// this function is only allowed to be called right after successfully calculating the hashset (!) // will delete the hashset, after saving to free the memory bool CAICHRecoveryHashSet::SaveHashSet(){ if (m_eStatus != AICH_HASHSETCOMPLETE){ ASSERT( false ); return false; } if ( !m_pHashTree.m_bHashValid || m_pHashTree.m_nDataSize != m_pOwner->GetFileSize()){ ASSERT( false ); return false; } CSingleLock lockKnown2Met(&m_mutKnown2File, false); if (!lockKnown2Met.Lock(5000)){ return false; } CString fullpath = thePrefs.GetMuleDirectory(EMULE_CONFIGDIR); fullpath.Append(KNOWN2_MET_FILENAME); CSafeFile file; CFileException fexp; if (!file.Open(fullpath,CFile::modeCreate|CFile::modeReadWrite|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){ if (fexp.m_cause != CFileException::fileNotFound){ CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file")); TCHAR szError[MAX_CFEXP_ERRORMSG]; if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){ strError += _T(" - "); strError += szError; } theApp.QueueLogLine(true, _T("%s"), strError); } return false; } try { //setvbuf(file.m_pStream, NULL, _IOFBF, 16384); uint8 header = file.ReadUInt8(); if (header != KNOWN2_MET_VERSION){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } // first we check if the hashset we want to write is already stored if (m_liAICHHashsStored.Find(m_pHashTree.m_Hash) != NULL) { theApp.QueueDebugLogLine(false, _T("AICH Hashset to write should be already present in known2.met - %s"), m_pHashTree.m_Hash.GetString()); // this hashset if already available, no need to save it again return true; } /*CAICHHash CurrentHash; while (file.GetPosition() < nExistingSize){ CurrentHash.Read(&file); if (m_pHashTree.m_Hash == CurrentHash){ // this hashset if already available, no need to save it again return true; } nHashCount = file.ReadUInt32(); if (file.GetPosition() + nHashCount*HASHSIZE > nExistingSize){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } // skip the rest of this hashset file.Seek(nHashCount*HASHSIZE, CFile::current); }*/ // write hashset uint32 nExistingSize = (UINT)file.GetLength(); file.SeekToEnd(); m_pHashTree.m_Hash.Write(&file); uint32 nHashCount = (uint32)((PARTSIZE/EMBLOCKSIZE + ((PARTSIZE % EMBLOCKSIZE != 0)? 1 : 0)) * (m_pHashTree.m_nDataSize/PARTSIZE)); if (m_pHashTree.m_nDataSize % PARTSIZE != 0) nHashCount += (uint32)((m_pHashTree.m_nDataSize % PARTSIZE)/EMBLOCKSIZE + (((m_pHashTree.m_nDataSize % PARTSIZE) % EMBLOCKSIZE != 0)? 1 : 0)); file.WriteUInt32(nHashCount); if (!m_pHashTree.WriteLowestLevelHashs(&file, 0, true, true)){ // thats bad... really file.SetLength(nExistingSize); theApp.QueueDebugLogLine(true, _T("Failed to save HashSet: WriteLowestLevelHashs() failed!")); return false; } if (file.GetLength() != nExistingSize + (nHashCount+1)*HASHSIZE + 4){ // thats even worse file.SetLength(nExistingSize); theApp.QueueDebugLogLine(true, _T("Failed to save HashSet: Calculated and real size of hashset differ!")); return false; } CAICHRecoveryHashSet::AddStoredAICHHash(m_pHashTree.m_Hash); theApp.QueueDebugLogLine(false, _T("Successfully saved eMuleAC Hashset, %u Hashs + 1 Masterhash written"), nHashCount); file.Flush(); file.Close(); } catch(CFileException* error){ if (error->m_cause == CFileException::endOfFile) theApp.QueueLogLine(true, GetResString(IDS_ERR_MET_BAD), KNOWN2_MET_FILENAME); else{ TCHAR buffer[MAX_CFEXP_ERRORMSG]; error->GetErrorMessage(buffer, ARRSIZE(buffer)); theApp.QueueLogLine(true,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer); } error->Delete(); return false; } FreeHashSet(); return true; }
bool CAICHRecoveryHashSet::LoadHashSet(){ if (m_eStatus != AICH_HASHSETCOMPLETE){ ASSERT( false ); return false; } if ( !m_pHashTree.m_bHashValid || m_pHashTree.m_nDataSize != m_pOwner->GetFileSize() || m_pHashTree.m_nDataSize == 0){ ASSERT( false ); return false; } CString fullpath = thePrefs.GetMuleDirectory(EMULE_CONFIGDIR); fullpath.Append(KNOWN2_MET_FILENAME); CSafeFile file; CFileException fexp; if (!file.Open(fullpath,CFile::modeCreate|CFile::modeRead|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){ if (fexp.m_cause != CFileException::fileNotFound){ CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file")); TCHAR szError[MAX_CFEXP_ERRORMSG]; if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){ strError += _T(" - "); strError += szError; } theApp.QueueLogLine(true, _T("%s"), strError); } return false; } try { //setvbuf(file.m_pStream, NULL, _IOFBF, 16384); uint8 header = file.ReadUInt8(); if (header != KNOWN2_MET_VERSION){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } CAICHHash CurrentHash; uint32 nExistingSize = (UINT)file.GetLength(); uint32 nHashCount; while (file.GetPosition() < nExistingSize){ CurrentHash.Read(&file); if (m_pHashTree.m_Hash == CurrentHash){ // found Hashset uint32 nExpectedCount = (uint32)((PARTSIZE/EMBLOCKSIZE + ((PARTSIZE % EMBLOCKSIZE != 0)? 1 : 0)) * (m_pHashTree.m_nDataSize/PARTSIZE)); if (m_pHashTree.m_nDataSize % PARTSIZE != 0) nExpectedCount += (uint32)((m_pHashTree.m_nDataSize % PARTSIZE)/EMBLOCKSIZE + (((m_pHashTree.m_nDataSize % PARTSIZE) % EMBLOCKSIZE != 0)? 1 : 0)); nHashCount = file.ReadUInt32(); if (nHashCount != nExpectedCount){ theApp.QueueDebugLogLine(true, _T("Failed to load HashSet: Available Hashs and expected hashcount differ!")); return false; } //uint32 dbgPos = file.GetPosition(); if (!m_pHashTree.LoadLowestLevelHashs(&file)){ theApp.QueueDebugLogLine(true, _T("Failed to load HashSet: LoadLowestLevelHashs failed!")); return false; } //uint32 dbgHashRead = (file.GetPosition()-dbgPos)/HASHSIZE; if (!ReCalculateHash(false)){ theApp.QueueDebugLogLine(true, _T("Failed to load HashSet: Calculating loaded hashs failed!")); return false; } if (CurrentHash != m_pHashTree.m_Hash){ theApp.QueueDebugLogLine(true, _T("Failed to load HashSet: Calculated Masterhash differs from given Masterhash - hashset corrupt!")); return false; } return true; } nHashCount = file.ReadUInt32(); if (file.GetPosition() + nHashCount*HASHSIZE > nExistingSize){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } // skip the rest of this hashset file.Seek(nHashCount*HASHSIZE, CFile::current); } theApp.QueueDebugLogLine(true, _T("Failed to load HashSet: HashSet not found!")); } catch(CFileException* error){ if (error->m_cause == CFileException::endOfFile) theApp.QueueLogLine(true, GetResString(IDS_ERR_MET_BAD), KNOWN2_MET_FILENAME); else{ TCHAR buffer[MAX_CFEXP_ERRORMSG]; error->GetErrorMessage(buffer, ARRSIZE(buffer)); theApp.QueueLogLine(true,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer); } error->Delete(); } return false; }
int CAICHSyncThread::Run() { CUnregThreadAssist uta(m_nThreadID); if ( !theApp.emuledlg->IsRunning() ) return 0; // we need to keep a lock on this file while the thread is running CSingleLock lockKnown2Met(&CAICHHashSet::m_mutKnown2File); lockKnown2Met.Lock(); CSafeFile file; bool bJustCreated = ConvertToKnown2ToKnown264(&file); // we collect all masterhashs which we find in the known2.met and store them in a list CList<CAICHHash> liKnown2Hashs; CString fullpath = thePrefs.GetMuleDirectory(EMULE_CONFIGDIR); fullpath.Append(KNOWN2_MET_FILENAME); CFileException fexp; uint32 nLastVerifiedPos = 0; if (!bJustCreated && !file.Open(fullpath,CFile::modeCreate|CFile::modeReadWrite|CFile::modeNoTruncate|CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyNone, &fexp)){ if (fexp.m_cause != CFileException::fileNotFound){ CString strError(_T("Failed to load ") KNOWN2_MET_FILENAME _T(" file")); TCHAR szError[MAX_CFEXP_ERRORMSG]; if (fexp.GetErrorMessage(szError, ARRSIZE(szError))){ strError += _T(" - "); strError += szError; } LogError(LOG_STATUSBAR, _T("%s"), strError); } return false; } try { if (file.GetLength() >= 1){ uint8 header = file.ReadUInt8(); if (header != KNOWN2_MET_VERSION){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } //setvbuf(file.m_pStream, NULL, _IOFBF, 16384); uint32 nExistingSize = (UINT)file.GetLength(); uint32 nHashCount; while (file.GetPosition() < nExistingSize){ liKnown2Hashs.AddTail(CAICHHash(&file)); nHashCount = file.ReadUInt32(); if (file.GetPosition() + nHashCount*CAICHHash::GetHashSize() > nExistingSize){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } // skip the rest of this hashset file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current); nLastVerifiedPos = (UINT)file.GetPosition(); } } else file.WriteUInt8(KNOWN2_MET_VERSION); } catch(CFileException* error){ if (error->m_cause == CFileException::endOfFile){ LogError(LOG_STATUSBAR,GetResString(IDS_ERR_MET_BAD), KNOWN2_MET_FILENAME); // truncate the file to the size to the last verified valid pos try{ file.SetLength(nLastVerifiedPos); if (file.GetLength() == 0){ file.SeekToBegin(); file.WriteUInt8(KNOWN2_MET_VERSION); } } catch(CFileException* error2){ error2->Delete(); } } else{ TCHAR buffer[MAX_CFEXP_ERRORMSG]; error->GetErrorMessage(buffer, ARRSIZE(buffer)); LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer); } error->Delete(); return false; } // now we check that all files which are in the sharedfilelist have a corresponding hash in out list // those how don'T are added to the hashinglist CList<CAICHHash> liUsedHashs; CSingleLock sharelock(&theApp.sharedfiles->m_mutWriteList); sharelock.Lock(); for (int i = 0; i < theApp.sharedfiles->GetCount(); i++){ CKnownFile* pCurFile = theApp.sharedfiles->GetFileByIndex(i); if (pCurFile != NULL && !pCurFile->IsPartFile() ){ if (theApp.emuledlg==NULL || !theApp.emuledlg->IsRunning()) // in case of shutdown while still hashing return 0; if (pCurFile->GetAICHHashset()->GetStatus() == AICH_HASHSETCOMPLETE){ bool bFound = false; for (POSITION pos = liKnown2Hashs.GetHeadPosition();pos != 0;) { CAICHHash current_hash = liKnown2Hashs.GetNext(pos); if (current_hash == pCurFile->GetAICHHashset()->GetMasterHash()){ bFound = true; liUsedHashs.AddTail(current_hash); //theApp.QueueDebugLogLine(false, _T("%s - %s"), current_hash.GetString(), pCurFile->GetFileName()); #ifdef _DEBUG // in debugmode we load and verify all hashsets ASSERT( pCurFile->GetAICHHashset()->LoadHashSet() ); // pCurFile->GetAICHHashset()->DbgTest(); pCurFile->GetAICHHashset()->FreeHashSet(); #endif break; } } if (bFound) // hashset is available, everything fine with this file continue; } pCurFile->GetAICHHashset()->SetStatus(AICH_ERROR); m_liToHash.AddTail(pCurFile); } } sharelock.Unlock(); // removed all unused AICH hashsets from known2.met if (liUsedHashs.GetCount() != liKnown2Hashs.GetCount() && (!thePrefs.IsRememberingDownloadedFiles() || thePrefs.DoPartiallyPurgeOldKnownFiles())) { file.SeekToBegin(); try { uint8 header = file.ReadUInt8(); if (header != KNOWN2_MET_VERSION){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } uint32 nExistingSize = (UINT)file.GetLength(); uint32 nHashCount; ULONGLONG posWritePos = file.GetPosition(); ULONGLONG posReadPos = file.GetPosition(); uint32 nPurgeCount = 0; uint32 nPurgeBecauseOld = 0; while (file.GetPosition() < nExistingSize){ CAICHHash aichHash(&file); nHashCount = file.ReadUInt32(); if (file.GetPosition() + nHashCount*CAICHHash::GetHashSize() > nExistingSize){ AfxThrowFileException(CFileException::endOfFile, 0, file.GetFileName()); } if (!thePrefs.IsRememberingDownloadedFiles() && liUsedHashs.Find(aichHash) == NULL) { // unused hashset skip the rest of this hashset file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current); nPurgeCount++; } else if (thePrefs.IsRememberingDownloadedFiles() && theApp.knownfiles->ShouldPurgeAICHHashset(aichHash)) { ASSERT( thePrefs.DoPartiallyPurgeOldKnownFiles() ); // also unused (purged) hashset skip the rest of this hashset file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current); nPurgeCount++; nPurgeBecauseOld++; } else if(nPurgeCount == 0){ // used Hashset, but it does not need to be moved as nothing changed yet file.Seek(nHashCount*CAICHHash::GetHashSize(), CFile::current); posWritePos = file.GetPosition(); } else{ // used Hashset, move position in file BYTE* buffer = new BYTE[nHashCount*CAICHHash::GetHashSize()]; file.Read(buffer, nHashCount*CAICHHash::GetHashSize()); posReadPos = file.GetPosition(); file.Seek(posWritePos, CFile::begin); file.Write(aichHash.GetRawHash(), CAICHHash::GetHashSize()); file.WriteUInt32(nHashCount); file.Write(buffer, nHashCount*CAICHHash::GetHashSize()); delete[] buffer; posWritePos = file.GetPosition(); file.Seek(posReadPos, CFile::begin); } } posReadPos = file.GetPosition(); file.SetLength(posWritePos); theApp.QueueDebugLogLine(false, _T("Cleaned up known2.met, removed %u hashsets and purged %u hashsets of old known files (%s)") , nPurgeCount - nPurgeBecauseOld, nPurgeBecauseOld, CastItoXBytes(posReadPos-posWritePos)); file.Flush(); file.Close(); } catch(CFileException* error){ if (error->m_cause == CFileException::endOfFile){ // we just parsed this files some ms ago, should never happen here ASSERT( false ); } else{ TCHAR buffer[MAX_CFEXP_ERRORMSG]; error->GetErrorMessage(buffer, ARRSIZE(buffer)); LogError(LOG_STATUSBAR,GetResString(IDS_ERR_SERVERMET_UNKNOWN),buffer); } error->Delete(); return false; } } lockKnown2Met.Unlock(); // warn the user if he just upgraded if (thePrefs.IsFirstStart() && !m_liToHash.IsEmpty() && !bJustCreated){ LogWarning(GetResString(IDS_AICH_WARNUSER)); } if (!m_liToHash.IsEmpty()){ theApp.QueueLogLine(true, GetResString(IDS_AICH_SYNCTOTAL), m_liToHash.GetCount() ); theApp.emuledlg->sharedfileswnd->sharedfilesctrl.SetAICHHashing(m_liToHash.GetCount()); // let first all normal hashing be done before starting out synchashing CSingleLock sLock1(&theApp.hashing_mut); // only one filehash at a time while (theApp.sharedfiles->GetHashingCount() != 0){ Sleep(100); } sLock1.Lock(); uint32 cDone = 0; for (POSITION pos = m_liToHash.GetHeadPosition();pos != 0; cDone++) { if (theApp.emuledlg==NULL || !theApp.emuledlg->IsRunning()){ // in case of shutdown while still hashing return 0; } theApp.emuledlg->sharedfileswnd->sharedfilesctrl.SetAICHHashing(m_liToHash.GetCount()-cDone); if (theApp.emuledlg->sharedfileswnd->sharedfilesctrl.m_hWnd != NULL) theApp.emuledlg->sharedfileswnd->sharedfilesctrl.ShowFilesCount(); CKnownFile* pCurFile = m_liToHash.GetNext(pos); // just to be sure that the file hasnt been deleted lately if (!(theApp.knownfiles->IsKnownFile(pCurFile) && theApp.sharedfiles->GetFileByID(pCurFile->GetFileHash())) ) continue; theApp.QueueLogLine(false, GetResString(IDS_AICH_CALCFILE), pCurFile->GetFileName()); if(!pCurFile->CreateAICHHashSetOnly()) theApp.QueueDebugLogLine(false, _T("Failed to create AICH Hashset while sync. for file %s"), pCurFile->GetFileName()); } theApp.emuledlg->sharedfileswnd->sharedfilesctrl.SetAICHHashing(0); if (theApp.emuledlg->sharedfileswnd->sharedfilesctrl.m_hWnd != NULL) theApp.emuledlg->sharedfileswnd->sharedfilesctrl.ShowFilesCount(); sLock1.Unlock(); } theApp.QueueDebugLogLine(false, _T("AICHSyncThread finished")); return 0; }