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<?php
/**
* DB based User-to-Email and Email-to-User lookup
*
* Add it to the plugins list in config.inc.php and set
* SQL queries to resolve usernames, e-mail addresses and hostnames from the database
* %u will be replaced with the current username for login.
* %m will be replaced with the current e-mail address for login.
*
* Queries should select the user's e-mail address, username or the imap hostname as first column
* The email query could optionally select identity data columns in specified order:
* name, organization, reply-to, bcc, signature, html_signature
*
* $config['virtuser_query'] = ['email' => '', 'user' => '', 'host' => '', 'alias' => ''];
*
* The email query can return more than one record to create more identities.
* This requires identities_level option to be set to value less than 2.
*
* By default Roundcube database is used. To use different database (or host)
* you can specify DSN string in $config['virtuser_query_dsn'] option.
*
* @author Aleksander Machniak <alec@alec.pl>
* @author Steffen Vogel
* @author Tim Gerundt
* @license GNU GPLv3+
*/
class virtuser_query extends rcube_plugin
{
private $config;
private $app;
private $db;
function init()
{
$this->app = rcmail::get_instance();
$this->config = $this->app->config->get('virtuser_query');
if (!empty($this->config)) {
if (is_string($this->config)) {
$this->config = ['email' => $this->config];
}
if (!empty($this->config['email'])) {
$this->add_hook('user2email', [$this, 'user2email']);
}
if (!empty($this->config['user'])) {
$this->add_hook('email2user', [$this, 'email2user']);
}
if (!empty($this->config['host'])) {
$this->add_hook('authenticate', [$this, 'user2host']);
}
if (!empty($this->config['alias'])) {
$this->add_hook('authenticate', [$this, 'alias2user']);
}
}
}
/**
* User > Email
*/
function user2email($p)
{
$dbh = $this->get_dbh();
$sql_result = $dbh->query(preg_replace('/%u/', $dbh->escape($p['user']), $this->config['email']));
$result = [];
while ($sql_arr = $dbh->fetch_array($sql_result)) {
if (strpos($sql_arr[0], '@')) {
if (!empty($p['extended']) && count($sql_arr) > 1) {
$result[] = [
'email' => rcube_utils::idn_to_ascii($sql_arr[0]),
'name' => $sql_arr[1] ?? '',
'organization' => $sql_arr[2] ?? '',
'reply-to' => isset($sql_arr[3]) ? rcube_utils::idn_to_ascii($sql_arr[3]) : '',
'bcc' => isset($sql_arr[4]) ? rcube_utils::idn_to_ascii($sql_arr[4]) : '',
'signature' => $sql_arr[5] ?? '',
'html_signature' => isset($sql_arr[6]) ? intval($sql_arr[6]) : 0,
];
}
else {
$result[] = $sql_arr[0];
}
if (!empty($p['first'])) {
break;
}
}
}
$p['email'] = $result;
return $p;
}
/**
* EMail > User
*/
function email2user($p)
{
$dbh = $this->get_dbh();
$sql_result = $dbh->query(preg_replace('/%m/', $dbh->escape($p['email']), $this->config['user']));
if ($sql_arr = $dbh->fetch_array($sql_result)) {
$p['user'] = $sql_arr[0];
}
return $p;
}
/**
* User > Host
*/
function user2host($p)
{
$dbh = $this->get_dbh();
$sql_result = $dbh->query(preg_replace('/%u/', $dbh->escape($p['user']), $this->config['host']));
if ($sql_arr = $dbh->fetch_array($sql_result)) {
$p['host'] = $sql_arr[0];
}
return $p;
}
/**
* Alias > User
*/
function alias2user($p)
{
$dbh = $this->get_dbh();
$sql_result = $dbh->query(preg_replace('/%u/', $dbh->escape($p['user']), $this->config['alias']));
if ($sql_arr = $dbh->fetch_array($sql_result)) {
$p['user'] = $sql_arr[0];
}
return $p;
}
/**
* Initialize database handler
*/
function get_dbh()
{
if (!$this->db) {
if ($dsn = $this->app->config->get('virtuser_query_dsn')) {
// connect to the virtuser database
$this->db = rcube_db::factory($dsn);
$this->db->set_debug((bool)$this->app->config->get('sql_debug'));
$this->db->db_connect('r'); // connect in read mode
}
else {
$this->db = $this->app->get_dbh();
}
}
return $this->db;
}
}
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