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<?php
class Af_Unburn extends Plugin {
private $link;
private $host;
function about() {
return array(1.0,
"Resolves feedburner and similar feed redirector URLs (requires CURL)",
"fox");
}
function init($host) {
$this->link = $host->get_link();
$this->host = $host;
$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
}
function hook_article_filter($article) {
$owner_uid = $article["owner_uid"];
if (!function_exists("curl_init"))
return $article;
if ((strpos($article["link"], "feedproxy.google.com") !== FALSE ||
strpos($article["link"], "/~r/") !== FALSE ||
strpos($article["link"], "feedsportal.com") !== FALSE)) {
if (strpos($article["plugin_data"], "unburn,$owner_uid:") === FALSE) {
$ch = curl_init(geturl($article["link"]));
curl_setopt($ch, CURLOPT_TIMEOUT, 5);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
//curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
$contents = @curl_exec($ch);
$real_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
curl_close($ch);
if ($real_url) {
/* remove the rest of it */
$query = parse_url($real_url, PHP_URL_QUERY);
if ($query && strpos($query, "utm_source") !== FALSE) {
$args = array();
parse_str($query, $args);
foreach (array("utm_source", "utm_medium", "utm_campaign") as $param) {
if (isset($args[$param])) unset($args[$param]);
}
$new_query = http_build_query($args);
if ($new_query != $query) {
$real_url = str_replace("?$query", "?$new_query", $real_url);
}
}
$real_url = preg_replace("/\?$/", "", $real_url);
$article["plugin_data"] = "unburn,$owner_uid:" . $article["plugin_data"];
$article["link"] = $real_url;
}
} else if (isset($article["stored"]["link"])) {
$article["link"] = $article["stored"]["link"];
}
}
return $article;
}
function geturl($url){
(function_exists('curl_init')) ? '' : die('cURL Must be installed for geturl function to work. Ask your host to enable it or uncomment extension=php_curl.dll in php.ini');
$curl = curl_init();
$header[0] = "Accept: text/xml,application/xml,application/xhtml+xml,";
$header[0] .= "text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
$header[] = "Cache-Control: max-age=0";
$header[] = "Connection: keep-alive";
$header[] = "Keep-Alive: 300";
$header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
$header[] = "Accept-Language: en-us,en;q=0.5";
$header[] = "Pragma: ";
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0 Firefox/5.0');
curl_setopt($curl, CURLOPT_HTTPHEADER, $header);
curl_setopt($curl, CURLOPT_HEADER, true);
curl_setopt($curl, CURLOPT_REFERER, $url);
curl_setopt($curl, CURLOPT_ENCODING, 'gzip,deflate');
curl_setopt($curl, CURLOPT_AUTOREFERER, true);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
//curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); //CURLOPT_FOLLOWLOCATION Disabled...
curl_setopt($curl, CURLOPT_TIMEOUT, 60);
$html = curl_exec($curl);
$status = curl_getinfo($curl);
curl_close($curl);
if($status['http_code']!=200){
if($status['http_code'] == 301 || $status['http_code'] == 302) {
list($header) = explode("\r\n\r\n", $html, 2);
$matches = array();
preg_match("/(Location:|URI:)[^(\n)]*/", $header, $matches);
$url = trim(str_replace($matches[1],"",$matches[0]));
$url_parsed = parse_url($url);
return (isset($url_parsed))? geturl($url, $referer):'';
}
$oline='';
foreach($status as $key=>$eline){$oline.='['.$key.']'.$eline.' ';}
$line =$oline." \r\n ".$url."\r\n-----------------\r\n";
$handle = @fopen('./curl.error.log', 'a');
fwrite($handle, $line);
return FALSE;
}
return $url;
}
}
?>
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