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php-phpbb/phpBB/phpbb/filesystem/filesystem_interface.php
2015-07-16 22:52:25 -07:00

285 lines
10 KiB
PHP

<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
namespace phpbb\filesystem;
/**
* Interface for phpBB's filesystem service
*/
interface filesystem_interface
{
/**
* chmod all permissions flag
*
* @var int
*/
const CHMOD_ALL = 7;
/**
* chmod read permissions flag
*
* @var int
*/
const CHMOD_READ = 4;
/**
* chmod write permissions flag
*
* @var int
*/
const CHMOD_WRITE = 2;
/**
* chmod execute permissions flag
*
* @var int
*/
const CHMOD_EXECUTE = 1;
/**
* Change owner group of files/directories
*
* @param string|array|\Traversable $files The file(s)/directorie(s) to change group
* @param string $group The group that should own the files/directories
* @param bool $recursive If the group should be changed recursively
* @throws \phpbb\filesystem\exception\filesystem_exception the filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function chgrp($files, $group, $recursive = false);
/**
* Global function for chmodding directories and files for internal use
*
* The function accepts filesystem_interface::CHMOD_ flags in the permission argument
* or the user can specify octal values (or any integer if it makes sense). All directories will have
* an execution bit appended, if the user group (owner, group or other) has any bit specified.
*
* @param string|array|\Traversable $files The file/directory to be chmodded
* @param int $perms Permissions to set
* @param bool $recursive If the permissions should be changed recursively
* @param bool $force_chmod_link Try to apply permissions to symlinks as well
*
* @throws \phpbb\filesystem\exception\filesystem_exception the filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function chmod($files, $perms = null, $recursive = false, $force_chmod_link = false);
/**
* Change owner group of files/directories
*
* @param string|array|\Traversable $files The file(s)/directorie(s) to change group
* @param string $user The owner user name
* @param bool $recursive Whether change the owner recursively or not
*
* @throws \phpbb\filesystem\exception\filesystem_exception the filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function chown($files, $user, $recursive = false);
/**
* Eliminates useless . and .. components from specified path.
*
* @param string $path Path to clean
*
* @return string Cleaned path
*/
public function clean_path($path);
/**
* Copies a file.
*
* This method only copies the file if the origin file is newer than the target file.
*
* By default, if the target already exists, it is not overridden.
*
* @param string $origin_file The original filename
* @param string $target_file The target filename
* @param bool $override Whether to override an existing file or not
*
* @throws \phpbb\filesystem\exception\filesystem_exception When the file cannot be copied
*/
public function copy($origin_file, $target_file, $override = false);
/**
* Atomically dumps content into a file.
*
* @param string $filename The file to be written to.
* @param string $content The data to write into the file.
*
* @throws \phpbb\filesystem\exception\filesystem_exception When the file cannot be written
*/
public function dump_file($filename, $content);
/**
* Checks the existence of files or directories.
*
* @param string|array|\Traversable $files files/directories to check
*
* @return bool Returns true if all files/directories exist, false otherwise
*/
public function exists($files);
/**
* Checks if a path is absolute or not
*
* @param string $path Path to check
*
* @return bool true if the path is absolute, false otherwise
*/
public function is_absolute_path($path);
/**
* Checks if files/directories are readable
*
* @param string|array|\Traversable $files files/directories to check
* @param bool $recursive Whether or not directories should be checked recursively
*
* @return bool True when the files/directories are readable, otherwise false.
*/
public function is_readable($files, $recursive = false);
/**
* Test if a file/directory is writable
*
* @param string|array|\Traversable $files files/directories to perform write test on
* @param bool $recursive Whether or not directories should be checked recursively
*
* @return bool True when the files/directories are writable, otherwise false.
*/
public function is_writable($files, $recursive = false);
/**
* Given an existing path, convert it to a path relative to a given starting path
*
* @param string $end_path Absolute path of target
* @param string $start_path Absolute path where traversal begins
*
* @return string Path of target relative to starting path
*/
public function make_path_relative($end_path, $start_path);
/**
* Mirrors a directory to another.
*
* @param string $origin_dir The origin directory
* @param string $target_dir The target directory
* @param \Traversable $iterator A Traversable instance
* @param array $options An array of boolean options
* Valid options are:
* - $options['override'] Whether to override an existing file on copy or not (see copy())
* - $options['copy_on_windows'] Whether to copy files instead of links on Windows (see symlink())
* - $options['delete'] Whether to delete files that are not in the source directory (defaults to false)
*
* @throws \phpbb\filesystem\exception\filesystem_exception When the file cannot be copied.
* The filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function mirror($origin_dir, $target_dir, \Traversable $iterator = null, $options = array());
/**
* Creates a directory recursively.
*
* @param string|array|\Traversable $dirs The directory path
* @param int $mode The directory mode
*
* @throws \phpbb\filesystem\exception\filesystem_exception On any directory creation failure
* The filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function mkdir($dirs, $mode = 0777);
/**
* Global function for chmodding directories and files for internal use
*
* This function determines owner and group whom the file belongs to and user and group of PHP and then set safest possible file permissions.
* The function determines owner and group from common.php file and sets the same to the provided file.
* The function uses bit fields to build the permissions.
* The function sets the appropiate execute bit on directories.
*
* Supported constants representing bit fields are:
*
* filesystem_interface::CHMOD_ALL - all permissions (7)
* filesystem_interface::CHMOD_READ - read permission (4)
* filesystem_interface::CHMOD_WRITE - write permission (2)
* filesystem_interface::CHMOD_EXECUTE - execute permission (1)
*
* NOTE: The function uses POSIX extension and fileowner()/filegroup() functions. If any of them is disabled, this function tries to build proper permissions, by calling is_readable() and is_writable() functions.
*
* @param string|array|\Traversable $file The file/directory to be chmodded
* @param int $perms Permissions to set
* @param bool $recursive If the permissions should be changed recursively
* @param bool $force_chmod_link Try to apply permissions to symlinks as well
*
* @throws \phpbb\filesystem\exception\filesystem_exception the filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function phpbb_chmod($file, $perms = null, $recursive = false, $force_chmod_link = false);
/**
* A wrapper for PHP's realpath
*
* Try to resolve realpath when PHP's realpath is not available, or
* known to be buggy.
*
* @param string $path Path to resolve
*
* @return string Resolved path
*/
public function realpath($path);
/**
* Removes files or directories.
*
* @param string|array|\Traversable $files A filename, an array of files, or a \Traversable instance to remove
*
* @throws \phpbb\filesystem\exception\filesystem_exception When removal fails.
* The filename which triggered the error can be
* retrieved by filesystem_exception::get_filename()
*/
public function remove($files);
/**
* Renames a file or a directory.
*
* @param string $origin The origin filename or directory
* @param string $target The new filename or directory
* @param bool $overwrite Whether to overwrite the target if it already exists
*
* @throws \phpbb\filesystem\exception\filesystem_exception When target file or directory already exists,
* or origin cannot be renamed.
*/
public function rename($origin, $target, $overwrite = false);
/**
* Creates a symbolic link or copy a directory.
*
* @param string $origin_dir The origin directory path
* @param string $target_dir The symbolic link name
* @param bool $copy_on_windows Whether to copy files if on Windows
*
* @throws \phpbb\filesystem\exception\filesystem_exception When symlink fails
*/
public function symlink($origin_dir, $target_dir, $copy_on_windows = false);
/**
* Sets access and modification time of file.
*
* @param string|array|\Traversable $files A filename, an array of files, or a \Traversable instance to create
* @param int $time The touch time as a Unix timestamp
* @param int $access_time The access time as a Unix timestamp
*
* @throws \phpbb\filesystem\exception\filesystem_exception When touch fails
*/
public function touch($files, $time = null, $access_time = null);
}