class.ilDiskQuotaSummaryNotification.php

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<?php
/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once 'Services/Mail/classes/class.ilMailNotification.php';
include_once 'Services/WebDAV/classes/class.ilDiskQuotaChecker.php';

class ilDiskQuotaSummaryNotification extends ilMailNotification
{
        public function __construct($a_is_personal_workspace = false)
        {               
                $dqs = new ilSetting('disk_quota');
                $rcpt = $dqs->get('summary_rcpt');              
                $rcpt = explode(',', $rcpt);
                $loginnames = array();
                foreach($rcpt as $loginname)
                {
                        $loginname = trim($loginname);
                        if(ilObjUser::_lookupId($loginname))
                        {
                                $loginnames[] = $loginname;
                        }
                }               
                $this->setRecipients($loginnames);
                
                parent::__construct($a_is_personal_workspace);
        }
        
        public function send()
        {
                global $ilDB;
                
                // parent::send();
                
                if( count($this->getRecipients()) )
                {
                        $res = $ilDB->queryf(
                                "SELECT u.usr_id,u.gender,u.firstname,u.lastname,u.login,u.email,u.last_login,u.active,".
                                        "u.time_limit_unlimited, ".$ilDB->fromUnixtime("u.time_limit_from").", ".$ilDB->fromUnixtime("u.time_limit_until").",".
        
                                        // Inactive users get the date 0001-01-01 so that they appear
                                        // first when the list is sorted by this field. Users with
                                        // unlimited access get the date 9999-12-31 so that they appear
                                        // last.
                                        "CASE WHEN u.active = 0 THEN '0001-01-01' ELSE CASE WHEN u.time_limit_unlimited=1 THEN '9999-12-31' ELSE ".$ilDB->fromUnixtime("u.time_limit_until")." END END access_until,".
        
                                        " CASE WHEN ".$ilDB->unixTimestamp()." BETWEEN u.time_limit_from AND u.time_limit_until THEN 0 ELSE 1 END expired,".
                                        "rq.role_disk_quota, system_role.rol_id role_id, ".
                                        "p1.value+0 user_disk_quota,".
                                        "p2.value+0 disk_usage, ".
                                        "p3.value last_update, ".
                                        "p5.value language, ".
        
                                        // We add 0 to some of the values to convert them into a number.
                                        // This is needed for correct sorting.
                                        "CASE WHEN rq.role_disk_quota>p1.value+0 OR p1.value IS NULL THEN rq.role_disk_quota ELSE p1.value+0 END disk_quota     ".
                                "FROM usr_data u  ".
        
                                // Fetch the role with the highest disk quota value.
                                "JOIN (SELECT u.usr_id usr_id,MAX(rd.disk_quota) role_disk_quota ".
                                        "FROM usr_data u ".
                                        "JOIN rbac_ua ua ON ua.usr_id=u.usr_id ".
                                        "JOIN rbac_fa fa ON fa.rol_id=ua.rol_id AND fa.parent=%s  ".
                                        "JOIN role_data rd ON rd.role_id=ua.rol_id WHERE u.usr_id=ua.usr_id GROUP BY u.usr_id) rq ON rq.usr_id=u.usr_id ".
        
                                // Fetch the system role in order to determine whether the user has unlimited disk quota
                                "LEFT JOIN rbac_ua system_role ON system_role.usr_id=u.usr_id AND system_role.rol_id = %s ".
        
                                // Fetch the user disk quota from table usr_pref
                                "LEFT JOIN usr_pref p1 ON p1.usr_id=u.usr_id AND p1.keyword = 'disk_quota'  ".
        
                                // Fetch the disk usage from table usr_pref
                                "LEFT JOIN usr_pref p2 ON p2.usr_id=u.usr_id AND p2.keyword = 'disk_usage'  ".
        
                                // Fetch the last update from table usr_pref
                                "LEFT JOIN usr_pref p3 ON p3.usr_id=u.usr_id AND p3.keyword = 'disk_usage.last_update'  ".
        
                                // Fetch the language of the user
                                "LEFT JOIN usr_pref p5 ON p5.usr_id=u.usr_id AND p5.keyword = 'language'  ".
        
                                // Fetch only users who have exceeded their quota, and who have
                                // access, and who have not received a reminder in the past seven days
                                // #8554 / #10301
                                'WHERE (((p1.value+0 > rq.role_disk_quota OR rq.role_disk_quota IS NULL) AND p2.value+0 > p1.value+0) OR 
                                        ((rq.role_disk_quota > p1.value+0 OR p1.value IS NULL) AND p2.value+0 > rq.role_disk_quota)) '.
                                'AND (u.active=1 AND (u.time_limit_unlimited = 1 OR '.$ilDB->unixTimestamp().' BETWEEN u.time_limit_from AND u.time_limit_until)) '
                                ,
                        array('integer','integer'),
                        array(ROLE_FOLDER_ID, SYSTEM_ROLE_ID)
                        );
                        
                        $users = array();
                        
                        $counter = 0;
                        while( $row = $ilDB->fetchAssoc($res) )
                        {
                                $details = ilDiskQuotaChecker::_lookupDiskUsage($row['usr_id']);
                                
                                $users[$counter]['disk_quota'] = $row['disk_quota'];
                                $users[$counter]['disk_usage'] = $details['disk_usage'];
                                $users[$counter]['email'] = $row['email'];
                                $users[$counter]['firstname'] = $row['firstname'];
                                $users[$counter]['lastname'] = $row['lastname'];
                                
                                ++$counter;
                        }

                        if( count($users) ) foreach($this->getRecipients() as $rcp)
                        {
                                $usrId = ilObjUser::_lookupId($rcp);
                                
                                $this->initLanguage($usrId);
                                $this->initMail();
                                
                                $this->setSubject($this->getLanguage()->txt('disk_quota_summary_subject'));
                                
                                $this->setBody(ilMail::getSalutation($usrId, $this->getLanguage()));    
                                
                                $this->appendBody("\n\n");
                                $this->appendBody($this->getLanguage()->txt('disk_quota_exceeded_headline'));
                                $this->appendBody("\n\n");
                                
                                $first = true;
                                $counter = 0;
                                $numUsers = count($users);
                                foreach($users as $user)
                                {
                                        if(!$first)
                                        {
                                                $this->appendBody("\n---------------------------------------------------\n\n");                                         
                                        }
                                        
                                        $this->appendBody(
                                                $this->getLanguage()->txt('fullname').': '.
                                                $user['lastname'].', '.$user['firstname']
                                        ."\n");
                                        $this->appendBody(
                                                $this->getLanguage()->txt('email').': '.
                                                $user['email']
                                        ."\n");
                                        $this->appendBody(
                                                $this->getLanguage()->txt('disk_quota').': '.
                                                ilUtil::formatSize($user['disk_quota'],'short', $this->getLanguage())
                                        ."\n");
                                        $this->appendBody(
                                                $this->getLanguage()->txt('currently_used_disk_space').': '.
                                                ilUtil::formatSize($user['disk_usage'],'short', $this->getLanguage())
                                        ."\n");
                                        
                                        $this->appendBody(
                                                $this->getLanguage()->txt('usrf_profile_link').': '.
                                                ilUtil::_getHttpPath().'/goto.php?target=usrf&client_id='.CLIENT_ID
                                        );
                                        
                                        if($counter < $numUsers - 1)
                                        {
                                                $this->appendBody("\n");
                                        }
                                        
                                        ++$counter;                                     
                                        $first = false;
                                }
                                                                
                                $this->getMail()->appendInstallationSignature(true);

                                $this->sendMail(array($rcp), array('system'), false);
                        }
                }               
        }
}