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|
<?php
class FilterBridge extends FeedExpander {
const MAINTAINER = 'Frenzie';
const NAME = 'Filter';
const CACHE_TIMEOUT = 3600; // 1h
const DESCRIPTION = 'Filters a feed of your choice';
const URI = 'https://github.com/rss-bridge/rss-bridge';
const PARAMETERS = array(array(
'url' => array(
'name' => 'Feed URL',
'required' => true,
),
'filter' => array(
'name' => 'Filter item title (regular expression)',
'required' => false,
),
'filter_type' => array(
'name' => 'Filter type',
'type' => 'list',
'required' => false,
'values' => array(
'Permit' => 'permit',
'Block' => 'block',
),
'defaultValue' => 'permit',
),
'title_from_content' => array(
'name' => 'Generate title from content',
'type' => 'checkbox',
'required' => false,
)
));
protected function parseItem($newItem){
$item = parent::parseItem($newItem);
if($this->getInput('title_from_content') && array_key_exists('content', $item)) {
$content = str_get_html($item['content']);
$pos = strpos($item['content'], ' ', 50);
$item['title'] = substr(
$content->plaintext,
0,
$pos
);
if(strlen($content->plaintext) >= $pos) {
$item['title'] .= '...';
}
}
switch(true) {
case $this->getFilterType() === 'permit':
if (preg_match($this->getFilter(), $item['title'])) {
return $item;
}
break;
case $this->getFilterType() === 'block':
if (!preg_match($this->getFilter(), $item['title'])) {
return $item;
}
break;
}
return null;
}
protected function getFilter(){
return '/' . $this->getInput('filter') . '/';
}
protected function getFilterType(){
return $this->getInput('filter_type');
}
public function getURI(){
$url = $this->getInput('url');
if(empty($url)) {
$url = parent::getURI();
}
return $url;
}
public function collectData(){
if($this->getInput('url') && substr($this->getInput('url'), 0, strlen('http')) !== 'http') {
// just in case someone find a way to access local files by playing with the url
returnClientError('The url parameter must either refer to http or https protocol.');
}
try{
$this->collectExpandableDatas($this->getURI());
} catch (Exception $e) {
$this->collectExpandableDatas($this->getURI());
}
}
}
|
