private function FilterImageResize::getImages in Image Resize Filter 8

Locate all images in a piece of text that need replacing.

An array of settings that will be used to identify which images need updating. Includes the following:

• image_locations: An array of acceptable image locations. of the following values: "remote". Remote image will be downloaded and saved locally. This procedure is intensive as the images need to be retrieved to have their dimensions checked.

Parameters

string $text: The text to be updated with the new img src tags.

Return value

string $images An list of images.

1 call to FilterImageResize::getImages()

FilterImageResize::process in src/Plugin/Filter/FilterImageResize.php

Performs the filter processing.

File

src/Plugin/Filter/FilterImageResize.php, line 129

Class

FilterImageResize

Provides a filter to resize images.

Namespace

Drupal\image_resize_filter\Plugin\Filter

Code

private function getImages($text) {
  $images = image_resize_filter_get_images($this->settings, $text);
  $search = [];
  $replace = [];
  foreach ($images as $image) {

    // Copy remote images locally.
    if ($image['location'] == 'remote') {
      $local_file_path = 'resize/remote/' . md5(file_get_contents($image['local_path'])) . '-' . $image['expected_size']['width'] . 'x' . $image['expected_size']['height'] . '.' . $image['extension'];

      // Once Drupal 8.7.x is unsupported remove this IF statement.
      if (floatval(\Drupal::VERSION) >= 8.800000000000001) {
        $image['destination'] = $this->systemFileConfig
          ->get('default_scheme') . '://' . $local_file_path;
      }
      else {
        $image['destination'] = file_default_scheme() . '://' . $local_file_path;
      }
    }
    elseif (!$image['resize']) {
      $image['destination'] = $image['local_path'];
    }
    else {
      $path_info = image_resize_filter_pathinfo($image['local_path']);

      // Once Drupal 8.7.x is unsupported remove this IF statement.
      if (floatval(\Drupal::VERSION) >= 8.800000000000001) {
        $local_file_dir = $this->streamWrapperManager
          ->getTarget($path_info['dirname']);
      }
      else {
        $local_file_dir = file_uri_target($path_info['dirname']);
      }
      $local_file_path = 'resize/' . ($local_file_dir ? $local_file_dir . '/' : '') . $path_info['filename'] . '-' . $image['expected_size']['width'] . 'x' . $image['expected_size']['height'] . '.' . $path_info['extension'];
      $image['destination'] = $path_info['scheme'] . '://' . $local_file_path;
    }
    if (!file_exists($image['destination'])) {

      // Basic flood prevention of resizing.
      $resize_threshold = 10;
      $flood = \Drupal::flood();
      if (!$flood
        ->isAllowed('image_resize_filter_resize', $resize_threshold, 120)) {
        $this->messenger
          ->addMessage(t('Image resize threshold of @count per minute reached. Some images have not been resized. Resave the content to resize remaining images.', [
          '@count' => floor($resize_threshold / 2),
        ]), 'error', FALSE);
        continue;
      }
      $flood
        ->register('image_resize_filter_resize', 120);

      // Create the resize directory.
      $directory = dirname($image['destination']);
      $this->fileSystem
        ->prepareDirectory($directory, FileSystemInterface::CREATE_DIRECTORY);

      // Move remote images into place if they are already the right size.
      if ($image['location'] == 'remote' && !$image['resize']) {
        $handle = fopen($image['destination'], 'w');
        fwrite($handle, file_get_contents($image['local_path']));
        fclose($handle);
      }
      elseif ($image['resize']) {
        $copy = $this->fileSystem
          ->copy($image['local_path'], $image['destination']);
        $res = $this->imageFactory
          ->get($copy);
        if ($res) {

          // Image loaded successfully; resize.
          $res
            ->resize($image['expected_size']['width'], $image['expected_size']['height']);
          $res
            ->save();
        }
        else {

          // Image failed to load - type doesn't match extension or invalid; keep original file
          $handle = fopen($image['destination'], 'w');
          fwrite($handle, file_get_contents($image['local_path']));
          fclose($handle);
        }
      }
      @chmod($image['destination'], 0664);
    }

    // Delete our temporary file if this is a remote image.
    image_resize_filter_delete_temp_file($image['location'], $image['local_path']);

    // Replace the existing image source with the resized image.
    // Set the image we're currently updating in the callback function.
    $search[] = $image['img_tag'];
    $replace[] = image_resize_filter_image_tag($image, $this->settings);
  }
  return str_replace($search, $replace, $text);
}