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3 Commits

Author SHA1 Message Date
Nik 44dd2435ec Add dynamic selection of the TLS/SSL encryption method 2020-10-12 22:53:54 +02:00
Nik 95b822f000 Use TLS instead of SSL authentication in IMAP connection 2020-07-05 22:11:00 +02:00
Nik f54e5e65c9 Add Feature IMAP authentication
### Added

- Add IMAP Authentication Plugin which stores the IMAP server to a DB field and handles the registration and authentication of IMAP users.

### Changed

- Add extra plugin hooks `beforeVerifyUser` & `afterVerifyUser` in `60.plugins.php`.
- Change the `login.class.php` by calling the `beforeVerifyUser` & `afterVerifyUser` hooks in order to support more authentication methods.
2020-06-24 00:49:11 +02:00
6 changed files with 198 additions and 2 deletions

View File

@ -37,6 +37,9 @@ $plugins = array(
'loginBodyBegin'=>array(),
'loginBodyEnd'=>array(),
'beforeVerifyUser'=>array(),
'afterVerifyUser'=>array(),
'all'=>array()
);

View File

@ -104,6 +104,13 @@ class Login {
return false;
}
try {
Theme::plugins('beforeVerifyUser');
} catch (Exception $e) {
Log::set($e->getFile().LOG_SEP.$e->getLine().LOG_SEP.$e->getMessage());
return false;
}
try {
$user = new User($username);
} catch (Exception $e) {
@ -117,6 +124,16 @@ class Login {
return true;
}
try {
Theme::plugins('afterVerifyUser');
} catch (Exception $e) {
Log::set($e->getFile().LOG_SEP.$e->getLine().LOG_SEP.$e->getMessage());
return false;
}
if ($this->isLogged()) {
return true;
}
Log::set(__METHOD__.LOG_SEP.'Password incorrect.');
return false;
}

View File

@ -0,0 +1,9 @@
{
"plugin-data":
{
"name": "IMAP-Authentifizierung",
"description": "Dieses Plugin ermöglicht die Authentifizierung von Benutzern mit Hilfe eines IMAP-Servers.",
"imap-server": "IMAP Server",
"encryption": "Verschlüsselung"
}
}

View File

@ -0,0 +1,9 @@
{
"plugin-data":
{
"name": "IMAP Authentication",
"description": "This plugin enables the authentication of users, using an IMAP server.",
"imap-server": "IMAP Server",
"encryption": "Encryption"
}
}

View File

@ -0,0 +1,10 @@
{
"author": "LeineLab",
"email": "",
"website": "https://leinelab.org",
"version": "0.1.0",
"releaseDate": "2020-06-15",
"license": "MIT",
"compatible": "3.12.0",
"notes": ""
}

View File

@ -0,0 +1,148 @@
<?php
class pluginImapAuthentication extends Plugin {
const IMAP_SERVER_DB_FIELD = 'imapServer';
const IMAP_ENCRYPTION_DB_FIELD = 'imapEncryption';
public function init()
{
$this->dbFields = array(
self::IMAP_SERVER_DB_FIELD=>'',
self::IMAP_ENCRYPTION_DB_FIELD=>'ssl',
);
}
public function form()
{
global $L;
$html = '<div class="alert alert-primary" role="alert">';
$html .= $this->description();
$html .= '</div>';
$html .= '<div>';
$html .= '<label>'.$L->get('IMAP Server').'</label>';
$html .= '<input name="imapServer" id="imapServer" type="text" value="'.$this->getValue(self::IMAP_SERVER_DB_FIELD).'">';
$html .= '</div>';
$html .= '<div>';
$html .= '<label>'.$L->get('Encryption').'</label>';
$html .= '<select name="imapEncryption" id="imapEncryption">';
$html .= '<option value="ssl" '.('ssl' === $this->getValue(self::IMAP_ENCRYPTION_DB_FIELD) ? 'selected' : ''). '>SSL</option>';
$html .= '<option value="tls" '.('tls' === $this->getValue(self::IMAP_ENCRYPTION_DB_FIELD) ? 'selected' : ''). '>TLS</option>';
$html .= '</select>';
$html .= '</div>';
return $html;
}
/**
* Before validating user, check if exists.
* If not and the user name is an email
* and has an IMAP account create one.
* @throws Exception
*/
public function beforeVerifyUser()
{
$username = $_POST['username'];
$password = $_POST['password'];
if (false === filter_var($username, FILTER_VALIDATE_EMAIL)) {
return;
}
try {
new User($username);
} catch (Exception $e) {
$this->createUser($username, $password);
}
}
/**
* Validate user using IMAP
* @throws Exception
*/
public function afterVerifyUser()
{
$username = $_POST['username'];
$password = $_POST['password'];
if (!$this->authenticateUser($this->getValue(self::IMAP_SERVER_DB_FIELD), $this->getValue(self::IMAP_ENCRYPTION_DB_FIELD), $username, $password)) {
return;
}
$user = new User($username);
$loginClass = new login();
$loginClass->setLogin($username, $user->role());
Log::set(__METHOD__.LOG_SEP.'Successful user login using IMAP - Username ['.$username.']');
}
/**
* @param $mailbox
* @param $encryption
* @param $username User's mail address
* @param $password
* @return bool
*/
private function authenticateUser($mailbox, $encryption, $username, $password)
{
if (!function_exists('imap_open')) {
Log::set(__METHOD__.LOG_SEP.'ERROR: PHP imap extension is not installed');
}
// Replace escaped @ symbol in uid (which is a mail address)
// but only if there is no @ symbol and if there is a %40 inside the uid
if (!(strpos($username, '@') !== false) && (strpos($username, '%40') !== false)) {
$username = str_replace("%40","@",$username);
}
$imapConnection = @imap_open("{{$mailbox}/imap/{$encryption}}INBOX", $username, $password, OP_HALFOPEN, 1);
$imapErrors = imap_errors();
$imapAlerts = imap_alerts();
if (!empty($imapErrors)) {
Log::set(__METHOD__.LOG_SEP."IMAP Error:\n".print_r($imapErrors, true));
}
if (!empty($imapAlerts)) {
Log::set(__METHOD__.LOG_SEP."WARNING: IMAP Warning:\n".print_r($imapAlerts, true));
}
if($imapConnection !== false) {
imap_close($imapConnection);
return true;
}
return false;
}
/**
* @param $username User's mail address
* @param $password
* @throws Exception
*/
private function createUser($username, $password)
{
global $users;
if (!$this->authenticateUser($this->getValue(self::IMAP_SERVER_DB_FIELD), $this->getValue(self::IMAP_ENCRYPTION_DB_FIELD), $username, $password)) {
return;
}
$usersClass = new Users();
$usersClass->add(array(
'username' => $username,
'password' => '',
'email' => $username,
'nickname' => explode('@', $username)[0]
));
$users = new Users();
$user = new User($username);
$loginClass = new Login();
$loginClass->setLogin($username, $user->role());
Log::set(__METHOD__.LOG_SEP.'Successful user creation using IMAP - Username ['.$username.']');
}
}