103 lines
2.7 KiB
Plaintext
103 lines
2.7 KiB
Plaintext
|
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
|
||
|
|
*
|
||
|
|
* This library is open source and may be redistributed and/or modified under
|
||
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
||
|
|
* (at your option) any later version. The full license is in LICENSE file
|
||
|
|
* included with this distribution, and on the openscenegraph.org website.
|
||
|
|
*
|
||
|
|
* This library is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* OpenSceneGraph Public License for more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* This file is derived from the libb64 project which itself was released to public domain.
|
||
|
|
* For details, see http://sourceforge.net/projects/libb64. Original code by Chris Venter
|
||
|
|
* c++ wrapper for a base64 encoding and decoding algorithm
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef OSGDB_CONVERTBASE64_H
|
||
|
|
#define OSGDB_CONVERTBASE64_H 1
|
||
|
|
|
||
|
|
#include <iostream>
|
||
|
|
#include <string>
|
||
|
|
#include <vector>
|
||
|
|
|
||
|
|
#include <osgDB/Export>
|
||
|
|
|
||
|
|
namespace osgDB
|
||
|
|
{
|
||
|
|
const int BUFFERSIZE = 8192;
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
step_a, step_b, step_c, step_d
|
||
|
|
} base64_decodestep;
|
||
|
|
|
||
|
|
typedef enum
|
||
|
|
{
|
||
|
|
step_A, step_B, step_C
|
||
|
|
} base64_encodestep;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
base64_encodestep step;
|
||
|
|
char result;
|
||
|
|
int stepcount;
|
||
|
|
} base64_encodestate;
|
||
|
|
|
||
|
|
typedef struct
|
||
|
|
{
|
||
|
|
base64_decodestep step;
|
||
|
|
char plainchar;
|
||
|
|
} base64_decodestate;
|
||
|
|
|
||
|
|
class OSGDB_EXPORT Base64encoder
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
Base64encoder(int buffersize_in = BUFFERSIZE)
|
||
|
|
: _buffersize(buffersize_in)
|
||
|
|
{}
|
||
|
|
|
||
|
|
int encode(char value_in);
|
||
|
|
|
||
|
|
int encode(const char* code_in, const int length_in, char* plaintext_out);
|
||
|
|
|
||
|
|
int encode_end(char* plaintext_out);
|
||
|
|
|
||
|
|
void encode(std::istream& istream_in, std::ostream& ostream_in);
|
||
|
|
|
||
|
|
void encode(const char* chars_in, int length_in, std::string& code_out);
|
||
|
|
|
||
|
|
private:
|
||
|
|
base64_encodestate _state;
|
||
|
|
int _buffersize;
|
||
|
|
};
|
||
|
|
|
||
|
|
class OSGDB_EXPORT Base64decoder
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
Base64decoder(int buffersize_in = BUFFERSIZE)
|
||
|
|
: _buffersize(buffersize_in)
|
||
|
|
{}
|
||
|
|
|
||
|
|
int decode(char value_in);
|
||
|
|
|
||
|
|
int decode(const char* code_in, const int length_in, char* plaintext_out);
|
||
|
|
|
||
|
|
void decode(std::istream& istream_in, std::ostream& ostream_in);
|
||
|
|
|
||
|
|
// Decode strings, returns one char* of appropriate size
|
||
|
|
// Note that deallocation of char* is up to the caller of this method
|
||
|
|
char* decode(const std::vector<std::string>& str_in, std::vector<unsigned int>& pos_out);
|
||
|
|
|
||
|
|
private:
|
||
|
|
base64_decodestate _state;
|
||
|
|
int _buffersize;
|
||
|
|
};
|
||
|
|
|
||
|
|
} // namespace osgDB
|
||
|
|
|
||
|
|
#endif // BASE64_DECODE_H
|
||
|
|
|