cloud_bbb/lib/BigBlueButton/API.php

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<?php
namespace OCA\BigBlueButton\BigBlueButton;
use BigBlueButton\BigBlueButton;
use BigBlueButton\Parameters\CreateMeetingParameters;
use BigBlueButton\Parameters\JoinMeetingParameters;
use BigBlueButton\Parameters\GetRecordingsParameters;
use BigBlueButton\Core\Record;
use BigBlueButton\Parameters\DeleteRecordingsParameters;
use BigBlueButton\Parameters\IsMeetingRunningParameters;
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use OCP\EventDispatcher\IEventDispatcher;
use OCA\BigBlueButton\Event\MeetingStartedEvent;
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use OCA\BigBlueButton\Db\Room;
use OCA\BigBlueButton\Permission;
use OCA\BigBlueButton\Crypto;
use OCA\BigBlueButton\UrlHelper;
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use OCP\IConfig;
use OCP\IURLGenerator;
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use OCP\IL10N;
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class API {
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/** @var IConfig */
private $config;
/** @var IURLGenerator */
private $urlGenerator;
/** @var Permission */
private $permission;
/** @var BigBlueButton|null */
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private $server;
/** @var Crypto */
private $crypto;
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/** @var IEventDispatcher */
private $eventDispatcher;
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/** @var IL10N */
private $l10n;
/** @var UrlHelper */
private $urlHelper;
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public function __construct(
IConfig $config,
IURLGenerator $urlGenerator,
Permission $permission,
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Crypto $crypto,
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IEventDispatcher $eventDispatcher,
IL10N $l10n,
UrlHelper $urlHelper
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) {
$this->config = $config;
$this->urlGenerator = $urlGenerator;
$this->permission = $permission;
$this->crypto = $crypto;
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$this->eventDispatcher = $eventDispatcher;
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$this->l10n = $l10n;
$this->urlHelper = $urlHelper;
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}
private function getServer() {
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if (!$this->server) {
$apiUrl = $this->config->getAppValue('bbb', 'api.url');
$secret = $this->config->getAppValue('bbb', 'api.secret');
$this->server = new BigBlueButton($apiUrl, $secret);
}
return $this->server;
}
/**
* Create join url.
*
* @return string join url
*/
public function createJoinUrl(Room $room, int $creationTime, string $displayname, ?string $uid = null) {
$password = $this->permission->isModerator($room, $uid) ? $room->moderatorPassword : $room->attendeePassword;
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$joinMeetingParams = new JoinMeetingParameters($room->uid, $displayname, $password);
$joinMeetingParams->setCreationTime($creationTime);
$joinMeetingParams->setJoinViaHtml5(true);
$joinMeetingParams->setRedirect(true);
$joinMeetingParams->setGuest($uid === null);
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if ($uid) {
$joinMeetingParams->setUserId($uid);
// $joinMeetingParams->setAvatarURL();
}
return $this->getServer()->getJoinMeetingURL($joinMeetingParams);
}
/**
* Create meeting room.
*
* @return int creation time
*/
public function createMeeting(Room $room, Presentation $presentation = null) {
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$bbb = $this->getServer();
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$meetingParams = $this->buildMeetingParams($room, $presentation);
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try {
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$response = $bbb->createMeeting($meetingParams);
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} catch (\Exception $e) {
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throw new \Exception('Can not process create request: ' . $bbb->getCreateMeetingUrl($meetingParams));
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}
if (!$response->success()) {
throw new \Exception('Can not create meeting');
}
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if ($response->getMessageKey() !== 'duplicateWarning') {
$this->eventDispatcher->dispatch(MeetingStartedEvent::class, new MeetingStartedEvent($room));
}
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return $response->getCreationTime();
}
private function buildMeetingParams(Room $room, Presentation $presentation = null): CreateMeetingParameters {
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$createMeetingParams = new CreateMeetingParameters($room->uid, $room->name);
$createMeetingParams->setAttendeePassword($room->attendeePassword);
$createMeetingParams->setModeratorPassword($room->moderatorPassword);
$createMeetingParams->setRecord($room->record);
$createMeetingParams->setAllowStartStopRecording($room->record);
$createMeetingParams->setLogoutUrl($this->urlGenerator->getBaseUrl());
$mac = $this->crypto->calculateHMAC($room->uid);
$endMeetingUrl = $this->urlGenerator->linkToRouteAbsolute('bbb.hook.meetingEnded', ['token' => $room->uid, 'mac' => $mac]);
$createMeetingParams->setEndCallbackUrl($endMeetingUrl);
$recordingReadyUrl = $this->urlGenerator->linkToRouteAbsolute('bbb.hook.recordingReady', ['token' => $room->uid, 'mac' => $mac]);
$createMeetingParams->setRecordingReadyCallbackUrl($recordingReadyUrl);
$invitationUrl = $this->urlHelper->linkToInvitationAbsolute($room);
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$createMeetingParams->setModeratorOnlyMessage($this->l10n->t('To invite someone to the meeting, send them this link: %s', [$invitationUrl]));
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if (!empty($room->welcome)) {
$createMeetingParams->setWelcomeMessage($room->welcome);
}
if ($room->maxParticipants > 0) {
$createMeetingParams->setMaxParticipants($room->maxParticipants);
}
if ($presentation !== null && $presentation->isValid()) {
$createMeetingParams->addPresentation($presentation->getUrl(), null, $presentation->getFilename());
}
if ($room->access === Room::ACCESS_WAITING_ROOM) {
$createMeetingParams->setGuestPolicyAskModerator();
}
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return $createMeetingParams;
}
public function getRecording(string $recordId) {
$recordingParams = new GetRecordingsParameters();
$recordingParams->setRecordId($recordId);
$recordingParams->setState('any');
$response = $this->getServer()->getRecordings($recordingParams);
if (!$response->success()) {
throw new \Exception('Could not process get recording request');
}
$records = $response->getRecords();
if (count($records) === 0) {
throw new \Exception('Found no record with given id');
}
return $this->recordToArray($records[0]);
}
public function getRecordings(Room $room) {
$recordingParams = new GetRecordingsParameters();
$recordingParams->setMeetingId($room->uid);
$recordingParams->setState('processing,processed,published,unpublished');
$response = $this->getServer()->getRecordings($recordingParams);
if (!$response->success()) {
throw new \Exception('Could not process get recordings request');
}
$records = $response->getRecords();
return array_map(function ($record) {
return $this->recordToArray($record);
}, $records);
}
public function deleteRecording(string $recordingId): bool {
$deleteParams = new DeleteRecordingsParameters($recordingId);
$response = $this->getServer()->deleteRecordings($deleteParams);
return $response->isDeleted();
}
private function recordToArray(Record $record) {
return [
'id' => $record->getRecordId(),
'meetingId' => $record->getMeetingId(),
'name' => $record->getName(),
'published' => $record->isPublished(),
'state' => $record->getState(),
'startTime' => $record->getStartTime(),
'participants' => $record->getParticipantCount(),
'type' => $record->getPlaybackType(),
'length' => $record->getPlaybackLength(),
'url' => $record->getPlaybackUrl(),
'metas' => $record->getMetas(),
];
}
public function check($url, $secret) {
$server = new BigBlueButton($url, $secret);
$meetingParams = new IsMeetingRunningParameters('foobar');
try {
$response = $server->isMeetingRunning($meetingParams);
if (!$response->success() && !$response->failed()) {
return 'invalid-url';
}
if (!$response->success()) {
return 'invalid-secret';
}
return 'success';
} catch (\Exception $e) {
return 'invalid-url';
}
}
public function getVersion($url = null) {
$server = $url === null ? $this->getServer() : new BigBlueButton($url, '');
return $server->getApiVersion()->getVersion();
}
public function isRunning(Room $room): bool {
$isMeetingRunningParams = new IsMeetingRunningParameters($room->getUid());
$response = $this->getServer()->isMeetingRunning($isMeetingRunningParams);
return $response->success() && $response->isRunning();
}
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}