = "M_NOT_FOUND",
Error = "Event not found"
};
members = members.Where(x => x.OriginServerTs <= evt.OriginServerTs).ToList();
}
return members;
}
}
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