<?php
/**
* Send email to subscribers from selected group
*/
// Disable direct call
if ( ! defined( 'ABSPATH' ) ) { exit; }
// Theme init
if (!function_exists('citygov_emailer_theme_setup')) {
add_action( 'citygov_action_before_init_theme', 'citygov_emailer_theme_setup' );
function citygov_emailer_theme_setup() {
// AJAX: Save e-mail in subscribe list
add_action('wp_ajax_emailer_submit', 'citygov_callback_emailer_submit');
add_action('wp_ajax_nopriv_emailer_submit', 'citygov_callback_emailer_submit');
// AJAX: Confirm e-mail in subscribe list
add_action('wp_ajax_emailer_confirm', 'citygov_callback_emailer_confirm');
add_action('wp_ajax_nopriv_emailer_confirm', 'citygov_callback_emailer_confirm');
// AJAX: Get subscribers list if group changed
add_action('wp_ajax_emailer_group_getlist', 'citygov_callback_emailer_group_getlist');
add_action('wp_ajax_nopriv_emailer_group_getlist', 'citygov_callback_emailer_group_getlist');
}
}
if (!function_exists('citygov_emailer_theme_setup2')) {
add_action( 'citygov_action_after_init_theme', 'citygov_emailer_theme_setup2' ); // Fire this action after load theme options
function citygov_emailer_theme_setup2() {
if (is_admin() && current_user_can('manage_options') && citygov_get_theme_option('admin_emailer')=='yes') {
new citygov_emailer();
}
}
}
class citygov_emailer {
var $subscribers = array();
var $error = '';
var $success = '';
var $max_recipients_in_one_letter = 50;
//-----------------------------------------------------------------------------------
// Constuctor
//-----------------------------------------------------------------------------------
function __construct() {
// Setup actions handlers
add_action('admin_menu', array($this, 'admin_menu_item'));
add_action("admin_enqueue_scripts", array($this, 'load_scripts'));
add_action("admin_head", array($this, 'prepare_js'));
// Init properties
$this->subscribers = citygov_emailer_group_getlist();
}
//-----------------------------------------------------------------------------------
// Admin Interface
//-----------------------------------------------------------------------------------
function admin_menu_item() {
if ( current_user_can( 'manage_options' ) ) {
// 'theme' - add in the 'Appearance'
// 'management' - add in the 'Tools'
citygov_admin_add_menu_item('theme', array(
'page_title' => esc_html__('Emailer', 'citygov'),
'menu_title' => esc_html__('Emailer', 'citygov'),
'capability' => 'manage_options',
'menu_slug' => 'trx_emailer',
'callback' => array($this, 'build_page'),
'icon' => ''
)
);
}
}
//-----------------------------------------------------------------------------------
// Load required styles and scripts
//-----------------------------------------------------------------------------------
function load_scripts() {
if (isset($_REQUEST['page']) && $_REQUEST['page']=='trx_emailer') {
wp_enqueue_style('trx-emailer-style', trx_utils_get_file_url('tools/emailer/emailer.css'), array(), null);
wp_deregister_style('jquery_ui');
wp_deregister_style('date-picker-css');
}
if (isset($_REQUEST['page']) && $_REQUEST['page']=='trx_emailer') {
wp_enqueue_script('jquery-ui-core', false, array('jquery'), null, true);
wp_enqueue_script('jquery-ui-tabs', false, array('jquery', 'jquery-ui-core'), null, true);
wp_enqueue_script('trx-emailer-script', trx_utils_get_file_url('tools/emailer/emailer.js'), array('jquery'), null, true);
}
}
//-----------------------------------------------------------------------------------
// Prepare javascripts global variables
//-----------------------------------------------------------------------------------
function prepare_js() {
?>
<script type="text/javascript">
var CITYGOV_EMAILER_ajax_nonce = "<?php echo esc_attr(wp_create_nonce(admin_url('admin-ajax.php'))); ?>";
var CITYGOV_EMAILER_ajax_url = "<?php echo admin_url('admin-ajax.php'); ?>";
var CITYGOV_EMAILER_ajax_error = "<?php esc_html_e('Invalid server answer!', 'citygov'); ?>";
</script>
<?php
}
//-----------------------------------------------------------------------------------
// Build the Main Page
//-----------------------------------------------------------------------------------
function build_page() {
$subject = $message = $attach = $group = $sender_name = $sender_email = '';
$subscribers_update = $subscribers_delete = $subscribers_clear = false;
$subscribers = array();
if ( isset($_POST['emailer_subject']) ) {
do {
// Check nonce
if ( !wp_verify_nonce( citygov_get_value_gp('nonce'), admin_url('admin-ajax.php') ) ) {
$this->error = esc_html__('Incorrect WP-nonce data! Operation canceled!', 'citygov');
break;
}
// Get post data
$subject = citygov_get_value_gp('emailer_subject');
if (empty($subject)) {
$this->error = esc_html__('Subject can not be empty! Operation canceled!', 'citygov');
break;
}
$message = citygov_get_value_gp('emailer_message');
if (empty($message)) {
$this->error = esc_html__('Message can not be empty! Operation canceled!', 'citygov');
break;
}
$attach = isset($_FILES['emailer_attachment']['tmp_name']) && file_exists($_FILES['emailer_attachment']['tmp_name']) ? $_FILES['emailer_attachment']['tmp_name'] : '';
$group = citygov_get_value_gp('emailer_group');
$subscribers = citygov_get_value_gp('emailer_subscribers');
if (!empty($subscribers))
$subscribers = explode("\n", str_replace(array(';', ','), array("\n", "\n"), $subscribers));
else
$subscribers = array();
if (count($subscribers)==0) {
$this->error = esc_html__('Subscribers lists are empty! Operation canceled!', 'citygov');
break;
}
$sender_name = citygov_get_value_gp('emailer_sender_name', get_bloginfo('name'));
$sender_email = citygov_get_value_gp('emailer_sender_email');
if (empty($sender_email)) $sender_email = citygov_get_theme_option('contact_email');
if (empty($sender_email)) $sender_email = get_bloginfo('admin_email');
if (empty($sender_email)) {
$this->error = esc_html__('Sender email is empty! Operation canceled!', 'citygov');
break;
}
$headers = 'From: ' . trim($sender_name) . ' <' . trim($sender_email) . '>' . "\r\n";
$subscribers_update = isset($_POST['emailer_subscribers_update']);
$subscribers_delete = isset($_POST['emailer_subscribers_delete']);
$subscribers_clear = isset($_POST['emailer_subscribers_clear']);
// Send email
add_filter( 'wp_mail_content_type', 'citygov_set_html_content_type' );
$new_list = array();
$list = array();
$cnt = 0;
$mail = citygov_get_theme_option('mail_function');
if (is_array($subscribers) && count($subscribers) > 0) {
foreach ($subscribers as $email) {
$email = trim(chop($email));
if (empty($email)) continue;
if (!preg_match('/[\.\-_A-Za-z0-9]+?@[\.\-A-Za-z0-9]+?[\ .A-Za-z0-9]{2,}/', $email)) continue;
$list[] = $email;
$cnt++;
if ($cnt >= $this->max_recipients_in_one_letter) {
@$mail( $list, $subject, $message, $headers, $attach );
if ($subscribers_update && $group!='none') $new_list = array_merge($new_list, $list);
$list = array();
$cnt = 0;
}
}
}
if ($cnt > 0) {
@$mail( $list, $subject, $message, $headers, $attach );
if ($subscribers_update && $group!='none') $new_list = array_merge($new_list, $list);
$list = array();
$cnt = 0;
}
remove_filter( 'wp_mail_content_type', 'citygov_set_html_content_type' );
$add_msg = '';
if ($subscribers_update && $group!='none') {
$rez = array();
if (is_array($this->subscribers[$group]) && count($this->subscribers[$group]) > 0) {
foreach ($this->subscribers[$group] as $k=>$v) {
if (!$subscribers_clear && !empty($v))
$rez[$k] = $v;
}
}
if (is_array($new_list) && count($new_list) > 0) {
foreach ($new_list as $v) {
$rez[$v] = '';
}
}
$this->subscribers[$group] = $rez;
update_option('citygov_emailer_subscribers', $this->subscribers);
$add_msg = esc_html__(' The subscriber list is updated', 'citygov');
} else if ($subscribers_delete && $group!='none') {
unset($this->subscribers[$group]);
update_option('citygov_emailer_subscribers', $this->subscribers);
$add_msg = esc_html__(' The subscriber list is cleared', 'citygov');
}
$this->success = esc_html__('E-Mail was send successfull!', 'citygov') . $add_msg;
} while (false);
}
?>
<div class="trx_emailer">
<h2 class="trx_emailer_title"><?php esc_html_e('CityGov Emailer', 'citygov'); ?></h2>
<div class="trx_emailer_result">
<?php if (!empty($this->error)) { ?>
<div class="error">
<p><?php echo trim($this->error); ?></p>
</div>
<?php } ?>
<?php if (!empty($this->success)) { ?>
<div class="updated">
<p><?php echo trim($this->success); ?></p>
</div>
<?php } ?>
</div>
<form id="trx_emailer_form" action="#" method="post" enctype="multipart/form-data">
<input type="hidden" value="<?php echo esc_attr(wp_create_nonce(admin_url('admin-ajax.php'))); ?>" name="nonce" />
<div class="trx_emailer_block">
<fieldset class="trx_emailer_block_inner">
<legend> <?php esc_html_e('Letter data', 'citygov'); ?> </legend>
<div class="trx_emailer_fields">
<div class="trx_emailer_field trx_emailer_subject">
<label for="emailer_subject"><?php esc_html_e('Subject:', 'citygov'); ?></label>
<input type="text" value="<?php echo esc_attr($subject); ?>" name="emailer_subject" id="emailer_subject" />
</div>
<div class="trx_emailer_field trx_emailer_attachment">
<label for="emailer_attachment"><?php esc_html_e('Attachment:', 'citygov'); ?></label>
<input type="file" name="emailer_attachment" id="emailer_attachment" />
</div>
<div class="trx_emailer_field trx_emailer_message">
<?php
wp_editor( $message, 'emailer_message', array(
'wpautop' => false,
'textarea_rows' => 10
));
?>
</div>
</div>
</fieldset>
</div>
<div class="trx_emailer_block">
<fieldset class="trx_emailer_block_inner">
<legend> <?php esc_html_e('Subscribers', 'citygov'); ?> </legend>
<div class="trx_emailer_fields">
<div class="trx_emailer_field trx_emailer_group">
<label for="emailer_group"><?php esc_html_e('Select group:', 'citygov'); ?></label>
<select name="emailer_group" id="emailer_group">
<option value="none"<?php echo ('none'==$group ? ' selected="selected"' : ''); ?>><?php esc_html_e('- Select group -', 'citygov'); ?></option>
<?php
if (is_array($this->subscribers) && count($this->subscribers) > 0) {
foreach ($this->subscribers as $gr=>$list) {
echo '<option value="'.esc_attr($gr).'"'.($group==$gr ? ' selected="selected"' : '').'>'.citygov_strtoproper($gr).'</option>';
}
}
?>
</select>
<input type="checkbox" name="emailer_subscribers_update" id="emailer_subscribers_update" value="1"<?php echo !empty($subscribers_update) ? ' checked="checked"' : ''; ?> /><label for="emailer_subscribers_update" class="inline" title="<?php esc_attr_e('Update the subscribers list for selected group', 'citygov'); ?>"><?php esc_html_e('Update', 'citygov'); ?></label>
<input type="checkbox" name="emailer_subscribers_clear" id="emailer_subscribers_clear" value="1"<?php echo !empty($subscribers_clear) ? ' checked="checked"' : ''; ?> /><label for="emailer_subscribers_clear" class="inline" title="<?php esc_attr_e('Clear this group from not confirmed emails after send', 'citygov'); ?>"><?php esc_html_e('Clear', 'citygov'); ?></label>
<input type="checkbox" name="emailer_subscribers_delete" id="emailer_subscribers_delete" value="1"<?php echo !empty($subscribers_delete) ? ' checked="checked"' : ''; ?> /><label for="emailer_subscribers_delete" class="inline" title="<?php esc_attr_e('Delete this group after send', 'citygov'); ?>"><?php esc_html_e('Delete', 'citygov'); ?></label>
</div>
<div class="trx_emailer_field trx_emailer_subscribers2">
<label for="emailer_subscribers" class="big"><?php esc_html_e('List of recipients:', 'citygov'); ?></label>
<textarea name="emailer_subscribers" id="emailer_subscribers"><?php echo join("\n", $subscribers); ?></textarea>
</div>
<div class="trx_emailer_field trx_emailer_sender_name">
<label for="emailer_sender_name"><?php esc_html_e('Sender name:', 'citygov'); ?></label>
<input type="text" name="emailer_sender_name" id="emailer_sender_name" value="<?php echo esc_attr($sender_name); ?>" /><br />
</div>
<div class="trx_emailer_field trx_emailer_sender_email">
<label for="emailer_sender_email"><?php esc_html_e('Sender email:', 'citygov'); ?></label>
<input type="text" name="emailer_sender_email" id="emailer_sender_email" value="<?php echo esc_attr($sender_email); ?>" />
</div>
</div>
</fieldset>
</div>
<div class="trx_emailer_buttons">
<a href="#" id="trx_emailer_send"><?php echo esc_html_e('Send', 'citygov'); ?></a>
</div>
</form>
</div>
<?php
}
}
//==========================================================================================
// Utilities
//==========================================================================================
// Set email content type
if ( !function_exists( 'citygov_set_html_content_type' ) ) {
function citygov_set_html_content_type() {
return 'text/html';
}
}
// Save e-mail in subscribe list
if ( !function_exists( 'citygov_callback_emailer_submit' ) ) {
function citygov_callback_emailer_submit() {
if ( !wp_verify_nonce( citygov_get_value_gp('nonce'), admin_url('admin-ajax.php') ) )
die();
$response = array('error'=>'');
$group = $_REQUEST['group'];
$email = $_REQUEST['email'];
if (preg_match('/[\.\-_A-Za-z0-9]+?@[\.\-A-Za-z0-9]+?[\ .A-Za-z0-9]{2,}/', $email)) {
$subscribers = citygov_emailer_group_getlist($group);
if (isset($subscribers[$group][$email]))
$response['error'] = esc_html__('E-mail address already in the subscribers list!', 'citygov');
else {
$subscribers[$group][$email] = md5(mt_rand());
update_option('citygov_emailer_subscribers', $subscribers);
$subj = sprintf(esc_html__('Site %s - Subscribe confirmation', 'citygov'), get_bloginfo('site_name'));
$url = admin_url('admin-ajax.php');
$link = $url . (citygov_strpos($url, '?')===false ? '?' : '') . 'action=emailer_confirm&nonce='.urlencode($subscribers[$group][$email]).'&email='.urlencode($email).'&group='.urlencode($group);
$msg = sprintf(esc_html__("You or someone else added this e-mail address into our subcribtion list.\nPlease, confirm your wish to receive newsletters from our website by clicking on the link below:\n\n<a href=\"%s\">%s</a>\n\nIf you do not wiish to subscribe to our newsletters, simply ignore this message.", 'citygov'), $link, $link);
add_filter( 'wp_mail_content_type', 'citygov_set_html_content_type' );
$sender_name = get_bloginfo('name');
$sender_email = citygov_get_theme_option('contact_email');
if (empty($sender_email)) $sender_email = get_bloginfo('admin_email');
$headers = 'From: ' . trim($sender_name).' <' . trim($sender_email) . '>' . "\r\n";
$mail = citygov_get_theme_option('mail_function');
if (!@$mail($email, $subj, nl2br($msg), $headers)) {
$response['error'] = esc_html__('Error send message!', 'citygov');
}
remove_filter( 'wp_mail_content_type', 'citygov_set_html_content_type' );
}
} else
$response['error'] = esc_html__('E-mail address is not valid!', 'citygov');
echo json_encode($response);
die();
}
}
// Confirm e-mail in subscribe list
if ( !function_exists( 'citygov_callback_emailer_confirm' ) ) {
function citygov_callback_emailer_confirm() {
$group = $_REQUEST['group'];
$email = $_REQUEST['email'];
$nonce = $_REQUEST['nonce'];
if (preg_match('/[\.\-_A-Za-z0-9]+?@[\.\-A-Za-z0-9]+?[\ .A-Za-z0-9]{2,}/', $email)) {
$subscribers = citygov_emailer_group_getlist($group);
if (isset($subscribers[$group][$email])) {
if ($subscribers[$group][$email] == $nonce) {
$subscribers[$group][$email] = '';
update_option('citygov_emailer_subscribers', $subscribers);
citygov_set_system_message(esc_html__('Confirmation complete! E-mail address succefully added in the subscribers list!', 'citygov'), 'success');
//header('Location: '.home_url('/'));
wp_safe_redirect( home_url('/') );
} else if ($subscribers[$group][$email] != '') {
citygov_set_system_message(esc_html__('Bad confirmation code!', 'citygov'), 'error');
//header('Location: '.home_url('/'));
wp_safe_redirect( home_url('/') );
} else {
citygov_set_system_message(esc_html__('E-mail address already exists in the subscribers list!', 'citygov'), 'error');
//header('Location: '.home_url('/'));
wp_safe_redirect( home_url('/') );
}
}
}
die();
}
}
// Get subscribers list if group changed
if ( !function_exists( 'citygov_callback_emailer_group_getlist' ) ) {
function citygov_callback_emailer_group_getlist() {
if ( !wp_verify_nonce( citygov_get_value_gp('nonce'), admin_url('admin-ajax.php') ) )
die();
$response = array('error'=>'', 'subscribers' => '');
$group = $_REQUEST['group'];
$subscribers = citygov_emailer_group_getlist($group);
$list = array();
if (isset($subscribers[$group]) && is_array($subscribers[$group]) && count($subscribers[$group]) > 0) {
foreach ($subscribers[$group] as $k=>$v) {
if (empty($v))
$list[] = $k;
}
}
$response['subscribers'] = join("\n", $list);
echo json_encode($response);
die();
}
}
// Get Subscribers list
if ( !function_exists( 'citygov_emailer_group_getlist' ) ) {
function citygov_emailer_group_getlist($group='') {
$subscribers = get_option('citygov_emailer_subscribers', array());
if (!is_array($subscribers))
$subscribers = array();
if (!empty($group) && (!isset($subscribers[$group]) || !is_array($subscribers[$group])))
$subscribers[$group] = array();
if (is_array($subscribers) && count($subscribers) > 0) {
$need_save = false;
foreach ($subscribers as $grp=>$list) {
if (isset($list[0])) { // Plain array - old format - convert it
$rez = array();
foreach ($list as $v) {
$rez[$v] = '';
}
$subscribers[$grp] = $rez;
$need_save = true;
}
}
if ($need_save)
update_option('citygov_emailer_subscribers', $subscribers);
}
return $subscribers;
}
}
?>
