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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* STBlog Blogging System
*
* 基于Codeigniter的单用户多权限开源博客系统
*
* STBlog is an open source multi-privilege blogging System built on the
* well-known PHP framework Codeigniter.
*
* @package STBLOG
* @author Saturn <[email protected]>
* @copyright Copyright (c) 2009 - 2010, cnsaturn.com.
* @license GNU General Public License 2.0
* @link http://code.google.com/p/stblog/
* @version 0.1.0
*/
// ------------------------------------------------------------------------
/**
* STBLOG Upload Class
*
* 系统采用swf uploader处理上传文件，由于此类由flash触发，故不能采用系统默认的验证方式
*
* @package STBLOG
* @subpackage Libraries
* @category Libraries
* @author Saturn <[email protected]>
* @link http://code.google.com/p/stblog/
*/
class Upload extends CI_Controller {
/**
* 默认上传路径
*
* @access private
* @var string
*/
private $_upload_dir = 'uploads/';
/**
* 默认允许上传后缀名
*
* @access private
* @var string
*/
private $_upload_exts = 'zip|gz|rar|swf|jpg|png|gif|jpeg';
/**
* 常用图片文件后缀名
*
* @access private
* @var string
*/
private $_image_exts = array('png','gif','jpg','jpeg','bmp','tiff','tif', 'ico', 'tga');
/**
* 构造函数
*
* @access public
* @return void
*/
function __construct()
{
parent::__construct();
$this->load->library('upload');
$this->load->model('users_mdl');
$this->_setup_upload_cfgs();
}
/**
* 默认执行方法
*
* 本方法仅允许被Flash触发
* 由于flash触发此方法时会产生一个新的session
* 所以这里采用token来验证上传是否合法
*
* @access public
* @return void
*/
public function index()
{
$uid = $this->input->post('__uid', TRUE);
$token = $this->input->post('__token', TRUE);
if(empty($uid) || empty($token)) show_404();
$user = $this->users_mdl->get_user_by_id($uid);
if($user['token'] == $token && ('contributor' == $user['group'] || 'editor' == $user['group'] || 'administrator' == $user['group']))
{
/** 合法用户，设置执行参数并执行上传 */
$config['upload_path'] = FCPATH.$this->_upload_dir;
$config['allowed_types'] = $this->_upload_exts;
$this->upload->initialize($config);
if(!$this->upload->do_upload($filed = 'Filedata'))
{
log_message('debug', $this->upload->display_errors());
}
else
{
$upload_data = $this->upload->data();
$file = array(
'name' => $upload_data['file_name'],
'path' => $this->_upload_dir. $upload_data['file_name'],
'size' => $upload_data['file_size'],
'mime' => get_mime_by_extension($upload_data['orig_name']),
'isImage' => $this->_is_image($upload_data['file_name'])
);
//DB
$attachment_data = array(
'title' => $upload_data['file_name'],
'slug' => $upload_data['file_name'],
'created' => time(),
'modified' => time(),
'text' => serialize($file),
'order' => 0,
'authorId' => $uid,
'type' => 'attachment',
'status' => 'unattached',
'commentsNum' => 0,
'allowComment' => 0,
'allowPing' => 0,
'allowFeed' => 0
);
$insert_id = $this->posts_mdl->add_post($attachment_data);
if(!empty($insert_id))
{
$this->load->helper('json');
throwJson(array(
'pid' => $insert_id,
'title' => $upload_data['file_name'],
'type' => $this->_get_type($upload_data['file_name']),
'size' => $upload_data['file_size'],
'isImage' => $this->_is_image($upload_data['file_name']),
'url' => base_url().$this->_upload_dir.$upload_data['file_name'],
'permalink' => site_url('attachment'.'/'.$insert_id)
));
}
}
}
show_404();
}
/**
* 替换上传文件
*
* 本方法仅允许被Flash触发
* 由于flash触发此方法时会产生一个新的session
* 所以这里采用token来验证上传是否合法
*
* @access public
* @param int $pid 文章ID
* @return void
*/
public function modify($pid = 0)
{
$uid = $this->input->post('__uid',TRUE);
$token = $this->input->post('__token',TRUE);
if(empty($uid) || empty($token) || empty($pid) || !is_numeric($pid)) show_404();
$user = $this->users_mdl->get_user_by_id($uid);
$attachment = $this->posts_mdl->get_post_by_id('pid', $pid);
if($attachment)
{
$info = unserialize($attachment->text);
}
else
{
show_404();
}
unset($attachment);
if($user['token'] == $token && ('contributor' == $user['group'] || 'editor' == $user['group'] || 'administrator' == $user['group']))
{
/** 合法用户，设置执行参数并执行上传 */
$config['upload_path'] = FCPATH . $this->_upload_dir;
$config['allowed_types'] = $this->_upload_exts;
$config['file_name'] = $info['name'];
$config['overwrite'] = TRUE;
$this->upload->initialize($config);
if(!$this->upload->do_upload($filed = 'Filedata'))
{
log_message('debug', $this->upload->display_errors());
}
else
{
$upload_data = $this->upload->data();
$file = array(
'name' => $upload_data['file_name'],
'path' => $this->_upload_dir. $upload_data['file_name'],
'size' => $upload_data['file_size'],
'mime' => get_mime_by_extension($upload_data['orig_name']),
'isImage' => $this->_is_image($upload_data['file_name'])
);
//DB
$attachment_data = array(
'modified' => time(),
'text' => serialize($file),
'authorId' => $uid,
);
if($this->posts_mdl->update_post($pid, $attachment_data))
{
$this->load->helper('json');
throwJson(array(
'pid' => $pid,
'title' => $upload_data['file_name'],
'type' => $this->_get_type($upload_data['file_name']),
'size' => $upload_data['file_size'],
'isImage' => $this->_is_image($upload_data['file_name']),
'url' => base_url().$this->_upload_dir.$upload_data['file_name'],
'permalink' => site_url('attachment'.'/'.$pid)
));
}
}
}
show_404();
}
/**
* 上传文件是否为图片
*
* 由于SWFUPLOAD所有类型文件的MIME均为application/octet-stream
* 故使用Codeigniter自带的上传类无法准确获取是否为图片
*
* @access private
* @param string $file 文件名
* @return string
*/
private function _is_image($file)
{
$ext = $this->_get_type($file);
return (in_array($ext, $this->_image_exts))?TRUE:FALSE;
}
/**
* 根据文件名获取拓展名
*
* @access private
* @param string $file_name 文件名
* @return string
*/
private function _get_type($file)
{
$ext = '';
$part = explode('.', $file);
if (($length = count($part)) > 1)
{
$ext = strtolower($part[$length - 1]);
}
return $ext;
}
/**
* 初始化上传参数
*
* @access private
* @return void
*/
private function _setup_upload_cfgs()
{
$settings = &get_settings();
if(array_key_exists('upload_dir', $settings) && array_key_exists('upload_exts',$settings))
{
$this->_upload_dir = $settings['upload_dir'];
if (!is_dir(FCPATH.$this->_upload_dir))
{
if(!$this->_make_upload_dir())
{
log_message('debug', '上传目录创建失败');
}
}
$this->_upload_exts = str_replace(';','|',$settings['upload_exts']);
$this->_upload_exts = str_replace('*.','',$this->_upload_exts);
}
}
/**
* 创建上传路径
*
* @access private
* @param string $path 路径
* @return boolean
*/
private function _make_upload_dir($path)
{
if (!@mkdir($path))
{
return false;
}
$stat = @stat($path);
$perms = $stat['mode'] & 0007777;
@chmod($path, $perms);
return true;
}
}
/* End of file Upload.php */
/* Location: ./application/controllers/admin/Upload.php */