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efrain |
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<?php
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namespace Packback\Lti1p3\MessageValidators;
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use Packback\Lti1p3\LtiConstants;
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use Packback\Lti1p3\LtiException;
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class DeepLinkMessageValidator extends AbstractMessageValidator
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{
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public static function getMessageType(): string
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{
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return LtiConstants::MESSAGE_TYPE_DEEPLINK;
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}
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/**
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* @throws LtiException
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*/
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public static function validate(array $jwtBody): void
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{
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static::validateGenericMessage($jwtBody);
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if (empty($jwtBody[LtiConstants::DL_DEEP_LINK_SETTINGS])) {
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throw new LtiException('Missing Deep Linking Settings');
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}
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$deep_link_settings = $jwtBody[LtiConstants::DL_DEEP_LINK_SETTINGS];
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if (empty($deep_link_settings['deep_link_return_url'])) {
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throw new LtiException('Missing Deep Linking Return URL');
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}
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if (empty($deep_link_settings['accept_types']) || !in_array('ltiResourceLink', $deep_link_settings['accept_types'])) {
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throw new LtiException('Must support resource link placement types');
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}
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if (empty($deep_link_settings['accept_presentation_document_targets'])) {
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throw new LtiException('Must support a presentation type');
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}
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}
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}
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