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<?php
// send.php
// Disable display errors to avoid corrupting JSON output (set to 1 if debugging)
ini_set('display_errors', 0);
error_reporting(E_ALL);
// Set UTF-8 headers
header('Content-Type: application/json; charset=utf-8');
// Include PHPMailer classes manually from root folder
$requiredFiles = ['Exception.php', 'PHPMailer.php', 'SMTP.php'];
foreach ($requiredFiles as $file) {
$path = __DIR__ . '/' . $file;
if (!file_exists($path)) {
echo json_encode(['success' => false, 'message' => "Required PHPMailer file missing: $file"]);
exit;
}
require_once $path;
}
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
// Error log function
function log_error($msg) {
$logFile = __DIR__ . '/error.txt';
file_put_contents($logFile, "[" . date('Y-m-d H:i:s') . "] " . $msg . "\n", FILE_APPEND);
}
// Shutdown function to catch fatal errors
register_shutdown_function(function () {
$error = error_get_last();
if ($error !== NULL) {
$msg = "Fatal error: {$error['message']} in {$error['file']} on line {$error['line']}";
log_error($msg);
}
});
// Read and sanitize POST inputs from JS (expecting fully processed content)
// Tag replacement is NOT done here anymore, all fields are final
$senderNameRaw = $_POST['senderName'] ?? '';
$senderEmailRaw = $_POST['senderEmail'] ?? '';
$replyToRaw = $_POST['replyTo'] ?? '';
$subjectRaw = $_POST['emailSubject'] ?? '';
$recipientListRaw = $_POST['recipientEmails'] ?? '';
$emailBodyRaw = $_POST['emailBody'] ?? '';
$useSmtp = ($_POST['useSmtp'] ?? '0') === '1';
$smtpSettingsRaw = $_POST['smtpSettings'] ?? null;
$useHtmlAttachment = ($_POST['useHtmlAttachment'] ?? '0') === '1';
$htmlAttachmentContent = $_POST['htmlAttachmentContent'] ?? '';
$htmlAttachmentName = $_POST['htmlAttachmentName'] ?? 'attachment';
$htmlAttachmentExt = $_POST['htmlAttachmentExt'] ?? 'html';
$emailFormat = $_POST['emailFormat'] ?? 'plain';
// Validate required fields individually and report which are missing
$missingFields = [];
if (!$senderNameRaw) {
$missingFields[] = 'senderName';
}
if (!$senderEmailRaw) {
$missingFields[] = 'senderEmail';
}
if (!$subjectRaw) {
$missingFields[] = 'emailSubject';
}
if (!$recipientListRaw) {
$missingFields[] = 'recipientEmails';
}
if (!$emailBodyRaw) {
$missingFields[] = 'emailBody';
}
if (!empty($missingFields)) {
$missingList = implode(', ', $missingFields);
echo json_encode([
'success' => false,
'message' => 'Missing required field(s): ' . $missingList
]);
exit;
}
// Convert inputs to UTF-8 - simplified like test script
$senderName = trim($senderNameRaw);
$senderEmail = trim($senderEmailRaw);
$replyTo = trim($replyToRaw);
$subject = trim($subjectRaw);
$emailBody = trim($emailBodyRaw);
// Parse recipient emails (array of already processed, valid emails from JS)
// But still validate on server side for safety
$recipients = preg_split('/[\s,;]+/', $recipientListRaw, -1, PREG_SPLIT_NO_EMPTY);
if (count($recipients) === 0) {
echo json_encode(['success' => false, 'message' => 'No valid recipient emails found.']);
exit;
}
// Load file attachment if exists
$attachmentPath = null;
$attachmentName = null;
if (!empty($_FILES['attachment']) && $_FILES['attachment']['error'] === UPLOAD_ERR_OK) {
$attachmentTmpPath = $_FILES['attachment']['tmp_name'];
$attachmentName = $_FILES['attachment']['name'];
$attachmentPath = $attachmentTmpPath;
}
// Decode SMTP settings JSON if used
$smtpSettings = [];
if ($useSmtp && $smtpSettingsRaw) {
$smtpSettings = json_decode($smtpSettingsRaw, true);
if (!is_array($smtpSettings)) {
log_error("Invalid SMTP settings JSON: " . $smtpSettingsRaw);
echo json_encode(['success' => false, 'message' => 'Invalid SMTP settings data.']);
exit;
}
// Log SMTP settings for debugging (remove passwords)
$debugSettings = $smtpSettings;
foreach ($debugSettings as &$setting) {
if (isset($setting['pass'])) {
$setting['pass'] = '[REDACTED]';
}
}
log_error("SMTP Settings loaded: " . json_encode($debugSettings));
}
// Initialize base PHPMailer object
$mail = new PHPMailer(true);
$mail->CharSet = 'UTF-8';
// Enable debug output for troubleshooting (comment out in production)
// $mail->SMTPDebug = 2;
// $mail->Debugoutput = function($str, $level) { log_error("PHPMailer Debug: $str"); };
try {
if ($useSmtp) {
// Use first SMTP config
$smtpConfig = $smtpSettings[0];
$mail->isSMTP();
$mail->Host = $smtpConfig['host'];
$mail->SMTPAuth = true;
$mail->Username = $smtpConfig['user'];
$mail->Password = $smtpConfig['pass'];
$mail->Port = (int)$smtpConfig['port'];
// Handle encryption properly like the test script
$encrypt = strtolower($smtpConfig['encrypt']);
if ($encrypt === 'ssl') {
$mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;
} elseif ($encrypt === 'tls') {
$mail->SMTPSecure = PHPMailer::ENCRYPTION_STARTTLS;
} else {
$mail->SMTPSecure = false;
$mail->SMTPAutoTLS = false;
}
// Set From address for SMTP (this was missing)
$mail->setFrom($senderEmail, $senderName);
} else {
// Use mail() function and set From
$mail->isMail();
$mail->setFrom($senderEmail, $senderName);
}
// Add Reply-To only if provided
if (!empty($replyTo)) {
$mail->addReplyTo($replyTo);
}
// Attach file if present
if ($attachmentPath) {
$mail->addAttachment($attachmentPath, $attachmentName);
}
// Attach HTML attachment if enabled
if ($useHtmlAttachment) {
$tmpHtmlFile = tempnam(sys_get_temp_dir(), 'htmlattach');
file_put_contents($tmpHtmlFile, $htmlAttachmentContent);
$attachmentFilename = $htmlAttachmentName;
if ($htmlAttachmentExt !== '') {
$attachmentFilename .= '.' . preg_replace('/[^a-z0-9]/i', '', $htmlAttachmentExt);
} else {
$attachmentFilename .= '.html';
}
$mail->addAttachment($tmpHtmlFile, $attachmentFilename);
}
$mail->isHTML($emailFormat === 'html');
$allSuccess = true;
$errors = [];
// Send email per recipient as-is (no tag replacement here)
foreach ($recipients as $recipient) {
$recipient = trim($recipient);
if (filter_var($recipient, FILTER_VALIDATE_EMAIL) === false) {
$errors[] = "Invalid email address: $recipient";
log_error("Invalid email address detected: $recipient");
$allSuccess = false;
continue;
}
// Clone mail object to isolate each recipient
$mailPerRecipient = clone $mail;
$mailPerRecipient->clearAddresses();
$mailPerRecipient->addAddress($recipient);
// Use subject and body directly without replacement
$mailPerRecipient->Subject = $subject;
if ($emailFormat === 'html') {
$mailPerRecipient->Body = $emailBody;
$mailPerRecipient->AltBody = strip_tags($emailBody);
} else {
$mailPerRecipient->Body = $emailBody;
$mailPerRecipient->AltBody = $emailBody;
}
if (!$mailPerRecipient->send()) {
$errMsg = "Failed to send to $recipient: " . $mailPerRecipient->ErrorInfo;
$errors[] = $errMsg;
log_error($errMsg);
$allSuccess = false;
} else {
log_error("Successfully sent email to: $recipient");
}
}
// Clean up temporary HTML attachment file if created
if ($useHtmlAttachment && isset($tmpHtmlFile) && file_exists($tmpHtmlFile)) {
unlink($tmpHtmlFile);
}
if ($allSuccess) {
echo json_encode(['success' => true, 'message' => 'All emails sent successfully.']);
} else {
echo json_encode(['success' => false, 'message' => 'Errors occurred.', 'errors' => $errors]);
}
} catch (Exception $e) {
$errorDetails = "Mailer Exception: " . $e->getMessage() . " in " . $e->getFile() . " on line " . $e->getLine();
log_error($errorDetails);
echo json_encode(['success' => false, 'message' => 'Mailer Exception occurred. Check error.txt for details.']);
}