root/admin/admin_mass_email.php

<?php
/***************************************************************************</span>
<span class="code-comment">*                             admin_mass_email.php
*                              -------------------
*     begin                : Thu May 31, 2001
*     copyright            : (C) 2001 The phpBB Group
*     email                : support@phpbb.com
*
*     $Id: admin_mass_email.php,v 1.15.2.7 2003/05/03 23:24:01 acydburn Exp $
*
****************************************************************************/

/***************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 ***************************************************************************/

if( !empty($setmodules) )</span>
<span class="code-keyword">{
    $filename = basename(__FILE__);
    $module['general']['mass_email'] = $filename;

    return;
}

define('IN_PHPBB', 1);

//</span>
<span class="code-comment">// Load default header
//
$no_page_header = TRUE;
$root_path = './../';</span>
<span class="code-lang">require_once($root_path . 'extension.inc');
require_once('./pagestart.' . $phpEx);

//</span>
<span class="code-comment">// Increase maximum execution time in case of a lot of users, but don't complain about it if it isn't
// allowed.
//
@set_time_limit(0);</span>
<span class="code-keyword">@ignore_user_abort(true);
@ini_set('memory_limit', -1);

$message = '';
$subject = '';
$error = FALSE;

//</span>
<span class="code-comment">// Do the job ...
//
if ( isset($_POST['submit']) ) {</span>
<span class="code-keyword">    $subject = ( STRIP ? stripslashes(trim($_POST['subject'])) : trim($_POST['subject']) );
    $message = ( STRIP ? stripslashes(trim($_POST['message'])) : trim($_POST['message']) );

    $use_queue = ( isset($_POST['imediatly_send']) ? false : true );
    $priority = ( isset($_POST['priority']) ? intval($_POST['priority']) : MAIL_NORMAL_PRIORITY );

    $error = FALSE;
    $error_msg = '';

    if ( empty($subject) ) {
        $error = true;
        $error_msg .= ( !empty($error_msg) ) ? '<br />' . $lang['empty_subject'] : $lang['empty_subject'];
    }

    if ( empty($message) ) {
        $error = true;
        $error_msg .= ( !empty($error_msg) ) ? '<br />' . $lang['empty_message'] : $lang['empty_message'];
    }

    $group_id = ( isset($_POST[POST_GROUPS_URL]) ? intval($_POST[POST_GROUPS_URL]) : 0 );

    $sql = ( $group_id != -1 ) ? "SELECT u.email FROM " . USERS_TABLE . " u, " . USER_GROUP_TABLE . " ug WHERE ug.group_id = $group_id AND u.uid = ug.user_id" : "SELECT email FROM " . USERS_TABLE;
    $result = $db->sql_query($sql);

    if ( ( $row = $db->sql_fetchrow($result) ) && !$error ) {

        $i = $j = 0;

        // Send with BCC, no more than 50 recipients for one mail (to not exceed the limit)
        $max_chunk_size = 150;
        $email_list = array();

        do
        {
            if ( $i == $max_chunk_size )
            {
                $i = 0;

                if (sizeof($email_list))
                {
                    $j++;
                }
            }

            $email_list[$j][$i]['email']    = $row['email'];
            $i++;
        }
        while ($row = $db->sql_fetchrow($result));
        $db->sql_freeresult($result);

        // Send the messages
        include_once($root_path . 'include/functions_messenger.' . $phpEx);
        $messenger = new messenger($use_queue);

        $errored = false;

        for ($i = 0, $size = sizeof($email_list); $i < $size; $i++)
        {
            $send_to = false;
            for ($j = 0, $list_size = sizeof($email_list[$i]); $j < $list_size; $j++)
            {
                $email_row = $email_list[$i][$j];

                if ( sizeof($email_list[$i]) == 1 ) {
                    $messenger->to($email_row['email']);
                }
                else {
                    $messenger->bcc($email_row['email']);
                    $send_to = true;
                }
            }
            if ( $send_to ) {
                $messenger->to($config['sitemail']);
            }
            $messenger->template('admin_send_email');
            $messenger->subject($subject);
            $messenger->set_mail_priority($priority);

             $messenger->assign_vars(array(
                'BOARD_EMAIL' => $config['sitemail'],
                'MESSAGE' => $message
            ));
            unset($email_list[$i]);

            $messenger->send(NOTIFY_EMAIL);

        }

        $messenger->save_queue();


        trigger_error($lang['email_sent'] . '<br /><br />' . sprintf($lang['click_return_admin_index'],  '<a href="' . append_sid("index.$phpEx?pane=right") . '">', '</a>'));
        return;
     }
     else {
        $message = ( $group_id != -1 ) ? $lang['group_not_exist'] : $lang['no_such_user'];

        $error = true;
        $error_msg .= ( !empty($error_msg) ) ? '<br />' . $message : $message;
     }
}

if ( $error )
{
    $template->set_filenames(array(
        'reg_header' => '../admin/error_body.tpl'
    ));

    $template->assign_vars(array(
        'ERROR_MESSAGE' => $error_msg)
    );
    $tpl = $template->assign_display('reg_header');

    $template->assign_vars(array(
        'ERROR_BOX' => $tpl
    ));
}

//</span>
<span class="code-comment">// Initial selection
//

$sql = "SELECT group_id, group_name</span>
<span class="code-lang">    FROM ".GROUPS_TABLE . "
    WHERE group_single_user <> 1";
$result = $db->sql_query($sql);

$select_list = '<select name = "' . POST_GROUPS_URL . '"><option value = "-1">' . $lang['all_users'] . '</option>';</span>
<span class="code-lang">if ( $row = $db->sql_fetchrow($result) )
{
    do
    {
        $select_list .= '<option value = "' . $row['group_id'] . '">' . $row['group_name'] . '</option>';
    }
    while ( $row = $db->sql_fetchrow($result) );
}
$select_list .= '</select>';

$priority_options = '';</span>
<span class="code-lang">foreach ( array( $lang['normal'] => MAIL_NORMAL_PRIORITY, $lang['low'] => MAIL_LOW_PRIORITY, $lang['high'] => MAIL_HIGH_PRIORITY) AS $name => $value ) {
    $priority_options .= '<option value="' . $value . '">' . $name . '</option>';
}

//</span>
<span class="code-comment">// Generate page
//
include('./page_header_admin.'.$phpEx);

$template->set_filenames(array(</span>
<span class="code-lang">    'body' => '../admin/user_email_body.tpl')
);

$template->assign_vars(array(</span>
<span class="code-lang">    'MESSAGE' => $message,
    'SUBJECT' => $subject,

    'L_EMAIL_TITLE' => $lang['email'],
    'L_EMAIL_EXPLAIN' => $lang['mass_email_explain'],
    'L_EMAIL_SUBJECT' => $lang['subject'],
    'L_EMAIL_MSG' => $lang['message'],

    'S_USER_ACTION' => append_sid('admin_mass_email.'.$phpEx),
    'S_GROUP_SELECT' => $select_list,
    'S_PRIORITY_OPTIONS' => $priority_options )
);

$template->display('body');</span>
<span class="code-lang">
include('./page_footer_admin.'.$phpEx);

?>