分享OSS云环境文件上传与签名的重点代码

学习笔记 03/12 Laravel

oss文件上传与签名

相信大家日常开发中，经常使用到云文件的上传与下载等功能，而国内常用的阿里云和华为云，laravel 自带的 Storage 默认并未进行友好支持。

刚好最近云迁移过程中的各种恶心，主要涉及上传与签名接口。特地记录下 OSS 云环境文件上传与签名的重点代码，以供参考。

相关包安装命令：

// 阿里云oss
composer require aliyuncs/oss-sdk-php
// 华为云obs
composer require obs/esdk-obs-php

需注意包版本，是否与 php 版本适用。

.env 配置项：

# OSS相关配置
OSS_DRIVER=HW_OBS
#华为OBS
OSS_HW_ENDPOINT=https://obs.cn-east-3.myhuaweicloud.com
OSS_HW_KEY=ME0AVBTNJTSJB2LH0EGI
OSS_HW_SECRET=eCGffrwdx3Rt5QEmKbtEvruvGgg1mCUjMsnHfjWo
OSS_HW_BUCKET=pub-obs-test-1
#阿里云
OSS_ENDPOINT=https://oss-cn-hangzhou.aliyuncs.com
OSS_KEYID=LTAI4Ftno9DsfiVHADX73osa
OSS_KEYSECRET=vo9KuqgaDN727eOOz1tDg77Egeg7wE
OSS_BUCKET=xgimi-ipr

代码：

1. 接口声明

<?php
namespace AppServiceOSS;
interface IOSS
{
    /**
     * 上传
     *
     * @param $fullFileName
     * @param $filePath
     * @return mixed
     */
    public function publicUpload($fullFileName, $filePath);
    /**
     * url验签、下载
     *
     * @param $fullFileName | 含前缀的完整url文件名
     * @param $expires      |   过期时效
     * @return mixed
     */
    public function getUrl($fullFileName, $expires);
    /**
     * 可替换url域名
     *
     * @param $url
     * @return mixed
     */
    public function replaceUrl($url);
}

2. 阿里 OSS 实现

<?php
namespace AppServiceOSS;
use OSSOssClient;
class AliOSS implements IOSS
{
    private $endPoint;
    private $keyId;
    private $secret;
    private $bucket;
    private $ossClient;
    private $expires = 3 * 24 * 3600;
    private $aliHost = &#39;&#39;;
    private $myHost = &#39;&#39;;
    public function __construct()
    {
        $this->endPoint = env("OSS_ENDPOINT");
        $this->keyId = env("OSS_KEYID");
        $this->secret = env("OSS_KEYSECRET");
        $this->bucket = env("OSS_BUCKET");
        try {
            $this->ossClient = new OssClient($this->keyId, $this->secret, $this->endPoint);
        } catch (Exception $e) {
        }
    }
    /**
     * 上传
     *
     * @param $fullFileName
     * @param $filePath
     * @return mixed
     * @throws Exception
     */
    public function publicUpload($fullFileName, $filePath)
    {
        return $this->ossClient->uploadFile($this->bucket, $fullFileName, $filePath);
    }
    /**
     * url验签、下载
     *
     * @param $fullFileName
     * @param $expires |   过期时效
     * @return mixed
     * @throws Exception
     */
    public function getUrl($fullFileName, $expires)
    {
        $expires = $expires ? $expires : $this->expires;
        $signUrl = $this->ossClient->signUrl($this->bucket, $fullFileName, $expires);
        return $signUrl;
    }
    /**
     * 替换url域名
     *
     * @param $url
     * @return mixed
     */
    public function replaceUrl($url)
    {
        return str_replace($this->aliHost, $this->myHost, $url);
    }
}

3. 华为 OBS 实现

<?php
namespace AppServiceOSS;
use ObsObsClient;
class HuaweiOBS implements IOSS
{
    private $endPoint;
    private $key;
    private $secret;
    private $bucket;
    private $obsClient;
    private $expires = 3 * 24 * 3600;
    private $hwHost = &#39;&#39;;
    private $myHost = &#39;&#39;;
    public function __construct()
    {
        $this->endPoint = env("OSS_HW_ENDPOINT");
        $this->key = env("OSS_HW_KEY");
        $this->secret = env("OSS_HW_SECRET");
        $this->bucket = env("OSS_HW_BUCKET");
        try {
            $this->obsClient = new ObsClient([&#39;key&#39; => $this->key, &#39;secret&#39; => $this->secret, &#39;endpoint&#39; => $this->endPoint]);
        } catch (Exception $e) {
        }
    }
    /**
     * 上传
     *
     * @param $fullFileName
     * @param $filePath
     * @return mixed
     */
    public function publicUpload($fullFileName, $filePath)
    {
        $res = $this->obsClient->putObject([
            &#39;Bucket&#39; => $this->bucket,
            &#39;Key&#39; => $fullFileName,
            &#39;SourceFile&#39; => $filePath
        ]);
        return $res;
    }
    /**
     * url验签、下载
     *
     * @param $fullFileName
     * @param $expires |   过期时效
     * @return mixed
     * @throws Exception
     */
    public function getUrl($fullFileName, $expires)
    {
        $expires = $expires ? $expires : $this->expires;
        // 生成下载对象的带授权信息的URL
        $res = $this->obsClient->createSignedUrl([
            &#39;Method&#39; => &#39;GET&#39;,
            &#39;Bucket&#39; => $this->bucket,
            &#39;Key&#39; => $fullFileName,
            &#39;Expires&#39; => $expires
        ]);
        return $res[&#39;SignedUrl&#39;];
    }
    /**
     * 替换url域名
     *
     * @param $url
     * @return mixed
     */
    public function replaceUrl($url)
    {
        return str_replace($this->hwHost, $this->myHost, $url);
    }
}

Demo: 业务逻辑 + OSS 类

<?php
namespace AppService;
class UploadFile
{
    /**
     * 文件上传 带签名访问
     *
     * @param        $files
     * @param string $prefix
     * @return array 
     * @throws Exception
     */
    public static function upload($files, $prefix = &#39;&#39;)
    {
        if (empty($files)) {
            return [&#39;ok&#39; => false, &#39;message&#39; => &#39;请上传文件！&#39;];
        }
        if (is_array($files)) {
            $pics = [];
            foreach ($files as $key => $file) {
                if ($file->isValid()) {
                    $name = $file->getClientOriginalName();
                    $fullName = OSS::getFullFileName($name, $prefix);
                    $ret = OSS::publicUpload($fullName, $file, $prefix);
                    if ($ret) {
                        $url = OSS::getUrl($fullName);
                        $url = OSS::replaceUrl($url);
                        $pics[] = [&#39;name&#39; => $name, &#39;url&#39; => $url, &#39;file_name&#39; => $fullName];
                    }
                } else {
                    return [&#39;ok&#39; => false, &#39;message&#39; => &#39;无效文件！&#39;];
                }
            }
            if (count($pics) > 0) {
                return [&#39;ok&#39; => true, &#39;data&#39; => $pics];
            }
        } else {
            $name = $files->getClientOriginalName();
            $fullName = OSS::getFullFileName($name, $prefix);
            $ret = OSS::publicUpload($fullName, $files, $prefix);
            if ($ret) {
                $url = OSS::getUrl($fullName);
                $url = OSS::replaceUrl($url);
                return [&#39;ok&#39; => true, &#39;data&#39; => [&#39;name&#39; => $name, &#39;url&#39; => $url, &#39;file_name&#39; => $fullName]];
            } else {
                return [&#39;ok&#39; => false, &#39;message&#39; => &#39;无效文件！&#39;];
            }
        }
    }
}

<?php
namespace AppService;
use AppServiceOSSAliOSS;
use AppServiceOSSHuaweiOBS;
use Exception;
class OSS
{
    const DEFAULT_DRIVER = &#39;HW_OBS&#39;;
    const OSS_PREFIX = &#39;oss/&#39;;
    public $OSSService;
    /**
     * 初始化 service
     */
    public function __construct()
    {
        if (env(&#39;OSS_DRIVER&#39;) === self::DEFAULT_DRIVER) {
            $this->OSSService = new HuaweiOBS();
        } else {
            $this->OSSService = new AliOSS();
        }
    }
    public static function getInstance()
    {
        return new self();
    }
    /**
     * 使用外网上传文件
     *
     * @param $fullName
     * @param $filePath
     * @param $prefix
     * @return mixed
     * @throws Exception
     */
    public static function publicUpload($fullName, $filePath, $prefix)
    {
        return self::getInstance()->OSSService->publicUpload($fullName, $filePath);
    }
    /**
     * 获取oss图片url
     *
     * @param $fullName
     * @param $expires |    过期时效
     * @return string
     * @throws Exception
     */
    public static function getUrl($fullName, $expires = &#39;&#39;)
    {
        return self::getInstance()->OSSService->getUrl($fullName, $expires);
    }
    /**
     * 替换url域名
     *
     * @param $url
     * @return mixed
     */
    public static function replaceUrl($url)
    {
        return self::getInstance()->OSSService->replaceUrl($url);
    }
    /**
     * 获取完整的文件名含路径
     *
     * @param $fileName
     * @param $prefix
     * @return string
     */
    public static function getFullFileName($fileName, $prefix)
    {
        return self::OSS_PREFIX . $prefix . self::setFileName($fileName);
    }
    /**
     * 设置新的文件名(重命名规则)
     *
     * @param $fileName
     * @return string
     */
    public static function setFileName($fileName)
    {
        $nameArray = explode(&#39;.&#39;, $fileName);
        $extension = $nameArray[count($nameArray) - 1];
        $newName = date(&#39;Ymd&#39;) . &#39;/&#39; . date(&#39;YmdHis&#39;) . rand(10000, 99999) . &#39;.&#39; . $extension;
        return $newName;
    }
}

有时间可以对其进行功能接口补充，丰富更多云接口能力。

附：

composer 包：https://packagist.org/packages/league/flysystem

composer require league/flysystem

Spring mvn 包：https://spring-file-storage.xuyanwu.cn/#/ | https://spring-file-storage.xuyanwu.cn/#/

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