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