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upload mass deface mass delete console info server
name : FileLink.php
 <?php

/**
 * Hoa
 *
 *
 * @license
 *
 * New BSD License
 *
 * Copyright © 2007-2017, Hoa community. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Hoa nor the names of its contributors may be
 *       used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

namespace Psy\Readline\Hoa;

/**
 * Class \Hoa\File\Link.
 *
 * Link handler.
 */
class FileLink extends File
{
    /**
     * Open a link.
     */
    public function __construct(
        string $streamName,
        string $mode,
        ?string $context = null,
        bool $wait = false
    ) {
        if (!\is_link($streamName)) {
            throw new FileException('File %s is not a link.', 0, $streamName);
        }

        parent::__construct($streamName, $mode, $context, $wait);

        return;
    }

    /**
     * Get informations about a link.
     */
    public function getStatistic(): array
    {
        return \lstat($this->getStreamName());
    }

    /**
     * Change file group.
     */
    public function changeGroup($group): bool
    {
        return \lchgrp($this->getStreamName(), $group);
    }

    /**
     * Change file owner.
     */
    public function changeOwner($user): bool
    {
        return \lchown($this->getStreamName(), $user);
    }

    /**
     * Get file permissions.
     */
    public function getPermissions(): int
    {
        return 41453; // i.e. lrwxr-xr-x
    }

    /**
     * Get the target of a symbolic link.
     */
    public function getTarget(): FileGeneric
    {
        $target = \dirname($this->getStreamName()).\DIRECTORY_SEPARATOR.
                   $this->getTargetName();
        $context = null !== $this->getStreamContext()
                       ? $this->getStreamContext()->getCurrentId()
                       : null;

        if (true === \is_link($target)) {
            return new FileLinkReadWrite(
                $target,
                File::MODE_APPEND_READ_WRITE,
                $context
            );
        } elseif (true === \is_file($target)) {
            return new FileReadWrite(
                $target,
                File::MODE_APPEND_READ_WRITE,
                $context
            );
        } elseif (true === \is_dir($target)) {
            return new FileDirectory(
                $target,
                File::MODE_READ,
                $context
            );
        }

        throw new FileException('Cannot find an appropriated object that matches with '.'path %s when defining it.', 1, $target);
    }

    /**
     * Get the target name of a symbolic link.
     */
    public function getTargetName(): string
    {
        return \readlink($this->getStreamName());
    }

    /**
     * Create a link.
     */
    public static function create(string $name, string $target): bool
    {
        if (false !== \linkinfo($name)) {
            return true;
        }

        return \symlink($target, $name);
    }
}
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