This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V. More...

Inheritance diagram for ilLTIAppEventListener:

Collaboration diagram for ilLTIAppEventListener:

Static Public Member Functions

static handleEvent (string $a_component, string $a_event, array $a_parameter)

Handle an event in a listener.

Parameters

string	$a_component	component, e.g. "Modules/Forum" or "Services/User"
string	$a_event	event e.g. "createUser", "updateUser", "deleteUser", ...
array	$a_parameter	parameter array (assoc), array("name" => ..., "phone_office" => ...)

More...

static handleCronUpdate (ilDateTime $since)

static handleOutcomeWithoutLP (int $a_obj_id, int $a_usr_id, ?float $a_percentage)

static handleEvent (string $a_component, string $a_event, array $a_parameter)

Handle an event in a listener. More...

Protected Member Functions
	__construct ()
	ilLTIAppEventListener constructor. More...

	handleUpdateStatus (int $a_obj_id, int $a_usr_id, int $a_status, int $a_percentage)
	Handle update status. More...

	doCronUpdate (ilDateTime $since)

	isLTIAuthMode (string $auth_mode)

	tryOutcomeService (int $resource, string $ext_account, int $a_status, int $a_percentage)
	try outcome service More...

Static Protected Member Functions
static	getInstance ()

Private Attributes
ilLogger	$logger = null

ilLTIDataConnector	$connector = null

Static Private Attributes
static ilLTIAppEventListener	$instance = null

Detailed Description

This file is part of ILIAS, a powerful learning management system published by ILIAS open source e-Learning e.V.

ILIAS is licensed with the GPL-3.0, see https://www.gnu.org/licenses/gpl-3.0.en.html You should have received a copy of said license along with the source code, too.

If this is not the case or you just want to try ILIAS, you'll find us at: https://www.ilias.de https://github.com/ILIAS-eLearning Class ilLTIAppEventListener

Definition at line 24 of file class.ilLTIAppEventListener.php.

Constructor & Destructor Documentation

◆ __construct()

ilLTIAppEventListener::__construct ( )

protected

ilLTIAppEventListener constructor.

Definition at line 36 of file class.ilLTIAppEventListener.php.

    {
        global $DIC;
 
        $this->logger = ilLoggerFactory::getLogger('ltis');
        $this->connector = new ilLTIDataConnector();
    }

References $DIC, ilLoggerFactory\getLogger(), and ILIAS\Repository\logger().

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Member Function Documentation

◆ doCronUpdate()

ilLTIAppEventListener::doCronUpdate ( ilDateTime $since )

protected

Parameters

ilDateTime $since

Exceptions

ilDateTimeException

Definition at line 91 of file class.ilLTIAppEventListener.php.

                                                      : void
    {
        $this->logger->debug('Starting cron update for lti outcome service');
 
        $resources = $this->connector->lookupResourcesForAllUsersSinceDate($since);
        foreach ($resources as $consumer_ext_account => $user_resources) {
            list($consumer, $ext_account) = explode('__', $consumer_ext_account, 2);
 
            $login = ilObjUser::_checkExternalAuthAccount('lti_' . $consumer, $ext_account);
            if (!$login) {
                $this->logger->info('No user found for lti_' . $consumer . ' -> ' . $ext_account);
                continue;
            }
            $usr_id = ilObjUser::_lookupId($login);
            foreach ($user_resources as $resource_info) {
                $this->logger->debug('Found resource: ' . $resource_info);
                list($resource_id, $resource_ref_id) = explode('__', $resource_info);
 
                // lookup lp status
                $status = ilLPStatus::_lookupStatus(
                    ilObject::_lookupObjId((int) $resource_ref_id),
                    $usr_id
                );
                $percentage = ilLPStatus::_lookupPercentage(
                    ilObject::_lookupObjId((int) $resource_ref_id),
                    $usr_id
                );
                $this->tryOutcomeService((int) $resource_id, $ext_account, $status, $percentage);
            }
        }
    }

References $resources, ilObjUser\_checkExternalAuthAccount(), ilObjUser\_lookupId(), ilObject\_lookupObjId(), ilLPStatus\_lookupPercentage(), ilLPStatus\_lookupStatus(), ILIAS\Repository\logger(), and tryOutcomeService().

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◆ getInstance()

static ilLTIAppEventListener::getInstance ( )

staticprotected

Definition at line 44 of file class.ilLTIAppEventListener.php.

                                           : \ilLTIAppEventListener
    {
        if (!self::$instance instanceof \ilLTIAppEventListener) {
            self::$instance = new self();
        }
        return self::$instance;
    }

References $instance.

Referenced by handleCronUpdate(), and handleEvent().

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◆ handleCronUpdate()

static ilLTIAppEventListener::handleCronUpdate ( ilDateTime $since )

static

Parameters

ilDateTime $since

Returns: bool

Exceptions

ilDateTimeException

Definition at line 193 of file class.ilLTIAppEventListener.php.

                                                              : bool
    {
        $listener = self::getInstance();
        $listener->doCronUpdate($since);
        return true;
    }

References getInstance().

Referenced by ilLTICronOutcomeService\run().

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◆ handleEvent()

static ilLTIAppEventListener::handleEvent	(	string	$a_component,
		string	$a_event,
		array	$a_parameter
	)

static

Handle an event in a listener.

Parameters

string	$a_component	component, e.g. "Modules/Forum" or "Services/User"
string	$a_event	event e.g. "createUser", "updateUser", "deleteUser", ...
array	$a_parameter	parameter array (assoc), array("name" => ..., "phone_office" => ...)

Implements ilAppEventListener.

Definition at line 170 of file class.ilLTIAppEventListener.php.

                                                                                                : void
    {
        $logger = ilLoggerFactory::getLogger('ltis');
        $logger->debug('Handling event: ' . $a_event . ' from ' . $a_component);
 
        if ($a_component == 'Services/Tracking') {
            if ($a_event == 'updateStatus') {
                $listener = self::getInstance();
                $listener->handleUpdateStatus(
                    $a_parameter['obj_id'],
                    $a_parameter['usr_id'],
                    $a_parameter['status'],
                    $a_parameter['percentage']
                );
            }
        }
    }

References $logger, ilLogger\debug(), getInstance(), and ilLoggerFactory\getLogger().

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◆ handleOutcomeWithoutLP()

static ilLTIAppEventListener::handleOutcomeWithoutLP	(	int	$a_obj_id,
		int	$a_usr_id,
		?float	$a_percentage
	)

static

Definition at line 201 of file class.ilLTIAppEventListener.php.

                                                                                                     : void
    {
        global $DIC;
        $score = 0;
        $logger = ilLoggerFactory::getLogger('ltis');
 
        $auth_mode = ilObjUser::_lookupAuthMode($a_usr_id);
        if (strpos($auth_mode, 'lti_') === false) {
            $logger->debug('Ignoring outcome for non-LTI-user.');
            return;
        }
        //check if LearningPress enabled
        $olp = ilObjectLP::getInstance($a_obj_id);
        if (ilLPObjSettings::LP_MODE_DEACTIVATED != $olp->getCurrentMode()) {
            $logger->debug('Ignoring outcome if LP is activated.');
            return;
        }
 
        if ($a_percentage && $a_percentage > 0) {
            $score = round($a_percentage / 100, 4);
        }
 
        $connector = new ilLTIDataConnector();
        $ext_account = ilObjUser::_lookupExternalAccount($a_usr_id);
        list($lti, $consumer) = explode('_', $auth_mode);
 
        // iterate through all references
        $refs = ilObject::_getAllReferences($a_obj_id);
        foreach ((array) $refs as $ref_id) {
            $resources = $connector->lookupResourcesForUserObjectRelation(
                $ref_id,
                $ext_account,
                (int) $consumer
            );
 
            $logger->debug('Resources for update: ' . dump($resources));
 
            foreach ($resources as $resource) {
                // $this->tryOutcomeService($resource, $ext_account, $a_status, $a_percentage);
                $resource_link = \ILIAS\LTI\ToolProvider\ResourceLink::fromRecordId($resource, $connector);
                if ($resource_link->hasOutcomesService()) {
                    $user = \ILIAS\LTI\ToolProvider\UserResult::fromResourceLink($resource_link, $ext_account);
                    $logger->debug('Sending score: ' . (string) $score);
                    $outcome = new \ILIAS\LTI\ToolProvider\Outcome((string) $score);
 
                    $resource_link->doOutcomesService(
                        \ILIAS\LTI\ToolProvider\ResourceLink::EXT_WRITE,
                        $outcome,
                        $user
                    );
                }
            }
        }
    }

References $connector, $DIC, $logger, $ref_id, $resources, ilObject\_getAllReferences(), ilObjUser\_lookupAuthMode(), ilObjUser\_lookupExternalAccount(), ilLogger\debug(), ILIAS\LTI\ToolProvider\ResourceLink\fromRecordId(), ILIAS\LTI\ToolProvider\UserResult\fromResourceLink(), ilObjectLP\getInstance(), ilLoggerFactory\getLogger(), ilLTIDataConnector\lookupResourcesForUserObjectRelation(), and ilLPObjSettings\LP_MODE_DEACTIVATED.

Referenced by ilObjSCORMTracking\storeJsApiCmi().

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◆ handleUpdateStatus()

ilLTIAppEventListener::handleUpdateStatus	(	int	$a_obj_id,
		int	$a_usr_id,
		int	$a_status,
		int	$a_percentage
	)

protected

Handle update status.

Definition at line 56 of file class.ilLTIAppEventListener.php.

                                                                                                         : void
    {
        $this->logger->debug('Handle update status');
        $auth_mode = ilObjUser::_lookupAuthMode($a_usr_id);
        if (!$this->isLTIAuthMode($auth_mode)) {
            $this->logger->debug('Ignoring update for non-LTI-user.');
            return;
        }
        $ext_account = ilObjUser::_lookupExternalAccount($a_usr_id);
        list($lti, $consumer) = explode('_', $auth_mode);
 
        // iterate through all references
        $refs = ilObject::_getAllReferences($a_obj_id);
        $this->logger->debug('Refs for : ' . $a_obj_id . ': ' . count($refs));
        foreach ((array) $refs as $ref_id) {
            $resources = $this->connector->lookupResourcesForUserObjectRelation(
                $ref_id,
                $ext_account,
                (int) $consumer
            );
 
            $this->logger->debug('Resources for update:');
            $this->logger->dump($resources, ilLogLevel::DEBUG);
 
            foreach ($resources as $resource) {
                $this->tryOutcomeService((int) $resource, $ext_account, $a_status, $a_percentage);
            }
        }
    }

References $ref_id, $resources, ilObject\_getAllReferences(), ilObjUser\_lookupAuthMode(), ilObjUser\_lookupExternalAccount(), ilLogLevel\DEBUG, isLTIAuthMode(), ILIAS\Repository\logger(), and tryOutcomeService().

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◆ isLTIAuthMode()

ilLTIAppEventListener::isLTIAuthMode ( string $auth_mode )

protected

Definition at line 123 of file class.ilLTIAppEventListener.php.

                                                       : bool
    {
        return strpos($auth_mode, 'lti_') === 0;
    }

Referenced by handleUpdateStatus().

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◆ tryOutcomeService()

ilLTIAppEventListener::tryOutcomeService	(	int	$resource,
		string	$ext_account,
		int	$a_status,
		int	$a_percentage
	)

protected

try outcome service

Definition at line 132 of file class.ilLTIAppEventListener.php.

                                                                                                              : void
    {
        $resource_link = \ILIAS\LTI\ToolProvider\ResourceLink::fromRecordId($resource, $this->connector);
        if (!$resource_link->hasOutcomesService()) {
            $this->logger->debug('No outcome service available for resource id: ' . $resource);
            return;
        }
        $this->logger->debug('Trying outcome service with status ' . $a_status . ' and percentage ' . $a_percentage);
        $user = \ILIAS\LTI\ToolProvider\UserResult::fromResourceLink($resource_link, $ext_account);
 
        if ($a_status == ilLPStatus::LP_STATUS_COMPLETED_NUM) {
            $score = 1;
        } elseif (
            $a_status == ilLPStatus::LP_STATUS_FAILED_NUM ||
            $a_status == ilLPStatus::LP_STATUS_NOT_ATTEMPTED_NUM
        ) {
            $score = 0;
        } elseif (!$a_percentage) {
            $score = 0;
        } else {
            $score = (int) round($a_percentage / 100);
        }
 
        $this->logger->debug('Sending score: ' . (string) $score);
 
        $outcome = new \ILIAS\LTI\ToolProvider\Outcome((string) $score);
 
        $resource_link->doOutcomesService(
            \ILIAS\LTI\ToolProvider\ResourceLink::EXT_WRITE,
            $outcome,
            $user
        );
    }