CFriend::CFriend(CUpDownClient* client){
ASSERT ( client );
m_dwLastSeen = time(NULL);
m_dwLastUsedIP = client->GetIP();
m_nLastUsedPort = client->GetUserPort();
m_dwLastChatted = 0;
m_LinkedClient = NULL;
m_friendSlot = false;
SetLinkedClient(client);
}
CFriend::CFriend(CUpDownClient* client){
ASSERT ( client );
m_dwLastSeen = time(NULL);
m_dwLastUsedIP = client->GetIP();
m_nLastUsedPort = client->GetUserPort();
m_dwLastChatted = 0;
m_LinkedClient = NULL;
m_friendSlot = false;
m_FriendConnectState = FCS_NONE;
m_dwLastKadSearch = 0;
md4clr(m_abyKadID);
md4cpy(m_abyUserhash, client->GetUserHash());
SetLinkedClient(client);
}
CUpDownClient* CFriend::GetClientForChatSession()
{
CUpDownClient* pResult;
if (GetLinkedClient(true) != NULL)
pResult = GetLinkedClient(false);
else{
pResult = new CUpDownClient(0, m_nLastUsedPort, m_dwLastUsedIP, 0, 0, true);
pResult->SetUserName(m_strName);
pResult->SetUserHash(m_abyUserhash);
theApp.clientlist->AddClient(pResult);
SetLinkedClient(pResult);
}
pResult->SetChatState(MS_CHATTING);
return pResult;
};
void CFriend::UpdateFriendConnectionState(EFriendConnectReport eEvent)
{
/*#ifdef _DEBUG
CString strDbg;
strDbg.Format(_T("*** Debug: UpdateFriendConnectionState, Report: %u, CurrentState: %u \n"), eEvent, m_FriendConnectState);
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ReportConnectionProgress(GetLinkedClient(), strDbg, false);
#endif*/
if (m_FriendConnectState == FCS_NONE || GetLinkedClient(true) == NULL){
// we aren't currently trying to build up a friendconnection, we shouldn't be called
ASSERT( false );
return;
}
switch (eEvent){
case FCR_ESTABLISHED:
case FCR_USERHASHVERIFIED:
// connection established, userhash fits, check secureident
if (GetLinkedClient()->HasPassedSecureIdent(true)) {
// well here we are done, connecting worked out fine
m_FriendConnectState = FCS_NONE;
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ConnectingResult(GetLinkedClient(), true);
m_liConnectionReport.RemoveAll();
FindKadID(); // fetch the kadid of this friend if we don't have it already
}
else
{
ASSERT( eEvent != FCR_USERHASHVERIFIED );
// we connected, the userhash matches, now we wait for the authentification
// nothing todo, just report about it
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0; m_liConnectionReport.GetNext(pos)){
m_liConnectionReport.GetAt(pos)->ReportConnectionProgress(GetLinkedClient(), _T(" ...") + GetResString(IDS_TREEOPTIONS_OK) + _T("\n"), true);
m_liConnectionReport.GetAt(pos)->ReportConnectionProgress(GetLinkedClient(), _T("*** ") + CString(_T("Authenticating friend")) /*to stringlist*/, false);
}
if (m_FriendConnectState == FCS_CONNECTING)
m_FriendConnectState = FCS_AUTH;
else{ // client must have connected to use while we tried something else (like search for him an kad)
ASSERT( false );
m_FriendConnectState = FCS_AUTH;
}
}
break;
case FCR_DISCONNECTED:
// disconnected, lets see which state we were in
if (m_FriendConnectState == FCS_CONNECTING || m_FriendConnectState == FCS_AUTH){
if (m_FriendConnectState == FCS_CONNECTING && Kademlia::CKademlia::IsRunning()
&& Kademlia::CKademlia::IsConnected() && !isnulmd4(m_abyKadID)
&& (m_dwLastKadSearch == 0 || ::GetTickCount() - m_dwLastKadSearch > MIN2MS(10)))
{
// connecting failed to the last known IP, now we search kad for an updated IP of our friend
m_FriendConnectState = FCS_KADSEARCHING;
m_dwLastKadSearch = ::GetTickCount();
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0; m_liConnectionReport.GetNext(pos)){
m_liConnectionReport.GetAt(pos)->ReportConnectionProgress(GetLinkedClient(), _T(" ...") + GetResString(IDS_FAILED) + _T("\n"), true);
m_liConnectionReport.GetAt(pos)->ReportConnectionProgress(GetLinkedClient(), _T("*** ") + GetResString(IDS_SEARCHINGFRIENDKAD), false);
}
Kademlia::CKademlia::FindIPByNodeID(*this, m_abyKadID);
break;
}
m_FriendConnectState = FCS_NONE;
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ConnectingResult(GetLinkedClient(), false);
m_liConnectionReport.RemoveAll();
}
else // FCS_KADSEARCHING, shouldn't happen
ASSERT( false );
break;
case FCR_USERHASHFAILED:{
// the client we connected to, had a different userhash then we expected
// drop the linked client object and create a new one, because we don't want to have anything todo
// with this instance as it is not our friend which we try to connect to
// the connection try counts as failed
CUpDownClient* pOld = m_LinkedClient;
SetLinkedClient(NULL); // removing old one
GetClientForChatSession(); // creating new instance with the hash we search for
m_LinkedClient->SetChatState(MS_CONNECTING);
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;) // inform others about the change
m_liConnectionReport.GetNext(pos)->ClientObjectChanged(pOld, GetLinkedClient());
pOld->SetChatState(MS_NONE);
if (m_FriendConnectState == FCS_CONNECTING || m_FriendConnectState == FCS_AUTH){
ASSERT( m_FriendConnectState == FCS_AUTH );
// todo: kad here
m_FriendConnectState = FCS_NONE;
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ConnectingResult(GetLinkedClient(), false);
m_liConnectionReport.RemoveAll();
}
else // FCS_KADSEARCHING, shouldn't happen
ASSERT( false );
break;
}
case FCR_SECUREIDENTFAILED:
// the client has the fitting userhash, but failed secureident - so we don't want to talk to him
// we stop our search here in any case, multiple clientobjects with the same userhash would mess with other things
// and its unlikely that we would find him on kad in this case too
ASSERT( m_FriendConnectState == FCS_AUTH );
m_FriendConnectState = FCS_NONE;
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ConnectingResult(GetLinkedClient(), false);
m_liConnectionReport.RemoveAll();
break;
case FCR_DELETED:
// mh, this should actually never happen i'm sure
// todo: in any case, stop any connection tries, notify other etc
m_FriendConnectState = FCS_NONE;
for (POSITION pos = m_liConnectionReport.GetHeadPosition(); pos != 0;)
m_liConnectionReport.GetNext(pos)->ConnectingResult(GetLinkedClient(), false);
m_liConnectionReport.RemoveAll();
break;
default:
ASSERT( false );
}
}