6.0.0-git
2018-12-17
Last Modified 2013-09-04 by Jan Schneider

This information is valid for Horde 3 only. See AltQuotaH4 for Horde 4 or AltQuota for Horde 5 and later.

Notes

This describes modifications to IMP quota that can be configured to use one or two different devices (file systems). If using two devices, one is for INBOX and the other is for IMAP folders.

You can use one or two different devices (file systems) with quota enabled. This allows different quota values for INBOX and IMAP folders. Users use to keep messages on the INBOX. The bigger the quota, the bigger the INBOX file, with performance hit. In the other hand, messages are documents that must be filed, so you may want to give more space for IMAP folders than for the INBOX.

Uses system quota command.

Tested on Debian 5.0.5 (lenny), horde-3.3.8 and imp-h3-4.3.7.


Modifications

File Function(s)
imp/lib/Quota/command.php IMP_Quota_command, getQuota
imp/lib/IMP.php quota, quotaData
imp/lib/Quota.php getQuota, getMessages
imp/config/servers.php

You must modify the four files. Don't forget to change permission to each of them:

chown www-data command.php

Where www-data is the web user (Apache or equivalent).

You may need to give permission to your web user to execute quota:

chmod  +s  /usr/bin/quota

Last updated 2010-06-28


Descriptions


command.php

  • Function IMP_Quota_command accepts 2 new parameters:
'dev_inbx' => User´s INBOX file system device - REQUIRED
If you have INBOX and IMAP folders in the same device, use ONLY this parameter.
If you have INBOX and IMAP folders in different devices and quota enabled on them you MUST use 'dev_fldrs' parameter also.
Usually maps to /var/mail, /var/spool/mail.
Examples: '/dev/hda6', '/dev/sdb2', '/dev/md2', '/dev/mapper/VOL1-VarM'.
'dev_fldrs' => User´s home file system device - OPTIONAL
Use only if you have INBOX and IMAP folders in different devices and quota enabled on them. Used for IMAP folders. Usually maps to /home.
Examples: '/dev/hda7', '/dev/sda3', '/dev/md1', '/dev/mapper/VOL2-Home'.
Obsolete parameters: grep_path, partition
* function getQuota:
Function now takes care of exceeded quotas, quota not defined for that user and if it is using one or two devices (dev_inbx, dev_fldrs).

Backup your original imp/lib/Quota/command.php and create a new command.php with the following code:
<?php
/**
 * Implementation of the Quota API for IMAP servers with a unix quota command.
 * This requires a modified "quota" command that allows the httpd server
 * account to get quotas for other users. It also requires that your
 * web server and imap server be the same server or at least have shared
 * authentication and file servers (e.g. via NIS/NFS).  And last, it (as
 * written) requires the POSIX PHP extensions.
 *
 * You must configure this driver in horde/imp/config/servers.php.  The
 * driver supports the following parameters:
 *   'quota_path' => Path to the quota binary - REQUIRED
 *   'dev_inbx'   => User´s INBOX file system device  - REQUIRED
 *                   If you have INBOX and IMAP folders in the same 
 *                   device, use ONLY this parameter. 
 *                   If you have INBOX and IMAP folders in different 
 *                   devices and quota enabled on them you MUST use 
 *                   'dev_fldrs' parameter also.
 *                   Usually: /,  /var/mail,  /var/spool/mail
 *                   Examples: '/dev/hda6', '/dev/sdb2', '/dev/md2', 
 *                             '/dev/mapper/VOL1-VarM'
 *   'dev_fldrs'  => User´s home file system device  - OPTIONAL
 *                   Use only if you have INBOX and IMAP folders in 
 *                   different devices and quota enabled on them.
 *                   For IMAP folders. Usually: /home
 *                   Examples: '/dev/hda7', '/dev/sda3', '/dev/md1', 
 *                             '/dev/mapper/VOL2-Home'
 *
 * -------------------
 * Modified by Mauricio Jose T. Tecles <mtecles@biof.ufrj.br>
 * Functions IMP_Quota_command, blockSize, getQuota
 * Updated 2010 February 28
 * 
 * -------------------
 * $Horde: imp/lib/Quota/command.php,v 1.11.10.17 2009-01-06 15:24:11 jan Exp $
 *
 * Copyright 2002-2009 The Horde Project (http://www.horde.org/)
 *
 * See the enclosed file COPYING for license information (GPL). If you
 * did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
 *
 * @author  Eric Rostetter <eric.rostetter@physics.utexas.edu>
 * @package IMP_Quota
 */
class IMP_Quota_command extends IMP_Quota {

    /**
     * Constructor
     *
     * @param array $params  Hash containing connection parameters.
     */
    function IMP_Quota_command($params = array())
    {
        $params = array_merge(array('quota_path' => 'quota',
                                    'dev_inbx'  => null,
                                    'dev_fldrs'  => null),
                              $params);
        parent::IMP_Quota($params);
    }

    /**
     * Get the disk block size, if possible.
     *
     * We try to find out the disk block size from stat(). If not
     * available, stat() should return -1 for this value, in which
     * case we default to 1024 (for historical reasons). There are a
     * large number of reasons this may fail, such as OS support,
     * SELinux interference, the file being > 2 GB in size, the file
     * we're referring to not being readable, etc.
     */
    function blockSize()
    {
        $results = stat(__FILE__);
        if ($results['blksize'] > 1) {
            $blocksize = $results['blksize'];
        } else {
            $blocksize = 1024;
        }
        $blocksize = 1024;
        return $blocksize;
    }

    /**
     * Get quota information (used/allocated), in bytes.
     *
     * @return mixed  An associative array.
     *                'soflimithome' = Maximum quota allowed in dev_fldrs
     *                'usagehome' = Currently used portion of quota in dev_fldrs
     *                'soflimitvar' = Maximum quota allowed in dev_inbx
     *                'usagevar' = Currently used portion of quota in dev_inbx
     *                Returns PEAR_Error on failure.
     */
    function getQuota()
    {
        $imap_user = $_SESSION['imp']['user'];

        $cmdline = $this->_params['quota_path'] . ' -wu ' . $imap_user;
        unset($quota_data);
        $junk = exec($cmdline, $quota_data, $return_code);
        $junk = count( $quota_data);

        $blocksize = $this->blockSize();

        /* 
        * Is quota exceeded? 
        */

        if ($return_code == 0) {
            /* 
            * Quota not exceeded 
            * Is quota defined? 
            */
            if (ereg("none$", $quota_data[0])) {
                /*
                * Quota not defined or user does not own any files.
                */
                if (empty($this->_params['dev_fldrs'])) {
                    return array('usagehome' => -1, 'soflimithome' => -1, 'usagevar' => 0, 'soflimitvar' => 0);
                } else {
                    return array('usagehome' => 0, 'soflimithome' => 0, 'usagevar' => 0, 'soflimitvar' => 0);
                }
            } else {
                /*
                * Quota defined
                */
                if ( $junk == 4 ) {
                    /*
                    * Quotas defined for dev_fldrs and dev_inbx
                    */
                    if (ereg($this->_params['dev_fldrs'], $quota_data[2])) {
                        $quotahome = split("[[:blank:]]+", trim($quota_data[2]));
                        $quotavar = split("[[:blank:]]+", trim($quota_data[3]));
                        return array('usagehome' => $quotahome[1] * $blocksize, 'soflimithome' => $quotahome[2] * $blocksize, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize);
                    } elseif (ereg($this->_params['dev_inbx'], $quota_data[2])) {
                        $quotahome = split("[[:blank:]]+", trim($quota_data[3]));
                        $quotavar = split("[[:blank:]]+", trim($quota_data[2]));
                        return array('usagehome' => $quotahome[1] * $blocksize, 'soflimithome' => $quotahome[2] * $blocksize, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize);
                    } 
                } else {
                    /*
                    * Either quota is defined only for dev_fldrs or dev_inbx
                    * or user owns file in only one file system.
                    */
                    if (ereg($this->_params['dev_inbx'], $quota_data[2])) {
                        $quotavar = split("[[:blank:]]+", trim($quota_data[2]));
                        if (!empty($this->_params['dev_fldrs'])) {
                            return array('usagehome' => 0, 'soflimithome' => 0, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize);
                        } else {
                            return array('usagehome' => -1, 'soflimithome' => -1, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize);
                        }
                    } elseif (!empty($this->_params['dev_fldrs'])) {
                        if (ereg($this->_params['dev_fldrs'], $quota_data[2])) {
                            $quotahome = split("[[:blank:]]+", trim($quota_data[2]));
                            return array('usagehome' => $quotahome[1] * $blocksize, 'soflimithome' => $quotahome[2] * $blocksize, 'usagevar' => 0, 'soflimitvar' => 0);
                        }    
                    }
                }
            }
        } else {
            /*
            * Some quota exceeded
            */
            if ( $junk == 4 ) {
                /*
                * Quotas defined for dev_fldrs and dev_inbx
                */
                if (ereg($this->_params['dev_fldrs'], $quota_data[2])) {
                    $quotahome = split("[[:blank:]]+", trim($quota_data[2]));
                    $quotavar = split("[[:blank:]]+", trim($quota_data[3]));
                } elseif (ereg($this->_params['dev_inbx'], $quota_data[2])) {
                    $quotahome = split("[[:blank:]]+", trim($quota_data[3]));
                    $quotavar = split("[[:blank:]]+", trim($quota_data[2]));
                }
                /*
                * 
                * Quota exceeded in dev_fldrs?
                */
                if (ereg("\*$", $quotahome[1])) {
                    $quotahome[1] = ereg_replace ("\*", "", $quotahome[1]);
                    $quotahome[4] = ereg_replace ("days", "", $quotahome[4]);
                } else {
                    $quotahome[4] == "";
                }
                /* 
                * Quota exceeded in dev_inbx?
                */
                if (ereg("\*$", $quotavar[1])) {
                    $quotavar[1] = ereg_replace ("\*", "", $quotavar[1]);
                    $quotavar[4] = ereg_replace ("days", "", $quotavar[4]);
                } else {
                    $quotavar[4] == "";
                }
                return array('usagehome' => $quotahome[1] * $blocksize, 'soflimithome' => $quotahome[2] * $blocksize, 'gracehome' => $quotahome[4], 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize, 'gracevar' => $quotavar[4]);
            } else {
                /*
                * Either quota is defined only for dev_fldrs or dev_inbx
                * or user owns file in only one file system.
                */
                if (ereg($this->_params[dev_inbx], $quota_data[2])) {
                    /** 
                    * Quota exceeded in dev_inbx.
                    */
                    $quotavar = split("[[:blank:]]+", trim($quota_data[2]));
                    $quotavar[1] = ereg_replace ("\*", "", $quotavar[1]);
                    $quotavar[4] = ereg_replace ("days", "", $quotavar[4]);
                    if (!empty($this->_params['dev_fldrs'])) {
                        return array('usagehome' => 0, 'soflimithome' => 0, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize, 'gracevar' => $quotavar[4]);
                    } else {
                        return array('usagehome' => -1, 'soflimithome' => -1, 'usagevar' => $quotavar[1] * $blocksize, 'soflimitvar' => $quotavar[2] * $blocksize, 'gracevar' => $quotavar[4]);
                    }
                } else {
                    /* 
                    * Quota exceeded in dev_fldrs
                    */
                    $quotahome = split("[[:blank:]]+", trim($quota_data[2]));
                    $quotahome[1] = ereg_replace ("\*", "", $quotahome[1]);
                    $quotahome[4] = ereg_replace ("days", "", $quotahome[4]);
                    return array('usagehome' => $quotahome[1] * $blocksize, 'soflimithome' => $quotahome[2] * $blocksize, 'gracehome' => $quotahome[4], 'usagevar' => 0, 'soflimitvar' => 0);
                }
            }
        }
        return PEAR::raiseError(_("Unable to retrieve quota"), 'horde.error');
    }

}

Configuration examples

(imp/config/servers.php)

  • One device:

$servers['imap'] = array(
    ...

    'quota' => array(
      'driver' => 'command',
      'params' => array(
        'quota_path' => '/usr/bin/quota',
        'dev_inbx' => '/dev/hda6')
     )
);

  • Two devices:

$servers['imap'] = array(
    ...

    'quota' => array(
      'driver' => 'command',
      'params' => array(
        'quota_path' => '/usr/bin/quota',
        'dev_fldrs' => '/dev/hda7',
        'dev_inbx' => '/dev/hda6')
     )
);


Quota.php

  • New messages:
Alerts quota exceeded, grace time or expired;
Alerts almost full;
Normal quota information.

Backup your original imp/lib/Quota.php. Edit Quota.php and replace functions "getQuota" and "getMessages" with the following code:
    /**
     * Get quota information (used/allocated), in bytes.
     *
     * @return mixed  An associative array.
     *                'limit...' = Maximum quota allowed
     *                'usage...' = Currently used portion of quota (in bytes)
     *                'limithome' and 'usagehome' for dev_fldrs (/home) (mail folders)
     *                'limitvar' and 'usagevar' for dev_inbx (/var/mail) (INBOX)
     *                Returns PEAR_Error on failure.
     */
    function getQuota()
    {
        return array('usagehome' => 0, 'limithome' => 0, 'usagevar' => 0, 'limitvar' => 0);
    }

    /**
     * Returns the quota messages variants, including sprintf placeholders.
     *
     * @return array  A hash with quota message templates.
     */
    function getMessages()
    {
        return array(
            'longh' => (isset($this->_params['format']['longh']))
                ? $this->_params['format']['longh']
                : _("Folders: %.2fMB / %.2fMB  (%.2f%%)"),
            'longhaf' => (isset($this->_params['format']['longhaf']))
                ? $this->_params['format']['longhaf']
                : _("ATTENTION! Folders area almost full: %.2fMB / %.2fMB  (%.2f%%)"),
            'longhle' => (isset($this->_params['format']['longhle']))
                ? $this->_params['format']['longhle']
                : _("ATTENTION! Folders: Limit exceeded: %.2fMB / %.2fMB  (%.2f%%). Please, solve before %s day(s)."),
            'longhlee' => (isset($this->_params['format']['longhlee']))
                ? $this->_params['format']['longhlee']
                : _("ATTENTION! Folders: Limit exceeded: %.2fMB / %.2fMB  (%.2f%%). Expired."),
            'shorth' => isset($this->_params['format']['shorth'])
                ? $this->_params['format']['shorth']
                : _("Folders: %.0f%% of %.0fMB"),
            'shorthaf' => isset($this->_params['format']['shorthaf'])
                ? $this->_params['format']['shorthaf']
                : _("ATTENTION! Folders area almost full: %.0f%% of %.0fMB"),
            'shorthle' => isset($this->_params['format']['shorthle'])
                ? $this->_params['format']['shorthle']
                : _("ATTENTION! Folders: Limit exceeded: %.0f%% of %.0fMB. Please, solve before %s day(s)."),
            'shorthlee' => isset($this->_params['format']['shorthlee'])
                ? $this->_params['format']['shorthlee']
                : _("ATTENTION! Folders: Limit exceeded: %.0f%% of %.0fMB. Expired."),
            'nolimit_longh' => isset($this->_params['format']['nolimit_longh'])
                ? $this->_params['format']['nolimit_longh']
                : _("Folders: %.2fMB / NO limit."),
            'nolimit_shorth' => isset($this->_params['format']['nolimit_shorth'])
                ? $this->_params['format']['nolimit_shorth']
                : _("Folders: %.0f MB"),
            'longi' => (isset($this->_params['format']['longi']))
                ? $this->_params['format']['longi']
                : _("Inbox: %.2fMB / %.2fMB  (%.2f%%)"),
            'longiaf' => (isset($this->_params['format']['longiaf']))
                ? $this->_params['format']['longiaf']
                : _("ATTENTION! Inbox almost full: %.2fMB / %.2fMB  (%.2f%%)"),
            'longile' => (isset($this->_params['format']['longile']))
                ? $this->_params['format']['longile']
                : _("ATTENTION! Inbox: limit exceeded: %.2fMB / %.2fMB  (%.2f%%). Please, solve in %s day(s)."),
            'longilee' => (isset($this->_params['format']['longilee']))
                ? $this->_params['format']['longilee']
                : _("ATTENTION! Inbox: limit exceeded: %.2fMB / %.2fMB  (%.2f%%). Date expired."),
            'shorti' => isset($this->_params['format']['shorti'])
                ? $this->_params['format']['shorti']
                : _("Inbox: %.0f%% of %.0fMB"),
            'shortiaf' => isset($this->_params['format']['shortiaf'])
                ? $this->_params['format']['shortiaf']
                : _("ATTENTION! Inbox almost full: %.0f%% of %.0fMB"),
            'shortile' => isset($this->_params['format']['shortile'])
                ? $this->_params['format']['shortile']
                : _("ATTENTION! Inbox: Limit exceeded: %.0f%% of %.0fMB. Please, solve before %s day(s)."),
            'shortilee' => isset($this->_params['format']['shortilee'])
                ? $this->_params['format']['shortilee']
                : _("ATTENTION! Inbox: Limit exceeded: %.0f%% of %.0fMB. Expired."),
            'nolimit_longi' => isset($this->_params['format']['nolimit_longi'])
                ? $this->_params['format']['nolimit_longi']
                : _("Inbox: %.2f MB / NO LIMIT"),
            'nolimit_shorti' => isset($this->_params['format']['nolimit_shorti'])
                ? $this->_params['format']['nolimit_shorti']
                : _("Inbox: %.0f MB"));
    }

IMP.php

  • Function quotaData takes care of using one or two devices (dev_inbx, dev_fldrs). New information scale:
quota >= 100%, quotaalert. Alerts quota exceeded, grace time or expired;
90% <= quota < 100%, quotaalert. Alerts almost full;
75% <= quota < 90%, quotawarn;
quota < 75%, control.
To change the control and warn percentages just edit quotaData function to the desired values.

Backup your original imp/lib/IMP.php. Edit IMP.php and replace functions "quota" and "quotaData" with the following code:
    /**
     * Outputs IMP's quota information.
     * Modified by Mauricio Jose T. Tecles <mtecles@biof.ufrj.br>
     * Updated 2010 February 28
     */
    function quota()
    {
        $quotadata = IMP::quotaData(true);
        if (!empty($quotadata)) {
            require_once IMP_BASE . '/lib/Template.php';
            if (!empty($quotadata['messagehome'])) {
                $t = new IMP_Template();
                $t->set('class', $quotadata['classhome']);
                $t->set('message', $quotadata['messagehome']);
                echo $t->fetch(IMP_TEMPLATES . '/quota/quota.html');
            }
            $t = new IMP_Template();
            $t->set('class', $quotadata['classvar']);
            $t->set('message', $quotadata['messagevar']);
            echo $t->fetch(IMP_TEMPLATES . '/quota/quota.html');
        }
    }

    /**
     * Returns data needed to output quota.
     *
     * @since IMP 4.2
     *
     * @param boolean $long  Output long messages?
     *
     * @return array  Array with these keys: class, message, percent.
     * 
     * Modified by Mauricio Jose T. Tecles <mtecles@biof.ufrj.br>
     * Updated 2010 February 28
     */
    function quotaData($long = true)
    {
        if (!isset($_SESSION['imp']['quota']) ||
            !is_array($_SESSION['imp']['quota'])) {
            return false;
        }

        require_once IMP_BASE . '/lib/Quota.php';
        $quotaDriver = &IMP_Quota::singleton($_SESSION['imp']['quota']['driver'], $_SESSION['imp']['quota']['params']);
        if ($quotaDriver === false) {
            return false;
        }

        $quota = $quotaDriver->getQuota();
        if (is_a($quota, 'PEAR_Error')) {
            Horde::logMessage($quota, __FILE__, __LINE__, PEAR_LOG_ERR);
            return false;
        }

        $strings = $quotaDriver->getMessages();
        $ret = array('percent' => 0);

        /* Quota for dev_fldrs */

        unset($ret['messagehome']);
        if ($quota['soflimithome'] > 0) {
            $quota['usagehome'] = $quota['usagehome'] / (1024 * 1024.0);
            $quota['soflimithome'] = $quota['soflimithome'] / (1024 * 1024.0);
            $ret['percent'] = ($quota['usagehome'] * 100) / $quota['soflimithome'];

            if ($ret['percent'] >= 100) {
                $ret['classhome'] = 'quotaalert';
                if (ereg("none", $quota['gracehome'])) {
                    if ($long) {
                        $ret['messagehome'] = sprintf($strings['longhlee'], $quota['usagehome'], $quota['soflimithome'], $ret['percent']);
                    } else {
                        $ret['messagehome'] = sprintf($strings['shorthlee'], $ret['percent'], $quota['soflimithome']);
                    }
                } else {
                    if ($long) {
                        $ret['messagehome'] = sprintf($strings['longhle'], $quota['usagehome'], $quota['soflimithome'], $ret['percent'], $quota['gracehome']);
                    } else {
                        $ret['messagehome'] = sprintf($strings['shorthle'], $ret['percent'], $quota['soflimithome'], $quota['gracehome']);
                    }
                }
            } elseif ($ret['percent'] >= 90) {
                $ret['classhome'] = 'quotaalert';
                if ($long) {
                    $ret['messagehome'] = sprintf($strings['longhaf'], $quota['usagehome'], $quota['soflimithome'], $ret['percent']);
                } else {
                    $ret['messagehome'] = sprintf($strings['shorthaf'], $ret['percent'], $quota['soflimithome']);
                }
            } elseif ($ret['percent'] >= 75) {
                $ret['classhome'] = 'quotawarn';
                if ($long) {
                    $ret['messagehome'] = sprintf($strings['longh'], $quota['usagehome'], $quota['soflimithome'], $ret['percent']);
                } else {
                    $ret['messagehome'] = sprintf($strings['shorth'], $ret['percent'], $quota['soflimithome']);
                }
            } else {
                $ret['classhome'] = 'control';
                if ($long) {
                    $ret['messagehome'] = sprintf($strings['longh'], $quota['usagehome'], $quota['soflimithome'], $ret['percent']);
                } else {
                    $ret['messagehome'] = sprintf($strings['shorth'], $ret['percent'], $quota['soflimithome']);
                }
            }
        } else {
            // Hide unlimited quota message?
            if (!empty($_SESSION['imp']['quota']['params']['hide_quota_when_unlimited'])) {
                return false;
            }

            $ret['classhome'] = 'control';
            if ($quota['usagehome'] > 0) {
                $quota['usagehome'] = $quota['usagehome'] / (1024 * 1024.0);
                if ($long) {
                    $ret['messagehome'] = sprintf($strings['nolimit_longh'], $quota['usagehome']);
                } else {
                    $ret['messagehome'] = sprintf($strings['nolimit_shorth'], $quota['usagehome']);
                }
            } elseif ($quota['usagehome'] == 0) {
                $ret['messagehome'] = sprintf(_("Folders: NO LIMIT"));
            }
        }

        /* Quota for dev_inbx */

        if ($quota['soflimitvar'] != 0) {
            $quota['usagevar'] = $quota['usagevar'] / (1024 * 1024.0);
            $quota['soflimitvar'] = $quota['soflimitvar'] / (1024 * 1024.0);
            $ret['percent'] = ($quota['usagevar'] * 100) / $quota['soflimitvar'];

            if ($ret['percent'] >= 100) {
                $ret['classvar'] = 'quotaalert';
                if (ereg("none", $quota['gracevar'])) {
                    if ($long) {
                        $ret['messagevar'] = sprintf($strings['longilee'], $quota['usagevar'], $quota['soflimitvar'], $ret['percent']);
                    } else {
                        $ret['messagevar'] = sprintf($strings['shortilee'], $ret['percent'], $quota['soflimitvar']);
                    }
                } else {
                    if ($long) {
                        $ret['messagevar'] = sprintf($strings['longile'], $quota['usagevar'], $quota['soflimitvar'], $ret['percent'], $quota['gracevar']);
                    } else {
                        $ret['messagevar'] = sprintf($strings['shortile'], $ret['percent'], $quota['soflimitvar'], $quota['gracevar']);
                    }
                }
            } elseif ($ret['percent'] >= 90) {
                $ret['classvar'] = 'quotaalert';
                if ($long) {
                    $ret['messagevar'] = sprintf($strings['longiaf'], $quota['usagevar'], $quota['soflimitvar'], $ret['percent']);
                } else {
                $ret['messagevar'] = sprintf($strings['shortiaf'], $ret['percent'], $quota['soflimitvar']);
                }
            } elseif ($ret['percent'] >= 75) {
                $ret['classvar'] = 'quotawarn';
                if ($long) {
                    $ret['messagevar'] = sprintf($strings['longi'], $quota['usagevar'], $quota['soflimitvar'], $ret['percent']);
                } else {
                    $ret['messagevar'] = sprintf($strings['shorti'], $ret['percent'], $quota['soflimitvar']);
                }
            } else {
                $ret['classvar'] = 'control';
                if ($long) {
                    $ret['messagevar'] = sprintf($strings['longi'], $quota['usagevar'], $quota['soflimitvar'], $ret['percent']);
                } else {
                    $ret['messagevar'] = sprintf($strings['shorti'], $ret['percent'], $quota['soflimitvar']);
                }
            }
        } else {
            // Hide unlimited quota message?
            if (!empty($_SESSION['imp']['quota']['params']['hide_quota_when_unlimited'])) {
                return false;
            }

            $ret['classvar'] = 'control';
            if ($quota['usagevar'] != 0) {
                $quota['usagevar'] = $quota['usagevar'] / (1024 * 1024.0);
                if ($long) {
                    $ret['messagevar'] = sprintf($strings['nolimit_longi'],
                                              $quota['usagevar']);
                } else {
                    $ret['messagevar'] = sprintf($strings['nolimit_shorti'],
                                              $quota['usagevar']);
                }
            } else {
                    $ret['messagevar'] = sprintf(_("Inbox: NO LIMIT"));
            }
        }

        return $ret;
    }