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//=============================================================================
//
// 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) 2002-2005 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 opinion) 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 "kvi_module.h"
#include "kvi_debug.h"
#include "kvi_locale.h"
/*
@doc: lamerizer
@type:
module
@short:
The Lamerizer text transformation engine
@title:
The lamerizer module
@body:
This is an example of what you should NOT do with a text transformation
engine. Do NOT use it! :D
*/
#ifdef COMPILE_CRYPT_SUPPORT
#include "kvi_memmove.h"
#include "kvi_malloc.h"
#include "kvi_pointerlist.h"
static KviPointerList<KviCryptEngine> * g_pEngineList = 0;
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 : 7
0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , // 063 : ?
0 , '4' , '8' , 'C' , 'D' , '3' , 'F' , 'G' , // 071 : G
'H' , '|' , 'J' , 'K' , 'L' , 'm' , 'N' , 'O' , // 079 : O
'P' , 'q' , 'R' , '5' , '7' , 'U' , 'V' , 'W' , // 087 : W
'x' , 'Y' , '2' , 0 , 0 , 0 , 0 , 0 , // 095 : _
0 , '4' , 'b' , 'c' , 'd' , '3' , 'f' , '9' , // 103 : g
'h' , '|' , 'j' , 'k' , '1' , 'm' , 'n' , '0' ,
'p' , 'q' , 'r' , '5' , '7' , 'u' , 'v' , 'w' , // 119 : w
'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 : 7
0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , // 063 : ?
0 , '4' , 'B' , 'C' , 'D' , '3' , 'F' , 'G' , // 071 : G
'H' , '|' , 'J' , 'K' , 'L' , 'm' , 'N' , 'O' , // 079 : O
'P' , 'q' , 'R' , '5' , '7' , 'U' , 'V' , 'W' , // 087 : W
'x' , 'Y' , 'Z' , 0 , 0 , 0 , 0 , 0 , // 095 : _
0 , '4' , 'b' , 'c' , 'd' , '3' , 'f' , 'G' , // 103 : g
'h' , '|' , 'j' , 'k' , '1' , 'm' , 'n' , '0' ,
'p' , 'q' , 'r' , '5' , '7' , 'u' , 'v' , 'w' , // 119 : w
'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,KviStr &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,KviStr &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->szName = "Lamerizer";
d->szAuthor = "Szymon Stefanek and Jan Wagner";
d->szDescription = __tr2qs("A really lame text transformation engine :D");
d->iFlags = KVI_CRYPTENGINE_CAN_ENCRYPT;
d->allocFunc = allocLamerizerEngine;
d->deallocFunc = deallocLamerizerEngine;
m->registerCryptEngine(d);
d = new KviCryptEngineDescription;
d->szName = "LamerizerLight";
d->szAuthor = "Szymon Stefanek and Jan Wagner";
d->szDescription = __tr2qs("A really lame text transformation engine: Light Version.");
d->iFlags = KVI_CRYPTENGINE_CAN_ENCRYPT;
d->allocFunc = allocLightLamerizerEngine;
d->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 = 0;
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
}
// =======================================
// plugin definition structure
// =======================================
KVIRC_MODULE(
"Lamerizer crypt engine",
"1.0.1",
"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
)
#ifdef COMPILE_CRYPT_SUPPORT
#include "libkvilamerizer.moc"
#endif
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