nextcloud/apps/files_external/3rdparty/aws-sdk-php/Aws/S3/Sync/KeyConverter.php

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<?php
/**
* Copyright 2010-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
namespace Aws\S3\Sync;
/**
* Converts filenames from one system to another
*/
class KeyConverter implements FilenameConverterInterface
{
/** @var string Directory separator for Amazon S3 keys */
protected $delimiter;
/** @var string Prefix to prepend to each Amazon S3 object key */
protected $prefix;
/** @var string Base directory to remove from each file path before converting to an object key */
protected $baseDir;
/**
* @param string $baseDir Base directory to remove from each converted name
* @param string $prefix Amazon S3 prefix
* @param string $delimiter Directory separator used with generated names
*/
public function __construct($baseDir = '', $prefix = '', $delimiter = '/')
{
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$this->baseDir = (string) $baseDir;
$this->prefix = $prefix;
$this->delimiter = $delimiter;
}
public function convert($filename)
{
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$key = $filename;
// Remove base directory from the key (only the first occurrence)
if ($this->baseDir && (false !== $pos = strpos($filename, $this->baseDir))) {
$key = substr_replace($key, '', $pos, strlen($this->baseDir));
}
// Replace Windows directory separators to become Unix style, and convert that to the custom dir separator
$key = str_replace('/', $this->delimiter, str_replace('\\', '/', $key));
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// Add the key prefix and remove double slashes that are not in the protocol (e.g. prefixed with ":")
$delim = preg_quote($this->delimiter);
$key = preg_replace(
"#(?<!:){$delim}{$delim}#",
$this->delimiter,
$this->prefix . $key
);
return $key;
}
}