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Give better error messages when missing SSL files

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While copying my data dir to another drive, I missed copying the rpc_ssl.key file b/c of the file permissions.
This change will give a much more clear, descriptive error in that scenario.
This commit is contained in:
Jeffrey Ryan 2022-05-05 21:23:51 -05:00
parent 67e5ca9ad6
commit 1ddb1ee819
2 changed files with 40 additions and 6 deletions
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25
contrib/epee/src/net_ssl.cpp
View file

@ -38,6 +38,7 @@
#include "misc_log_ex.h"
#include "net/net_helper.h"
#include "net/net_ssl.h"
#include "file_io_utils.h" // to validate .crt and .key paths
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "net.ssl"
@ -356,6 +357,15 @@ boost::asio::ssl::context ssl_options_t::create_context() const
}
CHECK_AND_ASSERT_THROW_MES(auth.private_key_path.empty() == auth.certificate_path.empty(), "private key and certificate must be either both given or both empty");
const bool private_key_exists = epee::file_io_utils::is_file_exist(auth.private_key_path);
const bool certificate_exists = epee::file_io_utils::is_file_exist(auth.certificate_path);
if (private_key_exists && !certificate_exists) {
ASSERT_MES_AND_THROW("private key is present, but certificate file '" << auth.certificate_path << "' is missing");
} else if (!private_key_exists && certificate_exists) {
ASSERT_MES_AND_THROW("certificate is present, but private key file '" << auth.private_key_path << "' is missing");
}
if (auth.private_key_path.empty())
{
EVP_PKEY *pkey;
@ -392,7 +402,12 @@ boost::asio::ssl::context ssl_options_t::create_context() const
void ssl_authentication_t::use_ssl_certificate(boost::asio::ssl::context &ssl_context) const
{
ssl_context.use_private_key_file(private_key_path, boost::asio::ssl::context::pem);
try {
ssl_context.use_private_key_file(private_key_path, boost::asio::ssl::context::pem);
} catch (const boost::system::system_error&) {
MERROR("Failed to load private key file '" << private_key_path << "' into SSL context");
throw;
}
ssl_context.use_certificate_chain_file(certificate_path);
}
@ -590,7 +605,15 @@ boost::system::error_code store_ssl_keys(boost::asio::ssl::context& ssl, const b
const boost::filesystem::path key_file{base.string() + ".key"};
file.reset(std::fopen(key_file.string().c_str(), "wb"));
if (!file)
{
if (epee::file_io_utils::is_file_exist(key_file.string())) {
MERROR("Permission denied to overwrite SSL private key file: '" << key_file.string() << "'");
} else {
MERROR("Could not open SSL private key file for writing: '" << key_file.string() << "'");
}
return {errno, boost::system::system_category()};
}
boost::filesystem::permissions(key_file, boost::filesystem::owner_read, error);
if (error)
return error;

21
src/rpc/core_rpc_server.cpp
View file

@ -350,12 +350,23 @@ namespace cryptonote
bool store_ssl_key = !restricted && rpc_config->ssl_options && rpc_config->ssl_options.auth.certificate_path.empty();
const auto ssl_base_path = (boost::filesystem::path{data_dir} / "rpc_ssl").string();
if (store_ssl_key && boost::filesystem::exists(ssl_base_path + ".crt"))
const bool ssl_cert_file_exists = boost::filesystem::exists(ssl_base_path + ".crt");
const bool ssl_pkey_file_exists = boost::filesystem::exists(ssl_base_path + ".key");
if (store_ssl_key)
{
// load key from previous run, password prompted by OpenSSL
store_ssl_key = false;
rpc_config->ssl_options.auth =
epee::net_utils::ssl_authentication_t{ssl_base_path + ".key", ssl_base_path + ".crt"};
// .key files are often given different read permissions as their corresponding .crt files.
// Consequently, sometimes the .key file wont't get copied, while the .crt file will.
if (ssl_cert_file_exists != ssl_pkey_file_exists)
{
MFATAL("Certificate (.crt) and private key (.key) files must both exist or both not exist at path: " << ssl_base_path);
return false;
}
else if (ssl_cert_file_exists) { // and ssl_pkey_file_exists
// load key from previous run, password prompted by OpenSSL
store_ssl_key = false;
rpc_config->ssl_options.auth =
epee::net_utils::ssl_authentication_t{ssl_base_path + ".key", ssl_base_path + ".crt"};
}
}
auto rng = [](size_t len, uint8_t *ptr){ return crypto::rand(len, ptr); };