<?php
// +----------------------------------------------------------------------
// | OpenSociax [ open your team ! ]
// +----------------------------------------------------------------------
// | Copyright (c) 2010 http://www.sociax.com.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: genixsoft.net <智士软件>
// +----------------------------------------------------------------------
// $Id$

/**
 +------------------------------------------------------------------------------
 * 附件操作服务，参考XattachModel
 +------------------------------------------------------------------------------
 */

//载入上传操作类
require_cache("./addons/libs/UploadFile.class.php");

class XattachService extends Service {

	/**
	 * 上传附件
	 * 
	 * @param string $attach_type   附件类型
	 * @param array  $input_options 配置选项[不推荐修改, 默认使用后台的配置]
	 */
	public function upload($attach_type='attach',$input_options=array()) {
		$system_default = model('Xdata')->lget('attach');
		if ( empty($system_default['attach_path_rule']) || empty($system_default['attach_max_size']) || empty($system_default['attach_allow_extension']) ) {
			$data['attach_path_rule']		 = 'Y/md/H/';
			$data['attach_max_size']		 = '2'; // 默认2M
			$data['attach_allow_extension']  = 'jpg,gif,png,jpeg,bmp,zip,rar,doc,xls,ppt,docx,xlsx,pptx,pdf';
			model('Xdata')->lput('attach', $data);
			$system_default = $data;
		}
		
		//载入默认规则
		$default_options =	array();
		$default_options['custom_path']	=	date($system_default['attach_path_rule']);				//应用定义的上传目录规则：'Y/md/H/'
		$default_options['max_size']	=	floatval($system_default['attach_max_size'])*1000000;	//单位: 兆
		$default_options['allow_exts']	=	$system_default['attach_allow_extension']; 				//'jpg,gif,png,jpeg,bmp,zip,rar,doc,xls,ppt,docx,xlsx,pptx,pdf'
		$default_options['allow_types']	=	'';
		$default_options['save_path']	=	UPLOAD_PATH.'/'.$default_options['custom_path'];
		$default_options['save_name']	=	'';
		$default_options['save_rule']	=	'uniqid';
		$default_options['save_to_db']	=	true;
		
		//定制化设这 覆盖默认设置
		$options	=	array_merge($default_options,$input_options);

		//用户ID
		if( intval($options['uid'])==0 )	$options['uid']	= $_SESSION['mid'];

		//初始化上传参数
        $upload					=	new UploadFile($options['max_size'],$options['allow_exts'],$options['allow_types']);
		//设置上传路径
		$upload->savePath		=	$options['save_path'];
        //启用子目录
		$upload->autoSub		=	false;
		//保存的名字
        $upload->saveName		=   $options['save_name'];
		//默认文件名规则
		$upload->saveRule		=	$options['save_rule'];
        //是否缩略图
        $upload->thumb          =   false;

		//创建目录
		mkdir($upload->savePath,0777,true);

		//执行上传操作
        if(!$upload->upload()) {

			//上传失败，返回错误
			$return['status']	=	false;
			$return['info']		=	$upload->getErrorMsg();
			return	$return;

		}else{

			$upload_info	=	$upload->getUploadFileInfo();
			$xattach		=	M('Attach');
			//保存信息到附件表
			if($options['save_to_db']){
				foreach($upload_info as $u){
					$map['attach_type']	=	$attach_type;
					$map['userId']		=	$options['uid'];
					$map['name']		=	$u['name'];
					$map['type']		=	$u['type'];
					$map['size']		=	$u['size'];
					$map['extension']	=	$u['extension'];
					$map['hash']		=	$u['hash'];
					$map['savepath']	=	$options['custom_path'];
					$map['savename']	=	$u['savename'];
					$map['uploadTime']	=	time();
					//$map['savedomain']=	C('ATTACH_SAVE_DOMAIN');
					$aid		=	$xattach->add($map);
					$map['id']	=	intval($aid);
					$map['key']	=	$u['key'];
					$infos[]	=	$map;
					unset($map);
				}
			}else{
				$infos	=	$upload_info;
			}
			//输出信息
			$return['status']	=	true;
			$return['info']		=	$infos;
			//上传成功，返回信息
			return	$return;
    	}
	}
	
	//直接直接保存文件到附件表
	public function addFile($attach_type='attach',$attach_file) {

		//获取系统配置
		$system_default = model('Xdata')->lget('attach');
		if ( empty($system_default['attach_path_rule']) || empty($system_default['attach_max_size']) || empty($system_default['attach_allow_extension']) ) {
			$data['attach_path_rule']		 = 'Y/md/H/';
			$data['attach_max_size']		 = '2'; // 默认2M
			$data['attach_allow_extension']  = 'jpg,gif,png,jpeg,bmp,zip,rar,doc,xls,ppt,docx,xlsx,pptx,pdf';
			model('Xdata')->lput('attach', $data);
			$system_default = $data;
		}

		//获取文件信息
        if(!file_exists($attach_file)) {

			//上传失败，返回错误
			$return['status']	=	false;
			$return['info']		=	'原始文件不存在';
			return	$return;

		}else{

			//读取附件大小
			$file['size']	=	filesize($attach_file);
			$file['hash']	=	md5_file($attach_file);

			//读取附件名称、后缀名
			if(function_exists('pathinfo')){
				$fileinfo	=	pathinfo($attach_file);
				$file['name']		=	$fileinfo['basename'];
				$file['extension']	=	$fileinfo['extension'];
			}else{
				$file['name']	=	basename($attach_file);
				preg_match('|\.(\w+)$|', $file['name'], $file['extension']);
			}

			//读取附件类型
			if(function_exists('mime_content_type')){
				$file['type']	=	mime_content_type($attach_file);
			}elseif(in_array(strtolower($file['extension']),array('jpeg','jpg','gif','png','bmp'))){
				$file['type']	=	'image/'.$file['extension'];
			}else{
				$file['type']	=	'text/'.$file['extension'];
			}
		}

		//载入默认规则
		$options =	array();
		$options['custom_path']	=	date($system_default['attach_path_rule']);
		$options['save_path']	=	UPLOAD_PATH.'/'.$options['custom_path'];
		$options['save_name']	=	uniqid().".".$file['extension'];
		$options['save_to_db']	=	true;

		//用户ID
		if( intval($options['uid'])==0 )	$options['uid']	= intval($_SESSION['mid']);

		//创建目录
		mkdir($options['save_path'],0777,true);

		//执行上传操作
        if(!copy($attach_file,$options['save_path'].'/'.$options['save_name'])) {

			//上传失败，返回错误
			$return['status']	=	false;
			$return['info']		=	'文件转移失败';
			return	$return;

		}else{

			//保存信息到附件表
			$map['attach_type']	=	$attach_type;
			$map['userId']		=	$options['uid'];
			$map['name']		=	$file['name'];
			$map['type']		=	$file['type'];
			$map['size']		=	$file['size'];
			$map['extension']	=	strtolower($file['extension']);
			$map['hash']		=	$file['hash'];
			$map['savepath']	=	$options['custom_path'];
			$map['savename']	=	$options['save_name'];
			$map['uploadTime']	=	time();
			//$map['savedomain']=	C('ATTACH_SAVE_DOMAIN'); //如果做分布式存储，需要写方法来分配附件的服务器domain
			$aid		=	M('Attach')->add($map);
			$map['id']	=	intval($aid);
			$map['key']	=	0;

			//上传成功，输出信息
			$return['status']	=	true;
			$return['info']		=	$map;
			return	$return;

    	}
	}

	//获取文件流
	public function streamUpload() {

	}

	/**
	 * 下载附件
	 * 
	 * @param int $aid 附件ID 为空时使用$_REQUEST['id']作为附件ID
	 */
	public function download($aid) {
		if(intval($aid) == 0){
			$aid	=	intval($_REQUEST['id']);
		}
		$attach	=	M('Attach')->where("id='$aid'")->find();
		if(!$attach){
			$this->error('附件不存在或已被删除！');
		}
		//下载函数
		require_cache('./addons/libs/Think/Http.class.php');
		if(file_exists(UPLOAD_PATH.$attach['savepath'].$attach['savename'])) {
			$filename = iconv("utf-8",'gb2312',$attach['savename']);
			Http::download(UPLOAD_PATH.$attach['savepath'].$attach['savename'],$filename);
		}else{
			$this->error('附件不存在或已被删除！');
		}
	}

	/* 后台管理相关方法 */

	//返回失败信息
	public function error($info,$return=false){
		$output['status']	=	false;
		$output['info']		=	$info;
		if($return){
			return $output;
		}else{
			echo json_encode($output);
		}
	}

	//返回成功信息
	public function success($info,$return=false){
		$output['status']	=	true;
		$output['info']		=	$info;
		if($return){
			return $output;
		}else{
			echo json_encode($output);
		}
	}
	
	//运行服务
	public function run(){
	}

	//启动服务，未编码
	public function _start(){
		return true;
	}

	//停止服务，未编码
	public function _stop(){
		return true;
	}

	//卸载服务，未编码
	public function _install(){
		return true;
	}

	//卸载服务，未编码
	public function _uninstall(){
		return true;
	}

}
?>