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<?php
defined('ABSPATH') || exit;
/**
* @property int $id The list unique identifier
* @property string $name The list name
* @property bool $forced If the list must be added to every new subscriber
* @property int $status When and how the list is visible to the subscriber - see constants
* @property bool $checked If it must be pre-checked on subscription form
* @property array $languages The list of language used to pre-assign this list
*/
abstract class TNP_List {
const STATUS_PRIVATE = 0;
const STATUS_PUBLIC = 2;
const STATUS_PROFILE_ONLY = 1;
const STATUS_HIDDEN = 3; // Public but never show (can be set with a hidden form field)
}
/**
* @property int $id The list unique identifier
* @property string $name The list name
* @property int $status When and how the list is visible to the subscriber - see constants
*/
abstract class TNP_Profile {
const STATUS_PRIVATE = 0;
const STATUS_PUBLIC = 2;
const STATUS_PROFILE_ONLY = 1;
const STATUS_HIDDEN = 3; // Public but never show (can be set with a hidden form field)
}
/**
* @property int $id The subscriber unique identifier
* @property string $email The subscriber email
* @property string $name The subscriber name or first name
* @property string $surname The subscriber last name
* @property string $status The subscriber status
* @property string $language The subscriber language code 2 chars lowercase
*/
abstract class TNP_User {
const STATUS_CONFIRMED = 'C';
const STATUS_NOT_CONFIRMED = 'S';
const STATUS_UNSUBSCRIBED = 'U';
const STATUS_BOUNCED = 'B';
}
/**
* @property int $id The subscriber unique identifier
* @property string $subject The subscriber email
* @property string $message The subscriber name or first name
* @property string $track The subscriber last name
* @property array $options The subscriber status
* */
abstract class TNP_Email {
}
/**
* @property string $id Theme identifier
* @property string $dir Absolute path to the theme folder
* @property string $name Theme name
**/
class TNP_Theme {
var $dir;
var $name;
public function get_defaults() {
@include $this->dir . '/theme-defaults.php';
if (!isset($theme_defaults) || !is_array($theme_defaults)) return array();
return $theme_defaults;
}
}
class NewsletterModule {
/**
* @var NewsletterLogger
*/
var $logger;
/**
* @var NewsletterStore
*/
var $store;
/**
* The main module options
* @var array
*/
var $options;
/**
* @var string The module name
*/
var $module;
/**
* The module version
* @var string
*/
var $version;
var $old_version;
var $module_id;
var $available_version;
/**
* Prefix for all options stored on WordPress options table.
* @var string
*/
var $prefix;
/**
* @var NewsletterThemes
*/
var $themes;
var $components;
function __construct($module, $version, $module_id = null, $components = array()) {
$this->module = $module;
$this->version = $version;
$this->module_id = $module_id;
$this->prefix = 'newsletter_' . $module;
array_unshift($components, '');
$this->components = $components;
$this->logger = new NewsletterLogger($module);
$this->options = $this->get_options();
$this->store = NewsletterStore::singleton();
//$this->logger->debug($module . ' constructed');
// Version check
if (is_admin()) {
$this->old_version = get_option($this->prefix . '_version', '0.0.0');
if ($this->old_version == '0.0.0') {
require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
$this->first_install();
update_option($this->prefix . "_first_install_time", time(), FALSE);
}
if (strcmp($this->old_version, $this->version) != 0) {
require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
$this->logger->info('Version changed from ' . $this->old_version . ' to ' . $this->version);
// Do all the stuff for this version change
$this->upgrade();
update_option($this->prefix . '_version', $this->version);
}
add_action('admin_menu', array($this, 'admin_menu'));
$this->available_version = get_option($this->prefix . '_available_version');
}
}
/**
*
* @global wpdb $wpdb
* @param string $query
*/
function query($query) {
global $wpdb;
$this->logger->debug($query);
$r = $wpdb->query($query);
if ($r === false) {
$this->logger->fatal($wpdb->last_error);
}
return $r;
}
/**
*
* @global wpdb $wpdb
* @param string $table
* @param array $data
*/
function insert($table, $data) {
global $wpdb;
$this->logger->debug("inserting into table $table");
$r = $wpdb->insert($table, $data);
if ($r === false) {
$this->logger->fatal($wpdb->last_error);
}
}
function first_install() {
$this->logger->debug('First install');
}
/**
* Does a basic upgrade work, checking if the options is already present and if not (first
* installation), recovering the defaults, saving them on database and initializing the
* internal $options.
*/
function upgrade() {
foreach ($this->components as $component) {
$this->logger->debug('Upgrading component ' . $component);
$this->init_options($component);
}
}
function init_options($component = '', $autoload = true) {
global $wpdb;
$default_options = $this->get_default_options($component);
$options = $this->get_options($component);
$options = array_merge($default_options, $options);
$this->save_options($options, $component, $autoload);
}
function upgrade_query($query) {
global $wpdb, $charset_collate;
$this->logger->info('upgrade_query> Executing ' . $query);
$suppress_errors = $wpdb->suppress_errors(true);
$wpdb->query($query);
if ($wpdb->last_error) {
$this->logger->debug($wpdb->last_error);
}
$wpdb->suppress_errors($suppress_errors);
}
/**
* Kept for compatibility.
*/
static function get_available_version($module_id, $force = false) {
return '';
}
/**
* Kept for compatibility.
*/
function new_version_available($force = false) {
return false;
}
/** Returns a prefix to be used for option names and other things which need to be uniquely named. The parameter
* "sub" should be used when a sub name is needed for another set of options or like.
*
* @param string $sub
* @return string The prefix for names
*/
function get_prefix($sub = '', $language = '') {
return $this->prefix . (!empty($sub) ? '_' : '') . $sub . (!empty($language) ? '_' : '') . $language;
}
/**
* Returns the options of a module, if not found an empty array.
*/
function get_options($sub = '', $language = '') {
$options = get_option($this->get_prefix($sub, $language), array());
// Protection against scarmled database...
if (!is_array($options)) {
$options = array();
}
if ($language) {
$main_options = get_option($this->get_prefix($sub));
// Protection against scarmled database...
if (!is_array($main_options))
$main_options = array();
//$options = array_merge($main_options, array_filter($options));
$options = array_merge($main_options, $options);
}
return $options;
}
function get_default_options($sub = '') {
if (!empty($sub)) {
$sub = '-' . $sub;
}
$file = NEWSLETTER_DIR . '/' . $this->module . '/defaults' . $sub . '.php';
if (file_exists($file)) {
@include $file;
}
if (!isset($options) || !is_array($options)) {
return array();
}
return $options;
}
function reset_options($sub = '') {
$this->save_options(array_merge($this->get_options($sub), $this->get_default_options($sub)), $sub);
return $this->get_options($sub);
}
/**
* Saves the module options (or eventually a subset names as per parameter $sub). $options
* should be an array (even if it can work with non array options.
* The internal module options variable IS initialized with those new options only for the main
* options (empty $sub parameter).
* If the options contain a "theme" value, the theme-related options contained are saved as well
* (used by some modules).
*
* @param array $options
* @param string $sub
*/
function save_options($options, $sub = '', $autoload = null, $language = '') {
update_option($this->get_prefix($sub, $language), $options, $autoload);
if (empty($sub) && empty($language)) {
$this->options = $options;
if (isset($this->themes) && isset($options['theme'])) {
$this->themes->save_options($options['theme'], $options);
}
}
}
function delete_options($sub = '') {
delete_option($this->get_prefix($sub));
if (empty($sub)) {
$this->options = array();
}
}
function merge_options($options, $sub = '', $language = '') {
if (!is_array($options))
$options = array();
$old_options = $this->get_options($sub, $language);
$this->save_options(array_merge($old_options, $options), $sub, null, $language);
}
function backup_options($sub) {
$options = $this->get_options($sub);
update_option($this->get_prefix($sub) . '_backup', $options, false);
}
function get_last_run($sub = '') {
return get_option($this->get_prefix($sub) . '_last_run', 0);
}
/**
* Save the module last run value. Used to store a timestamp for some modules,
* for example the Feed by Mail module.
*
* @param int $time Unix timestamp (as returned by time() for example)
* @param string $sub Sub module name (default empty)
*/
function save_last_run($time, $sub = '') {
update_option($this->get_prefix($sub) . '_last_run', $time);
}
/**
* Sums $delta seconds to the last run time.
* @param int $delta Seconds
* @param string $sub Sub module name (default empty)
*/
function add_to_last_run($delta, $sub = '') {
$time = $this->get_last_run($sub);
$this->save_last_run($time + $delta, $sub);
}
/**
* Checks if the semaphore of that name (for this module) is still red. If it is active the method
* returns false. If it is not active, it will be activated for $time seconds.
*
* Since this method activate the semaphore when called, it's name is a bit confusing.
*
* @param string $name Sempahore name (local to this module)
* @param int $time Max time in second this semaphore should stay red
* @return boolean False if the semaphore is red and you should not proceed, true is it was not active and has been activated.
*/
function check_transient($name, $time) {
if ($time < 60)
$time = 60;
//usleep(rand(0, 1000000));
if (($value = get_transient($this->get_prefix() . '_' . $name)) !== false) {
$this->logger->error('Blocked by transient ' . $this->get_prefix() . '_' . $name . ' set ' . (time() - $value) . ' seconds ago');
return false;
}
set_transient($this->get_prefix() . '_' . $name, time(), $time);
return true;
}
function delete_transient($name = '') {
delete_transient($this->get_prefix() . '_' . $name);
}
/** Returns a random token of the specified size (or 10 characters if size is not specified).
*
* @param int $size
* @return string
*/
static function get_token($size = 10) {
return substr(md5(rand()), 0, $size);
}
/**
* Adds query string parameters to an URL checing id there are already other parameters.
*
* @param string $url
* @param string $qs The part of query-string to add (param1=value1¶m2=value2...)
* @param boolean $amp If the method must use the & instead of the plain & (default true)
* @return string
*/
static function add_qs($url, $qs, $amp = true) {
if (strpos($url, '?') !== false) {
if ($amp)
return $url . '&' . $qs;
else
return $url . '&' . $qs;
} else
return $url . '?' . $qs;
}
/**
* Returns the email address normalized, lowercase with no spaces. If it's not a valid email
* returns false.
*/
static function normalize_email($email) {
if (!is_string($email))
return false;
$email = strtolower(trim($email));
if (!is_email($email)) {
return false;
}
//$email = apply_filters('newsletter_normalize_email', $email);
return $email;
}
static function normalize_name($name) {
$name = str_replace(';', ' ', $name);
$name = strip_tags($name);
return $name;
}
static function normalize_sex($sex) {
$sex = trim(strtolower($sex));
if ($sex != 'f' && $sex != 'm') {
$sex = 'n';
}
return $sex;
}
static function is_email($email, $empty_ok = false) {
if (!is_string($email))
return false;
$email = strtolower(trim($email));
if ($email == '') {
return $empty_ok;
}
if (!is_email($email)) {
return false;
}
// TODO: To be moved on the subscription module and make configurable
if (strpos($email, 'mailinator.com') !== false) {
return false;
}
if (strpos($email, 'guerrillamailblock.com') !== false) {
return false;
}
if (strpos($email, 'emailtemporanea.net') !== false) {
return false;
}
return true;
}
/**
* Converts a GMT date from mysql (see the posts table columns) into a timestamp.
*
* @param string $s GMT date with format yyyy-mm-dd hh:mm:ss
* @return int A timestamp
*/
static function m2t($s) {
// TODO: use the wordpress function I don't remeber the name
$s = explode(' ', $s);
$d = explode('-', $s[0]);
$t = explode(':', $s[1]);
return gmmktime((int) $t[0], (int) $t[1], (int) $t[2], (int) $d[1], (int) $d[2], (int) $d[0]);
}
static function format_date($time) {
if (empty($time)) {
return '-';
}
return gmdate(get_option('date_format') . ' ' . get_option('time_format'), $time + get_option('gmt_offset') * 3600);
}
static function format_time_delta($delta) {
$days = floor($delta / (3600 * 24));
$hours = floor(($delta % (3600 * 24)) / 3600);
$minutes = floor(($delta % 3600) / 60);
$seconds = floor(($delta % 60));
$buffer = $days . ' days, ' . $hours . ' hours, ' . $minutes . ' minutes, ' . $seconds . ' seconds';
return $buffer;
}
/**
* Formats a scheduler returned "next execution" time, managing negative or false values. Many times
* used in conjuction with "last run".
*
* @param string $name The scheduler name
* @return string
*/
static function format_scheduler_time($name) {
$time = wp_next_scheduled($name);
if ($time === false) {
return 'No next run scheduled';
}
$delta = $time - time();
// If less 10 minutes late it can be a cron problem but now it is working
if ($delta < 0 && $delta > -600) {
return 'Probably running now';
} else if ($delta <= -600) {
return 'It seems the cron system is not working. Reload the page to see if this message change.';
}
return 'Runs in ' . self::format_time_delta($delta);
}
static function date($time = null, $now = false, $left = false) {
if (is_null($time)) {
$time = time();
}
if ($time == false) {
$buffer = 'none';
} else {
$buffer = gmdate(get_option('date_format') . ' ' . get_option('time_format'), $time + get_option('gmt_offset') * 3600);
}
if ($now) {
$buffer .= ' (now: ' . gmdate(get_option('date_format') . ' ' .
get_option('time_format'), time() + get_option('gmt_offset') * 3600);
$buffer .= ')';
}
if ($left) {
$buffer .= ', ' . gmdate('H:i:s', $time - time()) . ' left';
}
return $buffer;
}
/**
* Return an array of array with on first element the array of recent post and on second element the array
* of old posts.
*
* @param array $posts
* @param int $time
*/
static function split_posts(&$posts, $time = 0) {
if ($time < 0) {
return array_chunk($posts, ceil(count($posts) / 2));
}
$result = array(array(), array());
if (empty($posts))
return $result;
foreach ($posts as &$post) {
if (self::is_post_old($post, $time))
$result[1][] = $post;
else
$result[0][] = $post;
}
return $result;
}
static function is_post_old(&$post, $time = 0) {
return self::m2t($post->post_date_gmt) <= $time;
}
static function get_post_image($post_id = null, $size = 'thumbnail', $alternative = null) {
global $post;
if (empty($post_id))
$post_id = $post->ID;
if (empty($post_id))
return $alternative;
$image_id = function_exists('get_post_thumbnail_id') ? get_post_thumbnail_id($post_id) : false;
if ($image_id) {
$image = wp_get_attachment_image_src($image_id, $size);
return $image[0];
} else {
$attachments = get_children(array('post_parent' => $post_id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => 'ASC', 'orderby' => 'menu_order ID'));
if (empty($attachments)) {
return $alternative;
}
foreach ($attachments as $id => $attachment) {
$image = wp_get_attachment_image_src($id, $size);
return $image[0];
}
}
}
/**
* Cleans up a text containing url tags with appended the absolute URL (due to
* the editor behavior) moving back them to the simple form.
*/
static function clean_url_tags($text) {
$text = str_replace('%7B', '{', $text);
$text = str_replace('%7D', '}', $text);
// Only tags which are {*_url}
$text = preg_replace("/[\"']http[^\"']+(\\{[^\\}]+_url\\})[\"']/i", "\"\\1\"", $text);
return $text;
}
function get_styles() {
$list = array('' => 'none');
$dir = NEWSLETTER_DIR . '/' . $this->module . '/styles';
$handle = @opendir($dir);
if ($handle !== false) {
while ($file = readdir($handle)) {
if ($file == '.' || $file == '..')
continue;
if (substr($file, -4) != '.css')
continue;
$list[$file] = substr($file, 0, strlen($file) - 4);
}
closedir($handle);
}
$dir = WP_CONTENT_DIR . '/extensions/newsletter/' . $this->module . '/styles';
if (is_dir($dir)) {
$handle = @opendir($dir);
if ($handle !== false) {
while ($file = readdir($handle)) {
if ($file == '.' || $file == '..')
continue;
if (isset($list[$file]))
continue;
if (substr($file, -4) != '.css')
continue;
$list[$file] = substr($file, 0, strlen($file) - 4);
}
closedir($handle);
}
}
return $list;
}
function get_style_url($style) {
if (is_file(WP_CONTENT_DIR . '/extensions/newsletter/' . $this->module . '/styles/' . $style))
return WP_CONTENT_URL . '/extensions/newsletter/' . $this->module . '/styles/' . $style;
else
return plugins_url('newsletter') . '/' . $this->module . '/styles/' . $style;
}
function admin_menu() {
}
function add_menu_page($page, $title, $capability = '') {
global $newsletter;
$name = 'newsletter_' . $this->module . '_' . $page;
if (empty($capability)) {
$capability = ($newsletter->options['editor'] == 1) ? 'manage_categories' : 'manage_options';
}
add_submenu_page('newsletter_main_index', $title, $title, $capability, $name, array($this, 'menu_page'));
}
function add_admin_page($page, $title, $capability = '') {
if (empty($capability)) {
$newsletter = Newsletter::instance();
$capability = ($newsletter->options['editor'] == 1) ? 'manage_categories' : 'manage_options';
}
$name = 'newsletter_' . $this->module . '_' . $page;
$name = apply_filters('newsletter_admin_page', $name);
add_submenu_page(null, $title, $title, $capability, $name, array($this, 'menu_page'));
}
function sanitize_file_name($name) {
return preg_replace('/[^a-z_\\-]/i', '', $name);
}
function menu_page() {
global $plugin_page, $newsletter, $wpdb;
$parts = explode('_', $plugin_page, 3);
$module = $this->sanitize_file_name($parts[1]);
$page = $this->sanitize_file_name($parts[2]);
$page = str_replace('_', '-', $page);
$file = WP_CONTENT_DIR . '/extensions/newsletter/' . $module . '/' . $page . '.php';
if (!is_file($file)) {
$file = NEWSLETTER_DIR . '/' . $module . '/' . $page . '.php';
}
require $file;
}
function get_admin_page_url($page) {
return admin_url('admin.php') . '?page=newsletter_' . $this->module . '_' . $page;
}
/** Returns all the emails of the give type (message, feed, followup, ...) and in the given format
* (default as objects). Return false on error or at least an empty array. Errors should never
* occur.
*
* @global wpdb $wpdb
* @param string $type
* @return boolean|array
*/
function get_emails($type = null, $format = OBJECT) {
global $wpdb;
if ($type == null) {
$list = $wpdb->get_results("select * from " . NEWSLETTER_EMAILS_TABLE . " order by id desc", $format);
} else {
$type = (string) $type;
$list = $wpdb->get_results($wpdb->prepare("select * from " . NEWSLETTER_EMAILS_TABLE . " where type=%s order by id desc", $type), $format);
}
if ($wpdb->last_error) {
$this->logger->error($wpdb->last_error);
return false;
}
if (empty($list)) {
return array();
}
return $list;
}
/**
* Retrieves an email from DB and unserialize the options.
*
* @param mixed $id
* @param string $format
*/
function get_email($id, $format = OBJECT) {
$email = $this->store->get_single(NEWSLETTER_EMAILS_TABLE, $id, $format);
if (!$email) {
return null;
}
if ($format == OBJECT) {
$email->options = maybe_unserialize($email->options);
if (!is_array($email->options)) {
$email->options = array();
}
if (empty($email->query)) {
$email->query = "select * from " . NEWSLETTER_USERS_TABLE . " where status='C'";
}
} else if ($format == ARRAY_A) {
$email['options'] = maybe_unserialize($email['options']);
if (!is_array($email['options'])) {
$email['options'] = array();
}
if (empty($email['query'])) {
$email['query'] = "select * from " . NEWSLETTER_USERS_TABLE . " where status='C'";
}
}
return $email;
}
/**
* Save an email and provide serialization, if needed, of $email['options'].
*/
function save_email($email, $return_format = OBJECT) {
if (is_object($email)) {
$email = (array) $email;
}
if (isset($email['subject'])) {
if (mb_strlen($email['subject'], 'UTF-8') > 250) {
$email['subject'] = mb_substr($email['subject'], 0, 250, 'UTF-8');
}
}
if (isset($email['options']) && is_array($email['options'])) {
$email['options'] = serialize($email['options']);
}
$email = $this->store->save(NEWSLETTER_EMAILS_TABLE, $email, $return_format);
if ($return_format == OBJECT) {
$email->options = maybe_unserialize($email->options);
if (!is_array($email->options))
$email->options = array();
} else if ($return_format == ARRAY_A) {
$email['options'] = maybe_unserialize($email['options']);
if (!is_array($email['options']))
$email['options'] = array();
}
return $email;
}
function get_email_from_request() {
if (isset($_REQUEST['nek'])) {
list($id, $token) = @explode('-', $_REQUEST['nek'], 2);
} else {
return null;
}
$email = $this->get_email($id);
return $email;
}
function delete_email($id) {
global $wpdb;
$r = $this->store->delete(NEWSLETTER_EMAILS_TABLE, $id);
if ($r !== false) {
$wpdb->delete(NEWSLETTER_STATS_TABLE, array('email_id' => $id));
$wpdb->delete(NEWSLETTER_SENT_TABLE, array('email_id' => $id));
}
return $r;
}
function get_email_field($id, $field_name) {
return $this->store->get_field(NEWSLETTER_EMAILS_TABLE, $id, $field_name);
}
function get_email_status_label($email) {
switch ($email->status) {
case 'sending':
if ($email->send_on > time()) {
return __('Scheduled', 'newsletter');
} else {
return __('Sending', 'newsletter');
}
case 'sent':
return __('Sent', 'newsletter');
case 'paused':
return __('Paused', 'newsletter');
case 'new':
return __('Draft', 'newsletter');
default:
return ucfirst($email->status);
}
}
function get_email_type_label($type) {
// Is an email?
if (is_object($type))
$type = $type->type;
$label = apply_filters('newsletter_email_type', '', $type);
if (!empty($label))
return $label;
switch ($type) {
case 'followup':
return 'Followup';
case 'message':
return 'Standard Newsletter';
case 'feed':
return 'Feed by Mail';
}
if (strpos($type, 'automated') === 0) {
list($a, $id) = explode('_', $type);
return 'Automated Channel ' . $id;
}
return ucfirst($type);
}
function get_email_progress_label($email) {
if ($email->status == 'sent' || $email->status == 'sending') {
return $email->sent . ' ' . __('of', 'newsletter') . ' ' . $email->total;
}
return '-';
}
/**
* Returns the email unique key
* @param TNP_User $user
* @return string
*/
function get_email_key($email) {
if (!isset($email->token)) {
return $email->id . '-';
}
return $email->id . '-' . $email->token;
}
/** Searches for a user using the nk parameter or the ni and nt parameters. Tries even with the newsletter cookie.
* If found, the user object is returned or null.
* The user is returned without regards to his status that should be checked by caller.
*
* @return TNP_User
*/
function check_user() {
global $wpdb;
$user = null;
if (isset($_REQUEST['nk'])) {
list($id, $token) = @explode('-', $_REQUEST['nk'], 2);
} else if (isset($_COOKIE['newsletter'])) {
list ($id, $token) = @explode('-', $_COOKIE['newsletter'], 2);
}
if (isset($id)) {
$user = $this->get_user($id);
if ($token != $user->token) {
$user = null;
}
}
if ($user == null && is_user_logged_in()) {
$user = $this->get_user_by_wp_user_id(get_current_user_id());
}
return $user;
}
/** Returns the user identify by an id or an email. If $id_or_email is an object or an array, it is assumed it contains
* the "id" attribute or key and that is used to load the user.
*
* @global type $wpdb
* @param string|int|object|array $id_or_email
* @param string $format
* @return TNP_User
*/
function get_user($id_or_email, $format = OBJECT) {
global $wpdb;
if (empty($id_or_email))
return null;
// To simplify the reaload of a user passing the user it self.
if (is_object($id_or_email)) {
$id_or_email = $id_or_email->id;
} else if (is_array($id_or_email)) {
$id_or_email = $id_or_email['id'];
}
$id_or_email = strtolower(trim($id_or_email));
if (is_numeric($id_or_email)) {
$r = $wpdb->get_row($wpdb->prepare("select * from " . NEWSLETTER_USERS_TABLE . " where id=%d limit 1", $id_or_email), $format);
} else {
$r = $wpdb->get_row($wpdb->prepare("select * from " . NEWSLETTER_USERS_TABLE . " where email=%s limit 1", $id_or_email), $format);
}
if ($wpdb->last_error) {
$this->logger->error($wpdb->last_error);
return null;
}
return $r;
}
/**
* Returns the user unique key
* @param TNP_User $user
* @return string
*/
function get_user_key($user) {
return $user->id . '-' . $user->token;
}
/**
* Return the user identified by the "nk" parameter (POST or GET).
* If no user can be found or the token is not matching, returns null.
* If die_on_fail is true it dies instead of return null.
*
* @param bool $die_on_fail
* @return TNP_User
*/
function get_user_from_request($die_on_fail = false) {
$id = 0;
if (isset($_REQUEST['nk'])) {
list($id, $token) = @explode('-', $_REQUEST['nk'], 2);
}
$user = $this->get_user($id);
if ($user == null || $token != $user->token) {
if ($die_on_fail) {
die(__('No subscriber found.', 'newsletter'));
} else {
return null;
}
}
return $user;
}
/**
* @param string $language The language for the list labels (it does not affect the lists returned)
* @return TNP_Profile[]
*/
function get_profiles($language = '') {
static $profiles = array();
if (isset($profiles[$language])) {
return $profiles[$language];
}
$profiles[$language] = array();
$data = NewsletterSubscription::instance()->get_options('profile', $language);
for ($i = 1; $i <= NEWSLETTER_PROFILE_MAX; $i++) {
if (empty($data['profile_' . $i])) {
continue;
}
$profile = new stdClass();
$profile->name = $data['profile_' . $i];
$profile->id = $i;
$profile->status = (int) $data['profile_' . $i . '_status'];
$profiles[$language][] = $profile;
}
return $profiles[$language];
}
/**
* @param string $language The language for the list labels (it does not affect the lists returned)
* @return TNP_List[]
*/
function get_lists($language = '') {
static $lists = array();
if (isset($lists[$language])) {
return $lists[$language];
}
$lists[$language] = array();
$data = NewsletterSubscription::instance()->get_options('lists', $language);
for ($i = 1; $i <= NEWSLETTER_LIST_MAX; $i++) {
if (empty($data['list_' . $i])) {
continue;
}
$list = new stdClass();
$list->name = $data['list_' . $i];
$list->id = $i;
$list->forced = !empty($data['list_' . $i . '_forced']);
$list->status = (int) $data['list_' . $i . '_status'];
$list->checked = !empty($data['list_' . $i . '_checked']);
if (empty($data['list_' . $i . '_languages'])) {
$list->languages = array();
} else {
$list->languages = $data['list_' . $i . '_languages'];
}
$lists[$language][] = $list;
}
return $lists[$language];
}
/**
*
* @return TNP_List[]
*/
function get_lists_public($language = '') {
static $lists = array();
if (isset($lists[$language])) {
return $lists[$language];
}
$lists[$language] = array();
$all = $this->get_lists($language);
foreach ($all as $list) {
if ($list->status == TNP_List::STATUS_PRIVATE) {
continue;
}
$lists[$language][] = $list;
}
return $lists[$language];
}
/**
* Lists to be shown on subscription form.
*
* @return TNP_List[]
*/
function get_lists_for_subscription($language = '') {
static $lists = array();
if (isset($lists[$language])) {
return $lists[$language];
}
$lists[$language] = array();
$all = $this->get_lists($language);
foreach ($all as $list) {
if ($list->status != TNP_List::STATUS_PUBLIC || $list->forced) {
continue;
}
$lists[$language][] = $list;
}
return $lists[$language];
}
/**
* Returns the lists to be shown in the profile page.
*
* @return TNP_List[]
*/
function get_lists_for_profile($language = '') {
static $lists = array();
if (isset($lists[$language])) {
return $lists[$language];
}
$lists[$language] = array();
$all = $this->get_lists($language);
foreach ($all as $list) {
if ($list->status == TNP_List::STATUS_PRIVATE || $list->status == TNP_List::STATUS_HIDDEN) {
continue;
}
$lists[$language][] = $list;
}
return $lists[$language];
}
/**
* Returns a list as an object (with the same signature of TNP_List)
*
* @param int $id
* @return TNP_List
*/
function get_list($id, $language = '') {
$id = (int) $id;
if (!$id) {
return null;
}
$data = NewsletterSubscription::instance()->get_options('lists', $language);
$list = new stdClass();
$list->name = $data['list_' . $id];
$list->id = $id;
$list->forced = !empty($data['list_' . $id . '_forced']);
$list->status = (int) $data['list_' . $id . '_status'];
$list->checked = !empty($data['list_' . $id . '_checked']);
return $list;
}
/**
* NEVER CHANGE THIS METHOD SIGNATURE, USER BY THIRD PARTY PLUGINS.
*
* Saves a new user on the database. Return false if the email (that must be unique) is already
* there. For a new users set the token and creation time if not passed.
*
* @param array $user
* @return TNP_User|array|boolean Returns the subscriber reloaded from DB in the specified format. Flase on failure (duplicate email).
*/
function save_user($user, $return_format = OBJECT) {
if (is_object($user)) {
$user = (array) $user;
}
if (empty($user['id'])) {
$existing = $this->get_user($user['email']);
if ($existing != null) {
return false;
}
if (empty($user['token'])) {
$user['token'] = NewsletterModule::get_token();
}
}
// Due to the unique index on email field, this can fail.
return $this->store->save(NEWSLETTER_USERS_TABLE, $user, $return_format);
}
/**
* Updates the user last activity timestamp.
*
* @global wpdb $wpdb
* @param TNP_User $user
*/
function update_user_last_activity($user) {
global $wpdb;
$this->query($wpdb->prepare("update " . NEWSLETTER_USERS_TABLE . " set last_activity=%d where id=%d limit 1", time(), $user->id));
}
function update_user_ip($user, $ip) {
global $wpdb;
// Only if changed
$r = $this->query($wpdb->prepare("update " . NEWSLETTER_USERS_TABLE . " set ip=%s, geo=0 where ip<>%s and id=%d limit 1", $ip, $ip, $user->id));
}
/**
* Finds single style blocks and adds a style attribute to every HTML tag with a class exactly matching the rules in the style
* block. HTML tags can use the attribute "inline-class" to exact match a style rules if they need a composite class definition.
*
* @param string $content
* @param boolean $strip_style_blocks
* @return string
*/
function inline_css($content, $strip_style_blocks = false) {
// CSS
$matches = array();
// "s" skips line breaks
$styles = preg_match('|<style>(.*?)</style>|s', $content, $matches);
if (isset($matches[1])) {
$style = str_replace(array("\n", "\r"), '', $matches[1]);
$rules = array();
preg_match_all('|\s*\.(.*?)\{(.*?)\}\s*|s', $style, $rules);
//print_r($rules);
for ($i = 0; $i < count($rules[1]); $i++) {
$class = trim($rules[1][$i]);
$value = trim($rules[2][$i]);
$value = preg_replace('|\s+|', ' ', $value);
$content = str_replace('class="' . $class . '"', 'class="' . $class . '" style="' . $value . '"', $content);
$content = str_replace('inline-class="' . $class . '"', 'style="' . $value . '"', $content);
}
}
if ($strip_style_blocks) {
return trim(preg_replace('|<style>.*?</style>|s', '', $content));
} else {
return $content;
}
}
/**
* Returns a list of users marked as "test user".
* @return TNP_User[]
*/
function get_test_users() {
return $this->store->get_all(NEWSLETTER_USERS_TABLE, "where test=1");
}
/**
* Deletes a subscriber and cleans up all the stats table with his correlated data.
*
* @global wpdb $wpdb
* @param int $id
*/
function delete_user($id) {
global $wpdb;
$user = $this->get_user($id);
if ($user) {
$r = $this->store->delete(NEWSLETTER_USERS_TABLE, $id);
do_action('newsletter_user_deleted', $user);
}
// Anyway try a table clean up, nothing bad happens
$wpdb->delete(NEWSLETTER_STATS_TABLE, array('user_id' => $id));
$wpdb->delete(NEWSLETTER_SENT_TABLE, array('user_id' => $id));
}
/**
* Add to a destination URL the parameters to identify the user, the email and to show
* an alert message, if required. The parameters are then managed by the [newsletter] shortcode.
*
* @param string $url If empty the standard newsletter page URL is used (usually it is empty, but sometime a custom URL has been specified)
* @param string $message_key The message identifier
* @param TNP_User|int $user
* @param TNP_Email|int $email
* @param string $alert An optional alter message to be shown. Does not work with custom URLs
* @return string The final URL with parameters
*/
function build_message_url($url = '', $message_key = '', $user = null, $email = null, $alert = '') {
$params = 'nm=' . urlencode($message_key);
$language = '';
if ($user) {
if (!is_object($user)) {
$user = $this->get_user($user);
}
$params .= '&nk=' . urlencode($this->get_user_key($user));
$language = $this->get_user_language($user);
}
if ($email) {
if (!is_object($email)) {
$email = $this->get_email($email);
}
$params .= '&nek=' . urlencode($this->get_email_key($email));
}
if ($alert) {
$params .= '&alert=' . urlencode($alert);
}
if (empty($url)) {
$url = Newsletter::instance()->get_newsletter_page_url($language);
}
return self::add_qs($url, $params, false);
}
/**
* Builds a standard Newsletter action URL for the specified action.
*
* @param string $action
* @param TNP_User $user
* @param TNP_Email $email
* @return string
*/
function build_action_url($action, $user = null, $email = null) {
$url = $this->add_qs($this->get_home_url(), 'na=' . urlencode($action));
if ($user) {
$url .= '&nk=' . urlencode($this->get_user_key($user));
}
if ($email) {
$url .= '&nek=' . urlencode($this->get_email_key($email));
}
return $url;
}
function get_subscribe_url() {
return $this->build_action_url('s');
}
function clean_stats_table() {
global $wpdb;
$this->logger->info('Cleaning up stats table');
$this->query("delete s from `{$wpdb->prefix}newsletter_stats` s left join `{$wpdb->prefix}newsletter` u on s.user_id=u.id where u.id is null");
$this->query("delete s from `{$wpdb->prefix}newsletter_stats` s left join `{$wpdb->prefix}newsletter_emails` e on s.email_id=e.id where e.id is null");
}
function clean_sent_table() {
global $wpdb;
$this->logger->info('Cleaning up sent table');
$this->query("delete s from `{$wpdb->prefix}newsletter_sent` s left join `{$wpdb->prefix}newsletter` u on s.user_id=u.id where u.id is null");
$this->query("delete s from `{$wpdb->prefix}newsletter_sent` s left join `{$wpdb->prefix}newsletter_emails` e on s.email_id=e.id where e.id is null");
}
function clean_user_logs_table() {
//global $wpdb;
}
function clean_tables() {
$this->clean_sent_table();
$this->clean_stats_table();
$this->clean_user_logs_table();
}
function anonymize_ip($ip) {
if (empty($ip)) {
return $ip;
}
$parts = explode('.', $ip);
array_pop($parts);
return implode('.', $parts) . '.0';
}
function process_ip($ip) {
$option = Newsletter::instance()->options['ip'];
if (empty($option)) {
return $ip;
}
if ($option == 'anonymize') {
return $this->anonymize_ip($ip);
}
return '';
}
function anonymize_user($id) {
global $wpdb;
$user = $this->get_user($id);
if (!$user) {
return null;
}
$user->name = '';
$user->surname = '';
$user->ip = $this->anonymize_ip($user->ip);
for ($i = 1; $i <= NEWSLETTER_PROFILE_MAX; $i++) {
$field = 'profile_' . $i;
$user->$field = '';
}
// [TODO] Status?
$user->status = TNP_User::STATUS_UNSUBSCRIBED;
$user->email = $user->id . '@anonymi.zed';
$user = $this->save_user($user);
return $user;
}
/**
* Changes a user status. Accept a user object, user id or user email.
*
* @param TNP_User $user
* @param string $status
* @return TNP_User
*/
function set_user_status($user, $status) {
global $wpdb;
$this->logger->debug('Status change to ' . $status . ' of subscriber ' . $user->id . ' from ' . $_SERVER['REQUEST_URI']);
$this->query($wpdb->prepare("update " . NEWSLETTER_USERS_TABLE . " set status=%s where id=%d limit 1", $status, $user->id));
return $this->get_user($user);
}
/**
*
* @global wpdb $wpdb
* @param TNP_User $user
* @return TNP_User
*/
function refresh_user_token($user) {
global $wpdb;
$token = $this->get_token();
$this->query($wpdb->prepare("update " . NEWSLETTER_USERS_TABLE . " set token=%s where id=%d limit 1", $token, $user->id));
return $this->get_user($user);
}
/**
* Create a log entry with the meaningful user data.
*
* @global wpdb $wpdb
* @param TNP_User $user
* @param string $source
* @return type
*/
function add_user_log($user, $source = '') {
global $wpdb;
$lists = $this->get_lists_public();
foreach ($lists as $list) {
$field_name = 'list_' . $list->id;
$data[$field_name] = $user->$field_name;
}
$data['status'] = $user->status;
$ip = $this->get_remote_ip();
$ip = $this->process_ip($ip);
$this->store->save($wpdb->prefix . 'newsletter_user_logs', array('ip' => $ip, 'user_id' => $user->id, 'source' => $source, 'created' => time(), 'data' => json_encode($data)));
}
/**
*
* @global wpdb $wpdb
* @param TNP_User $user
* @param int $list
* @param type $value
*/
function set_user_list($user, $list, $value) {
global $wpdb;
$list = (int) $list;
$value = $value ? 1 : 0;
$r = $wpdb->update(NEWSLETTER_USERS_TABLE, array('list_' . $list => $value), array('id' => $user->id));
}
function set_user_field($id, $field, $value) {
$this->store->set_field(NEWSLETTER_USERS_TABLE, $id, $field, $value);
}
function set_user_wp_user_id($user_id, $wp_user_id) {
$this->store->set_field(NEWSLETTER_USERS_TABLE, $user_id, 'wp_user_id', $wp_user_id);
}
/**
*
* @param int $wp_user_id
* @param string $format
* @return TNP_User
*/
function get_user_by_wp_user_id($wp_user_id, $format = OBJECT) {
return $this->store->get_single_by_field(NEWSLETTER_USERS_TABLE, 'wp_user_id', $wp_user_id, $format);
}
/**
* Returns the user language IF there is a supported mutilanguage plugin installed.
* @param TNP_User $user
* @return string Language code or empty
*/
function get_user_language($user) {
if ($user && $this->is_multilanguage()) {
return $user->language;
}
return '';
}
/**
* Replaces every possible Newsletter tag ({...}) in a piece of text or HTML.
*
* @global wpdb $wpdb
* @param string $text
* @param mixed $user Can be an object, associative array or id
* @param mixed $email Can be an object, associative array or id
* @param type $referrer
* @return type
*/
function replace($text, $user = null, $email = null, $referrer = null) {
global $wpdb;
static $home_url = false;
if (!$home_url) {
$home_url = home_url('/');
}
//$this->logger->debug('Replace start');
if ($user !== null && !is_object($user)) {
if (is_array($user)) {
$user = (object) $user; //$this->get_user($user['id']);
} else if (is_numeric($user)) {
$user = $this->get_user($user);
} else {
$user = null;
}
}
if ($email !== null && !is_object($email)) {
if (is_array($email)) {
$email = (object) $email; //$this->get_user($user['id']);
} else if (is_numeric($email)) {
$email = $this->get_email($email);
} else {
$email = null;
}
}
$text = apply_filters('newsletter_replace', $text, $user, $email);
$text = $this->replace_url($text, 'BLOG_URL', $home_url);
$text = $this->replace_url($text, 'HOME_URL', $home_url);
$text = str_replace('{blog_title}', get_option('blogname'), $text);
$text = str_replace('{blog_description}', get_option('blogdescription'), $text);
$text = $this->replace_date($text);
if ($user) {
$nk = $this->get_user_key($user);
$options_profile = NewsletterSubscription::instance()->get_options('profile', $this->get_user_language($user));
$text = str_replace('{email}', $user->email, $text);
$name = apply_filters('newsletter_replace_name', $user->name, $user);
if (empty($name)) {
$text = str_replace(' {name}', '', $text);
$text = str_replace('{name}', '', $text);
} else {
$text = str_replace('{name}', $name, $text);
}
switch ($user->sex) {
case 'm': $text = str_replace('{title}', $options_profile['title_male'], $text);
break;
case 'f': $text = str_replace('{title}', $options_profile['title_female'], $text);
break;
case 'n': $text = str_replace('{title}', $options_profile['title_none'], $text);
break;
default:
$text = str_replace('{title}', '', $text);
}
$text = str_replace('{surname}', $user->surname, $text);
$text = str_replace('{last_name}', $user->surname, $text);
$full_name = trim($user->name . ' ' . $user->surname);
if (empty($full_name)) {
$text = str_replace(' {full_name}', '', $text);
$text = str_replace('{full_name}', '', $text);
} else {
$text = str_replace('{full_name}', $full_name, $text);
}
$text = str_replace('{token}', $user->token, $text);
$text = str_replace('%7Btoken%7D', $user->token, $text);
$text = str_replace('{id}', $user->id, $text);
$text = str_replace('%7Bid%7D', $user->id, $text);
$text = str_replace('{ip}', $user->ip, $text);
$text = str_replace('{key}', $nk, $text);
$text = str_replace('%7Bkey%7D', $nk, $text);
for ($i = 1; $i < NEWSLETTER_PROFILE_MAX; $i++) {
$p = 'profile_' . $i;
$text = str_replace('{profile_' . $i . '}', $user->$p, $text);
}
$base = (empty($this->options_main['url']) ? get_option('home') : $this->options_main['url']);
$id_token = '&ni=' . $user->id . '&nt=' . $user->token;
$nek = false;
if ($email) {
$nek = $this->get_email_key($email);
$text = str_replace('{email_id}', $email->id, $text);
$text = str_replace('{email_key}', $nek, $text);
$text = str_replace('{email_subject}', $email->subject, $text);
$text = $this->replace_url($text, 'EMAIL_URL', $this->build_action_url('v', $user) . '&id=' . $email->id);
}
$text = $this->replace_url($text, 'SUBSCRIPTION_CONFIRM_URL', $this->build_action_url('c', $user));
$text = $this->replace_url($text, 'ACTIVATION_URL', $this->build_action_url('v', $user));
// Obsolete.
$text = $this->replace_url($text, 'FOLLOWUP_SUBSCRIPTION_URL', self::add_qs($base, 'nm=fs' . $id_token));
$text = $this->replace_url($text, 'FOLLOWUP_UNSUBSCRIPTION_URL', self::add_qs($base, 'nm=fu' . $id_token));
$text = $this->replace_url($text, 'UNLOCK_URL', $this->build_action_url('ul', $user));
} else {
$text = $this->replace_url($text, 'SUBSCRIPTION_CONFIRM_URL', '#');
$text = $this->replace_url($text, 'ACTIVATION_URL', '#');
$text = $this->replace_url($text, 'UNSUBSCRIPTION_CONFIRM_URL', '#');
$text = $this->replace_url($text, 'UNSUBSCRIPTION_URL', '#');
}
if (strpos($text, '{subscription_form}') !== false) {
$text = str_replace('{subscription_form}', NewsletterSubscription::instance()->get_subscription_form($referrer), $text);
} else {
for ($i = 1; $i <= 10; $i++) {
if (strpos($text, "{subscription_form_$i}") !== false) {
$text = str_replace("{subscription_form_$i}", NewsletterSubscription::instance()->get_form($i), $text);
break;
}
}
}
// Company info
// TODO: Move to another module
$options = Newsletter::instance()->options;
$text = str_replace('{company_address}', $options['footer_contact'], $text);
$text = str_replace('{company_name}', $options['footer_title'], $text);
//$this->logger->debug('Replace end');
return $text;
}
function replace_date($text) {
$text = str_replace('{date}', date_i18n(get_option('date_format')), $text);
// Date processing
$x = 0;
while (($x = strpos($text, '{date_', $x)) !== false) {
$y = strpos($text, '}', $x);
if ($y === false)
continue;
$f = substr($text, $x + 6, $y - $x - 6);
$text = substr($text, 0, $x) . date_i18n($f) . substr($text, $y + 1);
}
return $text;
}
function replace_url($text, $tag, $url) {
static $home = false;
if (!$home) {
$home = trailingslashit(home_url());
}
$tag_lower = strtolower($tag);
$text = str_replace('http://{' . $tag_lower . '}', $url, $text);
$text = str_replace('https://{' . $tag_lower . '}', $url, $text);
$text = str_replace($home . '{' . $tag_lower . '}', $url, $text);
$text = str_replace($home . '%7B' . $tag_lower . '%7D', $url, $text);
$text = str_replace('{' . $tag_lower . '}', $url, $text);
$text = str_replace('%7B' . $tag_lower . '%7D', $url, $text);
$url_encoded = urlencode($url);
$text = str_replace('%7B' . $tag_lower . '_encoded%7D', $url_encoded, $text);
$text = str_replace('{' . $tag_lower . '_encoded}', $url_encoded, $text);
// for compatibility
$text = str_replace($home . $tag, $url, $text);
return $text;
}
public static function antibot_form_check($captcha = false) {
if (strtolower($_SERVER['REQUEST_METHOD']) != 'post') {
return false;
}
if (!isset($_POST['ts']) || time() - $_POST['ts'] > 60) {
return false;
}
if ($captcha) {
$n1 = (int) $_POST['n1'];
if (empty($n1)) {
return false;
}
$n2 = (int) $_POST['n2'];
if (empty($n2)) {
return false;
}
$n3 = (int) $_POST['n3'];
if ($n1 + $n2 != $n3) {
return false;
}
}
return true;
}
public static function request_to_antibot_form($submit_label = 'Continue...', $captcha = false) {
header('Content-Type: text/html;charset=UTF-8');
header('X-Robots-Tag: noindex,nofollow,noarchive');
header('Cache-Control: no-cache,no-store,private');
echo "<!DOCTYPE html>\n";
echo '<html><head>'
. '<style type="text/css">'
. '.tnp-captcha {text-align: center; margin: 200px auto 0 auto !important; max-width: 300px !important; padding: 10px !important; font-family: "Open Sans", sans-serif; background: #ECF0F1; border-radius: 5px; padding: 50px !important; border: none !important;}'
. 'p {text-align: center; padding: 10px; color: #7F8C8D;}'
. 'input[type=text] {width: 50px; padding: 10px 10px; border: none; border-radius: 2px; margin: 0px 5px;}'
. 'input[type=submit] {text-align: center; border: none; padding: 10px 15px; font-family: "Open Sans", sans-serif; background-color: #27AE60; color: white; cursor: pointer;}'
. '</style>'
. '</head><body>';
echo '<form method="post" action="https://www.domain.tld" id="form">';
echo '<div style="width: 1px; height: 1px; overflow: hidden">';
foreach ($_REQUEST as $name => $value) {
if ($name == 'submit')
continue;
if (is_array($value)) {
foreach ($value as $element) {
echo '<input type="text" name="';
echo esc_attr($name);
echo '[]" value="';
echo esc_attr(stripslashes($element));
echo '">';
}
} else {
echo '<input type="hidden" name="', esc_attr($name), '" value="', esc_attr(stripslashes($value)), '">';
}
}
if (isset($_SERVER['HTTP_REFERER'])) {
echo '<input type="hidden" name="nhr" value="' . esc_attr($_SERVER['HTTP_REFERER']) . '">';
}
echo '<input type="hidden" name="ts" value="' . time() . '">';
echo '</div>';
if ($captcha) {
echo '<div class="tnp-captcha">';
echo '<p>', __('Math question', 'newsletter'), '</p>';
echo '<input type="text" name="n1" value="', rand(1, 9), '" readonly style="width: 50px">';
echo '+';
echo '<input type="text" name="n2" value="', rand(1, 9), '" readonly style="width: 50px">';
echo '=';
echo '<input type="text" name="n3" value="?" style="width: 50px">';
echo '<br><br>';
echo '<input type="submit" value="', esc_attr($submit_label), '">';
echo '</div>';
}
echo '<noscript><input type="submit" value="';
echo esc_attr($submit_label);
echo '"></noscript></form>';
echo '<script>';
echo 'document.getElementById("form").action="' . home_url('/') . '";';
if (!$captcha) {
echo 'document.getElementById("form").submit();';
}
echo '</script>';
echo '</body></html>';
die();
}
static function extract_body($html) {
$x = stripos($html, '<body');
if ($x !== false) {
$x = strpos($html, '>', $x);
$y = strpos($html, '</body>');
return substr($html, $x + 1, $y - $x - 1);
} else {
return $html;
}
}
/** Returns a percentage as string */
static function percent($value, $total) {
if ($total == 0)
return '-';
return sprintf("%.2f", $value / $total * 100) . '%';
}
/** Returns a percentage as integer value */
static function percentValue($value, $total) {
if ($total == 0)
return 0;
return round($value / $total * 100);
}
static function to_int_id($var) {
if (is_object($var)) {
return (int) $var->id;
}
if (is_array($var)) {
return (int) $var['id'];
}
return (int) $var;
}
static function sanitize_ip($ip) {
if (empty($ip))
return '';
return preg_replace('/[^0-9a-fA-F:., ]/', '', $ip);
}
static function get_remote_ip() {
return self::sanitize_ip($_SERVER['REMOTE_ADDR']);
}
static function get_signature($text) {
$key = NewsletterStatistics::instance()->options['key'];
return md5($text . $key);
}
static function check_signature($text, $signature) {
if (empty($signature))
return false;
$key = NewsletterStatistics::instance()->options['key'];
return md5($text . $key) === $signature;
}
static function get_home_url() {
static $url = false;
if (!$url) {
$url = home_url('/');
}
return $url;
}
/**
* Return the current language code. Optionally, if a user is passed and it has a language
* the user language is returned.
* If there is no language available, an empty string is returned.
*
* @param TNP_User $user
* @return string The language code
*/
function get_current_language($user = null) {
global $TRP_LANGUAGE, $current_user;
// TODO: Check if the blog is multilanguage?
if ($user && $user->language) {
return $user->language;
}
if (class_exists('SitePress')) {
$current_language = apply_filters('wpml_current_language', '');
if ($current_language == 'all') {
$current_language = '';
}
return $current_language;
}
if (function_exists('pll_current_language')) {
return pll_current_language();
}
$current_language = apply_filters('newsletter_current_language', '');
return $current_language;
}
function get_default_language() {
if (class_exists('SitePress')) {
return $current_language = apply_filters('wpml_current_language', '');
} else if (function_exists('pll_default_language')) {
return pll_default_language();
} else if (class_exists('TRP_Translate_Press')) {
// TODO: Find the default language
}
return '';
}
function is_all_languages() {
return $this->get_current_language() == '';
}
function is_default_language() {
return $this->get_current_language() == $this->get_default_language();
}
/**
* Returns an array of languages with key the language code and value the language name.
* An empty array is returned if no language is available.
*/
function get_languages() {
$language_options = array();
if (class_exists('SitePress')) {
$languages = apply_filters('wpml_active_languages', null);
foreach ($languages as $language) {
$language_options[$language['language_code']] = $language['translated_name'];
}
return $language_options;
} else if (function_exists('icl_get_languages')) {
$languages = icl_get_languages();
foreach ($languages as $code => $language) {
$language_options[$code] = $language['native_name'];
}
return $language_options;
}
return apply_filters('newsletter_languages', $language_options);
}
function get_language_label($language) {
$languages = $this->get_languages();
if (isset($languages[$language]))
return $languages[$language];
return '';
}
function switch_language($language) {
if (class_exists('SitePress')) {
if (empty($language))
$language = 'all';
do_action('wpml_switch_language', $language);
return;
}
}
function is_multilanguage() {
return class_exists('SitePress') || function_exists('pll_default_language') || class_exists('TRP_Translate_Press');
}
function get_posts($filters = array(), $language = '') {
$current_language = $this->get_current_language();
// Language switch for WPML
if ($language) {
if (class_exists('SitePress')) {
$this->switch_language($language);
$filters['suppress_filters'] = false;
}
if (class_exists('Polylang')) {
$filters['lang'] = $language;
}
}
$posts = get_posts($filters);
if ($language) {
if (class_exists('SitePress')) {
$this->switch_language($current_language);
}
}
return $posts;
}
}
/**
* Kept for compatibility.
*
* @param type $post_id
* @param type $size
* @param type $alternative
* @return type
*/
function nt_post_image($post_id = null, $size = 'thumbnail', $alternative = null) {
return NewsletterModule::get_post_image($post_id, $size, $alternative);
}
function newsletter_get_post_image($post_id = null, $size = 'thumbnail', $alternative = null) {
echo NewsletterModule::get_post_image($post_id, $size, $alternative);
}
/**
* Accepts a post or a post ID.
*
* @param WP_Post $post
*/
function newsletter_the_excerpt($post, $words = 30) {
$post = get_post($post);
$excerpt = $post->post_excerpt;
if (empty($excerpt)) {
$excerpt = $post->post_content;
$excerpt = strip_shortcodes($excerpt);
$excerpt = wp_strip_all_tags($excerpt, true);
}
echo '<p>' . wp_trim_words($excerpt, $words) . '</p>';
}
Cyb3r Drag0nz Team • Google Edition