function getCleanRandomString($len)
{
$spotParser = new SpotParser();
$spotSigning = new SpotSigning();
return substr($spotParser->specialString(base64_encode($spotSigning->makeRandomStr($len))), 0, $len);
}
function postComment($user, $serverPrivKey, $newsgroup, $title, $comment) {
# FIXME: Het aantal nullen (minimaal 4) instelbaar maken via settings.php
# instantieer de benodigde objecten
$spotSigning = new SpotSigning();
$spotParser = new SpotParser();
# sign het messageid
$user_signature = $spotSigning->signMessage($user['privatekey'], '<' . $comment['newmessageid'] . '>');
# ook door de php server
$server_signature = $spotSigning->signMessage($serverPrivKey, $comment['newmessageid']);
$header = 'From: ' . $user['username'] . " <" . trim($user['username']) . '@spot.net>' . "\r\n";
$header .= 'Subject: Re: ' . $title . "\r\n";
$header .= 'Newsgroups: ' . $newsgroup . "\r\n";
$header .= 'Message-ID: <' . $comment['newmessageid'] . ">\r\n";
$header .= 'References: <' . $comment['inreplyto']. ">\r\n";
$header .= 'X-User-Signature: ' . $spotParser->specialString($user_signature['signature']) . "\r\n";
$header .= 'X-Server-Signature: ' . $spotParser->specialString($server_signature['signature']) . "\r\n";
$header .= 'X-User-Key: ' . $spotSigning->pubkeyToXml($user_signature['publickey']) . "\r\n";
$header .= 'X-Server-Key: ' . $spotSigning->pubkeyToXml($server_signature['publickey']) . "\r\n";
$header .= 'X-User-Rating: ' . (int) $comment['rating'] . "\r\n";
# $header .= 'X-User-Avatar: '
# Message-ID van een avatar
# $header .= 'X-User-Gravatar: '
# Hashcode van een Gravatar
$header .= "X-Newsreader: SpotWeb v" . SPOTWEB_VERSION . "\r\n";
$header .= "X-No-Archive: yes\r\n";
return $this->post(array($header, $comment['body']));
} # postComment
