/*************************************************************************/ /* file_access_encrypted.h */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2018 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 FILE_ACCESS_ENCRYPTED_H #define FILE_ACCESS_ENCRYPTED_H #include "os/file_access.h" class FileAccessEncrypted : public FileAccess { public: enum Mode { MODE_READ, MODE_WRITE_AES256, MODE_MAX }; private: Mode mode; Vector key; bool writing; FileAccess *file; size_t base; size_t length; Vector data; mutable int pos; mutable bool eofed; public: Error open_and_parse(FileAccess *p_base, const Vector &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 void seek(size_t p_position); ///< seek to a given position virtual void seek_end(int64_t p_position = 0); ///< seek from the end of file virtual size_t get_position() const; ///< get position in the file virtual size_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 int get_buffer(uint8_t *p_dst, int 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, int 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 uint64_t _get_creation_time(const String &p_file); // NEW FUNCTION FileAccessEncrypted(); ~FileAccessEncrypted(); }; #endif // FILE_ACCESS_ENCRYPTED_H