file_access_encrypted.h

#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<uint8_t> key;
    bool writing;
    FileAccess *file;
    size_t base;
    size_t length;
    Vector<uint8_t> data;
    mutable size_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); 
    virtual void close(); 
    virtual bool is_open() const; 

    virtual void seek(size_t p_position); 
    virtual void seek_end(int64_t p_position=0); 
    virtual size_t get_pos() const; 
    virtual size_t get_len() const; 

    virtual bool eof_reached() const; 

    virtual uint8_t get_8() const; 
    virtual int get_buffer(uint8_t *p_dst, int p_length) const;

    virtual Error get_error() const; 

    virtual void store_8(uint8_t p_dest); 
    virtual void store_buffer(const uint8_t *p_src,int p_length); 

    virtual bool file_exists(const String& p_name); 

    virtual uint64_t _get_modified_time(const String& p_file);

    FileAccessEncrypted();
    ~FileAccessEncrypted();
};

#endif // FILE_ACCESS_ENCRYPTED_H