' . t('About') . '';
$output .= '' . t('The File module allows you to create fields that contain files. See the Field module help and the Field UI help pages for general information on fields and how to create and manage them. For more information, see the online documentation for the File module.', [':field' => Url::fromRoute('help.page', ['name' => 'field'])->toString(), ':field_ui' => (\Drupal::moduleHandler()->moduleExists('field_ui')) ? Url::fromRoute('help.page', ['name' => 'field_ui'])->toString() : '#', ':file_documentation' => 'https://www.drupal.org/documentation/modules/file']) . '
';
$output .= '' . t('Uses') . '
';
$output .= '';
$output .= '- ' . t('Managing and displaying file fields') . '
';
$output .= '- ' . t('The settings and the display of the file field can be configured separately. See the Field UI help for more information on how to manage fields and their display.', [':field_ui' => (\Drupal::moduleHandler()->moduleExists('field_ui')) ? Url::fromRoute('help.page', ['name' => 'field_ui'])->toString() : '#']) . '
';
$output .= '- ' . t('Allowing file extensions') . '
';
$output .= '- ' . t('In the field settings, you can define the allowed file extensions (for example pdf docx psd) for the files that will be uploaded with the file field.') . '
';
$output .= '- ' . t('Storing files') . '
';
$output .= '- ' . t('Uploaded files can either be stored as public or private, depending on the File system settings. For more information, see the System module help page.', [':file-system' => Url::fromRoute('system.file_system_settings')->toString(), ':system-help' => Url::fromRoute('help.page', ['name' => 'system'])->toString()]) . '
';
$output .= '- ' . t('Restricting the maximum file size') . '
';
$output .= '- ' . t('The maximum file size that users can upload is limited by PHP settings of the server, but you can restrict by entering the desired value as the Maximum upload size setting. The maximum file size is automatically displayed to users in the help text of the file field.') . '
';
$output .= '- ' . t('Displaying files and descriptions') . '
- ';
$output .= '
- ' . t('In the field settings, you can allow users to toggle whether individual files are displayed. In the display settings, you can then choose one of the following formats:
- Generic file displays links to the files and adds icons that symbolize the file extensions. If descriptions are enabled and have been submitted, then the description is displayed instead of the file name.
- URL to file displays the full path to the file as plain text.
- Table of files lists links to the files and the file sizes in a table.
- RSS enclosure only displays the first file, and only in a RSS feed, formatted according to the RSS 2.0 syntax for enclosures.
A file can still be linked to directly by its URI even if it is not displayed.') . ' ';
$output .= '
';
return $output;
}
}
/**
* Implements hook_field_widget_info_alter().
*/
function file_field_widget_info_alter(array &$info) {
// Allows using the 'uri' widget for the 'file_uri' field type, which uses it
// as the default widget.
// @see \Drupal\file\Plugin\Field\FieldType\FileUriItem
$info['uri']['field_types'][] = 'file_uri';
}
/**
* Checks that a file meets the criteria specified by the validators.
*
* After executing the validator callbacks specified hook_file_validate() will
* also be called to allow other modules to report errors about the file.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
* @param array $validators
* (optional) An associative array of callback functions used to validate
* the file. The keys are function names and the values arrays of callback
* parameters which will be passed in after the file entity. The functions
* should return an array of error messages; an empty array indicates that
* the file passed validation. The callback functions will be called in the
* order specified in the array, then the hook hook_file_validate()
* will be invoked so other modules can validate the new file.
*
* @return array
* An array containing validation error messages.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
*/
function file_validate(FileInterface $file, $validators = []) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$violations = \Drupal::service('file.validator')->validate($file, $validators);
$errors = [];
foreach ($violations as $violation) {
$errors[] = $violation->getMessage();
}
return $errors;
}
/**
* Checks for files with names longer than can be stored in the database.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
*
* @return array
* An empty array if the file name length is smaller than the limit or an
* array containing an error message if it's not or is empty.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
*/
function file_validate_name_length(FileInterface $file) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$errors = [];
if (!$file->getFilename()) {
$errors[] = t("The file's name is empty. Enter a name for the file.");
}
if (strlen($file->getFilename()) > 240) {
$errors[] = t("The file's name exceeds the 240 characters limit. Rename the file and try again.");
}
return $errors;
}
/**
* Checks that the filename ends with an allowed extension.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
* @param string $extensions
* A string with a space separated list of allowed extensions.
*
* @return array
* An empty array if the file extension is allowed or an array containing an
* error message if it's not.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
* @see hook_file_validate()
*/
function file_validate_extensions(FileInterface $file, $extensions) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$errors = [];
$regex = '/\.(' . preg_replace('/ +/', '|', preg_quote($extensions)) . ')$/i';
// Filename may differ from the basename, for instance in case files migrated
// from D7 file entities. Because of that new files are saved temporarily with
// a generated file name, without the original extension, we will use the
// generated filename property for extension validation only in case of
// temporary files; and use the file system file name in case of permanent
// files.
$subject = $file->isTemporary() ? $file->getFilename() : $file->getFileUri();
if (!preg_match($regex, $subject)) {
$errors[] = t('Only files with the following extensions are allowed: %files-allowed.', ['%files-allowed' => $extensions]);
}
return $errors;
}
/**
* Checks that the file's size is below certain limits.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
* @param int $file_limit
* (optional) The maximum file size in bytes. Zero (the default) indicates
* that no limit should be enforced.
* @param int $user_limit
* (optional) The maximum number of bytes the user is allowed. Zero (the
* default) indicates that no limit should be enforced.
*
* @return array
* An empty array if the file size is below limits or an array containing an
* error message if it's not.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
* @see hook_file_validate()
*/
function file_validate_size(FileInterface $file, $file_limit = 0, $user_limit = 0) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$user = \Drupal::currentUser();
$errors = [];
if ($file_limit && $file->getSize() > $file_limit) {
$errors[] = t('The file is %filesize exceeding the maximum file size of %maxsize.', [
'%filesize' => ByteSizeMarkup::create($file->getSize()),
'%maxsize' => ByteSizeMarkup::create($file_limit),
]);
}
// Save a query by only calling spaceUsed() when a limit is provided.
if ($user_limit && (\Drupal::entityTypeManager()->getStorage('file')->spaceUsed($user->id()) + $file->getSize()) > $user_limit) {
$errors[] = t('The file is %filesize which would exceed your disk quota of %quota.', [
'%filesize' => ByteSizeMarkup::create($file->getSize()),
'%quota' => ByteSizeMarkup::create($user_limit),
]);
}
return $errors;
}
/**
* Checks that the file is recognized as a valid image.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
*
* @return array
* An empty array if the file is a valid image or an array containing an error
* message if it's not.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
* @see hook_file_validate()
*/
function file_validate_is_image(FileInterface $file) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$errors = [];
$image_factory = \Drupal::service('image.factory');
$image = $image_factory->get($file->getFileUri());
if (!$image->isValid()) {
$supported_extensions = $image_factory->getSupportedExtensions();
$errors[] = t('The image file is invalid or the image type is not allowed. Allowed types: %types', ['%types' => implode(', ', $supported_extensions)]);
}
return $errors;
}
/**
* Verifies that image dimensions are within the specified maximum and minimum.
*
* Non-image files will be ignored. If an image toolkit is available the image
* will be scaled to fit within the desired maximum dimensions.
*
* @param \Drupal\file\FileInterface $file
* A file entity. This function may resize the file affecting its size.
* @param string|int $maximum_dimensions
* (optional) A string in the form WIDTHxHEIGHT; for example, '640x480' or
* '85x85'. If an image toolkit is installed, the image will be resized down
* to these dimensions. A value of zero (the default) indicates no restriction
* on size, so no resizing will be attempted.
* @param string|int $minimum_dimensions
* (optional) A string in the form WIDTHxHEIGHT. This will check that the
* image meets a minimum size. A value of zero (the default) indicates that
* there is no restriction on size.
*
* @return array
* An empty array if the file meets the specified dimensions, was resized
* successfully to meet those requirements or is not an image. If the image
* does not meet the requirements or an attempt to resize it fails, an array
* containing the error message will be returned.
*
* @deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the
* 'file.validator' service instead.
*
* @see https://www.drupal.org/node/3363700
* @see hook_file_validate()
*/
function file_validate_image_resolution(FileInterface $file, $maximum_dimensions = 0, $minimum_dimensions = 0) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'file.validator\' service instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$errors = [];
// Check first that the file is an image.
$image_factory = \Drupal::service('image.factory');
$image = $image_factory->get($file->getFileUri());
if ($image->isValid()) {
$scaling = FALSE;
if ($maximum_dimensions) {
// Check that it is smaller than the given dimensions.
[$width, $height] = explode('x', $maximum_dimensions);
if ($image->getWidth() > $width || $image->getHeight() > $height) {
// Try to resize the image to fit the dimensions.
if ($image->scale($width, $height)) {
$scaling = TRUE;
$image->save();
// Update the file size now that the image has been resized.
$file->setSize($image->getFileSize());
if (!empty($width) && !empty($height)) {
$message = t('The image was resized to fit within the maximum allowed dimensions of %dimensions pixels. The new dimensions of the resized image are %new_widthx%new_height pixels.',
[
'%dimensions' => $maximum_dimensions,
'%new_width' => $image->getWidth(),
'%new_height' => $image->getHeight(),
]);
}
elseif (empty($width)) {
$message = t('The image was resized to fit within the maximum allowed height of %height pixels. The new dimensions of the resized image are %new_widthx%new_height pixels.',
[
'%height' => $height,
'%new_width' => $image->getWidth(),
'%new_height' => $image->getHeight(),
]);
}
elseif (empty($height)) {
$message = t('The image was resized to fit within the maximum allowed width of %width pixels. The new dimensions of the resized image are %new_widthx%new_height pixels.',
[
'%width' => $width,
'%new_width' => $image->getWidth(),
'%new_height' => $image->getHeight(),
]);
}
\Drupal::messenger()->addStatus($message);
}
else {
$errors[] = t('The image exceeds the maximum allowed dimensions and an attempt to resize it failed.');
}
}
}
if ($minimum_dimensions) {
// Check that it is larger than the given dimensions.
[$width, $height] = explode('x', $minimum_dimensions);
if ($image->getWidth() < $width || $image->getHeight() < $height) {
if ($scaling) {
$errors[] = t('The resized image is too small. The minimum dimensions are %dimensions pixels and after resizing, the image size will be %widthx%height pixels.',
[
'%dimensions' => $minimum_dimensions,
'%width' => $image->getWidth(),
'%height' => $image->getHeight(),
]);
}
else {
$errors[] = t('The image is too small. The minimum dimensions are %dimensions pixels and the image size is %widthx%height pixels.',
[
'%dimensions' => $minimum_dimensions,
'%width' => $image->getWidth(),
'%height' => $image->getHeight(),
]);
}
}
}
}
return $errors;
}
/**
* Examines a file entity and returns appropriate content headers for download.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
*
* @return array
* An associative array of headers, as expected by
* \Symfony\Component\HttpFoundation\StreamedResponse.
*/
function file_get_content_headers(FileInterface $file) {
return [
'Content-Type' => $file->getMimeType(),
'Content-Length' => $file->getSize(),
'Cache-Control' => 'private',
];
}
/**
* Implements hook_theme().
*/
function file_theme() {
return [
// From file.module.
'file_link' => [
'variables' => ['file' => NULL, 'description' => NULL, 'attributes' => []],
],
'file_managed_file' => [
'render element' => 'element',
],
'file_audio' => [
'variables' => ['files' => [], 'attributes' => NULL],
],
'file_video' => [
'variables' => ['files' => [], 'attributes' => NULL],
],
'file_widget_multiple' => [
'render element' => 'element',
],
'file_upload_help' => [
'variables' => ['description' => NULL, 'upload_validators' => NULL, 'cardinality' => NULL],
],
];
}
/**
* Implements hook_file_download().
*/
function file_file_download($uri) {
// Get the file record based on the URI. If not in the database just return.
/** @var \Drupal\file\FileRepositoryInterface $file_repository */
$file_repository = \Drupal::service('file.repository');
$file = $file_repository->loadByUri($uri);
if (!$file) {
return;
}
// Find out if a temporary file is still used in the system.
if ($file->isTemporary()) {
$usage = \Drupal::service('file.usage')->listUsage($file);
if (empty($usage) && $file->getOwnerId() != \Drupal::currentUser()->id()) {
// Deny access to temporary files without usage that are not owned by the
// same user. This prevents the security issue that a private file that
// was protected by field permissions becomes available after its usage
// was removed and before it is actually deleted from the file system.
// Modules that depend on this behavior should make the file permanent
// instead.
return -1;
}
}
// Find out which (if any) fields of this type contain the file.
$references = file_get_file_references($file, NULL, EntityStorageInterface::FIELD_LOAD_CURRENT, NULL);
// Stop processing if there are no references in order to avoid returning
// headers for files controlled by other modules. Make an exception for
// temporary files where the host entity has not yet been saved (for example,
// an image preview on a node/add form) in which case, allow download by the
// file's owner.
if (empty($references) && ($file->isPermanent() || $file->getOwnerId() != \Drupal::currentUser()->id())) {
return;
}
if (!$file->access('download')) {
return -1;
}
// Access is granted.
$headers = file_get_content_headers($file);
return $headers;
}
/**
* Implements hook_cron().
*/
function file_cron() {
$age = \Drupal::config('system.file')->get('temporary_maximum_age');
$file_storage = \Drupal::entityTypeManager()->getStorage('file');
/** @var \Drupal\Core\StreamWrapper\StreamWrapperManagerInterface $stream_wrapper_manager */
$stream_wrapper_manager = \Drupal::service('stream_wrapper_manager');
// Only delete temporary files if older than $age. Note that automatic cleanup
// is disabled if $age set to 0.
if ($age) {
$fids = Drupal::entityQuery('file')
->accessCheck(FALSE)
->condition('status', FileInterface::STATUS_PERMANENT, '<>')
->condition('changed', \Drupal::time()->getRequestTime() - $age, '<')
->range(0, 100)
->execute();
$files = $file_storage->loadMultiple($fids);
foreach ($files as $file) {
$references = \Drupal::service('file.usage')->listUsage($file);
if (empty($references)) {
if (!file_exists($file->getFileUri())) {
if (!$stream_wrapper_manager->isValidUri($file->getFileUri())) {
\Drupal::logger('file system')->warning('Temporary file "%path" that was deleted during garbage collection did not exist on the filesystem. This could be caused by a missing stream wrapper.', ['%path' => $file->getFileUri()]);
}
else {
\Drupal::logger('file system')->warning('Temporary file "%path" that was deleted during garbage collection did not exist on the filesystem.', ['%path' => $file->getFileUri()]);
}
}
// Delete the file entity. If the file does not exist, this will
// generate a second notice in the watchdog.
$file->delete();
}
else {
\Drupal::logger('file system')->info('Did not delete temporary file "%path" during garbage collection because it is in use by the following modules: %modules.', ['%path' => $file->getFileUri(), '%modules' => implode(', ', array_keys($references))]);
}
}
}
}
/**
* Saves form file uploads.
*
* The files will be added to the {file_managed} table as temporary files.
* Temporary files are periodically cleaned. Use the 'file.usage' service to
* register the usage of the file which will automatically mark it as permanent.
*
* @param array $element
* The FAPI element whose values are being saved.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
* @param null|int $delta
* (optional) The delta of the file to return the file entity.
* Defaults to NULL.
* @param \Drupal\Core\File\FileExists|int $fileExists
* (optional) The replace behavior when the destination file already exists.
*
* @return array|\Drupal\file\FileInterface|null|false
* An array of file entities or a single file entity if $delta != NULL. Each
* array element contains the file entity if the upload succeeded or FALSE if
* there was an error. Function returns NULL if no file was uploaded.
*
* @throws \ValueError
* Thrown if $fileExists is a legacy int and not a valid value.
*
* @internal
* This function is internal, and may be removed in a minor version release.
* It wraps file_save_upload() to allow correct error handling in forms.
* Contrib and custom code should not call this function, they should use the
* managed file upload widgets in core.
*
* @see https://www.drupal.org/project/drupal/issues/3069020
* @see https://www.drupal.org/project/drupal/issues/2482783
*/
function _file_save_upload_from_form(array $element, FormStateInterface $form_state, $delta = NULL, FileExists|int $fileExists = FileExists::Rename) {
if (!$fileExists instanceof FileExists) {
// @phpstan-ignore-next-line
$fileExists = FileExists::fromLegacyInt($fileExists, __METHOD__);
}
// Get all errors set before calling this method. This will also clear them
// from the messenger service.
$errors_before = \Drupal::messenger()->deleteByType(MessengerInterface::TYPE_ERROR);
$upload_location = $element['#upload_location'] ?? FALSE;
$upload_name = implode('_', $element['#parents']);
$upload_validators = $element['#upload_validators'] ?? [];
$result = file_save_upload($upload_name, $upload_validators, $upload_location, $delta, $fileExists);
// Get new errors that are generated while trying to save the upload. This
// will also clear them from the messenger service.
$errors_new = \Drupal::messenger()->deleteByType(MessengerInterface::TYPE_ERROR);
if (!empty($errors_new)) {
if (count($errors_new) > 1) {
// Render multiple errors into a single message.
// This is needed because only one error per element is supported.
$render_array = [
'error' => [
'#markup' => t('One or more files could not be uploaded.'),
],
'item_list' => [
'#theme' => 'item_list',
'#items' => $errors_new,
],
];
$error_message = \Drupal::service('renderer')->renderInIsolation($render_array);
}
else {
$error_message = reset($errors_new);
}
$form_state->setError($element, $error_message);
}
// Ensure that errors set prior to calling this method are still shown to the
// user.
if (!empty($errors_before)) {
foreach ($errors_before as $error) {
\Drupal::messenger()->addError($error);
}
}
return $result;
}
/**
* Saves file uploads to a new location.
*
* The files will be added to the {file_managed} table as temporary files.
* Temporary files are periodically cleaned. Use the 'file.usage' service to
* register the usage of the file which will automatically mark it as permanent.
*
* Note that this function does not support correct form error handling. The
* file upload widgets in core do support this. It is advised to use these in
* any custom form, instead of calling this function.
*
* @param string $form_field_name
* A string that is the associative array key of the upload form element in
* the form array.
* @param array $validators
* (optional) An associative array of callback functions used to validate the
* file. See file_validate() for a full discussion of the array format.
* If the array is empty, it will be set up to call file_validate_extensions()
* with a safe list of extensions, as follows: "jpg jpeg gif png txt doc
* xls pdf ppt pps odt ods odp". To allow all extensions, you must explicitly
* set this array to ['file_validate_extensions' => '']. (Beware: this is not
* safe and should only be allowed for trusted users, if at all.)
* @param string|false $destination
* (optional) A string containing the URI that the file should be copied to.
* This must be a stream wrapper URI. If this value is omitted or set to
* FALSE, Drupal's temporary files scheme will be used ("temporary://").
* @param null|int $delta
* (optional) The delta of the file to return the file entity.
* Defaults to NULL.
* @param \Drupal\Core\File\FileExists|int $fileExists
* (optional) The replace behavior when the destination file already exists.
*
* @return array|\Drupal\file\FileInterface|null|false
* An array of file entities or a single file entity if $delta != NULL. Each
* array element contains the file entity if the upload succeeded or FALSE if
* there was an error. Function returns NULL if no file was uploaded.
*
* @throws \ValueError
* Thrown if $fileExists is a legacy int and not a valid value.
*
* @see _file_save_upload_from_form()
*/
function file_save_upload($form_field_name, $validators = [], $destination = FALSE, $delta = NULL, FileExists|int $fileExists = FileExists::Rename) {
if (!$fileExists instanceof FileExists) {
// @phpstan-ignore-next-line
$fileExists = FileExists::fromLegacyInt($fileExists, __METHOD__);
}
static $upload_cache;
$all_files = \Drupal::request()->files->get('files', []);
// Make sure there's an upload to process.
if (empty($all_files[$form_field_name])) {
return NULL;
}
$file_upload = $all_files[$form_field_name];
// Return cached objects without processing since the file will have
// already been processed and the paths in $_FILES will be invalid.
if (isset($upload_cache[$form_field_name])) {
if (isset($delta)) {
return $upload_cache[$form_field_name][$delta];
}
return $upload_cache[$form_field_name];
}
// Prepare uploaded files info. Representation is slightly different
// for multiple uploads and we fix that here.
$uploaded_files = $file_upload;
if (!is_array($file_upload)) {
$uploaded_files = [$file_upload];
}
if ($destination === FALSE || $destination === NULL) {
$destination = 'temporary://';
}
/** @var \Drupal\file\Upload\FileUploadHandler $file_upload_handler */
$file_upload_handler = \Drupal::service('file.upload_handler');
/** @var \Drupal\Core\Render\RendererInterface $renderer */
$renderer = \Drupal::service('renderer');
$files = [];
/** @var \Symfony\Component\HttpFoundation\File\UploadedFile $uploaded_file */
foreach ($uploaded_files as $i => $uploaded_file) {
try {
$form_uploaded_file = new FormUploadedFile($uploaded_file);
$result = $file_upload_handler->handleFileUpload($form_uploaded_file, $validators, $destination, $fileExists, FALSE);
if ($result->hasViolations()) {
$errors = [];
foreach ($result->getViolations() as $violation) {
$errors[] = $violation->getMessage();
}
$message = [
'error' => [
'#markup' => t('The specified file %name could not be uploaded.', ['%name' => $uploaded_file->getClientOriginalName()]),
],
'item_list' => [
'#theme' => 'item_list',
'#items' => $errors,
],
];
// @todo Add support for render arrays in
// \Drupal\Core\Messenger\MessengerInterface::addMessage()?
// @see https://www.drupal.org/node/2505497.
\Drupal::messenger()->addError($renderer->renderInIsolation($message));
$files[$i] = FALSE;
continue;
}
$file = $result->getFile();
// If the filename has been modified, let the user know.
if ($result->isRenamed()) {
if ($result->isSecurityRename()) {
$message = t('For security reasons, your upload has been renamed to %filename.', ['%filename' => $file->getFilename()]);
}
else {
$message = t('Your upload has been renamed to %filename.', ['%filename' => $file->getFilename()]);
}
\Drupal::messenger()->addStatus($message);
}
$files[$i] = $file;
}
catch (FileExistsException $e) {
\Drupal::messenger()->addError(t('Destination file "%file" exists', ['%file' => $destination . $uploaded_file->getFilename()]));
$files[$i] = FALSE;
}
catch (InvalidStreamWrapperException $e) {
\Drupal::messenger()->addError(t('The file could not be uploaded because the destination "%destination" is invalid.', ['%destination' => $destination]));
$files[$i] = FALSE;
}
catch (FileWriteException $e) {
\Drupal::messenger()->addError(t('File upload error. Could not move uploaded file.'));
\Drupal::logger('file')->notice('Upload error. Could not move uploaded file %file to destination %destination.', ['%file' => $uploaded_file->getClientOriginalName(), '%destination' => $destination . '/' . $uploaded_file->getClientOriginalName()]);
$files[$i] = FALSE;
}
catch (FileException $e) {
\Drupal::messenger()->addError(t('The file %filename could not be uploaded because the name is invalid.', ['%filename' => $uploaded_file->getClientOriginalName()]));
$files[$i] = FALSE;
}
catch (LockAcquiringException $e) {
\Drupal::messenger()->addError(t('File already locked for writing.'));
$files[$i] = FALSE;
}
}
// Add files to the cache.
$upload_cache[$form_field_name] = $files;
return isset($delta) ? $files[$delta] : $files;
}
/**
* Determines the preferred upload progress implementation.
*
* @return string|false
* A string indicating which upload progress system is available. Either "apc"
* or "uploadprogress". If neither are available, returns FALSE.
*
* @deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use
* extension_loaded('uploadprogress') instead.
*
* @see https://www.drupal.org/node/3397577
*/
function file_progress_implementation() {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use extension_loaded(\'uploadprogress\') instead. See https://www.drupal.org/node/3397577', E_USER_DEPRECATED);
static $implementation;
if (!isset($implementation)) {
$implementation = FALSE;
// We prefer the PECL extension uploadprogress because it supports multiple
// simultaneous uploads. APCu only supports one at a time.
if (extension_loaded('uploadprogress')) {
$implementation = 'uploadprogress';
}
}
return $implementation;
}
/**
* Implements hook_ENTITY_TYPE_predelete() for file entities.
*/
function file_file_predelete(File $file) {
// @todo Remove references to a file that is in-use.
}
/**
* Implements hook_tokens().
*/
function file_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) {
$token_service = \Drupal::token();
$url_options = ['absolute' => TRUE];
if (isset($options['langcode'])) {
$url_options['language'] = \Drupal::languageManager()->getLanguage($options['langcode']);
$langcode = $options['langcode'];
}
else {
$langcode = NULL;
}
$replacements = [];
if ($type == 'file' && !empty($data['file'])) {
/** @var \Drupal\file\FileInterface $file */
$file = $data['file'];
foreach ($tokens as $name => $original) {
switch ($name) {
// Basic keys and values.
case 'fid':
$replacements[$original] = $file->id();
break;
// Essential file data
case 'name':
$replacements[$original] = $file->getFilename();
break;
case 'path':
$replacements[$original] = $file->getFileUri();
break;
case 'mime':
$replacements[$original] = $file->getMimeType();
break;
case 'size':
$replacements[$original] = ByteSizeMarkup::create($file->getSize());
break;
case 'url':
// Ideally, this would use return a relative URL, but because tokens
// are also often used in emails, it's better to keep absolute file
// URLs. The 'url.site' cache context is associated to ensure the
// correct absolute URL is used in case of a multisite setup.
$replacements[$original] = $file->createFileUrl(FALSE);
$bubbleable_metadata->addCacheContexts(['url.site']);
break;
// These tokens are default variations on the chained tokens handled below.
case 'created':
$date_format = DateFormat::load('medium');
$bubbleable_metadata->addCacheableDependency($date_format);
$replacements[$original] = \Drupal::service('date.formatter')->format($file->getCreatedTime(), 'medium', '', NULL, $langcode);
break;
case 'changed':
$date_format = DateFormat::load('medium');
$bubbleable_metadata = $bubbleable_metadata->addCacheableDependency($date_format);
$replacements[$original] = \Drupal::service('date.formatter')->format($file->getChangedTime(), 'medium', '', NULL, $langcode);
break;
case 'owner':
$owner = $file->getOwner();
$bubbleable_metadata->addCacheableDependency($owner);
$name = $owner->label();
$replacements[$original] = $name;
break;
}
}
if ($date_tokens = $token_service->findWithPrefix($tokens, 'created')) {
$replacements += $token_service->generate('date', $date_tokens, ['date' => $file->getCreatedTime()], $options, $bubbleable_metadata);
}
if ($date_tokens = $token_service->findWithPrefix($tokens, 'changed')) {
$replacements += $token_service->generate('date', $date_tokens, ['date' => $file->getChangedTime()], $options, $bubbleable_metadata);
}
if (($owner_tokens = $token_service->findWithPrefix($tokens, 'owner')) && $file->getOwner()) {
$replacements += $token_service->generate('user', $owner_tokens, ['user' => $file->getOwner()], $options, $bubbleable_metadata);
}
}
return $replacements;
}
/**
* Implements hook_token_info().
*/
function file_token_info() {
$types['file'] = [
'name' => t("Files"),
'description' => t("Tokens related to uploaded files."),
'needs-data' => 'file',
];
// File related tokens.
$file['fid'] = [
'name' => t("File ID"),
'description' => t("The unique ID of the uploaded file."),
];
$file['name'] = [
'name' => t("File name"),
'description' => t("The name of the file on disk."),
];
$file['path'] = [
'name' => t("Path"),
'description' => t("The location of the file relative to Drupal root."),
];
$file['mime'] = [
'name' => t("MIME type"),
'description' => t("The MIME type of the file."),
];
$file['size'] = [
'name' => t("File size"),
'description' => t("The size of the file."),
];
$file['url'] = [
'name' => t("URL"),
'description' => t("The web-accessible URL for the file."),
];
$file['created'] = [
'name' => t("Created"),
'description' => t("The date the file created."),
'type' => 'date',
];
$file['changed'] = [
'name' => t("Changed"),
'description' => t("The date the file was most recently changed."),
'type' => 'date',
];
$file['owner'] = [
'name' => t("Owner"),
'description' => t("The user who originally uploaded the file."),
'type' => 'user',
];
return [
'types' => $types,
'tokens' => [
'file' => $file,
],
];
}
/**
* Form submission handler for upload / remove buttons of managed_file elements.
*
* @see \Drupal\file\Element\ManagedFile::processManagedFile()
*/
function file_managed_file_submit($form, FormStateInterface $form_state) {
// Determine whether it was the upload or the remove button that was clicked,
// and set $element to the managed_file element that contains that button.
$parents = $form_state->getTriggeringElement()['#array_parents'];
$button_key = array_pop($parents);
$element = NestedArray::getValue($form, $parents);
// No action is needed here for the upload button, because all file uploads on
// the form are processed by \Drupal\file\Element\ManagedFile::valueCallback()
// regardless of which button was clicked. Action is needed here for the
// remove button, because we only remove a file in response to its remove
// button being clicked.
if ($button_key == 'remove_button') {
$fids = array_keys($element['#files']);
// Get files that will be removed.
if ($element['#multiple']) {
$remove_fids = [];
foreach (Element::children($element) as $name) {
if (str_starts_with($name, 'file_') && $element[$name]['selected']['#value']) {
$remove_fids[] = (int) substr($name, 5);
}
}
$fids = array_diff($fids, $remove_fids);
}
else {
// If we deal with single upload element remove the file and set
// element's value to empty array (file could not be removed from
// element if we don't do that).
$remove_fids = $fids;
$fids = [];
}
foreach ($remove_fids as $fid) {
// If it's a temporary file we can safely remove it immediately, otherwise
// it's up to the implementing module to remove usages of files to have them
// removed.
if ($element['#files'][$fid] && $element['#files'][$fid]->isTemporary()) {
$element['#files'][$fid]->delete();
}
}
// Update both $form_state->getValues() and FormState::$input to reflect
// that the file has been removed, so that the form is rebuilt correctly.
// $form_state->getValues() must be updated in case additional submit
// handlers run, and for form building functions that run during the
// rebuild, such as when the managed_file element is part of a field widget.
// FormState::$input must be updated so that
// \Drupal\file\Element\ManagedFile::valueCallback() has correct information
// during the rebuild.
$form_state->setValueForElement($element['fids'], implode(' ', $fids));
NestedArray::setValue($form_state->getUserInput(), $element['fids']['#parents'], implode(' ', $fids));
}
// Set the form to rebuild so that $form is correctly updated in response to
// processing the file removal. Since this function did not change $form_state
// if the upload button was clicked, a rebuild isn't necessary in that
// situation and calling $form_state->disableRedirect() would suffice.
// However, we choose to always rebuild, to keep the form processing workflow
// consistent between the two buttons.
$form_state->setRebuild();
}
/**
* Saves any files that have been uploaded into a managed_file element.
*
* @param array $element
* The FAPI element whose values are being saved.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*
* @return array|false
* An array of file entities for each file that was saved, keyed by its file
* ID. Each array element contains a file entity. Function returns FALSE if
* upload directory could not be created or no files were uploaded.
*/
function file_managed_file_save_upload($element, FormStateInterface $form_state) {
$upload_name = implode('_', $element['#parents']);
$all_files = \Drupal::request()->files->get('files', []);
if (empty($all_files[$upload_name])) {
return FALSE;
}
$file_upload = $all_files[$upload_name];
$destination = $element['#upload_location'] ?? NULL;
if (isset($destination) && !\Drupal::service('file_system')->prepareDirectory($destination, FileSystemInterface::CREATE_DIRECTORY)) {
\Drupal::logger('file')->notice('The upload directory %directory for the file field %name could not be created or is not accessible. A newly uploaded file could not be saved in this directory as a consequence, and the upload was canceled.', ['%directory' => $destination, '%name' => $element['#field_name']]);
$form_state->setError($element, t('The file could not be uploaded.'));
return FALSE;
}
// Save attached files to the database.
$files_uploaded = $element['#multiple'] && count(array_filter($file_upload)) > 0;
$files_uploaded |= !$element['#multiple'] && !empty($file_upload);
if ($files_uploaded) {
if (!$files = _file_save_upload_from_form($element, $form_state)) {
\Drupal::logger('file')->notice('The file upload failed. %upload', ['%upload' => $upload_name]);
return [];
}
// Value callback expects FIDs to be keys.
$files = array_filter($files);
$fids = array_map(function ($file) {
return $file->id();
}, $files);
return empty($files) ? [] : array_combine($fids, $files);
}
return [];
}
/**
* Prepares variables for file form widget templates.
*
* Default template: file-managed-file.html.twig.
*
* @param array $variables
* An associative array containing:
* - element: A render element representing the file.
*/
function template_preprocess_file_managed_file(&$variables) {
$element = $variables['element'];
$variables['attributes'] = [];
if (isset($element['#id'])) {
$variables['attributes']['id'] = $element['#id'];
}
if (!empty($element['#attributes']['class'])) {
$variables['attributes']['class'] = (array) $element['#attributes']['class'];
}
}
/**
* Prepares variables for file link templates.
*
* Default template: file-link.html.twig.
*
* @param array $variables
* An associative array containing:
* - file: A File entity to which the link will be created.
* - icon_directory: (optional) A path to a directory of icons to be used for
* files. Defaults to the value of the "icon.directory" variable.
* - description: A description to be displayed instead of the filename.
* - attributes: An associative array of attributes to be placed in the a tag.
*/
function template_preprocess_file_link(&$variables) {
$file = $variables['file'];
$options = [];
/** @var \Drupal\Core\File\FileUrlGeneratorInterface $file_url_generator */
$file_url_generator = \Drupal::service('file_url_generator');
$url = $file_url_generator->generate($file->getFileUri());
$mime_type = $file->getMimeType();
$options['attributes']['type'] = $mime_type;
// Use the description as the link text if available.
if (empty($variables['description'])) {
$link_text = $file->getFilename();
}
else {
$link_text = $variables['description'];
$options['attributes']['title'] = $file->getFilename();
}
// Classes to add to the file field for icons.
$classes = [
'file',
// Add a specific class for each and every mime type.
'file--mime-' . strtr($mime_type, ['/' => '-', '.' => '-']),
// Add a more general class for groups of well known MIME types.
'file--' . IconMimeTypes::getIconClass($mime_type),
];
// Set file classes to the options array.
$variables['attributes'] = new Attribute($variables['attributes']);
$variables['attributes']->addClass($classes);
$variables['file_size'] = $file->getSize() !== NULL ? ByteSizeMarkup::create($file->getSize()) : '';
$variables['link'] = Link::fromTextAndUrl($link_text, $url->mergeOptions($options))->toRenderable();
}
/**
* Prepares variables for multi file form widget templates.
*
* Default template: file-widget-multiple.html.twig.
*
* @param array $variables
* An associative array containing:
* - element: A render element representing the widgets.
*/
function template_preprocess_file_widget_multiple(&$variables) {
$element = $variables['element'];
// Special ID and classes for draggable tables.
$weight_class = $element['#id'] . '-weight';
$table_id = $element['#id'] . '-table';
// Build up a table of applicable fields.
$headers = [];
$headers[] = t('File information');
if ($element['#display_field']) {
$headers[] = [
'data' => t('Display'),
'class' => ['checkbox'],
];
}
$headers[] = t('Weight');
$headers[] = t('Operations');
// Get our list of widgets in order (needed when the form comes back after
// preview or failed validation).
$widgets = [];
foreach (Element::children($element) as $key) {
$widgets[] = &$element[$key];
}
usort($widgets, '_field_multiple_value_form_sort_helper');
$rows = [];
foreach ($widgets as &$widget) {
// Save the uploading row for last.
if (empty($widget['#files'])) {
$widget['#title'] = $element['#file_upload_title'];
$widget['#description'] = \Drupal::service('renderer')->renderInIsolation($element['#file_upload_description']);
continue;
}
// Delay rendering of the buttons, so that they can be rendered later in the
// "operations" column.
$operations_elements = [];
foreach (Element::children($widget) as $key) {
if (isset($widget[$key]['#type']) && $widget[$key]['#type'] == 'submit') {
hide($widget[$key]);
$operations_elements[] = &$widget[$key];
}
}
// Delay rendering of the "Display" option and the weight selector, so that
// each can be rendered later in its own column.
if ($element['#display_field']) {
hide($widget['display']);
}
hide($widget['_weight']);
$widget['_weight']['#attributes']['class'] = [$weight_class];
// Render everything else together in a column, without the normal wrappers.
$row = [];
$widget['#theme_wrappers'] = [];
$row[] = \Drupal::service('renderer')->render($widget);
// Arrange the row with the rest of the rendered columns.
if ($element['#display_field']) {
unset($widget['display']['#title']);
$row[] = [
'data' => $widget['display'],
'class' => ['checkbox'],
];
}
$row[] = [
'data' => $widget['_weight'],
];
// Show the buttons that had previously been marked as hidden in this
// preprocess function. We use show() to undo the earlier hide().
foreach (Element::children($operations_elements) as $key) {
show($operations_elements[$key]);
}
$row[] = [
'data' => $operations_elements,
];
$rows[] = [
'data' => $row,
'class' => isset($widget['#attributes']['class']) ? array_merge($widget['#attributes']['class'], ['draggable']) : ['draggable'],
];
}
$variables['table'] = [
'#type' => 'table',
'#header' => $headers,
'#rows' => $rows,
'#attributes' => [
'id' => $table_id,
],
'#tabledrag' => [
[
'action' => 'order',
'relationship' => 'sibling',
'group' => $weight_class,
],
],
'#access' => !empty($rows),
];
$variables['element'] = $element;
}
/**
* Prepares variables for file upload help text templates.
*
* Default template: file-upload-help.html.twig.
*
* @param array $variables
* An associative array containing:
* - description: The normal description for this field, specified by the
* user.
* - upload_validators: An array of upload validators as used in
* $element['#upload_validators'].
*/
function template_preprocess_file_upload_help(&$variables) {
$description = $variables['description'];
$upload_validators = $variables['upload_validators'];
$cardinality = $variables['cardinality'];
$descriptions = [];
if (!empty($description)) {
$descriptions[] = FieldFilteredMarkup::create($description);
}
if (isset($cardinality)) {
if ($cardinality == -1) {
$descriptions[] = t('Unlimited number of files can be uploaded to this field.');
}
else {
$descriptions[] = \Drupal::translation()->formatPlural($cardinality, 'One file only.', 'Maximum @count files.');
}
}
if (isset($upload_validators['file_validate_size'])) {
@trigger_error('\'file_validate_size\' is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'FileSizeLimit\' constraint instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$descriptions[] = t('@size limit.', ['@size' => ByteSizeMarkup::create($upload_validators['file_validate_size'][0])]);
}
if (isset($upload_validators['FileSizeLimit'])) {
$descriptions[] = t('@size limit.', ['@size' => ByteSizeMarkup::create($upload_validators['FileSizeLimit']['fileLimit'])]);
}
if (isset($upload_validators['file_validate_extensions'])) {
@trigger_error('\'file_validate_extensions\' is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'FileExtension\' constraint instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$descriptions[] = t('Allowed types: @extensions.', ['@extensions' => $upload_validators['file_validate_extensions'][0]]);
}
if (isset($upload_validators['FileExtension'])) {
$descriptions[] = t('Allowed types: @extensions.', ['@extensions' => $upload_validators['FileExtension']['extensions']]);
}
if (isset($upload_validators['file_validate_image_resolution']) || isset($upload_validators['FileImageDimensions'])) {
if (isset($upload_validators['file_validate_image_resolution'])) {
@trigger_error('\'file_validate_image_resolution\' is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. Use the \'FileImageDimensions\' constraint instead. See https://www.drupal.org/node/3363700', E_USER_DEPRECATED);
$max = $upload_validators['file_validate_image_resolution'][0];
$min = $upload_validators['file_validate_image_resolution'][1];
}
else {
$max = $upload_validators['FileImageDimensions']['maxDimensions'];
$min = $upload_validators['FileImageDimensions']['minDimensions'];
}
if ($min && $max && $min == $max) {
$descriptions[] = t('Images must be exactly @size pixels.', ['@size' => $max]);
}
elseif ($min && $max) {
$descriptions[] = t('Images must be larger than @min pixels. Images larger than @max pixels will be resized.', [
'@min' => $min,
'@max' => $max,
]);
}
elseif ($min) {
$descriptions[] = t('Images must be larger than @min pixels.', ['@min' => $min]);
}
elseif ($max) {
$descriptions[] = t('Images larger than @max pixels will be resized.', ['@max' => $max]);
}
}
$variables['descriptions'] = $descriptions;
}
/**
* Gets a class for the icon for a MIME type.
*
* @param string $mime_type
* A MIME type.
*
* @return string
* A class associated with the file.
*
* @deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use
* \Drupal\file\IconMimeTypes::getIconClass() instead.
*
* @see https://www.drupal.org/node/3411269
*/
function file_icon_class($mime_type) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use \Drupal\file\IconMimeTypes::getIconClass() instead. See https://www.drupal.org/node/3411269', E_USER_DEPRECATED);
return IconMimeTypes::getIconClass($mime_type);
}
/**
* Determines the generic icon MIME package based on a file's MIME type.
*
* @param string $mime_type
* A MIME type.
*
* @return string|false
* The generic icon MIME package expected for this file.
*
* @deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use
* \Drupal\file\IconMimeTypes::getGenericMimeType() instead.
*
* @see https://www.drupal.org/node/3411269
*/
function file_icon_map($mime_type) {
@trigger_error(__FUNCTION__ . '() is deprecated in drupal:10.3.0 and is removed from drupal:11.0.0. Use \Drupal\file\IconMimeTypes::getGenericMimeType() instead. See https://www.drupal.org/node/3411269', E_USER_DEPRECATED);
return IconMimeTypes::getGenericMimeType($mime_type);
}
/**
* Retrieves a list of references to a file.
*
* @param \Drupal\file\FileInterface $file
* A file entity.
* @param \Drupal\Core\Field\FieldDefinitionInterface|null $field
* (optional) A field definition to be used for this check. If given,
* limits the reference check to the given field. Defaults to NULL.
* @param int $age
* (optional) A constant that specifies which references to count. Use
* EntityStorageInterface::FIELD_LOAD_REVISION (the default) to retrieve all
* references within all revisions or
* EntityStorageInterface::FIELD_LOAD_CURRENT to retrieve references only in
* the current revisions of all entities that have references to this file.
* @param string $field_type
* (optional) The name of a field type. If given, limits the reference check
* to fields of the given type. If both $field and $field_type are given but
* $field is not the same type as $field_type, an empty array will be
* returned. Defaults to 'file'.
*
* @return array
* A multidimensional array. The keys are field_name, entity_type,
* entity_id and the value is an entity referencing this file.
*
* @ingroup file
*/
function file_get_file_references(FileInterface $file, FieldDefinitionInterface $field = NULL, $age = EntityStorageInterface::FIELD_LOAD_REVISION, $field_type = 'file') {
$references = &drupal_static(__FUNCTION__, []);
$field_columns = &drupal_static(__FUNCTION__ . ':field_columns', []);
// Fill the static cache, disregard $field and $field_type for now.
if (!isset($references[$file->id()][$age])) {
$references[$file->id()][$age] = [];
$usage_list = \Drupal::service('file.usage')->listUsage($file);
$file_usage_list = $usage_list['file'] ?? [];
foreach ($file_usage_list as $entity_type_id => $entity_ids) {
$entities = \Drupal::entityTypeManager()
->getStorage($entity_type_id)->loadMultiple(array_keys($entity_ids));
foreach ($entities as $entity) {
$bundle = $entity->bundle();
// We need to find file fields for this entity type and bundle.
if (!isset($file_fields[$entity_type_id][$bundle])) {
$file_fields[$entity_type_id][$bundle] = [];
// This contains the possible field names.
foreach ($entity->getFieldDefinitions() as $field_name => $field_definition) {
// If this is the first time this field type is seen, check
// whether it references files.
if (!isset($field_columns[$field_definition->getType()])) {
$field_columns[$field_definition->getType()] = file_field_find_file_reference_column($field_definition);
}
// If the field type does reference files then record it.
if ($field_columns[$field_definition->getType()]) {
$file_fields[$entity_type_id][$bundle][$field_name] = $field_columns[$field_definition->getType()];
}
}
}
foreach ($file_fields[$entity_type_id][$bundle] as $field_name => $field_column) {
// Iterate over the field items to find the referenced file and field
// name. This will fail if the usage checked is in a non-current
// revision because field items are from the current
// revision.
// We also iterate over all translations because a file can be linked
// to a language other than the default.
foreach ($entity->getTranslationLanguages() as $langcode => $language) {
foreach ($entity->getTranslation($langcode)->get($field_name) as $item) {
if ($file->id() == $item->{$field_column}) {
$references[$file->id()][$age][$field_name][$entity_type_id][$entity->id()] = $entity;
break;
}
}
}
}
}
}
}
$return = $references[$file->id()][$age];
// Filter the static cache down to the requested entries. The usual static
// cache is very small so this will be very fast.
$entity_field_manager = \Drupal::service('entity_field.manager');
if ($field || $field_type) {
foreach ($return as $field_name => $data) {
foreach (array_keys($data) as $entity_type_id) {
$field_storage_definitions = $entity_field_manager->getFieldStorageDefinitions($entity_type_id);
$current_field = $field_storage_definitions[$field_name];
if (($field_type && $current_field->getType() != $field_type) || ($field && $field->uuid() != $current_field->uuid())) {
unset($return[$field_name][$entity_type_id]);
}
}
}
}
return $return;
}
/**
* Determine whether a field references files stored in {file_managed}.
*
* @param \Drupal\Core\Field\FieldDefinitionInterface $field
* A field definition.
*
* @return bool
* The field column if the field references {file_managed}.fid, typically
* fid, FALSE if it does not.
*/
function file_field_find_file_reference_column(FieldDefinitionInterface $field) {
$schema = $field->getFieldStorageDefinition()->getSchema();
foreach ($schema['foreign keys'] as $data) {
if ($data['table'] == 'file_managed') {
foreach ($data['columns'] as $field_column => $column) {
if ($column == 'fid') {
return $field_column;
}
}
}
}
return FALSE;
}
/**
* Implements hook_form_FORM_ID_alter().
*
* Injects the file sanitization options into /admin/config/media/file-system.
*
* These settings are enforced during upload by the FileEventSubscriber that
* listens to the FileUploadSanitizeNameEvent event.
*
* @see \Drupal\system\Form\FileSystemForm
* @see \Drupal\Core\File\Event\FileUploadSanitizeNameEvent
* @see \Drupal\file\EventSubscriber\FileEventSubscriber
*/
function file_form_system_file_system_settings_alter(array &$form, FormStateInterface $form_state) {
$config = \Drupal::config('file.settings');
$form['filename_sanitization'] = [
'#type' => 'details',
'#title' => t('Sanitize filenames'),
'#description' => t('These settings only apply to new files as they are uploaded. Changes here do not affect existing file names.'),
'#open' => TRUE,
'#tree' => TRUE,
];
$form['filename_sanitization']['replacement_character'] = [
'#type' => 'select',
'#title' => t('Replacement character'),
'#default_value' => $config->get('filename_sanitization.replacement_character'),
'#options' => [
'-' => t('Dash (-)'),
'_' => t('Underscore (_)'),
],
'#description' => t('Used when replacing whitespace, replacing non-alphanumeric characters or transliterating unknown characters.'),
];
$form['filename_sanitization']['transliterate'] = [
'#type' => 'checkbox',
'#title' => t('Transliterate'),
'#default_value' => $config->get('filename_sanitization.transliterate'),
'#description' => t('Transliteration replaces any characters that are not alphanumeric, underscores, periods or hyphens with the replacement character. It ensures filenames only contain ASCII characters. It is recommended to keep transliteration enabled.'),
];
$form['filename_sanitization']['replace_whitespace'] = [
'#type' => 'checkbox',
'#title' => t('Replace whitespace with the replacement character'),
'#default_value' => $config->get('filename_sanitization.replace_whitespace'),
];
$form['filename_sanitization']['replace_non_alphanumeric'] = [
'#type' => 'checkbox',
'#title' => t('Replace non-alphanumeric characters with the replacement character'),
'#default_value' => $config->get('filename_sanitization.replace_non_alphanumeric'),
'#description' => t('Alphanumeric characters, dots (.), underscores (_) and dashes (-) are preserved.'),
];
$form['filename_sanitization']['deduplicate_separators'] = [
'#type' => 'checkbox',
'#title' => t('Replace sequences of dots, underscores and/or dashes with the replacement character'),
'#default_value' => $config->get('filename_sanitization.deduplicate_separators'),
];
$form['filename_sanitization']['lowercase'] = [
'#type' => 'checkbox',
'#title' => t('Convert to lowercase'),
'#default_value' => $config->get('filename_sanitization.lowercase'),
];
$form['#submit'][] = 'file_system_settings_submit';
}
/**
* Form submission handler for file system settings form.
*/
function file_system_settings_submit(array &$form, FormStateInterface $form_state) {
$config = \Drupal::configFactory()->getEditable('file.settings')
->set('filename_sanitization', $form_state->getValue('filename_sanitization'));
$config->save();
}