From dc64e721ee0e5e49dd3b446aa3c90dab19654c21 Mon Sep 17 00:00:00 2001
From: guessi <guessi@gmail.com>
Date: Wed, 17 Feb 2016 17:00:41 +0800
Subject: Extend Base64() function support

---
 lib/puppet/parser/functions/base64.rb | 41 ++++++++++++++++++++++++++++++-----
 1 file changed, 36 insertions(+), 5 deletions(-)

(limited to 'lib/puppet')

diff --git a/lib/puppet/parser/functions/base64.rb b/lib/puppet/parser/functions/base64.rb
index 617ba31..a8998f2 100644
--- a/lib/puppet/parser/functions/base64.rb
+++ b/lib/puppet/parser/functions/base64.rb
@@ -6,14 +6,19 @@ module Puppet::Parser::Functions
 
     Usage:
 
-      $encodestring = base64('encode','thestring')
-      $decodestring = base64('decode','dGhlc3RyaW5n')
+      $encodestring = base64('encode', 'thestring')
+      $decodestring = base64('decode', 'dGhlc3RyaW5n')
+
+      # explicitly define encode/decode method: default, strict, urlsafe
+      $method = 'default'
+      $encodestring = base64('encode', 'thestring', $method)
+      $decodestring = base64('decode', 'dGhlc3RyaW5n', $method)
 
     ENDHEREDOC
 
     require 'base64'
 
-    raise Puppet::ParseError, ("base64(): Wrong number of arguments (#{args.length}; must be = 2)") unless args.length == 2
+    raise Puppet::ParseError, ("base64(): Wrong number of arguments (#{args.length}; must be >= 2)") unless args.length >= 2
 
     actions = ['encode','decode']
 
@@ -25,11 +30,37 @@ module Puppet::Parser::Functions
       raise Puppet::ParseError, ("base64(): the second argument must be a string to base64")
     end
 
+    method = ['default','strict','urlsafe']
+
+    if args.length <= 2
+      chosenMethod = 'default'
+    else
+      chosenMethod = args[2]
+    end
+
+    unless method.include?(chosenMethod)
+      raise Puppet::ParseError, ("base64(): the third argument must be one of 'default', 'strict', or 'urlsafe'")
+    end
+
     case args[0]
       when 'encode'
-        result = Base64.encode64(args[1])
+        case chosenMethod
+          when 'default'
+            result = Base64.encode64(args[1])
+          when 'strict'
+            result = Base64.strict_encode64(args[1])
+          when 'urlsafe'
+            result = Base64.urlsafe_encode64(args[1])
+        end
       when 'decode'
-        result = Base64.decode64(args[1])
+        case chosenMethod
+          when 'default'
+            result = Base64.decode64(args[1])
+          when 'strict'
+            result = Base64.strict_decode64(args[1])
+          when 'urlsafe'
+            result = Base64.urlsafe_decode64(args[1])
+        end
     end
 
     return result
-- 
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