150 lines
4.2 KiB
PHP
Executable File
150 lines
4.2 KiB
PHP
Executable File
<?php
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/**
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* Hoa
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*
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*
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* @license
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*
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* New BSD License
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*
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* Copyright © 2007-2017, Hoa community. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Hoa nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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namespace Psy\Readline\Hoa;
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/**
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* Class \Hoa\File\Link.
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*
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* Link handler.
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*/
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class FileLink extends File
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{
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/**
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* Open a link.
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*/
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public function __construct(
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string $streamName,
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string $mode,
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?string $context = null,
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bool $wait = false
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) {
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if (!\is_link($streamName)) {
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throw new FileException('File %s is not a link.', 0, $streamName);
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}
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parent::__construct($streamName, $mode, $context, $wait);
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return;
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}
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/**
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* Get informations about a link.
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*/
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public function getStatistic(): array
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{
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return \lstat($this->getStreamName());
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}
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/**
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* Change file group.
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*/
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public function changeGroup($group): bool
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{
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return \lchgrp($this->getStreamName(), $group);
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}
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/**
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* Change file owner.
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*/
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public function changeOwner($user): bool
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{
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return \lchown($this->getStreamName(), $user);
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}
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/**
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* Get file permissions.
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*/
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public function getPermissions(): int
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{
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return 41453; // i.e. lrwxr-xr-x
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}
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/**
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* Get the target of a symbolic link.
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*/
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public function getTarget(): FileGeneric
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{
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$target = \dirname($this->getStreamName()).\DIRECTORY_SEPARATOR.
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$this->getTargetName();
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$context = null !== $this->getStreamContext()
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? $this->getStreamContext()->getCurrentId()
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: null;
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if (true === \is_link($target)) {
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return new FileLinkReadWrite(
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$target,
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File::MODE_APPEND_READ_WRITE,
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$context
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);
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} elseif (true === \is_file($target)) {
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return new FileReadWrite(
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$target,
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File::MODE_APPEND_READ_WRITE,
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$context
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);
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} elseif (true === \is_dir($target)) {
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return new FileDirectory(
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$target,
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File::MODE_READ,
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$context
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);
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}
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throw new FileException('Cannot find an appropriated object that matches with '.'path %s when defining it.', 1, $target);
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}
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/**
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* Get the target name of a symbolic link.
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*/
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public function getTargetName(): string
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{
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return \readlink($this->getStreamName());
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}
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/**
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* Create a link.
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*/
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public static function create(string $name, string $target): bool
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{
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if (false !== \linkinfo($name)) {
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return true;
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}
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return \symlink($target, $name);
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}
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}
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