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Add Crypto custom class

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This commit is contained in:
Fabio Alessandrelli 2019-07-11 15:26:44 +02:00
parent c19871af6d
commit 1b36aa662c
4 changed files with 335 additions and 0 deletions
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38
core/crypto/SCsub Normal file
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@ -0,0 +1,38 @@
#!/usr/bin/env python
Import('env')
env_crypto = env.Clone()
is_builtin = env["builtin_mbedtls"]
has_module = env["module_mbedtls_enabled"]
if is_builtin or not has_module:
# Use our headers for builtin or if the module is not going to be compiled.
# We decided not to depend on system mbedtls just for these few files that can
# be easily extracted.
env_crypto.Prepend(CPPPATH=["#thirdparty/mbedtls/include"])
# MbedTLS core functions (for CryptoCore).
# If the mbedtls module is compiled we don't need to add the .c files with our
# custom config since they will be built by the module itself.
# Only if the module is not enabled, we must compile here the required sources
# to make a "light" build with only the necessary mbedtls files.
if not has_module:
env_thirdparty = env_crypto.Clone()
env_thirdparty.disable_warnings()
# Custom config file
env_thirdparty.Append(CPPDEFINES=[('MBEDTLS_CONFIG_FILE', '\\"thirdparty/mbedtls/include/godot_core_mbedtls_config.h\\"')])
thirdparty_mbedtls_dir = "#thirdparty/mbedtls/library/"
thirdparty_mbedtls_sources = [
"aes.c",
"base64.c",
"md5.c",
"sha1.c",
"sha256.c",
"godot_core_mbedtls_platform.c"
]
thirdparty_mbedtls_sources = [thirdparty_mbedtls_dir + file for file in thirdparty_mbedtls_sources]
env_thirdparty.add_source_files(env.core_sources, thirdparty_mbedtls_sources)
env_crypto.add_source_files(env.core_sources, "*.cpp")

170
core/crypto/crypto.cpp Normal file
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@ -0,0 +1,170 @@
/*************************************************************************/
/* crypto.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "crypto.h"
#include "core/engine.h"
#include "core/io/certs_compressed.gen.h"
#include "core/io/compression.h"
/// Resources
CryptoKey *(*CryptoKey::_create)() = NULL;
CryptoKey *CryptoKey::create() {
if (_create)
return _create();
return NULL;
}
void CryptoKey::_bind_methods() {
ClassDB::bind_method(D_METHOD("save", "path"), &CryptoKey::save);
ClassDB::bind_method(D_METHOD("load", "path"), &CryptoKey::load);
}
X509Certificate *(*X509Certificate::_create)() = NULL;
X509Certificate *X509Certificate::create() {
if (_create)
return _create();
return NULL;
}
void X509Certificate::_bind_methods() {
ClassDB::bind_method(D_METHOD("save", "path"), &X509Certificate::save);
ClassDB::bind_method(D_METHOD("load", "path"), &X509Certificate::load);
}
/// Crypto
void (*Crypto::_load_default_certificates)(String p_path) = NULL;
Crypto *(*Crypto::_create)() = NULL;
Crypto *Crypto::create() {
if (_create)
return _create();
return memnew(Crypto);
}
void Crypto::load_default_certificates(String p_path) {
if (_load_default_certificates)
_load_default_certificates(p_path);
}
void Crypto::_bind_methods() {
ClassDB::bind_method(D_METHOD("generate_random_bytes", "size"), &Crypto::generate_random_bytes);
ClassDB::bind_method(D_METHOD("generate_rsa", "size"), &Crypto::generate_rsa);
ClassDB::bind_method(D_METHOD("generate_self_signed_certificate", "key", "issuer_name", "not_before", "not_after"), &Crypto::generate_self_signed_certificate, DEFVAL("CN=myserver,O=myorganisation,C=IT"), DEFVAL("20140101000000"), DEFVAL("20340101000000"));
}
PoolByteArray Crypto::generate_random_bytes(int p_bytes) {
ERR_FAIL_V_MSG(PoolByteArray(), "generate_random_bytes is not available when mbedtls module is disabled.");
}
Ref<CryptoKey> Crypto::generate_rsa(int p_bytes) {
ERR_FAIL_V_MSG(NULL, "generate_rsa is not available when mbedtls module is disabled.");
}
Ref<X509Certificate> Crypto::generate_self_signed_certificate(Ref<CryptoKey> p_key, String p_issuer_name, String p_not_before, String p_not_after) {
ERR_FAIL_V_MSG(NULL, "generate_self_signed_certificate is not available when mbedtls module is disabled.");
}
Crypto::Crypto() {
}
/// Resource loader/saver
RES ResourceFormatLoaderCrypto::load(const String &p_path, const String &p_original_path, Error *r_error) {
String el = p_path.get_extension().to_lower();
if (el == "crt") {
X509Certificate *cert = X509Certificate::create();
if (cert)
cert->load(p_path);
return cert;
} else if (el == "key") {
CryptoKey *key = CryptoKey::create();
if (key)
key->load(p_path);
return key;
}
return NULL;
}
void ResourceFormatLoaderCrypto::get_recognized_extensions(List<String> *p_extensions) const {
p_extensions->push_back("crt");
p_extensions->push_back("key");
}
bool ResourceFormatLoaderCrypto::handles_type(const String &p_type) const {
return p_type == "X509Certificate" || p_type == "CryptoKey";
}
String ResourceFormatLoaderCrypto::get_resource_type(const String &p_path) const {
String el = p_path.get_extension().to_lower();
if (el == "crt")
return "X509Certificate";
else if (el == "key")
return "CryptoKey";
return "";
}
Error ResourceFormatSaverCrypto::save(const String &p_path, const RES &p_resource, uint32_t p_flags) {
Error err;
Ref<X509Certificate> cert = p_resource;
Ref<CryptoKey> key = p_resource;
if (cert.is_valid()) {
err = cert->save(p_path);
} else if (key.is_valid()) {
err = key->save(p_path);
} else {
ERR_FAIL_V(ERR_INVALID_PARAMETER);
}
ERR_FAIL_COND_V(err != OK, err);
return OK;
}
void ResourceFormatSaverCrypto::get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const {
const X509Certificate *cert = Object::cast_to<X509Certificate>(*p_resource);
const CryptoKey *key = Object::cast_to<CryptoKey>(*p_resource);
if (cert) {
p_extensions->push_back("crt");
}
if (key) {
p_extensions->push_back("key");
}
}
bool ResourceFormatSaverCrypto::recognize(const RES &p_resource) const {
return Object::cast_to<X509Certificate>(*p_resource) || Object::cast_to<CryptoKey>(*p_resource);
}

105
core/crypto/crypto.h Normal file
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@ -0,0 +1,105 @@
/*************************************************************************/
/* crypto.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#ifndef CRYPTO_H
#define CRYPTO_H
#include "core/reference.h"
#include "core/resource.h"
#include "core/io/resource_loader.h"
#include "core/io/resource_saver.h"
class CryptoKey : public Resource {
GDCLASS(CryptoKey, Resource);
protected:
static void _bind_methods();
static CryptoKey *(*_create)();
public:
static CryptoKey *create();
virtual Error load(String p_path) = 0;
virtual Error save(String p_path) = 0;
};
class X509Certificate : public Resource {
GDCLASS(X509Certificate, Resource);
protected:
static void _bind_methods();
static X509Certificate *(*_create)();
public:
static X509Certificate *create();
virtual Error load(String p_path) = 0;
virtual Error load_from_memory(const uint8_t *p_buffer, int p_len) = 0;
virtual Error save(String p_path) = 0;
};
class Crypto : public Reference {
GDCLASS(Crypto, Reference);
protected:
static void _bind_methods();
static Crypto *(*_create)();
static void (*_load_default_certificates)(String p_path);
public:
static Crypto *create();
static void load_default_certificates(String p_path);
virtual PoolByteArray generate_random_bytes(int p_bytes);
virtual Ref<CryptoKey> generate_rsa(int p_bytes);
virtual Ref<X509Certificate> generate_self_signed_certificate(Ref<CryptoKey> p_key, String p_issuer_name, String p_not_before, String p_not_after);
Crypto();
};
class ResourceFormatLoaderCrypto : public ResourceFormatLoader {
GDCLASS(ResourceFormatLoaderCrypto, ResourceFormatLoader);
public:
virtual RES load(const String &p_path, const String &p_original_path = "", Error *r_error = NULL);
virtual void get_recognized_extensions(List<String> *p_extensions) const;
virtual bool handles_type(const String &p_type) const;
virtual String get_resource_type(const String &p_path) const;
};
class ResourceFormatSaverCrypto : public ResourceFormatSaver {
GDCLASS(ResourceFormatSaverCrypto, ResourceFormatSaver);
public:
virtual Error save(const String &p_path, const RES &p_resource, uint32_t p_flags = 0);
virtual void get_recognized_extensions(const RES &p_resource, List<String> *p_extensions) const;
virtual bool recognize(const RES &p_resource) const;
};
#endif // CRYPTO_H

22
core/register_core_types.cpp
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@ -34,6 +34,7 @@
#include "core/class_db.h"
#include "core/compressed_translation.h"
#include "core/core_string_names.h"
#include "core/crypto/crypto.h"
#include "core/engine.h"
#include "core/func_ref.h"
#include "core/input_map.h"
@ -70,6 +71,8 @@ static Ref<ResourceFormatLoaderBinary> resource_loader_binary;
static Ref<ResourceFormatImporter> resource_format_importer;
static Ref<ResourceFormatLoaderImage> resource_format_image;
static Ref<TranslationLoaderPO> resource_format_po;
static Ref<ResourceFormatSaverCrypto> resource_format_saver_crypto;
static Ref<ResourceFormatLoaderCrypto> resource_format_loader_crypto;
static _ResourceLoader *_resource_loader = NULL;
static _ResourceSaver *_resource_saver = NULL;
@ -151,7 +154,18 @@ void register_core_types() {
ClassDB::register_class<StreamPeerTCP>();
ClassDB::register_class<TCP_Server>();
ClassDB::register_class<PacketPeerUDP>();
// Crypto
ClassDB::register_custom_instance_class<X509Certificate>();
ClassDB::register_custom_instance_class<CryptoKey>();
ClassDB::register_custom_instance_class<Crypto>();
ClassDB::register_custom_instance_class<StreamPeerSSL>();
resource_format_saver_crypto.instance();
ResourceSaver::add_resource_format_saver(resource_format_saver_crypto);
resource_format_loader_crypto.instance();
ResourceLoader::add_resource_format_loader(resource_format_loader_crypto);
ClassDB::register_virtual_class<IP>();
ClassDB::register_virtual_class<PacketPeer>();
ClassDB::register_class<PacketPeerStream>();
@ -211,6 +225,9 @@ void register_core_settings() {
ProjectSettings::get_singleton()->set_custom_property_info("network/limits/tcp/connect_timeout_seconds", PropertyInfo(Variant::INT, "network/limits/tcp/connect_timeout_seconds", PROPERTY_HINT_RANGE, "1,1800,1"));
GLOBAL_DEF_RST("network/limits/packet_peer_stream/max_buffer_po2", (16));
ProjectSettings::get_singleton()->set_custom_property_info("network/limits/packet_peer_stream/max_buffer_po2", PropertyInfo(Variant::INT, "network/limits/packet_peer_stream/max_buffer_po2", PROPERTY_HINT_RANGE, "0,64,1,or_greater"));
GLOBAL_DEF("network/ssl/certificates", "");
ProjectSettings::get_singleton()->set_custom_property_info("network/ssl/certificates", PropertyInfo(Variant::STRING, "network/ssl/certificates", PROPERTY_HINT_FILE, "*.crt"));
}
void register_core_singletons() {
@ -272,6 +289,11 @@ void unregister_core_types() {
ResourceLoader::remove_resource_format_loader(resource_format_po);
resource_format_po.unref();
ResourceSaver::remove_resource_format_saver(resource_format_saver_crypto);
resource_format_saver_crypto.unref();
ResourceLoader::remove_resource_format_loader(resource_format_loader_crypto);
resource_format_loader_crypto.unref();
if (ip)
memdelete(ip);