/**
* Validate that the file is correctly encoded in the provided charset.
*
* @throws CharsetException
* @throws \Exception
*/
protected function validateEncoding()
{
$handle = fopen($this->filePath, 'r');
if (false === $handle) {
throw new \Exception(sprintf('Unable to read the file "%s".', $this->filePath));
}
$errors = [];
$lineNo = 0;
while (false !== ($line = fgets($handle)) && count($errors) < $this->maxErrors) {
$lineNo++;
if (false === iconv($this->charset, $this->charset, $line)) {
$errors[] = $lineNo;
}
}
fclose($handle);
if (count($errors) > 0) {
$message = count($errors) === $this->maxErrors ? sprintf('The first %s erroneous lines are %s.', $this->maxErrors, implode(', ', $errors)) : sprintf('The lines %s are erroneous.', implode(', ', $errors));
throw new CharsetException(sprintf('The file "%s" is not correctly encoded in %s. ', $this->filePath, $this->charset) . $message);
}
$this->stepExecution->addSummaryInfo('charset_validator.title', $this->charset . ' OK');
}