From ba562f0486c8e1de6545b7677ee46e541801f123 Mon Sep 17 00:00:00 2001
From: Andy Miller <rhuk@mac.com>
Date: Sat, 20 May 2017 22:16:53 -0600
Subject: [PATCH] Added Utils::getPagePathFromToken()

---
 system/src/Grav/Common/Utils.php | 52 ++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/system/src/Grav/Common/Utils.php b/system/src/Grav/Common/Utils.php
index 8ceddd366..6c8898103 100644
--- a/system/src/Grav/Common/Utils.php
+++ b/system/src/Grav/Common/Utils.php
@@ -851,4 +851,56 @@ abstract class Utils
     public static function isApache() {
         return strpos($_SERVER["SERVER_SOFTWARE"], 'Apache') !== false;
     }
+
+    /**
+     * Get's path based on a token
+     *
+     * @param $path
+     * @param null $page
+     * @return string
+     */
+    public static function getPagePathFromToken($path, $page = null)
+    {
+        $path_parts = pathinfo($path);
+        $grav       = Grav::instance();
+
+        $basename = '';
+        if (isset($path_parts['extension'])) {
+            $basename = '/' . $path_parts['basename'];
+            $path     = rtrim($path_parts['dirname'], ':');
+        }
+
+        $regex = '/(@self|self@)|((?:@page|page@):(?:.*))|((?:@theme|theme@):(?:.*))/';
+        preg_match($regex, $path, $matches);
+
+        if ($matches) {
+            if ($matches[1]) {
+                if (is_null($page)) {
+                    throw new \RuntimeException('Page not available for this self@ reference');
+                }
+            } elseif ($matches[2]) {
+                // page@
+                $parts = explode(':', $path);
+                $route = $parts[1];
+                $page  = $grav['page']->find($route);
+            } elseif ($matches[3]) {
+                // theme@
+                $parts = explode(':', $path);
+                $route = $parts[1];
+                $theme = str_replace(ROOT_DIR, '', $grav['locator']->findResource("theme://"));
+
+                return $theme . $route . $basename;
+            }
+        } else {
+            return $path . $basename;
+        }
+
+        if (!$page) {
+            throw new \RuntimeException('Page route not found: ' . $path);
+        }
+
+        $path = str_replace($matches[0], rtrim($page->relativePagePath(), '/'), $path);
+
+        return $path . $basename;
+    }
 }