<?php
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namespace app\common\library\storage\engine;
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use think\facade\Filesystem;
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use think\Image;
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use app\common\model\settings\Setting as SettingModel;
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use function Qiniu\thumbnail;
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/**
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* 本地文件驱动
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*/
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class Local extends Server
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{
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public function __construct()
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{
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parent::__construct();
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}
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/**
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* 上传图片文件
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*/
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public function upload()
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{
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return $this->isInternal ? $this->uploadByInternal() : $this->uploadByExternal();
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}
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/**
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* 外部上传(指用户上传,需验证文件类型、大小)
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*/
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private function uploadByExternal()
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{
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$saveName = '';
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// 验证文件并上传
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try{
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$saveName = Filesystem::disk('public')->putFile( '', $this->file);
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}catch (\Exception $e){
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log_write('文件上传异常:'.$e->getMessage());
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}
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return $saveName;
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}
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/**
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* 内部上传(指系统上传,信任模式)
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*/
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private function uploadByInternal()
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{
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// 上传目录
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$uplodDir = public_path() . '/uploads';
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// 要上传图片的本地路径
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$realPath = $this->getRealPath();
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if (!rename($realPath, "{$uplodDir}/$this->fileName")) {
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$this->error = 'upload write error';
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return false;
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}
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return true;
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}
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/**
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* 删除文件
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*/
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public function delete($fileName)
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{
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// 文件所在目录
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$filePath = public_path() . "/uploads/{$fileName}";
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return !file_exists($filePath) ?: unlink($filePath);
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}
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/**
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* 返回文件路径
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*/
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public function getFileName()
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{
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return $this->fileName;
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}
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/**
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* 生成缩略图（将原图复制到新路径，然后将原路径变为缩略图） by lyzflash
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*/
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public function createThumb($saveName, $is_original = false)
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{
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// 获取上传设置
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$config = SettingModel::getItem('storage');
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$image = Image::open(public_path() . '/uploads/' . $saveName);
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$width = $image->width();
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$max_width = $config['max_width'] ?: 750;
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// 图片宽度大于系统设置时才处理
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$original_path = '';
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if ($width > $max_width) {
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// 如果保留原图
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if ($is_original) {
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$original_path = date('Ymd') .'/'. $this->buildOriginalName(); // 原图文路径
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$image->save(public_path() . '/uploads/' . $original_path);
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}
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// 生成缩略图
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$image->thumb($max_width, $image->height())->save(public_path() . '/uploads/'. $saveName);
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}
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return $original_path; // 注意：返回的是原图的路径
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}
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/**
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* 生成原图文件名
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*/
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private function buildOriginalName()
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{
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// 要上传图片的本地路径
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$realPath = $this->file->getPathname();
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// 扩展名
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$ext = $this->file->getOriginalExtension();
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// 自动生成文件名
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return date('YmdHis') . substr(md5($realPath), 0, 6)
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. str_pad(rand(0, 9999), 6, '0', STR_PAD_LEFT) . ".{$ext}";
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}
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}
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