'; } else { $result['show'] = ''; } } /** * 查找后置操作 * */ protected function _after_select(&$result, $options) { foreach ($result as &$record) { $this->_after_find($record, $options); } } /** * 获取上传图片路径 * @param int $id 文件ID * @return string * */ public function getCover($id = null, $type = null) { if ($id) { // 如果以http开头直接返回 if (strpos($id, "http") === 0) { return $id; } $upload_info = $this->find($id); $url = $upload_info['real_path']; } if (!isset($url)) { switch ($type) { case 'default': // 默认图片 $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/default.gif'; break; case 'avatar': // 用户头像 $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/avatar.png'; break; case 'qr_code': // qr_code $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/qr_code.png'; break; case 'qr_ios': // qr_ios $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/qr_ios.png'; break; case 'qr_android': // qr_android $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/qr_android.png'; break; case 'qr_weixin': // qr_weixin $url = C('TMPL_PARSE_STRING.__HOME_IMG__') . '/default/qr_weixin.png'; break; default: $url = ''; break; } } return $url; } /** * 获取上传文件信息 * @param int $id 文件ID * @return string * */ public function getUploadInfo($id, $field) { $upload_info = $this->where('status = 1')->find($id); if ($field) { if (!$upload_info[$field]) { return $upload_info['id']; } else { return $upload_info[$field]; } } return $upload_info; } /** * 上传文件 * */ public function upload($files) { // 获取文件信息 $_FILES = $files ? $files : $_FILES; // 返回标准数据 $return = array('error' => 0, 'success' => 1, 'status' => 1); $dir = I('request.dir') ? I('request.dir') : 'image'; // 上传类型image、flash、media、file if (!in_array($dir, array('image', 'flash', 'media', 'file'))) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '缺少上传参数！'; return $return; } // 上传文件钩子，用于七牛云、又拍云等第三方文件上传的扩展 hook('UploadFile', $dir); // 根据上传文件类型改变上传大小限制 $upload_config = C('UPLOAD_CONFIG'); if ($_GET['temp'] === 'true') { $upload_config['rootPath'] = './Runtime/'; } $upload_driver = C('UPLOAD_DRIVER'); if (!$upload_driver) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '无效的文件上传驱动'; return $return; } // 友情提醒 $upload_max_filesize = substr(ini_get('upload_max_filesize'), 0, -1); $post_max_size = substr(ini_get('post_max_size'), 0, -1); if ($post_max_size < $upload_max_filesize) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '警告：php.ini里post_max_size值应该设置比upload_max_filesize大'; return $return; } if ($dir == 'image') { if (C('UPLOAD_IMAGE_SIZE')) { if (C('UPLOAD_IMAGE_SIZE') > $upload_max_filesize) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '警告：php.ini里upload_max_filesize值小于系统后台设置的图片上传大小'; return $return; } $upload_config['maxSize'] = C('UPLOAD_IMAGE_SIZE') * 1024 * 1024; // 图片的上传大小限制 } } else { if (C('UPLOAD_FILE_SIZE')) { if (C('UPLOAD_FILE_SIZE') > $upload_max_filesize) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '警告：php.ini里upload_max_filesize值小于系统后台设置的文件上传大小'; return $return; } $upload_config['maxSize'] = C('UPLOAD_FILE_SIZE') * 1024 * 1024; // 普通文件上传大小限制 } } // 上传配置 $ext_arr = array( 'image' => array('gif', 'jpg', 'jpeg', 'png', 'bmp'), 'flash' => array('swf', 'flv'), 'media' => array('swf', 'flv', 'mp3', 'wav', 'wma', 'wmv', 'mid', 'avi', 'mpg', 'asf', 'rm', 'rmvb', 'mp4'), 'file' => array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'pdf', 'wps', 'txt', 'zip', 'rar', 'gz', 'bz2', '7z', 'ipa', 'apk', 'dmg', 'iso'), ); // 计算文件散列以查看是否已有相同文件上传过 $reay_file = array_shift($_FILES); $con['md5'] = md5_file($reay_file['tmp_name']); $con['sha1'] = sha1_file($reay_file['tmp_name']); $con['size'] = $reay_file['size']; $upload = $this->where($con)->find(); if ($upload) { // 发现相同文件直接返回 $return['id'] = $upload['id']; $return['name'] = $upload['name']; $return['url'] = $upload['real_path']; $return['path'] = '.' . $upload['path']; } else { // 上传文件 $upload_config['removeTrash'] = array($this, 'removeTrash'); $upload = new Upload($upload_config, $upload_driver, C("UPLOAD_{$upload_driver}_CONFIG")); // 实例化上传类 $upload->exts = $ext_arr[$dir] ? $ext_arr[$dir] : $ext_arr['image']; // 设置附件上传允许的类型，注意此处$dir为空时漏洞 $info = $upload->uploadOne($reay_file); // 上传文件 if (!$info) { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '上传出错' . $upload->getError(); } else { // 获取上传数据 if ($_GET['temp'] === 'true') { $upload_data['name'] = $info["name"]; $upload_data['path'] = '/Runtime/' . $info['savepath'] . $info['savename']; $upload_data['url'] = $info["url"] ?: ''; // 返回数据 if ($upload_data["url"]) { $return['url'] = $upload_data['url']; } else { $return['url'] = __ROOT__ . $upload_data['path']; } $return['path'] = '.' . $upload_data['path']; $return['name'] = $upload_data['name']; } else { $upload_data['type'] = $info["type"]; $upload_data['name'] = $info["name"]; $upload_data['path'] = '/Uploads/' . $info['savepath'] . $info['savename']; $upload_data['url'] = $info["url"] ?: ''; $upload_data['ext'] = $info["ext"]; $upload_data['size'] = $info["size"]; $upload_data['md5'] = $info['md5']; $upload_data['sha1'] = $info['sha1']; $upload_data['location'] = $upload_driver; // 返回数据 $result = $this->create($upload_data); $result = $this->add($result); if ($result) { if ($info["url"]) { $return['url'] = $upload_data['url']; } else { $return['url'] = __ROOT__ . $upload_data['path']; } $return['path'] = '.' . $upload_data['path']; $return['name'] = $upload_data['name']; $return['id'] = $result; } else { $return['error'] = 1; $return['success'] = 0; $return['status'] = 0; $return['message'] = '上传出错' . $this->error; } } } } return $return; } /** * 下载指定文件 * @param number $root 文件存储根目录 * @param integer $id 文件ID * @param string $args 回调函数参数 * @return boolean false-下载失败，否则输出下载文件 */ public function download($id, $callback = null, $args = null) { // 获取下载文件信息 $file = $this->find($id); if (!$file) { $this->error = '不存在该文件！'; return false; } // 下载文件 switch ($file['location']) { case 'Local': // 下载本地文件 return $this->downLocalFile($file, $callback, $args); default: $this->error = '不支持的文件存储类型！'; return false; } } /** * 下载本地文件 * @param array $file 文件信息数组 * @param callable $callback 下载回调函数 * @param string $args 回调函数参数 * @return boolean 下载失败返回false */ private function downLocalFile($file, $callback = null, $args = null) { $fiel_path = '.' . $file['path']; if (file_exists($fiel_path)) { // 调用回调函数 is_callable($callback) && call_user_func($callback, $args); // 新增下载数 $this->where(array('id' => $file['id']))->setInc('download'); // 执行下载 header("Content-Description: File Transfer"); header('Content-type: ' . $file['type']); header('Content-Length:' . $file['size']); if (preg_match('/MSIE/', $_SERVER['HTTP_USER_AGENT'])) { // for IE header('Content-Disposition: attachment; filename="' . rawurlencode($file['name']) . '"'); } else { header('Content-Disposition: attachment; filename="' . $file['name'] . '"'); } readfile($fiel_path); exit; } else { $this->error = '文件已被删除！'; return false; } } }