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main.php
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<?php
/*
Plugin Name: Zulu eDM WP SMTP Email Plugin
Version: 1.1.3
Plugin URI: https://github.com/zululabsshaka/zulu-edm-smtp-email-relay
Author: zululabs
Author URI: http://github.com/zululabsshaka/
Description: Use this SMTP relay plugin to send emails using the Zulu eDM Trusted Sender Network email service. This service is a scalable and robust
email delivery network that ensures all email traffic meets stringent email protocols.
*/
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
if (!defined('ABSPATH')){
exit;
}
class ZULU_EDM_SMTP_MAILER {
var $plugin_version = '1.1.3';
var $phpmailer_version = '6.0.5';
var $plugin_url;
var $plugin_path;
function __construct() {
define('ZULU_EDM_SMTP_MAILER_VERSION', $this->plugin_version);
define('ZULU_EDM_SMTP_MAILER_SITE_URL', site_url());
define('ZULU_EDM_SMTP_MAILER_HOME_URL', home_url());
define('ZULU_EDM_SMTP_MAILER_URL', $this->plugin_url());
define('ZULU_EDM_SMTP_MAILER_PATH', $this->plugin_path());
//$this->plugin_includes();
$this->loader_operations();
}
function loader_operations() {
if (is_admin()) {
add_filter('plugin_action_links', array($this, 'add_plugin_action_links'), 10, 2);
}
add_action('plugins_loaded', array($this, 'plugins_loaded_handler'));
add_action('admin_menu', array($this, 'options_menu'));
add_action('admin_notices', 'zulu_edm_smtp_mailer_admin_notice');
}
function plugins_loaded_handler()
{
load_plugin_textdomain('zulu-edm-smtp-mailer', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/');
}
function plugin_url() {
if ($this->plugin_url)
return $this->plugin_url;
return $this->plugin_url = plugins_url(basename(plugin_dir_path(__FILE__)), basename(__FILE__));
}
function plugin_path() {
if ($this->plugin_path)
return $this->plugin_path;
return $this->plugin_path = untrailingslashit(plugin_dir_path(__FILE__));
}
function add_plugin_action_links($links, $file) {
if ($file == plugin_basename(dirname(__FILE__) . '/main.php')) {
$links[] = '<a href="options-general.php?page=zulu-edm-smtp-mailer-settings">'.__('Settings', 'zulu-edm-smtp-mailer').'</a>';
}
return $links;
}
function options_menu() {
add_options_page(__('Zulu eDM SMTP Gateway', 'zulu-edm-smtp-mailer'), __('Zulu eDM SMTP Gateway', 'zulu-edm-smtp-mailer'), 'manage_options', 'zulu-edm-smtp-mailer-settings', array($this, 'options_page'));
}
function options_page() {
$plugin_tabs = array(
'zulu-edm-smtp-mailer-settings' => __('Zulu SMTP Account', 'zulu-edm-smtp-mailer'),
'zulu-edm-smtp-mailer-settings&action=test-email' => __('Email Test', 'zulu-edm-smtp-mailer'),
'zulu-edm-smtp-mailer-settings&action=server-info' => __('Server Info', 'zulu-edm-smtp-mailer'),
'zulu-edm-smtp-mailer-settings&action=smtp-tools' => __('Reputation Tools', 'zulu-edm-smtp-mailer'),
'zulu-edm-smtp-mailer-settings&action=credits' => __('Credits', 'zulu-edm-smtp-mailer'),
);
$url = "https://support.zululabs.com/index.php?/Knowledgebase/Article/View/wordpress-plugin-zulu-edm-wp-smtp-email-plugin/";
$link_text = sprintf(wp_kses(__('Please visit the <a target="_blank" href="%s">Zulu eDM WP SMTP Gateway</a> support page for instructions.', 'zulu-edm-smtp-mailer'), array('a' => array('href' => array(), 'target' => array()))), esc_url($url));
echo '<div class="wrap"><h2>Zulu eDM SMTP Gateway v ' . ZULU_EDM_SMTP_MAILER_VERSION . '</h2>';
echo '<div class="update-nag">'.$link_text.'</div>';
if (isset($_GET['page'])) {
$current = $_GET['page'];
if (isset($_GET['action'])) {
$current .= "&action=" . $_GET['action'];
}
}
$content = '';
$content .= '<h2 class="nav-tab-wrapper">';
foreach ($plugin_tabs as $location => $tabname) {
if ($current == $location) {
$class = ' nav-tab-active';
} else {
$class = '';
}
$content .= '<a class="nav-tab' . $class . '" href="?page=' . $location . '">' . $tabname . '</a>';
}
$content .= '</h2>';
echo $content;
if(isset($_GET['action']) && $_GET['action'] == 'test-email'){
$this->test_email_settings();
}
else if(isset($_GET['action']) && $_GET['action'] == 'server-info'){
$this->server_info_settings();
}
else if(isset($_GET['action']) && $_GET['action'] == 'smtp-tools'){
$this->emailTools();
}
else if(isset($_GET['action']) && $_GET['action'] == 'credits'){
$this->credits();
}
else{
$this->general_settings();
}
echo '</div>';
}
function test_email_settings(){
if(isset($_POST['zulu_edm_smtp_mailer_send_test_email'])){
$to = '';
if(isset($_POST['zulu_edm_smtp_mailer_to_email']) && !empty($_POST['zulu_edm_smtp_mailer_to_email'])){
$to = sanitize_text_field($_POST['zulu_edm_smtp_mailer_to_email']);
}
$subject = '';
if(isset($_POST['zulu_edm_smtp_mailer_email_subject']) && !empty($_POST['zulu_edm_smtp_mailer_email_subject'])){
$subject = sanitize_text_field($_POST['zulu_edm_smtp_mailer_email_subject']);
}
$message = '';
if(isset($_POST['zulu_edm_smtp_mailer_email_body']) && !empty($_POST['zulu_edm_smtp_mailer_email_body'])){
$message = sanitize_text_field($_POST['zulu_edm_smtp_mailer_email_body']);
}
wp_mail($to, $subject, $message);
}
?>
<form method="post" action="<?php echo $_SERVER["REQUEST_URI"]; ?>">
<?php wp_nonce_field('zulu_edm_smtp_mailer_test_email'); ?>
<table class="form-table">
<tbody>
<tr valign="top">
<th class="" scope="row"><label for="zulu_edm_smtp_mailer_to_email"><?php _e('To', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="zulu_edm_smtp_mailer_to_email" type="text" id="zulu_edm_smtp_mailer_to_email" value="" class="regular-text">
<p class="description"><?php _e('Recipient email ', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="zulu_edm_smtp_mailer_email_subject"><?php _e('Subject', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="zulu_edm_smtp_mailer_email_subject" type="hidden" id="zulu_edm_smtp_mailer_email_subject" value="Test: Zulu eDM SMTP" class="regular-text">
<p class="description"><?php _e('Test: Zulu eDM SMTP', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="zulu_edm_smtp_mailer_email_body"><?php _e('Message', 'zulu-edm-smtp-mailer');?></label></th>
<td><input type="hidden" name="zulu_edm_smtp_mailer_email_body" id="zulu_edm_smtp_mailer_email_body" value="This Test email was sent from your WordPress Site.... Shaka">
<p class="description"><?php _e('This Test email was sent from your WordPress Site.... Shaka', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
</tbody>
</table>
<p class="submit"><input type="submit" name="zulu_edm_smtp_mailer_send_test_email" id="zulu_edm_smtp_mailer_send_test_email" class="button button-primary" value="<?php _e('Test Email Settings', 'zulu-edm-smtp-mailer');?>"></p>
</form>
<?php
}
function server_info_settings()
{
$server_info = '';
$server_info .= sprintf('OS: %s%s', php_uname(), PHP_EOL);
$server_info .= sprintf('PHP version: %s%s', PHP_VERSION, PHP_EOL);
$server_info .= sprintf('WordPress version: %s%s', get_bloginfo('version'), PHP_EOL);
$server_info .= sprintf('WordPress multisite: %s%s', (is_multisite() ? 'Yes' : 'No'), PHP_EOL);
$openssl_status = 'Available';
$openssl_text = '';
if(!extension_loaded('openssl') && !defined('OPENSSL_ALGO_SHA1')){
$openssl_status = 'Not available';
$openssl_text = ' (openssl extension is required in order to use any kind of encryption like TLS or SSL)';
}
$server_info .= sprintf('openssl: %s%s%s', $openssl_status, $openssl_text, PHP_EOL);
$server_info .= sprintf('allow_url_fopen: %s%s', (ini_get('allow_url_fopen') ? 'Enabled' : 'Disabled'), PHP_EOL);
$stream_socket_client_status = 'Not Available';
$fsockopen_status = 'Not Available';
$socket_enabled = false;
if(function_exists('stream_socket_client')){
$stream_socket_client_status = 'Available';
$socket_enabled = true;
}
if(function_exists('fsockopen')){
$fsockopen_status = 'Available';
$socket_enabled = true;
}
$socket_text = '';
if(!$socket_enabled){
$socket_text = ' (In order to make a SMTP connection your server needs to have either stream_socket_client or fsockopen)';
}
$server_info .= sprintf('stream_socket_client: %s%s', $stream_socket_client_status, PHP_EOL);
$server_info .= sprintf('fsockopen: %s%s%s', $fsockopen_status, $socket_text, PHP_EOL);
?>
<textarea rows="10" cols="50" class="large-text code"><?php echo $server_info;?></textarea>
<?php
}
function emailTools()
{
$email_tools = '<div class="large-text code"><h3>Email Reputation Tools</h3><p>Free tools to configure email domains for reputation management and cyber email security.</p>';
$email_tools = $email_tools . '<ul><li><a href="http://trustedsenderscore.com" target="_blank">Domain Trust Score</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/trusted-sender/1.0/" target="_blank">Email DNS Check</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/free/dkim-wizard/doman-key-generator" target="_blank">DKIM Wizard</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/trusted-sender/1.0/free-email-developer-tools.php" target="_blank">Encoding Tools</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/meaningful-google-analytics/edm-utm-link-tracking.php" target="_blank">Link Tracking Builder</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/meaningful-google-analytics/" target="_blank">Imporve Website & Email Conversion Reports with our Google Analytics Enhancement</a></li>';
$email_tools = $email_tools . '<li><a href="https://zuluedm.com/trusted-sender/1.0/free-ssl-check.php" target="_blank">SSL Check</a></li></ul></div>';
echo $email_tools;
}
function credits()
{
$credits = '<div class="large-text code"><h3>Legal Notices</h3><p>This plugin is governed by the Zulu eDM Legal Notices listed below. Also listed are third party source code credits used';
$credits = $credits . 'to produce this free plugin. Each piece of open source used is covered by their own agreements.</p>';
$credits = $credits . '<ul><li><a href="https://zuluedm.com/legal-notices" target="_blank">Legal Notices</a></li>';
$credits = $credits . '<li><a href="https://zuluedm.com/ip-addresses-sms-numbers/" target="_blank">IP Addresses</a></li>';
$credits = $credits . '<li><a href="https://blacklists.zuluedm.com/" target="_blank">Our IP Addresses Health</a></li>';
$credits = $credits . '<li><a href="https://support.zululabs.com" target="_blank">Zulu Support</a></li>';
$credits = $credits . '<li><a href="https://github.com/PHPMailer/PHPMailer" target="_blank">Credit: PHPMailer</a></li>';
$credits = $credits . '<li><a href="https://github.com/nategood/httpful" target="_blank">Credit: HTTPful</a></li></ul></div>';
echo $credits;
}
function general_settings() {
if (isset($_POST['zulu_edm_smtp_mailer_update_settings'])) {
$nonce = $_REQUEST['_wpnonce'];
if (!wp_verify_nonce($nonce, 'zulu_edm_smtp_mailer_general_settings')) {
wp_die('Error! Nonce Security Check Failed! please save the settings again.');
}
$smtp_host = 'pmta.zululabs.com';
if(isset($_POST['smtp_host']) && !empty($_POST['smtp_host'])){
$smtp_host = sanitize_text_field($_POST['smtp_host']);
}
$smtp_auth = 'true';
if(isset($_POST['smtp_auth']) && !empty($_POST['smtp_auth'])){
$smtp_auth = sanitize_text_field($_POST['smtp_auth']);
}
$smtp_username = '';
if(isset($_POST['smtp_username']) && !empty($_POST['smtp_username'])){
$smtp_username = sanitize_text_field($_POST['smtp_username']);
}
$smtp_password = '';
if(isset($_POST['smtp_password']) && !empty($_POST['smtp_password'])){
//echo "password: ".$_POST['smtp_password'];
$smtp_password = sanitize_text_field($_POST['smtp_password']);
$smtp_password = wp_unslash($smtp_password); // This removes slash (automatically added by WordPress) from the password when apostrophe is present
$smtp_password = base64_encode($smtp_password);
}
$type_of_encryption = 'PLAIN';
if(isset($_POST['type_of_encryption']) && !empty($_POST['type_of_encryption'])){
$type_of_encryption = sanitize_text_field($_POST['type_of_encryption']);
}
$smtp_port = '25';
if(isset($_POST['smtp_port']) && !empty($_POST['smtp_port'])){
$smtp_port = sanitize_text_field($_POST['smtp_port']);
}
$from_email = '';
if(isset($_POST['from_email']) && !empty($_POST['from_email'])){
$from_email = sanitize_email($_POST['from_email']);
}
$from_name = '';
if(isset($_POST['from_name']) && !empty($_POST['from_name'])){
$from_name = sanitize_text_field(stripslashes($_POST['from_name']));
}
$disable_ssl_verification = '';
if(isset($_POST['disable_ssl_verification']) && !empty($_POST['disable_ssl_verification'])){
$disable_ssl_verification = sanitize_text_field($_POST['disable_ssl_verification']);
}
$options = array();
$options['smtp_host'] = $smtp_host;
$options['smtp_auth'] = $smtp_auth;
$options['smtp_username'] = $smtp_username;
$options['smtp_password'] = $smtp_password;
$options['type_of_encryption'] = $type_of_encryption;
$options['smtp_port'] = $smtp_port;
$options['from_email'] = $from_email;
$options['from_name'] = $from_name;
$options['disable_ssl_verification'] = $disable_ssl_verification;
zulu_edm_smtp_mailer_update_option($options);
echo '<div id="message" class="updated fade"><p><strong>';
echo __('Settings Saved!', 'zulu-edm-smtp-mailer');
echo '</strong></p></div>';
}
$options = zulu_edm_smtp_mailer_get_option();
if(!is_array($options)){
$options = array();
$options['smtp_host'] = 'pmta.zululabs.com';
$options['smtp_auth'] = 'true';
$options['smtp_username'] = '';
$options['smtp_password'] = '';
$options['type_of_encryption'] = 'PLAIN';
$options['smtp_port'] = '25';
$options['from_email'] = '';
$options['from_name'] = '';
$options['disable_ssl_verification'] = 'true';
}
// Avoid warning notice since this option was added later
if(!isset($options['disable_ssl_verification'])){
$options['disable_ssl_verification'] = 'true';
}
$smtp_password = '';
if(isset($options['smtp_password']) && !empty($options['smtp_password'])){
$smtp_password = base64_decode($options['smtp_password']);
}
?>
<form method="post" action="<?php echo $_SERVER["REQUEST_URI"]; ?>">
<?php wp_nonce_field('zulu_edm_smtp_mailer_general_settings'); ?>
<table class="form-table">
<tbody>
<tr valign="top">
<th scope="row"><label for="smtp_host"><?php _e('SMTP Host', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="smtp_host" id="smtp_host" value="<?php echo $options['smtp_host']; ?>" class="regular-text" disabled>
<p class="description"><?php _e('The SMTP server which will be used to send email.', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr>
<th scope="row"><label for="smtp_auth"><?php _e('Zulu eDM Trusted Sender Authentication', 'zulu-edm-smtp-mailer');?></label></th>
<td>
<input name="smtp_auth" id="smtp_auth" value="true" class="regular-text code" disabled>
<p class="description"><?php _e('<a target="_blank" href="https://zuluedm.com/trusted-sender/1.0/zuluedmsettings.php?utm_source=Zulu%20eDM&utm_medium=WPPlugin&utm_campaign=Trusted%20Sender">Visit Zulu eDM Trusted Sender</a>
To Register.', 'zulu-edm-smtp-mailer');?></p>
</td>
</tr>
<tr valign="top">
<th scope="row"><label for="smtp_username"><?php _e('Zulu eDM SMTP Username', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="smtp_username" type="text" id="smtp_username" value="<?php echo $options['smtp_username']; ?>" class="regular-text code">
<p class="description"><?php _e('Your SMTP Username.', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="smtp_password"><?php _e('Zulu eDM SMTP Password', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="smtp_password" type="password" id="smtp_password" value="<?php echo $smtp_password; ?>" class="regular-text code">
<p class="description"><?php _e('Your SMTP Password.', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="smtp_port"><?php _e('SMTP Port', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="smtp_port" id="smtp_port" value="25" class="regular-text code" disabled>
<p class="description"><?php _e('The port which will be used when sending an email (587/465/25).', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="from_email"><?php _e('From Email Address', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="from_email" type="text" id="from_email" value="<?php echo $options['from_email']; ?>" class="regular-text code">
<p class="description"><?php _e('An email address that is using the domain that is approved with Zulu eDM and your DMARC record.', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="from_name"><?php _e('From Name', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="from_name" type="text" id="from_name" value="<?php echo $options['from_name']; ?>" class="regular-text code">
<p class="description"><?php _e('The name which will be used as the From Name if it is not supplied to the mail function.', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
<tr valign="top">
<th scope="row"><label for="disable_ssl_verification"><?php _e('Disable SSL Certificate Verification', 'zulu-edm-smtp-mailer');?></label></th>
<td><input name="disable_ssl_verification" id="disable_ssl_verification" value="true" disabled>
<p class="description"><?php _e('If your webserver has TLS support we will automatically encrypt the email', 'zulu-edm-smtp-mailer');?></p></td>
</tr>
</tbody>
</table>
<p class="submit"><input type="submit" name="zulu_edm_smtp_mailer_update_settings" id="zulu_edm_smtp_mailer_update_settings" class="button button-primary" value="<?php _e('Save Changes', 'zulu-edm-smtp-mailer')?>"></p>
</form>
<?php
}
}
function zulu_edm_smtp_mailer_get_option(){
$options = get_option('zulu_edm_smtp_mailer_options');
return $options;
}
function zulu_edm_smtp_mailer_update_option($options){
update_option('zulu_edm_smtp_mailer_options', $options);
}
function zulu_edm_smtp_mailer_admin_notice() {
if(!is_zulu_edm_smtp_mailer_configured()){
?>
<div class="error">
<p><?php _e('Zulu eDM SMTP Gateway plugin cannot send email until you enter your credentials in the settings.', 'zulu-edm-smtp-mailer'); ?></p>
</div>
<?php
}
}
function is_zulu_edm_smtp_mailer_configured() {
$options = zulu_edm_smtp_mailer_get_option();
$smtp_configured = true;
if(!isset($options['smtp_host']) || empty($options['smtp_host'])){
$smtp_configured = false;
}
if(!isset($options['smtp_auth']) || empty($options['smtp_auth'])){
$smtp_configured = false;
}
if(isset($options['smtp_auth']) && $options['smtp_auth'] == "true"){
if(!isset($options['smtp_username']) || empty($options['smtp_username'])){
$smtp_configured = false;
}
if(!isset($options['smtp_password']) || empty($options['smtp_password'])){
$smtp_configured = false;
}
}
if(!isset($options['type_of_encryption']) || empty($options['type_of_encryption'])){
$smtp_configured = false;
}
if(!isset($options['smtp_port']) || empty($options['smtp_port'])){
$smtp_configured = false;
}
if(!isset($options['from_email']) || empty($options['from_email'])){
$smtp_configured = false;
}
if(!isset($options['from_name']) || empty($options['from_name'])){
$smtp_configured = false;
}
return $smtp_configured;
}
$GLOBALS['zulu_edm_smtp_mailer'] = new ZULU_EDM_SMTP_MAILER();
if(!function_exists('wp_mail') && is_zulu_edm_smtp_mailer_configured()){
function wp_mail( $to, $subject, $message, $headers = '', $attachments = array() ) {
// Compact the input, apply the filters, and extract them back out
/**
* Filters the wp_mail() arguments.
*
* @since 2.2.0
*
* @param array $args A compacted array of wp_mail() arguments, including the "to" email,
* subject, message, headers, and attachments values.
*/
$atts = apply_filters( 'wp_mail', compact( 'to', 'subject', 'message', 'headers', 'attachments' ) );
if ( isset( $atts['to'] ) ) {
$to = $atts['to'];
}
if ( !is_array( $to ) ) {
$to = explode( ',', $to );
}
if ( isset( $atts['subject'] ) ) {
$subject = $atts['subject'];
}
if ( isset( $atts['message'] ) ) {
$message = $atts['message'];
}
if ( isset( $atts['headers'] ) ) {
$headers = $atts['headers'];
}
if ( isset( $atts['attachments'] ) ) {
$attachments = $atts['attachments'];
}
if ( ! is_array( $attachments ) ) {
$attachments = explode( "\n", str_replace( "\r\n", "\n", $attachments ) );
}
$options = zulu_edm_smtp_mailer_get_option();
global $phpmailer;
// (Re)create it, if it's gone missing
if ( ! ( $phpmailer instanceof PHPMailer ) ) {
require 'src/PHPMailer.php';
require 'src/Exception.php';
require 'src/SMTP.php';
$phpmailer = new PHPMailer( true );
}
// Headers
$cc = $bcc = $reply_to = array();
if ( empty( $headers ) ) {
$headers = array();
} else {
if ( !is_array( $headers ) ) {
// Explode the headers out, so this function can take both
// string headers and an array of headers.
$tempheaders = explode( "\n", str_replace( "\r\n", "\n", $headers ) );
} else {
$tempheaders = $headers;
}
$headers = array();
// If it's actually got contents
if ( !empty( $tempheaders ) ) {
// Iterate through the raw headers
foreach ( (array) $tempheaders as $header ) {
if ( strpos($header, ':') === false ) {
if ( false !== stripos( $header, 'boundary=' ) ) {
$parts = preg_split('/boundary=/i', trim( $header ) );
$boundary = trim( str_replace( array( "'", '"' ), '', $parts[1] ) );
}
continue;
}
// Explode them out
list( $name, $content ) = explode( ':', trim( $header ), 2 );
// Cleanup crew
$name = trim( $name );
$content = trim( $content );
switch ( strtolower( $name ) ) {
// Mainly for legacy -- process a From: header if it's there
case 'from':
$bracket_pos = strpos( $content, '<' );
if ( $bracket_pos !== false ) {
// Text before the bracketed email is the "From" name.
if ( $bracket_pos > 0 ) {
$from_name = substr( $content, 0, $bracket_pos - 1 );
$from_name = str_replace( '"', '', $from_name );
$from_name = trim( $from_name );
}
$from_email = substr( $content, $bracket_pos + 1 );
$from_email = str_replace( '>', '', $from_email );
$from_email = trim( $from_email );
// Avoid setting an empty $from_email.
} elseif ( '' !== trim( $content ) ) {
$from_email = trim( $content );
}
break;
case 'content-type':
if ( strpos( $content, ';' ) !== false ) {
list( $type, $charset_content ) = explode( ';', $content );
$content_type = trim( $type );
if ( false !== stripos( $charset_content, 'charset=' ) ) {
$charset = trim( str_replace( array( 'charset=', '"' ), '', $charset_content ) );
} elseif ( false !== stripos( $charset_content, 'boundary=' ) ) {
$boundary = trim( str_replace( array( 'BOUNDARY=', 'boundary=', '"' ), '', $charset_content ) );
$charset = '';
}
// Avoid setting an empty $content_type.
} elseif ( '' !== trim( $content ) ) {
$content_type = trim( $content );
}
break;
case 'cc':
$cc = array_merge( (array) $cc, explode( ',', $content ) );
break;
case 'bcc':
$bcc = array_merge( (array) $bcc, explode( ',', $content ) );
break;
case 'reply-to':
$reply_to = array_merge( (array) $reply_to, explode( ',', $content ) );
break;
default:
// Add it to our grand headers array
$headers[trim( $name )] = trim( $content );
break;
}
}
}
}
// Empty out the values that may be set
$phpmailer->clearAllRecipients();
$phpmailer->clearAttachments();
$phpmailer->clearCustomHeaders();
$phpmailer->clearReplyTos();
// From email and name
// If we don't have a name from the input headers
if ( !isset( $from_name ) ){
$from_name = $options['from_name'];//'WordPress';
}
if ( !isset( $from_email ) ) {
// Get the site domain and get rid of www.
$sitename = strtolower( $_SERVER['SERVER_NAME'] );
if ( substr( $sitename, 0, 4 ) == 'www.' ) {
$sitename = substr( $sitename, 4 );
}
$from_email = $options['from_email'];//'wordpress@' . $sitename;
}
/**
* Filters the email address to send from.
*
* @since 2.2.0
*
* @param string $from_email Email address to send from.
*/
$from_email = apply_filters( 'wp_mail_from', $from_email );
/**
* Filters the name to associate with the "from" email address.
*
* @since 2.3.0
*
* @param string $from_name Name associated with the "from" email address.
*/
$from_name = apply_filters( 'wp_mail_from_name', $from_name );
try {
$phpmailer->setFrom( $from_email, $from_name, false );
} catch ( phpmailerException $e ) {
$mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' );
$mail_error_data['phpmailer_exception_code'] = $e->getCode();
/** This filter is documented in wp-includes/pluggable.php */
do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) );
return false;
}
// Set mail's subject and body
$phpmailer->Subject = $subject;
$phpmailer->Body = $message;
// Set destination addresses, using appropriate methods for handling addresses
$address_headers = compact( 'to', 'cc', 'bcc', 'reply_to' );
foreach ( $address_headers as $address_header => $addresses ) {
if ( empty( $addresses ) ) {
continue;
}
foreach ( (array) $addresses as $address ) {
try {
// Break $recipient into name and address parts if in the format "Foo <bar@baz.com>"
$recipient_name = '';
if ( preg_match( '/(.*)<(.+)>/', $address, $matches ) ) {
if ( count( $matches ) == 3 ) {
$recipient_name = $matches[1];
$address = $matches[2];
}
}
switch ( $address_header ) {
case 'to':
$phpmailer->addAddress( $address, $recipient_name );
break;
case 'cc':
$phpmailer->addCc( $address, $recipient_name );
break;
case 'bcc':
$phpmailer->addBcc( $address, $recipient_name );
break;
case 'reply_to':
$phpmailer->addReplyTo( $address, $recipient_name );
break;
}
} catch ( phpmailerException $e ) {
continue;
}
}
}
// Tell PHPMailer to use SMTP
$phpmailer->isSMTP(); //$phpmailer->IsMail();
// Set the hostname of the mail server
$phpmailer->Host = $options['smtp_host'];
// Whether to use SMTP authentication
if(isset($options['smtp_auth']) && $options['smtp_auth'] == "true"){
$phpmailer->SMTPAuth = true;
$phpmailer->AuthType = 'PLAIN';
// SMTP username
$phpmailer->Username = $options['smtp_username'];
// SMTP password
$phpmailer->Password = base64_decode($options['smtp_password']);
}
// Whether to use encryption
/* $type_of_encryption = $options['type_of_encryption'];
if($type_of_encryption=="none"){
$type_of_encryption = '';
}
*/
$phpmailer->SMTPSecure = $type_of_encryption;
// SMTP port
$phpmailer->Port = $options['smtp_port'];
// Whether to enable TLS encryption automatically if a server supports it
$phpmailer->SMTPAutoTLS = false;
//enable debug when sending a test mail
if(isset($_POST['zulu_edm_smtp_mailer_send_test_email'])){
$phpmailer->SMTPDebug = 4;
// Ask for HTML-friendly debug output
$phpmailer->Debugoutput = 'html';
}
//disable ssl certificate verification if checked
if(isset($options['disable_ssl_verification']) && !empty($options['disable_ssl_verification'])){
$phpmailer->SMTPOptions = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
'allow_self_signed' => true
)
);
}
// Set Content-Type and charset
// If we don't have a content-type from the input headers
if ( !isset( $content_type ) )
$content_type = 'text/plain';
/**
* Filters the wp_mail() content type.
*
* @since 2.3.0
*
* @param string $content_type Default wp_mail() content type.
*/
$content_type = apply_filters( 'wp_mail_content_type', $content_type );
$phpmailer->ContentType = $content_type;
// Set whether it's plaintext, depending on $content_type
if ( 'text/html' == $content_type )
$phpmailer->isHTML( true );
// If we don't have a charset from the input headers
if ( !isset( $charset ) )
$charset = get_bloginfo( 'charset' );
// Set the content-type and charset
/**
* Filters the default wp_mail() charset.
*
* @since 2.3.0
*
* @param string $charset Default email charset.
*/
$phpmailer->CharSet = apply_filters( 'wp_mail_charset', $charset );
// Set custom headers
if ( !empty( $headers ) ) {
foreach ( (array) $headers as $name => $content ) {
$phpmailer->addCustomHeader( sprintf( '%1$s: %2$s', $name, $content ) );
}
if ( false !== stripos( $content_type, 'multipart' ) && ! empty($boundary) )
$phpmailer->addCustomHeader( sprintf( "Content-Type: %s;\n\t boundary=\"%s\"", $content_type, $boundary ) );
}
if ( !empty( $attachments ) ) {
foreach ( $attachments as $attachment ) {
try {
$phpmailer->addAttachment($attachment);
} catch ( phpmailerException $e ) {
continue;
}
}
}
/**
* Fires after PHPMailer is initialized.
*
* @since 2.2.0
*
* @param PHPMailer $phpmailer The PHPMailer instance (passed by reference).
*/
do_action_ref_array( 'phpmailer_init', array( &$phpmailer ) );
// Send!
try {
return $phpmailer->send();
} catch ( phpmailerException $e ) {
$mail_error_data = compact( 'to', 'subject', 'message', 'headers', 'attachments' );
$mail_error_data['phpmailer_exception_code'] = $e->getCode();
/**
* Fires after a phpmailerException is caught.
*
* @since 4.4.0
*
* @param WP_Error $error A WP_Error object with the phpmailerException message, and an array
* containing the mail recipient, subject, message, headers, and attachments.
*/
do_action( 'wp_mail_failed', new WP_Error( 'wp_mail_failed', $e->getMessage(), $mail_error_data ) );
return false;
}
}
}