225 lines
9.0 KiB
PHP
225 lines
9.0 KiB
PHP
<?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) 2016~2020 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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use think\Image;
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class DownloadImageService
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{
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//是否生成缩略图
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protected $thumb = false;
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//缩略图宽度
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protected $thumbWidth = 300;
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//缩略图高度
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protected $thumHeight = 300;
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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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* 下载图片
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* @param string $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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*/
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public function downloadImage(string $url, $name = '')
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{
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if (!$name) {
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// 获取要下载的文件名称
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$downloadImageInfo = $this->getImageExtname($url);
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$ext = $downloadImageInfo['ext_name'];
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$name = $downloadImageInfo['file_name'];
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if (!$name) throw new ValidateException('上传图片不存在');
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} else {
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$ext = $this->getImageExtname($name)['ext_name'];
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}
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if (!in_array($ext, ['png', 'jpg', 'jpeg', 'gif', 'webp', 'bpm', 'tif', 'pcx', 'tga', 'exif', 'fpx', 'svg', 'apng'])) {
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$headerArray = get_headers(str_replace('\\', '/', $url), true);
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if (is_array($headerArray['Content-Type']) && count($headerArray['Content-Type']) == 2) {
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$type = $headerArray['Content-Type'][1];
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} else {
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$type = $headerArray['Content-Type'];
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}
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if(!$type) throw new ValidateException('格式错误，文件后缀不允许');
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$img = explode('/',$type);
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if($img[0]!= 'image') throw new ValidateException('格式错误，文件后缀不允许');
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}
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if (strstr($url, 'http://') === false && strstr($url, 'https://') === false) {
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$url = 'http:' . $url;
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}
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$url = str_replace('https://', 'http://', $url);
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if ($this->path == 'attach') {
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$date_dir = date('Y') . DIRECTORY_SEPARATOR . date('m') . DIRECTORY_SEPARATOR . date('d');
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$to_path = $this->path . '/' . $date_dir;
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} else {
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$to_path = $this->path;
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}
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$upload = UploadService::init(1);
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if (!file_exists($upload->uploadDir($to_path) . '/' . $name)) {
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ob_start();
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readfile($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 || $size <= 2) throw new ValidateException('图片流获取失败');
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if ($upload->to($to_path)->down($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 = $upload->getDownloadInfo();
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$path = $imageInfo['dir'];
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if ($this->thumb) {
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Image::open(root_path() . 'public' . $path)->thumb($this->thumbWidth, $this->thumHeight)->save(root_path() . 'public' . $path);
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$this->thumb = false;
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}
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} else {
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$path = '/uploads/' . $to_path . '/' . $name;
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$imageInfo['name'] = $name;
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}
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$date['path'] = $path;
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$date['name'] = $imageInfo['name'];
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$date['size'] = $imageInfo['size'] ?? '';
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$date['mime'] = $imageInfo['type'] ?? '';
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$date['image_type'] = 1;
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$date['is_exists'] = false;
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return $date;
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}
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/**
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* 网络图片下载
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* @param $url
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* @param $name
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* @param $type
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* @param $timeout
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* @param $w
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* @param $h
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* @return array|string
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*/
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public function downloadOnlineImage($url = '', $name = '', $type = 0, $timeout = 30, $w = 0, $h = 0)
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{
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if (!strlen(trim($url))) return '';
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if (!strlen(trim($name))) {
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//TODO 获取要下载的文件名称
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$downloadImageInfo = $this->getImageExtname($url);
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$ext = $downloadImageInfo['ext_name'];
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$name = $downloadImageInfo['file_name'];
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if (!strlen(trim($name))) throw new ValidateException('上传图片不存在');
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} else {
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$ext = $this->getImageExtname($name)['ext_name'];
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}
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if (!in_array($ext, ['png', 'jpg', 'jpeg', 'gif', 'webp', 'bpm', 'tif', 'pcx', 'tga', 'exif', 'fpx', 'svg', 'apng'])) {
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$headerArray = get_headers(str_replace('\\', '/', $url), true);
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if (is_array($headerArray['Content-Type']) && count($headerArray['Content-Type']) == 2) {
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$contentType = $headerArray['Content-Type'][1];
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} else {
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$contentType = $headerArray['Content-Type'];
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}
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if(!$contentType) throw new ValidateException('格式错误，文件后缀不允许');
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$img = explode('/',$contentType);
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if($img[0]!= 'image') throw new ValidateException('格式错误，文件后缀不允许');
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}
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if (strstr($url, 'http://') === false && strstr($url, 'https://') === false) {
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$url = 'http:' . $url;
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}
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$url = str_replace('https://', 'http://', $url);
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if ($this->path == 'attach') {
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$date_dir = date('Y') . DIRECTORY_SEPARATOR . date('m') . DIRECTORY_SEPARATOR . date('d');
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$to_path = $this->path . '/' . $date_dir;
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} else {
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$to_path = $this->path;
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}
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//TODO 获取远程文件所采用的方法
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if ($type) {
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$ch = curl_init();
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curl_setopt($ch, CURLOPT_URL, $url);
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, false);
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curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
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curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); //TODO 跳过证书检查
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if (stripos($url, "https://") !== FALSE) curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2); //TODO 从证书中检查SSL加密算法是否存在
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curl_setopt($ch, CURLOPT_HTTPHEADER, array('user-agent:' . $_SERVER['HTTP_USER_AGENT']));
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if (ini_get('open_basedir') == '' && ini_get('safe_mode') == 'Off') curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);//TODO 是否采集301、302之后的页面
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$content = curl_exec($ch);
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curl_close($ch);
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} else {
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try {
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ob_start();
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if (substr($url, 0, 2) == '//') {
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$url = "https:" . $url;
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}
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readfile($url);
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$content = ob_get_contents();
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ob_end_clean();
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} catch (\Exception $e) {
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throw new ValidateException($e->getMessage());
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}
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}
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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_type = sys_config('upload_type', 1);
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$upload = UploadService::init($upload_type);
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if ($upload->to($to_path)->validate()->setAuthThumb(false)->stream($content, $name) === false) {
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throw new ValidateException($upload->getError());
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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'] = $imageInfo['type'];
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$date['image_type'] = $upload_type;
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$date['is_exists'] = false;
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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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