You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
412 lines
12 KiB
412 lines
12 KiB
5 years ago
|
<?php
|
||
|
/**
|
||
|
* 格式化聚合XML数据,整合自Univarsel Feed Writer
|
||
|
*
|
||
|
* @author Anis uddin Ahmad <anisniit@gmail.com>
|
||
|
* @category typecho
|
||
|
* @package Feed
|
||
|
* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
|
||
|
* @license GNU General Public License 2.0
|
||
|
* @version $Id: Feed.php 219 2008-05-27 09:06:15Z magike.net $
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
* Typecho_Feed
|
||
|
*
|
||
|
* @author qining
|
||
|
* @category typecho
|
||
|
* @package Feed
|
||
|
* @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
|
||
|
* @license GNU General Public License 2.0
|
||
|
*/
|
||
|
class Typecho_Feed
|
||
|
{
|
||
|
/** 定义RSS 1.0类型 */
|
||
|
const RSS1 = 'RSS 1.0';
|
||
|
|
||
|
/** 定义RSS 2.0类型 */
|
||
|
const RSS2 = 'RSS 2.0';
|
||
|
|
||
|
/** 定义ATOM 1.0类型 */
|
||
|
const ATOM1 = 'ATOM 1.0';
|
||
|
|
||
|
/** 定义RSS时间格式 */
|
||
|
const DATE_RFC822 = 'r';
|
||
|
|
||
|
/** 定义ATOM时间格式 */
|
||
|
const DATE_W3CDTF = 'c';
|
||
|
|
||
|
/** 定义行结束符 */
|
||
|
const EOL = "\n";
|
||
|
|
||
|
/**
|
||
|
* feed状态
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_type;
|
||
|
|
||
|
/**
|
||
|
* 字符集编码
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_charset;
|
||
|
|
||
|
/**
|
||
|
* 语言状态
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_lang;
|
||
|
|
||
|
/**
|
||
|
* 聚合地址
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_feedUrl;
|
||
|
|
||
|
/**
|
||
|
* 基本地址
|
||
|
*
|
||
|
* @access private
|
||
|
* @var unknown
|
||
|
*/
|
||
|
private $_baseUrl;
|
||
|
|
||
|
/**
|
||
|
* 聚合标题
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_title;
|
||
|
|
||
|
/**
|
||
|
* 聚合副标题
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_subTitle;
|
||
|
|
||
|
/**
|
||
|
* 版本信息
|
||
|
*
|
||
|
* @access private
|
||
|
* @var string
|
||
|
*/
|
||
|
private $_version;
|
||
|
|
||
|
/**
|
||
|
* 所有的items
|
||
|
*
|
||
|
* @access private
|
||
|
* @var array
|
||
|
*/
|
||
|
private $_items = array();
|
||
|
|
||
|
/**
|
||
|
* 创建Feed对象
|
||
|
*
|
||
|
* @access public
|
||
|
* @return void
|
||
|
*/
|
||
|
public function __construct($version, $type = self::RSS2, $charset = 'UTF-8', $lang = 'en')
|
||
|
{
|
||
|
$this->_version = $version;
|
||
|
$this->_type = $type;
|
||
|
$this->_charset = $charset;
|
||
|
$this->_lang = $lang;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 设置标题
|
||
|
*
|
||
|
* @access public
|
||
|
* @param string $title 标题
|
||
|
* @return void
|
||
|
*/
|
||
|
public function setTitle($title)
|
||
|
{
|
||
|
$this->_title = $title;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 设置副标题
|
||
|
*
|
||
|
* @access public
|
||
|
* @param string $subTitle 副标题
|
||
|
* @return void
|
||
|
*/
|
||
|
public function setSubTitle($subTitle)
|
||
|
{
|
||
|
$this->_subTitle = $subTitle;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 设置聚合地址
|
||
|
*
|
||
|
* @access public
|
||
|
* @param string $feedUrl 聚合地址
|
||
|
* @return void
|
||
|
*/
|
||
|
public function setFeedUrl($feedUrl)
|
||
|
{
|
||
|
$this->_feedUrl = $feedUrl;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 设置主页
|
||
|
*
|
||
|
* @access public
|
||
|
* @param string $baseUrl 主页地址
|
||
|
* @return void
|
||
|
*/
|
||
|
public function setBaseUrl($baseUrl)
|
||
|
{
|
||
|
$this->_baseUrl = $baseUrl;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 获取Feed时间格式
|
||
|
*
|
||
|
* @access public
|
||
|
* @param integer $stamp 时间戳
|
||
|
* @return string
|
||
|
*/
|
||
|
public function dateFormat($stamp)
|
||
|
{
|
||
|
if (self::RSS2 == $this->_type) {
|
||
|
return date(self::DATE_RFC822, $stamp);
|
||
|
} else if (self::RSS1 == $this->_type || self::ATOM1 == $this->_type) {
|
||
|
return date(self::DATE_W3CDTF, $stamp);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* $item的格式为
|
||
|
* <code>
|
||
|
* array (
|
||
|
* 'title' => 'xxx',
|
||
|
* 'content' => 'xxx',
|
||
|
* 'excerpt' => 'xxx',
|
||
|
* 'date' => 'xxx',
|
||
|
* 'link' => 'xxx',
|
||
|
* 'author' => 'xxx',
|
||
|
* 'comments' => 'xxx',
|
||
|
* 'commentsUrl'=> 'xxx',
|
||
|
* 'commentsFeedUrl' => 'xxx',
|
||
|
* )
|
||
|
* </code>
|
||
|
*
|
||
|
* @access public
|
||
|
* @param array $item
|
||
|
* @return unknown
|
||
|
*/
|
||
|
public function addItem(array $item)
|
||
|
{
|
||
|
$this->_items[] = $item;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* 输出字符串
|
||
|
*
|
||
|
* @access public
|
||
|
* @return string
|
||
|
*/
|
||
|
public function __toString()
|
||
|
{
|
||
|
$result = '<?xml version="1.0" encoding="' . $this->_charset . '"?>' . self::EOL;
|
||
|
|
||
|
if (self::RSS1 == $this->_type) {
|
||
|
$result .= '<rdf:RDF
|
||
|
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
|
||
|
xmlns="http://purl.org/rss/1.0/"
|
||
|
xmlns:dc="http://purl.org/dc/elements/1.1/">' . self::EOL;
|
||
|
|
||
|
$content = '';
|
||
|
$links = array();
|
||
|
$lastUpdate = 0;
|
||
|
|
||
|
foreach ($this->_items as $item) {
|
||
|
$content .= '<item rdf:about="' . $item['link'] . '">' . self::EOL;
|
||
|
$content .= '<title>' . htmlspecialchars($item['title']) . '</title>' . self::EOL;
|
||
|
$content .= '<link>' . $item['link'] . '</link>' . self::EOL;
|
||
|
$content .= '<dc:date>' . $this->dateFormat($item['date']) . '</dc:date>' . self::EOL;
|
||
|
$content .= '<description>' . strip_tags($item['content']) . '</description>' . self::EOL;
|
||
|
if (!empty($item['suffix'])) {
|
||
|
$content .= $item['suffix'];
|
||
|
}
|
||
|
$content .= '</item>' . self::EOL;
|
||
|
|
||
|
$links[] = $item['link'];
|
||
|
|
||
|
if ($item['date'] > $lastUpdate) {
|
||
|
$lastUpdate = $item['date'];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$result .= '<channel rdf:about="' . $this->_feedUrl . '">
|
||
|
<title>' . htmlspecialchars($this->_title) . '</title>
|
||
|
<link>' . $this->_baseUrl . '</link>
|
||
|
<description>' . htmlspecialchars($this->_subTitle) . '</description>
|
||
|
<items>
|
||
|
<rdf:Seq>' . self::EOL;
|
||
|
|
||
|
foreach ($links as $link) {
|
||
|
$result .= '<rdf:li resource="' . $link . '"/>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
$result .= '</rdf:Seq>
|
||
|
</items>
|
||
|
</channel>' . self::EOL;
|
||
|
|
||
|
$result .= $content . '</rdf:RDF>';
|
||
|
|
||
|
} else if (self::RSS2 == $this->_type) {
|
||
|
$result .= '<rss version="2.0"
|
||
|
xmlns:content="http://purl.org/rss/1.0/modules/content/"
|
||
|
xmlns:dc="http://purl.org/dc/elements/1.1/"
|
||
|
xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
|
||
|
xmlns:atom="http://www.w3.org/2005/Atom"
|
||
|
xmlns:wfw="http://wellformedweb.org/CommentAPI/">
|
||
|
<channel>' . self::EOL;
|
||
|
|
||
|
$content = '';
|
||
|
$lastUpdate = 0;
|
||
|
|
||
|
foreach ($this->_items as $item) {
|
||
|
$content .= '<item>' . self::EOL;
|
||
|
$content .= '<title>' . htmlspecialchars($item['title']) . '</title>' . self::EOL;
|
||
|
$content .= '<link>' . $item['link'] . '</link>' . self::EOL;
|
||
|
$content .= '<guid>' . $item['link'] . '</guid>' . self::EOL;
|
||
|
$content .= '<pubDate>' . $this->dateFormat($item['date']) . '</pubDate>' . self::EOL;
|
||
|
$content .= '<dc:creator>' . htmlspecialchars($item['author']->screenName) . '</dc:creator>' . self::EOL;
|
||
|
|
||
|
if (!empty($item['category']) && is_array($item['category'])) {
|
||
|
foreach ($item['category'] as $category) {
|
||
|
$content .= '<category><![CDATA[' . $category['name'] . ']]></category>' . self::EOL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!empty($item['excerpt'])) {
|
||
|
$content .= '<description><![CDATA[' . strip_tags($item['excerpt']) . ']]></description>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
if (!empty($item['content'])) {
|
||
|
$content .= '<content:encoded xml:lang="' . $this->_lang . '"><![CDATA['
|
||
|
. self::EOL .
|
||
|
$item['content'] . self::EOL .
|
||
|
']]></content:encoded>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
if (isset($item['comments']) && strlen($item['comments']) > 0) {
|
||
|
$content .= '<slash:comments>' . $item['comments'] . '</slash:comments>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
$content .= '<comments>' . $item['link'] . '#comments</comments>' . self::EOL;
|
||
|
if (!empty($item['commentsFeedUrl'])) {
|
||
|
$content .= '<wfw:commentRss>' . $item['commentsFeedUrl'] . '</wfw:commentRss>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
if (!empty($item['suffix'])) {
|
||
|
$content .= $item['suffix'];
|
||
|
}
|
||
|
|
||
|
$content .= '</item>' . self::EOL;
|
||
|
|
||
|
if ($item['date'] > $lastUpdate) {
|
||
|
$lastUpdate = $item['date'];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$result .= '<title>' . htmlspecialchars($this->_title) . '</title>
|
||
|
<link>' . $this->_baseUrl . '</link>
|
||
|
<atom:link href="' . $this->_feedUrl . '" rel="self" type="application/rss+xml" />
|
||
|
<language>' . $this->_lang . '</language>
|
||
|
<description>' . htmlspecialchars($this->_subTitle) . '</description>
|
||
|
<lastBuildDate>' . $this->dateFormat($lastUpdate) . '</lastBuildDate>
|
||
|
<pubDate>' . $this->dateFormat($lastUpdate) . '</pubDate>' . self::EOL;
|
||
|
|
||
|
$result .= $content . '</channel>
|
||
|
</rss>';
|
||
|
|
||
|
} else if (self::ATOM1 == $this->_type) {
|
||
|
$result .= '<feed xmlns="http://www.w3.org/2005/Atom"
|
||
|
xmlns:thr="http://purl.org/syndication/thread/1.0"
|
||
|
xml:lang="' . $this->_lang . '"
|
||
|
xml:base="' . $this->_baseUrl . '"
|
||
|
>' . self::EOL;
|
||
|
|
||
|
$content = '';
|
||
|
$lastUpdate = 0;
|
||
|
|
||
|
foreach ($this->_items as $item) {
|
||
|
$content .= '<entry>' . self::EOL;
|
||
|
$content .= '<title type="html"><![CDATA[' . $item['title'] . ']]></title>' . self::EOL;
|
||
|
$content .= '<link rel="alternate" type="text/html" href="' . $item['link'] . '" />' . self::EOL;
|
||
|
$content .= '<id>' . $item['link'] . '</id>' . self::EOL;
|
||
|
$content .= '<updated>' . $this->dateFormat($item['date']) . '</updated>' . self::EOL;
|
||
|
$content .= '<published>' . $this->dateFormat($item['date']) . '</published>' . self::EOL;
|
||
|
$content .= '<author>
|
||
|
<name>' . $item['author']->screenName . '</name>
|
||
|
<uri>' . $item['author']->url . '</uri>
|
||
|
</author>' . self::EOL;
|
||
|
|
||
|
if (!empty($item['category']) && is_array($item['category'])) {
|
||
|
foreach ($item['category'] as $category) {
|
||
|
$content .= '<category scheme="' . $category['permalink'] . '" term="' . $category['name'] . '" />' . self::EOL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!empty($item['excerpt'])) {
|
||
|
$content .= '<summary type="html"><![CDATA[' . htmlspecialchars($item['excerpt']) . ']]></summary>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
if (!empty($item['content'])) {
|
||
|
$content .= '<content type="html" xml:base="' . $item['link'] . '" xml:lang="' . $this->_lang . '"><![CDATA['
|
||
|
. self::EOL .
|
||
|
$item['content'] . self::EOL .
|
||
|
']]></content>' . self::EOL;
|
||
|
}
|
||
|
|
||
|
if (isset($item['comments']) && strlen($item['comments']) > 0) {
|
||
|
$content .= '<link rel="replies" type="text/html" href="' . $item['link'] . '#comments" thr:count="' . $item['comments'] . '" />' . self::EOL;
|
||
|
|
||
|
if (!empty($item['commentsFeedUrl'])) {
|
||
|
$content .= '<link rel="replies" type="application/atom+xml" href="' . $item['commentsFeedUrl'] . '" thr:count="' . $item['comments'] . '"/>' . self::EOL;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (!empty($item['suffix'])) {
|
||
|
$content .= $item['suffix'];
|
||
|
}
|
||
|
|
||
|
$content .= '</entry>' . self::EOL;
|
||
|
|
||
|
if ($item['date'] > $lastUpdate) {
|
||
|
$lastUpdate = $item['date'];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$result .= '<title type="text">' . htmlspecialchars($this->_title) . '</title>
|
||
|
<subtitle type="text">' . htmlspecialchars($this->_subTitle) . '</subtitle>
|
||
|
<updated>' . $this->dateFormat($lastUpdate) . '</updated>
|
||
|
<generator uri="http://typecho.org/" version="' . $this->_version . '">Typecho</generator>
|
||
|
<link rel="alternate" type="text/html" href="' . $this->_baseUrl . '" />
|
||
|
<id>' . $this->_feedUrl . '</id>
|
||
|
<link rel="self" type="application/atom+xml" href="' . $this->_feedUrl . '" />
|
||
|
';
|
||
|
$result .= $content . '</feed>';
|
||
|
}
|
||
|
|
||
|
return $result;
|
||
|
}
|
||
|
}
|