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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);
}
/**
* 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))
{
$template_lang = basename($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 . $template_file];
if (!$template_path)
{
$template_path = (!empty($user->lang_path)) ? $user->lang_path : $phpbb_root_path . 'language/';
$template_path .= $template_lang . '/email';
}
$tpl->set_custom_template($template_path, $template_lang . '_email', 'email');
$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))
{
$this->queue->save();
return;
}
}
/**
* Return email header
*/
function build_header($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: <' . md5(unique_id(time())) . '@' . $config['server_name'] . '>';
$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'], $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;
}
/**
* Process queue
* Using lock file
*/
function process()
{
global $db, $config, $phpEx, $phpbb_root_path, $user;
set_config('last_queue_run', time(), true);
// Delete stale lock file
if (file_exists($this->cache_file . '.lock') && !file_exists($this->cache_file))
{
@unlink($this->cache_file . '.lock');
return;
}
if (!file_exists($this->cache_file) || (file_exists($this->cache_file . '.lock') && filemtime($this->cache_file) > time() - $config['queue_interval']))
{
return;
}
$fp = @fopen($this->cache_file . '.lock', 'wb');
fclose($fp);
@chmod($this->cache_file . '.lock', 0777);
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']) : $package_size;
// If the amount of emails to be sent is way more than package_size than we need to increase it to prevent backlogs...
if (sizeof($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'], $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', $user->lang['ERR_JAB_AUTH']);
continue 2;
}
break;
default:
return;
}
for ($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)
{
@unlink($this->cache_file . '.lock');
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($this->cache_file, 'wb'))
{
@flock($fp, LOCK_EX);
fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$this->queue_data = unserialize(" . var_export(serialize($this->queue_data), true) . ");\n\n?>");
@flock($fp, LOCK_UN);
fclose($fp);
phpbb_chmod($this->cache_file, CHMOD_READ | CHMOD_WRITE);
}
}
@unlink($this->cache_file . '.lock');
}
/**
* Save queue
*/
function save()
{
if (!sizeof($this->data))
{
return;
}
if (file_exists($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($this->cache_file, 'w'))
{
@flock($fp, LOCK_EX);
fwrite($fp, "<?php\nif (!defined('IN_PHPBB')) exit;\n\$this->queue_data = unserialize(" . var_export(serialize($this->data), true) . ");\n\n?>");
@flock($fp, LOCK_UN);
fclose($fp);
phpbb_chmod($this->cache_file, CHMOD_READ | CHMOD_WRITE);
}
}
}
/**
* Replacement or substitute for PHP's mail command
*/
function smtpmail($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)
{
$mail_rcpt['bcc'][] = '<' . trim($which_ary['email']) . '>';
}
}
if (isset($addresses['cc']) && sizeof($addresses['cc']))
{
foreach ($addresses['cc'] as $which_ary)
{
$mail_cc[] = ($which_ary['name'] != '') ? mail_encode(trim($which_ary['name'])) . ' <' . trim($which_ary['email']) . '>' : '<' . trim($which_ary['email']) . '>';
$mail_rcpt['cc'][] = '<' . trim($which_ary['email']) . '>';
}
}
$smtp = new smtp_class();
$errno = 0;
$errstr = '';
$smtp->add_backtrace('Connecting to ' . $config['smtp_host'] . ':' . $config['smtp_port']);
// Ok we have error checked as much as we can to this point let's get on it already.
ob_start();
$smtp->socket = fsockopen($config['smtp_host'], $config['smtp_port'], $errno, $errstr, 20);
$error_contents = ob_get_clean();
if (!$smtp->socket)
{
if ($errstr)
{
$errstr = utf8_convert_message($errstr);
}
$err_msg = (isset($user->lang['NO_CONNECT_TO_SMTP_HOST'])) ? sprintf($user->lang['NO_CONNECT_TO_SMTP_HOST'], $errno, $errstr) : "Could not connect to smtp host : $errno : $errstr";
$err_msg .= ($error_contents) ? '<br /><br />' . htmlspecialchars($error_contents) : '';
return false;
}
// Wait for reply
if ($err_msg = $smtp->server_parse('220', __LINE__))
{
$smtp->close_session($err_msg);
return false;
}
// Let me in. This function handles the complete authentication process
if ($err_msg = $smtp->log_into_server($config['smtp_host'], $config['smtp_username'], $config['smtp_password'], $config['smtp_auth_method']))
{
$smtp->close_session($err_msg);
return false;
}
// From this point onward most server response codes should be 250
// Specify who the mail is from....
$smtp->server_send('MAIL FROM:<' . $config['board_email'] . '>');
if ($err_msg = $smtp->server_parse('250', __LINE__))
{
$smtp->close_session($err_msg);
return false;
}
// Specify each user to send to and build to header.
$to_header = implode(', ', $mail_to);
$cc_header = implode(', ', $mail_cc);
// Now tell the MTA to send the Message to the following people... [TO, BCC, CC]
$rcpt = false;
foreach ($mail_rcpt as $type => $mail_to_addresses)
{
foreach ($mail_to_addresses as $mail_to_address)
{
// Add an additional bit of error checking to the To field.
if (preg_match('#[^ ]+\@[^ ]+#', $mail_to_address))
{
$smtp->server_send("RCPT TO:$mail_to_address");
if ($err_msg = $smtp->server_parse('250', __LINE__))
{
// We continue... if users are not resolved we do not care
if ($smtp->numeric_response_code != 550)
{
$smtp->close_session($err_msg);
return false;
}
}
else
{
$rcpt = true;
}
}
}
}
// We try to send messages even if a few people do not seem to have valid email addresses, but if no one has, we have to exit here.
if (!$rcpt)
{
$user->session_begin();
$err_msg .= '<br /><br />';
$err_msg .= (isset($user->lang['INVALID_EMAIL_LOG'])) ? sprintf($user->lang['INVALID_EMAIL_LOG'], htmlspecialchars($mail_to_address)) : '<strong>' . htmlspecialchars($mail_to_address) . '</strong> possibly an invalid email address?';
$smtp->close_session($err_msg);
return false;
}
// Ok now we tell the server we are ready to start sending data
$smtp->server_send('DATA');
// This is the last response code we look for until the end of the message.
if ($err_msg = $smtp->server_parse('354', __LINE__))
{
$smtp->close_session($err_msg);
return false;
}
// Send the Subject Line...
$smtp->server_send("Subject: $subject");
// Now the To Header.
$to_header = ($to_header == '') ? 'undisclosed-recipients:;' : $to_header;
$smtp->server_send("To: $to_header");
// Now the CC Header.
if ($cc_header != '')
{
$smtp->server_send("CC: $cc_header");
}
// Now any custom headers....
if ($headers !== false)
{
$smtp->server_send("$headers\r\n");
}
// Ok now we are ready for the message...
$smtp->server_send($message);
// Ok the all the ingredients are mixed in let's cook this puppy...
$smtp->server_send('.');
if ($err_msg = $smtp->server_parse('250', __LINE__))
{
$smtp->close_session($err_msg);
return false;
}
// Now tell the server we are done and close the socket...
$smtp->server_send('QUIT');
$smtp->close_session($err_msg);
return true;
}
/**
* SMTP Class
* Auth Mechanisms originally taken from the AUTH Modules found within the PHP Extension and Application Repository (PEAR)
* See docs/AUTHORS for more details
* @package phpBB3
*/
class smtp_class
{
var $server_response = '';
var $socket = 0;
var $responses = array();
var $commands = array();
var $numeric_response_code = 0;
var $backtrace = false;
var $backtrace_log = array();
function smtp_class()
{
// Always create a backtrace for admins to identify SMTP problems
$this->backtrace = true;
$this->backtrace_log = array();
}
/**
* Add backtrace message for debugging
*/
function add_backtrace($message)
{
if ($this->backtrace)
{
$this->backtrace_log[] = utf8_htmlspecialchars($message);
}
}
/**
* Send command to smtp server
*/
function server_send($command, $private_info = false)
{
fputs($this->socket, $command . "\r\n");
(!$private_info) ? $this->add_backtrace("# $command") : $this->add_backtrace('# Omitting sensitive information');
// We could put additional code here
}
/**
* We use the line to give the support people an indication at which command the error occurred
*/
function server_parse($response, $line)
{
global $user;
$this->server_response = '';
$this->responses = array();
$this->numeric_response_code = 0;
while (substr($this->server_response, 3, 1) != ' ')
{
if (!($this->server_response = fgets($this->socket, 256)))
{
return (isset($user->lang['NO_EMAIL_RESPONSE_CODE'])) ? $user->lang['NO_EMAIL_RESPONSE_CODE'] : 'Could not get mail server response codes';
}
$this->responses[] = substr(rtrim($this->server_response), 4);
$this->numeric_response_code = (int) substr($this->server_response, 0, 3);
$this->add_backtrace("LINE: $line <- {$this->server_response}");
}
if (!(substr($this->server_response, 0, 3) == $response))
{
$this->numeric_response_code = (int) substr($this->server_response, 0, 3);
return (isset($user->lang['EMAIL_SMTP_ERROR_RESPONSE'])) ? sprintf($user->lang['EMAIL_SMTP_ERROR_RESPONSE'], $line, $this->server_response) : "Ran into problems sending Mail at <strong>Line $line</strong>. Response: $this->server_response";
}
return 0;
}
/**
* Close session
*/
function close_session(&$err_msg)
{
fclose($this->socket);
if ($this->backtrace)
{
$message = '<h1>Backtrace</h1><p>' . implode('<br />', $this->backtrace_log) . '</p>';
$err_msg .= $message;
}
}
/**
* Log into server and get possible auth codes if neccessary
*/
function log_into_server($hostname, $username, $password, $default_auth_method)
{
global $user;
$err_msg = '';
// Here we try to determine the *real* hostname (reverse DNS entry preferrably)
$local_host = $user->host;
if (function_exists('php_uname'))
{
$local_host = php_uname('n');
// Able to resolve name to IP
if (($addr = @gethostbyname($local_host)) !== $local_host)
{
// Able to resolve IP back to name
if (($name = @gethostbyaddr($addr)) !== $addr)
{
$local_host = $name;
}
}
}
// If we are authenticating through pop-before-smtp, we
// have to login ones before we get authenticated
// NOTE: on some configurations the time between an update of the auth database takes so
// long that the first email send does not work. This is not a biggie on a live board (only
// the install mail will most likely fail) - but on a dynamic ip connection this might produce
// severe problems and is not fixable!
if ($default_auth_method == 'POP-BEFORE-SMTP' && $username && $password)
{
global $config;
$errno = 0;
$errstr = '';
$this->server_send("QUIT");
fclose($this->socket);
$result = $this->pop_before_smtp($hostname, $username, $password);
$username = $password = $default_auth_method = '';
// We need to close the previous session, else the server is not
// able to get our ip for matching...
if (!$this->socket = @fsockopen($config['smtp_host'], $config['smtp_port'], $errno, $errstr, 10))
{
if ($errstr)
{
$errstr = utf8_convert_message($errstr);
}
$err_msg = (isset($user->lang['NO_CONNECT_TO_SMTP_HOST'])) ? sprintf($user->lang['NO_CONNECT_TO_SMTP_HOST'], $errno, $errstr) : "Could not connect to smtp host : $errno : $errstr";
return $err_msg;
}
// Wait for reply
if ($err_msg = $this->server_parse('220', __LINE__))
{
$this->close_session($err_msg);
return $err_msg;
}
}
// Try EHLO first
$this->server_send("EHLO {$local_host}");
if ($err_msg = $this->server_parse('250', __LINE__))
{
// a 503 response code means that we're already authenticated
if ($this->numeric_response_code == 503)
{
return false;
}
// If EHLO fails, we try HELO
$this->server_send("HELO {$local_host}");
if ($err_msg = $this->server_parse('250', __LINE__))
{
return ($this->numeric_response_code == 503) ? false : $err_msg;
}
}
foreach ($this->responses as $response)
{
$response = explode(' ', $response);
$response_code = $response[0];
unset($response[0]);
$this->commands[$response_code] = implode(' ', $response);
}
// If we are not authenticated yet, something might be wrong if no username and passwd passed
if (!$username || !$password)
{
return false;
}
if (!isset($this->commands['AUTH']))
{
return (isset($user->lang['SMTP_NO_AUTH_SUPPORT'])) ? $user->lang['SMTP_NO_AUTH_SUPPORT'] : 'SMTP server does not support authentication';
}
// Get best authentication method
$available_methods = explode(' ', $this->commands['AUTH']);
// Define the auth ordering if the default auth method was not found
$auth_methods = array('PLAIN', 'LOGIN', 'CRAM-MD5', 'DIGEST-MD5');
$method = '';
if (in_array($default_auth_method, $available_methods))
{
$method = $default_auth_method;
}
else
{
foreach ($auth_methods as $_method)
{
if (in_array($_method, $available_methods))
{
$method = $_method;
break;
}
}
}
if (!$method)
{
return (isset($user->lang['NO_SUPPORTED_AUTH_METHODS'])) ? $user->lang['NO_SUPPORTED_AUTH_METHODS'] : 'No supported authentication methods';
}
$method = strtolower(str_replace('-', '_', $method));
return $this->$method($username, $password);
}
/**
* Pop before smtp authentication
*/
function pop_before_smtp($hostname, $username, $password)
{
global $user;
if (!$this->socket = @fsockopen($hostname, 110, $errno, $errstr, 10))
{
if ($errstr)
{
$errstr = utf8_convert_message($errstr);
}
return (isset($user->lang['NO_CONNECT_TO_SMTP_HOST'])) ? sprintf($user->lang['NO_CONNECT_TO_SMTP_HOST'], $errno, $errstr) : "Could not connect to smtp host : $errno : $errstr";
}
$this->server_send("USER $username", true);
if ($err_msg = $this->server_parse('+OK', __LINE__))
{
return $err_msg;
}
$this->server_send("PASS $password", true);
if ($err_msg = $this->server_parse('+OK', __LINE__))
{
return $err_msg;
}
$this->server_send('QUIT');
fclose($this->socket);
return false;
}
/**
* Plain authentication method
*/
function plain($username, $password)
{
$this->server_send('AUTH PLAIN');
if ($err_msg = $this->server_parse('334', __LINE__))
{
return ($this->numeric_response_code == 503) ? false : $err_msg;
}
$base64_method_plain = base64_encode("\0" . $username . "\0" . $password);
$this->server_send($base64_method_plain, true);
if ($err_msg = $this->server_parse('235', __LINE__))
{
return $err_msg;
}
return false;
}
/**
* Login authentication method
*/
function login($username, $password)
{
$this->server_send('AUTH LOGIN');
if ($err_msg = $this->server_parse('334', __LINE__))
{
return ($this->numeric_response_code == 503) ? false : $err_msg;
}
$this->server_send(base64_encode($username), true);
if ($err_msg = $this->server_parse('334', __LINE__))
{
return $err_msg;
}
$this->server_send(base64_encode($password), true);
if ($err_msg = $this->server_parse('235', __LINE__))
{
return $err_msg;
}
return false;
}
/**
* cram_md5 authentication method
*/
function cram_md5($username, $password)
{
$this->server_send('AUTH CRAM-MD5');
if ($err_msg = $this->server_parse('334', __LINE__))
{
return ($this->numeric_response_code == 503) ? false : $err_msg;
}
$md5_challenge = base64_decode($this->responses[0]);
$password = (strlen($password) > 64) ? pack('H32', md5($password)) : ((strlen($password) < 64) ? str_pad($password, 64, chr(0)) : $password);
$md5_digest = md5((substr($password, 0, 64) ^ str_repeat(chr(0x5C), 64)) . (pack('H32', md5((substr($password, 0, 64) ^ str_repeat(chr(0x36), 64)) . $md5_challenge))));
$base64_method_cram_md5 = base64_encode($username . ' ' . $md5_digest);
$this->server_send($base64_method_cram_md5, true);
if ($err_msg = $this->server_parse('235', __LINE__))
{
return $err_msg;
}
return false;
}
/**
* digest_md5 authentication method
* A real pain in the ***
*/
function digest_md5($username, $password)
{
global $config, $user;
$this->server_send('AUTH DIGEST-MD5');
if ($err_msg = $this->server_parse('334', __LINE__))
{
return ($this->numeric_response_code == 503) ? false : $err_msg;
}
$md5_challenge = base64_decode($this->responses[0]);
// Parse the md5 challenge - from AUTH_SASL (PEAR)
$tokens = array();
while (preg_match('/^([a-z-]+)=("[^"]+(?<!\\\)"|[^,]+)/i', $md5_challenge, $matches))
{
// Ignore these as per rfc2831
if ($matches[1] == 'opaque' || $matches[1] == 'domain')
{
$md5_challenge = substr($md5_challenge, strlen($matches[0]) + 1);
continue;
}
// Allowed multiple "realm" and "auth-param"
if (!empty($tokens[$matches[1]]) && ($matches[1] == 'realm' || $matches[1] == 'auth-param'))
{
if (is_array($tokens[$matches[1]]))
{
$tokens[$matches[1]][] = preg_replace('/^"(.*)"$/', '\\1', $matches[2]);
}
else
{
$tokens[$matches[1]] = array($tokens[$matches[1]], preg_replace('/^"(.*)"$/', '\\1', $matches[2]));
}
}
else if (!empty($tokens[$matches[1]])) // Any other multiple instance = failure
{
$tokens = array();
break;
}
else
{
$tokens[$matches[1]] = preg_replace('/^"(.*)"$/', '\\1', $matches[2]);
}
// Remove the just parsed directive from the challenge
$md5_challenge = substr($md5_challenge, strlen($matches[0]) + 1);
}
// Realm
if (empty($tokens['realm']))
{
$tokens['realm'] = (function_exists('php_uname')) ? php_uname('n') : $user->host;
}
// Maxbuf
if (empty($tokens['maxbuf']))
{
$tokens['maxbuf'] = 65536;
}
// Required: nonce, algorithm
if (empty($tokens['nonce']) || empty($tokens['algorithm']))
{
$tokens = array();
}
$md5_challenge = $tokens;
if (!empty($md5_challenge))
{
$str = '';
for ($i = 0; $i < 32; $i++)
{
$str .= chr(mt_rand(0, 255));
}
$cnonce = base64_encode($str);
$digest_uri = 'smtp/' . $config['smtp_host'];
$auth_1 = sprintf('%s:%s:%s', pack('H32', md5(sprintf('%s:%s:%s', $username, $md5_challenge['realm'], $password))), $md5_challenge['nonce'], $cnonce);
$auth_2 = 'AUTHENTICATE:' . $digest_uri;
$response_value = md5(sprintf('%s:%s:00000001:%s:auth:%s', md5($auth_1), $md5_challenge['nonce'], $cnonce, md5($auth_2)));
$input_string = sprintf('username="%s",realm="%s",nonce="%s",cnonce="%s",nc="00000001",qop=auth,digest-uri="%s",response=%s,%d', $username, $md5_challenge['realm'], $md5_challenge['nonce'], $cnonce, $digest_uri, $response_value, $md5_challenge['maxbuf']);
}
else
{
return (isset($user->lang['INVALID_DIGEST_CHALLENGE'])) ? $user->lang['INVALID_DIGEST_CHALLENGE'] : 'Invalid digest challenge';
}
$base64_method_digest_md5 = base64_encode($input_string);
$this->server_send($base64_method_digest_md5, true);
if ($err_msg = $this->server_parse('334', __LINE__))
{
return $err_msg;
}
$this->server_send(' ');
if ($err_msg = $this->server_parse('235', __LINE__))
{
return $err_msg;
}
return false;
}
}
/**
* Encodes the given string for proper display in UTF-8.
*
* This version is using base64 encoded data. The downside of this
* is if the mail client does not understand this encoding the user
* is basically doomed with an unreadable subject.
*
* Please note that this version fully supports RFC 2045 section 6.8.
*
* @param string $eol End of line we are using (optional to be backwards compatible)
*/
function mail_encode($str, $eol = "\r\n")
{
// define start delimimter, end delimiter and spacer
$start = "=?UTF-8?B?";
$end = "?=";
$delimiter = "$eol ";
// Maximum length is 75. $split_length *must* be a multiple of 4, but <= 75 - strlen($start . $delimiter . $end)!!!
$split_length = 60;
$encoded_str = base64_encode($str);
// If encoded string meets the limits, we just return with the correct data.
if (strlen($encoded_str) <= $split_length)
{
return $start . $encoded_str . $end;
}
// If there is only ASCII data, we just return what we want, correctly splitting the lines.
if (strlen($str) === utf8_strlen($str))
{
return $start . implode($end . $delimiter . $start, str_split($encoded_str, $split_length)) . $end;
}
// UTF-8 data, compose encoded lines
$array = utf8_str_split($str);
$str = '';
while (sizeof($array))
{
$text = '';
while (sizeof($array) && intval((strlen($text . $array[0]) + 2) / 3) << 2 <= $split_length)
{
$text .= array_shift($array);
}
$str .= $start . base64_encode($text) . $end . $delimiter;
}
return substr($str, 0, -strlen($delimiter));
}
/**
* Wrapper for sending out emails with the PHP's mail function
*/
function phpbb_mail($to, $subject, $msg, $headers, $eol, &$err_msg)
{
global $config;
// We use the EOL character for the OS here because the PHP mail function does not correctly transform line endings. On Windows SMTP is used (SMTP is \r\n), on UNIX a command is used...
// Reference: http://bugs.php.net/bug.php?id=15841
$headers = implode($eol, $headers);
ob_start();
// On some PHP Versions mail() *may* fail if there are newlines within the subject.
// Newlines are used as a delimiter for lines in mail_encode() according to RFC 2045 section 6.8.
// Because PHP can't decide what is wanted we revert back to the non-RFC-compliant way of separating by one space (Use '' as parameter to mail_encode() results in SPACE used)
$result = $config['email_function_name']($to, mail_encode($subject, ''), wordwrap(utf8_wordwrap($msg), 997, "\n", true), $headers);
$err_msg = ob_get_clean();
return $result;
}
?>
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