pguzman
663fde3909
Full source for loveandrosary.com: slide-based Rosary/novena/Divine Mercy Chaplet presentation tool with multi-user roles, SVG bead ring, audio uploads, donate strip, and public session profiles. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
208 lines
7.0 KiB
PHP
208 lines
7.0 KiB
PHP
<?php
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/**
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* includes/mailer.php — lightweight SMTP mailer using stream_socket_client().
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* Falls back to PHP mail() when smtp_host is not configured.
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*/
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/**
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* Send an email.
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*
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* @param string $to_email Recipient email address
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* @param string $to_name Recipient display name
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* @param string $subject Email subject
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* @param string $html HTML body
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* @param string $text Plain-text body (auto-generated from HTML if empty)
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* @return bool True on success, false on failure
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*/
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function send_email(string $to_email, string $to_name, string $subject, string $html, string $text = ''): bool {
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$smtp_host = get_setting('smtp_host');
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$smtp_port = (int) get_setting('smtp_port', '587');
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$smtp_user = get_setting('smtp_user');
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$smtp_pass = get_setting('smtp_pass');
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$smtp_from = get_setting('smtp_from');
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$smtp_from_name = get_setting('smtp_from_name', 'Rosary Presenter');
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if ($text === '') {
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$text = strip_tags(preg_replace('/<br\s*\/?>/i', "\n", $html));
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}
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// Fall back to PHP mail() if SMTP is not configured
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if ($smtp_host === '') {
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$headers = "MIME-Version: 1.0\r\n";
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$headers .= "Content-Type: text/html; charset=UTF-8\r\n";
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if ($smtp_from !== '') {
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$headers .= 'From: ' . _mail_encode_name($smtp_from_name) . ' <' . $smtp_from . ">\r\n";
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}
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return @mail($to_email, $subject, $html, $headers);
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}
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try {
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return _smtp_send($smtp_host, $smtp_port, $smtp_user, $smtp_pass, $smtp_from, $smtp_from_name, $to_email, $to_name, $subject, $html, $text);
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} catch (Throwable $e) {
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error_log('Mailer error: ' . $e->getMessage());
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return false;
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}
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}
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/**
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* Return a simple styled HTML email wrapper.
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*/
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function email_template(string $title, string $body_html): string {
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$site_name = get_setting('site_name', 'Rosary Presenter');
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return <<<HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width,initial-scale=1">
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<title>{$title}</title>
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</head>
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<body style="margin:0;padding:0;background:#f4f4f5;font-family:system-ui,-apple-system,sans-serif">
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<table width="100%" cellpadding="0" cellspacing="0" style="background:#f4f4f5;padding:40px 20px">
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<tr><td align="center">
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<table width="600" cellpadding="0" cellspacing="0" style="background:#ffffff;border-radius:8px;overflow:hidden;max-width:600px;width:100%">
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<tr>
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<td style="background:#1e3a5f;padding:24px 32px;text-align:center">
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<h1 style="margin:0;color:#ffffff;font-size:22px;font-weight:600">✝ {$site_name}</h1>
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</td>
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</tr>
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<tr>
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<td style="padding:32px">
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{$body_html}
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</td>
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</tr>
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<tr>
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<td style="background:#f4f4f5;padding:20px 32px;text-align:center;color:#6b7280;font-size:13px">
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© <?= date('Y') ?> {$site_name}. This email was sent automatically.
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</td>
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</tr>
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</table>
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</td></tr>
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</table>
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</body>
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</html>
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HTML;
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}
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// ---------------------------------------------------------------------------
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// Internal SMTP helpers
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// ---------------------------------------------------------------------------
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function _smtp_send(
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string $host, int $port,
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string $user, string $pass,
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string $from_addr, string $from_name,
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string $to_addr, string $to_name,
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string $subject, string $html, string $text
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): bool {
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$use_ssl = ($port === 465);
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$socket_addr = ($use_ssl ? 'ssl://' : 'tcp://') . $host . ':' . $port;
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$errno = 0;
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$errstr = '';
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$sock = stream_socket_client($socket_addr, $errno, $errstr, 15);
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if (!$sock) {
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throw new RuntimeException("SMTP connect failed ({$errno}): {$errstr}");
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}
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stream_set_timeout($sock, 15);
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_smtp_expect($sock, 220);
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_smtp_cmd($sock, 'EHLO ' . gethostname());
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$ehlo = _smtp_read_all($sock);
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// STARTTLS for port 587
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if (!$use_ssl && strpos($ehlo, 'STARTTLS') !== false) {
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_smtp_cmd($sock, 'STARTTLS');
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_smtp_expect($sock, 220);
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if (!stream_socket_enable_crypto($sock, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
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throw new RuntimeException('STARTTLS negotiation failed');
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}
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_smtp_cmd($sock, 'EHLO ' . gethostname());
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_smtp_read_all($sock);
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}
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// AUTH LOGIN
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if ($user !== '') {
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_smtp_cmd($sock, 'AUTH LOGIN');
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_smtp_expect($sock, 334);
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_smtp_cmd($sock, base64_encode($user));
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_smtp_expect($sock, 334);
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_smtp_cmd($sock, base64_encode($pass));
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_smtp_expect($sock, 235);
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}
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_smtp_cmd($sock, 'MAIL FROM:<' . $from_addr . '>');
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_smtp_expect($sock, 250);
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_smtp_cmd($sock, 'RCPT TO:<' . $to_addr . '>');
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_smtp_expect($sock, [250, 251]);
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_smtp_cmd($sock, 'DATA');
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_smtp_expect($sock, 354);
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$boundary = 'b_' . bin2hex(random_bytes(8));
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$date = date('r');
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$msg_id = bin2hex(random_bytes(12)) . '@' . gethostname();
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$headers = "Date: {$date}\r\n";
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$headers .= 'From: ' . _mail_encode_name($from_name) . ' <' . $from_addr . ">\r\n";
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$headers .= 'To: ' . _mail_encode_name($to_name) . ' <' . $to_addr . ">\r\n";
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$headers .= 'Subject: ' . _mail_encode_name($subject) . "\r\n";
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$headers .= "Message-ID: <{$msg_id}>\r\n";
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$headers .= "MIME-Version: 1.0\r\n";
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$headers .= "Content-Type: multipart/alternative; boundary=\"{$boundary}\"\r\n";
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$body = "--{$boundary}\r\n";
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$body .= "Content-Type: text/plain; charset=UTF-8\r\n";
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$body .= "Content-Transfer-Encoding: quoted-printable\r\n\r\n";
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$body .= quoted_printable_encode($text) . "\r\n";
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$body .= "--{$boundary}\r\n";
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$body .= "Content-Type: text/html; charset=UTF-8\r\n";
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$body .= "Content-Transfer-Encoding: quoted-printable\r\n\r\n";
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$body .= quoted_printable_encode($html) . "\r\n";
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$body .= "--{$boundary}--\r\n";
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// Dot-stuff the body
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$body = preg_replace('/^\.$/m', '..', $body);
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fwrite($sock, $headers . "\r\n" . $body . "\r\n.\r\n");
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_smtp_expect($sock, 250);
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_smtp_cmd($sock, 'QUIT');
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fclose($sock);
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return true;
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}
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function _smtp_cmd($sock, string $cmd): void {
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fwrite($sock, $cmd . "\r\n");
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}
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function _smtp_read_all($sock): string {
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$data = '';
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while (!feof($sock)) {
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$line = fgets($sock, 512);
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if ($line === false) break;
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$data .= $line;
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// Last line of multi-line response has a space after the code
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if (strlen($line) >= 4 && $line[3] === ' ') break;
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}
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return $data;
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}
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function _smtp_expect($sock, $codes): void {
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$response = _smtp_read_all($sock);
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$code = (int)substr(trim($response), 0, 3);
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$expected = (array)$codes;
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if (!in_array($code, $expected, true)) {
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throw new RuntimeException("SMTP unexpected response {$code}: " . trim($response));
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}
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}
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function _mail_encode_name(string $name): string {
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if ($name === '') return '';
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// RFC 2047 encode if needed
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if (preg_match('/[^\x20-\x7E]/', $name) || strpbrk($name, '"\\,;<>@') !== false) {
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return '=?UTF-8?B?' . base64_encode($name) . '?=';
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}
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return $name;
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}
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