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functions_messenger.php
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<?php
/**
*
* @package phpBB3
* @version $Id$
* @copyright (c) 2005 phpBB Group
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
exit;
}
/**
* Messenger
* @package phpBB3
*/
class messenger
{
var $vars, $msg, $extra_headers, $replyto, $from, $subject;
var $addresses = array();
var $mail_priority = MAIL_NORMAL_PRIORITY;
var $use_queue = true;
var $tpl_obj = NULL;
var $tpl_msg = array();
var $eol = "\n";
/**
* Constructor
*/
function messenger($use_queue = true)
{
global $config;
$this->use_queue = (!$config['email_package_size']) ? false : $use_queue;
$this->subject = '';
// Determine EOL character (\n for UNIX, \r\n for Windows and \r for Mac)
$this->eol = (!defined('PHP_EOL')) ? (($eol = strtolower(substr(PHP_OS, 0, 3))) == 'win') ? "\r\n" : (($eol == 'mac') ? "\r" : "\n") : PHP_EOL;
$this->eol = (!$this->eol) ? "\n" : $this->eol;
}
/**
* Resets all the data (address, template file, etc etc) to default
*/
function reset()
{
$this->addresses = $this->extra_headers = array();
$this->vars = $this->msg = $this->replyto = $this->from = '';
$this->mail_priority = MAIL_NORMAL_PRIORITY;
}
/**
* Sets an email address to send to
*/
function to($address, $realname = '')
{
global $config;
if (!trim($address))
{
return;
}
$pos = isset($this->addresses['to']) ? sizeof($this->addresses['to']) : 0;
$this->addresses['to'][$pos]['email'] = trim($address);
// If empty sendmail_path on windows, PHP changes the to line
if (!$config['smtp_delivery'] && DIRECTORY_SEPARATOR == '\\')
{
$this->addresses['to'][$pos]['name'] = '';
}
else
{
$this->addresses['to'][$pos]['name'] = trim($realname);
}
}
/**
* Sets an cc address to send to
*/
function cc($address, $realname = '')
{
if (!trim($address))
{
return;
}
$pos = isset($this->addresses['cc']) ? sizeof($this->addresses['cc']) : 0;
$this->addresses['cc'][$pos]['email'] = trim($address);
$this->addresses['cc'][$pos]['name'] = trim($realname);
}
/**
* Sets an bcc address to send to
*/
function bcc($address, $realname = '')
{
if (!trim($address))
{
return;
}
$pos = isset($this->addresses['bcc']) ? sizeof($this->addresses['bcc']) : 0;
$this->addresses['bcc'][$pos]['email'] = trim($address);
$this->addresses['bcc'][$pos]['name'] = trim($realname);
}
/**
* Sets a im contact to send to
*/
function im($address, $realname = '')
{
// IM-Addresses could be empty
if (!trim($address))
{
return;
}
$pos = isset($this->addresses['im']) ? sizeof($this->addresses['im']) : 0;
$this->addresses['im'][$pos]['uid'] = trim($address);
$this->addresses['im'][$pos]['name'] = trim($realname);
}
/**
* Set the reply to address
*/
function replyto($address)
{
$this->replyto = trim($address);
}
/**
* Set the from address
*/
function from($address)
{
$this->from = trim($address);
}
/**
* set up subject for mail
*/
function subject($subject = '')
{
$this->subject = trim($subject);
}
/**
* set up extra mail headers
*/
function headers($headers)
{
$this->extra_headers[] = trim($headers);
}
/**
* Adds X-AntiAbuse headers
*
* @param array $config Configuration array
* @param user $user A user object
*
* @return null
*/
function anti_abuse_headers($config, $user)
{
$this->headers('X-AntiAbuse: Board servername - ' . mail_encode($config['server_name']));
$this->headers('X-AntiAbuse: User_id - ' . $user->data['user_id']);
$this->headers('X-AntiAbuse: Username - ' . mail_encode($user->data['username']));
$this->headers('X-AntiAbuse: User IP - ' . $user->ip);
}
/**
* Set the email priority
*/
function set_mail_priority($priority = MAIL_NORMAL_PRIORITY)
{
$this->mail_priority = $priority;
}
/**
* Set email template to use
*/
function template($template_file, $template_lang = '', $template_path = '')
{
global $config, $phpbb_root_path, $user;
if (!trim($template_file))
{
trigger_error('No template file for emailing set.', E_USER_ERROR);
}
if (!trim($template_lang))
{
// fall back to board default language if the user's language is
// missing $template_file. If this does not exist either,
// $tpl->set_custom_template will do a trigger_error
$template_lang = basename($config['default_lang']);
}
// tpl_msg now holds a template object we can use to parse the template file
if (!isset($this->tpl_msg[$template_lang . $template_file]))
{
$this->tpl_msg[$template_lang . $template_file] = new template();
$tpl = &$this->tpl_msg[$template_lang . $template_file];
$fallback_template_path = false;
if (!$template_path)
{
$template_path = (!empty($user->lang_path)) ? $user->lang_path : $phpbb_root_path . 'language/';
$template_path .= $template_lang . '/email';
// we can only specify default language fallback when the path is not a custom one for which we
// do not know the default language alternative
if ($template_lang !== basename($config['default_lang']))
{
$fallback_template_path = (!empty($user->lang_path)) ? $user->lang_path : $phpbb_root_path . 'language/';
$fallback_template_path .= basename($config['default_lang']) . '/email';
}
}
$tpl->set_custom_template($template_path, $template_lang . '_email', $fallback_template_path);
$tpl->set_filenames(array(
'body' => $template_file . '.txt',
));
}
$this->tpl_obj = &$this->tpl_msg[$template_lang . $template_file];
$this->vars = &$this->tpl_obj->_rootref;
$this->tpl_msg = '';
return true;
}
/**
* assign variables to email template
*/
function assign_vars($vars)
{
if (!is_object($this->tpl_obj))
{
return;
}
$this->tpl_obj->assign_vars($vars);
}
function assign_block_vars($blockname, $vars)
{
if (!is_object($this->tpl_obj))
{
return;
}
$this->tpl_obj->assign_block_vars($blockname, $vars);
}
/**
* Send the mail out to the recipients set previously in var $this->addresses
*/
function send($method = NOTIFY_EMAIL, $break = false)
{
global $config, $user;
// We add some standard variables we always use, no need to specify them always
if (!isset($this->vars['U_BOARD']))
{
$this->assign_vars(array(
'U_BOARD' => generate_board_url(),
));
}
if (!isset($this->vars['EMAIL_SIG']))
{
$this->assign_vars(array(
'EMAIL_SIG' => str_replace('<br />', "\n", "-- \n" . htmlspecialchars_decode($config['board_email_sig'])),
));
}
if (!isset($this->vars['SITENAME']))
{
$this->assign_vars(array(
'SITENAME' => htmlspecialchars_decode($config['sitename']),
));
}
// Parse message through template
$this->msg = trim($this->tpl_obj->assign_display('body'));
// Because we use \n for newlines in the body message we need to fix line encoding errors for those admins who uploaded email template files in the wrong encoding
$this->msg = str_replace("\r\n", "\n", $this->msg);
// We now try and pull a subject from the email body ... if it exists,
// do this here because the subject may contain a variable
$drop_header = '';
$match = array();
if (preg_match('#^(Subject:(.*?))$#m', $this->msg, $match))
{
$this->subject = (trim($match[2]) != '') ? trim($match[2]) : (($this->subject != '') ? $this->subject : $user->lang['NO_EMAIL_SUBJECT']);
$drop_header .= '[\r\n]*?' . preg_quote($match[1], '#');
}
else
{
$this->subject = (($this->subject != '') ? $this->subject : $user->lang['NO_EMAIL_SUBJECT']);
}
if ($drop_header)
{
$this->msg = trim(preg_replace('#' . $drop_header . '#s', '', $this->msg));
}
if ($break)
{
return true;
}
switch ($method)
{
case NOTIFY_EMAIL:
$result = $this->msg_email();
break;
case NOTIFY_IM:
$result = $this->msg_jabber();
break;
case NOTIFY_BOTH:
$result = $this->msg_email();
$this->msg_jabber();
break;
}
$this->reset();
return $result;
}
/**
* Add error message to log
*/
function error($type, $msg)
{
global $user, $phpEx, $phpbb_root_path, $config;
// Session doesn't exist, create it
if (!isset($user->session_id) || $user->session_id === '')
{
$user->session_begin();
}
$calling_page = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF'];
$message = '';
switch ($type)
{
case 'EMAIL':
$message = '<strong>EMAIL/' . (($config['smtp_delivery']) ? 'SMTP' : 'PHP/' . $config['email_function_name'] . '()') . '</strong>';
break;
default:
$message = "<strong>$type</strong>";
break;
}
$message .= '<br /><em>' . htmlspecialchars($calling_page) . '</em><br /><br />' . $msg . '<br />';
add_log('critical', 'LOG_ERROR_' . $type, $message);
}
/**
* Save to queue
*/
function save_queue()
{
global $config;
if ($config['email_package_size'] && $this->use_queue && !empty($this->queue))
{
$this->queue->save();
return;
}
}
/**
* Generates a valid message id to be used in emails
*
* @return string message id
*/
function generate_message_id()
{
global $config;
$domain = 'phpbb.generated';
if ($config['server_name'])
{
$domain = $config['server_name'];
}
else if (!empty($_SERVER['SERVER_NAME']))
{
$domain = $_SERVER['SERVER_NAME'];
}
return md5(unique_id(time())) . '@' . $domain;
}
/**
* Return email header
*/
function build_header($to, $cc, $bcc)
{
global $config;
// We could use keys here, but we won't do this for 3.0.x to retain backwards compatibility
$headers = array();
$headers[] = 'From: ' . $this->from;
if ($cc)
{
$headers[] = 'Cc: ' . $cc;
}
if ($bcc)
{
$headers[] = 'Bcc: ' . $bcc;
}
$headers[] = 'Reply-To: ' . $this->replyto;
$headers[] = 'Return-Path: <' . $config['board_email'] . '>';
$headers[] = 'Sender: <' . $config['board_email'] . '>';
$headers[] = 'MIME-Version: 1.0';
$headers[] = 'Message-ID: <' . $this->generate_message_id() . '>';
$headers[] = 'Date: ' . date('r', time());
$headers[] = 'Content-Type: text/plain; charset=UTF-8'; // format=flowed
$headers[] = 'Content-Transfer-Encoding: 8bit'; // 7bit
$headers[] = 'X-Priority: ' . $this->mail_priority;
$headers[] = 'X-MSMail-Priority: ' . (($this->mail_priority == MAIL_LOW_PRIORITY) ? 'Low' : (($this->mail_priority == MAIL_NORMAL_PRIORITY) ? 'Normal' : 'High'));
$headers[] = 'X-Mailer: phpBB3';
$headers[] = 'X-MimeOLE: phpBB3';
$headers[] = 'X-phpBB-Origin: phpbb://' . str_replace(array('http://', 'https://'), array('', ''), generate_board_url());
if (sizeof($this->extra_headers))
{
$headers = array_merge($headers, $this->extra_headers);
}
return $headers;
}
/**
* Send out emails
*/
function msg_email()
{
global $config, $user;
if (empty($config['email_enable']))
{
return false;
}
// Addresses to send to?
if (empty($this->addresses) || (empty($this->addresses['to']) && empty($this->addresses['cc']) && empty($this->addresses['bcc'])))
{
// Send was successful. ;)
return true;
}
$use_queue = false;
if ($config['email_package_size'] && $this->use_queue)
{
if (empty($this->queue))
{
$this->queue = new queue();
$this->queue->init('email', $config['email_package_size']);
}
$use_queue = true;
}
if (empty($this->replyto))
{
$this->replyto = '<' . $config['board_contact'] . '>';
}
if (empty($this->from))
{
$this->from = '<' . $config['board_contact'] . '>';
}
$encode_eol = ($config['smtp_delivery']) ? "\r\n" : $this->eol;
// Build to, cc and bcc strings
$to = $cc = $bcc = '';
foreach ($this->addresses as $type => $address_ary)
{
if ($type == 'im')
{
continue;
}
foreach ($address_ary as $which_ary)
{
$$type .= (($$type != '') ? ', ' : '') . (($which_ary['name'] != '') ? mail_encode($which_ary['name'], $encode_eol) . ' <' . $which_ary['email'] . '>' : $which_ary['email']);
}
}
// Build header
$headers = $this->build_header($to, $cc, $bcc);
// Send message ...
if (!$use_queue)
{
$mail_to = ($to == '') ? 'undisclosed-recipients:;' : $to;
$err_msg = '';
if ($config['smtp_delivery'])
{
$result = smtpmail($this->addresses, mail_encode($this->subject), wordwrap(utf8_wordwrap($this->msg), 997, "\n", true), $err_msg, $headers);
}
else
{
$result = phpbb_mail($mail_to, $this->subject, $this->msg, $headers, $this->eol, $err_msg);
}
if (!$result)
{
$this->error('EMAIL', $err_msg);
return false;
}
}
else
{
$this->queue->put('email', array(
'to' => $to,
'addresses' => $this->addresses,
'subject' => $this->subject,
'msg' => $this->msg,
'headers' => $headers)
);
}
return true;
}
/**
* Send jabber message out
*/
function msg_jabber()
{
global $config, $db, $user, $phpbb_root_path, $phpEx;
if (empty($config['jab_enable']) || empty($config['jab_host']) || empty($config['jab_username']) || empty($config['jab_password']))
{
return false;
}
if (empty($this->addresses['im']))
{
// Send was successful. ;)
return true;
}
$use_queue = false;
if ($config['jab_package_size'] && $this->use_queue)
{
if (empty($this->queue))
{
$this->queue = new queue();
$this->queue->init('jabber', $config['jab_package_size']);
}
$use_queue = true;
}
$addresses = array();
foreach ($this->addresses['im'] as $type => $uid_ary)
{
$addresses[] = $uid_ary['uid'];
}
$addresses = array_unique($addresses);
if (!$use_queue)
{
include_once($phpbb_root_path . 'includes/functions_jabber.' . $phpEx);
$this->jabber = new jabber($config['jab_host'], $config['jab_port'], $config['jab_username'], htmlspecialchars_decode($config['jab_password']), $config['jab_use_ssl']);
if (!$this->jabber->connect())
{
$this->error('JABBER', $user->lang['ERR_JAB_CONNECT'] . '<br />' . $this->jabber->get_log());
return false;
}
if (!$this->jabber->login())
{
$this->error('JABBER', $user->lang['ERR_JAB_AUTH'] . '<br />' . $this->jabber->get_log());
return false;
}
foreach ($addresses as $address)
{
$this->jabber->send_message($address, $this->msg, $this->subject);
}
$this->jabber->disconnect();
}
else
{
$this->queue->put('jabber', array(
'addresses' => $addresses,
'subject' => $this->subject,
'msg' => $this->msg)
);
}
unset($addresses);
return true;
}
}
/**
* handling email and jabber queue
* @package phpBB3
*/
class queue
{
var $data = array();
var $queue_data = array();
var $package_size = 0;
var $cache_file = '';
var $eol = "\n";
/**
* constructor
*/
function queue()
{
global $phpEx, $phpbb_root_path;
$this->data = array();
$this->cache_file = "{$phpbb_root_path}cache/queue.$phpEx";
// Determine EOL character (\n for UNIX, \r\n for Windows and \r for Mac)
$this->eol = (!defined('PHP_EOL')) ? (($eol = strtolower(substr(PHP_OS, 0, 3))) == 'win') ? "\r\n" : (($eol == 'mac') ? "\r" : "\n") : PHP_EOL;
$this->eol = (!$this->eol) ? "\n" : $this->eol;
}
/**
* Init a queue object
*/
function init($object, $package_size)
{
$this->data[$object] = array();
$this->data[$object]['package_size'] = $package_size;
$this->data[$object]['data'] = array();
}
/**
* Put object in queue
*/
function put($object, $scope)
{
$this->data[$object]['data'][] = $scope;
}
/**
* Obtains exclusive lock on queue cache file.
* Returns resource representing the lock
*/
function lock()
{
// For systems that can't have two processes opening
// one file for writing simultaneously
if (file_exists($this->cache_file . '.lock'))
{
$mode = 'rb';
}
else
{
$mode = 'wb';
}
$lock_fp = @fopen($this->cache_file . '.lock', $mode);
if ($mode == 'wb')
{
if (!$lock_fp)
{
// Two processes may attempt to create lock file at the same time.
// Have the losing process try opening the lock file again for reading
// on the assumption that the winning process created it
$mode = 'rb';
$lock_fp = @fopen($this->cache_file . '.lock', $mode);
}
else
{
// Only need to set mode when the lock file is written
@chmod($this->cache_file . '.lock', 0666);
}
}
if ($lock_fp)
{
@flock($lock_fp, LOCK_EX);
}
return $lock_fp;
}
/**
* Releases lock on queue cache file, using resource obtained from lock()
*/
function unlock($lock_fp)
{
// lock() will return null if opening lock file, and thus locking, failed.
// Accept null values here so that client code does not need to check them
if ($lock_fp)
{
@flock($lock_fp, LOCK_UN);
fclose($lock_fp);
}
}
/**
* Process queue
* Using lock file
*/
function process()
{
global $db, $config, $phpEx, $phpbb_root_path, $user;
$lock_fp = $this->lock();
// avoid races, check file existence once
$have_cache_file = file_exists($this->cache_file);
if (!$have_cache_file || $config['last_queue_run'] > time() - $config['queue_interval'])
{
if (!$have_cache_file)
{
set_config('last_queue_run', time(), true);
}
$this->unlock($lock_fp);
return;
}
set_config('last_queue_run', time(), true);
include($this->cache_file);
foreach ($this->queue_data as $object => $data_ary)
{
@set_time_limit(0);
if (!isset($data_ary['package_size']))
{
$data_ary['package_size'] = 0;
}
$package_size = $data_ary['package_size'];
$num_items = (!$package_size || sizeof($data_ary['data']) < $package_size) ? sizeof($data_ary['data']) : $package_size;
/*
* This code is commented out because it causes problems on some web hosts.
* The core problem is rather restrictive email sending limits.
* This code is nly useful if you have no such restrictions from the
* web host and the package size setting is wrong.
// If the amount of emails to be sent is way more than package_size than we need to increase it to prevent backlogs...
if (sizeof($data_ary['data']) > $package_size * 2.5)
{
$num_items = sizeof($data_ary['data']);
}
*/
switch ($object)
{
case 'email':
// Delete the email queued objects if mailing is disabled
if (!$config['email_enable'])
{
unset($this->queue_data['email']);
continue 2;
}
break;
case 'jabber':
if (!$config['jab_enable'])
{
unset($this->queue_data['jabber']);
continue 2;
}
include_once($phpbb_root_path . 'includes/functions_jabber.' . $phpEx);
$this->jabber = new jabber($config['jab_host'], $config['jab_port'], $config['jab_username'], htmlspecialchars_decode($config['jab_password']), $config['jab_use_ssl']);
if (!$this->jabber->connect())
{
messenger::error('JABBER', $user->lang['ERR_JAB_CONNECT']);
continue 2;
}
if (!$this->jabber->login())
{
messenger::error('JABBER', $user->lang['ERR_JAB_AUTH']);
continue 2;
}
break;
default:
$this->unlock($lock_fp);
return;
}
for ($i = 0; $i < $num_items; $i++)
{
// Make variables available...
extract(array_shift($this->queue_data[$object]['data']));
switch ($object)
{
case 'email':
$err_msg = '';
$to = (!$to) ? 'undisclosed-recipients:;' : $to;
if ($config['smtp_delivery'])
{
$result = smtpmail($addresses, mail_encode($subject), wordwrap(utf8_wordwrap($msg), 997, "\n", true), $err_msg, $headers);
}
else
{
$result = phpbb_mail($to, $subject, $msg, $headers, $this->eol, $err_msg);
}
if (!$result)
{
messenger::error('EMAIL', $err_msg);
continue 2;
}
break;
case 'jabber':
foreach ($addresses as $address)
{
if ($this->jabber->send_message($address, $msg, $subject) === false)
{
messenger::error('JABBER', $this->jabber->get_log());
continue 3;
}
}
break;
}
}
// No more data for this object? Unset it
if (!sizeof($this->queue_data[$object]['data']))
{
unset($this->queue_data[$object]);
}
// Post-object processing
switch ($object)
{
case 'jabber':
// Hang about a couple of secs to ensure the messages are
// handled, then disconnect
$this->jabber->disconnect();
break;
}
}
if (!sizeof($this->queue_data))
{
@unlink($this->cache_file);
}
else
{
if ($fp = @fopen($this->cache_file, 'wb'))
{
fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$this->queue_data = unserialize(" . var_export(serialize($this->queue_data), true) . ");\n\n?>");
fclose($fp);
phpbb_chmod($this->cache_file, CHMOD_READ | CHMOD_WRITE);
}
}
$this->unlock($lock_fp);
}
/**
* Save queue
*/
function save()
{
if (!sizeof($this->data))
{
return;
}
$lock_fp = $this->lock();
if (file_exists($this->cache_file))
{
include($this->cache_file);
foreach ($this->queue_data as $object => $data_ary)
{
if (isset($this->data[$object]) && sizeof($this->data[$object]))
{
$this->data[$object]['data'] = array_merge($data_ary['data'], $this->data[$object]['data']);
}
else
{
$this->data[$object]['data'] = $data_ary['data'];
}
}
}
if ($fp = @fopen($this->cache_file, 'w'))
{
fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$this->queue_data = unserialize(" . var_export(serialize($this->data), true) . ");\n\n?>");
fclose($fp);
phpbb_chmod($this->cache_file, CHMOD_READ | CHMOD_WRITE);
}
$this->unlock($lock_fp);
}
}
/**
* Replacement or substitute for PHP's mail command
*/
function smtpmail($addresses, $subject, $message, &$err_msg, $headers = false)
{
global $config, $user;
// Fix any bare linefeeds in the message to make it RFC821 Compliant.
$message = preg_replace("#(?<!\r)\n#si", "\r\n", $message);
if ($headers !== false)
{
if (!is_array($headers))
{
// Make sure there are no bare linefeeds in the headers
$headers = preg_replace('#(?<!\r)\n#si', "\n", $headers);
$headers = explode("\n", $headers);
}
// Ok this is rather confusing all things considered,
// but we have to grab bcc and cc headers and treat them differently
// Something we really didn't take into consideration originally
$headers_used = array();
foreach ($headers as $header)
{
if (strpos(strtolower($header), 'cc:') === 0 || strpos(strtolower($header), 'bcc:') === 0)
{
continue;
}
$headers_used[] = trim($header);
}
$headers = chop(implode("\r\n", $headers_used));
}
if (trim($subject) == '')
{
$err_msg = (isset($user->lang['NO_EMAIL_SUBJECT'])) ? $user->lang['NO_EMAIL_SUBJECT'] : 'No email subject specified';
return false;
}
if (trim($message) == '')
{
$err_msg = (isset($user->lang['NO_EMAIL_MESSAGE'])) ? $user->lang['NO_EMAIL_MESSAGE'] : 'Email message was blank';
return false;
}
$mail_rcpt = $mail_to = $mail_cc = array();
// Build correct addresses for RCPT TO command and the client side display (TO, CC)
if (isset($addresses['to']) && sizeof($addresses['to']))
{
foreach ($addresses['to'] as $which_ary)
{
$mail_to[] = ($which_ary['name'] != '') ? mail_encode(trim($which_ary['name'])) . ' <' . trim($which_ary['email']) . '>' : '<' . trim($which_ary['email']) . '>';
$mail_rcpt['to'][] = '<' . trim($which_ary['email']) . '>';
}
}
if (isset($addresses['bcc']) && sizeof($addresses['bcc']))
{
foreach ($addresses['bcc'] as $which_ary)