/**
* Enter description here...
*
*/
function handlePostTrackback($uri, $date)
{
global $PIVOTX;
$message = "";
// Using our integrated Trackback Spam Killer
killtrackbackspam();
// Initialise the IP blocklist.
$blocklist = new IPBlock();
// checking if IP address of trackbacking site is blocked
if ($blocklist->isBlocked($_SERVER['REMOTE_ADDR'])) {
debug("Blocked user from " . $_SERVER['REMOTE_ADDR'] . " tried to trackback");
respondExit("Your IP-address has been blocked, so you are not" . " allowed to leave trackbacks on this site. We know IP-adresses can easily be faked," . " but it helps.", 1);
}
// Get the entry from the DB..
$entry = $PIVOTX['db']->read_entry($uri, $date);
// Exit if non-existing ID supplied
if (empty($entry['code'])) {
respondExit('Entry not found', 1);
}
// Keep original excerpt for spam checks ...
$orig_excerpt = $_POST['excerpt'];
// Strip out HTML from input and convert to utf-8.
$_POST['blog_name'] = i18n_str_to_utf8(strip_tags($_POST['blog_name']));
$_POST['title'] = i18n_str_to_utf8(strip_tags($_POST['title']));
$_POST['url'] = strip_tags($_POST['url']);
if ($PIVOTX['config']->get('allow_html_in_comments') == 1) {
$_POST['excerpt'] = stripTagsAttributes($_POST['excerpt'], "*");
} else {
$_POST['excerpt'] = stripTagsAttributes($_POST['excerpt'], "<b><em><i><strong>");
}
$_POST['excerpt'] = i18n_str_to_utf8($_POST['excerpt']);
$my_trackback = array('entry_uid' => intval($entry['code']), 'name' => $_POST['blog_name'], 'title' => $_POST['title'], 'url' => trim($_POST['url']), 'ip' => $_SERVER['REMOTE_ADDR'], 'date' => formatDate("", "%year%-%month%-%day%-%hour24%-%minute%"), 'excerpt' => trimText($_POST['excerpt'], 255, false, true, false));
// Exit if no URL is given - need to know URL to foreign entry that
// trackbacked us.
if (empty($my_trackback['url'])) {
respondExit('No URL (url) parameter given', 1);
}
//here we do a check to prevent double entries...
$duplicate = FALSE;
if (isset($entry['trackbacks']) && count($entry['trackbacks']) > 0) {
foreach ($entry['trackbacks'] as $loop_trackback) {
$diff = 1 / (min(strlen($loop_trackback['excerpt']), 200) / (levenshtein(substr($loop_trackback['excerpt'], 0, 200), substr($my_trackback['excerpt'], 0, 200)) + 1));
if ($diff < 0.25 && $loop_trackback['ip'] == $my_trackback['ip']) {
$duplicate = TRUE;
break;
}
}
}
if (!$duplicate) {
// update the current entry
$entry['trackbacks'][] = $my_trackback;
$post = TRUE;
} else {
$message = 'Your trackback has not been stored, because it seems to be a duplicate';
$post = FALSE;
}
if ($PIVOTX['config']->get('maxhrefs') > 0) {
$low_excerpt = strtolower(trackbackFormat($orig_excerpt));
if (substr_count($low_excerpt, "href=") > $PIVOTX['config']->get('maxhrefs')) {
$message = 'The maximum number of hyperlinks was exceeded. Are you spamming us?';
$post = FALSE;
}
}
if ($post) {
$PIVOTX['db']->set_entry($entry);
$PIVOTX['db']->save_entry(FALSE);
// do not update the index.
// Remove the compiled/parsed pages from the cache.
if ($PIVOTX['config']->get('smarty_cache')) {
$PIVOTX['template']->clear_cache();
}
// send mail..
sendMailTrackback($my_trackback);
debug("A trackback from '" . $my_trackback['name'] . "' added.");
//update the 'last trackbacks' file
if (isset($my_trackback)) {
generateLastTrackbacks($my_trackback);
}
// Clean the simple cache..
$PIVOTX['cache']->clear();
// Remove the compiled/parsed pages from the cache.
if ($PIVOTX['config']->get('smarty_cache')) {
$PIVOTX['template']->clear_cache();
}
// After messing about with the trackbacks, clear the cache.
$PIVOTX['cache']->cache['entries'] = array();
respondExit();
} else {
respondExit($message, 1);
}
}
$low_trackback = strtolower(trackback_format($my_trackback['excerpt']));
if (substr_count($low_trackback, "href=") > 2) {
$message = lang('trackback', 'too_many_hrefs');
unset($Pivot_Vars['post']);
}
}
if (isset($Pivot_Vars['post'])) {
$db->set_entry($entry);
// send mail..
send_mail_tb();
// switch to weblog's language (it might be changed in the meantime)
LoadWeblogLanguage($Weblogs[$Current_weblog]['language']);
debug("trackback from '" . $Pivot_Vars['piv_name'] . "' added.");
$db->save_entry(FALSE);
// do not update the index.
//update the 'last trackbacks' file
if (isset($my_trackback)) {
generate_last_trackbacks($my_trackback);
}
// remove it from cache, to make sure the latest one is used.
$db->unread_entry($entry['code']);
// regenerate entry, frontpage and archive..
generate_pages($Pivot_Vars['tb_id'], TRUE, TRUE, TRUE, FALSE, FALSE);
add_hook("trackback", "post");
execute_hook("trackback", "post", $Pivot_Vars, $entry);
respondExit();
} else {
add_hook("trackback", "post");
execute_hook("trackback", "post", $Pivot_Vars, "");
respondExit($message, 1);
}
