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<?php
/**
* File based User-to-Email and Email-to-User lookup
*
* Add it to the plugins list in config.inc.php and set
* path to a virtuser table file to resolve user names and e-mail
* addresses
* $rcmail['virtuser_file'] = '';
*
* @version @package_version@
* @license GNU GPLv3+
* @author Aleksander Machniak
*/
class virtuser_file extends rcube_plugin
{
private $file;
private $app;
function init()
{
$this->app = rcmail::get_instance();
$this->file = $this->app->config->get('virtuser_file');
if ($this->file) {
$this->add_hook('user2email', array($this, 'user2email'));
$this->add_hook('email2user', array($this, 'email2user'));
}
}
/**
* User > Email
*/
function user2email($p)
{
$r = $this->findinvirtual('/\s' . preg_quote($p['user'], '/') . '\s*$/');
$result = array();
for ($i=0; $i<count($r); $i++) {
$arr = preg_split('/\s+/', $r[$i]);
if (count($arr) > 0 && strpos($arr[0], '@')) {
$result[] = rcube_utils::idn_to_ascii(trim(str_replace('\\@', '@', $arr[0])));
if ($p['first']) {
$p['email'] = $result[0];
break;
}
}
}
$p['email'] = empty($result) ? NULL : $result;
return $p;
}
/**
* Email > User
*/
function email2user($p)
{
$r = $this->findinvirtual('/^' . preg_quote($p['email'], '/') . '\s/');
for ($i=0; $i<count($r); $i++) {
$arr = preg_split('/\s+/', trim($r[$i]));
if (count($arr) > 0) {
$p['user'] = trim($arr[count($arr)-1]);
break;
}
}
return $p;
}
/**
* Find matches of the given pattern in virtuser file
*
* @param string Regular expression to search for
* @return array Matching entries
*/
private function findinvirtual($pattern)
{
$result = array();
$virtual = null;
if ($this->file)
$virtual = file($this->file);
if (empty($virtual))
return $result;
// check each line for matches
foreach ($virtual as $line) {
$line = trim($line);
if (empty($line) || $line[0]=='#')
continue;
if (preg_match($pattern, $line))
$result[] = $line;
}
return $result;
}
}
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