/*
   Copyright (c) 2015, 2021, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
*/

#include "client_priv.h"
#include <vector>
#include "mysql_connection_options.h"
#include "sslopt-vars.h"
#include "instance_callback.h"

using namespace Mysql::Tools::Base::Options;

void Mysql_connection_options::Ssl_options::create_options()
{
  Instance_callback<void, char*, Mysql_connection_options::Ssl_options>
    callback(this, &Mysql_connection_options::Ssl_options::mode_option_callback);

#if defined(HAVE_OPENSSL) && !defined(EMBEDDED_LIBRARY)
  this->create_new_option(&this->m_ssl_mode_string, "ssl-mode",
      "SSL connection mode.")
#ifdef MYSQL_CLIENT
    ->add_callback(new Instance_callback<void, char*,
      Mysql_connection_options::Ssl_options>(
        this, &Mysql_connection_options::Ssl_options::mode_option_callback))
#endif
    ;
  this->create_new_option(&::opt_ssl_ca, "ssl-ca", "CA file in PEM format.")
    ->add_callback(new Instance_callback<void, char*,
      Mysql_connection_options::Ssl_options>(
        this, &Mysql_connection_options::Ssl_options::ca_option_callback));
  this->create_new_option(&::opt_ssl_capath, "ssl-capath", "CA directory.")
    ->add_callback(new Instance_callback<void, char*,
      Mysql_connection_options::Ssl_options>(
        this, &Mysql_connection_options::Ssl_options::ca_option_callback));
  this->create_new_option(&::opt_ssl_cert, "ssl-cert",
      "X509 cert in PEM format.");
  this->create_new_option(&::opt_ssl_cipher, "ssl-cipher",
      "SSL cipher to use.");
  this->create_new_option(&::opt_ssl_key, "ssl-key",
      "X509 key in PEM format.");
  this->create_new_option(&::opt_ssl_crl, "ssl-crl",
      "Certificate revocation list.");
  this->create_new_option(&::opt_ssl_crlpath, "ssl-crlpath",
      "Certificate revocation list path.");
  this->create_new_option(&::opt_tls_version, "tls-version",
      "TLS version to use.");

#ifdef MYSQL_CLIENT
  this->create_new_option(&this->m_ssl, "ssl",
                          "Deprecated. Use ssl-mode instead.")
    ->add_callback(new Instance_callback<void, char*,
                   Mysql_connection_options::Ssl_options>(
                     this, &Mysql_connection_options::Ssl_options::use_ssl_option_callback));

  this->create_new_option(&this->m_ssl_verify_server_cert, "ssl-verify-server-cert",
                          "Deprecated. Use ssl-mode=VERIFY_IDENTITY instead.")
    ->add_callback(new Instance_callback<void, char*,
                   Mysql_connection_options::Ssl_options>(
                     this,
                     &Mysql_connection_options::Ssl_options::ssl_verify_server_cert_callback));

#endif
#endif /* HAVE_OPENSSL */
}


void Mysql_connection_options::Ssl_options::ca_option_callback(
  char *argument MY_ATTRIBUTE((unused)))
{
  if (!ssl_mode_set_explicitly)
    ::opt_ssl_mode= SSL_MODE_VERIFY_CA;
}


void Mysql_connection_options::Ssl_options::mode_option_callback(
  char *argument)
{
  ::opt_ssl_mode= find_type_or_exit(argument, &ssl_mode_typelib, "ssl-mode");
  ssl_mode_set_explicitly= true;
}


void Mysql_connection_options::Ssl_options::apply_for_connection(
  MYSQL* connection)
{
  SSL_SET_OPTIONS(connection);
}


void Mysql_connection_options::Ssl_options::use_ssl_option_callback(
  char *argument MY_ATTRIBUTE((unused)))
{
  CLIENT_WARN_DEPRECATED("--ssl", "--ssl-mode");
  if (!opt_use_ssl_arg)
    opt_ssl_mode= SSL_MODE_DISABLED;
  else if (opt_ssl_mode < SSL_MODE_REQUIRED)
    opt_ssl_mode= SSL_MODE_REQUIRED;
}


void Mysql_connection_options::Ssl_options::ssl_verify_server_cert_callback(
  char *argument MY_ATTRIBUTE((unused)))
{
  CLIENT_WARN_DEPRECATED("--ssl-verify-server-cert",
                         "--ssl-mode=VERIFY_IDENTITY");
  if (!opt_ssl_verify_server_cert_arg)
  {
    if (opt_ssl_mode >= SSL_MODE_VERIFY_IDENTITY)
      opt_ssl_mode= SSL_MODE_VERIFY_CA;
  }
  else
    opt_ssl_mode= SSL_MODE_VERIFY_IDENTITY;
}