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<?php
namespace Providers;
require_once('HtmlFeed.php');
require_once('Item.php');
class Facebook extends \Providers\Provider {
protected $_cacheTimeout = '300 years';
public function __construct($feed, $options) {
parent::__construct($feed, $options);
if (isset($this->_options['force'])) {
$this->_cacheTimeout = '1 second';
}
}
protected function _getCachePath() {
return '../cache/facebook.%s';
}
protected function _fetchItems() {
$jsonContent = [];
exec('direnv exec ' .
implode(DIRECTORY_SEPARATOR, [dirname(__FILE__), '..', 'bin', 'fb-scrape']) . ' ' .
'python ' . implode(DIRECTORY_SEPARATOR, [dirname(__FILE__), '..', 'bin', 'fb-scrape', 'get-fb-content.py']) . ' ' .
escapeshellarg($this->_feed), $jsonContent);
$cacheFile = sprintf($this->_getCachePath(), $this->_feed);
if (file_exists($cacheFile)) {
$cache = unserialize($this->_getCache($cacheFile));
}
else {
$cache = [];
}
$fetched = json_decode(implode(PHP_EOL, $jsonContent), TRUE);
$cacheIDs = array_map(function($obj) {
return $obj['id'];
}, $cache);
foreach ($fetched as $fetchedItem) {
if (!in_array($fetchedItem['id'], $cacheIDs)) {
$cache[] = $fetchedItem;
}
}
return $cache;
}
protected function _mapItems($content) {
return array_map(
function ($obj) {
$texts = $obj['texts'];
if (!count($texts)) {
$texts[] = '';
}
if ($obj['images']) {
$texts = array_merge(
$texts,
array_map(function($i) {
return sprintf('<img src="%s" />', $i);
}, $obj['images'])
);
}
$item = new Item();
$item->ID = $obj['id'];
$item->Link = sprintf(
'https://facebook.com/%s',
$obj['id']
);
$item->Title = $texts[0];
$item->Text = implode('<br />', $texts);
$item->Time = $obj['time'];
return $item;
},
$content
);
}
protected function _sortContent($content) {
return $content;
}
protected function _spamFilter($items) {
return $items;
}
public function title() {
return sprintf("%s's Facebook page posts", $this->_feed);
}
}
?>
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