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base64.h
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16 
17 #pragma once
18 
19 #include <boost/algorithm/string.hpp>
20 #include <boost/archive/iterators/base64_from_binary.hpp>
21 #include <boost/archive/iterators/binary_from_base64.hpp>
22 #include <boost/archive/iterators/transform_width.hpp>
23 #include <string>
24 
25 namespace shared {
26 
27 inline std::string decode_base64(const std::string& val, bool trim_nulls) {
28  // For some strings, signatature particualary it is important no to trim
29  // '\0' characters
30  using namespace boost::archive::iterators;
31  using It = transform_width<binary_from_base64<std::string::const_iterator>, 8, 6>;
32 
33  if (!trim_nulls) {
34  return std::string(It(val.begin()), It(val.end()));
35  }
36  return boost::algorithm::trim_right_copy_if(
37  std::string(It(std::begin(val)), It(std::end(val))),
38  [](char c) { return c == '\0'; });
39 }
40 
41 inline std::string decode_base64(const std::string& val) {
42  return decode_base64(val, true);
43 }
44 
45 static inline std::string encode_base64(const std::string& val) {
46  using namespace boost::archive::iterators;
47  using It = base64_from_binary<transform_width<std::string::const_iterator, 6, 8>>;
48  auto tmp = std::string(It(std::begin(val)), It(std::end(val)));
49  return tmp.append((3 - val.size() % 3) % 3, '=');
50 }
51 
52 std::string decode_base64_uri(const std::string& value, bool trim_nulls = true);
53 
54 } // namespace shared
std::string decode_base64_uri(const std::string &data, bool trim_nulls)
Definition: base64.cpp:21
std::string decode_base64(const std::string &val, bool trim_nulls)
Definition: base64.h:27
static std::string encode_base64(const std::string &val)
Definition: base64.h:45