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<?php |
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declare(strict_types=1); |
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namespace SimpleSAML\XML; |
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use DOMElement; |
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use SimpleSAML\XML\Assert\Assert; |
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use SimpleSAML\XML\Exception\{InvalidDOMElementException, InvalidValueTypeException}; |
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use SimpleSAML\XML\Type\{QNameValue, StringValue, ValueTypeInterface}; |
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use function defined; |
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use function strval; |
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/** |
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* Trait for elements that hold a typed textContent value. |
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* |
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* @package simplesaml/xml-common |
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*/ |
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trait TypedTextContentTrait |
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{ |
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/** @var \SimpleSAML\XML\Type\ValueTypeInterface */ |
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protected ValueTypeInterface $content; |
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/** |
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* Set the content of the element. |
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* |
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* @param \SimpleSAML\XML\Type\ValueTypeInterface $content The value to go in the XML textContent |
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*/ |
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protected function setContent(ValueTypeInterface $content): void |
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{ |
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Assert::isAOf($content, static::getTextContentType(), InvalidValueTypeException::class); |
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$this->content = $content; |
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} |
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/** |
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* Get the typed content of the element |
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* |
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* @return \SimpleSAML\XML\Type\ValueTypeInterface |
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*/ |
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public function getContent(): ValueTypeInterface |
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{ |
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return $this->content; |
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} |
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/** |
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* Create a class from XML |
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* |
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* @param \DOMElement $xml |
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* @return static |
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*/ |
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public static function fromXML(DOMElement $xml): static |
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{ |
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Assert::same($xml->localName, static::getLocalName(), InvalidDOMElementException::class); |
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Assert::same($xml->namespaceURI, static::NS, InvalidDOMElementException::class); |
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$type = self::getTextContentType(); |
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if ($type === QNameValue::class) { |
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$qName = QNameValue::fromDocument($xml->textContent, $xml); |
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$text = $qName->getRawValue(); |
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} else { |
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$text = $xml->textContent; |
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} |
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return new static($type::fromString($text)); |
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} |
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/** |
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* Create XML from this class |
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* |
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* @param \DOMElement|null $parent |
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* @return \DOMElement |
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*/ |
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public function toXML(?DOMElement $parent = null): DOMElement |
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{ |
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$e = $this->instantiateParentElement($parent); |
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if ($this->getTextContentType() === QNameValue::class) { |
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if (!$e->lookupPrefix($this->getContent()->getNamespaceURI()->getValue())) { |
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$e->setAttributeNS( |
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'http://www.w3.org/2000/xmlns/', |
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'xmlns:' . $this->getContent()->getNamespacePrefix()->getValue(), |
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$this->getContent()->getNamespaceURI()->getValue(), |
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); |
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} |
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} |
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$e->textContent = strval($this->getContent()); |
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return $e; |
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} |
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/** |
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* Get the type the element's textContent value. |
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* |
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* @return class-string |
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*/ |
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public static function getTextContentType(): string |
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{ |
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if (defined('static::TEXTCONTENT_TYPE')) { |
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$type = static::TEXTCONTENT_TYPE; |
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} else { |
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$type = StringValue::class; |
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} |
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Assert::isAOf($type, ValueTypeInterface::class, InvalidValueTypeException::class); |
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return $type; |
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} |
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/** |
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* Create a document structure for this element |
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* |
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* @param \DOMElement|null $parent The element we should append to. |
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* @return \DOMElement |
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*/ |
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abstract public function instantiateParentElement(?DOMElement $parent = null): DOMElement; |
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} |
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simplesamlphp /
xml-common
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