<?php
/**
 * 默认控制器
 */
class Controller_Upload extends Controller_Abstract
{
	/**
	 * @var integer 上传成功返回的编码
	 * @since 1.1
	 */
	const SUCCESS_UPLOAD_CODE = 12;
	
    /**
     * 后台插件上传图片首页
     *
     */
    public function indexAction()
    {
        $data = array('error' => 0, 'url' => '', 'message'=> '', 'relaPath' => '');
        $dir = strtolower($this->_request->query('dir'));
        if($dir == 'media' || isset($_FILES['video'])) //视频上传
        {
			$video = json_decode(Lib_Video::saveVideo($_FILES), true);
			$data['relaPath'] =  $video['video_url'];
			$data['url'] = Lib_Video::getVideoUrl($video['video_url']);  
        }
        else
        {
        	$url = Lib_Images::saveImage($_FILES);
        	if(empty($url))
        	{
        		$data['error'] = 1;
        		$data['message'] = '上传文件失败';
        	}
        	else
        	{
        		$data['relaPath'] = $url;
        		$data['url'] = Lib_Images::getImageUrl($url, 'source', 'fragmentimg');
        	}
        }
        return json_encode($data);
    }
    
    /**
     * 后台插件上传视频处理
     * 
     * @return json
     */
    public function videoAction()
    {
    	$data = array('error' => 0, 'url' => '', 'message'=> '', 'relaPath' => '');
    	if (isset($_GET["upload_ret"]))
    	{
    		$decodedRet = base64_decode( $_GET["upload_ret"]);
    		$retObj = json_decode($decodedRet, true);
    		$data['relaPath'] = $retObj['key'];
    		$data['url'] = VIDEO_SITE_DOMAIN.'/'.$retObj['key'];
    	}
    	if(isset($_GET['error']))
    	{
    		$data['error'] = 1;
    		$data['message'] = '上传文件失败';
    	}
    	return json_encode($data);
    }
    
    
    /**
     * 上传文件[流]
     *
     * @param string key (密钥)
     * @param string format (返回格式xml|json)
     */
    public function upfileAction()
    {
    	$format = $this->_request->query('format', 'xml');
    	// 验证是否是post提交
    	if (!$this->_request->isPost())
    	{
    		return $this->_response($format, Config_Code_Upload::$errorPost['code'], Config_Code_Upload::$errorPost['msg']);
    	}
    	// 验证key密钥是否有效
    	$key = $this->_request->query('key', '');
    	if ($key === '' || !is_string($key))
    	{
    		return $this->_response($format, Config_Code_Upload::$errorNoKey['code'], Config_Code_Upload::$errorNoKey['msg']);
    	}
    	$key = Util_Utils_Function::base64_str_decode($key);
    	 
    	// 验证key密钥中是否存在项目
    	$keyData = json_decode(Util_Utils_AuthCode::decode($key, Config_File_Upload::$key), true);
    	if (!array_key_exists('_project', $keyData))
    	{
    		return $this->_response($format, Config_Code_Upload::$errorValidKey['code'], Config_Code_Upload::$errorValidKey['msg']);
    	}
    
    	// 验证Key密钥中项目是否存在
    	$project = $keyData['_project'];
    	$projectConfig = Lib_Images::genConfig($project);
    	if (array() === $projectConfig)
    	{
    		return $this->_response($format, Config_Code_Upload::$errorNoProject['code'], Config_Code_Upload::$errorNoProject['msg'] . $project);
    	}
    	$tag = $this->_request->query('tag', '');
    	if($tag == 'flash')
    	{
    		//flash上传，type有问题
    		foreach($_FILES as $key => $file)
    		{
    			if($file['type'] == 'application/octet-stream')
    			{
    				$_FILES[$key]['type'] = 'image/jpeg';
    			}
    		}
    	}
    	// 上传文件[流]操作
    	if (array() !== $_FILES) // 文件
    	{
    		$upload = new Util_Upload_File($_FILES, $projectConfig['serverPath']);
    		$upload->setFormat($projectConfig['format']);
    	}
    	elseif (false !== ($file = $this->_request->requestRawBody())) // 文件流
    	{
    		//读取头信息高位
    		$fileExtCode = substr($file, 0, 2);
    		$format = '';
    		if(strlen($fileExtCode))
    		{
    			$fileExtCode = unpack('C2char',$fileExtCode);
    			$fileExtCode = intval(implode('',$fileExtCode));
    		}
    		$format = Util_Common_Io_FileExt::getMine(Util_Common_Io_FileExt::getExtByCode($fileExtCode));
    		if(!preg_match($projectConfig['format'], $format))
    		{
    			return $this->_response($format, 10, '不支持上传的文件类型');
    		}
    		$upload = new Util_Upload_FileStream($file, $projectConfig['serverPath']);
    	}
    	else // 文件[流]不存在
    	{
    		return $this->_response($format, Config_Code_Upload::$errorNoUploadFile['code'], Config_Code_Upload::$errorNoUploadFile['msg']);
    	}
    	$upload->setMaxFileSize($projectConfig['upload_max_size']);
    	$upload->setPrefix($projectConfig['randNode']);
    	if (isset($keyData['file_path']) && is_string($keyData['file_path']))
    	{
    		$upload->setNewFile($keyData['file_path']);
    	}
    	// 验证文件是否有效
    	$check = $upload->check();
    	if ($check['code'] !== 0)
    	{
    		return $this->_response($format, $check['code'], $check['mes']);
    	}
    	// 上传并构建返回结果, 同时检查上传文件是否有错
    	$result = $this->genResult($format, $upload, $check['result'], $project, $projectConfig);
    	if (isset($result['hasError']))
    	{
    		return $this->_response($format, Config_Code_Upload::$errorUploadFailed['code'], Config_Code_Upload::$errorUploadFailed['msg']);
    	}
    	return $this->_response($format, self::SUCCESS_UPLOAD_CODE, $check['mes'], $result);
    }
    
    /**
     * 上传并构建返回的结果
     *
     * @param object $upload (上传类)
     * @param array $files (文件列表)
     * @return array
     */
    protected function genResult($format, &$upload, $files, $project, &$projectConfig)
    {
    	$result = array();
    
    	$file = null;
    	$writed = array();
    	$isJson = strtolower($format) === 'json';
    	foreach ($files as $id => $info)
    	{
    		$writed = $upload->writeOne($id);
    		if ($writed['code'] !== self::SUCCESS_UPLOAD_CODE)
    		{
    			$result['hasError'] = true;
    			break;
    		}
    		$file = $writed['result']['hit'][$id];
    		$result[$id] = $this->_genJsonResult($file, $project, $projectConfig);
    	}
    
    	return $result;
    }
    
    /**
     * 返回默认的图片信息
     *
     * @return array
     */
    private function _getDefaultMeta()
    {
    	return array('width' => 200, 'height' => 300, 'size' => 200000, 'mine' => 'image/jpeg',);
    }
    
    /**
     * 构建JSON格式的返回结果
     *
     * @param string $url (相对地址)
     * @param string $project (项目名称)
     * @param array $projectConfig (项目配置)
     * @return void
     */
    private function _genJsonResult($params, $project, &$projectConfig)
    {
    	$result = array(); 	
    	// 预处理生成缩略图片
    	$data = Lib_Images::getImageInfo($params['relaPath'], $project);
    	if (array() === $data)
    	{
    		$data = $this->_getDefaultMeta();
    	}
    	$result['relaPath'] = $params['relaPath'];
    	$result['sourcePath'] = $projectConfig['sourceUrl'] . $params['relaPath'];
    	$result['absPath'] = $result['sourcePath'];
    	$result['width'] = $data['width'];
    	$result['height'] = $data['height'];
    	$result['size'] = $data['size'];
    	$result['mine'] = $data['mine'];
    	return $result;
    }
    
    /**
     * 构建返回结果
     *
     * @param string $format (返回格式 xml|json)
     * @param integer $code (错误编号)
     * @param string $msg  (错误提示)
     * @param mixed $data (返回数据)
     * @return string | void
     */
    private function _response($format = 'xml', $code = 0, $msg = '', $data = '')
    {
    	$response = '';
    
    	switch (strtolower($format))
    	{
    		case 'json':
    			header('Content-Type: application/json; charset=utf-8');
    			$response = Lib_Utils::result($code, $msg, $data);
    			break;
    		case 'xml':
    		default:
    			header('Content-Type: text/xml; charset=utf-8');
    			$response = Util_Utils_Convert::array2xml(array('Code' => $code, 'Msg' => $msg, 'Data' => $data,), 'File');
    			$response = <<<EOD
<?xml version="1.0" encoding="utf-8"?>
<Response xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
{$response}
</Response>
EOD;
    break;
    	}
    	header("Access-Control-Allow-Origin: *");//让html5支持跨域上传
    	return $response;
    }
    
}