edit subscription form + save

lib/Util/Url.php

@@ -0,0 +1,55 @@
+<?php
+namespace MailPoet\Util;
+
+class Url {
+  function __construct() {
+  }
+
+  static function getCurrentUrl() {
+    global $wp;
+    return home_url(
+      add_query_arg(
+        $wp->query_string,
+        $wp->request
+      )
+    );
+  }
+
+  static function redirectTo($url = null) {
+    wp_safe_redirect($url);
+    exit();
+  }
+
+  static function redirectBack() {
+    $referer = (isset($_REQUEST['mailpoet_redirect'])
+      ? $_REQUEST['mailpoet_redirect']
+      : null
+    );
+    if($referer === null) {
+      // try to get the server's referer
+      if(!empty($_SERVER['HTTP_REFERER'])) {
+        $referer = $_SERVER['HTTP_REFERER'];
+      }
+    }
+
+    if($referer !== null) {
+      self::redirectTo($referer);
+    }
+    exit();
+  }
+
+  static function redirectWithReferer($url = null) {
+    $current_url = self::getCurrentUrl();
+    $url = add_query_arg(
+      array(
+        'mailpoet_redirect' => urlencode($current_url)
+      ),
+      $url
+    );
+
+    if($url !== $current_url) {
+      self::redirectTo($url);
+    }
+    exit();
+  }
+}