/**
* {@inheritdoc}
*/
public function access(AccountInterface $account = NULL)
{
if (!parent::access($account)) {
return FALSE;
}
if ($entity = $this->getEntityFromContext()) {
return $this->imageFactory->get($entity->getFileUri())->isValid();
}
return TRUE;
}
/**
* Tests using entity fields of the image field type.
*/
public function testImageItem()
{
// Create a test entity with the image field set.
$entity = EntityTest::create();
$entity->image_test->target_id = $this->image->id();
$entity->image_test->alt = $alt = $this->randomMachineName();
$entity->image_test->title = $title = $this->randomMachineName();
$entity->name->value = $this->randomMachineName();
$entity->save();
$entity = entity_load('entity_test', $entity->id());
$this->assertTrue($entity->image_test instanceof FieldItemListInterface, 'Field implements interface.');
$this->assertTrue($entity->image_test[0] instanceof FieldItemInterface, 'Field item implements interface.');
$this->assertEqual($entity->image_test->target_id, $this->image->id());
$this->assertEqual($entity->image_test->alt, $alt);
$this->assertEqual($entity->image_test->title, $title);
$image = $this->imageFactory->get('public://example.jpg');
$this->assertEqual($entity->image_test->width, $image->getWidth());
$this->assertEqual($entity->image_test->height, $image->getHeight());
$this->assertEqual($entity->image_test->entity->id(), $this->image->id());
$this->assertEqual($entity->image_test->entity->uuid(), $this->image->uuid());
// Make sure the computed entity reflects updates to the referenced file.
file_unmanaged_copy(\Drupal::root() . '/core/misc/druplicon.png', 'public://example-2.jpg');
$image2 = File::create(['uri' => 'public://example-2.jpg']);
$image2->save();
$entity->image_test->target_id = $image2->id();
$entity->image_test->alt = $new_alt = $this->randomMachineName();
// The width and height is only updated when width is not set.
$entity->image_test->width = NULL;
$entity->save();
$this->assertEqual($entity->image_test->entity->id(), $image2->id());
$this->assertEqual($entity->image_test->entity->getFileUri(), $image2->getFileUri());
$image = $this->imageFactory->get('public://example-2.jpg');
$this->assertEqual($entity->image_test->width, $image->getWidth());
$this->assertEqual($entity->image_test->height, $image->getHeight());
$this->assertEqual($entity->image_test->alt, $new_alt);
// Check that the image item can be set to the referenced file directly.
$entity->image_test = $this->image;
$this->assertEqual($entity->image_test->target_id, $this->image->id());
// Delete the image and try to save the entity again.
$this->image->delete();
$entity = EntityTest::create(array('mame' => $this->randomMachineName()));
$entity->save();
// Test image item properties.
$expected = array('target_id', 'entity', 'alt', 'title', 'width', 'height');
$properties = $entity->getFieldDefinition('image_test')->getFieldStorageDefinition()->getPropertyDefinitions();
$this->assertEqual(array_keys($properties), $expected);
// Test the generateSampleValue() method.
$entity = EntityTest::create();
$entity->image_test->generateSampleItems();
$this->entityValidateAndSave($entity);
$this->assertEqual($entity->image_test->entity->get('filemime')->value, 'image/jpeg');
}
/**
* Tests using entity fields of the image field type.
*/
public function testImageItem()
{
// Create a test entity with the image field set.
$entity = entity_create('entity_test');
$entity->image_test->target_id = $this->image->id();
$entity->image_test->alt = $alt = $this->randomMachineName();
$entity->image_test->title = $title = $this->randomMachineName();
$entity->name->value = $this->randomMachineName();
$entity->save();
$entity = entity_load('entity_test', $entity->id());
$this->assertTrue($entity->image_test instanceof FieldItemListInterface, 'Field implements interface.');
$this->assertTrue($entity->image_test[0] instanceof FieldItemInterface, 'Field item implements interface.');
$this->assertEqual($entity->image_test->target_id, $this->image->id());
$this->assertEqual($entity->image_test->alt, $alt);
$this->assertEqual($entity->image_test->title, $title);
$image = $this->imageFactory->get('public://example.jpg');
$this->assertEqual($entity->image_test->width, $image->getWidth());
$this->assertEqual($entity->image_test->height, $image->getHeight());
$this->assertEqual($entity->image_test->entity->id(), $this->image->id());
$this->assertEqual($entity->image_test->entity->uuid(), $this->image->uuid());
// Make sure the computed entity reflects updates to the referenced file.
file_unmanaged_copy(DRUPAL_ROOT . '/core/misc/feed.png', 'public://example-2.jpg');
$image2 = entity_create('file', array('uri' => 'public://example-2.jpg'));
$image2->save();
$entity->image_test->target_id = $image2->id();
$entity->image_test->alt = $new_alt = $this->randomMachineName();
// The width and height is only updated when width is not set.
$entity->image_test->width = NULL;
$entity->save();
$this->assertEqual($entity->image_test->entity->id(), $image2->id());
$this->assertEqual($entity->image_test->entity->getFileUri(), $image2->getFileUri());
$image = $this->imageFactory->get('public://example-2.jpg');
$this->assertEqual($entity->image_test->width, $image->getWidth());
$this->assertEqual($entity->image_test->height, $image->getHeight());
$this->assertEqual($entity->image_test->alt, $new_alt);
// Check that the image item can be set to the referenced file directly.
$entity->image_test = $this->image;
$this->assertEqual($entity->image_test->target_id, $this->image->id());
// Delete the image and try to save the entity again.
$this->image->delete();
$entity = entity_create('entity_test', array('mame' => $this->randomMachineName()));
$entity->save();
// Test the generateSampleValue() method.
$entity = entity_create('entity_test');
$entity->image_test->generateSampleItems();
$this->entityValidateAndSave($entity);
}
/**
* Tests usage of the image field formatters.
*/
function testImageFormatterTheme()
{
/** @var \Drupal\Core\Render\RendererInterface $renderer */
$renderer = $this->container->get('renderer');
// Create an image.
$files = $this->drupalGetTestFiles('image');
$file = reset($files);
$original_uri = file_unmanaged_copy($file->uri, 'public://', FILE_EXISTS_RENAME);
// Create a style.
$style = entity_create('image_style', array('name' => 'test', 'label' => 'Test'));
$style->save();
$url = $style->buildUrl($original_uri);
// Create a test entity with the image field set.
$entity = entity_create('entity_test');
$entity->image_test->target_id = $this->image->id();
$entity->image_test->alt = NULL;
$entity->image_test->uri = $original_uri;
$image = $this->imageFactory->get('public://example.jpg');
$entity->save();
// Create the base element that we'll use in the tests below.
$path = $this->randomMachineName();
$base_element = array('#theme' => 'image_formatter', '#image_style' => 'test', '#item' => $entity->image_test, '#url' => Url::fromUri('base:' . $path));
// Test using theme_image_formatter() with a NULL value for the alt option.
$element = $base_element;
$this->setRawContent($renderer->renderRoot($element));
$elements = $this->xpath('//a[@href=:path]/img[@class="image-style-test" and @src=:url and @width=:width and @height=:height]', array(':path' => base_path() . $path, ':url' => $url, ':width' => $image->getWidth(), ':height' => $image->getHeight()));
$this->assertEqual(count($elements), 1, 'theme_image_formatter() correctly renders with a NULL value for the alt option.');
// Test using theme_image_formatter() without an image title, alt text, or
// link options.
$element = $base_element;
$element['#item']->alt = '';
$this->setRawContent($renderer->renderRoot($element));
$elements = $this->xpath('//a[@href=:path]/img[@class="image-style-test" and @src=:url and @width=:width and @height=:height and @alt=""]', array(':path' => base_path() . $path, ':url' => $url, ':width' => $image->getWidth(), ':height' => $image->getHeight()));
$this->assertEqual(count($elements), 1, 'theme_image_formatter() correctly renders without title, alt, or path options.');
// Link the image to a fragment on the page, and not a full URL.
$fragment = $this->randomMachineName();
$element = $base_element;
$element['#url'] = Url::fromRoute('<none>', [], ['fragment' => $fragment]);
$this->setRawContent($renderer->renderRoot($element));
$elements = $this->xpath('//a[@href=:fragment]/img[@class="image-style-test" and @src=:url and @width=:width and @height=:height and @alt=""]', array(':fragment' => '#' . $fragment, ':url' => $url, ':width' => $image->getWidth(), ':height' => $image->getHeight()));
$this->assertEqual(count($elements), 1, 'theme_image_formatter() correctly renders a link fragment.');
}
/**
* {@inheritdoc}
*/
public function applyEffect(ImageInterface $image)
{
$watermark_image = $this->imageFactory->get($this->configuration['watermark_image']);
if (!$watermark_image->isValid()) {
return FALSE;
}
list($x, $y) = explode('-', $this->configuration['placement']);
$x_pos = image_filter_keyword($x, $image->getWidth(), $watermark_image->getWidth());
$y_pos = image_filter_keyword($y, $image->getHeight(), $watermark_image->getHeight());
return $image->apply('watermark', ['x_offset' => $x_pos + $this->configuration['x_offset'], 'y_offset' => $y_pos + $this->configuration['y_offset'], 'opacity' => $this->configuration['opacity'], 'watermark_image' => $watermark_image]);
}
/**
* Tests calling a missing image operation plugin.
*/
function testMissingOperation()
{
// Test that the image factory is set to use the GD toolkit.
$this->assertEqual($this->imageFactory->getToolkitId(), 'gd', 'The image factory is set to use the \'gd\' image toolkit.');
// An image file that will be tested.
$file = 'image-test.png';
// Load up a fresh image.
$image = $this->imageFactory->get(drupal_get_path('module', 'simpletest') . '/files/' . $file);
if (!$image->isValid()) {
$this->fail(String::format('Could not load image %file.', array('%file' => $file)));
}
// Try perform a missing toolkit operation.
$this->assertFalse($image->apply('missing_op', array()), 'Calling a missing image toolkit operation plugin fails.');
}
/**
* 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.
*
* @param string $text
* The text to be updated with the new img src tags.
*
* @return array $images
* An list of images.
*/
private function getImages($text)
{
$dom = Html::load($text);
$xpath = new \DOMXPath($dom);
/** @var \DOMNode $node */
foreach ($xpath->query('//img') as $node) {
$file = $this->entityRepository->loadEntityByUuid('file', $node->getAttribute('data-entity-uuid'));
// If the image hasn't an uuid then don't try to resize it.
if (is_null($file)) {
continue;
}
$image = $this->imageFactory->get($node->getAttribute('src'));
// Checking if the image needs to be resized.
if ($image->getWidth() == $node->getAttribute('width') && $image->getHeight() == $node->getAttribute('height')) {
continue;
}
$target = file_uri_target($file->getFileUri());
$dirname = dirname($target) != '.' ? dirname($target) . '/' : '';
$info = pathinfo($file->getFileUri());
$resize_file_path = 'public://resize/' . $dirname . $info['filename'] . '-' . $node->getAttribute('width') . 'x' . $node->getAttribute('height') . '.' . $info['extension'];
// Checking if the image was already resized:
if (file_exists($resize_file_path)) {
$node->setAttribute('src', file_url_transform_relative(file_create_url($resize_file_path)));
continue;
}
// Delete this when https://www.drupal.org/node/2211657#comment-11510213
// be fixed.
$dirname = $this->fileSystem->dirname($resize_file_path);
if (!file_exists($dirname)) {
file_prepare_directory($dirname, FILE_CREATE_DIRECTORY);
}
// Checks if the resize filter exists if is not then create it.
$copy = file_unmanaged_copy($file->getFileUri(), $resize_file_path, FILE_EXISTS_REPLACE);
$copy_image = $this->imageFactory->get($copy);
$copy_image->resize($node->getAttribute('width'), $node->getAttribute('height'));
$copy_image->save();
$node->setAttribute('src', file_url_transform_relative(file_create_url($copy)));
}
return Html::serialize($dom);
}
/**
* Sets up an image with the custom toolkit.
*
* @return \Drupal\Core\Image\ImageInterface
* The image object.
*/
protected function getImage()
{
$image = $this->imageFactory->get($this->file, 'test');
$this->assertTrue($image->isValid(), 'Image file was parsed.');
return $image;
}
/**
* Generates a derivative, given a style and image path.
*
* After generating an image, transfer it to the requesting agent.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The request object.
* @param string $scheme
* The file scheme, defaults to 'private'.
* @param \Drupal\image\ImageStyleInterface $image_style
* The image style to deliver.
*
* @return \Symfony\Component\HttpFoundation\BinaryFileResponse|\Symfony\Component\HttpFoundation\Response
* The transferred file as response or some error response.
*
* @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
* Thrown when the user does not have access to the file.
* @throws \Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException
* Thrown when the file is still being generated.
*/
public function deliver(Request $request, $scheme, ImageStyleInterface $image_style)
{
$target = $request->query->get('file');
$image_uri = $scheme . '://' . $target;
// Check that the style is defined, the scheme is valid, and the image
// derivative token is valid. Sites which require image derivatives to be
// generated without a token can set the
// 'image.settings:allow_insecure_derivatives' configuration to TRUE to
// bypass the latter check, but this will increase the site's vulnerability
// to denial-of-service attacks. To prevent this variable from leaving the
// site vulnerable to the most serious attacks, a token is always required
// when a derivative of a style is requested.
// The $target variable for a derivative of a style has
// styles/<style_name>/... as structure, so we check if the $target variable
// starts with styles/.
$valid = !empty($image_style) && file_stream_wrapper_valid_scheme($scheme);
if (!$this->config('image.settings')->get('allow_insecure_derivatives') || strpos(ltrim($target, '\\/'), 'styles/') === 0) {
$valid &= $request->query->get(IMAGE_DERIVATIVE_TOKEN) === $image_style->getPathToken($image_uri);
}
if (!$valid) {
throw new AccessDeniedHttpException();
}
$derivative_uri = $image_style->buildUri($image_uri);
$headers = array();
// If using the private scheme, let other modules provide headers and
// control access to the file.
if ($scheme == 'private') {
if (file_exists($derivative_uri)) {
return parent::download($request, $scheme);
} else {
$headers = $this->moduleHandler()->invokeAll('file_download', array($image_uri));
if (in_array(-1, $headers) || empty($headers)) {
throw new AccessDeniedHttpException();
}
}
}
// Don't try to generate file if source is missing.
if (!file_exists($image_uri)) {
// If the image style converted the extension, it has been added to the
// original file, resulting in filenames like image.png.jpeg. So to find
// the actual source image, we remove the extension and check if that
// image exists.
$path_info = pathinfo($image_uri);
$converted_image_uri = $path_info['dirname'] . DIRECTORY_SEPARATOR . $path_info['filename'];
if (!file_exists($converted_image_uri)) {
$this->logger->notice('Source image at %source_image_path not found while trying to generate derivative image at %derivative_path.', array('%source_image_path' => $image_uri, '%derivative_path' => $derivative_uri));
return new Response($this->t('Error generating image, missing source file.'), 404);
} else {
// The converted file does exist, use it as the source.
$image_uri = $converted_image_uri;
}
}
// Don't start generating the image if the derivative already exists or if
// generation is in progress in another thread.
$lock_name = 'image_style_deliver:' . $image_style->id() . ':' . Crypt::hashBase64($image_uri);
if (!file_exists($derivative_uri)) {
$lock_acquired = $this->lock->acquire($lock_name);
if (!$lock_acquired) {
// Tell client to retry again in 3 seconds. Currently no browsers are
// known to support Retry-After.
throw new ServiceUnavailableHttpException(3, $this->t('Image generation in progress. Try again shortly.'));
}
}
// Try to generate the image, unless another thread just did it while we
// were acquiring the lock.
$success = file_exists($derivative_uri) || $image_style->createDerivative($image_uri, $derivative_uri);
if (!empty($lock_acquired)) {
$this->lock->release($lock_name);
}
if ($success) {
$image = $this->imageFactory->get($derivative_uri);
$uri = $image->getSource();
$headers += array('Content-Type' => $image->getMimeType(), 'Content-Length' => $image->getFileSize());
// \Drupal\Core\EventSubscriber\FinishResponseSubscriber::onRespond()
// sets response as not cacheable if the Cache-Control header is not
// already modified. We pass in FALSE for non-private schemes for the
// $public parameter to make sure we don't change the headers.
return new BinaryFileResponse($uri, 200, $headers, $scheme !== 'private');
} else {
$this->logger->notice('Unable to generate the derived image located at %path.', array('%path' => $derivative_uri));
return new Response($this->t('Error generating image.'), 500);
}
}
/**
* Generates a derivative, given a style and image path.
*
* After generating an image, transfer it to the requesting agent.
*
* @param \Symfony\Component\HttpFoundation\Request $request
* The request object.
* @param string $scheme
* The file scheme, defaults to 'private'.
* @param \Drupal\image\ImageStyleInterface $image_style
* The image style to deliver.
*
* @throws \Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException
* Thrown when the user does not have access to the file.
* @throws \Symfony\Component\HttpKernel\Exception\ServiceUnavailableHttpException
* Thrown when the file is still being generated.
*
* @return \Symfony\Component\HttpFoundation\BinaryFileResponse|\Symfony\Component\HttpFoundation\Response
* The transferred file as response or some error response.
*/
public function deliver(Request $request, $scheme, ImageStyleInterface $image_style)
{
$target = $request->query->get('file');
$image_uri = $scheme . '://' . $target;
// Check that the style is defined, the scheme is valid, and the image
// derivative token is valid. Sites which require image derivatives to be
// generated without a token can set the
// 'image.settings:allow_insecure_derivatives' configuration to TRUE to
// bypass the latter check, but this will increase the site's vulnerability
// to denial-of-service attacks.
$valid = !empty($image_style) && file_stream_wrapper_valid_scheme($scheme);
if (!$this->config('image.settings')->get('allow_insecure_derivatives')) {
$valid &= $request->query->get(IMAGE_DERIVATIVE_TOKEN) === $image_style->getPathToken($image_uri);
}
if (!$valid) {
throw new AccessDeniedHttpException();
}
$derivative_uri = $image_style->buildUri($image_uri);
$headers = array();
// If using the private scheme, let other modules provide headers and
// control access to the file.
if ($scheme == 'private') {
if (file_exists($derivative_uri)) {
return parent::download($request, $scheme);
} else {
$headers = $this->moduleHandler()->invokeAll('file_download', array($image_uri));
if (in_array(-1, $headers) || empty($headers)) {
throw new AccessDeniedHttpException();
}
}
}
// Don't try to generate file if source is missing.
if (!file_exists($image_uri)) {
watchdog('image', 'Source image at %source_image_path not found while trying to generate derivative image at %derivative_path.', array('%source_image_path' => $image_uri, '%derivative_path' => $derivative_uri));
return new Response($this->t('Error generating image, missing source file.'), 404);
}
// Don't start generating the image if the derivative already exists or if
// generation is in progress in another thread.
$lock_name = 'image_style_deliver:' . $image_style->id() . ':' . Crypt::hashBase64($image_uri);
if (!file_exists($derivative_uri)) {
$lock_acquired = $this->lock->acquire($lock_name);
if (!$lock_acquired) {
// Tell client to retry again in 3 seconds. Currently no browsers are
// known to support Retry-After.
throw new ServiceUnavailableHttpException(3, $this->t('Image generation in progress. Try again shortly.'));
}
}
// Try to generate the image, unless another thread just did it while we
// were acquiring the lock.
$success = file_exists($derivative_uri) || $image_style->createDerivative($image_uri, $derivative_uri);
if (!empty($lock_acquired)) {
$this->lock->release($lock_name);
}
if ($success) {
drupal_page_is_cacheable(FALSE);
$image = $this->imageFactory->get($derivative_uri);
$uri = $image->getSource();
$headers += array('Content-Type' => $image->getMimeType(), 'Content-Length' => $image->getFileSize());
return new BinaryFileResponse($uri, 200, $headers);
} else {
watchdog('image', 'Unable to generate the derived image located at %path.', array('%path' => $derivative_uri));
return new Response($this->t('Error generating image.'), 500);
}
}
