Rss-Bridge/bridges/FilterBridge.php
logmanoriginal 3a496e3b18 [FilterBridge] Add option to build title from content
Adds a new option '&title_from_content=on' to build the title for feed
items from the feeds content. The title is generated from the first
whitespace after 50 characters of the content or the entire content if
the total size is lower than 50 characters.

References #587
2018-08-04 20:46:59 +02:00

100 lines
2.2 KiB
PHP

<?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 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 (HttpException $e) {
$this->collectExpandableDatas($this->getURI());
}
}
}