//
// The developer of the original code and/or files is Tripwire, Inc.
// Portions created by Tripwire, Inc. are copyright (C) 2000 Tripwire,
// Inc. Tripwire is a registered trademark of Tripwire, Inc.  All rights
// reserved.
// 
// This program is free software.  The contents of this file are subject
// to 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.  You may redistribute it and/or modify it
// only in compliance with the GNU General Public License.
// 
// This program is distributed in the hope that it will be useful.
// However, this program is distributed AS-IS WITHOUT ANY
// WARRANTY; INCLUDING THE IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS
// FOR A PARTICULAR PURPOSE.  Please 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 
// Nothing in the GNU General Public License or any other license to use
// the code or files shall permit you to use Tripwire's trademarks,
// service marks, or other intellectual property without Tripwire's
// prior written consent.
// 
// If you have any questions, please contact Tripwire, Inc. at either
// info@tripwire.org or www.tripwire.org.
//

#include "fco/stdfco.h"
#include <stdio.h>
#include <iostream>
#include "fco/signature.h"
#include "core/tchar.h"
#include "twtest/test.h"
#include "core/errorgeneral.h"
#include "core/serializerimpl.h"
#include "core/crc32.h"
#include "core/archive.h"

using namespace std;

void TestSignature()
{
    // Signature usage example (?)
    cCRC32Signature     crcSig;
	cDebug				d("TestSignature");

    byte abData[ 64 ];
    int i;
    for( i = 0; i < 64; i++ )
        abData[i] = static_cast< byte >( rand() );

    crcSig.Init();
    crcSig.Update( &abData[0], 32 );
    crcSig.Update( &abData[32], 32 );
    crcSig.Finit();
    TCOUT << _T("new way: ") << crcSig.AsString() << endl;

    cMemoryArchive arch;
    arch.WriteBlob( &abData[0], 32 );
    arch.WriteBlob( &abData[32], 32 );
    arch.Seek( 0, cBidirArchive::BEGINNING );
    cCRC32Signature crc;
    cArchiveSigGen asg;
    asg.AddSig( &crc );
    asg.CalculateSignatures( arch );

    TCOUT << _T("old way: ") << crc.AsString() << endl;


	// Note: The following causes an ASSERT() in iSignature::Compare(), as it should, but
	// we don't want asserts to occur in a working test suite!
//    TEST(nullSig.Compare(&checksumSig, iFCOProp::OP_EQ) == iFCOProp::CMP_WRONG_PROP_TYPE);


    
	// Create a file for which we know the signatures
    //
    //% siggen ~/signature_test.bin 
    //crc      : AAAAAAAAAAy
    //md5      : B/Y8ttBnlyw/NPCUu353ao
    //crc32    : B1kP9v
    //sha      : Oia1aljHD793tfj7M55tND+3OG/
    //haval    : BL6bFSo0EP5zf8lGSueeed

    TSTRING sigFileName = TEMP_DIR;
    sigFileName += TSTRING( _T("/signature_test.bin") );

    cFileArchive fileArc;
    fileArc.OpenReadWrite(sigFileName.c_str());
    fileArc.WriteBlob("\x1\x2\x3\x4\x5\x6\x7\x8\x9\x0", 10);
    fileArc.Close();


	// test begins here

	// general signature & archive variables
	byte abBuf[iSignature::SUGGESTED_BLOCK_SIZE];
	const int cbToRead = iSignature::SUGGESTED_BLOCK_SIZE;
	int cbRead;

	
	// test checksum
	cChecksumSignature check1, check2;
	d.TraceDetail("Testing checksum.\n");

	// check1
	fileArc.OpenRead(sigFileName.c_str());
	check1.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		check1.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	check1.Finit();
	fileArc.Close();

	// check2
	fileArc.OpenRead(sigFileName.c_str());
	check2.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		check2.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	check2.Finit();
	fileArc.Close();

	// compare to each other and the known values
	TEST(check1.Compare(&check2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	TEST(check1.AsString().compare(_T("AAAAAAAAAAt")) == 0);

	// test write capabilities
	{
		cMemoryArchive sigArchive;
		cSerializerImpl writeSer(sigArchive, cSerializerImpl::S_WRITE);
		check1.Write(&writeSer);
		sigArchive.Seek(0, cBidirArchive::BEGINNING);
		cSerializerImpl readSer(sigArchive, cSerializerImpl::S_READ);
		check2.Read(&readSer);
		TEST(check1.Compare(&check2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	}

	
	// test CRC32
	cCRC32Signature crc1, crc2;
	d.TraceDetail("Testing CRC32.\n");

	// crc1
	fileArc.OpenRead(sigFileName.c_str());
	crc1.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		crc1.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	crc1.Finit();
	fileArc.Close();

	// crc2
	fileArc.OpenRead(sigFileName.c_str());
	crc2.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		crc2.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	crc2.Finit();
	fileArc.Close();

	// compare to each other and the known values
	TEST(crc1.Compare(&crc2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	TEST(crc1.AsString().compare(_T("B1kP9v")) == 0);
	TEST(crc1.AsStringHex().compare(_T("7590ff6f")) == 0);

	// test write capabilities
	{
		cMemoryArchive sigArchive;
		cSerializerImpl writeSer(sigArchive, cSerializerImpl::S_WRITE);
		crc1.Write(&writeSer);
		sigArchive.Seek(0, cBidirArchive::BEGINNING);
		cSerializerImpl readSer(sigArchive, cSerializerImpl::S_READ);
		crc2.Read(&readSer);
		TEST(crc1.Compare(&crc2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	}


	// test MD5
	cMD5Signature md51, md52;
	d.TraceDetail("Testing MD5.\n");

	// md51
	fileArc.OpenRead(sigFileName.c_str());
	md51.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		md51.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	md51.Finit();
	fileArc.Close();

	// md52
	fileArc.OpenRead(sigFileName.c_str());
	md52.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		md52.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	md52.Finit();
	fileArc.Close();

	// compare to each other and the known values
	TEST(md51.Compare(&md52, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	TEST(md51.AsString().compare(_T("B/Y8ttBnlyw/NPCUu353ao")) == 0);
	TEST(md51.AsStringHex().compare(_T("7f63cb6d067972c3f34f094bb7e776a8")) == 0);

	// test write capabilities
	{
		cMemoryArchive sigArchive;
		cSerializerImpl writeSer(sigArchive, cSerializerImpl::S_WRITE);
		md51.Write(&writeSer);
		sigArchive.Seek(0, cBidirArchive::BEGINNING);
		cSerializerImpl readSer(sigArchive, cSerializerImpl::S_READ);
		md52.Read(&readSer);
		TEST(md51.Compare(&md52, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	}


	// test SHA
	cSHASignature sha1, sha2;
	d.TraceDetail("Testing SHA.\n");

	// sha1
	fileArc.OpenRead(sigFileName.c_str());
	sha1.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		sha1.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	sha1.Finit();
	fileArc.Close();

	// sha2
	fileArc.OpenRead(sigFileName.c_str());
	sha2.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		sha2.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	sha2.Finit();
	fileArc.Close();

	// compare to each other and the known values
	TEST(sha1.Compare(&sha2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	TEST(sha1.AsString().compare(_T("Oia1aljHD793tfj7M55tND+3OG/")) == 0);
	TEST(sha1.AsStringHex().compare(_T("e89ad5a9631c3efdded7e3ecce79b4d0fedce1bf")) == 0);

	// test write capabilities
	{
		cMemoryArchive sigArchive;
		cSerializerImpl writeSer(sigArchive, cSerializerImpl::S_WRITE);
		sha1.Write(&writeSer);
		sigArchive.Seek(0, cBidirArchive::BEGINNING);
		cSerializerImpl readSer(sigArchive, cSerializerImpl::S_READ);
		sha2.Read(&readSer);
		TEST(sha1.Compare(&sha2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	}

	
	// test HAVAL
	cHAVALSignature haval1, haval2;
	d.TraceDetail("Testing HAVAL.\n");

	// haval1
	fileArc.OpenRead(sigFileName.c_str());
	haval1.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		haval1.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	haval1.Finit();
	fileArc.Close();

	// haval2
	fileArc.OpenRead(sigFileName.c_str());
	haval2.Init();
	do
	{
		cbRead = fileArc.ReadBlob( abBuf, cbToRead );
		haval2.Update( abBuf, cbRead );
	}
	while ( cbRead == cbToRead );
	haval2.Finit();
	fileArc.Close();

	// compare to each other and the known values
	TEST(haval1.Compare(&haval2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	TEST(haval1.AsString().compare(_T("BL6bFSo0EP5zf8lGSueeed")) == 0);
	TEST(haval1.AsStringHex().compare(_T("4be9b152a3410fe737fc9464ae79e79d")) == 0);

	// test write capabilities
	{
		cMemoryArchive sigArchive;
		cSerializerImpl writeSer(sigArchive, cSerializerImpl::S_WRITE);
		haval1.Write(&writeSer);
		sigArchive.Seek(0, cBidirArchive::BEGINNING);
		cSerializerImpl readSer(sigArchive, cSerializerImpl::S_READ);
		md52.Read(&readSer);
		TEST(haval1.Compare(&haval2, iFCOProp::OP_EQ) == iFCOProp::CMP_TRUE);
	}
	

	// test cArchiveSigGen
	cArchiveSigGen asgtest;
	cCRC32Signature crc3;
	cMD5Signature md53;
	cSHASignature sha3;
	cHAVALSignature haval3;
	d.TraceDetail("Testing cArchiveSigGen\n");
	
	asgtest.AddSig( &crc3 );
	asgtest.AddSig( &md53 );
	asgtest.AddSig( &sha3 );
	asgtest.AddSig( &haval3 );
	
	// calculate the signatures
	fileArc.OpenRead(sigFileName.c_str());
	fileArc.Seek( 0, cBidirArchive::BEGINNING );
	
	asgtest.CalculateSignatures( fileArc );

	// compare to known values
	TEST(crc3.AsString().compare(_T("B1kP9v")) == 0);
	TEST(crc3.AsStringHex().compare(_T("7590ff6f")) == 0);
	TEST(md53.AsString().compare(_T("B/Y8ttBnlyw/NPCUu353ao")) == 0);
	TEST(md53.AsStringHex().compare(_T("7f63cb6d067972c3f34f094bb7e776a8")) == 0);
	TEST(sha3.AsString().compare(_T("Oia1aljHD793tfj7M55tND+3OG/")) == 0);
	TEST(sha3.AsStringHex().compare(_T("e89ad5a9631c3efdded7e3ecce79b4d0fedce1bf")) == 0);
	TEST(haval3.AsString().compare(_T("BL6bFSo0EP5zf8lGSueeed")) == 0);
	TEST(haval3.AsStringHex().compare(_T("4be9b152a3410fe737fc9464ae79e79d")) == 0);
	
	fileArc.Close();	

	return;
}