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Relintai 2023-12-17 20:11:13 +01:00
parent 59a6cc90f4
commit 69853a3f68
10 changed files with 1 additions and 530 deletions
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1
core/bind/core_bind.cpp
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@ -6,7 +6,6 @@
#include "core/config/project_settings.h" #include "core/config/project_settings.h"
#include "core/crypto/crypto_core.h" #include "core/crypto/crypto_core.h"
#include "core/io/file_access_encrypted.h"
#include "core/io/json.h" #include "core/io/json.h"
#include "core/io/marshalls.h" #include "core/io/marshalls.h"
#include "core/math/geometry.h" #include "core/math/geometry.h"

81
core/io/config_file.cpp
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@ -4,7 +4,6 @@
#include "config_file.h" #include "config_file.h"
#include "core/io/file_access_encrypted.h"
#include "core/os/keyboard.h" #include "core/os/keyboard.h"
#include "core/variant/variant_parser.h" #include "core/variant/variant_parser.h"
@ -111,43 +110,6 @@ Error ConfigFile::save(const String &p_path) {
return _internal_save(file); return _internal_save(file);
} }
Error ConfigFile::save_encrypted(const String &p_path, const Vector<uint8_t> &p_key) {
Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::WRITE, &err);
if (err) {
return err;
}
FileAccessEncrypted *fae = memnew(FileAccessEncrypted);
err = fae->open_and_parse(f, p_key, FileAccessEncrypted::MODE_WRITE_AES256);
if (err) {
memdelete(fae);
memdelete(f);
return err;
}
return _internal_save(fae);
}
Error ConfigFile::save_encrypted_pass(const String &p_path, const String &p_pass) {
Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::WRITE, &err);
if (err) {
return err;
}
FileAccessEncrypted *fae = memnew(FileAccessEncrypted);
err = fae->open_and_parse_password(f, p_pass, FileAccessEncrypted::MODE_WRITE_AES256);
if (err) {
memdelete(fae);
memdelete(f);
return err;
}
return _internal_save(fae);
}
Error ConfigFile::_internal_save(FileAccess *file) { Error ConfigFile::_internal_save(FileAccess *file) {
for (OrderedHashMap<String, OrderedHashMap<String, Variant>>::Element E = values.front(); E; E = E.next()) { for (OrderedHashMap<String, OrderedHashMap<String, Variant>>::Element E = values.front(); E; E = E.next()) {
if (E != values.front()) { if (E != values.front()) {
@ -178,43 +140,6 @@ Error ConfigFile::load(const String &p_path) {
return _internal_load(p_path, f); return _internal_load(p_path, f);
} }
Error ConfigFile::load_encrypted(const String &p_path, const Vector<uint8_t> &p_key) {
Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
if (err) {
return err;
}
FileAccessEncrypted *fae = memnew(FileAccessEncrypted);
err = fae->open_and_parse(f, p_key, FileAccessEncrypted::MODE_READ);
if (err) {
memdelete(fae);
memdelete(f);
return err;
}
return _internal_load(p_path, fae);
}
Error ConfigFile::load_encrypted_pass(const String &p_path, const String &p_pass) {
Error err;
FileAccess *f = FileAccess::open(p_path, FileAccess::READ, &err);
if (err) {
return err;
}
FileAccessEncrypted *fae = memnew(FileAccessEncrypted);
err = fae->open_and_parse_password(f, p_pass, FileAccessEncrypted::MODE_READ);
if (err) {
memdelete(fae);
memdelete(f);
return err;
}
return _internal_load(p_path, fae);
}
Error ConfigFile::_internal_load(const String &p_path, FileAccess *f) { Error ConfigFile::_internal_load(const String &p_path, FileAccess *f) {
VariantParser::StreamFile stream; VariantParser::StreamFile stream;
stream.f = f; stream.f = f;
@ -285,11 +210,5 @@ void ConfigFile::_bind_methods() {
ClassDB::bind_method(D_METHOD("parse", "data"), &ConfigFile::parse); ClassDB::bind_method(D_METHOD("parse", "data"), &ConfigFile::parse);
ClassDB::bind_method(D_METHOD("save", "path"), &ConfigFile::save); ClassDB::bind_method(D_METHOD("save", "path"), &ConfigFile::save);
ClassDB::bind_method(D_METHOD("load_encrypted", "path", "key"), &ConfigFile::load_encrypted);
ClassDB::bind_method(D_METHOD("load_encrypted_pass", "path", "password"), &ConfigFile::load_encrypted_pass);
ClassDB::bind_method(D_METHOD("save_encrypted", "path", "key"), &ConfigFile::save_encrypted);
ClassDB::bind_method(D_METHOD("save_encrypted_pass", "path", "password"), &ConfigFile::save_encrypted_pass);
ClassDB::bind_method(D_METHOD("clear"), &ConfigFile::clear); ClassDB::bind_method(D_METHOD("clear"), &ConfigFile::clear);
} }

6
core/io/config_file.h
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@ -42,12 +42,6 @@ public:
Error parse(const String &p_data); Error parse(const String &p_data);
void clear(); void clear();
Error load_encrypted(const String &p_path, const Vector<uint8_t> &p_key);
Error load_encrypted_pass(const String &p_path, const String &p_pass);
Error save_encrypted(const String &p_path, const Vector<uint8_t> &p_key);
Error save_encrypted_pass(const String &p_path, const String &p_pass);
}; };
#endif // CONFIG_FILE_H #endif // CONFIG_FILE_H

29
core/io/dtls_server.cpp
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@ -1,29 +0,0 @@
/* dtls_server.cpp */
#include "dtls_server.h"
#include "core/os/file_access.h"
#include "core/config/project_settings.h"
DTLSServer *(*DTLSServer::_create)() = nullptr;
bool DTLSServer::available = false;
DTLSServer *DTLSServer::create() {
if (_create) {
return _create();
}
return nullptr;
}
bool DTLSServer::is_available() {
return available;
}
void DTLSServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("setup", "key", "certificate", "chain"), &DTLSServer::setup, DEFVAL(Ref<X509Certificate>()));
ClassDB::bind_method(D_METHOD("take_connection", "udp_peer"), &DTLSServer::take_connection);
}
DTLSServer::DTLSServer() {
}

30
core/io/dtls_server.h
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@ -1,30 +0,0 @@
#ifndef DTLS_SERVER_H
#define DTLS_SERVER_H
/* dtls_server.h */
#include "core/io/net_socket.h"
#include "core/io/packet_peer_dtls.h"
class DTLSServer : public Reference {
GDCLASS(DTLSServer, Reference);
protected:
static DTLSServer *(*_create)();
static void _bind_methods();
static bool available;
public:
static bool is_available();
static DTLSServer *create();
virtual Error setup(Ref<CryptoKey> p_key, Ref<X509Certificate> p_cert, Ref<X509Certificate> p_ca_chain = Ref<X509Certificate>()) = 0;
virtual void stop() = 0;
virtual Ref<PacketPeerDTLS> take_connection(Ref<PacketPeerUDP> p_peer) = 0;
DTLSServer();
};
#endif // DTLS_SERVER_H

283
core/io/file_access_encrypted.cpp
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@ -1,283 +0,0 @@
/* file_access_encrypted.cpp */
#include "file_access_encrypted.h"
#include "core/crypto/crypto_core.h"
#include "core/string/print_string.h"
#include "core/variant/variant.h"
#include <stdio.h>
#define COMP_MAGIC 0x43454447
Error FileAccessEncrypted::open_and_parse(FileAccess *p_base, const Vector<uint8_t> &p_key, Mode p_mode) {
ERR_FAIL_COND_V_MSG(file != nullptr, ERR_ALREADY_IN_USE, "Can't open file while another file from path '" + file->get_path_absolute() + "' is open.");
ERR_FAIL_COND_V(p_key.size() != 32, ERR_INVALID_PARAMETER);
pos = 0;
eofed = false;
if (p_mode == MODE_WRITE_AES256) {
data.clear();
writing = true;
file = p_base;
mode = p_mode;
key = p_key;
} else if (p_mode == MODE_READ) {
writing = false;
key = p_key;
uint32_t magic = p_base->get_32();
ERR_FAIL_COND_V(magic != COMP_MAGIC, ERR_FILE_UNRECOGNIZED);
mode = Mode(p_base->get_32());
ERR_FAIL_INDEX_V(mode, MODE_MAX, ERR_FILE_CORRUPT);
ERR_FAIL_COND_V(mode == 0, ERR_FILE_CORRUPT);
unsigned char md5d[16];
p_base->get_buffer(md5d, 16);
length = p_base->get_64();
base = p_base->get_position();
ERR_FAIL_COND_V(p_base->get_len() < base + length, ERR_FILE_CORRUPT);
uint64_t ds = length;
if (ds % 16) {
ds += 16 - (ds % 16);
}
data.resize(ds);
uint64_t blen = p_base->get_buffer(data.ptrw(), ds);
ERR_FAIL_COND_V(blen != ds, ERR_FILE_CORRUPT);
CryptoCore::AESContext ctx;
ctx.set_decode_key(key.ptrw(), 256);
for (uint64_t i = 0; i < ds; i += 16) {
ctx.decrypt_ecb(&data.write[i], &data.write[i]);
}
data.resize(length);
unsigned char hash[16];
ERR_FAIL_COND_V(CryptoCore::md5(data.ptr(), data.size(), hash) != OK, ERR_BUG);
ERR_FAIL_COND_V_MSG(String::md5(hash) != String::md5(md5d), ERR_FILE_CORRUPT, "The MD5 sum of the decrypted file does not match the expected value. It could be that the file is corrupt, or that the provided decryption key is invalid.");
file = p_base;
}
return OK;
}
Error FileAccessEncrypted::open_and_parse_password(FileAccess *p_base, const String &p_key, Mode p_mode) {
String cs = p_key.md5_text();
ERR_FAIL_COND_V(cs.length() != 32, ERR_INVALID_PARAMETER);
Vector<uint8_t> key;
key.resize(32);
for (int i = 0; i < 32; i++) {
key.write[i] = cs[i];
}
return open_and_parse(p_base, key, p_mode);
}
Error FileAccessEncrypted::_open(const String &p_path, int p_mode_flags) {
return OK;
}
void FileAccessEncrypted::close() {
if (!file) {
return;
}
if (writing) {
Vector<uint8_t> compressed;
uint64_t len = data.size();
if (len % 16) {
len += 16 - (len % 16);
}
unsigned char hash[16];
ERR_FAIL_COND(CryptoCore::md5(data.ptr(), data.size(), hash) != OK); // Bug?
compressed.resize(len);
memset(compressed.ptrw(), 0, len);
for (int i = 0; i < data.size(); i++) {
compressed.write[i] = data[i];
}
CryptoCore::AESContext ctx;
ctx.set_encode_key(key.ptrw(), 256);
for (uint64_t i = 0; i < len; i += 16) {
ctx.encrypt_ecb(&compressed.write[i], &compressed.write[i]);
}
file->store_32(COMP_MAGIC);
file->store_32(mode);
file->store_buffer(hash, 16);
file->store_64(data.size());
file->store_buffer(compressed.ptr(), compressed.size());
file->close();
memdelete(file);
file = nullptr;
data.clear();
} else {
file->close();
memdelete(file);
data.clear();
file = nullptr;
}
}
bool FileAccessEncrypted::is_open() const {
return file != nullptr;
}
String FileAccessEncrypted::get_path() const {
if (file) {
return file->get_path();
} else {
return "";
}
}
String FileAccessEncrypted::get_path_absolute() const {
if (file) {
return file->get_path_absolute();
} else {
return "";
}
}
void FileAccessEncrypted::seek(uint64_t p_position) {
if (p_position > get_len()) {
p_position = get_len();
}
pos = p_position;
eofed = false;
}
void FileAccessEncrypted::seek_end(int64_t p_position) {
seek(get_len() + p_position);
}
uint64_t FileAccessEncrypted::get_position() const {
return pos;
}
uint64_t FileAccessEncrypted::get_len() const {
return data.size();
}
bool FileAccessEncrypted::eof_reached() const {
return eofed;
}
uint8_t FileAccessEncrypted::get_8() const {
ERR_FAIL_COND_V_MSG(writing, 0, "File has not been opened in read mode.");
if (pos >= get_len()) {
eofed = true;
return 0;
}
uint8_t b = data[pos];
pos++;
return b;
}
uint64_t FileAccessEncrypted::get_buffer(uint8_t *p_dst, uint64_t p_length) const {
ERR_FAIL_COND_V(!p_dst && p_length > 0, -1);
ERR_FAIL_COND_V_MSG(writing, -1, "File has not been opened in read mode.");
uint64_t to_copy = MIN(p_length, get_len() - pos);
for (uint64_t i = 0; i < to_copy; i++) {
p_dst[i] = data[pos++];
}
if (to_copy < p_length) {
eofed = true;
}
return to_copy;
}
Error FileAccessEncrypted::get_error() const {
return eofed ? ERR_FILE_EOF : OK;
}
void FileAccessEncrypted::store_buffer(const uint8_t *p_src, uint64_t p_length) {
ERR_FAIL_COND_MSG(!writing, "File has not been opened in write mode.");
ERR_FAIL_COND(!p_src && p_length > 0);
if (pos < get_len()) {
for (uint64_t i = 0; i < p_length; i++) {
store_8(p_src[i]);
}
} else if (pos == get_len()) {
data.resize(pos + p_length);
for (uint64_t i = 0; i < p_length; i++) {
data.write[pos + i] = p_src[i];
}
pos += p_length;
}
}
void FileAccessEncrypted::flush() {
ERR_FAIL_COND_MSG(!writing, "File has not been opened in write mode.");
// encrypted files keep data in memory till close()
}
void FileAccessEncrypted::store_8(uint8_t p_dest) {
ERR_FAIL_COND_MSG(!writing, "File has not been opened in write mode.");
if (pos < get_len()) {
data.write[pos] = p_dest;
pos++;
} else if (pos == get_len()) {
data.push_back(p_dest);
pos++;
}
}
bool FileAccessEncrypted::file_exists(const String &p_name) {
FileAccess *fa = FileAccess::open(p_name, FileAccess::READ);
if (!fa) {
return false;
}
memdelete(fa);
return true;
}
uint64_t FileAccessEncrypted::_get_modified_time(const String &p_file) {
return 0;
}
uint32_t FileAccessEncrypted::_get_unix_permissions(const String &p_file) {
return 0;
}
Error FileAccessEncrypted::_set_unix_permissions(const String &p_file, uint32_t p_permissions) {
ERR_PRINT("Setting UNIX permissions on encrypted files is not implemented yet.");
return ERR_UNAVAILABLE;
}
FileAccessEncrypted::FileAccessEncrypted() {
file = nullptr;
pos = 0;
eofed = false;
mode = MODE_MAX;
writing = false;
}
FileAccessEncrypted::~FileAccessEncrypted() {
if (file) {
close();
}
}

65
core/io/file_access_encrypted.h
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@ -1,65 +0,0 @@
#ifndef FILE_ACCESS_ENCRYPTED_H
#define FILE_ACCESS_ENCRYPTED_H
/* file_access_encrypted.h */
#include "core/os/file_access.h"
class FileAccessEncrypted : public FileAccess {
public:
enum Mode {
MODE_READ,
MODE_WRITE_AES256,
MODE_MAX
};
private:
Mode mode;
Vector<uint8_t> key;
bool writing;
FileAccess *file;
uint64_t base;
uint64_t length;
Vector<uint8_t> data;
mutable uint64_t pos;
mutable bool eofed;
public:
Error open_and_parse(FileAccess *p_base, const Vector<uint8_t> &p_key, Mode p_mode);
Error open_and_parse_password(FileAccess *p_base, const String &p_key, Mode p_mode);
virtual Error _open(const String &p_path, int p_mode_flags); ///< open a file
virtual void close(); ///< close a file
virtual bool is_open() const; ///< true when file is open
virtual String get_path() const; /// returns the path for the current open file
virtual String get_path_absolute() const; /// returns the absolute path for the current open file
virtual void seek(uint64_t p_position); ///< seek to a given position
virtual void seek_end(int64_t p_position = 0); ///< seek from the end of file
virtual uint64_t get_position() const; ///< get position in the file
virtual uint64_t get_len() const; ///< get size of the file
virtual bool eof_reached() const; ///< reading passed EOF
virtual uint8_t get_8() const; ///< get a byte
virtual uint64_t get_buffer(uint8_t *p_dst, uint64_t p_length) const;
virtual Error get_error() const; ///< get last error
virtual void flush();
virtual void store_8(uint8_t p_dest); ///< store a byte
virtual void store_buffer(const uint8_t *p_src, uint64_t p_length); ///< store an array of bytes
virtual bool file_exists(const String &p_name); ///< return true if a file exists
virtual uint64_t _get_modified_time(const String &p_file);
virtual uint32_t _get_unix_permissions(const String &p_file);
virtual Error _set_unix_permissions(const String &p_file, uint32_t p_permissions);
FileAccessEncrypted();
~FileAccessEncrypted();
};
#endif // FILE_ACCESS_ENCRYPTED_H

2
core/register_core_types.cpp
View File

@ -15,7 +15,6 @@
#include "core/input/input.h" #include "core/input/input.h"
#include "core/input/input_map.h" #include "core/input/input_map.h"
#include "core/io/config_file.h" #include "core/io/config_file.h"
#include "core/io/dtls_server.h"
#include "core/io/http_client.h" #include "core/io/http_client.h"
#include "core/io/image_loader.h" #include "core/io/image_loader.h"
#include "core/io/marshalls.h" #include "core/io/marshalls.h"
@ -142,7 +141,6 @@ void register_core_types() {
ClassDB::register_class<PacketPeerUDP>(); ClassDB::register_class<PacketPeerUDP>();
ClassDB::register_class<UDPServer>(); ClassDB::register_class<UDPServer>();
ClassDB::register_custom_instance_class<PacketPeerDTLS>(); ClassDB::register_custom_instance_class<PacketPeerDTLS>();
ClassDB::register_custom_instance_class<DTLSServer>();
// Crypto // Crypto
ClassDB::register_class<HashingContext>(); ClassDB::register_class<HashingContext>();

31
modules/gdscript/gdscript.cpp
View File

@ -8,7 +8,6 @@
#include "core/config/project_settings.h" #include "core/config/project_settings.h"
#include "core/core_string_names.h" #include "core/core_string_names.h"
#include "core/global_constants.h" #include "core/global_constants.h"
#include "core/io/file_access_encrypted.h"
#include "core/os/file_access.h" #include "core/os/file_access.h"
#include "core/os/os.h" #include "core/os/os.h"
#include "gdscript_compiler.h" #include "gdscript_compiler.h"
@ -703,37 +702,7 @@ Vector<uint8_t> GDScript::get_as_byte_code() const {
Error GDScript::load_byte_code(const String &p_path) { Error GDScript::load_byte_code(const String &p_path) {
Vector<uint8_t> bytecode; Vector<uint8_t> bytecode;
if (p_path.ends_with("gde")) {
FileAccess *fa = FileAccess::open(p_path, FileAccess::READ);
ERR_FAIL_COND_V(!fa, ERR_CANT_OPEN);
FileAccessEncrypted *fae = memnew(FileAccessEncrypted);
ERR_FAIL_COND_V(!fae, ERR_CANT_OPEN);
Vector<uint8_t> key;
key.resize(32);
for (int i = 0; i < key.size(); i++) {
key.write[i] = script_encryption_key[i];
}
Error err = fae->open_and_parse(fa, key, FileAccessEncrypted::MODE_READ);
if (err) {
fa->close();
memdelete(fa);
memdelete(fae);
ERR_FAIL_COND_V(err, err);
}
bytecode.resize(fae->get_len());
fae->get_buffer(bytecode.ptrw(), bytecode.size());
fae->close();
memdelete(fae);
} else {
bytecode = FileAccess::get_file_as_array(p_path); bytecode = FileAccess::get_file_as_array(p_path);
}
ERR_FAIL_COND_V(bytecode.size() == 0, ERR_PARSE_ERROR); ERR_FAIL_COND_V(bytecode.size() == 0, ERR_PARSE_ERROR);
path = p_path; path = p_path;

1
modules/gdscript/register_types.cpp
View File

@ -4,7 +4,6 @@
#include "register_types.h" #include "register_types.h"
#include "core/io/file_access_encrypted.h"
#include "core/io/resource_loader.h" #include "core/io/resource_loader.h"
#include "core/os/dir_access.h" #include "core/os/dir_access.h"
#include "core/os/file_access.h" #include "core/os/file_access.h"