/**
* Track the referer to a specific Entry ID
*
* @access public
* @param int Entry ID
* @return null
*/
function serendipity_track_referrer($entry = 0)
{
global $serendipity;
// Tracking disabled.
if ($serendipity['trackReferrer'] === false) {
return;
}
if (isset($_SERVER['HTTP_REFERER'])) {
if (stristr($_SERVER['HTTP_REFERER'], $serendipity['baseURL']) !== false) {
return;
}
if (!isset($serendipity['_blockReferer']) || !is_array($serendipity['_blockReferer'])) {
// Only generate an array once per call
$serendipity['_blockReferer'] = array();
$serendipity['_blockReferer'] = @explode(';', $serendipity['blockReferer']);
}
$url_parts = parse_url($_SERVER['HTTP_REFERER']);
$host_parts = explode('.', $url_parts['host']);
if (!$url_parts['host'] || strstr($url_parts['host'], $_SERVER['SERVER_NAME'])) {
return;
}
foreach ($serendipity['_blockReferer'] as $idx => $hostname) {
if (@strstr($url_parts['host'], $hostname)) {
return;
}
}
if (rand(0, 100) < 1) {
serendipity_track_referrer_gc();
}
$ts = serendipity_db_get_interval('ts');
$interval = serendipity_db_get_interval('interval', 900);
$suppressq = "SELECT count(1)\n FROM {$serendipity['dbPrefix']}suppress\n WHERE ip = '" . serendipity_db_escape_string($_SERVER['REMOTE_ADDR']) . "'\n AND scheme = '" . serendipity_db_escape_string($url_parts['scheme']) . "'\n AND port = '" . serendipity_db_escape_string($url_parts['port']) . "'\n AND host = '" . serendipity_db_escape_string($url_parts['host']) . "'\n AND path = '" . serendipity_db_escape_string($url_parts['path']) . "'\n AND query = '" . serendipity_db_escape_string($url_parts['query']) . "'\n AND last > {$ts} - {$interval}";
$suppressp = "DELETE FROM {$serendipity['dbPrefix']}suppress\n WHERE ip = '" . serendipity_db_escape_string($_SERVER['REMOTE_ADDR']) . "'\n AND scheme = '" . serendipity_db_escape_string($url_parts['scheme']) . "'\n AND host = '" . serendipity_db_escape_string($url_parts['host']) . "'\n AND port = '" . serendipity_db_escape_string($url_parts['port']) . "'\n AND query = '" . serendipity_db_escape_string($url_parts['query']) . "'\n AND path = '" . serendipity_db_escape_string($url_parts['path']) . "'";
$suppressu = "INSERT INTO {$serendipity['dbPrefix']}suppress\n (ip, last, scheme, host, port, path, query)\n VALUES (\n '" . serendipity_db_escape_string($_SERVER['REMOTE_ADDR']) . "',\n {$ts},\n '" . serendipity_db_escape_string($url_parts['scheme']) . "',\n '" . serendipity_db_escape_string($url_parts['host']) . "',\n '" . serendipity_db_escape_string($url_parts['port']) . "',\n '" . serendipity_db_escape_string($url_parts['path']) . "',\n '" . serendipity_db_escape_string($url_parts['query']) . "'\n )";
$count = serendipity_db_query($suppressq, true);
if ($count[0] == 0) {
serendipity_db_query($suppressu);
return;
}
serendipity_db_query($suppressp);
serendipity_db_query($suppressu);
serendipity_track_url('referrers', $_SERVER['HTTP_REFERER'], $entry);
}
}
<?php
# $Id: exit.php 2316 2008-08-22 09:20:13Z garvinhicking $
# Copyright (c) 2003-2005, Jannis Hermanns (on behalf the Serendipity Developer Team)
# All rights reserved. See LICENSE file for licensing details
include 'serendipity_config.inc.php';
$url = $serendipity['baseURL'];
if (isset($_GET['url_id']) && !empty($_GET['url_id']) && isset($_GET['entry_id']) && !empty($_GET['entry_id'])) {
// See if the submitted link is in our database and should be tracked
$links = serendipity_db_query("SELECT link FROM {$serendipity['dbPrefix']}references WHERE id = " . (int) $_GET['url_id'] . " AND entry_id = " . (int) $_GET['entry_id'], true);
if (is_array($links) && isset($links['link'])) {
// URL is valid. Track it.
$url = str_replace('&', '&', $links['link']);
serendipity_track_url('exits', $url, $_GET['entry_id']);
} elseif (isset($_GET['url']) && !empty($_GET['url'])) {
// URL is invalid. But a URL-location was sent, so we want to redirect the user kindly.
$url = str_replace('&', '&', base64_decode($_GET['url']));
}
} elseif (isset($_GET['url']) && !empty($_GET['url'])) {
// No entry-link ID was submitted. Possibly a spammer tried to mis-use the script to get into the top-list.
$url = strip_tags(str_replace('&', '&', base64_decode($_GET['url'])));
}
if (serendipity_isResponseClean($url)) {
header('HTTP/1.0 301 Moved Permanently');
header('Status: 301 Moved Permanently');
header('Location: ' . $url);
}
exit;
/* vim: set sts=4 ts=4 expandtab : */
