//=============================================================================
//
// File : libkvilamerizer.cpp
// Creation date : Sat Jan 20 2002 17:06:12 CEST by Szymon Stefanek
//
// This file is part of the KVIrc IRC client distribution
// Copyright (C) 2002-2010 Szymon Stefanek (pragma at kvirc dot 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 "libkvilamerizer.h"
#include "KviModule.h"
#include "kvi_debug.h"
#include "KviLocale.h"
/*
@doc: lamerizer
@type:
module
@short:
The Lamerizer text transformation engine
@title:
The lamerizer module
@body:
This is an example of what you should [b]not[/b] do with a text transformation
engine. Do [b]not[/b] use it! :D
*/
#ifdef COMPILE_CRYPT_SUPPORT
#include "KviMemory.h"
#include "KviPointerList.h"
#include "KviCryptEngineDescription.h"
static KviPointerList<KviCryptEngine> * g_pEngineList = nullptr;
KviLamerizerEngine::KviLamerizerEngine(bool bLight)
: KviCryptEngine()
{
m_bLight = bLight;
g_pEngineList->append(this);
}
KviLamerizerEngine::~KviLamerizerEngine()
{
g_pEngineList->removeRef(this);
}
bool KviLamerizerEngine::init(const char *, int, const char *, int)
{
return true;
}
static char subst_table[256] = {
0, 0, 0, 0, 0, 0, 0, 0, // 007
0, 0, 0, 0, 0, 0, 0, 0, // 015
0, 0, 0, 0, 0, 0, 0, 0, // 023
0, 0, 0, 0, 0, 0, 0, 0, // 031
0, 0, 0, 0, 0, 0, 0, 0, // 039 :
0, 0, 0, 0, 0, 0, 0, 0, // 047 :
0, 0, 0, 0, 0, 0, 0, 0, // 055 :
0, 0, 0, 0, 0, 0, 0, 0, // 063 :
0, '4', '8', 'C', 'D', '3', 'F', 'G', // 071 :
'H', '|', 'J', 'K', 'L', 'm', 'N', 'O', // 079 :
'P', 'q', 'R', '5', '7', 'U', 'V', 'W', // 087 :
'x', 'Y', '2', 0, 0, 0, 0, 0, // 095 :
0, '4', 'b', 'c', 'd', '3', 'f', '9', // 103 :
'h', '|', 'j', 'k', '1', 'm', 'n', '0',
'p', 'q', 'r', '5', '7', 'u', 'v', 'w', // 119 :
'x', 'y', '2', 0, 0, 0, 0, 0, // 127 :
0, 0, 0, 0, 0, 0, 0, 0, // 135 :
0, 0, 0, 0, 0, 0, 0, 0, // 143 :
0, 0, 0, 0, 0, 0, 0, 0, // 151 :
0, 0, 0, 0, 0, 0, 0, 0, // 159 :
0, 0, 0, 0, 0, 0, 0, 0, // 167 :
0, 0, 0, 0, 0, 0, 0, 0, // 175 :
0, 0, 0, 0, 0, 0, 0, 0, // 183 :
0, 0, 0, 0, 0, 0, 0, 0, // 191 :
0, 0, 0, 0, 0, 0, 0, 0, // 199 :
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, // 215 :
0, 0, 0, 0, 0, 0, 0, 0, // 223 :
0, 0, 0, 0, 0, 0, 0, 0, // 231 :
0, 0, 0, 0, 0, 0, 0, 0, // 239 :
0, 0, 0, 0, 0, 0, 0, 0, // 247 :
0, 0, 0, 0, 0, 0, 0, 0
};
static char subst_table_light[256] = {
0, 0, 0, 0, 0, 0, 0, 0, // 007
0, 0, 0, 0, 0, 0, 0, 0, // 015
0, 0, 0, 0, 0, 0, 0, 0, // 023
0, 0, 0, 0, 0, 0, 0, 0, // 031
0, 0, 0, 0, 0, 0, 0, 0, // 039 :
0, 0, 0, 0, 0, 0, 0, 0, // 047 :
0, 0, 0, 0, 0, 0, 0, 0, // 055 :
0, 0, 0, 0, 0, 0, 0, 0, // 063 :
0, '4', 'B', 'C', 'D', '3', 'F', 'G', // 071 :
'H', '|', 'J', 'K', 'L', 'm', 'N', 'O', // 079 :
'P', 'q', 'R', '5', '7', 'U', 'V', 'W', // 087 :
'x', 'Y', 'Z', 0, 0, 0, 0, 0, // 095 :
0, '4', 'b', 'c', 'd', '3', 'f', 'G', // 103 :
'h', '|', 'j', 'k', '1', 'm', 'n', '0',
'p', 'q', 'r', '5', '7', 'u', 'v', 'w', // 119 :
'x', 'y', 'z', 0, 0, 0, 0, 0, // 127 :
0, 0, 0, 0, 0, 0, 0, 0, // 135 :
0, 0, 0, 0, 0, 0, 0, 0, // 143 :
0, 0, 0, 0, 0, 0, 0, 0, // 151 :
0, 0, 0, 0, 0, 0, 0, 0, // 159 :
0, 0, 0, 0, 0, 0, 0, 0, // 167 :
0, 0, 0, 0, 0, 0, 0, 0, // 175 :
0, 0, 0, 0, 0, 0, 0, 0, // 183 :
0, 0, 0, 0, 0, 0, 0, 0, // 191 :
0, 0, 0, 0, 0, 0, 0, 0, // 199 :
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, // 215 :
0, 0, 0, 0, 0, 0, 0, 0, // 223 :
0, 0, 0, 0, 0, 0, 0, 0, // 231 :
0, 0, 0, 0, 0, 0, 0, 0, // 239 :
0, 0, 0, 0, 0, 0, 0, 0, // 247 :
0, 0, 0, 0, 0, 0, 0, 0
};
KviCryptEngine::EncryptResult KviLamerizerEngine::encrypt(const char * plainText, KviCString & outBuffer)
{
outBuffer = plainText;
unsigned char * aux = (unsigned char *)outBuffer.ptr();
if(m_bLight)
{
while(*aux)
{
if(subst_table_light[*aux])
{
*aux = subst_table_light[*aux];
}
aux++;
}
}
else
{
while(*aux)
{
if(subst_table[*aux])
{
*aux = subst_table[*aux];
}
aux++;
}
}
if(!m_bLight)
{
outBuffer.replaceAll("F", "Ph");
outBuffer.replaceAll("V", "\\/");
}
return KviCryptEngine::Encoded;
}
KviCryptEngine::DecryptResult KviLamerizerEngine::decrypt(const char * inBuffer, KviCString & plainText)
{
plainText = inBuffer;
return KviCryptEngine::DecryptOkWasPlainText;
}
static KviCryptEngine * allocLamerizerEngine()
{
return new KviLamerizerEngine(false);
}
static KviCryptEngine * allocLightLamerizerEngine()
{
return new KviLamerizerEngine(true);
}
static void deallocLamerizerEngine(KviCryptEngine * e)
{
delete e;
}
#endif
//
// module routines
//
static bool lamerizer_module_init(KviModule * m)
{
#ifdef COMPILE_CRYPT_SUPPORT
g_pEngineList = new KviPointerList<KviCryptEngine>;
g_pEngineList->setAutoDelete(false);
// FIXME: Maybe convert this repeated code to a function eh ?
KviCryptEngineDescription * d = new KviCryptEngineDescription;
d->m_szName = "Lamerizer";
d->m_szAuthor = "Szymon Stefanek and Jan Wagner";
d->m_szDescription = __tr2qs("A really lame text transformation engine :D");
d->m_iFlags = KviCryptEngine::CanEncrypt;
d->m_allocFunc = allocLamerizerEngine;
d->m_deallocFunc = deallocLamerizerEngine;
m->registerCryptEngine(d);
d = new KviCryptEngineDescription;
d->m_szName = "LamerizerLight";
d->m_szAuthor = "Szymon Stefanek and Jan Wagner";
d->m_szDescription = __tr2qs("A really lame text transformation engine: Light Version.");
d->m_iFlags = KviCryptEngine::CanEncrypt;
d->m_allocFunc = allocLightLamerizerEngine;
d->m_deallocFunc = deallocLamerizerEngine;
m->registerCryptEngine(d);
return true;
#else
return false;
#endif
}
static bool lamerizer_module_cleanup(KviModule * m)
{
#ifdef COMPILE_CRYPT_SUPPORT
while(g_pEngineList->first())
delete g_pEngineList->first();
delete g_pEngineList;
g_pEngineList = nullptr;
m->unregisterCryptEngines();
return true;
#else
return false;
#endif
}
static bool lamerizer_module_can_unload(KviModule *)
{
#ifdef COMPILE_CRYPT_SUPPORT
return g_pEngineList->isEmpty();
#else
return true;
#endif
}
KVIRC_MODULE(
"Lamerizer crypt engine",
"4.0.0",
"Szymon Stefanek <pragma at kvirc dot net> \n Jan Wagner <istari@kvirc.net>",
"Exports the lamerizer text transformation engine",
lamerizer_module_init,
lamerizer_module_can_unload,
0,
lamerizer_module_cleanup,
0)
