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<?php |
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declare(strict_types=1); |
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namespace SAML2\XML\xenc; |
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use DOMElement; |
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use SAML2\Utils; |
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use SAML2\XML\ds\KeyInfo; |
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use Webmozart\Assert\Assert; |
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/** |
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* Class representing an encrypted key. |
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* |
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* @package simplesamlphp/saml2 |
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*/ |
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class EncryptedKey extends EncryptedData |
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{ |
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/** @var string */ |
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protected $carriedKeyName; |
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/** @var string */ |
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protected $recipient; |
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/** @var ReferenceList */ |
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protected $referenceList; |
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/** |
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* EncryptedKey constructor. |
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* |
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* @param CipherData $cipherData The CipherData object of this EncryptedData. |
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* @param string|null $id The Id attribute of this object. Optional. |
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* @param string|null $type The Type attribute of this object. Optional. |
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* @param string|null $mimeType The MimeType attribute of this object. Optional. |
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* @param string|null $encoding The Encoding attribute of this object. Optional. |
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* @param string|null $recipient The Recipient attribute of this object. Optional. |
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* @param string|null $carriedKeyName The value of the CarriedKeyName element of this EncryptedData. |
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* @param EncryptionMethod|null $encryptionMethod The EncryptionMethod object of this EncryptedData. Optional. |
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* @param KeyInfo|null $keyInfo The KeyInfo object of this EncryptedData. Optional. |
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* @param ReferenceList|null $referenceList The ReferenceList object of this EncryptedData. Optional. |
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*/ |
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public function __construct( |
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CipherData $cipherData, |
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?string $id = null, |
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?string $type = null, |
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?string $mimeType = null, |
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?string $encoding = null, |
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?string $recipient = null, |
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?string $carriedKeyName = null, |
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?EncryptionMethod $encryptionMethod = null, |
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?KeyInfo $keyInfo = null, |
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?ReferenceList $referenceList = null |
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) { |
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parent::__construct($cipherData, $id, $type, $mimeType, $encoding, $encryptionMethod, $keyInfo); |
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$this->setRecipient($recipient); |
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$this->setReferenceList($referenceList); |
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$this->setCarriedKeyName($carriedKeyName); |
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} |
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/** |
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* Get the value of the CarriedKeyName element. |
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* |
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* @return string|null |
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*/ |
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public function getCarriedKeyName(): ?string |
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{ |
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return $this->carriedKeyName; |
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} |
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/** |
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* @param string|null $carriedKeyName |
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*/ |
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protected function setCarriedKeyName(?string $carriedKeyName): void |
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{ |
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$this->carriedKeyName = $carriedKeyName; |
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} |
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/** |
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* Get the value of the Recipient attribute. |
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* |
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* @return string|null |
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*/ |
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public function getRecipient(): ?string |
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{ |
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return $this->recipient; |
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} |
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/** |
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* @param string|null $recipient |
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*/ |
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protected function setRecipient(?string $recipient): void |
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{ |
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$this->recipient = $recipient; |
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} |
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/** |
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* Get the ReferenceList object. |
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* |
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* @return ReferenceList|null |
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*/ |
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public function getReferenceList(): ?ReferenceList |
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{ |
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return $this->referenceList; |
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} |
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/** |
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* @param ReferenceList|null $referenceList |
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*/ |
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protected function setReferenceList(?ReferenceList $referenceList): void |
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{ |
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$this->referenceList = $referenceList; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public static function fromXML(DOMElement $xml): object |
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{ |
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Assert::same($xml->localName, 'EncryptedKey'); |
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Assert::same($xml->namespaceURI, EncryptedKey::NS); |
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$cipherData = CipherData::getChildrenOfClass($xml); |
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Assert::count($cipherData, 1, 'No or more than one CipherData element found in <xenc:EncryptedKey>.'); |
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$encryptionMethod = EncryptionMethod::getChildrenOfClass($xml); |
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Assert::maxCount( |
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$encryptionMethod, |
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1, |
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'No more than one EncryptionMethod element allowed in <xenc:EncryptedKey>.' |
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); |
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$keyInfo = KeyInfo::getChildrenOfClass($xml); |
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Assert::maxCount($keyInfo, 1, 'No more than one KeyInfo element allowed in <xenc:EncryptedKey>.'); |
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$referenceLists = ReferenceList::getChildrenOfClass($xml); |
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Assert::maxCount($keyInfo, 1, 'Only one ReferenceList element allowed in <xenc:EncryptedKey>.'); |
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$carriedKeyNames = Utils::xpQuery($xml, './xenc:CarriedKeyName'); |
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Assert::maxCount($carriedKeyNames, 1, 'Only one CarriedKeyName element allowed in <xenc:EncryptedKey>.'); |
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return new self( |
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$cipherData[0], |
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self::getAttribute($xml, 'Id', null), |
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self::getAttribute($xml, 'Type', null), |
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self::getAttribute($xml, 'MimeType', null), |
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self::getAttribute($xml, 'Type', null), |
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self::getAttribute($xml, 'Recipient', null), |
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count($carriedKeyNames) === 1 ? $carriedKeyNames[0]->textContent : null, |
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count($encryptionMethod) === 1 ? $encryptionMethod[0] : null, |
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count($keyInfo) === 1 ? $keyInfo[0] : null, |
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count($referenceLists) === 1 ? $referenceLists[0] : null |
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); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function toXML(DOMElement $parent = null): DOMElement |
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{ |
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$e = parent::toXML($parent); |
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if ($this->referenceList !== null) { |
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$this->referenceList->toXML($e); |
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} |
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if ($this->carriedKeyName !== null) { |
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$ckn = $e->ownerDocument->createElementNS(self::NS, self::NS_PREFIX . ':CarriedKeyName'); |
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$ckn->textContent = $this->carriedKeyName; |
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$e->appendChild($ckn); |
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} |
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if ($this->recipient !== null) { |
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$e->setAttribute('Recipient', $this->recipient); |
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} |
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return $e; |
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} |
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} |
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