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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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/**
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 * Whoops - php errors for cool kids
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 * @author Filipe Dobreira <http://github.com/filp>
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 */
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namespace Whoops\Handler;
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use SimpleXMLElement;
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use Whoops\Exception\Formatter;
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/**
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 * Catches an exception and converts it to an XML
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 * response. Additionally can also return exception
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 * frames for consumption by an API.
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 */
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class XmlResponseHandler extends Handler
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{
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    /**
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     * @var bool
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     */
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    private $returnFrames = false;
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    /**
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     * @param  bool|null  $returnFrames
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     * @return bool|static
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     */
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    public function addTraceToOutput($returnFrames = null)
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    {
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        if (func_num_args() == 0) {
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            return $this->returnFrames;
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        }
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        $this->returnFrames = (bool) $returnFrames;
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        return $this;
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    }
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    /**
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     * @return int
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     */
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    public function handle()
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    {
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        $response = [
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            'error' => Formatter::formatExceptionAsDataArray(
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                $this->getInspector(),
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                $this->addTraceToOutput()
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            ),
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        ];
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        echo self::toXml($response);
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        return Handler::QUIT;
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    }
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    /**
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     * @return string
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     */
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    public function contentType()
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    {
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        return 'application/xml';
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    }
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    /**
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     * @param  SimpleXMLElement  $node Node to append data to, will be modified in place
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     * @param  array|\Traversable $data
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     * @return SimpleXMLElement  The modified node, for chaining
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     */
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    private static function addDataToNode(\SimpleXMLElement $node, $data)
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    {
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        assert(is_array($data) || $data instanceof Traversable);
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        foreach ($data as $key => $value) {
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            if (is_numeric($key)) {
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                // Convert the key to a valid string
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                $key = "unknownNode_". (string) $key;
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            }
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            // Delete any char not allowed in XML element names
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            $key = preg_replace('/[^a-z0-9\-\_\.\:]/i', '', $key);
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            if (is_array($value)) {
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                $child = $node->addChild($key);
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                self::addDataToNode($child, $value);
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            } else {
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                $value = str_replace('&', '&amp;', print_r($value, true));
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                $node->addChild($key, $value);
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            }
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        }
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        return $node;
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    }
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    /**
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     * The main function for converting to an XML document.
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     *
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     * @param  array|\Traversable $data
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     * @return string            XML
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     */
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    private static function toXml($data)
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    {
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        assert(is_array($data) || $data instanceof Traversable);
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        $node = simplexml_load_string("<?xml version='1.0' encoding='utf-8'?><root />");
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        return self::addDataToNode($node, $data)->asXML();
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    }
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}