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- <?php
- class Af_Unburn extends Plugin {
- private $host;
- function about() {
- return array(1.0,
- "Resolves feedburner and similar feed redirector URLs (requires CURL)",
- "fox");
- }
- function flags() {
- return array("needs_curl" => true);
- }
- function init($host) {
- $this->host = $host;
- $host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
- }
- function hook_article_filter($article) {
- $owner_uid = $article["owner_uid"];
- if (defined('NO_CURL') || !function_exists("curl_init") || ini_get("open_basedir"))
- return $article;
- if ((strpos($article["link"], "feedproxy.google.com") !== FALSE ||
- strpos($article["link"], "/~r/") !== FALSE ||
- strpos($article["link"], "feedsportal.com") !== FALSE)) {
- $ch = curl_init($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($ch, CURLOPT_NOBODY, true);
- curl_setopt($ch, CURLOPT_USERAGENT, SELF_USER_AGENT);
- if (defined('_CURL_HTTP_PROXY')) {
- curl_setopt($ch, CURLOPT_PROXY, _CURL_HTTP_PROXY);
- }
- @curl_exec($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;
- }
- }
- return $article;
- }
- function api_version() {
- return 2;
- }
- }
- ?>
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