initial

1 files changed, 83 insertions, 0 deletions

diff --git a/init.php b/init.php
new file mode 100755
index 0000000..0a6c1a5
--- /dev/null
+++ b/init.php
@@ -0,0 +1,83 @@
+<?php
+class Af_Unburn extends Plugin {
+	private $host;
+
+	function about() {
+		return array(null,
+			"Resolves feedburner and similar feed redirector URLs (requires CURL)",
+			"fox");
+	}
+
+	function flags() {
+		return array("needs_curl" => true);
+	}
+
+	function init($host) {
+		$this->host = $host;
+
+		$host->add_hook($host::HOOK_ARTICLE_FILTER, $this);
+	}
+
+	function hook_article_filter($article) {
+		$owner_uid = $article["owner_uid"];
+
+		if (!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 (Config::get(Config::HTTP_PROXY)) {
+					curl_setopt($ch, CURLOPT_PROXY, Config::get(Config::HTTP_PROXY));
+				}
+
+				@curl_exec($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["link"] = $real_url;
+				}
+		}
+
+		return $article;
+	}
+
+	function api_version() {
+		return 2;
+	}
+
+}