83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
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#include <chrono>
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#include <cassert>
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#include <fstream>
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#include <string>
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#include <iostream>
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#include "jwt/jwt.hpp"
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/***
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* STEPS TO GENERATE RSA PRIVATE PUBLIC KEYPAIR.
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*
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* 1. openssl genrsa -out jwtRS256.key 1024
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* 2. openssl rsa -in jwtRS256.key -pubout -outform PEM -out jwtRS256.key.pub
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*/
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std::string read_from_file(const std::string& path)
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{
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std::string contents;
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std::ifstream is{path, std::ifstream::binary};
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if (is) {
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// get length of file:
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is.seekg (0, is.end);
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auto length = is.tellg();
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is.seekg (0, is.beg);
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contents.resize(length);
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is.read(&contents[0], length);
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if (!is) {
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is.close();
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return {};
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}
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} else {
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std::cerr << "FILE not FOUND!!" << std::endl;
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}
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is.close();
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return contents;
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}
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int main() {
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using namespace jwt::params;
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const std::string priv_key_path = std::string{CERT_ROOT_DIR} + "/jwtRS256.key";
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const std::string pub_key_path = std::string{CERT_ROOT_DIR} + "/jwtRS256.key.pub";
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auto priv_key = read_from_file(priv_key_path);
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jwt::jwt_object obj{algorithm("RS256"), secret(priv_key), payload({{"user", "admin"}})};
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//Use add_claim API to add claim values which are
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// _not_ strings.
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// For eg: `iat` and `exp` claims below.
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// Other claims could have been added in the payload
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// function above as they are just stringy things.
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obj.add_claim("iss", "arun.muralidharan")
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.add_claim("sub", "test")
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.add_claim("id", "a-b-c-d-e-f-1-2-3")
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.add_claim("iat", 1513862371)
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.add_claim("exp", std::chrono::system_clock::now() + std::chrono::seconds{10})
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;
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//Use `has_claim` to check if the claim exists or not
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assert (obj.has_claim("iss"));
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assert (obj.has_claim("exp"));
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//Use `has_claim_with_value` to check if the claim exists
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//with a specific value or not.
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assert (obj.payload().has_claim_with_value("id", "a-b-c-d-e-f-1-2-3"));
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assert (obj.payload().has_claim_with_value("iat", 1513862371));
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auto pub_key = read_from_file(pub_key_path);
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std::error_code ec{};
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auto sign = obj.signature(ec);
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if (ec) {
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std::cerr << ec.message() << std::endl;
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return 1;
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}
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auto dec_obj = jwt::decode(sign, algorithms({"RS256"}), verify(false), secret(pub_key));
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return 0;
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}
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