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<?php
namespace PicoFeed\Parser;
use DOMDocument;
use PHPUnit_Framework_TestCase;
class XmlParserTest extends PHPUnit_Framework_TestCase
{
public function testEmpty()
{
$this->assertFalse(XmlParser::getDomDocument(''));
$this->assertFalse(XmlParser::getSimpleXml(''));
$this->assertNotFalse(XmlParser::getHtmlDocument(''));
}
public function testGetEncodingFromMetaTag()
{
$this->assertEquals('iso-8859-1', XmlParser::getEncodingFromMetaTag('<html><head><meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"/></head></html>'));
$this->assertEquals('iso-8859-1', XmlParser::getEncodingFromMetaTag('<html><head><meta charset="iso-8859-1"></head></html>'));
}
public function testGetEncodingFromXmlTag()
{
$this->assertEquals('utf-8', XmlParser::getEncodingFromXmlTag("<?xml version='1.0' encoding='UTF-8'?><?xml-stylesheet"));
$this->assertEquals('utf-8', XmlParser::getEncodingFromXmlTag('<?xml version="1.0" encoding="UTF-8"?><feed xml:'));
$this->assertEquals('windows-1251', XmlParser::getEncodingFromXmlTag('<?xml version="1.0" encoding="Windows-1251"?><rss version="2.0">'));
$this->assertEquals('', XmlParser::getEncodingFromXmlTag("<?xml version='1.0'?><?xml-stylesheet"));
}
public function testScanForXEE()
{
$xml = <<<XML
<?xml version="1.0"?>
<!DOCTYPE results [<!ENTITY harmless "completely harmless">]>
<results>
<result>This result is &harmless;</result>
</results>
XML;
$this->assertFalse(XmlParser::getDomDocument($xml));
}
public function testScanForXXE()
{
$file = tempnam(sys_get_temp_dir(), 'PicoFeed_XmlParser');
file_put_contents($file, 'Content Injection');
$xml = <<<XML
<?xml version="1.0"?>
<!DOCTYPE root
[
<!ENTITY foo SYSTEM "file://$file">
]>
<results>
<result>&foo;</result>
</results>
XML;
$this->assertFalse(XmlParser::getDomDocument($xml));
unlink($file);
}
public function testScanSimpleXML()
{
return <<<XML
<?xml version="1.0"?>
<results>
<result>test</result>
</results>
XML;
$result = XmlParser::getSimpleXml($xml);
$this->assertTrue($result instanceof SimpleXMLElement);
$this->assertEquals($result->result, 'test');
}
public function testScanDomDocument()
{
return <<<XML
<?xml version="1.0"?>
<results>
<result>test</result>
</results>
XML;
$result = XmlParser::getDomDocument($xml);
$this->assertTrue($result instanceof DOMDocument);
$node = $result->getElementsByTagName('result')->item(0);
$this->assertEquals($node->nodeValue, 'test');
}
public function testScanInvalidXml()
{
$xml = <<<XML
<foo>test</bar>
XML;
$this->assertFalse(XmlParser::getDomDocument($xml));
$this->assertFalse(XmlParser::getSimpleXml($xml));
}
public function testScanXmlWithDTD()
{
$xml = <<<XML
<?xml version="1.0"?>
<!DOCTYPE results [
<!ELEMENT results (result+)>
<!ELEMENT result (#PCDATA)>
]>
<results>
<result>test</result>
</results>
XML;
$result = XmlParser::getDomDocument($xml);
$this->assertTrue($result instanceof DOMDocument);
$this->assertTrue($result->validate());
}
}
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