diff core/modules/file/file.api.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/modules/file/file.api.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * @file
+ * Hooks for file module.
+ */
+
+/**
+ * @addtogroup hooks
+ * @{
+ */
+
+/**
+ * Check that files meet a given criteria.
+ *
+ * This hook lets modules perform additional validation on files. They're able
+ * to report a failure by returning one or more error messages.
+ *
+ * @param \Drupal\file\FileInterface $file
+ *   The file entity being validated.
+ * @return array
+ *   An array of error messages. If there are no problems with the file return
+ *   an empty array.
+ *
+ * @see file_validate()
+ */
+function hook_file_validate(Drupal\file\FileInterface $file) {
+  $errors = [];
+
+  if (!$file->getFilename()) {
+    $errors[] = t("The file's name is empty. Please give a name to the file.");
+  }
+  if (strlen($file->getFilename()) > 255) {
+    $errors[] = t("The file's name exceeds the 255 characters limit. Please rename the file and try again.");
+  }
+
+  return $errors;
+}
+
+/**
+ * Respond to a file that has been copied.
+ *
+ * @param \Drupal\file\FileInterface $file
+ *   The newly copied file entity.
+ * @param \Drupal\file\FileInterface $source
+ *   The original file before the copy.
+ *
+ * @see file_copy()
+ */
+function hook_file_copy(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
+  // Make sure that the file name starts with the owner's user name.
+  if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
+    $file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
+    $file->save();
+
+    \Drupal::logger('file')->notice('Copied file %source has been renamed to %destination', ['%source' => $source->filename, '%destination' => $file->getFilename()]);
+  }
+}
+
+/**
+ * Respond to a file that has been moved.
+ *
+ * @param \Drupal\file\FileInterface $file
+ *   The updated file entity after the move.
+ * @param \Drupal\file\FileInterface $source
+ *   The original file entity before the move.
+ *
+ * @see file_move()
+ */
+function hook_file_move(Drupal\file\FileInterface $file, Drupal\file\FileInterface $source) {
+  // Make sure that the file name starts with the owner's user name.
+  if (strpos($file->getFilename(), $file->getOwner()->name) !== 0) {
+    $file->setFilename($file->getOwner()->name . '_' . $file->getFilename());
+    $file->save();
+
+    \Drupal::logger('file')->notice('Moved file %source has been renamed to %destination', ['%source' => $source->filename, '%destination' => $file->getFilename()]);
+  }
+}
+
+/**
+ * @} End of "addtogroup hooks".
+ */