# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import annotations

INCLUDES = """
/* define our OpenSSL API compatibility level to 1.1.0. Any symbols older than
   that will raise an error during compilation. */
#define OPENSSL_API_COMPAT 0x10100000L

#if defined(_WIN32)
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <Wincrypt.h>
#include <Winsock2.h>
/*
    undef some macros that are defined by wincrypt.h but are also types in
    boringssl. openssl has worked around this but boring has not yet. see:
    https://chromium.googlesource.com/chromium/src/+/refs/heads/main/base
    /win/wincrypt_shim.h
*/
#undef X509_NAME
#undef X509_EXTENSIONS
#undef PKCS7_SIGNER_INFO
#endif

#include <openssl/opensslv.h>


#if defined(LIBRESSL_VERSION_NUMBER)
#define CRYPTOGRAPHY_IS_LIBRESSL 1
#else
#define CRYPTOGRAPHY_IS_LIBRESSL 0
#endif

#if defined(OPENSSL_IS_BORINGSSL)
#define CRYPTOGRAPHY_IS_BORINGSSL 1
#else
#define CRYPTOGRAPHY_IS_BORINGSSL 0
#endif

#if CRYPTOGRAPHY_IS_LIBRESSL
#define CRYPTOGRAPHY_LIBRESSL_LESS_THAN_370 \
    (LIBRESSL_VERSION_NUMBER < 0x3070000f)

#else
#define CRYPTOGRAPHY_LIBRESSL_LESS_THAN_370 (0)
#endif

#if OPENSSL_VERSION_NUMBER < 0x10101040
    #error "pyca/cryptography MUST be linked with Openssl 1.1.1d or later"
#endif

#define CRYPTOGRAPHY_OPENSSL_300_OR_GREATER \
    (OPENSSL_VERSION_NUMBER >= 0x30000000 && !CRYPTOGRAPHY_IS_LIBRESSL)

#define CRYPTOGRAPHY_OPENSSL_LESS_THAN_111E \
    (OPENSSL_VERSION_NUMBER < 0x10101050 || CRYPTOGRAPHY_IS_LIBRESSL)
/* Ed25519 support is in all supported OpenSSLs as well as LibreSSL 3.7.0. */
#define CRYPTOGRAPHY_HAS_WORKING_ED25519 \
    (!CRYPTOGRAPHY_IS_LIBRESSL || \
    (CRYPTOGRAPHY_IS_LIBRESSL && !CRYPTOGRAPHY_LIBRESSL_LESS_THAN_370))
"""

TYPES = """
static const int CRYPTOGRAPHY_OPENSSL_300_OR_GREATER;

static const int CRYPTOGRAPHY_OPENSSL_LESS_THAN_111E;
static const int CRYPTOGRAPHY_HAS_WORKING_ED25519;

static const int CRYPTOGRAPHY_LIBRESSL_LESS_THAN_370;

static const int CRYPTOGRAPHY_IS_LIBRESSL;
static const int CRYPTOGRAPHY_IS_BORINGSSL;
"""

FUNCTIONS = """
"""

CUSTOMIZATIONS = """
"""