www.aleph1.co.uk Git - yaffs-website/blob - web/modules/contrib/redirect/src/Form/RedirectForm.php

   1 <?php
   2
   3 namespace Drupal\redirect\Form;
   4
   5 use Drupal\Component\Utility\UrlHelper;
   6 use Drupal\Core\Entity\ContentEntityForm;
   7 use Drupal\Core\Language\Language;
   8 use Drupal\Core\Language\LanguageInterface;
   9 use Drupal\Core\Routing\MatchingRouteNotFoundException;
  10 use Drupal\Core\Url;
  11 use Drupal\redirect\Entity\Redirect;
  12 use Drupal\Core\Form\FormStateInterface;
  13
  14 class RedirectForm extends ContentEntityForm {
  15
  16   /**
  17    * {@inheritdoc}
  18    */
  19   protected function prepareEntity() {
  20     /** @var \Drupal\redirect\Entity\Redirect $redirect */
  21     $redirect = $this->entity;
  22
  23     if ($redirect->isNew()) {
  24
  25       // To pass in the query set parameters into GET as follows:
  26       // source_query[key1]=value1&source_query[key2]=value2
  27       $source_query = array();
  28       if ($this->getRequest()->get('source_query')) {
  29         $source_query = $this->getRequest()->get('source_query');
  30       }
  31
  32       $redirect_options = array();
  33       $redirect_query = array();
  34       if ($this->getRequest()->get('redirect_options')) {
  35         $redirect_options = $this->getRequest()->get('redirect_options');
  36         if (isset($redirect_options['query'])) {
  37           $redirect_query = $redirect_options['query'];
  38           unset($redirect_options['query']);
  39         }
  40       }
  41
  42       $source_url = urldecode($this->getRequest()->get('source'));
  43       if (!empty($source_url)) {
  44         $redirect->setSource($source_url, $source_query);
  45       }
  46
  47       $redirect_url = urldecode($this->getRequest()->get('redirect'));
  48       if (!empty($redirect_url)) {
  49         try {
  50           $redirect->setRedirect($redirect_url, $redirect_query, $redirect_options);
  51         }
  52         catch (MatchingRouteNotFoundException $e) {
  53           drupal_set_message(t('Invalid redirect URL %url provided.', array('%url' => $redirect_url)), 'warning');
  54         }
  55       }
  56
  57       $redirect->setLanguage($this->getRequest()->get('language') ? $this->getRequest()->get('language') : Language::LANGCODE_NOT_SPECIFIED);
  58     }
  59   }
  60
  61   /**
  62    * {@inheritdoc}
  63    */
  64   public function form(array $form, FormStateInterface $form_state) {
  65     $form = parent::form($form, $form_state);
  66     /** @var \Drupal\redirect\Entity\Redirect $redirect */
  67     $redirect = $this->entity;
  68
  69     // Only add the configured languages and a single key for all languages.
  70     if (isset($form['language']['widget'][0]['value']))  {
  71       foreach (\Drupal::languageManager()->getLanguages(LanguageInterface::STATE_CONFIGURABLE) as $langcode => $language) {
  72         $form['language']['widget'][0]['value']['#options'][$langcode] = $language->getName();
  73       }
  74       $form['language']['widget'][0]['value']['#options'][LanguageInterface::LANGCODE_NOT_SPECIFIED] = t('- All languages -');
  75     }
  76
  77     $default_code = $redirect->getStatusCode() ? $redirect->getStatusCode() : \Drupal::config('redirect.settings')->get('default_status_code');
  78
  79     $form['status_code'] = array(
  80       '#type' => 'select',
  81       '#title' => t('Redirect status'),
  82       '#description' => t('You can find more information about HTTP redirect status codes at <a href="@status-codes">@status-codes</a>.', array('@status-codes' => 'http://en.wikipedia.org/wiki/List_of_HTTP_status_codes#3xx_Redirection')),
  83       '#default_value' => $default_code,
  84       '#options' => redirect_status_code_options(),
  85     );
  86
  87     return $form;
  88   }
  89
  90   /**
  91    * {@inheritdoc}
  92    */
  93   public function validateForm(array &$form, FormStateInterface $form_state) {
  94     parent::validateForm($form, $form_state);
  95     $source = $form_state->getValue(array('redirect_source', 0));
  96     $redirect = $form_state->getValue(array('redirect_redirect', 0));
  97
  98     if ($source['path'] == '<front>') {
  99       $form_state->setErrorByName('redirect_source', t('It is not allowed to create a redirect from the front page.'));
 100     }
 101     if (strpos($source['path'], '#') !== FALSE) {
 102       $form_state->setErrorByName('redirect_source', t('The anchor fragments are not allowed.'));
 103     }
 104     if (strpos($source['path'], '/') === 0) {
 105       $form_state->setErrorByName('redirect_source', t('The url to redirect from should not start with a forward slash (/).'));
 106     }
 107
 108     try {
 109       $source_url = Url::fromUri('internal:/' . $source['path']);
 110       $redirect_url = Url::fromUri($redirect['uri']);
 111
 112       // It is relevant to do this comparison only in case the source path has
 113       // a valid route. Otherwise the validation will fail on the redirect path
 114       // being an invalid route.
 115       if ($source_url->toString() == $redirect_url->toString()) {
 116         $form_state->setErrorByName('redirect_redirect', t('You are attempting to redirect the page to itself. This will result in an infinite loop.'));
 117       }
 118     }
 119     catch (\InvalidArgumentException $e) {
 120       // Do nothing, we want to only compare the resulting URLs.
 121     }
 122
 123     $parsed_url = UrlHelper::parse(trim($source['path']));
 124     $path = isset($parsed_url['path']) ? $parsed_url['path'] : NULL;
 125     $query = isset($parsed_url['query']) ? $parsed_url['query'] : NULL;
 126     $hash = Redirect::generateHash($path, $query, $form_state->getValue('language')[0]['value']);
 127
 128     // Search for duplicate.
 129     $redirects = \Drupal::entityManager()
 130       ->getStorage('redirect')
 131       ->loadByProperties(array('hash' => $hash));
 132
 133     if (!empty($redirects)) {
 134       $redirect = array_shift($redirects);
 135       if ($this->entity->isNew() || $redirect->id() != $this->entity->id()) {
 136         $form_state->setErrorByName('redirect_source', t('The source path %source is already being redirected. Do you want to <a href="@edit-page">edit the existing redirect</a>?',
 137           array(
 138             '%source' => $source['path'],
 139             '@edit-page' => $redirect->url('edit-form'))));
 140       }
 141     }
 142   }
 143
 144   /**
 145    * {@inheritdoc}
 146    */
 147   public function save(array $form, FormStateInterface $form_state) {
 148     $this->entity->save();
 149     drupal_set_message(t('The redirect has been saved.'));
 150     $form_state->setRedirect('redirect.list');
 151   }
 152 }