void CRoutingZone::ReadFile(const wxString& specialNodesdat)
{
if (m_superZone != NULL || (m_filename.IsEmpty() && specialNodesdat.IsEmpty())) {
wxFAIL;
return;
}
bool doHaveVerifiedContacts = false;
// Read in the saved contact list
try {
uint32_t numContacts = 0;
uint32_t validContacts = 0;
CFile file;
if (CPath::FileExists(specialNodesdat.IsEmpty() ? m_filename : specialNodesdat) && file.Open(m_filename, CFile::read)) {
// Get how many contacts in the saved list.
// NOTE: Older clients put the number of contacts here...
// Newer clients always have 0 here to prevent older clients from reading it.
numContacts = file.ReadUInt32();
uint32_t fileVersion = 0;
if (numContacts == 0) {
if (file.GetLength() >= 8) {
fileVersion = file.ReadUInt32();
if (fileVersion == 3) {
uint32_t bootstrapEdition = file.ReadUInt32();
if (bootstrapEdition == 1) {
// this is a special bootstrap-only nodes.dat, handle it in a separate reading function
ReadBootstrapNodesDat(file);
file.Close();
return;
}
}
if (fileVersion >= 1 && fileVersion <= 3) {
numContacts = file.ReadUInt32();
}
}
} else {
// Don't read version 0 nodes.dat files, because they can't tell the kad version of the contacts stored.
AddLogLineC(_("Failed to read nodes.dat file - too old. This version (0) is not supported anymore."));
numContacts = 0;
}
DEBUG_ONLY( unsigned kad1Count = 0; )
if (numContacts != 0 && numContacts * 25 <= (file.GetLength() - file.GetPosition())) {
for (uint32_t i = 0; i < numContacts; i++) {
CUInt128 id = file.ReadUInt128();
uint32_t ip = file.ReadUInt32();
uint16_t udpPort = file.ReadUInt16();
uint16_t tcpPort = file.ReadUInt16();
uint8_t contactVersion = 0;
contactVersion = file.ReadUInt8();
CKadUDPKey kadUDPKey;
bool verified = false;
if (fileVersion >= 2) {
kadUDPKey.ReadFromFile(file);
verified = file.ReadUInt8() != 0;
if (verified) {
doHaveVerifiedContacts = true;
}
}
// IP appears valid
if (contactVersion > 1) {
if(IsGoodIPPort(wxUINT32_SWAP_ALWAYS(ip),udpPort)) {
if (!theApp->ipfilter->IsFiltered(wxUINT32_SWAP_ALWAYS(ip)) &&
!(udpPort == 53 && contactVersion <= 5 /*No DNS Port without encryption*/)) {
// This was not a dead contact, inc counter if add was successful
if (AddUnfiltered(id, ip, udpPort, tcpPort, contactVersion, kadUDPKey, verified, false, false)) {
validContacts++;
}
}
}
} else {
DEBUG_ONLY( kad1Count++; )
}
}
}
file.Close();
AddLogLineN(CFormat(wxPLURAL("Read %u Kad contact", "Read %u Kad contacts", validContacts)) % validContacts);
#ifdef __DEBUG__
if (kad1Count > 0) {
AddDebugLogLineN(logKadRouting, CFormat(wxT("Ignored %u kad1 %s in nodes.dat file.")) % kad1Count % (kad1Count > 1 ? wxT("contacts"): wxT("contact")));
}
#endif
if (!doHaveVerifiedContacts) {
AddDebugLogLineN(logKadRouting, wxT("No verified contacts found in nodes.dat - might be an old file version. Setting all contacts verified for this time to speed up Kad bootstrapping."));
SetAllContactsVerified();
}
}
void CRoutingZone::ReadFile(CString strSpecialNodesdate)
{
if (m_pSuperZone != NULL || (m_sFilename.IsEmpty() && strSpecialNodesdate.IsEmpty())){
ASSERT( false );
return;
}
bool bDoHaveVerifiedContacts = false;
// Read in the saved contact list.
try
{
CSafeBufferedFile file;
CFileException fexp;
if (file.Open(strSpecialNodesdate.IsEmpty() ? m_sFilename : strSpecialNodesdate, CFile::modeRead | CFile::osSequentialScan|CFile::typeBinary|CFile::shareDenyWrite, &fexp))
{
setvbuf(file.m_pStream, NULL, _IOFBF, 32768);
// Get how many contacts in the saved list.
// NOTE: Older clients put the number of contacts here..
// Newer clients always have 0 here to prevent older clients from reading it.
uint32_t uNumContacts = file.ReadUInt32();
uint32_t uVersion = 0;
if (uNumContacts == 0)
{
if (file.GetLength() >= 8){
uVersion = file.ReadUInt32();
if (uVersion == 3){
uint32_t nBoostrapEdition = file.ReadUInt32();
if (nBoostrapEdition == 1){
// this is a special bootstrap-only nodes.dat, handle it in a seperate reading function
ReadBootstrapNodesDat(file);
file.Close();
return;
}
}
if(uVersion >= 1 && uVersion <= 3) // those version we know, others we ignore
uNumContacts = file.ReadUInt32();
}
else
AddDebugLogLine( false, GetResString(IDS_ERR_KADCONTACTS));
}
if (uNumContacts != 0 && uNumContacts * 25 <= (file.GetLength() - file.GetPosition()))
{
// Hide contact list in the GUI
theApp.emuledlg->kademliawnd->HideContacts();
uint32_t uValidContacts = 0;
CUInt128 uID;
while ( uNumContacts )
{
file.ReadUInt128(&uID);
uint32_t uIP = file.ReadUInt32();
uint16_t uUDPPort = file.ReadUInt16();
uint16_t uTCPPort = file.ReadUInt16();
byte byType = 0;
uint8_t uContactVersion = 0;
if(uVersion >= 1)
uContactVersion = file.ReadUInt8();
else
byType = file.ReadUInt8();
CKadUDPKey kadUDPKey;
bool bVerified = false;
if(uVersion >= 2){
kadUDPKey.ReadFromFile(file);
bVerified = file.ReadUInt8() != 0;
if (bVerified)
bDoHaveVerifiedContacts = true;
}
// IP Appears valid
if( byType < 4)
{
uint32_t uhostIP = ntohl(uIP);
if (::IsGoodIPPort(uhostIP, uUDPPort))
{
if (::theApp.ipfilter->IsFiltered(uhostIP))
{
if (::thePrefs.GetLogFilteredIPs())
AddDebugLogLine(false, _T("Ignored kad contact (IP=%s:%u)--read known.dat -- - IP filter (%s)") , ipstr(uhostIP), uUDPPort, ::theApp.ipfilter->GetLastHit());
}
else if (uUDPPort == 53 && uContactVersion <= KADEMLIA_VERSION5_48a) /*No DNS Port without encryption*/
{
if (::thePrefs.GetLogFilteredIPs())
AddDebugLogLine(false, _T("Ignored kad contact (IP=%s:%u)--read known.dat") , ipstr(uhostIP), uUDPPort);
}
else
{
// This was not a dead contact, Inc counter if add was successful
if (AddUnfiltered(uID, uIP, uUDPPort, uTCPPort, uContactVersion, kadUDPKey, bVerified, false, true, false))
uValidContacts++;
}
}
}
uNumContacts--;
}
AddLogLine( false, GetResString(IDS_KADCONTACTSREAD), uValidContacts);
if (!bDoHaveVerifiedContacts){
DebugLogWarning(_T("No verified contacts found in nodes.dat - might be an old file version. Setting all contacts verified for this time to speed up Kad bootstrapping"));
SetAllContactsVerified();
}
}
file.Close();
}
else
DebugLogWarning(_T("Unable to read Kad file: %s"), m_sFilename);
}
catch (CFileException* e)
{
e->Delete();
DebugLogError(_T("CFileException in CRoutingZone::readFile"));
}
// Show contact list in GUI
theApp.emuledlg->kademliawnd->ShowContacts();
}
