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<?php |
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namespace Yiisoft\Yii\Web\Data\Formatter; |
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use DOMDocument; |
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use DOMElement; |
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use DOMException; |
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use DOMText; |
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use Psr\Http\Message\ResponseInterface; |
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use Yiisoft\Strings\StringHelper; |
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use Yiisoft\Yii\Web\Data\DataResponse; |
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use Yiisoft\Yii\Web\Data\DataResponseFormatterInterface; |
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final class XmlDataResponseFormatter implements DataResponseFormatterInterface |
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{ |
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/** |
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* @var string the Content-Type header for the response |
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*/ |
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private string $contentType = 'application/xml'; |
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/** |
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* @var string the XML version |
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*/ |
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private string $version = '1.0'; |
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/** |
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* @var string the XML encoding. |
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*/ |
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private string $encoding = 'UTF-8'; |
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/** |
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* @var string the name of the root element. If set to false, null or is empty then no root tag should be added. |
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*/ |
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private string $rootTag = 'response'; |
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/** |
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* @var string the name of the elements that represent the array elements with numeric keys. |
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*/ |
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private string $itemTag = 'item'; |
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/** |
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* @var bool whether to interpret objects implementing the [[\Traversable]] interface as arrays. |
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* Defaults to `true`. |
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*/ |
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private bool $useTraversableAsArray = true; |
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/** |
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* @var bool if object tags should be added |
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*/ |
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private bool $useObjectTags = true; |
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public function format(DataResponse $dataResponse): ResponseInterface |
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{ |
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$content = ''; |
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$data = $dataResponse->getData(); |
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if ($data !== null) { |
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$dom = new DOMDocument($this->version, $this->encoding); |
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if (!empty($this->rootTag)) { |
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$root = new DOMElement($this->rootTag); |
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$dom->appendChild($root); |
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$this->buildXml($root, $data); |
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} else { |
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$this->buildXml($dom, $data); |
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} |
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$content = $dom->saveXML(); |
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} |
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$response = $dataResponse->getResponse(); |
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$response->getBody()->write($content); |
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return $response->withHeader('Content-Type', $this->contentType . '; ' . $this->encoding); |
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} |
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public function withVersion(string $version): self |
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{ |
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$formatter = clone $this; |
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$formatter->version = $version; |
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return $formatter; |
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} |
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public function withEncoding(string $encoding): self |
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{ |
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$formatter = clone $this; |
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$formatter->encoding = $encoding; |
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return $formatter; |
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} |
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public function withRootTag(string $rootTag): self |
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{ |
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$formatter = clone $this; |
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$formatter->rootTag = $rootTag; |
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return $formatter; |
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} |
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public function withItemTag(string $itemTag): self |
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{ |
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$formatter = clone $this; |
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$formatter->itemTag = $itemTag; |
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return $formatter; |
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} |
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public function withUseTraversableAsArray(bool $useTraversableAsArray): self |
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{ |
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$formatter = clone $this; |
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$formatter->useTraversableAsArray = $useTraversableAsArray; |
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return $formatter; |
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} |
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public function withUseObjectTags(bool $useObjectTags): self |
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{ |
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$formatter = clone $this; |
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$formatter->useObjectTags = $useObjectTags; |
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return $formatter; |
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} |
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public function withContentType(string $contentType): self |
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{ |
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$formatter = clone $this; |
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$formatter->contentType = $contentType; |
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return $formatter; |
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} |
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/** |
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* @param DOMElement $element |
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* @param mixed $data |
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*/ |
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protected function buildXml($element, $data): void |
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{ |
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if (is_array($data) || |
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($this->useTraversableAsArray && $data instanceof \Traversable) |
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) { |
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foreach ($data as $name => $value) { |
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if (is_int($name) && is_object($value)) { |
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$this->buildXml($element, $value); |
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} elseif (is_array($value) || is_object($value)) { |
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$child = new DOMElement($this->getValidXmlElementName($name)); |
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$element->appendChild($child); |
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$this->buildXml($child, $value); |
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} else { |
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$child = new DOMElement($this->getValidXmlElementName($name)); |
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$element->appendChild($child); |
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$child->appendChild(new DOMText($this->formatScalarValue($value))); |
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} |
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} |
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} elseif (is_object($data)) { |
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if ($this->useObjectTags) { |
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$child = new DOMElement(StringHelper::basename(get_class($data))); |
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$element->appendChild($child); |
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} else { |
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$child = $element; |
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} |
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$array = []; |
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foreach ($data as $name => $value) { |
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$array[$name] = $value; |
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} |
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$this->buildXml($child, $array); |
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} else { |
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$element->appendChild(new DOMText($this->formatScalarValue($data))); |
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} |
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} |
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/** |
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* Formats scalar value to use in XML text node. |
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* |
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* @param int|string|bool|float $value a scalar value. |
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* @return string string representation of the value. |
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*/ |
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protected function formatScalarValue($value): string |
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{ |
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if ($value === true) { |
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return 'true'; |
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} |
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if ($value === false) { |
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return 'false'; |
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} |
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if (is_float($value)) { |
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return StringHelper::floatToString($value); |
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} |
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return (string)$value; |
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} |
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/** |
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* Returns element name ready to be used in DOMElement if |
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* name is not empty, is not int and is valid. |
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* |
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* Falls back to [[itemTag]] otherwise. |
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* |
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* @param mixed $name |
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* @return string |
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*/ |
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protected function getValidXmlElementName($name): string |
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{ |
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if (empty($name) || is_int($name) || !$this->isValidXmlName($name)) { |
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return $this->itemTag; |
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} |
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return $name; |
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} |
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/** |
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* Checks if name is valid to be used in XML. |
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* |
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* @param mixed $name |
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* @return bool |
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* @see http://stackoverflow.com/questions/2519845/how-to-check-if-string-is-a-valid-xml-element-name/2519943#2519943 |
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*/ |
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protected function isValidXmlName($name): bool |
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{ |
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try { |
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new DOMElement($name); |
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} catch (DOMException $e) { |
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return false; |
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} |
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return true; |
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} |
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} |
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yiisoft /
yii-web
Loading history...
This check compares calls to functions or methods with their respective definitions. If the call has less arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.