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/*
Basic History plugin
Copyright (C) 2011-2012 Krzysztof Kral
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 version 2
of the License.
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, see <http://www.gnu.org/licenses/>.
*/
#include "StdAfx.h"
#include "BinaryExport.h"
#define EXP_FILE (*((std::ofstream*)IExport::stream))
#define IMP_FILE (*((std::ifstream*)IImport::stream))
std::wstring GetProtocolName(HANDLE hContact);
std::wstring GetContactId(HANDLE hContact);
#pragma pack(push, 1)
struct BinaryFileHeader
{
unsigned char signature[4];
unsigned char version;
unsigned char extraFlags;
unsigned short int reserved;
unsigned int codepage;
unsigned short int dataStart;
};
struct BinaryFileMessageHeader
{
DWORD timestamp;
WORD eventType;
WORD flags;
};
#pragma pack(pop)
BinaryExport::~BinaryExport()
{
}
void BinaryExport::WriteString(const std::wstring &str)
{
int conv = WideCharToMultiByte(codepage, 0, str.c_str(), (int)str.length() + 1, NULL, 0, NULL, NULL);
char* buf = new char[conv];
conv = WideCharToMultiByte(codepage, 0, str.c_str(), (int)str.length() + 1, buf, conv, NULL, NULL);
EXP_FILE.write(buf, conv);
delete[] buf;
}
bool BinaryExport::ReadString(std::wstring &str)
{
std::string buf;
int size = 1024;
int pos = 0;
int totalSize = 0;
while(true) {
buf.resize(size);
if (IMP_FILE.peek() == 0) {
IMP_FILE.get();
break;
}
IMP_FILE.get(((char*)buf.c_str()) + pos, size - pos, 0);
if (!IMP_FILE.good())
return false;
int readed = IMP_FILE.gcount();
totalSize += readed;
char end;
IMP_FILE.get(end);
if (!IMP_FILE.good())
return false;
if (end == 0)
break;
if (size - pos - 1 != readed)
return false;
buf[size - 1] = end;
++totalSize;
size += 1024;
pos += 1024;
}
if (totalSize == 0)
return true;
int sizeW = MultiByteToWideChar(codepage, 0, (char*)buf.c_str(), totalSize, NULL, 0);
str.resize(sizeW);
MultiByteToWideChar(codepage, 0, (char*)buf.c_str(), totalSize, (wchar_t*)str.c_str(), sizeW);
return true;
}
void BinaryExport::WriteHeader(const std::wstring &fileName, const std::wstring &filterName, const std::wstring &myName, const std::wstring &myId, const std::wstring &name1, const std::wstring &proto1, const std::wstring &id1, const std::string& baseProto1, const std::wstring& encoding)
{
BinaryFileHeader header;
memset(&header, 0, sizeof(BinaryFileHeader));
memcpy(header.signature, "BHBF", 4);
header.codepage = codepage = CP_UTF8;
EXP_FILE.write((char*)&header, sizeof(BinaryFileHeader));
WriteString(filterName);
WriteString(myName);
WriteString(myId);
WriteString(name1);
WriteString(proto1);
WriteString(id1);
size_t pos = EXP_FILE.tellp();
header.dataStart = (unsigned short)pos;
EXP_FILE.seekp(offsetof(BinaryFileHeader, dataStart), std::ios_base::beg);
EXP_FILE.write((char*)&(header.dataStart), sizeof(header.dataStart));
EXP_FILE.seekp(pos, std::ios_base::beg);
lTime = 0;
}
void BinaryExport::WriteFooter()
{
}
void BinaryExport::WriteGroup(bool isMe, const std::wstring &time, const std::wstring &user, const std::wstring &eventText)
{
}
void BinaryExport::WriteMessage(bool isMe, const std::wstring &longDate, const std::wstring &shortDate, const std::wstring &user, const std::wstring &message, const DBEVENTINFO& dbei)
{
if (dbei.timestamp >= lTime) {
BinaryFileMessageHeader header;
header.eventType = dbei.eventType;
header.flags = dbei.flags & (~(0x800));
header.timestamp = dbei.timestamp;
EXP_FILE.write((char*)&header, sizeof(BinaryFileMessageHeader));
WriteString(message);
lTime = dbei.timestamp;
}
}
bool ReadHeader(BinaryFileHeader& header, std::istream* stream)
{
stream->read((char*)&header, sizeof(BinaryFileHeader));
if (!stream->good())
return false;
if (memcmp(header.signature, "BHBF", 4) != 0)
return false;
if (header.version != 0 || header.codepage == 12000 || header.codepage == 12001)
return false;
return true;
}
int BinaryExport::IsContactInFile(const std::vector<HANDLE>& contacts)
{
BinaryFileHeader header;
if (!ReadHeader(header, IImport::stream))
return -2;
codepage = header.codepage;
std::wstring filterName;
std::wstring myName;
std::wstring myId;
std::wstring name1;
std::wstring proto1;
std::wstring id1;
if (!ReadString(filterName))
return -2;
if (!ReadString(myName))
return -2;
if (!ReadString(myId))
return -2;
if (!ReadString(name1))
return -2;
if (!ReadString(proto1))
return -2;
if (!ReadString(id1))
return -2;
size_t pos = IMP_FILE.tellg();
if (header.dataStart < pos)
return -2;
IMP_FILE.seekg(0, std::ios_base::beg);
for (int i = 0; i < (int)contacts.size(); ++i) {
std::wstring pn = GetProtocolName(contacts[i]);
std::wstring id = GetContactId(contacts[i]);
if (pn == proto1 && id == id1)
return i;
}
return -1;
}
bool BinaryExport::GetEventList(std::vector<IImport::ExternalMessage>& eventList)
{
BinaryFileHeader header;
if (!ReadHeader(header, IImport::stream))
return false;
codepage = header.codepage;
IMP_FILE.seekg(header.dataStart, std::ios_base::beg);
BinaryFileMessageHeader messageHeader;
while(true) {
IMP_FILE.read((char*)&messageHeader, sizeof(BinaryFileMessageHeader));
if (IMP_FILE.eof())
break;
if (!IMP_FILE.good())
return false;
IImport::ExternalMessage exMsg;
exMsg.eventType = messageHeader.eventType;
exMsg.flags = messageHeader.flags;
exMsg.timestamp = messageHeader.timestamp;
if (!ReadString(exMsg.message))
return false;
eventList.push_back(exMsg);
}
return true;
}
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