From 8ff20034118183f8671cd233b0d7447dfcfbdfc6 Mon Sep 17 00:00:00 2001
From: Andy Miller <rhuk@mac.com>
Date: Fri, 12 May 2017 14:47:55 -0600
Subject: [PATCH] Added base32/64 encode/decode twig filters

---
 CHANGELOG.md                                  |  1 +
 system/src/Grav/Common/Twig/TwigExtension.php | 50 +++++++++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ee0181f0..c7f7f94c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 
 1. [](#new)
     * Added `Pages::baseUrl()`, `Pages::homeUrl()` and `Pages::url()` functions
+    * Added `base32_encode`, `base32_decode`, `base64_encode`, `base64_decode` Twig filters
     * Added `Debugger::getCaller()` to figure out where the method was called from
     * Added support for custom output providers like Slim Framework
     * Added `Grav\Framework\Collection` classes for creating collections
diff --git a/system/src/Grav/Common/Twig/TwigExtension.php b/system/src/Grav/Common/Twig/TwigExtension.php
index e23d2cfc9..96f26020b 100644
--- a/system/src/Grav/Common/Twig/TwigExtension.php
+++ b/system/src/Grav/Common/Twig/TwigExtension.php
@@ -13,6 +13,7 @@
 use Grav\Common\Markdown\Parsedown;
 use Grav\Common\Markdown\ParsedownExtra;
 use Grav\Common\Uri;
+use Grav\Common\Helpers\Base32;
 use RocketTheme\Toolbox\ResourceLocator\UniformResourceLocator;
 
 class TwigExtension extends \Twig_Extension
@@ -71,6 +72,10 @@ public function getFilters()
             new \Twig_SimpleFilter('ltrim', [$this, 'ltrimFilter']),
             new \Twig_SimpleFilter('markdown', [$this, 'markdownFilter']),
             new \Twig_SimpleFilter('md5', [$this, 'md5Filter']),
+            new \Twig_SimpleFilter('base32_encode', [$this, 'base32EncodeFilter']),
+            new \Twig_SimpleFilter('base32_decode', [$this, 'base32DecodeFilter']),
+            new \Twig_SimpleFilter('base64_encode', [$this, 'base64EncodeFilter']),
+            new \Twig_SimpleFilter('base64_decode', [$this, 'base64DecodeFilter']),
             new \Twig_SimpleFilter('nicetime', [$this, 'nicetimeFilter']),
             new \Twig_SimpleFilter('randomize', [$this, 'randomizeFilter']),
             new \Twig_SimpleFilter('modulus', [$this, 'modulusFilter']),
@@ -274,6 +279,51 @@ public function md5Filter($str)
         return md5($str);
     }
 
+    /**
+     * Return Base32 encoded string
+     *
+     * @param $str
+     * @return string
+     */
+    public function base32EncodeFilter($str)
+    {
+        return Base32::encode($str);
+    }
+
+    /**
+     * Return Base32 decoded string
+     *
+     * @param $str
+     * @return bool|string
+     */
+    public function base32DecodeFilter($str)
+    {
+        return Base32::decode($str);
+    }
+
+    /**
+     * Return Base64 encoded string
+     *
+     * @param $str
+     * @return string
+     */
+    public function base64EncodeFilter($str)
+    {
+        return base64_encode($str);
+    }
+
+    /**
+     * Return Base64 decoded string
+     *
+     * @param $str
+     * @return bool|string
+     */
+    public function base64DecodeFilter($str)
+    {
+        return base64_decode($str);
+    }
+
+
     /**
      * Sorts a collection by key
      *