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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 <huyanggang@gmail.com>
* @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 Feed控制器
*
* 主要用于控制Feed的功能表现
*
* @package STBLOG
* @subpackage Controllers
* @category Front-controllers
* @author Saturn <huyanggang@gmail.com>
* @link http://code.google.com/p/stblog/
*/
class Feed extends ST_Controller {
/**
* 是否输出全文
*
* @access private
* @var int
*/
private $_feed_full_text = 1;
/**
* 构造函数
*
* @access public
* @return void
*/
public function __construct()
{
parent::__construct();
$this->load->library('feedwriter', RSS2);
$this->_feed_full_text = intval(setting_item('feed_full_text'));
}
/**
* 请求分发
*
* @access public
* @param string $key 类别
* @param string $value slug
* @return void
*/
public function index($key = '', $value = '')
{
switch ($key)
{
case 'category':
$this->generate_category_feed($value);
break;
case 'tag':
$this->generate_tag_feed($value);
break;
case 'post':
$this->generate_post_feed($value);
break;
case 'comments':
$this->generate_comments_feed();
break;
default:
$this->generate_feed();
break;
}
}
/**
* 生成所有日志feed
*
* @access public
* @return void
*/
public function generate_feed()
{
$posts = $this->posts_mdl->get_posts('post', 'publish', NULL, 10, 0, 0, '', TRUE);
/** init */
$this->feedwriter->setTitle(setting_item('blog_title'));
$this->feedwriter->setLink(site_url());
$this->feedwriter->setDescription(setting_item('blog_description'));
$this->feedwriter->setChannelElement('language', 'zh-CN');
$this->feedwriter->setChannelElement('pubDate', date(DATE_RSS, now()));
$this->_generate($posts);
}
/**
* 生成所有评论feed
*
* @access public
* @return void
*/
public function generate_comments_feed()
{
$comments = $this->comments_mdl->get_cmts(0, 'comment', 'approved', 100, 0, 'DESC', '');
/** init */
$this->feedwriter->setTitle(setting_item('blog_title') .'所有评论');
$this->feedwriter->setLink(site_url());
$this->feedwriter->setDescription(setting_item('blog_description'));
$this->feedwriter->setChannelElement('language', 'zh-CN');
$this->feedwriter->setChannelElement('pubDate', date(DATE_RSS, now()));
if($comments->num_rows() > 0)
{
foreach($comments->result() as $comment)
{
$parent_post = $this->posts_mdl->get_post_by_id('pid', $comment->pid);
if(!$parent_post)
{
continue;
}
$title = $comment->author . '评论：' . $parent_post->title;
$permalink = site_url('posts/'. $parent_post->slug .'#comment-'. $comment->cid);
$newItem = $this->feedwriter->createNewItem();
$newItem->setTitle($title);
$newItem->setLink($permalink);
$newItem->setDate($comment->created);
$newItem->setDescription($comment->text);
$newItem->addElement('author', $comment->author);
$newItem->addElement('guid', $permalink,array('isPermaLink'=>'true'));
$this->feedwriter->addItem($newItem);
}
}
$this->feedwriter->genarateFeed();
}
/**
* 生成指定日志feed
*
* @access public
* @param string $slug
* @return void
*/
public function generate_post_feed($slug)
{
$post = $this->posts_mdl->get_post_by_id('slug', $slug);
if(empty($post))
{
show_error('发生错误：内容不存在或已被删除');
exit();
}
/** init */
$this->feedwriter->setTitle(setting_item('blog_title') .' － '. $post->title .' 的评论');
$this->feedwriter->setLink(site_url('posts/' . $post->slug));
$this->feedwriter->setDescription(Common::subStr(strip_tags(Common::get_content($post->text)), 0, 200, '...'));
$this->feedwriter->setChannelElement('language', 'zh-CN');
$this->feedwriter->setChannelElement('pubDate', date(DATE_RSS, now()));
$comments = $this->comments_mdl->get_cmts($post->pid, 'comment', 'approved', 0, 0, 'DESC', '');
if($comments->num_rows() > 0)
{
foreach($comments->result() as $comment)
{
$title = $comment->author . ' 评';
$permalink = site_url('posts/'. $post->slug .'#comment-'. $comment->cid);
$newItem = $this->feedwriter->createNewItem();
$newItem->setTitle($title);
$newItem->setLink($permalink);
$newItem->setDate($comment->created);
$newItem->setDescription($comment->text);
$newItem->addElement('author', $comment->author);
$newItem->addElement('guid', $permalink,array('isPermaLink'=>'true'));
$this->feedwriter->addItem($newItem);
}
}
$this->feedwriter->genarateFeed();
}
/**
* 生成分类中的日志feed
*
* @access public
* @param string $slug
* @return void
*/
public function generate_category_feed($slug)
{
$category = $this->metas_mdl->get_meta_by_slug($slug);
if(empty($category))
{
show_error('发生错误：分类不存在或已被删除');
exit();
}
/** init */
$this->feedwriter->setTitle(setting_item('blog_title') . ' - 分类：' .$category->name);
$this->feedwriter->setLink(site_url('category/'. $category->slug));
$this->feedwriter->setDescription($category->description);
$this->feedwriter->setChannelElement('language', 'zh-CN');
$this->feedwriter->setChannelElement('pubDate', date(DATE_RSS, now()));
$posts = $this->posts_mdl->get_posts_by_meta($slug, 'category', 'post', 'publish', 'posts.*', 10, 0, TRUE);
$this->_generate($posts);
}
/**
* 生成tag中的日志feed
*
* @access public
* @param string $slug
* @return void
*/
public function generate_tag_feed($slug)
{
$tag = $this->metas_mdl->get_meta_by_slug($slug);
if(empty($tag))
{
show_error('发生错误：标签不存在或已被删除');
exit();
}
/** init */
$this->feedwriter->setTitle(setting_item('blog_title') . ' - 标签：' .$tag->name);
$this->feedwriter->setLink(site_url('tag/'. $tag->slug));
$this->feedwriter->setDescription(setting_item('blog_description'));
$this->feedwriter->setChannelElement('language', 'zh-CN');
$this->feedwriter->setChannelElement('pubDate', date(DATE_RSS, now()));
$posts = $this->posts_mdl->get_posts_by_meta($slug, 'tag', 'post', 'publish', 'posts.*', 10, 0, TRUE);
$this->_generate($posts);
}
/**
* 处理item节点，并生成xml文档
*
* @access public
* @param string $slug
* @return void
*/
private function _generate($posts)
{
if($posts->num_rows() >0)
{
foreach($posts->result() as $post)
{
$permalink = site_url('posts/'. $post->slug);
$description = (1 == $this->_feed_full_text) ? Common::get_content($post->text) : Common::get_excerpt($post->text);
$newItem = $this->feedwriter->createNewItem();
$newItem->setTitle(htmlspecialchars($post->title));
$newItem->setLink($permalink);
$newItem->setDate($post->created);
$newItem->setDescription($description);
$newItem->addElement('author', $post->screenName);
$newItem->addElement('guid', $permalink,array('isPermaLink'=>'true'));
$this->feedwriter->addItem($newItem);
}
}
$this->feedwriter->genarateFeed();
}
}
/* End of file feed.php */
/* Location: ./application/controllers/feed.php */