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<?php
namespace Studip\LTI13a;
use OAT\Library\Lti1p3Core\Registration\RegistrationRepositoryInterface;
use OAT\Library\Lti1p3Core\Registration\RegistrationInterface;
class RegistrationManager implements RegistrationRepositoryInterface
{
#[\Override]
public function find(string $identifier): ?RegistrationInterface
{
//The identifier is the ID of a tool.
$tool = \LtiTool::find($identifier);
if (!$tool) {
return null;
}
return new Registration($tool);
}
/**
* @inheritDoc
*/
#[\Override]
public function findAll(): array
{
$tools = \LtiTool::findBySQL('TRUE');
$registrations = [];
foreach ($tools as $tool) {
$registrations[] = new Registration($tool);
}
return $registrations;
}
#[\Override]
public function findByClientId(string $clientId): ?RegistrationInterface
{
//Find a registration by its client-ID. The client-ID is equivalent to the tool-ID in Stud.IP.
if (!$clientId) {
//Nothing to search for.
return null;
}
$tool = \LtiTool::find($clientId);
if ($tool) {
return new Registration($tool);
}
return null;
}
#[\Override]
public function findByPlatformIssuer(string $issuer, string $clientId = null): ?RegistrationInterface
{
//Only handle requests for registrations of this Stud.IP:
if ($issuer !== \Config::get()->STUDIP_INSTALLATION_ID) {
//Invalid issuer.
return null;
}
return $this->findByClientId($clientId);
}
#[\Override]
public function findByToolIssuer(string $issuer, string $clientId = null): ?RegistrationInterface
{
//Tool registrations are not supported at this moment.
return null;
}
}
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