Updated jwt-cpp library.

src/lib/jwt-cpp/base.h

@@ -1,6 +1,11 @@
-#pragma once
-#include <string>
+#ifndef JWT_CPP_BASE_H
+#define JWT_CPP_BASE_H
+
+#include <algorithm>
 #include <array>
+#include <stdexcept>
+#include <string>
+#include <vector>
 
 #ifdef __has_cpp_attribute
 #if __has_cpp_attribute(fallthrough)
@@ -13,198 +18,252 @@
 #endif
 
 namespace jwt {
+	/**
+	 * \brief character maps when encoding and decoding
+	 */
 	namespace alphabet {
+		/**
+		 * \brief valid list of character when working with [Base64](https://datatracker.ietf.org/doc/html/rfc4648#section-4)
+		 *
+		 * As directed in [X.509 Parameter](https://datatracker.ietf.org/doc/html/rfc7517#section-4.7) certificate chains are
+		 * base64-encoded as per [Section 4 of RFC4648](https://datatracker.ietf.org/doc/html/rfc4648#section-4)
+		 */
 		struct base64 {
 			static const std::array<char, 64>& data() {
-				static std::array<char, 64> data = {
+				static constexpr std::array<char, 64> data{
 					{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
 					 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
 					 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
 					 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'}};
-					return data;
-			};
+				return data;
+			}
 			static const std::string& fill() {
-				static std::string fill = "=";
+				static std::string fill{"="};
 				return fill;
 			}
 		};
+		/**
+		 * \brief valid list of character when working with [Base64URL](https://tools.ietf.org/html/rfc4648#section-5)
+		 *
+		 * As directed by [RFC 7519 Terminology](https://datatracker.ietf.org/doc/html/rfc7519#section-2) set the definition of Base64URL
+		 * encoding as that in [RFC 7515](https://datatracker.ietf.org/doc/html/rfc7515#section-2) that states:
+		 *
+		 * > Base64 encoding using the URL- and filename-safe character set defined in
+		 * > [Section 5 of RFC 4648 RFC4648](https://tools.ietf.org/html/rfc4648#section-5), with all trailing '=' characters omitted
+		 */
 		struct base64url {
 			static const std::array<char, 64>& data() {
-				static std::array<char, 64> data = {
+				static constexpr std::array<char, 64> data{
 					{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
 					 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
 					 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
 					 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '_'}};
-					return data;
-			};
+				return data;
+			}
 			static const std::string& fill() {
-				static std::string fill = "%3d";
+				static std::string fill{"%3d"};
 				return fill;
 			}
 		};
-	}
+		namespace helper {
+			/**
+			 * @brief A General purpose base64url alphabet respecting the
+			 * [URI Case Normalization](https://datatracker.ietf.org/doc/html/rfc3986#section-6.2.2.1)
+			 *
+			 * This is useful in situations outside of JWT encoding/decoding and is provided as a helper
+			 */
+			struct base64url_percent_encoding {
+				static const std::array<char, 64>& data() {
+					static constexpr std::array<char, 64> data{
+						{'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
+						 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
+						 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
+						 'w', 'x', 'y', 'z', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '-', '_'}};
+					return data;
+				}
+				static const std::initializer_list<std::string>& fill() {
+					static std::initializer_list<std::string> fill{"%3D", "%3d"};
+					return fill;
+				}
+			};
+		} // namespace helper
 
-	class base {
-	public:
-		template<typename T>
-		static std::string encode(const std::string& bin) {
-			return encode(bin, T::data(), T::fill());
-		}
-		template<typename T>
-		static std::string decode(const std::string& base) {
-			return decode(base, T::data(), T::fill());
-		}
-		template<typename T>
-		static std::string pad(const std::string& base) {
-			return pad(base, T::fill());
-		}
-		template<typename T>
-		static std::string trim(const std::string& base) {
-			return trim(base, T::fill());
-		}
+		inline uint32_t index(const std::array<char, 64>& alphabet, char symbol) {
+			auto itr = std::find_if(alphabet.cbegin(), alphabet.cend(), [symbol](char c) { return c == symbol; });
+			if (itr == alphabet.cend()) { throw std::runtime_error("Invalid input: not within alphabet"); }
 
-	private:
-		static std::string encode(const std::string& bin, const std::array<char, 64>& alphabet, const std::string& fill) {
-			size_t size = bin.size();
-			std::string res;
+			return std::distance(alphabet.cbegin(), itr);
+		}
+	} // namespace alphabet
 
-			// clear incomplete bytes
-			size_t fast_size = size - size % 3;
-			for (size_t i = 0; i < fast_size;) {
-				uint32_t octet_a = (unsigned char)bin[i++];
-				uint32_t octet_b = (unsigned char)bin[i++];
-				uint32_t octet_c = (unsigned char)bin[i++];
+	/**
+	 * \brief A collection of fellable functions for working with base64 and base64url
+	 */
+	namespace base {
+
+		namespace details {
+			struct padding {
+				size_t count = 0;
+				size_t length = 0;
+
+				padding() = default;
+				padding(size_t count, size_t length) : count(count), length(length) {}
+
+				padding operator+(const padding& p) { return padding(count + p.count, length + p.length); }
+
+				friend bool operator==(const padding& lhs, const padding& rhs) {
+					return lhs.count == rhs.count && lhs.length == rhs.length;
+				}
+			};
+
+			inline padding count_padding(const std::string& base, const std::vector<std::string>& fills) {
+				for (const auto& fill : fills) {
+					if (base.size() < fill.size()) continue;
+					// Does the end of the input exactly match the fill pattern?
+					if (base.substr(base.size() - fill.size()) == fill) {
+						return padding{1, fill.length()} +
+							   count_padding(base.substr(0, base.size() - fill.size()), fills);
+					}
+				}
+
+				return {};
+			}
+
+			inline std::string encode(const std::string& bin, const std::array<char, 64>& alphabet,
+									  const std::string& fill) {
+				size_t size = bin.size();
+				std::string res;
+
+				// clear incomplete bytes
+				size_t fast_size = size - size % 3;
+				for (size_t i = 0; i < fast_size;) {
+					uint32_t octet_a = static_cast<unsigned char>(bin[i++]);
+					uint32_t octet_b = static_cast<unsigned char>(bin[i++]);
+					uint32_t octet_c = static_cast<unsigned char>(bin[i++]);
+
+					uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
+
+					res += alphabet[(triple >> 3 * 6) & 0x3F];
+					res += alphabet[(triple >> 2 * 6) & 0x3F];
+					res += alphabet[(triple >> 1 * 6) & 0x3F];
+					res += alphabet[(triple >> 0 * 6) & 0x3F];
+				}
+
+				if (fast_size == size) return res;
+
+				size_t mod = size % 3;
+
+				uint32_t octet_a = fast_size < size ? static_cast<unsigned char>(bin[fast_size++]) : 0;
+				uint32_t octet_b = fast_size < size ? static_cast<unsigned char>(bin[fast_size++]) : 0;
+				uint32_t octet_c = fast_size < size ? static_cast<unsigned char>(bin[fast_size++]) : 0;
 
 				uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
 
-				res += alphabet[(triple >> 3 * 6) & 0x3F];
-				res += alphabet[(triple >> 2 * 6) & 0x3F];
-				res += alphabet[(triple >> 1 * 6) & 0x3F];
-				res += alphabet[(triple >> 0 * 6) & 0x3F];
-			}
-
-			if (fast_size == size)
-				return res;
-
-			size_t mod = size % 3;
-
-			uint32_t octet_a = fast_size < size ? (unsigned char)bin[fast_size++] : 0;
-			uint32_t octet_b = fast_size < size ? (unsigned char)bin[fast_size++] : 0;
-			uint32_t octet_c = fast_size < size ? (unsigned char)bin[fast_size++] : 0;
-
-			uint32_t triple = (octet_a << 0x10) + (octet_b << 0x08) + octet_c;
-
-			switch (mod) {
-			case 1:
-				res += alphabet[(triple >> 3 * 6) & 0x3F];
-				res += alphabet[(triple >> 2 * 6) & 0x3F];
-				res += fill;
-				res += fill;
-				break;
-			case 2:
-				res += alphabet[(triple >> 3 * 6) & 0x3F];
-				res += alphabet[(triple >> 2 * 6) & 0x3F];
-				res += alphabet[(triple >> 1 * 6) & 0x3F];
-				res += fill;
-				break;
-			default:
-				break;
-			}
-
-			return res;
-		}
-
-		static std::string decode(const std::string& base, const std::array<char, 64>& alphabet, const std::string& fill) {
-			size_t size = base.size();
-
-			size_t fill_cnt = 0;
-			while (size > fill.size()) {
-				if (base.substr(size - fill.size(), fill.size()) == fill) {
-					fill_cnt++;
-					size -= fill.size();
-					if(fill_cnt > 2)
-						throw std::runtime_error("Invalid input");
-				}
-				else break;
-			}
-
-			if ((size + fill_cnt) % 4 != 0)
-				throw std::runtime_error("Invalid input");
-
-			size_t out_size = size / 4 * 3;
-			std::string res;
-			res.reserve(out_size);
-
-			auto get_sextet = [&](size_t offset) {
-				for (size_t i = 0; i < alphabet.size(); i++) {
-					if (alphabet[i] == base[offset])
-						return static_cast<uint32_t>(i);
-				}
-				throw std::runtime_error("Invalid input");
-			};
-
-			
-			size_t fast_size = size - size % 4;
-			for (size_t i = 0; i < fast_size;) {
-				uint32_t sextet_a = get_sextet(i++);
-				uint32_t sextet_b = get_sextet(i++);
-				uint32_t sextet_c = get_sextet(i++);
-				uint32_t sextet_d = get_sextet(i++);
-
-				uint32_t triple = (sextet_a << 3 * 6)
-					+ (sextet_b << 2 * 6)
-					+ (sextet_c << 1 * 6)
-					+ (sextet_d << 0 * 6);
-
-				res += (triple >> 2 * 8) & 0xFF;
-				res += (triple >> 1 * 8) & 0xFF;
-				res += (triple >> 0 * 8) & 0xFF;
-			}
-
-			if (fill_cnt == 0)
-				return res;
-
-			uint32_t triple = (get_sextet(fast_size) << 3 * 6)
-				+ (get_sextet(fast_size + 1) << 2 * 6);
-
-			switch (fill_cnt) {
-			case 1:
-				triple |= (get_sextet(fast_size + 2) << 1 * 6);
-				res += (triple >> 2 * 8) & 0xFF;
-				res += (triple >> 1 * 8) & 0xFF;
-				break;
-			case 2:
-				res += (triple >> 2 * 8) & 0xFF;
-				break;
-			default:
-				break;
-			}
-
-			return res;
-		}
-		
-		static std::string pad(const std::string& base, const std::string& fill) {
-			std::string padding;
-			switch (base.size() % 4) {
+				switch (mod) {
 				case 1:
-					padding += fill;
-					JWT_FALLTHROUGH;
-				case 2:
-					padding += fill;
-					JWT_FALLTHROUGH;
-				case 3:
-					padding += fill;
-					JWT_FALLTHROUGH;
-				default:
+					res += alphabet[(triple >> 3 * 6) & 0x3F];
+					res += alphabet[(triple >> 2 * 6) & 0x3F];
+					res += fill;
+					res += fill;
 					break;
+				case 2:
+					res += alphabet[(triple >> 3 * 6) & 0x3F];
+					res += alphabet[(triple >> 2 * 6) & 0x3F];
+					res += alphabet[(triple >> 1 * 6) & 0x3F];
+					res += fill;
+					break;
+				default: break;
+				}
+
+				return res;
 			}
 
-			return base + padding;
-		}
+			inline std::string decode(const std::string& base, const std::array<char, 64>& alphabet,
+									  const std::vector<std::string>& fill) {
+				const auto pad = count_padding(base, fill);
+				if (pad.count > 2) throw std::runtime_error("Invalid input: too much fill");
 
-		static std::string trim(const std::string& base, const std::string& fill) {
-			auto pos = base.find(fill);
-			return base.substr(0, pos);
+				const size_t size = base.size() - pad.length;
+				if ((size + pad.count) % 4 != 0) throw std::runtime_error("Invalid input: incorrect total size");
+
+				size_t out_size = size / 4 * 3;
+				std::string res;
+				res.reserve(out_size);
+
+				auto get_sextet = [&](size_t offset) { return alphabet::index(alphabet, base[offset]); };
+
+				size_t fast_size = size - size % 4;
+				for (size_t i = 0; i < fast_size;) {
+					uint32_t sextet_a = get_sextet(i++);
+					uint32_t sextet_b = get_sextet(i++);
+					uint32_t sextet_c = get_sextet(i++);
+					uint32_t sextet_d = get_sextet(i++);
+
+					uint32_t triple =
+						(sextet_a << 3 * 6) + (sextet_b << 2 * 6) + (sextet_c << 1 * 6) + (sextet_d << 0 * 6);
+
+					res += static_cast<char>((triple >> 2 * 8) & 0xFFU);
+					res += static_cast<char>((triple >> 1 * 8) & 0xFFU);
+					res += static_cast<char>((triple >> 0 * 8) & 0xFFU);
+				}
+
+				if (pad.count == 0) return res;
+
+				uint32_t triple = (get_sextet(fast_size) << 3 * 6) + (get_sextet(fast_size + 1) << 2 * 6);
+
+				switch (pad.count) {
+				case 1:
+					triple |= (get_sextet(fast_size + 2) << 1 * 6);
+					res += static_cast<char>((triple >> 2 * 8) & 0xFFU);
+					res += static_cast<char>((triple >> 1 * 8) & 0xFFU);
+					break;
+				case 2: res += static_cast<char>((triple >> 2 * 8) & 0xFFU); break;
+				default: break;
+				}
+
+				return res;
+			}
+
+			inline std::string decode(const std::string& base, const std::array<char, 64>& alphabet,
+									  const std::string& fill) {
+				return decode(base, alphabet, std::vector<std::string>{fill});
+			}
+
+			inline std::string pad(const std::string& base, const std::string& fill) {
+				std::string padding;
+				switch (base.size() % 4) {
+				case 1: padding += fill; JWT_FALLTHROUGH;
+				case 2: padding += fill; JWT_FALLTHROUGH;
+				case 3: padding += fill; JWT_FALLTHROUGH;
+				default: break;
+				}
+
+				return base + padding;
+			}
+
+			inline std::string trim(const std::string& base, const std::string& fill) {
+				auto pos = base.find(fill);
+				return base.substr(0, pos);
+			}
+		} // namespace details
+
+		template<typename T>
+		std::string encode(const std::string& bin) {
+			return details::encode(bin, T::data(), T::fill());
 		}
-	};
-}
+		template<typename T>
+		std::string decode(const std::string& base) {
+			return details::decode(base, T::data(), T::fill());
+		}
+		template<typename T>
+		std::string pad(const std::string& base) {
+			return details::pad(base, T::fill());
+		}
+		template<typename T>
+		std::string trim(const std::string& base) {
+			return details::trim(base, T::fill());
+		}
+	} // namespace base
+} // namespace jwt
+
+#endif

src/lib/jwt-cpp/traits/boost-json/defaults.h

@@ -0,0 +1,88 @@
+#ifndef JWT_CPP_BOOST_JSON_DEFAULTS_H
+#define JWT_CPP_BOOST_JSON_DEFAULTS_H
+
+#ifndef JWT_DISABLE_PICOJSON
+#define JWT_DISABLE_PICOJSON
+#endif
+
+#include "traits.h"
+
+namespace jwt {
+	/**
+	 * \brief a class to store a generic [Boost.JSON](https://github.com/boostorg/json) value as claim
+	 *
+	 * This type is the specialization of the \ref basic_claim class which
+	 * uses the standard template types.
+	 */
+	using claim = basic_claim<traits::boost_json>;
+
+	/**
+	 * Create a verifier using the default clock
+	 * \return verifier instance
+	 */
+	inline verifier<default_clock, traits::boost_json> verify() {
+		return verify<default_clock, traits::boost_json>(default_clock{});
+	}
+
+	/**
+	 * Return a builder instance to create a new token
+	 */
+	inline builder<traits::boost_json> create() { return builder<traits::boost_json>(); }
+
+#ifndef JWT_DISABLE_BASE64
+	/**
+	 * Decode a token
+	 * \param token Token to decode
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	inline decoded_jwt<traits::boost_json> decode(const std::string& token) {
+		return decoded_jwt<traits::boost_json>(token);
+	}
+#endif
+
+	/**
+	 * Decode a token
+	 * \tparam Decode is callabled, taking a string_type and returns a string_type.
+	 * It should ensure the padding of the input and then base64url decode and
+	 * return the results.
+	 * \param token Token to decode
+	 * \param decode The token to parse
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	template<typename Decode>
+	decoded_jwt<traits::boost_json> decode(const std::string& token, Decode decode) {
+		return decoded_jwt<traits::boost_json>(token, decode);
+	}
+
+	/**
+	 * Parse a jwk
+	 * \param token JWK Token to parse
+	 * \return Parsed JWK
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwk<traits::boost_json> parse_jwk(const traits::boost_json::string_type& token) {
+		return jwk<traits::boost_json>(token);
+	}
+
+	/**
+	 * Parse a jwks
+	 * \param token JWKs Token to parse
+	 * \return Parsed JWKs
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwks<traits::boost_json> parse_jwks(const traits::boost_json::string_type& token) {
+		return jwks<traits::boost_json>(token);
+	}
+
+	/**
+	 * This type is the specialization of the \ref verify_ops::verify_context class which
+	 * uses the standard template types.
+	 */
+	using verify_context = verify_ops::verify_context<traits::boost_json>;
+} // namespace jwt
+
+#endif // JWT_CPP_BOOST_JSON_DEFAULTS_H

src/lib/jwt-cpp/traits/boost-json/traits.h

@@ -0,0 +1,80 @@
+#ifndef JWT_CPP_BOOSTJSON_TRAITS_H
+#define JWT_CPP_BOOSTJSON_TRAITS_H
+
+#define JWT_DISABLE_PICOJSON
+#include "jwt-cpp/jwt.h"
+
+#include <boost/json.hpp>
+// if not boost JSON standalone then error...
+
+namespace jwt {
+	namespace traits {
+		namespace json = boost::json;
+		struct boost_json {
+			using value_type = json::value;
+			using object_type = json::object;
+			using array_type = json::array;
+			using string_type = std::string;
+			using number_type = double;
+			using integer_type = std::int64_t;
+			using boolean_type = bool;
+
+			static jwt::json::type get_type(const value_type& val) {
+				using jwt::json::type;
+
+				if (val.kind() == json::kind::bool_) return type::boolean;
+				if (val.kind() == json::kind::int64) return type::integer;
+				if (val.kind() == json::kind::uint64) // boost internally tracks two types of integers
+					return type::integer;
+				if (val.kind() == json::kind::double_) return type::number;
+				if (val.kind() == json::kind::string) return type::string;
+				if (val.kind() == json::kind::array) return type::array;
+				if (val.kind() == json::kind::object) return type::object;
+
+				throw std::logic_error("invalid type");
+			}
+
+			static object_type as_object(const value_type& val) {
+				if (val.kind() != json::kind::object) throw std::bad_cast();
+				return val.get_object();
+			}
+
+			static array_type as_array(const value_type& val) {
+				if (val.kind() != json::kind::array) throw std::bad_cast();
+				return val.get_array();
+			}
+
+			static string_type as_string(const value_type& val) {
+				if (val.kind() != json::kind::string) throw std::bad_cast();
+				return string_type{val.get_string()};
+			}
+
+			static integer_type as_integer(const value_type& val) {
+				switch (val.kind()) {
+				case json::kind::int64: return val.get_int64();
+				case json::kind::uint64: return static_cast<int64_t>(val.get_uint64());
+				default: throw std::bad_cast();
+				}
+			}
+
+			static boolean_type as_boolean(const value_type& val) {
+				if (val.kind() != json::kind::bool_) throw std::bad_cast();
+				return val.get_bool();
+			}
+
+			static number_type as_number(const value_type& val) {
+				if (val.kind() != json::kind::double_) throw std::bad_cast();
+				return val.get_double();
+			}
+
+			static bool parse(value_type& val, string_type str) {
+				val = json::parse(str);
+				return true;
+			}
+
+			static std::string serialize(const value_type& val) { return json::serialize(val); }
+		};
+	} // namespace traits
+} // namespace jwt
+
+#endif // JWT_CPP_BOOSTJSON_TRAITS_H

src/lib/jwt-cpp/traits/danielaparker-jsoncons/defaults.h

@@ -0,0 +1,88 @@
+#ifndef JWT_CPP_DANIELAPARKER_JSONCONS_DEFAULTS_H
+#define JWT_CPP_DANIELAPARKER_JSONCONS_DEFAULTS_H
+
+#ifndef JWT_DISABLE_PICOJSON
+#define JWT_DISABLE_PICOJSON
+#endif
+
+#include "traits.h"
+
+namespace jwt {
+	/**
+	 * \brief a class to store a generic [jsoncons](https://github.com/danielaparker/jsoncons) value as claim
+	 *
+	 * This type is the specialization of the \ref basic_claim class which
+	 * uses the standard template types.
+	 */
+	using claim = basic_claim<traits::danielaparker_jsoncons>;
+
+	/**
+	 * Create a verifier using the default clock
+	 * \return verifier instance
+	 */
+	inline verifier<default_clock, traits::danielaparker_jsoncons> verify() {
+		return verify<default_clock, traits::danielaparker_jsoncons>(default_clock{});
+	}
+
+	/**
+	 * Return a builder instance to create a new token
+	 */
+	inline builder<traits::danielaparker_jsoncons> create() { return builder<traits::danielaparker_jsoncons>(); }
+
+#ifndef JWT_DISABLE_BASE64
+	/**
+	 * Decode a token
+	 * \param token Token to decode
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	inline decoded_jwt<traits::danielaparker_jsoncons> decode(const std::string& token) {
+		return decoded_jwt<traits::danielaparker_jsoncons>(token);
+	}
+#endif
+
+	/**
+	 * Decode a token
+	 * \tparam Decode is callabled, taking a string_type and returns a string_type.
+	 * It should ensure the padding of the input and then base64url decode and
+	 * return the results.
+	 * \param token Token to decode
+	 * \param decode The token to parse
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	template<typename Decode>
+	decoded_jwt<traits::danielaparker_jsoncons> decode(const std::string& token, Decode decode) {
+		return decoded_jwt<traits::danielaparker_jsoncons>(token, decode);
+	}
+
+	/**
+	 * Parse a jwk
+	 * \param token JWK Token to parse
+	 * \return Parsed JWK
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwk<traits::danielaparker_jsoncons> parse_jwk(const traits::danielaparker_jsoncons::string_type& token) {
+		return jwk<traits::danielaparker_jsoncons>(token);
+	}
+
+	/**
+	 * Parse a jwks
+	 * \param token JWKs Token to parse
+	 * \return Parsed JWKs
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwks<traits::danielaparker_jsoncons> parse_jwks(const traits::danielaparker_jsoncons::string_type& token) {
+		return jwks<traits::danielaparker_jsoncons>(token);
+	}
+
+	/**
+	 * This type is the specialization of the \ref verify_ops::verify_context class which
+	 * uses the standard template types.
+	 */
+	using verify_context = verify_ops::verify_context<traits::danielaparker_jsoncons>;
+} // namespace jwt
+
+#endif // JWT_CPP_DANIELAPARKER_JSONCONS_DEFAULTS_H

src/lib/jwt-cpp/traits/danielaparker-jsoncons/traits.h

@@ -0,0 +1,123 @@
+#define JWT_DISABLE_PICOJSON
+#define JSONCONS_NO_DEPRECATED
+
+#include "jwt-cpp/jwt.h"
+
+#include "jsoncons/json.hpp"
+
+#include <sstream>
+
+namespace jwt {
+	namespace traits {
+		struct danielaparker_jsoncons {
+			// Needs at least https://github.com/danielaparker/jsoncons/commit/28c56b90ec7337f98a5b8942574590111a5e5831
+			static_assert(jsoncons::version().minor >= 167, "A higher version of jsoncons is required!");
+
+			using json = jsoncons::json;
+			using value_type = json;
+			struct object_type : json::object {
+				// Add missing C++11 member types
+				// https://github.com/danielaparker/jsoncons/commit/1b1ceeb572f9a2db6d37cff47ac78a4f14e072e2#commitcomment-45391411
+				using value_type = key_value_type; // Enable optional jwt-cpp methods
+				using mapped_type = key_value_type::value_type;
+				using size_type = size_t; // for implementing count
+
+				object_type() = default;
+				object_type(const object_type&) = default;
+				explicit object_type(const json::object& o) : json::object(o) {}
+				object_type(object_type&&) = default;
+				explicit object_type(json::object&& o) : json::object(o) {}
+				~object_type() = default;
+				object_type& operator=(const object_type& o) = default;
+				object_type& operator=(object_type&& o) noexcept = default;
+
+				// Add missing C++11 subscription operator
+				mapped_type& operator[](const key_type& key) {
+					// https://github.com/microsoft/STL/blob/2914b4301c59dc7ffc09d16ac6f7979fde2b7f2c/stl/inc/map#L325
+					return try_emplace(key).first->value();
+				}
+
+				// Add missing C++11 element access
+				const mapped_type& at(const key_type& key) const {
+					auto target = find(key);
+					if (target != end()) return target->value();
+
+					throw std::out_of_range("invalid key");
+				}
+
+				// Add missing C++11 lookup method
+				size_type count(const key_type& key) const {
+					struct compare {
+						bool operator()(const value_type& val, const key_type& key) const { return val.key() < key; }
+						bool operator()(const key_type& key, const value_type& val) const { return key < val.key(); }
+					};
+
+					// https://en.cppreference.com/w/cpp/algorithm/binary_search#Complexity
+					if (std::binary_search(this->begin(), this->end(), key, compare{})) return 1;
+					return 0;
+				}
+			};
+			using array_type = json::array;
+			using string_type = std::string; // current limitation of traits implementation
+			using number_type = double;
+			using integer_type = int64_t;
+			using boolean_type = bool;
+
+			static jwt::json::type get_type(const json& val) {
+				using jwt::json::type;
+
+				if (val.type() == jsoncons::json_type::bool_value) return type::boolean;
+				if (val.type() == jsoncons::json_type::int64_value) return type::integer;
+				if (val.type() == jsoncons::json_type::uint64_value) return type::integer;
+				if (val.type() == jsoncons::json_type::half_value) return type::number;
+				if (val.type() == jsoncons::json_type::double_value) return type::number;
+				if (val.type() == jsoncons::json_type::string_value) return type::string;
+				if (val.type() == jsoncons::json_type::array_value) return type::array;
+				if (val.type() == jsoncons::json_type::object_value) return type::object;
+
+				throw std::logic_error("invalid type");
+			}
+
+			static object_type as_object(const json& val) {
+				if (val.type() != jsoncons::json_type::object_value) throw std::bad_cast();
+				return object_type(val.object_value());
+			}
+
+			static array_type as_array(const json& val) {
+				if (val.type() != jsoncons::json_type::array_value) throw std::bad_cast();
+				return val.array_value();
+			}
+
+			static string_type as_string(const json& val) {
+				if (val.type() != jsoncons::json_type::string_value) throw std::bad_cast();
+				return val.as_string();
+			}
+
+			static number_type as_number(const json& val) {
+				if (get_type(val) != jwt::json::type::number) throw std::bad_cast();
+				return val.as_double();
+			}
+
+			static integer_type as_integer(const json& val) {
+				if (get_type(val) != jwt::json::type::integer) throw std::bad_cast();
+				return val.as<integer_type>();
+			}
+
+			static boolean_type as_boolean(const json& val) {
+				if (val.type() != jsoncons::json_type::bool_value) throw std::bad_cast();
+				return val.as_bool();
+			}
+
+			static bool parse(json& val, const std::string& str) {
+				val = json::parse(str);
+				return true;
+			}
+
+			static std::string serialize(const json& val) {
+				std::ostringstream os;
+				os << jsoncons::print(val);
+				return os.str();
+			}
+		};
+	} // namespace traits
+} // namespace jwt

src/lib/jwt-cpp/traits/defaults.h.mustache

@@ -0,0 +1,90 @@
+#ifndef JWT_CPP_{{traits_name_upper}}_DEFAULTS_H
+#define JWT_CPP_{{traits_name_upper}}_DEFAULTS_H
+{{#disable_default_traits}}
+
+#ifndef JWT_DISABLE_PICOJSON
+#define JWT_DISABLE_PICOJSON
+#endif
+{{/disable_default_traits}}
+
+#include "traits.h"
+
+namespace jwt {
+	/**
+	 * \brief a class to store a generic [{{library_name}}]({{{library_url}}}) value as claim
+	 *
+	 * This type is the specialization of the \ref basic_claim class which
+	 * uses the standard template types.
+	 */
+	using claim = basic_claim<traits::{{traits_name}}>;
+
+	/**
+	 * Create a verifier using the default clock
+	 * \return verifier instance
+	 */
+	inline verifier<default_clock, traits::{{traits_name}}> verify() {
+		return verify<default_clock, traits::{{traits_name}}>(default_clock{});
+	}
+
+	/**
+	 * Return a builder instance to create a new token
+	 */
+	inline builder<traits::{{traits_name}}> create() { return builder<traits::{{traits_name}}>(); }
+
+#ifndef JWT_DISABLE_BASE64
+	/**
+	 * Decode a token
+	 * \param token Token to decode
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	inline decoded_jwt<traits::{{traits_name}}> decode(const std::string& token) {
+		return decoded_jwt<traits::{{traits_name}}>(token);
+	}
+#endif
+
+	/**
+	 * Decode a token
+	 * \tparam Decode is callabled, taking a string_type and returns a string_type.
+	 * It should ensure the padding of the input and then base64url decode and
+	 * return the results.
+	 * \param token Token to decode
+	 * \param decode The token to parse
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	template<typename Decode>
+	decoded_jwt<traits::{{traits_name}}> decode(const std::string& token, Decode decode) {
+		return decoded_jwt<traits::{{traits_name}}>(token, decode);
+	}
+
+	/**
+	 * Parse a jwk
+	 * \param token JWK Token to parse
+	 * \return Parsed JWK
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwk<traits::{{traits_name}}> parse_jwk(const traits::{{traits_name}}::string_type& token) {
+		return jwk<traits::{{traits_name}}>(token);
+	}
+
+	/**
+	 * Parse a jwks
+	 * \param token JWKs Token to parse
+	 * \return Parsed JWKs
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwks<traits::{{traits_name}}> parse_jwks(const traits::{{traits_name}}::string_type& token) {
+		return jwks<traits::{{traits_name}}>(token);
+	}
+
+	/**
+	 * This type is the specialization of the \ref verify_ops::verify_context class which
+	 * uses the standard template types.
+	 */
+	using verify_context = verify_ops::verify_context<traits::{{traits_name}}>;
+} // namespace jwt
+
+#endif // JWT_CPP_{{traits_name_upper}}_DEFAULTS_H

src/lib/jwt-cpp/traits/kazuho-picojson/defaults.h

@@ -0,0 +1,84 @@
+#ifndef JWT_CPP_KAZUHO_PICOJSON_DEFAULTS_H
+#define JWT_CPP_KAZUHO_PICOJSON_DEFAULTS_H
+
+#include "traits.h"
+
+namespace jwt {
+	/**
+	 * \brief a class to store a generic [picojson](https://github.com/kazuho/picojson) value as claim
+	 *
+	 * This type is the specialization of the \ref basic_claim class which
+	 * uses the standard template types.
+	 */
+	using claim = basic_claim<traits::kazuho_picojson>;
+
+	/**
+	 * Create a verifier using the default clock
+	 * \return verifier instance
+	 */
+	inline verifier<default_clock, traits::kazuho_picojson> verify() {
+		return verify<default_clock, traits::kazuho_picojson>(default_clock{});
+	}
+
+	/**
+	 * Return a builder instance to create a new token
+	 */
+	inline builder<traits::kazuho_picojson> create() { return builder<traits::kazuho_picojson>(); }
+
+#ifndef JWT_DISABLE_BASE64
+	/**
+	 * Decode a token
+	 * \param token Token to decode
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	inline decoded_jwt<traits::kazuho_picojson> decode(const std::string& token) {
+		return decoded_jwt<traits::kazuho_picojson>(token);
+	}
+#endif
+
+	/**
+	 * Decode a token
+	 * \tparam Decode is callabled, taking a string_type and returns a string_type.
+	 * It should ensure the padding of the input and then base64url decode and
+	 * return the results.
+	 * \param token Token to decode
+	 * \param decode The token to parse
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	template<typename Decode>
+	decoded_jwt<traits::kazuho_picojson> decode(const std::string& token, Decode decode) {
+		return decoded_jwt<traits::kazuho_picojson>(token, decode);
+	}
+
+	/**
+	 * Parse a jwk
+	 * \param token JWK Token to parse
+	 * \return Parsed JWK
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwk<traits::kazuho_picojson> parse_jwk(const traits::kazuho_picojson::string_type& token) {
+		return jwk<traits::kazuho_picojson>(token);
+	}
+
+	/**
+	 * Parse a jwks
+	 * \param token JWKs Token to parse
+	 * \return Parsed JWKs
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwks<traits::kazuho_picojson> parse_jwks(const traits::kazuho_picojson::string_type& token) {
+		return jwks<traits::kazuho_picojson>(token);
+	}
+
+	/**
+	 * This type is the specialization of the \ref verify_ops::verify_context class which
+	 * uses the standard template types.
+	 */
+	using verify_context = verify_ops::verify_context<traits::kazuho_picojson>;
+} // namespace jwt
+
+#endif // JWT_CPP_KAZUHO_PICOJSON_DEFAULTS_H

src/lib/jwt-cpp/traits/kazuho-picojson/traits.h

@@ -0,0 +1,76 @@
+#ifndef JWT_CPP_PICOJSON_TRAITS_H
+#define JWT_CPP_PICOJSON_TRAITS_H
+
+#ifndef PICOJSON_USE_INT64
+#define PICOJSON_USE_INT64
+#endif
+#include "picojson.h"
+
+#ifndef JWT_DISABLE_PICOJSON
+#define JWT_DISABLE_PICOJSON
+#endif
+#include "jwt.h"
+
+namespace jwt {
+	namespace traits {
+		struct kazuho_picojson {
+			using value_type = picojson::value;
+			using object_type = picojson::object;
+			using array_type = picojson::array;
+			using string_type = std::string;
+			using number_type = double;
+			using integer_type = int64_t;
+			using boolean_type = bool;
+
+			static json::type get_type(const picojson::value& val) {
+				using json::type;
+				if (val.is<bool>()) return type::boolean;
+				if (val.is<int64_t>()) return type::integer;
+				if (val.is<double>()) return type::number;
+				if (val.is<std::string>()) return type::string;
+				if (val.is<picojson::array>()) return type::array;
+				if (val.is<picojson::object>()) return type::object;
+
+				throw std::logic_error("invalid type");
+			}
+
+			static picojson::object as_object(const picojson::value& val) {
+				if (!val.is<picojson::object>()) throw std::bad_cast();
+				return val.get<picojson::object>();
+			}
+
+			static std::string as_string(const picojson::value& val) {
+				if (!val.is<std::string>()) throw std::bad_cast();
+				return val.get<std::string>();
+			}
+
+			static picojson::array as_array(const picojson::value& val) {
+				if (!val.is<picojson::array>()) throw std::bad_cast();
+				return val.get<picojson::array>();
+			}
+
+			static int64_t as_integer(const picojson::value& val) {
+				if (!val.is<int64_t>()) throw std::bad_cast();
+				return val.get<int64_t>();
+			}
+
+			static bool as_boolean(const picojson::value& val) {
+				if (!val.is<bool>()) throw std::bad_cast();
+				return val.get<bool>();
+			}
+
+			static double as_number(const picojson::value& val) {
+				if (!val.is<double>()) throw std::bad_cast();
+				return val.get<double>();
+			}
+
+			static bool parse(picojson::value& val, const std::string& str) {
+				return picojson::parse(val, str).empty();
+			}
+
+			static std::string serialize(const picojson::value& val) { return val.serialize(); }
+		};
+	} // namespace traits
+} // namespace jwt
+
+#endif

src/lib/jwt-cpp/traits/nlohmann-json/defaults.h

@@ -0,0 +1,88 @@
+#ifndef JWT_CPP_NLOHMANN_JSON_DEFAULTS_H
+#define JWT_CPP_NLOHMANN_JSON_DEFAULTS_H
+
+#ifndef JWT_DISABLE_PICOJSON
+#define JWT_DISABLE_PICOJSON
+#endif
+
+#include "traits.h"
+
+namespace jwt {
+	/**
+	 * \brief a class to store a generic [JSON for Modern C++](https://github.com/nlohmann/json) value as claim
+	 *
+	 * This type is the specialization of the \ref basic_claim class which
+	 * uses the standard template types.
+	 */
+	using claim = basic_claim<traits::nlohmann_json>;
+
+	/**
+	 * Create a verifier using the default clock
+	 * \return verifier instance
+	 */
+	inline verifier<default_clock, traits::nlohmann_json> verify() {
+		return verify<default_clock, traits::nlohmann_json>(default_clock{});
+	}
+
+	/**
+	 * Return a builder instance to create a new token
+	 */
+	inline builder<traits::nlohmann_json> create() { return builder<traits::nlohmann_json>(); }
+
+#ifndef JWT_DISABLE_BASE64
+	/**
+	 * Decode a token
+	 * \param token Token to decode
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	inline decoded_jwt<traits::nlohmann_json> decode(const std::string& token) {
+		return decoded_jwt<traits::nlohmann_json>(token);
+	}
+#endif
+
+	/**
+	 * Decode a token
+	 * \tparam Decode is callabled, taking a string_type and returns a string_type.
+	 * It should ensure the padding of the input and then base64url decode and
+	 * return the results.
+	 * \param token Token to decode
+	 * \param decode The token to parse
+	 * \return Decoded token
+	 * \throw std::invalid_argument Token is not in correct format
+	 * \throw std::runtime_error Base64 decoding failed or invalid json
+	 */
+	template<typename Decode>
+	decoded_jwt<traits::nlohmann_json> decode(const std::string& token, Decode decode) {
+		return decoded_jwt<traits::nlohmann_json>(token, decode);
+	}
+
+	/**
+	 * Parse a jwk
+	 * \param token JWK Token to parse
+	 * \return Parsed JWK
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwk<traits::nlohmann_json> parse_jwk(const traits::nlohmann_json::string_type& token) {
+		return jwk<traits::nlohmann_json>(token);
+	}
+
+	/**
+	 * Parse a jwks
+	 * \param token JWKs Token to parse
+	 * \return Parsed JWKs
+	 * \throw std::runtime_error Token is not in correct format
+	 */
+	inline jwks<traits::nlohmann_json> parse_jwks(const traits::nlohmann_json::string_type& token) {
+		return jwks<traits::nlohmann_json>(token);
+	}
+
+	/**
+	 * This type is the specialization of the \ref verify_ops::verify_context class which
+	 * uses the standard template types.
+	 */
+	using verify_context = verify_ops::verify_context<traits::nlohmann_json>;
+} // namespace jwt
+
+#endif // JWT_CPP_NLOHMANN_JSON_DEFAULTS_H

src/lib/jwt-cpp/traits/nlohmann-json/traits.h

@@ -0,0 +1,77 @@
+#ifndef JWT_CPP_NLOHMANN_JSON_TRAITS_H
+#define JWT_CPP_NLOHMANN_JSON_TRAITS_H
+
+#include "jwt-cpp/jwt.h"
+#include "nlohmann/json.hpp"
+
+namespace jwt {
+	namespace traits {
+		struct nlohmann_json {
+			using json = nlohmann::json;
+			using value_type = json;
+			using object_type = json::object_t;
+			using array_type = json::array_t;
+			using string_type = std::string; // current limitation of traits implementation
+			using number_type = json::number_float_t;
+			using integer_type = json::number_integer_t;
+			using boolean_type = json::boolean_t;
+
+			static jwt::json::type get_type(const json& val) {
+				using jwt::json::type;
+
+				if (val.type() == json::value_t::boolean) return type::boolean;
+				// nlohmann internally tracks two types of integers
+				if (val.type() == json::value_t::number_integer) return type::integer;
+				if (val.type() == json::value_t::number_unsigned) return type::integer;
+				if (val.type() == json::value_t::number_float) return type::number;
+				if (val.type() == json::value_t::string) return type::string;
+				if (val.type() == json::value_t::array) return type::array;
+				if (val.type() == json::value_t::object) return type::object;
+
+				throw std::logic_error("invalid type");
+			}
+
+			static json::object_t as_object(const json& val) {
+				if (val.type() != json::value_t::object) throw std::bad_cast();
+				return val.get<json::object_t>();
+			}
+
+			static std::string as_string(const json& val) {
+				if (val.type() != json::value_t::string) throw std::bad_cast();
+				return val.get<std::string>();
+			}
+
+			static json::array_t as_array(const json& val) {
+				if (val.type() != json::value_t::array) throw std::bad_cast();
+				return val.get<json::array_t>();
+			}
+
+			static int64_t as_integer(const json& val) {
+				switch (val.type()) {
+				case json::value_t::number_integer:
+				case json::value_t::number_unsigned: return val.get<int64_t>();
+				default: throw std::bad_cast();
+				}
+			}
+
+			static bool as_boolean(const json& val) {
+				if (val.type() != json::value_t::boolean) throw std::bad_cast();
+				return val.get<bool>();
+			}
+
+			static double as_number(const json& val) {
+				if (val.type() != json::value_t::number_float) throw std::bad_cast();
+				return val.get<double>();
+			}
+
+			static bool parse(json& val, std::string str) {
+				val = json::parse(str.begin(), str.end());
+				return true;
+			}
+
+			static std::string serialize(const json& val) { return val.dump(); }
+		};
+	} // namespace traits
+} // namespace jwt
+
+#endif