int CRealControlSocket::ContinueConnect()
{
wxString host;
unsigned int port = 0;
const int proxy_type = m_pEngine->GetOptions()->GetOptionVal(OPTION_PROXY_TYPE);
if (proxy_type > CProxySocket::unknown && proxy_type < CProxySocket::proxytype_count && !m_pCurrentServer->GetBypassProxy())
{
LogMessage(::Status, _("Connecting to %s through proxy"), m_pCurrentServer->FormatHost().c_str());
host = m_pEngine->GetOptions()->GetOption(OPTION_PROXY_HOST);
port = m_pEngine->GetOptions()->GetOptionVal(OPTION_PROXY_PORT);
delete m_pBackend;
m_pProxyBackend = new CProxySocket(this, m_pSocket, this);
m_pBackend = m_pProxyBackend;
int res = m_pProxyBackend->Handshake((enum CProxySocket::ProxyType)proxy_type,
m_pCurrentServer->GetHost(), m_pCurrentServer->GetPort(),
m_pEngine->GetOptions()->GetOption(OPTION_PROXY_USER),
m_pEngine->GetOptions()->GetOption(OPTION_PROXY_PASS));
if (res != EINPROGRESS)
{
LogMessage(::Error, _("Could not start proxy handshake: %s"), CSocket::GetErrorDescription(res).c_str());
DoClose();
return FZ_REPLY_ERROR;
}
}
else
{
if (m_pCurOpData && m_pCurOpData->opId == cmd_connect)
{
CConnectOpData* pData = (CConnectOpData*)m_pCurOpData;
host = ConvertDomainName(pData->host);
port = pData->port;
}
if (host == _T(""))
{
host = m_pCurrentServer->GetHost();
port = m_pCurrentServer->GetPort();
}
}
if (!IsIpAddress(host))
LogMessage(Status, _("Resolving address of %s"), host.c_str());
int res = m_pSocket->Connect(host, port);
// Treat success same as EINPROGRESS, we wait for connect notification in any case
if (res && res != EINPROGRESS)
{
LogMessage(::Error, _("Could not connect to server: %s"), CSocket::GetErrorDescription(res).c_str());
DoClose();
return FZ_REPLY_ERROR;
}
return FZ_REPLY_WOULDBLOCK;
}
int CRealControlSocket::ContinueConnect()
{
wxString host;
unsigned int port = 0;
const int proxy_type = engine_.GetOptions().GetOptionVal(OPTION_PROXY_TYPE);
if (proxy_type > CProxySocket::unknown && proxy_type < CProxySocket::proxytype_count && !m_pCurrentServer->GetBypassProxy()) {
LogMessage(MessageType::Status, _("Connecting to %s through %s proxy"), m_pCurrentServer->FormatHost(), CProxySocket::Name(static_cast<CProxySocket::ProxyType>(proxy_type)));
host = engine_.GetOptions().GetOption(OPTION_PROXY_HOST);
port = engine_.GetOptions().GetOptionVal(OPTION_PROXY_PORT);
delete m_pBackend;
m_pProxyBackend = new CProxySocket(this, m_pSocket, this);
m_pBackend = m_pProxyBackend;
int res = m_pProxyBackend->Handshake((enum CProxySocket::ProxyType)proxy_type,
m_pCurrentServer->GetHost(), m_pCurrentServer->GetPort(),
engine_.GetOptions().GetOption(OPTION_PROXY_USER),
engine_.GetOptions().GetOption(OPTION_PROXY_PASS));
if (res != EINPROGRESS) {
LogMessage(MessageType::Error, _("Could not start proxy handshake: %s"), CSocket::GetErrorDescription(res));
DoClose();
return FZ_REPLY_ERROR;
}
}
else {
if (m_pCurOpData && m_pCurOpData->opId == Command::connect) {
CConnectOpData* pData(static_cast<CConnectOpData*>(m_pCurOpData));
host = ConvertDomainName(pData->host);
port = pData->port;
}
if (host.empty()) {
host = m_pCurrentServer->GetHost();
port = m_pCurrentServer->GetPort();
}
}
if (fz::get_address_type(host.ToStdWstring()) == fz::address_type::unknown) {
LogMessage(MessageType::Status, _("Resolving address of %s"), host);
}
int res = m_pSocket->Connect(fz::to_native(host), port);
// Treat success same as EINPROGRESS, we wait for connect notification in any case
if (res && res != EINPROGRESS) {
LogMessage(MessageType::Error, _("Could not connect to server: %s"), CSocket::GetErrorDescription(res));
DoClose();
return FZ_REPLY_ERROR;
}
return FZ_REPLY_WOULDBLOCK;
}
int CRealControlSocket::Connect(const CServer &server)
{
SetWait(true);
if (server.GetEncodingType() == ENCODING_CUSTOM)
m_pCSConv = new wxCSConv(server.GetCustomEncoding());
if (m_pCurrentServer)
delete m_pCurrentServer;
m_pCurrentServer = new CServer(server);
// International domain names
m_pCurrentServer->SetHost(ConvertDomainName(server.GetHost()), server.GetPort());
return ContinueConnect();
}
int CRealControlSocket::Connect(const CServer &server)
{
SetWait(true);
if (server.GetEncodingType() == ENCODING_CUSTOM)
{
LogMessage(MessageType::Debug_Info, _T("Using custom encoding: %s"), server.GetCustomEncoding());
m_pCSConv = new wxCSConv(server.GetCustomEncoding());
}
delete m_pCurrentServer;
m_pCurrentServer = new CServer(server);
// International domain names
m_pCurrentServer->SetHost(ConvertDomainName(server.GetHost()), server.GetPort());
return ContinueConnect();
}
BOOL CControlSocket::Connect(CString hostAddress, UINT nHostPort)
{
hostAddress = ConvertDomainName(hostAddress);
//Don't resolve host asynchronously when using proxies
if (m_pProxyLayer)
{
//If using proxies, we can't use ident -> won't be reachable from outside
return CAsyncSocketEx::Connect(hostAddress, nHostPort);
}
BOOL res = CAsyncSocketEx::Connect(hostAddress, nHostPort);
int nLastError = WSAGetLastError();
if (res || nLastError==WSAEWOULDBLOCK)
{
#ifndef MPEXT_NO_IDENT
if (COptions::GetOptionVal(OPTION_IDENT))
m_pIdentControl = new CIdentServerControl(this);
#endif
WSASetLastError(nLastError);
}
return res;
}
int CRealControlSocket::Connect(const CServer &server)
{
SetWait(true);
if (server.GetEncodingType() == ENCODING_CUSTOM)
m_pCSConv = new wxCSConv(server.GetCustomEncoding());
if (m_pCurrentServer)
delete m_pCurrentServer;
m_pCurrentServer = new CServer(server);
CConnectOpData* pData;
if (!m_pCurOpData || m_pCurOpData->opId != cmd_connect)
pData = 0;
else
pData = static_cast<CConnectOpData *>(m_pCurOpData);
const wxString& host = pData ? pData->host : server.GetHost();
if (!IsIpAddress(host))
{
LogMessage(Status, _("Resolving IP-Address for %s"), host.c_str());
CAsyncHostResolver *resolver = new CAsyncHostResolver(m_pEngine, ConvertDomainName(host));
m_pEngine->AddNewAsyncHostResolver(resolver);
resolver->Create();
resolver->Run();
}
else
{
wxIPV4address addr;
addr.Hostname(host);
return ContinueConnect(&addr);
}
return FZ_REPLY_WOULDBLOCK;
}
int CHttpControlSocket::ParseHeader(CHttpOpData* pData)
{
// Parse the HTTP header.
// We do just the neccessary parsing and silently ignore most header fields
// Redirects are supported though if the server sends the Location field.
for (;;)
{
// Find line ending
unsigned int i = 0;
for (i = 0; (i + 1) < m_recvBufferPos; i++)
{
if (m_pRecvBuffer[i] == '\r')
{
if (m_pRecvBuffer[i + 1] != '\n')
{
LogMessage(::Error, _("Malformed reply, server not sending proper line endings"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
break;
}
}
if ((i + 1) >= m_recvBufferPos)
{
if (m_recvBufferPos == m_recvBufferLen)
{
// We don't support header lines larger than 4096
LogMessage(::Error, _("Too long header line"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
return FZ_REPLY_WOULDBLOCK;
}
m_pRecvBuffer[i] = 0;
const wxString& line = wxString(m_pRecvBuffer, wxConvLocal);
if (line != _T(""))
LogMessageRaw(Response, line);
if (pData->m_responseCode == -1)
{
pData->m_responseString = line;
if (m_recvBufferPos < 16 || memcmp(m_pRecvBuffer, "HTTP/1.", 7))
{
// Invalid HTTP Status-Line
LogMessage(::Error, _("Invalid HTTP Response"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
if (m_pRecvBuffer[9] < '1' || m_pRecvBuffer[9] > '5' ||
m_pRecvBuffer[10] < '0' || m_pRecvBuffer[10] > '9' ||
m_pRecvBuffer[11] < '0' || m_pRecvBuffer[11] > '9')
{
// Invalid response code
LogMessage(::Error, _("Invalid response code"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
pData->m_responseCode = (m_pRecvBuffer[9] - '0') * 100 + (m_pRecvBuffer[10] - '0') * 10 + m_pRecvBuffer[11] - '0';
if (pData->m_responseCode >= 400)
{
// Failed request
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
if (pData->m_responseCode == 305)
{
// Unsupported redirect
LogMessage(::Error, _("Unsupported redirect"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
}
else
{
if (!i)
{
// End of header, data from now on
// Redirect if neccessary
if (pData->m_responseCode >= 300)
{
if (pData->m_redirectionCount++ == 5)
{
LogMessage(::Error, _("Too many redirects"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
ResetSocket();
ResetHttpData(pData);
wxString host;
enum ServerProtocol protocol;
int pos;
if ((pos = pData->m_newLocation.Find(_T("://"))) != -1)
{
protocol = CServer::GetProtocolFromPrefix(pData->m_newLocation.Left(pos));
host = pData->m_newLocation.Mid(pos + 3);
}
else
{
protocol = HTTP;
host = pData->m_newLocation;
}
if ((pos = host.Find(_T("/"))) != -1)
host = host.Left(pos);
unsigned long port;
if ((pos = host.Find(':', true)) != -1)
{
wxString strport = host.Mid(pos + 1);
if (!strport.ToULong(&port) || port < 1 || port > 65535)
{
if (protocol == HTTPS)
port = 443;
else
port = 80;
}
host = host.Left(pos);
}
else
{
if (protocol == HTTPS)
port = 443;
else
port = 80;
}
if (host == _T(""))
{
// Unsupported redirect
LogMessage(::Error, _("Redirection to invalid address"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
pData->m_newHostWithPort = wxString::Format(_T("%s:%d"), host.c_str(), (int)port);
// International domain names
host = ConvertDomainName(host);
int res = InternalConnect(host, port, protocol == HTTPS);
if (res == FZ_REPLY_WOULDBLOCK)
res |= FZ_REPLY_REDIRECTED;
return res;
}
pData->m_gotHeader = true;
memmove(m_pRecvBuffer, m_pRecvBuffer + 2, m_recvBufferPos - 2);
m_recvBufferPos -= 2;
if (m_recvBufferPos)
{
int res;
if (pData->m_transferEncoding == pData->chunked)
res = OnChunkedData(pData);
else
{
pData->m_receivedData += m_recvBufferPos;
res = ProcessData(m_pRecvBuffer, m_recvBufferPos);
m_recvBufferPos = 0;
}
return res;
}
return FZ_REPLY_WOULDBLOCK;
}
if (m_recvBufferPos > 12 && !memcmp(m_pRecvBuffer, "Location: ", 10))
{
pData->m_newLocation = wxString(m_pRecvBuffer + 10, wxConvLocal);
}
else if (m_recvBufferPos > 21 && !memcmp(m_pRecvBuffer, "Transfer-Encoding: ", 19))
{
if (!strcmp(m_pRecvBuffer + 19, "chunked"))
pData->m_transferEncoding = CHttpOpData::chunked;
else if (!strcmp(m_pRecvBuffer + 19, "identity"))
pData->m_transferEncoding = CHttpOpData::identity;
else
pData->m_transferEncoding = CHttpOpData::unknown;
}
else if (i > 16 && !memcmp(m_pRecvBuffer, "Content-Length: ", 16))
{
pData->m_totalSize = 0;
char* p = m_pRecvBuffer + 16;
while (*p)
{
if (*p < '0' || *p > '9')
{
LogMessage(::Error, _("Malformed header: %s"), _("Invalid Content-Length"));
ResetOperation(FZ_REPLY_ERROR);
return FZ_REPLY_ERROR;
}
pData->m_totalSize = pData->m_totalSize * 10 + *p++ - '0';
}
}
}
memmove(m_pRecvBuffer, m_pRecvBuffer + i + 2, m_recvBufferPos - i - 2);
m_recvBufferPos -= i + 2;
if (!m_recvBufferPos)
break;
}
return FZ_REPLY_WOULDBLOCK;
}
