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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\Assert\Assert; |
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use SimpleSAML\XML\Exception\SchemaViolationException; |
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use SimpleSAML\XML\StringElementTrait; |
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use function str_replace; |
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/** |
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* Trait grouping common functionality for simple elements with base64 textContent |
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* |
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* @package simplesamlphp/xml-common |
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*/ |
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trait Base64ElementTrait |
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{ |
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use StringElementTrait; |
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/** |
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* Sanitize the content of the element. |
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* |
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* @param string $content The unsanitized textContent |
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* @throws \Exception on failure |
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* @return string |
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*/ |
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protected function sanitizeContent(string $content): string |
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{ |
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return str_replace(["\f", "\r", "\n", "\t", "\v", ' '], '', $content); |
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} |
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/** |
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* Validate the content of the element. |
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* |
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* @param string $content The value to go in the XML textContent |
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* @throws \Exception on failure |
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* @return void |
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*/ |
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protected function validateContent(string $content): void |
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{ |
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// Note: content must already be sanitized before validating |
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Assert::stringPlausibleBase64( |
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$this->sanitizeContent($content), |
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SchemaViolationException::class |
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); |
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} |
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/** @return string */ |
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abstract public static function getLocalName(): string; |
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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
