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101 lines
3.3 KiB
101 lines
3.3 KiB
<?php
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// +----------------------------------------------------------------------
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// | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
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// +----------------------------------------------------------------------
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// | Copyright (c) 2016~2022 https://www.crmeb.com All rights reserved.
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// +----------------------------------------------------------------------
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// | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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// +----------------------------------------------------------------------
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// | Author: CRMEB Team <admin@crmeb.com>
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// +----------------------------------------------------------------------
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namespace crmeb\services;
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use think\exception\ValidateException;
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class DownloadImageService
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{
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//存储位置
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protected $path = 'attach';
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protected $rules = ['thumb', 'thumbWidth', 'thumHeight', 'path'];
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/**
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* 获取即将要下载的图片扩展名
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* @param string $url
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* @param string $ex
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* @return array|string[]
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*/
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public function getImageExtname($url = '', $ex = 'jpg')
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{
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$_empty = ['file_name' => '', 'ext_name' => $ex];
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if (!$url) return $_empty;
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if (strpos($url, '?')) {
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$_tarr = explode('?', $url);
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$url = trim($_tarr[0]);
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}
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$arr = explode('.', $url);
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if (!is_array($arr) || count($arr) <= 1) return $_empty;
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$ext_name = trim($arr[count($arr) - 1]);
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$ext_name = !$ext_name ? $ex : $ext_name;
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return ['file_name' => md5($url) . '.' . $ext_name, 'ext_name' => $ext_name];
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}
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/**
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* @param $url
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* @param string $name
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* @param int $upload_type
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* @return mixed
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* @author xaboy
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* @day 2020/8/1
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*/
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public function downloadImage($url, $path = 'def', $name = '', $upload_type = null)
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{
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if (!$name) {
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//TODO 获取要下载的文件名称
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$downloadImageInfo = $this->getImageExtname($url);
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$name = $downloadImageInfo['file_name'];
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if (!$name) throw new ValidateException('上传图片不存在');
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}
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checkSuffix($url);
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ob_start();
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readfile($url);
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$content = ob_get_contents();
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ob_end_clean();
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$size = strlen(trim($content));
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if (!$content || $size <= 2) throw new ValidateException('图片流获取失败');
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$upload = UploadService::create($upload_type);
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if ($upload->to($path)->stream($content, $name) === false) {
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throw new ValidateException('图片下载失败');
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}
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$imageInfo = $upload->getUploadInfo();
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$date['path'] = $imageInfo['dir'];
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$date['name'] = $imageInfo['name'];
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$date['size'] = $imageInfo['size'];
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$date['mime'] = $imageInfo['type'];
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return $date;
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}
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/**
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* @param $name
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* @param $arguments
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* @return $this
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*/
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public function __call($name, $arguments)
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{
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if (in_array($name, $this->rules)) {
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if ($name === 'path') {
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$this->{$name} = $arguments[0] ?? 'attach';
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} else {
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$this->{$name} = $arguments[0] ?? null;
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}
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return $this;
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} else {
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throw new \RuntimeException('Method does not exist' . __CLASS__ . '->' . $name . '()');
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}
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}
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}
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