<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Translation\Command;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Exception\RuntimeException;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
/**
* Validates XLIFF files syntax and outputs encountered errors.
*
* @author Grégoire Pineau <[email protected]>
* @author Robin Chalas <[email protected]>
* @author Javier Eguiluz <[email protected]>
*/
class XliffLintCommand extends Command
{
protected static $defaultName = 'lint:xliff';
private $format;
private $displayCorrectFiles;
private $directoryIteratorProvider;
private $isReadableProvider;
public function __construct(string $name = null, callable $directoryIteratorProvider = null, callable $isReadableProvider = null)
{
parent::__construct($name);
$this->directoryIteratorProvider = $directoryIteratorProvider;
$this->isReadableProvider = $isReadableProvider;
}
/**
* {@inheritdoc}
*/
protected function configure()
{
$this
->setDescription('Lints a XLIFF file and outputs encountered errors')
->addArgument('filename', null, 'A file or a directory or STDIN')
->addOption('format', null, InputOption::VALUE_REQUIRED, 'The output format', 'txt')
->setHelp(<<<EOF
The <info>%command.name%</info> command lints a XLIFF file and outputs to STDOUT
the first encountered syntax error.
You can validates XLIFF contents passed from STDIN:
<info>cat filename | php %command.full_name%</info>
You can also validate the syntax of a file:
<info>php %command.full_name% filename</info>
Or of a whole directory:
<info>php %command.full_name% dirname</info>
<info>php %command.full_name% dirname --format=json</info>
EOF
)
;
}
protected function execute(InputInterface $input, OutputInterface $output)
{
$io = new SymfonyStyle($input, $output);
$filename = $input->getArgument('filename');
$this->format = $input->getOption('format');
$this->displayCorrectFiles = $output->isVerbose();
if (!$filename) {
if (!$stdin = $this->getStdin()) {
throw new RuntimeException('Please provide a filename or pipe file content to STDIN.');
}
return $this->display($io, array($this->validate($stdin)));
}
if (!$this->isReadable($filename)) {
throw new RuntimeException(sprintf('File or directory "%s" is not readable.', $filename));
}
$filesInfo = array();
foreach ($this->getFiles($filename) as $file) {
$filesInfo[] = $this->validate(file_get_contents($file), $file);
}
return $this->display($io, $filesInfo);
}
private function validate($content, $file = null)
{
$errors = array();
// Avoid: Warning DOMDocument::loadXML(): Empty string supplied as input
if ('' === trim($content)) {
return array('file' => $file, 'valid' => true);
}
libxml_use_internal_errors(true);
$document = new \DOMDocument();
$document->loadXML($content);
if (null !== $targetLanguage = $this->getTargetLanguageFromFile($document)) {
$expectedFileExtension = sprintf('%s.xlf', str_replace('-', '_', $targetLanguage));
$realFileExtension = explode('.', basename($file), 2)[1] ?? '';
if ($expectedFileExtension !== $realFileExtension) {
$errors[] = array(
'line' => -1,
'column' => -1,
'message' => sprintf('There is a mismatch between the file extension ("%s") and the "%s" value used in the "target-language" attribute of the file.', $realFileExtension, $targetLanguage),
);
}
}
$document->schemaValidate(__DIR__.'/../Resources/schemas/xliff-core-1.2-strict.xsd');
foreach (libxml_get_errors() as $xmlError) {
$errors[] = array(
'line' => $xmlError->line,
'column' => $xmlError->column,
'message' => trim($xmlError->message),
);
}
libxml_clear_errors();
libxml_use_internal_errors(false);
return array('file' => $file, 'valid' => 0 === \count($errors), 'messages' => $errors);
}
private function display(SymfonyStyle $io, array $files)
{
switch ($this->format) {
case 'txt':
return $this->displayTxt($io, $files);
case 'json':
return $this->displayJson($io, $files);
default:
throw new InvalidArgumentException(sprintf('The format "%s" is not supported.', $this->format));
}
}
private function displayTxt(SymfonyStyle $io, array $filesInfo)
{
$countFiles = \count($filesInfo);
$erroredFiles = 0;
foreach ($filesInfo as $info) {
if ($info['valid'] && $this->displayCorrectFiles) {
$io->comment('<info>OK</info>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
} elseif (!$info['valid']) {
++$erroredFiles;
$io->text('<error> ERROR </error>'.($info['file'] ? sprintf(' in %s', $info['file']) : ''));
$io->listing(array_map(function ($error) {
// general document errors have a '-1' line number
return -1 === $error['line'] ? $error['message'] : sprintf('Line %d, Column %d: %s', $error['line'], $error['column'], $error['message']);
}, $info['messages']));
}
}
if (0 === $erroredFiles) {
$io->success(sprintf('All %d XLIFF files contain valid syntax.', $countFiles));
} else {
$io->warning(sprintf('%d XLIFF files have valid syntax and %d contain errors.', $countFiles - $erroredFiles, $erroredFiles));
}
return min($erroredFiles, 1);
}
private function displayJson(SymfonyStyle $io, array $filesInfo)
{
$errors = 0;
array_walk($filesInfo, function (&$v) use (&$errors) {
$v['file'] = (string) $v['file'];
if (!$v['valid']) {
++$errors;
}
});
$io->writeln(json_encode($filesInfo, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES));
return min($errors, 1);
}
private function getFiles($fileOrDirectory)
{
if (is_file($fileOrDirectory)) {
yield new \SplFileInfo($fileOrDirectory);
return;
}
foreach ($this->getDirectoryIterator($fileOrDirectory) as $file) {
if (!\in_array($file->getExtension(), array('xlf', 'xliff'))) {
continue;
}
yield $file;
}
}
private function getStdin()
{
if (0 !== ftell(STDIN)) {
return;
}
$inputs = '';
while (!feof(STDIN)) {
$inputs .= fread(STDIN, 1024);
}
return $inputs;
}
private function getDirectoryIterator($directory)
{
$default = function ($directory) {
return new \RecursiveIteratorIterator(
new \RecursiveDirectoryIterator($directory, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
\RecursiveIteratorIterator::LEAVES_ONLY
);
};
if (null !== $this->directoryIteratorProvider) {
return \call_user_func($this->directoryIteratorProvider, $directory, $default);
}
return $default($directory);
}
private function isReadable($fileOrDirectory)
{
$default = function ($fileOrDirectory) {
return is_readable($fileOrDirectory);
};
if (null !== $this->isReadableProvider) {
return \call_user_func($this->isReadableProvider, $fileOrDirectory, $default);
}
return $default($fileOrDirectory);
}
private function getTargetLanguageFromFile(\DOMDocument $xliffContents): ?string
{
foreach ($xliffContents->getElementsByTagName('file')[0]->attributes ?? array() as $attribute) {
if ('target-language' === $attribute->nodeName) {
return $attribute->nodeValue;
}
}
return null;
}
}