68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
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#include "openssl_utils.hpp"
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#include "c_callback.hpp"
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <boost/log/trivial.hpp>
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#include <cstdio>
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using namespace std::literals;
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auto log_openssl_errors(const std::string_view prefix) -> void
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{
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auto err_cb = [prefix](const char *str, size_t len) -> int {
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BOOST_LOG_TRIVIAL(error) << prefix << std::string_view{str, len};
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return 0;
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};
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ERR_print_errors_cb(CCallback<decltype(err_cb)>::invoke, &err_cb);
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}
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auto cert_from_file(const std::string &filename) -> X509_Ref
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{
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X509_Ref cert;
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if (const auto fp = fopen(filename.c_str(), "r"))
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{
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cert.reset(PEM_read_X509(fp, nullptr, nullptr, nullptr));
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if (cert.get() == nullptr)
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{
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log_openssl_errors("Reading certificate: "sv);
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}
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fclose(fp);
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}
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else
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{
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const auto err = strerror(errno);
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BOOST_LOG_TRIVIAL(error) << "Opening certificate: " << err;
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}
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return cert;
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}
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auto key_from_file(const std::string &filename, const std::string_view password) -> EVP_PKEY_Ref
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{
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EVP_PKEY_Ref key;
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if (const auto fp = fopen(filename.c_str(), "r"))
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{
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auto cb = [password](char * const buf, int const size, int) -> int {
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if (size < password.size()) { return -1; }
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std::copy(password.begin(), password.end(), buf);
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return password.size();
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};
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key.reset(PEM_read_PrivateKey(fp, nullptr, CCallback<decltype(cb)>::invoke, &cb));
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if (key.get() == nullptr)
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{
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log_openssl_errors("Reading private key: "sv);
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}
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fclose(fp);
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}
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else
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{
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const auto err = strerror(errno);
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BOOST_LOG_TRIVIAL(error) << "Opening private key: " << err;
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}
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return key;
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}
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