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<?php
/*
* This file is part of PHPUnit.
*
* (c) Sebastian Bergmann <sebastian@phpunit.de>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* XML helpers.
*/
class PHPUnit_Util_XML
{
/**
* Load an $actual document into a DOMDocument. This is called
* from the selector assertions.
*
* If $actual is already a DOMDocument, it is returned with
* no changes. Otherwise, $actual is loaded into a new DOMDocument
* as either HTML or XML, depending on the value of $isHtml. If $isHtml is
* false and $xinclude is true, xinclude is performed on the loaded
* DOMDocument.
*
* Note: prior to PHPUnit 3.3.0, this method loaded a file and
* not a string as it currently does. To load a file into a
* DOMDocument, use loadFile() instead.
*
* @param string|DOMDocument $actual
* @param bool $isHtml
* @param string $filename
* @param bool $xinclude
* @param bool $strict
*
* @return DOMDocument
*/
public static function load($actual, $isHtml = false, $filename = '', $xinclude = false, $strict = false)
{
if ($actual instanceof DOMDocument) {
return $actual;
}
if (!is_string($actual)) {
throw new PHPUnit_Framework_Exception('Could not load XML from ' . gettype($actual));
}
if ($actual === '') {
throw new PHPUnit_Framework_Exception('Could not load XML from empty string');
}
// Required for XInclude on Windows.
if ($xinclude) {
$cwd = getcwd();
@chdir(dirname($filename));
}
$document = new DOMDocument;
$document->preserveWhiteSpace = false;
$internal = libxml_use_internal_errors(true);
$message = '';
$reporting = error_reporting(0);
if ('' !== $filename) {
// Necessary for xinclude
$document->documentURI = $filename;
}
if ($isHtml) {
$loaded = $document->loadHTML($actual);
} else {
$loaded = $document->loadXML($actual);
}
if (!$isHtml && $xinclude) {
$document->xinclude();
}
foreach (libxml_get_errors() as $error) {
$message .= "\n" . $error->message;
}
libxml_use_internal_errors($internal);
error_reporting($reporting);
if ($xinclude) {
@chdir($cwd);
}
if ($loaded === false || ($strict && $message !== '')) {
if ($filename !== '') {
throw new PHPUnit_Framework_Exception(
sprintf(
'Could not load "%s".%s',
$filename,
$message != '' ? "\n" . $message : ''
)
);
} else {
if ($message === '') {
$message = 'Could not load XML for unknown reason';
}
throw new PHPUnit_Framework_Exception($message);
}
}
return $document;
}
/**
* Loads an XML (or HTML) file into a DOMDocument object.
*
* @param string $filename
* @param bool $isHtml
* @param bool $xinclude
* @param bool $strict
*
* @return DOMDocument
*/
public static function loadFile($filename, $isHtml = false, $xinclude = false, $strict = false)
{
$reporting = error_reporting(0);
$contents = file_get_contents($filename);
error_reporting($reporting);
if ($contents === false) {
throw new PHPUnit_Framework_Exception(
sprintf(
'Could not read "%s".',
$filename
)
);
}
return self::load($contents, $isHtml, $filename, $xinclude, $strict);
}
/**
* @param DOMNode $node
*/
public static function removeCharacterDataNodes(DOMNode $node)
{
if ($node->hasChildNodes()) {
for ($i = $node->childNodes->length - 1; $i >= 0; $i--) {
if (($child = $node->childNodes->item($i)) instanceof DOMCharacterData) {
$node->removeChild($child);
}
}
}
}
/**
* Escapes a string for the use in XML documents
* Any Unicode character is allowed, excluding the surrogate blocks, FFFE,
* and FFFF (not even as character reference).
* See http://www.w3.org/TR/xml/#charsets
*
* @param string $string
*
* @return string
*/
public static function prepareString($string)
{
return preg_replace(
'/[\\x00-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]/',
'',
htmlspecialchars(
PHPUnit_Util_String::convertToUtf8($string),
ENT_QUOTES,
'UTF-8'
)
);
}
/**
* "Convert" a DOMElement object into a PHP variable.
*
* @param DOMElement $element
*
* @return mixed
*/
public static function xmlToVariable(DOMElement $element)
{
$variable = null;
switch ($element->tagName) {
case 'array':
$variable = [];
foreach ($element->childNodes as $entry) {
if (!$entry instanceof DOMElement || $entry->tagName !== 'element') {
continue;
}
$item = $entry->childNodes->item(0);
if ($item instanceof DOMText) {
$item = $entry->childNodes->item(1);
}
$value = self::xmlToVariable($item);
if ($entry->hasAttribute('key')) {
$variable[(string) $entry->getAttribute('key')] = $value;
} else {
$variable[] = $value;
}
}
break;
case 'object':
$className = $element->getAttribute('class');
if ($element->hasChildNodes()) {
$arguments = $element->childNodes->item(1)->childNodes;
$constructorArgs = [];
foreach ($arguments as $argument) {
if ($argument instanceof DOMElement) {
$constructorArgs[] = self::xmlToVariable($argument);
}
}
$class = new ReflectionClass($className);
$variable = $class->newInstanceArgs($constructorArgs);
} else {
$variable = new $className;
}
break;
case 'boolean':
$variable = $element->textContent == 'true' ? true : false;
break;
case 'integer':
case 'double':
case 'string':
$variable = $element->textContent;
settype($variable, $element->tagName);
break;
}
return $variable;
}
}
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