From 3c475f5027e870b19b9227375121b3b860eafb93 Mon Sep 17 00:00:00 2001
From: Roland Reichwein <mail@reichwein.it>
Date: Wed, 4 Jan 2023 20:22:36 +0100
Subject: Added os.cpp and base64.cpp

---
 base64.cpp | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 base64.cpp

(limited to 'base64.cpp')

diff --git a/base64.cpp b/base64.cpp
new file mode 100644
index 0000000..d72dc52
--- /dev/null
+++ b/base64.cpp
@@ -0,0 +1,23 @@
+#include "base64.h"
+
+#include <boost/archive/iterators/binary_from_base64.hpp>
+#include <boost/archive/iterators/base64_from_binary.hpp>
+#include <boost/archive/iterators/transform_width.hpp>
+#include <boost/algorithm/string.hpp>
+
+std::string Reichwein::Base64::decode64(const std::string &val)
+{
+ using namespace boost::archive::iterators;
+ using It = transform_width<binary_from_base64<std::string::const_iterator>, 8, 6>;
+ return boost::algorithm::trim_right_copy_if(std::string(It(std::begin(val)), It(std::end(val))), [](char c) {
+  return c == '\0';
+ });
+}
+
+std::string Reichwein::Base64::encode64(const std::string &val)
+{
+ using namespace boost::archive::iterators;
+ using It = base64_from_binary<transform_width<std::string::const_iterator, 6, 8>>;
+ auto tmp = std::string(It(std::begin(val)), It(std::end(val)));
+ return tmp.append((3 - val.size() % 3) % 3, '=');
+}
-- 
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