<?php
/**
* Akismet 反垃圾评论插件 for Typecho
*
* @package Akismet
* @author qining
* @version 1.1.4
* @link http://typecho.org
*/
class Akismet_Plugin implements Typecho_Plugin_Interface
{
/**
* 激活插件方法,如果激活失败,直接抛出异常
*
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function activate()
{
if (false == Typecho_Http_Client::get()) {
throw new Typecho_Plugin_Exception(_t('对不起, 您的主机不支持 php-curl 扩展而且没有打开 allow_url_fopen 功能, 无法正常使用此功能'));
}
Typecho_Plugin::factory('Widget_Feedback')->comment = array('Akismet_Plugin', 'filter');
Typecho_Plugin::factory('Widget_Feedback')->trackback = array('Akismet_Plugin', 'filter');
Typecho_Plugin::factory('Widget_XmlRpc')->pingback = array('Akismet_Plugin', 'filter');
Typecho_Plugin::factory('Widget_Comments_Edit')->mark = array('Akismet_Plugin', 'mark');
return _t('请配置此插件的API KEY, 以使您的反垃圾策略生效');
}
/**
* 禁用插件方法,如果禁用失败,直接抛出异常
*
* @static
* @access public
* @return void
* @throws Typecho_Plugin_Exception
*/
public static function deactivate(){}
/**
* 获取插件配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form 配置面板
* @return void
*/
public static function config(Typecho_Widget_Helper_Form $form)
{
$key = new Typecho_Widget_Helper_Form_Element_Textarea('key', NULL, NULL, _t('服务密钥'), _t('此密钥需要向服务提供商注册<br />
它是一个用于表明您合法用户身份的字符串'));
$form->addInput($key->addRule('required', _t('您必须填写一个服务密钥'))
->addRule(array('Akismet_Plugin', 'validate'), _t('您使用的服务密钥错误')));
$url = new Typecho_Widget_Helper_Form_Element_Text('url', NULL, 'http://rest.akismet.com',
_t('服务地址'), _t('这是反垃圾评论服务提供商的服务器地址<br />
我们推荐您使用 <a href="http://akismet.com">Akismet</a> 或者 <a href="http://antispam.typepad.com">Typepad</a> 的反垃圾服务'));
$form->addInput($url->addRule('url', _t('您使用的地址格式错误')));
}
/**
* 个人用户的配置面板
*
* @access public
* @param Typecho_Widget_Helper_Form $form
* @return void
*/
public static function personalConfig(Typecho_Widget_Helper_Form $form){}
/**
* 验证api的key值
*
* @access public
* @param string $key 服务密钥
* @return boolean
*/
public static function validate($key)
{
$options = Typecho_Widget::widget('Widget_Options');
$url = Typecho_Request::getInstance()->url;
$data = array(
'key' => $key,
'blog' => $options->siteUrl
);
$client = Typecho_Http_Client::get('Curl', 'Socket');
if (false != $client) {
$client->setData($data)
->setHeader('User-Agent', $options->generator . ' | Akismet/1.1')
->send(Typecho_Common::url('/1.1/verify-key', $url));
if ('valid' == $client->getResponseBody()) {
return true;
}
}
return false;
}
/**
* 标记评论状态时的插件接口
*
* @access public
* @param array $comment 评论数据的结构体
* @param Typecho_Widget $commentWidget 评论组件
* @param string $status 评论状态
* @return void
*/
public static function mark($comment, $commentWidget, $status)
{
if ('spam' == $comment['status'] && $status != 'spam') {
self::filter($comment, $commentWidget, NULL, 'submit-ham');
} else if ('spam' != $comment['status'] && $status == 'spam') {
self::filter($comment, $commentWidget, NULL, 'submit-spam');
}
}
/**
* 评论过滤器
*
* @access public
* @param array $comment 评论结构
* @param Typecho_Widget $post 被评论的文章
* @param array $result 返回的结果上下文
* @param string $api api地址
* @return void
*/
public static function filter($comment, $post, $result, $api = 'comment-check')
{
$comment = empty($result) ? $comment : $result;
$options = Typecho_Widget::widget('Widget_Options');
$url = $options->plugin('Akismet')->url;
$key = $options->plugin('Akismet')->key;
$allowedServerVars = 'comment-check' == $api ? array(
'SCRIPT_URI',
'HTTP_HOST',
'HTTP_USER_AGENT',
'HTTP_ACCEPT',
'HTTP_ACCEPT_LANGUAGE',
'HTTP_ACCEPT_ENCODING',
'HTTP_ACCEPT_CHARSET',
'HTTP_KEEP_ALIVE',
'HTTP_CONNECTION',
'HTTP_CACHE_CONTROL',
'HTTP_PRAGMA',
'HTTP_DATE',
'HTTP_EXPECT',
'HTTP_MAX_FORWARDS',
'HTTP_RANGE',
'CONTENT_TYPE',
'CONTENT_LENGTH',
'SERVER_SIGNATURE',
'SERVER_SOFTWARE',
'SERVER_NAME',
'SERVER_ADDR',
'SERVER_PORT',
'REMOTE_PORT',
'GATEWAY_INTERFACE',
'SERVER_PROTOCOL',
'REQUEST_METHOD',
'QUERY_STRING',
'REQUEST_URI',
'SCRIPT_NAME',
'REQUEST_TIME'
) : array();
$data = array(
'blog' => $options->siteUrl,
'user_ip' => $comment['ip'],
'user_agent' => $comment['agent'],
'referrer' => Typecho_Request::getInstance()->getReferer(),
'permalink' => $post->permalink,
'comment_type' => $comment['type'],
'comment_author' => $comment['author'],
'comment_author_email' => $comment['mail'],
'comment_author_url' => $comment['url'],
'comment_content' => $comment['text']
);
foreach ($allowedServerVars as $val) {
if (array_key_exists($val, $_SERVER)) {
$data[$val] = $_SERVER[$val];
}
}
try {
$client = Typecho_Http_Client::get();
if (false != $client && $key) {
$params = parse_url($url);
$url = $params['scheme'] . '://' . $key . '.' . $params['host'] . (isset($params['path']) ? $params['path'] : NULL);
$client->setHeader('User-Agent', $options->generator . ' | Akismet/1.1')
->setTimeout(5)
->setData($data)
->send(Typecho_Common::url('/1.1/' . $api, $url));
if ('true' == $client->getResponseBody()) {
$comment['status'] = 'spam';
}
}
} catch (Typecho_Http_Client_Exception $e) {
//do nothing
error_log($e->getMessage());
}
return $comment;
}
}
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