abiword-garble.h

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/* -*- mode: C++; tab-width: 4; c-basic-offset: 4; -*- */

/* AbiSource
 *
 * Copyright (C) 2009 Marc 'Foddex' Oude Kotte <foddex@foddex.net>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include <libxml/parser.h>
#include <libxml/xmlwriter.h>
#include <string>
#include <vector>
#include <gsf/gsf-utils.h>
#include "ut_rand.h"
#include "ut_jpeg.h"
#include "ut_go_file.h"
#include "ut_bytebuf.h"
#include "png.h"
#include "xap_Module.h"
#include "xap_App.h"
#include "xav_View.h"
#include "ev_EditMethod.h"
#include "ap_Args.h"
#include <gsf/gsf-input.h>

using namespace std;

class abiword_garble;

class abiword_document {

    private:
        string              mFilename;
        xmlDocPtr           mDocument;
        abiword_garble*     mAbiGarble;
        size_t              mCharsGarbled;
        size_t              mImagesGarbled;
        string              mReplaceString; // just a string whose allocated memory is re-used for performance :-)

        void garble_node( xmlNodePtr node );
        void garble_image_node( xmlNodePtr node );
        bool garble_png( void*& data, size_t& size );
        bool garble_jpeg( void*& data, size_t& size );
        void garble_image_line( char* line, size_t bytes );
        char get_random_char();
    public:
        abiword_document( abiword_garble* abigarble, const string& filename );
        ~abiword_document();
        void garble();
        void save();
};

class abiword_garble {

    private:
        vector<string>      mFilenames;
        bool                mVerbose;
        bool                mInitialized;
        bool                mImageGarbling;

        void usage();
    public:
        abiword_garble( int argc, const char** argv );
        int run();
        bool verbose() const { return mVerbose; }
        bool initialized() const { return mInitialized; }
        bool image_garbling() const { return mImageGarbling; }
};