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98 lines
2.0 KiB
98 lines
2.0 KiB
<?php
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namespace app\common\library\storage\engine;
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use think\Exception;
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use think\Request;
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/**
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* 存储引擎抽象类
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* Class server
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* @package app\common\library\storage\drivers
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*/
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abstract class Server
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{
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/* @var $file \think\File */
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protected $file;
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protected $error;
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protected $fileName;
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protected $fileInfo;
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/**
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* 构造函数
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* Server constructor.
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*/
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protected function __construct()
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{
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}
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/**
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* 设置上传的文件信息
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* @param string $name
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* @throws Exception
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*/
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public function setUploadFile($name)
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{
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// 接收上传的文件
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$this->file = Request::instance()->file($name);
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if (empty($this->file)) {
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throw new Exception('未找到上传文件的信息');
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}
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// 生成保存文件名
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$this->fileName = $this->buildSaveName();
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// 文件信息
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$this->fileInfo = $this->file->getInfo();
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}
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/**
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* 文件上传
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* @return mixed
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*/
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abstract protected function upload();
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/**
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* 文件删除
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* @param $fileName
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* @return mixed
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*/
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abstract protected function delete($fileName);
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/**
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* 返回上传后文件路径
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* @return mixed
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*/
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abstract public function getFileName();
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/**
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* 返回文件信息
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* @return mixed
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*/
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public function getFileInfo()
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{
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return $this->fileInfo;
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}
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/**
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* 返回错误信息
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* @return mixed
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*/
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public function getError()
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{
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return $this->error;
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}
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/**
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* 生成保存文件名
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*/
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private function buildSaveName()
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{
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// 要上传图片的本地路径
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$realPath = $this->file->getRealPath();
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// 扩展名
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$ext = pathinfo($this->file->getInfo('name'), PATHINFO_EXTENSION);
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// 自动生成文件名
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return date('YmdHis') . substr(md5($realPath), 0, 5)
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. str_pad(rand(0, 9999), 4, '0', STR_PAD_LEFT) . '.' . $ext;
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}
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}
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