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243
includes/Mailer.php
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243
includes/Mailer.php
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<?php
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class Mailer {
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private $db;
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private $smtpEnabled;
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private $smtpHost;
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private $smtpPort;
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private $smtpUsername;
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private $smtpPassword;
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private $smtpEncryption;
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private $fromEmail;
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private $fromName;
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public function __construct() {
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$this->db = Database::getInstance();
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$this->loadSettings();
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}
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private function loadSettings() {
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$this->smtpEnabled = $this->db->getSetting('smtp_enabled', '0') === '1';
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$this->smtpHost = $this->db->getSetting('smtp_host', '');
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$this->smtpPort = (int)$this->db->getSetting('smtp_port', '587');
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$this->smtpUsername = $this->db->getSetting('smtp_username', '');
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$this->smtpPassword = $this->db->getSetting('smtp_password', '');
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$this->smtpEncryption = $this->db->getSetting('smtp_encryption', 'tls');
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$this->fromEmail = $this->db->getSetting('smtp_from_email', 'noreply@' . $_SERVER['HTTP_HOST']);
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$this->fromName = $this->db->getSetting('smtp_from_name', $this->db->getSetting('app_title', 'UniFi Voucher System'));
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}
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public function send($to, $subject, $body, $isHtml = false) {
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if (!$this->smtpEnabled || empty($this->smtpHost)) {
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// Fallback auf PHP mail()
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return $this->sendWithPhpMail($to, $subject, $body);
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}
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return $this->sendWithSmtp($to, $subject, $body, $isHtml);
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}
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private function sendWithPhpMail($to, $subject, $body) {
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$headers = "From: {$this->fromName} <{$this->fromEmail}>\r\n";
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$headers .= "Reply-To: {$this->fromEmail}\r\n";
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$headers .= "Content-Type: text/plain; charset=UTF-8\r\n";
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return mail($to, $subject, $body, $headers);
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}
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private function sendWithSmtp($to, $subject, $body, $isHtml = false) {
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try {
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// Verbindung aufbauen
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$socket = $this->connectToSmtp();
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// EHLO
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$this->smtpCommand($socket, "EHLO " . $_SERVER['HTTP_HOST']);
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// STARTTLS wenn nötig
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if ($this->smtpEncryption === 'tls') {
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$this->smtpCommand($socket, "STARTTLS");
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stream_socket_enable_crypto($socket, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
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$this->smtpCommand($socket, "EHLO " . $_SERVER['HTTP_HOST']);
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}
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// AUTH LOGIN
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$this->smtpCommand($socket, "AUTH LOGIN");
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$this->smtpCommand($socket, base64_encode($this->smtpUsername));
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$this->smtpCommand($socket, base64_encode($this->smtpPassword));
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// MAIL FROM
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$this->smtpCommand($socket, "MAIL FROM:<{$this->fromEmail}>");
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// RCPT TO
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$this->smtpCommand($socket, "RCPT TO:<{$to}>");
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// DATA
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$this->smtpCommand($socket, "DATA");
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// Headers
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$message = "From: {$this->fromName} <{$this->fromEmail}>\r\n";
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$message .= "To: {$to}\r\n";
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$message .= "Subject: =?UTF-8?B?" . base64_encode($subject) . "?=\r\n";
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$message .= "MIME-Version: 1.0\r\n";
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if ($isHtml) {
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$message .= "Content-Type: text/html; charset=UTF-8\r\n";
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} else {
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$message .= "Content-Type: text/plain; charset=UTF-8\r\n";
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}
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$message .= "\r\n";
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// Body - bei Plain Text Zeilenumbrüche konvertieren
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if (!$isHtml) {
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$body = nl2br($body, false); // Für Plain Text
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$body = str_replace('<br>', "\r\n", $body);
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}
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$message .= $body;
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$message .= "\r\n.\r\n";
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fwrite($socket, $message);
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$response = fgets($socket);
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// QUIT
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$this->smtpCommand($socket, "QUIT");
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fclose($socket);
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return strpos($response, '250') === 0;
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} catch (Exception $e) {
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error_log("SMTP Error: " . $e->getMessage());
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return false;
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}
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}
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private function connectToSmtp() {
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$context = stream_context_create([
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'ssl' => [
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'verify_peer' => false,
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'verify_peer_name' => false,
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'allow_self_signed' => true
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]
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]);
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if ($this->smtpEncryption === 'ssl') {
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$host = 'ssl://' . $this->smtpHost;
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} else {
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$host = $this->smtpHost;
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}
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$socket = stream_socket_client(
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$host . ':' . $this->smtpPort,
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$errno,
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$errstr,
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30,
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STREAM_CLIENT_CONNECT,
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$context
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);
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if (!$socket) {
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throw new Exception("SMTP Connection failed: $errstr ($errno)");
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}
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// Willkommensnachricht lesen
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fgets($socket);
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return $socket;
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}
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private function smtpCommand($socket, $command) {
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fwrite($socket, $command . "\r\n");
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$response = fgets($socket);
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// Prüfen auf Fehler (4xx oder 5xx)
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if (preg_match('/^[45]/', $response)) {
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throw new Exception("SMTP Error: $response");
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}
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return $response;
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}
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// Vordefinierte E-Mail-Templates
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public function sendVoucherEmail($to, $voucherCode, $siteName, $maxUses) {
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$appTitle = $this->db->getSetting('app_title', 'UniFi Voucher System');
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$instructionHeader = $this->db->getSetting('instruction_header', '');
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$instructionText = $this->db->getSetting('instruction_text', '');
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// System-URL aus Einstellungen oder automatisch erkennen
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$systemUrl = $this->db->getSetting('system_url', '');
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if (empty($systemUrl)) {
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$protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http';
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$host = $_SERVER['HTTP_HOST'];
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$scriptPath = dirname($_SERVER['SCRIPT_NAME']);
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$scriptPath = $scriptPath === '/' ? '' : $scriptPath;
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$systemUrl = $protocol . '://' . $host . $scriptPath;
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}
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// Template aus Datenbank laden
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$subjectTemplate = $this->db->getSetting('email_voucher_subject', '{APP_TITLE} - Ihr WLAN-Zugang');
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$bodyTemplate = $this->db->getSetting('email_voucher_body', "Hallo,\n\nIhr WLAN-Zugangscode lautet:\n\n<strong>{VOUCHER_CODE}</strong>\n\nGültigkeit: 8 Stunden ab Erstellung\nMaximale Geräte: {MAX_USES}\nStandort: {SITE_NAME}\n\n{INSTRUCTIONS}\n\nMit freundlichen Grüßen\n{APP_TITLE}");
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// Anleitung formatieren
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$instructions = '';
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if ($instructionText) {
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$instructions = $instructionHeader . "\n" . $instructionText;
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}
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// Platzhalter ersetzen
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$placeholders = [
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'{VOUCHER_CODE}' => $voucherCode,
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'{SITE_NAME}' => $siteName,
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'{MAX_USES}' => $maxUses,
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'{APP_TITLE}' => $appTitle,
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'{INSTRUCTIONS}' => $instructions,
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'{SYSTEM_URL}' => $systemUrl
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];
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$subject = str_replace(array_keys($placeholders), array_values($placeholders), $subjectTemplate);
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$body = str_replace(array_keys($placeholders), array_values($placeholders), $bodyTemplate);
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// HTML oder Plain Text prüfen
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$isHtml = strip_tags($body) !== $body;
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return $this->send($to, $subject, $body, $isHtml);
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}
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public function sendUserNotification($to, $userName, $changes) {
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$appTitle = $this->db->getSetting('app_title', 'UniFi Voucher System');
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// System-URL aus Einstellungen oder automatisch erkennen
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$systemUrl = $this->db->getSetting('system_url', '');
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if (empty($systemUrl)) {
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$protocol = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] === 'on' ? 'https' : 'http';
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$host = $_SERVER['HTTP_HOST'];
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$scriptPath = dirname($_SERVER['SCRIPT_NAME']);
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$scriptPath = $scriptPath === '/' ? '' : $scriptPath;
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$systemUrl = $protocol . '://' . $host . $scriptPath;
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}
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// Template aus Datenbank laden
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$subjectTemplate = $this->db->getSetting('email_user_notification_subject', '{APP_TITLE} - Ihre Berechtigungen wurden geändert');
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$bodyTemplate = $this->db->getSetting('email_user_notification_body', "Hallo {USER_NAME},\n\nEin Administrator hat Ihre Berechtigungen im {APP_TITLE} geändert:\n\n{CHANGES}\n\nSie können sich unter folgender Adresse anmelden:\n{SYSTEM_URL}\n\nMit freundlichen Grüßen\n{APP_TITLE}");
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// Änderungen formatieren
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$changesText = '';
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foreach ($changes as $change) {
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$changesText .= "• $change\n";
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}
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// Platzhalter ersetzen
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$placeholders = [
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'{USER_NAME}' => $userName,
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'{CHANGES}' => $changesText,
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'{APP_TITLE}' => $appTitle,
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'{SYSTEM_URL}' => $systemUrl
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];
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$subject = str_replace(array_keys($placeholders), array_values($placeholders), $subjectTemplate);
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$body = str_replace(array_keys($placeholders), array_values($placeholders), $bodyTemplate);
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// HTML oder Plain Text prüfen
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$isHtml = strip_tags($body) !== $body;
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return $this->send($to, $subject, $body, $isHtml);
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}
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}
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