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<?php
if (! class_exists ( 'PostmanWpMailBinder' )) {
class PostmanWpMailBinder {
private $logger;
public $bound;
private $bindError;
/**
* private singleton constructor
*/
private function __construct() {
$this->logger = new PostmanLogger ( get_class ( $this ) );
// load the dependencies
require_once 'PostmanWpMail.php';
require_once 'PostmanOptions.php';
require_once 'PostmanPreRequisitesCheck.php';
// register the bind status hook
add_filter ( 'postman_wp_mail_bind_status', array (
$this,
'postman_wp_mail_bind_status'
) );
}
/**
* Return the Singleton instance
*
* @return PostmanWpMailBinder
*/
public static function getInstance() {
static $inst = null;
if ($inst === null) {
$inst = new PostmanWpMailBinder ();
}
return $inst;
}
/**
* Returns the bind result
*/
public function postman_wp_mail_bind_status() {
$result = array (
'bound' => $this->bound,
'bind_error' => $this->bindError
);
return $result;
}
/**
* Important: bind() may be called multiple times
*
* Replace wp_mail() after making sure:
* 1) the plugin has not already bound to wp_mail and
* 2) wp_mail is available for use
* 3) the plugin is properly configured.
* 4) the plugin's prerequisites are met.
*/
function bind() {
if (! $this->bound) {
$ready = true;
if (function_exists ( 'wp_mail' )) {
// If the function exists, it's probably because another plugin has
// replaced the pluggable function first, and we set an error flag.
// this is an error message because it is a Bind error
if ($this->logger->isTrace ()) {
$this->logger->trace ( 'wp_mail is already bound, Postman can not use it' );
}
$this->bindError = true;
$ready = false;
}
if (! PostmanPreRequisitesCheck::isReady ()) {
// this is a debug message because it is not up to the Binder to report transport errors
if ($this->logger->isTrace ()) {
$this->logger->trace ( 'Prerequisite check failed' );
}
$ready = false;
}
if ($ready) {
if ($this->logger->isTrace ()) {
$this->logger->trace ( 'Binding to wp_mail()' );
}
$this->replacePluggableFunctionWpMail ();
}
}
}
/**
* The code to replace the pluggable wp_mail()
*
* If the function does not exist, then the replacement was successful
* and we set a success flag.
*/
private function replacePluggableFunctionWpMail() {
/**
* The Postman drop-in replacement for the WordPress wp_mail() function
*
* @param string|array $to
* Array or comma-separated list of email addresses to send message.
* @param string $subject
* Email subject
* @param string $message
* Message contents
* @param string|array $headers
* Optional. Additional headers.
* @param string|array $attachments
* Optional. Files to attach.
* @return bool Whether the email contents were sent successfully.
*/
function wp_mail($to, $subject, $message, $headers = '', $attachments = array()) {
// create an instance of PostmanWpMail to send the message
$postmanWpMail = new PostmanWpMail ();
// send the mail
$result = $postmanWpMail->send ( $to, $subject, $message, $headers, $attachments );
// return the result
return $result;
}
$this->logger->debug ( 'Bound to wp_mail()' );
$this->bound = true;
}
public function isBound() {
return $this->bound;
}
public function isUnboundDueToException() {
return $this->bindError;
}
}
}
|
