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<?php
/**
* User by add-ons as base-class.
*/
class NewsletterAddon {
var $logger;
var $admin_logger;
var $name;
var $options;
var $version;
var $labels;
public function __construct($name, $version = '0.0.0') {
$this->name = $name;
$this->version = $version;
if (is_admin()) {
$old_version = get_option('newsletter_' . $name . '_version');
if ($version !== $old_version) {
$this->upgrade($old_version === false);
update_option('newsletter_' . $name . '_version', $version, false);
}
}
add_action('newsletter_init', array($this, 'init'));
//Load translations from specific addon /languages/ directory
load_plugin_textdomain('newsletter-' . $this->name, false, 'newsletter-' . $this->name . '/languages/');
}
/**
* Method to be overridden and invoked on version change or on first install.
*
* @param bool $first_install
*/
function upgrade($first_install = false) {
}
/**
* Method to be overridden to initialize the add-on. It is invoked when Newsletter
* fires the <code>newsletter_init</code> event.
*/
function init() {
}
function get_current_language() {
return Newsletter::instance()->get_current_language();
}
function is_all_languages() {
return Newsletter::instance()->is_all_languages();
}
function is_allowed() {
return Newsletter::instance()->is_allowed();
}
/**
* General logger for this add-on.
*
* @return NewsletterLogger
*/
function get_logger() {
if (!$this->logger) {
$this->logger = new NewsletterLogger($this->name);
}
return $this->logger;
}
/**
* Specific logger for administrator actions.
*
* @return NewsletterLogger
*/
function get_admin_logger() {
if (!$this->admin_logger) {
$this->admin_logger = new NewsletterLogger($this->name . '-admin');
}
return $this->admin_logger;
}
/**
* Loads and prepares the options. It can be used to late initialize the options to save some resources on
* add-ons which do not need to do something on each page load.
*/
function setup_options() {
if ($this->options) {
return;
}
$this->options = get_option('newsletter_' . $this->name, []);
}
/**
* Retrieve the stored options, merged with the specified language set.
*
* @param string $language
* @return array
*/
function get_options($language = '') {
if ($language) {
return array_merge(get_option('newsletter_' . $this->name, []), get_option('newsletter_' . $this->name . '_' . $language, []));
} else {
return get_option('newsletter_' . $this->name, []);
}
}
/**
* Saved the options under the correct keys and update the internal $options
* property.
* @param array $options
*/
function save_options($options, $language = '') {
if ($language) {
update_option('newsletter_' . $this->name . '_' . $language, $options);
} else {
update_option('newsletter_' . $this->name, $options);
$this->options = $options;
}
}
function merge_defaults($defaults) {
$options = get_option('newsletter_' . $this->name, []);
$options = array_merge($defaults, $options);
$this->save_options($options);
}
/**
*
*/
function setup_labels() {
if (!$this->labels) {
$labels = [];
}
}
function get_label($key) {
if (!$this->options)
$this->setup_options();
if (!empty($this->options[$key])) {
return $this->options[$key];
}
if (!$this->labels)
$this->setup_labels();
// We assume the required key is defined. If not there is an error elsewhere.
return $this->labels[$key];
}
/**
* Equivalent to $wpdb->query() but logs the event in case of error.
*
* @global wpdb $wpdb
* @param string $query
*/
function query($query) {
global $wpdb;
$r = $wpdb->query($query);
if ($r === false) {
$logger = $this->get_logger();
$logger->fatal($query);
$logger->fatal($wpdb->last_error);
}
return $r;
}
}
/**
* Used by mailer add-ons as base-class. Some specific options collected by the mailer
* are interpreted automatically.
*
* They are:
*
* `enabled` if not empty it means the mailer is active and should be registered
*
* The options are set up in the constructor, there is no need to setup them later.
*/
class NewsletterMailerAddon extends NewsletterAddon {
var $enabled = false;
function __construct($name, $version = '0.0.0') {
parent::__construct($name, $version);
$this->setup_options();
$this->enabled = !empty($this->options['enabled']);
}
/**
* This method must be called as `parent::init()` is overridden.
*/
function init() {
parent::init();
add_action('newsletter_register_mailer', function () {
if ($this->enabled) {
Newsletter::instance()->register_mailer($this->get_mailer());
}
});
}
/**
* Must return an implementation of NewsletterMailer.
* @return NewsletterMailer
*/
function get_mailer() {
return null;
}
function get_last_run() {
return get_option('newsletter_' . $this->name . '_last_run', 0);
}
function save_last_run($time) {
update_option('newsletter_' . $this->name . '_last_run', $time);
}
function save_options($options, $language = '') {
parent::save_options($options, $language);
$this->enabled = !empty($options['enabled']);
}
/**
* Returns a TNP_Mailer_Message built to send a test message to the <code>$to</code>
* email address.
*
* @param string $to
* @param string $subject
* @return TNP_Mailer_Message
*/
static function get_test_message($to, $subject = '', $type = '') {
$message = new TNP_Mailer_Message();
$message->to = $to;
$message->to_name = '';
if (empty($type) || $type == 'html') {
$message->body = file_get_contents(NEWSLETTER_DIR . '/includes/test-message.html');
$message->body = str_replace('{plugin_url}', NEWSLETTER_URL, $message->body);
}
if (empty($type) || $type == 'text') {
$message->body_text = 'This is the TEXT version of a test message. You should see this message only if you email client does not support the rich text (HTML) version.';
}
$message->headers['X-Newsletter-Email-Id'] = '0';
if (empty($subject)) {
$message->subject = '[' . get_option('blogname') . '] Test message from Newsletter (' . date(DATE_ISO8601) . ')';
} else {
$message->subject = $subject;
}
if ($type) {
$message->subject .= ' - ' . $type . ' only';
}
$message->from = Newsletter::instance()->options['sender_email'];
$message->from_name = Newsletter::instance()->options['sender_name'];
return $message;
}
/**
* Returns a set of test messages to be sent to the specified email address. Used for
* turbo mode tests. Each message has a different generated subject.
*
* @param string $to The destination mailbox
* @param int $count Number of message objects to create
* @return TNP_Mailer_Message[]
*/
function get_test_messages($to, $count, $type = '') {
$messages = array();
for ($i = 0; $i < $count; $i++) {
$messages[] = self::get_test_message($to, '[' . get_option('blogname') . '] Test message ' . ($i + 1) . ' from Newsletter (' . date(DATE_ISO8601) . ')', $type);
}
return $messages;
}
}