// 是否下载图片
$yct = 1;
// 下载远程图片
if ($yct || $base64) {
    $temp = preg_replace('/<pre(.*)<\/pre>/siU', '', $value);
    $temp = preg_replace('/<code(.*)<\/code>/siU', '', $temp);
    if (preg_match_all("/(src)=([\"|']?)([^ \"'>]+)\\2/i", $temp, $imgs)) {
        foreach ($imgs[3] as $img) {

            if ($base64 && preg_match('/^(data:\s*image\/(\w+);base64,)/i', $img, $result)) {
                // 处理图片
                $ext = strtolower($result[2]);
                if (!in_array($ext, ['png', 'jpg', 'jpeg', 'gif', 'webp'])) {
                    continue;
                }
                $content = base64_decode(str_replace($result[1], '', $img));
                if (strlen($content) > 30000000) {
                    continue;
                }
                $rt = \Phpcmf\Service::L('upload')->base64_image([
                    'ext' => $ext,
                    $torname => $content,
                    'watermark' => \Phpcmf\Service::C()->get_cache('site', SITE_ID, 'watermark', 'ueditor') || $field['setting']['option']['watermark'] ? 1 : 0,
                    'attachment' => \Phpcmf\Service::M('Attachment')->get_attach_info(intval($field['setting']['option']['attachment']), $field['setting']['option']['image_reduce']),
                ]);
                if (!$rt['code']) {
                    continue;
                }
                $att = \Phpcmf\Service::M('Attachment')->save_data($rt['data'], 'ueditor:'.$rid);
                if ($att['code']) {
                    // 归档成功
                    $value = str_replace($img, $rt['data']['url'], $value);
                    $img = $att['code'];
                    // 标记附件
                    \Phpcmf\Service::M('Attachment')->save_ueditor_aid($rid, $att['code']);
                }
            } else {
                $ext = _get_image_ext($img);
                if (!$ext) {
                    continue;
                }
                // 下载图片
                if ($yct && strpos($img, 'http') === 0) {
                    if (dr_is_app('mfile') && \Phpcmf\Service::M('mfile', 'mfile')->check_upload(\Phpcmf\Service::C()->uid)) {
                        //用户存储空间已满
                    } else {
                        // 正常下载
                        // 判断域名白名单
                        $arr = parse_url($img);
                        $domain = $arr['host'];
                        if ($domain) {
                            $sites = \Phpcmf\Service::R(WRITEPATH.'config/domain_site.php');
                            if (isset($sites[$domain])) {
                                // 过滤站点域名
                            } elseif (strpos(SYS_UPLOAD_URL, $domain) !== false) {
                                // 过滤附件白名单
                            } else {
                                $zj = 0;
                                $remote = \Phpcmf\Service::C()->get_cache('attachment');
                                if ($remote) {
                                    foreach ($remote as $t) {
                                        if (strpos($t['url'], $domain) !== false) {
                                            $zj = 1;
                                            break;
                                        }
                                    }
                                }
                                if ($zj == 0) {
                                    // 可以下载文件
                                    // 下载远程文件
                                    $rt = \Phpcmf\Service::L('upload')->down_file([
                                        'url' => $img,
                                        'timeout' => 5,
                                        'watermark' => \Phpcmf\Service::C()->get_cache('site', SITE_ID, 'watermark', 'ueditor') || $field['setting']['option']['watermark'] ? 1 : 0,
                                        'attachment' => \Phpcmf\Service::M('Attachment')->get_attach_info(intval($field['setting']['option']['attachment']), $field['setting']['option']['image_reduce']),
                                        'file_ext' => $ext,
                                    ]);
                                    if ($rt['code']) {
                                        $att = \Phpcmf\Service::M('Attachment')->save_data($rt['data'], 'ueditor:'.$rid);
                                        if ($att['code']) {
                                            // 归档成功
                                            $value = str_replace($img, $rt['data']['url'], $value);
                                            $img = $att['code'];
                                            // 标记附件
                                            \Phpcmf\Service::M('Attachment')->save_ueditor_aid($rid, $att['code']);
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
// 最后得到的文档内容
$save[0][$torname] = $value;