diff core/lib/Drupal/Core/File/FileSystemInterface.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/File/FileSystemInterface.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,240 @@
+<?php
+
+namespace Drupal\Core\File;
+
+/**
+ * Provides an interface for helpers that operate on files and stream wrappers.
+ */
+interface FileSystemInterface {
+
+  /**
+   * Moves an uploaded file to a new location.
+   *
+   * PHP's move_uploaded_file() does not properly support streams if
+   * open_basedir is enabled, so this function fills that gap.
+   *
+   * Compatibility: normal paths and stream wrappers.
+   *
+   * @param string $filename
+   *   The filename of the uploaded file.
+   * @param string $uri
+   *   A string containing the destination URI of the file.
+   *
+   * @return bool
+   *   TRUE on success, or FALSE on failure.
+   *
+   * @see move_uploaded_file()
+   * @see https://www.drupal.org/node/515192
+   * @ingroup php_wrappers
+   */
+  public function moveUploadedFile($filename, $uri);
+
+  /**
+   * Sets the permissions on a file or directory.
+   *
+   * This function will use the file_chmod_directory and
+   * file_chmod_file settings for the default modes for directories
+   * and uploaded/generated files. By default these will give everyone read
+   * access so that users accessing the files with a user account without the
+   * webserver group (e.g. via FTP) can read these files, and give group write
+   * permissions so webserver group members (e.g. a vhost account) can alter
+   * files uploaded and owned by the webserver.
+   *
+   * PHP's chmod does not support stream wrappers so we use our wrapper
+   * implementation which interfaces with chmod() by default. Contrib wrappers
+   * may override this behavior in their implementations as needed.
+   *
+   * @param string $uri
+   *   A string containing a URI file, or directory path.
+   * @param int $mode
+   *   Integer value for the permissions. Consult PHP chmod() documentation for
+   *   more information.
+   *
+   * @return bool
+   *   TRUE for success, FALSE in the event of an error.
+   *
+   * @ingroup php_wrappers
+   */
+  public function chmod($uri, $mode = NULL);
+
+  /**
+   * Deletes a file.
+   *
+   * PHP's unlink() is broken on Windows, as it can fail to remove a file when
+   * it has a read-only flag set.
+   *
+   * @param string $uri
+   *   A URI or pathname.
+   * @param resource $context
+   *   Refer to http://php.net/manual/ref.stream.php
+   *
+   * @return bool
+   *   Boolean TRUE on success, or FALSE on failure.
+   *
+   * @see unlink()
+   * @ingroup php_wrappers
+   */
+  public function unlink($uri, $context = NULL);
+
+  /**
+   * Resolves the absolute filepath of a local URI or filepath.
+   *
+   * The use of this method is discouraged, because it does not work for
+   * remote URIs. Except in rare cases, URIs should not be manually resolved.
+   *
+   * Only use this function if you know that the stream wrapper in the URI uses
+   * the local file system, and you need to pass an absolute path to a function
+   * that is incompatible with stream URIs.
+   *
+   * @param string $uri
+   *   A stream wrapper URI or a filepath, possibly including one or more
+   *   symbolic links.
+   *
+   * @return string|false
+   *   The absolute local filepath (with no symbolic links) or FALSE on failure.
+   *
+   * @see \Drupal\Core\StreamWrapper\StreamWrapperInterface::realpath()
+   * @see http://php.net/manual/function.realpath.php
+   * @ingroup php_wrappers
+   */
+  public function realpath($uri);
+
+  /**
+   * Gets the name of the directory from a given path.
+   *
+   * PHP's dirname() does not properly pass streams, so this function fills that
+   * gap. It is backwards compatible with normal paths and will use PHP's
+   * dirname() as a fallback.
+   *
+   * Compatibility: normal paths and stream wrappers.
+   *
+   * @param string $uri
+   *   A URI or path.
+   *
+   * @return string
+   *   A string containing the directory name.
+   *
+   * @see dirname()
+   * @see https://www.drupal.org/node/515192
+   * @ingroup php_wrappers
+   */
+  public function dirname($uri);
+
+  /**
+   * Gets the filename from a given path.
+   *
+   * PHP's basename() does not properly support streams or filenames beginning
+   * with a non-US-ASCII character.
+   *
+   * @see http://bugs.php.net/bug.php?id=37738
+   * @see basename()
+   *
+   * @ingroup php_wrappers
+   */
+  public function basename($uri, $suffix = NULL);
+
+  /**
+   * Creates a directory, optionally creating missing components in the path to
+   * the directory.
+   *
+   * When PHP's mkdir() creates a directory, the requested mode is affected by
+   * the process's umask. This function overrides the umask and sets the mode
+   * explicitly for all directory components created.
+   *
+   * @param string $uri
+   *   A URI or pathname.
+   * @param int $mode
+   *   Mode given to created directories. Defaults to the directory mode
+   *   configured in the Drupal installation. It must have a leading zero.
+   * @param bool $recursive
+   *   Create directories recursively, defaults to FALSE. Cannot work with a
+   *   mode which denies writing or execution to the owner of the process.
+   * @param resource $context
+   *   Refer to http://php.net/manual/ref.stream.php
+   *
+   * @return bool
+   *   Boolean TRUE on success, or FALSE on failure.
+   *
+   * @see mkdir()
+   * @see https://www.drupal.org/node/515192
+   * @ingroup php_wrappers
+   *
+   * @todo Update with open_basedir compatible recursion logic from
+   *   \Drupal\Component\PhpStorage\FileStorage::ensureDirectory().
+   */
+  public function mkdir($uri, $mode = NULL, $recursive = FALSE, $context = NULL);
+
+  /**
+   * Removes a directory.
+   *
+   * PHP's rmdir() is broken on Windows, as it can fail to remove a directory
+   * when it has a read-only flag set.
+   *
+   * @param string $uri
+   *   A URI or pathname.
+   * @param resource $context
+   *   Refer to http://php.net/manual/ref.stream.php
+   *
+   * @return bool
+   *   Boolean TRUE on success, or FALSE on failure.
+   *
+   * @see rmdir()
+   * @ingroup php_wrappers
+   */
+  public function rmdir($uri, $context = NULL);
+
+  /**
+   * Creates a file with a unique filename in the specified directory.
+   *
+   * PHP's tempnam() does not return a URI like we want. This function will
+   * return a URI if given a URI, or it will return a filepath if given a
+   * filepath.
+   *
+   * Compatibility: normal paths and stream wrappers.
+   *
+   * @param string $directory
+   *   The directory where the temporary filename will be created.
+   * @param string $prefix
+   *   The prefix of the generated temporary filename.
+   *   Note: Windows uses only the first three characters of prefix.
+   *
+   * @return string|bool
+   *   The new temporary filename, or FALSE on failure.
+   *
+   * @see tempnam()
+   * @see https://www.drupal.org/node/515192
+   * @ingroup php_wrappers
+   */
+  public function tempnam($directory, $prefix);
+
+  /**
+   * Returns the scheme of a URI (e.g. a stream).
+   *
+   * @param string $uri
+   *   A stream, referenced as "scheme://target" or "data:target".
+   *
+   * @return string|bool
+   *   A string containing the name of the scheme, or FALSE if none. For
+   *   example, the URI "public://example.txt" would return "public".
+   *
+   * @see file_uri_target()
+   */
+  public function uriScheme($uri);
+
+  /**
+   * Checks that the scheme of a stream URI is valid.
+   *
+   * Confirms that there is a registered stream handler for the provided scheme
+   * and that it is callable. This is useful if you want to confirm a valid
+   * scheme without creating a new instance of the registered handler.
+   *
+   * @param string $scheme
+   *   A URI scheme, a stream is referenced as "scheme://target".
+   *
+   * @return bool
+   *   Returns TRUE if the string is the name of a validated stream, or FALSE if
+   *   the scheme does not have a registered handler.
+   */
+  public function validScheme($scheme);
+
+}