94 lines
3.1 KiB
PHP
94 lines
3.1 KiB
PHP
<?php
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namespace Drupal\system;
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use Drupal\Component\Transliteration\TransliterationInterface;
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use Drupal\Component\Utility\Unicode;
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use Drupal\Core\Access\CsrfTokenGenerator;
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use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
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use Symfony\Component\HttpFoundation\File\Exception\AccessDeniedException;
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use Symfony\Component\HttpFoundation\JsonResponse;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\DependencyInjection\ContainerInterface;
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/**
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* Controller routines for machine name transliteration routes.
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*/
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class MachineNameController implements ContainerInjectionInterface {
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/**
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* The transliteration helper.
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*
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* @var \Drupal\Component\Transliteration\TransliterationInterface
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*/
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protected $transliteration;
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/**
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* The token generator.
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*
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* @var \Drupal\Core\Access\CsrfTokenGenerator
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*/
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protected $tokenGenerator;
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/**
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* Constructs a MachineNameController object.
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*
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* @param \Drupal\Component\Transliteration\TransliterationInterface $transliteration
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* The transliteration helper.
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* @param \Drupal\Core\Access\CsrfTokenGenerator $token_generator
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* The token generator.
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*/
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public function __construct(TransliterationInterface $transliteration, CsrfTokenGenerator $token_generator) {
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$this->transliteration = $transliteration;
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$this->tokenGenerator = $token_generator;
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}
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/**
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* {@inheritdoc}
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*/
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public static function create(ContainerInterface $container) {
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return new static(
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$container->get('transliteration'),
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$container->get('csrf_token')
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);
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}
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/**
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* Transliterates a string in given language. Various postprocessing possible.
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*
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* @param \Symfony\Component\HttpFoundation\Request $request
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* The input string and language for the transliteration.
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* Optionally may contain the replace_pattern, replace, lowercase parameters.
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*
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* @return \Symfony\Component\HttpFoundation\JsonResponse
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* The transliterated string.
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*/
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public function transliterate(Request $request) {
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$text = $request->query->get('text');
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$langcode = $request->query->get('langcode');
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$replace_pattern = $request->query->get('replace_pattern');
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$replace_token = $request->query->get('replace_token');
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$replace = $request->query->get('replace');
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$lowercase = $request->query->get('lowercase');
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$transliterated = $this->transliteration->transliterate($text, $langcode, '_');
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if ($lowercase) {
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$transliterated = Unicode::strtolower($transliterated);
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}
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if (isset($replace_pattern) && isset($replace)) {
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if (!isset($replace_token)) {
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throw new AccessDeniedException("Missing 'replace_token' query parameter.");
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}
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elseif (!$this->tokenGenerator->validate($replace_token, $replace_pattern)) {
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throw new AccessDeniedException("Invalid 'replace_token' query parameter.");
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}
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// Quote the pattern delimiter and remove null characters to avoid the e
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// or other modifiers being injected.
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$transliterated = preg_replace('@' . strtr($replace_pattern, ['@' => '\@', chr(0) => '']) . '@', $replace, $transliterated);
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}
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return new JsonResponse($transliterated);
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}
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}
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