am3n portfolio

From cPanel Forum:

CPU Process has a high load, with many cpanelro user taking the cpu time. Below is script to kill cpanelro’s process

#!/bin/sh
for ROUND in `ps aux | grep roundcube | awk -F " " '{print $10}' | awk -F ":" '{print $1}'`;
do
if [ $ROUND -ge 20 ]; then
pkill -u cpanelroundcube
echo "kill roundcube process roundcube";
fi
done

Put in crontab and run it every 15 or 30minutes. Or you can edit RoundCube file to fix a never ending loop caused when trying to log in with an invalid account

edit file /usr/local/cpanel/base/3rdparty/roundcube/program/lib/imap.inc

and introduced a counter in function iil_C_Login (line 416).
Bellow are the modifications i made in order to stop the loop from taking over the server.

function iil_C_Login(&$conn, $user, $password) {

    iil_PutLine($conn->fp, 'a001 LOGIN "'.iil_Escape($user).'" "'.iil_Escape($password).'"');
    $counter = 0;
    do {
        $line = iil_ReadReply($conn->fp);
        if ($line === false) {
            break;
        }else if($counter > 0){
                break;
        }
        $counter = $counter + 1;
    } while (!iil_StartsWith($line, 'a001 ', true));
    // process result
    $result = iil_ParseResult($line);
    if ($result == 0) {
        $conn->error    .= '';
        $conn->errorNum  = 0;
        return $conn->fp;
    }

    fclose($conn->fp);

    $conn->error    .= 'Authentication for ' . $user . ' failed (LOGIN): "';
    $conn->error    .= htmlspecialchars($line)."\"";
    $conn->errorNum  = $result;

    return $result;
}

With these modifications an error is returned to the user after a short while letting him know there was a problem connecting to the IMAP server. If you want to return a “Login failed” you have to modify the function iil_ParseResult (line 288) like so:

function iil_ParseResult($string) {
        $a = explode(' ', $string);
        if (count($a) > 2) {
                if (strcasecmp($a[1], 'OK') == 0) {
                        return 0;
                } else if (strcasecmp($a[1], 'NO') == 0) {
                        return -1;
                } else if (strcasecmp($a[1], 'BAD') == 0) {
                        return -2;
                } else if (strcasecmp($a[1], 'BYE') == 0) {
                        return -3;
                }
        }else if(!$string){
                return -1;
        }
        return -4;
}

Related posts:

1. PHP with SuPHP on cPanel When you activated SuPHP on cPanel servers, this is the...
2. Disk Space Usage on cPanel shows incorrect size After you delete some big files on your cpanel hosting...

This entry was posted on Thursday, July 30th, 2009 at 20:11 and is filed under Freelance. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.