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<?php declare(strict_types=1);
/*
* This file is part of PHP Copy/Paste Detector (PHPCPD).
*
* (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.
*/
namespace SebastianBergmann\PHPCPD\Log;
use const ENT_COMPAT;
use function file_put_contents;
use function function_exists;
use function htmlspecialchars;
use function mb_convert_encoding;
use function ord;
use function preg_replace;
use function strlen;
use function utf8_encode;
use DOMDocument;
use SebastianBergmann\PHPCPD\CodeCloneMap;
abstract class AbstractXmlLogger
{
/**
* @var DOMDocument
*/
protected $document;
/**
* @var string
*/
private $filename;
public function __construct(string $filename)
{
$this->document = new DOMDocument('1.0', 'UTF-8');
$this->document->formatOutput = true;
$this->filename = $filename;
}
abstract public function processClones(CodeCloneMap $clones);
protected function flush(): void
{
file_put_contents($this->filename, $this->document->saveXML());
}
protected function convertToUtf8(string $string): string
{
if (!$this->isUtf8($string)) {
if (function_exists('mb_convert_encoding')) {
$string = mb_convert_encoding($string, 'UTF-8');
} else {
$string = utf8_encode($string);
}
}
return $string;
}
protected function isUtf8(string $string): bool
{
$length = strlen($string);
for ($i = 0; $i < $length; $i++) {
if (ord($string[$i]) < 0x80) {
$n = 0;
} elseif ((ord($string[$i]) & 0xE0) === 0xC0) {
$n = 1;
} elseif ((ord($string[$i]) & 0xF0) === 0xE0) {
$n = 2;
} elseif ((ord($string[$i]) & 0xF0) === 0xF0) {
$n = 3;
} else {
return false;
}
for ($j = 0; $j < $n; $j++) {
if ((++$i === $length) || ((ord($string[$i]) & 0xC0) !== 0x80)) {
return false;
}
}
}
return true;
}
protected function escapeForXml(string $string): string
{
$string = $this->convertToUtf8($string);
$string = preg_replace(
'/[^\x09\x0A\x0D\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]/u',
"\xEF\xBF\xBD",
$string
);
return htmlspecialchars($string, ENT_COMPAT, 'UTF-8');
}
}