Add an endpoint to return all participants of a room with its breakout rooms

Signed-off-by: Joas Schilling <coding@schilljs.com>

3 files changed, 80 insertions, 1 deletions

diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index 2f725cc00..0e44e69a4 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -699,9 +699,39 @@ class RoomController extends AEnvironmentAwareController {
 			return new DataResponse([], Http::STATUS_FORBIDDEN);
 		}
 
-		$maxPingAge = $this->timeFactory->getTime() - Session::SESSION_TIMEOUT_KILL;
 		$participants = $this->participantService->getSessionsAndParticipantsForRoom($this->room);
+
+		return $this->formatParticipantList($participants, $includeStatus);
+	}
+
+	/**
+	 * @PublicPage
+	 * @RequireParticipant
+	 * @RequireModeratorOrNoLobby
+	 *
+	 * @param bool $includeStatus
+	 * @return DataResponse
+	 */
+	public function getBreakoutRoomParticipants(bool $includeStatus = false): DataResponse {
+		if ($this->participant->getAttendee()->getParticipantType() === Participant::GUEST) {
+			return new DataResponse([], Http::STATUS_FORBIDDEN);
+		}
+
+		$breakoutRooms = $this->breakoutRoomService->getBreakoutRooms($this->room, $this->participant);
+		$breakoutRooms[] = $this->room;
+		$participants = $this->participantService->getSessionsAndParticipantsForRooms($breakoutRooms);
+
+		return $this->formatParticipantList($participants, $includeStatus);
+	}
+
+	/**
+	 * @param Participant[] $participants
+	 * @param bool $includeStatus
+	 * @return DataResponse
+	 */
+	protected function formatParticipantList(array $participants, bool $includeStatus): DataResponse {
 		$results = $headers = $statuses = [];
+		$maxPingAge = $this->timeFactory->getTime() - Session::SESSION_TIMEOUT_KILL;
 
 		if ($this->userId !== null
 			&& $includeStatus
@@ -747,6 +777,7 @@ class RoomController extends AEnvironmentAwareController {
 			}
 
 			$result = [
+				'roomToken' => $participant->getRoom()->getToken(),
 				'inCall' => Participant::FLAG_DISCONNECTED,
 				'lastPing' => 0,
 				'sessionIds' => [],
diff --git a/lib/Participant.php b/lib/Participant.php
index 83e80f7f5..b11a9f74b 100644
--- a/lib/Participant.php
+++ b/lib/Participant.php
@@ -67,6 +67,10 @@ class Participant {
 		$this->session = $session;
 	}
 
+	public function getRoom(): Room {
+		return $this->room;
+	}
+
 	public function getAttendee(): Attendee {
 		return $this->attendee;
 	}
diff --git a/lib/Service/ParticipantService.php b/lib/Service/ParticipantService.php
index 2941972c8..f03fad5e6 100644
--- a/lib/Service/ParticipantService.php
+++ b/lib/Service/ParticipantService.php
@@ -1267,6 +1267,34 @@ class ParticipantService {
 	}
 
 	/**
+	 * Get all sessions and attendees without a session for the room
+	 *
+	 * This will return multiple items for the same attendee if the attendee
+	 * has multiple sessions in the room.
+	 *
+	 * @param Room[] $rooms
+	 * @return Participant[]
+	 */
+	public function getSessionsAndParticipantsForRooms(array $rooms): array {
+		$roomIds = array_map(static fn (Room $room) => $room->getId(), $rooms);
+		$map = array_combine($roomIds, $rooms);
+
+		$query = $this->connection->getQueryBuilder();
+
+		$helper = new SelectHelper();
+		$helper->selectAttendeesTable($query);
+		$helper->selectSessionsTable($query);
+		$query->from('talk_attendees', 'a')
+			->leftJoin(
+				'a', 'talk_sessions', 's',
+				$query->expr()->eq('s.attendee_id', 'a.id')
+			)
+			->where($query->expr()->in('a.room_id', $query->createNamedParameter($roomIds, IQueryBuilder::PARAM_INT_ARRAY)));
+
+		return $this->getParticipantsForRoomsFromQuery($query, $map);
+	}
+
+	/**
 	 * @param Room $room
 	 * @param int $maxAge
 	 * @return Participant[]
@@ -1350,12 +1378,28 @@ class ParticipantService {
 
 	/**
 	 * @param IQueryBuilder $query
+	 * @param Room $room
 	 * @return Participant[]
 	 */
 	protected function getParticipantsFromQuery(IQueryBuilder $query, Room $room): array {
+		return $this->getParticipantsForRoomsFromQuery($query, [$room->getId() => $room]);
+	}
+
+	/**
+	 * @param IQueryBuilder $query
+	 * @param Room[] $rooms Room ID => Room object
+	 * @psalm-param array<int, Room> $rooms
+	 * @return Participant[]
+	 */
+	protected function getParticipantsForRoomsFromQuery(IQueryBuilder $query, array $rooms): array {
 		$participants = [];
 		$result = $query->executeQuery();
 		while ($row = $result->fetch()) {
+			$room = $rooms[(int) $row['room_id']] ?? null;
+			if ($room === null) {
+				continue;
+			}
+
 			$attendee = $this->attendeeMapper->createAttendeeFromRow($row);
 			if (isset($row['s_id'])) {
 				$session = $this->sessionMapper->createSessionFromRow($row);