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<?php
namespace Courseware\BlockTypes;
/**
* This class represents the content of a Courseware LTI block.
*
* @author Dennis Benz <debenz@uos.de>
* @license GPL2 or any later version
*
* @since Stud.IP 5.3
*/
class Lti extends BlockType
{
public static function getType(): string
{
return 'lti';
}
public static function getTitle(): string
{
return _('LTI');
}
public static function getDescription(): string
{
return _('Einbinden eines externen Tools.');
}
public function initialPayload(): array
{
return [
'title' => '',
'height' => '640',
'tool_id' => '',
'launch_url' => '',
'consumer_key' => '',
'consumer_secret' => '',
'oauth_signature_method' => 'sha1',
'send_lis_person' => false,
'custom_parameters' => '',
];
}
public static function getJsonSchema(): string
{
$schemaFile = __DIR__.'/Lti.json';
return file_get_contents($schemaFile);
}
public function getPayload()
{
$payload = $this->decodePayloadString($this->block['payload']);
$user = \User::findCurrent();
// Remove sensitive lti parameters if user has no edit permission
if (!$this->block->getStructuralElement()->canEdit($user)) {
unset($payload['launch_url']);
unset($payload['consumer_key']);
unset($payload['consumer_secret']);
unset($payload['oauth_signature_method']);
unset($payload['send_lis_person']);
unset($payload['custom_parameters']);
}
return $payload;
}
public static function getCategories(): array
{
return ['external'];
}
public static function getContentTypes(): array
{
return ['rich'];
}
public static function getFileTypes(): array
{
return [];
}
}
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