Cosapi::normalizerPath() - Code Metrics - Inspection of "Merge pull request #20 from takashiki/master" - freyo/flysystem-qcloud-cos-v3 - Measure and Improve Code Quality continuously with Scrutinizer

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Push — master ( 09d4ea...720e36 )

by frey
created 2017-05-12 07:09 UTC
Cosapi::normalizerPath() A

↳ Parent: Cosapi
Complexity

Conditions	4
Paths	6
Size

Total Lines	14
Code Lines	7
Duplication

Lines	0
Ratio	0 %
Code Coverage

Tests	10
CRAP Score	4
Importance

Changes
Metric	Value
cc	4
eloc	7
nc	6
nop	2
dl	0
loc	14
ccs	10
cts	10
cp	1
crap	4
rs	9.2
c	0
b	0
f	0
<?php


namespace Freyo\Flysystem\QcloudCOSv3\Client;

date_default_timezone_set('PRC');
class Cosapi
{
    //计算sign签名的时间参数
    const EXPIRED_SECONDS = 180;
    //512K
    const SLICE_SIZE_512K = 524288;
    //1M
    const SLICE_SIZE_1M = 1048576;
    //2M
    const SLICE_SIZE_2M = 2097152;
    //3M
    const SLICE_SIZE_3M = 3145728;
    //20M 大于20M的文件需要进行分片传输
    const MAX_UNSLICE_FILE_SIZE = 20971520;
    //失败尝试次数
    const MAX_RETRY_TIMES = 3;
    //返回的错误码
    const COSAPI_PARAMS_ERROR = -1;
    const COSAPI_NETWORK_ERROR = -2;
    //HTTP请求超时时间
    private static $timeout = 60;

    /*
     * 设置HTTP请求超时时间
     * @param  int  $timeout  超时时长
     */
    public static function setTimeout($timeout = 60)
    {
        if (!is_int($timeout) || $timeout < 0) {
            return false;
        }

        self::$timeout = $timeout;

        return true;
    }

    /**
     * 上传文件,自动判断文件大小,如果小于20M则使用普通文件上传,大于20M则使用分片上传.
     *
     * @param string $bucketName bucket名称
     * @param string $srcPath    本地文件路径
     * @param string $dstPath    上传的文件路径
     * @param string $bizAttr    文件属性
     * @param string $sliceSize  分片大小(512k,1m,2m,3m)，默认:1m
     * @param string $insertOnly 同名文件是否覆盖
     *
     * @return array
     */
    public static function upload($bucketName, $srcPath, $dstPath,
                $bizAttr = null, $sliceSize = null, $insertOnly = null)
    {
        if (!file_exists($srcPath)) {

            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'file '.$srcPath.' not exists',
                    'data'    => [], ];
        }

        $dstPath = '/'.ltrim($dstPath, '/');

        //文件大于20M则使用分片传输
        if (filesize($srcPath) < self::MAX_UNSLICE_FILE_SIZE) {
            return self::uploadfile($bucketName, $srcPath, $dstPath, $bizAttr, $insertOnly);
        } else {
            $sliceSize = self::getSliceSize($sliceSize);

            return self::upload_slice($bucketName, $srcPath, $dstPath, $bizAttr, $sliceSize, $insertOnly);
        }
    }

    /**
     * 创建目录.
     *
     * @param string $bucketName bucket名称
     * @param string $path       目录路径
     * @param string $bizAttr    目录属性
     *
     * @return array
     */
    public static function createFolder($bucketName, $path, $bizAttr = null)
    {
        $path = self::normalizerPath($path, true);
        $path = self::cosUrlEncode($path);
        $expired = time() + self::EXPIRED_SECONDS;
        $url = self::generateResUrl($bucketName, $path);
        $sign = Auth::appSign($expired, $bucketName);

        $data = [
            'op'       => 'create',
            'biz_attr' => (isset($bizAttr) ? $bizAttr : ''),
        ];

        $data = json_encode($data);

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                'Authorization:'.$sign,
                'Content-Type: application/json',
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 目录列表.
     *
     * @param string $bucketName bucket名称
     * @param string $path       目录路径，sdk会补齐末尾的 '/'
     * @param int    $num        拉取的总数
     * @param string $pattern    eListBoth,ListDirOnly,eListFileOnly  默认both
     * @param int    $order      默认正序(=0), 填1为反序,
     * @param string $context    透传字段,用于翻页,前端不需理解,需要往前/往后翻页则透传回来
     *
     * @return array
     */
    public static function listFolder(

                    $bucketName, $path, $num = 20,
                    $pattern = 'eListBoth', $order = 0,
                    $context = null)
    {
        $path = self::normalizerPath($path, true);

        return self::listBase($bucketName, $path, $num,
                $pattern, $order, $context);
    }

    /**
     * 目录列表(前缀搜索).
     *
     * @param string $bucketName bucket名称
     * @param string $prefix     列出含此前缀的所有文件
     * @param int    $num        拉取的总数
     * @param string $pattern    eListBoth(默认),ListDirOnly,eListFileOnly
     * @param int    $order      默认正序(=0), 填1为反序,
     * @param string $context    透传字段,用于翻页,前端不需理解,需要往前/往后翻页则透传回来
     *
     * @return array
     */
    public static function prefixSearch(

                    $bucketName, $prefix, $num = 20,
                    $pattern = 'eListBoth', $order = 0,
                    $context = null)
    {
        $path = self::normalizerPath($prefix);

        return self::listBase($bucketName, $path, $num,
                $pattern, $order, $context);
    }

    /**
     * 目录更新.
     *
     * @param string $bucketName bucket名称
     * @param string $path       文件夹路径,SDK会补齐末尾的 '/'
     * @param string $bizAttr    目录属性
     *
     * @return array
     */
    public static function updateFolder($bucketName, $path, $bizAttr = null)
    {
        $path = self::normalizerPath($path, true);

        return self::updateBase($bucketName, $path, $bizAttr);
    }

    /**
     * 查询目录信息.
     *
     * @param string $bucketName bucket名称
     * @param string $path       目录路径
     *
     * @return array
     */
    public static function statFolder($bucketName, $path)
    {
        $path = self::normalizerPath($path, true);

        return self::statBase($bucketName, $path);
    }

    /**
     * 删除目录.
     *
     * @param string $bucketName bucket名称
     * @param string $path       目录路径
     *                           注意不能删除bucket下根目录/
     *
     * @return array
     */
    public static function delFolder($bucketName, $path)
    {
        $path = self::normalizerPath($path, true);

        return self::delBase($bucketName, $path);
    }

    /**
     * 更新文件.
     *
     * @param string $bucketName             bucket名称
     * @param string $path                   文件路径
     * @param null   $bizAttr
     * @param string $authority              :  eInvalid(继承Bucket的读写权限)/eWRPrivate(私有读写)/eWPrivateRPublic(公有读私有写)
     * @param array  $customer_headers_array 携带的用户自定义头域,包括
     *                                       'Cache-Control' => '*'
     *                                       'Content-Type' => '*'
     *                                       'Content-Disposition' => '*'
     *                                       'Content-Language' => '*'
     *                                       'x-cos-meta-自定义内容' => '*'
     *
     * @return array
     */
    public static function update($bucketName, $path,
                    $bizAttr = null, $authority = null, $customer_headers_array = null)
    {
        $path = self::normalizerPath($path);

        return self::updateBase($bucketName, $path, $bizAttr, $authority, $customer_headers_array);
    }

    /**
     * 移动(重命名)文件.
     *
     * @param string $bucketName  bucket名称
     * @param string $srcPath     源文件路径
     * @param string $dstPath     目的文件名(可以是单独文件名也可以是带目录的文件名)
     * @param int    $toOverWrite 是否覆盖(当目的文件名已经存在同名文件时是否覆盖)
     *
     * @return array
     */
    public static function move($bucketName, $srcPath, $dstPath, $toOverWrite = 0)
    {
        $srcPath = self::normalizerPath($srcPath);
        $dstPath = self::normalizerPath($dstPath);

        $srcPath = self::cosUrlEncode($srcPath);
        $url = self::generateResUrl($bucketName, $srcPath);
        $sign = Auth::appSign_once($srcPath, $bucketName);

        $data = [
            'op'            => 'move',
            'dest_fileid'   => $dstPath,
            'to_over_write' => $toOverWrite,
        ];

        $data = json_encode($data);

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                    'Authorization: '.$sign,
                    'Content-Type: application/json',
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 查询文件信息.
     *
     * @param string $bucketName bucket名称
     * @param string $path       文件路径
     *
     * @return array
     */
    public static function stat($bucketName, $path)
    {
        $path = self::normalizerPath($path);

        return self::statBase($bucketName, $path);
    }

    /**
     * 删除文件.
     *
     * @param string $bucketName
     * @param string $path       文件路径
     *
     * @return array
     */
    public static function delFile($bucketName, $path)
    {
        $path = self::normalizerPath($path);

        return self::delBase($bucketName, $path);
    }

    /**
     * 内部方法, 上传文件.
     *
     * @param string $bucketName bucket名称
     * @param string $srcPath    本地文件路径
     * @param string $dstPath    上传的文件路径
     * @param string $bizAttr    文件属性
     * @param int    $insertOnly 是否覆盖同名文件:0 覆盖,1:不覆盖
     *
     * @return array
     */
    private static function uploadfile($bucketName, $srcPath, $dstPath, $bizAttr = null, $insertOnly = null)
    {
        $srcPath = realpath($srcPath);
        $dstPath = self::cosUrlEncode($dstPath);

        if (filesize($srcPath) >= self::MAX_UNSLICE_FILE_SIZE) {

            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'file '.$srcPath.' larger then 20M, please use upload_slice interface',
                    'data'    => [], ];
        }

        $expired = time() + self::EXPIRED_SECONDS;
        $url = self::generateResUrl($bucketName, $dstPath);
        $sign = Auth::appSign($expired, $bucketName);
        $sha1 = hash_file('sha1', $srcPath);

        $data = [
            'op'       => 'upload',
            'sha'      => $sha1,
            'biz_attr' => (isset($bizAttr) ? $bizAttr : ''),
        ];

        if (function_exists('curl_file_create')) {
            $data['filecontent'] = curl_file_create($srcPath);
        } else {
            $data['filecontent'] = '@'.$srcPath;
        }

        if (isset($insertOnly) && strlen($insertOnly) > 0) {
            $data['insertOnly'] = (($insertOnly == 0 || $insertOnly == '0') ? 0 : 1);
        }

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                'Authorization:'.$sign,
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 内部方法,上传文件.
     *
     * @param string $bucketName bucket名称
     * @param string $srcPath    本地文件路径
     * @param string $dstPath    上传的文件路径
     * @param string $bizAttr    文件属性
     * @param string $sliceSize  分片大小
     * @param int    $insertOnly 是否覆盖同名文件:0 覆盖,1:不覆盖
     *
     * @return array
     */
    private static function upload_slice(
        $bucketName, $srcPath, $dstPath,
        $bizAttr = null, $sliceSize = null, $insertOnly = null)
    {
        $srcPath = realpath($srcPath);
        $fileSize = filesize($srcPath);
        $dstPath = self::cosUrlEncode($dstPath);

        $expired = time() + self::EXPIRED_SECONDS;
        $url = self::generateResUrl($bucketName, $dstPath);
        $sign = Auth::appSign($expired, $bucketName);
        $sha1 = hash_file('sha1', $srcPath);

        $ret = self::upload_prepare(
                $fileSize, $sha1, $sliceSize,
                $sign, $url, $bizAttr, $insertOnly);

        if ($ret['code'] != 0) {
            return $ret;
        }

        if (isset($ret['data'])
                && isset($ret['data']['url'])) {
            //秒传命中，直接返回了url
            return $ret;
        }

        $sliceSize = $ret['data']['slice_size'];
        if ($sliceSize > self::SLICE_SIZE_3M ||
            $sliceSize <= 0) {
            $ret['code'] = self::COSAPI_PARAMS_ERROR;
            $ret['message'] = 'illegal slice size';

            return $ret;
        }

        $session = $ret['data']['session'];
        $offset = $ret['data']['offset'];

        $sliceCnt = ceil($fileSize / $sliceSize);
        // expired seconds for one slice mutiply by slice count
        // will be the expired seconds for whole file
        $expired = time() + (self::EXPIRED_SECONDS * $sliceCnt);
        $sign = Auth::appSign($expired, $bucketName);

        $ret = self::upload_data(
                $fileSize, $sha1, $sliceSize,
                $sign, $url, $srcPath,
                $offset, $session);

        return $ret;
    }

    /**
     * 第一个分片控制消息.
     *
     * @param string $fileSize   文件大小
     * @param string $sha1       文件sha值
     * @param string $sliceSize  分片大小
     * @param string $sign       签名
     * @param string $url        URL
     * @param string $bizAttr    文件属性
     * @param string $insertOnly 同名文件是否覆盖
     *
     * @return array
     */
    private static function upload_prepare(
        $fileSize, $sha1, $sliceSize,
        $sign, $url, $bizAttr = null, $insertOnly = null)
    {
        $data = [
            'op'       => 'upload_slice',
            'filesize' => $fileSize,
            'sha'      => $sha1,
        ];

        if (isset($bizAttr) && strlen($bizAttr)) {
            $data['biz_attr'] = $bizAttr;
        }

        if (isset($insertOnly)) {
            $data['insertOnly'] = (($insertOnly == 0) ? 0 : 1);
        }

        if ($sliceSize <= self::SLICE_SIZE_3M) {
            $data['slice_size'] = $sliceSize;
        } else {
            $data['slice_size'] = self::SLICE_SIZE_3M;
        }

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                'Authorization:'.$sign,
            ],
        ];

        $ret = self::sendRequest($req);

        return $ret;
    }

    /**
     * 分片上传.
     *
     * @param int    $fileSize  文件大小
     * @param string $sha1      文件sha值
     * @param int    $sliceSize 文件分片大小
     * @param string $sign      签名
     * @param string $url       url
     * @param string $srcPath   源文件路径
     * @param int    $offset    文件偏移offset
     * @param string $session   session
     *
     * @return array
     */
    private static function upload_data(
            $fileSize, $sha1, $sliceSize,
            $sign, $url, $srcPath,
            $offset, $session)
    {
        while ($fileSize > $offset) {
            $filecontent = file_get_contents(
                    $srcPath, false, null,
                    $offset, $sliceSize);

            if ($filecontent === false) {

                return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'read file '.$srcPath.' error',
                    'data'    => [],
                ];
            }

            $boundary = '---------------------------'.substr(md5(mt_rand()), 0, 10);
            $data = self::generateSliceBody(
                    $filecontent, $offset, $sha1,
                    $session, basename($srcPath), $boundary);

            $req = [
                'url'     => $url,
                'method'  => 'post',
                'timeout' => self::$timeout,
                'data'    => $data,
                'header'  => [
                    'Authorization:'.$sign,
                    'Content-Type: multipart/form-data; boundary='.$boundary,
                ],
            ];

            $retry_times = 0;
            do {
                $ret = self::sendRequest($req);
                if ($ret['code'] == 0) {
                    break;
                }
                $retry_times++;
            } while ($retry_times < self::MAX_RETRY_TIMES);

            if ($ret['code'] != 0) {
                return $ret;
            }

            if ($ret['data']['session']) {
                $session = $ret['data']['session'];
            }

            $offset += $sliceSize;
        }

        return $ret;
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
    }

    /**
     * 构造分片body体.
     *
     * @param string $fileContent 文件内容
     * @param string $offset      文件偏移
     * @param string $sha         文件sha值
     * @param string $session     session
     * @param string $fileName    文件名
     * @param string $boundary    分隔符
     *
     * @return string
     */
    private static function generateSliceBody(
            $fileContent, $offset, $sha,

            $session, $fileName, $boundary)
    {
        $formdata = '';

        $formdata .= '--'.$boundary."\r\n";
        $formdata .= "content-disposition: form-data; name=\"op\"\r\n\r\nupload_slice\r\n";

        $formdata .= '--'.$boundary."\r\n";
        $formdata .= "content-disposition: form-data; name=\"offset\"\r\n\r\n".$offset."\r\n";

        $formdata .= '--'.$boundary."\r\n";
        $formdata .= "content-disposition: form-data; name=\"session\"\r\n\r\n".$session."\r\n";

        $formdata .= '--'.$boundary."\r\n";
        $formdata .= 'content-disposition: form-data; name="fileContent"; filename="'.$fileName."\"\r\n";
        $formdata .= "content-type: application/octet-stream\r\n\r\n";

        $data = $formdata.$fileContent."\r\n--".$boundary."--\r\n";

        return $data;
    }

    /**
     * 内部公共函数.
     *
     * @param string $bucketName bucket名称
     * @param string $path       文件夹路径
     * @param int    $num        拉取的总数
     * @param string $pattern    eListBoth(默认),ListDirOnly,eListFileOnly
     * @param int    $order      默认正序(=0), 填1为反序,
     * @param string $context    在翻页查询时候用到
     *
     * @return array
     */
    private static function listBase(
                    $bucketName, $path, $num = 20,
                    $pattern = 'eListBoth', $order = 0, $context = null)
    {
        $path = self::cosUrlEncode($path);
        $expired = time() + self::EXPIRED_SECONDS;
        $url = self::generateResUrl($bucketName, $path);
        $sign = Auth::appSign($expired, $bucketName);

        $data = [
            'op' => 'list',
        ];

        if (self::isPatternValid($pattern) == false) {

            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'parameter pattern invalid',
                ];
        }
        $data['pattern'] = $pattern;

        if ($order != 0 && $order != 1) {
            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'parameter order invalid',
            ];
        }
        $data['order'] = $order;

        if ($num < 0 || $num > 199) {
            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'parameter num invalid, num need less then 200',
            ];
        }
        $data['num'] = $num;

        if (isset($context)) {
            $data['context'] = $context;
        }

        $url = $url.'?'.http_build_query($data);

        $req = [
            'url'     => $url,
            'method'  => 'get',
            'timeout' => self::$timeout,
            'header'  => [
                'Authorization:'.$sign,
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 内部公共方法(更新文件和更新文件夹).
     *
     * @param string $bucketName           bucket名称
     * @param string $path                 路径
     * @param string $bizAttr              文件/目录属性
     * @param string $authority            :  eInvalid/eWRPrivate(私有)/eWPrivateRPublic(公有读写)
     * @param array  $custom_headers_array 携带的用户自定义头域,包括
     *                                     'Cache-Control' => '*'
     *                                     'Content-Type' => '*'
     *                                     'Content-Disposition' => '*'
     *                                     'Content-Language' => '*'
     *                                     'x-cos-meta-自定义内容' => '*'
     *
     * @return array|mixed
     */
    private static function updateBase($bucketName, $path,
                    $bizAttr = null, $authority = null, $custom_headers_array = null)
    {
        $path = self::cosUrlEncode($path);

        $url = self::generateResUrl($bucketName, $path);
        $sign = Auth::appSign_once(
                $path, $bucketName);

        $data = [
            'op' => 'update',
        ];

        $flag = 0;
        if (isset($bizAttr)) {
            $data['biz_attr'] = $bizAttr;
            $flag = $flag | 0x01;
        }

        if (isset($authority) && strlen($authority) > 0) {
            if (self::isAuthorityValid($authority) == false) {

                return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'parameter authority invalid',
                    ];
            }

            $data['authority'] = $authority;
            $flag = $flag | 0x80;
        }

        if (isset($custom_headers_array)) {
            $data['custom_headers'] = [];
            self::add_customer_header($data['custom_headers'], $custom_headers_array);
            $flag = $flag | 0x40;
        }

        if ($flag != 0 && $flag != 1) {
            $data['flag'] = $flag;
        }

        $data = json_encode($data);

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                'Authorization:'.$sign,
                'Content-Type: application/json',
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 内部方法.
     *
     * @param string $bucketName bucket名称
     * @param string $path       文件/目录路径
     *
     * @return array
     */
    private static function statBase($bucketName, $path)
    {
        $path = self::cosUrlEncode($path);
        $expired = time() + self::EXPIRED_SECONDS;
        $url = self::generateResUrl($bucketName, $path);
        $sign = Auth::appSign($expired, $bucketName);

        $data = [
            'op' => 'stat',
        ];

        $url = $url.'?'.http_build_query($data);

        $req = [
            'url'     => $url,
            'method'  => 'get',
            'timeout' => self::$timeout,
            'header'  => [
                'Authorization:'.$sign,
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 内部私有方法.
     *
     * @param string $bucketName bucket名称
     * @param string $path       文件/目录路径路径
     *
     * @return array
     */
    private static function delBase($bucketName, $path)
    {
        if ($path == '/') {
            return [
                    'code'    => self::COSAPI_PARAMS_ERROR,
                    'message' => 'can not delete bucket using api! go to http://console.qcloud.com/cos to operate bucket',
                    ];
        }

        $path = self::cosUrlEncode($path);

        $url = self::generateResUrl($bucketName, $path);
        $sign = Auth::appSign_once(
                $path, $bucketName);

        $data = [
            'op' => 'delete',
        ];

        $data = json_encode($data);

        $req = [
            'url'     => $url,
            'method'  => 'post',
            'timeout' => self::$timeout,
            'data'    => $data,
            'header'  => [
                'Authorization:'.$sign,
                'Content-Type: application/json',
            ],
        ];

        return self::sendRequest($req);
    }

    /**
     * 内部公共方法, 路径编码
     *
     * @param string $path 待编码路径
     *
     * @return mixed
     */
    private static function cosUrlEncode($path)
    {
        return str_replace('%2F', '/', rawurlencode($path));
    }

    /**
     * 内部公共方法, 构造URL.
     *
     * @param string $bucketName
     * @param string $dstPath
     *
     * @return string
     */
    private static function generateResUrl($bucketName, $dstPath)
    {
        return Conf::API_COSAPI_END_POINT.Conf::getAppId().'/'.$bucketName.$dstPath;
    }

    /**
     * 内部公共方法, 发送消息.
     *
     * @param array $req
     *
     * @return array
     */
    private static function sendRequest($req)
    {
        $rsp = Http::send($req);

        $ret = json_decode($rsp, true);

        if ($ret) {
            if (0 === $ret['code']) {
                return $ret;
            } else {
                return [
                    'code'    => $ret['code'],
                    'message' => $ret['message'],
                    'data'    => [],
                ];
            }
        } else {
            return [
                'code'    => self::COSAPI_NETWORK_ERROR,
                'message' => $rsp,
                'data'    => [],
            ];
        }
    }

    /**
     * 设置分片大小.
     *
     * @param string $sliceSize
     *
     * @return int
     */
    private static function getSliceSize($sliceSize)
    {
        $size = self::SLICE_SIZE_1M;
        if (!isset($sliceSize)) {
            return $size;
        }

        if ($sliceSize <= self::SLICE_SIZE_512K) {
            $size = self::SLICE_SIZE_512K;
        } elseif ($sliceSize <= self::SLICE_SIZE_1M) {
            $size = self::SLICE_SIZE_1M;
        } elseif ($sliceSize <= self::SLICE_SIZE_2M) {
            $size = self::SLICE_SIZE_2M;
        } else {
            $size = self::SLICE_SIZE_3M;
        }

        return $size;
    }

    /**
     * 内部方法, 规整文件路径.
     *
     * @param string $path     文件路径
     * @param bool   $isfolder 是否为文件夹
     *
     * @return string
     */
    private static function normalizerPath($path, $isfolder = false)
    {
        if (preg_match('/^\//', $path) == 0) {
            $path = '/'.$path;
        }

        if ($isfolder == true) {

            if (preg_match('/\/$/', $path) == 0) {
                $path = $path.'/';
            }
        }

        return $path;
    }

    /**
     * 判断authority值是否正确.
     *
     * @param string $authority
     *
     * @return bool
     */
    private static function isAuthorityValid($authority)
    {
        if ($authority == 'eInvalid'
        || $authority == 'eWRPrivate'
        || $authority == 'eWPrivateRPublic') {
            return true;
        }

        return false;
    }

    /**
     * 判断pattern值是否正确.
     *
     *
     * @param string $pattern
     *
     * @return bool
     */
    private static function isPatternValid($pattern)
    {
        if ($pattern == 'eListBoth'
        || $pattern == 'eListDirOnly'
        || $pattern == 'eListFileOnly') {
            return true;
        }

        return false;
    }

    /**
     * 判断是否符合自定义属性.
     *
     * @param string $key
     *
     * @return bool
     */
    private static function isCustomer_header($key)
    {
        if ($key == 'Cache-Control'
        || $key == 'Content-Type'
        || $key == 'Content-Disposition'
        || $key == 'Content-Language'
        || substr($key, 0, strlen('x-cos-meta-')) == 'x-cos-meta-') {
            return true;
        }

        return false;
    }

    /**
     * 增加自定义属性到data中.
     *
     * @param array $data
     * @param array $customer_headers_array
     */
    private static function add_customer_header(&$data, &$customer_headers_array)
    {
        if (count($customer_headers_array) < 1) {
            return;
        }
        foreach ($customer_headers_array as $key=>$value) {
            if (self::isCustomer_header($key)) {
                $data[$key] = $value;
            }
        }
    }
}

freyo / flysystem-qcloud-cos-v3

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