244 lines
8.1 KiB
PHP
244 lines
8.1 KiB
PHP
|
<?php
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This file is part of the Symfony package.
|
||
|
|
*
|
||
|
|
* (c) Fabien Potencier <fabien@symfony.com>
|
||
|
|
*
|
||
|
|
* For the full copyright and license information, please view the LICENSE
|
||
|
|
* file that was distributed with this source code.
|
||
|
|
*/
|
||
|
|
|
||
|
|
namespace Symfony\Component\Config\Util;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* XMLUtils is a bunch of utility methods to XML operations.
|
||
|
|
*
|
||
|
|
* This class contains static methods only and is not meant to be instantiated.
|
||
|
|
*
|
||
|
|
* @author Fabien Potencier <fabien@symfony.com>
|
||
|
|
* @author Martin Hasoň <martin.hason@gmail.com>
|
||
|
|
*/
|
||
|
|
class XmlUtils
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* This class should not be instantiated.
|
||
|
|
*/
|
||
|
|
private function __construct()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Loads an XML file.
|
||
|
|
*
|
||
|
|
* @param string $file An XML file path
|
||
|
|
* @param string|callable|null $schemaOrCallable An XSD schema file path, a callable, or null to disable validation
|
||
|
|
*
|
||
|
|
* @return \DOMDocument
|
||
|
|
*
|
||
|
|
* @throws \InvalidArgumentException When loading of XML file returns error
|
||
|
|
* @throws \RuntimeException When DOM extension is missing
|
||
|
|
*/
|
||
|
|
public static function loadFile($file, $schemaOrCallable = null)
|
||
|
|
{
|
||
|
|
if (!\extension_loaded('dom')) {
|
||
|
|
throw new \RuntimeException('Extension DOM is required.');
|
||
|
|
}
|
||
|
|
|
||
|
|
$content = @file_get_contents($file);
|
||
|
|
if ('' === trim($content)) {
|
||
|
|
throw new \InvalidArgumentException(sprintf('File %s does not contain valid XML, it is empty.', $file));
|
||
|
|
}
|
||
|
|
|
||
|
|
$internalErrors = libxml_use_internal_errors(true);
|
||
|
|
$disableEntities = libxml_disable_entity_loader(true);
|
||
|
|
libxml_clear_errors();
|
||
|
|
|
||
|
|
$dom = new \DOMDocument();
|
||
|
|
$dom->validateOnParse = true;
|
||
|
|
if (!$dom->loadXML($content, LIBXML_NONET | (\defined('LIBXML_COMPACT') ? LIBXML_COMPACT : 0))) {
|
||
|
|
libxml_disable_entity_loader($disableEntities);
|
||
|
|
|
||
|
|
throw new \InvalidArgumentException(implode("\n", static::getXmlErrors($internalErrors)));
|
||
|
|
}
|
||
|
|
|
||
|
|
$dom->normalizeDocument();
|
||
|
|
|
||
|
|
libxml_use_internal_errors($internalErrors);
|
||
|
|
libxml_disable_entity_loader($disableEntities);
|
||
|
|
|
||
|
|
foreach ($dom->childNodes as $child) {
|
||
|
|
if (XML_DOCUMENT_TYPE_NODE === $child->nodeType) {
|
||
|
|
throw new \InvalidArgumentException('Document types are not allowed.');
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (null !== $schemaOrCallable) {
|
||
|
|
$internalErrors = libxml_use_internal_errors(true);
|
||
|
|
libxml_clear_errors();
|
||
|
|
|
||
|
|
$e = null;
|
||
|
|
if (\is_callable($schemaOrCallable)) {
|
||
|
|
try {
|
||
|
|
$valid = \call_user_func($schemaOrCallable, $dom, $internalErrors);
|
||
|
|
} catch (\Exception $e) {
|
||
|
|
$valid = false;
|
||
|
|
}
|
||
|
|
} elseif (!\is_array($schemaOrCallable) && is_file((string) $schemaOrCallable)) {
|
||
|
|
$schemaSource = file_get_contents((string) $schemaOrCallable);
|
||
|
|
$valid = @$dom->schemaValidateSource($schemaSource);
|
||
|
|
} else {
|
||
|
|
libxml_use_internal_errors($internalErrors);
|
||
|
|
|
||
|
|
throw new \InvalidArgumentException('The schemaOrCallable argument has to be a valid path to XSD file or callable.');
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$valid) {
|
||
|
|
$messages = static::getXmlErrors($internalErrors);
|
||
|
|
if (empty($messages)) {
|
||
|
|
$messages = array(sprintf('The XML file "%s" is not valid.', $file));
|
||
|
|
}
|
||
|
|
throw new \InvalidArgumentException(implode("\n", $messages), 0, $e);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
libxml_clear_errors();
|
||
|
|
libxml_use_internal_errors($internalErrors);
|
||
|
|
|
||
|
|
return $dom;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts a \DOMElement object to a PHP array.
|
||
|
|
*
|
||
|
|
* The following rules applies during the conversion:
|
||
|
|
*
|
||
|
|
* * Each tag is converted to a key value or an array
|
||
|
|
* if there is more than one "value"
|
||
|
|
*
|
||
|
|
* * The content of a tag is set under a "value" key (<foo>bar</foo>)
|
||
|
|
* if the tag also has some nested tags
|
||
|
|
*
|
||
|
|
* * The attributes are converted to keys (<foo foo="bar"/>)
|
||
|
|
*
|
||
|
|
* * The nested-tags are converted to keys (<foo><foo>bar</foo></foo>)
|
||
|
|
*
|
||
|
|
* @param \DOMElement $element A \DOMElement instance
|
||
|
|
* @param bool $checkPrefix Check prefix in an element or an attribute name
|
||
|
|
*
|
||
|
|
* @return array A PHP array
|
||
|
|
*/
|
||
|
|
public static function convertDomElementToArray(\DOMElement $element, $checkPrefix = true)
|
||
|
|
{
|
||
|
|
$prefix = (string) $element->prefix;
|
||
|
|
$empty = true;
|
||
|
|
$config = array();
|
||
|
|
foreach ($element->attributes as $name => $node) {
|
||
|
|
if ($checkPrefix && !\in_array((string) $node->prefix, array('', $prefix), true)) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
$config[$name] = static::phpize($node->value);
|
||
|
|
$empty = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$nodeValue = false;
|
||
|
|
foreach ($element->childNodes as $node) {
|
||
|
|
if ($node instanceof \DOMText) {
|
||
|
|
if ('' !== trim($node->nodeValue)) {
|
||
|
|
$nodeValue = trim($node->nodeValue);
|
||
|
|
$empty = false;
|
||
|
|
}
|
||
|
|
} elseif ($checkPrefix && $prefix != (string) $node->prefix) {
|
||
|
|
continue;
|
||
|
|
} elseif (!$node instanceof \DOMComment) {
|
||
|
|
$value = static::convertDomElementToArray($node, $checkPrefix);
|
||
|
|
|
||
|
|
$key = $node->localName;
|
||
|
|
if (isset($config[$key])) {
|
||
|
|
if (!\is_array($config[$key]) || !\is_int(key($config[$key]))) {
|
||
|
|
$config[$key] = array($config[$key]);
|
||
|
|
}
|
||
|
|
$config[$key][] = $value;
|
||
|
|
} else {
|
||
|
|
$config[$key] = $value;
|
||
|
|
}
|
||
|
|
|
||
|
|
$empty = false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (false !== $nodeValue) {
|
||
|
|
$value = static::phpize($nodeValue);
|
||
|
|
if (\count($config)) {
|
||
|
|
$config['value'] = $value;
|
||
|
|
} else {
|
||
|
|
$config = $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return !$empty ? $config : null;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts an xml value to a PHP type.
|
||
|
|
*
|
||
|
|
* @param mixed $value
|
||
|
|
*
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
public static function phpize($value)
|
||
|
|
{
|
||
|
|
$value = (string) $value;
|
||
|
|
$lowercaseValue = strtolower($value);
|
||
|
|
|
||
|
|
switch (true) {
|
||
|
|
case 'null' === $lowercaseValue:
|
||
|
|
return;
|
||
|
|
case ctype_digit($value):
|
||
|
|
$raw = $value;
|
||
|
|
$cast = (int) $value;
|
||
|
|
|
||
|
|
return '0' == $value[0] ? octdec($value) : (((string) $raw === (string) $cast) ? $cast : $raw);
|
||
|
|
case isset($value[1]) && '-' === $value[0] && ctype_digit(substr($value, 1)):
|
||
|
|
$raw = $value;
|
||
|
|
$cast = (int) $value;
|
||
|
|
|
||
|
|
return '0' == $value[1] ? octdec($value) : (((string) $raw === (string) $cast) ? $cast : $raw);
|
||
|
|
case 'true' === $lowercaseValue:
|
||
|
|
return true;
|
||
|
|
case 'false' === $lowercaseValue:
|
||
|
|
return false;
|
||
|
|
case isset($value[1]) && '0b' == $value[0].$value[1]:
|
||
|
|
return bindec($value);
|
||
|
|
case is_numeric($value):
|
||
|
|
return '0x' === $value[0].$value[1] ? hexdec($value) : (float) $value;
|
||
|
|
case preg_match('/^0x[0-9a-f]++$/i', $value):
|
||
|
|
return hexdec($value);
|
||
|
|
case preg_match('/^(-|\+)?[0-9]+(\.[0-9]+)?$/', $value):
|
||
|
|
return (float) $value;
|
||
|
|
default:
|
||
|
|
return $value;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
protected static function getXmlErrors($internalErrors)
|
||
|
|
{
|
||
|
|
$errors = array();
|
||
|
|
foreach (libxml_get_errors() as $error) {
|
||
|
|
$errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
|
||
|
|
LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
|
||
|
|
$error->code,
|
||
|
|
trim($error->message),
|
||
|
|
$error->file ?: 'n/a',
|
||
|
|
$error->line,
|
||
|
|
$error->column
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
libxml_clear_errors();
|
||
|
|
libxml_use_internal_errors($internalErrors);
|
||
|
|
|
||
|
|
return $errors;
|
||
|
|
}
|
||
|
|
}
|