什么也不说了，直接找到UeditorController.php文件下的_get_remote_image函数进行修改，下面是这个文件的路径：

/vendor/thinkcmf/cmf-app/src/user/UeditorController.php

下面是我修改好的，你可以直接复制过去替换你的就可以了。

/**
     * 获取远程图片
     */
    private function _get_remote_image()
    {

        $source = $this->request->param('source');

        $item              = [
            "state"    => "",
            "url"      => "",
            "size"     => "",
            "title"    => "",
            "original" => "",
            "source"   => ""
        ];
        $date              = date("Ymd");
        $uploadSetting     = cmf_get_upload_setting();  
           
        //$uploadMaxFileSize = $uploadSetting["image"]['upload_max_filesize'];
        $uploadMaxFileSize = $uploadSetting['file_types']["image"]['upload_max_filesize'];
        $uploadMaxFileSize = empty($uploadMaxFileSize) ? 2048 : $uploadMaxFileSize;//默认2M
        $allowedExts       = explode(',', $uploadSetting['file_types']["image"]["extensions"]);
        //$strSavePath       = ROOT_PATH . 'public' . DIRECTORY_SEPARATOR . "ueditor" . DIRECTORY_SEPARATOR . $date . DIRECTORY_SEPARATOR;
        $strSavePath       = cmf_get_root() . 'upload'. DIRECTORY_SEPARATOR . "ueditor" . DIRECTORY_SEPARATOR . $date . DIRECTORY_SEPARATOR;
        //远程抓取图片配置
        $config = [
            "savePath"   => $strSavePath,            //保存路径
            "allowFiles" => $allowedExts,// [".gif", ".png", ".jpg", ".jpeg", ".bmp"], //文件允许格式
            "maxSize"    => $uploadMaxFileSize                    //文件大小限制，单位KB
        ];
       
        $storage_setting = cmf_get_cmf_settings('storage');
        //$qiniu_domain    = $storage_setting['Qiniu']['domain'];

        $qiniu_domain    = $_SERVER['HTTP_HOST'];
        $no_need_domains = [$qiniu_domain];

        $list = [];
        foreach ($source as $imgUrl) {
            $host = str_replace(['http://', 'https://'], '', $imgUrl);
            $host = explode('/', $host);
            $host = $host[0];
            if (in_array($host, $no_need_domains)) {
                continue;
            }
            $return_img           = $item;
            $return_img['source'] = $imgUrl;
            $imgUrl               = htmlspecialchars($imgUrl);
            $imgUrl               = str_replace("&", "&", $imgUrl);
            //http开头验证
            if (strpos($imgUrl, "http") !== 0) {
                $return_img['state'] = $this->stateMap['ERROR_HTTP_LINK'];
                array_push($list, $return_img);
                continue;
            }

            //获取请求头
            // is_sae()

            if (!cmf_is_sae()) {//SAE下无效
                $heads = get_headers($imgUrl);
                //死链检测
                if (!(stristr($heads[0], "200") && stristr($heads[0], "OK"))) {
                    $return_img['state'] = $this->stateMap['ERROR_DEAD_LINK'];
                    array_push($list, $return_img);
                    continue;
                }
            }

            //格式验证(扩展名验证和Content-Type验证)
            $fileType = strtolower(strrchr($imgUrl, '.'));
            $fileType=(explode('.',$fileType))[1];
            if (!in_array($fileType, $config['allowFiles']) || !(stristr($heads[3], "image"))) {
                $return_img['state'] = $this->stateMap['ERROR_HTTP_CONTENTTYPE'];
                array_push($list, $return_img);
                continue;
            }
           
            //打开输出缓冲区并获取远程图片
            ob_start();
            $context = stream_context_create(
                [
                    'http' => [
                        'follow_location' => false // don't follow redirects
                    ]
                ]
            );
            //请确保php.ini中的fopen wrappers已经激活
            readfile($imgUrl, false, $context);
            $img = ob_get_contents();
            ob_end_clean();

            //大小验证
            $uriSize   = strlen($img); //得到图片大小
            $allowSize = 1024 * $config['maxSize'];
            if ($uriSize > $allowSize) {
                $return_img['state'] = $this->stateMap['ERROR_SIZE_EXCEED'];
                array_push($list, $return_img);
                continue;
            }

            $file     = uniqid() . strrchr($imgUrl, '.');
            $savePath = $config['savePath'];
            $tmpName  = $savePath . $file;
           

            //创建保存位置
            if (!file_exists($savePath)) {
                mkdir("$savePath", 0777, true);
            }
           
            $file_write_result = cmf_file_write($tmpName, $img);
            if ($file_write_result) {
                $cmfgetoption=cmf_get_option('storage');                
                if ($cmfgetoption['type'] == 'Qiniu') {

                    //todo qiniu  code

                }
                if ($cmfgetoption['type'] == 'Local') {
                    $file = $strSavePath . $file;
                    $return_img['state'] = 'SUCCESS';
                    $return_img['url']   = '/'.$file;
                    array_push($list, $return_img);
                }
            } else {
                $return_img['state'] = $this->stateMap['ERROR_WRITE_CONTENT'];
                array_push($list, $return_img);
            }
        }

        return json_encode([
            'state' => count($list) ? 'SUCCESS' : 'ERROR',
            'list'  => $list
        ]);
    }