PHP libxml_set_external_entity_loader示例

示例#1

文件： libxml_set_external_entity_loader_variation1.php 项目： badlamer/hhvm

$xml = <<<XML
<!DOCTYPE foo PUBLIC "-//FOO/BAR" "http://example.com/foobar">
<foo>bar&fooz;</foo>
XML;
$dtd = <<<DTD
<!ELEMENT foo (#PCDATA)>
<!ENTITY % fooentity PUBLIC
   "-//FOO/ENTITY"
   "fooentity.ent">
%fooentity;
DTD;
$entity = <<<ENT
<!ENTITY fooz "baz">
ENT;
libxml_set_external_entity_loader(function ($public, $system, $context) use($dtd, $entity) {
    static $first = true;
    var_dump($public);
    var_dump($system);
    var_dump($context);
    $f = fopen("php://temp", "r+");
    fwrite($f, $first ? $dtd : $entity);
    $first = false;
    rewind($f);
    return $f;
});
$dd = new DOMDocument();
$dd->substituteEntities = true;
$dd->resolveExternals = true;
$r = $dd->loadXML($xml);
var_dump($dd->validate());
echo "Done.\n";

示例#2

文件： XHTML10ParsingHelper.php 项目： webfactory/dom

 public function __construct()
 {
     libxml_set_external_entity_loader(function ($public, $system, $context) {
         $catalogDir = __DIR__ . '/../../../xml-catalog/';
         switch ($public) {
             case '-//W3C//DTD XHTML 1.0 Strict//EN':
                 return $catalogDir . 'xhtml1-strict.dtd';
             case '-//W3C//ENTITIES Latin 1 for XHTML//EN':
                 return $catalogDir . 'xhtml-lat1.ent';
             case '-//W3C//ENTITIES Symbols for XHTML//EN':
                 return $catalogDir . 'xhtml-symbol.ent';
             case '-//W3C//ENTITIES Special for XHTML//EN':
                 return $catalogDir . 'xhtml-special.ent';
             default:
                 return $system;
         }
     });
 }

示例#3

文件： Dom.php 项目： nblair/magescotch

 /**
  * Validate dom document
  *
  * @param \DOMDocument $dom
  * @param string $schema Absolute schema file path or URN
  * @param string $errorFormat
  * @return array of errors
  * @throws \Exception
  */
 public static function validateDomDocument(
     \DOMDocument $dom,
     $schema,
     $errorFormat = self::ERROR_FORMAT_DEFAULT
 ) {
     if (!self::$urnResolver) {
         self::$urnResolver = new UrnResolver();
     }
     $schema = self::$urnResolver->getRealPath($schema);
     libxml_use_internal_errors(true);
     libxml_set_external_entity_loader([self::$urnResolver, 'registerEntityLoader']);
     try {
         $result = $dom->schemaValidate($schema);
         $errors = [];
         if (!$result) {
             $validationErrors = libxml_get_errors();
             if (count($validationErrors)) {
                 foreach ($validationErrors as $error) {
                     $errors[] = self::_renderErrorMessage($error, $errorFormat);
                 }
             } else {
                 $errors[] = 'Unknown validation error';
             }
         }
     } catch (\Exception $exception) {
         libxml_use_internal_errors(false);
         throw $exception;
     }
     libxml_set_external_entity_loader(null);
     libxml_use_internal_errors(false);
     return $errors;
 }

示例#4

文件： libxml_set_external_entity_loader_basic.php 项目： badlamer/hhvm

<?php

$xml = <<<XML
<!DOCTYPE foo PUBLIC "-//FOO/BAR" "http://example.com/foobar">
<foo>bar</foo>
XML;
$dtd = <<<DTD
<!ELEMENT foo (#PCDATA)>
DTD;
libxml_set_external_entity_loader(function ($public, $system, $context) use($dtd) {
    var_dump($public);
    var_dump($system);
    var_dump($context);
    $f = fopen("php://temp", "r+");
    fwrite($f, $dtd);
    rewind($f);
    return $f;
});
$dd = new DOMDocument();
$r = $dd->loadXML($xml);
var_dump($dd->validate());
echo "Done.\n";

示例#5

文件： libxml_set_external_entity_loader_variation2.php 项目： badlamer/hhvm

<?php

chdir(__DIR__);
$xml = <<<XML
<!DOCTYPE foo PUBLIC "-//FOO/BAR" "foobar.dtd">
<foo>bar</foo>
XML;
$dtd = <<<DTD
<!ELEMENT foo (#PCDATA)>
DTD;
libxml_set_external_entity_loader(function ($public, $system, $context) {
    var_dump($public, $system);
    return null;
});
$dd = new DOMDocument();
$r = $dd->loadXML($xml);
var_dump($dd->validate());
libxml_set_external_entity_loader(NULL);
file_put_contents(__DIR__ . "/foobar.dtd", $dtd);
var_dump($dd->validate());
echo "Done.\n";
error_reporting(0);
@unlink(__DIR__ . "/foobar.dtd");

示例#6

文件： libxml_set_external_entity_loader_error1.php 项目： badlamer/hhvm

<?php

$xml = <<<XML
<!DOCTYPE foo PUBLIC "-//FOO/BAR" "http://example.com/foobar">
<foo>bar</foo>
XML;
$dd = new DOMDocument();
$r = $dd->loadXML($xml);
var_dump(libxml_set_external_entity_loader([]));
var_dump(libxml_set_external_entity_loader());
var_dump(libxml_set_external_entity_loader(function () {
}, 2));
var_dump(libxml_set_external_entity_loader(function ($a, $b, $c, $d) {
}));
var_dump($dd->validate());
echo "Done.\n";

示例#7

文件： schematest.php 项目： gmgj/gjsoap

<?php

/**
 * @link http://stackoverflow.com/questions/13865149/speeding-up-xml-schema-validations-of-a-batch-of-xml-files-against-the-same-xml
 */
$mapping = ['http://www.w3.org/2002/08/xhtml/xhtml1-transitional.xsd' => 'schema/xhtml1-transitional.xsd', 'http://www.w3.org/2001/xml.xsd' => 'schema/xml.xsd'];
libxml_set_external_entity_loader(function ($public, $system, $context) use($mapping) {
    if (is_file($system)) {
        return $system;
    }
    if (isset($mapping[$system])) {
        return __DIR__ . '/' . $mapping[$system];
    }
    $message = sprintf("Failed to load external entity: Public: %s; System: %s; Context: %s", var_export($public, 1), var_export($system, 1), strtr(var_export($context, 1), [" (\n  " => '(', "\n " => '', "\n" => '']));
    throw new RuntimeException($message);
});
$data_dom = new DOMDocument();
$data_dom->load('test-data.xml');
$data_dom->xinclude();
// Multiple validations using the schemaValidate method.
for ($attempt = 1; $attempt <= 3; $attempt++) {
    $start = time();
    echo "schemaValidate: Attempt #{$attempt} returns ";
    if (!$data_dom->schemaValidate('test-schema.xsd')) {
        echo "Invalid!";
    } else {
        echo "Valid!";
    }
    $end = time();
    echo " in " . ($end - $start) . " seconds.\n";
}

示例#8

文件： Dom.php 项目： Doability/magento2dev

 /**
  * Validate dom document
  *
  * @param \DOMDocument $dom
  * @param string $schema Absolute schema file path or URN
  * @param string $errorFormat
  * @return array of errors
  * @throws \Exception
  */
 public static function validateDomDocument(\DOMDocument $dom, $schema, $errorFormat = self::ERROR_FORMAT_DEFAULT)
 {
     if (!function_exists('libxml_set_external_entity_loader')) {
         return [];
     }
     if (!self::$urnResolver) {
         self::$urnResolver = new UrnResolver();
     }
     $schema = self::$urnResolver->getRealPath($schema);
     libxml_use_internal_errors(true);
     libxml_set_external_entity_loader([self::$urnResolver, 'registerEntityLoader']);
     $errors = [];
     try {
         $result = $dom->schemaValidate($schema);
         if (!$result) {
             $errors = self::getXmlErrors($errorFormat);
         }
     } catch (\Exception $exception) {
         libxml_use_internal_errors(false);
         throw $exception;
     }
     libxml_set_external_entity_loader(null);
     libxml_use_internal_errors(false);
     return $errors;
 }