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<?php
namespace Icinga\Module\Director\Data;
use InvalidArgumentException;
use ipl\Html\Error;
class RecursiveUtf8Validator
{
protected static $rowNum;
protected static $column;
/**
* @param array $rows Usually array of stdClass
* @return bool
*/
public static function validateRows($rows)
{
foreach ($rows as self::$rowNum => $row) {
foreach ($row as self::$column => $value) {
static::assertUtf8($value);
}
}
return true;
}
protected static function assertUtf8($value)
{
if (\is_string($value)) {
static::assertUtf8String($value);
} elseif (\is_array($value) || $value instanceof \stdClass) {
foreach ((array) $value as $k => $v) {
static::assertUtf8($k);
static::assertUtf8($v);
}
} elseif ($value !== null && !\is_scalar($value)) {
throw new InvalidArgumentException("Cannot validate " . Error::getPhpTypeName($value));
}
}
protected static function assertUtf8String($string)
{
if (@\iconv('UTF-8', 'UTF-8', $string) != $string) {
$row = self::$rowNum;
if (is_int($row)) {
$row++;
}
throw new InvalidArgumentException(\sprintf(
'Invalid UTF-8 on row %s, column %s: "%s" (%s)',
$row,
self::$column,
\iconv('UTF-8', 'UTF-8//IGNORE', $string),
'0x' . \bin2hex($string)
));
}
}
}
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